diff options
Diffstat (limited to 'executor/common.h')
| -rw-r--r-- | executor/common.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/executor/common.h b/executor/common.h index 490595ce2..2e619065f 100644 --- a/executor/common.h +++ b/executor/common.h @@ -205,7 +205,14 @@ static void use_temporary_dir(void) #include <sys/stat.h> #include <sys/types.h> -static void remove_dir(const char* dir) +// We need to prevent the compiler from unrolling the while loop by using the gcc's noinline attribute +// because otherwise it could trigger the compiler warning about a potential format truncation +// when a filename is constructed with help of snprintf. This warning occurs because by unrolling +// the while loop, the snprintf call will try to concatenate 2 buffers of length FILENAME_MAX and put +// the result into a buffer of length FILENAME_MAX which is apparently not possible. But this is no +// problem in our case because file and directory names should be short enough and fit into a buffer +// of length FILENAME_MAX. +static void __attribute__((noinline)) remove_dir(const char* dir) { DIR* dp = opendir(dir); if (dp == NULL) { |