path: root/kernel/module.c
diff options
authorRusty Russell <rusty@rustcorp.com.au>2013-03-15 15:04:17 +1030
committerRusty Russell <rusty@rustcorp.com.au>2013-03-15 15:09:43 +1030
commitb92021b09df70c1609e3547f3d6128dd560be97f (patch)
tree0203752a738c71718f5141b84f5143d1dc8b431d /kernel/module.c
parent4febd95a8a85dd38b1a71fcf9726e19c7fd20039 (diff)
We have CONFIG_SYMBOL_PREFIX, which three archs define to the string "_". But Al Viro broke this in "consolidate cond_syscall and SYSCALL_ALIAS declarations" (in linux-next), and he's not the first to do so. Using CONFIG_SYMBOL_PREFIX is awkward, since we usually just want to prefix it so something. So various places define helpers which are defined to nothing if CONFIG_SYMBOL_PREFIX isn't set: 1) include/asm-generic/unistd.h defines __SYMBOL_PREFIX. 2) include/asm-generic/vmlinux.lds.h defines VMLINUX_SYMBOL(sym) 3) include/linux/export.h defines MODULE_SYMBOL_PREFIX. 4) include/linux/kernel.h defines SYMBOL_PREFIX (which differs from #7) 5) kernel/modsign_certificate.S defines ASM_SYMBOL(sym) 6) scripts/modpost.c defines MODULE_SYMBOL_PREFIX 7) scripts/Makefile.lib defines SYMBOL_PREFIX on the commandline if CONFIG_SYMBOL_PREFIX is set, so that we have a non-string version for pasting. (arch/h8300/include/asm/linkage.h defines SYMBOL_NAME(), too). Let's solve this properly: 1) No more generic prefix, just CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX. 2) Make linux/export.h usable from asm. 3) Define VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR(). 4) Make everyone use them. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Reviewed-by: James Hogan <james.hogan@imgtec.com> Tested-by: James Hogan <james.hogan@imgtec.com> (metag)
Diffstat (limited to 'kernel/module.c')
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/module.c b/kernel/module.c
index 0925c9a71975..cfd4a3f68d7d 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1209,7 +1209,7 @@ static inline int check_modstruct_version(Elf_Shdr *sechdrs,
/* Since this should be found in kernel (which can't be removed),
* no locking is necessary. */
- if (!find_symbol(MODULE_SYMBOL_PREFIX "module_layout", NULL,
+ if (!find_symbol(VMLINUX_SYMBOL_STR(module_layout), NULL,
&crc, true, false))
return check_version(sechdrs, versindex, "module_layout", mod, crc,