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Initial import unicornafl

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lazymio
2021-10-25 00:51:16 +02:00
parent 91451aa2f5
commit dd7476a9bd
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include/afl/afl-tcg-op-inl.h Normal file
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/*
american fuzzy lop++ - unicorn instrumentation
----------------------------------------------
Originally written by Andrew Griffiths <agriffiths@google.com> and
Michal Zalewski
Adapted for afl-unicorn by Dominik Maier <mail@dmnk.co>
CompareCoverage and NeverZero counters by Andrea Fioraldi
<andreafioraldi@gmail.com>
Copyright 2015, 2016, 2017 Google Inc. All rights reserved.
Copyright 2019 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at:
http://www.apache.org/licenses/LICENSE-2.0
This code is a shim patched into the separately-distributed source
code of Unicorn 1.0.1. It leverages the built-in QEMU tracing functionality
to implement AFL-style instrumentation and to take care of the remaining
parts of the AFL fork server logic.
The resulting libunicorn binary is essentially a standalone instrumentation
tool; for an example of how to leverage it for other purposes, you can
have a look at afl-showmap.c.
*/
static inline void gen_afl_maybe_log(TCGContext *tcg_ctx, uint64_t cur_loc) {
TCGv_ptr tuc = tcg_const_ptr(tcg_ctx, tcg_ctx->uc);
TCGv_i64 tcur_loc = tcg_const_i64(tcg_ctx, cur_loc);
gen_helper_afl_maybe_log(tcg_ctx, tuc, tcur_loc);
}
static inline void gen_afl_compcov_log_16(TCGContext *tcg_ctx, uint64_t cur_loc,
TCGv_i32 arg1, TCGv_i32 arg2) {
#if defined(AFL_DEBUG)
printf("[d] Emitting 16 bit COMPCOV instrumentation for loc 0x%lx\n", cur_loc);
#endif
TCGv_ptr tuc = tcg_const_ptr(tcg_ctx, tcg_ctx->uc);
TCGv_i64 tcur_loc = tcg_const_i64(tcg_ctx, cur_loc);
gen_helper_afl_compcov_log_16(tcg_ctx, tuc, tcur_loc, arg1, arg2);
}
static inline void gen_afl_compcov_log_32(TCGContext *tcg_ctx, uint64_t cur_loc,
TCGv_i32 arg1, TCGv_i32 arg2) {
#if defined(AFL_DEBUG)
printf("[d] Emitting 32 bit COMPCOV instrumentation for loc 0x%lux\n", cur_loc);
#endif
TCGv_ptr tuc = tcg_const_ptr(tcg_ctx, tcg_ctx->uc);
TCGv_i64 tcur_loc = tcg_const_i64(tcg_ctx, cur_loc);
gen_helper_afl_compcov_log_32(tcg_ctx, tuc, tcur_loc, arg1, arg2);
}
static inline void gen_afl_compcov_log_64(TCGContext *tcg_ctx, uint64_t cur_loc,
TCGv_i64 arg1, TCGv_i64 arg2) {
#if defined(AFL_DEBUG)
printf("[d] Emitting 64 bit COMPCOV instrumentation for loc 0x%lux\n", cur_loc);
#endif
TCGv_ptr tuc = tcg_const_ptr(tcg_ctx, tcg_ctx->uc);
TCGv_i64 tcur_loc = tcg_const_i64(tcg_ctx, cur_loc);
gen_helper_afl_compcov_log_64(tcg_ctx, tuc, tcur_loc, arg1, arg2);
}