star-buffer

commit a07c0bee37d14bd33c874ff811385d6827474ca7
parent 515dcd0e8a9d4ae67dc77df67a953b6817ef549a
Author: Vincent Forest <vincent.forest@meso-star.com>
Date:   Fri, 27 Oct 2023 16:50:28 +0200

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
@@ -42,10 +42,14 @@ $(DEP) $(OBJ): config.mk
 $(LIBNAME_SHARED): $(OBJ)
 	$(CC) $(CFLAGS) $(RSYS_CFLAGS) -o $@ $(OBJ) $(LDFLAGS) $(SOFLAGS) $(RSYS_LIBS)
 
-$(LIBNAME_STATIC): $(OBJ)
+$(LIBNAME_STATIC): libsbuf.o
 	$(AR) -rc $@ $?
 	$(RANLIB) $@
 
+libsbuf.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
@@ -96,7 +100,8 @@ uninstall:
 all: build_library build_tests
 
 clean: clean_test
-	rm -f $(OBJ) $(TEST_OBJ) $(LIBNAME) .config .test sbuf.pc sbuf-local.pc
+	rm -f $(OBJ) $(TEST_OBJ) $(LIBNAME)
+	rm -f .config .test libsbuf.o sbuf.pc sbuf-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))