blob: f9baa7bd3c19336a36fb2d389c986707505d0f6f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
From: Ben Hutchings <ben@decadent.org.uk>
Date: Sat, 22 Jul 2017 17:37:33 +0100
Subject: perf tools: Fix unwind build on i386
Forwarded: no
EINVAL may not be defined when building unwind-libunwind.c with
REMOTE_UNWIND_LIBUNWIND, resulting in a compiler error in
LIBUNWIND__ARCH_REG_ID(). Its only caller, access_reg(), only checks
for a negative return value and doesn't care what it is. So change
-EINVAL to -1.
Fixes: 52ffe0ff02fc ("Support x86(32-bit) cross platform callchain unwind.")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
--- a/tools/perf/arch/x86/util/unwind-libunwind.c
+++ b/tools/perf/arch/x86/util/unwind-libunwind.c
@@ -66,7 +66,7 @@ int LIBUNWIND__ARCH_REG_ID(int regnum)
break;
default:
pr_err("unwind: invalid reg id %d\n", regnum);
- return -EINVAL;
+ return -1;
}
return id;
@@ -106,7 +106,7 @@ int LIBUNWIND__ARCH_REG_ID(int regnum)
break;
default:
pr_err("unwind: invalid reg id %d\n", regnum);
- return -EINVAL;
+ return -1;
}
return id;
|
