Shih-wei Liao | 31384c5 | 2011-09-06 15:27:45 -0700 | [diff] [blame] | 1 | // Copyright 2011 Google Inc. All Rights Reserved. |
| 2 | |
| 3 | #include "assembler_x86.h" |
| 4 | #include "jni_internal.h" |
| 5 | #include "object.h" |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 6 | #include "stack_indirect_reference_table.h" |
Shih-wei Liao | 31384c5 | 2011-09-06 15:27:45 -0700 | [diff] [blame] | 7 | |
| 8 | #define __ assembler-> |
| 9 | |
| 10 | namespace art { |
| 11 | namespace x86 { |
| 12 | |
Ian Rogers | 1cb0a1d | 2011-10-06 15:24:35 -0700 | [diff] [blame] | 13 | ByteArray* X86CreateResolutionTrampoline(Runtime::TrampolineType) { |
Elliott Hughes | 362f9bc | 2011-10-17 18:56:41 -0700 | [diff] [blame] | 14 | UniquePtr<X86Assembler> assembler(static_cast<X86Assembler*>(Assembler::Create(kX86))); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 15 | |
| 16 | // TODO: unimplemented |
| 17 | __ int3(); |
| 18 | |
| 19 | assembler->EmitSlowPaths(); |
| 20 | size_t cs = assembler->CodeSize(); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 21 | SirtRef<ByteArray> resolution_trampoline(ByteArray::Alloc(cs)); |
| 22 | CHECK(resolution_trampoline.get() != NULL); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 23 | MemoryRegion code(resolution_trampoline->GetData(), resolution_trampoline->GetLength()); |
| 24 | assembler->FinalizeInstructions(code); |
| 25 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 26 | return resolution_trampoline.get(); |
Ian Rogers | ad25ac5 | 2011-10-04 19:13:33 -0700 | [diff] [blame] | 27 | } |
| 28 | |
Shih-wei Liao | c486c11 | 2011-09-13 16:43:52 -0700 | [diff] [blame] | 29 | typedef void (*ThrowAme)(Method*, Thread*); |
| 30 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 31 | ByteArray* CreateAbstractMethodErrorStub() { |
Elliott Hughes | 362f9bc | 2011-10-17 18:56:41 -0700 | [diff] [blame] | 32 | UniquePtr<X86Assembler> assembler(static_cast<X86Assembler*>(Assembler::Create(kX86))); |
Shih-wei Liao | c486c11 | 2011-09-13 16:43:52 -0700 | [diff] [blame] | 33 | |
| 34 | // Pad stack to ensure 16-byte alignment |
| 35 | __ pushl(Immediate(0)); |
Shih-wei Liao | c486c11 | 2011-09-13 16:43:52 -0700 | [diff] [blame] | 36 | __ fs()->pushl(Address::Absolute(Thread::SelfOffset())); // Thread* |
Ian Rogers | 67375ac | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 37 | __ pushl(EAX); // Method* |
Shih-wei Liao | c486c11 | 2011-09-13 16:43:52 -0700 | [diff] [blame] | 38 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 39 | // Call to throw AbstractMethodError |
| 40 | __ Call(ThreadOffset(OFFSETOF_MEMBER(Thread, pThrowAbstractMethodErrorFromCode)), |
| 41 | X86ManagedRegister::FromCpuRegister(ECX)); |
Shih-wei Liao | c486c11 | 2011-09-13 16:43:52 -0700 | [diff] [blame] | 42 | |
| 43 | // Because the call above never returns, we do not need to do ESP+=16 here. |
| 44 | |
| 45 | __ int3(); |
| 46 | |
| 47 | assembler->EmitSlowPaths(); |
| 48 | |
| 49 | size_t cs = assembler->CodeSize(); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 50 | SirtRef<ByteArray> abstract_stub(ByteArray::Alloc(cs)); |
| 51 | CHECK(abstract_stub.get() != NULL); |
Shih-wei Liao | c486c11 | 2011-09-13 16:43:52 -0700 | [diff] [blame] | 52 | MemoryRegion code(abstract_stub->GetData(), abstract_stub->GetLength()); |
| 53 | assembler->FinalizeInstructions(code); |
| 54 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 55 | return abstract_stub.get(); |
Shih-wei Liao | c486c11 | 2011-09-13 16:43:52 -0700 | [diff] [blame] | 56 | } |
| 57 | |
Shih-wei Liao | 31384c5 | 2011-09-06 15:27:45 -0700 | [diff] [blame] | 58 | ByteArray* CreateJniStub() { |
Elliott Hughes | 362f9bc | 2011-10-17 18:56:41 -0700 | [diff] [blame] | 59 | UniquePtr<X86Assembler> assembler(static_cast<X86Assembler*>(Assembler::Create(kX86))); |
Shih-wei Liao | 31384c5 | 2011-09-06 15:27:45 -0700 | [diff] [blame] | 60 | |
| 61 | // Pad stack to ensure 16-byte alignment |
| 62 | __ pushl(Immediate(0)); |
| 63 | __ pushl(Immediate(0)); |
Ian Rogers | 67375ac | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 64 | __ fs()->pushl(Address::Absolute(Thread::SelfOffset())); // Thread* |
Shih-wei Liao | 31384c5 | 2011-09-06 15:27:45 -0700 | [diff] [blame] | 65 | |
Ian Rogers | bdb0391 | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 66 | __ Call(ThreadOffset(OFFSETOF_MEMBER(Thread, pFindNativeMethod)), |
| 67 | X86ManagedRegister::FromCpuRegister(ECX)); |
Shih-wei Liao | 31384c5 | 2011-09-06 15:27:45 -0700 | [diff] [blame] | 68 | |
Ian Rogers | 67375ac | 2011-09-14 00:55:44 -0700 | [diff] [blame] | 69 | __ addl(ESP, Immediate(12)); |
Shih-wei Liao | 31384c5 | 2011-09-06 15:27:45 -0700 | [diff] [blame] | 70 | |
| 71 | Label no_native_code_found; // forward declaration |
| 72 | __ cmpl(EAX, Immediate(0)); |
| 73 | __ j(kEqual, &no_native_code_found); |
| 74 | |
| 75 | __ jmp(EAX); // Tail call into native code |
| 76 | |
| 77 | __ Bind(&no_native_code_found); |
| 78 | __ ret(); // return to caller to handle exception |
| 79 | |
| 80 | assembler->EmitSlowPaths(); |
| 81 | |
| 82 | size_t cs = assembler->CodeSize(); |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 83 | SirtRef<ByteArray> jni_stub(ByteArray::Alloc(cs)); |
| 84 | CHECK(jni_stub.get() != NULL); |
Shih-wei Liao | 31384c5 | 2011-09-06 15:27:45 -0700 | [diff] [blame] | 85 | MemoryRegion code(jni_stub->GetData(), jni_stub->GetLength()); |
| 86 | assembler->FinalizeInstructions(code); |
| 87 | |
Brian Carlstrom | 40381fb | 2011-10-19 14:13:40 -0700 | [diff] [blame] | 88 | return jni_stub.get(); |
Shih-wei Liao | 31384c5 | 2011-09-06 15:27:45 -0700 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | } // namespace x86 |
| 92 | } // namespace art |