bsd-user: Implement host_to_target_waitstatus conversion.

Signed-off-by: Stacey Son <[email protected]> Signed-off-by: Karim Taha <[email protected]> Reviewed-by: Richard Henderson <[email protected]> Reviewed-by: Warner Losh <[email protected]> Message-Id: <[email protected]>
rnax · Oct 3, 2023 · 3f44e27 · 3f44e27
1 parent 66c51d6
commit 3f44e27
Showing 1 changed file with 17 additions and 0 deletions.
diff --git a/bsd-user/bsd-proc.c b/bsd-user/bsd-proc.c
@@ -102,3 +102,20 @@ abi_long host_to_target_wrusage(abi_ulong target_addr,
     return 0;
 }
 
+/*
+ * wait status conversion.
+ *
+ * Map host to target signal numbers for the wait family of syscalls.
+ * Assume all other status bits are the same.
+ */
+int host_to_target_waitstatus(int status)
+{
+    if (WIFSIGNALED(status)) {
+        return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
+    }
+    if (WIFSTOPPED(status)) {
+        return (host_to_target_signal(WSTOPSIG(status)) << 8) | (status & 0xff);
+    }
+    return status;
+}
+