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Ian McIntyre 5899278758 [llvm-objcopy] Exclude empty sections in IHexWriter output 
IHexWriter was evaluating a section's physical address when deciding if
that section should be written to an output. This approach does not
account for a zero-sized section that has the same physical address as a
sized section. The behavior varies from GNU objcopy, and may result in a
HEX file that does not include all program sections.

The IHexWriter now excludes zero-sized sections when deciding what
should be written to the output. This affects the contents of the
writer's `Sections` collection; we will not try to insert multiple
sections that could have the same physical address. The behavior seems
consistent with GNU objcopy, which always excludes empty sections,
no matter the address.

The new test case evaluates the IHexWriter behavior when provided a
variety of empty sections that overlap or append a filled section. See
the input file's comments for more information. Given that test input,
and the change to the IHexWriter, GNU objcopy and llvm-objcopy produce
the same output.

Reviewed By: jhenderson, MaskRay, evgeny777

Differential Revision: https://reviews.llvm.org/D101332
 		2021-06-12 12:23:07 -07:00
..
bugpoint Avoid shuffle self-assignment in EXPENSIVE_CHECKS builds 2021-03-10 11:17:34 +00:00
bugpoint-passes
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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
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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
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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
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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
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llvm-mca [MCA][NFCI] Minor changes to InstrBuilder and Instruction. 2021-05-31 17:05:13 +01:00
llvm-microsoft-demangle-fuzzer
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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] Exclude empty sections in IHexWriter output 2021-06-12 12:23:07 -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
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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
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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
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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
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xcode-toolchain
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yaml2obj [llvm] Make obj2yaml and yaml2obj LLVM utilities instead of tools 2020-10-19 10:21:21 -07:00
CMakeLists.txt
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