aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/export.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/export.h')
-rw-r--r--include/linux/export.h17
1 files changed, 12 insertions, 5 deletions
diff --git a/include/linux/export.h b/include/linux/export.h
index 2a0f61fbc731..1a1dfdb2a5c6 100644
--- a/include/linux/export.h
+++ b/include/linux/export.h
@@ -43,12 +43,19 @@ extern struct module __this_module;
43#ifdef CONFIG_MODVERSIONS 43#ifdef CONFIG_MODVERSIONS
44/* Mark the CRC weak since genksyms apparently decides not to 44/* Mark the CRC weak since genksyms apparently decides not to
45 * generate a checksums for some symbols */ 45 * generate a checksums for some symbols */
46#if defined(CONFIG_MODULE_REL_CRCS)
46#define __CRC_SYMBOL(sym, sec) \ 47#define __CRC_SYMBOL(sym, sec) \
47 extern __visible void *__crc_##sym __attribute__((weak)); \ 48 asm(" .section \"___kcrctab" sec "+" #sym "\", \"a\" \n" \
48 static const unsigned long __kcrctab_##sym \ 49 " .weak " VMLINUX_SYMBOL_STR(__crc_##sym) " \n" \
49 __used \ 50 " .long " VMLINUX_SYMBOL_STR(__crc_##sym) " - . \n" \
50 __attribute__((section("___kcrctab" sec "+" #sym), used)) \ 51 " .previous \n");
51 = (unsigned long) &__crc_##sym; 52#else
53#define __CRC_SYMBOL(sym, sec) \
54 asm(" .section \"___kcrctab" sec "+" #sym "\", \"a\" \n" \
55 " .weak " VMLINUX_SYMBOL_STR(__crc_##sym) " \n" \
56 " .long " VMLINUX_SYMBOL_STR(__crc_##sym) " \n" \
57 " .previous \n");
58#endif
52#else 59#else
53#define __CRC_SYMBOL(sym, sec) 60#define __CRC_SYMBOL(sym, sec)
54#endif 61#endif