在 2018-03-28三的 15:54 +0200，Torbjörn Granlund写道： > Jiaxun Yang <[email protected]> writes: > > > I've never seen "mipsisa64r2el" before. > > Yes, it's rare. However, according to config.sub from GCC [1], it's > not > illegal. > > Good! We woudn't want to be gaoled for a CPU moniker! > > I ran it on a LFS rootfs provided by Loongson (A Chinese MIPS64r2 > processor). > > [1]https://github.com/gcc-mirror/gcc/blob/master/config.sub > > It seems that GMP's configfsf.sub also has that. Now, I have no idea > what it means. Is is just a novel name for mips64r2el or is it > somehow > a different ABI?
It should be a novel name of mips64r2el. I don't know if mips64r2el is illegal but it doesn't recognize by config.sub . > > If you make the obvious change to configure.ac, then build twice, > once > with --disable-shared and once with --disable-static, does > > make && make check > > run to without any errors. (OK, you told me you were cross > compiling, > so perhaps that will require some intermediary command. And "make > check > TESTS=" for just building the tests would perhaps be useful.) Yes I've tried the tests on a Loongson target system with a native build. After use mips64* instead of mips*64* in configure and set ABI to ABI=64. No error was reported. I'm not sure if this change will break other MIPS systems. But since all MIPS triplets with *64* included should support 64 o32 N32 ABIs, probably it's going to work just fine. > -- Jiaxun Yang <[email protected]>
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