Rainer Orth 587eaefe87 [sanitizer_common] Handle ptrace on Linux/sparc64 (#109310) ...

When ASan testing is enabled on SPARC as per PR #107405, the
```
  AddressSanitizer-sparc-linux :: TestCases/Linux/ptrace.cpp
```
`FAIL`s on Linux/sparc64. This happens because the `ptrace` interceptor
has no support for that target at all.

This patch adds the missing parts and accounts for a couple of issues
specific to this target:
- In some cases, SPARC just needs to be included in the list of
supported targets.
- Besides, the types used by the `PTRACE_GETREGS` and `PTRACE_GETFPREGS`
requests need to be filled in.
- `ptrace` has a weird quirk on this target: for a couple of requests,
the meaning of the `data` and `addr` args is reversed. All of the
`Linux/ptrace.cpp` test and the interceptor, pre-syscall and
post-syscall hooks need to account for that swap in their checks.

Tested on `sparc64-unknown-linux-gnu` and `x86_64-pc-linux-gnu`.

2024-09-30 13:41:20 +02:00

5.4 KiB

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