checksyscalls: move instance functionality into generic code

On MIPS the checksyscalls.sh script may be executed multiple times.
Currently these multiple executions are executed on each build as kbuild
see that the commands have changed each time.

Use a dedicated stamp file for each different invocation to avoid the
spurious executions.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Link: https://patch.msgid.link/20260402-kbuild-missing-syscalls-v3-3-6641be1de2db@weissschuh.net
Signed-off-by: Nicolas Schier <nsc@kernel.org>

diff --git a/Kbuild b/Kbuild
index 515cc6a27477fe44b34c5d2f5af3fe3a131a4a80..a6a0192dea08a1d66949d1bcb84c091010e5102f 100644 (file)
--- a/Kbuild
+++ b/Kbuild
@@ -47,11 +47,11 @@ $(rq-offsets-file): kernel/sched/rq-offsets.s FORCE
 
 # Check for missing system calls
 
-missing-syscalls-file := .tmp_missing-syscalls
+missing-syscalls-file := .tmp_missing-syscalls$(missing_syscalls_instance)
 
 targets += $(missing-syscalls-file)
 
-quiet_cmd_syscalls = CALL    $<
+quiet_cmd_syscalls = CALL    $< $(addprefix for ,$(missing_syscalls_instance))
       cmd_syscalls = DEPFILE=$(depfile) $(CONFIG_SHELL) $< $(CC) $(c_flags) $(missing_syscalls_flags); touch $@
 
 $(missing-syscalls-file): scripts/checksyscalls.sh $(rq-offsets-file) FORCE

diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index d9057e29bc62b57022440593ea62045245a1683f..6705fa5d9211c4ee3850b5b9ebd130f8ceab88dc 100644 (file)
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -421,12 +421,10 @@ CLEAN_FILES += vmlinux.32 vmlinux.64
 
 archprepare:
 ifdef CONFIG_MIPS32_N32
-       @$(kecho) '  Checking missing-syscalls for N32'
-       $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
+       $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_instance="N32" missing_syscalls_flags="-mabi=n32"
 endif
 ifdef CONFIG_MIPS32_O32
-       @$(kecho) '  Checking missing-syscalls for O32'
-       $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
+       $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_instance="O32" missing_syscalls_flags="-mabi=32"
 endif
 
 install: