llvm/docs
Max Moroz fcdc267f22 [llvm-cov] Add lcov tracefile export format.
Summary:
lcov tracefiles are used by various coverage reporting tools and build
systems (e.g., Bazel). It is a simple text-based format to parse and
more convenient to use than the JSON export format, which needs
additional processing to map regions/segments back to line numbers.

It's a little unfortunate that "text" format is now overloaded to refer
specifically to JSON for export, but I wanted to avoid making any
breaking changes to the UI of the llvm-cov tool at this time.

Patch by Tony Allevato (@allevato).

Reviewers: Dor1s, vsk

Reviewed By: Dor1s, vsk

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D54266

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@346506 91177308-0d34-0410-b5e6-96231b3b80d8
2018-11-09 16:10:44 +00:00
..
_ocamldoc
_static Fix some typos in the doc 2016-08-28 20:29:18 +00:00
_templates
_themes/llvm-theme
CommandGuide [llvm-cov] Add lcov tracefile export format. 2018-11-09 16:10:44 +00:00
Frontend
HistoricalNotes
PDB Update MSF File Documentation. 2018-01-12 21:42:39 +00:00
Proposals [docs] Add rawspeed to test-suite proposals. 2018-10-24 17:35:35 +00:00
TableGen [TableGen] Add a general-purpose JSON backend. 2018-07-11 08:40:19 +00:00
tutorial [BuildingAJIT] Update the Ch1 KaleidoscopeJIT class to expose errors to clients. 2018-10-18 00:51:38 +00:00
AdvancedBuilds.rst Document the behavior of option passing when using -DCLANG_ENABLE_BOOTSTRAP=On 2018-10-17 06:35:10 +00:00
AliasAnalysis.rst [doc] Removed obsolete -count-aa from AliasAnalysis documentation 2018-04-23 13:45:28 +00:00
AMDGPUAsmGFX7.rst [AMDGPU][MC][DOC] Updated AMD GPU assembler description 2018-07-27 14:17:15 +00:00
AMDGPUAsmGFX8.rst [AMDGPU][MC][DOC] Updated AMD GPU assembler description 2018-07-27 14:17:15 +00:00
AMDGPUAsmGFX9.rst [AMDGPU][MC][DOC] Updated AMD GPU assembler description 2018-07-27 14:17:15 +00:00
AMDGPUOperandSyntax.rst [AMDGPU][MC][DOC] Updated AMD GPU assembler description 2018-07-27 14:17:15 +00:00
AMDGPUUsage.rst AMDGPU/Docs: Add product names for Vega20 2018-11-07 20:54:16 +00:00
ARM-BE-bitcastfail.png
ARM-BE-bitcastsuccess.png
ARM-BE-ld1.png
ARM-BE-ldr.png
Atomics.rst fix some various typos in the doc 2016-07-02 19:28:40 +00:00
Benchmarking.rst Add some tips on benchmarking. 2017-05-24 16:39:12 +00:00
BigEndianNEON.rst
BitCodeFormat.rst Add the ShadowCallStack attribute 2018-04-03 20:10:40 +00:00
BlockFrequencyTerminology.rst
BranchWeightMetadata.rst [TI removal] Remove discussion of TerminatorInst from the LLVM 2018-10-18 07:40:24 +00:00
BugLifeCycle.rst Introduce bug life cycle documentation. 2018-11-07 08:49:36 +00:00
Bugpoint.rst Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
CFIVerify.rst [cfi-verify] Abort on unsupported targets 2018-07-16 15:26:44 +00:00
CMake.rst [benchmark] Re-enable benchmarks on all platforms including Windows 2018-09-07 21:47:00 +00:00
CMakeLists.txt [dsymutil][doc] Improve wording in manpage and rename file. 2017-11-02 18:44:54 +00:00
CMakePrimer.rst [docs] In the CMake primer, correct the description of the ARGV/ARGN variables. 2017-08-24 05:38:39 +00:00
CodeGenerator.rst [NFC] fix trivial typos in documents 2018-06-15 05:10:09 +00:00
CodeOfConduct.rst [Conduct] Refine what "rare cases" means wrt violations outside our spaces. 2016-07-06 19:32:41 +00:00
CodingStandards.rst [IR] Replace isa<TerminatorInst> with isTerminator(). 2018-08-26 09:51:22 +00:00
CommandLine.rst Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
CompileCudaWithLLVM.rst [Docs] Update docs to indicate that CUDA compilation is supported on Windows. 2017-01-05 16:54:28 +00:00
CompilerWriterInfo.rst [docs] Update CompilerWriterInfo.rst for MIPS 2018-06-14 15:16:37 +00:00
conf.py Add a CommandGuide for llvm-objdump 2018-08-08 14:39:22 +00:00
Contributing.rst [Docs] Add LLVM for Grad Students to Contributing page. 2018-03-02 14:35:02 +00:00
Coroutines.rst [coroutines] Add support for llvm.coro.noop intrinsics 2018-04-02 16:55:12 +00:00
CoverageMappingFormat.rst [Coverage] Use gap regions to select better line exec counts 2017-09-18 23:37:28 +00:00
DebuggingJITedCode.rst
DeveloperPolicy.rst fix an out of date paragraph noticed by Bryce Lelbach 2018-10-16 16:54:10 +00:00
Docker.rst Migrate dockerfiles to use multi-stage builds. 2018-03-26 15:12:30 +00:00
doxygen-mainpage.dox [docs] Updated docs to work with Doxygen 1.8.11 2016-03-06 03:50:08 +00:00
doxygen.cfg.in [NFC] fix trivial typos in comments and documents 2018-01-26 08:15:29 +00:00
ExceptionHandling.rst [NFC] fix trivial typos in documents and comments 2018-04-12 05:53:20 +00:00
ExtendedIntegerResults.txt
ExtendingLLVM.rst
Extensions.rst MC: Implement support for new .addrsig and .addrsig_sym directives. 2018-07-17 22:17:18 +00:00
FAQ.rst fix some typos in the doc 2016-07-28 09:28:58 +00:00
FaultMaps.rst Fix the docs build 2017-02-07 20:36:03 +00:00
FuzzingLLVM.rst [docs] Try to clarify the FuzzingLLVM docs 2018-08-16 21:55:09 +00:00
GarbageCollection.rst Remove @brief commands from doxygen comments, too. 2018-05-01 16:10:38 +00:00
gcc-loops.png
GetElementPtr.rst [docs] Update code block for compatibility with Sphinx 1.5.1 2017-11-06 11:47:24 +00:00
GettingStarted.rst [docs] Remove reference to makellvm which was removed in rL329041 2018-09-27 03:48:04 +00:00
GettingStartedVS.rst [MC] Fix regression tests on Windows when git “core.autocrlf” is set to true. 2017-11-17 21:59:43 +00:00
GlobalISel.rst [globalisel] Add very brief docs summarizing the ISel part of the LLVMDev tutorial. 2017-10-23 17:18:44 +00:00
GoldPlugin.rst [docs][gold] Fix a typo 2018-08-21 21:00:54 +00:00
HowToAddABuilder.rst Added more info on silent master to the doc. 2017-07-05 20:45:44 +00:00
HowToBuildOnARM.rst
HowToBuildWithPGO.rst Add docs+a script for building clang/LLVM with PGO 2018-10-26 20:56:03 +00:00
HowToCrossCompileBuiltinsOnArm.rst [docs][ARM] Add HowTo for cross compiling and testing compiler-rt builtins 2017-11-07 09:40:05 +00:00
HowToCrossCompileLLVM.rst [docs] Fix unexpected indentation in HowToCrossCompileLLVM.rst 2016-05-10 14:02:46 +00:00
HowToReleaseLLVM.rst docs: Fix formatting in HowToReleaseLLVM 2017-09-19 03:27:26 +00:00
HowToSetUpLLVMStyleRTTI.rst
HowToSubmitABug.rst [docs] Fix mention of GCC frontend 2018-01-15 17:11:22 +00:00
HowToUseAttributes.rst Fix RST docs AttributeList heading underline 2017-03-21 17:05:00 +00:00
HowToUseInstrMappings.rst [docs] Fixing Sphinx warnings to unclog the buildbot 2016-07-20 12:16:38 +00:00
InAlloca.rst [docs] Fixing Sphinx warnings to unclog the buildbot 2016-07-20 12:16:38 +00:00
index.rst Introduce bug life cycle documentation. 2018-11-07 08:49:36 +00:00
LangRef.rst Add support for llvm.is.constant intrinsic (PR4898) 2018-11-07 15:24:12 +00:00
Lexicon.rst Update the coding standards and developer policy documentation surrounding whitespace. 2018-08-10 17:26:07 +00:00
LibFuzzer.rst [libFuzzer] Update documentation regarding MSan. 2018-07-19 17:59:11 +00:00
LinkTimeOptimization.rst [docs] Typos and whitespace fixed in LTO docs. 2016-11-29 18:00:31 +00:00
linpack-pc.png
LLVMBuild.rst Fix LLVMBuild.txt typo. NFC 2017-04-03 18:21:50 +00:00
LLVMBuild.txt
make.bat
Makefile.sphinx Bring back Makefile.sphinx 2016-03-23 00:30:57 +00:00
MarkdownQuickstartTemplate.md [docs] Reinstate r337730 - Add support for Markdown documentation in 2018-08-06 00:38:31 +00:00
MarkedUpDisassembly.rst [docs] Fixing Sphinx warnings to unclog the buildbot 2016-07-20 12:16:38 +00:00
MCJIT-creation.png
MCJIT-dyld-load.png
MCJIT-engine-builder.png
MCJIT-load-object.png
MCJIT-load.png
MCJIT-resolve-relocations.png
MCJITDesignAndImplementation.rst Fix several accidental DOS line endings in source files 2016-01-03 17:22:03 +00:00
MemorySSA.rst [NFC] fix trivial typos in comments and documents 2018-01-26 08:15:29 +00:00
MergeFunctions.rst Updating MergeFunctions.rst 2018-08-18 20:17:19 +00:00
MIRLangRef.rst [x86/MIR] Implement support for pre- and post-instruction symbols, as 2018-08-16 23:11:05 +00:00
NVPTXUsage.rst [CodeGen] Unify MBB reference format in both MIR and debug output 2017-12-04 17:18:51 +00:00
OptBisect.rst [Docs] Remove hard tab character from code block in optbisect documentation 2018-07-27 06:54:13 +00:00
Packaging.rst
Passes.rst [UnJ] Document unroll and jam pass and loop metadata 2018-07-19 12:37:00 +00:00
Phabricator.rst Introduce bug life cycle documentation. 2018-11-07 08:49:36 +00:00
ProgrammersManual.rst [TI removal] Remove discussion of TerminatorInst from the LLVM 2018-10-18 07:40:24 +00:00
Projects.rst
re_format.7
README.txt Remove test commit change. 2017-06-24 20:13:32 +00:00
ReleaseNotes.rst [llvm-cov] Add lcov tracefile export format. 2018-11-09 16:10:44 +00:00
ReleaseProcess.rst [docs] Make ReleaseProcess.rst 80 column. NFCI 2018-01-18 14:57:55 +00:00
ReportingGuide.rst fix some various typos in the doc 2016-07-02 19:28:40 +00:00
ScudoHardenedAllocator.rst [docs] Scudo documentation minor update 2018-05-18 17:02:35 +00:00
SegmentedStacks.rst [docs] Fixing Sphinx warnings to unclog the buildbot 2016-07-20 12:16:38 +00:00
SourceLevelDebugging.rst [IR] Add a boolean field in DILocation to know if a line must covered or not 2018-09-20 08:53:06 +00:00
speculative_load_hardening_microbenchmarks.png [x86/SLH] Add the design document for Speculative Load Hardening, 2018-07-18 14:05:14 +00:00
SpeculativeLoadHardening.md [x86/SLH] Teach SLH to harden against the "ret2spec" attack by 2018-09-04 10:59:10 +00:00
SphinxQuickstartTemplate.rst
StackMaps.rst [docs] Clarify ELF section naming for StackMaps and fix a typo 2018-11-08 17:20:35 +00:00
Statepoints.rst [docs][statepoint] Document explicitly provided stack slots 2018-11-08 23:20:40 +00:00
SupportLibrary.rst [Docs] [Support] Correct a missed reference and use up to date .inc examples. 2018-09-21 01:53:51 +00:00
SystemLibrary.rst [Docs] [Support] System Library to Support Library transition along with minor corrections to reflect it. 2018-09-18 18:05:38 +00:00
TableGenFundamentals.rst
TestingGuide.rst Revamp test-suite documentation 2018-08-31 21:47:01 +00:00
TestSuiteGuide.md Revamp test-suite documentation 2018-08-31 21:47:01 +00:00
TestSuiteMakefileGuide.rst Revamp test-suite documentation 2018-08-31 21:47:01 +00:00
TypeMetadata.rst Fixed broken links in docs. 2017-09-22 21:10:37 +00:00
Vectorizers.rst docs: Remove reference to a deprecated flag 2018-01-23 20:22:37 +00:00
WritingAnLLVMBackend.rst [Docs] Fix typo in scheduler model documentation. enumemation->enumeration 2017-12-10 09:14:35 +00:00
WritingAnLLVMPass.rst Fixed dead links in WritingAnLLVMPass.rst 2017-11-06 09:51:39 +00:00
XRay.rst [Docs] Update of Xray page 2018-07-26 04:44:31 +00:00
XRayExample.rst [XRay][docs] Chrome Trace Viewer Instructions 2018-08-28 17:36:30 +00:00
XRayFDRFormat.rst Tidy some language in the xray documentation. 2018-05-27 09:19:03 +00:00
yaml2obj.rst
YamlIO.rst [Docs] Fix LLVM_YAML_IS_DOCUMENT_LIST_VECTOR 2018-07-23 14:17:43 +00:00

LLVM Documentation
==================

LLVM's documentation is written in reStructuredText, a lightweight
plaintext markup language (file extension `.rst`). While the
reStructuredText documentation should be quite readable in source form, it
is mostly meant to be processed by the Sphinx documentation generation
system to create HTML pages which are hosted on <http://llvm.org/docs/> and
updated after every commit. Manpage output is also supported, see below.

If you instead would like to generate and view the HTML locally, install
Sphinx <http://sphinx-doc.org/> and then do:

    cd <build-dir>
    cmake -DLLVM_ENABLE_SPHINX=true -DSPHINX_OUTPUT_HTML=true <src-dir>
    make -j3 docs-llvm-html
    $BROWSER <build-dir>/docs//html/index.html

The mapping between reStructuredText files and generated documentation is
`docs/Foo.rst` <-> `<build-dir>/docs//html/Foo.html` <-> `http://llvm.org/docs/Foo.html`.

If you are interested in writing new documentation, you will want to read
`SphinxQuickstartTemplate.rst` which will get you writing documentation
very fast and includes examples of the most important reStructuredText
markup syntax.

Manpage Output
===============

Building the manpages is similar to building the HTML documentation. The
primary difference is to use the `man` makefile target, instead of the
default (which is `html`). Sphinx then produces the man pages in the
directory `<build-dir>/docs/man/`.

    cd <build-dir>
    cmake -DLLVM_ENABLE_SPHINX=true -DSPHINX_OUTPUT_MAN=true <src-dir>
    make -j3 docs-llvm-man
    man -l >build-dir>/docs/man/FileCheck.1

The correspondence between .rst files and man pages is
`docs/CommandGuide/Foo.rst` <-> `<build-dir>/docs//man/Foo.1`.
These .rst files are also included during HTML generation so they are also
viewable online (as noted above) at e.g.
`http://llvm.org/docs/CommandGuide/Foo.html`.

Checking links
==============

The reachability of external links in the documentation can be checked by
running:

    cd docs/
    make -f Makefile.sphinx linkcheck

Doxygen page Output
==============

Install doxygen <http://www.stack.nl/~dimitri/doxygen/download.html> and dot2tex <https://dot2tex.readthedocs.io/en/latest>.

    cd <build-dir>
    cmake -DLLVM_ENABLE_DOXYGEN=On <llvm-top-src-dir>
    make doxygen-llvm # for LLVM docs
    make doxygen-clang # for clang docs

It will generate html in
    
    <build-dir>/docs/doxygen/html # for LLVM docs
    <build-dir>/tools/clang/docs/doxygen/html # for clang docs