On Wed, Aug 19, 2020 at 3:08 AM MikeB <mabnh...@gmail.com> wrote: > > Reposting in the hopes of getting an answer - I'm stuck. > > I'm in the process of upgrading from Zeus to Dunfell. For my MIPS platform, > the library ABI version has changed from 0 to 5. I have some backward > compatibility issues that require generating at least some libraries with ABI > version 0. I've tried using -fabi_version=0 in my CCFLAGS, but that seems to > be ignored. Can someone tell me how to set the ABI version back to 0 in my > image and SDK? > > I'm building for a custom MIPs platform running on a Cavium Octeon II in > 32-bit mode. > > TUNE_FEATURES = "o32 bigendian fpu-hard octeon2" > > A current Dunfell shared library ELF Header looks like this: > > ELF Header: > Magic: 7f 45 4c 46 01 02 01 00 05 00 00 00 00 00 00 00 > Class: ELF32 > Data: 2's complement, big endian > Version: 1 (current) > OS/ABI: UNIX - System V > ABI Version: 5 > Type: DYN (Shared object file) > Machine: MIPS R3000 > Version: 0x1 > Entry point address: 0x1630 > Start of program headers: 52 (bytes into file) > Start of section headers: 22488 (bytes into file) > Flags: 0x808d1107, noreorder, pic, cpic, > 32bitmode, octeon2, o32, mips64r2 > > The same library built with Zeus looks like this. > > ELF Header: > Magic: 7f 45 4c 46 01 02 01 00 00 00 00 00 00 00 00 00 > Class: ELF32 > Data: 2's complement, big endian > Version: 1 (current) > OS/ABI: UNIX - System V > ABI Version: 0 > Type: DYN (Shared object file) > Machine: MIPS R3000 > Version: 0x1 > Entry point address: 0x1500 > Start of program headers: 52 (bytes into file) > Start of section headers: 22340 (bytes into file) > Flags: 0x808d1107, noreorder, pic, cpic, > 32bitmode, octeon2, o32, mips64r2 > > The ABI Version being the issue. >
This is due to switching default hash style from sysv to gnu starting dunfell. You can switch back to sysv either via LDFLAGS or explicitly define LINKER_HASH_STYLE_mipsarch = "sysv" in your distro.
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