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authorRoland McGrath <roland@gnu.org>2005-04-28 22:31:00 +0000
committerRoland McGrath <roland@gnu.org>2005-04-28 22:31:00 +0000
commit453d8199be7ca2bc9885c9942f02b1e84ac041bf (patch)
tree4a53dc57307697d9fe9bb3a9459f55d82dbd0122 /sysdeps/unix/sysv
parent0e03d56254636d9e804e9f97f93dbafe3f3e2fd7 (diff)
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[BZ #781, BZ #796]
2005-04-28 Roland McGrath <roland@redhat.com> [BZ #796] * sysdeps/unix/sysv/linux/dl-sysdep.h: New file. Define NEED_DL_SYSINFO_DSO for all platforms. * sysdeps/generic/dl-sysdep.h: Remove multiple inclusion protection. * sysdeps/alpha/dl-sysdep.h: Likewise. Use #include_next instead of duplicating generic file's contents. * sysdeps/ia64/dl-sysdep.h: Likewise. * sysdeps/sparc/dl-sysdep.h: Likewise. 2005-03-22 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/powerpc/powerpc64/memset.S (memset): Make ___memset local. 2005-03-07 Steven Munroe <sjmunroe@us.ibm.com> [BZ #781] * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_TGKILL): Define for powerpc32/64 starting with 2.6.1. (__ASSUME_UTIMES): Define for powerpc32/64 starting with 2.6.1. (__ASSUME_FADVISE64_64_SYSCALL): Define for powerpc32 only starting with 2.6.1. (__ASSUME_WAITID_SYSCALL): Don't define for powerpc32/64.
Diffstat (limited to 'sysdeps/unix/sysv')
-rw-r--r--sysdeps/unix/sysv/linux/dl-sysdep.h27
-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h22
2 files changed, 41 insertions, 8 deletions
diff --git a/sysdeps/unix/sysv/linux/dl-sysdep.h b/sysdeps/unix/sysv/linux/dl-sysdep.h
new file mode 100644
index 0000000000..becfc8df3f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/dl-sysdep.h
@@ -0,0 +1,27 @@
+/* System-specific settings for dynamic linker code. Linux version.
+ Copyright (C) 2005 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_next <dl-sysdep.h>
+
+/* On many architectures the kernel provides a virtual DSO and gives
+ AT_SYSINFO_EHDR to point us to it. As this is introduced for new
+ machines, we should look at it for unwind information even if
+ we aren't making direct use of it. So enable this across the board. */
+
+#define NEED_DL_SYSINFO_DSO 1
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 83ebe0cf74..26cddd5a73 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -354,22 +354,24 @@
/* The tgkill syscall was instroduced for i386 in 2.5.75. For Alpha
it was introduced in 2.6.0-test1 which unfortunately cannot be
- distinguished from 2.6.0. On x86-64 it was introduced in
- 2.6.0-test3. */
+ distinguished from 2.6.0. On x86-64, ppc, and ppc64 it was
+ introduced in 2.6.0-test3. */
#if (__LINUX_KERNEL_VERSION >= 132427 && defined __i386__) \
|| (__LINUX_KERNEL_VERSION >= 132609 && defined __alpha__) \
|| (__LINUX_KERNEL_VERSION >= 132609 && defined __x86_64__) \
+ || (__LINUX_KERNEL_VERSION >= 132609 && defined __powerpc__) \
|| (__LINUX_KERNEL_VERSION >= 132609 && defined __sh__)
# define __ASSUME_TGKILL 1
#endif
/* The utimes syscall has been available for some architectures
- forever. For x86 it was introduced after 2.5.75, for x86-64 in
- 2.6.0-test3. */
+ forever. For x86 it was introduced after 2.5.75, for x86-64,
+ ppc, and ppc64 it was introduced in 2.6.0-test3. */
#if defined __alpha__ || defined __ia64__ || defined __hppa__ \
|| defined __sparc__ \
|| (__LINUX_KERNEL_VERSION > 132427 && defined __i386__) \
|| (__LINUX_KERNEL_VERSION > 132609 && defined __x86_64__) \
+ || (__LINUX_KERNEL_VERSION >= 132609 && defined __powerpc__) \
|| (__LINUX_KERNEL_VERSION >= 132609 && defined __sh__)
# define __ASSUME_UTIMES 1
#endif
@@ -383,8 +385,11 @@
#endif
/* The fixed version of the posix_fadvise64 syscall appeared in
- 2.6.0-test3. At least for x86. */
-#if __LINUX_KERNEL_VERSION >= 132609 && defined __i386__
+ 2.6.0-test3. At least for x86. Powerpc support appeared in
+ 2.6.2, but for 32-bit userspace only. */
+#if (__LINUX_KERNEL_VERSION >= 132609 && defined __i386__) \
+ || (__LINUX_KERNEL_VERSION >= 132610 && defined __powerpc__ \
+ && !defined __powerpc64__)
# define __ASSUME_FADVISE64_64_SYSCALL 1
#endif
@@ -419,8 +424,9 @@
# define __ASSUME_BRK_PAGE_ROUNDED 1
#endif
-/* Starting with version 2.6.9, the waitid system call is available. */
-#if __LINUX_KERNEL_VERSION >= 0x020609
+/* Starting with version 2.6.9, the waitid system call is available.
+ Except for powerpc and powerpc64. */
+#if __LINUX_KERNEL_VERSION >= 0x020609 && !defined __powerpc__
# define __ASSUME_WAITID_SYSCALL 1
#endif