Allow more closures #10
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The fuzzer has its own panic hook, which is useful when not using `-C panic=abort`.
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bors r+ |
Build succeeded |
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late to the party, but it looks good to me at first glance 👍 |
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Perfect! So it's now released in version 0.5.27 🎉 |
eddyp
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Jun 14, 2020
* Add liblzma-dev in the list of prerequisites (found as needed on Debian 9 Stretch) - fixes rust-fuzz#38 * Fix incorrect instructions on how to run run-debug session. With the provided instructions the follwing error appears: eddy@aptonia:~/usr/src/rust/learn-rust/fuzz/honggfuzz-rs/example-honggfuzz-rs $ cargo hfuzz run-debug example hfuzz_workspace/*.fuzz /usr/bin/ld.gold Finished dev [unoptimized + debuginfo] target(s) in 0.04s bind: Invalid command `enable-meta-key'. (lldb) command script import "/home/eddy/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/etc/lldb_rust_formatters.py" (lldb) type summary add --no-value --python-function lldb_rust_formatters.print_val -x ".*" --category Rust (lldb) type category enable Rust (lldb) target create "hfuzz_target/x86_64-unknown-linux-gnu/debug/example" Current executable set to 'hfuzz_target/x86_64-unknown-linux-gnu/debug/example' (x86_64). (lldb) b rust_panic Breakpoint 1: where = example`rust_panic + 19, address = 0x000000000001cc23 (lldb) r error: failed to open "hfuzz_workspace/*.fuzz" ... Instead, with the proposed (more copy-paste friendly) command we get: eddy@aptonia:~/usr/src/rust/learn-rust/fuzz/honggfuzz-rs/example-honggfuzz-rs $ cargo hfuzz run-debug example hfuzz_workspace/*/*.fuzz /usr/bin/ld.gold Finished dev [unoptimized + debuginfo] target(s) in 0.02s bind: Invalid command `enable-meta-key'. (lldb) command script import "/home/eddy/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/etc/lldb_rust_formatters.py" (lldb) type summary add --no-value --python-function lldb_rust_formatters.print_val -x ".*" --category Rust (lldb) type category enable Rust (lldb) target create "hfuzz_target/x86_64-unknown-linux-gnu/debug/example" Current executable set to 'hfuzz_target/x86_64-unknown-linux-gnu/debug/example' (x86_64). (lldb) b rust_panic Breakpoint 1: where = example`rust_panic + 19, address = 0x000000000001cc23 (lldb) r thread 'main' panicked at 'BOOM', src/main.rs:23:13 stack backtrace: 0: backtrace::backtrace::libunwind::trace at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86 1: backtrace::backtrace::trace_unsynchronized at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66 2: std::sys_common::backtrace::_print_fmt at src/libstd/sys_common/backtrace.rs:78 3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt at src/libstd/sys_common/backtrace.rs:59 4: core::fmt::write at src/libcore/fmt/mod.rs:1063 5: std::io::Write::write_fmt at src/libstd/io/mod.rs:1426 6: std::sys_common::backtrace::_print at src/libstd/sys_common/backtrace.rs:62 7: std::sys_common::backtrace::print at src/libstd/sys_common/backtrace.rs:49 8: std::panicking::default_hook::{{closure}} at src/libstd/panicking.rs:204 9: std::panicking::default_hook at src/libstd/panicking.rs:224 10: std::panicking::rust_panic_with_hook at src/libstd/panicking.rs:470 11: std::panicking::begin_panic at /rustc/8d69840ab92ea7f4d323420088dd8c9775f180cd/src/libstd/panicking.rs:397 12: example::main::{{closure}} at src/main.rs:23 13: honggfuzz::fuzz at /home/eddy/.cargo/registry/src/github.com-1ecc6299db9ec823/honggfuzz-0.5.49/src/lib.rs:329 14: example::main at src/main.rs:15 15: std::rt::lang_start::{{closure}} at /rustc/8d69840ab92ea7f4d323420088dd8c9775f180cd/src/libstd/rt.rs:67 16: std::rt::lang_start_internal::{{closure}} at src/libstd/rt.rs:52 17: std::panicking::try::do_call at src/libstd/panicking.rs:303 18: __rust_maybe_catch_panic at src/libpanic_unwind/lib.rs:86 19: std::panicking::try at src/libstd/panicking.rs:281 20: std::panic::catch_unwind at src/libstd/panic.rs:394 21: std::rt::lang_start_internal at src/libstd/rt.rs:51 22: std::rt::lang_start at /rustc/8d69840ab92ea7f4d323420088dd8c9775f180cd/src/libstd/rt.rs:67 23: main 24: __libc_start_main 25: _start note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. Process 20748 stopped * thread rust-fuzz#1: tid = 20748, 0x0000555555570c23 example`rust_panic + 19 at panicking.rs:522, name = 'example', stop reason = breakpoint 1.1 frame #0: 0x0000555555570c23 example`rust_panic + 19 at panicking.rs:522 Process 20748 launched: '/home/eddy/usr/src/rust/learn-rust/fuzz/honggfuzz-rs/example-honggfuzz-rs/hfuzz_target/x86_64-unknown-linux-gnu/debug/example' (x86_64) (lldb) bt * thread rust-fuzz#1: tid = 20748, 0x0000555555570c23 example`rust_panic + 19 at panicking.rs:522, name = 'example', stop reason = breakpoint 1.1 * frame #0: 0x0000555555570c23 example`rust_panic + 19 at panicking.rs:522 frame rust-fuzz#1: 0x0000555555570c05 example`std::panicking::rust_panic_with_hook::h1f2449d529a25f22 + 613 at panicking.rs:492 frame rust-fuzz#2: 0x0000555555566f31 example`std::panicking::begin_panic::h6b93f15a3a49143e + 161 at panicking.rs:397 frame rust-fuzz#3: 0x0000555555560ddf example`example::main::_$u7b$$u7b$closure$u7d$$u7d$::h133bb93c90f06ee6 + 319 at main.rs:23 frame rust-fuzz#4: 0x000055555556074a example`honggfuzz::fuzz::hff971e0d42e0e071 + 394 at lib.rs:329 frame rust-fuzz#5: 0x00005555555615a8 example`example::main::h23bfee7ceacfd6a7 + 8 at main.rs:15 frame rust-fuzz#6: 0x000055555556164b example`std::rt::lang_start::_$u7b$$u7b$closure$u7d$$u7d$::h4f84ee5cbd303f5c + 11 at rt.rs:67 frame rust-fuzz#7: 0x00005555555705f3 example`std::panicking::try::do_call::h0b6fc9f6090c1e2b + 19 at rt.rs:52 frame rust-fuzz#8: 0x0000555555572417 example`__rust_maybe_catch_panic + 23 at lib.rs:86 frame rust-fuzz#9: 0x0000555555570ffc example`std::rt::lang_start_internal::hcea4e704875ab132 + 892 at panicking.rs:281 frame rust-fuzz#10: 0x0000555555561627 example`std::rt::lang_start::h9f940eb84f79aaf4 + 71 at rt.rs:67 frame rust-fuzz#11: 0x00005555555615da example`main + 42 frame rust-fuzz#12: 0x00007ffff721a2e1 libc.so.6`__libc_start_main + 241 frame rust-fuzz#13: 0x000055555556045a example`_start + 42 (lldb) quit Quitting LLDB will kill one or more processes. Do you really want to proceed: [Y/n] Signed-off-by: Eddy Petrișor <eddy.petrisor@gmail.com>
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This PR is based on the work from:
fuzz!macro due toSafeUnwindrequirement #9