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-rw-r--r--sysdeps/unix/sysv/linux/bits/resource.h5
-rw-r--r--sysdeps/unix/sysv/linux/i386/sysdep.h4
-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h11
-rw-r--r--sysdeps/unix/sysv/linux/s390/Makefile4
-rw-r--r--sysdeps/unix/sysv/linux/s390/Versions6
-rw-r--r--sysdeps/unix/sysv/linux/s390/bits/libc-vdso.h35
-rw-r--r--sysdeps/unix/sysv/linux/s390/gettimeofday.c42
-rw-r--r--sysdeps/unix/sysv/linux/s390/init-first.c50
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h101
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h102
-rw-r--r--sysdeps/unix/sysv/linux/sparc/bits/resource.h5
11 files changed, 355 insertions, 10 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/resource.h b/sysdeps/unix/sysv/linux/bits/resource.h
index 95d64ed77f..cb3acf1622 100644
--- a/sysdeps/unix/sysv/linux/bits/resource.h
+++ b/sysdeps/unix/sysv/linux/bits/resource.h
@@ -1,5 +1,5 @@
/* Bit values & structures for resource limits. Linux version.
- Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004, 2005
+ Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004, 2005, 2008, 2009
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -158,10 +158,11 @@ enum __rusage_who
#define RUSAGE_SELF RUSAGE_SELF
/* All of its terminated child processes. */
- RUSAGE_CHILDREN = -1,
+ RUSAGE_CHILDREN = -1
#define RUSAGE_CHILDREN RUSAGE_CHILDREN
#ifdef __USE_GNU
+ ,
/* The calling thread. */
RUSAGE_THREAD = 1
# define RUSAGE_THREAD RUSAGE_THREAD
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h
index 89d5b12043..77e6bad105 100644
--- a/sysdeps/unix/sysv/linux/i386/sysdep.h
+++ b/sysdeps/unix/sysv/linux/i386/sysdep.h
@@ -204,9 +204,11 @@
arg 3 %edx call-clobbered
arg 4 %esi call-saved
arg 5 %edi call-saved
+ arg 6 %ebp call-saved
The stack layout upon entering the function is:
+ 24(%esp) Arg# 6
20(%esp) Arg# 5
16(%esp) Arg# 4
12(%esp) Arg# 3
@@ -215,7 +217,7 @@
(%esp) Return address
(Of course a function with say 3 arguments does not have entries for
- arguments 4 and 5.)
+ arguments 4, 5, and 6.)
The following code tries hard to be optimal. A general assumption
(which is true according to the data books I have) is that
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 42b1c105a2..29afe27711 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -1,6 +1,6 @@
/* Set flags signalling availability of kernel features based on given
kernel version number.
- Copyright (C) 1999-2006, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 1999-2006, 2007, 2008, 2009 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
@@ -505,7 +505,7 @@
x86-64, PPC, IA-64, and SPARC in 2.6.27. */
#if __LINUX_KERNEL_VERSION >= 0x02061b \
&& (defined __i386__ || defined __x86_64__ || defined __powerpc__ \
- || defined __ia64__ || defined __sparc__ || __s390__)
+ || defined __ia64__ || defined __sparc__ || defined __s390__)
# define __ASSUME_SOCK_CLOEXEC 1
# define __ASSUME_IN_NONBLOCK 1
# define __ASSUME_PIPE2 1
@@ -514,6 +514,11 @@
/* Support for the accept4 syscall was added in 2.6.28. */
#if __LINUX_KERNEL_VERSION >= 0x02061c \
&& (defined __i386__ || defined __x86_64__ || defined __powerpc__ \
- || defined __ia64__ || defined __sparc__ || __s390__)
+ || defined __ia64__ || defined __sparc__ || defined __s390__)
# define __ASSUME_ACCEPT4 1
#endif
+
+/* Support for the FUTEX_CLOCK_REALTIME flag was added in 2.6.29. */
+#if __LINUX_KERNEL_VERSION >= 0x02061d
+# define __ASSUME_FUTEX_CLOCK_REALTIME 1
+#endif
diff --git a/sysdeps/unix/sysv/linux/s390/Makefile b/sysdeps/unix/sysv/linux/s390/Makefile
index 5c5381871b..72eae688db 100644
--- a/sysdeps/unix/sysv/linux/s390/Makefile
+++ b/sysdeps/unix/sysv/linux/s390/Makefile
@@ -6,3 +6,7 @@ endif
ifeq ($(subdir),stdlib)
gen-as-const-headers += ucontext_i.sym
endif
+
+ifeq ($(subdir),elf)
+sysdep_routines += dl-vdso
+endif
diff --git a/sysdeps/unix/sysv/linux/s390/Versions b/sysdeps/unix/sysv/linux/s390/Versions
new file mode 100644
index 0000000000..627ff53529
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/Versions
@@ -0,0 +1,6 @@
+libc {
+ GLIBC_PRIVATE {
+ __vdso_clock_gettime;
+ __vdso_clock_getres;
+ }
+}
diff --git a/sysdeps/unix/sysv/linux/s390/bits/libc-vdso.h b/sysdeps/unix/sysv/linux/s390/bits/libc-vdso.h
new file mode 100644
index 0000000000..f289f9a87c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/bits/libc-vdso.h
@@ -0,0 +1,35 @@
+/* Resolve function pointers to VDSO functions.
+ Copyright (C) 2008 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+
+#ifndef _LIBC_VDSO_H
+#define _LIBC_VDSO_H
+
+#ifdef SHARED
+
+extern long int (*__vdso_gettimeofday) (struct timeval *, void *)
+ attribute_hidden;
+
+extern long int (*__vdso_clock_gettime) (clockid_t, struct timespec *);
+
+extern long int (*__vdso_clock_getres) (clockid_t, struct timespec *);
+
+#endif
+
+#endif /* _LIBC_VDSO_H */
diff --git a/sysdeps/unix/sysv/linux/s390/gettimeofday.c b/sysdeps/unix/sysv/linux/s390/gettimeofday.c
new file mode 100644
index 0000000000..1914c3b6ea
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/gettimeofday.c
@@ -0,0 +1,42 @@
+/* Copyright (C) 2008 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <bp-checks.h>
+#include <stddef.h>
+#include <sys/time.h>
+#include <time.h>
+#include <hp-timing.h>
+
+#undef __gettimeofday
+#include <bits/libc-vdso.h>
+
+/* Get the current time of day and timezone information,
+ putting it into *TV and *TZ. If TZ is NULL, *TZ is not filled.
+ Returns 0 on success, -1 on errors. */
+
+int
+__gettimeofday (tv, tz)
+ struct timeval *tv;
+ struct timezone *tz;
+{
+ return INLINE_VSYSCALL (gettimeofday, 2, CHECK_1 (tv), CHECK_1 (tz));
+}
+
+INTDEF (__gettimeofday)
+weak_alias (__gettimeofday, gettimeofday)
diff --git a/sysdeps/unix/sysv/linux/s390/init-first.c b/sysdeps/unix/sysv/linux/s390/init-first.c
new file mode 100644
index 0000000000..7091aac67d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/init-first.c
@@ -0,0 +1,50 @@
+/* Copyright (C) 2008 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifdef SHARED
+# include <dl-vdso.h>
+# undef __gettimeofday
+# undef __clock_gettime
+# undef __clock_getres
+# include <bits/libc-vdso.h>
+
+long int (*__vdso_gettimeofday) (struct timeval *, void *) attribute_hidden;
+
+long int (*__vdso_clock_gettime) (clockid_t, struct timespec *)
+ __attribute__ ((nocommon));
+strong_alias (__vdso_clock_gettime, __GI___vdso_clock_gettime attribute_hidden)
+
+long int (*__vdso_clock_getres) (clockid_t, struct timespec *)
+ __attribute__ ((nocommon));
+strong_alias (__vdso_clock_getres, __GI___vdso_clock_getres attribute_hidden)
+
+
+static inline void
+_libc_vdso_platform_setup (void)
+{
+ PREPARE_VERSION (linux2629, "LINUX_2.6.29", 123718585);
+
+ __vdso_gettimeofday = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2629);
+ __vdso_clock_gettime = _dl_vdso_vsym ("__kernel_clock_gettime", &linux2629);
+ __vdso_clock_getres = _dl_vdso_vsym ("__kernel_clock_getres", &linux2629);
+}
+
+# define VDSO_SETUP _libc_vdso_platform_setup
+#endif
+
+#include "../init-first.c"
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
index b86072bd30..5bfdc44f48 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006
+/* Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2008
Free Software Foundation, Inc.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
This file is part of the GNU C Library.
@@ -26,6 +26,11 @@
#include <dl-sysdep.h> /* For RTLD_PRIVATE_ERRNO. */
#include <tls.h>
+/* Define __set_errno() for INLINE_SYSCALL macro below. */
+#ifndef __ASSEMBLER__
+#include <errno.h>
+#endif
+
/* For Linux we can use the system call table in the header file
/usr/include/asm/unistd.h
of the kernel. But these symbols do not follow the SYS_* syntax
@@ -276,6 +281,100 @@
#define ASMFMT_5 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6)
#define ASMFMT_6 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6), "d" (gpr7)
+#define CLOBBER_0 , "3", "4", "5"
+#define CLOBBER_1 , "3", "4", "5"
+#define CLOBBER_2 , "4", "5"
+#define CLOBBER_3 , "5"
+#define CLOBBER_4
+#define CLOBBER_5
+#define CLOBBER_6
+
+/* List of system calls which are supported as vsyscalls. */
+#define HAVE_CLOCK_GETRES_VSYSCALL 1
+#define HAVE_CLOCK_GETTIME_VSYSCALL 1
+
+/* This version is for kernels that implement system calls that
+ behave like function calls as far as register saving.
+ It falls back to the syscall in the case that the vDSO doesn't
+ exist or fails for ENOSYS */
+#ifdef SHARED
+# define INLINE_VSYSCALL(name, nr, args...) \
+ ({ \
+ __label__ out; \
+ __label__ iserr; \
+ long int _ret; \
+ \
+ if (__vdso_##name != NULL) \
+ { \
+ _ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, , nr, ##args); \
+ if (!INTERNAL_SYSCALL_ERROR_P (_ret, )) \
+ goto out; \
+ if (INTERNAL_SYSCALL_ERRNO (_ret, ) != ENOSYS) \
+ goto iserr; \
+ } \
+ \
+ _ret = INTERNAL_SYSCALL (name, , nr, ##args); \
+ if (INTERNAL_SYSCALL_ERROR_P (_ret, )) \
+ { \
+ iserr: \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (_ret, )); \
+ _ret = -1L; \
+ } \
+ out: \
+ (int) _ret; \
+ })
+#else
+# define INLINE_VSYSCALL(name, nr, args...) \
+ INLINE_SYSCALL (name, nr, ##args)
+#endif
+
+#ifdef SHARED
+# define INTERNAL_VSYSCALL(name, err, nr, args...) \
+ ({ \
+ __label__ out; \
+ long int _ret; \
+ \
+ if (__vdso_##name != NULL) \
+ { \
+ _ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args); \
+ if (!INTERNAL_SYSCALL_ERROR_P (_ret, err) \
+ || INTERNAL_SYSCALL_ERRNO (_ret, err) != ENOSYS) \
+ goto out; \
+ } \
+ _ret = INTERNAL_SYSCALL (name, err, nr, ##args); \
+ out: \
+ _ret; \
+ })
+#else
+# define INTERNAL_VSYSCALL(name, err, nr, args...) \
+ INTERNAL_SYSCALL (name, err, nr, ##args)
+#endif
+
+/* This version is for internal uses when there is no desire
+ to set errno */
+#define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, nr, args...) \
+ ({ \
+ long int _ret = ENOSYS; \
+ \
+ if (__vdso_##name != NULL) \
+ _ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args); \
+ else \
+ err = 1 << 28; \
+ _ret; \
+ })
+
+#define INTERNAL_VSYSCALL_NCS(fn, err, nr, args...) \
+ ({ \
+ DECLARGS_##nr(args) \
+ register long _ret asm("2"); \
+ asm volatile ( \
+ "lr 11,14\n\t" \
+ "basr 14,%1\n\t" \
+ "lr 14,11\n\t" \
+ : "=d" (_ret) \
+ : "d" (fn) ASMFMT_##nr \
+ : "cc", "memory", "0", "1", "11" CLOBBER_##nr); \
+ _ret; })
/* Pointer mangling support. */
#if defined NOT_IN_libc && defined IS_IN_rtld
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h b/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
index 9ddec8e041..6491a3b7b6 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
@@ -1,5 +1,5 @@
/* Assembler macros for 64 bit S/390.
- Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006
+ Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2008
Free Software Foundation, Inc.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
This file is part of the GNU C Library.
@@ -27,6 +27,11 @@
#include <dl-sysdep.h> /* For RTLD_PRIVATE_ERRNO. */
#include <tls.h>
+/* Define __set_errno() for INLINE_SYSCALL macro below. */
+#ifndef __ASSEMBLER__
+#include <errno.h>
+#endif
+
/* For Linux we can use the system call table in the header file
/usr/include/asm/unistd.h
of the kernel. But these symbols do not follow the SYS_* syntax
@@ -278,6 +283,101 @@
#define ASMFMT_5 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6)
#define ASMFMT_6 , "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5), "d" (gpr6), "d" (gpr7)
+#define CLOBBER_0 , "3", "4", "5"
+#define CLOBBER_1 , "3", "4", "5"
+#define CLOBBER_2 , "4", "5"
+#define CLOBBER_3 , "5"
+#define CLOBBER_4
+#define CLOBBER_5
+#define CLOBBER_6
+
+/* List of system calls which are supported as vsyscalls. */
+#define HAVE_CLOCK_GETRES_VSYSCALL 1
+#define HAVE_CLOCK_GETTIME_VSYSCALL 1
+
+/* This version is for kernels that implement system calls that
+ behave like function calls as far as register saving.
+ It falls back to the syscall in the case that the vDSO doesn't
+ exist or fails for ENOSYS */
+#ifdef SHARED
+# define INLINE_VSYSCALL(name, nr, args...) \
+ ({ \
+ __label__ out; \
+ __label__ iserr; \
+ long int _ret; \
+ \
+ if (__vdso_##name != NULL) \
+ { \
+ _ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, , nr, ##args); \
+ if (!INTERNAL_SYSCALL_ERROR_P (_ret, )) \
+ goto out; \
+ if (INTERNAL_SYSCALL_ERRNO (_ret, ) != ENOSYS) \
+ goto iserr; \
+ } \
+ \
+ _ret = INTERNAL_SYSCALL (name, , nr, ##args); \
+ if (INTERNAL_SYSCALL_ERROR_P (_ret, )) \
+ { \
+ iserr: \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (_ret, )); \
+ _ret = -1L; \
+ } \
+ out: \
+ (int) _ret; \
+ })
+#else
+# define INLINE_VSYSCALL(name, nr, args...) \
+ INLINE_SYSCALL (name, nr, ##args)
+#endif
+
+#ifdef SHARED
+# define INTERNAL_VSYSCALL(name, err, nr, args...) \
+ ({ \
+ __label__ out; \
+ long int _ret; \
+ \
+ if (__vdso_##name != NULL) \
+ { \
+ _ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args); \
+ if (!INTERNAL_SYSCALL_ERROR_P (_ret, err) \
+ || INTERNAL_SYSCALL_ERRNO (_ret, err) != ENOSYS) \
+ goto out; \
+ } \
+ _ret = INTERNAL_SYSCALL (name, err, nr, ##args); \
+ out: \
+ _ret; \
+ })
+#else
+# define INTERNAL_VSYSCALL(name, err, nr, args...) \
+ INTERNAL_SYSCALL (name, err, nr, ##args)
+#endif
+
+/* This version is for internal uses when there is no desire
+ to set errno */
+#define INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK(name, err, nr, args...) \
+ ({ \
+ long int _ret = ENOSYS; \
+ \
+ if (__vdso_##name != NULL) \
+ _ret = INTERNAL_VSYSCALL_NCS (__vdso_##name, err, nr, ##args); \
+ else \
+ err = 1 << 28; \
+ _ret; \
+ })
+
+#define INTERNAL_VSYSCALL_NCS(fn, err, nr, args...) \
+ ({ \
+ DECLARGS_##nr(args) \
+ register long _ret asm("2"); \
+ asm volatile ( \
+ "lgr 11,14\n\t" \
+ "basr 14,%1\n\t" \
+ "lgr 14,11\n\t" \
+ : "=d" (_ret) \
+ : "a" (fn) ASMFMT_##nr \
+ : "cc", "memory", "0", "1", "11" CLOBBER_##nr); \
+ _ret; })
+
/* Pointer mangling support. */
#if defined NOT_IN_libc && defined IS_IN_rtld
/* We cannot use the thread descriptor because in ld.so we use setjmp
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/resource.h b/sysdeps/unix/sysv/linux/sparc/bits/resource.h
index 22c087da46..6e4fc97e5b 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/resource.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/resource.h
@@ -1,5 +1,5 @@
/* Bit values & structures for resource limits. Linux/SPARC version.
- Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004, 2005
+ Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004, 2005, 2008, 2009
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -174,10 +174,11 @@ enum __rusage_who
#define RUSAGE_SELF RUSAGE_SELF
/* All of its terminated child processes. */
- RUSAGE_CHILDREN = -1,
+ RUSAGE_CHILDREN = -1
#define RUSAGE_CHILDREN RUSAGE_CHILDREN
#ifdef __USE_GNU
+ ,
/* The calling thread. */
RUSAGE_THREAD = 1
# define RUSAGE_THREAD RUSAGE_THREAD
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-08 13:06:34 +0000