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e477f3f01a
perf tools copy VDSO out of memory. However, on 64-bit machines there may be 32-bit compatibility VDOs also. To copy those requires separate 32-bit executables. This patch adds to the build additional programs perf-read-vdso32 and perf-read-vdsox32 for 32-bit and x32 respectively. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com>, Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1414061124-26830-15-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
35 lines
510 B
C
35 lines
510 B
C
#include <stdio.h>
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#include <string.h>
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#define VDSO__MAP_NAME "[vdso]"
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/*
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* Include definition of find_vdso_map() also used in util/vdso.c for
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* building perf.
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*/
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#include "util/find-vdso-map.c"
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int main(void)
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{
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void *start, *end;
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size_t size, written;
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if (find_vdso_map(&start, &end))
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return 1;
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size = end - start;
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while (size) {
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written = fwrite(start, 1, size, stdout);
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if (!written)
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return 1;
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start += written;
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size -= written;
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}
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if (fflush(stdout))
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return 1;
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return 0;
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}
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