Use the C pre-processor for the linker script generation. For example,
this enables us the use of constants in the "linker scripts" `*.lds.S`.
Signed-off-by: Marc Hartmayer <mhartmay@xxxxxxxxxxxxx>
---
.gitignore | 1 +
s390x/Makefile | 6 ++++--
s390x/{flat.lds => flat.lds.S} | 0
s390x/snippets/asm/{flat.lds => flat.lds.S} | 0
s390x/snippets/c/{flat.lds => flat.lds.S} | 0
5 files changed, 5 insertions(+), 2 deletions(-)
rename s390x/{flat.lds => flat.lds.S} (100%)
rename s390x/snippets/asm/{flat.lds => flat.lds.S} (100%)
rename s390x/snippets/c/{flat.lds => flat.lds.S} (100%)
diff --git a/.gitignore b/.gitignore
index 601822d67325..29f352c5ceb6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,3 +31,4 @@ cscope.*
/s390x/comm.key
/s390x/snippets/*/*.hdr
/s390x/snippets/*/*.*obj
+/s390x/**/*.lds
diff --git a/s390x/Makefile b/s390x/Makefile
index 8719f0c837cf..44ccca8102d6 100644
--- a/s390x/Makefile
+++ b/s390x/Makefile
@@ -76,7 +76,7 @@ CFLAGS += -fno-delete-null-pointer-checks
LDFLAGS += -nostdlib -Wl,--build-id=none
# We want to keep intermediate files
-.PRECIOUS: %.o
+.PRECIOUS: %.o %.lds
asm-offsets = lib/$(ARCH)/asm-offsets.h
include $(SRCDIR)/scripts/asm-offsets.mak
@@ -159,6 +159,8 @@ $(SNIPPET_DIR)/c/%.gbin: $(SNIPPET_DIR)/c/%.o $(snippet_lib) $(FLATLIBS) $(SNIPP
%.hdr.obj: %.hdr
$(OBJCOPY) -I binary -O elf64-s390 -B "s390:64-bit" $< $@
+%.lds: %.lds.S
+ $(CPP) $(autodepend-flags) $(CPPFLAGS) -P -C -o $@ $<
.SECONDEXPANSION:
%.elf: $(FLATLIBS) $(asmlib) $(SRCDIR)/s390x/flat.lds $$(snippets-obj) $$(snippet-hdr-obj) %.o
@@ -211,7 +213,7 @@ $(snippet_asmlib): $$(patsubst %.o,%.S,$$@) $(asm-offsets)
arch_clean: asm_offsets_clean
- $(RM) $(TEST_DIR)/*.{o,elf,bin} $(SNIPPET_DIR)/*/*.{o,elf,*bin,*obj,hdr} $(SNIPPET_DIR)/asm/.*.d $(TEST_DIR)/.*.d lib/s390x/.*.d $(comm-key)
+ $(RM) $(TEST_DIR)/*.{o,elf,bin,lds} $(SNIPPET_DIR)/*/*.{o,elf,*bin,*obj,hdr,lds} $(SNIPPET_DIR)/asm/.*.d $(TEST_DIR)/.*.d lib/s390x/.*.d $(comm-key)
generated-files = $(asm-offsets)
$(tests:.elf=.o) $(asmlib) $(cflatobjs): $(generated-files)
diff --git a/s390x/flat.lds b/s390x/flat.lds.S
similarity index 100%
rename from s390x/flat.lds
rename to s390x/flat.lds.S
diff --git a/s390x/snippets/asm/flat.lds b/s390x/snippets/asm/flat.lds.S
similarity index 100%
rename from s390x/snippets/asm/flat.lds
rename to s390x/snippets/asm/flat.lds.S
diff --git a/s390x/snippets/c/flat.lds b/s390x/snippets/c/flat.lds.S
similarity index 100%
rename from s390x/snippets/c/flat.lds
rename to s390x/snippets/c/flat.lds.S
--
2.34.1
