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Message-Id: <20241104-perf_syscalltbl-v1-13-9adae5c761ef@rivosinc.com>
Date: Mon, 04 Nov 2024 13:06:15 -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>, Albert Ou <aou@...s.berkeley.edu>,
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>,
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 RFT 13/16] perf tools: mips: Use generic syscall scripts
Use the generic scripts to generate headers from the syscall table for
mips.
Signed-off-by: Charlie Jenkins <charlie@...osinc.com>
---
tools/perf/Makefile.config | 4 +--
tools/perf/Makefile.perf | 2 +-
tools/perf/arch/mips/Makefile | 18 ------------
tools/perf/arch/mips/entry/syscalls/Kbuild | 2 ++
.../arch/mips/entry/syscalls/Makefile.syscalls | 5 ++++
tools/perf/arch/mips/entry/syscalls/mksyscalltbl | 32 ----------------------
tools/perf/arch/mips/include/syscall_table.h | 2 ++
tools/perf/util/syscalltbl.c | 4 ---
8 files changed, 12 insertions(+), 57 deletions(-)
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 2cf45e3f2659..ce7e9ae276e8 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -31,12 +31,12 @@ $(call detected_var,SRCARCH)
ifneq ($(NO_SYSCALL_TABLE),1)
NO_SYSCALL_TABLE := 1
- ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc s390 mips))
+ ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc s390))
NO_SYSCALL_TABLE := 0
endif
# architectures that use the generic syscall table scripts
- ifeq ($(SRCARCH),$(filter $(SRCARCH),riscv arc csky arm sh sparc xtensa x86 alpha parisc arm64 loongarch))
+ ifeq ($(SRCARCH),$(filter $(SRCARCH),riscv arc csky arm sh sparc xtensa x86 alpha parisc arm64 loongarch mips))
NO_SYSCALL_TABLE := 0
CFLAGS += -DGENERIC_SYSCALL_TABLE
CFLAGS += -I$(OUTPUT)arch/$(SRCARCH)/include/generated
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index ce2c4e1c0623..c9b78518c9a5 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -311,7 +311,7 @@ FEATURE_TESTS := all
endif
endif
# architectures that use the generic syscall table
-ifeq ($(SRCARCH),$(filter $(SRCARCH),riscv arc csky arm sh sparc xtensa x86 alpha parisc arm64 loongarch))
+ifeq ($(SRCARCH),$(filter $(SRCARCH),riscv arc csky arm sh sparc xtensa x86 alpha parisc arm64 loongarch mips))
include $(srctree)/tools/perf/scripts/Makefile.syscalls
endif
include Makefile.config
diff --git a/tools/perf/arch/mips/Makefile b/tools/perf/arch/mips/Makefile
index cd0b011b3be5..6e1106fab26e 100644
--- a/tools/perf/arch/mips/Makefile
+++ b/tools/perf/arch/mips/Makefile
@@ -2,21 +2,3 @@
ifndef NO_DWARF
PERF_HAVE_DWARF_REGS := 1
endif
-
-# Syscall table generation for perf
-out := $(OUTPUT)arch/mips/include/generated/asm
-header := $(out)/syscalls_n64.c
-sysprf := $(srctree)/tools/perf/arch/mips/entry/syscalls
-sysdef := $(sysprf)/syscall_n64.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, mips) $(RM) $(header)
-
-archheaders: $(header)
diff --git a/tools/perf/arch/mips/entry/syscalls/Kbuild b/tools/perf/arch/mips/entry/syscalls/Kbuild
new file mode 100644
index 000000000000..9a41e3572c3a
--- /dev/null
+++ b/tools/perf/arch/mips/entry/syscalls/Kbuild
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+syscall-y += syscalls_64.h
diff --git a/tools/perf/arch/mips/entry/syscalls/Makefile.syscalls b/tools/perf/arch/mips/entry/syscalls/Makefile.syscalls
new file mode 100644
index 000000000000..9ee914bdfb05
--- /dev/null
+++ b/tools/perf/arch/mips/entry/syscalls/Makefile.syscalls
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
+syscall_abis_64 += n64
+
+syscalltbl = $(srctree)/tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl
diff --git a/tools/perf/arch/mips/entry/syscalls/mksyscalltbl b/tools/perf/arch/mips/entry/syscalls/mksyscalltbl
deleted file mode 100644
index c0d93f959c4e..000000000000
--- a/tools/perf/arch/mips/entry/syscalls/mksyscalltbl
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-#
-# Generate system call table for perf. Derived from
-# s390 script.
-#
-# Author(s): Hendrik Brueckner <brueckner@...ux.vnet.ibm.com>
-# Changed by: Tiezhu Yang <yangtiezhu@...ngson.cn>
-
-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_mips_n64[] = {'
- while read nr abi sc discard; do
- printf '\t[%d] = "%s",\n' $nr $sc
- max_nr=$nr
- done
- echo '};'
- echo "#define SYSCALLTBL_MIPS_N64_MAX_ID $max_nr"
-}
-
-grep -E "^[[:digit:]]+[[:space:]]+(n64)" $SYSCALL_TBL \
- |sort -k1 -n \
- |create_table
diff --git a/tools/perf/arch/mips/include/syscall_table.h b/tools/perf/arch/mips/include/syscall_table.h
new file mode 100644
index 000000000000..b53e31c15805
--- /dev/null
+++ b/tools/perf/arch/mips/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 7c8550ef0d7b..724e1391893f 100644
--- a/tools/perf/util/syscalltbl.c
+++ b/tools/perf/util/syscalltbl.c
@@ -25,10 +25,6 @@ static const char *const *syscalltbl_native = syscalltbl_powerpc_64;
#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(__mips__)
-#include <asm/syscalls_n64.c>
-const int syscalltbl_native_max_id = SYSCALLTBL_MIPS_N64_MAX_ID;
-static const char *const *syscalltbl_native = syscalltbl_mips_n64;
#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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