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lib.systems: introduce toolchain, cc, and bintools attributes #365057
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| { lib }: | ||
| let | ||
| inherit (lib) | ||
| isAttrs | ||
| ; | ||
|
|
||
| cc = { | ||
| llvm = "clang"; | ||
| arocc = "arocc"; | ||
| zig = "zig"; | ||
| gnu = "gcc"; | ||
| default = null; | ||
| }; | ||
|
|
||
| bintools = { | ||
| llvm = "llvm"; | ||
| gnu = "gnu"; | ||
| default = null; | ||
| }; | ||
|
|
||
| cxxlib = { | ||
| llvm = "libcxx"; | ||
| gnu = "libstdcxx"; | ||
| default = null; | ||
| }; | ||
|
|
||
| cxxrtlib = { | ||
| llvm = "libcxxabi"; | ||
| gnu = { | ||
| linux = "libsupcxx"; | ||
| default = "libcxxrt"; | ||
| }; | ||
| default = null; | ||
| }; | ||
|
|
||
| unwindlib = { | ||
| llvm = { | ||
| darwin = "libunwind-system"; | ||
| default = "libunwind"; | ||
| }; | ||
| gnu = "libgcc"; | ||
| default = null; | ||
| }; | ||
|
|
||
| rtlib = { | ||
| llvm = "compiler-rt"; | ||
| gnu = "libgcc"; | ||
| default = null; | ||
| }; | ||
|
|
||
| components = { | ||
| inherit | ||
| cc | ||
| bintools | ||
| cxxlib | ||
| cxxrtlib | ||
| unwindlib | ||
| rtlib | ||
| ; | ||
| }; | ||
|
|
||
| getToolchain = | ||
| platform: | ||
| if platform.useLLVM || platform.useArocc || platform.useZig || platform.isDarwin then | ||
| "llvm" | ||
| else | ||
| # TODO: don't imply GNU when nothing else is specified. | ||
| # Return null once we allow toolchain attributes to be changed. | ||
| "gnu"; | ||
|
|
||
| chooseComponent = | ||
| componentName: platform: | ||
| let | ||
| toolchain = getToolchain platform; | ||
|
|
||
| componentSet = | ||
| components."${componentName}"."${toolchain}" or components."${componentName}".default; | ||
| in | ||
| if isAttrs componentSet then | ||
| componentSet."${platform.parsed.kernel.name}" or componentSet.default | ||
| else | ||
| componentSet; | ||
| in | ||
| components | ||
| // { | ||
| inherit chooseComponent; | ||
| } |
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I don’t think we should set these while they’re redundant to
useLLVM(since they couldn’t be any other possible value, and adjusting them won’t work, and it means that e.g.lib.systems.examples.aarch64-freebsd // { useLLVM = false; }becomes broken for no good reason).There was a problem hiding this comment.
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It's necessary for eval to work.
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Since we have
lib.systems.toolchain, we can use that to easily help clean outstdenv.hostPlatformof the toolchain attributes. Now that logic is handled outside of this file for setting the new toolchain attributes.