toolchain/external: remove Linaro arm toolchain

This toolchain is more than 7 years old now, and not maintained anymore.
Let's therefore remove it from Buildroot. There are still some
alternatives in-tree, such as ARM and Bootlin toolchains

Signed-off-by: Titouan Christophe <titouan.christophe@mind.be>
[Romain:
  - rename TestExternalToolchainLinaroArm to TestExternalToolchainArmGnu
  - update toolchain prefix arm-linux-gnueabihf to arm-none-linux-gnueabihf
  - replace BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM by BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_ARMV7_EABIHF_GLIBC_STABLE
    since the ARM toolchain can't be enabled due to missing NEON support
]
Signed-off-by: Romain Naour <romain.naour@smile.fr>

Config.in.legacy

@@ -146,6 +146,13 @@ endif
 
 comment "Legacy options removed in 2025.11"
 
+config BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM
+	bool "Linaro ARM 2018.05 external toolchain is deprecated"
+	select BR2_LEGACY
+	help
+	  Linaro ARM 2018.05 is no longer maintained and has been
+	  removed from Buildroot.
+
 config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_BE
 	bool "Linaro AArch64 BE 2018.05 external toolchain is deprecated"
 	select BR2_LEGACY

support/config-fragments/autobuild/linaro-arm.config

@@ -1,5 +0,0 @@
-BR2_arm=y
-BR2_cortex_a8=y
-BR2_ARM_EABIHF=y
-BR2_TOOLCHAIN_EXTERNAL=y
-BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM=y

support/config-fragments/autobuild/toolchain-configs.csv

@@ -61,4 +61,3 @@ support/config-fragments/autobuild/br-powerpc-internal-full.config,any
 support/config-fragments/autobuild/br-riscv64-full-internal.config,any
 support/config-fragments/autobuild/br-s390x-z13-internal-glibc.config,any
 support/config-fragments/autobuild/br-xtensa-full-internal.config,any
-support/config-fragments/autobuild/linaro-arm.config,x86

support/testing/tests/package/test_gst1_python.py

@@ -10,7 +10,8 @@ class TestGst1Python(TestPythonPackageBase):
         BR2_cortex_a9=y
         BR2_ARM_ENABLE_VFP=y
         BR2_TOOLCHAIN_EXTERNAL=y
-        BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM=y
+        BR2_TOOLCHAIN_EXTERNAL_BOOTLIN=y
+        BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_ARMV7_EABIHF_GLIBC_STABLE=y
         BR2_PACKAGE_GSTREAMER1=y
         BR2_PACKAGE_GST1_PLUGINS_BASE_PLUGIN_VIDEOTESTSRC=y
         BR2_PACKAGE_GST1_PLUGINS_BAD=y

support/testing/tests/toolchain/test_external.py

@@ -37,15 +37,15 @@ class TestExternalToolchain(infra.basetest.BRTest):
             self.assertTrue(os.path.exists(interp_path))
 
 
-class TestExternalToolchainLinaroArm(TestExternalToolchain):
+class TestExternalToolchainArmGnu(TestExternalToolchain):
     config = BASIC_CONFIG + \
         """
         BR2_arm=y
         BR2_cortex_a8=y
         BR2_TOOLCHAIN_EXTERNAL=y
-        BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM=y
+        BR2_TOOLCHAIN_EXTERNAL_ARM_ARM=y
         """
-    toolchain_prefix = "arm-linux-gnueabihf"
+    toolchain_prefix = "arm-none-linux-gnueabihf"
 
     def test_run(self):
         TestExternalToolchain.common_check(self)

toolchain/toolchain-external/Config.in

@@ -19,7 +19,6 @@ source "toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in"
 
 # ARM (use ARM toolchain by default)
 source "toolchain/toolchain-external/toolchain-external-arm-arm/Config.in"
-source "toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in"
 
 # ARM big-endian
 source "toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in"
@@ -111,7 +110,6 @@ source "toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in.o
 
 # ARM
 source "toolchain/toolchain-external/toolchain-external-arm-arm/Config.in.options"
-source "toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in.options"
 
 # ARM big-endian
 source "toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in.options"

toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in

@@ -1,27 +0,0 @@
-comment "Linaro toolchains available for Cortex-A + EABIhf"
-	depends on BR2_arm
-	depends on !BR2_ARM_CPU_ARMV7A || !BR2_ARM_EABIHF
-
-config BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM
-	bool "Linaro ARM 2018.05"
-	depends on BR2_arm
-	depends on BR2_ARM_CPU_ARMV7A || BR2_ARM_CPU_ARMV8A
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on BR2_ARM_EABIHF
-	depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_8
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_10
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_7
-	select BR2_TOOLCHAIN_HAS_FORTRAN
-	select BR2_TOOLCHAIN_HAS_OPENMP
-	help
-	  Linaro toolchain for the ARM architecture. It uses Linaro
-	  GCC 2018.05 (based on gcc 7.3.1), Linaro GDB 2018.05 (based on
-	  GDB 8.1), glibc 2.25, Binutils 2018.05 (based on 2.28). It
-	  generates code that runs on all Cortex-A profile devices,
-	  but tuned for the Cortex-A9. The code generated is Thumb 2,
-	  with the hard floating point calling convention, and uses
-	  the VFPv3-D16 FPU instructions.

toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in.options

@@ -1,9 +0,0 @@
-if BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM
-
-config BR2_TOOLCHAIN_EXTERNAL_PREFIX
-	default "arm-linux-gnueabihf"
-
-config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
-	default "toolchain-external-linaro-arm"
-
-endif

toolchain/toolchain-external/toolchain-external-linaro-arm/toolchain-external-linaro-arm.hash

@@ -1,3 +0,0 @@
-# Locally calculated
-sha256  0613b5be14eb7d50a772bbd72069c428558e6e53fa5fce7201d75a13a475ffff  gcc-linaro-7.3.1-2018.05-i686_arm-linux-gnueabihf.tar.xz
-sha256  7248bf105d0d468887a9b8a7120bb281ac8ad0223d9cb3d00dc7c2d498485d91  gcc-linaro-7.3.1-2018.05-x86_64_arm-linux-gnueabihf.tar.xz

toolchain/toolchain-external/toolchain-external-linaro-arm/toolchain-external-linaro-arm.mk

@@ -1,16 +0,0 @@
-################################################################################
-#
-# toolchain-external-linaro-arm
-#
-################################################################################
-
-TOOLCHAIN_EXTERNAL_LINARO_ARM_VERSION = 2018.05
-TOOLCHAIN_EXTERNAL_LINARO_ARM_SITE = https://releases.linaro.org/components/toolchain/binaries/7.3-$(TOOLCHAIN_EXTERNAL_LINARO_ARM_VERSION)/arm-linux-gnueabihf
-
-ifeq ($(HOSTARCH),x86)
-TOOLCHAIN_EXTERNAL_LINARO_ARM_SOURCE = gcc-linaro-7.3.1-$(TOOLCHAIN_EXTERNAL_LINARO_ARM_VERSION)-i686_arm-linux-gnueabihf.tar.xz
-else
-TOOLCHAIN_EXTERNAL_LINARO_ARM_SOURCE = gcc-linaro-7.3.1-$(TOOLCHAIN_EXTERNAL_LINARO_ARM_VERSION)-x86_64_arm-linux-gnueabihf.tar.xz
-endif
-
-$(eval $(toolchain-external-package))