From: Tobias Burnus <tobias@codesourcery.com>
To: gcc-patches <gcc-patches@gcc.gnu.org>,
fortran <fortran@gcc.gnu.org>, Jerry D <jvdelisle2@gmail.com>,
NightStrike <nightstrike@gmail.com>
Subject: [Patch] gfortran.dg/read_dir.f90: Make PASS on Windows
Date: Mon, 19 Dec 2022 10:09:09 +0100 [thread overview]
Message-ID: <c8e44598-adb6-8b3a-292b-6bef4622c86a@codesourcery.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 696 bytes --]
As discussed in #gfortran IRC, on Windows opening a directory fails with EACCESS.
(It works under Cygwin - nightstrike was so kind to test this.)
Additionally, '[ -d dir ] || mkdir dir' is also not very portable.
Hence, I use an auxiliary C file calling the POSIX functions and
expect a fail for non-Cygwin windows.
Comments? Suggestions? - If there aren't any, I plan to commit it
as obvious tomorrow.
Tobias
-----------------
Siemens Electronic Design Automation GmbH; Anschrift: Arnulfstraße 201, 80634 München; Gesellschaft mit beschränkter Haftung; Geschäftsführer: Thomas Heurung, Frank Thürauf; Sitz der Gesellschaft: München; Registergericht München, HRB 106955
[-- Attachment #2: fix-read_dir.diff --]
[-- Type: text/x-patch, Size: 3633 bytes --]
gfortran.dg/read_dir.f90: Make PASS on Windows
Call POSIX's stat/mkdir/rmdir instead of using the shell via 'call system'.
Additionally, expect EACCESS on non-Cygwin Windows as documented for trying
to open a directory.
gcc/testsuite/ChangeLog:
* gfortran.dg/read_dir-aux.c: New; provides my_mkdir and my_rmdir.
* gfortran.dg/read_dir.f90: Call my_mkdir/my_rmdir; expect
error on Windows when opening a directory.
gcc/testsuite/gfortran.dg/read_dir-aux.c | 39 +++++++++++++++++++++++++++++
gcc/testsuite/gfortran.dg/read_dir.f90 | 43 ++++++++++++++++++++++++++++----
2 files changed, 77 insertions(+), 5 deletions(-)
diff --git a/gcc/testsuite/gfortran.dg/read_dir-aux.c b/gcc/testsuite/gfortran.dg/read_dir-aux.c
new file mode 100644
index 00000000000..e8404478517
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/read_dir-aux.c
@@ -0,0 +1,39 @@
+#include <sys/stat.h> /* For mkdir + permission bits. */
+#include <unistd.h> /* For rmdir. */
+#include <errno.h> /* For errno. */
+#include <stdio.h> /* For perror. */
+#include <stdlib.h> /* For abort. */
+
+
+void
+my_mkdir (const char *dir)
+{
+ int err;
+ struct stat path_stat;
+
+ /* Check whether 'dir' exists and is a directory. */
+ err = stat (dir, &path_stat);
+ if (err && errno != ENOENT)
+ {
+ perror ("my_mkdir: failed to call stat for directory");
+ abort ();
+ }
+ if (err == 0 && !S_ISDIR (path_stat.st_mode))
+ {
+ printf ("my_mkdir: pathname %s is not a directory\n", dir);
+ abort ();
+ }
+
+ err = mkdir (dir, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
+ if (err != 0)
+ {
+ perror ("my_mkdir: failed to create directory");
+ abort ();
+ }
+}
+
+void
+my_rmdir (const char *dir)
+{
+ rmdir (dir);
+}
diff --git a/gcc/testsuite/gfortran.dg/read_dir.f90 b/gcc/testsuite/gfortran.dg/read_dir.f90
index c7ddc51fb90..3a8ff6adbc7 100644
--- a/gcc/testsuite/gfortran.dg/read_dir.f90
+++ b/gcc/testsuite/gfortran.dg/read_dir.f90
@@ -1,18 +1,51 @@
! { dg-do run }
+! { dg-additional-options "-cpp" }
+! { dg-additional-sources read_dir-aux.c }
+!
! PR67367
+
program bug
+ use iso_c_binding
implicit none
+
+ interface
+ subroutine my_mkdir(s) bind(C)
+ ! Call POSIX's mkdir - and ignore fails due to
+ ! existing directories but fail otherwise
+ import
+ character(len=1,kind=c_char) :: s(*)
+ end subroutine
+ subroutine my_rmdir(s) bind(C)
+ ! Call POSIX's rmdir - and ignore fails
+ import
+ character(len=1,kind=c_char) :: s(*)
+ end subroutine
+ end interface
+
+ character(len=*), parameter :: sdir = "junko.dir"
+ character(len=*,kind=c_char), parameter :: c_sdir = sdir // c_null_char
+
character(len=1) :: c
- character(len=256) :: message
integer ios
- call system('[ -d junko.dir ] || mkdir junko.dir')
- open(unit=10, file='junko.dir',iostat=ios,action='read',access='stream')
+
+ call my_mkdir(c_sdir)
+ open(unit=10, file=sdir,iostat=ios,action='read',access='stream')
+
+#if defined(__MINGW32__)
+ ! Windows is documented to fail with EACCESS when trying to open a directory
+ ! Note: Testing showed that __CYGWIN__ does permit opening directories
+ call my_rmdir(c_sdir)
+ if (ios == 0) &
+ stop 3 ! Expected EACCESS
+ stop 0 ! OK
+#endif
+
if (ios.ne.0) then
- call system('rmdir junko.dir')
+ call my_rmdir(c_sdir)
STOP 1
end if
read(10, iostat=ios) c
- if (ios.ne.21.and.ios.ne.0) then
+ if (ios.ne.21.and.ios.ne.0) then ! EISDIR has often the value 21
close(10, status='delete')
STOP 2
end if
next reply other threads:[~2022-12-19 9:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-19 9:09 Tobias Burnus [this message]
2022-12-19 9:26 ` Tobias Burnus
2022-12-19 10:51 ` Tobias Burnus
2022-12-21 7:18 ` Tobias Burnus
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=c8e44598-adb6-8b3a-292b-6bef4622c86a@codesourcery.com \
--to=tobias@codesourcery.com \
--cc=fortran@gcc.gnu.org \
--cc=gcc-patches@gcc.gnu.org \
--cc=jvdelisle2@gmail.com \
--cc=nightstrike@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).