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Message-Id: <20241212-perf_syscalltbl-v2-15-f8ca984ffe40@rivosinc.com>
Date: Thu, 12 Dec 2024 16:33:05 -0800
From: Charlie Jenkins <charlie@...osinc.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Namhyung Kim <namhyung@...nel.org>, Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Mickaël Salaün <mic@...ikod.net>,
Günther Noack <gnoack@...gle.com>,
Christian Brauner <brauner@...nel.org>, Guo Ren <guoren@...nel.org>,
John Garry <john.g.garry@...cle.com>, Will Deacon <will@...nel.org>,
James Clark <james.clark@...aro.org>, Mike Leach <mike.leach@...aro.org>,
Leo Yan <leo.yan@...ux.dev>, Jonathan Corbet <corbet@....net>,
Björn Töpel <bjorn@...osinc.com>,
Arnd Bergmann <arnd@...db.de>
Cc: linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
linux-riscv@...ts.infradead.org, linux-security-module@...r.kernel.org,
bpf@...r.kernel.org, linux-csky@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org,
Charlie Jenkins <charlie@...osinc.com>
Subject: [PATCH v2 15/16] 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@...osinc.com>
---
tools/perf/Makefile.config | 8 ++----
tools/perf/Makefile.perf | 2 +-
tools/perf/arch/s390/Makefile | 21 --------------
tools/perf/arch/s390/entry/syscalls/Kbuild | 2 ++
.../arch/s390/entry/syscalls/Makefile.syscalls | 5 ++++
tools/perf/arch/s390/entry/syscalls/mksyscalltbl | 32 ----------------------
tools/perf/arch/s390/include/syscall_table.h | 2 ++
tools/perf/util/syscalltbl.c | 6 +---
8 files changed, 13 insertions(+), 65 deletions(-)
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 1ca8c9814cbffbc4bbed3b40e0d6e53f0f9b77f1..c62622b4eb3dcbdfbd49ad371f15b92bfa4a6c43 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -31,12 +31,8 @@ $(call detected_var,SRCARCH)
ifneq ($(NO_SYSCALL_TABLE),1)
NO_SYSCALL_TABLE := 1
- ifeq ($(SRCARCH),s390)
- NO_SYSCALL_TABLE := 0
- endif
-
# architectures that use the generic syscall table scripts
- ifeq ($(SRCARCH),$(filter $(SRCARCH),riscv arc csky arm sh sparc xtensa x86 alpha parisc arm64 loongarch mips powerpc))
+ ifeq ($(SRCARCH),$(filter $(SRCARCH),riscv arc csky arm sh sparc xtensa x86 alpha parisc arm64 loongarch mips powerpc s390))
NO_SYSCALL_TABLE := 0
CFLAGS += -DGENERIC_SYSCALL_TABLE
CFLAGS += -I$(OUTPUT)/tools/perf/arch/$(SRCARCH)/include/generated
@@ -78,7 +74,7 @@ ifeq ($(SRCARCH),loongarch)
endif
ifeq ($(ARCH),s390)
- CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
+ CFLAGS += -fPIC
endif
ifeq ($(ARCH),mips)
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 45bccc88e0087b57e4d9549e281cdbafc152a2fd..1f3262c1f9d44261be0315c693837cfdfb3071de 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -311,7 +311,7 @@ FEATURE_TESTS := all
endif
endif
# architectures that use the generic syscall table
-ifeq ($(SRCARCH),$(filter $(SRCARCH),riscv arc csky arm sh sparc xtensa x86 alpha parisc arm64 loongarch mips powerpc))
+ifeq ($(SRCARCH),$(filter $(SRCARCH),riscv arc csky arm sh sparc xtensa x86 alpha parisc arm64 loongarch mips powerpc s390))
include $(srctree)/tools/perf/scripts/Makefile.syscalls
endif
include Makefile.config
diff --git a/tools/perf/arch/s390/Makefile b/tools/perf/arch/s390/Makefile
index c431c21b11ef824535c1b9fb6ca4246d666fc97b..0033698a65ce5d5d7ebcc280399957561dd9d2c6 100644
--- 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
index 0000000000000000000000000000000000000000..9a41e3572c3afd4f202321fd9e492714540e8fd3
--- /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
index 0000000000000000000000000000000000000000..9762d7abf17c3f79a6213e7306a5f7b56e833a78
--- /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
index 52eb88a77c94727aeb8c15427cdd43dfe5f9f2bd..0000000000000000000000000000000000000000
--- 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@...ux.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
index 0000000000000000000000000000000000000000..b53e31c15805319a01719c22d489c4037378b02b
--- /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
--- 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;
--
2.34.1
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