Fangrui Song e07dfa5328 [MC][ELF] Improve st_size propagation rule ... `.symver foo, foo@ver` creates the MCSymbolELF `foo@ver` whose almost all attributes (including st_size) should inherit from `foo` (GNU as behavior). a041ef1bd8 added st_size propagation which works for many cases but fails for the following one: ``` .set __GLIBC_2_12_sys_errlist, _sys_errlist_internal .type __GLIBC_2_12_sys_errlist,@object .size __GLIBC_2_12_sys_errlist, 1080 .symver __GLIBC_2_12_sys_errlist, sys_errlist@GLIBC_2.12 ... _sys_errlist_internal: .size _sys_errlist_internal, 1072 ``` `sys_errlist@GLIBC_2.12`'s st_size is 1072 (incorrect), which does not match `__GLIBC_2_12_sys_errlist`'s st_size: 1080. The problem is that `Base` is (the final) `_sys_errlist_internal` while we want to respect (the intermediate) `__GLIBC_2_12_sys_errlist`'s st_size. Fix this by following the MCSymbolRefExpr assignment chain and finding the closest non-null `getSize()`, which covers most needs. Notably MCBinaryExpr is not handled, but it is rare enough to matter. Reviewed By: peter.smith Differential Revision: https://reviews.llvm.org/D123283		2022-04-08 10:06:44 -07:00
..
MCDisassembler
MCParser	[Support/Hash functions] Change the final() and result() of the hashing functions to return an array of bytes	2022-04-05 21:38:06 -07:00
CMakeLists.txt
ConstantPools.cpp
ELFObjectWriter.cpp	[MC][ELF] Improve st_size propagation rule	2022-04-08 10:06:44 -07:00
MachObjectWriter.cpp
MCAsmBackend.cpp
MCAsmInfo.cpp	[MC] Make MCAsmInfo::isAcceptableChar reflect MCAsmInfo::doesAllowAtInName	2022-03-29 14:01:32 -07:00
MCAsmInfoCOFF.cpp
MCAsmInfoDarwin.cpp
MCAsmInfoELF.cpp
MCAsmInfoGOFF.cpp
MCAsmInfoWasm.cpp
MCAsmInfoXCOFF.cpp
MCAsmMacro.cpp
MCAsmStreamer.cpp
MCAssembler.cpp
MCCodeEmitter.cpp
MCCodeView.cpp
MCContext.cpp	Add DXContainer	2022-03-29 14:34:23 -05:00
MCDwarf.cpp	[Support/Hash functions] Change the final() and result() of the hashing functions to return an array of bytes	2022-04-05 21:38:06 -07:00
MCELFObjectTargetWriter.cpp
MCELFStreamer.cpp
MCExpr.cpp
MCFragment.cpp
MCInst.cpp
MCInstPrinter.cpp
MCInstrAnalysis.cpp
MCInstrDesc.cpp
MCInstrInfo.cpp
MCLabel.cpp
MCLinkerOptimizationHint.cpp
MCMachObjectTargetWriter.cpp
MCMachOStreamer.cpp
MCNullStreamer.cpp
MCObjectFileInfo.cpp	Add DXContainer	2022-03-29 14:34:23 -05:00
MCObjectStreamer.cpp
MCObjectWriter.cpp
MCPseudoProbe.cpp	[llvm-profgen] Decoding pseudo probe for profiled function only.	2022-03-23 14:15:11 -07:00
MCRegisterInfo.cpp
MCSchedule.cpp
MCSection.cpp
MCSectionCOFF.cpp
MCSectionELF.cpp
MCSectionMachO.cpp
MCSectionWasm.cpp
MCSectionXCOFF.cpp
MCStreamer.cpp
MCSubtargetInfo.cpp
MCSymbol.cpp
MCSymbolELF.cpp
MCSymbolXCOFF.cpp
MCTargetOptions.cpp
MCTargetOptionsCommandFlags.cpp
MCValue.cpp
MCWasmObjectTargetWriter.cpp
MCWasmStreamer.cpp
MCWin64EH.cpp	Fix nulltpr typo in comment. NFC	2022-04-04 09:05:06 -07:00
MCWinCOFFStreamer.cpp
MCWinEH.cpp
MCXCOFFObjectTargetWriter.cpp
MCXCOFFStreamer.cpp
StringTableBuilder.cpp
SubtargetFeature.cpp
TargetRegistry.cpp
WasmObjectWriter.cpp
WinCOFFObjectWriter.cpp
XCOFFObjectWriter.cpp