https://gcc.gnu.org/g:7232be268a0a275d43225fef141cf99d2f6bbed9
commit r15-1318-g7232be268a0a275d43225fef141cf99d2f6bbed9
Author: Jerome Guitton <guit...@adacore.com>
Date: Fri May 10 13:16:17 2024 +0000
ada: Simplify handling of VxWorks-specific error codes for ENOENT
These error codes were defined on older versions of VxWorks (5, 6, 7
SR0540) and now they are either not defined or they fallback to
ENOENT. To handle these cases without using complex tests against
vxworks versions, leverage on __has_include and provide a fallback to
ENOENT if these error codes are not defined.
gcc/ada/
* sysdep.c (S_dosFsLib_FILE_NOT_FOUND, S_nfsLib_NFSERR_NOENT):
New macros, falback to ENOENT when not already defined.
(__gnat_is_file_not_found_error): Use these new macros to remove
tests against VxWorks flavors.
Diff:
---
gcc/ada/sysdep.c | 27 ++++++++++++++++++++-------
1 file changed, 20 insertions(+), 7 deletions(-)
diff --git a/gcc/ada/sysdep.c b/gcc/ada/sysdep.c
index 443b11f43023..254c736bec43 100644
--- a/gcc/ada/sysdep.c
+++ b/gcc/ada/sysdep.c
@@ -35,18 +35,35 @@
#ifdef __vxworks
#include "vxWorks.h"
#include "ioLib.h"
-#if ! defined (VTHREADS)
+/* VxWorks 5, 6 and 7 SR0540 expose error codes that need to be handled
+ as ENOENT. On later versions:
+ - either they are defined as ENOENT (vx7r2);
+ - or the corresponding system includes are not provided (Helix Cert). */
+
+#if __has_include ("dosFsLib.h")
+/* On helix-cert, this include is only provided for RTPs. */
#include "dosFsLib.h"
#endif
-#if ! defined (__RTP__) && (! defined (VTHREADS) || defined (__VXWORKSMILS__))
+
+#ifndef S_dosFsLib_FILE_NOT_FOUND
+#define S_dosFsLib_FILE_NOT_FOUND ENOENT
+#endif
+
+#if __has_include ("nfsLib.h")
+/* This include is not provided for RTPs or on helix-cert. */
# include "nfsLib.h"
#endif
+
+#ifndef S_nfsLib_NFSERR_NOENT
+#define S_nfsLib_NFSERR_NOENT ENOENT
+#endif
+
#include "selectLib.h"
#include "version.h"
#if defined (__RTP__)
# include "vwModNum.h"
#endif /* __RTP__ */
-#endif
+#endif /* __vxworks */
#ifdef __ANDROID__
#undef __linux__
@@ -912,14 +929,10 @@ __gnat_is_file_not_found_error (int errno_val)
/* In the case of VxWorks, we also have to take into account various
* filesystem-specific variants of this error.
*/
-#if ! defined (VTHREADS) && (_WRS_VXWORKS_MAJOR < 7)
else if (errno_val == S_dosFsLib_FILE_NOT_FOUND)
return 1;
-#endif
-#if ! defined (__RTP__) && (! defined (VTHREADS) || defined (__VXWORKSMILS__))
else if (errno_val == S_nfsLib_NFSERR_NOENT)
return 1;
-#endif
#if defined (__RTP__)
/* An RTP can return an NFS file not found, and the NFS bits must
first be masked on to check the errno. */
