The riscv-glibc repository version of glibc 2.26 will build for
RISC-V 32bit, but when many packages are built against the resulting
library an 'unknown type name mcontext_t' error is reported. The
definition of mcontext_h in the ucontext.h header file needs to be
moved outside of the '#ifdef __USE_MISC' structure to fix this
issue.
Fixes:
http://autobuild.buildroot.net/results/5aa9cb29c459f511dc9c4fcf218dc9a842505aa3
Signed-off-by: Mark Corbin <mark.corbin@embecosm.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This enables a riscv32 system to be built with a Buildroot generated
toolchain (gcc >= 7.x, binutils >= 2.30, glibc only).
This requires a custom version of glibc 2.26 from the riscv-glibc
repository. Note that there are no tags in this repository, so the
glibc version just consists of the 40 character commit id string.
Thanks to Fabrice Bellard for pointing me towards the 32-bit glibc
repository and for providing the necessary patch to get it to build.
Signed-off-by: Mark Corbin <mark.corbin@embecosm.com>
Reviewed-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
