gzip.s

linux 下的源代码分析阅读器 red hat公司新版

	.file	"gzip.c"

 # rs6000/powerpc options: -msdata=data -G 8
 # GNU C version 2.7-97r2 (powerpc-eabi) compiled by GNU C version 2.7-97r2.
 # options passed:  -O
 # options enabled:  -fdefer-pop -fomit-frame-pointer -fthread-jumps
 # -fpeephole -ffunction-cse -finline -fkeep-static-consts
 # -fpcc-struct-return -fsjlj-exceptions -fcommon -fverbose-asm
 # -fgnu-linker -mpowerpc -mnew-mnemonics -meabi -mcall-sysv -msdata=data

gcc2_compiled.:
	.section ".data"
	.align 2
	.type	 license_msg,@object
license_msg:
	.long .LC0
	.long .LC1
	.long .LC2
	.long .LC3
	.long .LC4
	.long .LC5
	.long .LC6
	.long .LC7
	.long .LC8
	.long .LC9
	.long .LC5
	.long .LC10
	.long .LC11
	.long .LC12
	.long 0
	.section	".rodata"
	.align 2
.LC12:
	.string	"   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA."
	.align 2
.LC11:
	.string	"   along with this program; if not, write to the Free Software"
	.align 2
.LC10:
	.string	"   You should have received a copy of the GNU General Public License"
	.align 2
.LC9:
	.string	"   GNU General Public License for more details."
	.align 2
.LC8:
	.string	"   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the"
	.align 2
.LC7:
	.string	"   but WITHOUT ANY WARRANTY; without even the implied warranty of"
	.align 2
.LC6:
	.string	"   This program is distributed in the hope that it will be useful,"
	.align 2
.LC5:
	.string	""
	.align 2
.LC4:
	.string	"   any later version."
	.align 2
.LC3:
	.string	"   the Free Software Foundation; either version 2, or (at your option)"
	.align 2
.LC2:
	.string	"   it under the terms of the GNU General Public License as published by"
	.align 2
.LC1:
	.string	"   This program is free software; you can redistribute it and/or modify"
	.align 2
.LC0:
	.string	"   Copyright (C) 1992-1993 Jean-loup Gailly"
	.size	 license_msg,60
	.globl ascii
	.section ".sdata","aw"
	.align 2
	.type	 ascii,@object
	.size	 ascii,4
ascii:
	.long 0
	.globl to_stdout
	.align 2
	.type	 to_stdout,@object
	.size	 to_stdout,4
to_stdout:
	.long 0
	.globl decompress
	.align 2
	.type	 decompress,@object
	.size	 decompress,4
decompress:
	.long 0
	.globl force
	.align 2
	.type	 force,@object
	.size	 force,4
force:
	.long 0
	.globl no_name
	.align 2
	.type	 no_name,@object
	.size	 no_name,4
no_name:
	.long -1
	.globl no_time
	.align 2
	.type	 no_time,@object
	.size	 no_time,4
no_time:
	.long -1
	.globl recursive
	.align 2
	.type	 recursive,@object
	.size	 recursive,4
recursive:
	.long 0
	.globl list
	.align 2
	.type	 list,@object
	.size	 list,4
list:
	.long 0
	.globl verbose
	.align 2
	.type	 verbose,@object
	.size	 verbose,4
verbose:
	.long 0
	.globl quiet
	.align 2
	.type	 quiet,@object
	.size	 quiet,4
quiet:
	.long 0
	.globl do_lzw
	.align 2
	.type	 do_lzw,@object
	.size	 do_lzw,4
do_lzw:
	.long 0
	.globl test
	.align 2
	.type	 test,@object
	.size	 test,4
test:
	.long 0
	.globl maxbits
	.align 2
	.type	 maxbits,@object
	.size	 maxbits,4
maxbits:
	.long 16
	.globl method
	.align 2
	.type	 method,@object
	.size	 method,4
method:
	.long 8
	.globl level
	.align 2
	.type	 level,@object
	.size	 level,4
level:
	.long 6
	.globl exit_code
	.align 2
	.type	 exit_code,@object
	.size	 exit_code,4
exit_code:
	.long 0
	.globl args
	.align 2
	.type	 args,@object
	.size	 args,4
args:
	.long 0
	.globl total_in
	.align 2
	.type	 total_in,@object
	.size	 total_in,4
total_in:
	.long 0
	.globl total_out
	.align 2
	.type	 total_out,@object
	.size	 total_out,4
total_out:
	.long 0
	.globl remove_ofname
	.align 2
	.type	 remove_ofname,@object
	.size	 remove_ofname,4
remove_ofname:
	.long 0
	.globl longopts
	.section ".data"
	.align 2
	.type	 longopts,@object
longopts:
	.long .LC13
	.long 0
	.long 0
	.long 97
	.long .LC14
	.long 0
	.long 0
	.long 99
	.long .LC15
	.long 0
	.long 0
	.long 99
	.long .LC16
	.long 0
	.long 0
	.long 100
	.long .LC17
	.long 0
	.long 0
	.long 100
	.long .LC18
	.long 0
	.long 0
	.long 102
	.long .LC19
	.long 0
	.long 0
	.long 104
	.long .LC20
	.long 0
	.long 0
	.long 108
	.long .LC21
	.long 0
	.long 0
	.long 76
	.long .LC22
	.long 0
	.long 0
	.long 110
	.long .LC23
	.long 0
	.long 0
	.long 78
	.long .LC24
	.long 0
	.long 0
	.long 113
	.long .LC25
	.long 0
	.long 0
	.long 113
	.long .LC26
	.long 0
	.long 0
	.long 114
	.long .LC27
	.long 1
	.long 0
	.long 83
	.long .LC28
	.long 0
	.long 0
	.long 116
	.long .LC29
	.long 0
	.long 0
	.long 84
	.long .LC30
	.long 0
	.long 0
	.long 118
	.long .LC31
	.long 0
	.long 0
	.long 86
	.long .LC32
	.long 0
	.long 0
	.long 49
	.long .LC33
	.long 0
	.long 0
	.long 57
	.long .LC34
	.long 0
	.long 0
	.long 90
	.long .LC35
	.long 1
	.long 0
	.long 98
	.long 0
	.long 0
	.long 0
	.long 0
	.section	".rodata"
	.align 2
.LC35:
	.string	"bits"
	.align 2
.LC34:
	.string	"lzw"
	.align 2
.LC33:
	.string	"best"
	.align 2
.LC32:
	.string	"fast"
	.align 2
.LC31:
	.string	"version"
	.align 2
.LC30:
	.string	"verbose"
	.align 2
.LC29:
	.string	"no-time"
	.align 2
.LC28:
	.string	"test"
	.align 2
.LC27:
	.string	"suffix"
	.align 2
.LC26:
	.string	"recursive"
	.align 2
.LC25:
	.string	"silent"
	.align 2
.LC24:
	.string	"quiet"
	.align 2
.LC23:
	.string	"name"
	.align 2
.LC22:
	.string	"no-name"
	.align 2
.LC21:
	.string	"license"
	.align 2
.LC20:
	.string	"list"
	.align 2
.LC19:
	.string	"help"
	.align 2
.LC18:
	.string	"force"
	.align 2
.LC17:
	.string	"uncompress"
	.align 2
.LC16:
	.string	"decompress"
	.align 2
.LC15:
	.string	"stdout"
	.align 2
.LC14:
	.string	"to-stdout"
	.align 2
.LC13:
	.string	"ascii"
	.size	 longopts,384
	.globl work
	.section ".sdata","aw"
	.align 2
	.type	 work,@object
	.size	 work,4
work:
	.long zip
	.section	".rodata"
	.align 2
.LC36:
	.string	"usage: %s [-%scdfhlLnN%stvV19] [-S suffix] [file ...]\n"
	.section ".text"
	.align 2
	.type	 usage,@function
usage:
	stwu 1,-8(1)
	mflr 0
	stw 0,12(1)
	addis 9,0,_impure_ptr@ha
	lwz 9,_impure_ptr@l(9)
	addis 11,0,progname@ha
	lwz 3,12(9)
	addis 4,0,.LC36@ha
	addi 4,4,.LC36@l
	lwz 5,progname@l(11)
	addis 6,0,.LC5@ha
	addi 6,6,.LC5@l
	mr 7,6
	crxor 6,6,6
	bl fprintf
	lwz 0,12(1)
	mtlr 0
	addi 1,1,8
	blr
.Lfe1:
	.size	 usage,.Lfe1-usage
	.section ".data"
	.align 2
	.type	 help_msg.4,@object
help_msg.4:
	.long .LC37
	.long .LC38
	.long .LC39
	.long .LC40
	.long .LC41
	.long .LC42
	.long .LC43
	.long .LC44
	.long .LC45
	.long .LC46
	.long .LC47
	.long .LC48
	.long .LC49
	.long .LC50
	.long .LC51
	.long .LC52
	.long 0
	.section	".rodata"
	.align 2
.LC52:
	.string	" file...          files to (de)compress. If none given, use standard input."
	.align 2
.LC51:
	.string	" -9 --best        compress better"
	.align 2
.LC50:
	.string	" -1 --fast        compress faster"
	.align 2
.LC49:
	.string	" -V --version     display version number"
	.align 2
.LC48:
	.string	" -v --verbose     verbose mode"
	.align 2
.LC47:
	.string	" -t --test        test compressed file integrity"
	.align 2
.LC46:
	.string	" -S .suf  --suffix .suf     use suffix .suf on compressed files"
	.align 2
.LC45:
	.string	" -q --quiet       suppress all warnings"
	.align 2
.LC44:
	.string	" -N --name        save or restore the original name and time stamp"
	.align 2
.LC43:
	.string	" -n --no-name     do not save or restore the original name and time stamp"
	.align 2
.LC42:
	.string	" -L --license     display software license"
	.align 2
.LC41:
	.string	" -l --list        list compressed file contents"
	.align 2
.LC40:
	.string	" -h --help        give this help"
	.align 2
.LC39:
	.string	" -f --force       force overwrite of output file and compress links"
	.align 2
.LC38:
	.string	" -d --decompress  decompress"
	.align 2
.LC37:
	.string	" -c --stdout      write on standard output, keep original files unchanged"
	.align 2
.LC53:
	.string	"%s %s (%s)\n"
	.align 2
.LC54:
	.string	"1.2.4"
	.align 2
.LC55:
	.string	"18 Aug 93"
	.align 2
.LC56:
	.string	"%s\n"
	.section ".text"
	.align 2
	.type	 help,@function
help:
	stwu 1,-24(1)
	mflr 0
	stw 29,12(1)
	stw 30,16(1)
	stw 31,20(1)
	stw 0,28(1)
	addis 29,0,help_msg.4@ha
	addi 31,29,help_msg.4@l
	addis 9,0,_impure_ptr@ha
	lwz 9,_impure_ptr@l(9)
	addis 11,0,progname@ha
	lwz 3,12(9)
	addis 4,0,.LC53@ha
	addi 4,4,.LC53@l
	lwz 5,progname@l(11)
	addis 6,0,.LC54@ha
	addi 6,6,.LC54@l
	addis 7,0,.LC55@ha
	addi 7,7,.LC55@l
	crxor 6,6,6
	bl fprintf
	bl usage
	lwz 0,help_msg.4@l(29)
	cmpwi 1,0,0
	bc 12,6,.L4
	addis 30,0,_impure_ptr@ha
	addis 29,0,.LC56@ha
.L5:
	lwz 9,_impure_ptr@l(30)
	lwz 3,12(9)
	addi 4,29,.LC56@l
	lwz 5,0(31)
	crxor 6,6,6
	bl fprintf
	lwzu 0,4(31)
	cmpwi 1,0,0
	bc 4,6,.L5
.L4:
	lwz 0,28(1)
	mtlr 0
	lwz 29,12(1)
	lwz 30,16(1)
	lwz 31,20(1)
	addi 1,1,24
	blr
.Lfe2:
	.size	 help,.Lfe2-help
	.align 2
	.type	 license,@function
license:
	stwu 1,-24(1)
	mflr 0
	stw 29,12(1)
	stw 30,16(1)
	stw 31,20(1)
	stw 0,28(1)
	addis 29,0,license_msg@ha
	addi 31,29,license_msg@l
	addis 9,0,_impure_ptr@ha
	lwz 9,_impure_ptr@l(9)
	addis 11,0,progname@ha
	lwz 3,12(9)
	addis 4,0,.LC53@ha
	addi 4,4,.LC53@l
	lwz 5,progname@l(11)
	addis 6,0,.LC54@ha
	addi 6,6,.LC54@l
	addis 7,0,.LC55@ha
	addi 7,7,.LC55@l
	crxor 6,6,6
	bl fprintf
	lwz 0,license_msg@l(29)
	cmpwi 1,0,0
	bc 12,6,.L9
	addis 30,0,_impure_ptr@ha
	addis 29,0,.LC56@ha
.L10:
	lwz 9,_impure_ptr@l(30)
	lwz 3,12(9)
	addi 4,29,.LC56@l
	lwz 5,0(31)
	crxor 6,6,6
	bl fprintf
	lwzu 0,4(31)
	cmpwi 1,0,0
	bc 4,6,.L10
.L9:
	lwz 0,28(1)
	mtlr 0
	lwz 29,12(1)
	lwz 30,16(1)
	lwz 31,20(1)
	addi 1,1,24
	blr
.Lfe3:
	.size	 license,.Lfe3-license
	.section	".rodata"
	.align 2
.LC57:
	.string	"Compilation options:\n%s %s "
	.align 2
.LC58:
	.string	"NO_DIR"
	.align 2
.LC59:
	.string	"HAVE_UNISTD_H "
	.align 2
.LC60:
	.string	"NO_MEMORY_H "
	.align 2
.LC61:
	.string	"\n"
	.section ".text"
	.align 2
	.type	 version,@function
version:
	stwu 1,-24(1)
	mflr 0
	stw 29,12(1)
	stw 30,16(1)
	stw 31,20(1)
	stw 0,28(1)
	addis 29,0,_impure_ptr@ha
	lwz 9,_impure_ptr@l(29)
	addis 11,0,progname@ha
	lwz 3,12(9)
	addis 4,0,.LC53@ha
	addi 4,4,.LC53@l
	lwz 5,progname@l(11)
	addis 6,0,.LC54@ha
	addi 6,6,.LC54@l
	addis 7,0,.LC55@ha
	addi 7,7,.LC55@l
	crxor 6,6,6
	bl fprintf
	lwz 9,_impure_ptr@l(29)
	lwz 3,12(9)
	addis 4,0,.LC57@ha
	addi 4,4,.LC57@l
	addis 5,0,.LC58@ha
	addi 5,5,.LC58@l
	addis 6,0,.LC5@ha
	addi 6,6,.LC5@l
	crxor 6,6,6
	bl fprintf
	lwz 9,_impure_ptr@l(29)
	lwz 3,12(9)
	addis 4,0,.LC59@ha
	addi 4,4,.LC59@l
	crxor 6,6,6
	bl fprintf
	lwz 9,_impure_ptr@l(29)
	lwz 3,12(9)
	addis 4,0,.LC60@ha
	addi 4,4,.LC60@l
	crxor 6,6,6
	bl fprintf
	lwz 9,_impure_ptr@l(29)
	lwz 3,12(9)
	addis 4,0,.LC61@ha
	addi 4,4,.LC61@l
	crxor 6,6,6
	bl fprintf
	lwz 0,28(1)
	mtlr 0
	lwz 29,12(1)
	lwz 30,16(1)
	lwz 31,20(1)
	addi 1,1,24
	blr
.Lfe4:
	.size	 version,.Lfe4-version
	.section	".rodata"
	.align 2
.LC62:
	.string	".exe"
	.align 2
.LC63:
	.string	"GZIP"
	.align 2
.LC64:
	.string	"un"
	.align 2
.LC65:
	.string	"gun"
	.align 2
.LC66:
	.string	"cat"
	.align 2
.LC67:
	.string	"gzcat"
	.align 2
.LC68:
	.string	".gz"
	.align 2
.LC69:
	.string	"ab:cdfhH?lLmMnNqrS:tvVZ123456789"
	.align 2
.LC70:
	.string	"%s: -r not supported on this system\n"
	.align 2
.LC71:
	.string	"%s: -Z not supported in this version\n"
	.align 2
.LC72:
	.string	"%s: option --ascii ignored on this system\n"
	.align 2
.LC73:
	.string	"%s: incorrect suffix '%s'\n"
	.section ".text"
	.align 2
	.globl main
	.type	 main,@function
main:
	stwu 1,-80(1)
	mflr 0
	stw 18,24(1)
	stw 19,28(1)
	stw 20,32(1)
	stw 21,36(1)
	stw 22,40(1)
	stw 23,44(1)
	stw 24,48(1)
	stw 25,52(1)
	stw 26,56(1)
	stw 27,60(1)
	stw 28,64(1)
	stw 29,68(1)
	stw 30,72(1)
	stw 31,76(1)
	stw 3,16(1)
	stw 4,12(1)
	stw 0,84(1)
	bl __eabi
	lwz 3,16(1)
	lwz 4,12(1)
	stw 3,8(1)
	stw 4,12(1)
	lwz 3,0(4)
	bl basename
	addis 28,0,progname@ha
	stw 3,progname@l(28)
	bl strlen
	mr 29,3
	cmpwi 1,29,4
	bc 4,5,.L14
	lwz 3,progname@l(28)
	add 3,29,3
	addi 3,3,-4
	addis 4,0,.LC62@ha
	addi 4,4,.LC62@l
	bl strcmp
	mr. 3,3
	bc 4,2,.L14
	lwz 9,progname@l(28)
	add 9,29,9
	stb 3,-4(9)
.L14:
	addi 3,1,8
	addi 4,1,12
	addis 5,0,.LC63@ha
	addi 5,5,.LC63@l
	bl add_envopt
	addis 9,0,env@ha
	stw 3,env@l(9)
	cmpwi 1,3,0
	bc 12,6,.L15
	addis 9,0,args@ha
	lwz 0,12(1)
	stw 0,args@l(9)
.L15:
	addis 29,0,foreground@ha
	li 3,2
	li 4,1
	bl signal
	xori 3,3,1
	addic 0,3,-1
	subfe 3,0,3
	stw 3,foreground@l(29)
	cmpwi 1,3,0
	bc 12,6,.L16
	li 3,2
	addis 4,0,abort_gzip@ha
	addi 4,4,abort_gzip@l
	bl signal
.L16:
	li 3,15
	li 4,1
	bl signal
	cmpwi 1,3,1
	bc 12,6,.L17
	li 3,15
	addis 4,0,abort_gzip@ha
	addi 4,4,abort_gzip@l
	bl signal
.L17:
	li 3,1
	mr 4,3
	bl signal
	cmpwi 1,3,1
	bc 12,6,.L18
	li 3,1
	addis 4,0,abort_gzip@ha
	addi 4,4,abort_gzip@l
	bl signal
.L18:
	addis 29,0,progname@ha
	lwz 3,progname@l(29)
	addis 4,0,.LC64@ha
	addi 4,4,.LC64@l
	li 5,2
	bl strncmp
	cmpwi 1,3,0
	bc 12,6,.L20
	lwz 3,progname@l(29)
	addis 4,0,.LC65@ha
	addi 4,4,.LC65@l
	li 5,3
	bl strncmp
	cmpwi 1,3,0
	bc 4,6,.L19
.L20:
	addis 9,0,decompress@ha
	li 0,1
	stw 0,decompress@l(9)
	b .L21
.L19:
	addis 29,0,progname@ha
	lwz 3,progname@l(29)
	addi 3,3,1
	addis 4,0,.LC66@ha
	addi 4,4,.LC66@l
	bl strcmp
	cmpwi 1,3,0
	bc 12,6,.L23
	lwz 3,progname@l(29)
	addis 4,0,.LC67@ha
	addi 4,4,.LC67@l
	bl strcmp
	cmpwi 1,3,0
	bc 4,6,.L21
.L23:
	addis 11,0,decompress@ha
	addis 9,0,to_stdout@ha
	li 0,1
	stw 0,to_stdout@l(9)
	stw 0,decompress@l(11)
.L21:
	addis 28,0,z_suffix@ha
	addi 3,28,z_suffix@l
	addis 4,0,.LC68@ha
	addi 4,4,.LC68@l
	li 5,30
	bl strncpy
	addis 29,0,z_len@ha
	addi 3,28,z_suffix@l
	bl strlen