rename crt0.S to crt1.S and clean up so it actually works :)

1 files changed, 0 insertions, 182 deletions

diff --git a/libc/sysdeps/linux/x86_64/crt0.S b/libc/sysdeps/linux/x86_64/crt0.S
deleted file mode 100644
index fa08278d9..000000000
--- a/libc/sysdeps/linux/x86_64/crt0.S
+++ /dev/null
@@ -1,182 +0,0 @@
-/* Startup code compliant to the ELF x86-64 ABI.
-   Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 2001.
-
-   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.  */
-
-/* Originally based on glibc's sysdeps/x86_64/elf/start.S */
-
-/* This is the canonical entry point, usually the first thing in the text
-   segment.  The SVR4/i386 ABI (pages 3-31, 3-32) says that when the entry
-   point runs, most registers' values are unspecified, except for:
-
-   %rdx		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.
-
-   %rsp		The stack contains the arguments and environment:
-		0(%rsp)			argc
-		8(%rsp)			argv[0]
-		...
-		(8*argc)(%rsp)		NULL
-		(8*(argc+1))(%rsp)	envp[0]
-		...
-					NULL
-*/
-
-#include <features.h>
-
-.text
-	.global	_start
-	.type	_start,%function
-#if defined L_crt0 || defined L_Scrt0 || ! defined __UCLIBC_CTOR_DTOR__
-	.type	__uClibc_main,%function
-#else
-	.weak	_init
-	.weak	_fini
-	.type	__uClibc_start_main,%function
-#endif
-/* Stick in a dummy reference to main(), so that if an application
- * is linking when the main() function is in a static library (.a)
- * we can be sure that main() actually gets linked in */
-	.type	main,%function
-
-_start:
-	/* Clear the frame pointer.  The ABI suggests this be done, to mark
-	   the outermost frame obviously.  */
-	xorq %rbp, %rbp
-
-	/* Extract the arguments as encoded on the stack and set up
-	   the arguments for __libc_start_main (int (*main) (int, char **, char **),
-		   int argc, char *argv,
-		   void (*init) (void), void (*fini) (void),
-		   void (*rtld_fini) (void), void *stack_end).
-	   The arguments are passed via registers and on the stack:
-	main:		%rdi
-	argc:		%rsi
-	argv:		%rdx
-	init:		%rcx
-	fini:		%r8
-	rtld_fini:	%r9
-	stack_end:	stack.	*/
-
-#if 0
-	/* glibc */
-	movq %rdx, %r9   /* Address of the shared library termination function. */
-	popq %rsi        /* Pop the argument count. */
-	movq %rsp, %rdx  /* argv starts just at the current stack top. */
-	movq %rsi, %rbx  /* now we calc envp ... envp = argc */
-	addq $8, %rbx
-	shl  $0x3, %rbx  /* envp *= 8 */
-	addq %rdx, %rbx  /* envp += argv */
-#else
-	/* uclibc */
-	movq %rdx, %r9   /* Address of the shared library termination function. */
-	popq %rdi        /* Pop the argument count. */
-	movq %rsp, %rsi  /* argv starts just at the current stack top. */
-	movq %rdi, %rdx  /* now we calc envp ... envp = argc */
-	addq $8, %rdx
-	shl  $0x3, %rdx  /* envp *= 8 */
-	addq %rsi, %rdx  /* envp += argv */
-#endif
-	/* Align the stack to a 16 byte boundary to follow the ABI. */
-	andq $~15, %rsp
-
-	pushq %rax		/* Push garbage because we push 8 more bytes.  */
-
-	/* Provide the highest stack address to the user code (for stacks
-	   which grow downwards).  */
-	pushq %rsp
-
-/**************
- * START TODO */
-#if defined L_Scrt0 || defined L_Scrt1
-	call .L0
-.L0:
-	popq %rbx
-	addq $_GLOBAL_OFFSET_TABLE_+[.-.L0],%rbx
-#endif
-
-#if (defined L_crt1 || defined L_Scrt1) && defined __UCLIBC_CTOR_DTOR__
-	/* Push .init and .fini arguments to __uClibc_start_main() on the stack */
-#ifdef L_Scrt1
-	pushl _fini@GOT(%rip)
-	pushl _init@GOT(%rip)
-#else
-	pushl $_fini
-	pushl $_init
-#endif
-
-	/* Push envp, argc, and argc arguments to __uClibc_start_main() on the stack */
-#if 0
-	pushq %rdx /* Environment pointer */
-	pushq %rsi /* Argument pointer */
-	pushq %rdi /* And the argument count */
-#endif
-
-	/* Ok, now run uClibc's main() -- shouldn't return */
-#ifdef L_Scrt1
-	call *__uClibc_start_main@GOT(%rip)
-#else
-	call __uClibc_start_main
-#endif
-#else
-
-	/* Push envp, argc, and argc arguments to __uClibc_start_main() on the stack */
-#if 0
-	pushq %rdx /* Environment pointer */
-	pushq %rsi /* Argument pointer */
-	pushq %rdi /* And the argument count */
-#endif
-
-#ifdef L_Scrt0
-	call *__uClibc_main@GOT(%rip)
-#else
-	call __uClibc_main
-#endif
-#endif
-/* END TODO *
- ************/
-
-	hlt			/* Crash if somehow `exit' does return.	 */
-.size _start,.-_start
-
-/* 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