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| author | Wang Nan <wangnan0@huawei.com> | 2016-02-24 11:20:44 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-02-24 11:38:01 -0300 |
| commit | c339b1a90e6cd638a1d99cbbf49d870ce233198e (patch) | |
| tree | 2d21e73f202192ab2c487d91d75675d694103dea /tools/perf/util/util.c | |
| parent | c19ac91245a2f8d26aafd7f23256f3b76314d5d4 (diff) | |
| download | op-kernel-dev-c339b1a90e6cd638a1d99cbbf49d870ce233198e.zip op-kernel-dev-c339b1a90e6cd638a1d99cbbf49d870ce233198e.tar.gz | |
perf tools: Make binary data printer code in trace_event public available
Move code printing binray data from trace_event() to utils.c and allows
passing different printer. Further commits will use this logic to print
bpf output event.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1456312845-111583-2-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/util.c')
| -rw-r--r-- | tools/perf/util/util.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index 35b20dd..b7766c5 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -14,6 +14,7 @@ #include <limits.h> #include <byteswap.h> #include <linux/kernel.h> +#include <linux/log2.h> #include <unistd.h> #include "callchain.h" #include "strlist.h" @@ -670,3 +671,39 @@ int fetch_current_timestamp(char *buf, size_t sz) return 0; } + +void print_binary(unsigned char *data, size_t len, + size_t bytes_per_line, print_binary_t printer, + void *extra) +{ + size_t i, j, mask; + + if (!printer) + return; + + bytes_per_line = roundup_pow_of_two(bytes_per_line); + mask = bytes_per_line - 1; + + printer(BINARY_PRINT_DATA_BEGIN, 0, extra); + for (i = 0; i < len; i++) { + if ((i & mask) == 0) { + printer(BINARY_PRINT_LINE_BEGIN, -1, extra); + printer(BINARY_PRINT_ADDR, i, extra); + } + + printer(BINARY_PRINT_NUM_DATA, data[i], extra); + + if (((i & mask) == mask) || i == len - 1) { + for (j = 0; j < mask-(i & mask); j++) + printer(BINARY_PRINT_NUM_PAD, -1, extra); + + printer(BINARY_PRINT_SEP, i, extra); + for (j = i & ~mask; j <= i; j++) + printer(BINARY_PRINT_CHAR_DATA, data[j], extra); + for (j = 0; j < mask-(i & mask); j++) + printer(BINARY_PRINT_CHAR_PAD, i, extra); + printer(BINARY_PRINT_LINE_END, -1, extra); + } + } + printer(BINARY_PRINT_DATA_END, -1, extra); +} |
