Changeset 239199 in webkit for trunk/Source/JavaScriptCore/offlineasm

Timestamp:

Dec 13, 2018, 11:17:32 PM (6 years ago)

Author:

[email protected]

Message:

Improve GDB output for LLInt on Linux
​https://bugs.webkit.org/show_bug.cgi?id=192660

Reviewed by Yusuke Suzuki.

Annotate assembly code generated for LLInt with the bytecode operation. When debugging
LLInt assembly code GDB is then able to show which bytecode instruction is implemented by
the current assembly code. This also works for linux-perf.

• llint/LowLevelInterpreter.cpp:
• offlineasm/arm.rb:

File:

• trunk/Source/JavaScriptCore/offlineasm/arm.rb (modified) (1 diff)

trunk/Source/JavaScriptCore/offlineasm/arm.rb

@@ -684 +684 @@
 
             uid = $asm.newUID
-            gotLabel = "L_offlineasm_arm_got_#{uid}"
-            offsetLabel = "L_offlineasm_arm_got_offset_#{uid}"
+            gotLabel = Assembler.localLabelReference("offlineasm_arm_got_#{uid}")
+            offsetLabel = Assembler.localLabelReference("offlineasm_arm_got_offset_#{uid}")
 
             $asm.puts "ldr #{dest.armOperand}, #{gotLabel}"