glibc/sysdeps/alpha/elf/start.S
Richard Henderson 7d84a06715 ¸
1998-08-23  Ricahrd Henderson  <rth@cygnus.com>

	* sysdeps/alpha/elf/crtbegin.S: Fix .prologue; no pv used.
	* sysdeps/alpha/elf/crtend.S: Likewise.
	* sysdeps/alpha/elf/start.S: Likewise.

	* sysdeps/unix/sysv/linux/alpha/rt_sigaction.S: Fix .prologue;
	non-standard pv usage.

	* sysdeps/unix/sysv/linux/alpha/brk.S: Use jmp macro for relaxation.
	* sysdeps/unix/sysv/linux/alpha/getitimer.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/getrusage.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/gettimeofday.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/select.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/setitimer.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/settimeofday.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/utimes.S: Likewise.
	* sysdeps/unix/sysv/linux/alpha/wait4.S: Likewise.

	* sysdeps/alpha/fpu/e_sqrt.c: Use the asm version when the input is
	a finite non-denormal, deferring to the full IEEE version otherwise.

	* sysdeps/alpha/fpu/bits/mathinline.h (__floorf, __floor):
	Early out for -0.  Optimize for !_IEEE_FP_INEXACT.
	* sysdeps/alpha/fpu/s_floor.c: New.
	* sysdeps/alpha/fpu/s_floorf.c: New.
	* sysdeps/alpha/fpu/s_ceil.c: New.
	* sysdeps/alpha/fpu/s_ceilf.c: New.
1998-08-23 04:10:13 +00:00

62 lines
1.9 KiB
ArmAsm

/* Startup code for Alpha/ELF.
Copyright (C) 1993, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
.text
.align 3
.globl _start
.ent _start, 0
_start:
.frame fp, 0, zero
mov zero, fp
br gp, 1f
1: ldgp gp, 0(gp)
subq sp, 16, sp
.prologue 0
/* Load address of the user's main function. */
lda a0, main
ldl a1, 16(sp) /* get argc */
lda a2, 24(sp) /* get argv */
/* Load address of our own entry points to .fini and .init. */
lda a3, _init
lda a4, _fini
/* Store address of the shared library termination function. */
mov v0, a5
/* Provide the highest stack address to the user code. */
stq sp, 0(sp)
/* Call the user's main function, and exit with its value.
But let the libc call main. */
jsr ra, __libc_start_main
/* 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
/* For ECOFF backwards compatibility. */
weak_alias(_start, __start)