diff options
Diffstat (limited to 'gcc/gcov-io.c')
| -rw-r--r-- | gcc/gcov-io.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/gcov-io.c b/gcc/gcov-io.c index 80c9082..21ca394 100644 --- a/gcc/gcov-io.c +++ b/gcc/gcov-io.c @@ -137,6 +137,8 @@ gcov_open (const char *name, int mode) s_flock.l_start = 0; s_flock.l_len = 0; /* Until EOF. */ s_flock.l_pid = getpid (); +#elif GCOV_LOCKED_WITH_LOCKING + int fd; #endif gcov_nonruntime_assert (!gcov_var.file); @@ -175,6 +177,34 @@ gcov_open (const char *name, int mode) close (fd); return 0; } +#elif GCOV_LOCKED_WITH_LOCKING + if (mode > 0) + { + /* pass mode (ignored) for compatibility */ + fd = open (name, O_RDONLY | O_BINARY, S_IRUSR | S_IWUSR); + } + else + { + /* Truncate if force new mode. */ + fd = open (name, O_RDWR | O_BINARY | O_CREAT | (mode < 0 ? O_TRUNC : 0), + 0666); + } + if (fd < 0) + return 0; + + if (_locking (fd, _LK_LOCK, LONG_MAX) < 0) + { + close (fd); + return 0; + } + + gcov_var.file = fdopen (fd, (mode > 0) ? "rb" : "r+b"); + + if (!gcov_var.file) + { + close (fd); + return 0; + } #else if (mode >= 0) /* Open an existing file. */ |