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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/include/asm/thread_info.h
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/include/asm/thread_info.h')
-rw-r--r--arch/tile/include/asm/thread_info.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/tile/include/asm/thread_info.h b/arch/tile/include/asm/thread_info.h
index e9c670d..c96331e 100644
--- a/arch/tile/include/asm/thread_info.h
+++ b/arch/tile/include/asm/thread_info.h
@@ -124,6 +124,7 @@ extern void _cpu_idle(void);
#define TIF_SECCOMP 6 /* secure computing */
#define TIF_MEMDIE 7 /* OOM killer at work */
#define TIF_NOTIFY_RESUME 8 /* callback before returning to user */
+#define TIF_SYSCALL_TRACEPOINT 9 /* syscall tracepoint instrumentation */
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
@@ -134,12 +135,19 @@ extern void _cpu_idle(void);
#define _TIF_SECCOMP (1<<TIF_SECCOMP)
#define _TIF_MEMDIE (1<<TIF_MEMDIE)
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
+#define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
/* Work to do on any return to user space. */
#define _TIF_ALLWORK_MASK \
(_TIF_SIGPENDING|_TIF_NEED_RESCHED|_TIF_SINGLESTEP|\
_TIF_ASYNC_TLB|_TIF_NOTIFY_RESUME)
+/* Work to do at syscall entry. */
+#define _TIF_SYSCALL_ENTRY_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT)
+
+/* Work to do at syscall exit. */
+#define _TIF_SYSCALL_EXIT_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT)
+
/*
* Thread-synchronous status.
*
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