[Lldb-commits] [lldb] [lldb][AArch64][Linux] Track all register cache validity in one place (PR #197113)

[David Spickett via lldb-commits]

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@@ -1010,7 +987,7 @@ Status NativeRegisterContextLinux_arm64::ReadAllRegisterValues(
     // Use the header size not the buffer size, as we may be using the buffer
     // for fake data, which we do not want to write out.
     assert(m_za_header.size <= GetZABufferSize());
-    dst = AddSavedRegisters(dst, RegisterSetType::SME, GetZABuffer(),
+    dst = AddSavedRegisters(dst, RegisterSetType::ZA, GetZABuffer(),
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DavidSpickett wrote:

RegisterSetType::SME always meant ZA really.

SME registers from the user POV are:
* ZA - a real register with it's own ptrace set
* svcr / svl - pseudo registers we derive from the streaming sve set
* ZT - a real register provided by sme2.

So I've changed SME -> ZA to be more honest about what it tracks. The names won't always line up with ptrace's names exactly but generally we should try to.

https://github.com/llvm/llvm-project/pull/197113