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path: root/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
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* [DebugInfo][NFC] Use function_ref consistently in debug line parsingJames Henderson2020-01-021-1/+1
| | | | | | | | | | This patch fixes an inconsistency where we were using std::function in some places and function_ref in others to pass around the error handling callback. Reviewed by: MaskRay Differential Revision: https://reviews.llvm.org/D71762
* llvm-symbolizer: support DW_FORM_loclistx locations.Evgenii Stepanov2019-12-201-29/+15
| | | | | | | | | | | | | | | | Summary: With -gdwarf-5 local variable locations are emitted as DW_FORM_loclistx form instead of the regular DW_FORM_sec_offset. Teach DWARFDie::getLocations to understand the new format and use it in llvm-symbolizer "FRAME" command. Reviewers: pcc, jdoerfert Subscribers: srhines, aprantl, hiraditya, rupprecht, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70756
* [DWARF] Add support for parsing/dumping section indices in location listsPavel Labath2019-12-031-7/+8
| | | | | | | | | | | | | | | | | | | Summary: This does exactly what it says on the box. The only small gotcha is the section index computation for offset_pair entries, which can use either the base address section, or the section from the offset_pair entry. This is to support both the cases where the base address is relocated (points to the base of the CU, typically), and the case where the base address is a constant (typically zero) and relocations are on the offsets themselves. Reviewers: dblaikie, JDevlieghere, aprantl, SouraVX Subscribers: hiraditya, llvm-commits, probinson Tags: #llvm Differential Revision: https://reviews.llvm.org/D70540
* [DebugInfo] Support for debug_macinfo.dwo section in llvm and llvm-dwarfdump.Sourabh Singh Tomar2019-12-031-0/+17
| | | | | | | | | | | This patch adds support for debug_macinfo.dwo section[pre-standardized] to llvm and llvm-dwarfdump. Reviewers: probinson, dblaikie, aprantl, jini.susan.george, alok Differential Revision: https://reviews.llvm.org/D70705 Tags: #debug-info #llvm
* llvm-symbolizer: fix handling of DW_AT_specification in FRAME.Evgenii Stepanov2019-11-251-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Use getSubroutineName() to the the subrouting name; this function knows how to handle cases when DW_TAG_subprogram refers to an earlier declaration: 0x00000050: DW_TAG_subprogram DW_AT_linkage_name ("_ZN1A1fEv") DW_AT_name ("f") ... 0x00000067: DW_TAG_subprogram DW_AT_low_pc (0x0000000000000000) DW_AT_high_pc (0x0000000000000020) DW_AT_specification (0x00000050 "_ZN1A1fEv") ... 0x0000008c: DW_TAG_variable Reviewers: pcc, vitalybuka, jdoerfert Subscribers: srhines, hiraditya, rupprecht, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70630
* llvm-symbolizer: Support loclist in FRAME.Evgenii Stepanov2019-11-251-4/+56
| | | | | | | | | | | | | | | | Summary: Support location lists in FRAME command. These are used for the majority of local variables in optimized code. Also support DW_OP_breg in addition to DW_OP_fbreg when it refers to the same register as DW_AT_frame_base. Reviewers: pcc, jdoerfert Subscribers: srhines, hiraditya, rupprecht, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70629
* Recommit "[DWARF] Support for loclist.dwo section in llvm and llvm-dwarfdump."Sourabh Singh Tomar2019-11-231-0/+13
| | | | | | | | | | | The original commit message follows. This patch adds support for debug_loclists.dwo section in llvm and llvm-dwarfdump. Also Fixes PR43622, PR43623. Reviewers: dblaikie, probinson, labath, aprantl, jini.susan.george Differential Revision: https://reviews.llvm.org/D69462
* Revert "[DWARF] Support for loclist.dwo section in llvm and llvm-dwarfdump."Sourabh Singh Tomar2019-11-231-13/+0
| | | | | | This reverts commit 81b0a3284af1dcef26e56b0de9fd74002083c471. Will Re-apply, with updated Differtial Revision, for automatic closure of Phabricator review.
* [DWARF] Support for loclist.dwo section in llvm and llvm-dwarfdump.Sourabh Singh Tomar2019-11-231-0/+13
| | | | | | | | | This patch adds support for debug_loclists.dwo section in llvm and llvm-dwarfdump. Also Fixes PR43622, PR43623. Reviewers: dblaikie, probinson, labath, aprantl, jini.susan.george https://reviews.llvm.org/D69462
* [DWARFVerifier] Use the new location list apiPavel Labath2019-11-221-1/+0
| | | | | | | | | | | | | | | | | | Summary: Instead of going to the debug_loc section directly, use new DWARFDie::getLocations instead. This means that the code will now automatically support debug_loclists sections. This is the last usage of the old debug_loc methods, and they can now be removed. Reviewers: dblaikie, JDevlieghere, aprantl, SouraVX Subscribers: hiraditya, probinson, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70534
* Re-commit "DWARF location lists: Add section index dumping"Pavel Labath2019-11-181-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reapplies c0f6ad7d1f3ccb9d0b9ce9ef8dfa06409ccf1b3e with an additional fix in test/DebugInfo/X86/constant-loclist.ll, which had a slightly different output on windows targets. The test now accounts for this difference. The original commit message follows. Summary: As discussed in D70081, this adds the ability to dump section names/indices to the location list dumper. It does this by moving the range specific logic from DWARFDie.cpp:dumpRanges into the DWARFAddressRange class. The trickiest part of this patch is the backflip in the meanings of the two dump flags for the location list sections. The dumping of "raw" location list data is now controlled by "DisplayRawContents" flag. This frees up the "Verbose" flag to be used to control whether we print the section index. Additionally, the DisplayRawContents flag is set for section-based dumps whenever the --verbose option is passed, but this is not done for the "inline" dumps. Also note that the index dumping currently does not work for the DWARF v5 location lists, as the parser does not fill out the appropriate fields. This will be done in a separate patch. Reviewers: dblaikie, probinson, JDevlieghere, SouraVX Subscribers: sdardis, hiraditya, jrtc27, atanasyan, arphaman, aprantl, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70227
* Revert rGc0f6ad7d1f3c : "DWARF location lists: Add section index dumping"Simon Pilgrim2019-11-181-9/+4
| | | | This reverts commit c0f6ad7d1f3ccb9d0b9ce9ef8dfa06409ccf1b3e to fix the buildbots.
* DWARF location lists: Add section index dumpingPavel Labath2019-11-181-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: As discussed in D70081, this adds the ability to dump section names/indices to the location list dumper. It does this by moving the range specific logic from DWARFDie.cpp:dumpRanges into the DWARFAddressRange class. The trickiest part of this patch is the backflip in the meanings of the two dump flags for the location list sections. The dumping of "raw" location list data is now controlled by "DisplayRawContents" flag. This frees up the "Verbose" flag to be used to control whether we print the section index. Additionally, the DisplayRawContents flag is set for section-based dumps whenever the --verbose option is passed, but this is not done for the "inline" dumps. Also note that the index dumping currently does not work for the DWARF v5 location lists, as the parser does not fill out the appropriate fields. This will be done in a separate patch. Reviewers: dblaikie, probinson, JDevlieghere, SouraVX Subscribers: sdardis, hiraditya, jrtc27, atanasyan, arphaman, aprantl, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70227
* DWARFDebugLoc(v4): Add an incremental parsing functionPavel Labath2019-11-151-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: This adds a visitLocationList function to the DWARF v4 location lists, similar to what already exists for DWARF v5. It follows the approach outlined in previous patches (D69672), where the parsed form is always stored in the DWARF v5 format, which makes it easier for generic code to be built on top of that. v4 location lists are "upgraded" during parsing, and then this upgrade is undone while dumping. Both "inline" and section-based dumping is rewritten to reuse the existing "generic" location list dumper. This means that the output format is consistent for all location lists (the only thing one needs to implement is the function which prints the "raw" form of a location list), and that debug_loc dumping correctly processes base address selection entries, etc. The previous existing debug_loc functionality (e.g., parseOneLocationList) is rewritten on top of the new API, but it is not removed as there is still code which uses them. This will be done in follow-up patches, after I build the API to access the "interpreted" location lists in a generic way (as that is what those users really want). Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D69847
* DWARFDebugLoclists: stricter base address handlingPavel Labath2019-11-141-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | Summary: This removes the use of zero as a base address in section-based dumping. Although this will often be true for (unlinked) object files with a single compile unit, it is not true in general. This means that section-based dumping will not be able to resolve entries referencing the base address (DW_LLE_offset_pair) -- it wasn't able to do that correctly before either, but now it will be more explicit about it. One exception to that is if the location list contains an explicit DW_LLE_base_address entry -- in this case the dumper will pick it up, and resolve subsequent entries normally. The patch also removes the fallback to zero in the "inline" dumping in case the compile unit does not contain a base address. Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70115
* DWARFDebugLoclists: add location list "interpretation" logicPavel Labath2019-11-121-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: This patch extracts the logic for computing the "absolute" locations, which was partially present in the debug_loclists dumper, completes it, and moves it into a separate function. This makes it possible to later reuse the same logic for uses other than dumping. The dumper is changed to reuse the location list interpreter, and its format is changed somewhat. In "verbose" mode it prints the "raw" value of a location list, the interpreted location (if available) and the expression itself. In non-verbose mode it prints only one of the location forms: it prefers the interpreted form, but falls back to the "raw" format if interpretation is not possible (for instance, because we were not given a base address, or the resolution of indirect addresses failed). This patch also undos some of the changes made in D69672, namely the part about making all functions static. The main reason for this is that I learned that the original approach (dumping only fully resolved locations) meant that it was impossible to rewrite one of the existing tests. To make that possible (and make the "inline location" dump work in more cases), I now reuse the same dumping mechanism as is used for section-based dumping. As this required having more objects know about the various location lists classes, it seemed like a good idea to create an interface abstracting the difference between them. Therefore, I now create a DWARFLocationTable class, which will serve as a base class for the location list classes. DWARFDebugLoclists is made to inherit from that. DWARFDebugLoc will follow. Another positive effect of this change is that section-based dumping code will not need to use templates (as originally) envisioned, and that the argument lists of the dumping functions become shorter. Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70081
* DWARFDebugLoclists: Move to a incremental parsing modelPavel Labath2019-11-061-21/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: This patch stems from the discussion D68270 (including some offline talks). The idea is to provide an "incremental" api for parsing location lists, which will avoid caching or materializing parsed data. An additional goal is to provide a high level location list api, which abstracts the differences between different encoding schemes, and can be used by users which don't care about those (such as LLDB). This patch implements the first part. It implements a call-back based "visitLocationList" api. This function parses a single location list, calling a user-specified callback for each entry. This is going to be the base api, which other location list functions (right now, just the dumping code) are going to be based on. Future patches will do something similar for the v4 location lists, and add a mechanism to translate raw entries into concrete address ranges. Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D69672
* DWARFDebugLoclists: Make it possible to read relocated addressesPavel Labath2019-11-051-4/+4
| | | | | | | | | | | | | | | | | Summary: Handling relocations was not needed when the loclists section was a DWO-only thing. But since DWARF5, it is possible to use it in regular objects too, and the standard permits embedding addresses into the section directly. These addresses need to be relocated in unlinked files. Reviewers: JDevlieghere, dblaikie, probinson Subscribers: aprantl, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D68271
* [llvm/Object] - Make ELFObjectFile::getRelocatedSection return ↵George Rimar2019-10-211-1/+10
| | | | | | | | | | | | | Expected<section_iterator> It returns just a section_iterator currently and have a report_fatal_error call inside. This change adds a way to return errors and handle them on caller sides. The patch also changes/improves current users and adds test cases. Differential revision: https://reviews.llvm.org/D69167 llvm-svn: 375408
* llvm-dwarfdump: Add verbose printing for debug_loclistsDavid Blaikie2019-10-111-3/+3
| | | | llvm-svn: 374582
* llvm-dwarfdump: Support multiple debug_loclists contributionsDavid Blaikie2019-10-091-12/+16
| | | | | | | Also fixing the incorrect "offset" field being computed/printed for each location list. llvm-svn: 374232
* [llvm] Migrate llvm::make_unique to std::make_uniqueJonas Devlieghere2019-08-151-7/+7
| | | | | | | | Now that we've moved to C++14, we no longer need the llvm::make_unique implementation from STLExtras.h. This patch is a mechanical replacement of (hopefully) all the llvm::make_unique instances across the monorepo. llvm-svn: 369013
* [llvm-objdump] Add warning messages if disassembly + source for problematic ↵Michael Pozulp2019-08-151-1/+1
| | | | | | | | | | | | | | | | | | inputs Summary: Addresses https://bugs.llvm.org/show_bug.cgi?id=41905 Reviewers: jhenderson, rupprecht, grimar Reviewed By: jhenderson, grimar Subscribers: RKSimon, MaskRay, hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D62462 llvm-svn: 368963
* Recommit r368812 "[llvm/Object] - Convert SectionRef::getName() to return ↵George Rimar2019-08-141-3/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Expected<>" Changes: no changes. A fix for the clang code will be landed right on top. Original commit message: SectionRef::getName() returns std::error_code now. Returning Expected<> instead has multiple benefits. For example, it forces user to check the error returned. Also Expected<> may keep a valuable string error message, what is more useful than having a error code. (Object\invalid.test was updated to show the new messages printed.) This patch makes a change for all users to switch to Expected<> version. Note: in a few places the error returned was ignored before my changes. In such places I left them ignored. My intention was to convert the interface used, and not to improve and/or the existent users in this patch. (Though I think this is good idea for a follow-ups to revisit such places and either remove consumeError calls or comment each of them to clarify why it is OK to have them). Differential revision: https://reviews.llvm.org/D66089 llvm-svn: 368826
* Revert r368812 "[llvm/Object] - Convert SectionRef::getName() to return ↵George Rimar2019-08-141-10/+3
| | | | | | | | Expected<>" It broke clang BB: http://lab.llvm.org:8011/builders/clang-x86_64-debian-fast/builds/16455 llvm-svn: 368813
* [llvm/Object] - Convert SectionRef::getName() to return Expected<>George Rimar2019-08-141-3/+10
| | | | | | | | | | | | | | | | | | | | | | | SectionRef::getName() returns std::error_code now. Returning Expected<> instead has multiple benefits. For example, it forces user to check the error returned. Also Expected<> may keep a valuable string error message, what is more useful than having a error code. (Object\invalid.test was updated to show the new messages printed.) This patch makes a change for all users to switch to Expected<> version. Note: in a few places the error returned was ignored before my changes. In such places I left them ignored. My intention was to convert the interface used, and not to improve and/or the existent users in this patch. (Though I think this is good idea for a follow-ups to revisit such places and either remove consumeError calls or comment each of them to clarify why it is OK to have them). Differential revision: https://reviews.llvm.org/D66089 llvm-svn: 368812
* DebugInfo/DWARF: Normalize DWARFObject members on the DWARF spec section namesDavid Blaikie2019-08-071-85/+85
| | | | | | | | | Some of these names were abbreviated, some were not, some pluralised, some not. Made the API difficult to use - since it's an exact 1:1 mapping to the DWARF sections - use those names (changing underscore separation for camel casing). llvm-svn: 368189
* Switch LLVM to use 64-bit offsets (2/5)Igor Kudrin2019-08-061-43/+36
| | | | | | | | | This updates all libraries and tools in LLVM Core to use 64-bit offsets which directly or indirectly come to DataExtractor. Differential Revision: https://reviews.llvm.org/D65638 llvm-svn: 368014
* Revert "[llvm-objdump] Re-commit r367284."Michael Pozulp2019-08-051-1/+1
| | | | | | | | This reverts r367776 (git commit d34099926e909390cb0254bebb4b7f5cf15467c7). My changes to llvm-objdump tests caused them to fail on windows: http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast/builds/27368 llvm-svn: 367816
* [llvm-objdump] Re-commit r367284.Michael Pozulp2019-08-041-1/+1
| | | | | | | | | | | | | | | | | | Add warning messages if disassembly + source for problematic inputs Summary: Addresses https://bugs.llvm.org/show_bug.cgi?id=41905 Reviewers: jhenderson, rupprecht, grimar Reviewed By: jhenderson, grimar Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D62462 llvm-svn: 367776
* Revert "[llvm-objdump] Add warning messages if disassembly + source for ↵Michael Pozulp2019-07-301-1/+1
| | | | | | | | | | problematic inputs" This reverts r367284 (git commit b1cbe51bdf44098c74f5c74b7bcd8c041a7c6772). My changes to LLVMSymbolizer caused a test to fail: http://lab.llvm.org:8011/builders/clang-ppc64be-linux-lnt/builds/29488 llvm-svn: 367286
* [llvm-objdump] Add warning messages if disassembly + source for problematic ↵Michael Pozulp2019-07-301-1/+1
| | | | | | | | | | | | | | | | | | inputs Summary: Addresses https://bugs.llvm.org/show_bug.cgi?id=41905 Reviewers: jhenderson, rupprecht, grimar Reviewed By: jhenderson, grimar Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D62462 llvm-svn: 367284
* [DebugInfo] Generate fixups as emitting DWARF .debug_frame/.eh_frame.Hsiangkai Wang2019-07-191-11/+15
| | | | | | | | | | | | | It is necessary to generate fixups in .debug_frame or .eh_frame as relaxation is enabled due to the address delta may be changed after relaxation. There is an opcode with 6-bits data in debug frame encoding. So, we also need 6-bits fixup types. Differential Revision: https://reviews.llvm.org/D58335 llvm-svn: 366524
* Revert "[DebugInfo] Generate fixups as emitting DWARF .debug_frame/.eh_frame."Hsiangkai Wang2019-07-181-15/+11
| | | | | | This reverts commit 17e3cbf5fe656483d9016d0ba9e1d0cd8629379e. llvm-svn: 366444
* [DebugInfo] Generate fixups as emitting DWARF .debug_frame/.eh_frame.Hsiangkai Wang2019-07-181-11/+15
| | | | | | | | | | | | | It is necessary to generate fixups in .debug_frame or .eh_frame as relaxation is enabled due to the address delta may be changed after relaxation. There is an opcode with 6-bits data in debug frame encoding. So, we also need 6-bits fixup types. Differential Revision: https://reviews.llvm.org/D58335 llvm-svn: 366442
* [DWARF][RISCV] Add support for RISC-V relocations needed for debug infoAlex Bradbury2019-07-181-3/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When code relaxation is enabled many RISC-V fixups are not resolved but instead relocations are emitted. This happens even for DWARF debug sections. Therefore, to properly support the parsing of DWARF debug info we need to be able to resolve RISC-V relocations. This patch adds: * Support for RISC-V relocations in RelocationResolver * DWARF support for two relocations per object file offset * DWARF changes to support relocations in more DIE fields The two relocations per offset change is needed because some RISC-V relocations (used for label differences) come in pairs. Relocations can also be emitted for DWARF fields where relocations were not yet evaluated. Adding relocation support for some of these fields is essencial. On the other hand, LLVM currently emits RISC-V relocations for fixups that could be safely evaluated, since they can never be affected by code relaxations. This patch also adds relocation support for the fields affected by those extraneous relocations (the DWARF unit entry Length, and the DWARF debug line entry TotalLength and PrologueLength), for testing purposes. Differential Revision: https://reviews.llvm.org/D62062 Patch by Luís Marques. llvm-svn: 366402
* llvm-symbolizer: Add a FRAME command.Peter Collingbourne2019-06-241-0/+119
| | | | | | | | | | | | | | | | | | | This command prints a description of the referenced function's stack frame. For each formal parameter and local variable, the tool prints: - function name - variable name - file/line of declaration - FP-relative variable location (if available) - size in bytes - HWASAN tag offset This information will be used by the HWASAN runtime to identify local variables in UAR reports. Differential Revision: https://reviews.llvm.org/D63468 llvm-svn: 364225
* llvm-dwarfdump: Don't error on mixed units using/not using str_offsetsDavid Blaikie2019-05-251-4/+5
| | | | | | | | | | | This lead to errors when dumping binaries with v4 and v5 units linked together (but could've also errored on v5 units that did/didn't use str_offsets). Also improves error handling and messages around invalid str_offsets contributions. llvm-svn: 361683
* Recommit [Object] Change object::SectionRef::getContents() to return ↵Fangrui Song2019-05-161-2/+8
| | | | | | | | | | | | Expected<StringRef> r360876 didn't fix 2 call sites in clang. Expected<ArrayRef<uint8_t>> may be better but use Expected<StringRef> for now. Follow-up of D61781. llvm-svn: 360892
* Revert r360876 "[Object] Change object::SectionRef::getContents() to return ↵Hans Wennborg2019-05-161-8/+2
| | | | | | | | | | | | Expected<StringRef>" It broke the Clang build, see llvm-commits thread. > Expected<ArrayRef<uint8_t>> may be better but use Expected<StringRef> for now. > > Follow-up of D61781. llvm-svn: 360878
* [Object] Change object::SectionRef::getContents() to return Expected<StringRef>Fangrui Song2019-05-161-2/+8
| | | | | | | | Expected<ArrayRef<uint8_t>> may be better but use Expected<StringRef> for now. Follow-up of D61781. llvm-svn: 360876
* [DWARF] check whether the DIE is valid before querying for informationPaul Semel2019-04-031-0/+3
| | | | | | Differential Revision: https://reviews.llvm.org/D60147 llvm-svn: 357607
* [DWARF] Refactor RelocVisitor and fix computation of SHT_RELA-typed ↵Fangrui Song2019-03-221-7/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | relocation entries Summary: getRelocatedValue may compute incorrect value for SHT_RELA-typed relocation entries. // DWARFDataExtractor.cpp uint64_t DWARFDataExtractor::getRelocatedValue(uint32_t Size, uint32_t *Off, ... // This formula is correct for REL, but may be incorrect for RELA if the value // stored in the location (getUnsigned(Off, Size)) is not zero. return getUnsigned(Off, Size) + Rel->Value; In this patch, we * refactor these visit* functions to include a new parameter `uint64_t A`. Since these visit* functions are no longer used as visitors, rename them to resolve*. + REL: A is used as the addend. A is the value stored in the location where the relocation applies: getUnsigned(Off, Size) + RELA: The addend encoded in RelocationRef is used, e.g. getELFAddend(R) * and add another set of supports* functions to check if a given relocation type is handled. DWARFObjInMemory uses them to fail early. Reviewers: echristo, dblaikie Reviewed By: echristo Subscribers: mgorny, aprantl, aheejin, fedor.sergeev, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D57939 llvm-svn: 356729
* [DebugInfo] add SectionedAddress to DebugInfo interfaces.Alexey Lapshin2019-02-271-30/+36
| | | | | | | | | | | | | | | | | That patch is the fix for https://bugs.llvm.org/show_bug.cgi?id=40703 "wrong line number info for obj file compiled with -ffunction-sections" bug. The problem happened with only .o files. If object file contains several .text sections then line number information showed incorrectly. The reason for this is that DwarfLineTable could not detect section which corresponds to specified address(because address is the local to the section). And as the result it could not select proper sequence in the line table. The fix is to pass SectionIndex with the address. So that it would be possible to differentiate addresses from various sections. With this fix llvm-objdump shows correct line numbers for disassembled code. Differential review: https://reviews.llvm.org/D58194 llvm-svn: 354972
* 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
* [AArch64] - Return address signing dwarf supportLuke Cheeseman2018-12-181-2/+2
| | | | | | | | | | | | | | - Reapply changes intially introduced in r343089 - The archtecture info is no longer loaded whenever a DWARFContext is created - The runtimes libraries (santiziers) make use of the dwarf context classes but do not intialise the target info - The architecture of the object can be obtained without loading the target info - Adding a method to the dwarf context to get this information and multiplex the string printing later on Differential Revision: https://reviews.llvm.org/D55774 llvm-svn: 349472
* Revert r347490 as it breaks address sanitizer buildsLuke Cheeseman2018-11-231-10/+4
| | | | llvm-svn: 347499
* Revert r343341Luke Cheeseman2018-11-231-4/+10
| | | | | | | - Cannot reproduce the build failure locally and the build logs have been deleted. llvm-svn: 347490
* NFC: DebugInfo: Reduce scope of DebugOffset to simplify codeDavid Blaikie2018-11-121-31/+33
| | | | | | | | | | | This was being used as a sort of indirect out parameter from shouldDump - seems simpler to use it as the actual result of the call. (this does mean using a pointer to an Optional & actually using all 3 states (null, None, and present) which is, admittedly, a tad subtle - but given the limited scope, seems OK to me - open to discussion though, if others feel strongly about it) llvm-svn: 346691
* [DWARF] Change pubnames to use DWARFSection instead of StringRefFangrui Song2018-11-111-20/+20
| | | | | | | | | | | | | | Summary: The debug_info_offset values in .debug_{,gnu_}pub{name,types} may be relocated. Change it to DWARFSection so that we can get relocated values. Reviewers: ruiu, dblaikie, grimar, JDevlieghere Reviewed By: JDevlieghere Subscribers: aprantl, JDevlieghere, llvm-commits Differential Revision: https://reviews.llvm.org/D54375 llvm-svn: 346615
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