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llvm-project/lld/ELF
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Colin Cross e387778722 [ELF] Optimize ScriptLexer::getLineNumber by caching the previous line number and offset 
getLineNumber() was counting the number of line feeds from the start of
the buffer to the current token. For large linker scripts this became a
performance bottleneck. For one 4MB linker script over 4 minutes was
spent in getLineNumber's StringRef::count.

Store the line number from the last token, and only count the additional
line feeds since the last token.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D104137
 		2021-06-22 15:35:24 -07:00
..
Arch [lld][X86] Restore gotEntrySize. 2021-05-17 00:13:00 +01:00
AArch64ErrataFix.cpp [ELF] Move the outSecOff addend from relocAlloc/relocNonAlloc/... to InputSectionBase::relocate 2020-08-11 08:06:38 -07:00
AArch64ErrataFix.h [LLD][ELF] Optimize linker script filename glob pattern matching NFC 2020-09-16 10:26:11 +01:00
ARMErrataFix.cpp [ELF] Move the outSecOff addend from relocAlloc/relocNonAlloc/... to InputSectionBase::relocate 2020-08-11 08:06:38 -07:00
ARMErrataFix.h [LLD][ELF] Optimize linker script filename glob pattern matching NFC 2020-09-16 10:26:11 +01:00
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
…
Config.h [ELF] Add -Bno-symbolic 2021-05-14 09:40:32 -07:00
DWARF.cpp [lib/Object] - Generalize the RelocationResolver API. 2020-11-20 10:32:49 +03:00
DWARF.h [ELF] --gdb-index: skip SHF_GROUP .debug_info 2020-08-13 09:11:01 -07:00
Driver.cpp [ELF] Delete --no-cref which does not exist in GNU ld 2021-06-20 14:28:56 -07:00
Driver.h [LLD] Rename lld port driver entry function to a consistent name 2020-12-18 12:18:37 +05:30
DriverUtils.cpp [ELF] Rewriting the path of sample profile file for --reproduce response.txt 2021-02-09 00:00:16 -08:00
EhFrame.cpp ELF: Teach the linker about the 'B' augmentation string character. 2021-01-05 19:51:11 -08:00
EhFrame.h [ELF] --icf: don't fold text sections with LSDA 2020-08-05 09:16:28 -07:00
ICF.cpp [LLD][ELF] Improve ICF for relocations to ineligible sections via "aliases" 2020-10-15 12:43:14 +01:00
ICF.h
…
InputFiles.cpp [LLD] Improve reporting unresolved symbols in shared libraries 2021-05-11 12:48:29 +07:00
InputFiles.h [LLD] Improve reporting unresolved symbols in shared libraries 2021-05-11 12:48:29 +07:00
InputSection.cpp [ELF] Simplify getAArch64UndefinedRelativeWeakVA. NFC 2021-06-10 13:30:16 -07:00
InputSection.h [ELF] Don't consider SHF_ALLOC ".debug*" sections debug sections 2020-11-12 09:59:43 -08:00
LTO.cpp [WPD][ELF] Allow whole program devirtualization for version script localized symbols 2021-03-09 22:33:47 -08:00
LTO.h
…
LinkerScript.cpp [ELF] Add OVERWRITE_SECTIONS command 2021-06-13 12:41:11 -07:00
LinkerScript.h [ELF] Add OVERWRITE_SECTIONS command 2021-06-13 12:41:11 -07:00
MapFile.cpp [lld][ELF] Add additional time trace categories 2020-11-10 10:28:46 +00:00
MapFile.h [ELF] Add --print-archive-stats= 2020-04-29 18:04:37 -07:00
MarkLive.cpp [ELF] Default to -z start-stop-gc with a glibc "__libc_" special case 2021-04-16 12:18:46 -07:00
MarkLive.h
…
Options.td [ELF] Delete --no-cref which does not exist in GNU ld 2021-06-20 14:28:56 -07:00
OutputSections.cpp [ELF] --emit-relocs: fix a crash if .rela.dyn is an empty output section 2020-12-16 08:59:38 -08:00
OutputSections.h [ELF][NFCI] small cleanup to OutputSections.h 2021-01-12 23:09:16 +00:00
README.md
…
Relocations.cpp [ELF] Don't suggest alternative spelling of an empty name 2021-05-03 09:04:55 -07:00
Relocations.h [ELF] Support .rela.eh_frame with unordered r_offset values 2021-04-29 08:51:09 -07:00
ScriptLexer.cpp [ELF] Optimize ScriptLexer::getLineNumber by caching the previous line number and offset 2021-06-22 15:35:24 -07:00
ScriptLexer.h [ELF] Optimize ScriptLexer::getLineNumber by caching the previous line number and offset 2021-06-22 15:35:24 -07:00
ScriptParser.cpp [ELF] Add OVERWRITE_SECTIONS command 2021-06-13 12:41:11 -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
SymbolTable.cpp [ELF] --wrap: don't clear sym->isUsedInRegularObj if real->isUsedInRegularObj; set wrap's initial binding to sym's 2021-04-17 00:29:51 -07:00
SymbolTable.h [ELF] Replace SymbolTable::forEachSymbol with iterator_range symbols() 2019-11-26 09:09:32 -08:00
Symbols.cpp [lld:elf] Weaken the requirement for a computed binding to be STB_LOCAL 2021-05-24 23:32:21 -04:00
Symbols.h [LTO] Prevent devirtualization for symbols dynamically exported 2021-01-27 15:54:13 -08:00
SyntheticSections.cpp [lld][X86] Restore gotEntrySize. 2021-05-17 00:13:00 +01:00
SyntheticSections.h [LLD][ELF] - Use LLVM_ELF_IMPORT_TYPES_ELFT instead of multiple types definitions. NFCI. 2020-12-29 10:50:07 +03:00
Target.cpp [ELF] Rename adjustRelaxExpr to adjustTlsExpr and delete the unused `data` parameter. NFC 2020-11-25 09:00:55 -08:00
Target.h [lld][X86] Restore gotEntrySize. 2021-05-17 00:13:00 +01:00
Thunks.cpp [PowerPC][LLD] Make sure that the correct Thunks are used. 2021-05-06 12:00:04 -05:00
Thunks.h [lld] Add missing includes (NFC) 2021-06-03 18:55:18 +02:00
Writer.cpp [ELF] Consider that NOLOAD sections should be placed in a PT_LOAD segment 2021-06-16 12:36:45 +02:00
Writer.h Revert "Revert r370635, it caused PR43241." 2019-09-06 15:57:24 +00:00

README.md

See docs/NewLLD.rst