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authorIngo Molnar <mingo@kernel.org>2017-02-07 08:49:17 +0100
committerIngo Molnar <mingo@kernel.org>2017-02-07 08:49:17 +0100
commit87a8d03266a55f18f31fdb71c28a8dcffe39124d (patch)
treeab337ca060871296a8dc5d47fcd45da9dcb17a3a /include/linux/export.h
parent696204faa6e8a318320ebb49d9fa69bc8275644d (diff)
parentd5adbfcd5f7bcc6fa58a41c5c5ada0e5c826ce2c (diff)
Merge tag 'v4.10-rc7' into efi/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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;
#ifdef CONFIG_MODVERSIONS
/* Mark the CRC weak since genksyms apparently decides not to
* generate a checksums for some symbols */
+#if defined(CONFIG_MODULE_REL_CRCS)
#define __CRC_SYMBOL(sym, sec) \
- extern __visible void *__crc_##sym __attribute__((weak)); \
- static const unsigned long __kcrctab_##sym \
- __used \
- __attribute__((section("___kcrctab" sec "+" #sym), used)) \
- = (unsigned long) &__crc_##sym;
+ asm(" .section \"___kcrctab" sec "+" #sym "\", \"a\" \n" \
+ " .weak " VMLINUX_SYMBOL_STR(__crc_##sym) " \n" \
+ " .long " VMLINUX_SYMBOL_STR(__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" \
+ " .previous \n");
+#endif
#else
#define __CRC_SYMBOL(sym, sec)
#endif