1/* 2 * Copyright (C) 2013 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27 28#if ENABLE(ASSEMBLER) && CPU(ARM_THUMB2) 29#include "MacroAssemblerARMv7.h" 30 31#if USE(MASM_PROBE) 32#include <wtf/StdLibExtras.h> 33#endif 34 35namespace JSC { 36 37#if USE(MASM_PROBE) 38 39void MacroAssemblerARMv7::ProbeContext::dumpCPURegisters(const char* indentation) 40{ 41 #define DUMP_GPREGISTER(_type, _regName) { \ 42 int32_t value = reinterpret_cast<int32_t>(cpu._regName); \ 43 dataLogF("%s %5s: 0x%08x %d\n", indentation, #_regName, value, value) ; \ 44 } 45 FOR_EACH_CPU_GPREGISTER(DUMP_GPREGISTER) 46 FOR_EACH_CPU_SPECIAL_REGISTER(DUMP_GPREGISTER) 47 #undef DUMP_GPREGISTER 48 49 #define DUMP_FPREGISTER(_type, _regName) { \ 50 uint32_t* u = reinterpret_cast<uint32_t*>(&cpu._regName); \ 51 double* d = reinterpret_cast<double*>(&cpu._regName); \ 52 dataLogF("%s %5s: 0x %08x %08x %12g\n", \ 53 indentation, #_regName, u[1], u[0], d[0]); \ 54 } 55 FOR_EACH_CPU_FPREGISTER(DUMP_FPREGISTER) 56 #undef DUMP_FPREGISTER 57} 58 59void MacroAssemblerARMv7::ProbeContext::dump(const char* indentation) 60{ 61 if (!indentation) 62 indentation = ""; 63 64 dataLogF("%sProbeContext %p {\n", indentation, this); 65 dataLogF("%s probeFunction: %p\n", indentation, probeFunction); 66 dataLogF("%s arg1: %p %llu\n", indentation, arg1, reinterpret_cast<int64_t>(arg1)); 67 dataLogF("%s arg2: %p %llu\n", indentation, arg2, reinterpret_cast<int64_t>(arg2)); 68 dataLogF("%s cpu: {\n", indentation); 69 70 dumpCPURegisters(indentation); 71 72 dataLogF("%s }\n", indentation); 73 dataLogF("%s}\n", indentation); 74} 75 76 77extern "C" void ctiMasmProbeTrampoline(); 78 79// For details on "What code is emitted for the probe?" and "What values are in 80// the saved registers?", see comment for MacroAssemblerX86::probe() in 81// MacroAssemblerX86_64.h. 82 83void MacroAssemblerARMv7::probe(MacroAssemblerARMv7::ProbeFunction function, void* arg1, void* arg2) 84{ 85 push(RegisterID::lr); 86 push(RegisterID::lr); 87 add32(TrustedImm32(8), RegisterID::sp, RegisterID::lr); 88 store32(RegisterID::lr, ArmAddress(RegisterID::sp, 4)); 89 push(RegisterID::ip); 90 push(RegisterID::r0); 91 // The following uses RegisterID::ip. So, they must come after we push ip above. 92 push(trustedImm32FromPtr(arg2)); 93 push(trustedImm32FromPtr(arg1)); 94 push(trustedImm32FromPtr(function)); 95 96 move(trustedImm32FromPtr(ctiMasmProbeTrampoline), RegisterID::ip); 97 m_assembler.blx(RegisterID::ip); 98} 99#endif // USE(MASM_PROBE) 100 101} // namespace JSC 102 103#endif // ENABLE(ASSEMBLER) 104 105