arch/x86: remove support for i386

The Linux kernel doesn't even support i386 anymore, there is no NPTL
support for i386 and uClibc-ng only supports NPTL on x86, so there is
essentially no usable thread implementation. Most likely glibc and
musl also don't support i386 either. So it's time to remove the
support for this architecture variant.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

.defconfig

@@ -19,7 +19,6 @@ BR2_i386=y
 # BR2_sparc is not set
 # BR2_sparc64 is not set
 # BR2_x86_64 is not set
-# BR2_x86_i386 is not set
 # BR2_x86_i486 is not set
 # BR2_x86_i586 is not set
 BR2_x86_i686=y

Config.in.legacy

@@ -145,6 +145,12 @@ endif
 ###############################################################################
 comment "Legacy options removed in 2016.05"
 
+config BR2_x86_i386
+	bool "x86 i386 support removed"
+	help
+	  The support for the i386 processors of the x86 architecture
+	  has been removed.
+
 config BR2_PACKAGE_QT5WEBKIT_EXAMPLES
 	bool "qt5webkit-examples package removed"
 	select BR2_LEGACY

arch/Config.in.x86

@@ -25,9 +25,6 @@ choice
 	help
 	  Specific CPU variant to use
 
-config BR2_x86_i386
-	bool "i386"
-	depends on !BR2_x86_64
 config BR2_x86_i486
 	bool "i486"
 	depends on !BR2_x86_64
@@ -210,7 +207,6 @@ config BR2_x86_winchip2
 endchoice
 
 config BR2_ARCH
-	default "i386"		if BR2_x86_i386
 	default "i486"		if BR2_x86_i486
 	default "i586"		if BR2_x86_i586
 	default "i586"		if BR2_x86_x1000
@@ -246,7 +242,6 @@ config BR2_ENDIAN
 	default "LITTLE"
 
 config BR2_GCC_TARGET_ARCH
-	default "i386"		if BR2_x86_i386
 	default "i486"		if BR2_x86_i486
 	default "i586"		if BR2_x86_i586
 	default "i586"		if BR2_x86_x1000

package/openssl/openssl.mk

@@ -53,11 +53,6 @@ ifeq ($(ARCH),x86_64)
 OPENSSL_TARGET_ARCH = x86_64
 endif
 
-# Workaround for bug #3445
-ifeq ($(BR2_x86_i386),y)
-OPENSSL_TARGET_ARCH = generic32 386
-endif
-
 define HOST_OPENSSL_CONFIGURE_CMDS
 	(cd $(@D); \
 		$(HOST_CONFIGURE_OPTS) \

package/qemu/qemu.mk

@@ -23,7 +23,6 @@ HOST_QEMU_DEPENDENCIES = host-pkgconf host-python host-zlib host-libglib2 host-p
 #       arm             arm
 #       armeb           armeb
 #       bfin            not supported
-#       i386            i386
 #       i486            i386
 #       i586            i386
 #       i686            i386

package/uclibc/Config.in

@@ -71,7 +71,7 @@ choice
 		select BR2_TOOLCHAIN_HAS_THREADS
 		select BR2_TOOLCHAIN_HAS_THREADS_NPTL
 		depends on BR2_USE_MMU
-		depends on !BR2_m68k && !BR2_x86_i386
+		depends on !BR2_m68k
 endchoice
 
 config BR2_PTHREAD_DEBUG
@@ -176,7 +176,6 @@ config BR2_UCLIBC_POWERPC_TYPE
 config BR2_UCLIBC_X86_TYPE
 	string
 	depends on BR2_UCLIBC_TARGET_ARCH = "i386"
-	default "386"        if BR2_x86_i386
 	default "486"        if BR2_x86_i486
 	default "586"        if BR2_x86_i586
 	default "586MMX"     if BR2_x86_pentium_mmx

toolchain/toolchain-common.in

@@ -316,7 +316,6 @@ config BR2_TOOLCHAIN_GCC_AT_LEAST
 config BR2_TOOLCHAIN_HAS_SYNC_1
 	bool
 	default y
-	depends on !BR2_x86_i386
 	depends on !BR2_bfin
 	depends on !BR2_microblaze
 	depends on !BR2_sparc
@@ -330,7 +329,6 @@ config BR2_TOOLCHAIN_HAS_SYNC_4
 	bool
 	default y
 	depends on !BR2_sparc
-	depends on !BR2_x86_i386
 	depends on !(BR2_arc && !BR2_ARC_ATOMIC_EXT)
 
 # The availability of __sync for 8-byte types on ARM is somewhat
@@ -362,7 +360,6 @@ config BR2_TOOLCHAIN_X86_HAS_SYNC_8
 	bool
 	default y
 	depends on BR2_i386
-	depends on !BR2_x86_i386
 	depends on !BR2_x86_i486
 	depends on !BR2_x86_c3
 	depends on !BR2_x86_winchip_c6

toolchain/toolchain-external/Config.in

@@ -615,8 +615,7 @@ config BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS
 	bool "Musl 1.1.12 toolchain (experimental)"
 	depends on (BR2_arm && BR2_ARM_EABI) || \
 		(BR2_arm && BR2_ARM_EABIHF && !BR2_ARM_CPU_ARMV4) || \
-		(BR2_armeb && BR2_ARM_EABI) || \
-		(BR2_i386 && !BR2_x86_i386) || \
+		(BR2_armeb && BR2_ARM_EABI) || BR2_i386 || \
 		(BR2_mips && !BR2_SOFT_FLOAT) || \
 		BR2_mipsel || (BR2_powerpc && BR2_powerpc_CLASSIC) || \
 		BR2_sh4 || BR2_sh4eb || \