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* [glibc] libsupport: Add 64-bit time_t support for stat functions
@ 2021-06-15 14:07 Adhemerval Zanella
0 siblings, 0 replies; only message in thread
From: Adhemerval Zanella @ 2021-06-15 14:07 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=372d2ef1f9ef67a679ae5143ab3bac8997b80160
commit 372d2ef1f9ef67a679ae5143ab3bac8997b80160
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Fri Feb 26 09:59:27 2021 -0300
libsupport: Add 64-bit time_t support for stat functions
The patch adds redirections for xstat, xlstat, and xfstat when
_TIME_BITS=64 is defined.
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
Diff:
---
support/Makefile | 3 +++
support/support-xfstat-time64.c | 32 ++++++++++++++++++++++++++++++++
support/support-xstat-time64.c | 32 ++++++++++++++++++++++++++++++++
support/xlstat-time64.c | 32 ++++++++++++++++++++++++++++++++
support/xunistd.h | 13 +++++++++++++
5 files changed, 112 insertions(+)
diff --git a/support/Makefile b/support/Makefile
index e27b9b164e..f3ebaa8d2e 100644
--- a/support/Makefile
+++ b/support/Makefile
@@ -40,7 +40,9 @@ libsupport-routines = \
resolv_test \
set_fortify_handler \
support-xfstat \
+ support-xfstat-time64 \
support-xstat \
+ support-xstat-time64 \
support_become_root \
support_can_chroot \
support_capture_subprocess \
@@ -117,6 +119,7 @@ libsupport-routines = \
xlisten \
xlseek \
xlstat \
+ xlstat-time64 \
xmalloc \
xmemstream \
xmkdir \
diff --git a/support/support-xfstat-time64.c b/support/support-xfstat-time64.c
new file mode 100644
index 0000000000..324c5d20d2
--- /dev/null
+++ b/support/support-xfstat-time64.c
@@ -0,0 +1,32 @@
+/* 64-bit time_t stat with error checking.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+/* NB: Non-standard file name to avoid sysdeps override for xstat. */
+
+#include <support/check.h>
+#include <support/xunistd.h>
+#include <sys/stat.h>
+
+#if __TIMESIZE != 64
+void
+xfstat_time64 (int fd, struct __stat64_t64 *result)
+{
+ if (__fstat64_time64 (fd, result) != 0)
+ FAIL_EXIT1 ("__fstat64_time64 (%d): %m", fd);
+}
+#endif
diff --git a/support/support-xstat-time64.c b/support/support-xstat-time64.c
new file mode 100644
index 0000000000..7d0194b98a
--- /dev/null
+++ b/support/support-xstat-time64.c
@@ -0,0 +1,32 @@
+/* 64-bit time_t stat with error checking.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+/* NB: Non-standard file name to avoid sysdeps override for xstat. */
+
+#include <support/check.h>
+#include <support/xunistd.h>
+#include <sys/stat.h>
+
+#if __TIMESIZE != 64
+void
+xstat_time64 (const char *path, struct __stat64_t64 *result)
+{
+ if (__stat64_time64 (path, result) != 0)
+ FAIL_EXIT1 ("__stat64_time64 (\"%s\"): %m", path);
+}
+#endif
diff --git a/support/xlstat-time64.c b/support/xlstat-time64.c
new file mode 100644
index 0000000000..ef4d922635
--- /dev/null
+++ b/support/xlstat-time64.c
@@ -0,0 +1,32 @@
+/* 64-bit time_t stat with error checking.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+/* NB: Non-standard file name to avoid sysdeps override for xstat. */
+
+#include <support/check.h>
+#include <support/xunistd.h>
+#include <sys/stat.h>
+
+#if __TIMESIZE != 64
+void
+xlstat_time64 (const char *path, struct __stat64_t64 *result)
+{
+ if (__lstat64_time64 (path, result) != 0)
+ FAIL_EXIT1 ("__lstat64_time64 (\"%s\"): %m", path);
+}
+#endif
diff --git a/support/xunistd.h b/support/xunistd.h
index c642588c29..e4ade65c85 100644
--- a/support/xunistd.h
+++ b/support/xunistd.h
@@ -24,6 +24,7 @@
#include <sys/cdefs.h>
#include <sys/types.h>
+#include <sys/stat.h>
#include <unistd.h>
__BEGIN_DECLS
@@ -35,9 +36,21 @@ pid_t xwaitpid (pid_t, int *status, int flags);
void xpipe (int[2]);
void xdup2 (int, int);
int xopen (const char *path, int flags, mode_t);
+#ifndef __USE_TIME_BITS64
+# ifdef __USE_FILE_OFFSET64
+void xstat (const char *path, struct stat *);
+void xlstat (const char *path, struct stat *);
+void xfstat (int fd, struct stat *);
+# else
void xstat (const char *path, struct stat64 *);
void xlstat (const char *path, struct stat64 *);
void xfstat (int fd, struct stat64 *);
+# endif
+#else
+void __REDIRECT (xstat, (const char *path, struct stat *), xstat_time64);
+void __REDIRECT (xlstat, (const char *path, struct stat *), xlstat_time64);
+void __REDIRECT (xfstat, (int fd, struct stat *), xfstat_time64);
+#endif
void xmkdir (const char *path, mode_t);
void xchroot (const char *path);
void xunlink (const char *path);
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