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authorShaohua Li <shaohua.li@intel.com>2008-10-06 10:43:06 -0700
committerTony Luck <tony.luck@intel.com>2008-10-06 10:43:06 -0700
commitf14488ccfe0f41207e40520fab60dce356ed9e57 (patch)
treeef538012500f197397fbee674591910a96a50805 /arch/ia64/kernel/entry.S
parentcfb361f13c8136de78c406745abc4e4456e6d480 (diff)
[IA64] utrace use generic trace hook
Make IA64 use generic trace hook in some paths. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel/entry.S')
-rw-r--r--arch/ia64/kernel/entry.S5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index 0dd6c1419d8..7ef0c594f5e 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -534,6 +534,11 @@ GLOBAL_ENTRY(ia64_trace_syscall)
stf.spill [r16]=f10
stf.spill [r17]=f11
br.call.sptk.many rp=syscall_trace_enter // give parent a chance to catch syscall args
+ cmp.lt p6,p0=r8,r0 // check tracehook
+ adds r2=PT(R8)+16,sp // r2 = &pt_regs.r8
+ adds r3=PT(R10)+16,sp // r3 = &pt_regs.r10
+ mov r10=0
+(p6) br.cond.sptk strace_error // syscall failed ->
adds r16=PT(F6)+16,sp
adds r17=PT(F7)+16,sp
;;