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Move arm port to ports repository 

2005-05-23  Roland McGrath  <roland@redhat.com>

	* sysdeps/arm, sysdeps/unix/arm, sysdeps/unix/sysv/linux/arm:
	Subdirectories moved to ports repository.
	* configure.in (base_machine): Remove arm* and thumb* patterns.
	* shlib-versions (arm.*-.*-linux.*): Remove this pattern.
This commit is contained in:
Roland McGrath 2005-05-24 06:18:37 +00:00
parent 88b8441a81
commit ce9b3bc17a
127 changed files with 12 additions and 6771 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
ChangeLog
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@ -1,3 +1,10 @@
2005-05-23 Roland McGrath <roland@redhat.com>
* sysdeps/arm, sysdeps/unix/arm, sysdeps/unix/sysv/linux/arm:
Subdirectories moved to ports repository.
* configure.in (base_machine): Remove arm* and thumb* patterns.
* shlib-versions (arm.*-.*-linux.*): Remove this pattern.
2005-05-23 Ulrich Drepper <drepper@redhat.com>
* sunrpc/bindrsvprt.c (LOWPORT): Apparently some mountd

5
linuxthreads/ChangeLog
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@ -1,3 +1,8 @@
2005-05-23 Roland McGrath <roland@redhat.com>
* sysdeps/arm, sysdeps/unix/sysv/linux/arm: Subdirectories moved to
ports repository.
2005-05-23 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h

82
linuxthreads/sysdeps/arm/pspinlock.c
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@ -1,82 +0,0 @@
/* POSIX spinlock implementation. Arm version.
Copyright (C) 2000 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; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <pthread.h>
#include "internals.h"
int
__pthread_spin_lock (pthread_spinlock_t *lock)
{
unsigned int val;
do
asm volatile ("swp %0, %1, [%2]"
: "=r" (val)
: "0" (1), "r" (lock)
: "memory");
while (val != 0);
return 0;
}
weak_alias (__pthread_spin_lock, pthread_spin_lock)
int
__pthread_spin_trylock (pthread_spinlock_t *lock)
{
unsigned int val;
asm volatile ("swp %0, %1, [%2]"
: "=r" (val)
: "0" (1), "r" (lock)
: "memory");
return val ? EBUSY : 0;
}
weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
int
__pthread_spin_unlock (pthread_spinlock_t *lock)
{
return *lock = 0;
}
weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
int
__pthread_spin_init (pthread_spinlock_t *lock, int pshared)
{
/* We can ignore the `pshared' parameter. Since we are busy-waiting
all processes which can access the memory location `lock' points
to can use the spinlock. */
return *lock = 0;
}
weak_alias (__pthread_spin_init, pthread_spin_init)
int
__pthread_spin_destroy (pthread_spinlock_t *lock)
{
/* Nothing to do. */
return 0;
}
weak_alias (__pthread_spin_destroy, pthread_spin_destroy)

55
linuxthreads/sysdeps/arm/pt-machine.h
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@ -1,55 +0,0 @@
/* Machine-dependent pthreads configuration and inline functions.
ARM version.
Copyright (C) 1997, 1998, 2000, 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Philip Blundell <philb@gnu.org>.
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; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _PT_MACHINE_H
#define _PT_MACHINE_H 1
#ifndef PT_EI
# define PT_EI extern inline __attribute__ ((always_inline))
#endif
extern long int testandset (int *spinlock);
extern int __compare_and_swap (long int *p, long int oldval, long int newval);
/* This will not work on ARM1 or ARM2 because SWP is lacking on those
machines. Unfortunately we have no way to detect this at compile
time; let's hope nobody tries to use one. */
/* Spinlock implementation; required. */
PT_EI long int
testandset (int *spinlock)
{
register unsigned int ret;
__asm__ __volatile__("swp %0, %1, [%2]"
: "=r"(ret)
: "0"(1), "r"(spinlock));
return ret;
}
/* Get some notion of the current stack. Need not be exactly the top
of the stack, just something somewhere in the current frame. */
#define CURRENT_STACK_FRAME stack_pointer
register char * stack_pointer __asm__ ("sp");
#endif /* pt-machine.h */

145
linuxthreads/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h
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@ -1,145 +0,0 @@
/* Copyright (C) 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Phil Blundell <pb@nexus.co.uk>, 2003.
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>
#ifndef __ASSEMBLER__
# include <linuxthreads/internals.h>
#endif
#if !defined NOT_IN_libc || defined IS_IN_libpthread
/* We push lr onto the stack, so we have to use ldmib instead of ldmia
to find the saved arguments. */
# ifdef PIC
# undef DOARGS_5
# undef DOARGS_6
# undef DOARGS_7
# define DOARGS_5 str r4, [sp, $-4]!; ldr r4, [sp, $8];
# define DOARGS_6 mov ip, sp; stmfd sp!, {r4, r5}; ldmib ip, {r4, r5};
# define DOARGS_7 mov ip, sp; stmfd sp!, {r4, r5, r6}; ldmib ip, {r4, r5, r6};
# endif
# undef PSEUDO_RET
# define PSEUDO_RET \
ldrcc pc, [sp], $4; \
ldr lr, [sp], $4; \
b PLTJMP(SYSCALL_ERROR)
# undef PSEUDO
# define PSEUDO(name, syscall_name, args) \
.section ".text"; \
PSEUDO_PROLOGUE; \
ENTRY (name); \
SINGLE_THREAD_P_INT; \
bne .Lpseudo_cancel; \
DO_CALL (syscall_name, args); \
cmn r0, $4096; \
PSEUDO_RET_MOV; \
.Lpseudo_cancel: \
MAYBE_SAVE_LR; \
DOCARGS_##args; /* save syscall args around CENABLE. */ \
CENABLE; \
mov ip, r0; /* put mask in safe place. */ \
UNDOCARGS_##args; /* restore syscall args. */ \
swi SYS_ify (syscall_name); /* do the call. */ \
str r0, [sp, $-4]!; /* save syscall return value. */ \
mov r0, ip; /* get mask back. */ \
CDISABLE; \
ldr r0, [sp], $4; /* retrieve return value. */ \
UNDOC2ARGS_##args; /* fix register damage. */ \
cmn r0, $4096;
# define DOCARGS_0
# define UNDOCARGS_0
# define UNDOC2ARGS_0
# define DOCARGS_1 str r0, [sp, #-4]!;
# define UNDOCARGS_1 ldr r0, [sp], #4;
# define UNDOC2ARGS_1
# define DOCARGS_2 str r1, [sp, #-4]!; str r0, [sp, #-4]!;
# define UNDOCARGS_2 ldr r0, [sp], #4; ldr r1, [sp], #4;
# define UNDOC2ARGS_2
# define DOCARGS_3 str r2, [sp, #-4]!; str r1, [sp, #-4]!; str r0, [sp, #-4]!;
# define UNDOCARGS_3 ldr r0, [sp], #4; ldr r1, [sp], #4; ldr r2, [sp], #4
# define UNDOC2ARGS_3
# define DOCARGS_4 stmfd sp!, {r0-r3}
# define UNDOCARGS_4 ldmfd sp!, {r0-r3}
# define UNDOC2ARGS_4
# define DOCARGS_5 stmfd sp!, {r0-r3}
# define UNDOCARGS_5 ldmfd sp, {r0-r3}; str r4, [sp, #-4]!; ldr r4, [sp, #24]
# define UNDOC2ARGS_5 ldr r4, [sp], #20
# ifdef IS_IN_libpthread
# define CENABLE bl PLTJMP(__pthread_enable_asynccancel)
# define CDISABLE bl PLTJMP(__pthread_disable_asynccancel)
# define __local_multiple_threads __pthread_multiple_threads
# else
# define CENABLE bl PLTJMP(__libc_enable_asynccancel)
# define CDISABLE bl PLTJMP(__libc_disable_asynccancel)
# define __local_multiple_threads __libc_multiple_threads
# endif
# ifndef __ASSEMBLER__
extern int __local_multiple_threads attribute_hidden;
# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
# else
# if !defined PIC
# define SINGLE_THREAD_P_INT \
ldr ip, =__local_multiple_threads; \
ldr ip, [ip]; \
teq ip, #0;
# define SINGLE_THREAD_P SINGLE_THREAD_P_INT
# define MAYBE_SAVE_LR \
str lr, [sp, $-4]!;
# define PSEUDO_RET_MOV \
RETINSTR(cc, lr); \
b PLTJMP(SYSCALL_ERROR)
# define PSEUDO_PROLOGUE
# else
# define SINGLE_THREAD_P_PIC(reg) \
ldr ip, 1b; \
ldr reg, 2b; \
3: \
add ip, pc, ip; \
ldr ip, [ip, reg]; \
teq ip, #0;
# define SINGLE_THREAD_P_INT \
str lr, [sp, $-4]!; \
SINGLE_THREAD_P_PIC(lr)
# define SINGLE_THREAD_P \
SINGLE_THREAD_P_INT; \
ldr lr, [sp], $4
# define PSEUDO_PROLOGUE \
1: .word _GLOBAL_OFFSET_TABLE_ - 3f - 8; \
2: .word __local_multiple_threads(GOTOFF);
# define MAYBE_SAVE_LR /* lr already saved */
# define PSEUDO_RET_MOV PSEUDO_RET
# endif
# endif
#elif !defined __ASSEMBLER__
/* This code should never be used but we define it anyhow. */
# define SINGLE_THREAD_P (1)
#endif

80
linuxthreads/sysdeps/unix/sysv/linux/arm/vfork.S
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@ -1,80 +0,0 @@
/* Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Philip Blundell <philb@gnu.org>.
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-cancel.h>
#define _ERRNO_H 1
#include <bits/errno.h>
#include <kernel-features.h>
/* Clone the calling process, but without copying the whole address space.
The calling process is suspended until the new process exits or is
replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
and the process ID of the new process to the old process. */
PSEUDO_PROLOGUE
ENTRY (__vfork)
#ifdef __NR_vfork
#ifdef SHARED
ldr ip, 1f
ldr r0, 2f
3: add ip, pc, ip
ldr r0, [ip, r0]
#else
ldr r0, 1f
#endif
movs r0, r0
bne HIDDEN_JUMPTARGET (__fork)
swi __NR_vfork
cmn a1, #4096
RETINSTR(cc, lr)
#ifndef __ASSUME_VFORK_SYSCALL
/* Check if vfork syscall is known at all. */
cmn a1, #ENOSYS
bne PLTJMP(C_SYMBOL_NAME(__syscall_error))
#endif
#endif
#ifndef __ASSUME_VFORK_SYSCALL
/* If we don't have vfork, fork is close enough. */
swi __NR_fork
cmn a1, #4096
RETINSTR(cc, lr)
#elif !defined __NR_vfork
# error "__NR_vfork not available and __ASSUME_VFORK_SYSCALL defined"
#endif
b PLTJMP(C_SYMBOL_NAME(__syscall_error))
#ifdef SHARED
1: .word _GLOBAL_OFFSET_TABLE_ - 3b - 8
2: .word __libc_pthread_functions(GOTOFF)
#else
.weak pthread_create
1: .word pthread_create
#endif
PSEUDO_END (__vfork)
libc_hidden_def (__vfork)
weak_alias (__vfork, vfork)

2
sysdeps/arm/Dist
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@ -1,2 +0,0 @@
ieee754.h
bits/link.h

3
sysdeps/arm/Implies
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@ -1,3 +0,0 @@
wordsize-32
ieee754/flt-32
ieee754/dbl-64

33
sysdeps/arm/__longjmp.S
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@ -1,33 +0,0 @@
/* longjmp for ARM.
Copyright (C) 1997, 1998 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>
#define _SETJMP_H
#define _ASM
#include <bits/setjmp.h>
/* __longjmp(jmpbuf, val) */
ENTRY (__longjmp)
mov ip, r0
movs r0, r1 /* get the return value in place */
moveq r0, #1 /* can't let setjmp() return zero! */
LOADREGS(ia, ip, {v1-v6, sl, fp, sp, pc})
END (__longjmp)

87
sysdeps/arm/atomicity.h
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@ -1,87 +0,0 @@
/* Low-level functions for atomic operations. ARM version.
Copyright (C) 1997, 1998, 1999, 2000 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 _ATOMICITY_H
#define _ATOMICITY_H 1
#include <inttypes.h>
static inline int
__attribute__ ((unused))
exchange_and_add (volatile uint32_t *mem, int val)
{
int tmp1;
int tmp2;
int result;
__asm__ ("\n"
"0:\tldr\t%0,[%3]\n\t"
"add\t%1,%0,%4\n\t"
"swp\t%2,%1,[%3]\n\t"
"cmp\t%0,%2\n\t"
"swpne\t%1,%2,[%3]\n\t"
"bne\t0b"
: "=&r" (result), "=&r" (tmp1), "=&r" (tmp2)
: "r" (mem), "r"(val)
: "cc", "memory");
return result;
}
static inline void
__attribute__ ((unused))
atomic_add (volatile uint32_t *mem, int val)
{
int tmp1;
int tmp2;
int tmp3;
__asm__ ("\n"
"0:\tldr\t%0,[%3]\n\t"
"add\t%1,%0,%4\n\t"
"swp\t%2,%1,[%3]\n\t"
"cmp\t%0,%2\n\t"
"swpne\t%1,%2,[%3]\n\t"
"bne\t0b"
: "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3)
: "r" (mem), "r"(val)
: "cc", "memory");
}
static inline int
__attribute__ ((unused))
compare_and_swap (volatile long int *p, long int oldval, long int newval)
{
int result, tmp;
__asm__ ("\n"
"0:\tldr\t%1,[%2]\n\t"
"mov\t%0,#0\n\t"
"cmp\t%1,%4\n\t"
"bne\t1f\n\t"
"swp\t%0,%3,[%2]\n\t"
"cmp\t%1,%0\n\t"
"swpne\t%1,%0,[%2]\n\t"
"bne\t0b\n\t"
"mov\t%0,#1\n"
"1:"
: "=&r" (result), "=&r" (tmp)
: "r" (p), "r" (newval), "r" (oldval)
: "cc", "memory");
return result;
}
#endif /* atomicity.h */

12
sysdeps/arm/bits/endian.h
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@ -1,12 +0,0 @@
/* ARM is (usually) little-endian but with a big-endian FPU. */
#ifndef _ENDIAN_H
# error "Never use <bits/endian.h> directly; include <endian.h> instead."
#endif
#ifdef __ARMEB__
#define __BYTE_ORDER __BIG_ENDIAN
#else
#define __BYTE_ORDER __LITTLE_ENDIAN
#endif
#define __FLOAT_WORD_ORDER __BIG_ENDIAN

56
sysdeps/arm/bits/huge_val.h
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@ -1,56 +0,0 @@
/* `HUGE_VAL' constant for IEEE 754 machines (where it is infinity).
Used by <stdlib.h> and <math.h> functions for overflow.
ARM version.
Copyright (C) 1992, 95, 96, 97, 98, 99, 2000, 2004
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 _MATH_H
# error "Never use <bits/huge_val.h> directly; include <math.h> instead."
#endif
/* IEEE positive infinity (-HUGE_VAL is negative infinity). */
#if __GNUC_PREREQ(3,3)
# define HUGE_VAL (__builtin_huge_val())
#elif __GNUC_PREREQ(2,96)
# define HUGE_VAL (__extension__ 0x1.0p2047)
#elif defined __GNUC__
# define HUGE_VAL \
(__extension__ \
((union { unsigned __l __attribute__((__mode__(__DI__))); double __d; }) \
{ __l: 0x000000007ff00000ULL }).__d)
#else /* not GCC */
# include <endian.h>
typedef union { unsigned char __c[8]; double __d; } __huge_val_t;
# if __BYTE_ORDER == __BIG_ENDIAN
# define __HUGE_VAL_bytes { 0, 0, 0, 0, 0x7f, 0xf0, 0, 0 }
# endif
# if __BYTE_ORDER == __LITTLE_ENDIAN
# define __HUGE_VAL_bytes { 0, 0, 0xf0, 0x7f, 0, 0, 0, 0 }
# endif
static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
# define HUGE_VAL (__huge_val.__d)
#endif /* GCC. */

0
sysdeps/arm/bits/link.h
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4
sysdeps/arm/bits/linkmap.h
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@ -1,4 +0,0 @@
struct link_map_machine
{
Elf32_Addr plt; /* Address of .plt */
};

36
sysdeps/arm/bits/setjmp.h
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@ -1,36 +0,0 @@
/* Copyright (C) 1997, 1998 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. */
/* Define the machine-dependent type `jmp_buf'. ARM version. */
#ifndef _SETJMP_H
# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
#endif
#ifndef _ASM
/* Jump buffer contains v1-v6, sl, fp, sp and pc. Other registers are not
saved. */
typedef int __jmp_buf[10];
#endif
#define __JMP_BUF_SP 8
/* Test if longjmp to JMPBUF would unwind the frame
containing a local variable at ADDRESS. */
#define _JMPBUF_UNWINDS(jmpbuf, address) \
((void *) (address) < (void *) (jmpbuf[__JMP_BUF_SP]))

31
sysdeps/arm/bits/string.h
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@ -1,31 +0,0 @@
/* Optimized, inlined string functions. ARM version.
Copyright (C) 1998, 1999, 2000 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 _STRING_H
# error "Never use <bits/string.h> directly; include <string.h> instead."
#endif
/* We must defeat the generic optimized versions of these functions in
<bits/string2.h> since they don't work on the ARM. This is because
the games they play with the __STRING2_COPY_ARR# structures fail
when structs are always 32-bit aligned.
XXX Should provide suitably optimal replacements. */
#define _HAVE_STRING_ARCH_strcpy 1
#define _HAVE_STRING_ARCH_stpcpy 1
#define _HAVE_STRING_ARCH_mempcpy 1

30
sysdeps/arm/bsd-_setjmp.S
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@ -1,30 +0,0 @@
/* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'. ARM version.
Copyright (C) 1997, 1998, 2002 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. */
/* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
We cannot do it in C because it must be a tail-call, so frame-unwinding
in setjmp doesn't clobber the state restored by longjmp. */
#include <sysdep.h>
ENTRY (_setjmp)
mov r1, #0
b PLTJMP(C_SYMBOL_NAME(__sigsetjmp))
END (_setjmp)
libc_hidden_def (_setjmp)

29
sysdeps/arm/bsd-setjmp.S
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@ -1,29 +0,0 @@
/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. ARM version.
Copyright (C) 1997, 1998 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. */
/* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
We cannot do it in C because it must be a tail-call, so frame-unwinding
in setjmp doesn't clobber the state restored by longjmp. */
#include <sysdep.h>
ENTRY (setjmp)
mov r1, #1
b PLTJMP(C_SYMBOL_NAME(__sigsetjmp))
END (setjmp)

640
sysdeps/arm/dl-machine.h
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@ -1,640 +0,0 @@
/* Machine-dependent ELF dynamic relocation inline functions. ARM version.
Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005
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. */
#ifndef dl_machine_h
#define dl_machine_h
#define ELF_MACHINE_NAME "ARM"
#include <sys/param.h>
#define VALID_ELF_ABIVERSION(ver) (ver == 0)
#define VALID_ELF_OSABI(osabi) \
(osabi == ELFOSABI_SYSV || osabi == ELFOSABI_ARM)
#define VALID_ELF_HEADER(hdr,exp,size) \
memcmp (hdr,exp,size-2) == 0 \
&& VALID_ELF_OSABI (hdr[EI_OSABI]) \
&& VALID_ELF_ABIVERSION (hdr[EI_ABIVERSION])
#define CLEAR_CACHE(BEG,END) \
{ \
register unsigned long _beg __asm ("a1") = (unsigned long)(BEG); \
register unsigned long _end __asm ("a2") = (unsigned long)(END); \
register unsigned long _flg __asm ("a3") = 0; \
__asm __volatile ("swi 0x9f0002 @ sys_cacheflush" \
: /* no outputs */ \
: /* no inputs */ \
: "a1"); \
}
/* Return nonzero iff ELF header is compatible with the running host. */
static inline int __attribute__ ((unused))
elf_machine_matches_host (const Elf32_Ehdr *ehdr)
{
return ehdr->e_machine == EM_ARM;
}
/* Return the link-time address of _DYNAMIC. Conveniently, this is the
first element of the GOT. This must be inlined in a function which
uses global data. */
static inline Elf32_Addr __attribute__ ((unused))
elf_machine_dynamic (void)
{
register Elf32_Addr *got asm ("r10");
return *got;
}
/* Return the run-time load address of the shared object. */
static inline Elf32_Addr __attribute__ ((unused))
elf_machine_load_address (void)
{
extern void __dl_start asm ("_dl_start");
Elf32_Addr got_addr = (Elf32_Addr) &__dl_start;
Elf32_Addr pcrel_addr;
asm ("adr %0, _dl_start" : "=r" (pcrel_addr));
return pcrel_addr - got_addr;
}
/* Set up the loaded object described by L so its unrelocated PLT
entries will jump to the on-demand fixup code in dl-runtime.c. */
static inline int __attribute__ ((unused))
elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
{
Elf32_Addr *got;
extern void _dl_runtime_resolve (Elf32_Word);
extern void _dl_runtime_profile (Elf32_Word);
if (l->l_info[DT_JMPREL] && lazy)
{
/* patb: this is different than i386 */
/* The GOT entries for functions in the PLT have not yet been filled
in. Their initial contents will arrange when called to push an
index into the .got section, load ip with &_GLOBAL_OFFSET_TABLE_[3],
and then jump to _GLOBAL_OFFSET_TABLE[2]. */
got = (Elf32_Addr *) D_PTR (l, l_info[DT_PLTGOT]);
/* If a library is prelinked but we have to relocate anyway,
we have to be able to undo the prelinking of .got.plt.
The prelinker saved us here address of .plt. */
if (got[1])
l->l_mach.plt = got[1] + l->l_addr;
got[1] = (Elf32_Addr) l; /* Identify this shared object. */
/* The got[2] entry contains the address of a function which gets
called to get the address of a so far unresolved function and
jump to it. The profiling extension of the dynamic linker allows
to intercept the calls to collect information. In this case we
don't store the address in the GOT so that all future calls also
end in this function. */
if (profile)
{
got[2] = (Elf32_Addr) &_dl_runtime_profile;
if (_dl_name_match_p (GLRO(dl_profile), l))
/* Say that we really want profiling and the timers are
started. */
GL(dl_profile_map) = l;
}
else
/* This function will get called to fix up the GOT entry indicated by
the offset on the stack, and then jump to the resolved address. */
got[2] = (Elf32_Addr) &_dl_runtime_resolve;
}
return lazy;
}
#if defined(__USE_BX__)
#define BX(x) "bx\t" #x
#else
#define BX(x) "mov\tpc, " #x
#endif
#ifndef PROF
# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
.text\n\
.globl _dl_runtime_resolve\n\
.type _dl_runtime_resolve, #function\n\
.align 2\n\
_dl_runtime_resolve:\n\
@ we get called with\n\
@ stack[0] contains the return address from this call\n\
@ ip contains &GOT[n+3] (pointer to function)\n\
@ lr points to &GOT[2]\n\
\n\
@ stack arguments\n\
stmdb sp!,{r0-r3}\n\
\n\
@ get pointer to linker struct\n\
ldr r0, [lr, #-4]\n\
\n\
@ prepare to call fixup()\n\
@ change &GOT[n+3] into 8*n NOTE: reloc are 8 bytes each\n\
sub r1, ip, lr\n\
sub r1, r1, #4\n\
add r1, r1, r1\n\
\n\
@ call fixup routine\n\
bl fixup\n\
\n\
@ save the return\n\
mov ip, r0\n\
\n\
@ get arguments and return address back\n\
ldmia sp!, {r0-r3,lr}\n\
\n\
@ jump to the newly found address\n\
" BX(ip) "\n\
\n\
.size _dl_runtime_resolve, .-_dl_runtime_resolve\n\
\n\
.globl _dl_runtime_profile\n\
.type _dl_runtime_profile, #function\n\
.align 2\n\
_dl_runtime_profile:\n\
@ stack arguments\n\
stmdb sp!, {r0-r3}\n\
\n\
@ get pointer to linker struct\n\
ldr r0, [lr, #-4]\n\
\n\
@ prepare to call fixup()\n\
@ change &GOT[n+3] into 8*n NOTE: reloc are 8 bytes each\n\
sub r1, ip, lr\n\
sub r1, r1, #4\n\
add r1, r1, r1\n\
\n\
@ call profiling fixup routine\n\
bl profile_fixup\n\
\n\
@ save the return\n\
mov ip, r0\n\
\n\
@ get arguments and return address back\n\
ldmia sp!, {r0-r3,lr}\n\
\n\
@ jump to the newly found address\n\
" BX(ip) "\n\
\n\
.size _dl_runtime_resolve, .-_dl_runtime_resolve\n\
.previous\n\
");
#else // PROF
# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
.text\n\
.globl _dl_runtime_resolve\n\
.globl _dl_runtime_profile\n\
.type _dl_runtime_resolve, #function\n\
.type _dl_runtime_profile, #function\n\
.align 2\n\
_dl_runtime_resolve:\n\
_dl_runtime_profile:\n\
@ we get called with\n\
@ stack[0] contains the return address from this call\n\
@ ip contains &GOT[n+3] (pointer to function)\n\
@ lr points to &GOT[2]\n\
\n\
@ stack arguments\n\
stmdb sp!, {r0-r3}\n\
\n\
@ get pointer to linker struct\n\
ldr r0, [lr, #-4]\n\
\n\
@ prepare to call fixup()\n\
@ change &GOT[n+3] into 8*n NOTE: reloc are 8 bytes each\n\
sub r1, ip, lr\n\
sub r1, r1, #4\n\
add r1, r1, r1\n\
\n\
@ call profiling fixup routine\n\
bl fixup\n\
\n\
@ save the return\n\
mov ip, r0\n\
\n\
@ get arguments and return address back\n\
ldmia sp!, {r0-r3,lr}\n\
\n\
@ jump to the newly found address\n\
" BX(ip) "\n\
\n\
.size _dl_runtime_profile, .-_dl_runtime_profile\n\
.previous\n\
");
#endif //PROF
/* Mask identifying addresses reserved for the user program,
where the dynamic linker should not map anything. */
#define ELF_MACHINE_USER_ADDRESS_MASK 0xf8000000UL
/* Initial entry point code for the dynamic linker.
The C function `_dl_start' is the real entry point;
its return value is the user program's entry point. */
#define RTLD_START asm ("\
.text\n\
.globl _start\n\
.globl _dl_start_user\n\
_start:\n\
@ we are PIC code, so get global offset table\n\
ldr sl, .L_GET_GOT\n\
@ See if we were run as a command with the executable file\n\
@ name as an extra leading argument.\n\
ldr r4, .L_SKIP_ARGS\n\
@ at start time, all the args are on the stack\n\
mov r0, sp\n\
bl _dl_start\n\
@ returns user entry point in r0\n\
_dl_start_user:\n\
add sl, pc, sl\n\
.L_GOT_GOT:\n\
ldr r4, [sl, r4]\n\
@ get the original arg count\n\
ldr r1, [sp]\n\
@ save the entry point in another register\n\
mov r6, r0\n\
@ adjust the stack pointer to skip the extra args\n\
add sp, sp, r4, lsl #2\n\
@ subtract _dl_skip_args from original arg count\n\
sub r1, r1, r4\n\
@ get the argv address\n\
add r2, sp, #4\n\
@ store the new argc in the new stack location\n\
str r1, [sp]\n\
@ compute envp\n\
add r3, r2, r1, lsl #2\n\
add r3, r3, #4\n\
\n\
@ now we call _dl_init\n\
ldr r0, .L_LOADED\n\
ldr r0, [sl, r0]\n\
@ call _dl_init\n\
bl _dl_init_internal(PLT)\n\
@ load the finalizer function\n\
ldr r0, .L_FINI_PROC\n\
add r0, sl, r0\n\
@ jump to the user_s entry point\n\
" BX(r6) "\n\
.L_GET_GOT:\n\
.word _GLOBAL_OFFSET_TABLE_ - .L_GOT_GOT - 4\n\
.L_SKIP_ARGS:\n\
.word _dl_skip_args(GOTOFF)\n\
.L_FINI_PROC:\n\
.word _dl_fini(GOTOFF)\n\
.L_LOADED:\n\
.word _rtld_local(GOTOFF)\n\
.previous\n\
");
/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so
PLT entries should not be allowed to define the value.
ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
of the main executable's symbols, as for a COPY reloc. */
#define elf_machine_type_class(type) \
((((type) == R_ARM_JUMP_SLOT) * ELF_RTYPE_CLASS_PLT) \
| (((type) == R_ARM_COPY) * ELF_RTYPE_CLASS_COPY))
/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */
#define ELF_MACHINE_JMP_SLOT R_ARM_JUMP_SLOT
/* ARM never uses Elf32_Rela relocations for the dynamic linker.
Prelinked libraries may use Elf32_Rela though. */
#define ELF_MACHINE_PLT_REL 1
/* We define an initialization functions. This is called very early in
_dl_sysdep_start. */
#define DL_PLATFORM_INIT dl_platform_init ()
static inline void __attribute__ ((unused))
dl_platform_init (void)
{
if (GLRO(dl_platform) != NULL && *GLRO(dl_platform) == '\0')
/* Avoid an empty string which would disturb us. */
GLRO(dl_platform) = NULL;
}
static inline Elf32_Addr
elf_machine_fixup_plt (struct link_map *map, lookup_t t,
const Elf32_Rel *reloc,
Elf32_Addr *reloc_addr, Elf32_Addr value)
{
return *reloc_addr = value;
}
/* Return the final value of a plt relocation. */
static inline Elf32_Addr
elf_machine_plt_value (struct link_map *map, const Elf32_Rel *reloc,
Elf32_Addr value)
{
return value;
}
#endif /* !dl_machine_h */
/* ARM never uses Elf32_Rela relocations for the dynamic linker.
Prelinked libraries may use Elf32_Rela though. */
#define ELF_MACHINE_NO_RELA defined RTLD_BOOTSTRAP
#ifdef RESOLVE
/* Deal with an out-of-range PC24 reloc. */
static Elf32_Addr
fix_bad_pc24 (Elf32_Addr *const reloc_addr, Elf32_Addr value)
{
static void *fix_page;
static unsigned int fix_offset;
static size_t pagesize;
Elf32_Word *fix_address;
if (! fix_page)
{
if (! pagesize)
pagesize = getpagesize ();
fix_page = mmap (NULL, pagesize, PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if (! fix_page)
assert (! "could not map page for fixup");
fix_offset = 0;
}
fix_address = (Elf32_Word *)(fix_page + fix_offset);
fix_address[0] = 0xe51ff004; /* ldr pc, [pc, #-4] */
fix_address[1] = value;
fix_offset += 8;
if (fix_offset >= pagesize)
fix_page = NULL;
return (Elf32_Addr)fix_address;
}
/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
MAP is the object containing the reloc. */
auto inline void
__attribute__ ((always_inline))
elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc,
const Elf32_Sym *sym, const struct r_found_version *version,
void *const reloc_addr_arg)
{
Elf32_Addr *const reloc_addr = reloc_addr_arg;
const unsigned int r_type = ELF32_R_TYPE (reloc->r_info);
#if !defined RTLD_BOOTSTRAP || !defined HAVE_Z_COMBRELOC
if (__builtin_expect (r_type == R_ARM_RELATIVE, 0))
{
# if !defined RTLD_BOOTSTRAP && !defined HAVE_Z_COMBRELOC
/* This is defined in rtld.c, but nowhere in the static libc.a;
make the reference weak so static programs can still link.
This declaration cannot be done when compiling rtld.c
(i.e. #ifdef RTLD_BOOTSTRAP) because rtld.c contains the
common defn for _dl_rtld_map, which is incompatible with a
weak decl in the same file. */
# ifndef SHARED
weak_extern (_dl_rtld_map);
# endif
if (map != &GL(dl_rtld_map)) /* Already done in rtld itself. */
# endif
*reloc_addr += map->l_addr;
}
# ifndef RTLD_BOOTSTRAP
else if (__builtin_expect (r_type == R_ARM_NONE, 0))
return;
# endif
else
#endif
{
const Elf32_Sym *const refsym = sym;
Elf32_Addr value = RESOLVE (&sym, version, r_type);
if (sym)
value += sym->st_value;
switch (r_type)
{
case R_ARM_COPY:
if (sym == NULL)
/* This can happen in trace mode if an object could not be
found. */
break;
if (sym->st_size > refsym->st_size
|| (GLRO(dl_verbose) && sym->st_size < refsym->st_size))
{
const char *strtab;
strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
_dl_error_printf ("\
%s: Symbol `%s' has different size in shared object, consider re-linking\n",
rtld_progname ?: "<program name unknown>",
strtab + refsym->st_name);
}
memcpy (reloc_addr_arg, (void *) value,
MIN (sym->st_size, refsym->st_size));
break;
case R_ARM_GLOB_DAT:
case R_ARM_JUMP_SLOT:
# ifdef RTLD_BOOTSTRAP
/* Fix weak undefined references. */
if (sym != NULL && sym->st_value == 0)
*reloc_addr = 0;
else
# endif
*reloc_addr = value;
break;
case R_ARM_ABS32:
{
# ifndef RTLD_BOOTSTRAP
/* This is defined in rtld.c, but nowhere in the static
libc.a; make the reference weak so static programs can
still link. This declaration cannot be done when
compiling rtld.c (i.e. #ifdef RTLD_BOOTSTRAP) because
rtld.c contains the common defn for _dl_rtld_map, which
is incompatible with a weak decl in the same file. */
# ifndef SHARED
weak_extern (_dl_rtld_map);
# endif
if (map == &GL(dl_rtld_map))
/* Undo the relocation done here during bootstrapping.
Now we will relocate it anew, possibly using a
binding found in the user program or a loaded library
rather than the dynamic linker's built-in definitions
used while loading those libraries. */
value -= map->l_addr + refsym->st_value;
# endif
*reloc_addr += value;
break;
}
case R_ARM_PC24:
{
Elf32_Sword addend;
Elf32_Addr newvalue, topbits;
addend = *reloc_addr & 0x00ffffff;
if (addend & 0x00800000) addend |= 0xff000000;
newvalue = value - (Elf32_Addr)reloc_addr + (addend << 2);
topbits = newvalue & 0xfe000000;
if (topbits != 0xfe000000 && topbits != 0x00000000)
{
newvalue = fix_bad_pc24(reloc_addr, value)
- (Elf32_Addr)reloc_addr + (addend << 2);
topbits = newvalue & 0xfe000000;
if (topbits != 0xfe000000 && topbits != 0x00000000)
{
_dl_signal_error (0, map->l_name, NULL,
"R_ARM_PC24 relocation out of range");
}
}
newvalue >>= 2;
value = (*reloc_addr & 0xff000000) | (newvalue & 0x00ffffff);
*reloc_addr = value;
}
break;
default:
_dl_reloc_bad_type (map, r_type, 0);
break;
}
}
}
# ifndef RTLD_BOOTSTRAP
auto inline void
__attribute__ ((always_inline))
elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
const Elf32_Sym *sym, const struct r_found_version *version,
void *const reloc_addr_arg)
{
Elf32_Addr *const reloc_addr = reloc_addr_arg;
const unsigned int r_type = ELF32_R_TYPE (reloc->r_info);
if (__builtin_expect (r_type == R_ARM_RELATIVE, 0))
*reloc_addr = map->l_addr + reloc->r_addend;
else if (__builtin_expect (r_type == R_ARM_NONE, 0))
return;
else
{
# ifndef RESOLVE_CONFLICT_FIND_MAP
const Elf32_Sym *const refsym = sym;
# endif
Elf32_Addr value = RESOLVE (&sym, version, r_type);
if (sym)
value += sym->st_value;
switch (r_type)
{
# ifndef RESOLVE_CONFLICT_FIND_MAP
/* Not needed for dl-conflict.c. */
case R_ARM_COPY:
if (sym == NULL)
/* This can happen in trace mode if an object could not be
found. */
break;
if (sym->st_size > refsym->st_size
|| (GLRO(dl_verbose) && sym->st_size < refsym->st_size))
{
const char *strtab;
strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
_dl_error_printf ("\
%s: Symbol `%s' has different size in shared object, consider re-linking\n",
rtld_progname ?: "<program name unknown>",
strtab + refsym->st_name);
}
memcpy (reloc_addr_arg, (void *) value,
MIN (sym->st_size, refsym->st_size));
break;
# endif /* !RESOLVE_CONFLICT_FIND_MAP */
case R_ARM_GLOB_DAT:
case R_ARM_JUMP_SLOT:
case R_ARM_ABS32:
*reloc_addr = value + reloc->r_addend;
break;
case R_ARM_PC24:
{
Elf32_Addr newvalue, topbits;
newvalue = value + reloc->r_addend - (Elf32_Addr)reloc_addr;
topbits = newvalue & 0xfe000000;
if (topbits != 0xfe000000 && topbits != 0x00000000)
{
newvalue = fix_bad_pc24(reloc_addr, value)
- (Elf32_Addr)reloc_addr + (reloc->r_addend << 2);
topbits = newvalue & 0xfe000000;
if (topbits != 0xfe000000 && topbits != 0x00000000)
{
_dl_signal_error (0, map->l_name, NULL,
"R_ARM_PC24 relocation out of range");
}
}
newvalue >>= 2;
value = (*reloc_addr & 0xff000000) | (newvalue & 0x00ffffff);
*reloc_addr = value;
}
break;
default:
_dl_reloc_bad_type (map, r_type, 0);
break;
}
}
}
# endif
auto inline void
__attribute__ ((always_inline))
elf_machine_rel_relative (Elf32_Addr l_addr, const Elf32_Rel *reloc,
void *const reloc_addr_arg)
{
Elf32_Addr *const reloc_addr = reloc_addr_arg;
*reloc_addr += l_addr;
}
# ifndef RTLD_BOOTSTRAP
auto inline void
__attribute__ ((always_inline))
elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
void *const reloc_addr_arg)
{
Elf32_Addr *const reloc_addr = reloc_addr_arg;
*reloc_addr = l_addr + reloc->r_addend;
}
# endif
auto inline void
__attribute__ ((always_inline))
elf_machine_lazy_rel (struct link_map *map,
Elf32_Addr l_addr, const Elf32_Rel *reloc)
{
Elf32_Addr *const reloc_addr = (void *) (l_addr + reloc->r_offset);
const unsigned int r_type = ELF32_R_TYPE (reloc->r_info);
/* Check for unexpected PLT reloc type. */
if (__builtin_expect (r_type == R_ARM_JUMP_SLOT, 1))
{
if (__builtin_expect (map->l_mach.plt, 0) == 0)
*reloc_addr += l_addr;
else
*reloc_addr = map->l_mach.plt;
}
else
_dl_reloc_bad_type (map, r_type, 1);
}
#endif /* RESOLVE */

102
sysdeps/arm/elf/start.S
View File

@ -1,102 +0,0 @@
/* Startup code for ARM & ELF
Copyright (C) 1995, 1996, 1997, 1998, 2001, 2002 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.
In addition to the permissions in the GNU Lesser General Public
License, the Free Software Foundation gives you unlimited
permission to link the compiled version of this file with other
programs, and to distribute those programs without any restriction
coming from the use of this file. (The GNU Lesser General Public
License restrictions do apply in other respects; for example, they
cover modification of the file, and distribution when not linked
into another program.)
Note that people who make modified versions of this file are not
obligated to grant this special exception for their modified
versions; it is their choice whether to do so. The GNU Lesser
General Public License gives permission to release a modified
version without this exception; this exception also makes it
possible to release a modified version which carries forward this
exception.
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. */
/* This is the canonical entry point, usually the first thing in the text
segment.
Note that the code in the .init section has already been run.
This includes _init and _libc_init
At this entry point, most registers' values are unspecified, except:
a1 Contains a function pointer to be registered with `atexit'.
This is how the dynamic linker arranges to have DT_FINI
functions called for shared libraries that have been loaded
before this code runs.
sp The stack contains the arguments and environment:
0(sp) argc
4(sp) argv[0]
...
(4*argc)(sp) NULL
(4*(argc+1))(sp) envp[0]
...
NULL
*/
.text
.globl _start
.type _start,#function
_start:
/* Fetch address of fini */
ldr ip, =__libc_csu_fini
/* Clear the frame pointer since this is the outermost frame. */
mov fp, #0
/* Pop argc off the stack and save a pointer to argv */
ldr a2, [sp], #4
mov a3, sp
/* Push stack limit */
str a3, [sp, #-4]!
/* Push rtld_fini */
str a1, [sp, #-4]!
/* Set up the other arguments in registers */
ldr a1, =main
ldr a4, =__libc_csu_init
/* Push fini */
str ip, [sp, #-4]!
/* __libc_start_main (main, argc, argv, init, fini, rtld_fini, stack_end) */
/* Let the libc call main and exit with its return code. */
bl __libc_start_main
/* should never get here....*/
bl abort
/* Define a symbol for the first piece of initialized data. */
.data
.globl __data_start
__data_start:
.long 0
.weak data_start
data_start = __data_start

36
sysdeps/arm/fpu/__longjmp.S
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@ -1,36 +0,0 @@
/* longjmp for ARM.
Copyright (C) 1997, 1998 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>
#define _SETJMP_H
#define _ASM
#include <bits/setjmp.h>
/* __longjmp(jmpbuf, val) */
ENTRY (__longjmp)
mov ip, r0 /* save jmp_buf pointer */
movs r0, r1 /* get the return value in place */
moveq r0, #1 /* can't let setjmp() return zero! */
lfmfd f4, 4, [ip] ! /* load the floating point regs */
LOADREGS(ia, ip, {v1-v6, sl, fp, sp, pc})
END (__longjmp)

58
sysdeps/arm/fpu/bits/fenv.h
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@ -1,58 +0,0 @@
/* Copyright (C) 1997, 1998, 1999 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 _FENV_H
# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
#endif
/* Define bits representing exceptions in the FPU status word. */
enum
{
FE_INVALID = 1,
#define FE_INVALID FE_INVALID
FE_DIVBYZERO = 2,
#define FE_DIVBYZERO FE_DIVBYZERO
FE_OVERFLOW = 4,
#define FE_OVERFLOW FE_OVERFLOW
FE_UNDERFLOW = 8,
#define FE_UNDERFLOW FE_UNDERFLOW
};
/* Amount to shift by to convert an exception to a mask bit. */
#define FE_EXCEPT_SHIFT 16
/* All supported exceptions. */
#define FE_ALL_EXCEPT \
(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW)
/* The ARM FPU basically only supports round-to-nearest. Other rounding
modes exist, but you have to encode them in the actual instruction. */
#define FE_TONEAREST 0
/* Type representing exception flags. */
typedef unsigned long int fexcept_t;
/* Type representing floating-point environment. */
typedef struct
{
unsigned long int __cw;
}
fenv_t;
/* If the default argument is used we use this value. */
#define FE_DFL_ENV ((fenv_t *) -1l)

44
sysdeps/arm/fpu/bits/mathdef.h
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@ -1,44 +0,0 @@
/* Copyright (C) 1999, 2000, 2004 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. */
#if !defined _MATH_H && !defined _COMPLEX_H
# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
#endif
#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
# define _MATH_H_MATHDEF 1
/* GCC does not promote `float' values to `double'. */
typedef float float_t; /* `float' expressions are evaluated as
`float'. */
typedef double double_t; /* `double' expressions are evaluated as
`double'. */
/* The values returned by `ilogb' for 0 and NaN respectively. */
# define FP_ILOGB0 (-2147483647)
# define FP_ILOGBNAN (2147483647)
#endif /* ISO C99 */
#ifndef __NO_LONG_DOUBLE_MATH
/* Signal that we do not really have a `long double'. This disables the
declaration of all the `long double' function variants. */
/* XXX The FPA does support this but the patterns in GCC are currently
turned off. */
# define __NO_LONG_DOUBLE_MATH 1
#endif

36
sysdeps/arm/fpu/bits/setjmp.h
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@ -1,36 +0,0 @@
/* Copyright (C) 1997, 1998 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. */
/* Define the machine-dependent type `jmp_buf'. ARM version. */
#ifndef _SETJMP_H
# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
#endif
#ifndef _ASM
/* Jump buffer contains v1-v6, sl, fp, sp and pc. Other registers are not
saved. */
typedef int __jmp_buf[22];
#endif
#define __JMP_BUF_SP 20
/* Test if longjmp to JMPBUF would unwind the frame
containing a local variable at ADDRESS. */
#define _JMPBUF_UNWINDS(jmpbuf, address) \
((void *) (address) < (void *) (jmpbuf[__JMP_BUF_SP]))

50
sysdeps/arm/fpu/fclrexcpt.c
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@ -1,50 +0,0 @@
/* Clear given exceptions in current floating-point environment.
Copyright (C) 1997,98,99,2000,01 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 <fenv.h>
#include <fpu_control.h>
int
__feclearexcept (int excepts)
{
unsigned long int temp;
/* Mask out unsupported bits/exceptions. */
excepts &= FE_ALL_EXCEPT;
/* Get the current floating point status. */
_FPU_GETCW (temp);
/* Clear the relevant bits. */
temp &= excepts ^ FE_ALL_EXCEPT;
/* Put the new data in effect. */
_FPU_SETCW (temp);
/* Success. */
return 0;
}
#include <shlib-compat.h>
#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
strong_alias (__feclearexcept, __old_feclearexcept)
compat_symbol (libm, __old_feclearexcept, feclearexcept, GLIBC_2_1);
#endif
versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2);

40
sysdeps/arm/fpu/fedisblxcpt.c
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@ -1,40 +0,0 @@
/* Disable floating-point exceptions.
Copyright (C) 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Philip Blundell <philb@gnu.org>, 2001.
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 <fenv.h>
#include <fpu_control.h>
int
fedisableexcept (int excepts)
{
unsigned long int new_exc, old_exc;
_FPU_GETCW(new_exc);
old_exc = (new_exc >> FE_EXCEPT_SHIFT) & FE_ALL_EXCEPT;
excepts &= FE_ALL_EXCEPT;
new_exc &= ~(excepts << FE_EXCEPT_SHIFT);
_FPU_SETCW(new_exc);
return old_exc;
}

40
sysdeps/arm/fpu/feenablxcpt.c
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@ -1,40 +0,0 @@
/* Enable floating-point exceptions.
Copyright (C) 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Philip Blundell <philb@gnu.org>, 2001.
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 <fenv.h>
#include <fpu_control.h>
int
feenableexcept (int excepts)
{
unsigned long int new_exc, old_exc;
_FPU_GETCW(new_exc);
old_exc = (new_exc >> FE_EXCEPT_SHIFT) & FE_ALL_EXCEPT;
excepts &= FE_ALL_EXCEPT;
new_exc |= (excepts << FE_EXCEPT_SHIFT);
_FPU_SETCW(new_exc);
return old_exc;
}

40
sysdeps/arm/fpu/fegetenv.c
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@ -1,40 +0,0 @@
/* Store current floating-point environment.
Copyright (C) 1997,98,99,2000,01 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 <fenv.h>
#include <fpu_control.h>
int
__fegetenv (fenv_t *envp)
{
unsigned long int temp;
_FPU_GETCW (temp);
envp->__cw = temp;
/* Success. */
return 0;
}
#include <shlib-compat.h>
#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
strong_alias (__fegetenv, __old_fegetenv)
compat_symbol (libm, __old_fegetenv, fegetenv, GLIBC_2_1);
#endif
versioned_symbol (libm, __fegetenv, fegetenv, GLIBC_2_2);

32
sysdeps/arm/fpu/fegetexcept.c
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@ -1,32 +0,0 @@
/* Get floating-point exceptions.
Copyright (C) 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Philip Blundell <philb@gnu.org>, 2001
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 <fenv.h>
#include <fpu_control.h>
int
fegetexcept (void)
{
unsigned long temp;
_FPU_GETCW (temp);
return (temp >> FE_EXCEPT_SHIFT) & FE_ALL_EXCEPT;
}

26
sysdeps/arm/fpu/fegetround.c
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@ -1,26 +0,0 @@
/* Return current rounding direction.
Copyright (C) 1997, 1998 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 <fenv.h>
int
fegetround (void)
{
return FE_TONEAREST; /* Easy. :-) */
}

37
sysdeps/arm/fpu/feholdexcpt.c
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@ -1,37 +0,0 @@
/* Store current floating-point environment and clear exceptions.
Copyright (C) 1997, 1998, 1999 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 <fenv.h>
#include <fpu_control.h>
int
feholdexcept (fenv_t *envp)
{
unsigned long int temp;
/* Store the environment. */
_FPU_GETCW(temp);
envp->__cw = temp;
/* Now set all exceptions to non-stop. */
temp &= ~(FE_ALL_EXCEPT << FE_EXCEPT_SHIFT);
_FPU_SETCW(temp);
return 0;
}

45
sysdeps/arm/fpu/fesetenv.c
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@ -1,45 +0,0 @@
/* Install given floating-point environment.
Copyright (C) 1997,98,99,2000,01,02 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 <fenv.h>
#include <fpu_control.h>
int
__fesetenv (const fenv_t *envp)
{
if (envp == FE_DFL_ENV)
_FPU_SETCW (_FPU_DEFAULT);
else
{
unsigned long int temp = envp->__cw;
_FPU_SETCW (temp);
}
/* Success. */
return 0;
}
#include <shlib-compat.h>
#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
strong_alias (__fesetenv, __old_fesetenv)
compat_symbol (libm, __old_fesetenv, fesetenv, GLIBC_2_1);
#endif
libm_hidden_ver (__fesetenv, fesetenv)
versioned_symbol (libm, __fesetenv, fesetenv, GLIBC_2_2);

27
sysdeps/arm/fpu/fesetround.c
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@ -1,27 +0,0 @@
/* Set current rounding direction.
Copyright (C) 1997, 1998 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 <fenv.h>
int
fesetround (int round)
{
/* We only support FE_TONEAREST, so there is no need for any work. */
return (round == FE_TONEAREST)?0:1;
}

102
sysdeps/arm/fpu/fpu_control.h
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@ -1,102 +0,0 @@
/* FPU control word definitions. ARM version.
Copyright (C) 1996, 1997, 1998, 2000 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 _FPU_CONTROL_H
#define _FPU_CONTROL_H
/* We have a slight terminology confusion here. On the ARM, the register
* we're interested in is actually the FPU status word - the FPU control
* word is something different (which is implementation-defined and only
* accessible from supervisor mode.)
*
* The FPSR looks like this:
*
* 31-24 23-16 15-8 7-0
* | system ID | trap enable | system control | exception flags |
*
* We ignore the system ID bits; for interest's sake they are:
*
* 0000 "old" FPE
* 1000 FPPC hardware
* 0001 FPE 400
* 1001 FPA hardware
*
* The trap enable and exception flags are both structured like this:
*
* 7 - 5 4 3 2 1 0
* | reserved | INX | UFL | OFL | DVZ | IVO |
*
* where a `1' bit in the enable byte means that the trap can occur, and
* a `1' bit in the flags byte means the exception has occurred.
*
* The exceptions are:
*
* IVO - invalid operation
* DVZ - divide by zero
* OFL - overflow
* UFL - underflow
* INX - inexact (do not use; implementations differ)
*
* The system control byte looks like this:
*
* 7-5 4 3 2 1 0
* | reserved | AC | EP | SO | NE | ND |
*
* where the bits mean
*
* ND - no denormalised numbers (force them all to zero)
* NE - enable NaN exceptions
* SO - synchronous operation
* EP - use expanded packed-decimal format
* AC - use alternate definition for C flag on compare operations
*/
/* masking of interrupts */
#define _FPU_MASK_IM 0x00010000 /* invalid operation */
#define _FPU_MASK_ZM 0x00020000 /* divide by zero */
#define _FPU_MASK_OM 0x00040000 /* overflow */
#define _FPU_MASK_UM 0x00080000 /* underflow */
#define _FPU_MASK_PM 0x00100000 /* inexact */
#define _FPU_MASK_DM 0x00000000 /* denormalized operation */
/* The system id bytes cannot be changed.
Only the bottom 5 bits in the trap enable byte can be changed.
Only the bottom 5 bits in the system control byte can be changed.
Only the bottom 5 bits in the exception flags are used.
The exception flags are set by the fpu, but can be zeroed by the user. */
#define _FPU_RESERVED 0xffe0e0e0 /* These bits are reserved. */
/* The fdlibm code requires strict IEEE double precision arithmetic,
no interrupts for exceptions, rounding to nearest. Changing the
rounding mode will break long double I/O. Turn on the AC bit,
the compiler generates code that assumes it is on. */
#define _FPU_DEFAULT 0x00001000 /* Default value. */
#define _FPU_IEEE 0x001f1000 /* Default + exceptions enabled. */
/* Type of the control word. */
typedef unsigned int fpu_control_t;
/* Macros for accessing the hardware control word. */
#define _FPU_GETCW(cw) __asm__ ("rfs %0" : "=r" (cw))
#define _FPU_SETCW(cw) __asm__ ("wfs %0" : : "r" (cw))
/* Default control word set at startup. */
extern fpu_control_t __fpu_control;
#endif /* _FPU_CONTROL_H */

44
sysdeps/arm/fpu/fraiseexcpt.c
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@ -1,44 +0,0 @@
/* Raise given exceptions.
Copyright (C) 1997,98,99,2000,01,02 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 <fenv.h>
#include <fpu_control.h>
#include <math.h>
int
__feraiseexcept (int excepts)
{
/* Raise exceptions represented by EXPECTS. */
fexcept_t temp;
_FPU_GETCW (temp);
temp |= (excepts & FE_ALL_EXCEPT);
_FPU_SETCW (temp);
/* Success. */
return 0;
}
#include <shlib-compat.h>
#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
strong_alias (__feraiseexcept, __old_feraiseexcept)
compat_symbol (libm, __old_feraiseexcept, feraiseexcept, GLIBC_2_1);
#endif
libm_hidden_ver (__feraiseexcept, feraiseexcept)
versioned_symbol (libm, __feraiseexcept, feraiseexcept, GLIBC_2_2);

49
sysdeps/arm/fpu/fsetexcptflg.c
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@ -1,49 +0,0 @@
/* Set floating-point environment exception handling.
Copyright (C) 1997,98,99,2000,01 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 <fenv.h>
#include <math.h>
#include <fpu_control.h>
int
__fesetexceptflag (const fexcept_t *flagp, int excepts)
{
fexcept_t temp;
/* Get the current environment. */
_FPU_GETCW (temp);
/* Set the desired exception mask. */
temp &= ~((excepts & FE_ALL_EXCEPT) << FE_EXCEPT_SHIFT);
temp |= (*flagp & excepts & FE_ALL_EXCEPT) << FE_EXCEPT_SHIFT;
/* Save state back to the FPU. */
_FPU_SETCW (temp);
/* Success. */
return 0;
}
#include <shlib-compat.h>
#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
strong_alias (__fesetexceptflag, __old_fesetexceptflag)
compat_symbol (libm, __old_fesetexceptflag, fesetexceptflag, GLIBC_2_1);
#endif
versioned_symbol (libm, __fesetexceptflag, fesetexceptflag, GLIBC_2_2);

32
sysdeps/arm/fpu/ftestexcept.c
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@ -1,32 +0,0 @@
/* Test exception in current environment.
Copyright (C) 1997, 1998 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 <fenv.h>
#include <fpu_control.h>
int
fetestexcept (int excepts)
{
fexcept_t temp;
/* Get current exceptions. */
_FPU_GETCW(temp);
return temp & excepts & FE_ALL_EXCEPT;
}

35
sysdeps/arm/fpu/setjmp.S
View File

@ -1,35 +0,0 @@
/* setjmp for ARM.
Copyright (C) 1997, 1998 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>
#define _SETJMP_H
#define _ASM
#include <bits/setjmp.h>
ENTRY (__sigsetjmp)
/* Save registers */
sfmea f4, 4, [r0]!
stmia r0, {v1-v6, sl, fp, sp, lr}
/* Restore pointer to jmp_buf */
sub r0, r0, #48
/* Make a tail call to __sigjmp_save; it takes the same args. */
B PLTJMP(C_SYMBOL_NAME(__sigjmp_save))
END (__sigsetjmp)

28
sysdeps/arm/frame.h
View File

@ -1,28 +0,0 @@
/* Definition of stack frame structure. ARM/APCS version.
Copyright (C) 2000, 2002 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. */
/* This is the APCS stack backtrace structure. */
struct layout
{
struct layout *__unbounded next;
void *__unbounded sp;
void *__unbounded return_address;
};
#define FIRST_FRAME_POINTER ADVANCE_STACK_FRAME (__builtin_frame_address (0))

22
sysdeps/arm/gccframe.h
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@ -1,22 +0,0 @@
/* Definition of object in frame unwind info. arm version.
Copyright (C) 2001 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. */
#define FIRST_PSEUDO_REGISTER 27
#include <sysdeps/generic/gccframe.h>

30
sysdeps/arm/gmp-mparam.h
View File

@ -1,30 +0,0 @@
/* gmp-mparam.h -- Compiler/machine parameter header file.
Copyright (C) 1991, 1993, 1994, 1995 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP 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 MP 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 MP Library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */
#define BITS_PER_MP_LIMB 32
#define BYTES_PER_MP_LIMB 4
#define BITS_PER_LONGINT 32
#define BITS_PER_INT 32
#define BITS_PER_SHORTINT 16
#define BITS_PER_CHAR 8
#define IEEE_DOUBLE_BIG_ENDIAN 0
#define IEEE_DOUBLE_MIXED_ENDIAN 1

115
sysdeps/arm/ieee754.h
View File

@ -1,115 +0,0 @@
/* Copyright (C) 1992, 1995, 1996, 1998 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 _IEEE754_H
#define _IEEE754_H 1
#include <features.h>
#include <endian.h>
__BEGIN_DECLS
union ieee754_float
{
float f;
/* This is the IEEE 754 single-precision format. */
struct
{
unsigned int mantissa:23;
unsigned int exponent:8;
unsigned int negative:1;
} ieee;
/* This format makes it easier to see if a NaN is a signalling NaN. */
struct
{
unsigned int mantissa:22;
unsigned int quiet_nan:1;
unsigned int exponent:8;
unsigned int negative:1;
} ieee_nan;
};
#define IEEE754_FLOAT_BIAS 0x7f /* Added to exponent. */
union ieee754_double
{
double d;
/* This is the IEEE 754 double-precision format. */
struct
{
unsigned int mantissa0:20;
unsigned int exponent:11;
unsigned int negative:1;
unsigned int mantissa1:32;
} ieee;
/* This format makes it easier to see if a NaN is a signalling NaN. */
struct
{
unsigned int mantissa0:19;
unsigned int quiet_nan:1;
unsigned int exponent:11;
unsigned int negative:1;
unsigned int mantissa1:32;
} ieee_nan;
};
#define IEEE754_DOUBLE_BIAS 0x3ff /* Added to exponent. */
/* The following two structures are correct for `new' floating point systems but
wrong for the old FPPC. The only solution seems to be to avoid their use on
old hardware. */
union ieee854_long_double
{
long double d;
/* This is the IEEE 854 double-extended-precision format. */
struct
{
unsigned int exponent:15;
unsigned int empty:16;
unsigned int negative:1;
unsigned int mantissa1:32;
unsigned int mantissa0:32;
} ieee;
/* This is for NaNs in the IEEE 854 double-extended-precision format. */
struct
{
unsigned int exponent:15;
unsigned int empty:16;
unsigned int negative:1;
unsigned int mantissa1:32;
unsigned int mantissa0:30;
unsigned int quiet_nan:1;
unsigned int one:1;
} ieee_nan;
};
#define IEEE854_LONG_DOUBLE_BIAS 0x3fff
__END_DECLS
#endif /* ieee754.h */

73
sysdeps/arm/init-first.c
View File

@ -1,73 +0,0 @@
/* Initialization code run first thing by the ELF startup code. For ARM.
Copyright (C) 1995,1996,1997,1998,2001,2002 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 <unistd.h>
extern void __libc_init (int, char **, char **);
#ifdef USE_NONOPTION_FLAGS
extern void __getopt_clean_environment (char **);
#endif
extern void __libc_global_ctors (void);
int __libc_multiple_libcs attribute_hidden = 1;
static void
init (int *data)
{
int argc = *data;
char **argv = (void *) (data + 1);
char **envp = &argv[argc + 1];
__environ = envp;
__libc_init (argc, argv, envp);
#ifdef USE_NONOPTION_FLAGS
/* This is a hack to make the special getopt in GNU libc working. */
__getopt_clean_environment (envp);
#endif
}
#ifdef SHARED
/* This function is called to initialize the shared C library.
It is called just before the user _start code from i386/elf/start.S,
with the stack set up as that code gets it. */
/* NOTE! The linker notices the magical name `_init' and sets the DT_INIT
pointer in the dynamic section based solely on that. It is convention
for this function to be in the `.init' section, but the symbol name is
the only thing that really matters!! */
/*void _init (int argc, ...) __attribute__ ((unused, section (".init")));*/
void
_init (int argc, ...)
{
init (&argc);
__libc_global_ctors ();
}
#endif
void
__libc_init_first (int argc __attribute__ ((unused)), ...)
{
#ifndef SHARED
init (&argc);
#endif
}

1079
sysdeps/arm/libm-test-ulps
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File diff suppressed because it is too large Load Diff

67
sysdeps/arm/machine-gmon.h
View File

@ -1,67 +0,0 @@
/* Machine-dependent definitions for profiling support. ARM version.
Copyright (C) 1996, 1997, 1998 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. */
/* GCC for the ARM cannot compile __builtin_return_address(N) for N != 0,
so we must use an assembly stub. */
#include <sysdep.h>
#ifndef NO_UNDERSCORES
/* The asm symbols for C functions are `_function'.
The canonical name for the counter function is `mcount', no _. */
void _mcount (void) asm ("mcount");
#else
/* The canonical name for the function is `_mcount' in both C and asm,
but some old asm code might assume it's `mcount'. */
void _mcount (void);
weak_alias (_mcount, mcount)
#endif
static void mcount_internal (u_long frompc, u_long selfpc) __attribute_used__;
#define _MCOUNT_DECL(frompc, selfpc) \
static void mcount_internal (u_long frompc, u_long selfpc)
/* This macro/func MUST save r0, r1 because the compiler inserts
blind calls to _mount(), ignoring the fact that _mcount may
clobber registers; therefore, _mcount may NOT clobber registers */
/* if (this_fp!=0) {
r0 = this_fp
r1 = this_lr
r1 = [r1-4] which is caller's lr
if (r1!=0)
r1 = caller's lr
call mcount_internal(this_lr, caller's_lr)
}
*/
#define MCOUNT \
void _mcount (void) \
{ \
__asm__("stmdb sp!, {r0, r1, r2, r3};" \
"movs fp, fp;" \
"moveq r1, #0;" \
"ldrne r1, [fp, $-4];" \
"ldrne r0, [fp, $-12];" \
"movnes r0, r0;" \
"ldrne r0, [r0, $-4];" \
"movs r0, r0;" \
"blne mcount_internal;" \
"ldmia sp!, {r0, r1, r2, r3}"); \
}

67
sysdeps/arm/memset.S
View File

@ -1,67 +0,0 @@
/* Copyright (C) 1998, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Philip Blundell <philb@gnu.org>
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>
/* void *memset (dstpp, c, len) */
ENTRY(memset)
mov r3, r0
cmp r2, #8
bcc 2f @ less than 8 bytes to move
1:
tst r3, #3 @ aligned yet?
strneb r1, [r3], #1
subne r2, r2, #1
bne 1b
orr r1, r1, r1, lsl $8
orr r1, r1, r1, lsl $16
1:
subs r2, r2, #8
strcs r1, [r3], #4 @ store up to 32 bytes per loop iteration
strcs r1, [r3], #4
subcss r2, r2, #8
strcs r1, [r3], #4
strcs r1, [r3], #4
subcss r2, r2, #8
strcs r1, [r3], #4
strcs r1, [r3], #4
subcss r2, r2, #8
strcs r1, [r3], #4
strcs r1, [r3], #4
bcs 1b
and r2, r2, #7
2:
subs r2, r2, #1 @ store up to 4 bytes per loop iteration
strcsb r1, [r3], #1
subcss r2, r2, #1
strcsb r1, [r3], #1
subcss r2, r2, #1
strcsb r1, [r3], #1
subcss r2, r2, #1
strcsb r1, [r3], #1
bcs 2b
DO_RET(lr)
END(memset)
libc_hidden_builtin_def (memset)

21
sysdeps/arm/memusage.h
View File

@ -1,21 +0,0 @@
/* Copyright (C) 2000 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. */
#define GETSP() ({ register uintptr_t stack_ptr asm ("sp"); stack_ptr; })
#include <sysdeps/generic/memusage.h>

31
sysdeps/arm/setjmp.S
View File

@ -1,31 +0,0 @@
/* setjmp for ARM.
Copyright (C) 1997, 1998 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>
#define _SETJMP_H
#define _ASM
#include <bits/setjmp.h>
ENTRY (__sigsetjmp)
/* Save registers */
stmia r0, {v1-v6, sl, fp, sp, lr}
/* Make a tail call to __sigjmp_save; it takes the same args. */
B PLTJMP(C_SYMBOL_NAME(__sigjmp_save))
END (__sigsetjmp)

28
sysdeps/arm/stackinfo.h
View File

@ -1,28 +0,0 @@
/* Copyright (C) 2001 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. */
/* This file contains a bit of information about the stack allocation
of the processor. */
#ifndef _STACKINFO_H
#define _STACKINFO_H 1
/* On Arm the stack grows down. */
#define _STACK_GROWS_DOWN 1
#endif /* stackinfo.h */

73
sysdeps/arm/strlen.S
View File

@ -1,73 +0,0 @@
/* Copyright (C) 1998, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Code contributed by Matthew Wilcox <willy@odie.barnet.ac.uk>
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>
/* size_t strlen(const char *S)
* entry: r0 -> string
* exit: r0 = len
*/
ENTRY(strlen)
bic r1, r0, $3 @ addr of word containing first byte
ldr r2, [r1], $4 @ get the first word
ands r3, r0, $3 @ how many bytes are duff?
rsb r0, r3, $0 @ get - that number into counter.
beq Laligned @ skip into main check routine if no
@ more
#ifdef __ARMEB__
orr r2, r2, $0xff000000 @ set this byte to non-zero
subs r3, r3, $1 @ any more to do?
orrgt r2, r2, $0x00ff0000 @ if so, set this byte
subs r3, r3, $1 @ more?
orrgt r2, r2, $0x0000ff00 @ then set.
#else
orr r2, r2, $0x000000ff @ set this byte to non-zero
subs r3, r3, $1 @ any more to do?
orrgt r2, r2, $0x0000ff00 @ if so, set this byte
subs r3, r3, $1 @ more?
orrgt r2, r2, $0x00ff0000 @ then set.
#endif
Laligned: @ here, we have a word in r2. Does it
tst r2, $0x000000ff @ contain any zeroes?
tstne r2, $0x0000ff00 @
tstne r2, $0x00ff0000 @
tstne r2, $0xff000000 @
addne r0, r0, $4 @ if not, the string is 4 bytes longer
ldrne r2, [r1], $4 @ and we continue to the next word
bne Laligned @
Llastword: @ drop through to here once we find a
#ifdef __ARMEB__
tst r2, $0xff000000 @ word that has a zero byte in it
addne r0, r0, $1 @
tstne r2, $0x00ff0000 @ and add up to 3 bytes on to it
addne r0, r0, $1 @
tstne r2, $0x0000ff00 @ (if first three all non-zero, 4th
addne r0, r0, $1 @ must be zero)
#else
tst r2, $0x000000ff @ word that has a zero byte in it
addne r0, r0, $1 @
tstne r2, $0x0000ff00 @ and add up to 3 bytes on to it
addne r0, r0, $1 @
tstne r2, $0x00ff0000 @ (if first three all non-zero, 4th
addne r0, r0, $1 @ must be zero)
#endif
DO_RET(lr)
END(strlen)
libc_hidden_builtin_def (strlen)

95
sysdeps/arm/sys/ucontext.h
View File

@ -1,95 +0,0 @@
/* Copyright (C) 1998, 1999 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. */
/* System V/ARM ABI compliant context switching support. */
#ifndef _SYS_UCONTEXT_H
#define _SYS_UCONTEXT_H 1
#include <features.h>
#include <signal.h>
typedef int greg_t;
/* Number of general registers. */
#define NGREG 16
/* Container for all general registers. */
typedef greg_t gregset_t[NGREG];
/* Number of each register is the `gregset_t' array. */
enum
{
R0 = 0,
#define R0 R0
R1 = 1,
#define R1 R1
R2 = 2,
#define R2 R2
R3 = 3,
#define R3 R3
R4 = 4,
#define R4 R4
R5 = 5,
#define R5 R5
R6 = 6,
#define R6 R6
R7 = 7,
#define R7 R7
R8 = 8,
#define R8 R8
R9 = 9,
#define R9 R9
R10 = 10,
#define R10 R10
R11 = 11,
#define R11 R11
R12 = 12,
#define R12 R12
R13 = 13,
#define R13 R13
R14 = 14,
#define R14 R14
R15 = 15,
#define R15 R15
};
/* Structure to describe FPU registers. */
typedef struct fpregset
{
} fpregset_t;
/* Context to describe whole processor state. */
typedef struct
{
gregset_t gregs;
fpregset_t fpregs;
} mcontext_t;
/* Userlevel context. */
typedef struct ucontext
{
unsigned long int uc_flags;
struct ucontext *uc_link;
__sigset_t uc_sigmask;
stack_t uc_stack;
mcontext_t uc_mcontext;
long int uc_filler[5];
} ucontext_t;
#endif /* sys/ucontext.h */

108
sysdeps/arm/sysdep.h
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@ -1,108 +0,0 @@
/* Assembler macros for ARM.
Copyright (C) 1997, 1998, 2003 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 <sysdeps/generic/sysdep.h>
#if (!defined (__ARM_ARCH_2__) && !defined (__ARM_ARCH_3__) \
&& !defined (__ARM_ARCH_3M__) && !defined (__ARM_ARCH_4__))
# define __USE_BX__
#endif
#ifdef __ASSEMBLER__
/* Syntactic details of assembler. */
#ifdef HAVE_ELF
#define ALIGNARG(log2) log2
/* For ELF we need the `.type' directive to make shared libs work right. */
#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,%##typearg;
#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
/* In ELF C symbols are asm symbols. */
#undef NO_UNDERSCORES
#define NO_UNDERSCORES
#define PLTJMP(_x) _x##(PLT)
#else
#define ALIGNARG(log2) log2
#define ASM_TYPE_DIRECTIVE(name,type) /* Nothing is specified. */
#define ASM_SIZE_DIRECTIVE(name) /* Nothing is specified. */
#define PLTJMP(_x) _x
#endif
/* APCS-32 doesn't preserve the condition codes across function call. */
#ifdef __APCS_32__
#define LOADREGS(cond, base, reglist...)\
ldm##cond base,reglist
#ifdef __USE_BX__
#define RETINSTR(cond, reg) \
bx##cond reg
#define DO_RET(_reg) \
bx _reg
#else
#define RETINSTR(cond, reg) \
mov##cond pc, reg
#define DO_RET(_reg) \
mov pc, _reg
#endif
#else /* APCS-26 */
#define LOADREGS(cond, base, reglist...)\
ldm##cond base,reglist^
#define RETINSTR(cond, reg) \
mov##cond##s pc, reg
#define DO_RET(_reg) \
movs pc, _reg
#endif
/* Define an entry point visible from C. */
#define ENTRY(name) \
ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),function) \
.align ALIGNARG(4); \
C_LABEL(name) \
CALL_MCOUNT
#undef END
#define END(name) \
ASM_SIZE_DIRECTIVE(name)
/* If compiled for profiling, call `mcount' at the start of each function. */
#ifdef PROF
#define CALL_MCOUNT \
str lr,[sp, #-4]! ; \
bl PLTJMP(mcount) ; \
ldr lr, [sp], #4 ;
#else
#define CALL_MCOUNT /* Do nothing. */
#endif
#ifdef NO_UNDERSCORES
/* Since C identifiers are not normally prefixed with an underscore
on this system, the asm identifier `syscall_error' intrudes on the
C name space. Make sure we use an innocuous name. */
#define syscall_error __syscall_error
#define mcount _mcount
#endif
#endif /* __ASSEMBLER__ */

1
sysdeps/unix/arm/Dist
View File

@ -1 +0,0 @@
dl-brk.S

56
sysdeps/unix/arm/brk.S
View File

@ -1,56 +0,0 @@
/* Copyright (C) 1991, 92, 93, 95, 97, 98 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>
#ifndef SYS_brk
#define SYS_brk 17
#endif
.data
.globl C_SYMBOL_NAME(__curbrk)
C_LABEL(__curbrk)
#ifdef HAVE_GNU_LD
.long C_SYMBOL_NAME(_end)
#else
.long C_SYMBOL_NAME(end)
#endif
.text
SYSCALL__ (brk, 1)
#ifdef PIC
ldr r1, 1f
ldr r2, _cb_addr
2: add r1, pc, r1
add r1, r1, r2
#else
ldr r1, _cb_addr
#endif
str r0, [r1]
mov r0, $0
DO_RET (r14)
#ifdef PIC
1: .long _GLOBAL_OFFSET_TABLE_ - 2b - 8
_cb_addr:
.long C_SYMBOL_NAME(__curbrk)(GOTOFF)
#else
_cb_addr:
.long C_SYMBOL_NAME(__curbrk)
#endif
weak_alias (__brk, brk)

1
sysdeps/unix/arm/dl-brk.S
View File

@ -1 +0,0 @@
#include <brk.S>

34
sysdeps/unix/arm/fork.S
View File

@ -1,34 +0,0 @@
/* Copyright (C) 1991,92,94,95,97,2002 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>
/* ARM version. */
SYSCALL__ (fork, 0)
/* R1 is now 0 for the parent and 1 for the child. Decrement it to
make it -1 (all bits set) for the parent, and 0 (no bits set)
for the child. Then AND it with R0, so the parent gets
R0&-1==R0, and the child gets R0&0==0. */
sub r1, r1, $1
and r0, r0, r1
DO_RET (r14)
PSEUDO_END (__fork)
libc_hidden_def (__fork)
weak_alias (__fork, fork)

97
sysdeps/unix/arm/start.c
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@ -1,97 +0,0 @@
/* Special startup code for ARM a.out binaries.
Copyright (C) 1998, 2004 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.
In addition to the permissions in the GNU Lesser General Public
License, the Free Software Foundation gives you unlimited
permission to link the compiled version of this file with other
programs, and to distribute those programs without any restriction
coming from the use of this file. (The GNU Lesser General Public
License restrictions do apply in other respects; for example, they
cover modification of the file, and distribution when not linked
into another program.)
Note that people who make modified versions of this file are not
obligated to grant this special exception for their modified
versions; it is their choice whether to do so. The GNU Lesser
General Public License gives permission to release a modified
version without this exception; this exception also makes it
possible to release a modified version which carries forward this
exception.
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 <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <sysdep.h>
/* The first piece of initialized data. */
int __data_start = 0;
#ifdef HAVE_WEAK_SYMBOLS
weak_alias (__data_start, data_start)
#endif
extern void __libc_init (int argc, char **argv, char **envp);
extern int main (int argc, char **argv, char **envp);
/* N.B.: It is important that this be the first function.
This file is the first thing in the text section. */
/* If this was in C it might create its own stack frame and
screw up the arguments. */
#ifdef NO_UNDERSCORES
asm (".text; .globl _start; _start: B start1");
#else
asm (".text; .globl __start; __start: B _start1");
/* Make an alias called `start' (no leading underscore, so it can't
conflict with C symbols) for `_start'. This is the name vendor crt0.o's
tend to use, and thus the name most linkers expect. */
asm (".set start, __start");
#endif
/* Fool gcc into thinking that more args are passed. This makes it look
on the stack (correctly) for the real arguments. It causes somewhat
strange register usage in start1(), but we aren't too bothered about
that at the moment. */
#define DUMMIES a1, a2, a3, a4
#ifdef DUMMIES
#define ARG_DUMMIES DUMMIES,
#define DECL_DUMMIES int DUMMIES;
#else
#define ARG_DUMMIES
#define DECL_DUMMIES
#endif
/* ARGSUSED */
static void
start1 (ARG_DUMMIES argc, argv, envp)
DECL_DUMMIES
int argc;
char **argv;
char **envp;
{
/* Store a pointer to the environment. */
__environ = envp;
/* Do C library initializations. */
__libc_init (argc, argv, __environ);
/* Call the user program. */
exit (main (argc, argv, __environ));
}

71
sysdeps/unix/arm/sysdep.S
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@ -1,71 +0,0 @@
/* Copyright (C) 1991,92,93,94,95,96,97,98,2002,03 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>
#define _ERRNO_H
#include <bits/errno.h>
.globl C_SYMBOL_NAME(errno)
.globl syscall_error
#undef syscall_error
#ifdef NO_UNDERSCORES
__syscall_error:
#else
syscall_error:
#endif
#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
/* We translate the system's EWOULDBLOCK error into EAGAIN.
The GNU C library always defines EWOULDBLOCK==EAGAIN.
EWOULDBLOCK_sys is the original number. */
cmp r0, $EWOULDBLOCK_sys /* Is it the old EWOULDBLOCK? */
moveq r0, $EAGAIN /* Yes; translate it to EAGAIN. */
#endif
#ifdef _LIBC_REENTRANT
str lr, [sp, #-4]!
str r0, [sp, #-4]!
bl PLTJMP(C_SYMBOL_NAME(__errno_location))
ldr r1, [sp], #4
str r1, [r0]
mvn r0, $0
ldr pc, [sp], #4
#else
#ifndef PIC
ldr r1, 1f
str r0, [r1]
mvn r0, $0
DO_RET (r14)
1: .long C_SYMBOL_NAME(errno)
#else
@ we have to establish our PIC register
ldr r2, 1f
ldr r1, 2f
0: add r2, pc, r2
str r0, [r1, r2]
mvn r0, $0
DO_RET (r14)
1: .word _GLOBAL_OFFSET_TABLE_ - 0b - 8
2: .word C_SYMBOL_NAME(errno)(GOTOFF)
#endif
#endif
#undef __syscall_error
END (__syscall_error)

30
sysdeps/unix/arm/sysdep.h
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@ -1,30 +0,0 @@
/* Copyright (C) 1997, 1998 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 <sysdeps/unix/sysdep.h>
#include <sysdeps/arm/sysdep.h>
/* Some definitions to allow the assembler in sysdeps/unix/ to build
without needing ARM-specific versions of all the files. */
#ifdef __ASSEMBLER__
#define ret DO_RET (r14)
#define MOVE(a,b) mov b,a
#endif

14
sysdeps/unix/sysv/linux/arm/Dist
View File

@ -1,14 +0,0 @@
clone.S
dl-procinfo.h
ioperm.c
setresuid.c
setresgid.c
setfsuid.c
setfsgid.c
sigrestorer.S
bits/armsigctx.h
sys/elf.h
sys/io.h
sys/procfs.h
sys/user.h
oldgetrlimit64.c

12
sysdeps/unix/sysv/linux/arm/Makefile
View File

@ -1,12 +0,0 @@
ifeq ($(subdir),misc)
sysdep_routines += ioperm
sysdep_headers += sys/elf.h sys/io.h
endif
ifeq ($(subdir),signal)
sysdep_routines += sigrestorer
endif
ifeq ($(subdir),resource)
sysdep_routines += oldgetrlimit64
endif

37
sysdeps/unix/sysv/linux/arm/Versions
View File

@ -1,37 +0,0 @@
libc {
GLIBC_2.0 {
# Exception handling support functions from libgcc
__register_frame; __register_frame_table; __deregister_frame;
__frame_state_for; __register_frame_info_table;
}
GLIBC_2.1 {
ioperm; iopl;
inb; inw; inl;
outb; outw; outl;
}
GLIBC_2.2 {
# functions used in other libraries
__xstat64; __fxstat64; __lxstat64;
# a*
alphasort64;
# g*
glob64;
# New rlimit interface
getrlimit; setrlimit; getrlimit64;
# r*
readdir64; readdir64_r;
# s*
scandir64;
# v*
versionsort64;
}
GLIBC_2.3.3 {
posix_fadvise64; posix_fallocate64;
}
}

1
sysdeps/unix/sysv/linux/arm/alphasort64.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/alphasort64.c>

73
sysdeps/unix/sysv/linux/arm/bits/armsigctx.h
View File

@ -1,73 +0,0 @@
/* Definition of `struct sigcontext' for Linux/ARM
Copyright (C) 1996, 1997, 1998, 1999, 2000 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. */
/* The format of struct sigcontext changed between 2.0 and 2.1 kernels.
Fortunately 2.0 puts a magic number in the first word and this is not
a legal value for `trap_no', so we can tell them apart. */
/* Early 2.2 and 2.3 kernels do not have the `fault_address' member in
the sigcontext structure. Unfortunately there is no reliable way
to test for its presence and this word will contain garbage for too-old
kernels. Versions 2.2.14 and 2.3.35 (plus later versions) are known to
include this element. */
#ifndef __ARMSIGCTX_H
#define __ARMSIGCTX_H 1
#include <asm/ptrace.h>
union k_sigcontext
{
struct
{
unsigned long int trap_no;
unsigned long int error_code;
unsigned long int oldmask;
unsigned long int arm_r0;
unsigned long int arm_r1;
unsigned long int arm_r2;
unsigned long int arm_r3;
unsigned long int arm_r4;
unsigned long int arm_r5;
unsigned long int arm_r6;
unsigned long int arm_r7;
unsigned long int arm_r8;
unsigned long int arm_r9;
unsigned long int arm_r10;
unsigned long int arm_fp;
unsigned long int arm_ip;
unsigned long int arm_sp;
unsigned long int arm_lr;
unsigned long int arm_pc;
unsigned long int arm_cpsr;
unsigned long fault_address;
} v21;
struct
{
unsigned long int magic;
struct pt_regs reg;
unsigned long int trap_no;
unsigned long int error_code;
unsigned long int oldmask;
} v20;
};
#define SIGCONTEXT_2_0_MAGIC 0x4B534154
#endif /* bits/armsigctx.h */

189
sysdeps/unix/sysv/linux/arm/bits/fcntl.h
View File

@ -1,189 +0,0 @@
/* O_*, F_*, FD_* bit values for Linux.
Copyright (C) 1995-1998, 2000, 2004 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 _FCNTL_H
# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
#endif
#include <sys/types.h>
/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
located on an ext2 file system */
#define O_ACCMODE 0003
#define O_RDONLY 00
#define O_WRONLY 01
#define O_RDWR 02
#define O_CREAT 0100 /* not fcntl */
#define O_EXCL 0200 /* not fcntl */
#define O_NOCTTY 0400 /* not fcntl */
#define O_TRUNC 01000 /* not fcntl */
#define O_APPEND 02000
#define O_NONBLOCK 04000
#define O_NDELAY O_NONBLOCK
#define O_SYNC 010000
#define O_FSYNC O_SYNC
#define O_ASYNC 020000
#ifdef __USE_GNU
# define O_DIRECTORY 040000 /* Must be a directory. */
# define O_NOFOLLOW 0100000 /* Do not follow links. */
# define O_DIRECT 0200000 /* Direct disk access. */
# define O_NOATIME 01000000 /* Do not set atime. */
#endif
#ifdef __USE_LARGEFILE64
# define O_LARGEFILE 0400000
#endif
/* For now Linux has synchronisity options for data and read operations.
We define the symbols here but let them do the same as O_SYNC since
this is a superset. */
#if defined __USE_POSIX199309 || defined __USE_UNIX98
# define O_DSYNC O_SYNC /* Synchronize data. */
# define O_RSYNC O_SYNC /* Synchronize read operations. */
#endif
/* Values for the second argument to `fcntl'. */
#define F_DUPFD 0 /* Duplicate file descriptor. */
#define F_GETFD 1 /* Get file descriptor flags. */
#define F_SETFD 2 /* Set file descriptor flags. */
#define F_GETFL 3 /* Get file status flags. */
#define F_SETFL 4 /* Set file status flags. */
#ifndef __USE_FILE_OFFSET64
# define F_GETLK 5 /* Get record locking info. */
# define F_SETLK 6 /* Set record locking info (non-blocking). */
# define F_SETLKW 7 /* Set record locking info (blocking). */
#else
# define F_GETLK F_GETLK64 /* Get record locking info. */
# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/
# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */
#endif
#define F_GETLK64 12 /* Get record locking info. */
#define F_SETLK64 13 /* Set record locking info (non-blocking). */
#define F_SETLKW64 14 /* Set record locking info (blocking). */
#if defined __USE_BSD || defined __USE_UNIX98
# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */
# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */
#endif
#ifdef __USE_GNU
# define F_SETSIG 10 /* Set number of signal to be sent. */
# define F_GETSIG 11 /* Get number of signal to be sent. */
#endif
#ifdef __USE_GNU
# define F_SETLEASE 1024 /* Set a lease. */
# define F_GETLEASE 1025 /* Enquire what lease is active. */
# define F_NOTIFY 1026 /* Request notfications on a directory. */
#endif
/* For F_[GET|SET]FL. */
#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */
#define F_RDLCK 0 /* Read lock. */
#define F_WRLCK 1 /* Write lock. */
#define F_UNLCK 2 /* Remove lock. */
/* for old implementation of bsd flock () */
#define F_EXLCK 4 /* or 3 */
#define F_SHLCK 8 /* or 4 */
#ifdef __USE_BSD
/* Operations for bsd flock(), also used by the kernel implementation */
# define LOCK_SH 1 /* shared lock */
# define LOCK_EX 2 /* exclusive lock */
# define LOCK_NB 4 /* or'd with one of the above to prevent
blocking */
# define LOCK_UN 8 /* remove lock */
#endif
#ifdef __USE_GNU
# define LOCK_MAND 32 /* This is a mandatory flock: */
# define LOCK_READ 64 /* ... which allows concurrent read operations. */
# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */
# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */
#endif
#ifdef __USE_GNU
/* Types of directory notifications that may be requested with F_NOTIFY. */
# define DN_ACCESS 0x00000001 /* File accessed. */
# define DN_MODIFY 0x00000002 /* File modified. */
# define DN_CREATE 0x00000004 /* File created. */
# define DN_DELETE 0x00000008 /* File removed. */
# define DN_RENAME 0x00000010 /* File renamed. */
# define DN_ATTRIB 0x00000020 /* File changed attibutes. */
# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
#endif
struct flock
{
short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
#ifndef __USE_FILE_OFFSET64
__off_t l_start; /* Offset where the lock begins. */
__off_t l_len; /* Size of the locked area; zero means until EOF. */
#else
__off64_t l_start; /* Offset where the lock begins. */
__off64_t l_len; /* Size of the locked area; zero means until EOF. */
#endif
__pid_t l_pid; /* Process holding the lock. */
};
#ifdef __USE_LARGEFILE64
struct flock64
{
short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
__off64_t l_start; /* Offset where the lock begins. */
__off64_t l_len; /* Size of the locked area; zero means until EOF. */
__pid_t l_pid; /* Process holding the lock. */
};
#endif
/* Define some more compatibility macros to be backward compatible with
BSD systems which did not managed to hide these kernel macros. */
#ifdef __USE_BSD
# define FAPPEND O_APPEND
# define FFSYNC O_FSYNC
# define FASYNC O_ASYNC
# define FNONBLOCK O_NONBLOCK
# define FNDELAY O_NDELAY
#endif /* Use BSD. */
/* Advise to `posix_fadvise'. */
#ifdef __USE_XOPEN2K
# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
#endif
__BEGIN_DECLS
/* Provide kernel hint to read ahead. */
extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
__THROW;
__END_DECLS

99
sysdeps/unix/sysv/linux/arm/bits/mman.h
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@ -1,99 +0,0 @@
/* Definitions for POSIX memory map interface. Linux/ARM version.
Copyright (C) 1997, 2000, 2003 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 _SYS_MMAN_H
# error "Never include this file directly. Use <sys/mman.h> instead"
#endif
/* The following definitions basically come from the kernel headers.
But the kernel header is not namespace clean. */
/* Protections are chosen from these bits, OR'd together. The
implementation does not necessarily support PROT_EXEC or PROT_WRITE
without PROT_READ. The only guarantees are that no writing will be
allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
#define PROT_READ 0x1 /* Page can be read. */
#define PROT_WRITE 0x2 /* Page can be written. */
#define PROT_EXEC 0x4 /* Page can be executed. */
#define PROT_NONE 0x0 /* Page can not be accessed. */
#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
growsdown vma (mprotect only). */
#define PROT_GROWSUP 0x02000000 /* Extend change to start of
growsup vma (mprotect only). */
/* Sharing types (must choose one and only one of these). */
#define MAP_SHARED 0x01 /* Share changes. */
#define MAP_PRIVATE 0x02 /* Changes are private. */
#ifdef __USE_MISC
# define MAP_TYPE 0x0f /* Mask for type of mapping. */
#endif
/* Other flags. */
#define MAP_FIXED 0x10 /* Interpret addr exactly. */
#ifdef __USE_MISC
# define MAP_FILE 0
# define MAP_ANONYMOUS 0x20 /* Don't use a file. */
# define MAP_ANON MAP_ANONYMOUS
#endif
/* These are Linux-specific. */
#ifdef __USE_MISC
# define MAP_GROWSDOWN 0x00100 /* Stack-like segment. */
# define MAP_DENYWRITE 0x00800 /* ETXTBSY */
# define MAP_EXECUTABLE 0x01000 /* Mark it as an executable. */
# define MAP_LOCKED 0x02000 /* Lock the mapping. */
# define MAP_NORESERVE 0x04000 /* Don't check for reservations. */
# define MAP_POPULATE 0x08000 /* Populate (prefault) pagetables. */
# define MAP_NONBLOCK 0x10000 /* Do not block on IO. */
#endif
/* Flags to `msync'. */
#define MS_ASYNC 1 /* Sync memory asynchronously. */
#define MS_SYNC 4 /* Synchronous memory sync. */
#define MS_INVALIDATE 2 /* Invalidate the caches. */
/* Flags for `mlockall'. */
#define MCL_CURRENT 1 /* Lock all currently mapped pages. */
#define MCL_FUTURE 2 /* Lock all additions to address
space. */
/* Flags for `mremap'. */
#ifdef __USE_GNU
# define MREMAP_MAYMOVE 1
#endif
/* Advice to `madvise'. */
#ifdef __USE_BSD
# define MADV_NORMAL 0 /* No further special treatment. */
# define MADV_RANDOM 1 /* Expect random page references. */
# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
# define MADV_WILLNEED 3 /* Will need these pages. */
# define MADV_DONTNEED 4 /* Don't need these pages. */
#endif
/* The POSIX people had to invent similar names for the same things. */
#ifdef __USE_XOPEN2K
# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
#endif

49
sysdeps/unix/sysv/linux/arm/brk.c
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@ -1,49 +0,0 @@
/* brk system call for Linux/ARM.
Copyright (C) 1995, 1996 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 <errno.h>
#include <unistd.h>
#include <sysdep.h>
/* This must be initialized data because commons can't have aliases. */
void *__curbrk = 0;
int
__brk (void *addr)
{
void *newbrk;
asm ("mov a1, %1\n" /* save the argment in r0 */
"swi %2\n" /* do the system call */
"mov %0, a1;" /* keep the return value */
: "=r"(newbrk)
: "r"(addr), "i" (SYS_ify (brk))
: "a1");
__curbrk = newbrk;
if (newbrk < addr)
{
__set_errno (ENOMEM);
return -1;
}
return 0;
}
weak_alias (__brk, brk)

1
sysdeps/unix/sysv/linux/arm/chown.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/m68k/chown.c>

60
sysdeps/unix/sysv/linux/arm/clone.S
View File

@ -1,60 +0,0 @@
/* Copyright (C) 1996, 1997, 1998, 1999, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Pat Beirne <patb@corelcomputer.com>
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. */
/* clone() is even more special than fork() as it mucks with stacks
and invokes a function in the right context after its all over. */
#include <sysdep.h>
#define _ERRNO_H 1
#include <bits/errno.h>
/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
.text
ENTRY(__clone)
@ sanity check args
cmp r0, #0
cmpne r1, #0
moveq r0, #-EINVAL
beq PLTJMP(syscall_error)
@ insert the args onto the new stack
str r3, [r1, #-4]!
str r0, [r1, #-4]!
@ do the system call
@ get flags
mov r0, r2
@ new sp is already in r1
swi SYS_ify(clone)
movs a1, a1
blt PLTJMP(C_SYMBOL_NAME(__syscall_error))
RETINSTR(ne, lr)
@ pick the function arg and call address off the stack and execute
ldr r0, [sp, #4]
mov lr, pc
ldr pc, [sp]
@ and we are done, passing the return value through r0
b PLTJMP(_exit)
PSEUDO_END (__clone)
weak_alias (__clone, clone)

64
sysdeps/unix/sysv/linux/arm/dl-procinfo.c
View File

@ -1,64 +0,0 @@
/* Data for Linux/ARM version of processor capability information.
Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Philip Blundell <philb@gnu.org>, 2001.
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. */
/* This information must be kept in sync with the _DL_HWCAP_COUNT and
_DL_PLATFORM_COUNT definitions in procinfo.h.
If anything should be added here check whether the size of each string
is still ok with the given array size.
All the #ifdefs in the definitions ar equite irritating but
necessary if we want to avoid duplicating the information. There
are three different modes:
- PROCINFO_DECL is defined. This means we are only interested in
declarations.
- PROCINFO_DECL is not defined:
+ if SHARED is defined the file is included in an array
initializer. The .element = { ... } syntax is needed.
+ if SHARED is not defined a normal array initialization is
needed.
*/
#ifndef PROCINFO_CLASS
#define PROCINFO_CLASS
#endif
#if !defined PROCINFO_DECL && defined SHARED
._dl_arm_cap_flags
#else
PROCINFO_CLASS const char _dl_arm_cap_flags[8][10]
#endif
#ifndef PROCINFO_DECL
= {
"swp", "half", "thumb", "26bit", "fast-mult", "fpa", "vfp", "edsp",
}
#endif
#if !defined SHARED || defined PROCINFO_DECL
;
#else
,
#endif
#undef PROCINFO_DECL
#undef PROCINFO_CLASS

86
sysdeps/unix/sysv/linux/arm/dl-procinfo.h
View File

@ -1,86 +0,0 @@
/* Linux/ARM version of processor capability information handling macros.
Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Philip Blundell <philb@gnu.org>, 2001.
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 _DL_PROCINFO_H
#define _DL_PROCINFO_H 1
#include <ldsodefs.h>
#define _DL_HWCAP_COUNT 8
/* The kernel provides platform data but it is not interesting. */
#define _DL_HWCAP_PLATFORM 0
static inline int
__attribute__ ((unused))
_dl_procinfo (int word)
{
int i;
_dl_printf ("AT_HWCAP: ");
for (i = 0; i < _DL_HWCAP_COUNT; ++i)
if (word & (1 << i))
_dl_printf (" %s", GLRO(dl_arm_cap_flags)[i]);
_dl_printf ("\n");
return 0;
}
static inline const char *
__attribute__ ((unused))
_dl_hwcap_string (int idx)
{
return GLRO(dl_arm_cap_flags)[idx];
};
enum
{
HWCAP_ARM_SWP = 1 << 0,
HWCAP_ARM_HALF = 1 << 1,
HWCAP_ARM_THUMB = 1 << 2,
HWCAP_ARM_26BIT = 1 << 3,
HWCAP_ARM_FAST_MULT = 1 << 4,
HWCAP_ARM_FPA = 1 << 5,
HWCAP_ARM_VFP = 1 << 6,
HWCAP_ARM_EDSP = 1 << 7,
HWCAP_IMPORTANT = (HWCAP_ARM_HALF | HWCAP_ARM_FAST_MULT)
};
static inline int
__attribute__ ((unused))
_dl_string_hwcap (const char *str)
{
int i;
for (i = 0; i < _DL_HWCAP_COUNT; i++)
{
if (strcmp (str, GLRO(dl_arm_cap_flags)[i]) == 0)
return i;
}
return -1;
};
#define _dl_string_platform(str) (-1)
#endif /* dl-procinfo.h */

1
sysdeps/unix/sysv/linux/arm/fchown.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/fchown.c>

1
sysdeps/unix/sysv/linux/arm/fcntl.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/fcntl.c>

1
sysdeps/unix/sysv/linux/arm/fxstat.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/fxstat.c>

1
sysdeps/unix/sysv/linux/arm/getdents64.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/getdents64.c>

1
sysdeps/unix/sysv/linux/arm/getegid.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/getegid.c>

1
sysdeps/unix/sysv/linux/arm/geteuid.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/geteuid.c>

1
sysdeps/unix/sysv/linux/arm/getgid.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/getgid.c>

2
sysdeps/unix/sysv/linux/arm/getgroups.c
View File

@ -1,2 +0,0 @@
/* We also have to rewrite the kernel gid_t to the user land type. */
#include <sysdeps/unix/sysv/linux/i386/getgroups.c>

1
sysdeps/unix/sysv/linux/arm/getresgid.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/getresgid.c>

1
sysdeps/unix/sysv/linux/arm/getresuid.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/getresuid.c>

1
sysdeps/unix/sysv/linux/arm/getrlimit.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/getrlimit.c>

1
sysdeps/unix/sysv/linux/arm/getrlimit64.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/getrlimit64.c>

1
sysdeps/unix/sysv/linux/arm/getuid.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/getuid.c>

1
sysdeps/unix/sysv/linux/arm/glob64.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/glob64.c>

274
sysdeps/unix/sysv/linux/arm/ioperm.c
View File

@ -1,274 +0,0 @@
/* Copyright (C) 1998, 1999, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Phil Blundell, based on the Alpha version by
David Mosberger.
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. */
/* I/O port access on the ARM is something of a fiction. What we do is to
map an appropriate area of /dev/mem into user space so that a program
can blast away at the hardware in such a way as to generate I/O cycles
on the bus. To insulate user code from dependencies on particular
hardware we don't allow calls to inb() and friends to be inlined, but
force them to come through code in here every time. Performance-critical
registers tend to be memory mapped these days so this should be no big
problem. */
/* Once upon a time this file used mprotect to enable and disable
access to particular areas of I/O space. Unfortunately the
mprotect syscall also has the side effect of enabling caching for
the area affected (this is a kernel limitation). So we now just
enable all the ports all of the time. */
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <asm/page.h>
#include <sys/sysctl.h>
#define PATH_ARM_SYSTYPE "/etc/arm_systype"
#define PATH_CPUINFO "/proc/cpuinfo"
#define MAX_PORT 0x10000
static struct {
unsigned long int base;
unsigned long int io_base;
unsigned int shift;
unsigned int initdone; /* since all the above could be 0 */
} io;
#define IO_BASE_FOOTBRIDGE 0x7c000000
#define IO_SHIFT_FOOTBRIDGE 0
static struct platform {
const char *name;
unsigned long int io_base;
unsigned int shift;
} platform[] = {
/* All currently supported platforms are in fact the same. :-) */
{"Chalice-CATS", IO_BASE_FOOTBRIDGE, IO_SHIFT_FOOTBRIDGE},
{"DEC-EBSA285", IO_BASE_FOOTBRIDGE, IO_SHIFT_FOOTBRIDGE},
{"Corel-NetWinder", IO_BASE_FOOTBRIDGE, IO_SHIFT_FOOTBRIDGE},
{"Rebel-NetWinder", IO_BASE_FOOTBRIDGE, IO_SHIFT_FOOTBRIDGE},
};
#define IO_ADDR(port) (io.base + ((port) << io.shift))
/*
* Initialize I/O system. There are several ways to get the information
* we need. Each is tried in turn until one succeeds.
*
* 1. Sysctl (CTL_BUS, BUS_ISA, ISA_*). This is the preferred method
* but not all kernels support it.
*
* 2. Read the value (not the contents) of symlink PATH_ARM_SYSTYPE.
* - If it matches one of the entries in the table above, use the
* corresponding values.
* - If it begins with a number, assume this is a previously
* unsupported system and the values encode, in order,
* "<io_base>,<port_shift>".
*
* 3. Lookup the "system type" field in /proc/cpuinfo. Again, if it
* matches an entry in the platform[] table, use the corresponding
* values.
*/
static int
init_iosys (void)
{
char systype[256];
int i, n;
static int iobase_name[] = { CTL_BUS, BUS_ISA, BUS_ISA_PORT_BASE };
static int ioshift_name[] = { CTL_BUS, BUS_ISA, BUS_ISA_PORT_SHIFT };
size_t len = sizeof(io.base);
if (! sysctl (iobase_name, 3, &io.io_base, &len, NULL, 0)
&& ! sysctl (ioshift_name, 3, &io.shift, &len, NULL, 0))
{
io.initdone = 1;
return 0;
}
n = readlink (PATH_ARM_SYSTYPE, systype, sizeof (systype) - 1);
if (n > 0)
{
systype[n] = '\0';
if (isdigit (systype[0]))
{
if (sscanf (systype, "%li,%i", &io.io_base, &io.shift) == 2)
{
io.initdone = 1;
return 0;
}
/* else we're likely going to fail with the system match below */
}
}
else
{
FILE * fp;
fp = fopen (PATH_CPUINFO, "r");
if (! fp)
return -1;
while ((n = fscanf (fp, "Hardware\t: %256[^\n]\n", systype))
!= EOF)
{
if (n == 1)
break;
else
fgets (systype, 256, fp);
}
fclose (fp);
if (n == EOF)
{
/* this can happen if the format of /proc/cpuinfo changes... */
fprintf (stderr,
"ioperm: Unable to determine system type.\n"
"\t(May need " PATH_ARM_SYSTYPE " symlink?)\n");
__set_errno (ENODEV);
return -1;
}
}
/* translate systype name into i/o system: */
for (i = 0; i < sizeof (platform) / sizeof (platform[0]); ++i)
{
if (strcmp (platform[i].name, systype) == 0)
{
io.shift = platform[i].shift;
io.io_base = platform[i].io_base;
io.initdone = 1;
return 0;
}
}
/* systype is not a known platform name... */
__set_errno (ENODEV);
return -1;
}
int
_ioperm (unsigned long int from, unsigned long int num, int turn_on)
{
if (! io.initdone && init_iosys () < 0)
return -1;
/* this test isn't as silly as it may look like; consider overflows! */
if (from >= MAX_PORT || from + num > MAX_PORT)
{
__set_errno (EINVAL);
return -1;
}
if (turn_on)
{
if (! io.base)
{
int fd;
fd = open ("/dev/mem", O_RDWR);
if (fd < 0)
return -1;
io.base =
(unsigned long int) __mmap (0, MAX_PORT << io.shift,
PROT_READ | PROT_WRITE,
MAP_SHARED, fd, io.io_base);
close (fd);
if ((long) io.base == -1)
return -1;
}
}
return 0;
}
int
_iopl (unsigned int level)
{
if (level > 3)
{
__set_errno (EINVAL);
return -1;
}
if (level)
{
return _ioperm (0, MAX_PORT, 1);
}
return 0;
}
void
_outb (unsigned char b, unsigned long int port)
{
*((volatile unsigned char *)(IO_ADDR (port))) = b;
}
void
_outw (unsigned short b, unsigned long int port)
{
*((volatile unsigned short *)(IO_ADDR (port))) = b;
}
void
_outl (unsigned int b, unsigned long int port)
{
*((volatile unsigned long *)(IO_ADDR (port))) = b;
}
unsigned int
_inb (unsigned long int port)
{
return *((volatile unsigned char *)(IO_ADDR (port)));
}
unsigned int
_inw (unsigned long int port)
{
return *((volatile unsigned short *)(IO_ADDR (port)));
}
unsigned int
_inl (unsigned long int port)
{
return *((volatile unsigned long *)(IO_ADDR (port)));
}
weak_alias (_ioperm, ioperm);
weak_alias (_iopl, iopl);
weak_alias (_inb, inb);
weak_alias (_inw, inw);
weak_alias (_inl, inl);
weak_alias (_outb, outb);
weak_alias (_outw, outw);
weak_alias (_outl, outl);

1
sysdeps/unix/sysv/linux/arm/lchown.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/lchown.c>

1
sysdeps/unix/sysv/linux/arm/lockf64.c
View File

@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/lockf64.c>

2
sysdeps/unix/sysv/linux/arm/lxstat.c
View File

@ -1,2 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/lxstat.c>

92
sysdeps/unix/sysv/linux/arm/mmap.S
View File

@ -1,92 +0,0 @@
/* Copyright (C) 1998, 2000, 2003 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 <kernel-features.h>
#define EINVAL 22
.text
ENTRY (__mmap)
# ifdef __ASSUME_MMAP2_SYSCALL
/* This code is actually a couple of cycles slower than the
sys_mmap version below, so it might seem like a loss. But the
code path inside the kernel is sufficiently much shorter to
make it a net gain to use mmap2 when it's known to be
available. */
/* shuffle args */
str r5, [sp, #-4]!
ldr r5, [sp, #8]
str r4, [sp, #-4]!
ldr r4, [sp, #8]
/* convert offset to pages */
movs ip, r5, lsl #20
bne .Linval
mov r5, r5, lsr #12
/* do the syscall */
swi SYS_ify (mmap2)
/* restore registers */
2:
ldr r4, [sp], #4
ldr r5, [sp], #4
cmn r0, $4096
RETINSTR(cc, lr)
b PLTJMP(syscall_error)
.Linval:
mov r0, #-EINVAL
b 2b
# else
/* Because we can only get five args through the syscall interface, and
mmap() takes six, we need to build a parameter block and pass its
address instead. The 386 port does a similar trick. */
/* This code previously moved sp into ip and stored the args using
stmdb ip!, {a1-a4}. It did not modify sp, so the stack never had
to be restored after the syscall completed. It saved an
instruction and meant no stack cleanup work was required.
This will not work in the case of a mmap call being interrupted
by a signal. If the signal handler uses any stack the arguments
to mmap will be trashed. The results of a restart of mmap are
then unpredictable. */
/* store args on the stack */
stmdb sp!, {a1-a4}
/* do the syscall */
mov a1, sp
swi SYS_ify (mmap)
/* pop args off the stack. */
add sp, sp, #16
cmn r0, $4096
RETINSTR(cc, lr)
b PLTJMP(syscall_error);
#endif
PSEUDO_END (__mmap)
weak_alias (__mmap, mmap)

80
sysdeps/unix/sysv/linux/arm/mmap64.S
View File

@ -1,80 +0,0 @@
/* Copyright (C) 2000, 2003 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>
#define EINVAL 22
#define ENOSYS 38
#include "kernel-features.h"
/* The mmap2 system call takes six arguments, all in registers. */
.text
ENTRY (__mmap64)
#ifdef __NR_mmap2
ldr ip, [sp, $4] @ offset low part
str r5, [sp, #-4]!
ldr r5, [sp, $12] @ offset high part
str r4, [sp, #-4]!
movs r4, ip, lsl $20 @ check that offset is page-aligned
mov ip, ip, lsr $12
moveqs r4, r5, lsr $12 @ check for overflow
bne .Linval
ldr r4, [sp, $8] @ load fd
orr r5, ip, r5, lsl $20 @ compose page offset
mov ip, r0
swi SYS_ify (mmap2)
cmn r0, $4096
# ifdef __ASSUME_MMAP2_SYSCALL
ldr r4, [sp], #4
ldr r5, [sp], #4
RETINSTR(cc, lr)
b PLTJMP(syscall_error)
# else
ldrcc r4, [sp], #4
ldrcc r5, [sp], #4
RETINSTR(cc, lr)
cmn r0, $ENOSYS
bne .Lerror
/* The current kernel does not support mmap2. Fall back to plain
mmap if the offset is small enough. */
ldr r5, [sp, $16]
mov r0, ip @ first arg was clobbered
teq r5, $0
ldreq r4, [sp], #4
ldreq r5, [sp], #4
beq PLTJMP(__mmap)
# endif
.Linval:
mov r0, $-EINVAL
.Lerror:
ldr r4, [sp], #4
ldr r5, [sp], #4
b PLTJMP(syscall_error)
#else
/* The kernel headers do not support mmap2. Fall back to plain
mmap if the offset is small enough. */
ldr ip, [sp, $8]
teq ip, $0
beq PLTJMP(__mmap)
mov r0, $-EINVAL
b PLTJMP(syscall_error)
#endif
PSEUDO_END (__mmap64)
weak_alias (__mmap64, mmap64)

1
sysdeps/unix/sysv/linux/arm/msgctl.c
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#include <sysdeps/unix/sysv/linux/i386/msgctl.c>

1
sysdeps/unix/sysv/linux/arm/oldgetrlimit64.c
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#include <sysdeps/unix/sysv/linux/i386/oldgetrlimit64.c>

37
sysdeps/unix/sysv/linux/arm/profil-counter.h
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@ -1,37 +0,0 @@
/* Low-level statistical profiling support function. Linux/ARM version.
Copyright (C) 1996, 1997, 1998, 2002 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 <signal.h>
#include <bits/armsigctx.h>
void
profil_counter (int signo, int _a2, int _a3, int _a4, union k_sigcontext sc)
{
void *pc;
if (sc.v20.magic == SIGCONTEXT_2_0_MAGIC)
pc = (void *) sc.v20.reg.ARM_pc;
else
pc = (void *) sc.v21.arm_pc;
profil_count (pc);
/* This is a hack to prevent the compiler from implementing the
above function call as a sibcall. The sibcall would overwrite
the signal context. */
asm volatile ("");
}

1
sysdeps/unix/sysv/linux/arm/readdir64.c
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#include <sysdeps/unix/sysv/linux/i386/readdir64.c>

1
sysdeps/unix/sysv/linux/arm/readdir64_r.c
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#include <sysdeps/unix/sysv/linux/i386/readdir64_r.c>

166
sysdeps/unix/sysv/linux/arm/register-dump.h
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/* Dump registers.
Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Philip Blundell <pb@nexus.co.uk>, 1998.
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 <sys/uio.h>
#include <stdio-common/_itoa.h>
#include <bits/armsigctx.h>
/* We will print the register dump in this format:
R0: XXXXXXXX R1: XXXXXXXX R2: XXXXXXXX R3: XXXXXXXX
R4: XXXXXXXX R5: XXXXXXXX R6: XXXXXXXX R7: XXXXXXXX
R8: XXXXXXXX R9: XXXXXXXX SL: XXXXXXXX FP: XXXXXXXX
IP: XXXXXXXX SP: XXXXXXXX LR: XXXXXXXX PC: XXXXXXXX
CPSR: XXXXXXXX
Trap: XXXXXXXX Error: XXXXXXXX OldMask: XXXXXXXX
Addr: XXXXXXXX
*/
static void
hexvalue (unsigned long int value, char *buf, size_t len)
{
char *cp = _itoa_word (value, buf + len, 16, 0);
while (cp > buf)
*--cp = '0';
}
static void
register_dump (int fd, union k_sigcontext *ctx)
{
char regs[21][8];
struct iovec iov[97];
size_t nr = 0;
#define ADD_STRING(str) \
iov[nr].iov_base = (char *) str; \
iov[nr].iov_len = strlen (str); \
++nr
#define ADD_MEM(str, len) \
iov[nr].iov_base = str; \
iov[nr].iov_len = len; \
++nr
/* Generate strings of register contents. */
if (ctx->v20.magic == SIGCONTEXT_2_0_MAGIC)
{
hexvalue (ctx->v20.reg.ARM_r0, regs[0], 8);
hexvalue (ctx->v20.reg.ARM_r1, regs[1], 8);
hexvalue (ctx->v20.reg.ARM_r2, regs[2], 8);
hexvalue (ctx->v20.reg.ARM_r3, regs[3], 8);
hexvalue (ctx->v20.reg.ARM_r4, regs[4], 8);
hexvalue (ctx->v20.reg.ARM_r5, regs[5], 8);
hexvalue (ctx->v20.reg.ARM_r6, regs[6], 8);
hexvalue (ctx->v20.reg.ARM_r7, regs[7], 8);
hexvalue (ctx->v20.reg.ARM_r8, regs[8], 8);
hexvalue (ctx->v20.reg.ARM_r9, regs[9], 8);
hexvalue (ctx->v20.reg.ARM_r10, regs[10], 8);
hexvalue (ctx->v20.reg.ARM_fp, regs[11], 8);
hexvalue (ctx->v20.reg.ARM_ip, regs[12], 8);
hexvalue (ctx->v20.reg.ARM_sp, regs[13], 8);
hexvalue (ctx->v20.reg.ARM_lr, regs[14], 8);
hexvalue (ctx->v20.reg.ARM_pc, regs[15], 8);
hexvalue (ctx->v20.reg.ARM_cpsr, regs[16], 8);
hexvalue (ctx->v20.trap_no, regs[17], 8);
hexvalue (ctx->v20.error_code, regs[18], 8);
hexvalue (ctx->v20.oldmask, regs[19], 8);
}
else
{
hexvalue (ctx->v21.arm_r0, regs[0], 8);
hexvalue (ctx->v21.arm_r1, regs[1], 8);
hexvalue (ctx->v21.arm_r2, regs[2], 8);
hexvalue (ctx->v21.arm_r3, regs[3], 8);
hexvalue (ctx->v21.arm_r4, regs[4], 8);
hexvalue (ctx->v21.arm_r5, regs[5], 8);
hexvalue (ctx->v21.arm_r6, regs[6], 8);
hexvalue (ctx->v21.arm_r7, regs[7], 8);
hexvalue (ctx->v21.arm_r8, regs[8], 8);
hexvalue (ctx->v21.arm_r9, regs[9], 8);
hexvalue (ctx->v21.arm_r10, regs[10], 8);
hexvalue (ctx->v21.arm_fp, regs[11], 8);
hexvalue (ctx->v21.arm_ip, regs[12], 8);
hexvalue (ctx->v21.arm_sp, regs[13], 8);
hexvalue (ctx->v21.arm_lr, regs[14], 8);
hexvalue (ctx->v21.arm_pc, regs[15], 8);
hexvalue (ctx->v21.arm_cpsr, regs[16], 8);
hexvalue (ctx->v21.trap_no, regs[17], 8);
hexvalue (ctx->v21.error_code, regs[18], 8);
hexvalue (ctx->v21.oldmask, regs[19], 8);
hexvalue (ctx->v21.fault_address, regs[20], 8);
}
/* Generate the output. */
ADD_STRING ("Register dump:\n\n R0: ");
ADD_MEM (regs[0], 8);
ADD_STRING (" R1: ");
ADD_MEM (regs[1], 8);
ADD_STRING (" R2: ");
ADD_MEM (regs[2], 8);
ADD_STRING (" R3: ");
ADD_MEM (regs[3], 8);
ADD_STRING ("\n R4: ");
ADD_MEM (regs[4], 8);
ADD_STRING (" R5: ");
ADD_MEM (regs[5], 8);
ADD_STRING (" R6: ");
ADD_MEM (regs[6], 8);
ADD_STRING (" R7: ");
ADD_MEM (regs[7], 8);
ADD_STRING ("\n R8: ");
ADD_MEM (regs[8], 8);
ADD_STRING (" R9: ");
ADD_MEM (regs[9], 8);
ADD_STRING (" SL: ");
ADD_MEM (regs[10], 8);
ADD_STRING (" FP: ");
ADD_MEM (regs[11], 8);
ADD_STRING ("\n IP: ");
ADD_MEM (regs[12], 8);
ADD_STRING (" SP: ");
ADD_MEM (regs[13], 8);
ADD_STRING (" LR: ");
ADD_MEM (regs[14], 8);
ADD_STRING (" PC: ");
ADD_MEM (regs[15], 8);
ADD_STRING ("\n\n CPSR: ");
ADD_MEM (regs[16], 8);
ADD_STRING ("\n\n Trap: ");
ADD_MEM (regs[17], 8);
ADD_STRING (" Error: ");
ADD_MEM (regs[18], 8);
ADD_STRING (" OldMask: ");
ADD_MEM (regs[19], 8);
if (ctx->v20.magic != SIGCONTEXT_2_0_MAGIC)
{
ADD_STRING ("\n Addr: ");
ADD_MEM (regs[20], 8);
}
ADD_STRING ("\n");
/* Write the stuff out. */
writev (fd, iov, nr);
}
#define REGISTER_DUMP register_dump (fd, &ctx)

1
sysdeps/unix/sysv/linux/arm/scandir64.c
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#include <sysdeps/unix/sysv/linux/i386/scandir64.c>

1
sysdeps/unix/sysv/linux/arm/semctl.c
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@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/semctl.c>

1
sysdeps/unix/sysv/linux/arm/setegid.c
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@ -1 +0,0 @@
#include <sysdeps/unix/sysv/linux/i386/setegid.c>

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