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* [llvm-objdump] Printing relocations in executable and shared object files. ↵Colin LeMahieu2016-03-211-5/+0
| | | | | | | | | | This partially reverts r215844 by removing test objdump-reloc-shared.test which stated GNU objdump doesn't print relocations, it does. In executable and shared object ELF files, relocations in the file contain the final virtual address rather than section offset so this is adjusted to display section offset. Differential revision: http://reviews.llvm.org/D15965 llvm-svn: 263971
* [yaml2obj, COFF] Correctly handle section alignmentDavid Majnemer2016-03-171-0/+14
| | | | | | | | | The section alignment field was marked optional but not provided a default value: initialize it with 0. While we are here, ensure that the section alignment is plausible. llvm-svn: 263692
* [AMDGPU] add AMDGPU target support to ELFObjectFile.h headerValery Pykhtin2016-03-093-0/+25
| | | | | | Differential Revision: http://reviews.llvm.org/D17144 llvm-svn: 263026
* [lanai] Add ELF enum value and relocations.Jacques Pienaar2016-03-012-0/+68
| | | | | | | | | | Add ELF enum value and relocations for Lanai backed. General Lanai backend discussion on llvm-dev thread "[RFC] Lanai backend" (http://lists.llvm.org/pipermail/llvm-dev/2016-February/095118.html). Differential Revision: http://reviews.llvm.org/D17008 llvm-svn: 262394
* IRObject: Mark extern_weak as weak.Rafael Espindola2016-02-291-0/+4
| | | | llvm-svn: 262222
* Represent the dynamic table itself with a DynRegionInfo.Rafael Espindola2016-02-171-1/+1
| | | | | | | | | | | | The dynamic table is also an array of a fixed structure, so it can be represented with a DynReginoInfo. No major functionality change. The extra error checking is covered by existing tests with a broken dynamic program header. Idea extracted from r260488. I did the extra cleanups. llvm-svn: 261107
* Change how readobj stores info about dynamic symbols.Rafael Espindola2016-02-172-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We used to keep both a section and a pointer to the first symbol. The oddity of keeping a section for dynamic symbols is because there is a DT_SYMTAB but no DT_SYMTABZ, so to print the table we have to find the size via a section table. The reason for still keeping a pointer to the first symbol is because we want to be able to print relocation tables even if the section table is missing (it is mandatory only for files used in linking). With this patch we keep just a DynRegionInfo. This then requires changing a few places that were asking for a Elf_Shdr but actually just needed the first symbol. The test change is to delete the program header pointer. Now that we use the information of both DT_SYMTAB and .dynsym, we don't depend on the sh_entsize of .dynsym if we see DT_SYMTAB. Note: It is questionable if it is worth it putting the effort to report broken sh_entsize given that in files with no section table we have to assume it is sizeof(Elf_Sym), but that is for another change. Extracted from r260488. llvm-svn: 261099
* Reapply r260489.Rafael Espindola2016-02-161-0/+12
| | | | | | | | | | Original commit message: [readobj] Dump DT_JMPREL relocations when outputting dynamic relocations. The bits of r260488 it depends on have been committed. llvm-svn: 260970
* Introduce a getAsRange helper.Rafael Espindola2016-02-161-1/+1
| | | | | | | | | This requires making an error message a bit more generic, but that seems a reasonable tradeoff. Extracted from r260488 but simplified a bit. llvm-svn: 260967
* This reverts commit r260488 and r260489.Rafael Espindola2016-02-164-17/+10
| | | | | | | | | | | Original messages: Revert "[readobj] Handle ELF files with no section table or with no program headers." Revert "[readobj] Dump DT_JMPREL relocations when outputting dynamic relocations." r260489 depends on r260488 and among other issues r260488 deleted error handling code. llvm-svn: 260962
* [readobj] Dump DT_JMPREL relocations when outputting dynamic relocations.Michael J. Spencer2016-02-111-0/+12
| | | | llvm-svn: 260489
* [readobj] Handle ELF files with no section table or with no program headers.Michael J. Spencer2016-02-113-10/+5
| | | | | | | | This adds support for finding the dynamic table and dynamic symbol table via the section table or the program header table. If there's no section table an attempt is made to figure out the length of the dynamic symbol table. llvm-svn: 260488
* Fix identify_magic() to check that a file that starts with MH_MAGIC isKevin Enderby2016-01-261-1/+2
| | | | | | | | | | | | at least as big as the mach header to be identified as a Mach-O file and make sure smaller files are not identified as a Mach-O files but as unknown files. Also fix identify_magic() so it looks at all 4 bytes of the filetype field when determining the type of the Mach-O file. Then fix the macho-invalid-header test case to check that it is an unknown file and make sure it does not get the error for object_error::parse_failed. And also update the unit tests. llvm-svn: 258883
* Update the comments for the macho-invalid-zero-ncmds test and fixKevin Enderby2016-01-261-2/+6
| | | | | | | | llvm-objdump when printing the Mach Header to print the unknown cputype and cpusubtype fields as decimal instead of not printing them at all. And change the test to check for that. llvm-svn: 258826
* Fix the code that leads to the incorrect trigger of the report_fatal_error()Kevin Enderby2016-01-222-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | in MachOObjectFile::getSymbolByIndex() when a Mach-O file has a symbol table load command but the number of symbols are zero. The code in MachOObjectFile::symbol_begin_impl() should not be assuming there is a symbol at index 0, in cases there is no symbol table load command or the count of symbol is zero. So I also fixed that. And needed to fix MachOObjectFile::symbol_end_impl() to also do the same thing for no symbol table or one with zero entries. The code in MachOObjectFile::getSymbolByIndex() should trigger the report_fatal_error() for programmatic errors for any index when there is no symbol table load command and not return the end iterator. So also fixed that. Note there is no test case as this is a programmatic error. The test case using the file macho-invalid-bad-symbol-index has a symbol table load command with its number of symbols (nsyms) is zero. Which was incorrectly testing the bad triggering of the report_fatal_error() in in MachOObjectFile::getSymbolByIndex(). This test case is an invalid Mach-O file but not for that reason. It appears this Mach-O file use to have an nsyms value of 11, and what makes this Mach-O file invalid is the counts and indexes into the symbol table of the dynamic load command are now invalid because the number of symbol table entries (nsyms) is now zero. Which can be seen with the existing llvm-obdump: % llvm-objdump -private-headers macho-invalid-bad-symbol-index … Load command 4 cmd LC_SYMTAB cmdsize 24 symoff 4216 nsyms 0 stroff 4392 strsize 144 Load command 5 cmd LC_DYSYMTAB cmdsize 80 ilocalsym 0 nlocalsym 8 (past the end of the symbol table) iextdefsym 8 (greater than the number of symbols) nextdefsym 2 (past the end of the symbol table) iundefsym 10 (greater than the number of symbols) nundefsym 1 (past the end of the symbol table) ... And the native darwin tools generates an error for this file: % nm macho-invalid-bad-symbol-index nm: object: macho-invalid-bad-symbol-index truncated or malformed object (ilocalsym plus nlocalsym in LC_DYSYMTAB load command extends past the end of the symbol table) I added new checks for the indexes and sizes for these in the constructor of MachOObjectFile. And added comments for what would be a proper diagnostic messages. And changed the test case using macho-invalid-bad-symbol-index to test for the new error now produced. Also added a test with a valid Mach-O file with a symbol table load command where the number of symbols is zero that shows the report_fatal_error() is not called. llvm-svn: 258576
* Fix MachOObjectFile::getSymbolName() to not call report_fatal_error()Kevin Enderby2016-01-221-1/+7
| | | | | | | | | | | but to return object_error::parse_failed.  Then made the code in llvm-nm do for Mach-O files what is done in the darwin native tools which is to print "bad string index" for bad string indexes. Updated the error message in the llvm-objdump test, and added tests to show llvm-nm prints "bad string index" and a test to print the actual bad string index value which in this case is 0xfe000002 when printing the fields as raw hex. llvm-svn: 258520
* Fix MachOObjectFile::getSymbolSection() to not call report_fatal_error()Kevin Enderby2016-01-211-2/+8
| | | | | | | | | but to return object_error::parse_failed.  Then made the code in llvm-nm do for Mach-O files what is done in the darwin native tools which is to print "(?,?)" or just "s" for bad section indexes. Also added a test to show it prints the bad section index of "42" when printing the fields as raw hex. llvm-svn: 258434
* [llvm-readobj][ELF] Teach llvm-readobj to show arch specific ELF section's flagsSimon Atanasyan2016-01-201-1/+1
| | | | | | | | | | | | | | Some architecture specific ELF section flags might have the same value (for example SHF_X86_64_LARGE and SHF_HEX_GPREL) and we have to check machine architectures to select an appropriate set of possible flags. The patch selects architecture specific flags into separate arrays `ElfxxxSectionFlags` and combines `ElfSectionFlags` and `ElfxxxSectionFlags` before pass to the `StreamWriter::printFlags()` method. Differential Revision: http://reviews.llvm.org/D16269 llvm-svn: 258334
* [llvm-readobj][ELF] Teach llvm-readobj to show dynamic relocation in REL formatSimon Atanasyan2016-01-162-0/+71
| | | | | | | | | | MIPS 32-bit ABI uses REL relocation record format to save dynamic relocations. The patch teaches llvm-readobj to show dynamic relocations in this format. Differential Revision: http://reviews.llvm.org/D16114 llvm-svn: 258001
* [llvm-readobj] Dump DT_RELACOUNT correctly.Davide Italiano2016-01-161-1/+1
| | | | llvm-svn: 257988
* Handle archives with paths in the names.Rafael Espindola2015-12-182-0/+9
| | | | | | | | | | | | | | | | We always create archives with just he filename as the member name, but other archives can put a more complicated path in there. This patches handles it by computing just the filename as we do when adding a new member. If storing the path is important for some reason, we should probably have an orthogonal option for doing that and do it for both old and new members. Fixes pr25877. llvm-svn: 256001
* Stabilize llvm/test/Object/archive-update.test a bit.NAKAMURA Takumi2015-12-071-1/+2
| | | | | | | | A manipulation (in this case, mkdir) can make slack between creating and touching %t.older/evenlen. I would make this rewrote with python if this were still unstable. llvm-svn: 254965
* Revert "Change memcpy/memset/memmove to have dest and source alignments."Pete Cooper2015-11-191-2/+2
| | | | | | | | | | This reverts commit r253511. This likely broke the bots in http://lab.llvm.org:8011/builders/clang-ppc64-elf-linux2/builds/20202 http://bb.pgr.jp/builders/clang-3stage-i686-linux/builds/3787 llvm-svn: 253543
* Change memcpy/memset/memmove to have dest and source alignments.Pete Cooper2015-11-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Note, this was reviewed (and more details are in) http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20151109/312083.html These intrinsics currently have an explicit alignment argument which is required to be a constant integer. It represents the alignment of the source and dest, and so must be the minimum of those. This change allows source and dest to each have their own alignments by using the alignment attribute on their arguments. The alignment argument itself is removed. There are a few places in the code for which the code needs to be checked by an expert as to whether using only src/dest alignment is safe. For those places, they currently take the minimum of src/dest alignments which matches the current behaviour. For example, code which used to read: call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 500, i32 8, i1 false) will now read: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 8 %dest, i8* align 8 %src, i32 500, i1 false) For out of tree owners, I was able to strip alignment from calls using sed by replacing: (call.*llvm\.memset.*)i32\ [0-9]*\,\ i1 false\) with: $1i1 false) and similarly for memmove and memcpy. I then added back in alignment to test cases which needed it. A similar commit will be made to clang which actually has many differences in alignment as now IRBuilder can generate different source/dest alignments on calls. In IRBuilder itself, a new argument was added. Instead of calling: CreateMemCpy(Dst, Src, getInt64(Size), DstAlign, /* isVolatile */ false) you now call CreateMemCpy(Dst, Src, getInt64(Size), DstAlign, SrcAlign, /* isVolatile */ false) There is a temporary class (IntegerAlignment) which takes the source alignment and rejects implicit conversion from bool. This is to prevent isVolatile here from passing its default parameter to the source alignment. Note, changes in future can now be made to codegen. I didn't change anything here, but this change should enable better memcpy code sequences. Reviewed by Hal Finkel. llvm-svn: 253511
* ELFYAML: Add support for parsing AMDGPU section attribute flagsTom Stellard2015-11-131-1/+16
| | | | | | | | | | Reviewers: silvas Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D14444 llvm-svn: 253052
* Tests: be slightly more specific to avoid conflict with path.Tim Northover2015-10-261-1/+1
| | | | llvm-svn: 251290
* [AVR] Add ELF constants to headersDylan McKay2015-10-232-0/+62
| | | | | | | | Also adds a 'trivial' ELF file. This was generated by assembling and linking a file with the symbol main which contains a single return instruction. llvm-svn: 251096
* Fix printing of 64 bit values and make test more strict.Rafael Espindola2015-10-011-12/+26
| | | | llvm-svn: 249043
* Avoid SEGFAULT if a requested symbol section is absent.Rafael Espindola2015-09-211-0/+2
| | | | | | Patch by Igor Kudrin! llvm-svn: 248194
* Fixup r248096, commit the *correct* test.Davide Italiano2015-09-191-2/+2
| | | | llvm-svn: 248097
* [obj2yaml] Fix "time of check to time of use" bug. Add a test.Davide Italiano2015-09-191-0/+3
| | | | llvm-svn: 248096
* [opaque pointer type] Add textual IR support for explicit type parameter for ↵David Blaikie2015-09-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | global aliases update.py: import fileinput import sys import re alias_match_prefix = r"(.*(?:=|:|^)\s*(?:external |)(?:(?:private|internal|linkonce|linkonce_odr|weak|weak_odr|common|appending|extern_weak|available_externally) )?(?:default |hidden |protected )?(?:dllimport |dllexport )?(?:unnamed_addr |)(?:thread_local(?:\([a-z]*\))? )?alias" plain = re.compile(alias_match_prefix + r" (.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|addrspacecast|\[\[[a-zA-Z]|\{\{).*$)") cast = re.compile(alias_match_prefix + r") ((?:bitcast|inttoptr|addrspacecast)\s*\(.* to (.*?)(| addrspace\(\d+\) *)\*\)\s*(?:;.*)?$)") gep = re.compile(alias_match_prefix + r") ((?:getelementptr)\s*(?:inbounds)?\s*\((?P<type>.*), (?P=type)(?:\s*addrspace\(\d+\)\s*)?\* .*\)\s*(?:;.*)?$)") def conv(line): m = re.match(cast, line) if m: return m.group(1) + " " + m.group(3) + ", " + m.group(2) m = re.match(gep, line) if m: return m.group(1) + " " + m.group(3) + ", " + m.group(2) m = re.match(plain, line) if m: return m.group(1) + ", " + m.group(2) + m.group(3) + "*" + m.group(4) + "\n" return line for line in sys.stdin: sys.stdout.write(conv(line)) apply.sh: for name in "$@" do python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name" rm -f "$name.tmp" done The actual commands: From llvm/src: find test/ -name *.ll | xargs ./apply.sh From llvm/src/tools/clang: find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}" From llvm/src/tools/polly: find test/ -name *.ll | xargs ./apply.sh llvm-svn: 247378
* Object: Fix COFF import file's symbols.Rui Ueyama2015-09-011-3/+3
| | | | | | | If a symbol is marked as "data", the symbol should be exported with __imp_ prefix. Previously, the symbol was exported as-is. llvm-svn: 246532
* Re-apply r246276 - Object: Teach llvm-ar to create symbol table for COFF ↵Rui Ueyama2015-08-283-0/+10
| | | | | | | | | | | short import files This patch includes a fix for a llvm-readobj test. With this patch, the tool does no longer print out COFF headers for the short import file, but that's probably desirable because the header for the short import file is dummy. llvm-svn: 246283
* Rollback r246276 - Object: Teach llvm-ar to create symbol table for COFF ↵Rui Ueyama2015-08-283-10/+0
| | | | | | | | short import files This change caused a test for llvm-readobj to fail. llvm-svn: 246277
* Object: Teach llvm-ar to create symbol table for COFF short import files.Rui Ueyama2015-08-283-0/+10
| | | | | | | | | | | | | COFF short import files are special kind of files that contains only DLL-exported symbol names. That's different from object files because it has no data except symbol names. This change implements a SymbolicFile interface for the short import files so that symbol names can be accessed through that interface. llvm-ar is now able to read the file and create symbol table entries for short import files. llvm-svn: 246276
* Report an error if a SHT_SYMTAB_SHNDX section has the wrong size.Rafael Espindola2015-08-242-0/+4
| | | | llvm-svn: 245873
* Add a test showing that objdump (and so ObjectFIle) can handle shndx.Rafael Espindola2015-08-102-0/+8
| | | | | | It was already passing, we were just not testing the code. llvm-svn: 244504
* add missing tests filesRafael Espindola2015-08-071-0/+0
| | | | llvm-svn: 244323
* Add dynamic_table iterators back to ELF.h.Rafael Espindola2015-08-072-0/+14
| | | | | | | | | In tree they are only used by llvm-readobj, but it is also used by https://github.com/mono/CppSharp. While at it, add some missing error checking. llvm-svn: 244320
* Move to llvm-readobj code that is only used there.Rafael Espindola2015-08-061-1/+1
| | | | | | | | | | lld might end up using a small part of this, but it will be in a much refactored form. For now this unblocks avoiding the full section scan in the ELFFile constructor. This also has a (very small) error handling improvement. llvm-svn: 244282
* Update comments.Rui Ueyama2015-08-061-2/+2
| | | | llvm-svn: 244259
* [COFF] Return symbol VAs instead of RVAs for PE filesReid Kleckner2015-07-313-0/+31
| | | | | | | | This makes llvm-nm consistent with binutils nm on executables and DLLs. For a vanilla hello world executable, the address of main should include the default image base of 0x400000. llvm-svn: 243755
* ELFYAML: Enable parsing of EM_AMDGPUTom Stellard2015-07-311-0/+12
| | | | | | | | Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D11263 llvm-svn: 243724
* Support printing relocations in files with no section table.Rafael Espindola2015-07-232-0/+12
| | | | llvm-svn: 242998
* Refactor duplicated code and check for invalid symbol table size.Rafael Espindola2015-07-232-0/+4
| | | | llvm-svn: 242981
* Force the gnu archive format to fix the test on darwin.Rafael Espindola2015-07-221-1/+1
| | | | llvm-svn: 242949
* Fix fetching the symbol table of a thin archive.Rafael Espindola2015-07-221-0/+11
| | | | | | We were trying to read it as an external file. llvm-svn: 242926
* Identify thin archives as archives.Rafael Espindola2015-07-221-0/+9
| | | | llvm-svn: 242921
* [Object][ELF] Handle files with no section header string table.Michael J. Spencer2015-07-212-0/+10
| | | | llvm-svn: 242839
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