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x86: BUILD_IRQ say .text to avoid .data.percpu

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When I edit the x86_64 Makefile to -fno-unit-at-a-time, bootup panics
on 0xCCs in IRQ0x3e_interrupt(): IRQ0x20_interrupt etc. have got linked
into .data.percpu.  Perhaps there are other ways of triggering that:
specify ".text" in the BUILD_IRQ() macro for safety.

I've been using -fno-unit-at-a-time (to lessen inlining, for easier
debugging) for a long time.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Hugh Dickins 2008-07-21 18:41:26 +01:00 committed by Ingo Molnar
parent 2dc1697eb3
commit 9d25d4db81
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kernel/irqinit_64.c
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@ -43,7 +43,7 @@
#define BUILD_IRQ(nr) \
asmlinkage void IRQ_NAME(nr); \
asm("\n.p2align\n" \
asm("\n.text\n.p2align\n" \
"IRQ" #nr "_interrupt:\n\t" \
"push $~(" #nr ") ; " \
"jmp common_interrupt");