glibc/sysdeps/hppa/elf/start.S

81 lines
1.9 KiB
ArmAsm

/* ELF startup code for HPPA.
Copyright (C) 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.
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. */
.text
.align 4
.import main, code
.import $global$, data
.import __libc_start_main, code
.import __libc_csu_fini, code
.import __libc_csu_init, code
.globl _start
.export _start, ENTRY
.type _start,@function
_start:
.proc
.callinfo
/* load main */
ldil LP%main, %r26
ldo RP%main(%r26), %r26
/* argc and argv should be in 25 and 24 */
/* Expand the stack to store the 5th through 7th args */
ldo 64(%sp), %sp
/* void (*rtld_fini) (void) (actually the 6th arg) */
stw %r23, -56(%sp)
/* void (*init) (void) */
ldil LP%__libc_csu_init, %r23
ldo RP%__libc_csu_init(%r23), %r23
/* void (*fini) (void) */
ldil LP%__libc_csu_fini, %r22
ldo RP%__libc_csu_fini(%r22), %r22
stw %r22, -52(%sp)
/* void *stack_end */
stw %sp, -60(%sp)
/* load global */
ldil L%$global$, %dp
ldo R%$global$(%dp), %dp
bl __libc_start_main,%r2
nop
/* die horribly if it returned (it shouldn't) */
iitlbp %r0,(%r0)
nop
.procend
/* 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