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From 57af599929263e7bb6f2f369c9e4bc1e440528a9 Mon Sep 17 00:00:00 2001
From: Bruce Ashfield <bruce.ashfield@windriver.com>
Date: Mon, 21 Aug 2017 13:52:53 -0400
Subject: [PATCH 1/1] perf: x86-32: explicitly include <errno.h>
Upstream-Status: submitted
The 32bit x86 perf build does not find the system definitions of error
return values, hence we end up with:
| In file included from util/libunwind/x86_32.c:32:0:
| util/libunwind/../../arch/x86/util/unwind-libunwind.c: In function 'libunwind__x86_reg_id':
| util/libunwind/../../arch/x86/util/unwind-libunwind.c:109:11: error: 'EINVAL' undeclared (first use in this function); did you mean 'UNW_EINVAL'?
| return -EINVAL;
| ^~~~~~
| UNW_EINVAL
By explicitly including errno.h, we can fix this build without impacting
other architectures.
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
---
tools/perf/util/libunwind/x86_32.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/perf/util/libunwind/x86_32.c b/tools/perf/util/libunwind/x86_32.c
index 957ffff72428..d781f7bdeb88 100644
--- a/tools/perf/util/libunwind/x86_32.c
+++ b/tools/perf/util/libunwind/x86_32.c
@@ -20,6 +20,7 @@
#define LIBUNWIND__ARCH_REG_IP PERF_REG_X86_IP
#define LIBUNWIND__ARCH_REG_SP PERF_REG_X86_SP
+#include <errno.h>
#include "unwind.h"
#include "debug.h"
#include "libunwind-x86.h"
--
2.14.3
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