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From: Adhemerval Zanella <azanella@sourceware.org>
To: glibc-cvs@sourceware.org
Subject: [glibc/azanella/y2038] y2038: Use a common definition for shmid_ds
Date: Tue, 23 Feb 2021 12:38:45 +0000 (GMT) [thread overview]
Message-ID: <20210223123845.9D9DE39450ED@sourceware.org> (raw)
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=93391374cc2e8894cf2be8aa4518b8ee18820a08
commit 93391374cc2e8894cf2be8aa4518b8ee18820a08
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Wed Feb 17 18:38:09 2021 -0300
y2038: Use a common definition for shmid_ds
Instead of replicate the same definitions from struct_shmid64_ds.h
on the multiple struct_shmid_ds.h, use a common header which is included
when required (struct_shmid64_ds_helper.h).
The __USE_TIME_BITS64 is not defined internally yet, although the
internal header is used when building the 64-bit semctl implementation.
Diff:
---
sysdeps/unix/sysv/linux/Makefile | 3 ++-
.../unix/sysv/linux/bits/types/struct_shmid64_ds.h | 9 +-------
.../linux/bits/types/struct_shmid64_ds_helper.h | 26 ++++++++++++++++++++++
.../unix/sysv/linux/bits/types/struct_shmid_ds.h | 10 ++++++---
.../sysv/linux/hppa/bits/types/struct_shmid_ds.h | 10 ++++++---
.../sysv/linux/mips/bits/types/struct_shmid_ds.h | 14 +++++++-----
.../linux/powerpc/bits/types/struct_shmid_ds.h | 10 ++++++---
.../sysv/linux/sparc/bits/types/struct_shmid_ds.h | 10 ++++++---
8 files changed, 66 insertions(+), 26 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index e95ae08095..3ce4f089c3 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -103,7 +103,8 @@ sysdep_headers += sys/mount.h sys/acct.h \
bits/struct_stat.h \
bits/struct_stat_time64_helper.h \
bits/types/struct_msqid64_ds_helper.h \
- bits/types/struct_semid64_ds_helper.h
+ bits/types/struct_semid64_ds_helper.h \
+ bits/types/struct_shmid64_ds_helper.h
tests += tst-clone tst-clone2 tst-clone3 tst-fanotify tst-personality \
tst-quota tst-sync_file_range tst-sysconf-iov_max tst-ttyname \
diff --git a/sysdeps/unix/sysv/linux/bits/types/struct_shmid64_ds.h b/sysdeps/unix/sysv/linux/bits/types/struct_shmid64_ds.h
index 71100db1b5..a4af8cc5f4 100644
--- a/sysdeps/unix/sysv/linux/bits/types/struct_shmid64_ds.h
+++ b/sysdeps/unix/sysv/linux/bits/types/struct_shmid64_ds.h
@@ -25,13 +25,6 @@
#else
struct __shmid64_ds
{
- struct ipc_perm shm_perm; /* operation permission struct */
- size_t shm_segsz; /* size of segment in bytes */
- __time64_t shm_atime; /* time of last shmat() */
- __time64_t shm_dtime; /* time of last shmdt() */
- __time64_t shm_ctime; /* time of last change by shmctl() */
- __pid_t shm_cpid; /* pid of creator */
- __pid_t shm_lpid; /* pid of last shmop */
- shmatt_t shm_nattch; /* number of current attaches */
+# include <bits/types/struct_shmid64_ds_helper.h>
};
#endif
diff --git a/sysdeps/unix/sysv/linux/bits/types/struct_shmid64_ds_helper.h b/sysdeps/unix/sysv/linux/bits/types/struct_shmid64_ds_helper.h
new file mode 100644
index 0000000000..8ab0937c4d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bits/types/struct_shmid64_ds_helper.h
@@ -0,0 +1,26 @@
+/* Common definitions for struct semid_ds with 64 bit time.
+ Copyright (C) 2020-2021 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/>. */
+
+ struct ipc_perm shm_perm; /* operation permission struct */
+ size_t shm_segsz; /* size of segment in bytes */
+ __time64_t shm_atime; /* time of last shmat() */
+ __time64_t shm_dtime; /* time of last shmdt() */
+ __time64_t shm_ctime; /* time of last change by shmctl() */
+ __pid_t shm_cpid; /* pid of creator */
+ __pid_t shm_lpid; /* pid of last shmop */
+ shmatt_t shm_nattch; /* number of current attaches */
diff --git a/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h
index 2bd587d2b0..5f8ac6257b 100644
--- a/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h
+++ b/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h
@@ -23,23 +23,27 @@
/* Data structure describing a shared memory segment. */
struct shmid_ds
{
+#ifdef __USE_TIME_BITS64
+# include <bits/types/struct_shmid64_ds_helper.h>
+#else
struct ipc_perm shm_perm; /* operation permission struct */
size_t shm_segsz; /* size of segment in bytes */
-#if __TIMESIZE == 32
+# if __TIMESIZE == 32
__time_t shm_atime; /* time of last shmat() */
unsigned long int __shm_atime_high;
__time_t shm_dtime; /* time of last shmdt() */
unsigned long int __shm_dtime_high;
__time_t shm_ctime; /* time of last change by shmctl() */
unsigned long int __shm_ctime_high;
-#else
+# else
__time_t shm_atime; /* time of last shmat() */
__time_t shm_dtime; /* time of last shmdt() */
__time_t shm_ctime; /* time of last change by shmctl() */
-#endif
+# endif
__pid_t shm_cpid; /* pid of creator */
__pid_t shm_lpid; /* pid of last shmop */
shmatt_t shm_nattch; /* number of current attaches */
__syscall_ulong_t __glibc_reserved5;
__syscall_ulong_t __glibc_reserved6;
+#endif
};
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h
index 47ff80ebb0..7831fd7340 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h
@@ -23,8 +23,11 @@
/* Data structure describing a shared memory segment. */
struct shmid_ds
{
+#ifdef __USE_TIME_BITS64
+# include <bits/types/struct_shmid64_ds_helper.h>
+#else
struct ipc_perm shm_perm; /* operation permission struct */
-#if __TIMESIZE == 32
+# if __TIMESIZE == 32
unsigned long int __shm_atime_high;
__time_t shm_atime; /* time of last shmat() */
unsigned long int __shm_dtime_high;
@@ -32,15 +35,16 @@ struct shmid_ds
unsigned long int __shm_ctime_high;
__time_t shm_ctime; /* time of last change by shmctl() */
unsigned long int __glibc_reserved4;
-#else
+# else
__time_t shm_atime; /* time of last shmat() */
__time_t shm_dtime; /* time of last shmdt() */
__time_t shm_ctime; /* time of last change by shmctl() */
-#endif
+# endif
size_t shm_segsz; /* size of segment in bytes */
__pid_t shm_cpid; /* pid of creator */
__pid_t shm_lpid; /* pid of last shmop */
shmatt_t shm_nattch; /* number of current attaches */
__syscall_ulong_t __glibc_reserved5;
__syscall_ulong_t __glibc_reserved6;
+#endif
};
diff --git a/sysdeps/unix/sysv/linux/mips/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/mips/bits/types/struct_shmid_ds.h
index 7f8f3b9c51..0691a610ae 100644
--- a/sysdeps/unix/sysv/linux/mips/bits/types/struct_shmid_ds.h
+++ b/sysdeps/unix/sysv/linux/mips/bits/types/struct_shmid_ds.h
@@ -23,27 +23,31 @@
/* Data structure describing a shared memory segment. */
struct shmid_ds
{
+#ifdef __USE_TIME_BITS64
+# include <bits/types/struct_shmid64_ds_helper.h>
+#else
struct ipc_perm shm_perm; /* operation permission struct */
size_t shm_segsz; /* size of segment in bytes */
-#if __TIMESIZE == 32
+# if __TIMESIZE == 32
__time_t shm_atime; /* time of last shmat() */
__time_t shm_dtime; /* time of last shmdt() */
__time_t shm_ctime; /* time of last change by shmctl() */
-#else
+# else
__time_t shm_atime; /* time of last shmat() */
__time_t shm_dtime; /* time of last shmdt() */
__time_t shm_ctime; /* time of last change by shmctl() */
-#endif
+# endif
__pid_t shm_cpid; /* pid of creator */
__pid_t shm_lpid; /* pid of last shmop */
shmatt_t shm_nattch; /* number of current attaches */
-#if __TIMESIZE == 32
+# if __TIMESIZE == 32
unsigned short int __shm_atime_high;
unsigned short int __shm_dtime_high;
unsigned short int __shm_ctime_high;
unsigned short int __glibc_reserved4;
-#else
+# else
__syscall_ulong_t __glibc_reserved5;
__syscall_ulong_t __glibc_reserved6;
+# endif
#endif
};
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_shmid_ds.h
index d71bdf1ecf..316d43ec99 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_shmid_ds.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_shmid_ds.h
@@ -23,8 +23,11 @@
/* Data structure describing a shared memory segment. */
struct shmid_ds
{
+#ifdef __USE_TIME_BITS64
+# include <bits/types/struct_shmid64_ds_helper.h>
+#else
struct ipc_perm shm_perm; /* operation permission struct */
-#if __TIMESIZE == 32
+# if __TIMESIZE == 32
unsigned long int __shm_atime_high;
__time_t shm_atime; /* time of last shmat() */
unsigned long int __shm_dtime_high;
@@ -32,15 +35,16 @@ struct shmid_ds
unsigned long int __shm_ctime_high;
__time_t shm_ctime; /* time of last change by shmctl() */
unsigned long int __glibc_reserved4;
-#else
+# else
__time_t shm_atime; /* time of last shmat() */
__time_t shm_dtime; /* time of last shmdt() */
__time_t shm_ctime; /* time of last change by shmctl() */
-#endif
+# endif
size_t shm_segsz; /* size of segment in bytes */
__pid_t shm_cpid; /* pid of creator */
__pid_t shm_lpid; /* pid of last shmop */
shmatt_t shm_nattch; /* number of current attaches */
__syscall_ulong_t __glibc_reserved5;
__syscall_ulong_t __glibc_reserved6;
+#endif
};
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/sparc/bits/types/struct_shmid_ds.h
index 767099803f..86f0cedac3 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/types/struct_shmid_ds.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/types/struct_shmid_ds.h
@@ -23,23 +23,27 @@
/* Data structure describing a shared memory segment. */
struct shmid_ds
{
+#ifdef __USE_TIME_BITS64
+# include <bits/types/struct_shmid64_ds_helper.h>
+#else
struct ipc_perm shm_perm; /* operation permission struct */
-#if __TIMESIZE == 32
+# if __TIMESIZE == 32
unsigned long int __shm_atime_high;
__time_t shm_atime; /* time of last shmat() */
unsigned long int __shm_dtime_high;
__time_t shm_dtime; /* time of last shmdt() */
unsigned long int __shm_ctime_high;
__time_t shm_ctime; /* time of last change by shmctl() */
-#else
+# else
__time_t shm_atime; /* time of last shmat() */
__time_t shm_dtime; /* time of last shmdt() */
__time_t shm_ctime; /* time of last change by shmctl() */
-#endif
+# endif
size_t shm_segsz; /* size of segment in bytes */
__pid_t shm_cpid; /* pid of creator */
__pid_t shm_lpid; /* pid of last shmop */
shmatt_t shm_nattch; /* number of current attaches */
__syscall_ulong_t __glibc_reserved5;
__syscall_ulong_t __glibc_reserved6;
+#endif
};
next reply other threads:[~2021-02-23 12:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-23 12:38 Adhemerval Zanella [this message]
2021-02-23 20:40 Adhemerval Zanella
2021-02-26 20:43 Adhemerval Zanella
2021-03-01 17:38 Adhemerval Zanella
2021-03-02 12:33 Adhemerval Zanella
2021-03-04 11:31 Adhemerval Zanella
2021-03-04 17:39 Adhemerval Zanella
2021-03-05 19:20 Adhemerval Zanella
2021-05-26 16:25 Adhemerval Zanella
2021-06-08 20:49 Adhemerval Zanella
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