- AMFI will allow non signed binaries
- disables various checks
- used inside the kernel debugger
- in older jailbreaks replaced by RETURN(1)
- Internal name for variable "dword_80284A00" in disassembly is _debug_enabled.
__text:801DD218
__text:801DD218 EXPORT _PE_i_can_has_debugger
__text:801DD218 _PE_i_can_has_debugger ; CODE XREF: sub_801DD23C+8↓p
__text:801DD218 ; sub_802D8A94+E↓p ...
__text:801DD218 CBZ R0, loc_801DD22E
__text:801DD21A LDR R2, =dword_80284A00 <== variable patched to 1
__text:801DD21C LDR R3, [R2]
__text:801DD21E CBNZ R3, loc_801DD226
__text:801DD220 STR R3, [R0]
__text:801DD222
__text:801DD222 loc_801DD222 ; CODE XREF: _PE_i_can_has_debugger+14
__text:801DD222 ; _PE_i_can_has_debugger+18↓j
__text:801DD222 LDR R0, [R2]
__text:801DD224 BX LR
__text:801DD226 ; ---------------------------------------------------------------------------
__text:801DD226
__text:801DD226 loc_801DD226 ; CODE XREF: _PE_i_can_has_debugger+6↑
__text:801DD226 LDR R3, =dword_802731A0
__text:801DD228 LDR R3, [R3]
__text:801DD22A STR R3, [R0]
__text:801DD22C B loc_801DD2..
__text:801DD22E ; ---------------------------------------------------------------------------
__text:801DD22E
__text:801DD22E loc_801DD22E ; ...
__text:801DD22E LDR R2, =dword_...
__text:801DD230 B loc_801DD2..
__text:801DD230 ; End of function _PE_i_can_has_debugger
__text:801DD230
__text:801DD230 ; ---------------------------------------------------------------------------