260 lines
4.8 KiB
NASM
260 lines
4.8 KiB
NASM
/* Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
|
|
Contributed by Jes Sorensen, <Jes.Sorensen@cern.ch>
|
|
|
|
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 "auto-host.h"
|
|
|
|
.section .ctors,"aw","progbits"
|
|
.align 8
|
|
__CTOR_LIST__:
|
|
data8 -1
|
|
|
|
.section .dtors,"aw","progbits"
|
|
.align 8
|
|
__DTOR_LIST__:
|
|
data8 -1
|
|
|
|
.section .jcr,"aw","progbits"
|
|
.align 8
|
|
__JCR_LIST__:
|
|
|
|
.section .sdata
|
|
.type dtor_ptr#,@object
|
|
.size dtor_ptr#,8
|
|
dtor_ptr:
|
|
data8 @gprel(__DTOR_LIST__# + 8)
|
|
|
|
/* A handle for __cxa_finalize to manage c++ local destructors. */
|
|
.global __dso_handle#
|
|
.type __dso_handle#,@object
|
|
.size __dso_handle#,8
|
|
#ifdef SHARED
|
|
.section .data
|
|
__dso_handle:
|
|
data8 __dso_handle#
|
|
#else
|
|
.section .bss
|
|
__dso_handle:
|
|
data8 0
|
|
#endif
|
|
.hidden __dso_handle#
|
|
|
|
|
|
#ifdef HAVE_INITFINI_ARRAY
|
|
|
|
.section .fini_array,"a","progbits"
|
|
data8 @fptr(__do_global_dtors_aux)
|
|
|
|
.section .init_array,"a","progbits"
|
|
data8 @fptr(__do_jv_register_classes)
|
|
data8 @fptr(__do_global_ctors_aux)
|
|
|
|
#else /* !HAVE_INITFINI_ARRAY */
|
|
/*
|
|
* Fragment of the ELF _fini routine that invokes our dtor cleanup.
|
|
*
|
|
* We make the call by indirection, because in large programs the
|
|
* .fini and .init sections are not in range of the destination, and
|
|
* we cannot allow the linker to insert a stub at the end of this
|
|
* fragment of the _fini function. Further, Itanium does not implement
|
|
* the long branch instructions, and we do not wish every program to
|
|
* trap to the kernel for emulation.
|
|
*
|
|
* Note that we require __do_global_dtors_aux to preserve the GP,
|
|
* so that the next fragment in .fini gets the right value.
|
|
*/
|
|
.section .fini,"ax","progbits"
|
|
{ .mlx
|
|
movl r2 = @pcrel(__do_global_dtors_aux# - 16)
|
|
}
|
|
{ .mii
|
|
mov r3 = ip
|
|
;;
|
|
add r2 = r2, r3
|
|
;;
|
|
}
|
|
{ .mib
|
|
mov b6 = r2
|
|
br.call.sptk.many b0 = b6
|
|
;;
|
|
}
|
|
|
|
/* Likewise for _init. */
|
|
|
|
.section .init,"ax","progbits"
|
|
{ .mlx
|
|
movl r2 = @pcrel(__do_jv_register_classes# - 16)
|
|
}
|
|
{ .mii
|
|
mov r3 = ip
|
|
;;
|
|
add r2 = r2, r3
|
|
;;
|
|
}
|
|
{ .mib
|
|
mov b6 = r2
|
|
br.call.sptk.many b0 = b6
|
|
;;
|
|
}
|
|
#endif /* !HAVE_INITFINI_ARRAY */
|
|
|
|
.section .text
|
|
.align 16
|
|
.proc __do_global_dtors_aux#
|
|
__do_global_dtors_aux:
|
|
#ifndef SHARED
|
|
{ .mii
|
|
alloc loc3 = ar.pfs, 0, 4, 1, 0
|
|
addl loc0 = @gprel(dtor_ptr#), gp
|
|
mov loc1 = b0
|
|
}
|
|
{ .mib
|
|
mov loc2 = gp
|
|
br.sptk.few 1f
|
|
;;
|
|
}
|
|
#else
|
|
/*
|
|
if (__cxa_finalize)
|
|
__cxa_finalize(__dso_handle)
|
|
*/
|
|
{ .mii
|
|
alloc loc3 = ar.pfs, 0, 4, 1, 0
|
|
addl loc0 = @gprel(dtor_ptr#), gp
|
|
addl r16 = @ltoff(@fptr(__cxa_finalize#)), gp
|
|
;;
|
|
}
|
|
{ .mmi
|
|
ld8 r16 = [r16]
|
|
;;
|
|
addl out0 = @ltoff(__dso_handle#), gp
|
|
cmp.ne p7, p0 = r0, r16
|
|
;;
|
|
}
|
|
{ .mmi
|
|
ld8 out0 = [out0]
|
|
(p7) ld8 r18 = [r16], 8
|
|
mov loc1 = b0
|
|
;;
|
|
}
|
|
{ .mfi
|
|
mov loc2 = gp
|
|
(p7) mov b6 = r18
|
|
}
|
|
{
|
|
.mfb
|
|
(p7) ld8 gp = [r16]
|
|
(p7) br.call.sptk.many b0 = b6
|
|
}
|
|
{ .mfb
|
|
br.sptk.few 1f
|
|
}
|
|
#endif
|
|
/*
|
|
do {
|
|
dtor_ptr++;
|
|
(*(dtor_ptr-1)) ();
|
|
} while (dtor_ptr);
|
|
*/
|
|
0:
|
|
{ .mmi
|
|
st8 [loc0] = r15
|
|
ld8 r17 = [r16], 8
|
|
;;
|
|
}
|
|
{ .mib
|
|
ld8 gp = [r16]
|
|
mov b6 = r17
|
|
br.call.sptk.many b0 = b6
|
|
}
|
|
1:
|
|
{ .mmi
|
|
ld8 r15 = [loc0]
|
|
;;
|
|
add r16 = r15, loc2
|
|
adds r15 = 8, r15
|
|
;;
|
|
}
|
|
{ .mmi
|
|
ld8 r16 = [r16]
|
|
mov gp = loc2
|
|
mov b0 = loc1
|
|
;;
|
|
}
|
|
{ .mib
|
|
cmp.ne p6, p0 = r0, r16
|
|
mov ar.pfs = loc3
|
|
(p6) br.cond.sptk.few 0b
|
|
}
|
|
{ .bbb
|
|
br.ret.sptk.many b0
|
|
;;
|
|
}
|
|
.endp __do_global_dtors_aux#
|
|
|
|
.align 16
|
|
.proc __do_jv_register_classes#
|
|
__do_jv_register_classes:
|
|
{ .mlx
|
|
alloc loc2 = ar.pfs, 0, 3, 1, 0
|
|
movl out0 = @gprel(__JCR_LIST__)
|
|
;;
|
|
}
|
|
{ .mmi
|
|
addl r14 = @ltoff(@fptr(_Jv_RegisterClasses)), gp
|
|
add out0 = out0, gp
|
|
;;
|
|
}
|
|
{ .mmi
|
|
ld8 r14 = [r14]
|
|
ld8 r15 = [out0]
|
|
cmp.ne p6, p0 = r0, r0
|
|
;;
|
|
}
|
|
{ .mib
|
|
cmp.eq.or p6, p0 = r0, r14
|
|
cmp.eq.or p6, p0 = r0, r15
|
|
(p6) br.ret.sptk.many b0
|
|
}
|
|
{ .mii
|
|
ld8 r15 = [r14], 8
|
|
mov loc0 = b0
|
|
mov loc1 = gp
|
|
;;
|
|
}
|
|
{ .mib
|
|
ld8 gp = [r14]
|
|
mov b6 = r15
|
|
br.call.sptk.many b0 = b6
|
|
;;
|
|
}
|
|
{ .mii
|
|
mov gp = loc1
|
|
mov b0 = loc0
|
|
mov ar.pfs = loc2
|
|
}
|
|
{ .bbb
|
|
br.ret.sptk.many b0
|
|
;;
|
|
}
|
|
.endp __do_jv_register_classes#
|
|
|
|
#ifdef SHARED
|
|
.weak __cxa_finalize#
|
|
#endif
|
|
.weak _Jv_RegisterClasses
|