diff options
Diffstat (limited to 'gcc/config/alpha/crtbegin.asm')
| -rw-r--r-- | gcc/config/alpha/crtbegin.asm | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/gcc/config/alpha/crtbegin.asm b/gcc/config/alpha/crtbegin.asm new file mode 100644 index 00000000000..dfb11e51eab --- /dev/null +++ b/gcc/config/alpha/crtbegin.asm @@ -0,0 +1,104 @@ + # Copyright (C) 1996, 1998 Free Software Foundation, Inc. + # Contributed by Richard Henderson (rth@tamu.edu) + # + # This file is free software; you can redistribute it and/or modify it + # under the terms of the GNU General Public License as published by the + # Free Software Foundation; either version 2, or (at your option) any + # later version. + # + # In addition to the permissions in the GNU 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 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.) + # + # This file 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 + # General Public License for more details. + # + # You should have received a copy of the GNU General Public License + # along with this program; see the file COPYING. If not, write to + # the Free Software Foundation, 59 Temple Place - Suite 330, + # Boston, MA 02111-1307, USA. + # + # As a special exception, if you link this library with files + # compiled with GCC to produce an executable, this does not cause + # the resulting executable to be covered by the GNU General Public License. + # This exception does not however invalidate any other reasons why + # the executable file might be covered by the GNU General Public License. + + # + # Heads of the constructor/destructor lists. + # + + # The __*TOR_LIST__ symbols are not global because when this file is used + # in a shared library, we do not want the symbol to fall over to the + # application's lists. + +.section .ctors,"aw" + + .align 3 +__CTOR_LIST__: + .quad -1 + +.section .dtors,"aw" + + .align 3 +__DTOR_LIST__: + .quad -1 + + + # + # Fragment of the ELF _fini routine that invokes our dtor cleanup. + # + +.section .fini,"ax" + + # Since the bits of the _fini function are spread across many + # object files, each potentially with its own GP, we must + # assume we need to load ours. Further, our .fini section + # can easily be more than 4MB away from our .text bits so we + # can't use bsr. + + br $29,1f +1: ldgp $29,0($29) + jsr $26,__do_global_dtors_aux + + # Must match the alignment we got from crti.o else we get + # zero-filled holes in our _fini function and then SIGILL. + .align 3 + + # + # Invoke our destructors in order. + # + +.text + + .align 3 + .ent __do_global_dtors_aux + +__do_global_dtors_aux: + ldgp $29,0($27) + lda $30,-16($30) + .frame $30,16,$26,0 + stq $26,0($30) + .mask 0x4000000,-16 + .prologue 1 + + lda $1,__DTOR_LIST__ + br 1f +0: stq $1,8($30) + jsr $26,($27) + ldq $1,8($30) +1: ldq $27,8($1) + addq $1,8,$1 + bne $27,0b + + ldq $26,0($30) + lda $30,16($30) + ret + + .end __do_global_dtors_aux |