perf tools alpha: Support syscall header

alpha uses a syscall table, use that in perf instead of requiring
libaudit.

Signed-off-by: Charlie Jenkins <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Christian Brauner <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Günther Noack <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: John Garry <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mickaël Salaün <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Will Deacon <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

Author: charlie-rivos

tools/perf/Makefile.perf

@@ -311,7 +311,7 @@ FEATURE_TESTS := all
 endif
 endif
 # architectures that use the generic syscall table
-generic_syscall_table_archs := riscv arc csky arm sh sparc xtensa x86
+generic_syscall_table_archs := riscv arc csky arm sh sparc xtensa x86 alpha
 ifneq ($(filter $(SRCARCH), $(generic_syscall_table_archs)),)
 include $(srctree)/tools/perf/scripts/Makefile.syscalls
 endif

tools/perf/arch/alpha/entry/syscalls/Kbuild

@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+syscall-y += syscalls_64.h

tools/perf/arch/alpha/entry/syscalls/Makefile.syscalls

@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
+syscall_abis_64  +=
+
+syscalltbl = $(srctree)/tools/perf/arch/alpha/entry/syscalls/syscall.tbl