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* [PATCH] perf tools: Fix build error on zfree()
@ 2014-01-09 14:07 Namhyung Kim
  2014-01-13 18:00 ` Arnaldo Carvalho de Melo
  2014-01-16 13:37 ` [tip:perf/core] perf tools: Fix build error due to zfree() cast tip-bot for Namhyung Kim
  0 siblings, 2 replies; 4+ messages in thread
From: Namhyung Kim @ 2014-01-09 14:07 UTC (permalink / raw)
  To: Arnaldo Carvalho de Melo; +Cc: Ingo Molnar, Peter Zijlstra, LKML, Namhyung Kim

It failed to build perf on my ubuntu 10.04 box (gcc 4.4.3):

    CC       util/strlist.o
  cc1: warnings being treated as errors
  util/strlist.c: In function ‘str_node__delete’:
  util/strlist.c:42: error: dereferencing type-punned pointer will break strict-aliasing rules
  util/strlist.c:42: error: dereferencing type-punned pointer will break strict-aliasing rules
    CC       util/strfilter.o
  make: *** [util/strlist.o] Error 1

    CC       util/srcline.o
  cc1: warnings being treated as errors
  util/srcline.c: In function ‘addr2line_init’:
  util/srcline.c:132: error: dereferencing type-punned pointer will break strict-aliasing rules
  util/srcline.c:132: error: dereferencing type-punned pointer will break strict-aliasing rules
  util/srcline.c: In function ‘addr2line_cleanup’:
  util/srcline.c:143: error: dereferencing type-punned pointer will break strict-aliasing rules
  util/srcline.c:143: error: dereferencing type-punned pointer will break strict-aliasing rules
  make: *** [util/srcline.o] Error 1

It seems it only allows to remove 'const' qualifier.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/srcline.c |    4 ++--
 tools/perf/util/strlist.c |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index 7e67879ebd25..f3e4bc5fe5d2 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -129,7 +129,7 @@ static struct a2l_data *addr2line_init(const char *path)
 
 out:
 	if (a2l) {
-		zfree((void **)&a2l->input);
+		zfree((char **)&a2l->input);
 		free(a2l);
 	}
 	bfd_close(abfd);
@@ -140,7 +140,7 @@ static void addr2line_cleanup(struct a2l_data *a2l)
 {
 	if (a2l->abfd)
 		bfd_close(a2l->abfd);
-	zfree((void **)&a2l->input);
+	zfree((char **)&a2l->input);
 	zfree(&a2l->syms);
 	free(a2l);
 }
diff --git a/tools/perf/util/strlist.c b/tools/perf/util/strlist.c
index 61a90bf24b4d..71f9d102b96f 100644
--- a/tools/perf/util/strlist.c
+++ b/tools/perf/util/strlist.c
@@ -39,7 +39,7 @@ out_delete:
 static void str_node__delete(struct str_node *snode, bool dupstr)
 {
 	if (dupstr)
-		zfree((void **)&snode->s);
+		zfree((char **)&snode->s);
 	free(snode);
 }
 
-- 
1.7.9.2


^ permalink raw reply related	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2014-01-16 13:44 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2014-01-09 14:07 [PATCH] perf tools: Fix build error on zfree() Namhyung Kim
2014-01-13 18:00 ` Arnaldo Carvalho de Melo
2014-01-14 14:21   ` Namhyung Kim
2014-01-16 13:37 ` [tip:perf/core] perf tools: Fix build error due to zfree() cast tip-bot for Namhyung Kim

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