[libc-commits] [libc] [libc][wait] hard code __W_CONTINUED for SYS_waitid fallback (PR #125929)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libc

Author: Nick Desaulniers (nickdesaulniers)

<details>
<summary>Changes</summary>

riscv32 currently doesn't have SYS_wait4, so wait4 is implemented via fallback
to SYS_waitid. In #<!-- -->125572, I missed that we had one use of the removed
__W_CONTINUED value. Hard code it here.

Fixes: #<!-- -->125572


---
Full diff: https://github.com/llvm/llvm-project/pull/125929.diff


1 Files Affected:

- (modified) libc/src/sys/wait/wait4Impl.h (+1-1) 


``````````diff
diff --git a/libc/src/sys/wait/wait4Impl.h b/libc/src/sys/wait/wait4Impl.h
index 5c2cb3e8e0abf4..ec84eee491de24 100644
--- a/libc/src/sys/wait/wait4Impl.h
+++ b/libc/src/sys/wait/wait4Impl.h
@@ -65,7 +65,7 @@ LIBC_INLINE ErrorOr<pid_t> wait4impl(pid_t pid, int *wait_status, int options,
       *wait_status = W_STOPCODE(info.si_status);
       break;
     case CLD_CONTINUED:
-      *wait_status = __W_CONTINUED;
+      *wait_status = 0xffff;
       break;
     default:
       *wait_status = 0;

``````````

</details>


https://github.com/llvm/llvm-project/pull/125929