Commit-ID: 75e0b5f010837f29b5773653a248852a7317562b
Gitweb: http://git.kernel.org/tip/75e0b5f010837f29b5773653a248852a7317562b
Author: Wang Nan <wangn...@huawei.com>
AuthorDate: Mon, 19 Jan 2015 20:43:17 +0800
Committer: Arnaldo Carvalho de Melo <a...@redhat.com>
CommitDate: Wed, 21 Jan 2015 10:05:00 -0300
perf scripting perl: Force to use stdbool
When building perf for arm64 I hit a warning (and be treated as an
error) like below:
aarch64-oe-linux-gcc -o .../scripts/perl/Perf-Trace-Util/Context.o -c
-Wbad-function-cast \
... scripts/perl/Perf-Trace-Util/Context.c
In file included from .../usr/lib64/perl/5.14.3/CORE/perl.h:2464:0,
from Context.xs:23:
/.../usr/lib64/perl/5.14.3/CORE/handy.h:108:0: error: "bool" redefined
[-Werror]
# define bool char
^
In file included from /.../usr/src/kernel/tools/include/linux/types.h:4:0,
from
/.../usr/src/kernel/arch/arm64/include/uapi/asm/sigcontext.h:19,
from /.../usr/include/bits/sigcontext.h:27,
from /.../usr/include/signal.h:340,
from /.../usr/include/sys/param.h:28,
from /.../usr/lib64/perl/5.14.3/CORE/perl.h:678,
from Context.xs:23:
/.../usr/lib/aarch64-oe-linux/gcc/aarch64-oe-linux/4.9.2/include/stdbool.h:33:0:
note: this is the location of the previous definition
#define bool _Bool
Looks like the failure is caused by arm64 uapi/asm/sigcontext.h, which
includes linux/types.h while other archs not.
Current perl consider this problem:
http://perl5.git.perl.org/perl.git/commit/bd31be4baa3ee68abdb92c0db3200efe0fad903b
However there are users which use old version of perl.
This patch includes stdbool.h before Context.xs and define HAS_BOOL to
prevent perl'e headers define its own 'bool'. Code is learn from perl's
git tree.
Signed-off-by: Wang Nan <wangn...@huawei.com>
Acked-by: Jiri Olsa <jo...@redhat.com>
Acked-by: Namhyung Kim <namhy...@kernel.org>
Cc: Li Zefan <lize...@huawei.com>
Link:
http://lkml.kernel.org/r/1421671397-4659-1-git-send-email-wangn...@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
tools/perf/scripts/perl/Perf-Trace-Util/Context.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/tools/perf/scripts/perl/Perf-Trace-Util/Context.c
b/tools/perf/scripts/perl/Perf-Trace-Util/Context.c
index 790ceba..28431d1 100644
--- a/tools/perf/scripts/perl/Perf-Trace-Util/Context.c
+++ b/tools/perf/scripts/perl/Perf-Trace-Util/Context.c
@@ -5,7 +5,10 @@
* ANY CHANGES MADE HERE WILL BE LOST!
*
*/
-
+#include <stdbool.h>
+#ifndef HAS_BOOL
+# define HAS_BOOL 1
+#endif
#line 1 "Context.xs"
/*
* Context.xs. XS interfaces for perf script.
--
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