[U-Boot] [PATCH] [PoC] basic kbuild output support

25 Jun 2011

I know at first blush this isn't going to be supported, but it's just
a PoC that things are (mostly) possible without much effort.
Signed-off-by: Mike Frysinger vapier@gentoo.org
---
 Makefile                     |   54 ++++++++++++++++++++++-------------------
 common/kgdb.c                |   52 +++++++++++++++++++++------------------
 config.mk                    |   30 ++++++++++++++++++----
 examples/api/Makefile        |   11 +++++---
 examples/standalone/Makefile |    9 ++++--
 tools/Makefile               |   48 +++++++++++++++++++++----------------
 6 files changed, 121 insertions(+), 83 deletions(-)

diff --git a/Makefile b/Makefile
index 43a9145..407bf22 100644
--- a/Makefile
+++ b/Makefile
@@ -53,18 +53,12 @@ SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
export	HOSTARCH HOSTOS SHELL
+MAKEFLAGS += --no-print-directory
+
 # Deal with colliding definitions from tcsh etc.
 VENDOR=
#########################################################################
-# Allow for silent builds
-ifeq (,$(findstring s,$(MAKEFLAGS)))
-XECHO = echo
-else
-XECHO = :
-endif
-
-#########################################################################
 #
 # U-boot build supports producing a object files to the separate external
 # directory. Two use cases are supported:
@@ -327,25 +321,31 @@ ALL += $(obj)u-boot.srec $(obj)u-boot.bin $(obj)System.map $(U_BOOT_NAND) $(U_BO
 all:		$(ALL)
$(obj)u-boot.hex:	$(obj)u-boot
-		$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@
+		@$(XECHO) "  OBJCOPY $@"
+		$(Q)$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@
$(obj)u-boot.srec:	$(obj)u-boot
-		$(OBJCOPY) -O srec $< $@
+		@$(XECHO) "  OBJCOPY $@"
+		$(Q)$(OBJCOPY) -O srec $< $@
$(obj)u-boot.bin:	$(obj)u-boot
-		$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
+		@$(XECHO) "  OBJCOPY $@"
+		$(Q)$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
    	$(BOARD_SIZE_CHECK)
$(obj)u-boot.ldr:	$(obj)u-boot
-		$(CREATE_LDR_ENV)
-		$(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
+		@$(XECHO) "  LDR     $@"
+		$(Q)$(CREATE_LDR_ENV)
+		$(Q)$(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
    	$(BOARD_SIZE_CHECK)
$(obj)u-boot.ldr.hex:	$(obj)u-boot.ldr
-		$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary
+		@$(XECHO) "  OBJCOPY $@"
+		$(Q)$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary
$(obj)u-boot.ldr.srec:	$(obj)u-boot.ldr
-		$(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
+		@$(XECHO) "  OBJCOPY $@"
+		$(Q)$(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
$(obj)u-boot.img:	$(obj)u-boot.bin
    	$(obj)tools/mkimage -A $(ARCH) -T firmware -C none \
@@ -376,29 +376,32 @@ GEN_UBOOT = \
    		-Map u-boot.map -o u-boot
 $(obj)u-boot:	depend \
    	$(SUBDIRS) $(OBJS) $(LIBBOARD) $(LIBS) $(LDSCRIPT) $(obj)u-boot.lds
-		$(GEN_UBOOT)
+		@$(XECHO) "  LD      $@"
+		$(Q)$(GEN_UBOOT)
 ifeq ($(CONFIG_KALLSYMS),y)
-		smap=`$(call SYSTEM_MAP,u-boot) | \
+		@$(XECHO) "  SYMMAP  $@"
+		$(Q)smap=`$(call SYSTEM_MAP,u-boot) | \
    		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\000"}'` ; \
    	$(CC) $(CFLAGS) -DSYSTEM_MAP=""$${smap}"" \
    		-c common/system_map.c -o $(obj)common/system_map.o
-		$(GEN_UBOOT) $(obj)common/system_map.o
+		@$(XECHO) "  LD      $@"
+		$(Q)$(GEN_UBOOT) $(obj)common/system_map.o
 endif
$(OBJS):	depend
-		$(MAKE) -C $(CPUDIR) $(if $(REMOTE_BUILD),$@,$(notdir $@))
+		$(Q)$(MAKE) -C $(CPUDIR) $(if $(REMOTE_BUILD),$@,$(notdir $@))
$(LIBS):	depend $(SUBDIRS)
-		$(MAKE) -C $(dir $(subst $(obj),,$@))
+		$(Q)$(MAKE) -C $(dir $(subst $(obj),,$@))
$(LIBBOARD):	depend $(LIBS)
-		$(MAKE) -C $(dir $(subst $(obj),,$@))
+		$(Q)$(MAKE) -C $(dir $(subst $(obj),,$@))
$(SUBDIRS):	depend
-		$(MAKE) -C $@ all
+		$(Q)$(MAKE) -C $@ all
$(LDSCRIPT):	depend
-		$(MAKE) -C $(dir $@) $(notdir $@)
+		$(Q)$(MAKE) -C $(dir $@) $(notdir $@)
# The linker script lacks proper dependency information atm, so force it
 # to be regenerated on every link.  This shouldn't be to big of an issue
@@ -407,7 +410,8 @@ $(LDSCRIPT):	depend
 # board config file ...
 .PHONY: $(obj)u-boot.lds
 $(obj)u-boot.lds: $(LDSCRIPT)
-		$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+		@$(XECHO) "  CPP     $@"
+		$(Q)$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
$(NAND_SPL):	$(TIMESTAMP_FILE) $(VERSION_FILE) depend
    	$(MAKE) -C nand_spl/board/$(BOARDDIR) all
@@ -442,7 +446,7 @@ updater:
 depend dep:	$(TIMESTAMP_FILE) $(VERSION_FILE) \
    	$(obj)include/autoconf.mk \
    	$(obj)include/generated/generic-asm-offsets.h
-		for dir in $(SUBDIRS) $(CPUDIR) $(dir $(LDSCRIPT)) ; do \
+		$(Q)for dir in $(SUBDIRS) $(CPUDIR) $(dir $(LDSCRIPT)) ; do \
    		$(MAKE) -C $$dir _depend ; done
TAG_SUBDIRS = $(SUBDIRS)
diff --git a/common/kgdb.c b/common/kgdb.c
index 8a621ad..5bfd58d 100644
--- a/common/kgdb.c
+++ b/common/kgdb.c
@@ -87,13 +87,13 @@
  *
  ****************************************************************************/
+#define DEBUG 1
+
 #include <common.h>
#include <kgdb.h>
 #include <command.h>
-#undef KGDB_DEBUG
-
 /*
  * BUFMAX defines the maximum number of characters in inbound/outbound buffers
  */
@@ -107,7 +107,8 @@ static int kgdb_active = 0, first_entry = 1;
 static struct pt_regs entry_regs;
 static long error_jmp_buf[BUFMAX/2];
 static int longjmp_on_fault = 0;
-#ifdef KGDB_DEBUG
+
+#ifdef DEBUG
 static int kdebug = 1;
 #endif
@@ -230,16 +231,13 @@ getpacket(char *buffer)
    int count;
    unsigned char ch;
+	debugX(kdebug, "waiting for $...# packet\n");
+
    do {
    	/* wait around for the start character, ignore all other
    	 * characters */
-		while ((ch = (getDebugChar() & 0x7f)) != '$') {
-#ifdef KGDB_DEBUG
-			if (kdebug)
-				putc(ch);
-#endif
+		while ((ch = (getDebugChar() & 0x7f)) != '$')
    		;
-		}
checksum = 0;
    	xmitcsum = -1;
@@ -287,8 +285,12 @@ static void
 putpacket(unsigned char *buffer)
 {
    unsigned char checksum;
-	int count;
+	int count, i, j;
    unsigned char ch, recv;
+	char buf[256];
+
+	i = 0;
+	debugX(kdebug, "waiting for '+' ack packet\n");
/*  $<packet info>#<checksum>. */
    do {
@@ -306,7 +308,15 @@ putpacket(unsigned char *buffer)
    	putDebugChar(hexchars[checksum >> 4]);
    	putDebugChar(hexchars[checksum & 0xf]);
    	recv = getDebugChar();
+		buf[i++] = recv;
+//		if ((recv & 0x7f) != '+')
+//			debugX(kdebug, "waiting for '+', but got %i:%c\n", recv, recv);
    } while ((recv & 0x7f) != '+');
+
+	debug("got back: ");
+	for (j = 0; j < i; ++j)
+		debug("%i:%c ", buf[j], buf[j]);
+	debug("\n");
 }
/*
@@ -378,12 +388,12 @@ handle_exception (struct pt_regs *regs)
*ptr = 0;
-#ifdef KGDB_DEBUG
-	if (kdebug)
-		printf("kgdb: remcomOutBuffer: %s\n", remcomOutBuffer);
-#endif
+	debugX(kdebug, "kgdb: remcomOutBuffer: %s\n", remcomOutBuffer);
-	putpacket((unsigned char *)&remcomOutBuffer);
+	while (serial_tstc())
+		serial_getc();
+
+//	putpacket((unsigned char *)&remcomOutBuffer);
while (1) {
    	volatile int errnum;
@@ -393,10 +403,7 @@ handle_exception (struct pt_regs *regs)
    	getpacket(remcomInBuffer);
    	ptr = &remcomInBuffer[1];
-#ifdef KGDB_DEBUG
-		if (kdebug)
-			printf("kgdb:  remcomInBuffer: %s\n", remcomInBuffer);
-#endif
+		debugX(kdebug, "kgdb:  remcomInBuffer: %s\n", remcomInBuffer);
errnum = kgdb_setjmp(error_jmp_buf);
@@ -409,7 +416,7 @@ handle_exception (struct pt_regs *regs)
    		remcomOutBuffer[3] = 0;
    		break;
-#ifdef KGDB_DEBUG
+#ifdef DEBUG
    	case 'd':
    		/* toggle debug flag */
    		kdebug ^= 1;
@@ -521,10 +528,7 @@ handle_exception (struct pt_regs *regs)
    	if (errnum != 0)
    		sprintf(remcomOutBuffer, "E%02d", errnum);
-#ifdef KGDB_DEBUG
-		if (kdebug)
-			printf("kgdb: remcomOutBuffer: %s\n", remcomOutBuffer);
-#endif
+		debugX(kdebug, "kgdb: remcomOutBuffer: %s\n", remcomOutBuffer);
/* reply to the request */
    	putpacket((unsigned char *)&remcomOutBuffer);
diff --git a/config.mk b/config.mk
index 97d2631..653d52d 100644
--- a/config.mk
+++ b/config.mk
@@ -45,6 +45,16 @@ PLATFORM_CPPFLAGS =
 PLATFORM_LDFLAGS =
#########################################################################
+# Allow for silent builds
+ifeq (,$(findstring s,$(MAKEFLAGS)))
+XECHO = echo
+Q = @
+else
+XECHO = :
+Q =
+endif
+
+#########################################################################
HOSTCFLAGS	= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
    	  $(HOSTCPPFLAGS)
@@ -253,21 +263,29 @@ BCURDIR = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%))
 ALL_AFLAGS = $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR))
 ALL_CFLAGS = $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR))
 $(obj)%.s:	%.S
-	$(CPP) $(ALL_AFLAGS) -o $@ $<
+	@$(XECHO) "  CPP     $@"
+	$(Q)$(CPP) $(ALL_AFLAGS) -o $@ $<
 $(obj)%.o:	%.S
-	$(CC)  $(ALL_AFLAGS) -o $@ $< -c
+	@$(XECHO) "  CC      $@"
+	$(Q)$(CC)  $(ALL_AFLAGS) -o $@ $< -c
 $(obj)%.o:	%.c
-	$(CC)  $(ALL_CFLAGS) -o $@ $< -c
+	@$(XECHO) "  CC      $@"
+	$(Q)$(CC)  $(ALL_CFLAGS) -o $@ $< -c
 $(obj)%.i:	%.c
-	$(CPP) $(ALL_CFLAGS) -o $@ $< -c
+	@$(XECHO) "  CPP     $@"
+	$(Q)$(CPP) $(ALL_CFLAGS) -o $@ $< -c
 $(obj)%.s:	%.c
-	$(CC)  $(ALL_CFLAGS) -o $@ $< -c -S
+	@$(XECHO) "  CC      $@"
+	$(Q)$(CC)  $(ALL_CFLAGS) -o $@ $< -c -S
#########################################################################
# If the list of objects to link is empty, just create an empty built-in.o
 cmd_link_o_target = $(if $(strip $1),\
+		      @$(XECHO) "  LD      $@"; \
    	      $(LD) $(LDFLAGS) -r -o $@ $1,\
-		      rm -f $@; $(AR) rcs $@ )
+		      @rm -f $@; \
+		      $(XECHO) "  LD      $@"; \
+		      $(AR) rcs $@)
#########################################################################
diff --git a/examples/api/Makefile b/examples/api/Makefile
index 5b5f7a6..9b3757c 100644
--- a/examples/api/Makefile
+++ b/examples/api/Makefile
@@ -71,16 +71,19 @@ all:	$(obj).depend $(OUTPUT)
 #########################################################################
$(OUTPUT):	$(OBJS)
-		$(LD) -Ttext $(LOAD_ADDR) -o $@ $^ -L$(gcclibdir) -lgcc
-		$(OBJCOPY) -O binary $@ $(OUTPUT).bin 2>/dev/null
+		@$(XECHO) "  LD      $@"
+		$(Q)$(LD) -Ttext $(LOAD_ADDR) -o $@ $^ -L$(gcclibdir) -lgcc
+		$(Q)$(OBJCOPY) -O binary $@ $(OUTPUT).bin 2>/dev/null
# Rule to build generic library C files
 $(obj)%.o: $(SRCTREE)/lib/%.c
-	$(CC) -g $(CFLAGS) -c -o $@ $<
+	@$(XECHO) "  CC      $@"
+	$(Q)$(CC) -g $(CFLAGS) -c -o $@ $<
# Rule to build architecture-specific library assembly files
 $(obj)%.o: $(SRCTREE)/arch/$(ARCH)/lib/%.S
-	$(CC) -g $(CFLAGS) -c -o $@ $<
+	@$(XECHO) "  CC      $@"
+	$(Q)$(CC) -g $(CFLAGS) -c -o $@ $<
#########################################################################
diff --git a/examples/standalone/Makefile b/examples/standalone/Makefile
index c1dfdce..6b97d00 100644
--- a/examples/standalone/Makefile
+++ b/examples/standalone/Makefile
@@ -95,17 +95,20 @@ $(LIB):	$(obj).depend $(LIBOBJS)
$(ELF):
 $(obj)%:	$(obj)%.o $(LIB)
-		$(LD) -g -Ttext $(STANDALONE_LOAD_ADDR) \
+		@$(XECHO) "  CC      $@"
+		$(Q)$(LD) -g -Ttext $(STANDALONE_LOAD_ADDR) \
    		-o $@ -e $(SYM_PREFIX)$(notdir $(<:.o=)) $< $(LIB) \
    		-L$(gcclibdir) -lgcc
$(SREC):
 $(obj)%.srec:	$(obj)%
-		$(OBJCOPY) -O srec $< $@ 2>/dev/null
+		@$(XECHO) "  OBJCOPY $@"
+		$(Q)$(OBJCOPY) -O srec $< $@ 2>/dev/null
$(BIN):
 $(obj)%.bin:	$(obj)%
-		$(OBJCOPY) -O binary $< $@ 2>/dev/null
+		@$(XECHO) "  OBJCOPY $@"
+		$(Q)$(OBJCOPY) -O binary $< $@ 2>/dev/null
#########################################################################
diff --git a/tools/Makefile b/tools/Makefile
index 97f83f8..121cc62 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -156,28 +156,37 @@ HOSTCPPFLAGS =	-idirafter $(SRCTREE)/include \
all:	$(obj).depend $(BINS) $(LOGO-y) subdirs
-$(obj)bin2header$(SFX): $(obj)bin2header.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
+cmd_host_link = \
+	@set -e; \
+	$(XECHO) "  HOSTCC  $@"; \
+	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^; \
    $(HOSTSTRIP) $@
+cmd_host_cc_noped = \
+	@set -e; \
+	$(XECHO) "  HOSTCC  $@"; \
+	$(HOSTCC) -g $(HOSTCFLAGS_NOPED) -c -o $@ $<
+cmd_host_cc = \
+	@set -e; \
+	$(XECHO) "  HOSTCC  $@"; \
+	$(HOSTCC) -g $(HOSTCFLAGS) -c -o $@ $<
+
+$(obj)bin2header$(SFX): $(obj)bin2header.o
+	$(cmd_host_link)
$(obj)bmp_logo$(SFX):	$(obj)bmp_logo.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
+	$(cmd_host_link)
$(obj)envcrc$(SFX):	$(obj)crc32.o $(obj)env_embedded.o $(obj)envcrc.o $(obj)sha1.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
+	$(cmd_host_link)
$(obj)gen_eth_addr$(SFX):	$(obj)gen_eth_addr.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
+	$(cmd_host_link)
$(obj)img2srec$(SFX):	$(obj)img2srec.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
+	$(cmd_host_link)
$(obj)inca-swap-bytes$(SFX):	$(obj)inca-swap-bytes.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
+	$(cmd_host_link)
$(obj)mkimage$(SFX):	$(obj)crc32.o \
    		$(obj)default_image.o \
@@ -190,29 +199,26 @@ $(obj)mkimage$(SFX):	$(obj)crc32.o \
    		$(obj)os_support.o \
    		$(obj)sha1.o \
    		$(LIBFDT_OBJS)
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
+	$(cmd_host_link)
$(obj)mpc86x_clk$(SFX):	$(obj)mpc86x_clk.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
+	$(cmd_host_link)
$(obj)ncb$(SFX):	$(obj)ncb.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
+	$(cmd_host_link)
$(obj)ubsha1$(SFX):	$(obj)os_support.o $(obj)sha1.o $(obj)ubsha1.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
+	$(cmd_host_link)
# Some of the tool objects need to be accessed from outside the tools directory
 $(obj)%.o: $(SRCTREE)/common/%.c
-	$(HOSTCC) -g $(HOSTCFLAGS_NOPED) -c -o $@ $<
+	$(cmd_host_cc_noped)
$(obj)%.o: $(SRCTREE)/lib/%.c
-	$(HOSTCC) -g $(HOSTCFLAGS) -c -o $@ $<
+	$(cmd_host_cc)
$(obj)%.o: $(SRCTREE)/lib/libfdt/%.c
-	$(HOSTCC) -g $(HOSTCFLAGS_NOPED) -c -o $@ $<
+	$(cmd_host_cc_noped)
subdirs:
 ifeq ($(TOOLSUBDIRS),)
-- 
1.7.5.3


    

Mike Frysinger

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