diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-11-27 00:10:04 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-04 01:01:10 +1100 |
| commit | 7fec9f5d41979dbe273ec337327d5939449562e7 (patch) | |
| tree | a34764eaa4dffdba3f53e88849e7cd06eea77758 /arch/powerpc | |
| parent | ce7d8056e38b770f070fc4499c577322b6ccb9c7 (diff) | |
powerpc/vdso: Save and restore TOC pointer on PPC64
On PPC64, the TOC pointer needs to be saved and restored.
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201126131006.2431205-7-mpe@ellerman.id.au
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/vdso/gettimeofday.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/vdso/gettimeofday.h b/arch/powerpc/include/asm/vdso/gettimeofday.h index 43dd1dc47c37..6f56a6bce615 100644 --- a/arch/powerpc/include/asm/vdso/gettimeofday.h +++ b/arch/powerpc/include/asm/vdso/gettimeofday.h @@ -19,10 +19,16 @@ .cfi_register lr, r0 PPC_STLU r1, -PPC_MIN_STKFRM(r1) PPC_STL r0, PPC_MIN_STKFRM + PPC_LR_STKOFF(r1) +#ifdef __powerpc64__ + PPC_STL r2, PPC_MIN_STKFRM + STK_GOT(r1) +#endif get_datapage r5, r0 addi r5, r5, VDSO_DATA_OFFSET bl DOTSYM(\funct) PPC_LL r0, PPC_MIN_STKFRM + PPC_LR_STKOFF(r1) +#ifdef __powerpc64__ + PPC_LL r2, PPC_MIN_STKFRM + STK_GOT(r1) +#endif cmpwi r3, 0 mtlr r0 .cfi_restore lr @@ -42,10 +48,16 @@ .cfi_register lr, r0 PPC_STLU r1, -PPC_MIN_STKFRM(r1) PPC_STL r0, PPC_MIN_STKFRM + PPC_LR_STKOFF(r1) +#ifdef __powerpc64__ + PPC_STL r2, PPC_MIN_STKFRM + STK_GOT(r1) +#endif get_datapage r4, r0 addi r4, r4, VDSO_DATA_OFFSET bl DOTSYM(\funct) PPC_LL r0, PPC_MIN_STKFRM + PPC_LR_STKOFF(r1) +#ifdef __powerpc64__ + PPC_LL r2, PPC_MIN_STKFRM + STK_GOT(r1) +#endif crclr so mtlr r0 .cfi_restore lr |