Commit e985a6c6 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

Merge remote-tracking branch 'acme/perf/urgent' into perf/core 



To have some 'perf probe' related fixes needed for further devel work in
this tool.

Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parents 90ed5b0f 844ae5b4

tools/perf/builtin-trace.c

+22 −0
Original line number Diff line number Diff line
@@ -37,6 +37,10 @@ 
# define MADV_UNMERGEABLE	13

#endif



#ifndef EFD_SEMAPHORE

# define EFD_SEMAPHORE		1

#endif



struct tp_field {

	int offset;

	union {
@@ -279,6 +283,11 @@ static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size, 


#define SCA_STRARRAY syscall_arg__scnprintf_strarray



#if defined(__i386__) || defined(__x86_64__)

/*

 * FIXME: Make this available to all arches as soon as the ioctl beautifier

 * 	  gets rewritten to support all arches.

 */

static size_t syscall_arg__scnprintf_strhexarray(char *bf, size_t size,

						 struct syscall_arg *arg)

{
@@ -286,6 +295,7 @@ static size_t syscall_arg__scnprintf_strhexarray(char *bf, size_t size, 
}



#define SCA_STRHEXARRAY syscall_arg__scnprintf_strhexarray

#endif /* defined(__i386__) || defined(__x86_64__) */



static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,

					struct syscall_arg *arg);
@@ -839,6 +849,10 @@ static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscal 


#define SCA_SIGNUM syscall_arg__scnprintf_signum



#if defined(__i386__) || defined(__x86_64__)

/*

 * FIXME: Make this available to all arches.

 */

#define TCGETS		0x5401



static const char *tioctls[] = {
@@ -860,6 +874,7 @@ static const char *tioctls[] = { 
};



static DEFINE_STRARRAY_OFFSET(tioctls, 0x5401);

#endif /* defined(__i386__) || defined(__x86_64__) */



#define STRARRAY(arg, name, array) \

	  .arg_scnprintf = { [arg] = SCA_STRARRAY, }, \
@@ -941,9 +956,16 @@ static struct syscall_fmt { 
	{ .name	    = "getrlimit",  .errmsg = true, STRARRAY(0, resource, rlimit_resources), },

	{ .name	    = "ioctl",	    .errmsg = true,

	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ 

#if defined(__i386__) || defined(__x86_64__)

/*

 * FIXME: Make this available to all arches.

 */

			     [1] = SCA_STRHEXARRAY, /* cmd */

			     [2] = SCA_HEX, /* arg */ },

	  .arg_parm	 = { [1] = &strarray__tioctls, /* cmd */ }, },

#else

			     [2] = SCA_HEX, /* arg */ }, },

#endif

	{ .name	    = "kill",	    .errmsg = true,

	  .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },

	{ .name	    = "linkat",	    .errmsg = true,

tools/perf/util/parse-events.c

+15 −2
Original line number Diff line number Diff line
@@ -1091,12 +1091,12 @@ int is_valid_tracepoint(const char *event_string) 
static bool is_event_supported(u8 type, unsigned config)

{

	bool ret = true;

	int open_return;

	struct perf_evsel *evsel;

	struct perf_event_attr attr = {

		.type = type,

		.config = config,

		.disabled = 1,

		.exclude_kernel = 1,

	};

	struct {

		struct thread_map map;
@@ -1108,7 +1108,20 @@ static bool is_event_supported(u8 type, unsigned config) 


	evsel = perf_evsel__new(&attr);

	if (evsel) {

		open_return = perf_evsel__open(evsel, NULL, &tmap.map);

		ret = open_return >= 0;



		if (open_return == -EACCES) {

			/*

			 * This happens if the paranoid value

			 * /proc/sys/kernel/perf_event_paranoid is set to 2

			 * Re-run with exclude_kernel set; we don't do that

			 * by default as some ARM machines do not support it.

			 *

			 */

			evsel->attr.exclude_kernel = 1;

			ret = perf_evsel__open(evsel, NULL, &tmap.map) >= 0;

		}

		perf_evsel__delete(evsel);

	}

tools/perf/util/probe-event.c

+1 −1
Original line number Diff line number Diff line
@@ -336,8 +336,8 @@ static int add_exec_to_probe_trace_events(struct probe_trace_event *tevs, 
		return ret;



	for (i = 0; i < ntevs && ret >= 0; i++) {

		/* point.address is the addres of point.symbol + point.offset */

		offset = tevs[i].point.address - stext;

		offset += tevs[i].point.offset;

		tevs[i].point.offset = 0;

		zfree(&tevs[i].point.symbol);

		ret = e_snprintf(buf, 32, "0x%lx", offset);

tools/perf/util/session.c

+6 −0
Original line number Diff line number Diff line
@@ -1008,6 +1008,12 @@ static int perf_session__process_user_event(struct perf_session *session, union 
		if (err == 0)

			perf_session__set_id_hdr_size(session);

		return err;

	case PERF_RECORD_HEADER_EVENT_TYPE:

		/*

		 * Depreceated, but we need to handle it for sake

		 * of old data files create in pipe mode.

		 */

		return 0;

	case PERF_RECORD_HEADER_TRACING_DATA:

		/* setup for reading amidst mmap */

		lseek(fd, file_offset, SEEK_SET);