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tests: Use readdir64 when _FILE_OFFSET_BITS set

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On 32 bit systems, _FILE_OFFSET_BITS will be set to 64 by
AC_SYS_LARGEFILE. This causes the glibc headers to use readdir64 rather
than readdir. Emulate that behavior in the preloader or the tests will
all fail with "No such file or directory".
This commit is contained in:
Dan Nicholson 2015-06-03 12:34:37 -07:00 committed by Colin Walters
parent 7aa23d53cd
commit 2e0521804d
1 changed files with 13 additions and 2 deletions
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15
tests/readdir-rand.c
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@ -30,6 +30,17 @@
#include <sys/stat.h>
#include <glib.h>
/* Glibc uses readdir64 when _FILE_OFFSET_BITS == 64 as set by
* AC_SYS_LARGEFILE on 32 bit systems.
*/
#if defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)
# define READDIR "readdir64"
# define READDIR_R "readdir64_r"
#else
# define READDIR "readdir"
# define READDIR_R "readdir_r"
#endif
static GHashTable *direntcache;
static GMutex direntcache_lock;
static gsize initialized;
@ -69,7 +80,7 @@ ensure_initialized (void)
struct dirent *
readdir (DIR *dirp)
{
struct dirent *(*real_readdir)(DIR *dirp) = dlsym (RTLD_NEXT, "readdir");
struct dirent *(*real_readdir)(DIR *dirp) = dlsym (RTLD_NEXT, READDIR);
struct dirent *ret;
gboolean cache_another = TRUE;
@ -186,7 +197,7 @@ rewinddir (DIR *dirp)
int
readdir_r (DIR *dirp, struct dirent *entry, struct dirent **result)
{
int (*real_readdir_r)(DIR *dirp, struct dirent *entry, struct dirent **result) = dlsym (RTLD_NEXT, "readdir_r");
int (*real_readdir_r)(DIR *dirp, struct dirent *entry, struct dirent **result) = dlsym (RTLD_NEXT, READDIR_R);
ensure_initialized ();