On 29/07/2019 12:12, Matteo Croce wrote: > On Mon, Jul 29, 2019 at 1:08 PM Vincenzo Frascino > <[email protected]> wrote: >> >> Hi Matteo, >> >> On 29/07/2019 11:25, Matteo Croce wrote: >>> On Mon, Jul 29, 2019 at 12:16 PM Vincenzo Frascino >>> <[email protected]> wrote: >>>> >>>> Hi Matteo and Will, >>>> >>>> >>>> If I try to build a fresh kernel on my machine with the standard "make >>>> mrproper >>>> && make defconfig && make" I do not see the reported issue (Please see >>>> below >>>> scissors). >>>> >>>> At this point would be interesting to know more about how Matteo is >>>> building the >>>> kernel, and try to reproduce the issue here. >>>> >>>> @Matteo, could you please provide the full .config and the steps you used >>>> to >>>> generate it? Is it an 'oldconfig'? >>>> >>> >>> Hi, >>> >>> yes, this is an oldconfig from a vanilla 5.2, I attach it >>> (the non gzipped config was dropped by the ML filter) >>> >>> >> >> I tried your config file and seems working correctly: >> >> # cp ~/config ../linux-out/.config >> # make oldconfig >> # make >> >> arch/arm64/Makefile:56: CROSS_COMPILE_COMPAT not defined or empty, the compat >> vDSO will not be built >> >> --- >> >> Could you please send to me the config file that does not contain: >> CONFIG_CROSS_COMPILE_COMPAT_VDSO="" >> >> The original one I mean, on which you did not run make oldconfig. >> My suspect at this point is that the string passed to >> CONFIG_CROSS_COMPILE_COMPAT_VDSO is not completely empty. >> >> In fact if I do CONFIG_CROSS_COMPILE_COMPAT_VDSO=" " (single space), >> I do have a failure similar to the one you reported. >> > > That's what I initially thought, but the string is effectively empty: > > # make > arch/arm64/Makefile:58: *** gcc not found, check CROSS_COMPILE_COMPAT. Stop. > # grep CROSS_COMPILE_COMPAT_VDSO .config |hexdump -C > 00000000 43 4f 4e 46 49 47 5f 43 52 4f 53 53 5f 43 4f 4d |CONFIG_CROSS_COM| > 00000010 50 49 4c 45 5f 43 4f 4d 50 41 54 5f 56 44 53 4f |PILE_COMPAT_VDSO| > 00000020 3d 22 22 0a |="".| > 00000024 > >
Ok, it is strange though that your config file works in my environment. Could you please provide to me the starting .config file? Could you please confirm as well that "make mrproper && make defconfig && make" builds correctly for you? Last but not least, are you on any irc channel? Might help speeding up the debugging if we talk there. -- Regards, Vincenzo
