905277a73a
* lib/freebsd/x86-mes-gcc/mini.c: Split into... * lib/freebsd/x86-mes-gcc/_exit.c: ...this, and... * lib/freebsd/x86-mes-gcc/_write.c: ...this. * lib/freebsd/x86-mes-mescc/mini.c: Slpit into... * lib/freebsd/x86-mes-mescc/_exit.c: ...this, and... * lib/freebsd/x86-mes-mescc/_write.c: ...this. * lib/gnu/x86-mes-gcc/mini.c: Split into... * lib/gnu/x86-mes-gcc/_exit.c: ...this, and... * lib/gnu/x86-mes-gcc/_write.c: ...this. * lib/linux/arm-mes-gcc/mini.c: Split into... * lib/linux/arm-mes-gcc/_exit.c: ...this, and... * lib/linux/arm-mes-gcc/_write.c: ...this. * lib/linux/arm-mes-mescc/mini.c: Split into... * lib/linux/arm-mes-mescc/_exit.c: ...this, and... * lib/linux/arm-mes-mescc/_write.c: ...this. * build-aux/configure-lib.sh (libc_mini_shared_SOURCES): Replace mini.c with add _exit.c, _write.c. * simple.sh: Update accordingly.
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
|
|
* GNU Mes --- Maxwell Equations of Software
|
|
* Copyright © 2016,2017,2019,2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
|
* Copyright © 2019,2020 Danny Milosavljevic <dannym@scratchpost.org>
|
|
*
|
|
* This file is part of GNU Mes.
|
|
*
|
|
* GNU Mes is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or (at
|
|
* your option) any later version.
|
|
*
|
|
* GNU Mes 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "mes/lib-mini.h"
|
|
|
|
#define SYS_exit "0x01"
|
|
|
|
// *INDENT-OFF*
|
|
#if !__TINYC__
|
|
void
|
|
_exit (int code)
|
|
{
|
|
asm (
|
|
"mov r7, $"SYS_exit"\n\t"
|
|
"mov r0, %0\n\t"
|
|
"swi $0\n\t"
|
|
: // no outputs "=" (r)
|
|
: "r" (code)
|
|
: "r0", "r7"
|
|
);
|
|
// not reached
|
|
_exit (0);
|
|
}
|
|
#else //__TINYC__
|
|
__asm__ (".global _exit\n");
|
|
__asm__ ("_exit:\n");
|
|
__asm__ (".int 0xe92d4880\n"); //push {r7, fp, lr}
|
|
__asm__ (".int 0xe28db008\n"); //add fp, sp, #8
|
|
__asm__ (".int 0xe24dd00c\n"); //sub sp, sp, #12
|
|
__asm__ (".int 0xe50b0010\n"); //str r0, [fp, #-16]
|
|
__asm__ (".int 0xe51b3010\n"); //ldr r3, [fp, #-16]
|
|
__asm__ (".int 0xe3a07001\n"); //mov r7, #1
|
|
__asm__ (".int 0xe1a00003\n"); //mov r0, r3
|
|
__asm__ (".int 0xef000000\n"); //svc 0x00000000
|
|
__asm__ (".int 0xe3a00000\n"); //mov r0, #0
|
|
__asm__ (".int 0xebfffffe\n"); //bl 0 <_exit>
|
|
__asm__ (".int 0xe320f000\n"); //nop {0}
|
|
__asm__ (".int 0xe24bd008\n"); //sub sp, fp, #8
|
|
__asm__ (".int 0xe8bd8880\n"); //pop {r7, fp, pc}
|
|
#endif //__TINYC__
|