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authorAndreas Jaeger <jaegerandi@gmail.com>2012-03-28 09:19:38 +0200
committerAndreas Jaeger <jaegerandi@gmail.com>2012-03-28 09:19:38 +0200
commit09ae94c11b4309b425fbbfaa095e64cac2ae8cb8 (patch)
treef38b9109ade97075e9410b6eea818bf69870db5e /sysdeps/sh/start.S
parent2f60e7a8bc36e5c3b7ea8969b95e562a62bd4ef1 (diff)
downloadglibc-09ae94c11b4309b425fbbfaa095e64cac2ae8cb8.tar.gz
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Delete sysdeps/sh/elf
	* sysdeps/sh/elf/configure.in: Moved to ...
	* sysdeps/sh/configure.in: ... here.
	* sysdeps/sh/elf/start.S: Moved to ...
	* sysdeps/sh/start.S: ... here.
	* sysdeps/sh/elf/configure: Delete file.
Diffstat (limited to 'sysdeps/sh/start.S')
-rw-r--r--sysdeps/sh/start.S111
1 files changed, 111 insertions, 0 deletions
diff --git a/sysdeps/sh/start.S b/sysdeps/sh/start.S
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+/* Startup code for SH & ELF.
+   Copyright (C) 1999, 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is the canonical entry point, usually the first thing in the text
+   segment.
+
+	Note that the code in the .init section has already been run.
+	This includes _init and _libc_init
+
+
+	At this entry point, most registers' values are unspecified, except:
+
+   r4		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
+*/
+
+	.text
+	.globl _start
+	.type _start,@function
+_start:
+	/* Clear the frame pointer since this is the outermost frame.  */
+	mov #0, r14
+
+	/* Pop argc off the stack and save a pointer to argv */
+	mov.l @r15+,r5
+	mov r15, r6
+
+	/* Push the last arguments to main() onto the stack */
+	mov.l r4,@-r15
+	mov.l L_fini,r0
+	mov.l r0,@-r15
+
+	/* Set up the other arguments for main() that go in registers */
+	mov.l L_main,r4
+	mov.l L_init,r7
+
+	/* __libc_start_main (main, argc, argv, init, fini, rtld_fini) */
+
+	/* Let the libc call main and exit with its return code.  */
+	mov.l L_libc_start_main,r1
+	jsr @r1
+	nop
+	/* should never get here....*/
+	mov.l L_abort,r1
+	jsr @r1
+	nop
+	.align	2
+L_main:
+	.long	main
+L_init:
+	.long	__libc_csu_init
+L_fini:
+	.long	__libc_csu_fini
+L_libc_start_main:
+	.long	__libc_start_main
+L_abort:
+	.long	abort
+/* 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
+	.global __fpscr_values
+__fpscr_values:
+	.long   0
+	.long   0x80000