On 2/21/20 9:49 PM, Masahiro Yamada wrote: > On Sat, Feb 22, 2020 at 2:25 PM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: >> >> On 2/21/20 8:53 PM, Masahiro Yamada wrote: >>> On Sat, Feb 22, 2020 at 1:43 PM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote: >>>> >>>> Hi Jani, >>>> >>>> On Fri, Feb 21, 2020 at 7:54 PM Jani Nikula <jani.nikula@xxxxxxxxx> wrote: >>>>> >>>>> $(CC) with $(CFLAGS_GCOV) assumes the output filename with .gcno suffix >>>>> appended is writable. This is not the case when the output filename is >>>>> /dev/null: >>>>> >>>>> HDRTEST drivers/gpu/drm/i915/display/intel_frontbuffer.h >>>>> /dev/null:1:0: error: cannot open /dev/null.gcno >>>>> HDRTEST drivers/gpu/drm/i915/display/intel_ddi.h >>>>> /dev/null:1:0: error: cannot open /dev/null.gcno >>>>> make[5]: *** [../drivers/gpu/drm/i915/Makefile:307: >>>>> drivers/gpu/drm/i915/display/intel_ddi.hdrtest] Error 1 >>>>> make[5]: *** Waiting for unfinished jobs.... >>>>> make[5]: *** [../drivers/gpu/drm/i915/Makefile:307: >>>>> drivers/gpu/drm/i915/display/intel_frontbuffer.hdrtest] Error 1 >>>>> >>>>> Filter out $(CFLAGS_GVOC) from the header test $(c_flags) as they don't >>>>> make sense here anyway. >>>> >>>> >>>> >>>> Is GCOV the only case that produces a separate file? >>>> >>>> Could you also test CONFIG_DEBUG_INFO_SPLIT, please ? >>>> >>>> >>>> The GCC manual says this: >>>> >>>> -gsplit-dwarf >>>> >>>> Separate as much DWARF debugging information as possible into a >>>> separate output >>>> file with the extension .dwo. This option allows the build system >>>> to avoid linking >>>> files with debug information. To be useful, this option requires a debugger >>>> capable of reading .dwo files. >>>> >>> >>> >>> I just tested it. >>> >>> This is not a problem for header test >>> because cmd_hdrtest uses '-S' instead of '-c'. >>> >>> If '-c' were used, we would see a similar error. >>> >>> >>> So, gsplit-dwarf is OK. >> >> Yes, works for me also. >> >> (I think you have a faster build machine that I do. I began the build >> almost immediately after reading your email. :) > > > I use a reasonable PC for my development. > (core-i9 with 4 physical cores) > > > I just compiled under i915/ with this command: > > make drivers/gpu/drm/i915/ Good trick. I did a full build. -- ~Randy _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
