perf python: Update syscall helpers and expose arch_strerrno

Update the PyArg_ParseTupleAndKeywords format string for
pyrf__syscall_name() and pyrf__syscall_id() from "i|$i" to "i|i" (and
"s|$i" to "s|i"), allowing elf_machine to be passed as an optional
positional argument as well as a keyword argument. Update syscall_id()
and syscall_name() in perf.pyi to match, and set the return type of
syscall_name() to Optional[str] as unknown syscall numbers return None.

Also expose perf_env__arch_strerrno() as perf.arch_strerrno(err,
elf_machine=None) so standalone Python scripts can resolve
architecture-specific errno names directly from the auto-generated
trace beauty tables instead of maintaining duplicate errno dictionaries
in Python. Tighten the macro pattern in arch_errno_names.sh to
E[A-Z0-9]+ so compiler -D flags containing underscores (such as LLVM's
-DEXPERIMENTAL_KEY_INSTRUCTIONS=1) do not shadow EPERM (1), and add
EM_SPARC32PLUS alongside EM_SPARC and EM_SPARCV9.

Assisted-by: Antigravity:gemini-3.1-pro
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

0 files changed, 0 insertions, 0 deletions