diff options
Diffstat (limited to 'libc/sysdeps/linux/m68k')
| -rw-r--r-- | libc/sysdeps/linux/m68k/Makefile | 10 | ||||
| -rw-r--r-- | libc/sysdeps/linux/m68k/crt0.S | 2 | ||||
| -rw-r--r-- | libc/sysdeps/linux/m68k/crt0.c | 47 |
3 files changed, 57 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/m68k/Makefile b/libc/sysdeps/linux/m68k/Makefile index e26e40928..08906a909 100644 --- a/libc/sysdeps/linux/m68k/Makefile +++ b/libc/sysdeps/linux/m68k/Makefile @@ -26,8 +26,14 @@ ASFLAGS=$(CFLAGS) # If you're looking for vfork(), it is defined in include/unistd.h + +ifeq ($(HAS_MMU),true) +CRT0=crt0.c +CRT0_OBJ=$(patsubst %.c,%.o, $(CRT0)) +else CRT0=crt0.S CRT0_OBJ=$(patsubst %.S,%.o, $(CRT0)) +endif SSRC=setjmp.S vfork.S # longjmp.S _start.S clone.S SOBJS=$(patsubst %.S,%.o, $(SSRC)) @@ -47,7 +53,11 @@ ar-target: $(OBJS) $(CRT0_OBJ) $(AR) $(ARFLAGS) $(LIBC) $(OBJS) cp $(CRT0_OBJ) $(TOPDIR)libc/$(CRT0_OBJ) +ifeq ($(HAS_MMU),true) +$(CRT0_OBJ): %.o : %.c +else $(CRT0_OBJ): %.o : %.S +endif $(CC) $(CFLAGS) -c $< -o $@ $(STRIPTOOL) -x -R .note -R .comment $*.o diff --git a/libc/sysdeps/linux/m68k/crt0.S b/libc/sysdeps/linux/m68k/crt0.S index 3e828cc3a..04aae1466 100644 --- a/libc/sysdeps/linux/m68k/crt0.S +++ b/libc/sysdeps/linux/m68k/crt0.S @@ -34,9 +34,7 @@ Cambridge, MA 02139, USA. */ nop _start: /* put here so that references to _start work with elf-PIC */ -#ifndef __UCLIBC_HAS_MMU__ movea.l %d5, %a5 /* uClinux passes in data segment here */ -#endif /* * argc, argv and envp are on the stack, just call to main */ diff --git a/libc/sysdeps/linux/m68k/crt0.c b/libc/sysdeps/linux/m68k/crt0.c new file mode 100644 index 000000000..0498d06e1 --- /dev/null +++ b/libc/sysdeps/linux/m68k/crt0.c @@ -0,0 +1,47 @@ +/* + * uClibc/sysdeps/linux/i386/crt0.S + * Pull stuff off the stack and get uClibc moving. + * + * Copyright (C) 2001 by Lineo, inc. + * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> + * who is very pleased he managed to do this entirely in C code. + * + * This program 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. + * + * This program 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 this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +extern void __uClibc_main(int argc,void *argv,void *envp); + +/* a little bit of stuff to support C++ */ +__asm__(".section .ctors,\"aw\"\n.align 4\n.global __CTOR_LIST__\n" + "__CTOR_LIST__:\n.long -1\n"); + +__asm__(".section .dtors,\"aw\"\n.align 4\n.global __DTOR_LIST__\n" + "__DTOR_LIST__:\n.long -1\n"); + +void _start(unsigned int first_arg) +{ + unsigned int argc; + char **argv, **envp; + unsigned long *stack; + + stack = (unsigned long*) &first_arg; + argc = *(stack - 1); + argv = (char **) stack; + envp = (char **)stack + argc + 1; + + __uClibc_main(argc, argv, envp); +} + |