4 Commits

Author	SHA1	Message	Date
Elvina Yakubova	b36a3e6140	[llvm-readobj] Update tests because of changes in llvm-readobj behavior ... This patch updates tests using llvm-readobj and llvm-readelf, because soon reading from stdin will be achievable only via a '-' as described here: https://bugs.llvm.org/show_bug.cgi?id=46400. Patch with changes to llvm-readobj behavior is here: https://reviews.llvm.org/D83704 Differential Revision: https://reviews.llvm.org/D83912 Reviewed by: jhenderson, MaskRay, grimar	2020-07-20 10:39:04 +01:00
George Rimar	da4f43a4b4	[llvm-mc] - Produce R_X86_64_PLT32 for "call/jmp foo". ... For instructions like call foo and jmp foo patch changes relocation produced from R_X86_64_PC32 to R_X86_64_PLT32. Relocation can be used as a marker for 32-bit PC-relative branches. Linker will reduce PLT32 relocation to PC32 if function is defined locally. Differential revision: https://reviews.llvm.org/D43383 llvm-svn: 325569	2018-02-20 10:17:57 +00:00
Rafael Espindola	35d6189f0f	Compute A-B when A or B is weak. ... Similar to r235222, but for the weak symbol case. In an "ideal" assembler/object format an expression would always refer to the final value and A-B would only be computed from a section in the same comdat as A and B with A and B strong. Unfortunately that is not the case with debug info on ELF, so we need an heuristic. Since we need an heuristic, we may as well use the same one as gas: * call weak_sym : produces a relocation, even if in the same section. * A - weak_sym and weak_sym -A: don't produce a relocation if we can compute it. This fixes pr23272 and changes the fix of pr22815 to match what gas does. llvm-svn: 235227	2015-04-17 21:15:17 +00:00
Rafael Espindola	c9e7068cdd	Don't be over eager in evaluating a subtraction with a weak symbol. ... In a subtraction of the form A - B, if B is weak, there is no way to represent that on ELF since all relocations add the value of a symbol. llvm-svn: 233139	2015-03-24 23:48:44 +00:00