@@ -174,6 +174,9 @@ config BR2_GCC_TARGET_ABI
config BR2_GCC_TARGET_CPU
string
+config BR2_TARGET_ABI_FLAT
+ bool
+
if BR2_arm || BR2_armeb
source "arch/Config.in.arm"
endif
@@ -103,6 +103,14 @@ TARGET_CFLAGS = $(TARGET_CPPFLAGS) $(TARGET_ABI) $(TARGET_OPTIMIZATION) $(TARGET
TARGET_CXXFLAGS = $(TARGET_CFLAGS)
TARGET_LDFLAGS = $(call qstrip,$(BR2_TARGET_LDFLAGS))
+ifeq ($(BR2_TARGET_ABI_FLAT),y)
+TARGET_LDFLAGS += -Wl,-elf2flt
+endif
+
+ifneq ($(BR2_USE_MMU), y)
+TARGET_CFLAGS += -D__NOMMU__
+endif
+
ifeq ($(BR2_TOOLCHAIN_BUILDROOT)$(BR2_TOOLCHAIN_CTNG),y)
TARGET_CROSS=$(HOST_DIR)/usr/bin/$(GNU_TARGET_NAME)-
else
@@ -82,6 +82,11 @@ $(2)_CLEAN_OPT ?= clean
$(2)_UNINSTALL_STAGING_OPT ?= DESTDIR=$$(STAGING_DIR) uninstall
$(2)_UNINSTALL_TARGET_OPT ?= DESTDIR=$$(TARGET_DIR) uninstall
+ifeq ($(BR2_TARGET_ABI_FLAT),y)
+ ifneq ($$($(2)_FLAT_STACKSIZE),)
+ $(2)_CONF_ENV += LDFLAGS="$(TARGET_LDFLAGS) -Wl,-elf2flt=-s$$($(2)_FLAT_STACKSIZE)"
+ endif
+endif
#
# Configure step. Only define it if not already defined by the package
@@ -303,6 +303,11 @@ endif
$(2)_REDISTRIBUTE ?= YES
+ifeq ($(BR2_TARGET_ABI_FLAT),y)
+ ifneq ($$($(2)_FLAT_STACKSIZE),)
+ $(2)_FLAT_LDFLAGS = -Wl,-elf2flt=-s$$($(2)_FLAT_STACKSIZE)
+ endif
+endif
$(2)_DEPENDENCIES ?= $(filter-out $(1),$(patsubst host-host-%,host-%,$(addprefix host-,$($(3)_DEPENDENCIES))))