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David Blaikie d3ee11b29a llvm-objcopy: fix section size truncation/extension when dumping sections 
Since this only comes up with inputs containing sections at least 4GB
large (I guess I could use a bzero section or something, so the input
file doesn't have to be 4GB, but even then the output file would have to
be 4GB, right?) I've skipped testing this. If there's a nice way to test
this without needing 4GB inputs or output files.

The subtlety here is demonstrated by this code:

struct t { operator uint64_t(); };
static_assert(std::is_same_v<int, decltype(std::declval<bool>() ? 0 : std::declval<t>())>);
static_assert(std::is_same_v<uint64_t, decltype(std::declval<bool>() ? 0 : std::declval<uint64_t>())>);

Because of this difference, the original source code was getting an int
type (truncating the actual size) and then extending it again, resulting
in bogus values (I haven't thought through this hard enough to explain
why the resulting value was 0xffff... - sign extension, possible UB, but
in any case it's the wrong answer - in this particular case I was
looking at that resulted in a size so large that we couldn't open a file
large enough to write to and ended up with a rather vague:

error: 'file_name.o': Invalid argument
2021-06-12 19:00:10 -07:00
..
bugpoint Avoid shuffle self-assignment in EXPENSIVE_CHECKS builds 2021-03-10 11:17:34 +00:00
bugpoint-passes
dsymutil [dsymutil] Emit an error when the Mach-O exceeds the 4GB limit. 2021-05-24 16:29:06 -07:00
gold [gold] Match lld WPD behavior for shared library symbols and add test 2021-02-17 15:28:49 -08:00
llc Recommit "[VP,Integer,#2] ExpandVectorPredication pass" 2021-05-04 11:47:52 +02:00
lli [lli] Honor the --entry-function flag in orc and orc-lazy modes. 2021-04-13 11:33:24 -07:00
llvm-ar [NFC] Reordering parameters in getFile and getFileOrSTDIN 2021-03-25 09:47:49 -04:00
llvm-as llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-as-fuzzer
llvm-bcanalyzer llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-c-test [ADT] Move DenseMapInfo for ArrayRef/StringRef into respective headers (NFC) 2021-06-03 18:34:36 +02:00
llvm-cat [tools] Use llvm::append_range (NFC) 2021-01-05 21:15:56 -08:00
llvm-cfi-verify [MC] Refactor MCObjectFileInfo initialization and allow targets to create MCObjectFileInfo 2021-05-23 14:15:23 -07:00
llvm-config [MinGW] Use lib prefix for libraries 2020-09-12 22:01:29 +03:00
llvm-cov [Coverage] Support overriding compilation directory 2021-05-11 15:26:45 -07:00
llvm-cvtres [llvm-cvtres] Reduce the set of dependencies of llvm-cvtres. NFC. 2021-04-21 11:50:10 +03:00
llvm-cxxdump llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-cxxfilt [demangler] Initial support for the new Rust mangling scheme 2021-05-03 16:44:30 -07:00
llvm-cxxmap [Support] Don't include VirtualFileSystem.h in CommandLine.h 2021-04-21 10:19:01 -04:00
llvm-diff Switch from llvm::is_trivially_copyable to std::is_trivially_copyable 2020-12-02 22:02:48 -08:00
llvm-dis Allow llvm-dis to disassemble multiple files 2021-05-06 11:08:55 -07:00
llvm-dwarfdump [llvm-dwarfdump][test] Add missing dedicated tests for some options 2021-06-01 14:57:00 +01:00
llvm-dwp [llvm-dwp] Add support for rnglists and loclists 2021-06-02 12:31:35 -07:00
llvm-elfabi [llvm-elfabi] Add flag to preserve timestamp when output is the same 2020-12-29 20:27:06 -08:00
llvm-exegesis [ADT] Remove APInt/APSInt toString() std::string variants 2021-06-11 13:19:15 +01:00
llvm-extract llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-go
llvm-gsymutil Add --quiet option to llvm-gsymutil to suppress output of warnings. 2021-05-27 12:36:34 +00:00
llvm-ifs [SystemZ][z/OS] Add IsText Argument to GetFile and GetFileOrSTDIN 2021-04-16 10:08:36 -04:00
llvm-isel-fuzzer [AIX] Turn -fdata-sections on by default in Clang 2020-10-14 15:58:31 +00:00
llvm-itanium-demangle-fuzzer
llvm-jitlink [MC] Refactor MCObjectFileInfo initialization and allow targets to create MCObjectFileInfo 2021-05-23 14:15:23 -07:00
llvm-jitlistener [MCJIT] Profile the code generated by MCJIT engine using Intel VTune profiler 2020-11-16 19:28:14 +11:00
llvm-libtool-darwin [Support] Don't include VirtualFileSystem.h in CommandLine.h 2021-04-21 10:19:01 -04:00
llvm-link NFC: Run clang-format over llvm-link. 2021-04-28 14:33:00 -07:00
llvm-lipo [TextAPI] move source code files out of subdirectory, NFC 2021-04-05 10:24:42 -07:00
llvm-lto [LTO] Support new PM in ThinLTOCodeGenerator. 2021-06-09 10:05:14 +01:00
llvm-lto2 Don't use $ as suffix for symbol names in ThinLTOBitcodeWriter and other places 2021-03-29 13:03:52 +02:00
llvm-mc [llvm-mc] Add -M to replace -riscv-no-aliases and -riscv-arch-reg-names 2021-05-26 10:43:32 -07:00
llvm-mc-assemble-fuzzer [MC] Refactor MCObjectFileInfo initialization and allow targets to create MCObjectFileInfo 2021-05-23 14:15:23 -07:00
llvm-mc-disassemble-fuzzer
llvm-mca [MCA][NFCI] Minor changes to InstrBuilder and Instruction. 2021-05-31 17:05:13 +01:00
llvm-microsoft-demangle-fuzzer
llvm-ml [ms] [llvm-ml] Add support for INCLUDE environment variable 2021-06-09 17:54:40 -04:00
llvm-modextract llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-mt llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-nm [llvm-nm] Support the -V option, print that the tool is compatible with GNU nm 2021-05-13 22:36:25 +03:00
llvm-objcopy llvm-objcopy: fix section size truncation/extension when dumping sections 2021-06-12 19:00:10 -07:00
llvm-objdump [XCOFF][AIX] Enable tooling support for 64 bit symbol table parsing 2021-06-07 17:24:13 +00:00
llvm-opt-fuzzer [NewPM] Hide pass manager debug logging behind -debug-pass-manager-verbose 2021-05-07 21:51:47 -07:00
llvm-opt-report [SystemZ][z/OS][Windows] Add new OF_TextWithCRLF flag and use this flag instead of OF_Text 2021-04-06 07:23:31 -04:00
llvm-pdbutil [ADT] Remove APInt/APSInt toString() std::string variants 2021-06-11 13:19:15 +01:00
llvm-profdata [SampleFDO] New hierarchical discriminator for FS SampleFDO (llvm-profdata part) 2021-06-04 11:22:06 -07:00
llvm-profgen [CSSPGO][llvm-profgen] Make extended binary the default output format 2021-06-03 17:58:16 -07:00
llvm-rc [llvm-rc] Add a GNU windres-like frontend to llvm-rc 2021-04-26 22:04:29 +03:00
llvm-readobj Reland "[AMDGPU] Add gfx1013 target" 2021-06-08 21:15:35 -04:00
llvm-reduce [llvm-reduce] Exit when input module is malformed 2021-05-25 10:01:12 -07:00
llvm-rtdyld [MC] Refactor MCObjectFileInfo initialization and allow targets to create MCObjectFileInfo 2021-05-23 14:15:23 -07:00
llvm-rust-demangle-fuzzer Fix implicit dependency on <string> header. NFCI. 2021-06-11 10:24:14 +01:00
llvm-shlib [CMake][ELF] Link libLLVM.so and libclang-cpp.so with -Bsymbolic-functions 2021-05-13 13:44:57 -07:00
llvm-size [llvm-cov] Use is_contained (NFC) 2020-12-27 09:57:25 -08:00
llvm-special-case-list-fuzzer
llvm-split [LTO] Update splitCodeGen to take a reference to the module. (NFC) 2021-01-29 11:53:11 +00:00
llvm-stress [llvm-stress] Fix dead code preventing us generating per-element vector selects 2021-06-11 10:56:19 +01:00
llvm-strings llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-symbolizer [llvm-symbolizer] Place Mach-O options into the Mach-O option group. 2021-05-12 12:04:54 +01:00
llvm-tapi-diff Reland "[llvm] llvm-tapi-diff" 2021-06-09 21:17:34 -07:00
llvm-undname llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-xray xray-color-helper.cpp - add missing implicit cmath header dependency. NFCI. 2021-06-05 21:33:24 +01:00
llvm-yaml-numeric-parser-fuzzer [llvm] NFC: Cleanup llvm-yaml-numeric-parser-fuzzer 2021-02-15 14:52:53 +01:00
llvm-yaml-parser-fuzzer [llvm] Use llvm::erase_value and llvm::erase_if (NFC) 2021-01-02 09:24:15 -08:00
lto [AIX] Build libLTO as MODULE rather than SHARED 2021-06-10 12:08:59 -04:00
msbuild
obj2yaml [XCOFF][AIX] Enable tooling support for 64 bit symbol table parsing 2021-06-07 17:24:13 +00:00
opt [NewPM] Add options to PrintPassInstrumentation 2021-05-18 20:59:35 -07:00
opt-viewer
remarks-shlib [tools][remarks-shlib] Don't build libRemarks.so without PIC 2020-09-20 12:40:21 +02:00
sancov [MC] Refactor MCObjectFileInfo initialization and allow targets to create MCObjectFileInfo 2021-05-23 14:15:23 -07:00
sanstats [NFC] Reordering parameters in getFile and getFileOrSTDIN 2021-03-25 09:47:49 -04:00
split-file NFC: .clang-tidy: Inherit configs from parents to improve maintainability 2021-06-08 08:25:59 -07:00
verify-uselistorder [SystemZ][z/OS][Windows] Add new OF_TextWithCRLF flag and use this flag instead of OF_Text 2021-04-06 07:23:31 -04:00
vfabi-demangle-fuzzer
xcode-toolchain
yaml2obj [llvm] Make obj2yaml and yaml2obj LLVM utilities instead of tools 2020-10-19 10:21:21 -07:00
CMakeLists.txt