Document libdxcompiler requirements for Linux and macOS; add cargo-release configuration
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Jasper-Bekkers
approved these changes
May 5, 2021
MarijnS95
added a commit
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Jan 12, 2022
…of a panic
Not all file loading should be fallible; DXC usually invokes the loader
with multiple paths depending on relative includes, and happily accepts
and expects us to return `-2_147_024_894 // ERROR_FILE_NOT_FOUND /
0x80070002` for some. As such the precedent should be to not panic but
let DXC decide if file loading failures should be critical or simply
result in a different path being tested.
In my case though the error seems to originate from DXIL compilation
being largely untested when ran on Linux systems through the WinAadapter
codepath. In this particular stacktrace below DXC seems to "stat" (get
file information) for the current working directory, and somehow ends up
trying to open the directory as file through our include handler:
#11 dxcutil::DxcArgsFileSystemImpl::TryFindOrOpen (this=<optimized out>, this@entry=0x5570a3b0ae10, lpFileName=lpFileName@entry=0x5570a3b5d0d0 L".../hassle-rs", index=<optimized out>)
at .../DirectXShaderCompiler/tools/clang/tools/dxcompiler/dxcfilesystem.cpp:327
#12 0x00007f6e64a41a8d in dxcutil::DxcArgsFileSystemImpl::GetFileAttributesW (this=0x5570a3b0ae10, lpFileName=0x5570a3b5d0d0 L".../hassle-rs")
at .../DirectXShaderCompiler/tools/clang/tools/dxcompiler/dxcfilesystem.cpp:570
#13 0x00007f6e64a42048 in dxcutil::DxcArgsFileSystemImpl::Stat (this=0x5570a3b0ae10, lpFileName=<optimized out>, Status=0x7fff9faec1e8)
at .../DirectXShaderCompiler/tools/clang/tools/dxcompiler/dxcfilesystem.cpp:807
#14 0x00007f6e64debc91 in llvm::sys::fs::status (Path=..., Result=...) at .../DirectXShaderCompiler/lib/Support/Unix/Path.inc:385
#15 0x00007f6e64dec708 in llvm::sys::fs::current_path (result=...) at .../DirectXShaderCompiler/lib/Support/Unix/Path.inc:195
#16 0x00007f6e64e64535 in clang::CodeGen::CGDebugInfo::getCurrentDirname (this=this@entry=0x5570a3b598f0)
at .../DirectXShaderCompiler/tools/clang/lib/CodeGen/CGDebugInfo.cpp:301
#17 0x00007f6e64e6230e in clang::CodeGen::CGDebugInfo::CreateCompileUnit (this=this@entry=0x5570a3b598f0)
at .../DirectXShaderCompiler/tools/clang/lib/CodeGen/CGDebugInfo.cpp:369
This stacktrace originates from the following panic:
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 21, kind: IsADirectory, message: "Is a directory" }', src/utils.rs:51:48
MarijnS95
added a commit
that referenced
this pull request
Jan 25, 2022
…of a panic (#27) Not all file loading should be fallible; DXC usually invokes the loader with multiple paths depending on relative includes, and happily accepts and expects us to return `-2_147_024_894 // ERROR_FILE_NOT_FOUND / 0x80070002` for some. As such the precedent should be to not panic but let DXC decide if file loading failures should be critical or simply result in a different path being tested. In my case though the error seems to originate from DXIL compilation being largely untested when ran on Linux systems through the WinAadapter codepath. In this particular stacktrace below DXC seems to "stat" (get file information) for the current working directory, and somehow ends up trying to open the directory as file through our include handler: #11 dxcutil::DxcArgsFileSystemImpl::TryFindOrOpen (this=<optimized out>, this@entry=0x5570a3b0ae10, lpFileName=lpFileName@entry=0x5570a3b5d0d0 L".../hassle-rs", index=<optimized out>) at .../DirectXShaderCompiler/tools/clang/tools/dxcompiler/dxcfilesystem.cpp:327 #12 0x00007f6e64a41a8d in dxcutil::DxcArgsFileSystemImpl::GetFileAttributesW (this=0x5570a3b0ae10, lpFileName=0x5570a3b5d0d0 L".../hassle-rs") at .../DirectXShaderCompiler/tools/clang/tools/dxcompiler/dxcfilesystem.cpp:570 #13 0x00007f6e64a42048 in dxcutil::DxcArgsFileSystemImpl::Stat (this=0x5570a3b0ae10, lpFileName=<optimized out>, Status=0x7fff9faec1e8) at .../DirectXShaderCompiler/tools/clang/tools/dxcompiler/dxcfilesystem.cpp:807 #14 0x00007f6e64debc91 in llvm::sys::fs::status (Path=..., Result=...) at .../DirectXShaderCompiler/lib/Support/Unix/Path.inc:385 #15 0x00007f6e64dec708 in llvm::sys::fs::current_path (result=...) at .../DirectXShaderCompiler/lib/Support/Unix/Path.inc:195 #16 0x00007f6e64e64535 in clang::CodeGen::CGDebugInfo::getCurrentDirname (this=this@entry=0x5570a3b598f0) at .../DirectXShaderCompiler/tools/clang/lib/CodeGen/CGDebugInfo.cpp:301 #17 0x00007f6e64e6230e in clang::CodeGen::CGDebugInfo::CreateCompileUnit (this=this@entry=0x5570a3b598f0) at .../DirectXShaderCompiler/tools/clang/lib/CodeGen/CGDebugInfo.cpp:369 This stacktrace originates from the following panic: thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 21, kind: IsADirectory, message: "Is a directory" }', src/utils.rs:51:48
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cargo releasedid not bump the version inRELEASE.md, this configuration takes care of it. Furthermore links to PR commits in DXC got outdated and have been updated, and the inter-dependency between newer DXC and hassle 0.5.1 for intellisense (and vice-versa, need older DXC on 0.5.0 and below) has been documented.