e7d631c0df
This reverts commit bd9810e176. Indeed,
while uClibc-ng has support for RISC-V 64-bit, this support lacks the
__riscv_flush_icache() function call, which is used by some GCC
builtins used for example in libffi.
Due to this missing __riscv_flush_icache(), anything that links
against libffi fails to build:
/home/test/autobuild/run/instance-0/output-1/host/bin/riscv64-buildroot-linux-uclibc-gcc -o gobject/gobject-query gobject/gobject-query.p/gobject-query.c.o -Wl,--as-needed -Wl,--no-undefined -Wl,-O1 -Wl,--start-group glib/libglib-2.0.so.0.6400.4 gobject/libgobject-2.0.so.0.6400.4 -Wl,--end-group -pthread '-Wl,-rpath,$ORIGIN/../glib:$ORIGIN/' -Wl,-rpath-link,/home/test/autobuild/run/instance-0/output-1/build/libglib2-2.64.4/build/glib -Wl,-rpath-link,/home/test/autobuild/run/instance-0/output-1/build/libglib2-2.64.4/build/gobject
/home/test/autobuild/run/instance-0/output-1/host/lib/gcc/riscv64-buildroot-linux-uclibc/9.3.0/../../../../riscv64-buildroot-linux-uclibc/bin/ld: /home/test/autobuild/run/instance-0/output-1/host/riscv64-buildroot-linux-uclibc/sysroot/usr/lib64/libffi.so.7: undefined reference to `__riscv_flush_icache'
collect2: error: ld returned 1 exit status
Note that this commit means that
support/config-fragments/autobuild/br-riscv64-full-internal.config
will be back to using glibc as the C library, but that is OK, until
uClibc-ng is fixed to implemented __riscv_flush_icache().
This uClibc-ng issue has been reported upstream at
https://mailman.uclibc-ng.org/pipermail/devel/2020-August/002022.html.
Fixes:
http://autobuild.buildroot.net/results/ec1185ad1fd8863a3990143a0af2ace987761a27/
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
154 lines
4.6 KiB
Plaintext
154 lines
4.6 KiB
Plaintext
if BR2_TOOLCHAIN_BUILDROOT_UCLIBC
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comment "uClibc Options"
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config BR2_PACKAGE_UCLIBC
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bool
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default y
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select BR2_PACKAGE_LINUX_HEADERS
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config BR2_UCLIBC_CONFIG
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string "uClibc configuration file to use?"
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default "package/uclibc/uClibc-ng.config"
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help
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Some people may wish to use their own modified uClibc
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configuration file and will specify their config file
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location with this option. See also docs/README in this
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package. If unsure, use the default.
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config BR2_UCLIBC_CONFIG_FRAGMENT_FILES
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string "Additional uClibc configuration fragment files"
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help
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A space-separated list of configuration fragment files, that
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will be merged to the main uClibc configuration file.
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config BR2_TOOLCHAIN_BUILDROOT_WCHAR
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bool "Enable WCHAR support"
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select BR2_USE_WCHAR
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help
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Enable this option if you want your toolchain to support
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wide characters (i.e characters longer than 8 bits, needed
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for locale support).
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config BR2_TOOLCHAIN_BUILDROOT_LOCALE
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bool "Enable toolchain locale/i18n support"
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select BR2_TOOLCHAIN_BUILDROOT_WCHAR
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select BR2_ENABLE_LOCALE
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select BR2_NEEDS_HOST_UTF8_LOCALE
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help
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Enable this option if you want your toolchain to support
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localization and internationalization.
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choice
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prompt "Thread library implementation"
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help
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Use this option to select the thread library implementation
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that should be used in your toolchain.
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config BR2_PTHREADS_NATIVE
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bool "Native POSIX Threading (NPTL)"
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depends on BR2_USE_MMU
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select BR2_TOOLCHAIN_HAS_THREADS
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select BR2_TOOLCHAIN_HAS_THREADS_NPTL
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config BR2_PTHREADS
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bool "linuxthreads"
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depends on BR2_m68k || BR2_microblaze || BR2_or1k || BR2_arm || BR2_armeb || BR2_xtensa
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select BR2_TOOLCHAIN_HAS_THREADS
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config BR2_PTHREADS_NONE
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bool "none"
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endchoice
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config BR2_PTHREAD_DEBUG
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bool "Thread library debugging"
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depends on BR2_PTHREADS || BR2_PTHREADS_NATIVE
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select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
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help
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Build the thread library with debugging enabled.
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config BR2_TOOLCHAIN_BUILDROOT_USE_SSP
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bool "Enable stack protection support"
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depends on BR2_PACKAGE_HOST_BINUTILS_SUPPORTS_CFI
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select BR2_TOOLCHAIN_HAS_SSP
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help
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Enable stack smashing protection support using GCCs
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-fstack-protector-all option in uClibc.
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See
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http://www.linuxfromscratch.org/hints/downloads/files/ssp.txt
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for details.
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config BR2_UCLIBC_INSTALL_UTILS
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bool "Compile and install uClibc utilities"
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default y
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help
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Enabling this option will compile and install the getconf,
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ldconfig and ldd uClibc utilities for the target.
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You can save ~32 KiB in target space by disabling them since
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they're normally not needed.
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# Mapping from the Buildroot architecture configuration options to the
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# uClibc architecture names.
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config BR2_UCLIBC_TARGET_ARCH
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string
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default "arc" if BR2_arcle || BR2_arceb
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default "arm" if BR2_arm || BR2_armeb
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default "m68k" if BR2_m68k
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default "microblaze" if BR2_microblaze
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default "mips" if BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
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default "or1k" if BR2_or1k
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default "powerpc" if BR2_powerpc
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default "sh" if BR2_sh
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default "sparc" if BR2_sparc
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default "xtensa" if BR2_xtensa
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default "i386" if BR2_i386
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default "x86_64" if BR2_x86_64
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config BR2_UCLIBC_MIPS_ABI
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string
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default "O32" if BR2_MIPS_OABI32
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default "N32" if BR2_MIPS_NABI32
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default "N64" if BR2_MIPS_NABI64
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depends on BR2_UCLIBC_TARGET_ARCH = "mips"
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config BR2_UCLIBC_MIPS_NAN
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string
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default "LEGACY" if BR2_MIPS_NAN_LEGACY
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default "2008" if BR2_MIPS_NAN_2008
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depends on BR2_UCLIBC_TARGET_ARCH = "mips"
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config BR2_UCLIBC_SH_TYPE
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string
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default "SH2A" if BR2_sh2a
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default "SH4" if BR2_sh4 || BR2_sh4eb
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depends on BR2_UCLIBC_TARGET_ARCH = "sh"
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config BR2_UCLIBC_SPARC_TYPE
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string
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default "V7" if BR2_sparc_v7 || BR2_sparc_sparchfleon || BR2_sparc_sparcsfleon
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default "V8" if BR2_sparc_v8 || BR2_sparc_sparchfleonv8 || BR2_sparc_sparcsfleonv8
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depends on BR2_UCLIBC_TARGET_ARCH = "sparc"
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config BR2_UCLIBC_POWERPC_TYPE
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string
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default "CLASSIC" if !BR2_powerpc_8540 && !BR2_powerpc_8548
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default "E500" if BR2_powerpc_8540 || BR2_powerpc_8548
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depends on BR2_UCLIBC_TARGET_ARCH = "powerpc"
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config BR2_UCLIBC_X86_TYPE
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string
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default "486" if BR2_x86_i486
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default "586" if BR2_x86_i586
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default "586MMX" if BR2_x86_pentium_mmx
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default "686" if BR2_x86_i686 || BR2_x86_pentiumpro
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default "PENTIUMII" if BR2_x86_pentium2
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default "PENTIUMIII" if BR2_x86_pentium3
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default "PENTIUM4" if BR2_x86_pentium4 || BR2_x86_pentium_m || \
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BR2_x86_nocona || BR2_x86_core2 || BR2_x86_corei7
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depends on BR2_UCLIBC_TARGET_ARCH = "i386"
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endif # BR2_TOOLCHAIN_BUILDROOT_UCLIBC
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