diff options
Diffstat (limited to 'gcc-4.9/libgo/runtime/go-caller.c')
| -rw-r--r-- | gcc-4.9/libgo/runtime/go-caller.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc-4.9/libgo/runtime/go-caller.c b/gcc-4.9/libgo/runtime/go-caller.c index e97b85097..a3e04240d 100644 --- a/gcc-4.9/libgo/runtime/go-caller.c +++ b/gcc-4.9/libgo/runtime/go-caller.c @@ -7,6 +7,9 @@ /* Implement runtime.Caller. */ #include <stdint.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> #include "backtrace.h" @@ -99,6 +102,7 @@ __go_get_backtrace_state () if (back_state == NULL) { const char *filename; + struct stat s; filename = (const char *) runtime_progname (); @@ -108,6 +112,14 @@ __go_get_backtrace_state () if (__builtin_strchr (filename, '/') == NULL) filename = NULL; + /* If the file is small, then it's not the real executable. + This is specifically to deal with Docker, which uses a bogus + argv[0] (http://gcc.gnu.org/PR61895). It would be nice to + have a better check for whether this file is the real + executable. */ + if (stat (filename, &s) < 0 || s.st_size < 1024) + filename = NULL; + back_state = backtrace_create_state (filename, 1, error_callback, NULL); } runtime_unlock (&back_state_lock); |