On Sat, Nov 17, 2012 at 9:20 PM, Eric W. Biederman <ebiederm at xmission.com> wrote: > Yinghai Lu <yinghai at kernel.org> writes: >> >> there is lots of R_X86_64_32 and R_X86_64_32S for 64bit purgatory. >> >> those come from global variables...could kill some by converting them static... >> >> but still have some global string or ro data.... >> >> build one big file include all .S ? > > For R_x86_64_32 and R_x86_64_32S the problem is that the instructions > are using absolute 32bit addresses. > > It is probably overkill but we should be able to solve this with > by adding "-mcmodel=large" to the build of purgatory. it kill some... still have left.... looks they from .S yhlu at linux-siqj:~/xx/xx/utils/kexec-tools> readelf --relocs purgatory/purgatory.ro | grep R_X86_64_32 0000000005e9 00020000000b R_X86_64_32S 0000000000000000 .rodata + c0 0000000005f0 00010000000b R_X86_64_32S 0000000000000000 .text + 5f6 00000000068e 00410000000b R_X86_64_32S 0000000000002008 jump_back_entry + 0 000000000695 00060000000b R_X86_64_32S 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R_X86_64_32 0000000000000000 .debug_str + 521 000000000abc 000e0000000a R_X86_64_32 0000000000000000 .debug_str + 639 000000000aca 000e0000000a R_X86_64_32 0000000000000000 .debug_str + 4ff 000000000ad8 000e0000000a R_X86_64_32 0000000000000000 .debug_str + 527 000000000ae8 000e0000000a R_X86_64_32 0000000000000000 .debug_str + 574 000000000aff 000f0000000a R_X86_64_32 0000000000000000 .debug_loc + be7 000000000b16 000e0000000a R_X86_64_32 0000000000000000 .debug_str + 618 000000000b24 000e0000000a R_X86_64_32 0000000000000000 .debug_str + 634 000000000b32 000e0000000a R_X86_64_32 0000000000000000 .debug_str + 582 000000000b40 000e0000000a R_X86_64_32 0000000000000000 .debug_str + 587 000000000b5c 000e0000000a R_X86_64_32 0000000000000000 .debug_str + 4e6 000000000b81 000e0000000a R_X86_64_32 0000000000000000 .debug_str + 5fa > > Hopefully there are not 32bit or 16bit assembly routines getting linked > in and using problemenatic instructions. i comment out 32bit/16bit related from Makfile...
