From e364302aeaa7fc4f18c66acdbba5dd2c14f77555 Mon Sep 17 00:00:00 2001 From: Yoshinori Sato Date: Sun, 24 May 2015 02:06:24 +0900 Subject: h8300: Assembly functions - remove symbol prefix - new startup - new clone syscall support Signed-off-by: Yoshinori Sato Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/h8300/crt1.S | 91 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 libc/sysdeps/linux/h8300/crt1.S (limited to 'libc/sysdeps/linux/h8300/crt1.S') diff --git a/libc/sysdeps/linux/h8300/crt1.S b/libc/sysdeps/linux/h8300/crt1.S new file mode 100644 index 000000000..847872ad7 --- /dev/null +++ b/libc/sysdeps/linux/h8300/crt1.S @@ -0,0 +1,91 @@ +/* Copyright (C) 1991, 1992 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, see . */ + +#include + + .global _start + .global __exit + .global atexit + .global main + +#ifdef __H8300S__ + .h8300s +#else + .h8300h +#endif +/* +void __uClibc_main(int (*main)(int, char **, char **), int argc, + char **argv, void (*app_init)(void), void (*app_fini)(void), + void (*rtld_fini)(void),void *stack_end attribute_unused) +*/ + .text + +_start: /* put here so that references to _start work with elf-PIC */ + + mov.l @sp+,er1 /* argc */ + mov.l @sp+,er2 /* argv */ + add.l #4,sp + +#if !defined(__PIC__) + mov.l sp, @-sp + sub.l er0,er0 + mov.l er0,@-sp + mov.l #_fini,er0 + mov.l er0,@-sp + mov.l #_init,er0 + mov.l er0,@-sp + mov.l #main,er0 + jsr @__uClibc_main +#else + mov.l sp, @-sp + sub.l er0,er0 + mov.l er0,@-sp + mov.l @(_fini@GOTOFF,er5),er0 + mov.l er0,@-sp + mov.l @(_init@GOTOFF,er5),er0 + mov.l er0,@-sp + mov.l @(main@GOTOFF,er5),er0 + mov.l @(__uClibc_main@GOTOFF,er5),er3 + jsr @er3 +#endif + + /* If that didn't kill us, ... */ +__exit: + mov.l er0,er1 + sub.l er0,er0 + inc.l #1,er0 /* __NR_exit */ + trapa #0 + +/* + * this was needed for gcc/g++-builds, atexit was not getting included + * for some stupid reason, this gets us a compiler + */ +empty_func: + rts + .weak atexit + atexit = empty_func + + +/* 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 + -- cgit v1.2.3