Re: liburcu sparc support, build failure on buildd
I support linux on x86 hardware, but on my old Sun blade 100, the only open source OS which consistently installs and runs properly is openbsd for sparc. I must have tried 100 times to get linux to work but it does not work with the rage xl video board and i am not a patient guy.; openbsd does. On Fri, Feb 22, 2013 at 3:42 PM, Patrick Baggett wrote: > > > On Fri, Feb 22, 2013 at 8:15 AM, Mathieu Desnoyers < > mathieu.desnoy...@efficios.com> wrote: > >> Hi, >> >> I notice the following build failure here >> >> https://buildd.debian.org/status/package.php?p=liburcu >> >> Tail of log for liburcu on sparc: >> >> urcu/static/wfqueue.h:84:2: warning: implicit declaration of function >> 'CMM_STORE_SHARED' [-Wimplicit-function-declaration] >> urcu/static/wfqueue.h: In function '___cds_wfq_node_sync_next': >> urcu/static/wfqueue.h:99:2: warning: implicit declaration of function >> 'CMM_LOAD_SHARED' [-Wimplicit-function-declaration] >> urcu/static/wfqueue.h:99:15: warning: assignment makes pointer from >> integer without a cast [enabled by default] >> urcu/static/wfqueue.h:104:4: warning: implicit declaration of function >> 'caa_cpu_relax' [-Wimplicit-function-declaration] >> urcu/static/wfqueue.h: In function '___cds_wfq_dequeue_blocking': >> urcu/static/wfqueue.h:126:55: warning: comparison between pointer and >> integer [enabled by default] >> make[3]: *** [wfqueue.lo] Error 1 >> make[3]: Leaving directory >> `/build/buildd-liburcu_0.7.6-1-sparc-GySyug/liburcu-0.7.6' >> make[2]: *** [all-recursive] Error 1 >> make[2]: Leaving directory >> `/build/buildd-liburcu_0.7.6-1-sparc-GySyug/liburcu-0.7.6' >> make[1]: *** [all] Error 2 >> make[1]: Leaving directory >> `/build/buildd-liburcu_0.7.6-1-sparc-GySyug/liburcu-0.7.6' >> dh_auto_build: make -j1 returned exit code 2 >> make: *** [build-arch] Error 2 >> >> One main question I have: what sparc architectures are supported by >> Debian's "sparc" architecture ? Userspace RCU only supports Sparcv9 and >> onward, because it requires some atomic instructions. >> >> > Debian definitely only supports[1] SPARCv9 compatible CPUs (sun4u, sun4v). > I've heard that Linux on 32-bit SPARC (i.e. sparc <= v8) is shoddy now, but > I certainly haven't tried it. > > [1] http://www.debian.org/ports/sparc/ > > As documented in the urcu README file, building a package that includes >> sparcv9 isntructions for 32-bit sparc can be done with: >> >> CFLAGS="-m32 -Wa,-Av9a -g -O2" ./configure >> > > "v9a" includes VIS instruction set, which is an extension of SPARCv9. I > think only some early Fujitsu SPARC CPUs (pre 2000) are missing it -- the > original UltraSPARC from Sun does include it. Probably safe to turn on, but > technically extends requirements to use the program. > > >> >> But if Debian sparc needs to support pre-v9 sparcs, then I guess it >> would not be appropriate to use v9 instructions for urcu sparc build. >> >> Thoughts ? >> >> Thanks, >> >> Mathieu >> >> -- >> Mathieu Desnoyers >> EfficiOS Inc. >> http://www.efficios.com >> >> >> -- >> To UNSUBSCRIBE, email to debian-sparc-requ...@lists.debian.org >> with a subject of "unsubscribe". Trouble? Contact >> listmas...@lists.debian.org >> Archive: http://lists.debian.org/20130222141551.GB22156@Krystal >> >> >
Re: liburcu sparc support, build failure on buildd
On Fri, Feb 22, 2013 at 8:15 AM, Mathieu Desnoyers < mathieu.desnoy...@efficios.com> wrote: > Hi, > > I notice the following build failure here > > https://buildd.debian.org/status/package.php?p=liburcu > > Tail of log for liburcu on sparc: > > urcu/static/wfqueue.h:84:2: warning: implicit declaration of function > 'CMM_STORE_SHARED' [-Wimplicit-function-declaration] > urcu/static/wfqueue.h: In function '___cds_wfq_node_sync_next': > urcu/static/wfqueue.h:99:2: warning: implicit declaration of function > 'CMM_LOAD_SHARED' [-Wimplicit-function-declaration] > urcu/static/wfqueue.h:99:15: warning: assignment makes pointer from > integer without a cast [enabled by default] > urcu/static/wfqueue.h:104:4: warning: implicit declaration of function > 'caa_cpu_relax' [-Wimplicit-function-declaration] > urcu/static/wfqueue.h: In function '___cds_wfq_dequeue_blocking': > urcu/static/wfqueue.h:126:55: warning: comparison between pointer and > integer [enabled by default] > make[3]: *** [wfqueue.lo] Error 1 > make[3]: Leaving directory > `/build/buildd-liburcu_0.7.6-1-sparc-GySyug/liburcu-0.7.6' > make[2]: *** [all-recursive] Error 1 > make[2]: Leaving directory > `/build/buildd-liburcu_0.7.6-1-sparc-GySyug/liburcu-0.7.6' > make[1]: *** [all] Error 2 > make[1]: Leaving directory > `/build/buildd-liburcu_0.7.6-1-sparc-GySyug/liburcu-0.7.6' > dh_auto_build: make -j1 returned exit code 2 > make: *** [build-arch] Error 2 > > One main question I have: what sparc architectures are supported by > Debian's "sparc" architecture ? Userspace RCU only supports Sparcv9 and > onward, because it requires some atomic instructions. > > Debian definitely only supports[1] SPARCv9 compatible CPUs (sun4u, sun4v). I've heard that Linux on 32-bit SPARC (i.e. sparc <= v8) is shoddy now, but I certainly haven't tried it. [1] http://www.debian.org/ports/sparc/ As documented in the urcu README file, building a package that includes > sparcv9 isntructions for 32-bit sparc can be done with: > > CFLAGS="-m32 -Wa,-Av9a -g -O2" ./configure > "v9a" includes VIS instruction set, which is an extension of SPARCv9. I think only some early Fujitsu SPARC CPUs (pre 2000) are missing it -- the original UltraSPARC from Sun does include it. Probably safe to turn on, but technically extends requirements to use the program. > > But if Debian sparc needs to support pre-v9 sparcs, then I guess it > would not be appropriate to use v9 instructions for urcu sparc build. > > Thoughts ? > > Thanks, > > Mathieu > > -- > Mathieu Desnoyers > EfficiOS Inc. > http://www.efficios.com > > > -- > To UNSUBSCRIBE, email to debian-sparc-requ...@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact > listmas...@lists.debian.org > Archive: http://lists.debian.org/20130222141551.GB22156@Krystal > >
liburcu sparc support, build failure on buildd
Hi, I notice the following build failure here https://buildd.debian.org/status/package.php?p=liburcu Tail of log for liburcu on sparc: urcu/static/wfqueue.h:84:2: warning: implicit declaration of function 'CMM_STORE_SHARED' [-Wimplicit-function-declaration] urcu/static/wfqueue.h: In function '___cds_wfq_node_sync_next': urcu/static/wfqueue.h:99:2: warning: implicit declaration of function 'CMM_LOAD_SHARED' [-Wimplicit-function-declaration] urcu/static/wfqueue.h:99:15: warning: assignment makes pointer from integer without a cast [enabled by default] urcu/static/wfqueue.h:104:4: warning: implicit declaration of function 'caa_cpu_relax' [-Wimplicit-function-declaration] urcu/static/wfqueue.h: In function '___cds_wfq_dequeue_blocking': urcu/static/wfqueue.h:126:55: warning: comparison between pointer and integer [enabled by default] make[3]: *** [wfqueue.lo] Error 1 make[3]: Leaving directory `/build/buildd-liburcu_0.7.6-1-sparc-GySyug/liburcu-0.7.6' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/build/buildd-liburcu_0.7.6-1-sparc-GySyug/liburcu-0.7.6' make[1]: *** [all] Error 2 make[1]: Leaving directory `/build/buildd-liburcu_0.7.6-1-sparc-GySyug/liburcu-0.7.6' dh_auto_build: make -j1 returned exit code 2 make: *** [build-arch] Error 2 One main question I have: what sparc architectures are supported by Debian's "sparc" architecture ? Userspace RCU only supports Sparcv9 and onward, because it requires some atomic instructions. As documented in the urcu README file, building a package that includes sparcv9 isntructions for 32-bit sparc can be done with: CFLAGS="-m32 -Wa,-Av9a -g -O2" ./configure But if Debian sparc needs to support pre-v9 sparcs, then I guess it would not be appropriate to use v9 instructions for urcu sparc build. Thoughts ? Thanks, Mathieu -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com -- To UNSUBSCRIBE, email to debian-sparc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20130222141551.GB22156@Krystal
