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* Recommit "[DWARF] Add an api to get "interpreted" location lists"Pavel Labath2019-11-201-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This recommits 089c0f581492cd6e2a3d2927be3fbf60ea2d7e62, which was reverted due to failing tests on big endian machines. It includes a fix which I believe (I don't have BE machine) should fix this issue. The fix consists of correcting the invocation DWARFYAML::EmitDebugSections, which was missing one (default) function arguments, and so didn't actually force the little-endian mode. The original commit message follows. Summary: This patch adds DWARFDie::getLocations, which returns the location expressions for a given attribute (typically DW_AT_location). It handles both "inline" locations and references to the external location list sections (currently only of the DW_FORM_sec_offset type). It is implemented on top of DWARFUnit::findLoclistFromOffset, which is also added in this patch. I tried to make their signatures similar to the equivalent range list functionality. The actual location list interpretation logic is in DWARFLocationTable::visitAbsoluteLocationList. This part is not equivalent to the range list code, but this deviation is motivated by a desire to reuse the same location list parsing code within lldb. The functionality is tested via a c++ unit test of the DWARFDie API. Reviewers: dblaikie, JDevlieghere, SouraVX Subscribers: mgorny, hiraditya, cmtice, probinson, llvm-commits, aprantl Tags: #llvm Differential Revision: https://reviews.llvm.org/D70394
* Revert "[DWARF] Add an api to get "interpreted" location lists"Pavel Labath2019-11-201-4/+1
| | | | | | | The test fails on big endian machines. This reverts commit 089c0f581492cd6e2a3d2927be3fbf60ea2d7e62 and the subsequent attempt to fix in 82dc32e2d456c75d08bc9ffe97def409ee5a03cd.
* [DWARF] Add an api to get "interpreted" location listsPavel Labath2019-11-201-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | Summary: This patch adds DWARFDie::getLocations, which returns the location expressions for a given attribute (typically DW_AT_location). It handles both "inline" locations and references to the external location list sections (currently only of the DW_FORM_sec_offset type). It is implemented on top of DWARFUnit::findLoclistFromOffset, which is also added in this patch. I tried to make their signatures similar to the equivalent range list functionality. The actual location list interpretation logic is in DWARFLocationTable::visitAbsoluteLocationList. This part is not equivalent to the range list code, but this deviation is motivated by a desire to reuse the same location list parsing code within lldb. The functionality is tested via a c++ unit test of the DWARFDie API. Reviewers: dblaikie, JDevlieghere, SouraVX Subscribers: mgorny, hiraditya, cmtice, probinson, llvm-commits, aprantl Tags: #llvm Differential Revision: https://reviews.llvm.org/D70394
* Update the file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-191-4/+3
| | | | | | | | | | | | | | | | | to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
* Move helper classes into anonymous namespaces. NFCI.Benjamin Kramer2018-05-151-0/+2
| | | | llvm-svn: 332400
* Remove \brief commands from doxygen comments.Adrian Prantl2018-05-011-2/+2
| | | | | | | | | | | | | | | | We've been running doxygen with the autobrief option for a couple of years now. This makes the \brief markers into our comments redundant. Since they are a visual distraction and we don't want to encourage more \brief markers in new code either, this patch removes them all. Patch produced by for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done Differential Revision: https://reviews.llvm.org/D46290 llvm-svn: 331272
* [ObjectYAML] Add ability for DWARFYAML to calculate DIE lengthsJonas Devlieghere2018-04-201-4/+46
| | | | | | | | | | | | | | | | | | | | This patch adds the ability for the ObjectYAML DWARFEmitter to calculate the lengths of DIEs. This is accomplished by creating a DIEFixupVisitor class which traverses the DWARF DIEs to calculate and fix up the lengths in the Compile Unit header. The DIEFixupVisitor can be extended in the future to enable more complex fix ups which will enable simplified YAML string representations. This is also very useful when using the YAML format in unit tests because you no longer need to know the length of the compile unit when writing the YAML string. Differential commandeered from Chris Bieneman (beanz) Differential revision: https://reviews.llvm.org/D30666 llvm-svn: 330421
* Move helper classes into anonymous namespaces.Benjamin Kramer2017-08-201-2/+4
| | | | | | No functionality change intended. llvm-svn: 311288
* [ObjectYAML] Fix some Clang-tidy modernize and Include What You Use ↵Eugene Zelenko2017-07-011-14/+26
| | | | | | warnings; other minor fixes (NFC). llvm-svn: 306925
* Sort the remaining #include lines in include/... and lib/....Chandler Carruth2017-06-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | I did this a long time ago with a janky python script, but now clang-format has built-in support for this. I fed clang-format every line with a #include and let it re-sort things according to the precise LLVM rules for include ordering baked into clang-format these days. I've reverted a number of files where the results of sorting includes isn't healthy. Either places where we have legacy code relying on particular include ordering (where possible, I'll fix these separately) or where we have particular formatting around #include lines that I didn't want to disturb in this patch. This patch is *entirely* mechanical. If you get merge conflicts or anything, just ignore the changes in this patch and run clang-format over your #include lines in the files. Sorry for any noise here, but it is important to keep these things stable. I was seeing an increasing number of patches with irrelevant re-ordering of #include lines because clang-format was used. This patch at least isolates that churn, makes it easy to skip when resolving conflicts, and gets us to a clean baseline (again). llvm-svn: 304787
* [ObjectYAML] Add support for DWARF5 Unit headerChris Bieneman2017-03-071-2/+9
| | | | | | In DWARF5 the Unit header added a new field, UnitType, and swapped the order of the address size and abbreviation offset fields. llvm-svn: 297183
* [ObjectYAML] Support for DW_FORM_implicit_const DWARF5 formChris Bieneman2017-03-061-0/+2
| | | | | | | | This patch adds support to the DWARF YAML reader and writer for the new DWARF5 abbreviation form, DW_FORM_implicit_const. The attribute was added in r291599. llvm-svn: 297091
* [ObjectYAML] NFC. Refactor DWARFYAML CompileUnit dump codeChris Bieneman2017-03-061-122/+59
| | | | | | | | | | | | Summary: This patch refactors the DWARFYAML code for dumping compile units to use a visitor pattern. Using this design will, in the future, enable the DWARF YAML code to perform analysis and mutations of the DWARF DIEs. An example of such mutations would be calculating the length of a compile unit and updating the CU's Length field before writing the DIE. This support will make it easier to craft or modify DWARF tests by hand. Reviewers: lhames Subscribers: mgorny, fhahn, jgosnell, aprantl, llvm-commits Differential Revision: https://reviews.llvm.org/D30357 llvm-svn: 297067
* [ObjectYAML] [DWARF] Abstract DWARF Initial Length valuesChris Bieneman2017-03-031-9/+12
| | | | | | | | In the DWARF 4 Spec section 7.2.2, data in many DWARF sections, and some DWARF structures start with "Initial Length Values", which are a 32-bit length, and an optional 64-bit length if the 32 bit value == UINT32_MAX. This patch abstracts the Initial Length type in YAML, and extends its use to all the DWARF structures that are supported in the DWARFYAML code that have Initial Length values. llvm-svn: 296911
* Move symbols from the global namespace into (anonymous) namespaces. NFC.Benjamin Kramer2017-02-111-9/+10
| | | | llvm-svn: 294837
* [DWARF] [ObjectYAML] Adding APIs for unittestingChris Bieneman2017-01-201-0/+39
| | | | | | | | | | | | Summary: This patch adds some new APIs to enable using the YAML DWARF representation in unit tests. The most basic new API is DWARFYAML::EmitDebugSections which converts a YAML string into a series of owned MemoryBuffer objects stored in a StringMap. The string map can then be used to construct a DWARFContext for parsing in place of an ObjectFile. Reviewers: dblaikie, clayborg Subscribers: mgorny, fhahn, jgosnell, aprantl, llvm-commits Differential Revision: https://reviews.llvm.org/D28828 llvm-svn: 292634
* [ObjectYAML] Pull yaml2dwarf out of yaml2obj for reuseChris Bieneman2017-01-121-0/+332
This patch pulls the yaml2dwarf code out of yaml2obj into a new set of DWARF emitter functions in the DWARFYAML namespace. This will enable the YAML->DWARF code to be used inside DWARF tests by populating the DWARFYAML structs and calling the Emitter functions. llvm-svn: 291828
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