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toolchain/toolchain-buildroot: allow uclibc-ng for riscv

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uclibc-ng supports the RISC-V architecture since version 1.0.31, so
let's allow selecting this C library when RISC-V is used.

There was a previous attempt in commit
bd9810e176, which was reverted in
e7d631c0df, due to uClibc-ng not
implementing the __riscv_flush_icache() which is needed by
gcc. However this function has been implemented in upstream uClibc-ng
as of 1.0.35, so we can now safely re-enable uClibc-ng on RISC-V.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Damien Le Moal 2020-09-08 20:33:19 +09:00 committed by Thomas Petazzoni
parent 641a3bc445
commit 209a082478
2 changed files with 5 additions and 2 deletions
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2
package/uclibc/Config.in
View File

@ -106,6 +106,8 @@ config BR2_UCLIBC_TARGET_ARCH
default "xtensa" if BR2_xtensa
default "i386" if BR2_i386
default "x86_64" if BR2_x86_64
default "riscv64" if BR2_riscv && BR2_ARCH_IS_64
default "riscv32" if BR2_riscv && !BR2_ARCH_IS_64
config BR2_UCLIBC_MIPS_ABI
string

5
toolchain/toolchain-buildroot/Config.in
View File

@ -31,8 +31,9 @@ config BR2_TOOLCHAIN_BUILDROOT_UCLIBC
BR2_arm || BR2_armeb || \
BR2_i386 || BR2_m68k || BR2_microblaze || \
BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el || \
BR2_or1k || BR2_powerpc || BR2_sh2a || BR2_sh4 || \
BR2_sh4eb || BR2_sparc || BR2_xtensa || BR2_x86_64
BR2_or1k || BR2_powerpc || BR2_riscv || BR2_sh2a || \
BR2_sh4 || BR2_sh4eb || BR2_sparc || BR2_xtensa || \
BR2_x86_64
select BR2_TOOLCHAIN_USES_UCLIBC
help
This option selects uClibc-ng as the C library for the