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authorAndi Kleen <ak@linux.intel.com>2013-10-23 10:57:58 +1030
committerRusty Russell <rusty@rustcorp.com.au>2013-10-29 09:43:37 +1030
commite0f244c63fc9d192dfd399cc2677bbdca61994b1 (patch)
tree0196f9eab616fdb4a6289050e7c96bd1c944a70e
parenteb3057df732c304622aee77c450761746939a2dc (diff)
downloadlinux-e0f244c63fc9d192dfd399cc2677bbdca61994b1.tar.bz2
asmlinkage, module: Make ksymtab and kcrctab symbols and __this_module __visible
Make the ksymtab symbols for EXPORT_SYMBOL visible. This prevents the LTO compiler from adding a .NUMBER prefix, which avoids various problems in later export processing. Cc: rusty@rustcorp.com.au Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
-rw-r--r--include/linux/export.h4
-rw-r--r--scripts/mod/modpost.c2
2 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/export.h b/include/linux/export.h
index 412cd509effe..3f2793d51899 100644
--- a/include/linux/export.h
+++ b/include/linux/export.h
@@ -43,7 +43,7 @@ extern struct module __this_module;
/* Mark the CRC weak since genksyms apparently decides not to
* generate a checksums for some symbols */
#define __CRC_SYMBOL(sym, sec) \
- extern void *__crc_##sym __attribute__((weak)); \
+ extern __visible void *__crc_##sym __attribute__((weak)); \
static const unsigned long __kcrctab_##sym \
__used \
__attribute__((section("___kcrctab" sec "+" #sym), unused)) \
@@ -59,7 +59,7 @@ extern struct module __this_module;
static const char __kstrtab_##sym[] \
__attribute__((section("__ksymtab_strings"), aligned(1))) \
= VMLINUX_SYMBOL_STR(sym); \
- static const struct kernel_symbol __ksymtab_##sym \
+ __visible const struct kernel_symbol __ksymtab_##sym \
__used \
__attribute__((section("___ksymtab" sec "+" #sym), unused)) \
= { (unsigned long)&sym, __kstrtab_##sym }
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 393706b37774..9b873ac6ed7b 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1861,7 +1861,7 @@ static void add_header(struct buffer *b, struct module *mod)
buf_printf(b, "\n");
buf_printf(b, "MODULE_INFO(vermagic, VERMAGIC_STRING);\n");
buf_printf(b, "\n");
- buf_printf(b, "struct module __this_module\n");
+ buf_printf(b, "__visible struct module __this_module\n");
buf_printf(b, "__attribute__((section(\".gnu.linkonce.this_module\"))) = {\n");
buf_printf(b, "\t.name = KBUILD_MODNAME,\n");
if (mod->has_init)