* Michael Ellerman <patch-notificati...@ellerman.id.au> [2020-09-17 21:28:46]:
> On Tue, 8 Sep 2020 22:58:50 +1000, Michael Ellerman wrote: > > When we added the VDSO32 kconfig symbol, which controls building of > > the 32-bit VDSO, we made it depend on CPU_BIG_ENDIAN (for 64-bit). > > > > That was because back then COMPAT was always enabled for 64-bit, so > > depending on it would have left the 32-bit VDSO always enabled, which > > we didn't want. > > > > [...] > > Applied to powerpc/next. > > [1/1] powerpc/64: Make VDSO32 track COMPAT on 64-bit > > https://git.kernel.org/powerpc/c/231b232df8f67e7d37af01259c21f2a131c3911e > > cheers With this commit which is part of powerpc/next and with /opt/at12.0/bin/gcc --version gcc (GCC) 8.4.1 20191125 (Advance-Toolchain 12.0-3) [e25f27eea473] throws up a compile error on a witherspoon/PowerNV with CONFIG_COMPAT. CONFIG_COMPAT got carried from the distro config. (And looks like most distros seem to be having this config) cc1: error: _-m32_ not supported in this configuration make[4]: *** [arch/powerpc/kernel/vdso32/sigtramp.o] Error 1 make[4]: *** Waiting for unfinished jobs.... cc1: error: _-m32_ not supported in this configuration make[4]: *** [arch/powerpc/kernel/vdso32/gettimeofday.o] Error 1 make[3]: *** [arch/powerpc/kernel/vdso32] Error 2 make[3]: *** Waiting for unfinished jobs.... make[2]: *** [arch/powerpc/kernel] Error 2 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [arch/powerpc] Error 2 make[1]: *** Waiting for unfinished jobs.... make: *** [__sub-make] Error 2 I don't seem to be facing with other compilers like "gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0" and I was able to disable CONFIG_COMPAT and proceed with the build. -- Thanks and Regards Srikar Dronamraju
