From e4eede7085981db70dc3937c27ec5ebdc15a7044 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Sat, 14 Jan 2006 07:14:40 +0000
Subject: fixup so we can at least get to the ldso Standalone execution step

---
 ldso/ldso/m68k/dl-startup.h | 48 ++++++++++++++++++++++++++++++---------------
 1 file changed, 32 insertions(+), 16 deletions(-)

(limited to 'ldso')

diff --git a/ldso/ldso/m68k/dl-startup.h b/ldso/ldso/m68k/dl-startup.h
index 07857cf38..1a74cb15e 100644
--- a/ldso/ldso/m68k/dl-startup.h
+++ b/ldso/ldso/m68k/dl-startup.h
@@ -4,23 +4,43 @@
  * Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org>
  */
 
-asm(
-    "	.text\n"
-    "	.globl	_start\n"
-    "	.type	_start,@function\n"
-    "_start:\n"
-    "	.set	_start,_dl_start\n"
-    "	.size	_start,.-_start\n"
-    "	.previous\n"
-);
+asm ("\
+	.text\n\
+	.globl _start\n\
+	.type _start,@function\n\
+_start:\n\
+	move.l %sp, -(%sp)\n\
+	jbsr _dl_start\n\
+	addq.l #4, %sp\n\
+	# Save the user entry point address in %a4.\n\
+	move.l %d0, %a4\n\
+	# See if we were run as a command with the executable file\n\
+	# name as an extra leading argument.\n\
+	move.l _dl_skip_args(%pc), %d0\n\
+	# Pop the original argument count\n\
+	move.l (%sp)+, %d1\n\
+	# Subtract _dl_skip_args from it.\n\
+	sub.l %d0, %d1\n\
+	# Adjust the stack pointer to skip _dl_skip_args words.\n\
+	lea (%sp, %d0*4), %sp\n\
+	# Push back the modified argument count.\n\
+	move.l %d1, -(%sp)\n\
+	# Pass our finalizer function to the user in %a1.\n\
+	lea _dl_fini(%pc), %a1\n\
+	# Initialize %fp with the stack pointer.\n\
+	move.l %sp, %fp\n\
+	# Jump to the user's entry point.\n\
+	jmp (%a4)\n\
+	.size _dl_start_user, . - _dl_start_user\n\
+	.previous");
 
 /* Get a pointer to the argv array.  On many platforms this can be just
  * the address if the first argument, on other platforms we need to
  * do something a little more subtle here.  */
-#define GET_ARGV(ARGVP, ARGS) ARGVP = ((unsigned int *) & ARGS)
+#define GET_ARGV(ARGVP, ARGS) ARGVP = (((unsigned long *) ARGS) + 1)
 
 /* Handle relocation of the symbols in the dynamic loader. */
-static inline
+static __always_inline
 void PERFORM_BOOTSTRAP_RELOC(ELF_RELOC *rpnt, unsigned long *reloc_addr,
 	unsigned long symbol_addr, unsigned long load_addr, Elf32_Sym *symtab)
 {
@@ -63,8 +83,4 @@ void PERFORM_BOOTSTRAP_RELOC(ELF_RELOC *rpnt, unsigned long *reloc_addr,
 /* Transfer control to the user's application, once the dynamic loader is
  * done.  This routine has to exit the current function, then call the
  * _dl_elf_main function.  */
-#define START() \
-	__asm__ volatile ( \
-		"unlk %%a6\n\t" \
-		"jmp %0@" \
-		: : "a" (_dl_elf_main));
+#define START() return _dl_elf_main
-- 
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