[libc-commits] [libc] [libc] pipe(2) linux syscall wrapper and unittest (PR #85514)

[Nick Desaulniers via libc-commits]

================
@@ -264,6 +266,20 @@ def Linux : StandardSpec<"Linux"> {
       ]
   >;
 
+  HeaderSpec UniStd = HeaderSpec<
+    "unistd.h",
+    [], // Macros
+    [Pipe2fdArrayT], // Types
+    [], // Enumerations
+    [
+        FunctionSpec<
+          "pipe2",
+          RetValSpec<IntType>,
+          [ArgSpec<Pipe2fdArrayT>, ArgSpec<IntType>]
----------------
nickdesaulniers wrote:

Yeah, this isn't right. Just trying to build, I observe the build failure:

```
llvm-project/build/projects/libc/include/unistd.h:65:11: error: unknown type name '__pipe2fd_array_t'
   65 | int pipe2(__pipe2fd_array_t, int) __NOEXCEPT;
      |           ^
```

https://github.com/llvm/llvm-project/pull/85514