From c17c2db1f3cea41c3543025905d3582c6937dd95 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Sat, 13 Jun 2009 17:39:23 +0200 Subject: perf annotate: Fixes for filename:line displays - fix addr2line on userspace binary: don't only check kernel image. - fix string allocation size for path: missing ending null char room - fix overflow in symbol extra info Reported-by: Ingo Molnar Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras LKML-Reference: <1244907563-7820-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar --- tools/perf/builtin-annotate.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'tools/perf/builtin-annotate.c') diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 7a5b27867a96..94cea678fd7e 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -1116,7 +1116,7 @@ parse_line(FILE *file, struct symbol *sym, __u64 start, __u64 len) if (offset < len) hits = sym->hist[offset]; - if (sym_ext) { + if (offset < len && sym_ext) { path = sym_ext[offset].path; percent = sym_ext[offset].percent; } else if (sym->hist_sum) @@ -1190,7 +1190,8 @@ static void free_source_line(struct symbol *sym, int len) } /* Get the filename:line for the colored entries */ -static void get_source_line(struct symbol *sym, __u64 start, int len) +static void +get_source_line(struct symbol *sym, __u64 start, int len, char *filename) { int i; char cmd[PATH_MAX * 2]; @@ -1216,7 +1217,7 @@ static void get_source_line(struct symbol *sym, __u64 start, int len) continue; offset = start + i; - sprintf(cmd, "addr2line -e %s %016llx", vmlinux, offset); + sprintf(cmd, "addr2line -e %s %016llx", filename, offset); fp = popen(cmd, "r"); if (!fp) continue; @@ -1224,7 +1225,7 @@ static void get_source_line(struct symbol *sym, __u64 start, int len) if (getline(&path, &line_len, fp) < 0 || !line_len) goto next; - sym_ext[i].path = malloc(sizeof(char) * line_len); + sym_ext[i].path = malloc(sizeof(char) * line_len + 1); if (!sym_ext[i].path) goto next; @@ -1285,7 +1286,7 @@ static void annotate_sym(struct dso *dso, struct symbol *sym) len = sym->end - sym->start; if (print_line) { - get_source_line(sym, start, len); + get_source_line(sym, start, len, filename); print_summary(filename); } -- cgit v1.2.3-59-g8ed1b