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60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/*
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american fuzzy lop++ - unicorn instrumentation
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----------------------------------------------
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Originally written by Andrew Griffiths <agriffiths@google.com> and
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Michal Zalewski
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Adapted for afl-unicorn by Dominik Maier <mail@dmnk.co>
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CompareCoverage and NeverZero counters by Andrea Fioraldi
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<andreafioraldi@gmail.com>
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Copyright 2015, 2016, 2017 Google Inc. All rights reserved.
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Copyright 2019 AFLplusplus Project. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at:
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http://www.apache.org/licenses/LICENSE-2.0
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This code is a shim patched into the separately-distributed source
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code of Unicorn 1.0.1. It leverages the built-in QEMU tracing functionality
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to implement AFL-style instrumentation and to take care of the remaining
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parts of the AFL fork server logic.
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The resulting libunicorn binary is essentially a standalone instrumentation
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tool; for an example of how to leverage it for other purposes, you can
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have a look at afl-showmap.c.
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*/
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static inline void gen_afl_compcov_log_16(TCGContext *tcg_ctx, uint64_t cur_loc,
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TCGv_i64 arg1, TCGv_i64 arg2) {
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TCGv_ptr tuc = tcg_const_ptr(tcg_ctx, tcg_ctx->uc);
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TCGv_i64 tcur_loc = tcg_const_i64(tcg_ctx, cur_loc);
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gen_helper_afl_compcov_log_16(tcg_ctx, tuc, tcur_loc, arg1, arg2);
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}
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static inline void gen_afl_compcov_log_32(TCGContext *tcg_ctx, uint64_t cur_loc,
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TCGv_i64 arg1, TCGv_i64 arg2) {
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TCGv_ptr tuc = tcg_const_ptr(tcg_ctx, tcg_ctx->uc);
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TCGv_i64 tcur_loc = tcg_const_i64(tcg_ctx, cur_loc);
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gen_helper_afl_compcov_log_32(tcg_ctx, tuc, tcur_loc, arg1, arg2);
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}
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static inline void gen_afl_compcov_log_64(TCGContext *tcg_ctx, uint64_t cur_loc,
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TCGv_i64 arg1, TCGv_i64 arg2) {
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TCGv_ptr tuc = tcg_const_ptr(tcg_ctx, tcg_ctx->uc);
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TCGv_i64 tcur_loc = tcg_const_i64(tcg_ctx, cur_loc);
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gen_helper_afl_compcov_log_64(tcg_ctx, tuc, tcur_loc, arg1, arg2);
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}
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