737346fa24
gcc: * config.gcc (mips-sgi-irix6.5*): Set tmake_file to mips/t-irix6 t-slibgcc-dummy. * config/mips/irix-crti.asm: Move to ../libgcc/config/mips/irix-crti.S. * config/mips/irix-crtn.asm: Move to ../libgcc/config/mips/irix-crtn.S. * config/mips/t-iris: Remove. * config/mips/t-irix6: New file. * config/mips/t-slibgcc-irix: Move to ../libgcc/config/mips. libgcc: * config.host (mips-sgi-irix[56]*): Restrict to mips-sgi-irix6.5*. Set tmake_file, extra_parts. * config/mips/irix-crti.S: Move from ../gcc/config/mips/irix-crti.asm. Remove O32 support. * config/mips/irix-crtn.S: Move from ../gcc/config/mips/irix-crtn.asm. Remove O32 support. * config/mips/t-irix6: New file. * config/mips/t-slibgcc-irix: New file. From-SVN: r174608
72 lines
2.7 KiB
ArmAsm
72 lines
2.7 KiB
ArmAsm
/* Copyright (C) 2004, 2008, 2011 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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.abicalls
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.set noreorder
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.set nomacro
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/* The GNU and SGI linkers differ in their implementation of -init and -fini.
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With the GNU linker, there can only be a single -init option, and the
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linker simply sets DT_INIT to that value. gcc's initialization and
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finalization code can go directly in .init, with the prologue and
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epilogue of the main initialization routine being provided by external
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object files (*crti.o and *crtn.o in this case).
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The SGI linker instead accepts several -init options. It will set DT_INIT
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to a linker-created function (placed in .init) that calls each of the -init
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functions in turn. If there is any user code in .init, this linker-created
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function will be placed after it. Note that such user code is not treated
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specially; it will only be called if the -init options arrange for it to
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be called.
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In theory, the SGI model should allow the crti, crtn and intermediate code
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to go in .init, just like it can with the GNU linker. However, doing this
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seems to confuse the linker and triggers an internal error:
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ld32: FATAL 2 : Internal: at ../../ld/mips_code.c mips_code_fixup()
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text section overflow!
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(seen with MIPSpro 7.30). We therefore put everything in a special
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.gcc_init section instead. */
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.section .gcc_init,"ax",@progbits
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.globl __gcc_init
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__gcc_init:
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daddiu $sp,$sp,-16
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sd $31,0($sp)
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sd $28,8($sp)
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.section .gcc_fini,"ax",@progbits
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.globl __gcc_fini
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__gcc_fini:
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daddiu $sp,$sp,-16
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sd $31,0($sp)
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sd $28,8($sp)
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/* This object will typically be included in the final link for both
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shared libraries and executable, and we need to hide the symbols to
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prevent possible symbol preemption warnings from the SGI linker. */
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.hidden __gcc_init
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.hidden __gcc_fini
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