What format crash utility's disassembler uses to output assembly instructions?
Crash utility can disassemble kernel functions. but what format it uses? Which is first, source or destination?
inst src, dist
or
inst dist, src
This is what I am asking about:
crash> dis sys_signal
0xc0112c88 <sys_signal>: push %ebp
0xc0112c89 <sys_signal+1>: mov %esp,%ebp
0xc0112c8b <sys_signal+3>: sub $0x28,%esp
0xc0112c8e <sys_signal+6>: mov 0xc(%ebp),%eax
0xc0112c91 <sys_signal+9>: mov %eax,0xffffffec(%ebp)
0xc0112c94 <sys_signal+12>: movl $0xc0000000,0xfffffff0(%ebp)
0xc0112c9b <sys_signal+19>: lea 0xffffffd8(%ebp),%eax
crash assembly gdb disassembly
asked Jan 4 at 21:49
hebbohebbo
1247
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Crash utility can disassemble kernel functions. but what format it uses? Which is first, source or destination?
inst src, dist
or
inst dist, src
This is what I am asking about:
crash> dis sys_signal
0xc0112c88 <sys_signal>: push %ebp
0xc0112c89 <sys_signal+1>: mov %esp,%ebp
0xc0112c8b <sys_signal+3>: sub $0x28,%esp
0xc0112c8e <sys_signal+6>: mov 0xc(%ebp),%eax
0xc0112c91 <sys_signal+9>: mov %eax,0xffffffec(%ebp)
0xc0112c94 <sys_signal+12>: movl $0xc0000000,0xfffffff0(%ebp)
0xc0112c9b <sys_signal+19>: lea 0xffffffd8(%ebp),%eax
crash assembly gdb disassembly
asked Jan 4 at 21:49
hebbohebbo
1247
add a comment |
Crash utility can disassemble kernel functions. but what format it uses? Which is first, source or destination?
inst src, dist
or
inst dist, src
This is what I am asking about:
crash> dis sys_signal
0xc0112c88 <sys_signal>: push %ebp
0xc0112c89 <sys_signal+1>: mov %esp,%ebp
0xc0112c8b <sys_signal+3>: sub $0x28,%esp
0xc0112c8e <sys_signal+6>: mov 0xc(%ebp),%eax
0xc0112c91 <sys_signal+9>: mov %eax,0xffffffec(%ebp)
0xc0112c94 <sys_signal+12>: movl $0xc0000000,0xfffffff0(%ebp)
0xc0112c9b <sys_signal+19>: lea 0xffffffd8(%ebp),%eax
crash assembly gdb disassembly
asked Jan 4 at 21:49
hebbohebbo
1247
Crash utility can disassemble kernel functions. but what format it uses? Which is first, source or destination?
inst src, dist
or
inst dist, src
This is what I am asking about:
crash> dis sys_signal
0xc0112c88 <sys_signal>: push %ebp
0xc0112c89 <sys_signal+1>: mov %esp,%ebp
0xc0112c8b <sys_signal+3>: sub $0x28,%esp
0xc0112c8e <sys_signal+6>: mov 0xc(%ebp),%eax
0xc0112c91 <sys_signal+9>: mov %eax,0xffffffec(%ebp)
0xc0112c94 <sys_signal+12>: movl $0xc0000000,0xfffffff0(%ebp)
0xc0112c9b <sys_signal+19>: lea 0xffffffd8(%ebp),%eax
crash assembly gdb disassembly
crash assembly gdb disassembly
asked Jan 4 at 21:49
hebbohebbo
1247
asked Jan 4 at 21:49
hebbohebbo
1247
asked Jan 4 at 21:49
hebbohebbo
1247
asked Jan 4 at 21:49
hebbohebbo
1247
asked Jan 4 at 21:49
hebbohebbo
1247
1247
add a comment |
add a comment |
1 Answer
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oldest
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The disassembler generates AT&T syntax assembly code, which puts the source first, destination last. (Intel syntax does the opposite, and you can distinguish them based on usage of sigils like % and $ all over the place.)
- AT&T:
mov %srcreg,%dstreg
- Intel:
mov dstreg, srcreg
More information:
- https://imada.sdu.dk/Employees/kslarsen-bak/Courses/dm18-2007-spring/Litteratur/IntelnATT.htm
answered Jan 4 at 22:15
grawitygrawity
237k37503557
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The disassembler generates AT&T syntax assembly code, which puts the source first, destination last. (Intel syntax does the opposite, and you can distinguish them based on usage of sigils like % and $ all over the place.)
- AT&T:
mov %srcreg,%dstreg
- Intel:
mov dstreg, srcreg
More information:
- https://imada.sdu.dk/Employees/kslarsen-bak/Courses/dm18-2007-spring/Litteratur/IntelnATT.htm
answered Jan 4 at 22:15
grawitygrawity
237k37503557
add a comment |
The disassembler generates AT&T syntax assembly code, which puts the source first, destination last. (Intel syntax does the opposite, and you can distinguish them based on usage of sigils like % and $ all over the place.)
- AT&T:
mov %srcreg,%dstreg
- Intel:
mov dstreg, srcreg
More information:
- https://imada.sdu.dk/Employees/kslarsen-bak/Courses/dm18-2007-spring/Litteratur/IntelnATT.htm
answered Jan 4 at 22:15
grawitygrawity
237k37503557
add a comment |
The disassembler generates AT&T syntax assembly code, which puts the source first, destination last. (Intel syntax does the opposite, and you can distinguish them based on usage of sigils like % and $ all over the place.)
- AT&T:
mov %srcreg,%dstreg
- Intel:
mov dstreg, srcreg
More information:
- https://imada.sdu.dk/Employees/kslarsen-bak/Courses/dm18-2007-spring/Litteratur/IntelnATT.htm
answered Jan 4 at 22:15
grawitygrawity
237k37503557
The disassembler generates AT&T syntax assembly code, which puts the source first, destination last. (Intel syntax does the opposite, and you can distinguish them based on usage of sigils like % and $ all over the place.)
- AT&T:
mov %srcreg,%dstreg
- Intel:
mov dstreg, srcreg
More information:
- https://imada.sdu.dk/Employees/kslarsen-bak/Courses/dm18-2007-spring/Litteratur/IntelnATT.htm
answered Jan 4 at 22:15
grawitygrawity
237k37503557
answered Jan 4 at 22:15
grawitygrawity
237k37503557
answered Jan 4 at 22:15
grawitygrawity
237k37503557
answered Jan 4 at 22:15
grawitygrawity
237k37503557
237k37503557
add a comment |
add a comment |
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