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Petr Hosek 81eeabbd97 [ELF] Add --dependency-file option 
Clang and GCC have a feature (-MD flag) to create a dependency file
in a format that build systems such as Make or Ninja can read, which
specifies all the additional inputs such .h files.

This change introduces the same functionality to lld bringing it to
feature parity with ld and gold which gained this feature recently.
See https://sourceware.org/bugzilla/show_bug.cgi?id=22843 for more
details and discussion.

The implementation corresponds to -MD -MP compiler flag where the
generated dependency file also includes phony targets which works
around the errors where the dependency is removed. This matches the
format used by ld and gold.

Fixes PR42806

Differential Revision: https://reviews.llvm.org/D82437
 		2020-08-03 16:59:13 -07:00
..
Arch [PowerPC] Support for R_PPC64_REL24_NOTOC calls where the caller has no TOC and the callee is not DSO local 2020-07-29 19:49:28 +00:00
AArch64ErrataFix.cpp [ELF] Use namespace qualifiers (lld:: or elf::) instead of `namespace lld { namespace elf {` 2020-05-15 08:49:53 -07:00
AArch64ErrataFix.h [ELF] Fix variable names in comments after VariableName -> variableName change 2019-07-16 05:50:45 +00:00
ARMErrataFix.cpp [ELF] Use namespace qualifiers (lld:: or elf::) instead of `namespace lld { namespace elf {` 2020-05-15 08:49:53 -07:00
ARMErrataFix.h [ELF][ARM] Implement --fix-cortex-a8 to fix erratum 657417 2019-09-16 09:38:38 +00:00
CMakeLists.txt [CMake] Make `intrinsics_gen` dependency unconditional. 2020-07-17 16:43:17 -07:00
CallGraphSort.cpp [COFF] Port CallGraphSort to COFF from ELF 2020-07-30 15:21:44 -07:00
CallGraphSort.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Config.h [ELF] Add --dependency-file option 2020-08-03 16:59:13 -07:00
DWARF.cpp [ELF] Use namespace qualifiers (lld:: or elf::) instead of `namespace lld { namespace elf {` 2020-05-15 08:49:53 -07:00
DWARF.h [DebugInfo] Do not hang when parsing a malformed .debug_pub* section. 2020-07-09 19:15:11 +07:00
Driver.cpp [ELF] Add --dependency-file option 2020-08-03 16:59:13 -07:00
Driver.h [Coding style change] Rename variables so that they start with a lowercase letter 2019-07-10 05:00:37 +00:00
DriverUtils.cpp [ELF] Use namespace qualifiers (lld:: or elf::) instead of `namespace lld { namespace elf {` 2020-05-15 08:49:53 -07:00
EhFrame.cpp [ELF] Use namespace qualifiers (lld:: or elf::) instead of `namespace lld { namespace elf {` 2020-05-15 08:49:53 -07:00
EhFrame.h [Coding style change] Rename variables so that they start with a lowercase letter 2019-07-10 05:00:37 +00:00
ICF.cpp [ELF] Use namespace qualifiers (lld:: or elf::) instead of `namespace lld { namespace elf {` 2020-05-15 08:49:53 -07:00
ICF.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
InputFiles.cpp [ELF] Add --dependency-file option 2020-08-03 16:59:13 -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 [ELF] -r: rewrite SHT_GROUP content if some members are combined or discarded 2020-07-21 08:49:45 -07:00
InputSection.h [ELF][PPC64] Suppress toc-indirect to toc-relative relaxation if R_PPC64_TOC16_LO is seen 2020-04-30 09:16:51 -07:00
LTO.cpp Rename basic block sections options to be consistent. 2020-07-31 11:50:55 -07:00
LTO.h [Coding style change] Rename variables so that they start with a lowercase letter 2019-07-10 05:00:37 +00:00
LinkerScript.cpp [ELF] Refine LMA offset propagation rule in D76995 2020-06-19 09:11:33 -07:00
LinkerScript.h [ELF][ARM] Support /DISCARD/ of subset of .ARM.exidx sections 2020-05-11 14:27:13 +01:00
MapFile.cpp [ELF] Use namespace qualifiers (lld:: or elf::) instead of `namespace lld { namespace elf {` 2020-05-15 08:49:53 -07:00
MapFile.h [ELF] Add --print-archive-stats= 2020-04-29 18:04:37 -07:00
MarkLive.cpp [ELF] Use namespace qualifiers (lld:: or elf::) instead of `namespace lld { namespace elf {` 2020-05-15 08:49:53 -07:00
MarkLive.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Options.td [ELF] Add --dependency-file option 2020-08-03 16:59:13 -07:00
OutputSections.cpp [ELF] -r: rewrite SHT_GROUP content if some members are combined or discarded 2020-07-21 08:49:45 -07:00
OutputSections.h [ELF] Refactor uses of getInputSections to improve efficiency NFC 2020-01-21 12:27:52 +00:00
README.md
…
Relocations.cpp [ELF] Rename canRelax to toExecRelax. NFC 2020-07-08 10:27:31 -07:00
Relocations.h LLD Support for Basic Block Sections 2020-04-07 06:55:57 -07:00
ScriptLexer.cpp [LLD][ELF] - Linkerscript: report location for the "unclosed comment in a linker script" error. 2020-07-24 11:38:26 +03:00
ScriptLexer.h [LLD][ELF] - Linkerscript: report location for the "unclosed comment in a linker script" error. 2020-07-24 11:38:26 +03:00
ScriptParser.cpp [lld][linkerscript] Fix handling of DEFINED. 2020-07-28 21:18:01 +01:00
ScriptParser.h [ELF] Improve --export-dynamic-symbol performance by checking whether wildcard is really used 2020-06-17 17:12:10 -07:00
SymbolTable.cpp [ELF] Drop an unneeded reference to `symtab` from SymbolTable::addSymbol 2020-07-06 12:05:54 -07:00
SymbolTable.h [ELF] Replace SymbolTable::forEachSymbol with iterator_range symbols() 2019-11-26 09:09:32 -08:00
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 [LLD][ELF] Implement --discard-* for cases when -r or --emit-relocs are used. 2020-04-25 18:59:41 +07:00
SyntheticSections.cpp [DebugInfo] Add more checks to parsing .debug_pub* sections. 2020-07-09 19:15:31 +07:00
SyntheticSections.h [LLD][ELF][ARM] recommit Fix ARM Exidx order for non monotonic section order 2020-04-24 13:47:28 +01:00
Target.cpp [ELF] Use namespace qualifiers (lld:: or elf::) instead of `namespace lld { namespace elf {` 2020-05-15 08:49:53 -07:00
Target.h [PowerPC] Implement R_PPC64_REL24_NOTOC local calls, callee requires a TOC 2020-07-20 17:46:49 +00:00
Thunks.cpp [PowerPC] Support for R_PPC64_REL24_NOTOC calls where the caller has no TOC and the callee is not DSO local 2020-07-29 19:49:28 +00:00
Thunks.h [ELF][PPC32] Implement IPLT code sequence for non-preemptible IFUNC 2019-12-29 22:42:53 -08:00
Writer.cpp [ELF] Add -z start-stop-visibility= to set __start_/__stop_ symbol visibility 2020-06-23 15:59:59 -07:00
Writer.h Revert "Revert r370635, it caused PR43241." 2019-09-06 15:57:24 +00:00

README.md

See docs/NewLLD.rst