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gcc: use .eh_frame sections for exception handling stack unwind - saves about 400...
[openwrt.git] / toolchain / uClibc / patches-0.9.32 / 600-ubicom32-uClibc.patch
1 --- a/Rules.mak
2 +++ b/Rules.mak
3 @@ -482,6 +482,17 @@ ifeq ($(TARGET_ARCH),i960)
4 SYMBOL_PREFIX=_
5 endif
6
7 +ifeq ($(TARGET_ARCH),ubicom32)
8 + OPTIMIZATION+=-fstrict-aliasing
9 + CPU_CFLAGS-$(CONFIG_UBICOM32_V3)+=-march=ubicom32v3
10 + CPU_CFLAGS-$(CONFIG_UBICOM32_V4)+=-march=ubicom32v4
11 +ifeq ($(UCLIBC_FORMAT_FDPIC_ELF),y)
12 + CPU_CFLAGS-y:=-mfdpic
13 + CPU_LDFLAGS-y += -Wl,-melf32ubicom32fdpic
14 +endif
15 +
16 +endif
17 +
18 ifeq ($(TARGET_ARCH),v850)
19 SYMBOL_PREFIX=_
20 endif
21 --- a/extra/Configs/Config.in
22 +++ b/extra/Configs/Config.in
23 @@ -102,6 +102,9 @@ config TARGET_sh64
24 config TARGET_sparc
25 bool "sparc"
26
27 +config TARGET_ubicom32
28 + bool "ubicom32"
29 +
30 config TARGET_v850
31 bool "v850 (BROKEN)"
32
33 @@ -206,6 +209,10 @@ if TARGET_sparc
34 source "extra/Configs/Config.sparc"
35 endif
36
37 +if TARGET_ubicom32
38 +source "extra/Configs/Config.ubicom32"
39 +endif
40 +
41 if TARGET_v850
42 source "extra/Configs/Config.v850"
43 endif
44 --- a/extra/Configs/Config.in.arch
45 +++ b/extra/Configs/Config.in.arch
46 @@ -153,7 +153,7 @@ config UCLIBC_HAS_SOFT_FLOAT
47 config DO_C99_MATH
48 bool "Enable full C99 math library support"
49 depends on UCLIBC_HAS_FLOATS
50 - default n
51 + default y
52 help
53 If you want the uClibc math library to contain the full set C99
54 math library features, then answer Y. If you leave this set to
55 --- /dev/null
56 +++ b/extra/Configs/Config.ubicom32
57 @@ -0,0 +1,44 @@
58 +#
59 +# For a description of the syntax of this configuration file,
60 +# see extra/config/Kconfig-language.txt
61 +#
62 +
63 +config TARGET_ARCH
64 + string
65 + default "ubicom32"
66 +
67 +config FORCE_OPTIONS_FOR_ARCH
68 + bool
69 + default y
70 + select ARCH_BIG_ENDIAN
71 + select ARCH_HAS_NO_MMU
72 +
73 +choice
74 + prompt "Target Processor Architecture"
75 + default CONFIG_UC_UBICOM32_V3
76 + help
77 + This selects the instruction set architecture of your Ubicom32 CPU. This
78 + information is used for optimizing purposes. To build a library that
79 + will run on any Ubicom32 CPU, you can specify "v3" here.
80 + If you pick anything other than "v3," there is no
81 + guarantee that uClibc will even run on anything other than the
82 + selected processor type.
83 +
84 + You should probably select the Ubicom32 ISA that best matches the
85 + CPU you will be using on your device. uClibc will be tuned
86 + for that architecture.
87 +
88 + If you don't know what to do, choose "v3"
89 +
90 +config CONFIG_UC_UBICOM32_V3
91 + bool "ISA v3"
92 +
93 +config CONFIG_UC_UBICOM32_V4
94 + bool "ISA v4"
95 +endchoice
96 +
97 +config ARCH_CFLAGS
98 + string
99 +
100 +config CROSS
101 + string
102 --- a/include/elf.h
103 +++ b/include/elf.h
104 @@ -338,6 +338,8 @@ typedef struct
105
106 #define EM_XSTORMY16 0xad45
107
108 +#define EM_UBICOM32 0xde3d /* Ubicom32; no ABI */
109 +
110 /* FRV magic number - no EABI available??. */
111 #define EM_CYGNUS_FRV 0x5441
112
113 @@ -3108,6 +3110,55 @@ typedef Elf32_Addr Elf32_Conflict;
114
115 #define DT_C6000_NUM 4
116
117 +/* Ubicom32 ELF relocation types */
118 +#define R_UBICOM32_NONE 0
119 +#define R_UBICOM32_16 1
120 +#define R_UBICOM32_32 2
121 +#define R_UBICOM32_LO16 3
122 +#define R_UBICOM32_HI16 4
123 +#define R_UBICOM32_21_PCREL 5
124 +#define R_UBICOM32_24_PCREL 6
125 +#define R_UBICOM32_HI24 7
126 +#define R_UBICOM32_LO7_S 8
127 +#define R_UBICOM32_LO7_2_S 9
128 +#define R_UBICOM32_LO7_4_S 10
129 +#define R_UBICOM32_LO7_D 11
130 +#define R_UBICOM32_LO7_2_D 12
131 +#define R_UBICOM32_LO7_4_D 13
132 +#define R_UBICOM32_32_HARVARD 14
133 +#define R_UBICOM32_LO7_CALLI 15
134 +#define R_UBICOM32_LO16_CALLI 16
135 +#define R_UBICOM32_GOT_HI24 17
136 +#define R_UBICOM32_GOT_LO7_S 18
137 +#define R_UBICOM32_GOT_LO7_2_S 19
138 +#define R_UBICOM32_GOT_LO7_4_S 20
139 +#define R_UBICOM32_GOT_LO7_D 21
140 +#define R_UBICOM32_GOT_LO7_2_D 22
141 +#define R_UBICOM32_GOT_LO7_4_D 23
142 +#define R_UBICOM32_FUNCDESC_GOT_HI24 24
143 +#define R_UBICOM32_FUNCDESC_GOT_LO7_S 25
144 +#define R_UBICOM32_FUNCDESC_GOT_LO7_2_S 26
145 +#define R_UBICOM32_FUNCDESC_GOT_LO7_4_S 27
146 +#define R_UBICOM32_FUNCDESC_GOT_LO7_D 28
147 +#define R_UBICOM32_FUNCDESC_GOT_LO7_2_D 29
148 +#define R_UBICOM32_FUNCDESC_GOT_LO7_4_D 30
149 +#define R_UBICOM32_GOT_LO7_CALLI 31
150 +#define R_UBICOM32_FUNCDESC_GOT_LO7_CALLI 32
151 +#define R_UBICOM32_FUNCDESC_VALUE 33
152 +#define R_UBICOM32_FUNCDESC 34
153 +#define R_UBICOM32_GOTOFFSET_LO 35
154 +#define R_UBICOM32_GOTOFFSET_HI 36
155 +#define R_UBICOM32_FUNCDESC_GOTOFFSET_LO 37
156 +#define R_UBICOM32_FUNCDESC_GOTOFFSET_HI 38
157 +#define R_UBICOM32_GNU_VTINHERIT 200
158 +#define R_UBICOM32_GNU_VTENTRY 201
159 +
160 +/* Ubicom32 Flags. */
161 +#define EF_UBICOM32_V3 0x00000001 /* -fmarch=ubicom32v3 */
162 +#define EF_UBICOM32_V4 0x00000002 /* -fmarch=ubicom32v4 */
163 +#define EF_UBICOM32_PIC 0x80000000 /* -fpic */
164 +#define EF_UBICOM32_FDPIC 0x40000000 /* -mfdpic */
165 +
166 #ifdef __cplusplus
167 }
168 #endif
169 --- a/include/features.h
170 +++ b/include/features.h
171 @@ -448,4 +448,10 @@ uClibc was built without large file supp
172 # include <libc-internal.h>
173 #endif
174
175 +#ifndef libc_hidden_proto
176 +#define libc_hidden_proto(name, attrs...)
177 +#endif
178 +#ifndef libm_hidden_proto
179 +#define libm_hidden_proto(name, attrs...)
180 +#endif
181 #endif /* features.h */
182 --- a/ldso/ldso/dl-startup.c
183 +++ b/ldso/ldso/dl-startup.c
184 @@ -164,10 +164,13 @@ DL_START(unsigned long args)
185 aux_dat += 2;
186 }
187
188 +#if !defined __FDPIC__
189 /* locate the ELF header. We need this done as soon as possible
190 * (esp since SEND_STDERR() needs this on some platforms... */
191 if (!auxvt[AT_BASE].a_un.a_val)
192 auxvt[AT_BASE].a_un.a_val = elf_machine_load_address();
193 +#endif
194 +
195 DL_INIT_LOADADDR_BOOT(load_addr, auxvt[AT_BASE].a_un.a_val);
196 header = (ElfW(Ehdr) *) auxvt[AT_BASE].a_un.a_val;
197
198 --- a/ldso/ldso/ldso.c
199 +++ b/ldso/ldso/ldso.c
200 @@ -325,10 +325,12 @@ void _dl_get_ready_to_run(struct elf_res
201 _dl_progname = argv[0];
202 }
203
204 +#if 0 // blackfin does this, we do to avoid die during reloc
205 if (_start == (void *) auxvt[AT_ENTRY].a_un.a_val) {
206 _dl_dprintf(_dl_debug_file, "Standalone execution is not supported yet\n");
207 _dl_exit(1);
208 }
209 +#endif
210
211 /* Start to build the tables of the modules that are required for
212 * this beast to run. We start with the basic executable, and then
213 --- /dev/null
214 +++ b/ldso/ldso/ubicom32/dl-debug.h
215 @@ -0,0 +1,72 @@
216 +/* vi: set sw=4 ts=4: */
217 +/* Ubicom32 ELF shared library loader suppport
218 + *
219 + * Copyright (c) 2009 Ubicom Inc.
220 + * Copyright (c) 1994-2000 Eric Youngdale, Peter MacDonald,
221 + * David Engel, Hongjiu Lu and Mitch D'Souza
222 + * Copyright (C) 2001-2004 Erik Andersen
223 + *
224 + * All rights reserved.
225 + *
226 + * Redistribution and use in source and binary forms, with or without
227 + * modification, are permitted provided that the following conditions
228 + * are met:
229 + * 1. Redistributions of source code must retain the above copyright
230 + * notice, this list of conditions and the following disclaimer.
231 + * 2. The name of the above contributors may not be
232 + * used to endorse or promote products derived from this software
233 + * without specific prior written permission.
234 + *
235 + * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND
236 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
237 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
238 + * ARE DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE
239 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
240 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
241 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
242 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
243 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
244 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
245 + * SUCH DAMAGE.
246 + */
247 +
248 +static const char *_dl_reltypes_tab[] =
249 +{
250 + "R_UBICOM32_NONE", /* 0 */
251 + "R_UBICOM32_16",
252 + "R_UBICOM32_32",
253 + "R_UBICOM32_LO16",
254 + "R_UBICOM32_HI16",
255 + "R_UBICOM32_21_PCREL", /* 5 */
256 + "R_UBICOM32_24_PCREL",
257 + "R_UBICOM32_HI24",
258 + "R_UBICOM32_LO7_S",
259 + "R_UBICOM32_LO7_2_S",
260 + "R_UBICOM32_LO7_4_S", /* 10 */
261 + "R_UBICOM32_LO7_D",
262 + "R_UBICOM32_LO7_2_D",
263 + "R_UBICOM32_LO7_4_D",
264 + "R_UBICOM32_32_HARVARD",
265 + "R_UBICOM32_LO7_CALLI", /* 15 */
266 + "R_UBICOM32_LO16_CALLI",
267 + "R_UBICOM32_GOT_HI24",
268 + "R_UBICOM32_GOT_LO7_S",
269 + "R_UBICOM32_GOT_LO7_2_S"
270 + "R_UBICOM32_GOT_LO7_4_S", /* 20 */
271 + "R_UBICOM32_GOT_LO7_D",
272 + "R_UBICOM32_GOT_LO7_2_D",
273 + "R_UBICOM32_GOT_LO7_4_D",
274 + "R_UBICOM32_FUNCDESC_GOT_HI24 24",
275 + "R_UBICOM32_FUNCDESC_GOT_LO7_S", /* 25 */
276 + "R_UBICOM32_FUNCDESC_GOT_LO7_2_S",
277 + "R_UBICOM32_FUNCDESC_GOT_LO7_4_S",
278 + "R_UBICOM32_FUNCDESC_GOT_LO7_D",
279 + "R_UBICOM32_FUNCDESC_GOT_LO7_2_D",
280 + "R_UBICOM32_FUNCDESC_GOT_LO7_4_D", /* 30 */
281 + "R_UBICOM32_GOT_LO7_CALLI",
282 + "R_UBICOM32_FUNCDESC_VALUE",
283 + "R_UBICOM32_FUNCDESC",
284 +#if 1
285 + [200] "R_UBICOM32_GNU_VTINHERIT" , "R_UBICOM32_GNU_VTENTRY"
286 +#endif
287 +};
288 --- /dev/null
289 +++ b/ldso/ldso/ubicom32/dl-inlines.h
290 @@ -0,0 +1,582 @@
291 + /* Copyright (C) 2003, 2004 Red Hat, Inc.
292 + Contributed by Alexandre Oliva <aoliva@redhat.com>
293 +
294 +This file is part of uClibc.
295 +
296 +uClibc is free software; you can redistribute it and/or modify it
297 +under the terms of the GNU Lesser General Public License as
298 +published by the Free Software Foundation; either version 2.1 of the
299 +License, or (at your option) any later version.
300 +
301 +uClibc is distributed in the hope that it will be useful, but WITHOUT
302 +ANY WARRANTY; without even the implied warranty of
303 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
304 +Library General Public License for more details.
305 +
306 +You should have received a copy of the GNU Lesser General Public
307 +License along with uClibc; see the file COPYING.LIB. If not, write to
308 +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
309 +USA. */
310 +
311 +//#include <bfin_sram.h>
312 +#define SRAM_TEST(x) 0
313 +#ifndef _dl_assert
314 +# define _dl_assert(expr)
315 +#endif
316 +
317 +/* Initialize a DL_LOADADDR_TYPE given a got pointer and a complete
318 + load map. */
319 +static __always_inline void
320 +__dl_init_loadaddr_map (struct elf32_fdpic_loadaddr *loadaddr, Elf32_Addr dl_boot_got_pointer,
321 + struct elf32_fdpic_loadmap *map)
322 +{
323 + if (map->version != 0)
324 + {
325 + SEND_EARLY_STDERR ("Invalid loadmap version number\n");
326 + _dl_exit(-1);
327 + }
328 + if (map->nsegs == 0)
329 + {
330 + SEND_EARLY_STDERR ("Invalid segment count in loadmap\n");
331 + _dl_exit(-1);
332 + }
333 + loadaddr->got_value = (void*)dl_boot_got_pointer;
334 + loadaddr->map = map;
335 +}
336 +
337 +/* Figure out how many LOAD segments there are in the given headers,
338 + and allocate a block for the load map big enough for them.
339 + got_value will be properly initialized later on, with INIT_GOT. */
340 +static __always_inline int
341 +__dl_init_loadaddr (struct elf32_fdpic_loadaddr *loadaddr, Elf32_Phdr *ppnt,
342 + int pcnt)
343 +{
344 + int count = 0, i;
345 + size_t size;
346 +
347 + for (i = 0; i < pcnt; i++)
348 + if (ppnt[i].p_type == PT_LOAD)
349 + count++;
350 +
351 + loadaddr->got_value = 0;
352 +
353 + size = sizeof (struct elf32_fdpic_loadmap)
354 + + sizeof (struct elf32_fdpic_loadseg) * count;
355 + loadaddr->map = _dl_malloc (size);
356 + if (! loadaddr->map)
357 + _dl_exit (-1);
358 +
359 + loadaddr->map->version = 0;
360 + loadaddr->map->nsegs = 0;
361 +
362 + return count;
363 +}
364 +
365 +#if defined (__SUPPORT_LD_DEBUG__)
366 +extern char *_dl_debug;
367 +extern int _dl_debug_file;
368 +#endif
369 +
370 +/* Incrementally initialize a load map. */
371 +static __always_inline void
372 +__dl_init_loadaddr_hdr (struct elf32_fdpic_loadaddr loadaddr, void *addr,
373 + Elf32_Phdr *phdr, int maxsegs)
374 +{
375 + struct elf32_fdpic_loadseg *segdata;
376 +
377 + if (loadaddr.map->nsegs == maxsegs)
378 + _dl_exit (-1);
379 +
380 + segdata = &loadaddr.map->segs[loadaddr.map->nsegs++];
381 + segdata->addr = (Elf32_Addr) addr;
382 + segdata->p_vaddr = phdr->p_vaddr;
383 + segdata->p_memsz = phdr->p_memsz;
384 +
385 +#if defined (__SUPPORT_LD_DEBUG__)
386 + {
387 + if (_dl_debug)
388 + _dl_dprintf(_dl_debug_file, "%i: mapped %x at %x, size %x\n",
389 + loadaddr.map->nsegs-1,
390 + segdata->p_vaddr, segdata->addr, segdata->p_memsz);
391 + }
392 +#endif
393 +}
394 +
395 +static __always_inline void __dl_loadaddr_unmap
396 +(struct elf32_fdpic_loadaddr loadaddr, struct funcdesc_ht *funcdesc_ht);
397 +
398 +/* Figure out whether the given address is in one of the mapped
399 + segments. */
400 +static __always_inline int
401 +__dl_addr_in_loadaddr (void *p, struct elf32_fdpic_loadaddr loadaddr)
402 +{
403 + struct elf32_fdpic_loadmap *map = loadaddr.map;
404 + int c;
405 +
406 + for (c = 0; c < map->nsegs; c++)
407 + if ((void*)map->segs[c].addr <= p
408 + && (char*)p < (char*)map->segs[c].addr + map->segs[c].p_memsz)
409 + return 1;
410 +
411 + return 0;
412 +}
413 +
414 +static __always_inline void * _dl_funcdesc_for (void *entry_point, void *got_value);
415 +
416 +/* The hashcode handling code below is heavily inspired in libiberty's
417 + hashtab code, but with most adaptation points and support for
418 + deleting elements removed.
419 +
420 + Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
421 + Contributed by Vladimir Makarov (vmakarov@cygnus.com). */
422 +
423 +static __always_inline unsigned long
424 +higher_prime_number (unsigned long n)
425 +{
426 + /* These are primes that are near, but slightly smaller than, a
427 + power of two. */
428 + static const unsigned long primes[] = {
429 + (unsigned long) 7,
430 + (unsigned long) 13,
431 + (unsigned long) 31,
432 + (unsigned long) 61,
433 + (unsigned long) 127,
434 + (unsigned long) 251,
435 + (unsigned long) 509,
436 + (unsigned long) 1021,
437 + (unsigned long) 2039,
438 + (unsigned long) 4093,
439 + (unsigned long) 8191,
440 + (unsigned long) 16381,
441 + (unsigned long) 32749,
442 + (unsigned long) 65521,
443 + (unsigned long) 131071,
444 + (unsigned long) 262139,
445 + (unsigned long) 524287,
446 + (unsigned long) 1048573,
447 + (unsigned long) 2097143,
448 + (unsigned long) 4194301,
449 + (unsigned long) 8388593,
450 + (unsigned long) 16777213,
451 + (unsigned long) 33554393,
452 + (unsigned long) 67108859,
453 + (unsigned long) 134217689,
454 + (unsigned long) 268435399,
455 + (unsigned long) 536870909,
456 + (unsigned long) 1073741789,
457 + (unsigned long) 2147483647,
458 + /* 4294967291L */
459 + ((unsigned long) 2147483647) + ((unsigned long) 2147483644),
460 + };
461 +
462 + const unsigned long *low = &primes[0];
463 + const unsigned long *high = &primes[sizeof(primes) / sizeof(primes[0])];
464 +
465 + while (low != high)
466 + {
467 + const unsigned long *mid = low + (high - low) / 2;
468 + if (n > *mid)
469 + low = mid + 1;
470 + else
471 + high = mid;
472 + }
473 +
474 +#if 0
475 + /* If we've run out of primes, abort. */
476 + if (n > *low)
477 + {
478 + fprintf (stderr, "Cannot find prime bigger than %lu\n", n);
479 + abort ();
480 + }
481 +#endif
482 +
483 + return *low;
484 +}
485 +
486 +struct funcdesc_ht
487 +{
488 + /* Table itself. */
489 + struct funcdesc_value **entries;
490 +
491 + /* Current size (in entries) of the hash table */
492 + size_t size;
493 +
494 + /* Current number of elements. */
495 + size_t n_elements;
496 +};
497 +
498 +static __always_inline int
499 +hash_pointer (const void *p)
500 +{
501 + return (int) ((long)p >> 3);
502 +}
503 +
504 +static __always_inline struct funcdesc_ht *
505 +htab_create (void)
506 +{
507 + struct funcdesc_ht *ht = _dl_malloc (sizeof (struct funcdesc_ht));
508 +
509 + if (! ht)
510 + return NULL;
511 + ht->size = 3;
512 + ht->entries = _dl_malloc (sizeof (struct funcdesc_ht_value *) * ht->size);
513 + if (! ht->entries)
514 + return NULL;
515 +
516 + ht->n_elements = 0;
517 +
518 + _dl_memset (ht->entries, 0, sizeof (struct funcdesc_ht_value *) * ht->size);
519 +
520 + return ht;
521 +}
522 +
523 +/* This is only called from _dl_loadaddr_unmap, so it's safe to call
524 + _dl_free(). See the discussion below. */
525 +static __always_inline void
526 +htab_delete (struct funcdesc_ht *htab)
527 +{
528 + int i;
529 +
530 + for (i = htab->size - 1; i >= 0; i--)
531 + if (htab->entries[i])
532 + _dl_free (htab->entries[i]);
533 +
534 + _dl_free (htab->entries);
535 + _dl_free (htab);
536 +}
537 +
538 +/* Similar to htab_find_slot, but without several unwanted side effects:
539 + - Does not call htab->eq_f when it finds an existing entry.
540 + - Does not change the count of elements/searches/collisions in the
541 + hash table.
542 + This function also assumes there are no deleted entries in the table.
543 + HASH is the hash value for the element to be inserted. */
544 +
545 +static __always_inline struct funcdesc_value **
546 +find_empty_slot_for_expand (struct funcdesc_ht *htab, int hash)
547 +{
548 + size_t size = htab->size;
549 + unsigned int index = hash % size;
550 + struct funcdesc_value **slot = htab->entries + index;
551 + int hash2;
552 +
553 + if (! *slot)
554 + return slot;
555 +
556 + hash2 = 1 + hash % (size - 2);
557 + for (;;)
558 + {
559 + index += hash2;
560 + if (index >= size)
561 + index -= size;
562 +
563 + slot = htab->entries + index;
564 + if (! *slot)
565 + return slot;
566 + }
567 +}
568 +
569 +/* The following function changes size of memory allocated for the
570 + entries and repeatedly inserts the table elements. The occupancy
571 + of the table after the call will be about 50%. Naturally the hash
572 + table must already exist. Remember also that the place of the
573 + table entries is changed. If memory allocation failures are allowed,
574 + this function will return zero, indicating that the table could not be
575 + expanded. If all goes well, it will return a non-zero value. */
576 +
577 +static __always_inline int
578 +htab_expand (struct funcdesc_ht *htab)
579 +{
580 + struct funcdesc_value **oentries;
581 + struct funcdesc_value **olimit;
582 + struct funcdesc_value **p;
583 + struct funcdesc_value **nentries;
584 + size_t nsize;
585 +
586 + oentries = htab->entries;
587 + olimit = oentries + htab->size;
588 +
589 + /* Resize only when table after removal of unused elements is either
590 + too full or too empty. */
591 + if (htab->n_elements * 2 > htab->size)
592 + nsize = higher_prime_number (htab->n_elements * 2);
593 + else
594 + nsize = htab->size;
595 +
596 + nentries = _dl_malloc (sizeof (struct funcdesc_value *) * nsize);
597 + _dl_memset (nentries, 0, sizeof (struct funcdesc_value *) * nsize);
598 + if (nentries == NULL)
599 + return 0;
600 + htab->entries = nentries;
601 + htab->size = nsize;
602 +
603 + p = oentries;
604 + do
605 + {
606 + if (*p)
607 + *find_empty_slot_for_expand (htab, hash_pointer ((*p)->entry_point))
608 + = *p;
609 +
610 + p++;
611 + }
612 + while (p < olimit);
613 +
614 +#if 0 /* We can't tell whether this was allocated by the _dl_malloc()
615 + built into ld.so or malloc() in the main executable or libc,
616 + and calling free() for something that wasn't malloc()ed could
617 + do Very Bad Things (TM). Take the conservative approach
618 + here, potentially wasting as much memory as actually used by
619 + the hash table, even if multiple growths occur. That's not
620 + so bad as to require some overengineered solution that would
621 + enable us to keep track of how it was allocated. */
622 + _dl_free (oentries);
623 +#endif
624 + return 1;
625 +}
626 +
627 +/* This function searches for a hash table slot containing an entry
628 + equal to the given element. To delete an entry, call this with
629 + INSERT = 0, then call htab_clear_slot on the slot returned (possibly
630 + after doing some checks). To insert an entry, call this with
631 + INSERT = 1, then write the value you want into the returned slot.
632 + When inserting an entry, NULL may be returned if memory allocation
633 + fails. */
634 +
635 +static __always_inline struct funcdesc_value **
636 +htab_find_slot (struct funcdesc_ht *htab, void *ptr, int insert)
637 +{
638 + unsigned int index;
639 + int hash, hash2;
640 + size_t size;
641 + struct funcdesc_value **entry;
642 +
643 + if (htab->size * 3 <= htab->n_elements * 4
644 + && htab_expand (htab) == 0)
645 + return NULL;
646 +
647 + hash = hash_pointer (ptr);
648 +
649 + size = htab->size;
650 + index = hash % size;
651 +
652 + entry = &htab->entries[index];
653 + if (!*entry)
654 + goto empty_entry;
655 + else if ((*entry)->entry_point == ptr)
656 + return entry;
657 +
658 + hash2 = 1 + hash % (size - 2);
659 + for (;;)
660 + {
661 + index += hash2;
662 + if (index >= size)
663 + index -= size;
664 +
665 + entry = &htab->entries[index];
666 + if (!*entry)
667 + goto empty_entry;
668 + else if ((*entry)->entry_point == ptr)
669 + return entry;
670 + }
671 +
672 + empty_entry:
673 + if (!insert)
674 + return NULL;
675 +
676 + htab->n_elements++;
677 + return entry;
678 +}
679 +
680 +void *
681 +_dl_funcdesc_for (void *entry_point, void *got_value)
682 +{
683 + struct elf_resolve *tpnt = ((void**)got_value)[2];
684 + struct funcdesc_ht *ht = tpnt->funcdesc_ht;
685 + struct funcdesc_value **entry;
686 +
687 + _dl_assert (got_value == tpnt->loadaddr.got_value);
688 +
689 + if (! ht)
690 + {
691 + ht = htab_create ();
692 + if (! ht)
693 + return (void*)-1;
694 + tpnt->funcdesc_ht = ht;
695 + }
696 +
697 + entry = htab_find_slot (ht, entry_point, 1);
698 + if (*entry)
699 + {
700 + _dl_assert ((*entry)->entry_point == entry_point);
701 + return _dl_stabilize_funcdesc (*entry);
702 + }
703 +
704 + *entry = _dl_malloc (sizeof (struct funcdesc_value));
705 + (*entry)->entry_point = entry_point;
706 + (*entry)->got_value = got_value;
707 +
708 + return _dl_stabilize_funcdesc (*entry);
709 +}
710 +
711 +static __always_inline void const *
712 +_dl_lookup_address (void const *address)
713 +{
714 + struct elf_resolve *rpnt;
715 + struct funcdesc_value const *fd;
716 +
717 + /* Make sure we don't make assumptions about its alignment. */
718 + __asm__ ("" : "+r" (address));
719 +
720 + if ((Elf32_Addr)address & 7)
721 + /* It's not a function descriptor. */
722 + return address;
723 +
724 + fd = (struct funcdesc_value const *)address;
725 +
726 + for (rpnt = _dl_loaded_modules; rpnt; rpnt = rpnt->next)
727 + {
728 + if (! rpnt->funcdesc_ht)
729 + continue;
730 +
731 + if (fd->got_value != rpnt->loadaddr.got_value)
732 + continue;
733 +
734 + address = htab_find_slot (rpnt->funcdesc_ht, (void*)fd->entry_point, 0);
735 +
736 + if (address && *(struct funcdesc_value *const*)address == fd)
737 + {
738 + address = (*(struct funcdesc_value *const*)address)->entry_point;
739 + break;
740 + }
741 + else
742 + address = fd;
743 + }
744 +
745 + return address;
746 +}
747 +
748 +void
749 +__dl_loadaddr_unmap (struct elf32_fdpic_loadaddr loadaddr,
750 + struct funcdesc_ht *funcdesc_ht)
751 +{
752 + int i;
753 +
754 + for (i = 0; i < loadaddr.map->nsegs; i++)
755 + {
756 + struct elf32_fdpic_loadseg *segdata;
757 + ssize_t offs;
758 + segdata = loadaddr.map->segs + i;
759 +
760 +#if 0 /* SRAM */
761 + /* FIXME:
762 + A more cleaner way is to add type for struct elf32_fdpic_loadseg,
763 + and release the memory according to the type.
764 + Currently, we hardcode the memory address of L1 SRAM. */
765 + if ((segdata->addr & 0xff800000) == 0xff800000)
766 + {
767 + _dl_sram_free ((void *)segdata->addr);
768 + continue;
769 + }
770 +#endif
771 + offs = (segdata->p_vaddr & ADDR_ALIGN);
772 + _dl_munmap ((void*)segdata->addr - offs,
773 + segdata->p_memsz + offs);
774 + }
775 + /* _dl_unmap is only called for dlopen()ed libraries, for which
776 + calling free() is safe, or before we've completed the initial
777 + relocation, in which case calling free() is probably pointless,
778 + but still safe. */
779 + _dl_free (loadaddr.map);
780 + if (funcdesc_ht)
781 + htab_delete (funcdesc_ht);
782 +}
783 +
784 +#if 0 /* XXX TODO will look at enabling this if we decide to add support for OCM
785 + * code/data */
786 +// OLD BLACKFIN CODE
787 +static __always_inline int
788 +__dl_is_special_segment (Elf32_Ehdr *epnt,
789 + Elf32_Phdr *ppnt)
790 +{
791 + if (ppnt->p_type != PT_LOAD)
792 + return 0;
793 +
794 + if ((epnt->e_flags & EF_BFIN_CODE_IN_L1)
795 + && !(ppnt->p_flags & PF_W)
796 + && (ppnt->p_flags & PF_X))
797 + return 1;
798 +
799 + if ((epnt->e_flags & EF_BFIN_DATA_IN_L1)
800 + && (ppnt->p_flags & PF_W)
801 + && !(ppnt->p_flags & PF_X))
802 + return 1;
803 +
804 + /* 0xff700000, 0xff800000, 0xff900000 and 0xffa00000 are also used in
805 + GNU ld and linux kernel. They need to be keep synchronized. */
806 + if (ppnt->p_vaddr == 0xff700000
807 + || ppnt->p_vaddr == 0xff800000
808 + || ppnt->p_vaddr == 0xff900000
809 + || ppnt->p_vaddr == 0xffa00000)
810 + return 1;
811 +
812 + return 0;
813 +}
814 +
815 +static __always_inline char *
816 +__dl_map_segment (Elf32_Ehdr *epnt,
817 + Elf32_Phdr *ppnt,
818 + int infile,
819 + int flags)
820 +{
821 + char *status, *tryaddr, *l1addr;
822 + size_t size;
823 +
824 +
825 + if (((epnt->e_flags & EF_BFIN_CODE_IN_L1) || ppnt->p_vaddr == 0xffa00000)
826 + && !(ppnt->p_flags & PF_W)
827 + && (ppnt->p_flags & PF_X)) {
828 + status = (char *) _dl_mmap
829 + (tryaddr = 0,
830 + size = (ppnt->p_vaddr & ADDR_ALIGN) + ppnt->p_filesz,
831 + LXFLAGS(ppnt->p_flags),
832 + flags | MAP_EXECUTABLE | MAP_DENYWRITE,
833 + infile, ppnt->p_offset & OFFS_ALIGN);
834 + if (_dl_mmap_check_error(status)
835 + || (tryaddr && tryaddr != status))
836 + return NULL;
837 + l1addr = (char *) _dl_sram_alloc (ppnt->p_filesz, L1_INST_SRAM);
838 + if (l1addr != NULL)
839 + _dl_dma_memcpy (l1addr, status + (ppnt->p_vaddr & ADDR_ALIGN), ppnt->p_filesz);
840 + _dl_munmap (status, size);
841 + if (l1addr == NULL)
842 + _dl_dprintf(2, "%s:%i: L1 allocation failed\n", _dl_progname, __LINE__);
843 + return l1addr;
844 + }
845 +
846 + if (((epnt->e_flags & EF_BFIN_DATA_IN_L1)
847 + || ppnt->p_vaddr == 0xff700000
848 + || ppnt->p_vaddr == 0xff800000
849 + || ppnt->p_vaddr == 0xff900000)
850 + && (ppnt->p_flags & PF_W)
851 + && !(ppnt->p_flags & PF_X)) {
852 + if (ppnt->p_vaddr == 0xff800000)
853 + l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_A_SRAM);
854 + else if (ppnt->p_vaddr == 0xff900000)
855 + l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_B_SRAM);
856 + else
857 + l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_SRAM);
858 + if (l1addr == NULL) {
859 + _dl_dprintf(2, "%s:%i: L1 allocation failed\n", _dl_progname, __LINE__);
860 + } else {
861 + if (_DL_PREAD (infile, l1addr, ppnt->p_filesz, ppnt->p_offset) != ppnt->p_filesz) {
862 + _dl_sram_free (l1addr);
863 + return NULL;
864 + }
865 + if (ppnt->p_filesz < ppnt->p_memsz)
866 + _dl_memset (l1addr + ppnt->p_filesz, 0, ppnt->p_memsz - ppnt->p_filesz);
867 + }
868 + return l1addr;
869 + }
870 + return 0;
871 +}
872 +#endif
873 --- /dev/null
874 +++ b/ldso/ldso/ubicom32/dl-startup.h
875 @@ -0,0 +1,232 @@
876 +/*
877 + Copyright (C) 2009 Ubicom, Inc.
878 + Copyright (C) 2003 Red Hat, Inc.
879 + Contributed by Alexandre Oliva <aoliva@redhat.com>
880 +
881 +This file is part of uClibc.
882 +
883 +uClibc is free software; you can redistribute it and/or modify it
884 +under the terms of the GNU Lesser General Public License as
885 +published by the Free Software Foundation; either version 2.1 of the
886 +License, or (at your option) any later version.
887 +
888 +uClibc is distributed in the hope that it will be useful, but WITHOUT
889 +ANY WARRANTY; without even the implied warranty of
890 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
891 +Library General Public License for more details.
892 +
893 +You should have received a copy of the GNU Lesser General Public
894 +License along with uClibc; see the file COPYING.LIB. If not, write to
895 +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
896 +USA. */
897 +
898 +/* Any assembly language/system dependent hacks needed to setup
899 + * boot1.c so it will work as expected and cope with whatever platform
900 + * specific wierdness is needed for this architecture.
901 +
902 + * We override the default _dl_boot function, and replace it with a
903 + * bit of asm. Then call the real _dl_boot function, which is now
904 + * named _dl_boot2. */
905 +
906 +/* At program start-up, p0 contains a pointer to a
907 + elf32_fdpic_loadmap that describes how the executable was loaded
908 + into memory. p1 contains a pointer to the interpreter (our!)
909 + loadmap, if there is an interpreter, or 0 if we're being run as an
910 + executable. p2 holds a pointer to the interpreter's dynamic
911 + section, if there is an interpreter, or to the executable's dynamic
912 + section, otherwise. If the executable is not dynamic, gr18 is 0.
913 +
914 + We rely on the fact that the linker adds a pointer to the
915 + _GLOBAL_OFFSET_TABLE_ as the last ROFIXUP entry, and that
916 + __self_reloc returns the relocated pointer to us, so that we can
917 + use this value to initialize the PIC register. */
918 +
919 +
920 +/*
921 + * _dl_boot is the entry point for ldso.
922 + *
923 + * The kernel leaves the main apps args on the stack (positive offsets), and
924 + * communicates the load maps as follows
925 + *
926 + * - d1 is set to the exec_map_addr (struct elf32_fdpic_loadmap *), which is the
927 + * current state of the mapped application.
928 + *
929 + * - d2 is set to interp_map_addr (struct elf32_fdpic_loadmap *), which is use
930 + * by ldso to relocate itself.
931 + *
932 + * - d3 is dynamic_addr which as far as I can tell is the stack pointer.
933 + *
934 + * - a1 is set to zero and will later be initialised to ldso _dl_fini funcdesc
935 + */
936 +
937 +__asm__(
938 + " .text \n\t"
939 + " .global _start \n\t"
940 + " .type _start,@function \n\t"
941 + "_start:\n\t"
942 + /*
943 + * Jump to .Lcall storing the location .Lcall in a5
944 + */
945 + " call a5, .Lcall \n\t"
946 + ".Lcall: \n\t"
947 + /*
948 + * Reserve and Push inputs to stack.
949 + * 32 byte stack layout as follows
950 + * offset 0 exec_map_addr
951 + * 4 interp_map_addr
952 + * 8 dynamic_addr
953 + * 12 not used
954 + * 16 dl_main_funcdesc structure for _dl_boot
955 + * (12 bytes sizeof funcdesc_value)
956 + * 28 reserved
957 + * 32 start of &original stack
958 + */
959 + " pdec sp, 32(sp); reserve stack space \n\t"
960 + " move.4 0(sp), d1 ; exec_map_addr \n\t"
961 + " move.4 4(sp), d2 ; interp_map_addr \n\t"
962 + " move.4 8(sp), d3; dynamic_addr \n\t"
963 +
964 + /*
965 + * Load linker version of .Lcall in to d0
966 + */
967 + " moveai a3, #%hi(.Lcall) \n\t"
968 + " lea.1 d0, %lo(.Lcall)(a3) \n\t"
969 +
970 + /*
971 + * Determine the offset from loaded .Lcall and put it in d0.
972 + */
973 + " sub.4 d0, a5, d0 \n\t"
974 +
975 + /*
976 + * Load linker version of __ROFIXUP_LIST__ and __ROFIXUP_END__ in to d1
977 + * and d2.
978 + */
979 + " moveai a3, #%hi(__ROFIXUP_LIST__) \n\t"
980 + " lea.1 d1, %lo(__ROFIXUP_LIST__)(a3) \n\t"
981 + " moveai a3, #%hi(__ROFIXUP_END__) \n\t"
982 + " lea.1 d2, %lo(__ROFIXUP_END__)(a3) \n\t"
983 + /*
984 + * Use offset determined above to find the loaded versions.
985 + */
986 + " add.4 d1, d1, d0 \n\t"
987 + " add.4 d2, d2, d0 \n\t"
988 +
989 + /*
990 + * Load interp_map_addr into d0, if interp_map_addr is null use
991 + * exec_map_addr.
992 + */
993 + " move.4 d0, 4(sp) ; load interp_map_addr \n\t"
994 + " cmpi d0, #0 \n\t"
995 + " jmpne.f 1f \n\t"
996 + " move.4 d0, 0(sp) ; load exec_map_addr \n\t"
997 +
998 + /*
999 + * call __self_reloc(map, void ***p, void ***e)
1000 + * it returns the the GOT in d0.
1001 + */
1002 + "1: call a5, __self_reloc ; returns a0 in d0 \n\t"
1003 + " move.4 a0, d0 ; set GOT \n\t"
1004 + " move.4 a2, d0 ; save GOT \n\t"
1005 +
1006 + /*
1007 + * now setup to call
1008 + * _dl_start (Elf32_Addr dl_boot_got_pointer, (d0)
1009 + * struct elf32_fdpic_loadmap *dl_boot_progmap, (d1)
1010 + * struct elf32_fdpic_loadmap *dl_boot_ldsomap, (d2)
1011 + * Elf32_Dyn *dl_boot_ldso_dyn_pointer, (d3)
1012 + * struct funcdesc_value *dl_main_funcdesc, (d4)
1013 + * unsigned long args (d5)
1014 + *
1015 + * NOTE: for dl_main_funcdesc we reserved space on the stack for this
1016 + * structure.
1017 + */
1018 + " move.4 d1, 0(sp) ; d1 = exec_map_addr \n\t"
1019 + " move.4 d2, 4(sp) ; d2 = interp_map_addr \n\t"
1020 + " move.4 d3, 8(sp) ; d3 = dynamic_addr \n\t"
1021 + " lea.1 d4, 16(sp) ; d4 = &dl_main_funcdesc \n\t"
1022 + " lea.1 d5, 32(sp) ; d5 = original stack ptr (args)\n\t"
1023 + " call a5, _dl_start \n\t"
1024 +
1025 + /*
1026 + * Setup to call the main entry point, starting with passing our FINI
1027 + * ptr() to the user in a1 (remember we saved the got in a2)
1028 + */
1029 + " movei d15, #%got_funcdesc_lo(_dl_fini) \n\t"
1030 + " move.4 a1, (a2, d15) \n\t"
1031 +
1032 + /*
1033 + * restore the load map from the kernel.
1034 + */
1035 + " move.4 d1, 0(sp) ; restore exec_map_addr \n\t"
1036 + " move.4 d2, 4(sp) ; restore interp_map_addr \n\t"
1037 + " move.4 d3, 8(sp) ; restore dynamic_addr \n\t"
1038 +
1039 + /*
1040 + * _dl_start returned the main apps entry point in dl_main_funcdesc,
1041 + * load that information now.
1042 + */
1043 + " move.4 a5, 16(sp) ; a5 = dl_main_funcdesc.entry_point \n\t"
1044 + " move.4 a0, 20(sp) ; a0 = dl_main_funcdesc.got_value \n\t"
1045 + " lea.1 sp, 32(sp); restore original stack ptr (args) \n\t"
1046 + " calli a5, 0(a5) \n\t"
1047 + " bkpt -1; should never get here \n\t"
1048 + " .size _start, . - _start \n\t"
1049 +);
1050 +
1051 +#undef DL_START
1052 +#define DL_START(X) \
1053 +static void __attribute__ ((used)) \
1054 +_dl_start (Elf32_Addr dl_boot_got_pointer, \
1055 + struct elf32_fdpic_loadmap *dl_boot_progmap, \
1056 + struct elf32_fdpic_loadmap *dl_boot_ldsomap, \
1057 + Elf32_Dyn *dl_boot_ldso_dyn_pointer, \
1058 + struct funcdesc_value *dl_main_funcdesc, \
1059 + X)
1060 +
1061 +struct elf32_fdpic_loadmap;
1062 +
1063 +/*
1064 + * Get a pointer to the argv array. On many platforms this can be just
1065 + * the address if the first argument, on other platforms we need to
1066 + * do something a little more subtle here.
1067 + */
1068 +#define GET_ARGV(ARGVP, ARGS) ARGVP = (((unsigned long*) ARGS) + 1)
1069 +
1070 +/*
1071 + * Here is a macro to perform a relocation. This is only used when
1072 + * bootstrapping the dynamic loader. RELP is the relocation that we
1073 + * are performing, REL is the pointer to the address we are relocating.
1074 + * SYMBOL is the symbol involved in the relocation, and LOAD is the
1075 + * load address.
1076 + */
1077 +#define PERFORM_BOOTSTRAP_RELOC(RELP,REL,SYMBOL,LOAD,SYMTAB) \
1078 + switch(ELF32_R_TYPE((RELP)->r_info)){ \
1079 + case R_UBICOM32_32: \
1080 + *(REL) += (SYMBOL); \
1081 + break; \
1082 + case R_UBICOM32_FUNCDESC_VALUE: \
1083 + { \
1084 + struct funcdesc_value fv = { \
1085 + (void*)((SYMBOL) + *(REL)), \
1086 + (LOAD).got_value \
1087 + }; \
1088 + *(struct funcdesc_value volatile *)(REL) = fv; \
1089 + break; \
1090 + } \
1091 + default: \
1092 + _dl_exit(1); \
1093 + }
1094 +
1095 +/*
1096 + * Transfer control to the user's application, once the dynamic loader
1097 + * is done. We return the address of the function's entry point to
1098 + * _dl_boot, see boot1_arch.h.
1099 + */
1100 +#define START() do { \
1101 + struct elf_resolve *exec_mod = _dl_loaded_modules; \
1102 + dl_main_funcdesc->entry_point = _dl_elf_main; \
1103 + while (exec_mod->libtype != elf_executable) \
1104 + exec_mod = exec_mod->next; \
1105 + dl_main_funcdesc->got_value = exec_mod->loadaddr.got_value; \
1106 + return; \
1107 +} while (0)
1108 --- /dev/null
1109 +++ b/ldso/ldso/ubicom32/dl-syscalls.h
1110 @@ -0,0 +1,206 @@
1111 +/* Copyright (C) 2003, 2004 Red Hat, Inc.
1112 + Contributed by Alexandre Oliva <aoliva@redhat.com>
1113 +
1114 +This file is part of uClibc.
1115 +
1116 +uClibc is free software; you can redistribute it and/or modify it
1117 +under the terms of the GNU Lesser General Public License as
1118 +published by the Free Software Foundation; either version 2.1 of the
1119 +License, or (at your option) any later version.
1120 +
1121 +uClibc is distributed in the hope that it will be useful, but WITHOUT
1122 +ANY WARRANTY; without even the implied warranty of
1123 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1124 +Library General Public License for more details.
1125 +
1126 +You should have received a copy of the GNU Lesser General Public
1127 +License along with uClibc; see the file COPYING.LIB. If not, write to
1128 +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
1129 +USA. */
1130 +
1131 +/* We can't use the real errno in ldso, since it has not yet
1132 + * been dynamicly linked in yet. */
1133 +#include "sys/syscall.h"
1134 +extern int _dl_errno;
1135 +#undef __set_errno
1136 +#define __set_errno(X) {(_dl_errno) = (X);}
1137 +#include <sys/mman.h>
1138 +
1139 +/* The code below is extracted from libc/sysdeps/linux/frv/_mmap.c */
1140 +
1141 +#if defined(DYNAMIC_LOADER_IN_SIMULATOR) && DYNAMIC_LOADER_IN_SIMULATOR
1142 +#define __NR___syscall_mmap2 __NR_mmap2
1143 +static __inline__ _syscall6(__ptr_t, __syscall_mmap2, __ptr_t, addr,
1144 + size_t, len, int, prot, int, flags, int, fd, off_t, offset);
1145 +
1146 +/* Make sure we don't get another definition of _dl_mmap from the
1147 + machine-independent code. */
1148 +#undef __NR_mmap
1149 +#undef __NR_mmap2
1150 +
1151 +/* This is always 12, even on architectures where PAGE_SHIFT != 12. */
1152 +# ifndef MMAP2_PAGE_SHIFT
1153 +# define MMAP2_PAGE_SHIFT 12
1154 +# endif
1155 +
1156 +#include <bits/uClibc_page.h> /* for PAGE_SIZE */
1157 +static __always_inline void *_dl_memset(void*,int,size_t);
1158 +static __always_inline ssize_t _dl_pread(int fd, void *buf, size_t count, off_t offset);
1159 +
1160 +static __ptr_t
1161 +_dl_mmap(__ptr_t addr, size_t len, int prot, int flags, int fd, __off_t offset)
1162 +{
1163 + size_t plen = (len + PAGE_SIZE - 1) & -PAGE_SIZE;
1164 +
1165 +/* This is a hack to enable the dynamic loader to run within a
1166 + simulator that doesn't support mmap, with a number of very ugly
1167 + tricks. Also, it's not as useful as it sounds, since only dynamic
1168 + executables without DT_NEEDED dependencies can be run. AFAIK, they
1169 + can only be created with -pie. This trick suffices to enable the
1170 + dynamic loader to obtain a blank page that it maps early in the
1171 + bootstrap. */
1172 + if ((flags & MAP_FIXED) == 0)
1173 + {
1174 + void *_dl_mmap_base = 0;
1175 + __ptr_t *ret = 0;
1176 +
1177 + if (! _dl_mmap_base)
1178 + {
1179 + void *stack;
1180 + __asm__ ("mov sp, %0" : "=r" (stack));
1181 + _dl_mmap_base = (void *)(((long)stack + 2 * PAGE_SIZE) & -PAGE_SIZE);
1182 + retry:
1183 + if (((void **)_dl_mmap_base)[0] == _dl_mmap_base
1184 + && ((void **)_dl_mmap_base)[1023] == _dl_mmap_base
1185 + && (((void **)_dl_mmap_base)[177]
1186 + == ((void **)_dl_mmap_base)[771]))
1187 + {
1188 + while (((void**)_dl_mmap_base)[177])
1189 + {
1190 + _dl_mmap_base = ((void**)_dl_mmap_base)[177];
1191 + if (!(((void **)_dl_mmap_base)[0] == _dl_mmap_base
1192 + && ((void **)_dl_mmap_base)[1023] == _dl_mmap_base
1193 + && (((void **)_dl_mmap_base)[177]
1194 + == ((void**)_dl_mmap_base)[771])))
1195 + ((void(*)())0)();
1196 + }
1197 + }
1198 + else
1199 + {
1200 + int i;
1201 + for (i = 0; i < (int)PAGE_SIZE; i++)
1202 + if (*(char*)(_dl_mmap_base + i))
1203 + break;
1204 + if (i != PAGE_SIZE)
1205 + {
1206 + _dl_mmap_base = (void*)((long)_dl_mmap_base + PAGE_SIZE);
1207 + goto retry;
1208 + }
1209 + ((void**)_dl_mmap_base)[-1] =
1210 + ((void**)_dl_mmap_base)[0] =
1211 + ((void**)_dl_mmap_base)[1023] =
1212 + _dl_mmap_base;
1213 + }
1214 + }
1215 +
1216 + if (_dl_mmap_base)
1217 + {
1218 + if (!(((void **)_dl_mmap_base)[0] == _dl_mmap_base
1219 + && ((void **)_dl_mmap_base)[1023] == _dl_mmap_base
1220 + && (((void **)_dl_mmap_base)[177]
1221 + == ((void**)_dl_mmap_base)[771])))
1222 + ((void(*)())0)();
1223 + ret = (__ptr_t)((char*)_dl_mmap_base + PAGE_SIZE);
1224 + _dl_mmap_base =
1225 + ((void**)_dl_mmap_base)[177] =
1226 + ((void**)_dl_mmap_base)[771] =
1227 + (char*)_dl_mmap_base + plen + PAGE_SIZE;
1228 + ((void**)_dl_mmap_base)[0] =
1229 + ((void**)_dl_mmap_base)[1023] =
1230 + _dl_mmap_base;
1231 + }
1232 +
1233 + if ((flags & MAP_ANONYMOUS) != 0)
1234 + {
1235 + _dl_memset (ret, 0, plen);
1236 + return ret;
1237 + }
1238 +
1239 + flags |= MAP_FIXED;
1240 + addr = ret;
1241 + }
1242 + if (offset & ((1 << MMAP2_PAGE_SHIFT) - 1)) {
1243 +#if 0
1244 + __set_errno (EINVAL);
1245 +#endif
1246 + return MAP_FAILED;
1247 + }
1248 + if ((flags & MAP_FIXED) != 0)
1249 + {
1250 + if (_dl_pread(fd, addr, len, offset) != (ssize_t)len)
1251 + return (void*)MAP_FAILED;
1252 + if (plen != len)
1253 + _dl_memset (addr + len, 0, plen - len);
1254 + return addr;
1255 + }
1256 + return(__syscall_mmap2(addr, len, prot, flags, fd, (off_t) (offset >> MMAP2_PAGE_SHIFT)));
1257 +}
1258 +#endif
1259 +
1260 +#ifdef __NR_pread64
1261 +#ifdef DYNAMIC_LOADER_IN_SIMULATOR
1262 +#include <unistd.h>
1263 +
1264 +#define __NR___syscall_lseek __NR_lseek
1265 +static __always_inline unsigned long _dl_read(int fd, const void *buf, unsigned long count);
1266 +
1267 +static __always_inline _syscall3(__off_t, __syscall_lseek, int, fd, __off_t, offset,
1268 + int, whence);
1269 +static __always_inline ssize_t
1270 +_dl_pread(int fd, void *buf, size_t count, off_t offset)
1271 +{
1272 + __off_t orig = __syscall_lseek (fd, 0, SEEK_CUR);
1273 + ssize_t ret;
1274 +
1275 + if (orig == -1)
1276 + return -1;
1277 +
1278 + if (__syscall_lseek (fd, offset, SEEK_SET) != offset)
1279 + return -1;
1280 +
1281 + ret = _dl_read (fd, buf, count);
1282 +
1283 + if (__syscall_lseek (fd, orig, SEEK_SET) != orig)
1284 + ((void(*)())0)();
1285 +
1286 + return ret;
1287 +}
1288 +#else
1289 +#define __NR___syscall_pread __NR_pread64
1290 +static __always_inline _syscall5(ssize_t, __syscall_pread, int, fd, void *, buf,
1291 + size_t, count, off_t, offset_hi, off_t, offset_lo);
1292 +
1293 +static __always_inline ssize_t
1294 +_dl_pread(int fd, void *buf, size_t count, off_t offset)
1295 +{
1296 + return(__syscall_pread(fd,buf,count,__LONG_LONG_PAIR (offset >> 31, offset)));
1297 +}
1298 +#endif
1299 +#endif
1300 +
1301 +#ifdef __NR_sram_alloc
1302 +#define __NR__dl_sram_alloc __NR_sram_alloc
1303 +static __always_inline _syscall2(__ptr_t, _dl_sram_alloc,
1304 + size_t, len, unsigned long, flags);
1305 +#endif
1306 +
1307 +#ifdef __NR_sram_free
1308 +#define __NR__dl_sram_free __NR_sram_free
1309 +static __always_inline _syscall1(int, _dl_sram_free, __ptr_t, addr);
1310 +#endif
1311 +
1312 +#ifdef __NR_dma_memcpy
1313 +#define __NR__dl_dma_memcpy __NR_dma_memcpy
1314 +static __always_inline _syscall3(__ptr_t, _dl_dma_memcpy,
1315 + __ptr_t, dest, __ptr_t, src, size_t, len);
1316 +#endif
1317 --- /dev/null
1318 +++ b/ldso/ldso/ubicom32/dl-sysdep.h
1319 @@ -0,0 +1,243 @@
1320 + /* Copyright (C) 2003, 2004 Red Hat, Inc.
1321 + Contributed by Alexandre Oliva <aoliva@redhat.com>
1322 + Based on ../i386/dl-sysdep.h
1323 +
1324 +This file is part of uClibc.
1325 +
1326 +uClibc is free software; you can redistribute it and/or modify it
1327 +under the terms of the GNU Lesser General Public License as
1328 +published by the Free Software Foundation; either version 2.1 of the
1329 +License, or (at your option) any later version.
1330 +
1331 +uClibc is distributed in the hope that it will be useful, but WITHOUT
1332 +ANY WARRANTY; without even the implied warranty of
1333 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1334 +Library General Public License for more details.
1335 +
1336 +You should have received a copy of the GNU Lesser General Public
1337 +License along with uClibc; see the file COPYING.LIB. If not, write to
1338 +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
1339 +USA. */
1340 +
1341 +/*
1342 + * Various assembly language/system dependent hacks that are required
1343 + * so that we can minimize the amount of platform specific code.
1344 + */
1345 +
1346 +/*
1347 + * Define this if the system uses RELOCA.
1348 + */
1349 +#undef ELF_USES_RELOCA
1350 +
1351 +/* JMPREL relocs are inside the DT_RELA table. */
1352 +#define ELF_MACHINE_PLTREL_OVERLAP
1353 +
1354 +#define DL_NO_COPY_RELOCS
1355 +
1356 +#define HAVE_DL_INLINES_H
1357 +
1358 +/*
1359 + * Initialization sequence for a GOT. Copy the resolver function
1360 + * descriptor and the pointer to the elf_resolve/link_map data
1361 + * structure. Initialize the got_value in the module while at that.
1362 + */
1363 +#define INIT_GOT(GOT_BASE,MODULE) \
1364 +{ \
1365 + (MODULE)->loadaddr.got_value = (GOT_BASE); \
1366 + GOT_BASE[0] = ((unsigned long *)&_dl_linux_resolve)[0]; \
1367 + GOT_BASE[1] = ((unsigned long *)&_dl_linux_resolve)[1]; \
1368 + GOT_BASE[2] = (unsigned long) MODULE; \
1369 +}
1370 +
1371 +/* Here we define the magic numbers that this dynamic loader should accept */
1372 +#define MAGIC1 EM_UBICOM32
1373 +#undef MAGIC2
1374 +
1375 +/* Used for error messages */
1376 +#define ELF_TARGET "UBICOM32"
1377 +
1378 +struct elf_resolve;
1379 +
1380 +struct funcdesc_value
1381 +{
1382 + void *entry_point;
1383 + void *got_value;
1384 +/*int relocation; not sure if this required, but it does exist */
1385 +};
1386 +
1387 +extern int _dl_linux_resolve(void) __attribute__((__visibility__("hidden")));
1388 +extern struct funcdesc_value volatile *__attribute__((__visibility__("hidden")))
1389 + _dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry);
1390 +
1391 +/* 4KiB page alignment. Should perhaps be made dynamic using
1392 + getpagesize(), based on AT_PAGESZ from auxvt? */
1393 +#define PAGE_ALIGN 0xfffff000
1394 +#define ADDR_ALIGN 0xfff
1395 +#define OFFS_ALIGN 0x7ffff000
1396 +
1397 +struct funcdesc_ht;
1398 +
1399 +/*
1400 + * This asm does a quick relcation of string S (which is stored in the text
1401 + * section as thats all we can use
1402 + */
1403 +#undef SEND_EARLY_STDERR
1404 +#define SEND_EARLY_STDERR(S) \
1405 +do { \
1406 + static const char __attribute__((section(".text"))) __s[] = (S); \
1407 + const char *__p, *__scratch; \
1408 + __asm__ ( \
1409 + " call a3, 1f; \n\t" \
1410 + "1: movei %0, #%%got_lo(1b) \n\t" \
1411 + " move.4 %0, (%3, %0) \n\t" \
1412 + " sub.4 %1, a3, %0; \n\t" \
1413 + " add.4 %1, %1, %2; \n\t" \
1414 + : "=&d" (__scratch), "=&d" (__p) \
1415 + : "d" (__s), "a" (dl_boot_got_pointer) \
1416 + : "a3", "a4", "d15"); \
1417 + SEND_STDERR (__p); \
1418 + { int __t; \
1419 + for (__t = 0; __t < 0x100000; __t++) __asm__ __volatile__ (""); } \
1420 +} while (0)
1421 +
1422 +#define DL_LOADADDR_TYPE struct elf32_fdpic_loadaddr
1423 +
1424 +#define DL_RELOC_ADDR(LOADADDR, ADDR) \
1425 + ((ElfW(Addr))__reloc_pointer ((void*)(ADDR), (LOADADDR).map))
1426 +
1427 +#define DL_ADDR_TO_FUNC_PTR(ADDR, LOADADDR) \
1428 + ((void(*)(void)) _dl_funcdesc_for ((void*)(ADDR), (LOADADDR).got_value))
1429 +
1430 +#define _dl_stabilize_funcdesc(val) \
1431 + ({ __asm__ ("" : "+m" (*(val))); (val); })
1432 +
1433 +#define DL_CALL_FUNC_AT_ADDR(ADDR, LOADADDR, SIGNATURE, ...) \
1434 + ({ struct funcdesc_value fd = { (void*)(ADDR), (LOADADDR).got_value }; \
1435 + void (*pf)(void) = (void*) _dl_stabilize_funcdesc (&fd); \
1436 + (* SIGNATURE pf)(__VA_ARGS__); })
1437 +
1438 +#define DL_INIT_LOADADDR_BOOT(LOADADDR, BASEADDR) \
1439 + (__dl_init_loadaddr_map (&(LOADADDR), dl_boot_got_pointer, \
1440 + dl_boot_ldsomap ?: dl_boot_progmap))
1441 +
1442 +#define DL_INIT_LOADADDR_PROG(LOADADDR, BASEADDR) \
1443 + (__dl_init_loadaddr_map (&(LOADADDR), 0, dl_boot_progmap))
1444 +
1445 +#define DL_INIT_LOADADDR_EXTRA_DECLS \
1446 + int dl_init_loadaddr_load_count;
1447 +#define DL_INIT_LOADADDR(LOADADDR, BASEADDR, PHDR, PHDRCNT) \
1448 + (dl_init_loadaddr_load_count = \
1449 + __dl_init_loadaddr (&(LOADADDR), (PHDR), (PHDRCNT)))
1450 +#define DL_INIT_LOADADDR_HDR(LOADADDR, ADDR, PHDR) \
1451 + (__dl_init_loadaddr_hdr ((LOADADDR), (ADDR), (PHDR), \
1452 + dl_init_loadaddr_load_count))
1453 +#define DL_LOADADDR_UNMAP(LOADADDR, LEN) \
1454 + (__dl_loadaddr_unmap ((LOADADDR), (NULL)))
1455 +#define DL_LIB_UNMAP(LIB, LEN) \
1456 + (__dl_loadaddr_unmap ((LIB)->loadaddr, (LIB)->funcdesc_ht))
1457 +#define DL_LOADADDR_BASE(LOADADDR) \
1458 + ((LOADADDR).got_value)
1459 +
1460 +/* This is called from dladdr(), such that we map a function
1461 + descriptor's address to the function's entry point before trying to
1462 + find in which library it's defined. */
1463 +#define DL_LOOKUP_ADDRESS(ADDRESS) (_dl_lookup_address (ADDRESS))
1464 +
1465 +#define DL_ADDR_IN_LOADADDR(ADDR, TPNT, TFROM) \
1466 + (! (TFROM) && __dl_addr_in_loadaddr ((void*)(ADDR), (TPNT)->loadaddr))
1467 +
1468 +/*
1469 + * Compute the GOT address. On several platforms, we use assembly
1470 + * here. on FR-V FDPIC, there's no way to compute the GOT address,
1471 + * since the offset between text and data is not fixed, so we arrange
1472 + * for the assembly _dl_boot to pass this value as an argument to
1473 + * _dl_boot. */
1474 +#define DL_BOOT_COMPUTE_GOT(got) ((got) = dl_boot_got_pointer)
1475 +
1476 +#define DL_BOOT_COMPUTE_DYN(dpnt, got, load_addr) \
1477 + ((dpnt) = dl_boot_ldso_dyn_pointer)
1478 +
1479 +/* We only support loading FDPIC independently-relocatable shared
1480 + libraries. It probably wouldn't be too hard to support loading
1481 + shared libraries that require relocation by the same amount, but we
1482 + don't know that they exist or would be useful, and the dynamic
1483 + loader code could leak the whole-library map unless we keeping a
1484 + bit more state for DL_LOADADDR_UNMAP and DL_LIB_UNMAP, so let's
1485 + keep things simple for now. */
1486 +#define DL_CHECK_LIB_TYPE(epnt, piclib, _dl_progname, libname) \
1487 +do \
1488 +{ \
1489 + if (((epnt)->e_flags & EF_UBICOM32_FDPIC) && ! ((epnt)->e_flags & EF_UBICOM32_PIC)) \
1490 + (piclib) = 2; \
1491 + else \
1492 + { \
1493 + _dl_internal_error_number = LD_ERROR_NOTDYN; \
1494 + _dl_dprintf(2, "%s: '%s' is not an FDPIC shared library" \
1495 + "\n", (_dl_progname), (libname)); \
1496 + _dl_close(infile); \
1497 + return NULL; \
1498 + } \
1499 +\
1500 +} \
1501 +while (0)
1502 +
1503 +/* We want want to apply all relocations in the interpreter during
1504 + bootstrap. Because of this, we have to skip the interpreter
1505 + relocations in _dl_parse_relocation_information(), see
1506 + elfinterp.c. */
1507 +#define DL_SKIP_BOOTSTRAP_RELOC(SYMTAB, INDEX, STRTAB) 0
1508 +
1509 +#ifdef __NR_pread64
1510 +#define _DL_PREAD(FD, BUF, SIZE, OFFSET) \
1511 + (_dl_pread((FD), (BUF), (SIZE), (OFFSET)))
1512 +#endif
1513 +
1514 +/* We want to return to dlsym() a function descriptor if the symbol
1515 + turns out to be a function. */
1516 +#define DL_FIND_HASH_VALUE(TPNT, TYPE_CLASS, SYM) \
1517 + (((TYPE_CLASS) & ELF_RTYPE_CLASS_DLSYM) \
1518 + && ELF32_ST_TYPE((SYM)->st_info) == STT_FUNC \
1519 + ? _dl_funcdesc_for ((void *)DL_RELOC_ADDR ((TPNT)->loadaddr, (SYM)->st_value), \
1520 + (TPNT)->loadaddr.got_value) \
1521 + : DL_RELOC_ADDR ((TPNT)->loadaddr, (SYM)->st_value))
1522 +
1523 +#if 0 /* XXX TODO will look at enabling this if we decide to add support for OCM
1524 + * code/data */
1525 +
1526 +#define DL_IS_SPECIAL_SEGMENT(EPNT, PPNT) \
1527 + __dl_is_special_segment(EPNT, PPNT)
1528 +#define DL_MAP_SEGMENT(EPNT, PPNT, INFILE, FLAGS) \
1529 + __dl_map_segment (EPNT, PPNT, INFILE, FLAGS)
1530 +
1531 +#endif
1532 +
1533 +
1534 +#define DL_GET_READY_TO_RUN_EXTRA_PARMS \
1535 + , struct elf32_fdpic_loadmap *dl_boot_progmap, Elf32_Addr dl_boot_got_pointer
1536 +#define DL_GET_READY_TO_RUN_EXTRA_ARGS \
1537 + , dl_boot_progmap, dl_boot_got_pointer
1538 +
1539 +
1540 +#ifdef __USE_GNU
1541 +# include <link.h>
1542 +#else
1543 +# define __USE_GNU
1544 +# include <link.h>
1545 +# undef __USE_GNU
1546 +#endif
1547 +
1548 +#include <elf.h>
1549 +static __inline__ void
1550 +elf_machine_relative (DL_LOADADDR_TYPE load_off, const Elf32_Addr rel_addr,
1551 + Elf32_Word relative_count)
1552 +{
1553 +#if 0
1554 + Elf32_Rel * rpnt = (void *) rel_addr;
1555 + --rpnt;
1556 + do {
1557 + Elf32_Addr *const reloc_addr = (void *) (load_off + (++rpnt)->r_offset);
1558 +
1559 + *reloc_addr = DL_RELOC_ADDR (load_off, *reloc_addr);
1560 + } while (--relative_count);
1561 +#endif
1562 +}
1563 --- /dev/null
1564 +++ b/ldso/ldso/ubicom32/elfinterp.c
1565 @@ -0,0 +1,366 @@
1566 +/* Blackfin ELF shared library loader suppport
1567 + Copyright (C) 2003, 2004 Red Hat, Inc.
1568 + Contributed by Alexandre Oliva <aoliva@redhat.com>
1569 + Lots of code copied from ../i386/elfinterp.c, so:
1570 + Copyright (c) 1994-2000 Eric Youngdale, Peter MacDonald,
1571 + David Engel, Hongjiu Lu and Mitch D'Souza
1572 + Copyright (C) 2001-2002, Erik Andersen
1573 + All rights reserved.
1574 +
1575 +This file is part of uClibc.
1576 +
1577 +uClibc is free software; you can redistribute it and/or modify it
1578 +under the terms of the GNU Lesser General Public License as
1579 +published by the Free Software Foundation; either version 2.1 of the
1580 +License, or (at your option) any later version.
1581 +
1582 +uClibc is distributed in the hope that it will be useful, but WITHOUT
1583 +ANY WARRANTY; without even the implied warranty of
1584 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1585 +Library General Public License for more details.
1586 +
1587 +You should have received a copy of the GNU Lesser General Public
1588 +License along with uClibc; see the file COPYING.LIB. If not, write to
1589 +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
1590 +USA. */
1591 +
1592 +#include <sys/cdefs.h> /* __attribute_used__ */
1593 +
1594 +/* Program to load an ELF binary on a linux system, and run it.
1595 + References to symbols in sharable libraries can be resolved by either
1596 + an ELF sharable library or a linux style of shared library. */
1597 +
1598 +/* Disclaimer: I have never seen any AT&T source code for SVr4, nor have
1599 + I ever taken any courses on internals. This program was developed using
1600 + information available through the book "UNIX SYSTEM V RELEASE 4,
1601 + Programmers guide: Ansi C and Programming Support Tools", which did
1602 + a more than adequate job of explaining everything required to get this
1603 + working. */
1604 +extern int _dl_ubicom32_resolve_pending(void) __attribute__((__visibility__("hidden")));
1605 +
1606 +struct funcdesc_value volatile *__attribute__((__visibility__("hidden")))
1607 +_dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry)
1608 +{
1609 + int reloc_type;
1610 + ELF_RELOC *this_reloc;
1611 + char *strtab;
1612 + ElfW(Sym) *symtab;
1613 + int symtab_index;
1614 + char *rel_addr;
1615 + struct elf_resolve *new_tpnt;
1616 + char *new_addr;
1617 + struct funcdesc_value funcval;
1618 + struct funcdesc_value volatile *got_entry;
1619 + char *symname;
1620 +
1621 + rel_addr = (char *)tpnt->dynamic_info[DT_JMPREL];
1622 +
1623 + this_reloc = (ELF_RELOC *)(intptr_t)(rel_addr + reloc_entry);
1624 + reloc_type = ELF_R_TYPE(this_reloc->r_info);
1625 + symtab_index = ELF_R_SYM(this_reloc->r_info);
1626 +
1627 + symtab = (Elf32_Sym *) tpnt->dynamic_info[DT_SYMTAB];
1628 + strtab = (char *) tpnt->dynamic_info[DT_STRTAB];
1629 + symname= strtab + symtab[symtab_index].st_name;
1630 +
1631 + if (reloc_type != R_UBICOM32_FUNCDESC_VALUE) {
1632 + _dl_dprintf(2, "%s: Incorrect relocation type in jump relocations\n",
1633 + _dl_progname);
1634 + _dl_exit(1);
1635 + }
1636 +
1637 + /* Address of GOT entry fix up */
1638 + got_entry = (struct funcdesc_value *) DL_RELOC_ADDR(tpnt->loadaddr, this_reloc->r_offset);
1639 +
1640 + /* Get the address to be used to fill in the GOT entry. */
1641 + new_addr = _dl_lookup_hash(symname, tpnt->symbol_scope, NULL, 0, &new_tpnt);
1642 + if (!new_addr) {
1643 + new_addr = _dl_lookup_hash(symname, NULL, NULL, 0, &new_tpnt);
1644 + if (!new_addr) {
1645 + _dl_dprintf(2, "%s: can't resolve symbol '%s'\n",
1646 + _dl_progname, symname);
1647 + _dl_exit(1);
1648 + }
1649 + }
1650 +
1651 + funcval.entry_point = new_addr;
1652 + funcval.got_value = new_tpnt->loadaddr.got_value;
1653 +
1654 +#if defined (__SUPPORT_LD_DEBUG__)
1655 + if (_dl_debug_bindings) {
1656 + _dl_dprintf(_dl_debug_file, "\nresolve function: %s", symname);
1657 + if (_dl_debug_detail)
1658 + _dl_dprintf(_dl_debug_file,
1659 + "\n\tpatched (%x,%x) ==> (%x,%x) @ %x\n",
1660 + got_entry->entry_point, got_entry->got_value,
1661 + funcval.entry_point, funcval.got_value,
1662 + got_entry);
1663 + }
1664 + if (1 || !_dl_debug_nofixups) {
1665 + got_entry->entry_point = ((unsigned long *)&_dl_ubicom32_resolve_pending)[0];
1666 + got_entry->got_value = funcval.got_value;
1667 + got_entry->entry_point = funcval.entry_point;
1668 + }
1669 +#else
1670 + /*
1671 + * initially set the entry point to resolve pending before starting
1672 + * the update. This has the effect of putting all other requests in a
1673 + * holding pattern until the resolution is completed.
1674 + */
1675 + got_entry->entry_point = ((unsigned long *)&_dl_ubicom32_resolve_pending)[0];
1676 + got_entry->got_value = funcval.got_value;
1677 + got_entry->entry_point = funcval.entry_point;
1678 +#endif
1679 +
1680 + return got_entry;
1681 +}
1682 +
1683 +static int
1684 +_dl_parse(struct elf_resolve *tpnt, struct dyn_elf *scope,
1685 + unsigned long rel_addr, unsigned long rel_size,
1686 + int (*reloc_fnc) (struct elf_resolve *tpnt, struct dyn_elf *scope,
1687 + ELF_RELOC *rpnt, ElfW(Sym) *symtab, char *strtab))
1688 +{
1689 + unsigned int i;
1690 + char *strtab;
1691 + ElfW(Sym) *symtab;
1692 + ELF_RELOC *rpnt;
1693 + int symtab_index;
1694 +
1695 + /* Now parse the relocation information */
1696 + rpnt = (ELF_RELOC *) rel_addr;
1697 + rel_size = rel_size / sizeof(ELF_RELOC);
1698 +
1699 + symtab = (ElfW(Sym) *) tpnt->dynamic_info[DT_SYMTAB];
1700 + strtab = (char *) tpnt->dynamic_info[DT_STRTAB];
1701 +
1702 + for (i = 0; i < rel_size; i++, rpnt++) {
1703 + int res;
1704 +
1705 + symtab_index = ELF_R_SYM(rpnt->r_info);
1706 + debug_sym(symtab,strtab,symtab_index);
1707 + debug_reloc(symtab,strtab,rpnt);
1708 +
1709 + res = reloc_fnc (tpnt, scope, rpnt, symtab, strtab);
1710 +
1711 + if (res==0) continue;
1712 +
1713 + _dl_dprintf(2, "\n%s: ",_dl_progname);
1714 +
1715 + if (symtab_index)
1716 + _dl_dprintf(2, "symbol '%s': ", strtab + symtab[symtab_index].st_name);
1717 +
1718 + if (res <0) {
1719 + int reloc_type = ELF_R_TYPE(rpnt->r_info);
1720 +#if defined (__SUPPORT_LD_DEBUG__)
1721 + _dl_dprintf(2, "can't handle reloc type %s\n ", _dl_reltypes(reloc_type));
1722 +#else
1723 + _dl_dprintf(2, "can't handle reloc type %x\n", reloc_type);
1724 +#endif
1725 + _dl_exit(-res);
1726 + } else if (res >0) {
1727 + _dl_dprintf(2, "can't resolve symbol\n");
1728 + return res;
1729 + }
1730 + }
1731 + return 0;
1732 +}
1733 +
1734 +static int
1735 +_dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope,
1736 + ELF_RELOC *rpnt, ElfW(Sym) *symtab, char *strtab)
1737 +{
1738 + int reloc_type;
1739 + int symtab_index;
1740 + char *symname;
1741 + unsigned long reloc_value = 0, *reloc_addr;
1742 + struct { unsigned long v; } __attribute__((__packed__))
1743 + *reloc_addr_packed;
1744 + unsigned long symbol_addr;
1745 + struct elf_resolve *symbol_tpnt;
1746 + struct funcdesc_value funcval;
1747 +#if defined (__SUPPORT_LD_DEBUG__)
1748 + unsigned long old_val;
1749 +#endif
1750 +
1751 + reloc_addr = (unsigned long *) DL_RELOC_ADDR(tpnt->loadaddr, rpnt->r_offset);
1752 + __asm__ ("" : "=r" (reloc_addr_packed) : "0" (reloc_addr));
1753 + reloc_type = ELF_R_TYPE(rpnt->r_info);
1754 + symtab_index = ELF_R_SYM(rpnt->r_info);
1755 + symbol_addr = 0;
1756 + symname = strtab + symtab[symtab_index].st_name;
1757 +
1758 + if (ELF_ST_BIND (symtab[symtab_index].st_info) == STB_LOCAL) {
1759 + symbol_addr = (unsigned long) DL_RELOC_ADDR(tpnt->loadaddr, symtab[symtab_index].st_value);
1760 + symbol_tpnt = tpnt;
1761 + } else {
1762 +
1763 + symbol_addr = (unsigned long)
1764 + _dl_lookup_hash(symname, scope, NULL, 0, &symbol_tpnt);
1765 +
1766 + /*
1767 + * We want to allow undefined references to weak symbols - this might
1768 + * have been intentional. We should not be linking local symbols
1769 + * here, so all bases should be covered.
1770 + */
1771 +
1772 + if (!symbol_addr && ELF_ST_BIND(symtab[symtab_index].st_info) != STB_WEAK) {
1773 + _dl_dprintf (2, "%s: can't resolve symbol '%s'\n",
1774 + _dl_progname, strtab + symtab[symtab_index].st_name);
1775 + _dl_exit (1);
1776 + }
1777 + }
1778 +
1779 +#if defined (__SUPPORT_LD_DEBUG__)
1780 + if (_dl_debug_reloc && _dl_debug_detail)
1781 + {
1782 + if ((long)reloc_addr_packed & 3)
1783 + old_val = reloc_addr_packed->v;
1784 + else
1785 + old_val = *reloc_addr;
1786 + }
1787 + else
1788 + old_val = 0;
1789 +#endif
1790 + switch (reloc_type) {
1791 + case R_UBICOM32_NONE:
1792 + break;
1793 + case R_UBICOM32_32:
1794 + if ((long)reloc_addr_packed & 3)
1795 + reloc_value = reloc_addr_packed->v += symbol_addr;
1796 + else
1797 + reloc_value = *reloc_addr += symbol_addr;
1798 + break;
1799 + case R_UBICOM32_FUNCDESC_VALUE:
1800 + funcval.entry_point = (void*)symbol_addr;
1801 + /* The addend of FUNCDESC_VALUE
1802 + relocations referencing global
1803 + symbols must be ignored, because it
1804 + may hold the address of a lazy PLT
1805 + entry. */
1806 + if (ELF_ST_BIND(symtab[symtab_index].st_info) == STB_LOCAL)
1807 + funcval.entry_point += *reloc_addr;
1808 + reloc_value = (unsigned long)funcval.entry_point;
1809 + if (symbol_addr)
1810 + funcval.got_value
1811 + = symbol_tpnt->loadaddr.got_value;
1812 + else
1813 + funcval.got_value = 0;
1814 +
1815 +/// XXX this is my best guess as to what I should be doing, but I'm
1816 +/// putting a break-point here so I can inspect the first time this is
1817 +/// used.
1818 + __asm__ (
1819 + " move.4 4(%0), 4(%1) \n\t"
1820 + " move.4 0(%0), 0(%1) \n\t" /* Must to entry_point last */
1821 + :
1822 + : "a" (reloc_addr), "a" (&funcval)
1823 + : "memory" );
1824 + break;
1825 + case R_UBICOM32_FUNCDESC:
1826 + if ((long)reloc_addr_packed & 3)
1827 + reloc_value = reloc_addr_packed->v;
1828 + else
1829 + reloc_value = *reloc_addr;
1830 + if (symbol_addr)
1831 + reloc_value = (unsigned long)_dl_funcdesc_for
1832 + ((char *)symbol_addr + reloc_value,
1833 + symbol_tpnt->loadaddr.got_value);
1834 + else
1835 + reloc_value = 0;
1836 + if ((long)reloc_addr_packed & 3)
1837 + reloc_addr_packed->v = reloc_value;
1838 + else
1839 + *reloc_addr = reloc_value;
1840 + break;
1841 + default:
1842 + return -1;
1843 + }
1844 +#if defined (__SUPPORT_LD_DEBUG__)
1845 + if (_dl_debug_reloc && _dl_debug_detail) {
1846 + _dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x", old_val, reloc_value, reloc_addr);
1847 + switch (reloc_type) {
1848 + case R_UBICOM32_FUNCDESC_VALUE:
1849 + _dl_dprintf(_dl_debug_file, " got %x", ((struct funcdesc_value *)reloc_value)->got_value);
1850 + break;
1851 + case R_UBICOM32_FUNCDESC:
1852 + if (! reloc_value)
1853 + break;
1854 + _dl_dprintf(_dl_debug_file, " funcdesc (%x,%x)",
1855 + ((struct funcdesc_value *)reloc_value)->entry_point,
1856 + ((struct funcdesc_value *)reloc_value)->got_value);
1857 + break;
1858 + }
1859 + }
1860 +#endif
1861 +
1862 + return 0;
1863 +}
1864 +
1865 +static int
1866 +_dl_do_lazy_reloc (struct elf_resolve *tpnt,
1867 + struct dyn_elf *scope __attribute__((unused)),
1868 + ELF_RELOC *rpnt, ElfW(Sym) *symtab __attribute__((unused)),
1869 + char *strtab __attribute__((unused)))
1870 +{
1871 + int reloc_type;
1872 + struct funcdesc_value volatile *reloc_addr;
1873 + struct funcdesc_value funcval;
1874 +#if defined (__SUPPORT_LD_DEBUG__)
1875 + unsigned long old_val;
1876 +#endif
1877 +
1878 + reloc_addr = (struct funcdesc_value *) DL_RELOC_ADDR(tpnt->loadaddr, rpnt->r_offset);
1879 + reloc_type = ELF_R_TYPE(rpnt->r_info);
1880 +
1881 +#if defined (__SUPPORT_LD_DEBUG__)
1882 + old_val = (unsigned long)reloc_addr->entry_point;
1883 +#endif
1884 + switch (reloc_type) {
1885 + case R_UBICOM32_NONE:
1886 + break;
1887 + case R_UBICOM32_FUNCDESC_VALUE:
1888 + funcval = *reloc_addr;
1889 + funcval.entry_point = (void*)DL_RELOC_ADDR(tpnt->loadaddr, funcval.entry_point);
1890 + funcval.got_value = tpnt->loadaddr.got_value;
1891 + *reloc_addr = funcval;
1892 + break;
1893 + default:
1894 + return -1;
1895 + }
1896 +#if defined (__SUPPORT_LD_DEBUG__)
1897 + if (_dl_debug_reloc && _dl_debug_detail)
1898 + _dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x", old_val, reloc_addr->entry_point, reloc_addr);
1899 +#endif
1900 + return 0;
1901 +
1902 +}
1903 +
1904 +void
1905 +_dl_parse_lazy_relocation_information
1906 +(struct dyn_elf *rpnt, unsigned long rel_addr, unsigned long rel_size)
1907 +{
1908 + _dl_parse(rpnt->dyn, NULL, rel_addr, rel_size, _dl_do_lazy_reloc);
1909 +}
1910 +
1911 +int
1912 +_dl_parse_relocation_information
1913 +(struct dyn_elf *rpnt, unsigned long rel_addr, unsigned long rel_size)
1914 +{
1915 + return _dl_parse(rpnt->dyn, rpnt->dyn->symbol_scope, rel_addr, rel_size, _dl_do_reloc);
1916 +}
1917 +
1918 +#if 0
1919 +/* We don't have copy relocs. */
1920 +int
1921 +_dl_parse_copy_information
1922 +(struct dyn_elf *rpnt __attribute__((unused)),
1923 + unsigned long rel_addr __attribute__((unused)),
1924 + unsigned long rel_size __attribute__((unused)))
1925 +{
1926 + return 0;
1927 +}
1928 +#endif
1929 +#ifndef IS_IN_libdl
1930 +# include "../../libc/sysdeps/linux/ubicom32/crtreloc.c"
1931 +#endif
1932 --- /dev/null
1933 +++ b/ldso/ldso/ubicom32/resolve.S
1934 @@ -0,0 +1,161 @@
1935 + /* Copyright (C) 2003 Red Hat, Inc.
1936 + Contributed by Alexandre Oliva <aoliva@redhat.com>
1937 +
1938 + Copyright (C) 2009 Ubicom Inc.
1939 + Ported to Ubicom32 by Ubicom Inc.
1940 +
1941 +This file is part of uClibc.
1942 +
1943 +uClibc is free software; you can redistribute it and/or modify it
1944 +under the terms of the GNU Lesser General Public License as
1945 +published by the Free Software Foundation; either version 2.1 of the
1946 +License, or (at your option) any later version.
1947 +
1948 +uClibc is distributed in the hope that it will be useful, but WITHOUT
1949 +ANY WARRANTY; without even the implied warranty of
1950 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1951 +Library General Public License for more details.
1952 +
1953 +You should have received a copy of the GNU Lesser General Public
1954 +License along with uClibc; see the file COPYING.LIB. If not, write to
1955 +the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
1956 +USA. */
1957 +
1958 +
1959 +/*
1960 + * The function below is tail-called by resolver stubs when a lazily-bound *
1961 + * function is called. It must preserve all registers that could * be used to
1962 + * pass arguments to the actual function.
1963 + *
1964 + * On entry to the function d0-d13 contain parameters to the actual function of
1965 + * interest
1966 + *
1967 + * a5 contains the return address
1968 + * a0 is pointing to the GOT table for the original function
1969 + * (a0) _dl_linux_resolve
1970 + * 4(a0) GOT for _dl_linux_resolve
1971 + * 8(a0) is pointer to "structure elf_resolve" of the module where the call
1972 + * originated from
1973 + *
1974 + * a3 is pointing to the function descriptor in the GOT table, and 8(a3) the
1975 + * resolver lookup information.
1976 + *
1977 + * _dl_linux_resolve calls _dl_linux_resolver passing it pointer to
1978 + * struct elf_resolve and the relocation entry.
1979 + *
1980 + * _dl_linux_resolver() figures out where the jump symbol is _really_ supposed
1981 + * to have jumped to and returns that to us. Once we have that, we prepare to
1982 + * tail-call the actual function, clean up after ourselves, restoring the
1983 + * original arguments, then jump to the fixed up address.
1984 + */
1985 +
1986 +#if 0
1987 + /*
1988 + * Here is what the linker will use for the PLT.
1989 + */
1990 +sample_PLT_functionX: /* (at entry a0 contains GOT for this library) */
1991 + movei d15, # -%lo(got_funcdescX) ; load offset for GOT
1992 + lea.4 a3, (a0, d15) ; a4 is now the function descriptor
1993 + move.4 a4, 0(a3) ; get entry_point
1994 + move.4 a0, 4(a3) ; set new GOT
1995 +
1996 + /*
1997 + * jump to resovled function OR PLT_trampoline Nat had some code here
1998 + * that uses the stack instead of a3 to reduces hazards.
1999 + */
2000 + calli a4, 0(a4)
2001 +
2002 +
2003 +sample_PLT_trampoline:
2004 + /*
2005 + * find the old got by undoing what was done above. An alternative
2006 + * could have been to ‘save’ the old got in say d14 but that would add 1
2007 + * instruction to every PLT and there is only 1 PLT trampoline per library.
2008 + */
2009 + ret (a0) ; jump to _dl_linux_resolve
2010 +#endif
2011 +
2012 + .text
2013 + .p2align 4
2014 +
2015 + .hidden _dl_linux_resolve
2016 + .global _dl_linux_resolve
2017 + .type _dl_linux_resolve,@function
2018 +_dl_linux_resolve:
2019 + /* Preserve arguments and return address */
2020 + move.4 -4(sp)++, d0
2021 + move.4 -4(sp)++, d1
2022 + move.4 -4(sp)++, d2
2023 + move.4 -4(sp)++, d3
2024 + move.4 -4(sp)++, d4
2025 + move.4 -4(sp)++, d5
2026 + move.4 -4(sp)++, d6
2027 + move.4 -4(sp)++, d7
2028 + move.4 -4(sp)++, d8
2029 + move.4 -4(sp)++, d9
2030 + move.4 -4(sp)++, d10
2031 + move.4 -4(sp)++, d11
2032 + move.4 -4(sp)++, d12
2033 + move.4 -4(sp)++, d13
2034 + move.4 -4(sp)++, a5
2035 +
2036 + /* Prepare to call _dl_linux_resolver. */
2037 + move.4 d0, 8(a0) ; reference to elf_resolve
2038 + /* Not aligned for space reasons. */
2039 + move.4 d1, mac_hi ; reference to GOT table entry which
2040 + ; contains the relocation information.
2041 +
2042 + move.4 a0, 4(a0) ; switch to GOT for _dl_linux_resolve
2043 + call a5, _dl_linux_resolver;
2044 +
2045 + /* Move aside return value that contains the FUNCDESC_VALUE. */
2046 + ;P3 = R0;
2047 + move.4 a3, d0;
2048 +
2049 + /* Restore arguments. */
2050 + move.4 a5, (sp)4++
2051 + move.4 d13, (sp)4++
2052 + move.4 d12, (sp)4++
2053 + move.4 d11, (sp)4++
2054 + move.4 d10, (sp)4++
2055 + move.4 d9, (sp)4++
2056 + move.4 d8, (sp)4++
2057 + move.4 d7, (sp)4++
2058 + move.4 d6, (sp)4++
2059 + move.4 d5, (sp)4++
2060 + move.4 d4, (sp)4++
2061 + move.4 d3, (sp)4++
2062 + move.4 d2, (sp)4++
2063 + move.4 d1, (sp)4++
2064 + move.4 d0, (sp)4++
2065 +
2066 + /* Now jump to the actual function. */
2067 + /* a3 contains func_desc resolution */
2068 + move.4 a4, 0(a3) ; address of function X
2069 + move.4 a0, 4(a3) ; switch to GOT for function X
2070 + calli a4, 0(a4) ; call through a4, a5 remains
2071 +
2072 + .size _dl_linux_resolve, . - _dl_linux_resolve
2073 +
2074 + .hidden _dl_ubicom32_resolve_pending
2075 + .global _dl_ubicom32_resolve_pending
2076 + .type _dl_ubicom32_resolve_pending,@function
2077 +
2078 +_dl_ubicom32_resolve_pending:
2079 + /*
2080 + * A special function that is used to ensure thread saftly when the fd
2081 + * for a particular resolution is being updated.
2082 + *
2083 + * At entry, a3 must point to the FD. While the FD is being updated the
2084 + * entry_point will continue to point to _dl_ubicom32_resolve_pending so
2085 + * we will effectively spin until the resolver update is complete.
2086 + */
2087 +
2088 + move.4 a4, 0(a3) ; get entry_point
2089 + move.4 a0, 4(a3) ; set new GOT
2090 +
2091 + /*
2092 + * jump to resovled function or back to _dl_ubicom32_resolve_pending.
2093 + */
2094 + calli a4, 0(a4)
2095 + .size _dl_ubicom32_resolve_pending, . - _dl_ubicom32_resolve_pending
2096 --- a/libc/misc/Makefile.in
2097 +++ b/libc/misc/Makefile.in
2098 @@ -12,7 +12,9 @@ include $(top_srcdir)libc/misc/assert/Ma
2099 include $(top_srcdir)libc/misc/ctype/Makefile.in
2100 include $(top_srcdir)libc/misc/dirent/Makefile.in
2101 include $(top_srcdir)libc/misc/error/Makefile.in
2102 +ifneq ($(ARCH_HAS_NO_LDSO),y)
2103 include $(top_srcdir)libc/misc/elf/Makefile.in
2104 +endif
2105 include $(top_srcdir)libc/misc/file/Makefile.in
2106 include $(top_srcdir)libc/misc/fnmatch/Makefile.in
2107 include $(top_srcdir)libc/misc/ftw/Makefile.in
2108 --- a/libc/misc/elf/dl-iterate-phdr.c
2109 +++ b/libc/misc/elf/dl-iterate-phdr.c
2110 @@ -14,7 +14,7 @@
2111
2112 #include <link.h>
2113 #include <ldso.h>
2114 -
2115 +#include <memory.h>
2116 /* we want this in libc but nowhere else */
2117 #ifdef __USE_GNU
2118
2119 --- a/libc/stdlib/malloc/malloc.c
2120 +++ b/libc/stdlib/malloc/malloc.c
2121 @@ -23,7 +23,7 @@
2122
2123 /* The malloc heap. We provide a bit of initial static space so that
2124 programs can do a little mallocing without mmaping in more space. */
2125 -HEAP_DECLARE_STATIC_FREE_AREA (initial_fa, 256);
2126 +HEAP_DECLARE_STATIC_FREE_AREA (initial_fa, 32768);
2127 struct heap_free_area *__malloc_heap = HEAP_INIT_WITH_FA (initial_fa);
2128 #ifdef HEAP_USE_LOCKING
2129 malloc_mutex_t __malloc_heap_lock = PTHREAD_MUTEX_INITIALIZER;
2130 --- /dev/null
2131 +++ b/libc/string/ubicom32/Makefile
2132 @@ -0,0 +1,13 @@
2133 +# Makefile for uClibc
2134 +#
2135 +# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
2136 +#
2137 +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
2138 +#
2139 +
2140 +top_srcdir:=../../../
2141 +top_builddir:=../../../
2142 +all: objs
2143 +include $(top_builddir)Rules.mak
2144 +include ../Makefile.in
2145 +include $(top_srcdir)Makerules
2146 --- /dev/null
2147 +++ b/libc/string/ubicom32/memcpy.c
2148 @@ -0,0 +1,152 @@
2149 +/* Copy memory to memory until the specified number of bytes
2150 + has been copied. Overlap is NOT handled correctly.
2151 + Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc.
2152 + This file is part of the GNU C Library.
2153 + Contributed by Torbjorn Granlund (tege@sics.se).
2154 +
2155 + The GNU C Library is free software; you can redistribute it and/or
2156 + modify it under the terms of the GNU Lesser General Public
2157 + License as published by the Free Software Foundation; either
2158 + version 2.1 of the License, or (at your option) any later version.
2159 +
2160 + The GNU C Library is distributed in the hope that it will be useful,
2161 + but WITHOUT ANY WARRANTY; without even the implied warranty of
2162 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2163 + Lesser General Public License for more details.
2164 +
2165 + You should have received a copy of the GNU Lesser General Public
2166 + License along with the GNU C Library; if not, write to the Free
2167 + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
2168 + 02111-1307 USA. */
2169 +
2170 +#include <string.h>
2171 +
2172 +typedef unsigned long addr_t;
2173 +
2174 +libc_hidden_proto(memcpy)
2175 +
2176 +void *memcpy (void *dest, const void *src, size_t n)
2177 +{
2178 + void *dest_ret = dest;
2179 + void *aligned_start;
2180 +
2181 + if (likely((((addr_t)dest ^ (addr_t)src) & 3) == 0) && likely(n > 6)) {
2182 + size_t m;
2183 + n -= (4 - (addr_t)dest) & 0x03;
2184 + m = n >> 2;
2185 + __asm__ volatile (
2186 + " call %4, 99f \n\t" // load %4 with address of 99
2187 + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
2188 + " add.4 %4, %4, d15 \n\t" // add difference
2189 +
2190 + " sub.4 d15, #0, %2 \n\t" // set up for jump table
2191 + " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
2192 + " lea.4 %4, (%4,d15) \n\t"
2193 +
2194 + " bfextu d15, %0, #2 \n\t" // d15 = (dest & 3)
2195 + " jmpne.w.f 100f \n\t"
2196 + " calli %4, 0(%4) \n\t" // 4-byte alignment
2197 +
2198 + "100: cmpi d15, #2 \n\t"
2199 + " jmpne.s.f 101f \n\t"
2200 + " move.2 (%0)2++, (%1)2++ \n\t"
2201 + " calli %4, 0(%4) \n\t" // 2-byte alignment
2202 +
2203 + "101: move.1 (%0)1++, (%1)1++ \n\t"
2204 + " jmpgt.s.f 102f \n\t" // 3-byte alignment
2205 + " move.2 (%0)2++, (%1)2++ \n\t" // 1-byte alignment
2206 + "102: calli %4, 0(%4) \n\t"
2207 +
2208 + "200: cmpi %3, #2 \n\t"
2209 + " jmplt.s.f 201f \n\t"
2210 + " move.2 (%0)2++, (%1)2++ \n\t"
2211 + " jmpeq.s.t 2f \n\t"
2212 + "201: move.1 (%0)1++, (%1)1++ \n\t"
2213 + " jmpt.w.t 2f \n\t"
2214 +
2215 + "1: .rept 25 \n\t"
2216 + " movea (%0)4++, (%1)4++ \n\t"
2217 + " .endr \n\t"
2218 + " .rept 7 \n\t"
2219 + " move.4 (%0)4++, (%1)4++ \n\t"
2220 + " .endr \n\t"
2221 + " add.4 %2, #-32, %2 \n\t"
2222 + " jmpgt.w.f 1b \n\t"
2223 +
2224 + " and.4 %3, #3, %3 \n\t" // check n
2225 + " jmpne.w.f 200b \n\t"
2226 + "2: \n\t"
2227 + : "+a"(dest), "+a"(src), "+d"(m), "+d"(n), "=a"(aligned_start)
2228 + :
2229 + : "d15", "memory", "cc"
2230 + );
2231 +
2232 + return dest_ret;
2233 + }
2234 +
2235 + if (likely((((addr_t)dest ^ (addr_t)src) & 1) == 0) && likely(n > 2)) {
2236 + size_t m;
2237 + n -= (addr_t)dest & 0x01;
2238 + m = n >> 1;
2239 + __asm__ volatile (
2240 + " call %4, 99f \n\t" // load %4 with address of 99
2241 + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
2242 + " add.4 %4, %4, d15 \n\t" // add difference
2243 +
2244 + " sub.4 d15, #0, %2 \n\t" // set up for jump table
2245 + " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
2246 + " lea.4 %4, (%4,d15) \n\t"
2247 +
2248 + " btst %0, #0 \n\t" // check bit 0
2249 + " jmpne.w.f 100f \n\t"
2250 + " calli %4, 0(%4) \n\t" // 4-byte alignment
2251 +
2252 + "100: move.1 (%0)1++, (%1)1++ \n\t"
2253 + " calli %4, 0(%4) \n\t"
2254 +
2255 + "200: move.1 (%0)1++, (%1)1++ \n\t"
2256 + " jmpt.w.t 2f \n\t"
2257 +
2258 + "1: .rept 32 \n\t"
2259 + " move.2 (%0)2++, (%1)2++ \n\t"
2260 + " .endr \n\t"
2261 + " add.4 %2, #-32, %2 \n\t"
2262 + " jmpgt.w.f 1b \n\t"
2263 +
2264 + " and.4 %3, #1, %3 \n\t" // check n
2265 + " jmpne.w.f 200b \n\t"
2266 + "2: \n\t"
2267 +
2268 + : "+a"(dest), "+a"(src), "+d"(m), "+d"(n), "=a"(aligned_start)
2269 + :
2270 + : "d15", "memory", "cc"
2271 + );
2272 + return dest_ret;
2273 + }
2274 +
2275 + __asm__ volatile (
2276 + " call %3, 99f \n\t" // load %3 with address of 99
2277 + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
2278 + " add.4 %3, %3, d15 \n\t" // add difference
2279 +
2280 + " sub.4 d15, #0, %2 \n\t"
2281 + " jmpeq.w.f 2f \n\t"
2282 + " and.4 d15, #(16-1), d15 \n\t" // d15 = (-n) & (16 - 1)
2283 + " lea.4 %3, (%3,d15) \n\t"
2284 + " calli %3, 0(%3) \n\t"
2285 +
2286 + "1: .rept 16 \n\t"
2287 + " move.1 (%0)1++, (%1)1++ \n\t"
2288 + " .endr \n\t"
2289 + " add.4 %2, #-16, %2 \n\t"
2290 + " jmpgt.w.f 1b \n\t"
2291 + "2: \n\t"
2292 +
2293 + : "+a"(dest), "+a"(src), "+d"(n), "=a"(aligned_start)
2294 + :
2295 + : "d15", "memory", "cc"
2296 + );
2297 +
2298 + return dest_ret;
2299 +}
2300 +libc_hidden_def(memcpy)
2301 --- /dev/null
2302 +++ b/libc/string/ubicom32/memset.c
2303 @@ -0,0 +1,107 @@
2304 +/* Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc.
2305 + This file is part of the GNU C Library.
2306 +
2307 + The GNU C Library is free software; you can redistribute it and/or
2308 + modify it under the terms of the GNU Lesser General Public
2309 + License as published by the Free Software Foundation; either
2310 + version 2.1 of the License, or (at your option) any later version.
2311 +
2312 + The GNU C Library is distributed in the hope that it will be useful,
2313 + but WITHOUT ANY WARRANTY; without even the implied warranty of
2314 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2315 + Lesser General Public License for more details.
2316 +
2317 + You should have received a copy of the GNU Lesser General Public
2318 + License along with the GNU C Library; if not, write to the Free
2319 + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
2320 + 02111-1307 USA. */
2321 +
2322 +#include <string.h>
2323 +
2324 +typedef unsigned long addr_t;
2325 +
2326 +libc_hidden_proto(memset)
2327 +void *memset (void *s, int c, size_t n)
2328 +{
2329 + void *s_ret = s;
2330 + void *aligned_start;
2331 + if (likely(n > 6)) {
2332 + size_t m;
2333 + n -= (4 - (addr_t)s) & 0x03;
2334 + m = n >> 2;
2335 + __asm__ volatile (
2336 + " call %4, 99f \n\t" // load %4 with address of 99
2337 + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
2338 + " add.4 %4, %4, d15 \n\t" // add difference
2339 +
2340 + " sub.4 d15, #0, %2 \n\t" // set up for jump table
2341 + " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
2342 + " shmrg.1 %1, %1, %1 \n\t"
2343 + " shmrg.2 %1, %1, %1 \n\t" // %1 = (c<<24)|(c<<16)|(c<<8)|c
2344 + " lea.4 %4, (%4,d15) \n\t"
2345 +
2346 + " bfextu d15, %0, #2 \n\t" // d15 = (s & 3)
2347 + " jmpne.w.f 100f \n\t"
2348 + " calli %4, 0(%4) \n\t" // 4-byte alignment
2349 +
2350 + "100: cmpi d15, #2 \n\t"
2351 + " jmpne.s.f 101f \n\t"
2352 + " move.2 (%0)2++, %1 \n\t"
2353 + " calli %4, 0(%4) \n\t" // 2-byte alignment
2354 +
2355 + "101: move.1 (%0)1++, %1 \n\t"
2356 + " jmpgt.s.f 102f \n\t" // 3-byte alignment
2357 + " move.2 (%0)2++, %1 \n\t" // 1-byte alignment
2358 + "102: calli %4, 0(%4) \n\t"
2359 +
2360 + "200: cmpi %3, #2 \n\t"
2361 + " jmplt.s.f 201f \n\t"
2362 + " move.2 (%0)2++, %1 \n\t"
2363 + " jmpeq.s.t 2f \n\t"
2364 + "201: move.1 (%0)1++, %1 \n\t"
2365 + " jmpt.w.t 2f \n\t"
2366 +
2367 + "1: .rept 25 \n\t"
2368 + " movea (%0)4++, %1 \n\t"
2369 + " .endr \n\t"
2370 + " .rept 7 \n\t"
2371 + " move.4 (%0)4++, %1 \n\t"
2372 + " .endr \n\t"
2373 + " add.4 %2, #-32, %2 \n\t"
2374 + " jmpgt.w.f 1b \n\t"
2375 +
2376 + " and.4 %3, #3, %3 \n\t" // test bit 1 of n
2377 + " jmpne.w.f 200b \n\t"
2378 + "2: \n\t"
2379 + : "+a"(s), "+d"(c), "+d"(m), "+d"(n), "=a"(aligned_start)
2380 + :
2381 + : "d15", "memory", "cc"
2382 + );
2383 +
2384 + return s_ret;
2385 + }
2386 +
2387 + __asm__ volatile (
2388 + " call %3, 99f \n\t" // load %3 with address of 99
2389 + "99: movei d15, #%%lo(1f-99b) \n\t" // load d15 with offset to 1 from 99
2390 + " add.4 %3, %3, d15 \n\t" // add difference
2391 +
2392 + " sub.4 d15, #0, %2 \n\t"
2393 + " jmpeq.w.f 2f \n\t"
2394 + " and.4 d15, #(8-1), d15 \n\t" // d15 = (-%2) & (16 - 1)
2395 + " lea.4 %3, (%3,d15) \n\t"
2396 + " calli %3, 0(%3) \n\t"
2397 +
2398 + "1: .rept 8 \n\t"
2399 + " move.1 (%0)1++, %1 \n\t"
2400 + " .endr \n\t"
2401 + "2: \n\t"
2402 +
2403 + : "+a"(s), "+d"(c), "+d"(n), "=a"(aligned_start)
2404 + :
2405 + : "d15", "memory", "cc"
2406 + );
2407 +
2408 + return s_ret;
2409 +}
2410 +libc_hidden_def(memset)
2411 --- /dev/null
2412 +++ b/libc/sysdeps/linux/ubicom32/Makefile
2413 @@ -0,0 +1,13 @@
2414 +# Makefile for uClibc
2415 +#
2416 +# Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
2417 +#
2418 +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
2419 +#
2420 +
2421 +top_srcdir=../../../../
2422 +top_builddir=../../../../
2423 +all: objs
2424 +include $(top_builddir)Rules.mak
2425 +include Makefile.arch
2426 +include $(top_srcdir)Makerules
2427 --- /dev/null
2428 +++ b/libc/sysdeps/linux/ubicom32/Makefile.arch
2429 @@ -0,0 +1,28 @@
2430 +# Makefile for uClibc
2431 +#
2432 +# Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
2433 +#
2434 +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
2435 +#
2436 +
2437 +#CSRC := \
2438 +# brk.c \
2439 +# crtbegin.c \
2440 +# crtend.c
2441 +#
2442 +#SSRC := \
2443 +# __longjmp.S \
2444 +# bsd-_setjmp.S \
2445 +# bsd-setjmp.S \
2446 +# setjmp.S \
2447 +# clone.S \
2448 +# vfork.S
2449 +
2450 +CSRC := \
2451 + syscall.c __syscall_error.c
2452 +
2453 +SSRC := \
2454 + clone.S setjmp.S vfork.S
2455 +
2456 +ARCH_CFLAGS := $(CPU_CFLAGS-y)
2457 +include $(top_srcdir)libc/sysdeps/linux/Makefile.commonarch
2458 --- /dev/null
2459 +++ b/libc/sysdeps/linux/ubicom32/__syscall_error.c
2460 @@ -0,0 +1,11 @@
2461 +#include <errno.h>
2462 +#include <features.h>
2463 +
2464 +/* This routine is jumped to by some of the syscall handlers, to stash
2465 + * an error number into errno. */
2466 +int __syscall_error(int err_no) attribute_hidden;
2467 +int __syscall_error(int err_no)
2468 +{
2469 + __set_errno(err_no);
2470 + return -1;
2471 +}
2472 --- /dev/null
2473 +++ b/libc/sysdeps/linux/ubicom32/bits/elf-fdpic.h
2474 @@ -0,0 +1,115 @@
2475 +/* Copyright 2003, 2004 Free Software Foundation, Inc.
2476 +This file is part of the GNU C Library.
2477 +
2478 +The GNU C Library is free software; you can redistribute it and/or
2479 +modify it under the terms of the GNU Lesser General Public License as
2480 +published by the Free Software Foundation; either version 2.1 of the
2481 +License, or (at your option) any later version.
2482 +
2483 +In addition to the permissions in the GNU Lesser General Public
2484 +License, the Free Software Foundation gives you unlimited
2485 +permission to link the compiled version of this file with other
2486 +programs, and to distribute those programs without any restriction
2487 +coming from the use of this file. (The GNU Lesser General Public
2488 +License restrictions do apply in other respects; for example, they
2489 +cover modification of the file, and distribution when not linked
2490 +into another program.)
2491 +
2492 +The GNU C Library is distributed in the hope that it will be useful,
2493 +but WITHOUT ANY WARRANTY; without even the implied warranty of
2494 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2495 +Library General Public License for more details.
2496 +
2497 +You should have received a copy of the GNU Lesser General Public
2498 +License along with the GNU C Library; see the file COPYING.LIB. If
2499 +not, write to the Free Software Foundation, Inc., 675 Mass Ave,
2500 +Cambridge, MA 02139, USA. */
2501 +
2502 +#ifndef _BITS_ELF_FDPIC_H
2503 +#define _BITS_ELF_FDPIC_H
2504 +
2505 +/* These data structures are described in the FDPIC ABI extension.
2506 + The kernel passes a process a memory map, such that for every LOAD
2507 + segment there is an elf32_fdpic_loadseg entry. A pointer to an
2508 + elf32_fdpic_loadmap is passed in d8 at start-up, and a pointer to
2509 + an additional such map is passed in d9 for the interpreter, when
2510 + there is one. */
2511 +
2512 +#include <elf.h>
2513 +
2514 +/* This data structure represents a PT_LOAD segment. */
2515 +struct elf32_fdpic_loadseg
2516 +{
2517 + /* Core address to which the segment is mapped. */
2518 + Elf32_Addr addr;
2519 + /* VMA recorded in the program header. */
2520 + Elf32_Addr p_vaddr;
2521 + /* Size of this segment in memory. */
2522 + Elf32_Word p_memsz;
2523 +};
2524 +
2525 +struct elf32_fdpic_loadmap {
2526 + /* Protocol version number, must be zero. */
2527 + Elf32_Half version;
2528 + /* Number of segments in this map. */
2529 + Elf32_Half nsegs;
2530 + /* The actual memory map. */
2531 + struct elf32_fdpic_loadseg segs[/*nsegs*/];
2532 +};
2533 +
2534 +struct elf32_fdpic_loadaddr {
2535 + struct elf32_fdpic_loadmap *map;
2536 + void *got_value;
2537 +};
2538 +
2539 +/* Map a pointer's VMA to its corresponding address according to the
2540 + load map. */
2541 +static __always_inline void *
2542 +__reloc_pointer (void *p,
2543 + const struct elf32_fdpic_loadmap *map)
2544 +{
2545 + int c;
2546 +
2547 +#if 0
2548 + if (map->version != 0)
2549 + /* Crash. */
2550 + ((void(*)())0)();
2551 +#endif
2552 +
2553 + /* No special provision is made for NULL. We don't want NULL
2554 + addresses to go through relocation, so they shouldn't be in
2555 + .rofixup sections, and, if they're present in dynamic
2556 + relocations, they shall be mapped to the NULL address without
2557 + undergoing relocations. */
2558 +
2559 + for (c = 0;
2560 + /* Take advantage of the fact that the loadmap is ordered by
2561 + virtual addresses. In general there will only be 2 entries,
2562 + so it's not profitable to do a binary search. */
2563 + c < map->nsegs && p >= (void*)map->segs[c].p_vaddr;
2564 + c++)
2565 + {
2566 + /* This should be computed as part of the pointer comparison
2567 + above, but we want to use the carry in the comparison, so we
2568 + can't convert it to an integer type beforehand. */
2569 + unsigned long offset = p - (void*)map->segs[c].p_vaddr;
2570 + /* We only check for one-past-the-end for the last segment,
2571 + assumed to be the data segment, because other cases are
2572 + ambiguous in the absence of padding between segments, and
2573 + rofixup already serves as padding between text and data.
2574 + Unfortunately, unless we special-case the last segment, we
2575 + fail to relocate the _end symbol. */
2576 + if (offset < map->segs[c].p_memsz
2577 + || (offset == map->segs[c].p_memsz && c + 1 == map->nsegs))
2578 + return (char*)map->segs[c].addr + offset;
2579 + }
2580 +
2581 + /* We might want to crash instead. */
2582 + return (void*)-1;
2583 +}
2584 +
2585 +# define __RELOC_POINTER(ptr, loadaddr) \
2586 + (__reloc_pointer ((void*)(ptr), \
2587 + (loadaddr).map))
2588 +
2589 +#endif /* _BITS_ELF_FDPIC_H */
2590 --- /dev/null
2591 +++ b/libc/sysdeps/linux/ubicom32/bits/endian.h
2592 @@ -0,0 +1,7 @@
2593 +/* Ubicom32 is big-endian. */
2594 +
2595 +#ifndef _ENDIAN_H
2596 +# error "Never use <bits/endian.h> directly; include <endian.h> instead."
2597 +#endif
2598 +
2599 +#define __BYTE_ORDER __BIG_ENDIAN
2600 --- /dev/null
2601 +++ b/libc/sysdeps/linux/ubicom32/bits/fcntl.h
2602 @@ -0,0 +1,226 @@
2603 +/* O_*, F_*, FD_* bit values for Linux.
2604 + Copyright (C) 2000 Free Software Foundation, Inc.
2605 + This file is part of the GNU C Library.
2606 +
2607 + The GNU C Library is free software; you can redistribute it and/or
2608 + modify it under the terms of the GNU Lesser General Public
2609 + License as published by the Free Software Foundation; either
2610 + version 2.1 of the License, or (at your option) any later version.
2611 +
2612 + The GNU C Library is distributed in the hope that it will be useful,
2613 + but WITHOUT ANY WARRANTY; without even the implied warranty of
2614 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2615 + Lesser General Public License for more details.
2616 +
2617 + You should have received a copy of the GNU Lesser General Public
2618 + License along with the GNU C Library; if not, write to the Free
2619 + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
2620 + 02111-1307 USA. */
2621 +
2622 +#ifndef _FCNTL_H
2623 +# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
2624 +#endif
2625 +
2626 +
2627 +#include <sys/types.h>
2628 +#ifdef __USE_GNU
2629 +# include <bits/uio.h>
2630 +#endif
2631 +
2632 +/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
2633 + located on an ext2 file system */
2634 +#define O_ACCMODE 0003
2635 +#define O_RDONLY 00
2636 +#define O_WRONLY 01
2637 +#define O_RDWR 02
2638 +#define O_CREAT 0100 /* not fcntl */
2639 +#define O_EXCL 0200 /* not fcntl */
2640 +#define O_NOCTTY 0400 /* not fcntl */
2641 +#define O_TRUNC 01000 /* not fcntl */
2642 +#define O_APPEND 02000
2643 +#define O_NONBLOCK 04000
2644 +#define O_NDELAY O_NONBLOCK
2645 +#define O_SYNC 010000
2646 +#define O_FSYNC O_SYNC
2647 +#define O_ASYNC 020000
2648 +
2649 +#ifdef __USE_GNU
2650 +# define O_DIRECTORY 040000 /* Must be a directory. */
2651 +# define O_NOFOLLOW 0100000 /* Do not follow links. */
2652 +# define O_DIRECT 0200000 /* Direct disk access. */
2653 +# define O_NOATIME 01000000 /* Do not set atime. */
2654 +# define O_CLOEXEC 02000000 /* set close_on_exec */
2655 +# define O_STREAMING 04000000 /* streaming access */
2656 +#endif
2657 +
2658 +/* For now Linux has synchronisity options for data and read operations.
2659 + We define the symbols here but let them do the same as O_SYNC since
2660 + this is a superset. */
2661 +#if defined __USE_POSIX199309 || defined __USE_UNIX98
2662 +# define O_DSYNC O_SYNC /* Synchronize data. */
2663 +# define O_RSYNC O_SYNC /* Synchronize read operations. */
2664 +#endif
2665 +
2666 +#ifdef __USE_LARGEFILE64
2667 +# define O_LARGEFILE 0400000
2668 +#endif
2669 +
2670 +/* Values for the second argument to `fcntl'. */
2671 +#define F_DUPFD 0 /* Duplicate file descriptor. */
2672 +#define F_GETFD 1 /* Get file descriptor flags. */
2673 +#define F_SETFD 2 /* Set file descriptor flags. */
2674 +#define F_GETFL 3 /* Get file status flags. */
2675 +#define F_SETFL 4 /* Set file status flags. */
2676 +#ifndef __USE_FILE_OFFSET64
2677 +# define F_GETLK 5 /* Get record locking info. */
2678 +# define F_SETLK 6 /* Set record locking info (non-blocking). */
2679 +# define F_SETLKW 7 /* Set record locking info (blocking). */
2680 +#else
2681 +# define F_GETLK F_GETLK64 /* Get record locking info. */
2682 +# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/
2683 +# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */
2684 +#endif
2685 +#define F_GETLK64 12 /* Get record locking info. */
2686 +#define F_SETLK64 13 /* Set record locking info (non-blocking). */
2687 +#define F_SETLKW64 14 /* Set record locking info (blocking). */
2688 +
2689 +#if defined __USE_BSD || defined __USE_XOPEN2K
2690 +# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */
2691 +# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */
2692 +#endif
2693 +
2694 +#ifdef __USE_GNU
2695 +# define F_SETSIG 10 /* Set number of signal to be sent. */
2696 +# define F_GETSIG 11 /* Get number of signal to be sent. */
2697 +#endif
2698 +
2699 +#ifdef __USE_GNU
2700 +# define F_SETLEASE 1024 /* Set a lease. */
2701 +# define F_GETLEASE 1025 /* Enquire what lease is active. */
2702 +# define F_NOTIFY 1026 /* Request notfications on a directory. */
2703 +#endif
2704 +
2705 +/* For F_[GET|SET]FL. */
2706 +#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
2707 +
2708 +/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */
2709 +#define F_RDLCK 0 /* Read lock. */
2710 +#define F_WRLCK 1 /* Write lock. */
2711 +#define F_UNLCK 2 /* Remove lock. */
2712 +
2713 +/* For old implementation of bsd flock(). */
2714 +#define F_EXLCK 4 /* or 3 */
2715 +#define F_SHLCK 8 /* or 4 */
2716 +
2717 +#ifdef __USE_BSD
2718 +/* Operations for bsd flock(), also used by the kernel implementation. */
2719 +# define LOCK_SH 1 /* shared lock */
2720 +# define LOCK_EX 2 /* exclusive lock */
2721 +# define LOCK_NB 4 /* or'd with one of the above to prevent
2722 + blocking */
2723 +# define LOCK_UN 8 /* remove lock */
2724 +#endif
2725 +
2726 +#ifdef __USE_GNU
2727 +# define LOCK_MAND 32 /* This is a mandatory flock: */
2728 +# define LOCK_READ 64 /* ... which allows concurrent read operations. */
2729 +# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */
2730 +# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */
2731 +#endif
2732 +
2733 +#ifdef __USE_GNU
2734 +/* Types of directory notifications that may be requested with F_NOTIFY. */
2735 +# define DN_ACCESS 0x00000001 /* File accessed. */
2736 +# define DN_MODIFY 0x00000002 /* File modified. */
2737 +# define DN_CREATE 0x00000004 /* File created. */
2738 +# define DN_DELETE 0x00000008 /* File removed. */
2739 +# define DN_RENAME 0x00000010 /* File renamed. */
2740 +# define DN_ATTRIB 0x00000020 /* File changed attibutes. */
2741 +# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
2742 +#endif
2743 +
2744 +struct flock
2745 + {
2746 + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
2747 + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
2748 +#ifndef __USE_FILE_OFFSET64
2749 + __off_t l_start; /* Offset where the lock begins. */
2750 + __off_t l_len; /* Size of the locked area; zero means until EOF. */
2751 +#else
2752 + __off64_t l_start; /* Offset where the lock begins. */
2753 + __off64_t l_len; /* Size of the locked area; zero means until EOF. */
2754 +#endif
2755 + __pid_t l_pid; /* Process holding the lock. */
2756 + };
2757 +
2758 +#ifdef __USE_LARGEFILE64
2759 +struct flock64
2760 + {
2761 + short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
2762 + short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
2763 + __off64_t l_start; /* Offset where the lock begins. */
2764 + __off64_t l_len; /* Size of the locked area; zero means until EOF. */
2765 + __pid_t l_pid; /* Process holding the lock. */
2766 + };
2767 +#endif
2768 +
2769 +/* Define some more compatibility macros to be backward compatible with
2770 + BSD systems which did not managed to hide these kernel macros. */
2771 +#ifdef __USE_BSD
2772 +# define FAPPEND O_APPEND
2773 +# define FFSYNC O_FSYNC
2774 +# define FASYNC O_ASYNC
2775 +# define FNONBLOCK O_NONBLOCK
2776 +# define FNDELAY O_NDELAY
2777 +#endif /* Use BSD. */
2778 +
2779 +/* Advise to `posix_fadvise'. */
2780 +#ifdef __USE_XOPEN2K
2781 +# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
2782 +# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
2783 +# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
2784 +# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
2785 +# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
2786 +# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
2787 +#endif
2788 +
2789 +#ifdef __USE_GNU
2790 +# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
2791 + in the range before performing the
2792 + write. */
2793 +# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
2794 + dirty pages in the range which are
2795 + not presently under writeback. */
2796 +# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
2797 + the range after performing the
2798 + write. */
2799 +#endif
2800 +
2801 +__BEGIN_DECLS
2802 +
2803 +#ifdef __USE_GNU
2804 +
2805 +/* Provide kernel hint to read ahead. */
2806 +extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
2807 + __THROW;
2808 +
2809 +/* Selective file content synch'ing. */
2810 +extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
2811 + unsigned int __flags);
2812 +
2813 +/* Splice address range into a pipe. */
2814 +extern ssize_t vmsplice (int __fdout, const struct iovec *__iov,
2815 + size_t __count, unsigned int __flags);
2816 +
2817 +/* Splice two files together. */
2818 +extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout,
2819 + __off64_t *__offout, size_t __len,
2820 + unsigned int __flags);
2821 +
2822 +/* In-kernel implementation of tee for pipe buffers. */
2823 +extern ssize_t tee (int __fdin, int __fdout, size_t __len,
2824 + unsigned int __flags);
2825 +
2826 +#endif
2827 +
2828 +__END_DECLS
2829 --- /dev/null
2830 +++ b/libc/sysdeps/linux/ubicom32/bits/kernel_stat.h
2831 @@ -0,0 +1,55 @@
2832 +#ifndef _BITS_STAT_STRUCT_H
2833 +#define _BITS_STAT_STRUCT_H
2834 +
2835 +#ifndef _LIBC
2836 +#error bits/kernel_stat.h is for internal uClibc use only!
2837 +#endif
2838 +
2839 +/* This file provides whatever this particular arch's kernel thinks
2840 + * struct kernel_stat should look like... It turns out each arch has a
2841 + * different opinion on the subject... */
2842 +
2843 +struct kernel_stat {
2844 + unsigned short st_dev;
2845 + unsigned short __pad1;
2846 + unsigned long st_ino;
2847 + unsigned short st_mode;
2848 + unsigned short st_nlink;
2849 + unsigned short st_uid;
2850 + unsigned short st_gid;
2851 + unsigned short st_rdev;
2852 + unsigned short __pad2;
2853 + unsigned long st_size;
2854 + unsigned long st_blksize;
2855 + unsigned long st_blocks;
2856 + struct timespec st_atim;
2857 + struct timespec st_mtim;
2858 + struct timespec st_ctim;
2859 + unsigned long __unused4;
2860 + unsigned long __unused5;
2861 +};
2862 +
2863 +struct kernel_stat64 {
2864 + unsigned char __pad0[6];
2865 + unsigned short st_dev;
2866 + unsigned char __pad1[4];
2867 +#define _HAVE_STAT64___ST_INO
2868 + unsigned long __st_ino;
2869 + unsigned int st_mode;
2870 + unsigned int st_nlink;
2871 + unsigned long st_uid;
2872 + unsigned long st_gid;
2873 + unsigned char __pad2[6];
2874 + unsigned short st_rdev;
2875 + unsigned char __pad3[4];
2876 + long long st_size;
2877 + unsigned long st_blksize;
2878 + unsigned long st_blocks; /* Number 512-byte blocks allocated. */
2879 + unsigned long __pad4; /* future possible st_blocks high bits */
2880 + struct timespec st_atim;
2881 + struct timespec st_mtim;
2882 + struct timespec st_ctim;
2883 + unsigned long long st_ino;
2884 +};
2885 +
2886 +#endif /* _BITS_STAT_STRUCT_H */
2887 --- /dev/null
2888 +++ b/libc/sysdeps/linux/ubicom32/bits/kernel_types.h
2889 @@ -0,0 +1,44 @@
2890 +/* Note that we use the exact same include guard #define names
2891 + * as asm/posix_types.h. This will avoid gratuitous conflicts
2892 + * with the posix_types.h kernel header, and will ensure that
2893 + * our private content, and not the kernel header, will win.
2894 + * -Erik
2895 + */
2896 +#ifndef __ARCH_UBICOM32_POSIX_TYPES_H
2897 +#define __ARCH_UBICOM32_POSIX_TYPES_H
2898 +
2899 +typedef unsigned long __kernel_dev_t;
2900 +typedef unsigned long __kernel_ino_t;
2901 +typedef unsigned short __kernel_mode_t;
2902 +typedef unsigned short __kernel_nlink_t;
2903 +typedef long __kernel_off_t;
2904 +typedef int __kernel_pid_t;
2905 +typedef unsigned short __kernel_ipc_pid_t;
2906 +typedef unsigned short __kernel_uid_t;
2907 +typedef unsigned short __kernel_gid_t;
2908 +typedef unsigned int __kernel_size_t;
2909 +typedef int __kernel_ssize_t;
2910 +typedef int __kernel_ptrdiff_t;
2911 +typedef long __kernel_time_t;
2912 +typedef long __kernel_suseconds_t;
2913 +typedef long __kernel_clock_t;
2914 +typedef int __kernel_daddr_t;
2915 +typedef char * __kernel_caddr_t;
2916 +typedef unsigned short __kernel_uid16_t;
2917 +typedef unsigned short __kernel_gid16_t;
2918 +typedef unsigned int __kernel_uid32_t;
2919 +typedef unsigned int __kernel_gid32_t;
2920 +typedef unsigned short __kernel_old_uid_t;
2921 +typedef unsigned short __kernel_old_gid_t;
2922 +typedef unsigned short __kernel_old_dev_t;
2923 +typedef long long __kernel_loff_t;
2924 +
2925 +typedef struct {
2926 +#ifdef __USE_ALL
2927 + int val[2];
2928 +#else
2929 + int __val[2];
2930 +#endif
2931 +} __kernel_fsid_t;
2932 +
2933 +#endif /* __ARCH_UBICOM32_POSIX_TYPES_H */
2934 --- /dev/null
2935 +++ b/libc/sysdeps/linux/ubicom32/bits/mman.h
2936 @@ -0,0 +1,103 @@
2937 +/* Definitions for POSIX memory map interface. Linux/m68k version.
2938 + Copyright (C) 1997, 2000, 2003, 2005 Free Software Foundation, Inc.
2939 + This file is part of the GNU C Library.
2940 +
2941 + The GNU C Library is free software; you can redistribute it and/or
2942 + modify it under the terms of the GNU Lesser General Public
2943 + License as published by the Free Software Foundation; either
2944 + version 2.1 of the License, or (at your option) any later version.
2945 +
2946 + The GNU C Library is distributed in the hope that it will be useful,
2947 + but WITHOUT ANY WARRANTY; without even the implied warranty of
2948 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2949 + Lesser General Public License for more details.
2950 +
2951 + You should have received a copy of the GNU Lesser General Public
2952 + License along with the GNU C Library; if not, write to the Free
2953 + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
2954 + 02111-1307 USA. */
2955 +
2956 +#ifndef _SYS_MMAN_H
2957 +# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
2958 +#endif
2959 +
2960 +/* The following definitions basically come from the kernel headers.
2961 + But the kernel header is not namespace clean. */
2962 +
2963 +
2964 +/* Protections are chosen from these bits, OR'd together. The
2965 + implementation does not necessarily support PROT_EXEC or PROT_WRITE
2966 + without PROT_READ. The only guarantees are that no writing will be
2967 + allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
2968 +
2969 +#define PROT_READ 0x1 /* Page can be read. */
2970 +#define PROT_WRITE 0x2 /* Page can be written. */
2971 +#define PROT_EXEC 0x4 /* Page can be executed. */
2972 +#define PROT_NONE 0x0 /* Page can not be accessed. */
2973 +#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
2974 + growsdown vma (mprotect only). */
2975 +#define PROT_GROWSUP 0x02000000 /* Extend change to start of
2976 + growsup vma (mprotect only). */
2977 +
2978 +/* Sharing types (must choose one and only one of these). */
2979 +#define MAP_SHARED 0x01 /* Share changes. */
2980 +#define MAP_PRIVATE 0x02 /* Changes are private. */
2981 +#ifdef __USE_MISC
2982 +# define MAP_TYPE 0x0f /* Mask for type of mapping. */
2983 +#endif
2984 +
2985 +/* Other flags. */
2986 +#define MAP_FIXED 0x10 /* Interpret addr exactly. */
2987 +#ifdef __USE_MISC
2988 +# define MAP_FILE 0
2989 +# define MAP_ANONYMOUS 0x20 /* Don't use a file. */
2990 +# define MAP_ANON MAP_ANONYMOUS
2991 +#endif
2992 +
2993 +/* These are Linux-specific. */
2994 +#ifdef __USE_MISC
2995 +# define MAP_GROWSDOWN 0x0000100 /* Stack-like segment. */
2996 +# define MAP_DENYWRITE 0x0000800 /* ETXTBSY */
2997 +# define MAP_EXECUTABLE 0x0001000 /* Mark it as an executable. */
2998 +# define MAP_LOCKED 0x0002000 /* Lock the mapping. */
2999 +# define MAP_NORESERVE 0x0004000 /* Don't check for reservations. */
3000 +# define MAP_POPULATE 0x0008000 /* Populate (prefault) pagetables. */
3001 +# define MAP_NONBLOCK 0x0010000 /* Do not block on IO. */
3002 +# define MAP_UNINITIALIZE 0x4000000 /* For anonymous mmap, memory could be uninitialized. */
3003 +#endif
3004 +
3005 +/* Flags to `msync'. */
3006 +#define MS_ASYNC 1 /* Sync memory asynchronously. */
3007 +#define MS_SYNC 4 /* Synchronous memory sync. */
3008 +#define MS_INVALIDATE 2 /* Invalidate the caches. */
3009 +
3010 +/* Flags for `mlockall'. */
3011 +#define MCL_CURRENT 1 /* Lock all currently mapped pages. */
3012 +#define MCL_FUTURE 2 /* Lock all additions to address
3013 + space. */
3014 +
3015 +/* Flags for `mremap'. */
3016 +#ifdef __USE_GNU
3017 +# define MREMAP_MAYMOVE 1
3018 +# define MREMAP_FIXED 2
3019 +#endif
3020 +
3021 +/* Advice to `madvise'. */
3022 +#ifdef __USE_BSD
3023 +# define MADV_NORMAL 0 /* No further special treatment. */
3024 +# define MADV_RANDOM 1 /* Expect random page references. */
3025 +# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
3026 +# define MADV_WILLNEED 3 /* Will need these pages. */
3027 +# define MADV_DONTNEED 4 /* Don't need these pages. */
3028 +# define MADV_DONTFORK 10 /* Do not inherit across fork. */
3029 +# define MADV_DOFORK 11 /* Do inherit across fork. */
3030 +#endif
3031 +
3032 +/* The POSIX people had to invent similar names for the same things. */
3033 +#ifdef __USE_XOPEN2K
3034 +# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
3035 +# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
3036 +# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
3037 +# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
3038 +# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
3039 +#endif
3040 --- /dev/null
3041 +++ b/libc/sysdeps/linux/ubicom32/bits/setjmp.h
3042 @@ -0,0 +1,52 @@
3043 +/* Define the machine-dependent type `jmp_buf'. Ubicom32 version.
3044 + Copyright (C) 1992,93,95,97,2000 Free Software Foundation, Inc.
3045 + This file is part of the GNU C Library.
3046 +
3047 + The GNU C Library is free software; you can redistribute it and/or
3048 + modify it under the terms of the GNU Lesser General Public
3049 + License as published by the Free Software Foundation; either
3050 + version 2.1 of the License, or (at your option) any later version.
3051 +
3052 + The GNU C Library is distributed in the hope that it will be useful,
3053 + but WITHOUT ANY WARRANTY; without even the implied warranty of
3054 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3055 + Lesser General Public License for more details.
3056 +
3057 + You should have received a copy of the GNU Lesser General Public
3058 + License along with the GNU C Library; if not, write to the Free
3059 + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
3060 + 02111-1307 USA. */
3061 +
3062 +#ifndef _BITS_SETJMP_H
3063 +#define _BITS_SETJMP_H 1
3064 +
3065 +#if !defined _SETJMP_H && !defined _PTHREAD_H
3066 +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
3067 +#endif
3068 +
3069 +#ifndef _ASM
3070 +/*
3071 + * This is the structure where we are going to save D10-D13, A0, A1, A2, A5, A6 and SP(A7).
3072 + * A5 is the return address. Call to setjmp will save these. Call to longjmp will return
3073 + * Control to the address in A5.
3074 + */
3075 +typedef struct setjmp_save_struct {
3076 + unsigned long d10; /* D10 */
3077 + unsigned long d11; /* D11 */
3078 + unsigned long d12; /* D12 */
3079 + unsigned long d13; /* D13 */
3080 + unsigned long a1; /* A1 */
3081 + unsigned long a2; /* A2 */
3082 + unsigned long a5; /* A5 return address. */
3083 + unsigned long a6; /* A6 */
3084 + unsigned long sp; /* A7 stack pointer. */
3085 +} __jmp_buf[1];
3086 +
3087 +#endif
3088 +
3089 +/* Test if longjmp to JMPBUF would unwind the frame
3090 + containing a local variable at ADDRESS. */
3091 +#define _JMPBUF_UNWINDS(jmpbuf, address) \
3092 + ((void *) (address) < (void*)(jmpbuf)->sp)
3093 +
3094 +#endif /* bits/setjmp.h */
3095 --- /dev/null
3096 +++ b/libc/sysdeps/linux/ubicom32/bits/stackinfo.h
3097 @@ -0,0 +1,28 @@
3098 +/* Copyright (C) 1999 Free Software Foundation, Inc.
3099 + This file is part of the GNU C Library.
3100 +
3101 + The GNU C Library is free software; you can redistribute it and/or
3102 + modify it under the terms of the GNU Lesser General Public
3103 + License as published by the Free Software Foundation; either
3104 + version 2.1 of the License, or (at your option) any later version.
3105 +
3106 + The GNU C Library is distributed in the hope that it will be useful,
3107 + but WITHOUT ANY WARRANTY; without even the implied warranty of
3108 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3109 + Lesser General Public License for more details.
3110 +
3111 + You should have received a copy of the GNU Lesser General Public
3112 + License along with the GNU C Library; if not, write to the Free
3113 + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
3114 + 02111-1307 USA. */
3115 +
3116 +/* This file contains a bit of information about the stack allocation
3117 + of the processor. */
3118 +
3119 +#ifndef _STACKINFO_H
3120 +#define _STACKINFO_H 1
3121 +
3122 +/* On Ubicom32 the stack grows down. */
3123 +#define _STACK_GROWS_DOWN 1
3124 +
3125 +#endif /* stackinfo.h */
3126 --- /dev/null
3127 +++ b/libc/sysdeps/linux/ubicom32/bits/syscalls.h
3128 @@ -0,0 +1,81 @@
3129 +#ifndef _BITS_SYSCALLS_H
3130 +#define _BITS_SYSCALLS_H
3131 +#ifndef _SYSCALL_H
3132 +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
3133 +#endif
3134 +
3135 +/* m68k headers does stupid stuff with __NR_iopl / __NR_vm86:
3136 + * #define __NR_iopl not supported
3137 + * #define __NR_vm86 not supported
3138 + */
3139 +#undef __NR_iopl
3140 +#undef __NR_vm86
3141 +
3142 +#ifndef __ASSEMBLER__
3143 +
3144 +#include <errno.h>
3145 +
3146 +/* Linux takes system call arguments in registers:
3147 +
3148 + syscall number %d8
3149 + arg 1 %d0
3150 + arg 2 %d1
3151 + arg 3 %d2
3152 + arg 4 %d3
3153 + arg 5 %d4
3154 + arg 6 %d5
3155 +*/
3156 +
3157 +#define __loadargs_0(name, dummy) \
3158 + d8 = (long int)name
3159 +
3160 +#define __loadargs_1(name, __arg1) \
3161 + __loadargs_0(name, 0); \
3162 + d0_retval = (long int) __arg1
3163 +
3164 +#define __loadargs_2(name, __arg1, __arg2) \
3165 + __loadargs_1(name, __arg1); \
3166 + d1 = (long int) __arg2
3167 +
3168 +#define __loadargs_3(name, __arg1, __arg2, __arg3) \
3169 + __loadargs_2(name, __arg1, __arg2); \
3170 + d2 = (long int) __arg3
3171 +
3172 +#define __loadargs_4(name, __arg1, __arg2, __arg3, __arg4) \
3173 + __loadargs_3(name, __arg1, __arg2, __arg3); \
3174 + d3 = (long int)__arg4
3175 +
3176 +#define __loadargs_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \
3177 + __loadargs_4(name, __arg1, __arg2, __arg3, __arg4); \
3178 + d4 = (long int)__arg5
3179 +
3180 +#define __loadargs_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \
3181 + __loadargs_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \
3182 + d5 = (long int)__arg6
3183 +
3184 +#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
3185 +({ \
3186 + register long int d0_retval __asm__ ("d0"); \
3187 + register long int d1 __asm__ ("d1"); \
3188 + register long int d2 __asm__ ("d2"); \
3189 + register long int d3 __asm__ ("d3"); \
3190 + register long int d4 __asm__ ("d4"); \
3191 + register long int d5 __asm__ ("d5"); \
3192 + register long int d8 __asm__ ("d8"); \
3193 + __loadargs_##nr (name, args); \
3194 + __asm__ __volatile__ ( \
3195 + " moveai a5, #%%hi(0x40400000)\n\t" \
3196 + " calli a5, 16(a5)\n\t" \
3197 + : "+r" (d0_retval), "+r" (d1), "+r" (d2), "+r" (d3), \
3198 + "+r" (d4), "+r" (d5), "+r" (d8) : \
3199 + : "cc", "memory", \
3200 + "acc0_lo", "acc0_hi", "acc1_lo", "acc1_hi", \
3201 + "source3", \
3202 + "a0", "a3", "a4", "a5", \
3203 + "d6", "d7", "d9", "d14", "d15" \
3204 + ); \
3205 + d0_retval; \
3206 +})
3207 +
3208 +#endif /* __ASSEMBLER__ */
3209 +#endif /* _BITS_SYSCALLS_H */
3210 --- /dev/null
3211 +++ b/libc/sysdeps/linux/ubicom32/bits/uClibc_arch_features.h
3212 @@ -0,0 +1,45 @@
3213 +/*
3214 + * Track misc arch-specific features that aren't config options
3215 + */
3216 +
3217 +#ifndef _BITS_UCLIBC_ARCH_FEATURES_H
3218 +#define _BITS_UCLIBC_ARCH_FEATURES_H
3219 +
3220 +/* instruction used when calling abort() to kill yourself */
3221 +/*#define __UCLIBC_ABORT_INSTRUCTION__ "asm instruction"*/
3222 +#undef __UCLIBC_ABORT_INSTRUCTION__
3223 +
3224 +/* can your target use syscall6() for mmap ? */
3225 +#undef __UCLIBC_MMAP_HAS_6_ARGS__
3226 +
3227 +/* does your target use syscall4() for truncate64 ? (32bit arches only) */
3228 +#undef __UCLIBC_TRUNCATE64_HAS_4_ARGS__
3229 +
3230 +/* does your target have a broken create_module() ? */
3231 +#undef __UCLIBC_BROKEN_CREATE_MODULE__
3232 +
3233 +/* does your target have to worry about older [gs]etrlimit() ? */
3234 +#undef __UCLIBC_HANDLE_OLDER_RLIMIT__
3235 +
3236 +/* does your target prefix all symbols with an _ ? */
3237 +#define __UCLIBC_NO_UNDERSCORES__
3238 +
3239 +/* does your target have an asm .set ? */
3240 +#define __UCLIBC_HAVE_ASM_SET_DIRECTIVE__
3241 +
3242 +/* define if target doesn't like .global */
3243 +#undef __UCLIBC_ASM_GLOBAL_DIRECTIVE__
3244 +
3245 +/* define if target supports .weak */
3246 +#define __UCLIBC_HAVE_ASM_WEAK_DIRECTIVE__
3247 +
3248 +/* define if target supports .weakext */
3249 +#undef __UCLIBC_HAVE_ASM_WEAKEXT_DIRECTIVE__
3250 +
3251 +/* needed probably only for ppc64 */
3252 +#undef __UCLIBC_HAVE_ASM_GLOBAL_DOT_NAME__
3253 +
3254 +/* define if target supports IEEE signed zero floats */
3255 +#define __UCLIBC_HAVE_SIGNED_ZERO__
3256 +
3257 +#endif /* _BITS_UCLIBC_ARCH_FEATURES_H */
3258 --- /dev/null
3259 +++ b/libc/sysdeps/linux/ubicom32/bits/wordsize.h
3260 @@ -0,0 +1,19 @@
3261 +/* Copyright (C) 1999 Free Software Foundation, Inc.
3262 + This file is part of the GNU C Library.
3263 +
3264 + The GNU C Library is free software; you can redistribute it and/or
3265 + modify it under the terms of the GNU Lesser General Public
3266 + License as published by the Free Software Foundation; either
3267 + version 2.1 of the License, or (at your option) any later version.
3268 +
3269 + The GNU C Library is distributed in the hope that it will be useful,
3270 + but WITHOUT ANY WARRANTY; without even the implied warranty of
3271 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3272 + Lesser General Public License for more details.
3273 +
3274 + You should have received a copy of the GNU Lesser General Public
3275 + License along with the GNU C Library; if not, write to the Free
3276 + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
3277 + 02111-1307 USA. */
3278 +
3279 +#define __WORDSIZE 32
3280 --- /dev/null
3281 +++ b/libc/sysdeps/linux/ubicom32/clone.S
3282 @@ -0,0 +1,71 @@
3283 +#include <sys/syscall.h>
3284 +
3285 + .global __syscall_error
3286 +
3287 +/* int _clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
3288 + .text
3289 + .type clone,@function
3290 + .global clone
3291 +clone:
3292 + /* Sanity check arguments. */
3293 + sub.4 #0, #0, d0 /* Test if fn is zero. */
3294 + jmpeq.f 1f /* arg bad */
3295 + sub.4 #0, #0, d1 /* Test if child_stack is zero. */
3296 + jmpeq.f 1f /* arg bad */
3297 +
3298 + /* Set up child_stack frame.. arg and fn */
3299 + move.4 a3, d1
3300 + move.4 -4(a3)++, d3 /* push 'arg' to child stack */
3301 + move.4 -4(a3)++, d0 /* push fn to child stack, this will become a5
3302 + * on new child */
3303 + move.4 d1, a3
3304 + move.4 -4(sp)++, a5 /* push a5 to our stack */
3305 +
3306 + /*
3307 + * The syscall clone is clone(int flags, void *child_stack) so we set
3308 + * that up now
3309 + */
3310 + move.4 d0, d2 /* Move flags to d0 */
3311 +
3312 + /* Do Clone syscall */
3313 + movei d8, #__NR_clone
3314 + moveai a5, #%hi(0x40400000)
3315 + calli a5, 0x10(a5)
3316 + move.4 a5, (sp)4++ /* pop a5 from stack */
3317 +
3318 + /* Clone Complete */
3319 + cmpi d0, #0 /* Test if d0 is less than zero. If it is we
3320 + * return the error */
3321 + jmplt.f 2f /* If return is less than we had an error */
3322 + jmpeq.f 3f /* If return is 0 we are in the clone, jump to
3323 + * thread start */
3324 + ret a5 /* d0 is pid */
3325 +
3326 + /* Invalid Value */
3327 +1: movei d0, #-22 /* EINVAL */
3328 +
3329 + /* Call syscall Error */
3330 +2: sub.4 d0, #0, d0 /* d0 = -d0 */
3331 +#if defined(__UBICOM32_FDPIC__)
3332 + call a3, __syscall_error
3333 +#else
3334 + moveai a3, #%hi(__syscall_error)
3335 + calli a3, %lo(__syscall_error)(a3)
3336 +#endif
3337 + /* Child Thread Start */
3338 +3:
3339 +#if defined(__UBICOM32_FDPIC__)
3340 + /* a5 actually contains a function descriptor for fdpic */
3341 + move.4 a0, 4(a5) /* set GOT for this function */
3342 + move.4 a5, 0(a5) /* get address of entry point */
3343 +#endif
3344 + move.4 d0, (sp)4++ /* pop 'arg' to stack */
3345 + calli a5, 0(a5)
3346 + movei d8, #__NR_exit
3347 + moveai a3, #%hi(0x40400000)
3348 + calli a3, 0x10(a3)
3349 +
3350 + .size clone, . - clone
3351 + .global __GI_clone
3352 + .hidden __GI_clone
3353 + .set __GI_clone,clone
3354 --- /dev/null
3355 +++ b/libc/sysdeps/linux/ubicom32/crt1.S
3356 @@ -0,0 +1,179 @@
3357 +/* Startup code compliant to the ELF m68k ABI.
3358 + Copyright (C) 1996, 1997, 1998, 2001, 2002 Free Software Foundation, Inc.
3359 + This file is part of the GNU C Library.
3360 +
3361 + The GNU C Library is free software; you can redistribute it and/or
3362 + modify it under the terms of the GNU Lesser General Public
3363 + License as published by the Free Software Foundation; either
3364 + version 2.1 of the License, or (at your option) any later version.
3365 +
3366 + In addition to the permissions in the GNU Lesser General Public
3367 + License, the Free Software Foundation gives you unlimited
3368 + permission to link the compiled version of this file with other
3369 + programs, and to distribute those programs without any restriction
3370 + coming from the use of this file. (The GNU Lesser General Public
3371 + License restrictions do apply in other respects; for example, they
3372 + cover modification of the file, and distribution when not linked
3373 + into another program.)
3374 +
3375 + Note that people who make modified versions of this file are not
3376 + obligated to grant this special exception for their modified
3377 + versions; it is their choice whether to do so. The GNU Lesser
3378 + General Public License gives permission to release a modified
3379 + version without this exception; this exception also makes it
3380 + possible to release a modified version which carries forward this
3381 + exception.
3382 +
3383 + The GNU C Library is distributed in the hope that it will be useful,
3384 + but WITHOUT ANY WARRANTY; without even the implied warranty of
3385 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3386 + Lesser General Public License for more details.
3387 +
3388 + You should have received a copy of the GNU Lesser General Public
3389 + License along with the GNU C Library; if not, write to the Free
3390 + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
3391 + 02111-1307 USA. */
3392 +
3393 +#include <features.h>
3394 +
3395 +/* This is the canonical entry point, usually the first thing in the text
3396 + segment. The SVR4/m68k ABI says that when the entry point runs,
3397 + most registers' values are unspecified, except for:
3398 +
3399 + %a1 Contains a function pointer to be registered with `atexit'.
3400 + This is how the dynamic linker arranges to have DT_FINI
3401 + functions called for shared libraries that have been loaded
3402 + before this code runs.
3403 +
3404 + %sp The stack contains the arguments and environment:
3405 + 0(%sp) argc
3406 + 4(%sp) argv[0]
3407 + ...
3408 + (4*argc)(%sp) NULL
3409 + (4*(argc+1))(%sp) envp[0]
3410 + ...
3411 + NULL
3412 +
3413 + The uclinux conventions are different. %a1 is not defined on entry
3414 + and the stack is laid out as follows:
3415 +
3416 + 0(%sp) argc
3417 + 4(%sp) argv
3418 + 8(%sp) envp
3419 +*/
3420 +
3421 +
3422 + .text
3423 + .type main,@function
3424 + .type _init,%function
3425 + .type _fini,%function
3426 +#ifndef __UCLIBC_CTOR_DTOR__
3427 + .weak _init
3428 + .weak _fini
3429 +#endif
3430 + .globl _start
3431 + .global __uClibc_main;
3432 + .type __uClibc_main,@function;
3433 + .type _start,@function
3434 +_start:
3435 +
3436 +#if defined(__UBICOM32_FDPIC__) && !defined(L_Scrt1)
3437 + /* P0 contains a pointer to the program's load map. */
3438 + call a3, .Lcall;
3439 +.Lcall:
3440 + move.4 d0, d1 ; load exec_map_addr
3441 + moveai a4, #%hi(.Lcall)
3442 + lea.1 d15, %lo(.Lcall)(a4)
3443 + sub.4 d15, a3, d15 ; difference between .Lcall and actual address of .Lcall
3444 + moveai a3, #%hi(__ROFIXUP_LIST__)
3445 + lea.1 d1, %lo(__ROFIXUP_LIST__)(a3)
3446 + moveai a3, #%hi(__ROFIXUP_END__)
3447 + lea.1 d2, %lo(__ROFIXUP_END__)(a3)
3448 + add.4 d1, d1, d15
3449 + add.4 d2, d2, d15
3450 + call a5, __self_reloc ; returns GOT in d0
3451 + move.4 a0, d0 ; set GOT
3452 +#endif
3453 +
3454 +/*
3455 + all this is setup to make the following call.
3456 +
3457 + void __uClibc_main(
3458 + d0 - int (*main)(int, char **, char **),
3459 + d1 - int argc, (d1)
3460 + d2 - char **argv,
3461 + d3 - void (*app_init)(void),
3462 + d4 - void (*app_fini)(void),
3463 + d5 - void (*rtld_fini)(void),
3464 + d6 - void *stack_end
3465 + );
3466 + */
3467 +
3468 + /*
3469 + * Load pointer to main into d0
3470 + */
3471 +#ifdef __UBICOM32_FDPIC__
3472 + movei d0, #%got_funcdesc_lo(main)
3473 + move.4 d0, (a0, d0)
3474 +#else
3475 + moveai a3, #%hi(main)
3476 + lea.1 d0, %lo(main)(a3)
3477 +#endif
3478 +
3479 + /*
3480 + * Grab the environment stuff from stack and set up d1, d2 with it.
3481 + */
3482 + move.4 d1, (sp)
3483 +#ifdef __UBICOM32_FDPIC__
3484 + /* For FDPIC the calling convention is different than flat */
3485 + lea.1 d2, 4(sp)
3486 +#else
3487 + move.4 d2, 4(sp)
3488 +#endif
3489 +
3490 +#ifdef __UCLIBC_CTOR_DTOR__
3491 + /*
3492 + * Load pointer to _init into d3
3493 + */
3494 +#ifdef __UBICOM32_FDPIC__
3495 + movei d3, #%got_funcdesc_lo(_init)
3496 + move.4 d3, (a0, d3)
3497 +#else
3498 + moveai a3, #%hi(_init)
3499 + lea.1 d3, %lo(_init)(a3)
3500 +#endif
3501 +
3502 + /*
3503 + * Load pointer to _fini into d4
3504 + */
3505 +#ifdef __UBICOM32_FDPIC__
3506 + movei d4, #%got_funcdesc_lo(_fini)
3507 + move.4 d4, (a0, d4)
3508 +#else
3509 + moveai a3, #%hi(_fini)
3510 + lea.1 d4, %lo(_fini)(a3)
3511 +#endif
3512 +
3513 +#else /* !__UCLIBC_CTOR_DTOR__ */
3514 + move.4 d3, #0 ; _init
3515 + move.4 d4, #0 ; _fini
3516 +#endif
3517 +
3518 +#ifdef __UBICOM32_FDPIC__
3519 + move.4 d5, a1 ; ldso _fini funcdesc (see dl-startup.h)
3520 +#else
3521 + movei d5, #0 ; rtld_fini (not used)
3522 +#endif
3523 +
3524 + move.4 d6, sp ; Stack End.
3525 +
3526 + /* Call the user's main function, and exit with its value. But
3527 + let the libc call main. */
3528 +#ifdef __UBICOM32_FDPIC__
3529 + call a5, __uClibc_main
3530 +#else
3531 + moveai a5, #%hi(__uClibc_main)
3532 + calli a5, %lo(__uClibc_main)(a5)
3533 +#endif
3534 +
3535 + bkpt #-1 ; Crash if somehow `exit' does return.
3536 --- /dev/null
3537 +++ b/libc/sysdeps/linux/ubicom32/crti.S
3538 @@ -0,0 +1,54 @@
3539 +/* Specialized code needed to support construction and destruction of
3540 + file-scope objects in C++ and Java code, and to support exception handling.
3541 + Copyright (C) 1999 Free Software Foundation, Inc.
3542 + Contributed by Charles-Antoine Gauthier (charles.gauthier@iit.nrc.ca).
3543 +
3544 +This file is part of GCC.
3545 +
3546 +GCC is free software; you can redistribute it and/or modify
3547 +it under the terms of the GNU General Public License as published by
3548 +the Free Software Foundation; either version 2, or (at your option)
3549 +any later version.
3550 +
3551 +GCC is distributed in the hope that it will be useful,
3552 +but WITHOUT ANY WARRANTY; without even the implied warranty of
3553 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3554 +GNU General Public License for more details.
3555 +
3556 +You should have received a copy of the GNU General Public License
3557 +along with GCC; see the file COPYING. If not, write to
3558 +the Free Software Foundation, 59 Temple Place - Suite 330,
3559 +Boston, MA 02111-1307, USA. */
3560 +
3561 +/* As a special exception, if you link this library with files
3562 + compiled with GCC to produce an executable, this does not cause
3563 + the resulting executable to be covered by the GNU General Public License.
3564 + This exception does not however invalidate any other reasons why
3565 + the executable file might be covered by the GNU General Public License. */
3566 +
3567 +/*
3568 + * This file just supplies function prologues for the .init and .fini
3569 + * sections. It is linked in before crtbegin.o.
3570 + */
3571 + .file "crti.o"
3572 + .ident "GNU C crti.o"
3573 +
3574 + .section .init
3575 + .align 2
3576 + .globl _init
3577 + .type _init, @function
3578 +_init:
3579 + move.4 -4(sp)++, a5
3580 +#ifdef __UBICOM32_FDPIC__
3581 + move.4 -4(sp)++, a0
3582 +#endif
3583 +
3584 + .section .fini
3585 + .align 2
3586 + .globl _fini
3587 + .type _fini, @function
3588 +_fini:
3589 + move.4 -4(sp)++, a5
3590 +#ifdef __UBICOM32_FDPIC__
3591 + move.4 -4(sp)++, a0
3592 +#endif
3593 --- /dev/null
3594 +++ b/libc/sysdeps/linux/ubicom32/crtn.S
3595 @@ -0,0 +1,47 @@
3596 +/* Specialized code needed to support construction and destruction of
3597 + file-scope objects in C++ and Java code, and to support exception handling.
3598 + Copyright (C) 1999 Free Software Foundation, Inc.
3599 + Contributed by Charles-Antoine Gauthier (charles.gauthier@iit.nrc.ca).
3600 +
3601 +This file is part of GCC.
3602 +
3603 +GCC is free software; you can redistribute it and/or modify
3604 +it under the terms of the GNU General Public License as published by
3605 +the Free Software Foundation; either version 2, or (at your option)
3606 +any later version.
3607 +
3608 +GCC is distributed in the hope that it will be useful,
3609 +but WITHOUT ANY WARRANTY; without even the implied warranty of
3610 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3611 +GNU General Public License for more details.
3612 +
3613 +You should have received a copy of the GNU General Public License
3614 +along with GCC; see the file COPYING. If not, write to
3615 +the Free Software Foundation, 59 Temple Place - Suite 330,
3616 +Boston, MA 02111-1307, USA. */
3617 +
3618 +/* As a special exception, if you link this library with files
3619 + compiled with GCC to produce an executable, this does not cause
3620 + the resulting executable to be covered by the GNU General Public License.
3621 + This exception does not however invalidate any other reasons why
3622 + the executable file might be covered by the GNU General Public License. */
3623 +
3624 +/*
3625 + * This file supplies function epilogues for the .init and .fini sections.
3626 + * It is linked in after all other files.
3627 + */
3628 +
3629 + .file "crtn.o"
3630 + .ident "GNU C crtn.o"
3631 +
3632 + .section .init
3633 +#ifdef __UBICOM32_FDPIC__
3634 + move.4 a0, (sp)4++
3635 +#endif
3636 + ret (sp)4++
3637 +
3638 + .section .fini
3639 +#ifdef __UBICOM32_FDPIC__
3640 + move.4 a0, (sp)4++
3641 +#endif
3642 + ret (sp)4++
3643 --- /dev/null
3644 +++ b/libc/sysdeps/linux/ubicom32/crtreloc.c
3645 @@ -0,0 +1,145 @@
3646 +/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
3647 + written by Alexandre Oliva <aoliva@redhat.com>
3648 +This file is part of the GNU C Library.
3649 +
3650 +The GNU C Library is free software; you can redistribute it and/or
3651 +modify it under the terms of the GNU Lesser General Public License as
3652 +published by the Free Software Foundation; either version 2.1 of the
3653 +License, or (at your option) any later version.
3654 +
3655 +In addition to the permissions in the GNU Lesser General Public
3656 +License, the Free Software Foundation gives you unlimited
3657 +permission to link the compiled version of this file with other
3658 +programs, and to distribute those programs without any restriction
3659 +coming from the use of this file. (The GNU Lesser General Public
3660 +License restrictions do apply in other respects; for example, they
3661 +cover modification of the file, and distribution when not linked
3662 +into another program.)
3663 +
3664 +The GNU C Library is distributed in the hope that it will be useful,
3665 +but WITHOUT ANY WARRANTY; without even the implied warranty of
3666 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3667 +Library General Public License for more details.
3668 +
3669 +You should have received a copy of the GNU Lesser General Public
3670 +License along with the GNU C Library; see the file COPYING.LIB. If
3671 +not, write to the Free Software Foundation, Inc., 675 Mass Ave,
3672 +Cambridge, MA 02139, USA. */
3673 +
3674 +#ifdef __UBICOM32_FDPIC__
3675 +
3676 +#include <sys/types.h>
3677 +#include <link.h>
3678 +
3679 +/* This file is to be compiled into crt object files, to enable
3680 + executables to easily self-relocate. */
3681 +
3682 +union word {
3683 + char c[4];
3684 + void *v;
3685 +};
3686 +
3687 +/* Compute the runtime address of pointer in the range [p,e), and then
3688 + map the pointer pointed by it. */
3689 +static __always_inline void ***
3690 +reloc_range_indirect (void ***p, void ***e,
3691 + const struct elf32_fdpic_loadmap *map)
3692 +{
3693 + while (p < e)
3694 + {
3695 + if (*p != (void **)-1)
3696 + {
3697 + void *ptr = __reloc_pointer (*p, map);
3698 + if (ptr != (void *)-1)
3699 + {
3700 + void *pt;
3701 + if ((long)ptr & 3)
3702 + {
3703 + unsigned char *c = ptr;
3704 + int i;
3705 + unsigned long v = 0;
3706 + for (i = 0; i < 4; i++)
3707 + v |= c[i] << 8 * i;
3708 + pt = (void *)v;
3709 + }
3710 + else
3711 + pt = *(void**)ptr;
3712 + pt = __reloc_pointer (pt, map);
3713 + if ((long)ptr & 3)
3714 + {
3715 + unsigned char *c = ptr;
3716 + int i;
3717 + unsigned long v = (unsigned long)pt;
3718 + for (i = 0; i < 4; i++, v >>= 8)
3719 + c[i] = v;
3720 + }
3721 + else
3722 + *(void**)ptr = pt;
3723 + }
3724 + }
3725 + p++;
3726 + }
3727 + return p;
3728 +}
3729 +
3730 +/* Call __reloc_range_indirect for the given range except for the last
3731 + entry, whose contents are only relocated. It's expected to hold
3732 + the GOT value. */
3733 +void* attribute_hidden
3734 +__self_reloc (const struct elf32_fdpic_loadmap *map,
3735 + void ***p, void ***e)
3736 +{
3737 + p = reloc_range_indirect (p, e-1, map);
3738 +
3739 + if (p >= e)
3740 + return (void*)-1;
3741 +
3742 + return __reloc_pointer (*p, map);
3743 +}
3744 +
3745 +#if 0
3746 +/* These are other functions that might be useful, but that we don't
3747 + need. */
3748 +
3749 +/* Remap pointers in [p,e). */
3750 +static __always_inline void**
3751 +reloc_range (void **p, void **e,
3752 + const struct elf32_fdpic_loadmap *map)
3753 +{
3754 + while (p < e)
3755 + {
3756 + *p = __reloc_pointer (*p, map);
3757 + p++;
3758 + }
3759 + return p;
3760 +}
3761 +
3762 +/* Remap p, adjust e by the same offset, then map the pointers in the
3763 + range determined by them. */
3764 +void attribute_hidden
3765 +__reloc_range (const struct elf32_fdpic_loadmap *map,
3766 + void **p, void **e)
3767 +{
3768 + void **old = p;
3769 +
3770 + p = __reloc_pointer (p, map);
3771 + e += p - old;
3772 + reloc_range (p, e, map);
3773 +}
3774 +
3775 +/* Remap p, adjust e by the same offset, then map pointers referenced
3776 + by the (unadjusted) pointers in the range. Return the relocated
3777 + value of the last pointer in the range. */
3778 +void* attribute_hidden
3779 +__reloc_range_indirect (const struct elf32_fdpic_loadmap *map,
3780 + void ***p, void ***e)
3781 +{
3782 + void ***old = p;
3783 +
3784 + p = __reloc_pointer (p, map);
3785 + e += p - old;
3786 + return reloc_range_indirect (p, e, map);
3787 +}
3788 +#endif
3789 +
3790 +#endif /* __UBICOM32_FDPIC__ */
3791 --- /dev/null
3792 +++ b/libc/sysdeps/linux/ubicom32/setjmp.S
3793 @@ -0,0 +1,72 @@
3794 +/* Setjmp for Ubicom32 */
3795 + .text
3796 + .global _setjmp
3797 + .type _setjmp,@function
3798 +_setjmp:
3799 + movea a3, d0 ; A3 now holds the jmp buf that was passed in.
3800 + move.4 (a3)4++, d10
3801 + move.4 (a3)4++, d11
3802 + move.4 (a3)4++, d12
3803 + move.4 (a3)4++, d13
3804 + move.4 (a3)4++, a1
3805 + move.4 (a3)4++, a2
3806 + move.4 (a3)4++, a5
3807 + move.4 (a3)4++, a6
3808 + move.4 (a3)4++, a7
3809 + move.4 d0, #0
3810 +
3811 + calli a5, 0(a5)
3812 + .size _setjmp, . - _setjmp
3813 +
3814 +/*
3815 + * __sigsetjmp for Ubicom32
3816 + * d0 holds sigjmp_buf and d1 holds the savemask. We will save the frame and then just call __sigjmp_save to do the mask save.
3817 + */
3818 + .global __sigsetjmp
3819 + .type __sigsetjmp,@function
3820 +__sigsetjmp:
3821 + movea a3, d0 ; A3 now holds the jmp buf that was passed in.
3822 + move.4 (a3)4++, d10
3823 + move.4 (a3)4++, d11
3824 + move.4 (a3)4++, d12
3825 + move.4 (a3)4++, d13
3826 + move.4 (a3)4++, a1
3827 + move.4 (a3)4++, a2
3828 + move.4 (a3)4++, a5
3829 + move.4 (a3)4++, a6
3830 + move.4 (a3)4++, a7
3831 +
3832 + ;; The frame has been saved. Call _sigjmp_save to get sigmask saved. a5 still has the return address and it will go back to that.
3833 +#if defined(__UBICOM32_FDPIC__)
3834 + call a3, __sigjmp_save
3835 +#else
3836 + moveai a3, #%hi(__sigjmp_save)
3837 + calli a3, %lo(__sigjmp_save)(a3)
3838 +#endif
3839 + .size __sigjmp_save, . - __sigjmp_save
3840 +
3841 + .global __longjmp
3842 + .type __longjmp,@function
3843 +__longjmp:
3844 + movea a3, d0 ; A3 now holds the jmp buf that was passed in.
3845 + move.4 d10, (a3)4++
3846 + move.4 d11, (a3)4++
3847 + move.4 d12, (a3)4++
3848 + move.4 d13, (a3)4++
3849 + move.4 a1 , (a3)4++
3850 + move.4 a2 , (a3)4++
3851 + move.4 a5 , (a3)4++
3852 + move.4 a6 , (a3)4++
3853 + move.4 a7 , (a3)4++
3854 +
3855 + sub.4 #0, #0, d1 ; Test if d1 is zero. If it is we have to return 1 other wise return content of d1
3856 + jmpeq.t 2f
3857 + move.4 d0, d1 ; d1 is non zero load it into d0
3858 + jmpt.t 3f
3859 +
3860 +2: move.4 d0, #1
3861 +3: calli a5, 0(a5)
3862 + .size __longjmp, . - __longjmp
3863 + .global __GI___longjmp
3864 + .hidden __GI___longjmp
3865 + .set __GI___longjmp,__longjmp
3866 --- /dev/null
3867 +++ b/libc/sysdeps/linux/ubicom32/sys/procfs.h
3868 @@ -0,0 +1,122 @@
3869 +/* Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
3870 + This file is part of the GNU C Library.
3871 +
3872 + The GNU C Library is free software; you can redistribute it and/or
3873 + modify it under the terms of the GNU Lesser General Public
3874 + License as published by the Free Software Foundation; either
3875 + version 2.1 of the License, or (at your option) any later version.
3876 +
3877 + The GNU C Library is distributed in the hope that it will be useful,
3878 + but WITHOUT ANY WARRANTY; without even the implied warranty of
3879 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3880 + Lesser General Public License for more details.
3881 +
3882 + You should have received a copy of the GNU Lesser General Public
3883 + License along with the GNU C Library; if not, write to the Free
3884 + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
3885 + 02111-1307 USA. */
3886 +
3887 +#ifndef _SYS_PROCFS_H
3888 +#define _SYS_PROCFS_H 1
3889 +
3890 +/* This is somehow modelled after the file of the same name on SysVr4
3891 + systems. It provides a definition of the core file format for ELF
3892 + used on Linux. */
3893 +
3894 +#include <features.h>
3895 +#include <signal.h>
3896 +#include <sys/time.h>
3897 +#include <sys/types.h>
3898 +#include <sys/ucontext.h>
3899 +#include <bits/wordsize.h>
3900 +
3901 +__BEGIN_DECLS
3902 +
3903 +#define ELF_NGREG 38
3904 +
3905 +typedef struct
3906 + {
3907 + union
3908 + {
3909 + unsigned long pr_regs[32];
3910 + double pr_dregs[16];
3911 + } pr_fr;
3912 + unsigned long __unused;
3913 + unsigned long pr_fsr;
3914 + unsigned char pr_qcnt;
3915 + unsigned char pr_q_entrysize;
3916 + unsigned char pr_en;
3917 + unsigned int pr_q[64];
3918 + } elf_fpregset_t;
3919 +
3920 +typedef unsigned long elf_greg_t;
3921 +typedef elf_greg_t elf_gregset_t[ELF_NGREG];
3922 +
3923 +struct elf_siginfo
3924 + {
3925 + int si_signo; /* Signal number. */
3926 + int si_code; /* Extra code. */
3927 + int si_errno; /* Errno. */
3928 + };
3929 +
3930 +/* Definitions to generate Intel SVR4-like core files. These mostly
3931 + have the same names as the SVR4 types with "elf_" tacked on the
3932 + front to prevent clashes with linux definitions, and the typedef
3933 + forms have been avoided. This is mostly like the SVR4 structure,
3934 + but more Linuxy, with things that Linux does not support and which
3935 + gdb doesn't really use excluded. Fields present but not used are
3936 + marked with "XXX". */
3937 +struct elf_prstatus
3938 + {
3939 + struct elf_siginfo pr_info; /* Info associated with signal. */
3940 + short int pr_cursig; /* Current signal. */
3941 + unsigned long int pr_sigpend; /* Set of pending signals. */
3942 + unsigned long int pr_sighold; /* Set of held signals. */
3943 + __pid_t pr_pid;
3944 + __pid_t pr_ppid;
3945 + __pid_t pr_pgrp;
3946 + __pid_t pr_sid;
3947 + struct timeval pr_utime; /* User time. */
3948 + struct timeval pr_stime; /* System time. */
3949 + struct timeval pr_cutime; /* Cumulative user time. */
3950 + struct timeval pr_cstime; /* Cumulative system time. */
3951 + elf_gregset_t pr_reg; /* GP registers. */
3952 + int pr_fpvalid; /* True if math copro being used. */
3953 + };
3954 +
3955 +
3956 +#define ELF_PRARGSZ (80) /* Number of chars for args */
3957 +
3958 +struct elf_prpsinfo
3959 + {
3960 + char pr_state; /* Numeric process state. */
3961 + char pr_sname; /* Char for pr_state. */
3962 + char pr_zomb; /* Zombie. */
3963 + char pr_nice; /* Nice val. */
3964 + unsigned long int pr_flag; /* Flags. */
3965 + unsigned short int pr_uid;
3966 + unsigned short int pr_gid;
3967 + int pr_pid, pr_ppid, pr_pgrp, pr_sid;
3968 + /* Lots missing */
3969 + char pr_fname[16]; /* Filename of executable. */
3970 + char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list. */
3971 + };
3972 +
3973 +/* Addresses. */
3974 +typedef void *psaddr_t;
3975 +
3976 +/* Register sets. Linux has different names. */
3977 +typedef elf_gregset_t prgregset_t;
3978 +typedef elf_fpregset_t prfpregset_t;
3979 +
3980 +/* We don't have any differences between processes and threads,
3981 + therefore have only one PID type. */
3982 +typedef __pid_t lwpid_t;
3983 +
3984 +
3985 +typedef struct elf_prstatus prstatus_t;
3986 +typedef struct elf_prpsinfo prpsinfo_t;
3987 +
3988 +__END_DECLS
3989 +
3990 +#endif /* sys/procfs.h */
3991 --- /dev/null
3992 +++ b/libc/sysdeps/linux/ubicom32/sys/ucontext.h
3993 @@ -0,0 +1,104 @@
3994 +/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
3995 + This file is part of the GNU C Library.
3996 +
3997 + The GNU C Library is free software; you can redistribute it and/or
3998 + modify it under the terms of the GNU Lesser General Public
3999 + License as published by the Free Software Foundation; either
4000 + version 2.1 of the License, or (at your option) any later version.
4001 +
4002 + The GNU C Library is distributed in the hope that it will be useful,
4003 + but WITHOUT ANY WARRANTY; without even the implied warranty of
4004 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
4005 + Lesser General Public License for more details.
4006 +
4007 + You should have received a copy of the GNU Lesser General Public
4008 + License along with the GNU C Library; if not, write to the Free
4009 + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
4010 + 02111-1307 USA. */
4011 +
4012 +#ifndef _SYS_UCONTEXT_H
4013 +#define _SYS_UCONTEXT_H 1
4014 +
4015 +#include <features.h>
4016 +#include <signal.h>
4017 +/*
4018 + * Location of the users' stored registers relative to R0.
4019 + * Usage is as an index into a gregset_t array or as u.u_ar0[XX].
4020 + */
4021 +#define REG_PSR (0)
4022 +#define REG_PC (1)
4023 +#define REG_SPARE (2)
4024 +#define REG_WVALID (3)
4025 +#define REG_G1 (4)
4026 +#define REG_G2 (5)
4027 +#define REG_G3 (6)
4028 +#define REG_G4 (7)
4029 +#define REG_G5 (8)
4030 +#define REG_G6 (9)
4031 +#define REG_G7 (10)
4032 +#define REG_O0 (11)
4033 +#define REG_O1 (12)
4034 +#define REG_O2 (13)
4035 +#define REG_O3 (14)
4036 +#define REG_O4 (15)
4037 +#define REG_O5 (16)
4038 +#define REG_O6 (17)
4039 +#define REG_O7 (18)
4040 +#define REG_GLOBALS (19)
4041 +
4042 +/*
4043 + * A gregset_t is defined as an array type for compatibility with the reference
4044 + * source. This is important due to differences in the way the C language
4045 + * treats arrays and structures as parameters.
4046 + *
4047 + * Note that NGREG is really (sizeof (struct regs) / sizeof (greg_t)),
4048 + * but that the ABI defines it absolutely to be 21 (resp. 19).
4049 + */
4050 +
4051 +#define NGREG 20
4052 +typedef int greg_t;
4053 +
4054 +typedef greg_t gregset_t[NGREG];
4055 +
4056 +/*
4057 + * The following structures define how a register window can appear on the
4058 + * stack. This structure is available (when required) through the `gwins'
4059 + * field of an mcontext (nested within ucontext). NIOS_MAXWINDOW is the
4060 + * maximum number of outstanding register windows defined in the NIOS
4061 + * architecture (*not* implementation).
4062 + */
4063 +#define NIOS_MAXREGWINDOW 31 /* max windows in NIOS arch. */
4064 +struct rwindow
4065 + {
4066 + greg_t rw_local[8]; /* locals */
4067 + greg_t rw_in[8]; /* ins */
4068 + };
4069 +
4070 +#define rw_fp rw_in[6] /* frame pointer */
4071 +#define rw_rtn rw_in[7] /* return address */
4072 +
4073 +typedef struct gwindows
4074 + {
4075 + int wbcnt;
4076 + int *spbuf[NIOS_MAXREGWINDOW];
4077 + struct rwindow wbuf[NIOS_MAXREGWINDOW];
4078 + } gwindows_t;
4079 +
4080 +typedef struct
4081 + {
4082 + gregset_t gregs; /* general register set */
4083 + gwindows_t *gwins; /* POSSIBLE pointer to register windows */
4084 + } mcontext_t;
4085 +
4086 +
4087 +/* Userlevel context. */
4088 +typedef struct ucontext
4089 + {
4090 + unsigned long uc_flags;
4091 + struct ucontext *uc_link;
4092 + __sigset_t uc_sigmask;
4093 + stack_t uc_stack;
4094 + mcontext_t uc_mcontext;
4095 + } ucontext_t;
4096 +
4097 +#endif /* sys/ucontext.h */
4098 --- /dev/null
4099 +++ b/libc/sysdeps/linux/ubicom32/syscall.c
4100 @@ -0,0 +1,32 @@
4101 +/* vi: set sw=4 ts=4: */
4102 +/* syscall for ubicom32/uClibc
4103 + *
4104 + * Copyright (C) 2008 by Ubicom Inc.
4105 + * Copyright (C) 2002 by Erik Andersen <andersen@uclibc.org>
4106 + *
4107 + * This program is free software; you can redistribute it and/or modify it
4108 + * under the terms of the GNU Library General Public License as published by
4109 + * the Free Software Foundation; either version 2 of the License, or (at your
4110 + * option) any later version.
4111 + *
4112 + * This program is distributed in the hope that it will be useful, but WITHOUT
4113 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
4114 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
4115 + * for more details.
4116 + *
4117 + * You should have received a copy of the GNU Library General Public License
4118 + * along with this program; if not, write to the Free Software Foundation,
4119 + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
4120 + */
4121 +
4122 +#include <features.h>
4123 +#include <errno.h>
4124 +#include <sys/types.h>
4125 +#include <sys/syscall.h>
4126 +
4127 +extern long syscall(long sysnum, long a, long b, long c, long d, long e, long f);
4128 +long syscall(long sysnum, long a, long b, long c, long d, long e, long f)
4129 +{
4130 + int __NR_syscall_number = sysnum;
4131 + return (long) INLINE_SYSCALL(syscall_number, 6, a, b, c, d, e, f);
4132 +}
4133 --- /dev/null
4134 +++ b/libc/sysdeps/linux/ubicom32/vfork.S
4135 @@ -0,0 +1,35 @@
4136 +#include <sys/syscall.h>
4137 +
4138 + .text
4139 + .type vfork,@function
4140 + .global vfork
4141 +vfork:
4142 + move.4 -4(sp)++, a5 ; Save return address on the stack.
4143 + movei d8, #__NR_vfork
4144 + moveai a3, #%hi(0x40400000)
4145 + calli a5, 0x10(a3)
4146 +
4147 + /*
4148 + * You get here only if the syscall bombed. If things had worked out the
4149 + * parent and child would have both returned to the instruction after
4150 + * the vfork call.
4151 + */
4152 + move.4 a5, (sp)4++ ; Pop the return address off the stack.
4153 + movei d1, #-125
4154 + sub.4 #0, d0, d1
4155 + jmplt.t 1f
4156 +
4157 + ;; We have an error.
4158 + sub.4 d0, #0, d0 ; d0 = -res. Call __set_errno with that.
4159 +#if defined(__UBICOM32_FDPIC__)
4160 + call a3, __syscall_error
4161 +#else
4162 + moveai a3, #%hi(__syscall_error)
4163 + calli a3, %lo(__syscall_error)(a3) ; __syscall_error will return -1 and not come back here.
4164 +#endif
4165 +1:
4166 + calli a5, 0(a5)
4167 + .size vfork, . - vfork
4168 + .global __GI_vfork
4169 + .hidden __GI_vfork
4170 + .set __GI_vfork,vfork
4171 --- a/libpthread/linuxthreads.old/pthread.c
4172 +++ b/libpthread/linuxthreads.old/pthread.c
4173 @@ -391,6 +391,10 @@ void __pthread_initialize_minimal(void)
4174 #endif
4175
4176 __libc_multiple_threads_ptr = __libc_pthread_init (ptr_pthread_functions);
4177 +#ifndef __ARCH_USE_MMU__
4178 + __pthread_initial_thread_tos =
4179 + (char *)(((long)CURRENT_STACK_FRAME + getpagesize()) & ~(getpagesize() - 1));
4180 +#endif /* __ARCH_USE_MMU__ */
4181 }
4182
4183
4184 @@ -467,7 +471,8 @@ static void pthread_initialize(void)
4185 * for a few more details.
4186 */
4187 __pthread_initial_thread_mid = CURRENT_STACK_FRAME;
4188 - __pthread_initial_thread_tos = (char *) -1;
4189 + if (__pthread_initial_thread_tos == NULL)
4190 + __pthread_initial_thread_tos = (char *) -1;
4191 __pthread_initial_thread_bos = (char *) 1; /* set it non-zero so we know we have been here */
4192 PDEBUG("initial thread stack bounds: bos=%p, tos=%p\n",
4193 __pthread_initial_thread_bos, __pthread_initial_thread_tos);
4194 --- /dev/null
4195 +++ b/libpthread/linuxthreads.old/sysdeps/ubicom32/pt-machine.h
4196 @@ -0,0 +1,68 @@
4197 +/* Machine-dependent pthreads configuration and inline functions.
4198 +
4199 + Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004
4200 + Free Software Foundation, Inc.
4201 + This file is part of the GNU C Library.
4202 + Contributed by Ralf Baechle <ralf@gnu.org>.
4203 + Based on the Alpha version by Richard Henderson <rth@tamu.edu>.
4204 +
4205 + The GNU C Library is free software; you can redistribute it and/or
4206 + modify it under the terms of the GNU Lesser General Public License as
4207 + published by the Free Software Foundation; either version 2.1 of the
4208 + License, or (at your option) any later version.
4209 +
4210 + The GNU C Library is distributed in the hope that it will be useful,
4211 + but WITHOUT ANY WARRANTY; without even the implied warranty of
4212 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
4213 + Lesser General Public License for more details.
4214 +
4215 + You should have received a copy of the GNU Lesser General Public
4216 + License along with the GNU C Library; see the file COPYING.LIB. If
4217 + not, write to the Free Software Foundation, Inc.,
4218 + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
4219 +
4220 +#ifndef _PT_MACHINE_H
4221 +#define _PT_MACHINE_H 1
4222 +
4223 +#include <features.h>
4224 +
4225 +/*
4226 + * XXX try to make this inline
4227 + */
4228 +extern long int testandset (int *spinlock);
4229 +
4230 +#ifndef PT_EI
4231 +#define PT_EI
4232 +#else
4233 +/* Spinlock implementation; required. */
4234 +
4235 +/*
4236 + * testandset() is the basis for the pthread spin lock.
4237 + *
4238 + * This implementation only requires that we 'set' the state of *spinlock. As
4239 + * bset is allows us to atomically 'testandset' a single bit define our 'set' is
4240 + * such that we will set bit 0 (ignoring all other bits, which should also be
4241 + * zero).
4242 + * Return value of 1 implies that the bit was already set and is still
4243 + * set.
4244 + * Return value of 0 implies that the bit was not previously set but it
4245 + * now is.
4246 + */
4247 +long int
4248 +testandset (int *spinlock)
4249 +{
4250 + int ret;
4251 + __asm__ volatile (
4252 + " move.4 %0, #0 \n\t" /* Assume that the bit is not currently set */
4253 + " bset %1, %1, #0 \n\t" /* Attempt to 'set' bit 0 */
4254 + " jmpeq.t 1f \n\t"
4255 + " move.4 %0, #1 \n\t" /* Bit was already set, so return 1 */
4256 + " 1: \n\t"
4257 + : "=r"(ret), "+U4"(*spinlock)
4258 + :
4259 + : "memory", "cc"
4260 + );
4261 + return ret;
4262 +}
4263 +#endif
4264 +#endif /* pt-machine.h */
4265 --- /dev/null
4266 +++ b/libpthread/linuxthreads.old/sysdeps/ubicom32/tls.h
4267 @@ -0,0 +1,26 @@
4268 +/* Definitions for thread-local data handling. linuxthreads/MIPS version.
4269 + Copyright (C) 2005 Free Software Foundation, Inc.
4270 + This file is part of the GNU C Library.
4271 +
4272 + The GNU C Library is free software; you can redistribute it and/or
4273 + modify it under the terms of the GNU Lesser General Public
4274 + License as published by the Free Software Foundation; either
4275 + version 2.1 of the License, or (at your option) any later version.
4276 +
4277 + The GNU C Library is distributed in the hope that it will be useful,
4278 + but WITHOUT ANY WARRANTY; without even the implied warranty of
4279 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
4280 + Lesser General Public License for more details.
4281 +
4282 + You should have received a copy of the GNU Lesser General Public
4283 + License along with the GNU C Library; if not, write to the Free
4284 + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
4285 + 02111-1307 USA. */
4286 +
4287 +#ifndef _TLS_H
4288 +#define _TLS_H
4289 +#ifdef HAVE_TLS_SUPPORT
4290 +#warning no tls support
4291 +#undef USE_TLS
4292 +#endif
4293 +#endif /* tls.h */
4294 --- /dev/null
4295 +++ b/libc/sysdeps/linux/ubicom32/sys/user.h
4296 @@ -0,0 +1,40 @@
4297 +/* Copyright (C) 1998 Free Software Foundation, Inc.
4298 + This file is part of the GNU C Library.
4299 +
4300 + The GNU C Library is free software; you can redistribute it and/or
4301 + modify it under the terms of the GNU Lesser General Public
4302 + License as published by the Free Software Foundation; either
4303 + version 2.1 of the License, or (at your option) any later version.
4304 +
4305 + The GNU C Library is distributed in the hope that it will be useful,
4306 + but WITHOUT ANY WARRANTY; without even the implied warranty of
4307 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
4308 + Lesser General Public License for more details.
4309 +
4310 + You should have received a copy of the GNU Lesser General Public
4311 + License along with the GNU C Library; if not, write to the Free
4312 + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
4313 + 02111-1307 USA. */
4314 +
4315 +#ifndef _SYS_USER_H
4316 +#define _SYS_USER_H 1
4317 +
4318 +#include <features.h>
4319 +
4320 +#include <asm/ptrace.h>
4321 +
4322 +struct user {
4323 + struct pt_regs regs; /* entire machine state */
4324 + size_t u_tsize; /* text size (pages) */
4325 + size_t u_dsize; /* data size (pages) */
4326 + size_t u_ssize; /* stack size (pages) */
4327 + unsigned long start_code; /* text starting address */
4328 + unsigned long start_data; /* data starting address */
4329 + unsigned long start_stack; /* stack starting address */
4330 + long int signal; /* signal causing core dump */
4331 + struct regs * u_ar0; /* help gdb find registers */
4332 + unsigned long magic; /* identifies a core file */
4333 + char u_comm[32]; /* user command name */
4334 +};
4335 +
4336 +#endif /* _SYS_USER_H */
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