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84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#define LOSE asm volatile ("1: b 1b")
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#define START_MACHDEP asm ("\
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.text\n\
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.globl _start\n\
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.ent _start\n\
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_start:\n\
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# Put initial SP in a0.\n\
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move $4, $29\n\
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# Jump to _start0; don't return.\n\
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j _start0\n\
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.end _start\n\
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");
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#define START_ARGS int *entry_sp
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#define SNARF_ARGS(argc, argv, envp) \
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do \
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{ \
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register char **p; \
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\
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argc = *entry_sp; \
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argv = (char **) (entry_sp + 1); \
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p = argv; \
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while (*p++ != NULL) \
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; \
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if (p >= (char **) argv[0]) \
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--p; \
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envp = p; \
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} while (0)
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#define CALL_WITH_SP(fn, sp) \
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({ register int __fn = fn, __sp = (int) sp; \
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asm volatile ("move $sp,%0; j %1" : : "r" (__sp), "r" (__fn));})
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#define RETURN_TO(sp, pc, retval) \
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asm volatile ("move $29, %0; move $2, %2; move $25, %1; jr $25" \
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: : "r" (sp), "r" (pc), "r" (retval))
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#define STACK_GROWTH_DOWN
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#include <syscall.h>
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#if defined (__ASSEMBLER__)
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#define ALIGN 2
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#define MOVE(x,y) move y , x
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#define SYSCALL(name, args) \
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.globl syscall_error; \
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kernel_trap(name,SYS_##name,args); \
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beq $1,$0,1f; \
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j syscall_error; \
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1:
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#define SYSCALL__(name, args) \
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.globl syscall_error; \
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kernel_trap(__##name,SYS_##name,args); \
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beq $1,$0,1f; \
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j syscall_error; \
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1:
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#define ret j ra; nop
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#endif
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#include_next <sysdep.h>
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