-diff -urN linux-2.6.30.7/arch/mips/Makefile linux-2.6.30.7.new/arch/mips/Makefile
---- linux-2.6.30.7/arch/mips/Makefile 2009-09-27 13:17:16.000000000 +0200
-+++ linux-2.6.30.7.new/arch/mips/Makefile 2009-09-15 19:46:05.000000000 +0200
-@@ -83,7 +83,7 @@
+--- a/arch/mips/Makefile
++++ b/arch/mips/Makefile
+@@ -85,7 +85,7 @@ all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64
cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
cflags-y += -msoft-float
LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
cflags-y += -ffreestanding
-diff -urN linux-2.6.30.7/arch/mips/include/asm/module.h linux-2.6.30.7.new/arch/mips/include/asm/module.h
---- linux-2.6.30.7/arch/mips/include/asm/module.h 2009-09-27 13:17:16.000000000 +0200
-+++ linux-2.6.30.7.new/arch/mips/include/asm/module.h 2009-09-15 19:46:05.000000000 +0200
-@@ -9,11 +9,6 @@
+--- a/arch/mips/include/asm/module.h
++++ b/arch/mips/include/asm/module.h
+@@ -9,11 +9,6 @@ struct mod_arch_specific {
struct list_head dbe_list;
const struct exception_table_entry *dbe_start;
const struct exception_table_entry *dbe_end;
-
-- void *plt_tbl;
-- unsigned int core_plt_offset;
-- unsigned int core_plt_size;
-- unsigned int init_plt_offset;
+- void *phys_plt_tbl;
+- void *virt_plt_tbl;
+- unsigned int phys_plt_offset;
+- unsigned int virt_plt_offset;
};
typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */
-diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/kernel/module.c
---- linux-2.6.30.7/arch/mips/kernel/module.c 2009-09-27 13:17:16.000000000 +0200
-+++ linux-2.6.30.7.new/arch/mips/kernel/module.c 2009-09-15 19:46:05.000000000 +0200
-@@ -43,116 +43,6 @@
+--- a/arch/mips/kernel/module.c
++++ b/arch/mips/kernel/module.c
+@@ -43,117 +43,6 @@ static struct mips_hi16 *mips_hi16_list;
static LIST_HEAD(dbe_list);
static DEFINE_SPINLOCK(dbe_lock);
- for (; page < end; ++page)
- __free_page(page);
-}
+-
-
void *module_alloc(unsigned long size)
{
#ifdef MODULE_START
-@@ -168,45 +58,16 @@
+@@ -169,99 +58,21 @@ void *module_alloc(unsigned long size)
return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL);
#else
- } else {
- vfree(module_region);
- }
+-}
+-
+-static void *__module_alloc(int size, bool phys)
+-{
+- void *ptr;
+-
+- if (phys)
+- ptr = kmalloc(size, GFP_KERNEL);
+- else
+- ptr = vmalloc(size);
+- return ptr;
+-}
+-
+-static void __module_free(void *ptr)
+-{
+- if (is_phys_addr(ptr))
+- kfree(ptr);
+- else
+- vfree(ptr);
+ vfree(module_region);
- /* FIXME: If module_region == mod->init_region, trim exception
- table entries. */
}
-@@ -214,24 +75,6 @@
+
int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
char *secstrings, struct module *mod)
{
- core_size = get_plt_size(hdr, sechdrs, secstrings, symindex, false);
- init_size = get_plt_size(hdr, sechdrs, secstrings, symindex, true);
-
-- mod->arch.core_plt_offset = 0;
-- mod->arch.core_plt_size = core_size;
-- mod->arch.init_plt_offset = core_size;
-- mod->arch.plt_tbl = kmalloc(core_size + init_size, GFP_KERNEL);
-- if (!mod->arch.plt_tbl)
+- mod->arch.phys_plt_offset = 0;
+- mod->arch.virt_plt_offset = 0;
+- mod->arch.phys_plt_tbl = NULL;
+- mod->arch.virt_plt_tbl = NULL;
+-
+- if ((core_size + init_size) == 0)
+- return 0;
+-
+- mod->arch.phys_plt_tbl = __module_alloc(core_size + init_size, 1);
+- if (!mod->arch.phys_plt_tbl)
+- return -ENOMEM;
+-
+- mod->arch.virt_plt_tbl = __module_alloc(core_size + init_size, 0);
+- if (!mod->arch.virt_plt_tbl) {
+- __module_free(mod->arch.phys_plt_tbl);
+- mod->arch.phys_plt_tbl = NULL;
- return -ENOMEM;
+- }
-
return 0;
}
-@@ -254,41 +97,27 @@
+@@ -284,36 +95,28 @@ static int apply_r_mips_32_rela(struct m
return 0;
}
+static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
{
- unsigned *tramp = start + *plt_offset;
--
- *plt_offset += 4 * sizeof(int);
-
- /* adjust carry for addiu */
- tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */
- tramp[2] = 0x03200008; /* jr t9 */
- tramp[3] = 0x00000000; /* nop */
--
-- return (Elf_Addr) tramp;
--}
+ if (v % 4) {
-+ printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
++ pr_err("module %s: dangerous R_MIPS_26 REL relocation\n",
++ me->name);
+ return -ENOEXEC;
+ }
--static Elf_Addr add_plt_entry(struct module *me, void *location, Elf_Addr v)
--{
-- if (location >= me->module_core &&
-- location < me->module_core + me->core_size)
-- return add_plt_entry_to(&me->arch.core_plt_offset,
-- me->arch.plt_tbl, v);
+- return (Elf_Addr) tramp;
+-}
+ if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
+ printk(KERN_ERR
+ "module %s: relocation overflow\n",
+ return -ENOEXEC;
+ }
-- if (location >= me->module_init &&
-- location < me->module_init + me->init_size)
-- return add_plt_entry_to(&me->arch.init_plt_offset,
-- me->arch.plt_tbl, v);
+-static Elf_Addr add_plt_entry(struct module *me, void *location, Elf_Addr v)
+-{
+- if (is_phys_addr(location))
+- return add_plt_entry_to(&me->arch.phys_plt_offset,
+- me->arch.phys_plt_tbl, v);
+- else
+- return add_plt_entry_to(&me->arch.virt_plt_offset,
+- me->arch.virt_plt_tbl, v);
+ *location = (*location & ~0x03ffffff) |
+ ((*location + (v >> 2)) & 0x03ffffff);
- return 0;
++ return 0;
}
-static int set_r_mips_26(struct module *me, u32 *location, u32 ofs, Elf_Addr v)
+static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v)
{
if (v % 4) {
- printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
-@@ -296,31 +125,17 @@
+ pr_err("module %s: dangerous R_MIPS_26 RELArelocation\n",
+@@ -322,31 +125,17 @@ static int set_r_mips_26(struct module *
}
if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
{
struct mips_hi16 *n;
-@@ -585,23 +400,11 @@
+@@ -611,32 +400,11 @@ int module_finalize(const Elf_Ehdr *hdr,
list_add(&me->arch.dbe_list, &dbe_list);
spin_unlock_irq(&dbe_lock);
}
-
- /* Get rid of the fixup trampoline if we're running the module
- * from physically mapped address space */
-- if (me->arch.core_plt_offset == 0 &&
-- me->arch.init_plt_offset == me->arch.core_plt_size &&
-- is_phys_addr(me->module_core)) {
-- kfree(me->arch.plt_tbl);
-- me->arch.plt_tbl = NULL;
+- if (me->arch.phys_plt_offset == 0) {
+- __module_free(me->arch.phys_plt_tbl);
+- me->arch.phys_plt_tbl = NULL;
+- }
+- if (me->arch.virt_plt_offset == 0) {
+- __module_free(me->arch.virt_plt_tbl);
+- me->arch.virt_plt_tbl = NULL;
- }
-
return 0;
void module_arch_cleanup(struct module *mod)
{
-- if (mod->arch.plt_tbl)
-- kfree(mod->arch.plt_tbl);
+- if (mod->arch.phys_plt_tbl) {
+- __module_free(mod->arch.phys_plt_tbl);
+- mod->arch.phys_plt_tbl = NULL;
+- }
+- if (mod->arch.virt_plt_tbl) {
+- __module_free(mod->arch.virt_plt_tbl);
+- mod->arch.virt_plt_tbl = NULL;
+- }
+-
spin_lock_irq(&dbe_lock);
list_del(&mod->arch.dbe_list);
spin_unlock_irq(&dbe_lock);
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