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authorKyle McMartin <kyle@mcmartin.ca>2009-04-26 23:53:34 -0400
committerKyle McMartin <kyle@ihatethathostname.lab.bos.redhat.com>2009-09-27 23:07:21 -0400
commitd6b58772dc39262629708e5f3c30ef06de290894 (patch)
treebed61d5aea5f655ca86a064f441df2f505e769e9 /arch/parisc/kernel/syscall.S
parent17d857be649a21ca90008c6dc425d849fa83db5c (diff)
downloadlinux-2.6.34-ux500-d6b58772dc39262629708e5f3c30ef06de290894.tar.gz
parisc: tracehook_report_syscall
This makes parisc use the standard tracehook_report_syscall_entry and tracehook_report_syscall_exit hooks in <linux/tracehook.h>. To do this, we need to access current->thread.regs, and to know whether we're entering or exiting the syscall, so add this to syscall_trace. Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Diffstat (limited to 'arch/parisc/kernel/syscall.S')
-rw-r--r--arch/parisc/kernel/syscall.S4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 59fc1a43ec3..5698668166c 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -288,6 +288,7 @@ tracesys:
STREG %r18,PT_GR18(%r2)
/* Finished saving things for the debugger */
+ ldi 0,%r26 /* syscall entry */
ldil L%syscall_trace,%r1
ldil L%tracesys_next,%r2
be R%syscall_trace(%sr7,%r1)
@@ -336,6 +337,7 @@ tracesys_exit:
#ifdef CONFIG_64BIT
ldo -16(%r30),%r29 /* Reference param save area */
#endif
+ ldi 1,%r26 /* syscall exit */
bl syscall_trace, %r2
STREG %r28,TASK_PT_GR28(%r1) /* save return value now */
ldo -THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1 /* get task ptr */
@@ -358,7 +360,7 @@ tracesys_sigexit:
ldo -16(%r30),%r29 /* Reference param save area */
#endif
bl syscall_trace, %r2
- nop
+ ldi 1,%r26 /* syscall exit */
ldil L%syscall_exit_rfi,%r1
be,n R%syscall_exit_rfi(%sr7,%r1)