make not working

[nitinkp470]

after setting AFL_NO_X86=1 on 64bit linux and running make. I am getting this error.

/root/TriforceAFL/qemu_mode/qemu/rules.mak:57: recipe for target 'user-exec.o' failed
make[2]: *** [user-exec.o] Error 1
Makefile:173: recipe for target 'subdir-x86_64-linux-user' failed
make[1]: *** [subdir-x86_64-linux-user] Error 2
make[1]: Leaving directory '/root/TriforceAFL/qemu_mode/qemu'
cp: cannot stat 'x86_64-linux-user/qemu-x86_64': No such file or directory
cp: cannot stat 'x86_64-softmmu/qemu-system-x86_64': No such file or directory
cp: cannot stat 'x86_64-softmmu/qemu-system-x86_64': No such file or directory
cp: cannot stat 'arm-softmmu/qemu-system-arm': No such file or directory
cp: cannot stat 'aarch64-softmmu/qemu-system-aarch64': No such file or directory
Makefile:111: recipe for target 'afl-qemu-system-trace' failed
make: *** [afl-qemu-system-trace] Error 1

[jhertz]

try building exactly as is outlined in the readmes, including using ubuntu 14.04 Trusty

you can look at the dockerfile which builds it and try and replicate that on your host OS, or just use docker to build and then copy out of the container

[kmes9940502]

Replace all "ucontext" to "ucontext_t" in qemu_mode/qemu/user-exec.o fix the problem in Ubuntu 18.04