Rafael Espindola 8093abb745 Add r224985 back with a fix. ...

The issues was that AArch64 has additional restrictions on when local
relocations can be used. We have to take those into consideration when
deciding to put a L symbol in the symbol table or not.

Original message:

Remove doesSectionRequireSymbols.

In an assembly expression like

bar:
.long L0 + 1

the intended semantics is that bar will contain a pointer one byte past L0.

In sections that are merged by content (strings, 4 byte constants, etc), a
single position in the section doesn't give the linker enough information.
For example, it would not be able to tell a relocation must point to the
end of a string, since that would look just like the start of the next.

The solution used in ELF to use relocation with symbols if there is a non-zero
addend.

In MachO before this patch we would just keep all symbols in some sections.

This would miss some cases (only cstrings on x86_64 were implemented) and was
inefficient since most relocations have an addend of 0 and can be represented
without the symbol.

This patch implements the non-zero addend logic for MachO too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225048 91177308-0d34-0410-b5e6-96231b3b80d8

2014-12-31 17:19:34 +00:00

..

MCDisassembler

Fix a regression on the disassembling C API.

2014-11-13 16:52:07 +00:00

MCParser

MC: Label definitions are permitted after .set directives

2014-12-24 10:27:50 +00:00

CMakeLists.txt

Nuke MCAnalysis.

2014-09-02 22:32:20 +00:00

ConstantPools.cpp

Fix build failure on windows

2014-07-18 16:41:58 +00:00

ELFObjectWriter.cpp

Add r224985 back with a fix.

2014-12-31 17:19:34 +00:00

LLVMBuild.txt

Nuke MCAnalysis.

2014-09-02 22:32:20 +00:00

MachObjectWriter.cpp

Add r224985 back with a fix.

2014-12-31 17:19:34 +00:00

Makefile

Nuke MCAnalysis.

2014-09-02 22:32:20 +00:00

MCAsmBackend.cpp

…

MCAsmInfo.cpp

Refactor duplicated code.

2014-12-29 15:18:31 +00:00

MCAsmInfoCOFF.cpp

Remove HasLEB128.

2014-08-15 14:01:07 +00:00

MCAsmInfoDarwin.cpp

Add r224985 back with a fix.

2014-12-31 17:19:34 +00:00

MCAsmInfoELF.cpp

Allow target to specify prefix for labels

2014-12-04 00:06:57 +00:00

MCAsmStreamer.cpp

DebugInfo: Omit is_stmt from line table entries on the same line.

2014-12-30 22:47:13 +00:00

MCAssembler.cpp

Add r224985 back with a fix.

2014-12-31 17:19:34 +00:00

MCCodeEmitter.cpp

…

MCCodeGenInfo.cpp

…

MCContext.cpp

Remove StringMap::GetOrCreateValue in favor of StringMap::insert

2014-11-19 05:49:42 +00:00

MCDwarf.cpp

Remove StringMap::GetOrCreateValue in favor of StringMap::insert

2014-11-19 05:49:42 +00:00

MCELF.cpp

[MC] Constify MCELF::GetVisibility and MCELF::getOther

2014-07-11 17:34:44 +00:00

MCELFObjectTargetWriter.cpp

[MC] Pass MCSymbolData to needsRelocateWithSymbol

2014-07-20 23:15:06 +00:00

MCELFStreamer.cpp

Add back commits r219835 and a fixed version of r219829.

2014-10-17 01:48:58 +00:00

MCExpr.cpp

Instead of explicitely comparing both lowercase and uppercase variants.

2014-12-18 23:12:34 +00:00

MCInst.cpp

…

MCInstPrinter.cpp

…

MCInstrAnalysis.cpp

…

MCLabel.cpp

…

MCLinkerOptimizationHint.cpp

…

MCMachObjectTargetWriter.cpp

…

MCMachOStreamer.cpp

Add and update reset() and doInitialization() methods to MC* and passes.

2014-09-17 09:25:36 +00:00

MCNullStreamer.cpp

Remove method that is identical to the base class one.

2014-10-14 17:38:38 +00:00

MCObjectFileInfo.cpp

Commit back the correct bits of r222760 (was r222538).

2014-11-27 17:13:56 +00:00

MCObjectStreamer.cpp

Clean up static analyzer warnings.

2014-12-12 21:48:03 +00:00

MCObjectWriter.cpp

…

MCRegisterInfo.cpp

…

MCSection.cpp

…

MCSectionCOFF.cpp

MC: Fix MCSectionCOFF::PrintSwitchToSection

2014-09-20 20:40:50 +00:00

MCSectionELF.cpp

delete function name from comment

2014-10-09 21:23:39 +00:00

MCSectionMachO.cpp

…

MCStreamer.cpp

Revert r221150, as it broke sanitizer tests

2014-11-03 12:19:03 +00:00

MCSubtargetInfo.cpp

Change MCSchedModel to be a struct of statically initialized data.

2014-09-02 17:43:54 +00:00

MCSymbol.cpp

…

MCSymbolizer.cpp

…

MCTargetOptions.cpp

Convert MC command line option for fatal assembler warnings into a

2014-08-26 18:39:50 +00:00

MCValue.cpp

Fix pr19645.

2014-05-03 19:57:04 +00:00

MCWin64EH.cpp

MC Win64: Put unwind info for COMDAT code into the same COMDAT group

2014-09-04 17:42:03 +00:00

MCWinEH.cpp

Fix Windows unwind info for functions in sections other than .text

2014-12-22 22:10:08 +00:00

StringTableBuilder.cpp

MachObjectWriter: optimize the string table for common suffices

2014-10-06 17:05:19 +00:00

SubtargetFeature.cpp

Fix some cases where StringRef was being passed by const reference. Remove const from some other StringRefs since its implicitly const already.

2014-08-30 16:48:02 +00:00

WinCOFFObjectWriter.cpp

Add r224985 back with a fix.

2014-12-31 17:19:34 +00:00

WinCOFFStreamer.cpp

MC, COFF: Use relocations for function references inside the section

2014-11-11 08:43:57 +00:00

YAML.cpp

Invert the MC -> Object dependency.

2014-07-03 02:01:39 +00:00