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done implementing AFL_MAP_SIZE

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This commit is contained in:
van Hauser
2020-04-17 10:08:56 +02:00
parent 5b70d23211
commit ef311ec70c
5 changed files with 41 additions and 13 deletions
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10
llvm_mode/afl-clang-fast.c
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@ -796,6 +796,16 @@ int main(int argc, char **argv, char **envp) {
}
u8 *ptr2;
if (!be_quiet && instrument_mode != INSTRUMENT_LTO &&
((ptr2 = getenv("AFL_MAP_SIZE")) || (ptr2 = getenv("AFL_MAPSIZE")))) {
u32 map_size = atoi(ptr2);
if (map_size != MAP_SIZE)
FATAL("AFL_MAP_SIZE is not supported by afl-clang-fast");
}
if (debug) {
SAYF(cMGN "[D]" cRST " cd \"%s\";", getthecwd());

26
llvm_mode/afl-llvm-lto-instrumentation.so.cc
View File

@ -608,20 +608,22 @@ bool AFLLTOPass::runOnModule(Module &M) {
}
// save highest location ID to global variable
// do this after each function to fail faster
if (afl_global_id > MAP_SIZE) {
}
uint32_t pow2map = 1, map = afl_global_id;
while ((map = map >> 1))
pow2map++;
FATAL(
"We have %u blocks to instrument but the map size is only %u! Edit "
"config.h and set MAP_SIZE_POW2 from %u to %u, then recompile "
"afl-fuzz and llvm_mode.",
afl_global_id, MAP_SIZE, MAP_SIZE_POW2, pow2map);
// save highest location ID to global variable
// do this after each function to fail faster
if (!be_quiet && afl_global_id > MAP_SIZE) {
}
uint32_t pow2map = 1, map = afl_global_id;
while ((map = map >> 1))
pow2map++;
WARNF(
"We have %u blocks to instrument but the map size is only %u. Either "
"edit config.h and set MAP_SIZE_POW2 from %u to %u, then recompile "
"afl-fuzz and llvm_mode and then make this target - or set "
"AFL_MAP_SIZE with at least size %u when running afl-fuzz with this "
"target.",
afl_global_id, MAP_SIZE, MAP_SIZE_POW2, pow2map, afl_global_id);
}