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toolchain: remove CodeSourcery x86 toolchain

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Since glibc 2.17, executable link command need not include the -lrt option for
clock_* system calls. As a result, over time less and less software packages
bother to check whether to toolchain needs -lrt. We are now at a point where
maintainers refuse to add this complexity into their build system. This
requires Buildroot to carry patches fixing this issue indefinitely.

glibc 2.17 is now 4.5 years old. There is no reason to use an older version
with current software.

This commit removes the predefined profile for CodeSourcery x86 toolchain that
is based on glibc 2.16. One may still use the custom external toolchain
support in Buildroot to get this toolchain back, and deal with any build
issues that this toolchain causes.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Baruch Siach 2017-06-16 06:32:47 +03:00 committed by Thomas Petazzoni
parent e251bdbe8d
commit 06cac6460f
6 changed files with 11 additions and 57 deletions
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9
Config.in.legacy
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@ -145,6 +145,15 @@ endif
###############################################################################
comment "Legacy options removed in 2017.08"
config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86
bool "x86 Sourcery toolchain has been removed"
select BR2_LEGACY
help
The Sourcery CodeBench toolchain for the x86 architecture has
been removed, since it uses glibc older than 2.17 that requires
-lrt to link executables using clock_* system calls. This makes
this toolchain difficult to maintain over time.
config BR2_GCC_VERSION_4_8_X
bool "gcc 4.8.x support removed"
select BR2_LEGACY

6
toolchain/toolchain-external/Config.in
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@ -36,9 +36,8 @@ source "toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Conf
# SH4a
source "toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in"
# x86/x86_64 (use amd64 toolchain by default for AMD64)
# x86_64
source "toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in"
source "toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in"
# Kept last, so it remains the non-default choice, unless there isn't
# any available toolchain profile for the currently selected
@ -130,9 +129,8 @@ source "toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Conf
# SH4a
source "toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in.options"
# x86/x86_64
# x86_64
source "toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in.options"
source "toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in.options"
# Custom toolchains
source "toolchain/toolchain-external/toolchain-external-custom/Config.in.options"

29
toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in
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@ -1,29 +0,0 @@
config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86
bool "Sourcery CodeBench x86/x86_64 2012.09"
depends on BR2_i386 || BR2_x86_64
depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
depends on !BR2_STATIC_LIBS
depends on !BR2_x86_jaguar
depends on !BR2_x86_steamroller
select BR2_TOOLCHAIN_EXTERNAL_GLIBC
select BR2_TOOLCHAIN_HAS_SSP
select BR2_TOOLCHAIN_HAS_NATIVE_RPC
select BR2_INSTALL_LIBSTDCPP
select BR2_HOSTARCH_NEEDS_IA32_LIBS
select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
help
Sourcery CodeBench toolchain for the x86/x86_64
architectures, from Mentor Graphics. It uses gcc 4.7.2,
binutils 2.23.51, glibc 2.16, gdb 7.4.50 and kernel headers
3.5.4. It has support for the following variants:
- Intel Pentium 4, glibc, 32 bits
Default for x86, nothing special to do.
- Intel Atom, glibc, 32 bits
Select an Atom core
- Intel Xeon, glibc, 64 bits
Default for x86_64, nothing special to do.
- Intel Core 2, glibc, 64 bits
Select a Core 2 core
Other architecture variants (beyond Pentium-4/Xeon) are
supported as well, but glibc is not optimised for it.

9
toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in.options
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@ -1,9 +0,0 @@
if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86
config BR2_TOOLCHAIN_EXTERNAL_PREFIX
default "i686-pc-linux-gnu"
config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
default "toolchain-external-codesourcery-x86"
endif

3
toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.hash
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@ -1,3 +0,0 @@
# Locally calculated
sha256 ea804cf02014369da52abc4f64e91e96bde2dd2230aca96109459013d4545458 ia32-2012.09-62-i686-pc-linux-gnu-i386-linux.tar.bz2
sha256 1a9519e415a1e6892c760bf21f7e98f3a633a9d1c5bb8781a96d338e4dd62717 ia32-2012.09-62-i686-pc-linux-gnu.src.tar.bz2

12
toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.mk
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@ -1,12 +0,0 @@
################################################################################
#
# toolchain-external-codesourcery-x86
#
################################################################################
TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_SITE = https://sourcery.mentor.com/public/gnu_toolchain/$(TOOLCHAIN_EXTERNAL_PREFIX)
TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_VERSION = 2012.09-62
TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_SOURCE = ia32-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_VERSION)-$(TOOLCHAIN_EXTERNAL_PREFIX)-i386-linux.tar.bz2
TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_ACTUAL_SOURCE_TARBALL = ia32-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_VERSION)-$(TOOLCHAIN_EXTERNAL_PREFIX).src.tar.bz2
$(eval $(toolchain-external-package))