diff options
| -rw-r--r-- | tools/perf/util/dso.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c index db634383156c..c30752c7eebb 100644 --- a/tools/perf/util/dso.c +++ b/tools/perf/util/dso.c @@ -159,6 +159,27 @@ static void dso__list_del(struct dso *dso) dso__data_open_cnt--; } +static void close_first_dso(void); + +static int do_open(char *name) +{ + int fd; + + do { + fd = open(name, O_RDONLY); + if (fd >= 0) + return fd; + + pr_debug("dso open failed, mmap: %s\n", strerror(errno)); + if (!dso__data_open_cnt || errno != EMFILE) + break; + + close_first_dso(); + } while (1); + + return -1; +} + static int __open_dso(struct dso *dso, struct machine *machine) { int fd; @@ -177,7 +198,7 @@ static int __open_dso(struct dso *dso, struct machine *machine) return -EINVAL; } - fd = open(name, O_RDONLY); + fd = do_open(name); free(name); return fd; } |