From 83b7e2a7f2f9cf7651e623c75aa9a27ad6488fb3 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Wed, 6 Apr 2011 13:31:37 +0000 Subject: Handle most LDSCRIPT setting centrally Currently, some linker scripts are found by common code in config.mk. Some are found using CONFIG_SYS_LDSCRIPT, but the code for that is sometimes in arch config.mk and sometimes in board config.mk. Some are found using an arch-specific rule for looking in CPUDIR, etc. Further, the powerpc config.mk rule relied on CONFIG_NAND_SPL when it really wanted CONFIG_NAND_U_BOOT -- which covered up the fact that not all NAND_U_BOOT builds actually wanted CPUDIR/u-boot-nand.lds. Replace all of this -- except for a handful of boards that are actually selecting a linker script in a unique way -- with centralized ldscript finding. If board code specifies LDSCRIPT, that will be used. Otherwise, if CONFIG_SYS_LDSCRIPT is specified, that will be used. If neither of these are specified, then the central config.mk will check for the existence of the following, in order: $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds (only if CONFIG_NAND_U_BOOT) $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds (only if CONFIG_NAND_U_BOOT) $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds $(TOPDIR)/$(CPUDIR)/u-boot.lds Some boards (sc3, cm5200, munices) provided their own u-boot.lds that were dead code, because they were overridden by a CPUDIR u-boot.lds under the old powerpc rules. These boards' own u-boot.lds have bitrotted and no longer work -- these lds files have been removed. Signed-off-by: Scott Wood Tested-by: Graeme Russ --- config.mk | 33 ++++++++++++++++++++++++++++----- 1 file changed, 28 insertions(+), 5 deletions(-) (limited to 'config.mk') diff --git a/config.mk b/config.mk index fa46ff1a51..7ce554ecfe 100644 --- a/config.mk +++ b/config.mk @@ -153,14 +153,37 @@ endif RELFLAGS= $(PLATFORM_RELFLAGS) DBGFLAGS= -g # -DDEBUG OPTFLAGS= -Os #-fomit-frame-pointer + +# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use +# that (or fail if absent). Otherwise, search for a linker script in a +# standard location. + ifndef LDSCRIPT -#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug -ifeq ($(CONFIG_NAND_U_BOOT),y) -LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds -else -LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds + #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug + ifdef CONFIG_SYS_LDSCRIPT + # need to strip off double quotes + LDSCRIPT := $(subst ",,$(CONFIG_SYS_LDSCRIPT)) + endif endif + +ifndef LDSCRIPT + ifeq ($(CONFIG_NAND_U_BOOT),y) + LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds + ifeq ($(wildcard $(LDSCRIPT)),) + LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds + endif + endif + ifeq ($(wildcard $(LDSCRIPT)),) + LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds + endif + ifeq ($(wildcard $(LDSCRIPT)),) + LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot.lds + endif + ifeq ($(wildcard $(LDSCRIPT)),) +$(error could not find linker script) + endif endif + OBJCFLAGS += --gap-fill=0xff gccincdir := $(shell $(CC) -print-file-name=include) -- cgit v1.2.3