[Bug]: panic when decompile

[lidarbtc]

Component

Heimdall CLI

Version

0.2.1

Please check the following

• This is not a duplicate issue
• I have checked the wiki and tried troubleshooting the issue

Operating System

Linux

Describe the issue you are facing

I check #30 this issue and his contract is work well in 0.2.1 but my contract is not.

environment : klaytn mainnet (ether hardfork and other klaytn contract is work well)

Error contract : 0x4f5d9f3b17988aa047e6f1bc511fec0bf25691f4

command :

heimdall decompile 0x4f5d9f3b17988aa047e6f1bc511fec0bf25691f4 --include-sol -r https://public-node-api.klaytnapi.com/v1/cypress

error :

success: wrote disassembled bytecode to '/home/hj/output/0x4f5d9f3b17988aa047e6f1bc511fec0bf25691f4/disassembled.asm' .
info: ⠙ analyzing '0x4d49e87d'                                                  fatal: thread 'main' encountered a fatal error: 'panicked at 'called `Option::unwrap()` on a `None` value', src/decompile/analyze.rs:117:36'!
fatal: Stack Trace:

   0:     0x55a7754bf78f - backtrace::capture::Backtrace::new::hefe871ffee13979a
   1:     0x55a7755c1374 - heimdall::main::{{closure}}::h382a421ae6620b25
   2:     0x55a7758068b2 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h44df53ea2a13204b
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/alloc/src/boxed.rs:2001:9
                           std::panicking::rust_panic_with_hook::hfd45b6b6c12d9fa5
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panicking.rs:692:13
   3:     0x55a775806523 - std::panicking::begin_panic_handler::{{closure}}::hf591e8609a75bd4b
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panicking.rs:577:13
   4:     0x55a7758064be - std::sys_common::backtrace::__rust_end_short_backtrace::h81899558795e4ff7
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/sys_common/backtrace.rs:137:18
   5:     0x55a775806491 - rust_begin_unwind
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panicking.rs:575:5
   6:     0x55a77547f7d2 - core::panicking::panic_fmt::h4235fa9b4675b332
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/core/src/panicking.rs:65:14
   7:     0x55a77547f8cc - core::panicking::panic::h9ced3cf2f605ba6a
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/core/src/panicking.rs:115:5
   8:     0x55a7755cc563 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
   9:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  10:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  11:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  12:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  13:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  14:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  15:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  16:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  17:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  18:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  19:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  20:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  21:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  22:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  23:     0x55a7755cba57 - heimdall::decompile::analyze::<impl heimdall::decompile::util::VMTrace>::analyze::h183fd40b5ac1e62a
  24:     0x55a7755a79e0 - heimdall::decompile::decompile::hf40dc136b5a01837
  25:     0x55a7755bfe3e - heimdall::main::h874210b1c8a7d14f
  26:     0x55a7755d32e3 - std::sys_common::backtrace::__rust_begin_short_backtrace::h8c3b0cd6d4a8ed1f
  27:     0x55a7755b4369 - std::rt::lang_start::{{closure}}::h6c25724aac55ad68
  28:     0x55a7757dff44 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h072eb4cd8da964ba
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/core/src/ops/function.rs:286:13
                           std::panicking::try::do_call::h8eca204fe9266946
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panicking.rs:483:40
                           std::panicking::try::h12574e1b7b2cbacb
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panicking.rs:447:19
                           std::panic::catch_unwind::hf71522d4448329d6
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panic.rs:137:14
                           std::rt::lang_start_internal::{{closure}}::h65b66ac9bff580f8
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/rt.rs:148:48
                           std::panicking::try::do_call::hfff61e33ca3db9f1
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panicking.rs:483:40
                           std::panicking::try::he48c8ecead279cad
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panicking.rs:447:19
                           std::panic::catch_unwind::hd510a26bfc950ccc
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/panic.rs:137:14
                           std::rt::lang_start_internal::hc680b25eab888da9
                               at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library/std/src/rt.rs:148:20
  29:     0x55a7755bce94 - main
  30:     0x7f08c5d24d90 - __libc_start_call_main
                               at ./csu/../sysdeps/nptl/libc_start_call_main.h:58:16
  31:     0x7f08c5d24e40 - __libc_start_main_impl
                               at ./csu/../csu/libc-start.c:392:3
  32:     0x55a77549d765 - _start
  33:                0x0 - <unknown>

[Jon-Becker]

Thanks for the bug! I'll fix this in 0.2.2 later today.

This appears to affect the LOG0 opcode

[Jon-Becker]

Resolved in v0.2.2. Just a notice, the function

function initialize(address[] memory arg0, uint8[] memory arg1, string memory arg2, string memory arg3, uint256 arg4, uint256 arg5, uint256 arg6, uint256 arg7, address arg8) public payable {

is being truncated to 1000 branches, likely due to recursion or an uncaught loop. This will be fixed in the next major update.

[lidarbtc]

thank you!!