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    perf tools: Avoid build splat for syscall numbers with uclibc · ea1fe3a8
    Vineet Gupta 提交于
    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: NVineet Gupta <vgupta@synopsys.com>
    Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
    Cc: Ingo Molnar <mingo@kernel.org>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Link: http://lkml.kernel.org/r/1421156604-30603-4-git-send-email-vgupta@synopsys.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
    ea1fe3a8
builtin-top.c 32.3 KB