Bug 310768 – REGRESSION(309850@main): [GTK][JSC] build-webkit --gtk --debug reports "ASSERTION FAILED: i64_load_mem" while generating WebKit-6.0.gir

• Component: JavaScriptCore
• Status: RESOLVED FIXED

[Fujii Hironori]

[GTK][JSC] build-webkit --gtk --debug reports "ASSERTION FAILED: i64_load_mem" while generating WebKit-6.0.gir

I'm using clang 18, and invoking "build-webkit --gtk --debug" with 309959@main.

FAILED: WebKit-6.0.gir /sdk/webkit/WebKitBuild/GTK/Debug/WebKit-6.0.gir 
cd /sdk/webkit && /usr/bin/cmake -E env CC=/usr/local/bin/clang (...)
ASSERTION FAILED: i64_load_mem
(char*)(untaggedPtr) - (char*)(untaggedBase) == 0x29 * alignIPInt
../../../Source/JavaScriptCore/llint/InPlaceInterpreter.cpp(79) : void JSC::IPInt::initialize()
1   0x7f03e12d80ff JSC::IPInt::initialize()
2   0x7f03e12fc339 JSC::LLInt::initialize()
3   0x7f03e173e33d JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0::operator()() const
4   0x7f03e173e295 void std::__invoke_impl<void, JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0>(std::__invoke_other, JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0&&)
5   0x7f03e173e275 std::__invoke_result<JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0>::type std::__invoke<JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0>(JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0&&)
6   0x7f03e173e258 std::call_once<JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0>(std::once_flag&, JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0&&)::{lambda()#1}::operator()() const
7   0x7f03e173e234 std::once_flag::_Prepare_execution::_Prepare_execution<std::call_once<JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0>(std::once_flag&, JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0&&)::{lambda()#1}>(JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0&)::{lambda()#1}::operator()() const
8   0x7f03e173e201 std::once_flag::_Prepare_execution::_Prepare_execution<std::call_once<JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0>(std::once_flag&, JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0&&)::{lambda()#1}>(JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0&)::{lambda()#1}::__invoke()
9   0x7f03dcb3ded3 __pthread_once_slow
10  0x7f03e173e1ab __gthread_once(int*, void (*)())
11  0x7f03e1702ac5 void std::call_once<JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0>(std::once_flag&, JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)::$_0&&)
12  0x7f03e1702a84 JSC::initializeWithOptionsCustomization(WTF::ScopedLambda<void ()> const&)
13  0x7f03e1702a52 _ZN3JSC10initializeITkN3WTF9InvocableIFvvEEEZNS_10initializeEvE3$_0EEvRKT_
14  0x7f03e1702a21 JSC::initialize()
15  0x7f03ee1b5ca9 WebKit::InitializeWebKit2()
16  0x7f03ee78c7b7 WebKit::webkitInitialize()::$_0::operator()() const
17  0x7f03ee78c775 void std::__invoke_impl<void, WebKit::webkitInitialize()::$_0>(std::__invoke_other, WebKit::webkitInitialize()::$_0&&)
18  0x7f03ee78c755 std::__invoke_result<WebKit::webkitInitialize()::$_0>::type std::__invoke<WebKit::webkitInitialize()::$_0>(WebKit::webkitInitialize()::$_0&&)
19  0x7f03ee78c738 std::call_once<WebKit::webkitInitialize()::$_0>(std::once_flag&, WebKit::webkitInitialize()::$_0&&)::{lambda()#1}::operator()() const
20  0x7f03ee78c714 std::once_flag::_Prepare_execution::_Prepare_execution<std::call_once<WebKit::webkitInitialize()::$_0>(std::once_flag&, WebKit::webkitInitialize()::$_0&&)::{lambda()#1}>(WebKit::webkitInitialize()::$_0&)::{lambda()#1}::operator()() const
21  0x7f03ee78c6e1 std::once_flag::_Prepare_execution::_Prepare_execution<std::call_once<WebKit::webkitInitialize()::$_0>(std::once_flag&, WebKit::webkitInitialize()::$_0&&)::{lambda()#1}>(WebKit::webkitInitialize()::$_0&)::{lambda()#1}::__invoke()
22  0x7f03dcb3ded3 __pthread_once_slow
23  0x7f03ee78c68b __gthread_once(int*, void (*)())
24  0x7f03ee78c5d5 void std::call_once<WebKit::webkitInitialize()::$_0>(std::once_flag&, WebKit::webkitInitialize()::$_0&&)
25  0x7f03ee78c598 WebKit::webkitInitialize()
26  0x7f03ee78f1b1 webkit_input_method_context_class_init(_WebKitInputMethodContextClass*)
27  0x7f03ee78f139 webkit_input_method_context_class_intern_init(void*, void*)
28  0x7f03dcce7ebe g_type_class_ref
29  0x55ca83026d53 dump_properties
30  0x55ca830264d2 dump_object_type
31  0x55ca83025f11 dump_type

[Fujii Hironori]

jsc also crashes.

fujii@wkdev $ ./WebKitBuild/GTK/Debug/bin/jsc
ASSERTION FAILED: i64_load_mem
(char*)(untaggedPtr) - (char*)(untaggedBase) == 0x29 * alignIPInt
../../../Source/JavaScriptCore/llint/InPlaceInterpreter.cpp(79) : void JSC::IPInt::initialize()
[...]

[Fujii Hironori]

309850@main is the regression point.

[Fujii Hironori]

*** This bug has been marked as a duplicate of bug 310834 ***

[Fujii Hironori]

Still happening even after 310045@main. Reopened.

[Fujii Hironori]

Comparing the sizes of ipint_i32_load_mem_validate of debug and release builds.

fujii@wkdev $ objdump -x WebKitBuild/GTK/Debug/Source/JavaScriptCore/CMakeFiles/LowLevelInterpreterLib.dir/llint/LowLevelInterpreter.cpp.o | grep -C5 ipint_i32_load_mem_validate
000000000002de00 g     F .text	0000000000000000 .hidden ipint_table_get_validate
0000000000000000         *UND*	0000000000000000 ipint_extern_table_get
000000000002df00 g     F .text	0000000000000000 .hidden ipint_table_set_validate
0000000000000000         *UND*	0000000000000000 ipint_extern_table_set
000000000002e000 g     F .text	0000000000000000 .hidden ipint_reserved_0x27_validate
000000000002e100 g     F .text	0000000000000000 .hidden ipint_i32_load_mem_validate
000000000002e300 g     F .text	0000000000000000 .hidden ipint_i64_load_mem_validate
000000000002e500 g     F .text	0000000000000000 .hidden ipint_f32_load_mem_validate
000000000002e700 g     F .text	0000000000000000 .hidden ipint_f64_load_mem_validate
000000000002e900 g     F .text	0000000000000000 .hidden ipint_i32_load8s_mem_validate
000000000002eb00 g     F .text	0000000000000000 .hidden ipint_i32_load8u_mem_validate
fujii@wkdev $ objdump -x WebKitBuild/GTK/Release/Source/JavaScriptCore/CMakeFiles/LowLevelInterpreterLib.dir/llint/LowLevelInterpreter.cpp.o | grep -C5 ipint_i32_load_mem_validate
0000000000025800 g     F .text	0000000000000000 .hidden ipint_table_get_validate
0000000000000000         *UND*	0000000000000000 ipint_extern_table_get
0000000000025900 g     F .text	0000000000000000 .hidden ipint_table_set_validate
0000000000000000         *UND*	0000000000000000 ipint_extern_table_set
0000000000025a00 g     F .text	0000000000000000 .hidden ipint_reserved_0x27_validate
0000000000025b00 g     F .text	0000000000000000 .hidden ipint_i32_load_mem_validate
0000000000025c00 g     F .text	0000000000000000 .hidden ipint_i64_load_mem_validate
0000000000025d00 g     F .text	0000000000000000 .hidden ipint_f32_load_mem_validate
0000000000025e00 g     F .text	0000000000000000 .hidden ipint_f64_load_mem_validate
0000000000025f00 g     F .text	0000000000000000 .hidden ipint_i32_load8s_mem_validate
0000000000026000 g     F .text	0000000000000000 .hidden ipint_i32_load8u_mem_validate

[Fujii Hironori]

Created attachment 478839 [details]
WIP patch

adding -O for debug build works around the issue.

[Fujii Hironori]

Created attachment 478840 [details]
WIP patch

[Justin Michaud]

Pull request: https://github.com/WebKit/WebKit/pull/61980

[Fujii Hironori]

Pull request: https://github.com/WebKit/WebKit/pull/62012

[EWS]

Committed 310552@main (3cd6f131ec0c): <https://commits.webkit.org/310552@main>

Reviewed commits have been landed. Closing PR #62012 and removing active labels.

[Radar WebKit Bug Importer]

<rdar://problem/174057957>