Changeset 191677 in webkit for trunk/Source/JavaScriptCore/assembler/MacroAssemblerPrinter.cpp

Timestamp:

Oct 28, 2015, 10:48:10 AM (10 years ago)

Author:

[email protected]

Message:

Add ability to print the PC register from JIT'ed code.
​https://bugs.webkit.org/show_bug.cgi?id=150561

Reviewed by Geoffrey Garen.

• assembler/MacroAssemblerPrinter.cpp:

(JSC::printPC):
(JSC::MacroAssemblerPrinter::printCallback):

• assembler/MacroAssemblerPrinter.h:

(JSC::MacroAssemblerPrinter::PrintArg::PrintArg):

File:

• trunk/Source/JavaScriptCore/assembler/MacroAssemblerPrinter.cpp (modified) (2 diffs)

trunk/Source/JavaScriptCore/assembler/MacroAssemblerPrinter.cpp

@@ -90 +90 @@
 }
 
+static void printPC(CPUState& cpu)
+{
+    union {
+        void* voidPtr;
+        intptr_t intptrValue;
+    } u;
+#if CPU(X86) || CPU(X86_64)
+    u.voidPtr = cpu.eip;
+#elif CPU(ARM_TRADITIONAL) || CPU(ARM_THUMB2) || CPU(ARM64)
+    u.voidPtr = cpu.pc;
+#else
+#error "Unsupported CPU"
+#endif
+    dataLogF("pc:<%p %ld>", u.voidPtr, u.intptrValue);
+}
+
 void printRegister(CPUState& cpu, RegisterID regID)
 {
@@ -179 +195 @@
             printCPU(context->cpu, 1);
             break;
+        case Arg::Type::PCRegister:
+            printPC(context->cpu);
+            break;
         case Arg::Type::RegisterID:
             printRegister(context->cpu, arg.u.gpRegisterID);