SYS-OSS/FRET-LibAFL
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decrease emitted code opcode count

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This commit is contained in:
Omree 2021-06-09 12:05:35 +03:00
parent 2451302575
commit 584b034a52
1 changed files with 7 additions and 21 deletions
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28
libafl_frida/src/cmplog_rt.rs
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@ -72,15 +72,11 @@ impl CmpLogRuntime {
} }
} }
extern "C" fn populate_lists(&mut self) { extern "C" fn populate_lists(&mut self, op1: u64, op2: u64, retaddr: u64) {
let op1 = self.regs[0]; // println!(
let op2 = self.regs[1]; // "entered populate_lists with: {:#02x}, {:#02x}, {:#02x}",
let retaddr = self.regs[2]; // op1, op2, retaddr
// );
println!(
"entered populate_lists with: {:#02x}, {:#02x}, {:#02x}",
op1, op2, retaddr
);
let mut k = (retaddr >> 4) ^ (retaddr << 8); let mut k = (retaddr >> 4) ^ (retaddr << 8);
k &= (CMPLOG_MAP_W as u64) - 1; k &= (CMPLOG_MAP_W as u64) - 1;
@ -88,14 +84,6 @@ impl CmpLogRuntime {
unsafe { unsafe {
libafl_targets_cmplog_wrapper(k, 8, op1, op2); libafl_targets_cmplog_wrapper(k, 8, op1, op2);
} }
println!("returned from c code");
// self.cmplog_map.headers[self.cmp_idx].hits += 1;
// self.cmplog_map.headers[self.cmp_idx].shape = 8;
// let cmplog_ops: CmpLogOperands = CmpLogOperands(op1, op2);
// self.cmplog_map.operands[self.cmp_idx] = cmplog_ops;
// self.cmp_idx += 1;
} }
/// Generate the instrumentation blobs for the current arch. /// Generate the instrumentation blobs for the current arch.
@ -112,10 +100,8 @@ impl CmpLogRuntime {
; stp x14, x15, [sp, #-0x10]! ; stp x14, x15, [sp, #-0x10]!
; stp x29, x30, [sp, #-0x10]! ; stp x29, x30, [sp, #-0x10]!
// jump to rust based population of the lists // jump to rust based population of the lists
; ldr x5, >self_regs_addr ; mov x2, x0
; stp x0, x1, [x5] ; adr x3, >done
; adr x2, >done
; str x2, [x5, 0x10]
; ldr x4, >populate_lists ; ldr x4, >populate_lists
; ldr x0, >self_addr ; ldr x0, >self_addr
; blr x4 ; blr x4