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Message-Id: <20241216-perf_syscalltbl-v3-14-239f032481d5@rivosinc.com>
Date: Mon, 16 Dec 2024 22:32:59 -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 v3 14/16] perf tools: powerpc: Use generic syscall table
scripts
Use the generic scripts to generate headers from the syscall table
instead of the custom ones for powerpc.
Signed-off-by: Charlie Jenkins <charlie@...osinc.com>
---
tools/perf/Makefile.config | 3 +-
tools/perf/Makefile.perf | 2 +-
tools/perf/arch/powerpc/Makefile | 25 --------------
tools/perf/arch/powerpc/entry/syscalls/Kbuild | 3 ++
.../arch/powerpc/entry/syscalls/Makefile.syscalls | 6 ++++
.../perf/arch/powerpc/entry/syscalls/mksyscalltbl | 39 ----------------------
tools/perf/arch/powerpc/include/syscall_table.h | 8 +++++
tools/perf/util/syscalltbl.c | 8 -----
8 files changed, 19 insertions(+), 75 deletions(-)
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index ec2902e8f5f9baf6bed9946a9c7315527b23b8fb..de7cd12a885f60dc182bfb39493672f884adbacb 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -31,7 +31,7 @@ $(call detected_var,SRCARCH)
ifneq ($(NO_SYSCALL_TABLE),1)
NO_SYSCALL_TABLE := 1
- ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc s390))
+ ifeq ($(SRCARCH),s390)
NO_SYSCALL_TABLE := 0
endif
@@ -49,7 +49,6 @@ endif
# Additional ARCH settings for ppc
ifeq ($(SRCARCH),powerpc)
- CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
endif
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 74c1097f790cba5abfd1f2fbdaf4e7540c553482..f76b23d96fc91aa56807fc581bf820a117c2bda0 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
-generic_syscall_table_archs := riscv arc csky arm sh sparc xtensa x86 alpha parisc arm64 loongarch mips
+generic_syscall_table_archs := riscv arc csky arm sh sparc xtensa x86 alpha parisc arm64 loongarch mips powerpc
ifneq ($(filter $(SRCARCH), $(generic_syscall_table_archs)),)
include $(srctree)/tools/perf/scripts/Makefile.syscalls
endif
diff --git a/tools/perf/arch/powerpc/Makefile b/tools/perf/arch/powerpc/Makefile
index dc8f4fb8e324ab6679d78b5fee3636ba7d2ff7c0..a295a80ea078199547e816d18531820bfdba7961 100644
--- a/tools/perf/arch/powerpc/Makefile
+++ b/tools/perf/arch/powerpc/Makefile
@@ -1,28 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
HAVE_KVM_STAT_SUPPORT := 1
PERF_HAVE_JITDUMP := 1
-
-#
-# Syscall table generation for perf
-#
-
-out := $(OUTPUT)arch/powerpc/include/generated/asm
-header32 := $(out)/syscalls_32.c
-header64 := $(out)/syscalls_64.c
-sysprf := $(srctree)/tools/perf/arch/powerpc/entry/syscalls
-sysdef := $(sysprf)/syscall.tbl
-systbl := $(sysprf)/mksyscalltbl
-
-# Create output directory if not already present
-$(shell [ -d '$(out)' ] || mkdir -p '$(out)')
-
-$(header64): $(sysdef) $(systbl)
- $(Q)$(SHELL) '$(systbl)' '64' $(sysdef) > $@
-
-$(header32): $(sysdef) $(systbl)
- $(Q)$(SHELL) '$(systbl)' '32' $(sysdef) > $@
-
-clean::
- $(call QUIET_CLEAN, powerpc) $(RM) $(header32) $(header64)
-
-archheaders: $(header32) $(header64)
diff --git a/tools/perf/arch/powerpc/entry/syscalls/Kbuild b/tools/perf/arch/powerpc/entry/syscalls/Kbuild
new file mode 100644
index 0000000000000000000000000000000000000000..84c6599b4ea6a160217a3496449b205f2263f0fb
--- /dev/null
+++ b/tools/perf/arch/powerpc/entry/syscalls/Kbuild
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+syscall-y += syscalls_32.h
+syscall-y += syscalls_64.h
diff --git a/tools/perf/arch/powerpc/entry/syscalls/Makefile.syscalls b/tools/perf/arch/powerpc/entry/syscalls/Makefile.syscalls
new file mode 100644
index 0000000000000000000000000000000000000000..f7e87a61401c14a1d3a8a04fe2c8ecc8bedcc1b0
--- /dev/null
+++ b/tools/perf/arch/powerpc/entry/syscalls/Makefile.syscalls
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+
+syscall_abis_32 += spu nospu
+syscall_abis_64 += spu nospu
+
+syscalltbl = $(srctree)/tools/perf/arch/powerpc/entry/syscalls/syscall.tbl
diff --git a/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl b/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl
deleted file mode 100755
index 0eb316fe6dd1175a86035f76f9f3cf7501c376bd..0000000000000000000000000000000000000000
--- a/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-#
-# Generate system call table for perf. Derived from
-# s390 script.
-#
-# Copyright IBM Corp. 2017
-# Author(s): Hendrik Brueckner <brueckner@...ux.vnet.ibm.com>
-# Changed by: Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>
-
-wordsize=$1
-SYSCALL_TBL=$2
-
-if ! test -r $SYSCALL_TBL; then
- echo "Could not read input file" >&2
- exit 1
-fi
-
-create_table()
-{
- local wordsize=$1
- local max_nr nr abi sc discard
- max_nr=-1
- nr=0
-
- echo "static const char *const syscalltbl_powerpc_${wordsize}[] = {"
- while read nr abi sc discard; do
- if [ "$max_nr" -lt "$nr" ]; then
- printf '\t[%d] = "%s",\n' $nr $sc
- max_nr=$nr
- fi
- done
- echo '};'
- echo "#define SYSCALLTBL_POWERPC_${wordsize}_MAX_ID $max_nr"
-}
-
-grep -E "^[[:digit:]]+[[:space:]]+(common|spu|nospu|${wordsize})" $SYSCALL_TBL \
- |sort -k1 -n \
- |create_table ${wordsize}
diff --git a/tools/perf/arch/powerpc/include/syscall_table.h b/tools/perf/arch/powerpc/include/syscall_table.h
new file mode 100644
index 0000000000000000000000000000000000000000..7ff51b783000d727ec48be960730b81ecdb05575
--- /dev/null
+++ b/tools/perf/arch/powerpc/include/syscall_table.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <asm/bitsperlong.h>
+
+#if __BITS_PER_LONG == 64
+#include <asm/syscalls_64.h>
+#else
+#include <asm/syscalls_32.h>
+#endif
diff --git a/tools/perf/util/syscalltbl.c b/tools/perf/util/syscalltbl.c
index 675702d686d0d1b53dd3ee2017cc9695686b9c63..8869fed1a58946c590484816354d8c74aff52ee3 100644
--- a/tools/perf/util/syscalltbl.c
+++ b/tools/perf/util/syscalltbl.c
@@ -18,14 +18,6 @@
#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(__powerpc64__)
-#include <asm/syscalls_64.c>
-const int syscalltbl_native_max_id = SYSCALLTBL_POWERPC_64_MAX_ID;
-static const char *const *syscalltbl_native = syscalltbl_powerpc_64;
-#elif defined(__powerpc__)
-#include <asm/syscalls_32.c>
-const int syscalltbl_native_max_id = SYSCALLTBL_POWERPC_32_MAX_ID;
-static const char *const *syscalltbl_native = syscalltbl_powerpc_32;
#elif defined(GENERIC_SYSCALL_TABLE)
#include <syscall_table.h>
const int syscalltbl_native_max_id = SYSCALLTBL_MAX_ID;
--
2.34.1
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