This patch fixes some hurd bits from commit
afcf3cd8eb that added the
__access_noerrno internal symbol. It basically removes the nonrequired
__hurd_fail_noerrno (since the 'err' argument is ignored) and fixes
a typo for EACCES.
However, as stated on maillist [1] this __access_noerrno may still be
unsafe to run during initialization of tunables on the Hurd. The
access_common calls __hurd_file_name_lookup, which calls
__hurd_file_name_lookup_retry, which can set errno.
[1] https://sourceware.org/ml/libc-alpha/2016-11/msg00646.html
+2016-11-18 Adhemerval Zanella <adhemerval.zanella@linaro.org>
+
+ * hurd/hurd.h (__hurd_fail_noerrno): Remove function.
+ * include/unistd.h: Extend comment about __access_noerrno return
+ semantics.
+ * sysdeps/match/hurd/access.c (__hurd_fail_noerrno): Return -1.
+ (access_common): Correct typo for EACCES.
+
2016-11-18 Chris Metcalf <cmetcalf@mellanox.com>
* sysdeps/tile/math-tests.h: New file.
errno = err;
return -1;
}
-
-_HURD_H_EXTERN_INLINE int
-__hurd_fail_noerrno (error_t err)
-{
- switch (err)
- {
- case EMACH_SEND_INVALID_DEST:
- case EMIG_SERVER_DIED:
- /* The server has disappeared! */
- err = EIEIO;
- break;
-
- case KERN_NO_SPACE:
- err = ENOMEM;
- break;
-
- case KERN_INVALID_ARGUMENT:
- err = EINVAL;
- break;
-
- case 0:
- return 0;
-
- default:
- break;
- }
-
- return -1;
-}
\f
/* Basic ports and info, initialized by startup. */
# if IS_IN (rtld) || !defined SHARED
/* __access variant that does not set errno. Used in very early initialization
- code in libc.a and ld.so. */
+ code in libc.a and ld.so. It follows access return semantics (zero for
+ sucess otherwise a value different than 0). */
extern __typeof (__access) __access_noerrno attribute_hidden;
# endif
static int
hurd_fail_noerrno (error_t err)
{
- return __hurd_fail_noerrno (err);
+ return -1;
}
static int
if (flags & ~allowed)
/* We are not allowed all the requested types of access. */
- return errfunc (EACESS);
+ return errfunc (EACCES);
return 0;
}
/* Test for access to FILE by our real user and group IDs without setting
- errno. */
+ errno. This may be unsafe to run during initialization of tunables
+ since access_common calls __hurd_file_name_lookup, which calls
+ __hurd_file_name_lookup_retry, which can set errno. */
int
__access_noerrno (const char *file, int type)
{