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    Subject[PATCH 08/21] perf evsel: Add option to print stack trace on single line
    Date
    From: David Ahern <dsahern@gmail.com>

    Option is used by upcoming timehist command.

    Signed-off-by: David Ahern <dsahern@gmail.com>
    Cc: Frederic Weisbecker <fweisbec@gmail.com>
    Cc: Ingo Molnar <mingo@kernel.org>
    Cc: Jiri Olsa <jolsa@redhat.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Stephane Eranian <eranian@google.com>
    Link: http://lkml.kernel.org/r/1375930261-77273-11-git-send-email-dsahern@gmail.com
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    ---
    tools/perf/util/session.c | 8 ++++++--
    tools/perf/util/session.h | 1 +
    2 files changed, 7 insertions(+), 2 deletions(-)

    diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
    index e5fd658..0d895e7 100644
    --- a/tools/perf/util/session.c
    +++ b/tools/perf/util/session.c
    @@ -1497,6 +1497,8 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, union perf_event *event,
    int print_sym = print_opts & PRINT_IP_OPT_SYM;
    int print_dso = print_opts & PRINT_IP_OPT_DSO;
    int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET;
    + int print_oneline = print_opts & PRINT_IP_OPT_ONELINE;
    + char s = print_oneline ? ' ' : '\t';

    if (perf_event__preprocess_sample(event, machine, &al, sample,
    NULL) < 0) {
    @@ -1521,7 +1523,7 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, union perf_event *event,
    break;

    if (print_ip)
    - printf("%16" PRIx64, node->ip);
    + printf("%c%16" PRIx64, s, node->ip);

    if (print_sym) {
    printf(" ");
    @@ -1537,7 +1539,9 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, union perf_event *event,
    map__fprintf_dsoname(node->map, stdout);
    printf(")");
    }
    - printf("\n");
    +
    + if (!print_oneline)
    + printf("\n");

    callchain_cursor_advance(&callchain_cursor);
    }
    diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
    index 69e554a..7c00ccb 100644
    --- a/tools/perf/util/session.h
    +++ b/tools/perf/util/session.h
    @@ -45,6 +45,7 @@ struct perf_session {
    #define PRINT_IP_OPT_SYM (1<<1)
    #define PRINT_IP_OPT_DSO (1<<2)
    #define PRINT_IP_OPT_SYMOFFSET (1<<3)
    +#define PRINT_IP_OPT_ONELINE (1<<4)

    struct perf_tool;

    --
    1.8.1.4


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