32 lines
1.8 KiB
Diff
32 lines
1.8 KiB
Diff
From 8d07027f1d40d85aeb4a410f23819ebb0c216ab3 Mon Sep 17 00:00:00 2001
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From: Ben Hutchings <ben@decadent.org.uk>
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Date: Thu, 8 Jul 2010 02:51:43 +0100
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Subject: [PATCH 3/3] perf: Don't use /dev/null as the output file for libelf test
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On some architectures ld makes a second pass over the output file and
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this won't work.
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Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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---
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tools/perf/Makefile | 4 ++--
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1 files changed, 2 insertions(+), 2 deletions(-)
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diff --git a/tools/perf/Makefile b/tools/perf/Makefile
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index 33b02a5..30fe5e3 100644
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--- a/tools/perf/Makefile
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+++ b/tools/perf/Makefile
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@@ -423,8 +423,8 @@ ifeq ($(uname_S),Darwin)
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PTHREAD_LIBS =
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endif
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-ifeq ($(shell sh -c "(echo '\#include <libelf.h>'; echo 'int main(void) { Elf * elf = elf_begin(0, ELF_C_READ, 0); return (long)elf; }') | $(CC) -x c - $(ALL_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -o /dev/null $(ALL_LDFLAGS) > /dev/null && echo y"), y)
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- ifneq ($(shell sh -c "(echo '\#include <libelf.h>'; echo 'int main(void) { Elf * elf = elf_begin(0, ELF_C_READ_MMAP, 0); return (long)elf; }') | $(CC) -x c - $(ALL_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -o /dev/null $(ALL_LDFLAGS) > /dev/null 2>&1 && echo y"), y)
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+ifeq ($(shell sh -c "(echo '\#include <libelf.h>'; echo 'int main(void) { Elf * elf = elf_begin(0, ELF_C_READ, 0); return (long)elf; }') | $(CC) -x c - $(ALL_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -o dummy $(ALL_LDFLAGS) > /dev/null && echo y; rm -f dummy"), y)
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+ ifneq ($(shell sh -c "(echo '\#include <libelf.h>'; echo 'int main(void) { Elf * elf = elf_begin(0, ELF_C_READ_MMAP, 0); return (long)elf; }') | $(CC) -x c - $(ALL_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -o dummy $(ALL_LDFLAGS) > /dev/null 2>&1 && echo y; rm -f dummy"), y)
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BASIC_CFLAGS += -DLIBELF_NO_MMAP
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endif
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else
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--
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1.7.1
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