Skip to content

Add an option to disable instrumenting Rust code for fuzzing #340

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
Voker57 wants to merge 1 commit into
base: main
Choose a base branch
from
Open

Add an option to disable instrumenting Rust code for fuzzing #340

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions src/options.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -126,6 +126,10 @@ pub struct BuildOptions {
#[arg(long)]
pub no_cfg_fuzzing: bool,

/// Do not instrument Rust code for fuzzing
#[arg(long)]
pub no_rust_fuzzing: bool,

#[arg(long)]
/// Don't build with the `sanitizer-coverage-trace-compares` LLVM argument
///
Expand Down
11 changes: 8 additions & 3 deletions src/project.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -163,11 +163,16 @@ impl FuzzProject {
cmd.arg("-Z").arg("build-std");
}

let mut rustflags: String = "-Cpasses=sancov-module \
let mut rustflags = String::new();

if !build.no_rust_fuzzing {
rustflags.push_str(
"-Cpasses=sancov-module \
-Cllvm-args=-sanitizer-coverage-level=4 \
-Cllvm-args=-sanitizer-coverage-inline-8bit-counters \
-Cllvm-args=-sanitizer-coverage-pc-table"
.to_owned();
-Cllvm-args=-sanitizer-coverage-pc-table",
);
}

if !build.no_trace_compares {
rustflags.push_str(" -Cllvm-args=-sanitizer-coverage-trace-compares");
Expand Down