Bug 275643 – Enable offline asm alt entries on linux and on debug builds

• Component: JavaScriptCore
• Status: REOPENED

[Justin Michaud]

Enable offline asm alt entries on linux and on debug builds

[Justin Michaud]

Pull request: https://github.com/WebKit/WebKit/pull/29960

[EWS]

Committed 280250@main (36e90ed8d1ae): <https://commits.webkit.org/280250@main>

Reviewed commits have been landed. Closing PR #29960 and removing active labels.

[Radar WebKit Bug Importer]

<rdar://problem/130280027>

[WebKit Commit Bot]

Re-opened since this is blocked by bug 275774

[Philippe Normand]

FAILED: Source/JavaScriptCore/CMakeFiles/LowLevelInterpreterLib.dir/llint/LowLevelInterpreter.cpp.o 
/usr/bin/ccache /usr/lib/sdk/llvm18/bin/clang++ -DBUILDING_GTK__=1 -DBUILDING_WEBKIT=1 -DBUILDING_WITH_CMAKE=1 -DBWRAP_EXECUTABLE=\"/usr/bin/bwrap\" -DDBUS_PROXY_EXECUTABLE=\"/usr/bin/xdg-dbus-proxy\" -DGETTEXT_PACKAGE=\"WebKitGTK-6.0\" -DHAVE_CONFIG_H=1 -DJSC_GLIB_API_ENABLED -DPAS_BMALLOC=1 -I/app/webkit/WebKitBuild/GTK/Release/JavaScriptCore/Headers -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/app/webkit/WebKitBuild/GTK/Release -I/app/webkit/Source/JavaScriptCore -I/app/webkit/Source/JavaScriptCore/API -I/app/webkit/Source/JavaScriptCore/assembler -I/app/webkit/Source/JavaScriptCore/b3 -I/app/webkit/Source/JavaScriptCore/b3/air -I/app/webkit/Source/JavaScriptCore/bindings -I/app/webkit/Source/JavaScriptCore/builtins -I/app/webkit/Source/JavaScriptCore/bytecode -I/app/webkit/Source/JavaScriptCore/bytecompiler -I/app/webkit/Source/JavaScriptCore/dfg -I/app/webkit/Source/JavaScriptCore/disassembler -I/app/webkit/Source/JavaScriptCore/disassembler/ARM64 -I/app/webkit/Source/JavaScriptCore/disassembler/zydis/Zydis -I/app/webkit/Source/JavaScriptCore/domjit -I/app/webkit/Source/JavaScriptCore/ftl -I/app/webkit/Source/JavaScriptCore/fuzzilli -I/app/webkit/Source/JavaScriptCore/heap -I/app/webkit/Source/JavaScriptCore/debugger -I/app/webkit/Source/JavaScriptCore/inspector -I/app/webkit/Source/JavaScriptCore/inspector/agents -I/app/webkit/Source/JavaScriptCore/inspector/augmentable -I/app/webkit/Source/JavaScriptCore/inspector/remote -I/app/webkit/Source/JavaScriptCore/interpreter -I/app/webkit/Source/JavaScriptCore/jit -I/app/webkit/Source/JavaScriptCore/llint -I/app/webkit/Source/JavaScriptCore/parser -I/app/webkit/Source/JavaScriptCore/profiler -I/app/webkit/Source/JavaScriptCore/runtime -I/app/webkit/Source/JavaScriptCore/tools -I/app/webkit/Source/JavaScriptCore/wasm -I/app/webkit/Source/JavaScriptCore/wasm/js -I/app/webkit/Source/JavaScriptCore/yarr -I/app/webkit/WebKitBuild/GTK/Release/JavaScriptCore/DerivedSources -I/app/webkit/WebKitBuild/GTK/Release/JavaScriptCore/DerivedSources/inspector -I/app/webkit/WebKitBuild/GTK/Release/JavaScriptCore/DerivedSources/runtime -I/app/webkit/WebKitBuild/GTK/Release/JavaScriptCore/DerivedSources/yarr -I/app/webkit/Source/JavaScriptCore/API/glib -I/app/webkit/WebKitBuild/GTK/Release/JavaScriptCoreGLib/DerivedSources -I/app/webkit/WebKitBuild/GTK/Release/JavaScriptCoreGLib/DerivedSources/jsc -I/app/webkit/WebKitBuild/GTK/Release/JavaScriptCoreGLib/Headers -I/app/webkit/Source/JavaScriptCore/inspector/remote/glib -I/app/webkit/WebKitBuild/GTK/Release/WTF/Headers -I/app/webkit/Source/ThirdParty/libsysprof-capture -I/app/webkit/WebKitBuild/GTK/Release/bmalloc/Headers -fdiagnostics-color=always -fcolor-diagnostics -Wextra -Wall -pipe -Wno-noexcept-type -Wno-psabi -Wno-misleading-indentation -Wno-parentheses-equality -Qunused-arguments -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -fno-strict-aliasing -fno-exceptions -fno-rtti -fcoroutines -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=c++23 -fPIC -fvisibility=hidden -MD -MT Source/JavaScriptCore/CMakeFiles/LowLevelInterpreterLib.dir/llint/LowLevelInterpreter.cpp.o -MF Source/JavaScriptCore/CMakeFiles/LowLevelInterpreterLib.dir/llint/LowLevelInterpreter.cpp.o.d -o Source/JavaScriptCore/CMakeFiles/LowLevelInterpreterLib.dir/llint/LowLevelInterpreter.cpp.o -c /app/webkit/Source/JavaScriptCore/llint/LowLevelInterpreter.cpp
<inline asm>:9:1: error: unknown directive
    9 | .alt_entry llintPCRangeStart
      | ^
<inline asm>:18:1: error: unknown directive
   18 | .alt_entry vmEntryToJavaScript
      | ^
<inline asm>:44:1: error: unknown directive
   44 | .alt_entry jsc_llint_doVMEntry__copyHeaderLoop
      | ^
<inline asm>:66:1: error: unknown directive
   66 | .alt_entry jsc_llint_doVMEntry__fillExtraArgsLoop
      | ^
<inline asm>:77:1: error: unknown directive
   77 | .alt_entry jsc_llint_doVMEntry__copyArgs
      | ^
<inline asm>:85:1: error: unknown directive
   85 | .alt_entry jsc_llint_doVMEntry__copyArgsLoop
      | ^
<inline asm>:98:1: error: unknown directive
   98 | .alt_entry jsc_llint_doVMEntry__copyArgsDone
      | ^
<inline asm>:110:1: error: unknown directive
  110 | .alt_entry llint_call_javascript
      | ^
<inline asm>:113:1: error: symbol 'llint_call_javascript' is already defined
  113 | llint_call_javascript:
      | ^
<inline asm>:131:1: error: unknown directive
  131 | .alt_entry vmEntryToNative
      | ^
<inline asm>:157:1: error: unknown directive
  157 | .alt_entry jsc_llint_0_doVMEntry__copyHeaderLoop
      | ^
<inline asm>:179:1: error: unknown directive
  179 | .alt_entry jsc_llint_0_doVMEntry__fillExtraArgsLoop
      | ^
<inline asm>:190:1: error: unknown directive
  190 | .alt_entry jsc_llint_0_doVMEntry__copyArgs
      | ^
<inline asm>:198:1: error: unknown directive
  198 | .alt_entry jsc_llint_0_doVMEntry__copyArgsLoop
      | ^
<inline asm>:211:1: error: unknown directive
  211 | .alt_entry jsc_llint_0_doVMEntry__copyArgsDone
      | ^
<inline asm>:236:1: error: unknown directive
  236 | .alt_entry vmEntryToYarrJIT
      | ^
<inline asm>:248:1: error: unknown directive
  248 | .alt_entry vmEntryCustomGetter
      | ^
<inline asm>:257:1: error: unknown directive
  257 | .alt_entry vmEntryCustomSetter
      | ^
<inline asm>:266:1: error: unknown directive
  266 | .alt_entry vmEntryHostFunction
      | ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
ninja: build stopped: subcommand failed.

[Fujii Hironori]

It broke Windows and PlayStation Debug builds, too.