summaryrefslogtreecommitdiff
path: root/sysdeps
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/powerpc/powerpc32/elf/start.S4
-rw-r--r--sysdeps/powerpc/powerpc64/elf/start.S4
-rw-r--r--sysdeps/sparc/sparc32/elf/start.S4
-rw-r--r--sysdeps/sparc/sparc64/elf/start.S4
-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h3
-rw-r--r--sysdeps/unix/sysv/linux/preadv.c13
-rw-r--r--sysdeps/unix/sysv/linux/pwritev.c13
-rw-r--r--sysdeps/x86_64/memchr.S3
-rw-r--r--sysdeps/x86_64/rawmemchr.S54
-rw-r--r--sysdeps/x86_64/strrchr.S81
10 files changed, 168 insertions, 15 deletions
diff --git a/sysdeps/powerpc/powerpc32/elf/start.S b/sysdeps/powerpc/powerpc32/elf/start.S
index bafd2ae001..a8abdca0c6 100644
--- a/sysdeps/powerpc/powerpc32/elf/start.S
+++ b/sysdeps/powerpc/powerpc32/elf/start.S
@@ -1,5 +1,6 @@
/* Startup code for programs linked with GNU libc.
- Copyright (C) 1998,1999,2000,2001,2002,2003 Free Software Foundation, Inc.
+ Copyright (C) 1998,1999,2000,2001,2002,2003,2009
+ 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
@@ -98,4 +99,5 @@ END(_start)
.section ".data"
.globl __data_start
__data_start:
+ .long 0
weak_alias (__data_start, data_start)
diff --git a/sysdeps/powerpc/powerpc64/elf/start.S b/sysdeps/powerpc/powerpc64/elf/start.S
index c9119a2624..e559b87841 100644
--- a/sysdeps/powerpc/powerpc64/elf/start.S
+++ b/sysdeps/powerpc/powerpc64/elf/start.S
@@ -1,5 +1,6 @@
/* Startup code for programs linked with GNU libc. PowerPC64 version.
- Copyright (C) 1998,1999,2000,2001,2002,2003 Free Software Foundation, Inc.
+ Copyright (C) 1998,1999,2000,2001,2002,2003,2009
+ 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
@@ -83,4 +84,5 @@ END(_start)
.section ".data"
.globl __data_start
__data_start:
+ .long 0
weak_alias (__data_start, data_start)
diff --git a/sysdeps/sparc/sparc32/elf/start.S b/sysdeps/sparc/sparc32/elf/start.S
index 85adb7322f..7ff4bd68f6 100644
--- a/sysdeps/sparc/sparc32/elf/start.S
+++ b/sysdeps/sparc/sparc32/elf/start.S
@@ -1,5 +1,6 @@
/* Startup code for elf32-sparc
- Copyright (C) 1997, 1998, 2002, 2004, 2007 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998, 2002, 2004, 2007, 2009
+ Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson <richard@gnu.ai.mit.edu>, 1997.
@@ -96,4 +97,5 @@ _start:
.data
.globl __data_start
__data_start:
+ .long 0
weak_alias (__data_start, data_start)
diff --git a/sysdeps/sparc/sparc64/elf/start.S b/sysdeps/sparc/sparc64/elf/start.S
index 650d3d3048..406ea0f55e 100644
--- a/sysdeps/sparc/sparc64/elf/start.S
+++ b/sysdeps/sparc/sparc64/elf/start.S
@@ -1,5 +1,6 @@
/* Startup code for elf64-sparc
- Copyright (C) 1997, 1998, 2002, 2004, 2007 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998, 2002, 2004, 2007, 2009
+ Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson <richard@gnu.ai.mit.edu>, 1997.
@@ -97,4 +98,5 @@ _start:
.data
.globl __data_start
__data_start:
+ .long 0
weak_alias (__data_start, data_start)
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 5f1ffdb9c5..2fa8524db9 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -532,7 +532,8 @@
/* Support for preadv and pwritev was added in 2.6.30. */
#if __LINUX_KERNEL_VERSION >= 0x02061e \
- && (defined __i386__ || defined __x86_64__ || defined __powerpc__)
+ && (defined __i386__ || defined __x86_64__ || defined __powerpc__ \
+ || defined __ia64__ || defined __sparc__ && defined __sh__)
# define __ASSUME_PREADV 1
# define __ASSUME_PWRITEV 1
#endif
diff --git a/sysdeps/unix/sysv/linux/preadv.c b/sysdeps/unix/sysv/linux/preadv.c
index e2f8238596..0d4a6c3803 100644
--- a/sysdeps/unix/sysv/linux/preadv.c
+++ b/sysdeps/unix/sysv/linux/preadv.c
@@ -29,6 +29,7 @@
#include <sys/syscall.h>
#include <kernel-features.h>
+
#ifndef PREADV
# define PREADV preadv
# define PREADV_REPLACEMENT __atomic_preadv_replacement
@@ -36,8 +37,10 @@
# define OFF_T off_t
#endif
+#ifndef __ASSUME_PREADV
static ssize_t PREADV_REPLACEMENT (int, __const struct iovec *,
int, OFF_T) internal_function;
+#endif
ssize_t
@@ -51,14 +54,16 @@ PREADV (fd, vector, count, offset)
ssize_t result;
if (SINGLE_THREAD_P)
- result = INLINE_SYSCALL (preadv, 5, fd, vector, count, offset >> 32,
- offset & 0xffffffff);
+ result = INLINE_SYSCALL (preadv, 5, fd, vector, count,
+ (off_t) ((off64_t) offset >> 32),
+ (off_t) (offset & 0xffffffff));
else
{
int oldtype = LIBC_CANCEL_ASYNC ();
- result = INLINE_SYSCALL (preadv, 5, fd, vector, count, offset >> 32,
- offset & 0xffffffff);
+ result = INLINE_SYSCALL (preadv, 5, fd, vector, count,
+ (off_t) ((off64_t) offset >> 32),
+ (off_t) (offset & 0xffffffff));
LIBC_CANCEL_RESET (oldtype);
}
diff --git a/sysdeps/unix/sysv/linux/pwritev.c b/sysdeps/unix/sysv/linux/pwritev.c
index df430ffe46..5c30eae51f 100644
--- a/sysdeps/unix/sysv/linux/pwritev.c
+++ b/sysdeps/unix/sysv/linux/pwritev.c
@@ -29,6 +29,7 @@
#include <sys/syscall.h>
#include <kernel-features.h>
+
#ifndef PWRITEV
# define PWRITEV pwritev
# define PWRITEV_REPLACEMENT __atomic_pwritev_replacement
@@ -36,8 +37,10 @@
# define OFF_T off_t
#endif
+#ifndef __ASSUME_PWRITEV
static ssize_t PWRITEV_REPLACEMENT (int, __const struct iovec *,
int, OFF_T) internal_function;
+#endif
ssize_t
@@ -51,14 +54,16 @@ PWRITEV (fd, vector, count, offset)
ssize_t result;
if (SINGLE_THREAD_P)
- result = INLINE_SYSCALL (pwritev, 5, fd, vector, count, offset >> 32,
- offset & 0xffffffff);
+ result = INLINE_SYSCALL (pwritev, 5, fd, vector, count,
+ (off_t) ((off64_t) offset >> 32),
+ (off_t) (offset & 0xffffffff));
else
{
int oldtype = LIBC_CANCEL_ASYNC ();
- result = INLINE_SYSCALL (pwritev, 5, fd, vector, count, offset >> 32,
- offset & 0xffffffff);
+ result = INLINE_SYSCALL (pwritev, 5, fd, vector, count,
+ (off_t) ((off64_t) offset >> 32),
+ (off_t) (offset & 0xffffffff));
LIBC_CANCEL_RESET (oldtype);
}
diff --git a/sysdeps/x86_64/memchr.S b/sysdeps/x86_64/memchr.S
index 644362d565..09ba6d4f8d 100644
--- a/sysdeps/x86_64/memchr.S
+++ b/sysdeps/x86_64/memchr.S
@@ -1,5 +1,4 @@
-/* strlen(str) -- determine the length of the string STR.
- Copyright (C) 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2009 Free Software Foundation, Inc.
Contributed by Ulrich Drepper <drepper@redhat.com>.
This file is part of the GNU C Library.
diff --git a/sysdeps/x86_64/rawmemchr.S b/sysdeps/x86_64/rawmemchr.S
new file mode 100644
index 0000000000..c3bd771635
--- /dev/null
+++ b/sysdeps/x86_64/rawmemchr.S
@@ -0,0 +1,54 @@
+/* Copyright (C) 2009 Free Software Foundation, Inc.
+ Contributed by Ulrich Drepper <drepper@redhat.com>.
+ 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>
+
+
+ .text
+ENTRY (rawmemchr)
+ movd %esi, %xmm1
+ movq %rdi, %rcx
+ punpcklbw %xmm1, %xmm1
+ andq $~15, %rdi
+ punpcklbw %xmm1, %xmm1
+ orl $0xffffffff, %esi
+ movdqa (%rdi), %xmm0
+ pshufd $0, %xmm1, %xmm1
+ subq %rdi, %rcx
+ pcmpeqb %xmm1, %xmm0
+ shl %cl, %esi
+ pmovmskb %xmm0, %ecx
+ leaq 16(%rdi), %rdi
+ andl %esi, %ecx
+ jnz 1f
+
+2: movdqa (%rdi), %xmm0
+ leaq 16(%rdi), %rdi
+ pcmpeqb %xmm1, %xmm0
+ pmovmskb %xmm0, %ecx
+ testl %ecx, %ecx
+ jz 2b
+
+1: bsfl %ecx, %ecx
+ leaq -16(%rcx,%rdi), %rax
+ ret
+END (rawmemchr)
+
+strong_alias (rawmemchr, __rawmemchr)
+libc_hidden_builtin_def (__rawmemchr)
diff --git a/sysdeps/x86_64/strrchr.S b/sysdeps/x86_64/strrchr.S
new file mode 100644
index 0000000000..c75b485ca3
--- /dev/null
+++ b/sysdeps/x86_64/strrchr.S
@@ -0,0 +1,81 @@
+/* strrchr (str, ch) -- Return pointer to last occurrence of CH in STR.
+ For AMD x86-64.
+ Copyright (C) 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
+ 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>
+
+
+ .text
+ENTRY (strrchr)
+ movd %esi, %xmm1
+ movq %rdi, %rcx
+ punpcklbw %xmm1, %xmm1
+ andq $~15, %rdi
+ pxor %xmm2, %xmm2
+ punpcklbw %xmm1, %xmm1
+ orl $0xffffffff, %esi
+ movdqa (%rdi), %xmm0
+ pshufd $0, %xmm1, %xmm1
+ subq %rdi, %rcx
+ movdqa %xmm0, %xmm3
+ leaq 16(%rdi), %rdi
+ pcmpeqb %xmm1, %xmm0
+ pcmpeqb %xmm2, %xmm3
+ shl %cl, %esi
+ pmovmskb %xmm0, %edx
+ pmovmskb %xmm3, %ecx
+ andl %esi, %edx
+ andl %esi, %ecx
+ xorl %eax, %eax
+ movl %edx, %esi
+ orl %ecx, %esi
+ jnz 1f
+
+2: movdqa (%rdi), %xmm0
+ leaq 16(%rdi), %rdi
+ movdqa %xmm0, %xmm3
+ pcmpeqb %xmm1, %xmm0
+ pcmpeqb %xmm2, %xmm3
+ pmovmskb %xmm0, %edx
+ pmovmskb %xmm3, %ecx
+ movl %edx, %esi
+ orl %ecx, %esi
+ jz 2b
+
+1: bsfl %ecx, %r9d
+ movl $0xffffffff, %r8d
+ movl $31, %ecx
+ jnz 5f
+
+ bsrl %edx, %edx
+ jz 2b
+ leaq -16(%rdi,%rdx), %rax
+ jmp 2b
+
+5: subl %r9d, %ecx
+ shrl %cl, %r8d
+ andl %r8d, %edx
+ bsrl %edx, %edx
+ jz 4f
+ leaq -16(%rdi,%rdx), %rax
+4: ret
+END (strrchr)
+
+weak_alias (strrchr, rindex)
+libc_hidden_builtin_def (strrchr)
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-17 23:45:17 +0000