A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge branch 'module' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus

Browse source 
* 'module' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  modpost: fix segfault with short symbol names
  module: handle ppc64 relocating kcrctabs when CONFIG_RELOCATABLE=y
  Kbuild: clear marker out of modpost
  module: make MODULE_SYMBOL_PREFIX into a CONFIG option
  ARM: unexport symbols used to implement floating point emulation
  ARM: use unified discard definition in linker script
  x86: don't export inline function
  sparc64: don't export static inline pci_ functions
This commit is contained in:
Linus Torvalds 2009-12-16 10:47:24 -08:00
commit 74f3ae7434
21 changed files with 75 additions and 236 deletions
Download patch file Download diff file Expand all files Collapse all files

28
kernel/module.c
View file

@ -880,11 +880,23 @@ static int try_to_force_load(struct module *mod, const char *reason)
}
#ifdef CONFIG_MODVERSIONS
/* If the arch applies (non-zero) relocations to kernel kcrctab, unapply it. */
static unsigned long maybe_relocated(unsigned long crc,
const struct module *crc_owner)
{
#ifdef ARCH_RELOCATES_KCRCTAB
if (crc_owner == NULL)
return crc - (unsigned long)reloc_start;
#endif
return crc;
}
static int check_version(Elf_Shdr *sechdrs,
unsigned int versindex,
const char *symname,
struct module *mod,
const unsigned long *crc)
const unsigned long *crc,
const struct module *crc_owner)
{
unsigned int i, num_versions;
struct modversion_info *versions;
@ -905,10 +917,10 @@ static int check_version(Elf_Shdr *sechdrs,
if (strcmp(versions[i].name, symname) != 0)
continue;
if (versions[i].crc == *crc)
if (versions[i].crc == maybe_relocated(*crc, crc_owner))
return 1;
DEBUGP("Found checksum %lX vs module %lX\n",
*crc, versions[i].crc);
maybe_relocated(*crc, crc_owner), versions[i].crc);
goto bad_version;
}
@ -931,7 +943,8 @@ static inline int check_modstruct_version(Elf_Shdr *sechdrs,
if (!find_symbol(MODULE_SYMBOL_PREFIX "module_layout", NULL,
&crc, true, false))
BUG();
return check_version(sechdrs, versindex, "module_layout", mod, crc);
return check_version(sechdrs, versindex, "module_layout", mod, crc,
NULL);
}
/* First part is kernel version, which we ignore if module has crcs. */
@ -949,7 +962,8 @@ static inline int check_version(Elf_Shdr *sechdrs,
unsigned int versindex,
const char *symname,
struct module *mod,
const unsigned long *crc)
const unsigned long *crc,
const struct module *crc_owner)
{
return 1;
}
@ -984,8 +998,8 @@ static const struct kernel_symbol *resolve_symbol(Elf_Shdr *sechdrs,
/* use_module can fail due to OOM,
or module initialization or unloading */
if (sym) {
if (!check_version(sechdrs, versindex, name, mod, crc) ||
!use_module(mod, owner))
if (!check_version(sechdrs, versindex, name, mod, crc, owner)
|| !use_module(mod, owner))
sym = NULL;
}
return sym;