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better explain AFL_QEMU_DEBUG_MAPS

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van Hauser
2020-03-17 12:37:20 +01:00
parent 8cc39a3590
commit 287d430fcf
1 changed files with 2 additions and 1 deletions
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qemu_mode/README.persistent.md
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@ -26,7 +26,8 @@ hexadecimal with the 0x prefix or as a decimal value.
If the target is compiled with position independant code (PIE/PIC), you must
add 0x4000000000 to that address, because qemu loads to this base address.
On strange setups the base address set by QEMU for PIE executable may change,
you can check it printing the process map using AFL_QEMU_DEBUG_MAPS=1.
you can check it printing the process map using
`AFL_QEMU_DEBUG_MAPS=1 afl-qemu-trace TARGET-BINARY`
If this address is not valid, afl-fuzz will error during startup with the
message that the forkserver was not found.