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-rw-r--r--sysdeps/sparc/elf/start.S112
1 files changed, 0 insertions, 112 deletions
diff --git a/sysdeps/sparc/elf/start.S b/sysdeps/sparc/elf/start.S
deleted file mode 100644
index db407d7bae..0000000000
--- a/sysdeps/sparc/elf/start.S
+++ /dev/null
@@ -1,112 +0,0 @@
-/* Startup code compliant to the ELF SPARC ABI.
- Copyright (C) 1996, 1997 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., 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/SPARC ABI (NOTE: I don't actually have it) says that
- when the entry point runs, most registers' values are unspecified,
- except for:
-
- %g1 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
- .align 16
- .global _start
-_start:
- /* %g1 contains the address of the shared library termination
- function, which we will register with `atexit' to be called by
- `exit'. I suspect that on some systems, and when statically
- linked, this will not be set by anything to any function
- pointer; hopefully it will be zero so we don't try to call
- random pointers. */
- orcc %g1, %g0, %o0 /* Move %g1 to %o0 while testing it. */
- be nofini
-
- /* In delay slot: clear the frame pointer. The ABI suggests this
- be done, to mark the outermost frame obviously. */
- clr %fp
-
- /* Call atexit, argument was set in %o0 above. */
- call atexit
- nop
-nofini:
-
- /* We will use some local variables in registers below. %g1 and
- the %oN registers are call-clobbered, so we can't just use them. */
-#define ARGC %l0
-#define ARGV %l1
-#define ENVP %l2
-#define TMP %l3
-
- /* Do essential libc initialization. In statically linked
- programs under the GNU Hurd, this is what sets up the
- arguments on the stack for the code below. */
- call __libc_init_first
- sethi %hi(_environ), TMP /* In delay slot: prepare to use &_environ. */
-
- /* Extract the arguments and environment as encoded on the stack
- and save them in local variables. */
- ld [%sp + 64], ARGC /* After the register save area, ARGC. */
- add %sp, 64+4, ARGV /* Next, the ARGV elements. */
- /* After ARGC words that are the ARGV elements, and a zero word,
- are the ENVP elements. Do ENVP = &ARGV[ARGC + 1]. */
- add ARGC, 1, ENVP
- sll ENVP, 2, ENVP
- add ARGV, ENVP, ENVP
- /* Store ENVP in the global variable `_environ'. */
- ld [TMP + %lo(_environ)], ENVP
-
- /* Call `_init', which is the entry point to our own `.init'
- section; and register with `atexit' to have `exit' call
- `_fini', which is the entry point to our own `.fini' section. */
- call _init
- sethi %hi(_fini), TMP /* In delay slot of call. */
- or TMP, %lo(_fini), %o0 /* Argument to atexit is &_fini. */
- call atexit
- nop
-
- /* Call the user's main function, and exit with its value. */
- mov ARGC, %o0
- mov ARGV, %o1
- call main
- mov ENVP, %o2
-
- call exit /* This should never return. */
- nop
- unimp 0 /* Crash if somehow it does return. */
-
-/* Define a symbol for the first piece of initialized data. */
- .data
- .global __data_start
-__data_start:
- .long 0
- .weak data_start
- data_start = __data_start