Messages in this thread | | | Date | Tue, 9 Jun 2020 10:49:54 -0700 | From | Fangrui Song <> | Subject | Re: gcc-5: error: -gz is not supported in this configuration |
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On 2020-06-09, Nick Desaulniers wrote: >On Tue, Jun 9, 2020 at 6:12 AM kernel test robot <lkp@intel.com> wrote: >> >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> head: abfbb29297c27e3f101f348dc9e467b0fe70f919 >> commit: 10e68b02c861ccf2b3adb59d3f0c10dc6b5e3ace Makefile: support compressed debug info >> date: 12 days ago >> config: x86_64-randconfig-r032-20200609 (attached as .config) >> compiler: gcc-5 (Ubuntu 5.5.0-12ubuntu1) 5.5.0 20171010 >> reproduce (this is a W=1 build): >> git checkout 10e68b02c861ccf2b3adb59d3f0c10dc6b5e3ace >> # save the attached .config to linux build tree >> make W=1 ARCH=x86_64 >> >> If you fix the issue, kindly add following tag as appropriate >> Reported-by: kernel test robot <lkp@intel.com> >> >> All errors (new ones prefixed by >>, old ones prefixed by <<): >> >> >> gcc-5: error: -gz is not supported in this configuration > >Hmm...I wonder if the feature detection is incomplete? I suspect it's >possible to not depend on zlib. > >> make[2]: *** [scripts/Makefile.build:277: scripts/mod/empty.o] Error 1 >> make[2]: Target '__build' not remade because of errors. >> make[1]: *** [Makefile:1169: prepare0] Error 2 >> make[1]: Target 'prepare' not remade because of errors. >> make: *** [Makefile:185: __sub-make] Error 2
The output of gcc-5 -v --version on that machine may help. The convoluted gcc_cv_ld_compress_de logic in gcc/configure.ac may be related, but I can't find any mistake that our CONFIG_DEBUG_INFO_COMPRESSED conditions may make.
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