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[PATCH] ppc64: Fix return value of some vDSO calls

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The ppc vDSO would not properly clear the return value for some calls,
which will be a problem when interfacing those calls with glibc. This
should be fixed before 2.6.12 is released (as it is the first kernel
with the ppc vDSO) so that we don't have to play with symbol versioning
and ugly workarounds.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Benjamin Herrenschmidt 2005-04-27 18:04:45 -07:00 committed by Linus Torvalds
parent 5fc3e624ad
commit bdceb6a016
3 changed files with 5 additions and 0 deletions
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2
arch/ppc64/kernel/vdso32/cacheflush.S
View File

@ -47,6 +47,7 @@ V_FUNCTION_BEGIN(__kernel_sync_dicache)
addi r6,r6,128
bdnz 1b
isync
li r3,0
blr
.cfi_endproc
V_FUNCTION_END(__kernel_sync_dicache)
@ -59,6 +60,7 @@ V_FUNCTION_BEGIN(__kernel_sync_dicache_p5)
.cfi_startproc
sync
isync
li r3,0
blr
.cfi_endproc
V_FUNCTION_END(__kernel_sync_dicache_p5)

1
arch/ppc64/kernel/vdso32/gettimeofday.S
View File

@ -58,6 +58,7 @@ V_FUNCTION_BEGIN(__kernel_gettimeofday)
stw r5,TZONE_TZ_DSTTIME(r11)
1: mtlr r12
li r3,0
blr
2: mr r3,r10

2
arch/ppc64/kernel/vdso64/cacheflush.S
View File

@ -47,6 +47,7 @@ V_FUNCTION_BEGIN(__kernel_sync_dicache)
addi r6,r6,128
bdnz 1b
isync
li r3,0
blr
.cfi_endproc
V_FUNCTION_END(__kernel_sync_dicache)
@ -59,6 +60,7 @@ V_FUNCTION_BEGIN(__kernel_sync_dicache_p5)
.cfi_startproc
sync
isync
li r3,0
blr
.cfi_endproc
V_FUNCTION_END(__kernel_sync_dicache_p5)