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Subject[GIT PULL] perf fixes
Linus,

Please pull the latest perf-urgent-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf-urgent-for-linus

# HEAD: b130a699c07155a1d6ef7d971a5f3bf0e3818d5a Merge tag 'perf-urgent-for-mingo-4.14-20170912' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

A handful of tooling fixes.

Thanks,

Ingo

------------------>
Arnaldo Carvalho de Melo (1):
tools include linux: Guard against redefinition of some macros

Jiri Olsa (4):
tools lib api: Fix make DEBUG=1 build
perf tools: Open perf.data with O_CLOEXEC flag
perf ui progress: Make sure we always define step value
perf ui progress: Fix progress update

Milian Wolff (3):
perf tests: Fix compile when libunwind's unwind.h is available
perf tools: Support running perf binaries with a dash in their name
perf stat: Wait for the correct child

Taeung Song (1):
perf config: Check not only section->from_system_config but also item's


tools/include/linux/compiler-gcc.h | 9 ++++++---
tools/lib/api/Makefile | 8 +++++++-
tools/perf/builtin-config.c | 2 +-
tools/perf/builtin-stat.c | 2 +-
tools/perf/perf.c | 14 ++++++++++----
tools/perf/tests/dwarf-unwind.c | 2 +-
tools/perf/ui/progress.c | 9 +++++++--
tools/perf/util/data.c | 13 ++++++++++++-
8 files changed, 45 insertions(+), 14 deletions(-)

diff --git a/tools/include/linux/compiler-gcc.h b/tools/include/linux/compiler-gcc.h
index bd39b2090ad1..3723b9f8f964 100644
--- a/tools/include/linux/compiler-gcc.h
+++ b/tools/include/linux/compiler-gcc.h
@@ -21,11 +21,14 @@
#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))

#define noinline __attribute__((noinline))
-
+#ifndef __packed
#define __packed __attribute__((packed))
-
+#endif
+#ifndef __noreturn
#define __noreturn __attribute__((noreturn))
-
+#endif
+#ifndef __aligned
#define __aligned(x) __attribute__((aligned(x)))
+#endif
#define __printf(a, b) __attribute__((format(printf, a, b)))
#define __scanf(a, b) __attribute__((format(scanf, a, b)))
diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
index 4563ba7ede6f..1e83e3c07448 100644
--- a/tools/lib/api/Makefile
+++ b/tools/lib/api/Makefile
@@ -17,13 +17,19 @@ MAKEFLAGS += --no-print-directory
LIBFILE = $(OUTPUT)libapi.a

CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
-CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
+CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -fPIC

+ifeq ($(DEBUG),0)
ifeq ($(CC_NO_CLANG), 0)
CFLAGS += -O3
else
CFLAGS += -O6
endif
+endif
+
+ifeq ($(DEBUG),0)
+ CFLAGS += -D_FORTIFY_SOURCE
+endif

# Treat warnings as errors unless directed not to
ifneq ($(WERROR),0)
diff --git a/tools/perf/builtin-config.c b/tools/perf/builtin-config.c
index 3ddcc6e2abeb..a1d82e33282c 100644
--- a/tools/perf/builtin-config.c
+++ b/tools/perf/builtin-config.c
@@ -59,7 +59,7 @@ static int set_config(struct perf_config_set *set, const char *file_name,
fprintf(fp, "[%s]\n", section->name);

perf_config_items__for_each_entry(&section->items, item) {
- if (!use_system_config && section->from_system_config)
+ if (!use_system_config && item->from_system_config)
continue;
if (item->value)
fprintf(fp, "\t%s = %s\n",
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 85e992d9215b..69523ed55894 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -707,7 +707,7 @@ static int __run_perf_stat(int argc, const char **argv)
process_interval();
}
}
- wait(&status);
+ waitpid(child_pid, &status, 0);

if (workload_exec_errno) {
const char *emsg = str_error_r(workload_exec_errno, msg, sizeof(msg));
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index e0279babe0c0..2f19e03c5c40 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -467,15 +467,21 @@ int main(int argc, const char **argv)
* - cannot execute it externally (since it would just do
* the same thing over again)
*
- * So we just directly call the internal command handler, and
- * die if that one cannot handle it.
+ * So we just directly call the internal command handler. If that one
+ * fails to handle this, then maybe we just run a renamed perf binary
+ * that contains a dash in its name. To handle this scenario, we just
+ * fall through and ignore the "xxxx" part of the command string.
*/
if (strstarts(cmd, "perf-")) {
cmd += 5;
argv[0] = cmd;
handle_internal_command(argc, argv);
- fprintf(stderr, "cannot handle %s internally", cmd);
- goto out;
+ /*
+ * If the command is handled, the above function does not
+ * return undo changes and fall through in such a case.
+ */
+ cmd -= 5;
+ argv[0] = cmd;
}
if (strstarts(cmd, "trace")) {
#ifdef HAVE_LIBAUDIT_SUPPORT
diff --git a/tools/perf/tests/dwarf-unwind.c b/tools/perf/tests/dwarf-unwind.c
index 2a7b9b47bbcb..9ba1d216a89f 100644
--- a/tools/perf/tests/dwarf-unwind.c
+++ b/tools/perf/tests/dwarf-unwind.c
@@ -6,7 +6,7 @@
#include "debug.h"
#include "machine.h"
#include "event.h"
-#include "unwind.h"
+#include "../util/unwind.h"
#include "perf_regs.h"
#include "map.h"
#include "thread.h"
diff --git a/tools/perf/ui/progress.c b/tools/perf/ui/progress.c
index a0f24c7115c5..ae91c8148edf 100644
--- a/tools/perf/ui/progress.c
+++ b/tools/perf/ui/progress.c
@@ -1,3 +1,4 @@
+#include <linux/kernel.h>
#include "../cache.h"
#include "progress.h"

@@ -14,10 +15,14 @@ struct ui_progress_ops *ui_progress__ops = &null_progress__ops;

void ui_progress__update(struct ui_progress *p, u64 adv)
{
+ u64 last = p->curr;
+
p->curr += adv;

if (p->curr >= p->next) {
- p->next += p->step;
+ u64 nr = DIV_ROUND_UP(p->curr - last, p->step);
+
+ p->next += nr * p->step;
ui_progress__ops->update(p);
}
}
@@ -25,7 +30,7 @@ void ui_progress__update(struct ui_progress *p, u64 adv)
void ui_progress__init(struct ui_progress *p, u64 total, const char *title)
{
p->curr = 0;
- p->next = p->step = total / 16;
+ p->next = p->step = total / 16 ?: 1;
p->total = total;
p->title = title;

diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index e84bbc8ec058..263f5a906ba5 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -10,6 +10,16 @@
#include "util.h"
#include "debug.h"

+#ifndef O_CLOEXEC
+#ifdef __sparc__
+#define O_CLOEXEC 0x400000
+#elif defined(__alpha__) || defined(__hppa__)
+#define O_CLOEXEC 010000000
+#else
+#define O_CLOEXEC 02000000
+#endif
+#endif
+
static bool check_pipe(struct perf_data_file *file)
{
struct stat st;
@@ -96,7 +106,8 @@ static int open_file_write(struct perf_data_file *file)
if (check_backup(file))
return -1;

- fd = open(file->path, O_CREAT|O_RDWR|O_TRUNC, S_IRUSR|S_IWUSR);
+ fd = open(file->path, O_CREAT|O_RDWR|O_TRUNC|O_CLOEXEC,
+ S_IRUSR|S_IWUSR);

if (fd < 0)
pr_err("failed to open %s : %s\n", file->path,
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