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| author | Ben Noordhuis <info@bnoordhuis.nl> | 2013-02-04 00:04:57 +0100 |
|---|---|---|
| committer | Dmitry V. Levin <ldv@altlinux.org> | 2013-02-05 23:15:14 +0000 |
| commit | 88eafd81ab061ff217c0b56f02b07c16cbd29ff4 (patch) | |
| tree | bead52005e21685a2458778e3c1fd98d11c31e59 /desc.c | |
| parent | af8dc6b3a562193c27c89531e7ac6d94e7c3c322 (diff) | |
| download | strace-88eafd81ab061ff217c0b56f02b07c16cbd29ff4.tar.gz | |
Improve perf_event_open argument decoding
* configure.ac (AC_CHECK_HEADERS): Add linux/perf_event.h.
* desc.c [HAVE_LINUX_PERF_EVENT_H]: Include <linux/perf_event.h>.
(perf_event_open_flags): New xlat structure.
(sys_perf_event_open): New function.
* linux/dummy.h (sys_perf_event_open): Remove.
* linux/syscall.h (sys_perf_event_open): New prototype.
Signed-off-by: Ben Noordhuis <info@bnoordhuis.nl>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Diffstat (limited to 'desc.c')
| -rw-r--r-- | desc.c | 31 |
1 files changed, 31 insertions, 0 deletions
@@ -37,6 +37,9 @@ #ifdef HAVE_LIBAIO_H # include <libaio.h> #endif +#ifdef HAVE_LINUX_PERF_EVENT_H +# include <linux/perf_event.h> +#endif #if HAVE_LONG_LONG_OFF_T /* @@ -222,6 +225,19 @@ static const struct xlat whence[] = { { 0, NULL }, }; +static const struct xlat perf_event_open_flags[] = { +#ifdef PERF_FLAG_FD_NO_GROUP + { PERF_FLAG_FD_NO_GROUP, "PERF_FLAG_FD_NO_GROUP" }, +#endif +#ifdef PERF_FLAG_FD_OUTPUT + { PERF_FLAG_FD_OUTPUT, "PERF_FLAG_FD_OUTPUT" }, +#endif +#ifdef PERF_FLAG_PID_CGROUP + { PERF_FLAG_PID_CGROUP, "PERF_FLAG_PID_CGROUP" }, +#endif + { 0, NULL }, +}; + #ifndef HAVE_LONG_LONG_OFF_T /* fcntl/lockf */ static void @@ -1068,3 +1084,18 @@ sys_eventfd2(struct tcb *tcp) { return do_eventfd(tcp, 1); } + +int +sys_perf_event_open(struct tcb *tcp) +{ + if (entering(tcp)) { + tprintf("%#lx, %d, %d, %d, ", + tcp->u_arg[0], + (int) tcp->u_arg[1], + (int) tcp->u_arg[2], + (int) tcp->u_arg[3]); + printflags(perf_event_open_flags, tcp->u_arg[4], + "PERF_FLAG_???"); + } + return 0; +} |