109 lines
3.0 KiB
NASM
109 lines
3.0 KiB
NASM
# Copyright (C) 1996 Free Software Foundation, Inc.
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# Contributed by Richard Henderson (rth@tamu.edu)
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#
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# This file is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2, or (at your option) any
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# later version.
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#
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# In addition to the permissions in the GNU General Public License, the
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# Free Software Foundation gives you unlimited permission to link the
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# compiled version of this file with other programs, and to distribute
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# those programs without any restriction coming from the use of this
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# file. (The General Public License restrictions do apply in other
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# respects; for example, they cover modification of the file, and
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# distribution when not linked into another program.)
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#
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# This file is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; see the file COPYING. If not, write to
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# the Free Software Foundation, 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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#
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# As a special exception, if you link this library with files
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# compiled with GCC to produce an executable, this does not cause
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# the resulting executable to be covered by the GNU General Public License.
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# This exception does not however invalidate any other reasons why
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# the executable file might be covered by the GNU General Public License.
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#
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# Tails of the constructor/destructor lists.
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#
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# The __*TOR_END__ symbols are not global because when this file is used
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# in a shared library, we do not want the symbol to fall over to the
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# application's lists.
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.section .ctors,"aw"
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.align 3
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__CTOR_END__:
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.quad 0
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.section .dtors,"aw"
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.align 3
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__DTOR_END__:
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.quad 0
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.section .eh_frame,"aw"
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__FRAME_END__:
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.quad 0
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#
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# Fragment of the ELF _init routine that invokes our ctor startup
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#
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.section .init,"ax"
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# Since the bits of the _init function are spread across many
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# object files, each potentially with its own GP, we must
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# assume we need to load ours. Further, our .init section
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# can easily be more than 4MB away from our .text bits so we
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# can't use bsr.
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br $29,1f
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1: ldgp $29,0($29)
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jsr $26,__do_global_ctors_aux
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# Must match the alignment we got from crti.o else we get
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# zero-filled holes in our _init function and thense SIGILL.
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.align 3
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#
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# Invoke our destructors in order.
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#
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.text
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.align 3
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.ent __do_global_ctors_aux
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__do_global_ctors_aux:
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ldgp $29,0($27)
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lda $30,-16($30)
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.frame $30,16,$26,0
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stq $9,8($30)
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stq $26,0($30)
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.mask 0x4000200,-16
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.prologue 1
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lda $9,__CTOR_END__
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br 1f
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0: jsr $26,($27)
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1: ldq $27,-8($9)
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subq $9,8,$9
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not $27,$0
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bne $0,0b
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ldq $26,0($30)
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ldq $9,8($30)
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lda $30,16($30)
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ret
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.end __do_global_ctors_aux
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