frosted: finetune, remove menuconfig warnings

mk/vars.mk

@@ -180,7 +180,7 @@ TARGET_CXXFLAGS+=	-m$(ADK_TARGET_FLOAT)-float
 endif
 endif
 
-ifeq ($(ADK_TARGET_BINFMT_FLAT),y)
+ifeq ($(ADK_TARGET_BINFMT_FLAT)$(ADK_TARGET_OS_FROSTED),y)
 TARGET_LDFLAGS+=	-Wl,-elf2flt
 TARGET_CFLAGS+=		-Wl,-elf2flt
 TARGET_CXXFLAGS+=	-Wl,-elf2flt
@@ -241,7 +241,7 @@ endif
 
 # special operating system flags
 ifeq ($(ADK_TARGET_OS_FROSTED),y)
-TARGET_CFLAGS+=         -mlong-calls -fno-common -msingle-pic-base -mno-pic-data-is-text-relative
+TARGET_CFLAGS+=         -fPIC -mlong-calls -fno-common -msingle-pic-base -mno-pic-data-is-text-relative
 endif
 
 # special architecture optimization flags

target/config/Config.in.binfmt

@@ -26,11 +26,6 @@ config ADK_TARGET_BINFMT_DSBT
 
 endchoice
 
-config ADK_TARGET_BINFMT_FLAT
-	bool
-	depends on ADK_TARGET_OS_FROSTED
-	default y
-
 # Set up flat binary type
 choice
 prompt "FLAT Binary type"

target/frosted/Config.in

@@ -292,39 +292,30 @@ endif
 
     choice
         prompt "Board"
-        default FROSTED_MACH_STM32F407Discovery
     config FROSTED_MACH_STM32F746Discovery
         bool "STM32F746 Discovery"
         depends on (FROSTED_ARCH_STM32F746)
-        default y
     config FROSTED_MACH_STM32F769Discovery
         bool "STM32F769 Discovery"
         depends on (FROSTED_ARCH_STM32F769)
-        default y
     config FROSTED_MACH_STM32F746Nucleo144
         bool "STM32F746 Nucleo-144"
         depends on (FROSTED_ARCH_STM32F746)
-        default y
     config FROSTED_MACH_STM32F407Discovery
         bool "STM32F407Discovery"
         depends on (FROSTED_ARCH_STM32F407)
-        default y
     config FROSTED_MACH_STM32F405Pyboard
         bool "STM32F405 PyBoard (micropython)"
         depends on (FROSTED_ARCH_STM32F405)
-        default y
     config FROSTED_MACH_STM32F4x1Discovery
         bool "STM32F4x1Discovery"
         depends on (   FROSTED_ARCH_STM32F401 ||FROSTED_ARCH_STM32F411)
-        default y
     config FROSTED_MACH_STM32F429Discovery
         bool "STM32F429Discovery"
         depends on (FROSTED_ARCH_STM32F429)
-        default y
     config FROSTED_MACH_STM32F446Nucleo
         bool "STM32F446 Nucleo"
         depends on (FROSTED_ARCH_STM32F446)
-        default y
 
     config FROSTED_MACH_LPC1768MBED
         bool "LPC1768MBED"
@@ -332,19 +323,15 @@ endif
     config FROSTED_MACH_SEEEDPRO
         bool "SEEEDPRO"
         depends on FROSTED_ARCH_LPC1768
-        default y
     config FROSTED_MACH_LPC1679XPRESSO
         bool "LPC1679XPRESSO"
         depends on FROSTED_ARCH_LPC1769
-        default y
     config FROSTED_MACH_LM3S6965EVB
         bool "lm3s6965evb"
         depends on FROSTED_ARCH_LM3S6965
-        default y
     config FROSTED_MACH_LM3SVIRT
         bool "lm3s-qemu"
         depends on FROSTED_ARCH_LM3SVIRT
-        default y
 
     endchoice
 
@@ -487,7 +474,6 @@ menu "Networking"
 
         config FROSTED_PICOTCP
         bool "Built-in PicoTCP"
-        default y
        endchoice
 
 if FROSTED_PICOTCP 

toolchain/Makefile

@@ -40,7 +40,7 @@ TARGETS+=newlib
 CLIB:=newlib
 endif
 
-ifeq ($(ADK_TARGET_BINFMT_FLAT),y)
+ifeq ($(ADK_TARGET_BINFMT_FLAT)$(ADK_TARGET_OS_FROSTED),y)
 TARGETS+=elf2flt
 ELF2FLT:=elf2flt-install
 endif

toolchain/gcc/Makefile

@@ -51,10 +51,6 @@ GCC_CONFOPTS:=		--prefix=$(TOOLCHAIN_DIR)/usr \
 			--disable-werror \
 			--disable-nls
 
-ifeq ($(ADK_TARGET_LIB_NEWLIB),y)
-GCC_FINAL_CONFOPTS:=	--with-newlib
-endif
-
 ifeq ($(ADK_TARGET_WITH_NPTL),y)
 GCC_FINAL_CONFOPTS:=	--enable-tls --enable-threads --enable-libatomic
 GCC_TLS_CONFOPTS:=	--enable-tls
@@ -68,7 +64,11 @@ GCC_FINAL_CONFOPTS:=	--disable-tls --disable-threads --disable-libatomic
 GCC_TLS_CONFOPTS:=	--disable-tls
 endif
 
-ifeq ($(ADK_TARGET_USE_STATIC_LIBS_ONLY),y)
+ifeq ($(ADK_TARGET_LIB_NEWLIB),y)
+GCC_FINAL_CONFOPTS+=	--with-newlib
+endif
+
+ifeq ($(ADK_TARGET_OS_FROSTED)$(ADK_TARGET_USE_STATIC_LIBS_ONLY),y)
 GCC_FINAL_CONFOPTS+=	--disable-shared
 else
 GCC_FINAL_CONFOPTS+=	--enable-shared --enable-cxx-flags='-fPIC'

toolchain/newlib/Makefile

@@ -15,6 +15,7 @@ NEWLIB_CONFIGURE_ARGS+=	--enable-newlib-fvwrite-in-streamio=no \
 			--enable-newlib-fseek-optimization=no \
 			--enable-newlib_wide_orient=no \
 			--enable-newlib-unbuf-stream-opt=yes
+TARGET_CFLAGS+="-DREENTRANT_SYSCALLS_PROVIDED"
 endif
 	
 
@@ -23,6 +24,7 @@ $(WRKBUILD)/.configured:
 		CC='' \
 		CFLAGS='' \
 		LDFLAGS='' \
+		CFLAGS_FOR_TARGET='$(TARGET_CFLAGS)' \
 		./configure --prefix=/usr \
 		--target=$(GNU_TARGET_NAME) \
 		--disable-nls \
@@ -33,14 +35,16 @@ $(WRKBUILD)/.configured:
 $(WRKBUILD)/.compiled:
 	PATH='$(HOST_PATH)' $(MAKE) -C $(WRKBUILD) \
 		CC='' \
-		CFLAGS='$(TARGET_CFLAGS)' \
+		CFLAGS='' \
+		CFLAGS_FOR_TARGET='$(TARGET_CFLAGS)' \
 		all
 	touch $@
 
 $(WRKBUILD)/.installed: $(WRKBUILD)/.compiled
 	PATH='$(HOST_PATH)' $(MAKE) -C $(WRKBUILD) \
 		CC='' \
-		CFLAGS='$(TARGET_CFLAGS)' \
+		CFLAGS='' \
+		CFLAGS_FOR_TARGET='$(TARGET_CFLAGS)' \
 		DESTDIR=$(STAGING_TARGET_DIR) \
 		install
 	touch $@