2 Commits

Author	SHA1	Message	Date
Peter Collingbourne	628ec9f193	ELF: Place relro sections after non-relro sections in r/w segment. ... This is in preparation for my next change, which will introduce a relro nobits section. That requires that relro sections appear at the end of the progbits part of the r/w segment so that the relro nobits section can appear contiguously. Because of the amount of churn required in the test suite, I'm making this change separately. llvm-svn: 291523	2017-01-10 01:21:30 +00:00
Peter Smith	4b360292ed	[ELF][I386] .got.plt entries for i386 should use VA of ifunc resolver ... The i386 glibc ld.so expects the .got.slot entry that is relocated by a R_386_IRELATIVE relocation to point directly at the ifunc resolver and not the address of the PLT entry + 6 (thus entering the lazy resolver). This is also the case for ARM and I suspect it is because these use REL relocations and can't use the addend field to store the address of the ifunc resolver. If the lazy resolver is used we get an error message stating that only R_386_JUMP_SLOT is supported. As ARM and i386 share the same code, I've removed the ARM specific test and added a writeIgotPlt() function that by default calls writeGotPlt(). ARM and i386 override this to write the address of the ifunc resolver. Differential Revision: https://reviews.llvm.org/D27581 llvm-svn: 289198	2016-12-09 09:59:54 +00:00