rnsl

commit fa57a9f9463e3bd17c96410ba64a286e641781f0
parent faa41c6c93190368cdb82ed064ed99c4140bfec0
Author: Vincent Forest <vincent.forest@meso-star.com>
Date:   Tue, 31 Oct 2023 11:32:34 +0100

Partially link static library object files

Make hidden symbols local to the relocatable object to avoid conflicts
with internal symbols in another static library. In release mode, delete
all symbols not required for relocation processing, but keep them in
debug mode.

Diffstat:
M
Makefile
 | 
9
+++++++--
M
config.mk
 | 
6
++++++

2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/Makefile b/Makefile
@@ -49,10 +49,14 @@ $(DEP) $(OBJ): config.mk
 $(LIBNAME_SHARED): $(OBJ)
 	$(CC) $(CFLAGS) $(RSYS_CFLAGS) -o $@ $(OBJ) $(LDFLAGS) $(SOFLAGS) $(RSYS_LIBS)
 
-$(LIBNAME_STATIC): $(OBJ)
+$(LIBNAME_STATIC): librnsl.o
 	$(AR) -rc $@ $?
 	$(RANLIB) $@
 
+librnsl.o: $(OBJ)
+	$(LD) -r $(OBJ) -o $@
+	$(OBJCOPY) $(OCPFLAGS) $@
+
 .config: config.mk
 	@if ! $(PKG_CONFIG) --atleast-version $(RSYS_VERSION) rsys; then \
 	  echo "rsys $(RSYS_VERSION) not found" >&2; exit 1; fi
@@ -103,7 +107,8 @@ uninstall:
 all: build_library build_tests
 
 clean: clean_test
-	rm -f $(OBJ) $(TEST_OBJ) $(LIBNAME) .config .test rnsl.pc rnsl-local.pc
+	rm -f $(OBJ) $(TEST_OBJ) $(LIBNAME)
+	rm -f .config .test librnsl.o rnsl.pc rnsl-local.pc
 
 distclean: clean
 	rm -f $(DEP) $(TEST_DEP)
diff --git a/config.mk b/config.mk
@@ -12,6 +12,8 @@ BUILD_TYPE = RELEASE
 ################################################################################
 AR = ar
 CC = cc
+LD = ld
+OBJCOPY = objcopy
 PKG_CONFIG = pkg-config
 RANLIB = ranlib
 
@@ -58,3 +60,7 @@ SOFLAGS = -shared -Wl,--no-undefined
 LDFLAGS_DEBUG =
 LDFLAGS_RELEASE = -s
 LDFLAGS = $(LDFLAGS_$(BUILD_TYPE))
+
+OCPFLAGS_DEBUG = --localize-hidden
+OCPFLAGS_RELEASE = --localize-hidden --strip-unneeded
+OCPFLAGS = $(OCPFLAGS_$(BUILD_TYPE))