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llvm/lld/ELF
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Fangrui Song 8ffb2097cc [ELF] Refine LMA offset propagation rule in D76995 
If neither AT(lma) nor AT>lma_region is specified,
D76995 keeps `lmaOffset` (LMA - VMA) if the previous section is in the
default LMA region.

This patch additionally checks that the two sections are in the same
memory region.

Add a test case derived from https://bugs.llvm.org/show_bug.cgi?id=45313

  .mdata : AT(0xfb01000) { *(.data); } > TCM
  // It is odd to make .bss inherit lmaOffset, because the two sections
  // are in different memory regions.
  .bss : { *(.bss) } > DDR

With this patch, section VMA/LMA match GNU ld. Note, GNU ld supports
out-of-order (w.r.t sh_offset) sections and places .text and .bss in the
same PT_LOAD. We don't have that behavior.

Reviewed By: grimar

Differential Revision: https://reviews.llvm.org/D81986
2020-06-19 09:11:33 -07:00
..
Arch
AArch64ErrataFix.cpp
AArch64ErrataFix.h
ARMErrataFix.cpp
ARMErrataFix.h
CallGraphSort.cpp
CallGraphSort.h
CMakeLists.txt
Config.h [LLD][ThinLTO] Add --thinlto-single-module to allow compiling partial modules. 2020-06-10 15:32:30 -07:00
Driver.cpp [ELF] Improve --export-dynamic-symbol performance by checking whether wildcard is really used 2020-06-17 17:12:10 -07:00
Driver.h
DriverUtils.cpp
DWARF.cpp
DWARF.h
EhFrame.cpp
EhFrame.h
ICF.cpp
ICF.h
InputFiles.cpp [ELF] Refactor ObjFile<ELFT>::initializeSymbols to enforce the invariant: InputFile::symbols has non null entry 2020-06-19 09:05:37 -07:00
InputFiles.h [ELF] Demote lazy symbols relative to a discarded section to Undefined 2020-06-09 11:27:34 -07:00
InputSection.cpp
InputSection.h
LinkerScript.cpp [ELF] Refine LMA offset propagation rule in D76995 2020-06-19 09:11:33 -07:00
LinkerScript.h
LTO.cpp [LLD][ThinLTO] Add --thinlto-single-module to allow compiling partial modules. 2020-06-10 15:32:30 -07:00
LTO.h
MapFile.cpp
MapFile.h
MarkLive.cpp
MarkLive.h
Options.td [LLD][ThinLTO] Add --thinlto-single-module to allow compiling partial modules. 2020-06-10 15:32:30 -07:00
OutputSections.cpp
OutputSections.h
README.md
Relocations.cpp
Relocations.h
ScriptLexer.cpp [ELF] Don't cause assertion failure if --dynamic-list or --version-script takes an empty file 2020-06-05 15:59:54 -07:00
ScriptLexer.h
ScriptParser.cpp [ELF] Improve --export-dynamic-symbol performance by checking whether wildcard is really used 2020-06-17 17:12:10 -07:00
ScriptParser.h [ELF] Improve --export-dynamic-symbol performance by checking whether wildcard is really used 2020-06-17 17:12:10 -07:00
Symbols.cpp [ELF] Refine --export-dynamic-symbol semantics to be compatible GNU ld 2.35 2020-06-01 11:30:03 -07:00
Symbols.h
SymbolTable.cpp [ELF] --wrap: don't error undefined reference to __real_foo (--no-allow-shlib-undefined) if foo is a wrapped definition 2020-06-01 23:00:51 -07:00
SymbolTable.h
SyntheticSections.cpp
SyntheticSections.h
Target.cpp
Target.h
Thunks.cpp
Thunks.h
Writer.cpp [ELF] Refactor ObjFile<ELFT>::initializeSymbols to enforce the invariant: InputFile::symbols has non null entry 2020-06-19 09:05:37 -07:00
Writer.h

README.md

See docs/NewLLD.rst