Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/mips/irix-crti.asm @ 55:77e2b8dfacca gcc-4.4.5
update it from 4.4.3 to 4.5.0
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Fri, 12 Feb 2010 23:39:51 +0900 |
| parents | a06113de4d67 |
| children |
| rev | line source |
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77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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1 /* Copyright (C) 2004, 2008 Free Software Foundation, Inc. |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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2 |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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3 This file is part of GCC. |
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4 |
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77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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5 GCC is free software; you can redistribute it and/or modify it under |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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6 the terms of the GNU General Public License as published by the Free |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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7 Software Foundation; either version 3, or (at your option) any later |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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8 version. |
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77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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9 |
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77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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10 GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
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77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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11 WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 for more details. |
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14 |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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15 Under Section 7 of GPL version 3, you are granted additional |
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77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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16 permissions described in the GCC Runtime Library Exception, version |
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77e2b8dfacca
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17 3.1, as published by the Free Software Foundation. |
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18 |
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parents:
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19 You should have received a copy of the GNU General Public License and |
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20 a copy of the GCC Runtime Library Exception along with this program; |
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21 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
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22 <http://www.gnu.org/licenses/>. */ |
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23 |
| 0 | 24 .abicalls |
| 25 .set noreorder | |
| 26 .set nomacro | |
| 27 | |
| 28 /* The GNU and SGI linkers differ in their implementation of -init and -fini. | |
| 29 With the GNU linker, there can only be a single -init option, and the | |
| 30 linker simply sets DT_INIT to that value. gcc's initialization and | |
| 31 finalization code can go directly in .init, with the prologue and | |
| 32 epilogue of the main initialization routine being provided by external | |
| 33 object files (*crti.o and *crtn.o in this case). | |
| 34 | |
| 35 The SGI linker instead accepts several -init options. It will set DT_INIT | |
| 36 to a linker-created function (placed in .init) that calls each of the -init | |
| 37 functions in turn. If there is any user code in .init, this linker-created | |
| 38 function will be placed after it. Note that such user code is not treated | |
| 39 specially; it will only be called if the -init options arrange for it to | |
| 40 be called. | |
| 41 | |
| 42 In theory, the SGI model should allow the crti, crtn and intermediate code | |
| 43 to go in .init, just like it can with the GNU linker. However, doing this | |
| 44 seems to confuse the linker and triggers an internal error: | |
| 45 | |
| 46 ld32: FATAL 2 : Internal: at ../../ld/mips_code.c mips_code_fixup() | |
| 47 text section overflow! | |
| 48 | |
| 49 (seen with MIPSpro 7.30). We therefore put everything in a special | |
| 50 .gcc_init section instead. */ | |
| 51 | |
| 52 .section .gcc_init,"ax",@progbits | |
| 53 .globl __gcc_init | |
| 54 __gcc_init: | |
| 55 #if _MIPS_SIM == _ABIO32 | |
| 56 addiu $sp,$sp,-16 | |
| 57 sw $31,0($sp) | |
| 58 #else | |
| 59 daddiu $sp,$sp,-16 | |
| 60 sd $31,0($sp) | |
| 61 sd $28,8($sp) | |
| 62 #endif | |
| 63 | |
| 64 .section .gcc_fini,"ax",@progbits | |
| 65 .globl __gcc_fini | |
| 66 __gcc_fini: | |
| 67 #if _MIPS_SIM == _ABIO32 | |
| 68 addiu $sp,$sp,-16 | |
| 69 sw $31,0($sp) | |
| 70 #else | |
| 71 daddiu $sp,$sp,-16 | |
| 72 sd $31,0($sp) | |
| 73 sd $28,8($sp) | |
| 74 #endif | |
| 75 | |
| 76 /* This object will typically be included in the final link for both | |
| 77 shared libraries and executable, and we need to hide the symbols to | |
| 78 prevent possible symbol preemption warnings from the SGI linker. */ | |
| 79 .hidden __gcc_init | |
| 80 .hidden __gcc_fini | |
| 81 |