[PATCH v3 32/32] Mini-OS: hide all symbols not exported via EXPORT_SYMBOLS()

[Juergen Gross <jgross@xxxxxxxx>]

When doing the final linking of the Mini-OS kernel only keep the
symbols visible which have been marked via EXPORT_SYMBOL().

Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
V3:
- new patch
---
 Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Makefile b/Makefile
index 588496cb..456aed0b 100644
--- a/Makefile
+++ b/Makefile
@@ -167,6 +167,7 @@ $(OBJ_DIR)/arch/x86/minios-x86%.lds:  
arch/x86/minios-x86.lds.S
 $(OBJ_DIR)/$(TARGET)-kern.o: $(OBJS) arch_lib 
$(OBJ_DIR)/$(TARGET_ARCH_DIR)/minios-$(MINIOS_TARGET_ARCH).lds
        $(LD) -r $(LDFLAGS) $(HEAD_OBJ) $(OBJS) $(LDARCHLIB) -o $@
        $(OBJCOPY) --dump-section .export_symbol=$(OBJ_DIR)/syms $@
+       $(OBJCOPY) -w -G $(GLOBAL_PREFIX)* 
--keep-global-symbols=$(OBJ_DIR)/syms --remove-section=.export_symbol $@ $@
 
 $(OBJ_DIR)/$(TARGET): $(OBJ_DIR)/$(TARGET)-kern.o $(APP_O)
        $(LD) -r $(LDFLAGS) $(OBJ_DIR)/$(TARGET)-kern.o $(APP_O) $(LDLIBS) -o 
$@.o
-- 
2.35.3