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.macro PUSH_REGS
push {r0-r12}
vpush.64 {d0-d7}
.endm
.macro POP_REGS
vpop.64 {d0-d7}
pop {r0-r12}
.endm
// Export symbols
.global tizenASanWrapper
.global tizenASanWrapperSize
.global tizenASanWrapperEntryOffset
.text
.arm
tizenASanWrapper:
// !!! ATTENTION !!!
// Don't move this labels (target, pushAddr, popAddr)
// because they mapped to AuxiliaryCalls struct from src/vm/tizenasanenv.cpp
target: .word 0xdeadc0de
pushAddr: .word 0xdeadc0de @ void pushAddr(LPVOID addr)
popAddr: .word 0xdeadc0de @ LPVOID popAddr()
entryPointer:
// Save context
PUSH_REGS
// Save the return address and call 'pre handler'
mov r0, lr
ldr r1, pushAddr
blx r1
// Restore context
POP_REGS
// Change the return address
adr lr, postLabel
// Call original function
ldr pc, target
postLabel:
// Save context
PUSH_REGS
// Get the return address and call 'post handler'
ldr r0, popAddr
blx r0
// Restore the return address
mov lr, r0
// Restore context
POP_REGS
bx lr
tizenASanWrapperSize: .word . - tizenASanWrapper
tizenASanWrapperEntryOffset: .word entryPointer - tizenASanWrapper
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