On 14/01/2022 17:51, Joel Sherrill wrote:
Is this due to the recent Newlib build system changes?
I guess so although I don't see anything obvious when I
looked at the machine/configure.ac in both versions.
I confirmed jmr3904 could build all tests with this gcc/newlib:
$ ~/rtems-work/tools/6/bin/mips-rtems6-gcc --version
mips-rtems6-gcc (GCC) 10.3.1 20211214 (RTEMS 6, RSB
bb9e049b103f3a47019a6cfad18e2b59c9e9ea97, Newlib eb03ac1)
That should have been the immediately previous version.
It is probably this change:
commit 8fa73a9f8414a4926365324c2fe32a237c2eb91d
Author: Jeff Johnston <jjohn...@redhat.com>
Date: Mon Nov 29 17:33:52 2021 -0500
Modifying patch from: marian.buschsiew...@ovgu.de
The code accessing the floating point control/status register, namely
#define __cfc1(__fcsr) __asm __volatile("cfc1 %0, $31" :
"=r" (__fcsr)
does not compile with mips16. This changed the makefile to pass
-mno-mips16 to avoid the following
compiler error:
mips-mti-elf fails with "Error: unrecognized opcode `cfc1
$3,$31'"
I have no time to dig into the Newlib build system.
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