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authorMasahiro Yamada <yamada.masahiro@socionext.com>2018-05-09 10:23:49 +0300
committerMasahiro Yamada <yamada.masahiro@socionext.com>2018-05-17 16:44:57 +0300
commit94e58e0ac31284fa26597c0e00a9b1d87a691d02 (patch)
tree4822cf5019a6e5eaa70ca8487bb737bacb9f0006 /include/linux/export.h
parent5a144a1acd0b4b4afd1b2695f7231b58e8848ce6 (diff)
downloadlinux-94e58e0ac31284fa26597c0e00a9b1d87a691d02.tar.xz
export.h: remove code for prefixing symbols with underscore
CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX was selected by BLACKFIN, METAG. They were removed by commit 4ba66a976072 ("arch: remove blackfin port"), commit bb6fb6dfcc17 ("metag: Remove arch/metag/"), respectively. No more architecture enables CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX. Clean up the export.h headers. I am keeping VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR() because they are widely used. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'include/linux/export.h')
-rw-r--r--include/linux/export.h16
1 files changed, 5 insertions, 11 deletions
diff --git a/include/linux/export.h b/include/linux/export.h
index 1a1dfdb2a5c6..b768d6dd3c90 100644
--- a/include/linux/export.h
+++ b/include/linux/export.h
@@ -10,14 +10,8 @@
* hackers place grumpy comments in header files.
*/
-/* Some toolchains use a `_' prefix for all user symbols. */
-#ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX
-#define __VMLINUX_SYMBOL(x) _##x
-#define __VMLINUX_SYMBOL_STR(x) "_" #x
-#else
#define __VMLINUX_SYMBOL(x) x
#define __VMLINUX_SYMBOL_STR(x) #x
-#endif
/* Indirect, so macros are expanded before pasting. */
#define VMLINUX_SYMBOL(x) __VMLINUX_SYMBOL(x)
@@ -46,14 +40,14 @@ extern struct module __this_module;
#if defined(CONFIG_MODULE_REL_CRCS)
#define __CRC_SYMBOL(sym, sec) \
asm(" .section \"___kcrctab" sec "+" #sym "\", \"a\" \n" \
- " .weak " VMLINUX_SYMBOL_STR(__crc_##sym) " \n" \
- " .long " VMLINUX_SYMBOL_STR(__crc_##sym) " - . \n" \
+ " .weak __crc_" #sym " \n" \
+ " .long __crc_" #sym " - . \n" \
" .previous \n");
#else
#define __CRC_SYMBOL(sym, sec) \
asm(" .section \"___kcrctab" sec "+" #sym "\", \"a\" \n" \
- " .weak " VMLINUX_SYMBOL_STR(__crc_##sym) " \n" \
- " .long " VMLINUX_SYMBOL_STR(__crc_##sym) " \n" \
+ " .weak __crc_" #sym " \n" \
+ " .long __crc_" #sym " \n" \
" .previous \n");
#endif
#else
@@ -66,7 +60,7 @@ extern struct module __this_module;
__CRC_SYMBOL(sym, sec) \
static const char __kstrtab_##sym[] \
__attribute__((section("__ksymtab_strings"), aligned(1))) \
- = VMLINUX_SYMBOL_STR(sym); \
+ = #sym; \
static const struct kernel_symbol __ksymtab_##sym \
__used \
__attribute__((section("___ksymtab" sec "+" #sym), used)) \