Merge tag 'microblaze-v5.0-rc1' of git://git.monstr.eu/linux-2.6-microblaze

Pull arch/microblaze updates from Michal Simek:

 - Fix multiple Kbuild/Makefile issues

 - Start to use system call table generation

* tag 'microblaze-v5.0-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: remove the explicit removal of system.dtb
  microblaze: fix race condition in building boot images
  microblaze: add linux.bin* and simpleImage.* to PHONY
  microblaze: fix multiple bugs in arch/microblaze/boot/Makefile
  microblaze: move "... is ready" messages to arch/microblaze/Makefile
  microblaze: adjust the help to the real behavior
  microblaze: generate uapi header and system call table files
  microblaze: add system call table generation support
  microblaze: move __NR_syscalls macro from asm/unistd.h
  microblaze: Typo s/use use/use/

arch/microblaze/Makefile

@@ -79,21 +79,30 @@ all: linux.bin
 archclean:
 	$(Q)$(MAKE) $(clean)=$(boot)
 
-linux.bin linux.bin.gz linux.bin.ub: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+archheaders:
+	$(Q)$(MAKE) $(build)=arch/microblaze/kernel/syscalls all
 
-simpleImage.%: vmlinux
+PHONY += linux.bin linux.bin.gz linux.bin.ub
+linux.bin.ub linux.bin.gz: linux.bin
+linux.bin: vmlinux
+linux.bin linux.bin.gz linux.bin.ub:
 	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+	@echo 'Kernel: $(boot)/$@ is ready' ' (#'`cat .version`')'
+
+PHONY += simpleImage.$(DTB)
+simpleImage.$(DTB): vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(addprefix $(boot)/$@., ub unstrip strip)
+	@echo 'Kernel: $(boot)/$@ is ready' ' (#'`cat .version`')'
 
 define archhelp
   echo '* linux.bin    - Create raw binary'
   echo '  linux.bin.gz - Create compressed raw binary'
   echo '  linux.bin.ub - Create U-Boot wrapped raw binary'
-  echo '  simpleImage.<dt> - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
-  echo '                   - stripped elf with fdt blob'
-  echo '  simpleImage.<dt>.unstrip - full ELF image with fdt blob'
-  echo '  *_defconfig      - Select default config from arch/microblaze/configs'
-  echo ''
+  echo '  simpleImage.<dt> - Create the following images with <dt>.dtb linked in'
+  echo '                    simpleImage.<dt>        : raw image'
+  echo '                    simpleImage.<dt>.ub     : raw image with U-Boot header'
+  echo '                    simpleImage.<dt>.unstrip: ELF (identical to vmlinux)'
+  echo '                    simpleImage.<dt>.strip  : stripped ELF'
   echo '  Targets with <dt> embed a device tree blob inside the image'
   echo '  These targets support board with firmware that does not'
   echo '  support passing a device tree directly. Replace <dt> with the'

arch/microblaze/boot/Makefile

@@ -3,38 +3,33 @@
 # arch/microblaze/boot/Makefile
 #
 
-targets := linux.bin linux.bin.gz linux.bin.ub simpleImage.%
+targets := linux.bin linux.bin.gz linux.bin.ub simpleImage.*
 
 OBJCOPYFLAGS := -R .note -R .comment -R .note.gnu.build-id -O binary
 
 $(obj)/linux.bin: vmlinux FORCE
 	$(call if_changed,objcopy)
-	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
 
 $(obj)/linux.bin.ub: $(obj)/linux.bin FORCE
 	$(call if_changed,uimage)
-	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
 
 $(obj)/linux.bin.gz: $(obj)/linux.bin FORCE
 	$(call if_changed,gzip)
-	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
-
-quiet_cmd_cp = CP      $< $@$2
-	cmd_cp = cat $< >$@$2 || (rm -f $@ && echo false)
 
 quiet_cmd_strip = STRIP   $< $@$2
 	cmd_strip = $(STRIP) -K microblaze_start -K _end -K __log_buf \
 				-K _fdt_start $< -o $@$2
 
 UIMAGE_LOADADDR = $(CONFIG_KERNEL_BASE_ADDR)
-UIMAGE_IN = $@
-UIMAGE_OUT = $@.ub
 
-$(obj)/simpleImage.%: vmlinux FORCE
-	$(call if_changed,cp,.unstrip)
+$(obj)/simpleImage.$(DTB): vmlinux FORCE
 	$(call if_changed,objcopy)
+
+$(obj)/simpleImage.$(DTB).ub: $(obj)/simpleImage.$(DTB) FORCE
 	$(call if_changed,uimage)
-	$(call if_changed,strip,.strip)
-	@echo 'Kernel: $(UIMAGE_OUT) is ready' ' (#'`cat .version`')'
 
-clean-files += simpleImage.*.unstrip linux.bin.ub
+$(obj)/simpleImage.$(DTB).unstrip: vmlinux FORCE
+	$(call if_changed,shipped)
+
+$(obj)/simpleImage.$(DTB).strip: vmlinux FORCE
+	$(call if_changed,strip)

arch/microblaze/boot/dts/Makefile

@@ -12,12 +12,9 @@ $(obj)/linked_dtb.o: $(obj)/system.dtb
 # Generate system.dtb from $(DTB).dtb
 ifneq ($(DTB),system)
 $(obj)/system.dtb: $(obj)/$(DTB).dtb
-	$(call if_changed,cp)
+	$(call if_changed,shipped)
 endif
 endif
 
-quiet_cmd_cp = CP      $< $@$2
-	cmd_cp = cat $< >$@$2 || (rm -f $@ && echo false)
-
 # Rule to build device tree blobs
 DTC_FLAGS := -p 1024

arch/microblaze/include/asm/Kbuild

+generated-y += syscall_table.h
 generic-y += barrier.h
 generic-y += bitops.h
 generic-y += bug.h

arch/microblaze/include/asm/pgtable.h

@@ -200,7 +200,7 @@ static inline pte_t pte_mkspecial(pte_t pte)	{ return pte; }
  * is cleared in the TLB miss handler before the TLB entry is loaded.
  * - All other bits of the PTE are loaded into TLBLO without
  *  * modification, leaving us only the bits 20, 21, 24, 25, 26, 30 for
- * software PTE bits.  We actually use use bits 21, 24, 25, and
+ * software PTE bits.  We actually use bits 21, 24, 25, and
  * 30 respectively for the software bits: ACCESSED, DIRTY, RW, and
  * PRESENT.
  */

arch/microblaze/include/asm/unistd.h

@@ -38,6 +38,4 @@
 
 #endif /* __ASSEMBLY__ */
 
-#define __NR_syscalls         401
-
 #endif /* _ASM_MICROBLAZE_UNISTD_H */

arch/microblaze/include/uapi/asm/Kbuild

 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generated-y += unistd_32.h
 generic-y += bitsperlong.h
 generic-y += bpf_perf_event.h
 generic-y += errno.h

arch/microblaze/kernel/syscalls/Makefile

+# 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 := $(srctree)/$(src)/syscall.tbl
+syshdr := $(srctree)/$(src)/syscallhdr.sh
+systbl := $(srctree)/$(src)/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))'
+
+$(uapi)/unistd_32.h: $(syscall) $(syshdr)
+	$(call if_changed,syshdr)
+
+$(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))
+	@:

arch/microblaze/kernel/syscalls/syscallhdr.sh

+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+in="$1"
+out="$2"
+my_abis=`echo "($3)" | tr ',' '|'`
+prefix="$4"
+offset="$5"
+
+fileguard=_UAPI_ASM_MICROBLAZE_`basename "$out" | sed \
+	-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \
+	-e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g'`
+grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (
+	printf "#ifndef %s\n" "${fileguard}"
+	printf "#define %s\n" "${fileguard}"
+	printf "\n"
+
+	nxt=0
+	while read nr abi name entry ; do
+		if [ -z "$offset" ]; then
+			printf "#define __NR_%s%s\t%s\n" \
+				"${prefix}" "${name}" "${nr}"
+		else
+			printf "#define __NR_%s%s\t(%s + %s)\n" \
+				"${prefix}" "${name}" "${offset}" "${nr}"
+		fi
+		nxt=$((nr+1))
+	done
+
+	printf "\n"
+	printf "#ifdef __KERNEL__\n"
+	printf "#define __NR_syscalls\t%s\n" "${nxt}"
+	printf "#endif\n"
+	printf "\n"
+	printf "#endif /* %s */" "${fileguard}"
+) > "$out"

arch/microblaze/kernel/syscalls/syscalltbl.sh

+#!/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 ; do
+		emit $((nxt+offset)) $((nr+offset)) $entry
+		nxt=$((nr+1))
+	done
+) > "$out"