[PATCH RFT 13/16] perf tools: mips: Use generic syscall scripts

[Charlie Jenkins]

Use the generic scripts to generate headers from the syscall table for
mips.

Signed-off-by: Charlie Jenkins <charlie at rivosinc.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 at linux.vnet.ibm.com>
-# Changed by: Tiezhu Yang <yangtiezhu at loongson.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