Changeset 46059 in webkit for trunk/JavaScriptCore/jit/ExecutableAllocator.h

Timestamp:

Jul 17, 2009, 2:56:28 PM (16 years ago)

Author:

[email protected]

Message:

2009-07-17 Gabor Loki <​[email protected]>

Reviewed by Gavin Barraclough.

Add YARR support for generic ARM platforms (disabled by default).
​https://bugs.webkit.org/show_bug.cgi?id=24986

Add generic ARM port for MacroAssembler. It supports the whole
MacroAssembler functionality except floating point.

The class JmpSrc is extended with a flag which enables to patch
the jump destination offset during execution. This feature is
required for generic ARM port.

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

• JavaScriptCore.pri:
• assembler/ARMAssembler.cpp: Added. (JSC::ARMAssembler::getLdrImmAddress): (JSC::ARMAssembler::linkBranch): (JSC::ARMAssembler::patchConstantPoolLoad): (JSC::ARMAssembler::getOp2): (JSC::ARMAssembler::genInt): (JSC::ARMAssembler::getImm): (JSC::ARMAssembler::moveImm): (JSC::ARMAssembler::dataTransfer32): (JSC::ARMAssembler::baseIndexTransfer32): (JSC::ARMAssembler::executableCopy):
• assembler/ARMAssembler.h: Added. (JSC::ARM::): (JSC::ARMAssembler::ARMAssembler): (JSC::ARMAssembler::): (JSC::ARMAssembler::JmpSrc::JmpSrc): (JSC::ARMAssembler::JmpSrc::enableLatePatch): (JSC::ARMAssembler::JmpDst::JmpDst): (JSC::ARMAssembler::JmpDst::isUsed): (JSC::ARMAssembler::JmpDst::used): (JSC::ARMAssembler::emitInst): (JSC::ARMAssembler::and_r): (JSC::ARMAssembler::ands_r): (JSC::ARMAssembler::eor_r): (JSC::ARMAssembler::eors_r): (JSC::ARMAssembler::sub_r): (JSC::ARMAssembler::subs_r): (JSC::ARMAssembler::rsb_r): (JSC::ARMAssembler::rsbs_r): (JSC::ARMAssembler::add_r): (JSC::ARMAssembler::adds_r): (JSC::ARMAssembler::adc_r): (JSC::ARMAssembler::adcs_r): (JSC::ARMAssembler::sbc_r): (JSC::ARMAssembler::sbcs_r): (JSC::ARMAssembler::rsc_r): (JSC::ARMAssembler::rscs_r): (JSC::ARMAssembler::tst_r): (JSC::ARMAssembler::teq_r): (JSC::ARMAssembler::cmp_r): (JSC::ARMAssembler::orr_r): (JSC::ARMAssembler::orrs_r): (JSC::ARMAssembler::mov_r): (JSC::ARMAssembler::movs_r): (JSC::ARMAssembler::bic_r): (JSC::ARMAssembler::bics_r): (JSC::ARMAssembler::mvn_r): (JSC::ARMAssembler::mvns_r): (JSC::ARMAssembler::mul_r): (JSC::ARMAssembler::muls_r): (JSC::ARMAssembler::mull_r): (JSC::ARMAssembler::ldr_imm): (JSC::ARMAssembler::ldr_un_imm): (JSC::ARMAssembler::dtr_u): (JSC::ARMAssembler::dtr_ur): (JSC::ARMAssembler::dtr_d): (JSC::ARMAssembler::dtr_dr): (JSC::ARMAssembler::ldrh_r): (JSC::ARMAssembler::ldrh_d): (JSC::ARMAssembler::ldrh_u): (JSC::ARMAssembler::strh_r): (JSC::ARMAssembler::push_r): (JSC::ARMAssembler::pop_r): (JSC::ARMAssembler::poke_r): (JSC::ARMAssembler::peek_r): (JSC::ARMAssembler::clz_r): (JSC::ARMAssembler::bkpt): (JSC::ARMAssembler::lsl): (JSC::ARMAssembler::lsr): (JSC::ARMAssembler::asr): (JSC::ARMAssembler::lsl_r): (JSC::ARMAssembler::lsr_r): (JSC::ARMAssembler::asr_r): (JSC::ARMAssembler::size): (JSC::ARMAssembler::ensureSpace): (JSC::ARMAssembler::label): (JSC::ARMAssembler::align): (JSC::ARMAssembler::jmp): (JSC::ARMAssembler::patchPointerInternal): (JSC::ARMAssembler::patchConstantPoolLoad): (JSC::ARMAssembler::patchPointer): (JSC::ARMAssembler::repatchInt32): (JSC::ARMAssembler::repatchPointer): (JSC::ARMAssembler::repatchLoadPtrToLEA): (JSC::ARMAssembler::linkJump): (JSC::ARMAssembler::relinkJump): (JSC::ARMAssembler::linkCall): (JSC::ARMAssembler::relinkCall): (JSC::ARMAssembler::getRelocatedAddress): (JSC::ARMAssembler::getDifferenceBetweenLabels): (JSC::ARMAssembler::getCallReturnOffset): (JSC::ARMAssembler::getOp2Byte): (JSC::ARMAssembler::placeConstantPoolBarrier): (JSC::ARMAssembler::RM): (JSC::ARMAssembler::RS): (JSC::ARMAssembler::RD): (JSC::ARMAssembler::RN): (JSC::ARMAssembler::getConditionalField):
• assembler/ARMv7Assembler.h: (JSC::ARMv7Assembler::JmpSrc::enableLatePatch):
• assembler/AbstractMacroAssembler.h: (JSC::AbstractMacroAssembler::Call::enableLatePatch): (JSC::AbstractMacroAssembler::Jump::enableLatePatch):
• assembler/MacroAssembler.h:
• assembler/MacroAssemblerARM.h: Added. (JSC::MacroAssemblerARM::): (JSC::MacroAssemblerARM::add32): (JSC::MacroAssemblerARM::and32): (JSC::MacroAssemblerARM::lshift32): (JSC::MacroAssemblerARM::mul32): (JSC::MacroAssemblerARM::not32): (JSC::MacroAssemblerARM::or32): (JSC::MacroAssemblerARM::rshift32): (JSC::MacroAssemblerARM::sub32): (JSC::MacroAssemblerARM::xor32): (JSC::MacroAssemblerARM::load32): (JSC::MacroAssemblerARM::load32WithAddressOffsetPatch): (JSC::MacroAssemblerARM::loadPtrWithPatchToLEA): (JSC::MacroAssemblerARM::load16): (JSC::MacroAssemblerARM::store32WithAddressOffsetPatch): (JSC::MacroAssemblerARM::store32): (JSC::MacroAssemblerARM::pop): (JSC::MacroAssemblerARM::push): (JSC::MacroAssemblerARM::move): (JSC::MacroAssemblerARM::swap): (JSC::MacroAssemblerARM::signExtend32ToPtr): (JSC::MacroAssemblerARM::zeroExtend32ToPtr): (JSC::MacroAssemblerARM::branch32): (JSC::MacroAssemblerARM::branch16): (JSC::MacroAssemblerARM::branchTest32): (JSC::MacroAssemblerARM::jump): (JSC::MacroAssemblerARM::branchAdd32): (JSC::MacroAssemblerARM::mull32): (JSC::MacroAssemblerARM::branchMul32): (JSC::MacroAssemblerARM::branchSub32): (JSC::MacroAssemblerARM::breakpoint): (JSC::MacroAssemblerARM::nearCall): (JSC::MacroAssemblerARM::call): (JSC::MacroAssemblerARM::ret): (JSC::MacroAssemblerARM::set32): (JSC::MacroAssemblerARM::setTest32): (JSC::MacroAssemblerARM::tailRecursiveCall): (JSC::MacroAssemblerARM::makeTailRecursiveCall): (JSC::MacroAssemblerARM::moveWithPatch): (JSC::MacroAssemblerARM::branchPtrWithPatch): (JSC::MacroAssemblerARM::storePtrWithPatch): (JSC::MacroAssemblerARM::supportsFloatingPoint): (JSC::MacroAssemblerARM::supportsFloatingPointTruncate): (JSC::MacroAssemblerARM::loadDouble): (JSC::MacroAssemblerARM::storeDouble): (JSC::MacroAssemblerARM::addDouble): (JSC::MacroAssemblerARM::subDouble): (JSC::MacroAssemblerARM::mulDouble): (JSC::MacroAssemblerARM::convertInt32ToDouble): (JSC::MacroAssemblerARM::branchDouble): (JSC::MacroAssemblerARM::branchTruncateDoubleToInt32): (JSC::MacroAssemblerARM::ARMCondition): (JSC::MacroAssemblerARM::prepareCall): (JSC::MacroAssemblerARM::call32):
• assembler/X86Assembler.h: (JSC::X86Assembler::JmpSrc::enableLatePatch):
• jit/ExecutableAllocator.h: (JSC::ExecutableAllocator::cacheFlush):
• wtf/Platform.h:
• yarr/RegexJIT.cpp: (JSC::Yarr::RegexGenerator::generateEnter): (JSC::Yarr::RegexGenerator::generateReturn):

File:

• trunk/JavaScriptCore/jit/ExecutableAllocator.h (modified) (1 diff)

trunk/JavaScriptCore/jit/ExecutableAllocator.h

@@ -214 +214 @@
         sys_dcache_flush(code, size);
         sys_icache_invalidate(code, size);
+#elif PLATFORM(ARM)
+    #if COMPILER(GCC) && (GCC_VERSION >= 30406)
+        __clear_cache(reinterpret_cast<char*>(code), reinterpret_cast<char*>(code) + size);
+    #else
+        const int syscall = 0xf0002;
+        __asm __volatile (
+               "mov     r0, %0\n"
+               "mov     r1, %1\n"
+               "mov     r7, %2\n"
+               "mov     r2, #0x0\n"
+               "swi     0x00000000\n"
+           :
+           :   "r" (code), "r" (reinterpret_cast<char*>(code) + size), "r" (syscall)
+           :   "r0", "r1", "r7");
+    #endif // COMPILER(GCC) && (GCC_VERSION >= 30406)
 #else
 #error "ExecutableAllocator::cacheFlush not implemented on this platform."