On Tue, 2016-04-05 at 23:33 +0100, James Cowgill wrote: > On Tue, 2016-04-05 at 16:13 -0300, Felipe Sateler wrote: > > > > I'm currently at a loss on why does patchelf fail to build (or rather, > > it fails its testsuite) on all mips variants[1]. > > > > Patchelf modifies ELF binaries, to add/remove RPATH and other > > sections. On all mips variants, some tests fail. From what I can tell, > > the loader complains that the new (altered) file has an invalid > > MIPS.abiflags section, and yet from what I can tell both the original > > and altered binaries have the same (as reported by readelf). > > > > I have printed some more logs at the upstream issue tracker: > > https://github.com/NixOS/patchelf/issues/82 > > > > Any help would be appreciated. I'd rather not remove patchelf from mips. > I had a go at using patchelf on a hello world executable and the > executable immediately segfaulted. From 'readelf -e': > > Before: > [Nr] Name Type Addr Off Size ES Flg Lk Inf Al > [ 3] .MIPS.abiflags MIPS_ABIFLAGS 00400188 000188 000018 18 A 0 0 8 > > Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align > ABIFLAGS 0x000188 0x00400188 0x00400188 0x00018 0x00018 R 0x8 > > After: > [Nr] Name Type Addr Off Size ES Flg Lk Inf Al > [ 1] .MIPS.abiflags MIPS_ABIFLAGS 003fc174 000174 000018 18 A 0 0 4 > > Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align > ABIFLAGS 0x004188 0x00400188 0x00400188 0x00018 0x00018 R 0x8 > > Here the ABIFLAGS segment (this is a special MIPS specific segment > type) is wrong after running patchelf. Also this page will be useful for anyone trying to fix this bug. It contains the "spec" for the abiflags section: https://dmz-portal.mips.com/wiki/MIPS_O32_ABI_-_FR0_and_FR1_Interlinking James
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