From 68e18dbb7a261b0343bc3580f26cf59531c18152 Mon Sep 17 00:00:00 2001 From: Dominik Maier Date: Wed, 18 Nov 2020 03:09:50 +0100 Subject: more info about child_debug --- docs/env_variables.md | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'docs') diff --git a/docs/env_variables.md b/docs/env_variables.md index 1ce6f206..e6f9c275 100644 --- a/docs/env_variables.md +++ b/docs/env_variables.md @@ -389,7 +389,11 @@ checks or alter some of the more exotic semantics of the tool: exit soon after the first crash is found. - Setting `AFL_DEBUG_CHILD` will not suppress the child output. + This lets you see all output of the child, making setup issues obvious. + For example, in an unicornafl harness, you might see python stacktraces. + You may also see other logs that way, indicating why the forkserver won't start. Not pretty but good for debugging purposes. + Note that `AFL_DEBUG_CHILD_OUTPUT` is deprecated. - Setting `AFL_NO_CPU_RED` will not display very high cpu usages in red color. -- cgit 1.4.1