[Buildroot] [PATCH 1/5] toolchain/toolchain-external: drop Synopsys ARC toolchain

Thomas Petazzoni via buildroot <[email protected]>
Newsgroups net.busybox.buildroot
Message-ID <[email protected]> 
This toolchain is from 2024.06 and has not been updated since then. It
was marked in commit 11a8cdd2bbbd0ef4adf600e4792d75f6f2122ec8 in
January 2025.

A warning was sent to Synopsys ARC people in December 2025, and
despite a reply that some effort would be made [1], no contributions
were actually done. Also, Alexey Brodkin is no longer at
Synopsys. Time to remove Synopsys ARC specific toolchain and toolchain
components.

[1] https://lore.kernel.org/buildroot/SJ2PR12MB818487232470DA4456967C73A1A3A@SJ2PR12MB8184.namprd12.prod.outlook.com/

Cc: ARC Maintainers <[email protected]>
Signed-off-by: Thomas Petazzoni <[email protected]>
---
 Config.in.legacy                              |  7 ++++
 toolchain/toolchain-external/Config.in        |  6 ---
 .../toolchain-external-synopsys-arc/Config.in | 18 --------
 .../Config.in.options                         | 41 -------------------
 .../toolchain-external-synopsys-arc.hash      |  7 ----
 .../toolchain-external-synopsys-arc.mk        | 29 -------------
 6 files changed, 7 insertions(+), 101 deletions(-)
 delete mode 100644 toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in
 delete mode 100644 toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in.options
 delete mode 100644 toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.hash
 delete mode 100644 toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.mk

diff --git a/Config.in.legacy b/Config.in.legacy
index e2f9d9131f..da69682f93 100644
--- a/Config.in.legacy
+++ b/Config.in.legacy
@@ -146,6 +146,13 @@ endif
 
 comment "Legacy options removed in 2026.08"
 
+config BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC
+	bool "Synopsys ARC toolchain removed"
+	select BR2_LEGACY
+	help
+	  The Synopsys ARC external toolchain has been removed, as it
+	  was no longer maintained in Buildroot.
+
 config BR2_PACKAGE_TS4900_FPGA
 	bool "ts4900-fpga removed"
 	select BR2_LEGACY
diff --git a/toolchain/toolchain-external/Config.in b/toolchain/toolchain-external/Config.in
index 831387bc4e..9d8c815438 100644
--- a/toolchain/toolchain-external/Config.in
+++ b/toolchain/toolchain-external/Config.in
@@ -14,9 +14,6 @@ source "toolchain/toolchain-external/toolchain-external-arm-aarch64/Config.in"
 # Aarch64 big-endian
 source "toolchain/toolchain-external/toolchain-external-arm-aarch64-be/Config.in"
 
-# ARC
-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"
 
@@ -102,9 +99,6 @@ source "toolchain/toolchain-external/toolchain-external-arm-aarch64/Config.in.op
 # Aarch64 big-endian
 source "toolchain/toolchain-external/toolchain-external-arm-aarch64-be/Config.in.options"
 
-# ARC
-source "toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in.options"
-
 # ARM
 source "toolchain/toolchain-external/toolchain-external-arm-arm/Config.in.options"
 
diff --git a/toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in b/toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in
deleted file mode 100644
index 07688a1416..0000000000
--- a/toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in
+++ /dev/null
@@ -1,18 +0,0 @@
-config BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC
-	bool "Synopsys ARC 2024.06 toolchain"
-	depends on BR2_arc750d || BR2_arc770d || \
-		BR2_archs38_64mpy || BR2_archs38_full || \
-		BR2_archs4x_rel31 || BR2_archs4x
-	depends on BR2_HOSTARCH = "x86_64"
-	depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_15
-	# The toolchains have libncurses and libexpat in their
-	# sysroot, confusing Buildroot and causing build
-	# issues. Disable until the toolchains get fixed.
-	depends on BR2_BROKEN
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_16
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_14
-	help
-	  Toolchain for the ARC cores, from
-	  https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases
diff --git a/toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in.options b/toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in.options
deleted file mode 100644
index c60cf73460..0000000000
--- a/toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in.options
+++ /dev/null
@@ -1,41 +0,0 @@
-if BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC
-
-choice
-	prompt "Synopsys toolchain variant"
-
-config BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC700
-	bool "Linux/uClibc ARC 700"
-	depends on BR2_arc750d || BR2_arc770d
-	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
-	select BR2_USE_WCHAR
-	select BR2_TOOLCHAIN_HAS_THREADS
-	select BR2_TOOLCHAIN_HAS_THREADS_NPTL
-	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
-
-config BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARCHS_UCLIBC
-	bool "Linux/uClibc ARC HS"
-	depends on BR2_archs38_64mpy || BR2_archs38_full || \
-		BR2_archs4x_rel31 || BR2_archs4x
-	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
-	select BR2_USE_WCHAR
-	select BR2_TOOLCHAIN_HAS_THREADS
-	select BR2_TOOLCHAIN_HAS_THREADS_NPTL
-	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
-	select BR2_TOOLCHAIN_HAS_FORTRAN
-
-config BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARCHS_GLIBC
-	bool "Linux/glibc ARC HS"
-	depends on BR2_archs38_64mpy || BR2_archs38_full || \
-		BR2_archs4x_rel31 || BR2_archs4x
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_FORTRAN
-
-endchoice
-
-config BR2_TOOLCHAIN_EXTERNAL_PREFIX
-	default "arc-linux"
-
-config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
-	default "toolchain-external-synopsys-arc"
-
-endif
diff --git a/toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.hash b/toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.hash
deleted file mode 100644
index 52273871ab..0000000000
--- a/toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.hash
+++ /dev/null
@@ -1,7 +0,0 @@
-# From https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/tag/arc-2024.06-release
-sha256  080bbf8c0747d221314d04b0fcef89f91dc82710afa1aa66a88f04c93719663a  arc_gnu_2024.06_prebuilt_uclibc_le_arc700_linux_install.tar.bz2
-sha256  37ad59b2624608cd126fab3a83a188edc18ad9e2bba8bbb778d46cdd49ad2ffe  arc_gnu_2024.06_prebuilt_glibc_le_archs_linux_install.tar.bz2
-sha256  6867bc6f895c29b053020423923ead2054b8474816f1d067f2726b13e8ee16c0  arc_gnu_2024.06_prebuilt_uclibc_le_archs_linux_install.tar.bz2
-sha256  6efd9025e4b226bf1b4a4d448670e00f928e61e0051a0b209b7adaa327945a32  arc_gnu_2024.06_prebuilt_uclibc_be_arc700_linux_install.tar.bz2
-sha256  ae2ffb5fbe8d6002341dd87d005400010e85dfc1df1e8db070a19ab7300d738f  arc_gnu_2024.06_prebuilt_glibc_be_archs_linux_install.tar.bz2
-sha256  892a576acdf962afafde345d2c830317cb14ff8ef95da7cadc79177c226db269  arc_gnu_2024.06_prebuilt_uclibc_be_archs_linux_install.tar.bz2
diff --git a/toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.mk b/toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.mk
deleted file mode 100644
index c88ca35c43..0000000000
--- a/toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.mk
+++ /dev/null
@@ -1,29 +0,0 @@
-################################################################################
-#
-# toolchain-external-synopsys-arc
-#
-################################################################################
-
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_VERSION = 2024.06
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_SITE = https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/download/arc-$(TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_VERSION)-release
-
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC700),y)
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_CORE = arc700
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_LIBC = uclibc
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARCHS_UCLIBC),y)
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_CORE = archs
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_LIBC = uclibc
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARCHS_GLIBC),y)
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_CORE = archs
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_LIBC = glibc
-endif
-
-ifeq ($(BR2_arcle),y)
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_ENDIANESS = le
-else
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_ENDIANESS = be
-endif
-
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_SOURCE = arc_gnu_$(TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_VERSION)_prebuilt_$(TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_LIBC)_$(TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_ENDIANESS)_$(TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_CORE)_linux_install.tar.bz2
-
-$(eval $(toolchain-external-package))
-- 
2.55.0

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