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authorSimon Marchi <simon.marchi@polymtl.ca>2013-01-21 19:54:57 -0500
committerChris Metcalf <cmetcalf@tilera.com>2013-03-22 15:46:18 -0400
commitef567f25d5d9d803b89bc2aec6bb71fe8b4bebd9 (patch)
treee17d273b2a98d2cdd94eef15eb4cf41c376248b3 /arch/tile/kernel/intvec_64.S
parent6e4a2f7f94cbac4e1f111f604ccf57dcbdef0a81 (diff)
downloadop-kernel-dev-ef567f25d5d9d803b89bc2aec6bb71fe8b4bebd9.zip
op-kernel-dev-ef567f25d5d9d803b89bc2aec6bb71fe8b4bebd9.tar.gz
tile: support TIF_SYSCALL_TRACEPOINT; select HAVE_SYSCALL_TRACEPOINTS
This patch adds support for the TIF_SYSCALL_TRACEPOINT on the tile architecture. Basically, it calls the appropriate tracepoints on syscall entry and exit. Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/kernel/intvec_64.S')
-rw-r--r--arch/tile/kernel/intvec_64.S14
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/tile/kernel/intvec_64.S b/arch/tile/kernel/intvec_64.S
index 21991f7..85d4839 100644
--- a/arch/tile/kernel/intvec_64.S
+++ b/arch/tile/kernel/intvec_64.S
@@ -1000,8 +1000,11 @@ handle_syscall:
/* Trace syscalls, if requested. */
addi r31, r31, THREAD_INFO_FLAGS_OFFSET
- ld r30, r31
- andi r30, r30, _TIF_SYSCALL_TRACE
+ {
+ ld r30, r31
+ moveli r32, _TIF_SYSCALL_ENTRY_WORK
+ }
+ and r30, r30, r32
{
addi r30, r31, THREAD_INFO_STATUS_OFFSET - THREAD_INFO_FLAGS_OFFSET
beqzt r30, .Lrestore_syscall_regs
@@ -1074,8 +1077,11 @@ handle_syscall:
FEEDBACK_REENTER(handle_syscall)
/* Do syscall trace again, if requested. */
- ld r30, r31
- andi r0, r30, _TIF_SYSCALL_TRACE
+ {
+ ld r30, r31
+ moveli r32, _TIF_SYSCALL_EXIT_WORK
+ }
+ and r0, r30, r32
{
andi r0, r30, _TIF_SINGLESTEP
beqzt r0, 1f
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