MIPS: cleanup api callbacks now that handles are never returned directly
Port r16360 (72401868) BUG= Review URL: https://codereview.chromium.org/23604004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16373 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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palfia@homejinni.com
parent
42b63dcbcb
commit
03644ab8df
@ -3963,7 +3963,6 @@ void MacroAssembler::CallApiFunctionAndReturn(ExternalReference function,
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ExternalReference thunk_ref,
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Register thunk_last_arg,
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int stack_space,
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bool returns_handle,
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int return_value_offset_from_fp) {
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ExternalReference next_address =
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ExternalReference::handle_scope_next_address(isolate());
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@ -3992,14 +3991,6 @@ void MacroAssembler::CallApiFunctionAndReturn(ExternalReference function,
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PopSafepointRegisters();
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}
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// The O32 ABI requires us to pass a pointer in a0 where the returned struct
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// (4 bytes) will be placed. This is also built into the Simulator.
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// Set up the pointer to the returned value (a0). It was allocated in
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// EnterExitFrame.
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if (returns_handle) {
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addiu(a0, fp, ExitFrameConstants::kStackSpaceOffset);
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}
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Label profiler_disabled;
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Label end_profiler_check;
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bool* is_profiling_flag =
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@ -4039,19 +4030,6 @@ void MacroAssembler::CallApiFunctionAndReturn(ExternalReference function,
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Label leave_exit_frame;
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Label return_value_loaded;
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if (returns_handle) {
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Label load_return_value;
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// As mentioned above, on MIPS a pointer is returned - we need to
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// dereference it to get the actual return value (which is also a pointer).
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lw(v0, MemOperand(v0));
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Branch(&load_return_value, eq, v0, Operand(zero_reg));
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// Dereference returned value.
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lw(v0, MemOperand(v0));
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Branch(&return_value_loaded);
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bind(&load_return_value);
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}
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// Load value from ReturnValue.
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lw(v0, MemOperand(fp, return_value_offset_from_fp*kPointerSize));
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bind(&return_value_loaded);
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@ -1233,7 +1233,6 @@ class MacroAssembler: public Assembler {
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ExternalReference thunk_ref,
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Register thunk_last_arg,
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int stack_space,
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bool returns_handle,
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int return_value_offset_from_fp);
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// Jump to the builtin routine.
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@ -1387,27 +1387,12 @@ typedef double (*SimulatorRuntimeFPIntCall)(double darg0, int32_t arg0);
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// This signature supports direct call in to API function native callback
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// (refer to InvocationCallback in v8.h).
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// NOTE: the O32 abi requires a0 to hold a special pointer when returning a
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// struct from the function (which is currently the case). This means we pass
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// the first argument in a1 instead of a0.
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typedef v8::Handle<v8::Value> (*SimulatorRuntimeDirectApiCall)(int32_t arg0);
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// Here, we pass the first argument in a0, because this function
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// does not return a struct.
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typedef void (*SimulatorRuntimeDirectApiCallNew)(int32_t arg0);
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typedef v8::Handle<v8::Value> (*SimulatorRuntimeProfilingApiCall)(
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int32_t arg0, int32_t arg1);
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typedef void (*SimulatorRuntimeProfilingApiCallNew)(int32_t arg0, int32_t arg1);
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typedef void (*SimulatorRuntimeDirectApiCall)(int32_t arg0);
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typedef void (*SimulatorRuntimeProfilingApiCall)(int32_t arg0, int32_t arg1);
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// This signature supports direct call to accessor getter callback.
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// See comment at SimulatorRuntimeDirectApiCall.
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typedef v8::Handle<v8::Value> (*SimulatorRuntimeDirectGetterCall)(int32_t arg0,
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int32_t arg1);
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// See comment at SimulatorRuntimeDirectApiCallNew.
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typedef void (*SimulatorRuntimeDirectGetterCallNew)(int32_t arg0,
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int32_t arg1);
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typedef v8::Handle<v8::Value> (*SimulatorRuntimeProfilingGetterCall)(
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int32_t arg0, int32_t arg1, int32_t arg2);
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typedef void (*SimulatorRuntimeProfilingGetterCallNew)(
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typedef void (*SimulatorRuntimeDirectGetterCall)(int32_t arg0, int32_t arg1);
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typedef void (*SimulatorRuntimeProfilingGetterCall)(
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int32_t arg0, int32_t arg1, int32_t arg2);
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// Software interrupt instructions are used by the simulator to call into the
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@ -1553,102 +1538,41 @@ void Simulator::SoftwareInterrupt(Instruction* instr) {
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break;
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}
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}
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} else if (
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redirection->type() == ExternalReference::DIRECT_API_CALL ||
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redirection->type() == ExternalReference::DIRECT_API_CALL_NEW) {
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if (redirection->type() == ExternalReference::DIRECT_API_CALL) {
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// See comment at type definition of SimulatorRuntimeDirectApiCall
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// for explanation of register usage.
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if (::v8::internal::FLAG_trace_sim) {
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PrintF("Call to host function at %p args %08x\n",
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reinterpret_cast<void*>(external), arg1);
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}
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SimulatorRuntimeDirectApiCall target =
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reinterpret_cast<SimulatorRuntimeDirectApiCall>(external);
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v8::Handle<v8::Value> result = target(arg1);
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*(reinterpret_cast<int*>(arg0)) = reinterpret_cast<int32_t>(*result);
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set_register(v0, arg0);
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} else {
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} else if (redirection->type() == ExternalReference::DIRECT_API_CALL) {
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if (::v8::internal::FLAG_trace_sim) {
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PrintF("Call to host function at %p args %08x\n",
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reinterpret_cast<void*>(external), arg0);
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}
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SimulatorRuntimeDirectApiCallNew target =
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reinterpret_cast<SimulatorRuntimeDirectApiCallNew>(external);
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SimulatorRuntimeDirectApiCall target =
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reinterpret_cast<SimulatorRuntimeDirectApiCall>(external);
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target(arg0);
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}
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} else if (
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redirection->type() == ExternalReference::PROFILING_API_CALL ||
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redirection->type() == ExternalReference::PROFILING_API_CALL_NEW) {
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if (redirection->type() == ExternalReference::PROFILING_API_CALL) {
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// See comment at type definition of SimulatorRuntimeDirectApiCall
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// for explanation of register usage.
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redirection->type() == ExternalReference::PROFILING_API_CALL) {
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if (::v8::internal::FLAG_trace_sim) {
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PrintF("Call to host function at %p args %08x %08x\n",
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reinterpret_cast<void*>(external), arg1, arg2);
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reinterpret_cast<void*>(external), arg0, arg1);
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}
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SimulatorRuntimeProfilingApiCall target =
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reinterpret_cast<SimulatorRuntimeProfilingApiCall>(external);
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v8::Handle<v8::Value> result = target(arg1, arg2);
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*(reinterpret_cast<int*>(arg0)) = reinterpret_cast<int32_t>(*result);
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set_register(v0, arg0);
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} else {
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target(arg0, arg1);
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} else if (
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redirection->type() == ExternalReference::DIRECT_GETTER_CALL) {
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if (::v8::internal::FLAG_trace_sim) {
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PrintF("Call to host function at %p args %08x %08x\n",
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reinterpret_cast<void*>(external), arg0, arg1);
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}
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SimulatorRuntimeProfilingApiCallNew target =
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reinterpret_cast<SimulatorRuntimeProfilingApiCallNew>(external);
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target(arg0, arg1);
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}
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} else if (
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redirection->type() == ExternalReference::DIRECT_GETTER_CALL ||
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redirection->type() == ExternalReference::DIRECT_GETTER_CALL_NEW) {
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if (redirection->type() == ExternalReference::DIRECT_GETTER_CALL) {
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// See comment at type definition of SimulatorRuntimeDirectGetterCall
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// for explanation of register usage.
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if (::v8::internal::FLAG_trace_sim) {
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PrintF("Call to host function at %p args %08x %08x\n",
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reinterpret_cast<void*>(external), arg1, arg2);
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}
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SimulatorRuntimeDirectGetterCall target =
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reinterpret_cast<SimulatorRuntimeDirectGetterCall>(external);
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v8::Handle<v8::Value> result = target(arg1, arg2);
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*(reinterpret_cast<int*>(arg0)) = reinterpret_cast<int32_t>(*result);
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set_register(v0, arg0);
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} else {
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if (::v8::internal::FLAG_trace_sim) {
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PrintF("Call to host function at %p args %08x %08x\n",
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reinterpret_cast<void*>(external), arg0, arg1);
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}
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SimulatorRuntimeDirectGetterCallNew target =
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reinterpret_cast<SimulatorRuntimeDirectGetterCallNew>(external);
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target(arg0, arg1);
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}
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} else if (
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redirection->type() == ExternalReference::PROFILING_GETTER_CALL ||
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redirection->type() == ExternalReference::PROFILING_GETTER_CALL_NEW) {
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if (redirection->type() == ExternalReference::PROFILING_GETTER_CALL) {
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// See comment at type definition of SimulatorRuntimeProfilingGetterCall
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// for explanation of register usage.
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if (::v8::internal::FLAG_trace_sim) {
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PrintF("Call to host function at %p args %08x %08x %08x\n",
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reinterpret_cast<void*>(external), arg1, arg2, arg3);
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}
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SimulatorRuntimeProfilingGetterCall target =
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reinterpret_cast<SimulatorRuntimeProfilingGetterCall>(external);
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v8::Handle<v8::Value> result = target(arg1, arg2, arg3);
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*(reinterpret_cast<int*>(arg0)) = reinterpret_cast<int32_t>(*result);
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set_register(v0, arg0);
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} else {
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redirection->type() == ExternalReference::PROFILING_GETTER_CALL) {
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if (::v8::internal::FLAG_trace_sim) {
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PrintF("Call to host function at %p args %08x %08x %08x\n",
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reinterpret_cast<void*>(external), arg0, arg1, arg2);
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}
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SimulatorRuntimeProfilingGetterCallNew target =
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reinterpret_cast<SimulatorRuntimeProfilingGetterCallNew>(external);
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SimulatorRuntimeProfilingGetterCall target =
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reinterpret_cast<SimulatorRuntimeProfilingGetterCall>(external);
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target(arg0, arg1, arg2);
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}
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} else {
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SimulatorRuntimeCall target =
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reinterpret_cast<SimulatorRuntimeCall>(external);
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@ -879,49 +879,31 @@ static void GenerateFastApiDirectCall(MacroAssembler* masm,
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FrameScope frame_scope(masm, StackFrame::MANUAL);
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__ EnterExitFrame(false, kApiStackSpace);
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// NOTE: the O32 abi requires a0 to hold a special pointer when returning a
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// struct from the function (which is currently the case). This means we pass
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// the first argument in a1 instead of a0, if returns_handle is true.
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// CallApiFunctionAndReturn will set up a0.
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Address function_address = v8::ToCData<Address>(api_call_info->callback());
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// TODO(dcarney): fix signatures using returns_handle
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const bool returns_handle = false;
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Register first_arg = returns_handle ? a1 : a0;
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Register second_arg = returns_handle ? a2 : a1;
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// first_arg = v8::Arguments&
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// a0 = v8::Arguments&
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// Arguments is built at sp + 1 (sp is a reserved spot for ra).
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__ Addu(first_arg, sp, kPointerSize);
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__ Addu(a0, sp, kPointerSize);
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// v8::Arguments::implicit_args_
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__ sw(a2, MemOperand(first_arg, 0 * kPointerSize));
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__ sw(a2, MemOperand(a0, 0 * kPointerSize));
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// v8::Arguments::values_
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__ Addu(t0, a2, Operand(argc * kPointerSize));
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__ sw(t0, MemOperand(first_arg, 1 * kPointerSize));
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__ sw(t0, MemOperand(a0, 1 * kPointerSize));
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// v8::Arguments::length_ = argc
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__ li(t0, Operand(argc));
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__ sw(t0, MemOperand(first_arg, 2 * kPointerSize));
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__ sw(t0, MemOperand(a0, 2 * kPointerSize));
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// v8::Arguments::is_construct_call = 0
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__ sw(zero_reg, MemOperand(first_arg, 3 * kPointerSize));
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__ sw(zero_reg, MemOperand(a0, 3 * kPointerSize));
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const int kStackUnwindSpace = argc + kFastApiCallArguments + 1;
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Address function_address = v8::ToCData<Address>(api_call_info->callback());
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ApiFunction fun(function_address);
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ExternalReference::Type type =
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returns_handle ?
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ExternalReference::DIRECT_API_CALL :
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ExternalReference::DIRECT_API_CALL_NEW;
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ExternalReference::Type type = ExternalReference::DIRECT_API_CALL;
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ExternalReference ref =
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ExternalReference(&fun,
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type,
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masm->isolate());
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Address thunk_address = FUNCTION_ADDR(&InvokeFunctionCallback);
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ExternalReference::Type thunk_type =
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returns_handle ?
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ExternalReference::PROFILING_API_CALL :
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ExternalReference::PROFILING_API_CALL_NEW;
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ExternalReference::Type thunk_type = ExternalReference::PROFILING_API_CALL;
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ApiFunction thunk_fun(thunk_address);
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ExternalReference thunk_ref = ExternalReference(&thunk_fun, thunk_type,
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masm->isolate());
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@ -930,9 +912,8 @@ static void GenerateFastApiDirectCall(MacroAssembler* masm,
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__ CallApiFunctionAndReturn(ref,
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function_address,
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thunk_ref,
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second_arg,
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a1,
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kStackUnwindSpace,
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returns_handle,
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kFastApiCallArguments + 1);
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}
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@ -1417,21 +1398,8 @@ void BaseLoadStubCompiler::GenerateLoadCallback(
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__ sw(scratch4(), MemOperand(sp, 1 * kPointerSize));
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__ sw(name(), MemOperand(sp, 0 * kPointerSize));
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Address getter_address = v8::ToCData<Address>(callback->getter());
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// TODO(dcarney): fix signatures using returns_handle
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const bool returns_handle = false;
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Register first_arg = returns_handle ? a1 : a0;
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Register second_arg = returns_handle ? a2 : a1;
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Register third_arg = returns_handle ? a3 : a2;
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__ mov(a2, scratch2()); // Saved in case scratch2 == a1.
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__ mov(first_arg, sp); // (first argument - see note below) = Handle<Name>
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// NOTE: the O32 abi requires a0 to hold a special pointer when returning a
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// struct from the function (which is currently the case). This means we pass
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// the arguments in a1-a2 instead of a0-a1, if returns_handle is true.
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// CallApiFunctionAndReturn will set up a0.
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__ mov(a0, sp); // (first argument - a0) = Handle<Name>
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const int kApiStackSpace = 1;
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FrameScope frame_scope(masm(), StackFrame::MANUAL);
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@ -1440,30 +1408,26 @@ void BaseLoadStubCompiler::GenerateLoadCallback(
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// Create AccessorInfo instance on the stack above the exit frame with
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// scratch2 (internal::Object** args_) as the data.
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__ sw(a2, MemOperand(sp, kPointerSize));
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// (second argument - see note above) = AccessorInfo&
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__ Addu(second_arg, sp, kPointerSize);
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// (second argument - a1) = AccessorInfo&
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__ Addu(a1, sp, kPointerSize);
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const int kStackUnwindSpace = kFastApiCallArguments + 1;
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Address getter_address = v8::ToCData<Address>(callback->getter());
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ApiFunction fun(getter_address);
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ExternalReference::Type type =
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returns_handle ?
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ExternalReference::DIRECT_GETTER_CALL :
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ExternalReference::DIRECT_GETTER_CALL_NEW;
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ExternalReference::Type type = ExternalReference::DIRECT_GETTER_CALL;
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ExternalReference ref = ExternalReference(&fun, type, isolate());
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Address thunk_address = FUNCTION_ADDR(&InvokeAccessorGetterCallback);
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ExternalReference::Type thunk_type =
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ExternalReference::PROFILING_GETTER_CALL_NEW;
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ExternalReference::PROFILING_GETTER_CALL;
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ApiFunction thunk_fun(thunk_address);
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ExternalReference thunk_ref = ExternalReference(&thunk_fun, thunk_type,
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isolate());
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__ CallApiFunctionAndReturn(ref,
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getter_address,
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thunk_ref,
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third_arg,
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a2,
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kStackUnwindSpace,
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returns_handle,
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5);
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}
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