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    Subject[PATCH 1/2] perf tools: Concatenate strings in expressions
    Date
    The tracepoint event kvm_userspace_exit uses string snippet the C
    compiler concatenates to a big string, e.g. "KVM_EXIT_" "UNKNOWN". The
    parser of the data must do the same and join successive strings.

    print fmt: "reason %s (%d)", … __print_symbolic(REC->reason, { 0, "KVM_EXIT_" "UNKNOWN" }, { 1, "KVM_EXIT_" "EXCEPTION" } …

    Signed-off-by: Jörg Sommer <joerg@alea.gnuu.de>
    ---
    tools/perf/util/trace-event-parse.c | 15 +++++++++++++++
    1 files changed, 15 insertions(+), 0 deletions(-)

    diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
    index 1a8d4dc..185e284 100644
    --- a/tools/perf/util/trace-event-parse.c
    +++ b/tools/perf/util/trace-event-parse.c
    @@ -1726,6 +1726,21 @@ process_arg_token(struct event *event, struct print_arg *arg,
    }
    break;
    case EVENT_DQUOTE:
    + atom = token;
    + type = read_token_item(&token);
    +
    + /* merge with following strings */
    + while (type == EVENT_DQUOTE) {
    + atom = realloc(atom, strlen(atom) + strlen(token) + 1);
    + strcat(atom, token);
    + free_token(token);
    + type = read_token_item(&token);
    + }
    +
    + arg->type = PRINT_ATOM;
    + arg->atom.atom = atom;
    +
    + break;
    case EVENT_SQUOTE:
    arg->type = PRINT_ATOM;
    arg->atom.atom = token;
    --
    1.7.9.1
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