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-rw-r--r--sysdeps/unix/sysv/linux/dl-sysdep.h27
-rw-r--r--sysdeps/unix/sysv/linux/i386/socket.S4
-rw-r--r--sysdeps/unix/sysv/linux/i386/sysdep.h30
-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h22
4 files changed, 64 insertions, 19 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/i386/socket.S b/sysdeps/unix/sysv/linux/i386/socket.S
index e403899cc6..7c8ac29b86 100644
--- a/sysdeps/unix/sysv/linux/i386/socket.S
+++ b/sysdeps/unix/sysv/linux/i386/socket.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995,1996,1997,1998,2002,2003 Free Software Foundation, Inc.
+/* Copyright (C) 1995-1998,2002,2003,2005 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
@@ -41,7 +41,6 @@
#endif
.globl __socket
- cfi_startproc
ENTRY (__socket)
#if defined NEED_CANCELLATION && defined CENABLE
SINGLE_THREAD_P
@@ -118,7 +117,6 @@ L(pseudo_end):
/* Successful; return the syscall's value. */
ret
#endif
- cfi_endproc
PSEUDO_END (__socket)
#ifndef NO_WEAK_ALIAS
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h
index 6bea9d2044..d64d0a3a5c 100644
--- a/sysdeps/unix/sysv/linux/i386/sysdep.h
+++ b/sysdeps/unix/sysv/linux/i386/sysdep.h
@@ -168,16 +168,22 @@ __i686.get_pc_thunk.reg: \
# else
# define SYSCALL_ERROR_HANDLER \
0:pushl %ebx; \
+ cfi_adjust_cfa_offset (4); \
+ cfi_rel_offset (ebx, 0); \
SETUP_PIC_REG (bx); \
addl $_GLOBAL_OFFSET_TABLE_, %ebx; \
xorl %edx, %edx; \
subl %eax, %edx; \
pushl %edx; \
+ cfi_adjust_cfa_offset (4); \
PUSH_ERRNO_LOCATION_RETURN; \
call BP_SYM (__errno_location)@PLT; \
POP_ERRNO_LOCATION_RETURN; \
popl %ecx; \
+ cfi_adjust_cfa_offset (-4); \
popl %ebx; \
+ cfi_adjust_cfa_offset (-4); \
+ cfi_restore (ebx); \
movl %ecx, (%eax); \
orl $-1, %eax; \
jmp L(pseudo_end);
@@ -273,9 +279,11 @@ __i686.get_pc_thunk.reg: \
#define PUSHARGS_1 movl %ebx, %edx; L(SAVEBX1): PUSHARGS_0
#define DOARGS_1 _DOARGS_1 (4)
#define POPARGS_1 POPARGS_0; movl %edx, %ebx; L(RESTBX1):
-#define _PUSHARGS_1 pushl %ebx; L(PUSHBX1): _PUSHARGS_0
+#define _PUSHARGS_1 pushl %ebx; cfi_adjust_cfa_offset (4); \
+ cfi_rel_offset (ebx, 0); L(PUSHBX1): _PUSHARGS_0
#define _DOARGS_1(n) movl n(%esp), %ebx; _DOARGS_0(n-4)
-#define _POPARGS_1 _POPARGS_0; popl %ebx; L(POPBX1):
+#define _POPARGS_1 _POPARGS_0; popl %ebx; cfi_adjust_cfa_offset (-4); \
+ cfi_restore (ebx); L(POPBX1):
#define PUSHARGS_2 PUSHARGS_1
#define DOARGS_2 _DOARGS_2 (8)
@@ -294,23 +302,29 @@ __i686.get_pc_thunk.reg: \
#define PUSHARGS_4 _PUSHARGS_4
#define DOARGS_4 _DOARGS_4 (24)
#define POPARGS_4 _POPARGS_4
-#define _PUSHARGS_4 pushl %esi; L(PUSHSI1): _PUSHARGS_3
+#define _PUSHARGS_4 pushl %esi; cfi_adjust_cfa_offset (4); \
+ cfi_rel_offset (esi, 0); L(PUSHSI1): _PUSHARGS_3
#define _DOARGS_4(n) movl n(%esp), %esi; _DOARGS_3 (n-4)
-#define _POPARGS_4 _POPARGS_3; popl %esi; L(POPSI1):
+#define _POPARGS_4 _POPARGS_3; popl %esi; cfi_adjust_cfa_offset (-4); \
+ cfi_restore (esi); L(POPSI1):
#define PUSHARGS_5 _PUSHARGS_5
#define DOARGS_5 _DOARGS_5 (32)
#define POPARGS_5 _POPARGS_5
-#define _PUSHARGS_5 pushl %edi; L(PUSHDI1): _PUSHARGS_4
+#define _PUSHARGS_5 pushl %edi; cfi_adjust_cfa_offset (4); \
+ cfi_rel_offset (edi, 0); L(PUSHDI1): _PUSHARGS_4
#define _DOARGS_5(n) movl n(%esp), %edi; _DOARGS_4 (n-4)
-#define _POPARGS_5 _POPARGS_4; popl %edi; L(POPDI1):
+#define _POPARGS_5 _POPARGS_4; popl %edi; cfi_adjust_cfa_offset (-4); \
+ cfi_restore (edi); L(POPDI1):
#define PUSHARGS_6 _PUSHARGS_6
#define DOARGS_6 _DOARGS_6 (36)
#define POPARGS_6 _POPARGS_6
-#define _PUSHARGS_6 pushl %ebp; L(PUSHBP1): _PUSHARGS_5
+#define _PUSHARGS_6 pushl %ebp; cfi_adjust_cfa_offset (4); \
+ cfi_rel_offset (ebp, 0); L(PUSHBP1): _PUSHARGS_5
#define _DOARGS_6(n) movl n(%esp), %ebp; _DOARGS_5 (n-4)
-#define _POPARGS_6 _POPARGS_5; popl %ebp; L(POPBP1):
+#define _POPARGS_6 _POPARGS_5; popl %ebp; cfi_adjust_cfa_offset (-4); \
+ cfi_restore (ebp); L(POPBP1):
#else /* !__ASSEMBLER__ */
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
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-19 21:55:42 +0000