From 8c0d247126803cc255b0898969f54b7c635dbcac Mon Sep 17 00:00:00 2001 From: Andrea Fioraldi Date: Wed, 27 Nov 2019 16:16:17 +0100 Subject: qemu readme reserved va trick --- qemu_mode/README.md | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'qemu_mode') diff --git a/qemu_mode/README.md b/qemu_mode/README.md index c88c1e41..87027f63 100644 --- a/qemu_mode/README.md +++ b/qemu_mode/README.md @@ -46,6 +46,11 @@ You can also compile statically-linked binaries by setting STATIC=1. This can be useful when compiling QEMU on a different system than the one you're planning to run the fuzzer on and is most often used with the HOST variable. +Note: when targetting the i386 architecture, on some bianries the forkserver +handshake may fail due to the lack of reversed memory. Fix it with + +export QEMU_RESERVED_VA=0x1000000 + Note: if you want the QEMU helper to be installed on your system for all users, you need to build it before issuing 'make install' in the parent directory. -- cgit 1.4.1