Changeset 46831 in webkit for trunk/JavaScriptCore/jit/JITStubs.cpp

Timestamp:

Aug 5, 2009, 10:22:42 PM (16 years ago)

Author:

[email protected]

Message:

2009-08-05 Zoltan Herczeg <​[email protected]>

Reviewed by Gavin Barraclough.

Add JIT support for generic ARM port without optimizations.
​https://bugs.webkit.org/show_bug.cgi?id=24986

All JIT optimizations are disabled.

Signed off by Zoltan Herczeg <​[email protected]>
Signed off by Gabor Loki <​[email protected]>

• assembler/ARMAssembler.cpp: (JSC::ARMAssembler::baseIndexTransfer32):
• assembler/AbstractMacroAssembler.h: (JSC::AbstractMacroAssembler::Imm32::Imm32):
• assembler/MacroAssemblerARM.h: (JSC::MacroAssemblerARM::store32): (JSC::MacroAssemblerARM::move): (JSC::MacroAssemblerARM::branch32): (JSC::MacroAssemblerARM::add32): (JSC::MacroAssemblerARM::sub32): (JSC::MacroAssemblerARM::load32):
• bytecode/CodeBlock.h: (JSC::CodeBlock::getBytecodeIndex):
• jit/JIT.h:
• jit/JITInlineMethods.h: (JSC::JIT::restoreArgumentReference):
• jit/JITOpcodes.cpp:
• jit/JITStubs.cpp:
• jit/JITStubs.h: (JSC::JITStackFrame::returnAddressSlot):
• wtf/Platform.h:

File:

• trunk/JavaScriptCore/jit/JITStubs.cpp (modified) (1 diff)

trunk/JavaScriptCore/jit/JITStubs.cpp

@@ -515 +515 @@
     "add sp, sp, #0x3c" "\n"
     "bx lr" "\n"
+);
+
+#elif COMPILER(GCC) && PLATFORM(ARM)
+
+asm volatile (
+".globl " SYMBOL_STRING(ctiTrampoline) "\n"
+SYMBOL_STRING(ctiTrampoline) ":" "\n"
+    "stmdb sp!, {r1-r3}" "\n"
+    "stmdb sp!, {r4-r8, lr}" "\n"
+    "mov r6, pc" "\n"
+    "add r6, r6, #40" "\n"
+    "sub sp, sp, #32" "\n"
+    "ldr r4, [sp, #60]" "\n"
+    "mov r5, #512" "\n"
+    // r0 contains the code
+    "add r8, pc, #4" "\n"
+    "str r8, [sp, #-4]!" "\n"
+    "mov pc, r0" "\n"
+    "add sp, sp, #32" "\n"
+    "ldmia sp!, {r4-r8, lr}" "\n"
+    "add sp, sp, #12" "\n"
+    "mov pc, lr" "\n"
+
+    // the return instruction
+    "ldr pc, [sp], #4" "\n"
+);
+
+asm volatile (
+".globl " SYMBOL_STRING(ctiVMThrowTrampoline) "\n"
+SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
+    "mov r0, sp" "\n"
+    "mov lr, r6" "\n"
+    "add r8, pc, #4" "\n"
+    "str r8, [sp, #-4]!" "\n"
+    "b " SYMBOL_STRING(cti_vm_throw) "\n"
+
+// Both has the same return sequence
+".globl " SYMBOL_STRING(ctiOpThrowNotCaught) "\n"
+SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"
+    "add sp, sp, #32" "\n"
+    "ldmia sp!, {r4-r8, lr}" "\n"
+    "add sp, sp, #12" "\n"
+    "mov pc, lr" "\n"
 );