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add descriptions of env variables to afl-gcc

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hexcoder-
2020-02-17 21:24:32 +01:00
parent d606018ddb
commit df55fb1f14
2 changed files with 28 additions and 4 deletions
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28
src/afl-gcc.c
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@ -382,8 +382,32 @@ int main(int argc, char** argv) {
"You can specify custom next-stage toolchain via AFL_CC, AFL_CXX, and "
"AFL_AS.\n"
"Setting AFL_HARDEN enables hardening optimizations in the compiled "
"code.\n\n",
BIN_PATH, BIN_PATH);
"code.\n\n"
"Environment variables used by afl-gcc:\n"
"AFL_CC: path to the C compiler to use\n"
"AFL_CXX: path to the C++ compiler to use\n"
"AFL_GCJ: path to the java compiler to use\n"
"AFL_PATH: path to the instrumenting assembler\n"
"AFL_DONT_OPTIMIZE: disable optimization instead of -O3\n"
"AFL_NO_BUILTIN: compile for use with libtokencap.so\n"
"AFL_QUIET: suppress verbose output\n"
"AFL_CAL_FAST: speed up the initial calibration\n"
"AFL_HARDEN: adds code hardening to catch memory bugs\n"
"AFL_USE_ASAN: activate address sanitizer\n"
"AFL_USE_MSAN: activate memory sanitizer\n"
"AFL_USE_UBSAN: activate undefined behaviour sanitizer\n"
"\nEnvironment variables used by afl-as (called by afl-gcc):\n"
"AFL_AS: path to the assembler to use\n"
"TMPDIR: set the directory for temporary files of afl-as\n"
"TEMP: fall back path to directory for temporary files\n"
"TMP: fall back path to directory for temporary files\n"
"AFL_INST_RATIO: percentage of branches to instrument\n"
"AFL_QUIET: suppress verbose output\n"
"AFL_KEEP_ASSEMBLY: leave instrumented assembly files\n"
"AFL_AS_FORCE_INSTRUMENT: force instrumentation for asm sources\n"
, BIN_PATH, BIN_PATH);
exit(1);