[PATCH v2 3/5] perf tools: [uclibc] Avoid build splat for syscall numbers

From: Vineet Gupta
Date: Sat Jan 10 2015 - 06:11:46 EST


This is due to duplicated unistd inclusion (via uClibc headers + kernel headers)
Also seen on ARM uClibc based tools

------- ARC build ---------->8-------------

CC util/evlist.o
In file included from
~/arc/k.org/arch/arc/include/uapi/asm/unistd.h:25:0,
from util/../perf-sys.h:10,
from util/../perf.h:15,
from util/event.h:7,
from util/event.c:3:
~/arc/k.org/include/uapi/asm-generic/unistd.h:906:0:
warning: "__NR_fcntl64" redefined [enabled by default]
#define __NR_fcntl64 __NR3264_fcntl
^
In file included from
~/arc/gnu/INSTALL_1412-arc-2014.12-rc1/arc-snps-linux-uclibc/sysroot/usr/include/sys/syscall.h:24:0,
from util/../perf-sys.h:6,
----------------->8-------------------

------- ARM build ---------->8-------------

CC FPIC plugin_scsi.o
In file included from util/../perf-sys.h:9:0,
from util/../perf.h:15,
from util/cache.h:7,
from perf.c:12:
~/arc/k.org/arch/arm/include/uapi/asm/unistd.h:28:0:
warning: "__NR_restart_syscall" redefined [enabled by default]
In file included from
~/buildroot/host/usr/arm-buildroot-linux-uclibcgnueabi/sysroot/usr/include/sys/syscall.h:25:0,
from util/../perf-sys.h:6,
from util/../perf.h:15,
from util/cache.h:7,
from perf.c:12:
~/buildroot/host/usr/arm-buildroot-linux-uclibcgnueabi/sysroot/usr/include/bits/sysnum.h:17:0:
note: this is the location of the previous definition
----------------->8-------------------

Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx>
---
tools/perf/bench/sched-pipe.c | 1 -
tools/perf/builtin-top.c | 1 -
tools/perf/perf-sys.h | 1 -
3 files changed, 3 deletions(-)

diff --git a/tools/perf/bench/sched-pipe.c b/tools/perf/bench/sched-pipe.c
index 07a8d7646a15..59b1af5b9447 100644
--- a/tools/perf/bench/sched-pipe.c
+++ b/tools/perf/bench/sched-pipe.c
@@ -19,7 +19,6 @@
#include <stdlib.h>
#include <signal.h>
#include <sys/wait.h>
-#include <linux/unistd.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 0aa7747ff139..233ffff1b31b 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -66,7 +66,6 @@
#include <sys/utsname.h>
#include <sys/mman.h>

-#include <linux/unistd.h>
#include <linux/types.h>

static volatile int done;
diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h
index 3183809ff6d9..7b7cb7396b69 100644
--- a/tools/perf/perf-sys.h
+++ b/tools/perf/perf-sys.h
@@ -6,7 +6,6 @@
#include <sys/syscall.h>
#include <linux/types.h>
#include <linux/perf_event.h>
-#include <asm/unistd.h>

#if defined(__i386__)
#define mb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
--
1.9.1

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