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support/config-fragments: fix br-riscv{32,64} toolchain fragments

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Since commit aee39cbf27 ("arch/riscv:
set the default float ABI based on ISA extensions"), RISC-V 32/64 use
the lp32d/lp64d ABIs by default. But our pre-built external toolchains
were built with the LP32/LP64 ABI.

Building with lp32d/lp64d gcc flags, but a toolchain built with the
LP32/LP64 ABI causes a number of failures such as:

  /home/mark/buildroot-test/instance-1/output/host/riscv64-buildroot-linux-gnu/sysroot/usr/include/gnu/stubs.h:11:11: fatal error: gnu/stubs-lp64d.h: No such file or directory

or:

  /home/mark/buildroot-test/instance-1/output/host/opt/ext-toolchain/bin/../lib/gcc/riscv64-buildroot-linux-gnu/7.4.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: /tmp/cc2BTtFE.o: can't link hard-float modules with soft-float modules
  /home/mark/buildroot-test/instance-1/output/host/opt/ext-toolchain/bin/../lib/gcc/riscv64-buildroot-linux-gnu/7.4.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: failed to merge target specific data of file /tmp/cc2BTtFE.o

So let's fix our config fragments to reflect the ABIs those toolchains
were built with.

Fixes:

  http://autobuild.buildroot.net/results/a3959b0613cf561059483abc580b144be4817d1a/ (libsepol)
  http://autobuild.buildroot.net/results/3db50d8a0a913413b2198d6c301419136d2d22a7/ (attr)
  http://autobuild.buildroot.net/results/7780fada05b8440ae3e97618615624a6a2dac03f/ (libusb)
  and many others

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Thomas Petazzoni 2019-09-23 21:36:26 +02:00
parent a87c61737c
commit f89871e810
2 changed files with 2 additions and 0 deletions
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1
support/config-fragments/autobuild/br-riscv32.config
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@ -1,5 +1,6 @@
BR2_riscv=y
BR2_RISCV_32=y
BR2_RISCV_ABI_ILP32=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.net/toolchains/tarballs/br-riscv32-glibc-2019.05.1.tar.bz2"

1
support/config-fragments/autobuild/br-riscv64.config
View file

@ -1,4 +1,5 @@
BR2_riscv=y
BR2_RISCV_ABI_LP64=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.net/toolchains/tarballs/br-riscv64-glibc-2019.05.1.tar.bz2"