linux-kernel - [PATCH] ARM: syscalls: use pattern rules to generate syscall headers

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Date:   Fri, 28 May 2021 13:05:42 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     patches@....linux.org.uk
Cc:     linux-kernel@...r.kernel.org,
        Masahiro Yamada <masahiroy@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] ARM: syscalls: use pattern rules to generate syscall headers

Use pattern rules to unify similar build rules between OABI and EABI.

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

KernelVersion: v5.13-rc1

 arch/arm/tools/Makefile | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/arch/arm/tools/Makefile b/arch/arm/tools/Makefile
index 3f254456a830..4a5c50f67ced 100644
--- a/arch/arm/tools/Makefile
+++ b/arch/arm/tools/Makefile
@@ -39,30 +39,20 @@ $(kapi)/mach-types.h: $(src)/gen-mach-types $(src)/mach-types FORCE
 	$(call if_changed,gen_mach)
 
 quiet_cmd_syshdr = SYSHDR  $@
-      cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --abis $(abis) \
+      cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --abis common,$* \
 		   --offset __NR_SYSCALL_BASE $< $@
 
 quiet_cmd_systbl = SYSTBL  $@
-      cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis $(abis) $< $@
+      cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis common,$* $< $@
 
 quiet_cmd_sysnr  = SYSNR   $@
       cmd_sysnr  = $(CONFIG_SHELL) $(sysnr) $< $@
 
-$(uapi)/unistd-oabi.h: abis := common,oabi
-$(uapi)/unistd-oabi.h: $(syscall) $(syshdr) FORCE
-	$(call if_changed,syshdr)
-
-$(uapi)/unistd-eabi.h: abis := common,eabi
-$(uapi)/unistd-eabi.h: $(syscall) $(syshdr) FORCE
+$(uapi)/unistd-%.h: $(syscall) $(syshdr) FORCE
 	$(call if_changed,syshdr)
 
 $(kapi)/unistd-nr.h: $(syscall) $(sysnr) FORCE
 	$(call if_changed,sysnr)
 
-$(gen)/calls-oabi.S: abis := common,oabi
-$(gen)/calls-oabi.S: $(syscall) $(systbl) FORCE
-	$(call if_changed,systbl)
-
-$(gen)/calls-eabi.S: abis := common,eabi
-$(gen)/calls-eabi.S: $(syscall) $(systbl) FORCE
+$(gen)/calls-%.S: $(syscall) $(systbl) FORCE
 	$(call if_changed,systbl)
-- 
2.27.0