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proposal: x/sys/unix: PtraceGetRegs should allow getting non-default registers #62333

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mitar opened this issue Aug 28, 2023 · 1 comment
Open

proposal: x/sys/unix: PtraceGetRegs should allow getting non-default registers #62333

mitar opened this issue Aug 28, 2023 · 1 comment
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@mitar
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mitar commented Aug 28, 2023 •
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Currently unix.PtraceGetRegs only gets default set of registers, NT_PRSTATUS. It would be great if it would be possible to also get other sets. Probably we need another function for this. Example is that on arm, one needs to use NT_ARM_SYSTEM_CALL to get the system call register.

Similarly for setting registers.

Because ptracePtr is private, one has to duplicate it if you want to create a custom ptrace call.
@mitar mitar added the Proposal label Aug 28, 2023
@gopherbot gopherbot added this to the Proposal milestone Aug 28, 2023
@ianlancetaylor
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Changing PtraceGetRegs would break too much existing code. In any case, it has the wrong type for receiving the register values. As far as I can see for each processor we have to define a struct type for each register set we want to support.

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