Bug 278883

Summary:

[GTK] SIGILL illegal operand in JSC::UnlinkedFunctionExecutable::linkedSourceCode

Product:

WebKit

Reporter:

Haelwenn (lanodan) Monnier <contact+bugs.webkit.org>

Component:

JavaScriptCore

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED FIXED

Severity:

Normal

Keywords:

Gtk

Priority:

Version:

WebKit Local Build

Hardware:

OS:

Linux

Attachments:

Description	Flags
LLDB logs of WebKitWebProcess (backtrace, dis, registers)	none

Haelwenn (lanodan) Monnier

Reported 2024-08-29 14:26:09 PDT

Created attachment 472352 [details] LLDB logs of WebKitWebProcess (backtrace, dis, registers) - WebKitGTK 2.44.3 - Linux cloudchaser 6.6.30-gentoo #1 SMP PREEMPT_DYNAMIC Sat Jun 8 21:50:37 2024 x86_64 - AMD Ryzen 5 PRO 3500U w/ Radeon Vega Mobile Gfx

Attachments
LLDB logs of WebKitWebProcess (backtrace, dis, registers) (61.13 KB, text/x-log) 2024-08-29 14:26 PDT, Haelwenn (lanodan) Monnier	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Haelwenn (lanodan) Monnier

Comment 1 2024-08-29 14:47:41 PDT

Also I think this is related to -ftrapv (trap on signed integer overflow) as disassembly shows ud1l (undefined instruction 1), recompiling with -fwrapv might make sense to add this flag into the buildsystem to avoid UB.

Haelwenn (lanodan) Monnier

Comment 2 2024-08-29 22:25:41 PDT

Had to remove -ftrapv, simply adding -fwrapv didn't work. Marking it as fixed as it's effectively a build configuration issue on my end.

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