Ok, I figured out how to use obj2asm. The trick is to cd to the
directory holding the file you wish to dissassemble and _not_
specify the whole path, or else it throws a confusing "Fatal
error: unrecognized flag" error.
I ran:
obj2asm intLoadTest.o intLoadTest.d > intLoadTest.s
and got this:
FLAT group
extrn _main
public _deh_beg
public _deh_end
public _tlsstart
public _tlsend
public _Dmain
public _D11intLoadTest12__ModuleInfoZ
public main
extrn _d_run_main
extrn _Dmain
extrn _d_dso_registry
.text segment
assume CS:.text
.text ends
.data segment
_D11intLoadTest12__ModuleInfoZ:
db 004h,010h,000h,000h,000h,000h,000h,000h ;........
db 069h,06eh,074h,04ch,06fh,061h,064h,054h ;intLoadT
db 065h,073h,074h,000h ;est.
.data ends
.bss segment
.bss ends
.rodata segment
.rodata ends
.tdata segment
_tlsstart:
db 000h,000h,000h,000h,000h,000h,000h,000h ;........
db 000h,000h,000h,000h,000h,000h,000h,000h ;........
.tdata ends
.tdata. segment
.tdata. ends
.text._Dmain segment
assume CS:.text._Dmain
_Dmain:
push RBP
mov RBP,RSP
mov EAX,0Ah
pop RBP
ret
0f1f
add [RAX],R8B
.text._Dmain ends
.text.main segment
assume CS:.text.main
main:
push RBP
mov RBP,RSP
sub RSP,010h
mov RDX,offset FLAT:_Dmain@64
call _d_run_main@PC32
leave
ret
.text.main ends
.data.d_dso_rec segment
db 000h,000h,000h,000h,000h,000h,000h,000h ;........
.data.d_dso_rec ends
.text.d_dso_init segment
assume CS:.text.d_dso_init
L0: enter 0,0
lea RAX,_deh_end@PC32[RIP]
push RAX
lea RAX,_deh_beg@PC32[RIP]
push RAX
lea RAX,FLAT:[00h][RIP]
push RAX
lea RAX,FLAT:[00h][RIP]
push RAX
lea RAX,FLAT:.data.d_dso_rec[00h][RIP]
push RAX
push 1
mov RDI,RSP
call _d_dso_registry@PLT32
leave
ret
.text.d_dso_init ends
end
Can you tell whether a 32-bit load was used?
Jake
P.S - That's _way_ less output than what objdump gave!
