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* [Object] Split the ELF interface into 3 parts.Michael J. Spencer2013-08-08
| | | | | | | | * ELFTypes.h contains template magic for defining types based on endianess, size, and alignment. * ELFFile.h defines the ELFFile class which provides low level ELF specific access. * ELFObjectFile.h contains ELFObjectFile which uses ELFFile to implement the ObjectFile interface. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188022 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for the 's' operation to llvm-ar.Rafael Espindola2013-07-29
| | | | | | | | | | | | If no other operation is specified, 's' becomes an operation instead of an modifier. The s operation just creates a symbol table. It is the same as running ranlib. We assume the archive was created by a sane ar (like llvm-ar or gnu ar) and if the symbol table is present, then it is current. We use that to optimize the most common case: a broken build system that thinks it has to run ranlib. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187353 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an initial implementation of archive symbol table generation.Rafael Espindola2013-07-23
| | | | | | | | | | | The symbol table has forward references in the file. Instead of allocating a temporary buffer or counting the size and then writing, this implementation writes a dummy value first and patches it once the final value is known. There is room for performance improvement. I will implement them as soon as I get some other features (like a ranlib mode) in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186934 91177308-0d34-0410-b5e6-96231b3b80d8
* Mark ELF's first symbol as format specific so that llvm-nm ignores it.Rafael Espindola2013-07-22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186860 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace archive members in the old position.Rafael Espindola2013-07-22
| | | | | | | | | | | | This matches gnu archive behavior and since archive member order can change which member is used, not changing the order on replacement looks like the right thing to do. This patch also refactors the logic for which archive member to keep and whether to move it to a helper function (computeInsertAction). The nesting in computeNewArchiveMembers was getting a bit confusing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186829 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't depend on a llvm-ar specific behavior.Rafael Espindola2013-07-22
| | | | | | | | GNU ar when not given the a or b modifiers replaces archive members in the same location of the old ones. I am about to implement that in llvm-ar. For now, just don't depend on the current llvm-ar behavior on this test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186823 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle replacement into a position past the original member.Rafael Espindola2013-07-21
| | | | | | | We were incorrectly computing where to insert a member if it was replacing a previous member that was before the insert point. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186792 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix inserting new elements in a specified location.Rafael Espindola2013-07-19
| | | | | | We were only handling the 'a' and 'b' options during moves before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186721 91177308-0d34-0410-b5e6-96231b3b80d8
* Split openFileForWrite into windows and unix versions.Rafael Espindola2013-07-19
| | | | | | It is similar to 186511, but for creating files for writing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186679 91177308-0d34-0410-b5e6-96231b3b80d8
* Split openFileForRead into Windows and Unix versions.Rafael Espindola2013-07-17
| | | | | | | | | | | This has some advantages: * Lets us use native, utf16 windows functions. * Easy to produce good errors on windows about trying to use a directory when we want a file. * Simplifies the unix version a bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186511 91177308-0d34-0410-b5e6-96231b3b80d8
* raw_ostream.cpp: Introduce <fcntl.h> to let O_BINARY provided. Or, ↵NAKAMURA Takumi2013-07-17
| | | | | | | | llvm::outs() would be set to O_TEXT by default. llvm/test/Object/check_binary_output.ll is expected to pass on win32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186480 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm/test/Object/ar-create.test: Relax a CHECK line to satisfy localized ↵NAKAMURA Takumi2013-07-16
| | | | | | | | message catalogue. For example, 'No such file or directory' cannot be seen on Japanese version of msvcrt. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186469 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm/test/Object/check_binary_output.ll: Mark it as XFAIL on Windows. ↵NAKAMURA Takumi2013-07-16
| | | | | | Investigating. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186468 91177308-0d34-0410-b5e6-96231b3b80d8
* On error, close the temporary file descriptor.Rafael Espindola2013-07-16
| | | | | | With this change llvm-ar can remove the temporary file on windows too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186423 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm/test/Object/directory.ll: Mark it as XFAIL:cygwin. Directories can be ↵NAKAMURA Takumi2013-07-16
| | | | | | opened on cygwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186387 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix TimeValue::toWin32Time() to be symmetric to fromWin32Time() and ↵NAKAMURA Takumi2013-07-16
| | | | | | | | | | | compatible to Win32's FILETIME. llvm-ar is the only user of toWin32Time() (via setLastModificationAndAccessTime), and r186298 can be reverted. It had been buggy since the initial commit. FIXME: Could we rename {from|to}Win32Time as {from|to}Win32FILETIME in TimeValue? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186374 91177308-0d34-0410-b5e6-96231b3b80d8
* Add mingw32 to the XFAIL. I forgot about it when adding win32.Rafael Espindola2013-07-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186365 91177308-0d34-0410-b5e6-96231b3b80d8
* XFAIL on windows too and document the XFAILs.Rafael Espindola2013-07-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186354 91177308-0d34-0410-b5e6-96231b3b80d8
* XFAIL this on freebsd to bring the bot back.Rafael Espindola2013-07-15
| | | | | | | | Joerg Sonnenberger tells me one can open a directory in freebsd. I will try to centralize our calls to open so that we can handle O_BINARY in one place, and will then handle this there too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186317 91177308-0d34-0410-b5e6-96231b3b80d8
* Mark llvm/test/Object/extract.ll as XFAIL:mingw32, for now.NAKAMURA Takumi2013-07-15
| | | | | | FIXME: Investigate Win32's TimeValue stuff! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186298 91177308-0d34-0410-b5e6-96231b3b80d8
* The archive update test has a subtle race condition in it: if the testChandler Carruth2013-07-14
| | | | | | | | | | | | | | | | | | is executed within the same second as the inputs for the test are checked out from the source tree, it will fail to update due to being below the resolution of the 'mtime' test used. Now, this may seem improbably to you... ok, maybe *really* improbable, but consider a system which does distributed execution of tests by shipping their inputs to another machine and runs them. That might cause the mtime to be quite recent during the test run. ;] Instead, create two files directly in the test (allowing all platforms to see the problem) and add either a use of the 'touch' command that forces one mtime to some time quite a bit in the past, or it sleeps for just over a second to be outside of the precision window. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186282 91177308-0d34-0410-b5e6-96231b3b80d8
* Only verify the length in archive test, we can't make assumptions on the ↵Benjamin Kramer2013-07-13
| | | | | | | | spacing. And .* did just match about anything anyways. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186246 91177308-0d34-0410-b5e6-96231b3b80d8
* Add r186216 back, but make the test tolerant of different uids and gids.Rafael Espindola2013-07-13
| | | | | | | original message: Fix a off by one error about which members need to use the string table. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186238 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert commit r186216 -- it's breaking bots:Chandler Carruth2013-07-13
| | | | | | | | | | http://lab.llvm.org:8011/builders/clang-x86_64-debian-fast/builds/6897/steps/check-all/logs/LLVM%3A%3Aarchive-format.test Original commit log: Fix a off by one error about which members need to use the string table. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186232 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a off by one error about which members need to use the string table.Rafael Espindola2013-07-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186216 91177308-0d34-0410-b5e6-96231b3b80d8
* Change archive-update.test to create a new file on the fly.Rafael Espindola2013-07-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186206 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename directory to avoid problems on windows.Rafael Espindola2013-07-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186202 91177308-0d34-0410-b5e6-96231b3b80d8
* Change llvm-ar to use lib/Object.Rafael Espindola2013-07-12
| | | | | | | | | | | | | | | | | | | | | | This fixes two bugs is lib/Object that the use in llvm-ar found: * In OS X created archives, the name can be padded with nulls. Strip them. * In the constructor, remember the first non special member and use that in begin_children. This makes sure we skip all special members, not just the first one. The change to llvm-ar itself consist of * Using lib/Object for reading archives instead of ArchiveReader.cpp. * Writing the modified archive directly, instead of creating an in memory representation. The old Archive library was way more general than what is needed, as can be seen by the diffstat of this patch. Having llvm-ar using lib/Object now opens the way for creating regular symbol tables for both native objects and bitcode files so that we can use those archives for LTO. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186197 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a test for llvm-ar's u option.Rafael Espindola2013-07-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186192 91177308-0d34-0410-b5e6-96231b3b80d8
* Relax the test a bit more to handle different UIDs and GIDs.Rafael Espindola2013-07-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186186 91177308-0d34-0410-b5e6-96231b3b80d8
* Relax test a bit to handle umask differences.Rafael Espindola2013-07-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186184 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a test for the 'o' option in llvm-ar.Rafael Espindola2013-07-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186183 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't reject an empty archive.Rafael Espindola2013-07-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186159 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm/test/Object/archive-toc.test: Use env(1) to satisfy win32 hosts.NAKAMURA Takumi2013-07-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186143 91177308-0d34-0410-b5e6-96231b3b80d8
* Add tests for the before and after modifiers.Rafael Espindola2013-07-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186118 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a test for llvm-ar's m operation.Rafael Espindola2013-07-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186110 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a FIXME about the format and add a test.Rafael Espindola2013-07-11
| | | | | | | While at it, use strftime on Unix too and use the thread safe versions of localtime. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186090 91177308-0d34-0410-b5e6-96231b3b80d8
* Merge these tests.Rafael Espindola2013-07-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186084 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a more unique name to avoid conflicting with directory.ll tests when runningRafael Espindola2013-07-11
| | | | | | in parallel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186083 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a test for llvm-ar's 'd' operation.Rafael Espindola2013-07-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186082 91177308-0d34-0410-b5e6-96231b3b80d8
* Add tests for the 'x' operation.Rafael Espindola2013-07-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186081 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove this test for now.Rafael Espindola2013-07-10
| | | | | | | It is not reliable to depend on the output of llvm_unreachable. The original change will have proper tests when llvm-ar moves to lib/Object (soon). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186043 91177308-0d34-0410-b5e6-96231b3b80d8
* Find the symbol table on archives created on OS X.Rafael Espindola2013-07-10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186041 91177308-0d34-0410-b5e6-96231b3b80d8
* Move tests from test/Archive to test/Object.Rafael Espindola2013-07-10
| | | | | | | | There is no lib/Archive anymore and some archive tests were in test/Archive and others in test/Object. Since archive is just one of the formats supported by lib/Object, test/Object is probably the best location. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186038 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't crash in 'llvm -s' when an archive has no symtab.Rafael Espindola2013-07-10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186029 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't create an archive if, for example, we are asked to print the index.Rafael Espindola2013-07-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185697 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for archives with no symbol table or string table.Rafael Espindola2013-07-04
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185664 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for gnu archives with a string table and no symtab.Rafael Espindola2013-07-03
| | | | | | While there, use early returns to reduce nesting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185547 91177308-0d34-0410-b5e6-96231b3b80d8
* Make llvm-nm return 1 on error.Rafael Espindola2013-07-03
| | | | | | | This is a small compatibility improvement with gnu nm and makes llvm-nm more useful as a testing tool. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185546 91177308-0d34-0410-b5e6-96231b3b80d8
* [yaml2obj][ELF] Make symbol table top-level key.Sean Silva2013-06-22
| | | | | | | | | Although in reality the symbol table in ELF resides in a section, the standard requires that there be no more than one SHT_SYMTAB. To enforce this constraint, it is cleaner to group all the symbols under a top-level `Symbols` key on the object file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184627 91177308-0d34-0410-b5e6-96231b3b80d8
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