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+/* Startup code for Alpha/ELF.
+Copyright (C) 1993, 1995, 1996 Free Software Foundation, Inc.
+Contributed by Richard Henderson <rth@tamu.edu>
+
+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. */
+
+#include <sysdep.h>
+
+ .text
+ .globl __start
+ .align 3
+ .ent __start, 0
+__start:
+ .frame fp, 0, zero
+ mov zero, fp
+ br gp, 1f
+1: ldgp gp, 0(gp)
+ .prologue 1
+
+ /* Save v0. When starting a binary via the dynamic linker, s0
+ contains the address of the shared library termination function,
+ which we will register below with atexit() to be called by exit().
+ If we are statically linked, this will be NULL. */
+ mov v0, s0
+
+ /* Do essential libc initialization (sp points to argc, argv, and envp) */
+ jsr ra, __libc_init_first
+ ldgp gp, 0(ra)
+
+ /* Now that we have the proper stack frame, register library termination
+ function, if there is any: */
+
+ beq s0, 1f
+ mov s0, a0
+ jsr ra, atexit
+ ldgp gp, 0(ra)
+1:
+
+ /* Extract the arguments and environment as encoded on the stack. */
+ ldl a0, 0(sp) /* get argc */
+ lda a1, 8(sp) /* get argv */
+ s8addq a0, a1, a2 /* get envp */
+ addq a2, 8, a2
+ stq a2, _environ
+
+ mov a0, s0 /* tuck them away */
+ mov a1, s1
+ mov a2, s2
+
+#ifdef HAVE_INITFINI
+ /* Call _init, the entry point to our own .init section. */
+ jsr ra, _init
+ ldgp gp, 0(ra)
+
+ /* Register our .fini section with atexit. */
+ lda a0, _fini
+ jsr ra, atexit
+ ldgp gp, 0(ra)
+#else
+ /* initialize constructors: */
+ jsr ra, __main
+ ldgp gp, 0(ra)
+#endif
+ mov s0, a0
+ mov s1, a1
+ mov s2, a2
+
+ /* Call the user's main and exit with its return value. */
+ jsr ra, main
+ ldgp gp, 0(ra)
+
+ mov v0, a0
+ jsr ra, exit
+
+ /* Die very horribly if exit returns. Call_pal hlt is callable from
+ kernel mode only; this will result in an illegal instruction trap. */
+ call_pal 0
+END(__start)
+
+/* Define a symbol for the first piece of initialized data. */
+ .data
+ .globl __data_start
+__data_start:
+ .long 0
+
+#ifdef __ELF__
+ .size __data_start, 4
+ .type __data_start, @object
+#endif
+
+weak_alias(__data_start, data_start)