Re: [kvm-unit-tests PATCH v2 1/9] (arm|powerpc|s390x): Makefile: Fix .aux.o generation
From: Andrew Jones <hidden>
Date: 2024-02-02 09:41:24
Also in:
kvm, kvmarm, linux-s390
On Fri, Feb 02, 2024 at 04:57:32PM +1000, Nicholas Piggin wrote:
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Using all prerequisites for the source file results in the build dying on the second time around with: gcc: fatal error: cannot specify ‘-o’ with ‘-c’, ‘-S’ or ‘-E’ with multiple files This is due to auxinfo.h becoming a prerequisite after the first build recorded the dependency. Use the first prerequisite for this recipe. Fixes: f2372f2d49135 ("(arm|powerpc|s390x): Makefile: add `%.aux.o` target") Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- arm/Makefile.common | 2 +- powerpc/Makefile.common | 2 +- s390x/Makefile | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-)diff --git a/arm/Makefile.common b/arm/Makefile.common index 54cb4a63..c2ee568c 100644 --- a/arm/Makefile.common +++ b/arm/Makefile.common@@ -71,7 +71,7 @@ FLATLIBS = $(libcflat) $(LIBFDT_archive) $(libeabi) ifeq ($(CONFIG_EFI),y) %.aux.o: $(SRCDIR)/lib/auxinfo.c - $(CC) $(CFLAGS) -c -o $@ $^ \ + $(CC) $(CFLAGS) -c -o $@ $< \ -DPROGNAME=\"$(@:.aux.o=.efi)\" -DAUXFLAGS=$(AUXFLAGS)
There are two instances of the %.aux.o target in arm/Makefile.common. We need to fix both. We can actually pull the target out of the two arms of the CONFIG_EFI if-else, though, by changing the .efi/.flat to .$(exe). Thanks, drew
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%.so: EFI_LDFLAGS += -defsym=EFI_SUBSYSTEM=0xa --no-undefineddiff --git a/powerpc/Makefile.common b/powerpc/Makefile.common index 483ff648..eb88398d 100644 --- a/powerpc/Makefile.common +++ b/powerpc/Makefile.common@@ -48,7 +48,7 @@ cflatobjs += lib/powerpc/smp.o OBJDIRS += lib/powerpc %.aux.o: $(SRCDIR)/lib/auxinfo.c - $(CC) $(CFLAGS) -c -o $@ $^ -DPROGNAME=\"$(@:.aux.o=.elf)\" + $(CC) $(CFLAGS) -c -o $@ $< -DPROGNAME=\"$(@:.aux.o=.elf)\" FLATLIBS = $(libcflat) $(LIBFDT_archive) %.elf: CFLAGS += $(arch_CFLAGS)diff --git a/s390x/Makefile b/s390x/Makefile index e64521e0..b72f7578 100644 --- a/s390x/Makefile +++ b/s390x/Makefile@@ -177,7 +177,7 @@ lds-autodepend-flags = -MMD -MF $(dir $*).$(notdir $*).d -MT $@ $(CPP) $(lds-autodepend-flags) $(CPPFLAGS) -P -C -o $@ $< %.aux.o: $(SRCDIR)/lib/auxinfo.c - $(CC) $(CFLAGS) -c -o $@ $^ -DPROGNAME=\"$(@:.aux.o=.elf)\" + $(CC) $(CFLAGS) -c -o $@ $< -DPROGNAME=\"$(@:.aux.o=.elf)\" .SECONDEXPANSION: %.elf: $(FLATLIBS) $(asmlib) $(SRCDIR)/s390x/flat.lds $$(snippets-obj) $$(snippet-hdr-obj) %.o %.aux.o-- 2.42.0