This adds the following values to the CodeView.h enums (and updates the
various functions that use them):
* CPUType:
* Added `Unknown`
* This is not currently documented in the online documentation, but this
is present in `cvconst.h` in the latest DIA SDK (Visual Studio 2022,
17.7.6)
* `Unknown` is the CPUType that is emitted by `aliasobj.exe` in the
Compile3Sym records, and can be found in objects that link with
`oldnames.lib`
* SourceLanguage (All of these are documented at
https://learn.microsoft.com/en-us/visualstudio/debugger/debug-interface-access/cv-cfl-lang?view=vs-2022
and are present in `cvconst.h` in the latest DIA SDK (Visual Studio
2022, 17.7.6))
* Added Go
* Added AliasObj
* emitted by `aliasobj.exe` in certain records, can be found in PDBs
that link with `oldnames.lib`
* Changed Swift to the official Microsoft enumeration
* Added `OldSwift`
* The old Swift enumeration of `S` was changed to `OldSwift` to allow
pdb dumping utilities to continue to emit correct source language
information for old PDBs
### WARNING
The `Swift` change is a potentially breaking change, as the swift
compiler will now emit `0x13` for the SourceLanguage type in PDB records
instead of `S`. This could potentially break utilities that relied on
the old enum value.
* CallType
* Added Swift
* This is not currently documented in the online documentation, but this
is present in `cvconst.h` in the latest DIA SDK (Visual Studio 2022,
17.7.6)
The CodeView `S_ARMSWITCHTABLE` debug symbol is used to describe the layout of a jump table, it contains the following information: * The address of the branch instruction that uses the jump table. * The address of the jump table. * The "base" address that the values in the jump table are relative to. * The type of each entry (absolute pointer, a relative integer, a relative integer that is shifted). Together this information can be used by debuggers and binary analysis tools to understand what an jump table indirect branch is doing and where it might jump to. Documentation for the symbol can be found in the Microsoft PDB library dumper: https://github.com/microsoft/microsoft-pdb/blob/0fe89a942f9a0f8e061213313e438884f4c9b876/cvdump/dumpsym7.cpp#L5518 This change adds support to LLVM to emit the `S_ARMSWITCHTABLE` debug symbol as well as to dump it out (for testing purposes). Reviewed By: efriedma Differential Revision: https://reviews.llvm.org/D149367
This reverts commit 8d0c3db388143f4e058b5f513a70fd5d089d51c3. Causes crashes, see comments in https://reviews.llvm.org/D149367. Some follow-up fixes are also reverted: This reverts commit 636269f4fca44693bfd787b0a37bb0328ffcc085. This reverts commit 5966079cf4d4de0285004eef051784d0d9f7a3a6. This reverts commit e7294dbc85d24a08c716d9babbe7f68390cf219b.
The CodeView `S_ARMSWITCHTABLE` debug symbol is used to describe the layout of a jump table, it contains the following information: * The address of the branch instruction that uses the jump table. * The address of the jump table. * The "base" address that the values in the jump table are relative to. * The type of each entry (absolute pointer, a relative integer, a relative integer that is shifted). Together this information can be used by debuggers and binary analysis tools to understand what an jump table indirect branch is doing and where it might jump to. Documentation for the symbol can be found in the Microsoft PDB library dumper: https://github.com/microsoft/microsoft-pdb/blob/0fe89a942f9a0f8e061213313e438884f4c9b876/cvdump/dumpsym7.cpp#L5518 This change adds support to LLVM to emit the `S_ARMSWITCHTABLE` debug symbol as well as to dump it out (for testing purposes). Reviewed By: efriedma Differential Revision: https://reviews.llvm.org/D149367
This patch adds llvm::codeview::SourceLanguage entries, DWARF translations, and PDB source file extensions in LLVM and allow LLDB's PDB parsers to recognize them correctly.
The CV_CFL_LANG enum in the Visual Studio 2022 documentation https://learn.microsoft.com/en-us/visualstudio/debugger/debug-interface-access/cv-cfl-lang defines:
```
CV_CFL_OBJC = 0x11,
CV_CFL_OBJCXX = 0x12,
```
Since the initial commit in D24317, ObjC was emitted as C language and ObjC++ as Masm.
Reviewed By: DavidSpickett
Differential Revision: https://reviews.llvm.org/D146221
Use deduction guides instead of helper functions.
The only non-automatic changes have been:
1. ArrayRef(some_uint8_pointer, 0) needs to be changed into ArrayRef(some_uint8_pointer, (size_t)0) to avoid an ambiguous call with ArrayRef((uint8_t*), (uint8_t*))
2. CVSymbol sym(makeArrayRef(symStorage)); needed to be rewritten as CVSymbol sym{ArrayRef(symStorage)}; otherwise the compiler is confused and thinks we have a (bad) function prototype. There was a few similar situation across the codebase.
3. ADL doesn't seem to work the same for deduction-guides and functions, so at some point the llvm namespace must be explicitly stated.
4. The "reference mode" of makeArrayRef(ArrayRef<T> &) that acts as no-op is not supported (a constructor cannot achieve that).
Per reviewers' comment, some useless makeArrayRef have been removed in the process.
This is a follow-up to https://reviews.llvm.org/D140896 that introduced
the deduction guides.
Differential Revision: https://reviews.llvm.org/D140955
This reverts commit 632a389f96355cbe7ed8fa7b8d2ed6267c92457c. This relands commit 1834a310d060d55748ca38d4ae0482864c2047d8. Differential Revision: https://reviews.llvm.org/D137493
This reverts commit 1834a310d060d55748ca38d4ae0482864c2047d8.
This was done as a test for D137302 and it makes sense to push these changes Reviewed By: dblaikie Differential Revision: https://reviews.llvm.org/D137493
Microsoft has added several new entries to the CV_CFL_LANG enum, including Rust:
https://docs.microsoft.com/en-us/visualstudio/debugger/debug-interface-access/cv-cfl-lang
This change adds Rust to the corresponding LLVM enum and translates `dwarf::DW_LANG_Rust` to `SourceLanguage::Rust` in the CodeView AsmPrinter.
This means that Rust will no longer emit as Masm.
Differential Revision: https://reviews.llvm.org/D115300