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perf tools: Fix include for non x86 architectures

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Commit 71ae8aac ("lib: introduce arch optimized hash library") added an
include to <linux/hash.h> for setting up an architecture specific fast
hash.

Since perf includes directly the non-uapi kernel header, it cannot find
<asm/hash.h> on non-x86 and thus prevents perf to be compiled on every
architecture other than x86.

The problem is the inclusion of <asm/hash.h> in hash.h that results in
the following error originating from util/evlist.c:

  fatal error: asm/hash.h: No such file or directory

This commit simply adds an empty <asm/hash.h> stub/file to fix the
compile issue on non-x86 architectures.

As perf does not use any of these new functions, it fixes the
compilation and therefore seems to be the most appropriate solution to
go with.

Signed-off-by: Francesco Fusco <ffusco@redhat.com>
Link: http://lkml.kernel.org/r/2cf8143aad65a6aa6fe30325ef8a65847141afa2.1390829373.git.ffusco@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Francesco Fusco 2014-01-27 14:39:13 +01:00 • committed by Arnaldo Carvalho de Melo
commit 6a02652df5
1 changed files with 6 additions and 0 deletions
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6
tools/perf/util/include/asm/hash.h Normal file
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@ -0,0 +1,6 @@
#ifndef __ASM_GENERIC_HASH_H
#define __ASM_GENERIC_HASH_H
/* Stub */
#endif /* __ASM_GENERIC_HASH_H */