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x86-64: make BUILD_IRQ() also reset section back

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Commit 9d25d4db81 ("x86: BUILD_IRQ say
.text to avoid .data.percpu") added a ".text" specifier to make sure
that BUILD_IRQ() builds the irq trampoline in the text segment rather
than in some random left-over segment that the compiler happened to
leave the asm in.

However, we should also make sure that we switch back by adding a
".previous" at the end, so that there are no subtle issues with
subsequent compiler-generated code.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds
2008-07-24 12:49:26 -07:00
parent 6044110742
commit 6209ed9d84
1 changed files with 2 additions and 1 deletions
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3
arch/x86/kernel/irqinit_64.c
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@@ -46,7 +46,8 @@
asm("\n.text\n.p2align\n" \ asm("\n.text\n.p2align\n" \
"IRQ" #nr "_interrupt:\n\t" \ "IRQ" #nr "_interrupt:\n\t" \
"push $~(" #nr ") ; " \ "push $~(" #nr ") ; " \
"jmp common_interrupt"); "jmp common_interrupt\n" \
".previous");
#define BI(x,y) \ #define BI(x,y) \
BUILD_IRQ(x##y) BUILD_IRQ(x##y)