[PATCH 18/27] parisc: syscalls: switch to generic syscalltbl.sh

Masahiro Yamada
2021-01-28T01:05:24Z

As of v5.11-rc1, 12 architectures duplicate similar shell scripts in
order to generate syscall table headers. My goal is to unify them into
the single scripts/syscalltbl.sh.

This commit converts parisc to use scripts/syscalltbl.sh. This also
unifies syscall_table_64.h and syscall_table_c32.h.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

arch/parisc/include/asm/Kbuild | 1 -
arch/parisc/kernel/syscall.S | 16 +++++-----
arch/parisc/kernel/syscalls/Makefile | 19 ++++--------
arch/parisc/kernel/syscalls/syscalltbl.sh | 36 -----------------------
4 files changed, 12 insertions(+), 60 deletions(-)
delete mode 100644 arch/parisc/kernel/syscalls/syscalltbl.sh

diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index 4406475a2304..e6e7f74c8ac9 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -1,7 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
generated-y += syscall_table_32.h
generated-y += syscall_table_64.h
-generated-y += syscall_table_c32.h
generic-y += kvm_para.h
generic-y += mcs_spinlock.h
generic-y += user.h
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 322503780db6..3f24a0af1e04 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -919,24 +919,24 @@ ENTRY(lws_table)
END(lws_table)
/* End of lws table */

+#ifdef CONFIG_64BIT
+#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, compat)
+#else
+#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native)
+#endif
#define __SYSCALL(nr, entry) ASM_ULONG_INSN entry
.align 8
ENTRY(sys_call_table)
.export sys_call_table,data
-#ifdef CONFIG_64BIT
-#include <asm/syscall_table_c32.h> /* Compat syscalls */
-#else
-#include <asm/syscall_table_32.h> /* 32-bit native syscalls */
-#endif
+#include <asm/syscall_table_32.h> /* 32-bit syscalls */
END(sys_call_table)

#ifdef CONFIG_64BIT
.align 8
ENTRY(sys_call_table64)
-#include <asm/syscall_table_64.h> /* 64-bit native syscalls */
+#include <asm/syscall_table_64.h> /* 64-bit syscalls */
END(sys_call_table64)
#endif
-#undef __SYSCALL

/*
All light-weight-syscall atomic operations
@@ -961,5 +961,3 @@ END(lws_lock_start)
.previous

.end
-
-
diff --git a/arch/parisc/kernel/syscalls/Makefile b/arch/parisc/kernel/syscalls/Makefile
index 556fe30a6c8f..77fea5beb9be 100644
--- a/arch/parisc/kernel/syscalls/Makefile
+++ b/arch/parisc/kernel/syscalls/Makefile
@@ -7,7 +7,7 @@ _dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \

syscall := $(srctree)/$(src)/syscall.tbl
syshdr := $(srctree)/$(src)/syscallhdr.sh
-systbl := $(srctree)/$(src)/syscalltbl.sh
+systbl := $(srctree)/scripts/syscalltbl.sh

quiet_cmd_syshdr = SYSHDR $@
cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@' \
@@ -16,10 +16,7 @@ quiet_cmd_syshdr = SYSHDR $@
'$(syshdr_offset_$(basetarget))'

quiet_cmd_systbl = SYSTBL $@
- cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@' \
- '$(systbl_abis_$(basetarget))' \
- '$(systbl_abi_$(basetarget))' \
- '$(systbl_offset_$(basetarget))'
+ cmd_systbl = $(CONFIG_SHELL) $(systbl) $< $@ $(abis)

syshdr_abis_unistd_32 := common,32
$(uapi)/unistd_32.h: $(syscall) $(syshdr) FORCE
@@ -29,23 +26,17 @@ syshdr_abis_unistd_64 := common,64
$(uapi)/unistd_64.h: $(syscall) $(syshdr) FORCE
$(call if_changed,syshdr)

-systbl_abis_syscall_table_32 := common,32
+$(kapi)/syscall_table_32.h: abis := common,32
$(kapi)/syscall_table_32.h: $(syscall) $(systbl) FORCE
$(call if_changed,systbl)

-systbl_abis_syscall_table_64 := common,64
+$(kapi)/syscall_table_64.h: abis := common,64
$(kapi)/syscall_table_64.h: $(syscall) $(systbl) FORCE
$(call if_changed,systbl)

-systbl_abis_syscall_table_c32 := common,32
-systbl_abi_syscall_table_c32 := c32
-$(kapi)/syscall_table_c32.h: $(syscall) $(systbl) FORCE
- $(call if_changed,systbl)
-
uapisyshdr-y += unistd_32.h unistd_64.h
kapisyshdr-y += syscall_table_32.h \
- syscall_table_64.h \
- syscall_table_c32.h
+ syscall_table_64.h

uapisyshdr-y := $(addprefix $(uapi)/, $(uapisyshdr-y))
kapisyshdr-y := $(addprefix $(kapi)/, $(kapisyshdr-y))
diff --git a/arch/parisc/kernel/syscalls/syscalltbl.sh b/arch/parisc/kernel/syscalls/syscalltbl.sh
deleted file mode 100644
index f7393a7b18aa..000000000000
--- a/arch/parisc/kernel/syscalls/syscalltbl.sh
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-
-in="$1"
-out="$2"
-my_abis=`echo "($3)" | tr ',' '|'`
-my_abi="$4"
-offset="$5"
-
-emit() {
- t_nxt="$1"
- t_nr="$2"
- t_entry="$3"
-
- while [ $t_nxt -lt $t_nr ]; do
- printf "__SYSCALL(%s,sys_ni_syscall)\n" "${t_nxt}"
- t_nxt=$((t_nxt+1))
- done
- printf "__SYSCALL(%s,%s)\n" "${t_nxt}" "${t_entry}"
-}
-
-grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
- nxt=0
- if [ -z "$offset" ]; then
- offset=0
- fi
-
- while read nr abi name entry compat ; do
- if [ "$my_abi" = "c32" ] && [ ! -z "$compat" ]; then
- emit $((nxt+offset)) $((nr+offset)) $compat
- else
- emit $((nxt+offset)) $((nr+offset)) $entry
- fi
- nxt=$((nr+1))
- done
-) > "$out"
--
2.27.0