On Fri, 2015-01-30 at 18:42 +0100, Andreas Cadhalpun wrote: > Hi James, > > On 30.01.2015 18:34, James Cowgill wrote: > > On Fri, 2015-01-30 at 18:13 +0100, Andreas Cadhalpun wrote: > >> However, I wonder if mipsdspr1, mipsdspr2 and mipsfpu really have to be > >> disabled on mips64. > >> Can you test, if it works with only disabling mips32r2? > > > > I'm about to go home now, I'll let you know how the build goes on > > Monday. > > OK, thanks.
It failed with: > /tmp/ccAK6rnm.s: Assembler messages: > /tmp/ccAK6rnm.s:15: Warning: the `dspr2' extension requires MIPS64 revision 2 > or greater > /tmp/ccAK6rnm.s:17316: Error: opcode not supported on this processor: mips64 > (mips64) `ext $5,$2,4,4' > /tmp/ccAK6rnm.s:17544: Error: opcode not supported on this processor: mips64 > (mips64) `ext $6,$3,2,2' > /tmp/ccAK6rnm.s:17545: Error: opcode not supported on this processor: mips64 > (mips64) `ext $7,$3,4,2' > /tmp/ccAK6rnm.s:17546: Error: opcode not supported on this processor: mips64 > (mips64) `ext $17,$3,6,2' > /tmp/ccAK6rnm.s:17556: Error: opcode not supported on this processor: mips64 > (mips64) `ext $6,$3,12,1' > /tmp/ccAK6rnm.s:17557: Error: opcode not supported on this processor: mips64 > (mips64) `ext $7,$3,13,1' > /tmp/ccAK6rnm.s:17558: Error: opcode not supported on this processor: mips64 > (mips64) `ext $17,$3,14,1' > /tmp/ccAK6rnm.s:17784: Error: opcode not supported on this processor: mips64 > (mips64) `ext $5,$2,2,2' > /tmp/ccAK6rnm.s:17785: Error: opcode not supported on this processor: mips64 > (mips64) `ext $7,$2,4,2' > /tmp/ccAK6rnm.s:17786: Error: opcode not supported on this processor: mips64 > (mips64) `ext $8,$2,6,2' > /tmp/ccAK6rnm.s:18028: Error: opcode not supported on this processor: mips64 > (mips64) `ext $5,$4,4,4' > common.mak:49: recipe for target 'libavcodec/aacdec.o' failed > make[2]: *** [libavcodec/aacdec.o] Error 1 Which I find curious because ext is a mips(32|64)r2 instruction and I thought I had just disabled those :) > > Just off the top of my head (I haven't looked at the code), if > > any of those features use assembly and do any pointer arithmetic they > > might need a small amount of porting. > > These features are about the assembler optimizations found in > libavcodec/mips/* and libavutil/mips/*. I don't know if they do any > pointer arithmetic, though. Like Timothy said, yes they use some pointer arithmetic so they will need porting to MIPS64. Also since the Debian mips port is hard-float, you should be able to enable the FPU instruction even on mips and mipsel (it fails at the moment). I can have a look at all this and submit some patches upstream when they're ready (don't know how long it will take to do this though). James -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
