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compcov levels to enable the instrumentation of only immediates

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This commit is contained in:
Andrea Fioraldi
2019-07-29 16:09:28 +02:00
parent 7ca22cd552
commit d6beac5235
5 changed files with 71 additions and 15 deletions
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9
qemu_mode/patches/afl-qemu-cpu-translate-inl.h
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@ -40,7 +40,7 @@
extern unsigned char *afl_area_ptr;
extern unsigned int afl_inst_rms;
extern abi_ulong afl_start_code, afl_end_code;
extern u8 afl_enable_compcov;
extern u8 afl_compcov_level;
void tcg_gen_afl_compcov_log_call(void *func, target_ulong cur_loc,
TCGv_i64 arg1, TCGv_i64 arg2);
@ -95,11 +95,14 @@ static void afl_compcov_log_64(target_ulong cur_loc, target_ulong arg1,
static void afl_gen_compcov(target_ulong cur_loc, TCGv_i64 arg1, TCGv_i64 arg2,
TCGMemOp ot) {
TCGMemOp ot, int is_imm) {
void *func;
if (!afl_enable_compcov || cur_loc > afl_end_code || cur_loc < afl_start_code)
if (!afl_compcov_level || cur_loc > afl_end_code || cur_loc < afl_start_code)
return;
if (!is_imm && afl_compcov_level < 2)
return;
switch (ot) {