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llvm-mirror/tools
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Lang Hames 595027e9c3 [JITLink] Switch from an atom-based model to a "blocks and symbols" model. 
In the Atom model the symbols, content and relocations of a relocatable object
file are represented as a graph of atoms, where each Atom represents a
contiguous block of content with a single name (or no name at all if the
content is anonymous), and where edges between Atoms represent relocations.
If more than one symbol is associated with a contiguous block of content then
the content is broken into multiple atoms and layout constraints (represented by
edges) are introduced to ensure that the content remains effectively contiguous.
These layout constraints must be kept in mind when examining the content
associated with a symbol (it may be spread over multiple atoms) or when applying
certain relocation types (e.g. MachO subtractors).

This patch replaces the Atom model in JITLink with a blocks-and-symbols model.
The blocks-and-symbols model represents relocatable object files as bipartite
graphs, with one set of nodes representing contiguous content (Blocks) and
another representing named or anonymous locations (Symbols) within a Block.
Relocations are represented as edges from Blocks to Symbols. This scheme
removes layout constraints (simplifying handling of MachO alt-entry symbols,
and hopefully ELF sections at some point in the future) and simplifies some
relocation logic.

llvm-svn: 373689
2019-10-04 03:55:26 +00:00
..
bugpoint [bugpoint] Update runPasses to take ArrayRef instead of a pointer (NFC) 2019-09-30 21:00:50 +00:00
bugpoint-passes
dsymutil [dsymutil] Fix stack-use-after-scope 2019-10-04 00:39:48 +00:00
gold [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
llc [NewPM] Port MachineModuleInfo to the new pass manager. 2019-09-30 17:54:50 +00:00
lli [cmake] Link in LLVMPasses due to dependency by LLVMOrcJIT; NFC 2019-08-19 23:12:48 +00:00
llvm-ar Reapply [llvm-ar] Include a line number when failing to parse an MRI script 2019-09-20 08:10:14 +00:00
llvm-as Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC 2019-08-05 05:43:48 +00:00
llvm-as-fuzzer
llvm-bcanalyzer [llvm-bcanalyzer] Refactor and move to libLLVMBitReader 2019-07-08 02:06:34 +00:00
llvm-c-test Improve C API support for atomicrmw and cmpxchg. 2019-09-26 00:58:55 +00:00
llvm-cat Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC 2019-08-05 05:43:48 +00:00
llvm-cfi-verify [llvm-objdump] Add warning messages if disassembly + source for problematic inputs 2019-08-15 05:15:22 +00:00
llvm-config [NFC][cmake] Build fix in tools/llvm-config/CMakeLists.txt 2019-08-26 09:42:30 +00:00
llvm-cov [Alignment][NFC] Remove unneeded llvm:: scoping on Align types 2019-09-27 12:54:21 +00:00
llvm-cvtres Share /machine: handling code with llvm-cvtres too 2019-06-12 11:32:43 +00:00
llvm-cxxdump
llvm-cxxfilt [binutils] Add response file option to help and docs 2019-06-21 11:49:20 +00:00
llvm-cxxmap Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC 2019-08-05 05:43:48 +00:00
llvm-diff
llvm-dis [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
llvm-dwarfdump [llvm-dwarfdump] Fix dumping of wrong locstats map 2019-10-02 13:24:45 +00:00
llvm-dwp Recommit r368812 "[llvm/Object] - Convert SectionRef::getName() to return Expected<>" 2019-08-14 11:10:11 +00:00
llvm-elfabi [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
llvm-exegesis [llvm-exegesis][NFC] Rename ExegesisTarget::decrementLoopCounterAndLoop() 2019-10-03 07:56:56 +00:00
llvm-extract [llvm-extract] Update the help message for group extraction feature 2019-08-20 20:45:16 +00:00
llvm-go Bump llvm-go to C++14 2019-08-15 10:55:25 +00:00
llvm-ifs [TextAPI] Arch&Platform to Target 2019-09-20 14:32:34 +00:00
llvm-isel-fuzzer [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
llvm-itanium-demangle-fuzzer
llvm-jitlink [JITLink] Switch from an atom-based model to a "blocks and symbols" model. 2019-10-04 03:55:26 +00:00
llvm-jitlistener
llvm-link [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
llvm-lipo [llvm-lipo] Add support for -arch 2019-09-27 22:33:18 +00:00
llvm-lto [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
llvm-lto2 [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
llvm-mc [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
llvm-mc-assemble-fuzzer [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
llvm-mc-disassemble-fuzzer
llvm-mca [llvm-mca] Add a -mattr flag 2019-10-01 17:41:38 +00:00
llvm-microsoft-demangle-fuzzer
llvm-modextract Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC 2019-08-05 05:43:48 +00:00
llvm-mt
llvm-nm Revert [llvm-nm] Add tapi file support 2019-09-11 21:35:28 +00:00
llvm-objcopy [llvm-objcopy] Add --set-section-alignment 2019-10-02 12:41:25 +00:00
llvm-objdump [llvm-objdump] Further rearrange llvm-objdump sections for compatability 2019-10-03 22:01:08 +00:00
llvm-opt-fuzzer [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
llvm-opt-report [llvm-opt-report] Improve error handling 2019-09-13 20:52:04 +00:00
llvm-pdbutil [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
llvm-profdata [PGO] Fix typos from r359612. NFC. 2019-10-01 18:06:50 +00:00
llvm-rc [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
llvm-readobj [llvm-readobj][mips] Remove non-standard --misp-xxx flags 2019-10-03 12:08:11 +00:00
llvm-reduce llvm-reduce: Follow-up to 372280, now with more-better msan fixing 2019-09-19 20:04:04 +00:00
llvm-rtdyld Added return statement to fix compile and build warning: 2019-09-16 10:30:37 +00:00
llvm-shlib [LLVM-C] Fix omission of INSTALL_WITH_TOOLCHAIN to llvm_add_library() 2019-08-28 22:59:04 +00:00
llvm-size [llvm-size] Fix spelling errors (Berkely -> Berkeley) 2019-09-13 12:00:42 +00:00
llvm-special-case-list-fuzzer
llvm-split Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC 2019-08-05 05:43:48 +00:00
llvm-stress [llvm] Migrate llvm::make_unique to std::make_unique 2019-08-15 15:54:37 +00:00
llvm-strings [binutils] Add response file option to help and docs 2019-06-21 11:49:20 +00:00
llvm-symbolizer llvm-symbolizer: Untag addresses in object files by default. 2019-08-05 20:59:25 +00:00
llvm-undname
llvm-xray [llvm-objdump] Add warning messages if disassembly + source for problematic inputs 2019-08-15 05:15:22 +00:00
llvm-yaml-numeric-parser-fuzzer
lto [LTO][Legacy] Add new C inferface to query libcall functions 2019-09-16 18:49:54 +00:00
msbuild vs integration: bump version nbr 2019-06-19 07:39:53 +00:00
obj2yaml Recommit r373598 "[yaml2obj/obj2yaml] - Add support for SHT_LLVM_ADDRSIG sections." 2019-10-03 14:52:33 +00:00
opt [SSP] [1/3] Revert "StackProtector: Use PointerMayBeCaptured" 2019-09-30 15:01:35 +00:00
opt-viewer [llvm] [cmake] Add install targets for missing distribution components 2019-10-02 16:06:50 +00:00
remarks-shlib [Remarks] Add parser for bitstream remarks 2019-09-09 17:43:50 +00:00
sancov [sancov][NFC] Make filename Regexes "const" 2019-09-27 09:39:13 +00:00
sanstats
verify-uselistorder Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC 2019-08-05 05:43:48 +00:00
vfabi-demangle-fuzzer [SVFS] Vector Function ABI demangling. 2019-09-19 17:47:32 +00:00
xcode-toolchain
yaml2obj [yaml2obj/ObjectYAML] - Cleanup the error reporting API, add custom errors handlers. 2019-09-13 16:00:16 +00:00
CMakeLists.txt
LLVMBuild.txt [llvm-ifs][IFS] llvm Interface Stubs merging + object file generation tool. 2019-08-30 18:26:05 +00:00