From: Rusty Russell <rusty@rustcorp.com.au>
Date: Tue, 18 Mar 2014 09:29:11 +0000 (+1030)
Subject: powerpc: module: handle MODVERSION for .TOC.
X-Git-Tag: next-20140506~88^2^2~16
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=71ec7c55ed91e2352c00d51d171fccaa7cef5a00;p=karo-tx-linux.git

powerpc: module: handle MODVERSION for .TOC.

For the ELFv2 ABI, powerpc introduces a magic symbol ".TOC.".  If we
don't create a CRC for it (minus the leading ".", since we strip that)
we get a modpost warning about missing CRC and the CRC array seems to
be displaced by 1 so other CRCs mismatch too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---

diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index b80fafbfab2f..4e314b90c75d 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -637,6 +637,15 @@ _GLOBAL(kexec_sequence)
 
 #ifdef CONFIG_MODULES
 #if defined(_CALL_ELF) && _CALL_ELF == 2
+
+#ifdef CONFIG_MODVERSIONS
+.weak __crc_TOC.
+.section "___kcrctab+TOC.","a"
+.globl __kcrctab_TOC.
+__kcrctab_TOC.:
+	.llong	__crc_TOC.
+#endif
+
 /*
  * 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.