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Without ldb we have the following error when running ./configure with
CC=afl-lto with source code that uses the autools build system:
clang-13: error: invalid linker name in argument
'--ld-path=/usr/bin/ld.lld'
And without clang we can't even build a simple hello world:
$ afl-lto ~/main.c
afl-cc++4.00c by Michal Zalewski, Laszlo Szekeres, Marc Heuse - mode: LLVM-LTO-PCGUARD
[-] PROGRAM ABORT : Oops, failed to execute '/usr/bin/clang' - check your PATH
Location : main(), src/afl-cc.c:2145
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
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Without that fix we have:
[+] llvm_mode detected llvm 11+, enabling afl-lto LTO implementation
GNUmakefile.llvm:120: we have trouble finding clang - llvm-config is not helping us
GNUmakefile.llvm:135: we have trouble finding clang++ - llvm-config is not helping us
GNUmakefile.llvm:223: clang option -flto is not working - maybe LLVMgold.so not found - cannot enable LTO mode
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
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Without that fix, we have:
| [-] You seem to need to install the package python3-dev,
python2-dev or python-dev (and perhaps python[23]-apt),
but it is optional so we continue
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
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We need lld not lldb. Without lld we have:
[+] llvm_mode detected llvm 11+, enabling afl-lto LTO implementation
GNUmakefile.llvm:218: ld.lld not found, cannot enable LTO mode
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
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Without that fix, with libremakepkg, we have:
| [+] llvm_mode detected llvm < 11, afl-lto LTO will not be build.
| GNUmakefile.llvm:120: we have trouble finding clang - llvm-config is not helping us
| GNUmakefile.llvm:135: we have trouble finding clang++ - llvm-config is not helping us
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
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Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
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The AFL website[1] states the following:
Note: AFL hasn't been updated for a couple of years; while it
should still work fine, a more complex fork with a variety of
improvements and additional features, known as AFL++, is available
from other members of the community and might be worth checking
out.
[1]https://lcamtuf.coredump.cx/afl/
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
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