summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/kernel/entry_64.S
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2008-07-31 12:38:04 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-31 12:38:04 +0200
commit5fbf24659b75356e2142e1f1b88f67b34cbc3e75 (patch)
tree0e470e4cc89b72e3d74939f8c39396a6a0bebb3a /arch/powerpc/kernel/entry_64.S
parentd89961e2dc87b6e30b8e3f60bd2af5cd92cf4643 (diff)
parent6e86841d05f371b5b9b86ce76c02aaee83352298 (diff)
downloadtalos-obmc-linux-5fbf24659b75356e2142e1f1b88f67b34cbc3e75.tar.gz
talos-obmc-linux-5fbf24659b75356e2142e1f1b88f67b34cbc3e75.zip
Merge branch 'linus' into x86/xen
Diffstat (limited to 'arch/powerpc/kernel/entry_64.S')
-rw-r--r--arch/powerpc/kernel/entry_64.S10
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index d7369243ae44..2d802e97097c 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -214,7 +214,12 @@ syscall_dotrace:
bl .save_nvgprs
addi r3,r1,STACK_FRAME_OVERHEAD
bl .do_syscall_trace_enter
- ld r0,GPR0(r1) /* Restore original registers */
+ /*
+ * Restore argument registers possibly just changed.
+ * We use the return value of do_syscall_trace_enter
+ * for the call number to look up in the table (r0).
+ */
+ mr r0,r3
ld r3,GPR3(r1)
ld r4,GPR4(r1)
ld r5,GPR5(r1)
@@ -638,8 +643,7 @@ user_work:
b .ret_from_except_lite
1: bl .save_nvgprs
- li r3,0
- addi r4,r1,STACK_FRAME_OVERHEAD
+ addi r3,r1,STACK_FRAME_OVERHEAD
bl .do_signal
b .ret_from_except
OpenPOWER on IntegriCloud