Due to clang and LLD's tendency to use a PLT for builtins, and as they don't have full support for EABI, we sometimes have to deal with a PLT in .ko files in a clang-built kernel. As such, augment the in-kernel linker to support jump table processing. As there is no particular reason to support lazy binding in kernel modules, only implement Secure-PLT immediate binding. As part of these changes, add elf_cpu_parse_dynamic() to the MD API of the in-kernel linker (except on platforms that use raw object files.) The new function will allow MD code to act on MD tags in _DYNAMIC. Use this new function in the PowerPC MD code to ensure BSS-PLT modules using PLT will be rejected during insertion, and to poison the runtime resolver to ensure we get a clear panic reason if a call is made to the resolver. Reviewed by: jhibbits Differential Revision: https://reviews.freebsd.org/D22608 |
||
---|---|---|
.. | ||
acpica | ||
bios | ||
cloudabi32 | ||
conf | ||
i386 | ||
include | ||
linux | ||
pci | ||
Makefile |