7 files changed, 37 insertions, 10 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index a74227ad082e..e652a3e2929d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10560,6 +10560,8 @@ M:	Peter Zijlstra <peterz@infradead.org>
 M:      Ingo Molnar <mingo@redhat.com>
 M:      Arnaldo Carvalho de Melo <acme@kernel.org>
 R:      Alexander Shishkin <alexander.shishkin@linux.intel.com>
+R:      Jiri Olsa <jolsa@redhat.com>
+R:      Namhyung Kim <namhyung@kernel.org>
 L:      linux-kernel@vger.kernel.org
 T:      git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core
 S:      Supported
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index e397453e5a46..63526f4416ea 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -8,8 +8,8 @@ perf-record - Run a command and record its profile into perf.data
 SYNOPSIS
 --------
 [verse]
-'perf record' [-e <EVENT> | --event=EVENT] [-l] [-a] <command>
-'perf record' [-e <EVENT> | --event=EVENT] [-l] [-a] -- <command> [<options>]
+'perf record' [-e <EVENT> | --event=EVENT] [-a] <command>
+'perf record' [-e <EVENT> | --event=EVENT] [-a] -- <command> [<options>]
 
 DESCRIPTION
 -----------
diff --git a/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh b/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
index 462fc755092e..7a84d73324e3 100755
--- a/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
+++ b/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
@@ -10,6 +10,9 @@
 
 . $(dirname $0)/lib/probe.sh
 
+ld=$(realpath /lib64/ld*.so.* | uniq)
+libc=$(echo $ld | sed 's/ld/libc/g')
+
 trace_libc_inet_pton_backtrace() {
         idx=0
         expected[0]="PING.*bytes"
@@ -18,8 +21,8 @@ trace_libc_inet_pton_backtrace() {
         expected[3]=".*packets transmitted.*"
         expected[4]="rtt min.*"
         expected[5]="[0-9]+\.[0-9]+[[:space:]]+probe_libc:inet_pton:\([[:xdigit:]]+\)"
-        expected[6]=".*inet_pton[[:space:]]\(/usr/lib.*/libc-[0-9]+\.[0-9]+\.so\)$"
-        expected[7]="getaddrinfo[[:space:]]\(/usr/lib.*/libc-[0-9]+\.[0-9]+\.so\)$"
+        expected[6]=".*inet_pton[[:space:]]\($libc\)$"
+        expected[7]="getaddrinfo[[:space:]]\($libc\)$"
         expected[8]=".*\(.*/bin/ping.*\)$"
 
         perf trace --no-syscalls -e probe_libc:inet_pton/max-stack=3/ ping -6 -c 1 ::1 2>&1 | grep -v ^$ | while read line ; do
@@ -35,7 +38,7 @@ trace_libc_inet_pton_backtrace() {
 }
 
 skip_if_no_perf_probe && \
-perf probe -q /lib64/libc-*.so inet_pton && \
+perf probe -q $libc inet_pton && \
 trace_libc_inet_pton_backtrace
 err=$?
 rm -f ${file}
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index ddb2c6fbdf91..db79017a6e56 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -532,7 +532,7 @@ void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
 
 void perf_hpp__column_unregister(struct perf_hpp_fmt *format)
 {
-        list_del(&format->list);
+        list_del_init(&format->list);
 }
 
 void perf_hpp__cancel_cumulate(void)
@@ -606,6 +606,13 @@ next:
 
 static void fmt_free(struct perf_hpp_fmt *fmt)
 {
+        /*
+         * At this point fmt should be completely
+         * unhooked, if not it's a bug.
+         */
+        BUG_ON(!list_empty(&fmt->list));
+        BUG_ON(!list_empty(&fmt->sort_list));
+
         if (fmt->free)
                 fmt->free(fmt);
 }
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index c42edeac451f..dcfdafdc2f1c 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -8,6 +8,9 @@
 
 %{
 #include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
 #include "../perf.h"
 #include "parse-events.h"
 #include "parse-events-bison.h"
@@ -53,9 +56,8 @@ static int str(yyscan_t scanner, int token)
         return token;
 }
 
-static bool isbpf(yyscan_t scanner)
+static bool isbpf_suffix(char *text)
 {
-        char *text = parse_events_get_text(scanner);
         int len = strlen(text);
 
         if (len < 2)
@@ -68,6 +70,17 @@ static bool isbpf(yyscan_t scanner)
         return false;
 }
 
+static bool isbpf(yyscan_t scanner)
+{
+        char *text = parse_events_get_text(scanner);
+        struct stat st;
+
+        if (!isbpf_suffix(text))
+                return false;
+
+        return stat(text, &st) == 0;
+}
+
 /*
  * This function is called when the parser gets two kind of input:
  *
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index a7ebd9fe8e40..76ab0709a20c 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -374,6 +374,8 @@ void perf_tool__fill_defaults(struct perf_tool *tool)
                 tool->mmap2 = process_event_stub;
         if (tool->comm == NULL)
                 tool->comm = process_event_stub;
+        if (tool->namespaces == NULL)
+                tool->namespaces = process_event_stub;
         if (tool->fork == NULL)
                 tool->fork = process_event_stub;
         if (tool->exit == NULL)
diff --git a/tools/perf/util/xyarray.h b/tools/perf/util/xyarray.h
index 4ba726c90870..54af60462130 100644
--- a/tools/perf/util/xyarray.h
+++ b/tools/perf/util/xyarray.h
@@ -23,12 +23,12 @@ static inline void *xyarray__entry(struct xyarray *xy, int x, int y)
 
 static inline int xyarray__max_y(struct xyarray *xy)
 {
-        return xy->max_x;
+        return xy->max_y;
 }
 
 static inline int xyarray__max_x(struct xyarray *xy)
 {
-        return xy->max_y;
+        return xy->max_x;
 }
 
 #endif /* _PERF_XYARRAY_H_ */