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powerpc: module: handle MODVERSION for .TOC.

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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>
This commit is contained in:
Rusty Russell 2014-03-18 19:59:11 +10:30 • committed by Anton Blanchard
commit 71ec7c55ed
1 changed files with 9 additions and 0 deletions
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9
arch/powerpc/kernel/misc_64.S
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@ -637,6 +637,15 @@ _GLOBAL(kexec_sequence)
#ifdef CONFIG_MODULES #ifdef CONFIG_MODULES
#if defined(_CALL_ELF) && _CALL_ELF == 2 #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. * 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. * Both modpost and depmod strip the leading . so we do the same here.