perf tools s390: Use generic syscall table scripts

Use the generic scripts to generate headers from the syscall table
instead of the custom ones for s390.

Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Guo Ren <guoren@kernel.org>
Cc: Günther Noack <gnoack@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mickaël Salaün <mic@digikod.net>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20250108-perf_syscalltbl-v6-15-7543b5293098@rivosinc.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 7213f6d806e5497309524cacb16bd8313e9bc5cb..feb61be7c4f93d7ebe0530839aebcd03ab8ec425 100644 (file)
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -31,10 +31,6 @@ $(call detected_var,SRCARCH)
 ifneq ($(NO_SYSCALL_TABLE),1)
   NO_SYSCALL_TABLE := 1
 
-  ifeq ($(SRCARCH),s390)
-    NO_SYSCALL_TABLE := 0
-  endif
-
   # architectures that use the generic syscall table scripts
   ifneq ($(filter $(SRCARCH), $(generic_syscall_table_archs)),)
     NO_SYSCALL_TABLE := 0
@@ -90,7 +86,7 @@ ifeq ($(SRCARCH),loongarch)
 endif
 
 ifeq ($(ARCH),s390)
-  CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
+  CFLAGS += -fPIC
 endif
 
 ifeq ($(ARCH),mips)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 0e30da3b781b5a51ea179ab15993391ff7055635..8081adf0e02354b9662a4e3c8493d6b1cec9fe25 100644 (file)
--- a/tools/perf/Makefile.perf
+++ b/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 alpha parisc arm64 loongarch mips powerpc
+generic_syscall_table_archs := riscv arc csky arm sh sparc xtensa x86 alpha parisc arm64 loongarch mips powerpc s390
 ifneq ($(filter $(SRCARCH), $(generic_syscall_table_archs)),)
 include $(srctree)/tools/perf/scripts/Makefile.syscalls
 endif

diff --git a/tools/perf/arch/s390/Makefile b/tools/perf/arch/s390/Makefile
index c431c21b11ef824535c1b9fb6ca4246d666fc97b..0033698a65ce5d5d7ebcc280399957561dd9d2c6 100644 (file)
--- a/tools/perf/arch/s390/Makefile
+++ b/tools/perf/arch/s390/Makefile
@@ -1,24 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0-only
 HAVE_KVM_STAT_SUPPORT := 1
 PERF_HAVE_JITDUMP := 1
-
-#
-# Syscall table generation for perf
-#
-
-out    := $(OUTPUT)arch/s390/include/generated/asm
-header := $(out)/syscalls_64.c
-sysprf := $(srctree)/tools/perf/arch/s390/entry/syscalls
-sysdef := $(sysprf)/syscall.tbl
-systbl := $(sysprf)/mksyscalltbl
-
-# Create output directory if not already present
-$(shell [ -d '$(out)' ] || mkdir -p '$(out)')
-
-$(header): $(sysdef) $(systbl)
-       $(Q)$(SHELL) '$(systbl)' $(sysdef) > $@
-
-clean::
-       $(call QUIET_CLEAN, s390) $(RM) $(header)
-
-archheaders: $(header)

diff --git a/tools/perf/arch/s390/entry/syscalls/Kbuild b/tools/perf/arch/s390/entry/syscalls/Kbuild
new file mode 100644 (file)
index 0000000..9a41e35
--- /dev/null
+++ b/tools/perf/arch/s390/entry/syscalls/Kbuild
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+syscall-y += syscalls_64.h

diff --git a/tools/perf/arch/s390/entry/syscalls/Makefile.syscalls b/tools/perf/arch/s390/entry/syscalls/Makefile.syscalls
new file mode 100644 (file)
index 0000000..9762d7a
--- /dev/null
+++ b/tools/perf/arch/s390/entry/syscalls/Makefile.syscalls
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
+syscall_abis_64 += renameat rlimit memfd_secret
+
+syscalltbl = $(srctree)/tools/perf/arch/s390/entry/syscalls/syscall.tbl

diff --git a/tools/perf/arch/s390/entry/syscalls/mksyscalltbl b/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
deleted file mode 100755 (executable)
index 52eb88a..0000000
--- a/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-#
-# Generate system call table for perf
-#
-# Copyright IBM Corp. 2017, 2018
-# Author(s):  Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
-#
-
-SYSCALL_TBL=$1
-
-if ! test -r $SYSCALL_TBL; then
-       echo "Could not read input file" >&2
-       exit 1
-fi
-
-create_table()
-{
-       local max_nr nr abi sc discard
-
-       echo 'static const char *const syscalltbl_s390_64[] = {'
-       while read nr abi sc discard; do
-               printf '\t[%d] = "%s",\n' $nr $sc
-               max_nr=$nr
-       done
-       echo '};'
-       echo "#define SYSCALLTBL_S390_64_MAX_ID $max_nr"
-}
-
-grep -E "^[[:digit:]]+[[:space:]]+(common|64)" $SYSCALL_TBL    \
-       |sort -k1 -n                                    \
-       |create_table

diff --git a/tools/perf/arch/s390/include/syscall_table.h b/tools/perf/arch/s390/include/syscall_table.h
new file mode 100644 (file)
index 0000000..b53e31c
--- /dev/null
+++ b/tools/perf/arch/s390/include/syscall_table.h
@@ -0,0 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <asm/syscalls_64.h>

diff --git a/tools/perf/util/syscalltbl.c b/tools/perf/util/syscalltbl.c
index 8869fed1a58946c590484816354d8c74aff52ee3..210f61b0a7a264a427ebb602185d3a9da2f426f4 100644 (file)
--- a/tools/perf/util/syscalltbl.c
+++ b/tools/perf/util/syscalltbl.c
@@ -14,11 +14,7 @@
 #include <string.h>
 #include "string2.h"
 
-#if defined(__s390x__)
-#include <asm/syscalls_64.c>
-const int syscalltbl_native_max_id = SYSCALLTBL_S390_64_MAX_ID;
-static const char *const *syscalltbl_native = syscalltbl_s390_64;
-#elif defined(GENERIC_SYSCALL_TABLE)
+#if defined(GENERIC_SYSCALL_TABLE)
 #include <syscall_table.h>
 const int syscalltbl_native_max_id = SYSCALLTBL_MAX_ID;
 static const char *const *syscalltbl_native = syscalltbl;