sh: Use -m2a-nofpu only

[people/ms/u-boot.git] / Makefile

diff --git a/Makefile b/Makefile
index d23df41fd136a0e2a79024baf7c8a183817769bb..cd265f546677255e5fd42a7f420d0045a56dc07b 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 #
 
 VERSION = 2018
-PATCHLEVEL = 01
+PATCHLEVEL = 03
 SUBLEVEL =
 EXTRAVERSION = -rc3
 NAME =
@@ -811,6 +811,10 @@ ifneq ($(CONFIG_BUILD_TARGET),)
 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
 endif
 
+ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
+ALL-y += init_sp_bss_offset_check
+endif
+
 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
 
 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
@@ -939,6 +943,33 @@ binary_size_check: u-boot-nodtb.bin FORCE
                fi \
        fi
 
+ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
+ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
+subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
+else
+subtract_sys_malloc_f_len = true
+endif
+# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
+# so low that the DTB could probably use 90%+ of the available space, for
+# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
+# safe for now and tweak this later if space becomes tight.
+# A rejected alternative would be to check that some absolute minimum stack
+# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
+# deliberately build-specific, to take account of build-to-build stack usage
+# differences due to different feature sets, there is no common absolute value
+# to check against.
+init_sp_bss_offset_check: u-boot.dtb FORCE
+       @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
+       space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
+       $(subtract_sys_malloc_f_len) ; \
+       quarter_space=$$(($${space} / 4)) ; \
+       if [ $${dtb_size} -gt $${quarter_space} ]; then \
+               echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
+               echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
+               exit 1 ; \
+       fi
+endif
+
 u-boot-nodtb.bin: u-boot FORCE
        $(call if_changed,objcopy)
        $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
@@ -1022,6 +1053,7 @@ u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
 
 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
        $(call if_changed,mkfitimage)
+       $(BOARD_SIZE_CHECK)
 
 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
        $(call if_changed,mkimage)
@@ -1264,6 +1296,10 @@ ifeq ($(CONFIG_KALLSYMS),y)
        $(call cmd,u-boot__) common/system_map.o
 endif
 
+ifeq ($(CONFIG_RISCV),y)
+       @tools/prelink-riscv $@ 0
+endif
+
 quiet_cmd_sym ?= SYM     $@
       cmd_sym ?= $(OBJDUMP) -t $< > $@
 u-boot.sym: u-boot FORCE