+++ /dev/null
-/* 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, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
-
-/*
- * NOTE: this file works for PIC and non-PIC code. Be very careful how
- * you modify it !
- */
-
-#include <features.h>
-
- .global _start
- .global __exit
- .global atexit
- .global main
-
- .text
-
- nop
- nop
-_start: /* put here so that references to _start work with elf-PIC */
-
- movea.l %d5, %a5 /* uClinux passes in data segment here */
-/*
- * argc, argv and envp are on the stack, just call to main
- */
- lea __uClibc_main-.-8, %a0 /* call uClibc main */
- jsr %pc@(%a0)
-
- /* If that didn't kill us, ... */
-__exit:
- move.l %sp@+,%d1
- moveq #1,%d0 /* __NR_exit */
- trap #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
-#if defined(__HAVE_ELF__)
- .weak atexit
- atexit = empty_func
-#else
- .set atexit,empty_func
-#endif
-
-
-/* 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
-
--- /dev/null
+/* Startup code compliant to the ELF m68k ABI.
+ Copyright (C) 1996, 1997, 1998, 2001, 2002 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.
+
+ In addition to the permissions in the GNU Lesser General Public
+ License, the Free Software Foundation gives you unlimited
+ permission to link the compiled version of this file with other
+ programs, and to distribute those programs without any restriction
+ coming from the use of this file. (The GNU Lesser General Public
+ License restrictions do apply in other respects; for example, they
+ cover modification of the file, and distribution when not linked
+ into another program.)
+
+ Note that people who make modified versions of this file are not
+ obligated to grant this special exception for their modified
+ versions; it is their choice whether to do so. The GNU Lesser
+ General Public License gives permission to release a modified
+ version without this exception; this exception also makes it
+ possible to release a modified version which carries forward this
+ exception.
+
+ 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. */
+
+/* This is the canonical entry point, usually the first thing in the text
+ segment. The SVR4/m68k ABI says that when the entry point runs,
+ most registers' values are unspecified, except for:
+
+ %a1 Contains a function pointer to be registered with `atexit'.
+ This is how the dynamic linker arranges to have DT_FINI
+ functions called for shared libraries that have been loaded
+ before this code runs.
+
+ %sp The stack contains the arguments and environment:
+ 0(%sp) argc
+ 4(%sp) argv[0]
+ ...
+ (4*argc)(%sp) NULL
+ (4*(argc+1))(%sp) envp[0]
+ ...
+ NULL
+*/
+
+#include <features.h>
+
+ .text
+ .type _init,%function
+ .type _fini,%function
+#ifndef __UCLIBC_CTOR_DTOR__
+ .weak _init
+ .weak _fini
+#endif
+ .globl _start
+ .type _start,@function
+_start:
+ /* Clear the frame pointer. The ABI suggests this be done, to mark
+ the outermost frame obviously. */
+ sub.l %fp, %fp
+
+ /* Extract the arguments as encoded on the stack and set up the
+ arguments for `main': argc, argv. envp will be determined
+ later in __libc_start_main. */
+ move.l (%sp)+, %d0 /* Pop the argument count. */
+ move.l %sp, %a0 /* The argument vector starts just at the
+ current stack top. */
+
+ /* Provide the highest stack address to the user code (for stacks
+ which grow downward). */
+ pea (%sp)
+
+ pea (%a1) /* Push address of the shared library
+ termination function. */
+
+ /* Push the address of our own entry points to `.fini' and
+ `.init'. */
+ pea _fini
+ pea _init
+
+ pea (%a0) /* Push second argument: argv. */
+ move.l %d0, -(%sp) /* Push first argument: argc. */
+
+ pea main
+
+ /* Call the user's main function, and exit with its value. But
+ let the libc call main. */
+ jbsr __uClibc_main
+
+ illegal /* Crash if somehow `exit' does return. */
+
+/* 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
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