Index: runtime/vm/debugger_x64.cc |
=================================================================== |
--- runtime/vm/debugger_x64.cc (revision 31428) |
+++ runtime/vm/debugger_x64.cc (working copy) |
@@ -32,42 +32,6 @@ |
*reinterpret_cast<uword*>(closure_addr)); |
} |
- |
-void CodeBreakpoint::PatchFunctionReturn() { |
- uint8_t* code = reinterpret_cast<uint8_t*>(pc_ - 13); |
- ASSERT((code[0] == 0x4c) && (code[1] == 0x8b) && (code[2] == 0x7d) && |
- (code[3] == 0xf0)); // movq r15,[rbp-0x10] |
- ASSERT((code[4] == 0x48) && (code[5] == 0x89) && |
- (code[6] == 0xec)); // mov rsp, rbp |
- ASSERT(code[7] == 0x5d); // pop rbp |
- ASSERT(code[8] == 0xc3); // ret |
- ASSERT((code[9] == 0x0F) && (code[10] == 0x1F) && (code[11] == 0x40) && |
- (code[12] == 0x00)); // nops |
- // Smash code with call instruction and relative target address. |
- uword stub_addr = StubCode::BreakpointReturnEntryPoint(); |
- code[0] = 0x49; |
- code[1] = 0xbb; |
- *reinterpret_cast<uword*>(&code[2]) = stub_addr; |
- code[10] = 0x41; |
- code[11] = 0xff; |
- code[12] = 0xd3; |
- CPU::FlushICache(pc_ - 13, 13); |
-} |
- |
- |
-void CodeBreakpoint::RestoreFunctionReturn() { |
- uint8_t* code = reinterpret_cast<uint8_t*>(pc_ - 13); |
- ASSERT((code[0] == 0x49) && (code[1] == 0xbb)); |
- |
- MemoryRegion code_region(reinterpret_cast<void*>(pc_ - 13), 13); |
- Assembler assembler; |
- |
- assembler.ReturnPatchable(); |
- assembler.FinalizeInstructions(code_region); |
- |
- CPU::FlushICache(pc_ - 13, 13); |
-} |
- |
} // namespace dart |
#endif // defined TARGET_ARCH_X64 |