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/ -- Best Regards Masahiro Yamada _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
