aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/kernel/module.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 22:03:06 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 22:03:06 -0400
commit16d8775700f1815076f879719ce14b33f50a3171 (patch)
tree8525e6e6f12b6acf7cf2746853cc65549f3dbf4c /arch/arm/kernel/module.c
parente34551339a195aa548eaf698523714a8fe7f1984 (diff)
parent05e34754518b6a90d5c392790c032575fab12d66 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (91 commits) ARM: 6806/1: irq: introduce entry and exit functions for chained handlers ARM: 6781/1: Thumb-2: Work around buggy Thumb-2 short branch relocations in gas ARM: 6747/1: P2V: Thumb2 support ARM: 6798/1: aout-core: zero thread debug registers in a.out core dump ARM: 6796/1: Footbridge: Fix I/O mappings for NOMMU mode ARM: 6784/1: errata: no automatic Store Buffer drain on Cortex-A9 ARM: 6772/1: errata: possible fault MMU translations following an ASID switch ARM: 6776/1: mach-ux500: activate fix for errata 753970 ARM: 6794/1: SPEAr: Append UL to device address macros. ARM: 6793/1: SPEAr: Remove unused *_SIZE macros from spear*.h files ARM: 6792/1: SPEAr: Replace SIZE macro's with SZ_4K macros ARM: 6791/1: SPEAr3xx: Declare device structures after shirq code ARM: 6790/1: SPEAr: Clock Framework: Rename usbd clock and align apb_clk entry ARM: 6789/1: SPEAr3xx: Rename sdio to sdhci ARM: 6788/1: SPEAr: Include mach/hardware.h instead of mach/spear.h ARM: 6787/1: SPEAr: Reorder #includes in .h & .c files. ARM: 6681/1: SPEAr: add debugfs support to clk API ARM: 6703/1: SPEAr: update clk API support ARM: 6679/1: SPEAr: make clk API functions more generic ARM: 6737/1: SPEAr: formalized timer support ...
Diffstat (limited to 'arch/arm/kernel/module.c')
-rw-r--r--arch/arm/kernel/module.c35
1 files changed, 21 insertions, 14 deletions
diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index 6d4105e6872f..fee7c36349eb 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -76,6 +76,7 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
76 for (i = 0; i < relsec->sh_size / sizeof(Elf32_Rel); i++, rel++) { 76 for (i = 0; i < relsec->sh_size / sizeof(Elf32_Rel); i++, rel++) {
77 unsigned long loc; 77 unsigned long loc;
78 Elf32_Sym *sym; 78 Elf32_Sym *sym;
79 const char *symname;
79 s32 offset; 80 s32 offset;
80#ifdef CONFIG_THUMB2_KERNEL 81#ifdef CONFIG_THUMB2_KERNEL
81 u32 upper, lower, sign, j1, j2; 82 u32 upper, lower, sign, j1, j2;
@@ -83,18 +84,18 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
83 84
84 offset = ELF32_R_SYM(rel->r_info); 85 offset = ELF32_R_SYM(rel->r_info);
85 if (offset < 0 || offset > (symsec->sh_size / sizeof(Elf32_Sym))) { 86 if (offset < 0 || offset > (symsec->sh_size / sizeof(Elf32_Sym))) {
86 printk(KERN_ERR "%s: bad relocation, section %d reloc %d\n", 87 pr_err("%s: section %u reloc %u: bad relocation sym offset\n",
87 module->name, relindex, i); 88 module->name, relindex, i);
88 return -ENOEXEC; 89 return -ENOEXEC;
89 } 90 }
90 91
91 sym = ((Elf32_Sym *)symsec->sh_addr) + offset; 92 sym = ((Elf32_Sym *)symsec->sh_addr) + offset;
93 symname = strtab + sym->st_name;
92 94
93 if (rel->r_offset < 0 || rel->r_offset > dstsec->sh_size - sizeof(u32)) { 95 if (rel->r_offset < 0 || rel->r_offset > dstsec->sh_size - sizeof(u32)) {
94 printk(KERN_ERR "%s: out of bounds relocation, " 96 pr_err("%s: section %u reloc %u sym '%s': out of bounds relocation, offset %d size %u\n",
95 "section %d reloc %d offset %d size %d\n", 97 module->name, relindex, i, symname,
96 module->name, relindex, i, rel->r_offset, 98 rel->r_offset, dstsec->sh_size);
97 dstsec->sh_size);
98 return -ENOEXEC; 99 return -ENOEXEC;
99 } 100 }
100 101
@@ -120,10 +121,10 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
120 if (offset & 3 || 121 if (offset & 3 ||
121 offset <= (s32)0xfe000000 || 122 offset <= (s32)0xfe000000 ||
122 offset >= (s32)0x02000000) { 123 offset >= (s32)0x02000000) {
123 printk(KERN_ERR 124 pr_err("%s: section %u reloc %u sym '%s': relocation %u out of range (%#lx -> %#x)\n",
124 "%s: relocation out of range, section " 125 module->name, relindex, i, symname,
125 "%d reloc %d sym '%s'\n", module->name, 126 ELF32_R_TYPE(rel->r_info), loc,
126 relindex, i, strtab + sym->st_name); 127 sym->st_value);
127 return -ENOEXEC; 128 return -ENOEXEC;
128 } 129 }
129 130
@@ -196,10 +197,10 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
196 if (!(offset & 1) || 197 if (!(offset & 1) ||
197 offset <= (s32)0xff000000 || 198 offset <= (s32)0xff000000 ||
198 offset >= (s32)0x01000000) { 199 offset >= (s32)0x01000000) {
199 printk(KERN_ERR 200 pr_err("%s: section %u reloc %u sym '%s': relocation %u out of range (%#lx -> %#x)\n",
200 "%s: relocation out of range, section " 201 module->name, relindex, i, symname,
201 "%d reloc %d sym '%s'\n", module->name, 202 ELF32_R_TYPE(rel->r_info), loc,
202 relindex, i, strtab + sym->st_name); 203 sym->st_value);
203 return -ENOEXEC; 204 return -ENOEXEC;
204 } 205 }
205 206
@@ -282,12 +283,13 @@ static const Elf_Shdr *find_mod_section(const Elf32_Ehdr *hdr,
282 return NULL; 283 return NULL;
283} 284}
284 285
286extern void fixup_pv_table(const void *, unsigned long);
285extern void fixup_smp(const void *, unsigned long); 287extern void fixup_smp(const void *, unsigned long);
286 288
287int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs, 289int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
288 struct module *mod) 290 struct module *mod)
289{ 291{
290 const Elf_Shdr * __maybe_unused s = NULL; 292 const Elf_Shdr *s = NULL;
291#ifdef CONFIG_ARM_UNWIND 293#ifdef CONFIG_ARM_UNWIND
292 const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; 294 const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
293 const Elf_Shdr *sechdrs_end = sechdrs + hdr->e_shnum; 295 const Elf_Shdr *sechdrs_end = sechdrs + hdr->e_shnum;
@@ -332,6 +334,11 @@ int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
332 maps[i].txt_sec->sh_addr, 334 maps[i].txt_sec->sh_addr,
333 maps[i].txt_sec->sh_size); 335 maps[i].txt_sec->sh_size);
334#endif 336#endif
337#ifdef CONFIG_ARM_PATCH_PHYS_VIRT
338 s = find_mod_section(hdr, sechdrs, ".pv_table");
339 if (s)
340 fixup_pv_table((void *)s->sh_addr, s->sh_size);
341#endif
335 s = find_mod_section(hdr, sechdrs, ".alt.smp.init"); 342 s = find_mod_section(hdr, sechdrs, ".alt.smp.init");
336 if (s && !is_smp()) 343 if (s && !is_smp())
337 fixup_smp((void *)s->sh_addr, s->sh_size); 344 fixup_smp((void *)s->sh_addr, s->sh_size);