Ian Rogers fdf08e4b5a perf unwind-libunwind: Make libunwind register reading cross platform ...

Move the libunwind register to perf register mapping functions in
arch/../util/unwind-libunwind.c into a new libunwind-arch
directory. Rename the functions to
__get_perf_regnum_for_unw_regnum_<arch>. Add untested ppc32 and s390
functions. Add a get_perf_regnum_for_unw_regnum function that takes an
ELF machine as well as a register number and chooses the appropriate
architecture implementation.

Split the x86 and powerpc 32 and 64-bit implementations apart so that
a single libunwind-<arch>.h header is included.

Move the e_machine into the unwind_info struct to make it easier to
pass.

Signed-off-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexandre Ghiti <[email protected]>
Cc: Andrew Jones <[email protected]>
Cc: Athira Rajeev <[email protected]>
Cc: Dapeng Mi <[email protected]>
Cc: Dmitrii Dolgov <[email protected]>
Cc: Florian Fainelli <[email protected]>
Cc: Howard Chu <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: John Garry <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Li Guan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Shimin Guo <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Tomas Glozar <[email protected]>
Cc: Will Deacon <[email protected]>
[ Map UNW_PPC32_NIP to PERF_REG_POWERPC_NIP like done for 64-bit, pointed out by a local sashiko ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

2026-05-15 16:18:36 -03:00

..

entry/syscalls

tools headers: Update the syscall tables and unistd.h, to support the new 'rseq_slice_yield' syscall

2026-03-05 17:20:23 -03:00

include

perf arch: Update arch headers to use relative UAPI paths

2026-02-06 12:15:48 -03:00