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Jonas Devlieghere b92270b149 [dsymutil] Force mmap'ing of binaries 
After the recent refactoring that introduced parallel handling of
different object, the binary holder became unique per object file. This
defeats its optimization of caching archives, leading to an archive
being opened for every binary it contains. This is obviously unfortunate
and will need to be refactored soon.

Luckily in practice, the impact of this is limited as most files are
mmap'ed instead of memcopy'd. There's a caveat however: when the memory
buffer requires a null terminator and it's a multiple of the page size,
we allocate instead of mmap'ing. If this happens for a static archive,
we end up with N copies of it in memory, where N is the number of
objects in the archive, leading to exuberant memory usage. This provided
a stopgap solution to ensure that all the files it loads are mmap in
memory by removing the requirement for a terminating null byte.

Differential revision: https://reviews.llvm.org/D48397

llvm-svn: 335293
2018-06-21 21:37:53 +00:00
..
bugpoint Refactor ExecuteAndWait to take StringRefs. 2018-06-12 17:43:52 +00:00
bugpoint-passes
dsymutil [dsymutil] Force mmap'ing of binaries 2018-06-21 21:37:53 +00:00
gold Set the code model when specified. 2018-06-13 05:53:59 +00:00
llc CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output. 2018-05-21 20:16:41 +00:00
lli [ORC] Update JITCompileCallbackManager to support multi-threaded code. 2018-05-30 01:57:45 +00:00
llvm-ar [FileSystem] Split up the OpenFlags enumeration. 2018-06-07 19:58:58 +00:00
llvm-as Define InitLLVM to do common initialization all at once. 2018-04-13 18:26:06 +00:00
llvm-as-fuzzer make add_llvm_fuzzer calls slightly more consisten with other cmake 2018-05-11 17:58:52 +00:00
llvm-bcanalyzer Fix for llvm-dis/llvm-bcanalyzer overflows 2018-06-04 19:20:02 +00:00
llvm-c-test [LLVM-C] Add DIBuilder Bindings For ObjC Classes 2018-05-21 16:27:35 +00:00
llvm-cat Pass a reference to a module to the bitcode writer. 2018-02-14 19:11:32 +00:00
llvm-cfi-verify Make llvm-cfi-verify CMakeLists.txt formatting more consistent with the rest of LLVM. 2018-05-09 01:07:02 +00:00
llvm-config Remove \brief commands from doxygen comments. 2018-05-01 15:54:18 +00:00
llvm-cov Refactor ExecuteAndWait to take StringRefs. 2018-06-12 17:43:52 +00:00
llvm-cvtres [llvm-cvtres] Allow parameters preceded by '-' in addition to '/' 2018-05-02 21:15:13 +00:00
llvm-cxxdump Define InitLLVM to do common initialization all at once. 2018-04-13 18:26:06 +00:00
llvm-cxxfilt Define InitLLVM to do common initialization all at once. 2018-04-13 18:26:06 +00:00
llvm-demangle-fuzzer make add_llvm_fuzzer calls slightly more consisten with other cmake 2018-05-11 17:58:52 +00:00
llvm-diff Let llvm-diff correctly deal with Undef/ConstantAggregateZero/ConstantVector/IndirectBr 2018-04-12 21:28:04 +00:00
llvm-dis [ThinLTO] Print module summary index to assembly 2018-05-26 02:34:13 +00:00
llvm-dwarfdump [DWARF] Improved error reporting for range lists. 2018-06-20 22:56:37 +00:00
llvm-dwp MC: Change the streamer ctors to take an object writer instead of a stream. NFCI. 2018-05-18 18:26:45 +00:00
llvm-exegesis [llvm-exegesis][NFC] Simplify BenchmarkRunner. 2018-06-21 14:49:04 +00:00
llvm-extract Define InitLLVM to do common initialization all at once. 2018-04-13 18:26:06 +00:00
llvm-go
llvm-isel-fuzzer CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output. 2018-05-21 20:16:41 +00:00
llvm-jitlistener Define InitLLVM to do common initialization all at once. 2018-04-13 18:26:06 +00:00
llvm-link [llvm-link] Use WithColor for printing errors 2018-04-18 14:41:47 +00:00
llvm-lto [ThinLTO] Rename index IsAnalysis flag to HaveGVs (NFC) 2018-06-06 22:22:01 +00:00
llvm-lto2 [LTO] Allow pass remarks with hotness to be set when emitting to stderr 2018-05-04 23:59:34 +00:00
llvm-mc [DWARFv5] llvm-mc -dwarf-version does not imply -g. 2018-06-12 16:09:03 +00:00
llvm-mc-assemble-fuzzer make add_llvm_fuzzer calls slightly more consisten with other cmake 2018-05-11 17:58:52 +00:00
llvm-mc-disassemble-fuzzer make add_llvm_fuzzer calls slightly more consisten with other cmake 2018-05-11 17:58:52 +00:00
llvm-mca [llvm-mca] Updates comment in code, and remove some stale comments. NFC 2018-06-21 12:14:49 +00:00
llvm-modextract Pass a reference to a module to the bitcode writer. 2018-02-14 19:11:32 +00:00
llvm-mt Define InitLLVM to do common initialization all at once. 2018-04-13 18:26:06 +00:00
llvm-nm Fix debug build by adding missing dependencies on libBinaryFormat 2018-05-15 00:46:43 +00:00
llvm-objcopy [llvm-objcopy] Remove unused field from Object 2018-06-07 19:41:42 +00:00
llvm-objdump [llvm-objdump] Add -R option 2018-06-07 13:30:55 +00:00
llvm-opt-fuzzer make add_llvm_fuzzer calls slightly more consisten with other cmake 2018-05-11 17:58:52 +00:00
llvm-opt-report Remove \brief commands from doxygen comments. 2018-05-01 15:54:18 +00:00
llvm-pdbutil [llvm-pdbutil] Dump struct/class/union sizes in the minimal dump format 2018-05-17 18:33:42 +00:00
llvm-profdata [NFC] Change sample profile format enum name SPF_Raw_Binary to SPF_Binary. 2018-06-12 05:53:49 +00:00
llvm-rc [FileSystem] Split up the OpenFlags enumeration. 2018-06-07 19:58:58 +00:00
llvm-readobj [llvm-readobj] Add -string-dump (-p) option 2018-06-15 14:15:02 +00:00
llvm-rtdyld Define InitLLVM to do common initialization all at once. 2018-04-13 18:26:06 +00:00
llvm-shlib [CMake] Support building shared library for Fuchsia 2018-05-17 03:39:03 +00:00
llvm-size Define InitLLVM to do common initialization all at once. 2018-04-13 18:26:06 +00:00
llvm-special-case-list-fuzzer make add_llvm_fuzzer calls slightly more consisten with other cmake 2018-05-11 17:58:52 +00:00
llvm-split Pass a reference to a module to the bitcode writer. 2018-02-14 19:11:32 +00:00
llvm-stress
llvm-strings Define InitLLVM to do common initialization all at once. 2018-04-13 18:26:06 +00:00
llvm-symbolizer [llvm-symbolizer] Simplify 2018-05-26 02:29:14 +00:00
llvm-xray Clean up some code in Program. 2018-06-08 15:16:25 +00:00
lto s/LLVM_ON_WIN32/_WIN32/, llvm 2018-04-29 00:45:03 +00:00
msbuild
obj2yaml Fix debug build by adding missing dependencies on libBinaryFormat 2018-05-15 00:46:43 +00:00
opt [Debugify] Move debug value intrinsics closer to their operand defs 2018-06-06 19:05:42 +00:00
opt-viewer [opt-viewer] Kill parser processes before moving onto rendering 2018-02-26 21:15:51 +00:00
sancov Rename sancov.cc to sancov.cpp 2018-04-25 18:06:23 +00:00
sanstats
verify-uselistorder Rename DEBUG macro to LLVM_DEBUG. 2018-05-14 12:53:11 +00:00
xcode-toolchain
yaml2obj Remove \brief commands from doxygen comments. 2018-05-01 15:54:18 +00:00
CMakeLists.txt
LLVMBuild.txt Re-land r329156 "Add llvm-exegesis tool." 2018-04-04 11:37:06 +00:00