Re: gcc 4.5.1 / as 2.20.51.0.11 miscompiling drivers/char/i8k.c ?

From: Jim Bos
Date: Mon Nov 15 2010 - 13:30:52 EST

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In reply to: Linus Torvalds: "Re: gcc 4.5.1 / as 2.20.51.0.11 miscompiling drivers/char/i8k.c ?"
Next in thread: Jim Bos: "Re: gcc 4.5.1 / as 2.20.51.0.11 miscompiling drivers/char/i8k.c ?"
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On 11/15/2010 07:08 PM, Linus Torvalds wrote:
> On Mon, Nov 15, 2010 at 9:40 AM, Jim Bos <jim876@xxxxxxxxx> wrote:
>>
>> Hmm, that doesn't work.
>>
>> [ Not sure if you read to whole thread but initial workaround was to
>> change the asm(..) to asm volatile(..) which did work. ]
>
> Since I have a different gcc than yours (and I'm not going to compile
> my own), have you posted your broken .s file anywhere? In fact, with
> the noinline (and the removal of the "+m" thing - iow just the patch
> you tried), what does just the "i8k_smm" function assembly look like
> for you after you've done a "make drivers/char/i8k.s"?
>
> If the asm just doesn't exist AT ALL, that's just odd. Because every
> single call-site of i8k_smm() clearly looks at the return value. So
> the volatile really shouldn't make any difference from that
> standpoint. Odd.
>
> Linus
>

Attached version with plain 2.6.36 source and version with the committed
patch, i.e with the '"+m" (*regs)'

_
Jim

.file "i8k.c"
# GNU C (GCC) version 4.5.1 (i486-slackware-linux)
# compiled by GNU C version 4.5.1, GMP version 5.0.1, MPFR version 2.4.2-p3, MPC version 0.8.2
# GGC heuristics: --param ggc-min-expand=81 --param ggc-min-heapsize=96817
# options passed: -nostdinc -I/usr/src/linux-2.6.36/arch/x86/include
# -Iinclude -D__KERNEL__ -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1
# -DCONFIG_AS_CFI_SECTIONS=1 -DMODULE -DKBUILD_STR(s)=#s
# -DKBUILD_BASENAME=KBUILD_STR(i8k) -DKBUILD_MODNAME=KBUILD_STR(i8k)
# -isystem /usr/lib/gcc/i486-slackware-linux/4.5.1/include -include
# include/generated/autoconf.h -MD drivers/char/.i8k.s.d drivers/char/i8k.c
# -m32 -msoft-float -mregparm=3 -mpreferred-stack-boundary=2 -march=i686
# -mtune=pentium3 -mtune=generic -mno-sse -mno-mmx -mno-sse2 -mno-3dnow
# -auxbase-strip drivers/char/i8k.s -Os -Wall -Wundef -Wstrict-prototypes
# -Wno-trigraphs -Werror-implicit-function-declaration -Wno-format-security
# -Wno-sign-compare -Wframe-larger-than=1024 -Wdeclaration-after-statement
# -Wno-pointer-sign -fno-strict-aliasing -fno-common
# -fno-delete-null-pointer-checks -freg-struct-return -ffreestanding
# -fno-asynchronous-unwind-tables -fno-stack-protector -fomit-frame-pointer
# -fno-strict-overflow -fconserve-stack -fverbose-asm
# options enabled: -falign-loops -fargument-alias -fauto-inc-dec
# -fbranch-count-reg -fcaller-saves -fcprop-registers -fcrossjumping
# -fcse-follow-jumps -fdefer-pop -fdwarf2-cfi-asm -fearly-inlining
# -feliminate-unused-debug-types -fexpensive-optimizations
# -fforward-propagate -ffunction-cse -fgcse -fgcse-lm
# -fguess-branch-probability -fident -fif-conversion -fif-conversion2
# -findirect-inlining -finline -finline-functions
# -finline-functions-called-once -finline-small-functions -fipa-cp
# -fipa-pure-const -fipa-reference -fipa-sra -fira-share-save-slots
# -fira-share-spill-slots -fivopts -fkeep-static-consts
# -fleading-underscore -fmath-errno -fmerge-constants -fmerge-debug-strings
# -fmove-loop-invariants -fomit-frame-pointer -foptimize-register-move
# -foptimize-sibling-calls -fpeephole -fpeephole2 -freg-struct-return
# -fregmove -freorder-blocks -freorder-functions -frerun-cse-after-loop
# -fsched-critical-path-heuristic -fsched-dep-count-heuristic
# -fsched-group-heuristic -fsched-interblock -fsched-last-insn-heuristic
# -fsched-rank-heuristic -fsched-spec -fsched-spec-insn-heuristic
# -fsched-stalled-insns-dep -fschedule-insns2 -fshow-column -fsigned-zeros
# -fsplit-ivs-in-unroller -fsplit-wide-types -fthread-jumps
# -ftoplevel-reorder -ftrapping-math -ftree-builtin-call-dce -ftree-ccp
# -ftree-ch -ftree-copy-prop -ftree-copyrename -ftree-cselim -ftree-dce
# -ftree-dominator-opts -ftree-dse -ftree-forwprop -ftree-fre
# -ftree-loop-im -ftree-loop-ivcanon -ftree-loop-optimize
# -ftree-parallelize-loops= -ftree-phiprop -ftree-pre -ftree-pta
# -ftree-reassoc -ftree-scev-cprop -ftree-sink -ftree-slp-vectorize
# -ftree-sra -ftree-switch-conversion -ftree-ter -ftree-vect-loop-version
# -ftree-vrp -funit-at-a-time -fvect-cost-model -fverbose-asm
# -fzero-initialized-in-bss -m32 -m96bit-long-double -malign-stringops
# -mfused-madd -mglibc -mieee-fp -mno-fancy-math-387 -mno-red-zone
# -mno-sse4 -mpush-args -msahf -mtls-direct-seg-refs

# Compiler executable checksum: 7ba2dc3c015559b9d16b297ee7f8d354

.text
.type i8k_smm, @function
i8k_smm:
pushl %ebp #
movl %eax, %ebp # regs, regs
pushl %edi #
pushl %esi #
pushl %ebx #
subl $8, %esp #,
movl (%eax), %eax # regs_2(D)->eax,
movl %eax, 4(%esp) #, %sfp
movl %ebp, %eax # regs,
#APP
# 148 "drivers/char/i8k.c" 1
pushl %eax
movl 0(%eax),%edx
push %edx
movl 4(%eax),%ebx
movl 8(%eax),%ecx
movl 12(%eax),%edx
movl 16(%eax),%esi
movl 20(%eax),%edi
popl %eax
out %al,$0xb2
out %al,$0x84
xchgl %eax,(%esp)
movl %ebx,4(%eax)
movl %ecx,8(%eax)
movl %edx,12(%eax)
movl %esi,16(%eax)
movl %edi,20(%eax)
popl %edx
movl %edx,0(%eax)
lahf
shrl $8,%eax
andl $1,%eax

# 0 "" 2
#NO_APP
testl %eax, %eax #
movl $-22, %edx #, D.15130
movl %eax, (%esp) #, %sfp
jne .L2 #,
movl 0(%ebp), %ecx # regs_2(D)->eax, D.15123
cmpw $-1, %cx #, D.15123
je .L2 #,
cmpl 4(%esp), %ecx # %sfp, D.15123
cmovne %eax, %edx #,, D.15130
.L2:
addl $8, %esp #,
movl %edx, %eax # D.15130,
popl %ebx #
popl %esi #
popl %edi #
popl %ebp #
ret
.size i8k_smm, .-i8k_smm
.type i8k_get_bios_version, @function
i8k_get_bios_version:
pushl %edi #
xorl %eax, %eax # tmp61
subl $24, %esp #,
movl $6, %ecx #, tmp62
movl %esp, %edi #, tmp60
rep stosl
movl %esp, %eax #, tmp63
movl $166, (%esp) #, regs.eax
call i8k_smm #
movl $166, %edx #, tmp65
testl %eax, %eax # D.15225
cmove %edx, %eax # D.15225,, tmp65, D.15225
addl $24, %esp #,
popl %edi #
ret
.size i8k_get_bios_version, .-i8k_get_bios_version
.type i8k_get_fn_status, @function
i8k_get_fn_status:
pushl %edi #
movl $6, %ecx #, tmp63
pushl %ebx #
xorl %ebx, %ebx # tmp62
subl $24, %esp #,
movl %ebx, %eax # tmp62,
movl %esp, %edi #, tmp61
rep stosl
movl %esp, %eax #, tmp64
movl $37, (%esp) #, regs.eax
call i8k_smm #
testl %eax, %eax # rc
cmovg %ebx, %eax # rc,, tmp62, tmp65
addl $24, %esp #,
popl %ebx #
popl %edi #
ret
.size i8k_get_fn_status, .-i8k_get_fn_status
.type i8k_get_power_status, @function
i8k_get_power_status:
pushl %edi #
movl $6, %ecx #, tmp63
pushl %ebx #
xorl %ebx, %ebx # tmp62
subl $24, %esp #,
movl %ebx, %eax # tmp62,
movl %esp, %edi #, tmp61
rep stosl
movl %esp, %eax #, tmp64
movl $105, (%esp) #, regs.eax
call i8k_smm #
testl %eax, %eax # rc
cmovg %ebx, %eax # rc,, tmp62, tmp65
addl $24, %esp #,
popl %ebx #
popl %edi #
ret
.size i8k_get_power_status, .-i8k_get_power_status
.type i8k_get_fan_status, @function
i8k_get_fan_status:
pushl %edi #
movl %eax, %edx # fan, fan
subl $24, %esp #,
xorl %eax, %eax # tmp64
movl %esp, %edi #, tmp63
movl $6, %ecx #, tmp65
rep stosl
andl $255, %edx #, tmp66
movl %esp, %eax #, tmp67
movl %edx, 4(%esp) # tmp66, regs.ebx
movl $163, (%esp) #, regs.eax
call i8k_smm #
movl $163, %edx #, tmp69
testl %eax, %eax # D.15134
cmove %edx, %eax # D.15134,, tmp69, D.15134
addl $24, %esp #,
popl %edi #
ret
.size i8k_get_fan_status, .-i8k_get_fan_status
.type i8k_get_fan_speed, @function
i8k_get_fan_speed:
pushl %edi #
movl %eax, %edx # fan, fan
subl $24, %esp #,
xorl %eax, %eax # tmp67
movl %esp, %edi #, tmp66
movl $6, %ecx #, tmp68
rep stosl
andl $255, %edx #, tmp69
movl %esp, %eax #, tmp70
movl $675, (%esp) #, regs.eax
movl %edx, 4(%esp) # tmp69, regs.ebx
call i8k_smm #
testl %eax, %eax # D.15145
jne .L13 #,
imull $675, fan_mult, %eax #, fan_mult, D.15145
.L13:
addl $24, %esp #,
popl %edi #
ret
.size i8k_get_fan_speed, .-i8k_get_fan_speed
.type i8k_get_dell_signature, @function
i8k_get_dell_signature:
pushl %edi #
movl %eax, %edx # req_fn, req_fn
subl $24, %esp #,
xorl %eax, %eax # tmp63
movl %esp, %edi #, tmp62
movl $6, %ecx #, tmp64
rep stosl
movl %esp, %eax #, tmp65
movl %edx, (%esp) # req_fn, regs.eax
call i8k_smm #
movl $-1, %edx #, tmp67
testl %eax, %eax # rc
cmovns %edx, %eax # rc,, tmp67, rc
addl $24, %esp #,
popl %edi #
ret
.size i8k_get_dell_signature, .-i8k_get_dell_signature
.type i8k_open_fs, @function
i8k_open_fs:
movl %edx, %eax # file, file
xorl %ecx, %ecx #
movl $i8k_proc_show, %edx #,
jmp single_open #
.size i8k_open_fs, .-i8k_open_fs
.section .rodata.str1.1,"aMS",@progbits,1
.LC0:
.string "?"
.text
.type i8k_get_dmi_data, @function
i8k_get_dmi_data:
call dmi_get_system_info #
testl %eax, %eax # dmi_data
je .L20 #,
cmpb $0, (%eax) #,* dmi_data
movl $.LC0, %edx #, tmp63
cmove %edx, %eax # dmi_data,, tmp63, dmi_data
ret
.L20:
movl $.LC0, %eax #, dmi_data
ret
.size i8k_get_dmi_data, .-i8k_get_dmi_data
.type i8k_get_temp.clone.1, @function
i8k_get_temp.clone.1:
pushl %edi #
xorl %eax, %eax # tmp61
subl $24, %esp #,
movl $6, %ecx #, tmp62
movl %esp, %edi #, tmp60
rep stosl
movl %esp, %eax #, tmp63
movl $4259, (%esp) #, regs.eax
call i8k_smm #
testl %eax, %eax # rc
js .L22 #,
movl prev.12857, %eax # prev, rc
movl $127, prev.12857 #, prev
.L22:
addl $24, %esp #,
popl %edi #
ret
.size i8k_get_temp.clone.1, .-i8k_get_temp.clone.1
.section .rodata.str1.1
.LC1:
.string "1.0"
.LC2:
.string "%s %s %s %d %d %d %d %d %d %d\n"
.text
.type i8k_proc_show, @function
i8k_proc_show:
pushl %ebp #
pushl %edi #
pushl %esi #
pushl %ebx #
orl $-1, %ebx #, ac_power
subl $16, %esp #,
movl %eax, 12(%esp) # seq, %sfp
call i8k_get_temp.clone.1 #
movl %eax, (%esp) #, %sfp
movl $1, %eax #,
call i8k_get_fan_status #
movl %eax, 4(%esp) #, %sfp
xorl %eax, %eax #
call i8k_get_fan_status #
movl %eax, %esi #, right_fan
movl $1, %eax #,
call i8k_get_fan_speed #
movl %eax, %edi #, left_speed
xorl %eax, %eax #
call i8k_get_fan_speed #
movl %eax, %ebp #, right_speed
call i8k_get_fn_status #
cmpl $0, power_status #, power_status
movl %eax, 8(%esp) #, %sfp
je .L24 #,
call i8k_get_power_status #
movl %eax, %ebx #, ac_power
.L24:
movl $7, %eax #,
call i8k_get_dmi_data #
pushl 8(%esp) # %sfp
pushl %ebx # ac_power
pushl %ebp # right_speed
pushl %edi # left_speed
pushl %esi # right_fan
pushl 24(%esp) # %sfp
pushl 24(%esp) # %sfp
pushl %eax # D.15110
pushl $bios_version #
pushl $.LC1 #
pushl $.LC2 #
pushl 56(%esp) # %sfp
call seq_printf #
addl $64, %esp #,
popl %ebx #
popl %esi #
popl %edi #
popl %ebp #
ret
.size i8k_proc_show, .-i8k_proc_show
.type copy_from_user.clone.2, @function
copy_from_user.clone.2:
movl $4, %ecx #,
jmp _copy_from_user #
.size copy_from_user.clone.2, .-copy_from_user.clone.2
.type i8k_ioctl, @function
i8k_ioctl:
pushl %ebp #
movl %edx, %ebp # cmd, cmd
pushl %edi #
pushl %esi #
movl $-22, %esi #, ret
pushl %ebx #
movl %ecx, %ebx # arg, arg
subl $48, %esp #,
testl %ecx, %ecx # arg
movl $0, 44(%esp) #, val
je .L28 #,
cmpl $-2147194493, %edx #, cmd
je .L32 #,
ja .L37 #,
cmpl $-2147194495, %edx #, cmd
je .L30 #,
ja .L31 #,
cmpl $-2147194496, %edx #, cmd
jne .L46 #,
jmp .L58 #
.L37:
cmpl $-1073452667, %edx #, cmd
je .L34 #,
ja .L38 #,
cmpl $-2147194492, %edx #, cmd
jne .L46 #,
jmp .L59 #
.L38:
cmpl $-1073452666, %edx #, cmd
je .L35 #,
cmpl $-1073452665, %edx #, cmd
jne .L46 #,
jmp .L60 #
.L58:
call i8k_get_bios_version #
jmp .L41 #
.L30:
leal 24(%esp), %esi #, tmp93
xorl %eax, %eax # tmp95
movl %esi, %edi # tmp93, tmp94
movl $4, %ecx #, tmp96
rep stosl
movb $7, %al #,
call i8k_get_dmi_data #
movl $16, %ecx #,
movl %eax, %edx # D.15468,
movl %esi, %eax # tmp93,
call strlcpy #
jmp .L39 #
.L32:
call i8k_get_fn_status #
jmp .L41 #
.L31:
call i8k_get_power_status #
jmp .L41 #
.L59:
call i8k_get_temp.clone.1 #
jmp .L41 #
.L34:
leal 44(%esp), %eax #, tmp98
movl %ecx, %edx # arg,
call copy_from_user.clone.2 #
movl $-14, %esi #, ret
testl %eax, %eax # D.15473
jne .L28 #,
movl 44(%esp), %eax # val,
call i8k_get_fan_speed #
jmp .L41 #
.L35:
leal 44(%esp), %eax #, tmp100
movl %ecx, %edx # arg,
call copy_from_user.clone.2 #
movl $-14, %esi #, ret
testl %eax, %eax # D.15476
jne .L28 #,
movl 44(%esp), %eax # val,
jmp .L57 #
.L60:
cmpl $0, restricted #, restricted
je .L40 #,
movl $21, %eax #,
orl $-1, %esi #, ret
call capable #
testl %eax, %eax # D.15479
je .L28 #,
.L40:
leal 44(%esp), %eax #, tmp102
movl %ebx, %edx # arg,
call copy_from_user.clone.2 #
movl $-14, %esi #, ret
testl %eax, %eax # D.15480
jne .L28 #,
leal 4(%ebx), %edx #, tmp103
leal 40(%esp), %eax #, tmp104
call copy_from_user.clone.2 #
testl %eax, %eax # D.15482
jne .L28 #,
movl %esp, %edi #, tmp105
movl $6, %ecx #, tmp107
movl 40(%esp), %edx # speed, speed.19
rep stosl
movl 44(%esp), %esi # val, val.15
movl $419, (%esp) #, regs.eax
cmpl $2, %edx #, speed.19
movb $2, %cl #,
cmovle %edx, %ecx # speed.19,, speed
movl %esi, %edx # val.15, tmp112
testl %ecx, %ecx # speed
cmovns %ecx, %eax # speed,, tmp113
andl $255, %edx #, tmp112
sall $8, %eax #, tmp113
orl %edx, %eax # tmp112, tmp113
movl %eax, 4(%esp) # tmp113, regs.ebx
movl %esp, %eax #, tmp114
call i8k_smm #
testl %eax, %eax # D.15487
jne .L41 #,
movl %esi, %eax # val.15,
.L57:
call i8k_get_fan_status #
.L41:
movl %eax, 44(%esp) # D.15487, val
.L39:
movl 44(%esp), %esi # val, ret
testl %esi, %esi # ret
js .L28 #,
cmpl $-2147194496, %ebp #, cmd
je .L55 #,
cmpl $-2147194495, %ebp #, cmd
jne .L55 #,
leal 24(%esp), %edx #, tmp116
movl $16, %ecx #,
.L56:
movl %ebx, %eax # arg,
call copy_to_user #
cmpl $1, %eax #, D.15485
sbbl %esi, %esi # ret
notl %esi # ret
andl $-14, %esi #, ret
jmp .L28 #
.L55:
leal 44(%esp), %edx #, tmp117
movl $4, %ecx #,
jmp .L56 #
.L46:
movl $-22, %esi #, ret
.L28:
addl $48, %esp #,
movl %esi, %eax # ret,
popl %ebx #
popl %esi #
popl %edi #
popl %ebp #
ret
.size i8k_ioctl, .-i8k_ioctl
.section .rodata.str1.1
.LC3:
.string "<6>i8k: not running on a supported Dell system.\n"
.LC4:
.string "<6>i8k: vendor=%s, model=%s, version=%s\n"
.LC5:
.string "<3>i8k: unable to get SMM Dell signature\n"
.LC6:
.string "<4>i8k: unable to get SMM BIOS version\n"
.LC7:
.string "<4>i8k: BIOS version mismatch: %s != %s\n"
.LC8:
.string "1.14 21/02/2005"
.LC9:
.string "<6>Dell laptop SMM driver v%s Massimo Dal Zotto (dz@xxxxxxxxxx)\n"
.LC10:
.string "i8k"
.section .init.text,"ax",@progbits
.type i8k_init, @function
i8k_init:
pushl %esi #
movl $i8k_dmi_table, %eax #,
pushl %ebx #
subl $4, %esp #,
call dmi_check_system #
testl %eax, %eax # D.15529
jne .L62 #,
cmpl $0, ignore_dmi #, ignore_dmi
jne .L63 #,
cmpl $0, force #, force
movl $-19, %eax #, D.15099
je .L64 #,
.L63:
pushl $.LC3 #
call printk #
movl $2, %eax #,
call i8k_get_dmi_data #
movl %eax, %esi #, D.15525
movl $5, %eax #,
call i8k_get_dmi_data #
movl %eax, %ebx #, D.15524
movl $4, %eax #,
call i8k_get_dmi_data #
pushl %esi # D.15525
pushl %ebx # D.15524
pushl %eax # D.15523
pushl $.LC4 #
call printk #
addl $20, %esp #,
.L62:
movl $2, %eax #,
call i8k_get_dmi_data #
movl $4, %ecx #,
movl %eax, %edx # D.15522,
movl $bios_version, %eax #,
call strlcpy #
movl $65187, %eax #,
call i8k_get_dell_signature #
testl %eax, %eax # D.15521
je .L65 #,
movl $65443, %eax #,
call i8k_get_dell_signature #
testl %eax, %eax # D.15520
je .L65 #,
pushl $.LC5 #
call printk #
movl $-19, %eax #, D.15099
cmpl $0, force #, force
popl %edx #
je .L64 #,
.L65:
call i8k_get_bios_version #
testl %eax, %eax # version
jg .L66 #,
pushl $.LC6 #
call printk #
popl %eax #
jmp .L67 #
.L66:
movl %eax, %edx # version, tmp79
sarl $16, %edx #, tmp79
movb %dl, (%esp) # tmp79, buff
movl %eax, %edx # version, tmp80
sarl $8, %edx #, tmp80
movb %al, 2(%esp) # version, buff
movl $2, %eax #,
movb %dl, 1(%esp) # tmp80, buff
movb $0, 3(%esp) #, buff
call dmi_get_system_info #
testl %eax, %eax # D.15514
jne .L68 #,
movl %esp, %edx #, tmp81
movl $4, %ecx #,
movl $bios_version, %eax #,
call strlcpy #
.L68:
movl $4, %ecx #,
movl $bios_version, %edx #,
movl %esp, %eax #,
movl %esp, %ebx #, tmp82
call strncmp #
testl %eax, %eax # D.15513
je .L67 #,
pushl $bios_version #
pushl %ebx # tmp82
pushl $.LC7 #
call printk #
addl $12, %esp #,
jmp .L67 #
.L74:
pushl $.LC8 #
pushl $.LC9 #
call printk #
xorl %eax, %eax # D.15099
popl %ebx #
popl %esi #
.L64:
addl $4, %esp #,
popl %ebx #
popl %esi #
ret
.L67:
pushl $0 #
xorl %ecx, %ecx #
xorl %edx, %edx #
movl $.LC10, %eax #,
pushl $i8k_fops #
call proc_create_data #
movl %eax, %edx #, proc_i8k
testl %edx, %edx # proc_i8k
popl %eax #
movl $-2, %eax #, D.15099
popl %ecx #
je .L64 #,
jmp .L74 #
.size i8k_init, .-i8k_init
.section .exit.text,"ax",@progbits
.type i8k_exit, @function
i8k_exit:
xorl %edx, %edx #
movl $.LC10, %eax #,
jmp remove_proc_entry #
.size i8k_exit, .-i8k_exit
.section .modinfo,"a",@progbits
.align 4
.type __mod_fan_mult83, @object
.size __mod_fan_mult83, 48
__mod_fan_mult83:
.string "parm=fan_mult:Factor to multiply fan speed with"
.align 4
.type __mod_fan_multtype82, @object
.size __mod_fan_multtype82, 22
__mod_fan_multtype82:
.string "parmtype=fan_mult:int"
.section __param,"a",@progbits
.align 4
.type __param_fan_mult, @object
.size __param_fan_mult, 16
__param_fan_mult:
# name:
.long __param_str_fan_mult
# ops:
.long param_ops_int
# perm:
.value 0
# flags:
.value 0
# <anonymous>:
# arg:
.long fan_mult
.section .modinfo
.align 4
.type __mod_power_status79, @object
.size __mod_power_status79, 51
__mod_power_status79:
.string "parm=power_status:Report power status in /proc/i8k"
.align 4
.type __mod_power_statustype78, @object
.size __mod_power_statustype78, 27
__mod_power_statustype78:
.string "parmtype=power_status:bool"
.section __param
.align 4
.type __param_power_status, @object
.size __param_power_status, 16
__param_power_status:
# name:
.long __param_str_power_status
# ops:
.long param_ops_bool
# perm:
.value 384
# flags:
.value 0
# <anonymous>:
# arg:
.long power_status
.section .modinfo
.align 4
.type __mod_restricted75, @object
.size __mod_restricted75, 62
__mod_restricted75:
.string "parm=restricted:Allow fan control if SYS_ADMIN capability set"
.align 4
.type __mod_restrictedtype74, @object
.size __mod_restrictedtype74, 25
__mod_restrictedtype74:
.string "parmtype=restricted:bool"
.section __param
.align 4
.type __param_restricted, @object
.size __param_restricted, 16
__param_restricted:
# name:
.long __param_str_restricted
# ops:
.long param_ops_bool
# perm:
.value 0
# flags:
.value 0
# <anonymous>:
# arg:
.long restricted
.section .modinfo
.align 4
.type __mod_ignore_dmi71, @object
.size __mod_ignore_dmi71, 74
__mod_ignore_dmi71:
.string "parm=ignore_dmi:Continue probing hardware even if DMI data does not match"
.align 4
.type __mod_ignore_dmitype70, @object
.size __mod_ignore_dmitype70, 25
__mod_ignore_dmitype70:
.string "parmtype=ignore_dmi:bool"
.section __param
.align 4
.type __param_ignore_dmi, @object
.size __param_ignore_dmi, 16
__param_ignore_dmi:
# name:
.long __param_str_ignore_dmi
# ops:
.long param_ops_bool
# perm:
.value 0
# flags:
.value 0
# <anonymous>:
# arg:
.long ignore_dmi
.section .modinfo
.align 4
.type __mod_force67, @object
.size __mod_force67, 63
__mod_force67:
.string "parm=force:Force loading without checking for supported models"
.align 4
.type __mod_forcetype66, @object
.size __mod_forcetype66, 20
__mod_forcetype66:
.string "parmtype=force:bool"
.section __param
.align 4
.type __param_force, @object
.size __param_force, 16
__param_force:
# name:
.long __param_str_force
# ops:
.long param_ops_bool
# perm:
.value 0
# flags:
.value 0
# <anonymous>:
# arg:
.long force
.section .modinfo
.align 4
.type __mod_license63, @object
.size __mod_license63, 12
__mod_license63:
.string "license=GPL"
.align 4
.type __mod_description62, @object
.size __mod_description62, 58
__mod_description62:
.string "description=Driver for accessing SMM BIOS on Dell laptops"
.align 4
.type __mod_author61, @object
.size __mod_author61, 41
__mod_author61:
.string "author=Massimo Dal Zotto (dz@xxxxxxxxxx)"
.data
.align 4
.type fan_mult, @object
.size fan_mult, 4
fan_mult:
.long 30
.local power_status
.comm power_status,4,4
.local restricted
.comm restricted,4,4
.local ignore_dmi
.comm ignore_dmi,4,4
.local force
.comm force,4,4
.section .rodata
.align 4
.type i8k_fops, @object
.size i8k_fops, 100
i8k_fops:
# owner:
.long __this_module
# llseek:
.long seq_lseek
# read:
.long seq_read
# unlocked_ioctl:
.zero 20
.long i8k_ioctl
# open:
.zero 8
.long i8k_open_fs
# release:
.zero 4
.long single_release
.zero 44
.local bios_version
.comm bios_version,4,4
.local prev.12857
.comm prev.12857,4,4
.section .rodata.str1.1
.LC11:
.string "Dell Inspiron"
.LC12:
.string "Dell Latitude"
.LC13:
.string "Dell Inspiron 2"
.LC14:
.string "Dell Latitude 2"
.LC15:
.string "Dell Inspiron 3"
.LC16:
.string "Dell Precision"
.LC17:
.string "Dell Vostro"
.section .init.data,"aw",@progbits
.align 4
.type i8k_dmi_table, @object
.size i8k_dmi_table, 2988
i8k_dmi_table:
# ident:
.zero 4
.long .LC11
# matches:
# slot:
.byte 4
# substr:
.string "Dell Computer"
.zero 65
# slot:
.byte 5
# substr:
.string "Inspiron"
.zero 70
.zero 160
.zero 4
# ident:
.zero 4
.long .LC12
# matches:
# slot:
.byte 4
# substr:
.string "Dell Computer"
.zero 65
# slot:
.byte 5
# substr:
.string "Latitude"
.zero 70
.zero 160
.zero 4
# ident:
.zero 4
.long .LC13
# matches:
# slot:
.byte 4
# substr:
.string "Dell Inc."
.zero 69
# slot:
.byte 5
# substr:
.string "Inspiron"
.zero 70
.zero 160
.zero 4
# ident:
.zero 4
.long .LC14
# matches:
# slot:
.byte 4
# substr:
.string "Dell Inc."
.zero 69
# slot:
.byte 5
# substr:
.string "Latitude"
.zero 70
.zero 160
.zero 4
# ident:
.zero 4
.long .LC15
# matches:
# slot:
.byte 4
# substr:
.string "Dell Inc."
.zero 69
# slot:
.byte 5
# substr:
.string "MM061"
.zero 73
.zero 160
.zero 4
# ident:
.zero 4
.long .LC15
# matches:
# slot:
.byte 4
# substr:
.string "Dell Inc."
.zero 69
# slot:
.byte 5
# substr:
.string "MP061"
.zero 73
.zero 160
.zero 4
# ident:
.zero 4
.long .LC16
# matches:
# slot:
.byte 4
# substr:
.string "Dell Inc."
.zero 69
# slot:
.byte 5
# substr:
.string "Precision"
.zero 69
.zero 160
.zero 4
# ident:
.zero 4
.long .LC17
# matches:
# slot:
.byte 4
# substr:
.string "Dell Inc."
.zero 69
# slot:
.byte 5
# substr:
.string "Vostro"
.zero 72
.zero 160
.zero 4
.zero 332
.section .rodata
.align 4
.type __param_str_fan_mult, @object
.size __param_str_fan_mult, 9
__param_str_fan_mult:
.string "fan_mult"
.align 4
.type __param_str_power_status, @object
.size __param_str_power_status, 13
__param_str_power_status:
.string "power_status"
.align 4
.type __param_str_restricted, @object
.size __param_str_restricted, 11
__param_str_restricted:
.string "restricted"
.align 4
.type __param_str_ignore_dmi, @object
.size __param_str_ignore_dmi, 11
__param_str_ignore_dmi:
.string "ignore_dmi"
.align 4
.type __param_str_force, @object
.size __param_str_force, 6
__param_str_force:
.string "force"
.globl init_module
.set init_module,i8k_init
.globl cleanup_module
.set cleanup_module,i8k_exit
.ident "GCC: (GNU) 4.5.1"
.section .note.GNU-stack,"",@progbits
.file "i8k.c"
# GNU C (GCC) version 4.5.1 (i486-slackware-linux)
# compiled by GNU C version 4.5.1, GMP version 5.0.1, MPFR version 2.4.2-p3, MPC version 0.8.2
# GGC heuristics: --param ggc-min-expand=81 --param ggc-min-heapsize=96817
# options passed: -nostdinc -I/usr/src/linux-2.6.36/arch/x86/include
# -Iinclude -D__KERNEL__ -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1
# -DCONFIG_AS_CFI_SECTIONS=1 -DMODULE -DKBUILD_STR(s)=#s
# -DKBUILD_BASENAME=KBUILD_STR(i8k) -DKBUILD_MODNAME=KBUILD_STR(i8k)
# -isystem /usr/lib/gcc/i486-slackware-linux/4.5.1/include -include
# include/generated/autoconf.h -MD drivers/char/.i8k.s.d drivers/char/i8k.c
# -m32 -msoft-float -mregparm=3 -mpreferred-stack-boundary=2 -march=i686
# -mtune=pentium3 -mtune=generic -mno-sse -mno-mmx -mno-sse2 -mno-3dnow
# -auxbase-strip drivers/char/i8k.s -Os -Wall -Wundef -Wstrict-prototypes
# -Wno-trigraphs -Werror-implicit-function-declaration -Wno-format-security
# -Wno-sign-compare -Wframe-larger-than=1024 -Wdeclaration-after-statement
# -Wno-pointer-sign -fno-strict-aliasing -fno-common
# -fno-delete-null-pointer-checks -freg-struct-return -ffreestanding
# -fno-asynchronous-unwind-tables -fno-stack-protector -fomit-frame-pointer
# -fno-strict-overflow -fconserve-stack -fverbose-asm
# options enabled: -falign-loops -fargument-alias -fauto-inc-dec
# -fbranch-count-reg -fcaller-saves -fcprop-registers -fcrossjumping
# -fcse-follow-jumps -fdefer-pop -fdwarf2-cfi-asm -fearly-inlining
# -feliminate-unused-debug-types -fexpensive-optimizations
# -fforward-propagate -ffunction-cse -fgcse -fgcse-lm
# -fguess-branch-probability -fident -fif-conversion -fif-conversion2
# -findirect-inlining -finline -finline-functions
# -finline-functions-called-once -finline-small-functions -fipa-cp
# -fipa-pure-const -fipa-reference -fipa-sra -fira-share-save-slots
# -fira-share-spill-slots -fivopts -fkeep-static-consts
# -fleading-underscore -fmath-errno -fmerge-constants -fmerge-debug-strings
# -fmove-loop-invariants -fomit-frame-pointer -foptimize-register-move
# -foptimize-sibling-calls -fpeephole -fpeephole2 -freg-struct-return
# -fregmove -freorder-blocks -freorder-functions -frerun-cse-after-loop
# -fsched-critical-path-heuristic -fsched-dep-count-heuristic
# -fsched-group-heuristic -fsched-interblock -fsched-last-insn-heuristic
# -fsched-rank-heuristic -fsched-spec -fsched-spec-insn-heuristic
# -fsched-stalled-insns-dep -fschedule-insns2 -fshow-column -fsigned-zeros
# -fsplit-ivs-in-unroller -fsplit-wide-types -fthread-jumps
# -ftoplevel-reorder -ftrapping-math -ftree-builtin-call-dce -ftree-ccp
# -ftree-ch -ftree-copy-prop -ftree-copyrename -ftree-cselim -ftree-dce
# -ftree-dominator-opts -ftree-dse -ftree-forwprop -ftree-fre
# -ftree-loop-im -ftree-loop-ivcanon -ftree-loop-optimize
# -ftree-parallelize-loops= -ftree-phiprop -ftree-pre -ftree-pta
# -ftree-reassoc -ftree-scev-cprop -ftree-sink -ftree-slp-vectorize
# -ftree-sra -ftree-switch-conversion -ftree-ter -ftree-vect-loop-version
# -ftree-vrp -funit-at-a-time -fvect-cost-model -fverbose-asm
# -fzero-initialized-in-bss -m32 -m96bit-long-double -malign-stringops
# -mfused-madd -mglibc -mieee-fp -mno-fancy-math-387 -mno-red-zone
# -mno-sse4 -mpush-args -msahf -mtls-direct-seg-refs

# Compiler executable checksum: 7ba2dc3c015559b9d16b297ee7f8d354

.text
.type i8k_smm, @function
i8k_smm:
pushl %ebp #
movl %eax, %ebp # regs, regs
pushl %edi #
pushl %esi #
pushl %ebx #
subl $8, %esp #,
movl (%eax), %eax # regs_2(D)->eax,
movl %eax, 4(%esp) #, %sfp
movl %ebp, %eax # regs,
#APP
# 148 "drivers/char/i8k.c" 1
pushl %eax
movl 0(%eax),%edx
push %edx
movl 4(%eax),%ebx
movl 8(%eax),%ecx
movl 12(%eax),%edx
movl 16(%eax),%esi
movl 20(%eax),%edi
popl %eax
out %al,$0xb2
out %al,$0x84
xchgl %eax,(%esp)
movl %ebx,4(%eax)
movl %ecx,8(%eax)
movl %edx,12(%eax)
movl %esi,16(%eax)
movl %edi,20(%eax)
popl %edx
movl %edx,0(%eax)
lahf
shrl $8,%eax
andl $1,%eax

# 0 "" 2
#NO_APP
testl %eax, %eax #
movl $-22, %edx #, D.15130
movl %eax, (%esp) #, %sfp
jne .L2 #,
movl 0(%ebp), %ecx # regs_2(D)->eax, D.15123
cmpw $-1, %cx #, D.15123
je .L2 #,
cmpl 4(%esp), %ecx # %sfp, D.15123
cmovne %eax, %edx #,, D.15130
.L2:
addl $8, %esp #,
movl %edx, %eax # D.15130,
popl %ebx #
popl %esi #
popl %edi #
popl %ebp #
ret
.size i8k_smm, .-i8k_smm
.type i8k_get_bios_version, @function
i8k_get_bios_version:
pushl %edi #
xorl %eax, %eax # tmp62
subl $24, %esp #,
movl $6, %ecx #, tmp63
movl %esp, %edi #, tmp61
rep stosl
movl %esp, %eax #, tmp64
movl $166, (%esp) #, regs.eax
call i8k_smm #
testl %eax, %eax # D.15225
cmove (%esp), %eax # regs.eax,, D.15225
addl $24, %esp #,
popl %edi #
ret
.size i8k_get_bios_version, .-i8k_get_bios_version
.type i8k_get_fn_status, @function
i8k_get_fn_status:
pushl %edi #
xorl %eax, %eax # tmp65
subl $24, %esp #,
movl $6, %ecx #, tmp66
movl %esp, %edi #, tmp64
rep stosl
movl %esp, %eax #, tmp67
movl $37, (%esp) #, regs.eax
call i8k_smm #
testl %eax, %eax # rc
js .L9 #,
movl (%esp), %eax # regs.eax, csui.31
shrl $8, %eax #, csui.31
andl $7, %eax #, csui.31
leal -1(%eax), %edx #, csui.31
xorl %eax, %eax # rc
cmpl $3, %edx #, csui.31
ja .L9 #,
movl CSWTCH.30(,%edx,4), %eax # CSWTCH.30, rc
.L9:
addl $24, %esp #,
popl %edi #
ret
.size i8k_get_fn_status, .-i8k_get_fn_status
.type i8k_get_power_status, @function
i8k_get_power_status:
pushl %edi #
xorl %eax, %eax # tmp63
subl $24, %esp #,
movl $6, %ecx #, tmp64
movl %esp, %edi #, tmp62
rep stosl
movl %esp, %eax #, tmp65
movl $105, (%esp) #, regs.eax
call i8k_smm #
testl %eax, %eax # rc
js .L12 #,
xorl %eax, %eax # rc
cmpb $5, (%esp) #, regs.eax
sete %al #, rc
.L12:
addl $24, %esp #,
popl %edi #
ret
.size i8k_get_power_status, .-i8k_get_power_status
.type i8k_get_fan_status, @function
i8k_get_fan_status:
pushl %edi #
movl %eax, %edx # fan, fan
subl $24, %esp #,
xorl %eax, %eax # tmp66
movl %esp, %edi #, tmp65
movl $6, %ecx #, tmp67
rep stosl
andl $255, %edx #, tmp68
movl %esp, %eax #, tmp69
movl $163, (%esp) #, regs.eax
movl %edx, 4(%esp) # tmp68, regs.ebx
call i8k_smm #
testl %eax, %eax # D.15134
jne .L14 #,
movl (%esp), %eax # regs.eax, regs.eax
andl $255, %eax #, D.15134
.L14:
addl $24, %esp #,
popl %edi #
ret
.size i8k_get_fan_status, .-i8k_get_fan_status
.type i8k_get_fan_speed, @function
i8k_get_fan_speed:
pushl %edi #
movl %eax, %edx # fan, fan
subl $24, %esp #,
xorl %eax, %eax # tmp69
movl %esp, %edi #, tmp68
movl $6, %ecx #, tmp70
rep stosl
andl $255, %edx #, tmp71
movl %esp, %eax #, tmp72
movl $675, (%esp) #, regs.eax
movl %edx, 4(%esp) # tmp71, regs.ebx
call i8k_smm #
testl %eax, %eax # D.15145
jne .L16 #,
movl (%esp), %eax # regs.eax, regs.eax
andl $65535, %eax #, D.15145
imull fan_mult, %eax # fan_mult, D.15145
.L16:
addl $24, %esp #,
popl %edi #
ret
.size i8k_get_fan_speed, .-i8k_get_fan_speed
.type i8k_get_dell_signature, @function
i8k_get_dell_signature:
pushl %edi #
movl %eax, %edx # req_fn, req_fn
subl $24, %esp #,
xorl %eax, %eax # tmp65
movl %esp, %edi #, tmp64
movl $6, %ecx #, tmp66
rep stosl
movl %esp, %eax #, tmp67
movl %edx, (%esp) # req_fn, regs.eax
call i8k_smm #
testl %eax, %eax # rc
js .L18 #,
orl $-1, %eax #, rc
cmpl $1145651527, (%esp) #, regs.eax
jne .L18 #,
xorl %eax, %eax # rc
cmpl $1145392204, 12(%esp) #, regs.edx
sete %al #, rc
decl %eax # rc
.L18:
addl $24, %esp #,
popl %edi #
ret
.size i8k_get_dell_signature, .-i8k_get_dell_signature
.type i8k_open_fs, @function
i8k_open_fs:
movl %edx, %eax # file, file
xorl %ecx, %ecx #
movl $i8k_proc_show, %edx #,
jmp single_open #
.size i8k_open_fs, .-i8k_open_fs
.section .rodata.str1.1,"aMS",@progbits,1
.LC0:
.string "?"
.text
.type i8k_get_dmi_data, @function
i8k_get_dmi_data:
call dmi_get_system_info #
testl %eax, %eax # dmi_data
je .L24 #,
cmpb $0, (%eax) #,* dmi_data
movl $.LC0, %edx #, tmp63
cmove %edx, %eax # dmi_data,, tmp63, dmi_data
ret
.L24:
movl $.LC0, %eax #, dmi_data
ret
.size i8k_get_dmi_data, .-i8k_get_dmi_data
.type i8k_get_temp.clone.1, @function
i8k_get_temp.clone.1:
pushl %edi #
xorl %eax, %eax # tmp63
subl $24, %esp #,
movl $6, %ecx #, tmp64
movl %esp, %edi #, tmp62
rep stosl
movl %esp, %eax #, tmp65
movl $4259, (%esp) #, regs.eax
call i8k_smm #
testl %eax, %eax # rc
js .L26 #,
movl (%esp), %eax # regs.eax, regs.eax
andl $255, %eax #, rc
cmpl $127, %eax #, rc
jle .L27 #,
movl prev.12857, %eax # prev, rc
movl $127, prev.12857 #, prev
jmp .L26 #
.L27:
movl %eax, prev.12857 # rc, prev
.L26:
addl $24, %esp #,
popl %edi #
ret
.size i8k_get_temp.clone.1, .-i8k_get_temp.clone.1
.section .rodata.str1.1
.LC1:
.string "1.0"
.LC2:
.string "%s %s %s %d %d %d %d %d %d %d\n"
.text
.type i8k_proc_show, @function
i8k_proc_show:
pushl %ebp #
pushl %edi #
pushl %esi #
pushl %ebx #
orl $-1, %ebx #, ac_power
subl $16, %esp #,
movl %eax, 12(%esp) # seq, %sfp
call i8k_get_temp.clone.1 #
movl %eax, (%esp) #, %sfp
movl $1, %eax #,
call i8k_get_fan_status #
movl %eax, 4(%esp) #, %sfp
xorl %eax, %eax #
call i8k_get_fan_status #
movl %eax, %esi #, right_fan
movl $1, %eax #,
call i8k_get_fan_speed #
movl %eax, %edi #, left_speed
xorl %eax, %eax #
call i8k_get_fan_speed #
movl %eax, %ebp #, right_speed
call i8k_get_fn_status #
cmpl $0, power_status #, power_status
movl %eax, 8(%esp) #, %sfp
je .L29 #,
call i8k_get_power_status #
movl %eax, %ebx #, ac_power
.L29:
movl $7, %eax #,
call i8k_get_dmi_data #
pushl 8(%esp) # %sfp
pushl %ebx # ac_power
pushl %ebp # right_speed
pushl %edi # left_speed
pushl %esi # right_fan
pushl 24(%esp) # %sfp
pushl 24(%esp) # %sfp
pushl %eax # D.15110
pushl $bios_version #
pushl $.LC1 #
pushl $.LC2 #
pushl 56(%esp) # %sfp
call seq_printf #
addl $64, %esp #,
popl %ebx #
popl %esi #
popl %edi #
popl %ebp #
ret
.size i8k_proc_show, .-i8k_proc_show
.type copy_from_user.clone.2, @function
copy_from_user.clone.2:
movl $4, %ecx #,
jmp _copy_from_user #
.size copy_from_user.clone.2, .-copy_from_user.clone.2
.type i8k_ioctl, @function
i8k_ioctl:
pushl %ebp #
movl %edx, %ebp # cmd, cmd
pushl %edi #
pushl %esi #
movl $-22, %esi #, ret
pushl %ebx #
movl %ecx, %ebx # arg, arg
subl $48, %esp #,
testl %ecx, %ecx # arg
movl $0, 44(%esp) #, val
je .L33 #,
cmpl $-2147194493, %edx #, cmd
je .L37 #,
ja .L42 #,
cmpl $-2147194495, %edx #, cmd
je .L35 #,
ja .L36 #,
cmpl $-2147194496, %edx #, cmd
jne .L51 #,
jmp .L63 #
.L42:
cmpl $-1073452667, %edx #, cmd
je .L39 #,
ja .L43 #,
cmpl $-2147194492, %edx #, cmd
jne .L51 #,
jmp .L64 #
.L43:
cmpl $-1073452666, %edx #, cmd
je .L40 #,
cmpl $-1073452665, %edx #, cmd
jne .L51 #,
jmp .L65 #
.L63:
call i8k_get_bios_version #
jmp .L46 #
.L35:
leal 24(%esp), %esi #, tmp93
xorl %eax, %eax # tmp95
movl %esi, %edi # tmp93, tmp94
movl $4, %ecx #, tmp96
rep stosl
movb $7, %al #,
call i8k_get_dmi_data #
movl $16, %ecx #,
movl %eax, %edx # D.15467,
movl %esi, %eax # tmp93,
call strlcpy #
jmp .L44 #
.L37:
call i8k_get_fn_status #
jmp .L46 #
.L36:
call i8k_get_power_status #
jmp .L46 #
.L64:
call i8k_get_temp.clone.1 #
jmp .L46 #
.L39:
leal 44(%esp), %eax #, tmp98
movl %ecx, %edx # arg,
call copy_from_user.clone.2 #
movl $-14, %esi #, ret
testl %eax, %eax # D.15472
jne .L33 #,
movl 44(%esp), %eax # val,
call i8k_get_fan_speed #
jmp .L46 #
.L40:
leal 44(%esp), %eax #, tmp100
movl %ecx, %edx # arg,
call copy_from_user.clone.2 #
movl $-14, %esi #, ret
testl %eax, %eax # D.15475
jne .L33 #,
movl 44(%esp), %eax # val,
jmp .L62 #
.L65:
cmpl $0, restricted #, restricted
je .L45 #,
movl $21, %eax #,
orl $-1, %esi #, ret
call capable #
testl %eax, %eax # D.15478
je .L33 #,
.L45:
leal 44(%esp), %eax #, tmp102
movl %ebx, %edx # arg,
call copy_from_user.clone.2 #
movl $-14, %esi #, ret
testl %eax, %eax # D.15479
jne .L33 #,
leal 4(%ebx), %edx #, tmp103
leal 40(%esp), %eax #, tmp104
call copy_from_user.clone.2 #
testl %eax, %eax # D.15481
jne .L33 #,
movl %esp, %edi #, tmp105
movl $6, %ecx #, tmp107
movl 40(%esp), %edx # speed, speed.19
rep stosl
movl 44(%esp), %esi # val, val.15
movl $419, (%esp) #, regs.eax
cmpl $2, %edx #, speed.19
movb $2, %cl #,
cmovle %edx, %ecx # speed.19,, speed
movl %esi, %edx # val.15, tmp112
testl %ecx, %ecx # speed
cmovns %ecx, %eax # speed,, tmp113
andl $255, %edx #, tmp112
sall $8, %eax #, tmp113
orl %edx, %eax # tmp112, tmp113
movl %eax, 4(%esp) # tmp113, regs.ebx
movl %esp, %eax #, tmp114
call i8k_smm #
testl %eax, %eax # D.15486
jne .L46 #,
movl %esi, %eax # val.15,
.L62:
call i8k_get_fan_status #
.L46:
movl %eax, 44(%esp) # D.15486, val
.L44:
movl 44(%esp), %esi # val, ret
testl %esi, %esi # ret
js .L33 #,
cmpl $-2147194496, %ebp #, cmd
je .L60 #,
cmpl $-2147194495, %ebp #, cmd
jne .L60 #,
leal 24(%esp), %edx #, tmp116
movl $16, %ecx #,
.L61:
movl %ebx, %eax # arg,
call copy_to_user #
cmpl $1, %eax #, D.15484
sbbl %esi, %esi # ret
notl %esi # ret
andl $-14, %esi #, ret
jmp .L33 #
.L60:
leal 44(%esp), %edx #, tmp117
movl $4, %ecx #,
jmp .L61 #
.L51:
movl $-22, %esi #, ret
.L33:
addl $48, %esp #,
movl %esi, %eax # ret,
popl %ebx #
popl %esi #
popl %edi #
popl %ebp #
ret
.size i8k_ioctl, .-i8k_ioctl
.section .rodata.str1.1
.LC3:
.string "<6>i8k: not running on a supported Dell system.\n"
.LC4:
.string "<6>i8k: vendor=%s, model=%s, version=%s\n"
.LC5:
.string "<3>i8k: unable to get SMM Dell signature\n"
.LC6:
.string "<4>i8k: unable to get SMM BIOS version\n"
.LC7:
.string "<4>i8k: BIOS version mismatch: %s != %s\n"
.LC8:
.string "1.14 21/02/2005"
.LC9:
.string "<6>Dell laptop SMM driver v%s Massimo Dal Zotto (dz@xxxxxxxxxx)\n"
.LC10:
.string "i8k"
.section .init.text,"ax",@progbits
.type i8k_init, @function
i8k_init:
pushl %esi #
movl $i8k_dmi_table, %eax #,
pushl %ebx #
subl $4, %esp #,
call dmi_check_system #
testl %eax, %eax # D.15529
jne .L67 #,
cmpl $0, ignore_dmi #, ignore_dmi
jne .L68 #,
cmpl $0, force #, force
movl $-19, %eax #, D.15099
je .L69 #,
.L68:
pushl $.LC3 #
call printk #
movl $2, %eax #,
call i8k_get_dmi_data #
movl %eax, %esi #, D.15525
movl $5, %eax #,
call i8k_get_dmi_data #
movl %eax, %ebx #, D.15524
movl $4, %eax #,
call i8k_get_dmi_data #
pushl %esi # D.15525
pushl %ebx # D.15524
pushl %eax # D.15523
pushl $.LC4 #
call printk #
addl $20, %esp #,
.L67:
movl $2, %eax #,
call i8k_get_dmi_data #
movl $4, %ecx #,
movl %eax, %edx # D.15522,
movl $bios_version, %eax #,
call strlcpy #
movl $65187, %eax #,
call i8k_get_dell_signature #
testl %eax, %eax # D.15521
je .L70 #,
movl $65443, %eax #,
call i8k_get_dell_signature #
testl %eax, %eax # D.15520
je .L70 #,
pushl $.LC5 #
call printk #
movl $-19, %eax #, D.15099
cmpl $0, force #, force
popl %edx #
je .L69 #,
.L70:
call i8k_get_bios_version #
testl %eax, %eax # version
jg .L71 #,
pushl $.LC6 #
call printk #
popl %eax #
jmp .L72 #
.L71:
movl %eax, %edx # version, tmp79
sarl $16, %edx #, tmp79
movb %dl, (%esp) # tmp79, buff
movl %eax, %edx # version, tmp80
sarl $8, %edx #, tmp80
movb %al, 2(%esp) # version, buff
movl $2, %eax #,
movb %dl, 1(%esp) # tmp80, buff
movb $0, 3(%esp) #, buff
call dmi_get_system_info #
testl %eax, %eax # D.15514
jne .L73 #,
movl %esp, %edx #, tmp81
movl $4, %ecx #,
movl $bios_version, %eax #,
call strlcpy #
.L73:
movl $4, %ecx #,
movl $bios_version, %edx #,
movl %esp, %eax #,
movl %esp, %ebx #, tmp82
call strncmp #
testl %eax, %eax # D.15513
je .L72 #,
pushl $bios_version #
pushl %ebx # tmp82
pushl $.LC7 #
call printk #
addl $12, %esp #,
jmp .L72 #
.L79:
pushl $.LC8 #
pushl $.LC9 #
call printk #
xorl %eax, %eax # D.15099
popl %ebx #
popl %esi #
.L69:
addl $4, %esp #,
popl %ebx #
popl %esi #
ret
.L72:
pushl $0 #
xorl %ecx, %ecx #
xorl %edx, %edx #
movl $.LC10, %eax #,
pushl $i8k_fops #
call proc_create_data #
movl %eax, %edx #, proc_i8k
testl %edx, %edx # proc_i8k
popl %eax #
movl $-2, %eax #, D.15099
popl %ecx #
je .L69 #,
jmp .L79 #
.size i8k_init, .-i8k_init
.section .exit.text,"ax",@progbits
.type i8k_exit, @function
i8k_exit:
xorl %edx, %edx #
movl $.LC10, %eax #,
jmp remove_proc_entry #
.size i8k_exit, .-i8k_exit
.section .modinfo,"a",@progbits
.align 4
.type __mod_fan_mult83, @object
.size __mod_fan_mult83, 48
__mod_fan_mult83:
.string "parm=fan_mult:Factor to multiply fan speed with"
.align 4
.type __mod_fan_multtype82, @object
.size __mod_fan_multtype82, 22
__mod_fan_multtype82:
.string "parmtype=fan_mult:int"
.section __param,"a",@progbits
.align 4
.type __param_fan_mult, @object
.size __param_fan_mult, 16
__param_fan_mult:
# name:
.long __param_str_fan_mult
# ops:
.long param_ops_int
# perm:
.value 0
# flags:
.value 0
# <anonymous>:
# arg:
.long fan_mult
.section .modinfo
.align 4
.type __mod_power_status79, @object
.size __mod_power_status79, 51
__mod_power_status79:
.string "parm=power_status:Report power status in /proc/i8k"
.align 4
.type __mod_power_statustype78, @object
.size __mod_power_statustype78, 27
__mod_power_statustype78:
.string "parmtype=power_status:bool"
.section __param
.align 4
.type __param_power_status, @object
.size __param_power_status, 16
__param_power_status:
# name:
.long __param_str_power_status
# ops:
.long param_ops_bool
# perm:
.value 384
# flags:
.value 0
# <anonymous>:
# arg:
.long power_status
.section .modinfo
.align 4
.type __mod_restricted75, @object
.size __mod_restricted75, 62
__mod_restricted75:
.string "parm=restricted:Allow fan control if SYS_ADMIN capability set"
.align 4
.type __mod_restrictedtype74, @object
.size __mod_restrictedtype74, 25
__mod_restrictedtype74:
.string "parmtype=restricted:bool"
.section __param
.align 4
.type __param_restricted, @object
.size __param_restricted, 16
__param_restricted:
# name:
.long __param_str_restricted
# ops:
.long param_ops_bool
# perm:
.value 0
# flags:
.value 0
# <anonymous>:
# arg:
.long restricted
.section .modinfo
.align 4
.type __mod_ignore_dmi71, @object
.size __mod_ignore_dmi71, 74
__mod_ignore_dmi71:
.string "parm=ignore_dmi:Continue probing hardware even if DMI data does not match"
.align 4
.type __mod_ignore_dmitype70, @object
.size __mod_ignore_dmitype70, 25
__mod_ignore_dmitype70:
.string "parmtype=ignore_dmi:bool"
.section __param
.align 4
.type __param_ignore_dmi, @object
.size __param_ignore_dmi, 16
__param_ignore_dmi:
# name:
.long __param_str_ignore_dmi
# ops:
.long param_ops_bool
# perm:
.value 0
# flags:
.value 0
# <anonymous>:
# arg:
.long ignore_dmi
.section .modinfo
.align 4
.type __mod_force67, @object
.size __mod_force67, 63
__mod_force67:
.string "parm=force:Force loading without checking for supported models"
.align 4
.type __mod_forcetype66, @object
.size __mod_forcetype66, 20
__mod_forcetype66:
.string "parmtype=force:bool"
.section __param
.align 4
.type __param_force, @object
.size __param_force, 16
__param_force:
# name:
.long __param_str_force
# ops:
.long param_ops_bool
# perm:
.value 0
# flags:
.value 0
# <anonymous>:
# arg:
.long force
.section .modinfo
.align 4
.type __mod_license63, @object
.size __mod_license63, 12
__mod_license63:
.string "license=GPL"
.align 4
.type __mod_description62, @object
.size __mod_description62, 58
__mod_description62:
.string "description=Driver for accessing SMM BIOS on Dell laptops"
.align 4
.type __mod_author61, @object
.size __mod_author61, 41
__mod_author61:
.string "author=Massimo Dal Zotto (dz@xxxxxxxxxx)"
.data
.align 4
.type fan_mult, @object
.size fan_mult, 4
fan_mult:
.long 30
.local power_status
.comm power_status,4,4
.local restricted
.comm restricted,4,4
.local ignore_dmi
.comm ignore_dmi,4,4
.local force
.comm force,4,4
.section .rodata
.align 4
.type i8k_fops, @object
.size i8k_fops, 100
i8k_fops:
# owner:
.long __this_module
# llseek:
.long seq_lseek
# read:
.long seq_read
# unlocked_ioctl:
.zero 20
.long i8k_ioctl
# open:
.zero 8
.long i8k_open_fs
# release:
.zero 4
.long single_release
.zero 44
.local bios_version
.comm bios_version,4,4
.local prev.12857
.comm prev.12857,4,4
.section .rodata.str1.1
.LC11:
.string "Dell Inspiron"
.LC12:
.string "Dell Latitude"
.LC13:
.string "Dell Inspiron 2"
.LC14:
.string "Dell Latitude 2"
.LC15:
.string "Dell Inspiron 3"
.LC16:
.string "Dell Precision"
.LC17:
.string "Dell Vostro"
.section .init.data,"aw",@progbits
.align 4
.type i8k_dmi_table, @object
.size i8k_dmi_table, 2988
i8k_dmi_table:
# ident:
.zero 4
.long .LC11
# matches:
# slot:
.byte 4
# substr:
.string "Dell Computer"
.zero 65
# slot:
.byte 5
# substr:
.string "Inspiron"
.zero 70
.zero 160
.zero 4
# ident:
.zero 4
.long .LC12
# matches:
# slot:
.byte 4
# substr:
.string "Dell Computer"
.zero 65
# slot:
.byte 5
# substr:
.string "Latitude"
.zero 70
.zero 160
.zero 4
# ident:
.zero 4
.long .LC13
# matches:
# slot:
.byte 4
# substr:
.string "Dell Inc."
.zero 69
# slot:
.byte 5
# substr:
.string "Inspiron"
.zero 70
.zero 160
.zero 4
# ident:
.zero 4
.long .LC14
# matches:
# slot:
.byte 4
# substr:
.string "Dell Inc."
.zero 69
# slot:
.byte 5
# substr:
.string "Latitude"
.zero 70
.zero 160
.zero 4
# ident:
.zero 4
.long .LC15
# matches:
# slot:
.byte 4
# substr:
.string "Dell Inc."
.zero 69
# slot:
.byte 5
# substr:
.string "MM061"
.zero 73
.zero 160
.zero 4
# ident:
.zero 4
.long .LC15
# matches:
# slot:
.byte 4
# substr:
.string "Dell Inc."
.zero 69
# slot:
.byte 5
# substr:
.string "MP061"
.zero 73
.zero 160
.zero 4
# ident:
.zero 4
.long .LC16
# matches:
# slot:
.byte 4
# substr:
.string "Dell Inc."
.zero 69
# slot:
.byte 5
# substr:
.string "Precision"
.zero 69
.zero 160
.zero 4
# ident:
.zero 4
.long .LC17
# matches:
# slot:
.byte 4
# substr:
.string "Dell Inc."
.zero 69
# slot:
.byte 5
# substr:
.string "Vostro"
.zero 72
.zero 160
.zero 4
.zero 332
.section .rodata
.align 4
.type CSWTCH.30, @object
.size CSWTCH.30, 16
CSWTCH.30:
.long 1
.long 2
.long 0
.long 4
.align 4
.type __param_str_fan_mult, @object
.size __param_str_fan_mult, 9
__param_str_fan_mult:
.string "fan_mult"
.align 4
.type __param_str_power_status, @object
.size __param_str_power_status, 13
__param_str_power_status:
.string "power_status"
.align 4
.type __param_str_restricted, @object
.size __param_str_restricted, 11
__param_str_restricted:
.string "restricted"
.align 4
.type __param_str_ignore_dmi, @object
.size __param_str_ignore_dmi, 11
__param_str_ignore_dmi:
.string "ignore_dmi"
.align 4
.type __param_str_force, @object
.size __param_str_force, 6
__param_str_force:
.string "force"
.globl init_module
.set init_module,i8k_init
.globl cleanup_module
.set cleanup_module,i8k_exit
.ident "GCC: (GNU) 4.5.1"
.section .note.GNU-stack,"",@progbits

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