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authorChristian Krinitsin <mail@krinitsin.com>2025-07-08 13:28:15 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-07-08 13:28:28 +0200
commit5aa276efcbd67f4300ca1a7f809c6e00aadb03da (patch)
tree9b8f0e074014cda8d42f5a97a95bc25082d8b764 /results/classifier/zero-shot-user-mode/output/syscall/1895
parent1a3c4faf4e0a25ed0b86e8739d5319a634cb9112 (diff)
downloademulator-bug-study-5aa276efcbd67f4300ca1a7f809c6e00aadb03da.tar.gz
emulator-bug-study-5aa276efcbd67f4300ca1a7f809c6e00aadb03da.zip
restructure results
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+++ /dev/null
@@ -1,152 +0,0 @@
-syscall: 0.432
-runtime: 0.352
-instruction: 0.215
-
-
-
-qemu-user uses fixed stack size and ignores RLIMIT_STACK request, causing some guest programs to crash
-Description of problem:
-When compiling a source file, g++ segmentation faults in qemu-user riscv64. But it doesn't fail on real riscv64 boards.
-
-We discovered this problem while compiling nodejs-lts-hydrogen. The source file has been reduced to 5KB by cvise.
-Steps to reproduce:
-1. Setup an Arch Linux riscv64 qemu-user container: https://github.com/felixonmars/archriscv-packages/wiki/Setup-Arch-Linux-RISC-V-Development-Environment
-2. Start the container: `sudo systemd-nspawn -D ./archriscv -a -U`
-3. Install gcc inside the container: `sudo pacman -Syu gcc`
-4. Run the following command in the container: `g++ -S testcase.i -w -fpreprocessed -o /dev/null` [testcase.i](/uploads/d63b1867a458a240ef0d90c760d76bc7/testcase.i)
-5. g++ segmentation faults: `g++: internal compiler error: Segmentation fault signal terminated program cc1plus`
-Additional information:
-Initially I thought this is a g++ bug. But I can't reproduce this bug on real riscv64 hardware.
-
-g++ version: g++ (GCC) 13.2.1 20230801
-
-testcase.i:
-
-```c++
-namespace std {
-typedef long unsigned size_t;
-inline namespace __cxx11 {}
-} // namespace std
-typedef char uint8_t;
-namespace std {
-template <typename _Default, typename, template <typename> class>
-struct __detector {
- using type = _Default;
-};
-template <typename _Default, template <typename> class _Op>
-using __detected_or = __detector<_Default, void, _Op>;
-template <typename _Default, template <typename> class _Op>
-using __detected_or_t = typename __detected_or<_Default, _Op>::type;
-template <typename> class allocator;
-namespace __cxx11 {
-template <typename _CharT, typename = _CharT, typename = allocator<_CharT>>
-class basic_string;
-}
-typedef basic_string<char> string;
-} // namespace std
-template <typename _Tp> class __new_allocator {
-public:
- typedef _Tp value_type;
-};
-namespace std {
-template <typename _Tp> using __allocator_base = __new_allocator<_Tp>;
-template <typename _Tp> class allocator : public __allocator_base<_Tp> {};
-template <class _E> class initializer_list {
- typedef size_t size_type;
- typedef _E *iterator;
- iterator _M_array;
- size_type _M_len;
-};
-struct __allocator_traits_base {
- template <typename _Tp> using __pointer = typename _Tp::const_pointer;
-};
-template <typename _Alloc> struct allocator_traits : __allocator_traits_base {
- typedef typename _Alloc::value_type value_type;
- using pointer = __detected_or_t<value_type, __pointer>;
-};
-} // namespace std
-namespace __gnu_cxx {
-template <typename _Alloc>
-struct __alloc_traits : std::allocator_traits<_Alloc> {};
-} // namespace __gnu_cxx
-namespace std {
-namespace __cxx11 {
-template <typename _CharT, typename, typename _Alloc> class basic_string {
- typedef __gnu_cxx::__alloc_traits<_Alloc> _Alloc_traits;
-
-public:
- typedef typename _Alloc_traits::pointer pointer;
- struct _Alloc_hider {
- _Alloc_hider(pointer, _Alloc);
- } _M_dataplus;
- pointer _M_local_data();
- basic_string(_CharT *, _Alloc __a = _Alloc())
- : _M_dataplus(_M_local_data(), __a) {}
- ~basic_string();
-};
-} // namespace __cxx11
-} // namespace std
-namespace v8 {
-class StartupData {};
-} // namespace v8
-namespace std {
-template <typename _Tp> class vector {
-public:
- typedef _Tp value_type;
- vector(initializer_list<value_type>);
-};
-namespace builtins {
-struct CodeCacheInfo {
- string id;
- vector<uint8_t> data;
-};
-} // namespace builtins
-struct IsolateDataSerializeInfo {};
-struct EnvSerializeInfo {};
-struct SnapshotMetadata {
- enum { kDefault } type;
- string node_version;
- string node_arch;
- string v8_cache_version_tag;
-};
-struct SnapshotData {
- enum { kNotOwned } data_ownership;
- SnapshotMetadata metadata;
- v8::StartupData v8_snapshot_blob_data;
- IsolateDataSerializeInfo isolate_data_info;
- EnvSerializeInfo env_info;
- vector<builtins::CodeCacheInfo> code_cache;
-} snapshot_data{
- SnapshotData::kNotOwned,
- SnapshotMetadata::kDefault,
- "",
- "",
- "",
- {},
- {},
- {},
- {{""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""},
- {""}, {""}, {""}, {""}, {""}, {""}, {""}, {""}}};
-} // namespace std
-```