[PATCH 1/3] c6x: add Makefile to invoke syscall table generation script

[Firoz Khan]

Add Makefile to invoke the system call table generation script
which is placed in scripts directory as a common location acc-
essible for all the architectures.

scripts/syscallhdr.sh will generate uapi header and scripts-
/syscalltbl.sh will generate kapi header respectively. There
is another scripts scripts/syscallnr.sh can generate total
number of syscall which doesn't invoke from this Makefile.

Signed-off-by: Firoz Khan <firoz.khan@xxxxxxxxxx>
---
 arch/c6x/kernel/syscalls/Makefile | 41 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 arch/c6x/kernel/syscalls/Makefile

diff --git a/arch/c6x/kernel/syscalls/Makefile b/arch/c6x/kernel/syscalls/Makefile
new file mode 100644
index 0000000..1865a80
--- /dev/null
+++ b/arch/c6x/kernel/syscalls/Makefile
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0
+kapi := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
+
+_dummy := $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)')	\
+	  $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)')
+
+syscall := $(srctree)/scripts/syscalls/syscall.tbl
+syshdr := $(srctree)/scripts/syscallhdr.sh
+systbl := $(srctree)/scripts/syscalltbl.sh
+
+quiet_cmd_syshdr = SYSHDR  $@
+      cmd_syshdr = $(CONFIG_SHELL) '$(syshdr)' '$<' '$@'	\
+		   '$(syshdr_abis_$(basetarget))'		\
+		   '$(syshdr_pfx_$(basetarget))'		\
+		   '$(syshdr_offset_$(basetarget))'
+
+quiet_cmd_systbl = SYSTBL  $@
+      cmd_systbl = $(CONFIG_SHELL) '$(systbl)' '$<' '$@'	\
+		   '$(systbl_abis_$(basetarget))'		\
+		   '$(systbl_abi_$(basetarget))'		\
+		   '$(systbl_offset_$(basetarget))'
+
+syshdr_abis_unistd_32 := common,32,rename,stat64,archs0
+$(uapi)/unistd_32.h: $(syscall) $(syshdr)
+	$(call if_changed,syshdr)
+
+systbl_abis_syscall_table := common,32,rename,stat64,archs0
+systbl_abi_syscall_table := 32
+$(kapi)/syscall_table.h: $(syscall) $(systbl)
+	$(call if_changed,systbl)
+
+uapisyshdr-y		+= unistd_32.h
+kapisyshdr-y		+= syscall_table.h
+
+targets	+= $(uapisyshdr-y) $(kapisyshdr-y)
+
+PHONY += all
+all: $(addprefix $(uapi)/,$(uapisyshdr-y))
+all: $(addprefix $(kapi)/,$(kapisyshdr-y))
+	@:
-- 
1.9.1