ensure libosmocore logging is properly disabled for builds

Change-Id: I169a059d8daff0a3993318a4ea3ab7adcb05fee3
---
M sysmoOCTSIM/gcc/Makefile
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/sysmoOCTSIM/gcc/Makefile b/sysmoOCTSIM/gcc/Makefile
index 0f2a909..461b313 100644
--- a/sysmoOCTSIM/gcc/Makefile
+++ b/sysmoOCTSIM/gcc/Makefile
@@ -164,7 +164,7 @@
 vpath %.S ../
 
 # All Target
-all: $(SUB_DIRS) elf bin ihex eep lss
+all: $(SUB_DIRS) elf bin ihex eep lss check-no-logging
 
 elf: $(OUTPUT_FILE_NAME).elf sysmoOCTSIM.elf
 bin: $(OUTPUT_FILE_NAME).bin sysmoOCTSIM.bin
@@ -246,5 +246,12 @@
         $(OUTPUT_FILE_NAME).lss $(OUTPUT_FILE_NAME).eep $(OUTPUT_FILE_NAME).map \
         $(OUTPUT_FILE_NAME).srec
 
+check-no-logging: $(OUTPUT_FILE_PATH)
+	@if $(NM) $< | grep -q ' T logp2'; then \
+		echo "FAIL: logging symbols linked into release ELF (libosmocore --disable-log-macros missing/broken?)"; \
+		$(NM) $< | grep ' T \(logp2\|osmo_vlogp\|log_check_level\|logp_stub\)'; \
+		exit 1; \
+	fi
+
 mrproper: clean
 	rm -f *.o *.d *.a *.elf *.bin *.ihex *.eep *.lss *.map *.srec

