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callbacks: Read code using MemoryReadCode callback

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This commit is contained in:
MerryMage 2016-12-21 20:48:05 +00:00
parent 80b2efbea7
commit 36082087de
10 changed files with 45 additions and 23 deletions
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15
tests/arm/fuzz_arm.cpp
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@ -52,6 +52,7 @@ static u8 MemoryRead8(u32 vaddr);
static u16 MemoryRead16(u32 vaddr);
static u32 MemoryRead32(u32 vaddr);
static u64 MemoryRead64(u32 vaddr);
static u32 MemoryReadCode(u32 vaddr);
static void MemoryWrite8(u32 vaddr, u8 value);
static void MemoryWrite16(u32 vaddr, u16 value);
static void MemoryWrite32(u32 vaddr, u32 value);
@ -69,15 +70,18 @@ static u16 MemoryRead16(u32 vaddr) {
return static_cast<u16>(vaddr);
}
static u32 MemoryRead32(u32 vaddr) {
if (vaddr < code_mem.size() * sizeof(u32)) {
size_t index = vaddr / sizeof(u32);
return code_mem[index];
}
return vaddr;
}
static u64 MemoryRead64(u32 vaddr) {
return MemoryRead32(vaddr) | (u64(MemoryRead32(vaddr+4)) << 32);
}
static u32 MemoryReadCode(u32 vaddr) {
if (vaddr < code_mem.size() * sizeof(u32)) {
size_t index = vaddr / sizeof(u32);
return code_mem[index];
}
return 0xeafffffe; // b +#0
}
static void MemoryWrite8(u32 vaddr, u8 value){
write_records.push_back({8, vaddr, value});
@ -128,6 +132,7 @@ static Dynarmic::UserCallbacks GetUserCallbacks() {
user_callbacks.MemoryRead16 = &MemoryRead16;
user_callbacks.MemoryRead32 = &MemoryRead32;
user_callbacks.MemoryRead64 = &MemoryRead64;
user_callbacks.MemoryReadCode = &MemoryReadCode;
user_callbacks.MemoryWrite8 = &MemoryWrite8;
user_callbacks.MemoryWrite16 = &MemoryWrite16;
user_callbacks.MemoryWrite32 = &MemoryWrite32;
@ -292,7 +297,7 @@ void FuzzJitArm(const size_t instruction_count, const size_t instructions_to_exe
size_t num_insts = 0;
while (num_insts < instructions_to_execute_count) {
Dynarmic::IR::LocationDescriptor descriptor = {u32(num_insts * 4), Dynarmic::Arm::PSR{}, Dynarmic::Arm::FPSCR{}};
Dynarmic::IR::Block ir_block = Dynarmic::Arm::Translate(descriptor, &MemoryRead32);
Dynarmic::IR::Block ir_block = Dynarmic::Arm::Translate(descriptor, &MemoryReadCode);
Dynarmic::Optimization::GetSetElimination(ir_block);
Dynarmic::Optimization::DeadCodeElimination(ir_block);
Dynarmic::Optimization::VerificationPass(ir_block);