diff options
Diffstat (limited to 'sysdeps/unix/arm')
| -rw-r--r-- | sysdeps/unix/arm/brk.S | 43 | ||||
| -rw-r--r-- | sysdeps/unix/arm/sysdep.S | 49 |
2 files changed, 92 insertions, 0 deletions
diff --git a/sysdeps/unix/arm/brk.S b/sysdeps/unix/arm/brk.S new file mode 100644 index 0000000000..a801674283 --- /dev/null +++ b/sysdeps/unix/arm/brk.S @@ -0,0 +1,43 @@ +/* Copyright (C) 1991, 1992, 1993, 1995 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, 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) + ldr r1, _cb_addr + str r0, [r1] + mov r0, $0 + RETINSTR(mov, pc, r14) +_cb_addr: .long C_SYMBOL_NAME(__curbrk) + + +weak_alias (__brk, brk) diff --git a/sysdeps/unix/arm/sysdep.S b/sysdeps/unix/arm/sysdep.S new file mode 100644 index 0000000000..5d3ad551c6 --- /dev/null +++ b/sysdeps/unix/arm/sysdep.S @@ -0,0 +1,49 @@ +/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library 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 <sysdep.h> +#define _ERRNO_H +#include <errnos.h> + +.globl C_SYMBOL_NAME(errno) +.globl syscall_error + +_errno_loc: .long C_SYMBOL_NAME(errno) + +#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 +#ifndef PIC + ldr r1, _errno_loc + str r0, [r1] +#endif + mvn r0, $0 + RETINSTR(mov, pc, r14) + +#undef __syscall_error +END (__syscall_error) |