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* Demangle valueless literals LDnE (nullptr) and LA<number>_<type>E ("foo").Chris Mihelich2024-05-282-4/+49
| | | | | PiperOrigin-RevId: 637958502 Change-Id: If81eba9729c16b5d5ac7187cf74738d8aaace367
* Correctly demangle the <unresolved-name> at the end of dt and pt (x.y, x->y).Chris Mihelich2024-05-282-1/+11
| | | | | PiperOrigin-RevId: 637934582 Change-Id: Ie89b4317b11adba058dd999800e514eff49d4d69
* Demangle C++ requires-expressions without parameters (rq ... E).Chris Mihelich2024-05-242-0/+135
| | | | | PiperOrigin-RevId: 637052089 Change-Id: I8e22c2479749c05d8ca5f9e8eeba480a93da2d18
* Recognize C++ vendor extended expressions (e.g., u9__is_same...E).Chris Mihelich2024-05-242-0/+20
| | | | | PiperOrigin-RevId: 636911360 Change-Id: I525e25b90b91712b95ab7499425de85610ff9115
* Demangle the C++ this pointer (fpT).Chris Mihelich2024-05-232-3/+27
| | | | | PiperOrigin-RevId: 636695970 Change-Id: I22d6f13271ab965563f1f575d9d7ba0ed1af466d
* Stop eating an extra E in ParseTemplateArg for some L<type><value>E literals.Chris Mihelich2024-05-232-4/+12
| | | | | PiperOrigin-RevId: 636682763 Change-Id: I9e5fd6827cb780c288ff5af54643ee4fbbaca6d5
* Demangle C++ direct-list-initialization (T{1, 2, 3}, tl ... E).Chris Mihelich2024-05-232-0/+93
| | | | | PiperOrigin-RevId: 636649618 Change-Id: I73a0be3defa438daf0e9db5c34c0e2feb0e52b69
* Demangle the C++ spaceship operator (ss, operator<=>).Chris Mihelich2024-05-232-0/+23
| | | | | PiperOrigin-RevId: 636634618 Change-Id: I812115d2a33dc71446a14deadc6af019eef6dfd7
* Demangle C++ sZ encodings (sizeof...(pack)).Chris Mihelich2024-05-232-17/+64
| | | | | PiperOrigin-RevId: 636615840 Change-Id: I34f584ea0c6603a0781e874d683b516de94c6928
* Demangle C++ so ... E encodings (typically array-to-pointer decay).Chris Mihelich2024-05-232-0/+50
| | | | | PiperOrigin-RevId: 636566755 Change-Id: I2c8c1f19a67a7a487dd2bbb46c17f9fb4e2b037c
* Recognize dyn-trait-type in Rust demangling.Chris Mihelich2024-05-232-1/+104
| | | | | PiperOrigin-RevId: 636563266 Change-Id: Id4ee907c30d7dac400f1f85776cc5f1fcb3e20b7
* Recognize fn-type and lifetimes in Rust demangling.Chris Mihelich2024-05-222-4/+124
| | | | | PiperOrigin-RevId: 636152885 Change-Id: If545903854ea39cc4b5c51c88cd555072d27d89e
* Recognize inherent-impl and trait-impl in Rust demangling.Chris Mihelich2024-05-212-2/+62
| | | | | PiperOrigin-RevId: 635955480 Change-Id: I9322b4e7732e252007f6ca6c9b0cefc25974c9f8
* Recognize const and array-type in Rust mangled names.Chris Mihelich2024-05-212-2/+119
| | | | | PiperOrigin-RevId: 635938476 Change-Id: I49cba8789452f13cfeb4a24203b3b46624aa7269
* Recognize generic arguments containing only types in Rust mangled names.Chris Mihelich2024-05-212-1/+62
| | | | | | | We follow the C++ demangler in not printing the arguments, just an empty <>. PiperOrigin-RevId: 635858791 Change-Id: I24903d4c5a1e2060e92ca950bf7a61647aee655f
* Give ReturnAddresses and N<uppercase> namespaces separate stacks for clarity.Chris Mihelich2024-05-151-26/+35
| | | | | PiperOrigin-RevId: 633974603 Change-Id: I7efd0f0fadf1803aa8eacb86a18366e9a8a07df0
* Demangle Rust backrefs.Chris Mihelich2024-05-142-6/+165
| | | | | PiperOrigin-RevId: 633738511 Change-Id: I3f895d5de1aec5b5b9666523a328f3a3b0344e59
* Use Nt for struct and trait names in Rust demangler test inputs.Chris Mihelich2024-05-141-43/+43
| | | | | | | The tests work either way, but this way the inputs are more realistic. PiperOrigin-RevId: 633606944 Change-Id: I6c0440f2fceb5b8d9d4aed5818c3171d3fce2fb8
* Demangle Rust's Y<type><path> production for passably simple <type>s.Chris Mihelich2024-05-133-6/+229
| | | | | PiperOrigin-RevId: 633229582 Change-Id: Ibda908d261b52b1af766304992edd77a5bdd56b5
* Recognize some simple Rust mangled names in Demangle.Chris Mihelich2024-05-066-0/+712
| | | | | PiperOrigin-RevId: 631018414 Change-Id: Ice8efa0af4cb1f72b5d62fbbea4cb12cbead8634
* Only check if the frame pointer is inside a signal stack with known boundsAbseil Team2024-03-281-0/+2
| | | | | | | | This function previously returned true whenever the signal stack had unknown bounds, that is obviously incorrect. PiperOrigin-RevId: 620084964 Change-Id: I3821730b45773300569b9cbdb7e72442ed109d04
* `demangle`: Parse template template and C++20 lambda template param ↵Dino Radakovic2024-02-152-2/+48
| | | | | | | | | substitutions These were described in https://github.com/itanium-cxx-abi/cxx-abi/pull/85 and implemented by LLVM. PiperOrigin-RevId: 607555558 Change-Id: I9991ac88c1fcf63b25b93d93977a83ca343cdb5d
* `demangle`: Parse optional single template argument for built-in typesDino Radakovic2024-02-132-6/+45
| | | | | | | The optional single template argument for built-in types is not documented in LLVM's comments that list the grammar, but it is [intentionally implemented](https://github.com/llvm/llvm-project/commit/4bc4d51c18d5c087dfbdad1753c84bba8dbf3be0). PiperOrigin-RevId: 606843797 Change-Id: Ib5ef1983812e9ea68a39fe64b87b6ad6ce81b93c
* `demangle`: Add complexity guard to `ParseQRequiresExpr`Dino Radakovic2024-02-131-0/+2
| | | | | | | | This function copies the parser's state onto the stack in order to perform backtracking. Adding a complexity guard will ensure that it fails gracefully, instead of contributing to excessive consumption of stack space. PiperOrigin-RevId: 606720511 Change-Id: I2f6f03e5f8bc4cc571a4159ecfc2af6f3e00fa68
* `demangle`: Parse `requires` clauses on template params, before function ↵Dino Radakovic2024-02-092-17/+59
| | | | | | | | | | | | | | | | return type For example, this covers the following: ``` template <typename T> requires std::integral<T> int foo(); ``` Refactor parsing of `Q <requires-clause expr>` into a single function that performs backtracking to avoid reimplementing `ParseTemplateArgs` in terms of nested if-else blocks. PiperOrigin-RevId: 605785418 Change-Id: I118998a75e050dcf46af125b613b690312fd3cbe
* `demangle`: Parse `requires` clauses on functionsDino Radakovic2024-02-092-8/+53
| | | | | | | These clauses show up in other places that end up mangled as parts of function signatures (e.g. on template struct params). We'll handle those in a follow-up. PiperOrigin-RevId: 605694497 Change-Id: I1bfe4c0cfaa739fdd24548b1547482410c92b5a7
* `demangle`: Parse C++20-compatible template param declarations, except those ↵Dino Radakovic2024-02-082-7/+97
| | | | | | | | | with `requires` expressions Support for `requires` expressions will be added in a follow-up. PiperOrigin-RevId: 605418370 Change-Id: I2c84cdf0c4599e36683b3c94dcbb173ab4fc3ee8
* `demangle`: Implement parsing for simplest constrained template argumentsDino Radakovic2024-02-072-0/+42
| | | | | | | | | | | | | | | | | C++20 introduced constraints, where concepts such as `std::integral` can be used to restrict template parameters: ``` template <std::integral T> int foo(T t); // Only accepts integral types. ``` Clang mangles these starting with a prefix `Tk`, followed by the concept name, which mangles as a type. For example, compare `foo` and `bar` here: https://godbolt.org/z/Kzbrrchde Note that this implementation doesn't cover the more complex case where the concept is templated too. See [llvm's implementation](https://github.com/llvm/llvm-project/commit/4b163e343cfa54c8d55c9da73c70d58f55ea9df2) and its tests for a thorough version. PiperOrigin-RevId: 604976260 Change-Id: Ic116c5f6f27c3f7714638bdee8de11dce871f0be
* Always check if the new frame pointer is readable.Abseil Team2024-01-231-7/+8
| | | | | | | Terminate the stack trace if it isn't. PiperOrigin-RevId: 600839499 Change-Id: I5692fa6cb52c4c8061b4ac14d8fba70f7fbabc52
* Avoid a empty library build failure on Apple platformsDerek Mauro2024-01-031-0/+18
| | | | | | | | | | | | | | | | | | | | | https://github.com/abseil/abseil-cpp/issues/1465 reports that some CMake builds on Apply platforms issue ``` warning: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: archive library: libabsl_bad_any_cast_impl.a the table of contents is empty (no object file members in the library define global symbols) ``` Our CMake build handles this problem for header-only libraries by not building a library at all. For some libraries, for example our polyfills, the library is only conditionally empty. In these libraries, I added a single char variable on Apple platforms as a workaround. I have been able to reproduce the warnings reported in https://github.com/abseil/abseil-cpp/issues/1465, but they don't fail the build for me. I don't see them any more after this change. PiperOrigin-RevId: 595480705 Change-Id: Ie48637e84ebae2f2aea4e2de83b146f30f6a76b9
* AddressIsReadable: improve commentsFangrui Song2023-12-201-2/+4
| | | | | | | | | | | | | | | | | | | Linux kernel's rt_sigprocmask correctly handles an unaligned user address[1]. The original issue was for qemu-user, which seems long irrelevant. Tested locally on an AArch64 CPU and qemu-aarch64-static. The alignment operation actually serves another purpose: when addr resides in the last 7 bytes of a page (unaligned), check only the current page and not the next. Update the comment. [1]: kernel/signal.c `SYSCALL_DEFINE4(rt_sigprocmask` arch/arm64/include/asm/uaccess.h:raw_copy_from_user arch/arm64/lib/copy_template.S "alignment handled by the hardware" PiperOrigin-RevId: 592618320 Change-Id: Ifbd05aba42f46e36e710cca940570213036b3ce0
* Add explicit int -> uintptr_t conversion in stacktrace code for aarch64Abseil Team2023-11-081-1/+1
| | | | | PiperOrigin-RevId: 580515441 Change-Id: I64999b11f1d83d56ed3680cb2d41c8a1d5f389de
* Properly handle signal stacks and frame-size calculationsAbseil Team2023-11-071-17/+38
| | | | | | | | | | | | | We can determine the signal stack, so use that information to make better decisions about when to calculate the frame size and when not to. This fixes a several tests where the memory layout had the signal stack and main stack in position that confused some of the greater-than/less-than comparisons. Also cleanup certain types to avoid more casting than necessary. PiperOrigin-RevId: 580221819 Change-Id: I0365b03e7893741603dc66e6d36a069d0b7f5404
* With sufficiently high-levels of optimization, this functionAbseil Team2023-10-041-0/+3
| | | | | | | | | and those that call it can be inlined sufficiently far to mess up high-level skip-counts. But this function assumes it is the bottommost frame, as in the comment below. PiperOrigin-RevId: 570790048 Change-Id: I4d354f9e79e13aaa6a8a62a9e0870fbeac075de6
* Re-submit with a fix for platforms without RTTI.Abseil Team2023-10-023-33/+81
| | | | | | | We test for `ABSL_INTERNAL_HAS_RTTI` in `absl::container_internal::TypeName` before calling `typeid`. PiperOrigin-RevId: 570101013 Change-Id: I1f2f9b2f475a6beae50d0b88718b17b296311155
* Delete dead function.Abseil Team2023-09-271-10/+0
| | | | | PiperOrigin-RevId: 568858834 Change-Id: I276efa86259aa425c4b6dff27f037f488a58c9ae
* Add an internal wrapper for `abi::__cxa_demangle()`.Abseil Team2023-09-263-81/+33
| | | | | PiperOrigin-RevId: 568665135 Change-Id: I42ec9bc6cfe923777f7b60ea032c7b64428493c9
* Add an internal wrapper for `abi::__cxa_demangle()`.Abseil Team2023-09-263-33/+81
| | | | | PiperOrigin-RevId: 568652465 Change-Id: I9f72a11cb514eaf694dae589a19dc139891e7af2
* PR #1500: Define MAP_ANONYMOUS if not definedRyan Schmidt2023-08-012-2/+8
| | | | | | | | | | | | Included are additional automated edits by clang-format on import. Merge d74896699faacc4a1667603e52e72cbdc8006cf6 into 22091f4c0d6626b3ef40446ce3d4ccab19425ca3 Merging this change closes #1500 COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1500 from ryandesign:MAP_ANONYMOUS d74896699faacc4a1667603e52e72cbdc8006cf6 PiperOrigin-RevId: 552922776 Change-Id: I96a0395cb5e7156d7c7a889491c5d0b4cf755819
* Support Qualcomm Hexagon DSP targets.Abseil Team2023-06-291-1/+1
| | | | | PiperOrigin-RevId: 544438364 Change-Id: I22d461f2d0aa8638a0e640eebecdc7e5e2b49ea3
* Add missing #include <limits>Derek Mauro2023-06-201-0/+1
| | | | | | | Fixes #1482 PiperOrigin-RevId: 542023050 Change-Id: Iba712083edc9a24732a71f51be22ea970115809c
* The current aarch64 large-stack frame error handling is unsophisticated,Abseil Team2023-06-151-8/+35
| | | | | | | | | | | which makes it give up in certain situations where the x86 handler works fine This change adopts x86's more sophisticated stack-bounds-checking method for aarch64, and enables the HugeStack test to pass on aarch64. PiperOrigin-RevId: 540655431 Change-Id: If7d816330327722bbe5c135abfa77fda5e7e452b
* Fix unwinding through nested signal frames on aarch64.Abseil Team2023-06-091-4/+9
| | | | | | | | | | | | | | | This fixes an endless loop in the absl Arm stack unwinder where encountering a second signal return trampoline (as one has in nested signal frames), would restart unwinding at the outermost signal, resulting in an endless loop. This does not change any behavior in the non-nested signal case, so I believe it is safe for any stack that hasn't encountered this bug already. I would love to test this beyond the absl unwinding test cases and the fingerprint_test included here, but I'm at a loss for other test cases. PiperOrigin-RevId: 539113007 Change-Id: I10037f9fa77b45cc4db61f89b9c6380ec3529113
* Add VxWorks supportBin Lan2023-06-081-1/+2
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* Merge pull request #1455 from juergbi:solarisCopybara-Service2023-05-231-1/+1
|\ | | | | | | | | PiperOrigin-RevId: 534619764 Change-Id: Ied99569176766f9708d5504eac9c7024cdcfd64b
| * absl/debugging: Fix build on SolarisJürg Billeter2023-05-231-1/+1
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* | Migrate most RAW_LOGs and RAW_CHECKs in tests to regular LOG and CHECK.Andy Getzendanner2023-05-232-4/+4
|/ | | | | | | | | | | The non-RAW_ versions provide better output but weren't available when most of these tests were written. There are just a couple spots where RAW_ is actually needed, e.g. signal handlers and malloc hooks. Also fix a couple warnings in layout_test.cc newly surfaced because the optimizer understands CHECK_XX differently than INTERNAL_CHECK. PiperOrigin-RevId: 534584435 Change-Id: I8d36fa809ffdaae5a3813064bd602cb8611c1613
* Fix spelling mistakesVertexwahn2023-04-273-3/+3
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* Fix some spelling mistakesVertexwahn2023-04-241-1/+1
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* Properly calculate frame sizes on Aarch64Abseil Team2023-03-301-12/+15
| | | | | | | | For function N in the stack, the current code reports the size of frame N - 1. Fix that. PiperOrigin-RevId: 520688072 Change-Id: I984729f72f79aebae1b6997cb51d3ddef9199d1e
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