HomePhabricator

[ELF] - fixed not properly handled @GOTTPOFF relocation against local symbols

Authored by grimar on Dec 21 2015, 2:37 AM.

Description

[ELF] - fixed not properly handled @GOTTPOFF relocation against local symbols

This patch changes sequence of applying relocations, moving tls optimized relocation handling code before code for other locals.
Without that change relocation @GOTTPOFF against local symbol caused runtime error ("unrecognized reloc ...").
That change also should fix other tls optimized relocations, but I did not check them, that's a field for another patch.

R_X86_64_GOTTPOFF relocations against locals can be found when linking against libc.a(malloc.o):
000000000036 000600000016 R_X86_64_GOTTPOFF 0000000000000000 libc_tsd_MALLOC - 4
000000000131 000600000016 R_X86_64_GOTTPOFF 0000000000000000 libc_tsd_MALLOC - 4

Differential revision: http://reviews.llvm.org/D15581

llvm-svn: 256145