Revert "toolchain-internal: skip gcc-intermediate when possible"

While the idea of skipping the intermediate gcc step seems to work
fine in most situations, it causes problems with the SSP
support. Until we can figure out a proper solution for this problem,
we need to revert back to the previous solution of a three stages
build.

This reverts commit 2babed4a50fcd050abc4686e05e24d0e374d10a8.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/gcc/Config.in.host

@@ -3,12 +3,6 @@ comment "GCC Options"
 config BR2_GCC_NEEDS_MPC
 	bool
 
-# Until gcc 4.7, a three stage build process was needed when using
-# NPTL. This hidden option tells whether gcc is a version that
-# requires this three stage build process.
-config BR2_GCC_VERSION_NEEDS_THREE_STAGE_BUILD
-	bool
-
 choice
 	prompt "GCC compiler Version"
 	default BR2_GCC_VERSION_4_4_X if BR2_sparc_sparchfleon || BR2_sparc_sparchfleonv8 || BR2_sparc_sparcsfleon || BR2_sparc_sparcsfleonv8
@@ -22,13 +16,11 @@ choice
 	config BR2_GCC_VERSION_4_2_2_AVR32_2_1_5
 		depends on BR2_avr32
 		bool "gcc 4.2.2-avr32-2.1.5"
-		select BR2_GCC_VERSION_NEEDS_THREE_STAGE_BUILD
 
 	config BR2_GCC_VERSION_4_3_X
 		depends on !BR2_arc && !BR2_avr32 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_cortex_a5 && !BR2_cortex_a7 && !BR2_cortex_a8 && !BR2_cortex_a9 && !BR2_cortex_a15 && !BR2_x86_atom && !BR2_powerpc_e300c2 && !BR2_powerpc_e300c3 && !BR2_powerpc_e500mc && !BR2_powerpc_464 && !BR2_powerpc_464fp && !BR2_powerpc_476 && !BR2_powerpc_476fp && !BR2_fa526 && !BR2_pj4
 		depends on !BR2_ARM_EABIHF
 		bool "gcc 4.3.x"
-		select BR2_GCC_VERSION_NEEDS_THREE_STAGE_BUILD
 
 	config BR2_GCC_VERSION_4_4_X
 		depends on !BR2_arc && !BR2_avr32 && !BR2_cortex_a5 && !BR2_cortex_a7 && !BR2_cortex_a15 && !BR2_x86_atom && !BR2_powerpc_476 && !BR2_powerpc_476fp && !BR2_fa526 && !BR2_pj4
@@ -37,7 +29,6 @@ choice
 		depends on !BR2_ARM_EABIHF
 		# VFPv4 support appeared in gcc 4.5
 		depends on !BR2_ARM_FPU_VFPV4 && !BR2_ARM_FPU_VFPV4D16
-		select BR2_GCC_VERSION_NEEDS_THREE_STAGE_BUILD
 
 	config BR2_GCC_VERSION_4_5_X
 		depends on !BR2_arc && !BR2_avr32 && !BR2_cortex_a7 && !BR2_cortex_a15 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_fa526 && !BR2_pj4
@@ -45,13 +36,11 @@ choice
 		# ARM EABIhf support appeared in gcc 4.6
 		depends on !BR2_ARM_EABIHF
 		bool "gcc 4.5.x"
-		select BR2_GCC_VERSION_NEEDS_THREE_STAGE_BUILD
 
 	config BR2_GCC_VERSION_4_6_X
 		depends on !BR2_arc && !BR2_avr32 && !BR2_bfin && !BR2_cortex_a7 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_pj4
 		select BR2_GCC_NEEDS_MPC
 		bool "gcc 4.6.x"
-		select BR2_GCC_VERSION_NEEDS_THREE_STAGE_BUILD
 
 	config BR2_GCC_VERSION_4_7_X
 		depends on !BR2_arc && !BR2_avr32 && !BR2_bfin && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_pj4

package/gcc/gcc-initial/gcc-initial.mk

@@ -29,7 +29,6 @@ HOST_GCC_INITIAL_CONF_OPT = \
 	--enable-languages=c \
 	--disable-shared \
 	--without-headers \
-	--disable-threads \
 	--with-newlib \
 	--disable-largefile \
 	--disable-nls \
@@ -41,11 +40,4 @@ HOST_GCC_INITIAL_CONF_ENV = \
 HOST_GCC_INITIAL_MAKE_OPT = all-gcc
 HOST_GCC_INITIAL_INSTALL_OPT = install-gcc
 
-ifeq ($(BR2_TOOLCHAIN_NEEDS_THREE_STAGE_BUILD),)
-ifeq ($(BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE),y)
-HOST_GCC_INITIAL_MAKE_OPT += all-target-libgcc
-HOST_GCC_INITIAL_INSTALL_OPT += install-target-libgcc
-endif
-endif
-
 $(eval $(host-autotools-package))

package/glibc/glibc.mk

@@ -28,9 +28,8 @@ ifeq ($(BR2_TOOLCHAIN_BUILDROOT_EGLIBC),y)
 GLIBC_DEPENDENCIES += host-gawk
 endif
 
-# Before (e)glibc is built, we must have the second stage
-# cross-compiler, for some gcc versions
-glibc-build: $(if $(BR2_TOOLCHAIN_NEEDS_THREE_STAGE_BUILD),host-gcc-intermediate)
+# Before (e)glibc is built, we must have the second stage cross-compiler
+eglibc-build: host-gcc-intermediate
 
 GLIBC_SUBDIR = build
 

package/uclibc/Config.in

@@ -115,7 +115,6 @@ choice
 	config BR2_PTHREADS_NATIVE
 		bool "Native POSIX Threading (NPTL)"
 		select BR2_TOOLCHAIN_HAS_THREADS
-		select BR2_TOOLCHAIN_LIBC_NEEDS_THREE_STAGE_BUILD
 		depends on !BR2_arc
 		depends on !BR2_avr32
 		depends on !BR2_bfin

package/uclibc/uclibc.mk

@@ -22,9 +22,8 @@ UCLIBC_INSTALL_STAGING = YES
 # cross-compiler and the kernel headers
 UCLIBC_DEPENDENCIES = host-gcc-initial linux-headers
 
-# Before uClibc is built, we must have the second stage
-# cross-compiler, for some gcc versions, and when NPTL is used.
-uclibc-build: $(if $(BR2_TOOLCHAIN_NEEDS_THREE_STAGE_BUILD),host-gcc-intermediate)
+# Before uClibc is built, we must have the second stage cross-compiler
+uclibc-build: host-gcc-intermediate
 
 # specifying UCLIBC_CONFIG_FILE on the command-line overrides the .config
 # setting.

toolchain/Config.in

@@ -1,13 +1,5 @@
 menu "Toolchain"
 
-config BR2_TOOLCHAIN_NEEDS_THREE_STAGE_BUILD
-	bool
-	default y if BR2_TOOLCHAIN_LIBC_NEEDS_THREE_STAGE_BUILD && \
-		BR2_GCC_VERSION_NEEDS_THREE_STAGE_BUILD
-
-config BR2_TOOLCHAIN_LIBC_NEEDS_THREE_STAGE_BUILD
-	bool
-
 # Should be selected for glibc or eglibc
 config BR2_TOOLCHAIN_USES_GLIBC
 	bool
@@ -19,7 +11,6 @@ config BR2_TOOLCHAIN_USES_GLIBC
 	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
 	select BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
 	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_LIBC_NEEDS_THREE_STAGE_BUILD
 
 config BR2_TOOLCHAIN_USES_UCLIBC
 	bool