arm, powerpc, riscv, build .aux.o targets with implicit pattern rules in dependency chains that cause them to be made as intermediate files, which get removed when make finishes. This results in unnecessary partial rebuilds. If make is run again, this time the .aux.o targets are not intermediate, possibly due to being made via different dependencies. Adding .aux.o files to .PRECIOUS prevents them being removed and solves the rebuild problem. s390x does not have the problem because .SECONDARY prevents dependancies from being built as intermediate. However the same change is made for s390x, for consistency. Suggested-by: Marc Hartmayer <mhartmay@xxxxxxxxxxxxx> Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx> --- arm/Makefile.common | 2 +- powerpc/Makefile.common | 2 +- riscv/Makefile | 2 +- s390x/Makefile | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arm/Makefile.common b/arm/Makefile.common index f828dbe01..0b26a92a6 100644 --- a/arm/Makefile.common +++ b/arm/Makefile.common @@ -31,7 +31,7 @@ CFLAGS += -O2 CFLAGS += -I $(SRCDIR)/lib -I $(SRCDIR)/lib/libfdt -I lib # We want to keep intermediate files -.PRECIOUS: %.elf %.o +.PRECIOUS: %.elf %.o %.aux.o asm-offsets = lib/$(ARCH)/asm-offsets.h include $(SRCDIR)/scripts/asm-offsets.mak diff --git a/powerpc/Makefile.common b/powerpc/Makefile.common index b98f71c2f..16f14577e 100644 --- a/powerpc/Makefile.common +++ b/powerpc/Makefile.common @@ -30,7 +30,7 @@ CFLAGS += -I $(SRCDIR)/lib -I $(SRCDIR)/lib/libfdt -I lib CFLAGS += -Wa,-mregnames # We want to keep intermediate files -.PRECIOUS: %.o +.PRECIOUS: %.o %.aux.o asm-offsets = lib/$(ARCH)/asm-offsets.h include $(SRCDIR)/scripts/asm-offsets.mak diff --git a/riscv/Makefile b/riscv/Makefile index 919a3ebb5..7207ff988 100644 --- a/riscv/Makefile +++ b/riscv/Makefile @@ -53,7 +53,7 @@ AUXFLAGS ?= 0x0 KEEP_FRAME_POINTER := y # We want to keep intermediate files -.PRECIOUS: %.elf %.o +.PRECIOUS: %.elf %.o %.aux.o define arch_elf_check = $(if $(shell ! $(READELF) -rW $(1) >&/dev/null && echo "nok"), diff --git a/s390x/Makefile b/s390x/Makefile index 23342bd64..d436c6e9a 100644 --- a/s390x/Makefile +++ b/s390x/Makefile @@ -85,7 +85,7 @@ CFLAGS += -fno-delete-null-pointer-checks LDFLAGS += -Wl,--build-id=none # We want to keep intermediate files -.PRECIOUS: %.o %.lds +.PRECIOUS: %.o %.aux.o %.lds asm-offsets = lib/$(ARCH)/asm-offsets.h include $(SRCDIR)/scripts/asm-offsets.mak -- 2.45.1
