84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/* Copyright (C) 1996, 1997 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 LOSE asm volatile ("1: b 1b")
|
|
|
|
#define START_MACHDEP asm ("\
|
|
.text\n\
|
|
.globl _start\n\
|
|
.ent _start\n\
|
|
_start:\n\
|
|
# Put initial SP in a0.\n\
|
|
move $4, $29\n\
|
|
# Jump to _start0; don't return.\n\
|
|
j _start0\n\
|
|
.end _start\n\
|
|
");
|
|
#define START_ARGS int *entry_sp
|
|
#define SNARF_ARGS(argc, argv, envp) \
|
|
do \
|
|
{ \
|
|
register char **p; \
|
|
\
|
|
argc = *entry_sp; \
|
|
argv = (char **) (entry_sp + 1); \
|
|
p = argv; \
|
|
while (*p++ != NULL) \
|
|
; \
|
|
if (p >= (char **) argv[0]) \
|
|
--p; \
|
|
envp = p; \
|
|
} while (0)
|
|
|
|
#define CALL_WITH_SP(fn, sp) \
|
|
({ register int __fn = fn, __sp = (int) sp; \
|
|
asm volatile ("move $sp,%0; j %1" : : "r" (__sp), "r" (__fn));})
|
|
|
|
#define RETURN_TO(sp, pc, retval) \
|
|
asm volatile ("move $29, %0; move $2, %2; move $25, %1; jr $25" \
|
|
: : "r" (sp), "r" (pc), "r" (retval))
|
|
|
|
#define STACK_GROWTH_DOWN
|
|
|
|
#include <syscall.h>
|
|
|
|
#if defined (__ASSEMBLER__)
|
|
|
|
#define ALIGN 2
|
|
|
|
#define MOVE(x,y) move y , x
|
|
|
|
#define SYSCALL(name, args) \
|
|
.globl syscall_error; \
|
|
kernel_trap(name,SYS_##name,args); \
|
|
beq $1,$0,1f; \
|
|
j syscall_error; \
|
|
1:
|
|
|
|
#define SYSCALL__(name, args) \
|
|
.globl syscall_error; \
|
|
kernel_trap(__##name,SYS_##name,args); \
|
|
beq $1,$0,1f; \
|
|
j syscall_error; \
|
|
1:
|
|
|
|
#define ret j ra; nop
|
|
#endif
|
|
|
|
#include <sysdeps/mach/sysdep.h>
|