Jit_SystemRegisters: Make mfspr PIE-compliant #5144
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lioncash
reviewed
Mar 24, 2017
| const void* rcx_relative_base = &CoreTiming::g_last_OC_factor_inverted; | ||
| MOV(64, R(RCX), ImmPtr(rcx_relative_base)); | ||
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| // We're relying on these globals being placed close (within +/-2GB) to each other in memory. |
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lioncash
reviewed
Mar 24, 2017
| const std::intptr_t target = reinterpret_cast<std::intptr_t>(ptr); | ||
| const std::ptrdiff_t offset = target - base; | ||
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| _assert_(offset >= -0x80000000ll && offset <= 0x7FFFFFFFll); |
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| MOV(64, R(RCX), ImmPtr(rcx_relative_base)); | ||
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| // We're relying on these globals being placed close (within +/-2GB) to each other in memory. | ||
| const auto MRelative = [rcx_relative_base](void* ptr) -> OpArg { |
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lioncash
reviewed
Mar 31, 2017
| MOV(64, R(RCX), ImmPtr(rcx_relative_base)); | ||
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| // We're relying on these globals being placed close (within +/-2GB) to each other in memory. | ||
| const auto MRelative = [rcx_relative_base](void* ptr) { |
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Naming the |
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The JIT changes LGTM. |
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Using RCX as a base register for accessing CoreTiming globals.