From e0f4d9216eac4e8848e1b405748196aed43e03e0 Mon Sep 17 00:00:00 2001
From: Eric Wild <ewild@sysmocom.de>
Date: Fri, 3 Apr 2020 18:28:31 +0200
Subject: [PATCH] firmware: allow verbose builds

make V=1 can be used to echo all compilation commands, which is useful
because it allows IDEs to parse the gcc output in oder to properly index
the source files using the actual defines passed to the compiler.

Change-Id: I25c41dff89302a73ddd2a4aaba7cb14912fac3b8
---
 firmware/Makefile | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/firmware/Makefile b/firmware/Makefile
index 373cfdfb..b9de5573 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -33,6 +33,14 @@ GIT_VERSION=$(shell $(TOP)/git-version-gen $(TOP)/.tarvers)
 #        User-modifiable options
 #-------------------------------------------------------------------------------
 
+# verbosity
+V ?= 0
+ifneq ("$(V)","0")
+SILENT :=
+else
+SILENT := @
+endif
+
 # Chip & board used for compilation
 # (can be overriden by adding CHIP=chip and BOARD=board to the command-line)
 CHIP  ?= sam3s4
@@ -210,22 +218,22 @@ C_OBJECTS_$(1) = $(addprefix $(OBJ)/$(1)_, $(C_OBJECTS))
 ASM_OBJECTS_$(1) = $(addprefix $(OBJ)/$(1)_, $(ASM_OBJECTS))
 
 $(1): $$(ASM_OBJECTS_$(1)) $$(C_OBJECTS_$(1))
-	@$(CC) $(LDFLAGS) $(LD_OPTIONAL) -T"libboard/common/resources/$(CHIP)/$$@.ld" -Wl,-Map,$(OUTPUT)-$$@.map -o $(OUTPUT)-$$@.elf $$^ $(LIBS)
+	$(SILENT)$(CC) $(LDFLAGS) $(LD_OPTIONAL) -T"libboard/common/resources/$(CHIP)/$$@.ld" -Wl,-Map,$(OUTPUT)-$$@.map -o $(OUTPUT)-$$@.elf $$^ $(LIBS)
 	cp $(OUTPUT)-$$@.elf $(OUTPUT)-$$@-$(GIT_VERSION).elf
 	cp $(OUTPUT)-$$@.elf $(OUTPUT)-$$@-latest.elf
-	@$(NM) $(OUTPUT)-$$@.elf >$(OUTPUT)-$$@.elf.txt
-	@$(OBJCOPY) -O binary $(OUTPUT)-$$@.elf $(OUTPUT)-$$@.bin
+	$(SILENT)$(NM) $(OUTPUT)-$$@.elf >$(OUTPUT)-$$@.elf.txt
+	$(SILENT)$(OBJCOPY) -O binary $(OUTPUT)-$$@.elf $(OUTPUT)-$$@.bin
 	cp $(OUTPUT)-$$@.bin $(OUTPUT)-$$@-$(GIT_VERSION).bin
 	cp $(OUTPUT)-$$@.bin $(OUTPUT)-$$@-latest.bin
-	@$(SIZE) $$^ $(OUTPUT)-$$@.elf
+	$(SILENT)$(SIZE) $$^ $(OUTPUT)-$$@.elf
 
 $$(C_OBJECTS_$(1)): $(OBJ)/$(1)_%.o: %.c Makefile $(OBJ) $(BIN)
 	@echo [COMPILING $$<]
-	@$(CC) $(CFLAGS) -DENVIRONMENT_$(1) -DENVIRONMENT=\"$(1)\" -Wa,-ahlms=$(BIN)/$$*.lst -c -o $$@ $$<
+	$(SILENT)$(CC) $(CFLAGS) -DENVIRONMENT_$(1) -DENVIRONMENT=\"$(1)\" -Wa,-ahlms=$(BIN)/$$*.lst -c -o $$@ $$<
 
 $$(ASM_OBJECTS_$(1)): $(OBJ)/$(1)_%.o: %.S Makefile $(OBJ) $(BIN)
 	@echo [ASSEMBLING $$@]
-	@$(CC) $(ASFLAGS) -DENVIRONMENT_$(1) -DENVIRONMENT=\"$(1)\" -c -o $$@ $$<
+	$(SILENT)@$(CC) $(ASFLAGS) -DENVIRONMENT_$(1) -DENVIRONMENT=\"$(1)\" -c -o $$@ $$<
 
 debug_$(1): $(1)
 	$(GDB) -x "$(BOARD_LIB)/resources/gcc/$(BOARD)_$(1).gdb" -ex "reset" -readnow -se $(OUTPUT)-$(1).elf