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authorRusty Russell <rusty@rustcorp.com.au>2014-03-18 07:07:28 (GMT)
committerAnton Blanchard <anton@samba.org>2014-04-23 00:05:28 (GMT)
commit9baeaef64095eab00c232f55df2e7c2d8e89845d (patch)
tree403bc69cefdc25215f43276029a93f957cf2b3ea /arch/powerpc/kernel/misc_64.S
parentd247da0a8ebcc4ebb4c766487de6af5df560adac (diff)
downloadlinux-9baeaef64095eab00c232f55df2e7c2d8e89845d.tar.xz
powerpc: EXPORT_SYMBOL(.TOC.)
For the ELFv2 ABI, powerpc introduces a magic symbol ".TOC.". depmod then complains that this doesn't resolve (so does modpost, but we could easily fix that). To export this, we need to use asm. modpost and depmod both strip "." from symbols for the old PPC64 ELFv1 ABI, so we actually export a "TOC.". Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'arch/powerpc/kernel/misc_64.S')
-rw-r--r--arch/powerpc/kernel/misc_64.S19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index bda85a1..b80fafb 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -634,3 +634,22 @@ _GLOBAL(kexec_sequence)
li r5,0
blr /* image->start(physid, image->start, 0); */
#endif /* CONFIG_KEXEC */
+
+#ifdef CONFIG_MODULES
+#if defined(_CALL_ELF) && _CALL_ELF == 2
+/*
+ * Export a fake .TOC. since both modpost and depmod will complain otherwise.
+ * Both modpost and depmod strip the leading . so we do the same here.
+ */
+.section "__ksymtab_strings","a"
+__kstrtab_TOC.:
+ .asciz "TOC."
+
+.section "___ksymtab+TOC.","a"
+/* This symbol name is important: it's used by modpost to find exported syms */
+.globl __ksymtab_TOC.
+__ksymtab_TOC.:
+ .llong 0 /* .value */
+ .llong __kstrtab_TOC.
+#endif /* ELFv2 */
+#endif /* MODULES */