diff options
| -rw-r--r-- | runtime/libprofile/CommonProfiling.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/runtime/libprofile/CommonProfiling.c b/runtime/libprofile/CommonProfiling.c index d55f51c5b4..13e3eb9cf7 100644 --- a/runtime/libprofile/CommonProfiling.c +++ b/runtime/libprofile/CommonProfiling.c @@ -65,6 +65,15 @@ int save_arguments(int argc, const char **argv) { for (Length = 0, i = 0; i != (unsigned)argc; ++i) Length += strlen(argv[i])+1; + // Defensively check for a zero length, even though this is unlikely + // to happen in practice. This avoids calling malloc() below with a + // size of 0. + if (Length == 0) { + SavedArgs = 0; + SavedArgsLength = 0; + return argc; + } + SavedArgs = (char*)malloc(Length); for (Length = 0, i = 0; i != (unsigned)argc; ++i) { unsigned Len = strlen(argv[i]); |