target/linux/ubicom32/patches-2.6.32/120-libgcc_func.patch

   1 --- a/arch/ubicom32/Makefile
   2 +++ b/arch/ubicom32/Makefile
   3 @@ -60,9 +60,6 @@ cflags-$(CONFIG_UBICOM32_V4)          := -march=
   4  ldflags-$(CONFIG_LINKER_RELAXATION)    := --relax
   5  LDFLAGS_vmlinux := $(ldflags-y)
   6
   7 -GCCLIBDIR := $(dir $(shell $(CC) $(cflags-y) -print-libgcc-file-name))
   8 -GCC_LIBS := $(GCCLIBDIR)/libgcc.a
   9 -
  10  KBUILD_CFLAGS += $(cflags-y) -ffunction-sections
  11  KBUILD_AFLAGS += $(cflags-y)
  12
  13 @@ -84,7 +81,6 @@ core-y        += arch/$(ARCH)/kernel/ \
  14  drivers-$(CONFIG_OPROFILE)     += arch/ubicom32/oprofile/
  15
  16  libs-y += arch/$(ARCH)/lib/
  17 -libs-y += $(GCC_LIBS)
  18
  19  archclean:
  20
  21 --- a/arch/ubicom32/lib/Makefile
  22 +++ b/arch/ubicom32/lib/Makefile
  23 @@ -30,3 +30,4 @@
  24  #
  25
  26  lib-y  := checksum.o delay.o mem_ubicom32.o
  27 +lib-y  += ashldi3.o ashrdi3.o divmod.o lshrdi3.o muldi3.o
  28 --- /dev/null
  29 +++ b/arch/ubicom32/lib/ashldi3.c
  30 @@ -0,0 +1,62 @@
  31 +/* ashrdi3.c extracted from gcc-2.95.2/libgcc2.c which is: */
  32 +/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
  33 +
  34 +This file is part of GNU CC.
  35 +
  36 +GNU CC is free software; you can redistribute it and/or modify
  37 +it under the terms of the GNU General Public License as published by
  38 +the Free Software Foundation; either version 2, or (at your option)
  39 +any later version.
  40 +
  41 +GNU CC is distributed in the hope that it will be useful,
  42 +but WITHOUT ANY WARRANTY; without even the implied warranty of
  43 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  44 +GNU General Public License for more details.
  45 +
  46 +You should have received a copy of the GNU General Public License
  47 +along with GNU CC; see the file COPYING.  If not, write to
  48 +the Free Software Foundation, 59 Temple Place - Suite 330,
  49 +Boston, MA 02111-1307, USA.  */
  50 +
  51 +#define BITS_PER_UNIT 8
  52 +
  53 +typedef                 int SItype     __attribute__ ((mode (SI)));
  54 +typedef unsigned int USItype   __attribute__ ((mode (SI)));
  55 +typedef                 int DItype     __attribute__ ((mode (DI)));
  56 +typedef int word_type __attribute__ ((mode (__word__)));
  57 +
  58 +struct DIstruct {SItype high, low;};
  59 +
  60 +typedef union
  61 +{
  62 +  struct DIstruct s;
  63 +  DItype ll;
  64 +} DIunion;
  65 +
  66 +DItype
  67 +__ashldi3 (DItype u, word_type b)
  68 +{
  69 +  DIunion w;
  70 +  word_type bm;
  71 +  DIunion uu;
  72 +
  73 +  if (b == 0)
  74 +    return u;
  75 +
  76 +  uu.ll = u;
  77 +
  78 +  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
  79 +  if (bm <= 0)
  80 +    {
  81 +      w.s.low = 0;
  82 +      w.s.high = (USItype)uu.s.low << -bm;
  83 +    }
  84 +  else
  85 +    {
  86 +      USItype carries = (USItype)uu.s.low >> bm;
  87 +      w.s.low = (USItype)uu.s.low << b;
  88 +      w.s.high = ((USItype)uu.s.high << b) | carries;
  89 +    }
  90 +
  91 +  return w.ll;
  92 +}
  93 --- /dev/null
  94 +++ b/arch/ubicom32/lib/ashrdi3.c
  95 @@ -0,0 +1,63 @@
  96 +/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
  97 +/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
  98 +
  99 +This file is part of GNU CC.
 100 +
 101 +GNU CC is free software; you can redistribute it and/or modify
 102 +it under the terms of the GNU General Public License as published by
 103 +the Free Software Foundation; either version 2, or (at your option)
 104 +any later version.
 105 +
 106 +GNU CC is distributed in the hope that it will be useful,
 107 +but WITHOUT ANY WARRANTY; without even the implied warranty of
 108 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 109 +GNU General Public License for more details.
 110 +
 111 +You should have received a copy of the GNU General Public License
 112 +along with GNU CC; see the file COPYING.  If not, write to
 113 +the Free Software Foundation, 59 Temple Place - Suite 330,
 114 +Boston, MA 02111-1307, USA.  */
 115 +
 116 +#define BITS_PER_UNIT 8
 117 +
 118 +typedef                 int SItype     __attribute__ ((mode (SI)));
 119 +typedef unsigned int USItype   __attribute__ ((mode (SI)));
 120 +typedef                 int DItype     __attribute__ ((mode (DI)));
 121 +typedef int word_type __attribute__ ((mode (__word__)));
 122 +
 123 +struct DIstruct {SItype high, low;};
 124 +
 125 +typedef union
 126 +{
 127 +  struct DIstruct s;
 128 +  DItype ll;
 129 +} DIunion;
 130 +
 131 +DItype
 132 +__ashrdi3 (DItype u, word_type b)
 133 +{
 134 +  DIunion w;
 135 +  word_type bm;
 136 +  DIunion uu;
 137 +
 138 +  if (b == 0)
 139 +    return u;
 140 +
 141 +  uu.ll = u;
 142 +
 143 +  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
 144 +  if (bm <= 0)
 145 +    {
 146 +      /* w.s.high = 1..1 or 0..0 */
 147 +      w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1);
 148 +      w.s.low = uu.s.high >> -bm;
 149 +    }
 150 +  else
 151 +    {
 152 +      USItype carries = (USItype)uu.s.high << bm;
 153 +      w.s.high = uu.s.high >> b;
 154 +      w.s.low = ((USItype)uu.s.low >> b) | carries;
 155 +    }
 156 +
 157 +  return w.ll;
 158 +}
 159 --- /dev/null
 160 +++ b/arch/ubicom32/lib/divmod.c
 161 @@ -0,0 +1,85 @@
 162 +unsigned long
 163 +udivmodsi4(unsigned long num, unsigned long den, int modwanted)
 164 +{
 165 +  unsigned long bit = 1;
 166 +  unsigned long res = 0;
 167 +
 168 +  while (den < num && bit && !(den & (1L<<31)))
 169 +    {
 170 +      den <<=1;
 171 +      bit <<=1;
 172 +    }
 173 +  while (bit)
 174 +    {
 175 +      if (num >= den)
 176 +       {
 177 +         num -= den;
 178 +         res |= bit;
 179 +       }
 180 +      bit >>=1;
 181 +      den >>=1;
 182 +    }
 183 +  if (modwanted) return num;
 184 +  return res;
 185 +}
 186 +
 187 +long
 188 +__udivsi3 (long a, long b)
 189 +{
 190 +  return udivmodsi4 (a, b, 0);
 191 +}
 192 +
 193 +long
 194 +__umodsi3 (long a, long b)
 195 +{
 196 +  return udivmodsi4 (a, b, 1);
 197 +}
 198 +
 199 +long
 200 +__divsi3 (long a, long b)
 201 +{
 202 +  int neg = 0;
 203 +  long res;
 204 +
 205 +  if (a < 0)
 206 +    {
 207 +      a = -a;
 208 +      neg = !neg;
 209 +    }
 210 +
 211 +  if (b < 0)
 212 +    {
 213 +      b = -b;
 214 +      neg = !neg;
 215 +    }
 216 +
 217 +  res = udivmodsi4 (a, b, 0);
 218 +
 219 +  if (neg)
 220 +    res = -res;
 221 +
 222 +  return res;
 223 +}
 224 +
 225 +long
 226 +__modsi3 (long a, long b)
 227 +{
 228 +  int neg = 0;
 229 +  long res;
 230 +
 231 +  if (a < 0)
 232 +    {
 233 +      a = -a;
 234 +      neg = 1;
 235 +    }
 236 +
 237 +  if (b < 0)
 238 +    b = -b;
 239 +
 240 +  res = udivmodsi4 (a, b, 1);
 241 +
 242 +  if (neg)
 243 +    res = -res;
 244 +
 245 +  return res;
 246 +}
 247 --- /dev/null
 248 +++ b/arch/ubicom32/lib/lshrdi3.c
 249 @@ -0,0 +1,62 @@
 250 +/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
 251 +/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
 252 +
 253 +This file is part of GNU CC.
 254 +
 255 +GNU CC is free software; you can redistribute it and/or modify
 256 +it under the terms of the GNU General Public License as published by
 257 +the Free Software Foundation; either version 2, or (at your option)
 258 +any later version.
 259 +
 260 +GNU CC is distributed in the hope that it will be useful,
 261 +but WITHOUT ANY WARRANTY; without even the implied warranty of
 262 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 263 +GNU General Public License for more details.
 264 +
 265 +You should have received a copy of the GNU General Public License
 266 +along with GNU CC; see the file COPYING.  If not, write to
 267 +the Free Software Foundation, 59 Temple Place - Suite 330,
 268 +Boston, MA 02111-1307, USA.  */
 269 +
 270 +#define BITS_PER_UNIT 8
 271 +
 272 +typedef                 int SItype     __attribute__ ((mode (SI)));
 273 +typedef unsigned int USItype   __attribute__ ((mode (SI)));
 274 +typedef                 int DItype     __attribute__ ((mode (DI)));
 275 +typedef int word_type __attribute__ ((mode (__word__)));
 276 +
 277 +struct DIstruct {SItype high, low;};
 278 +
 279 +typedef union
 280 +{
 281 +  struct DIstruct s;
 282 +  DItype ll;
 283 +} DIunion;
 284 +
 285 +DItype
 286 +__lshrdi3 (DItype u, word_type b)
 287 +{
 288 +  DIunion w;
 289 +  word_type bm;
 290 +  DIunion uu;
 291 +
 292 +  if (b == 0)
 293 +    return u;
 294 +
 295 +  uu.ll = u;
 296 +
 297 +  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
 298 +  if (bm <= 0)
 299 +    {
 300 +      w.s.high = 0;
 301 +      w.s.low = (USItype)uu.s.high >> -bm;
 302 +    }
 303 +  else
 304 +    {
 305 +      USItype carries = (USItype)uu.s.high << bm;
 306 +      w.s.high = (USItype)uu.s.high >> b;
 307 +      w.s.low = ((USItype)uu.s.low >> b) | carries;
 308 +    }
 309 +
 310 +  return w.ll;
 311 +}
 312 --- /dev/null
 313 +++ b/arch/ubicom32/lib/muldi3.c
 314 @@ -0,0 +1,87 @@
 315 +/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
 316 +                          gcc-2.7.2.3/longlong.h which is: */
 317 +/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
 318 +
 319 +This file is part of GNU CC.
 320 +
 321 +GNU CC is free software; you can redistribute it and/or modify
 322 +it under the terms of the GNU General Public License as published by
 323 +the Free Software Foundation; either version 2, or (at your option)
 324 +any later version.
 325 +
 326 +GNU CC is distributed in the hope that it will be useful,
 327 +but WITHOUT ANY WARRANTY; without even the implied warranty of
 328 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 329 +GNU General Public License for more details.
 330 +
 331 +You should have received a copy of the GNU General Public License
 332 +along with GNU CC; see the file COPYING.  If not, write to
 333 +the Free Software Foundation, 59 Temple Place - Suite 330,
 334 +Boston, MA 02111-1307, USA.  */
 335 +
 336 +#define UWtype          USItype
 337 +#define UHWtype         USItype
 338 +#define W_TYPE_SIZE     32
 339 +#define __BITS4 (W_TYPE_SIZE / 4)
 340 +#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
 341 +#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
 342 +#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
 343 +
 344 +#define umul_ppmm(w1, w0, u, v)                                         \
 345 +  do {                                                                  \
 346 +    UWtype __x0, __x1, __x2, __x3;                                      \
 347 +    UHWtype __ul, __vl, __uh, __vh;                                     \
 348 +                                                                        \
 349 +    __ul = __ll_lowpart (u);                                            \
 350 +    __uh = __ll_highpart (u);                                           \
 351 +    __vl = __ll_lowpart (v);                                            \
 352 +    __vh = __ll_highpart (v);                                           \
 353 +                                                                        \
 354 +    __x0 = (UWtype) __ul * __vl;                                        \
 355 +    __x1 = (UWtype) __ul * __vh;                                        \
 356 +    __x2 = (UWtype) __uh * __vl;                                        \
 357 +    __x3 = (UWtype) __uh * __vh;                                        \
 358 +                                                                        \
 359 +    __x1 += __ll_highpart (__x0);/* this can't give carry */            \
 360 +    __x1 += __x2;               /* but this indeed can */               \
 361 +    if (__x1 < __x2)            /* did we get it? */                    \
 362 +      __x3 += __ll_B;           /* yes, add it in the proper pos.  */   \
 363 +                                                                        \
 364 +    (w1) = __x3 + __ll_highpart (__x1);                                 \
 365 +    (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0);          \
 366 +  } while (0)
 367 +
 368 +
 369 +#define __umulsidi3(u, v) \
 370 +  ({DIunion __w;                                                       \
 371 +    umul_ppmm (__w.s.high, __w.s.low, u, v);                           \
 372 +    __w.ll; })
 373 +
 374 +typedef                 int SItype     __attribute__ ((mode (SI)));
 375 +typedef unsigned int USItype   __attribute__ ((mode (SI)));
 376 +typedef                 int DItype     __attribute__ ((mode (DI)));
 377 +typedef int word_type __attribute__ ((mode (__word__)));
 378 +
 379 +struct DIstruct {SItype high, low;};
 380 +
 381 +typedef union
 382 +{
 383 +  struct DIstruct s;
 384 +  DItype ll;
 385 +} DIunion;
 386 +
 387 +DItype
 388 +__muldi3 (DItype u, DItype v)
 389 +{
 390 +  DIunion w;
 391 +  DIunion uu, vv;
 392 +
 393 +  uu.ll = u,
 394 +  vv.ll = v;
 395 +
 396 +  w.ll = __umulsidi3 (uu.s.low, vv.s.low);
 397 +  w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
 398 +              + (USItype) uu.s.high * (USItype) vv.s.low);
 399 +
 400 +  return w.ll;
 401 +}
 402 --- a/arch/ubicom32/kernel/ubicom32_ksyms.c
 403 +++ b/arch/ubicom32/kernel/ubicom32_ksyms.c
 404 @@ -72,7 +72,6 @@ EXPORT_SYMBOL(memmove);
 405  extern void __ashldi3(void);
 406  extern void __ashrdi3(void);
 407  extern void __divsi3(void);
 408 -extern void __divdi3(void);
 409  extern void __lshrdi3(void);
 410  extern void __modsi3(void);
 411  extern void __muldi3(void);
 412 @@ -83,7 +82,6 @@ extern void __umodsi3(void);
 413  EXPORT_SYMBOL(__ashldi3);
 414  EXPORT_SYMBOL(__ashrdi3);
 415  EXPORT_SYMBOL(__divsi3);
 416 -EXPORT_SYMBOL(__divdi3);
 417  EXPORT_SYMBOL(__lshrdi3);
 418  EXPORT_SYMBOL(__modsi3);
 419  EXPORT_SYMBOL(__muldi3);