From: John Baldwin <jhb@FreeBSD.org>
Date: Tue, 22 Feb 2022 19:22:14 +0000 (-0800)
Subject: inf-ptrace: Return an IGNORE event if waitpid() fails.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=85e8c48c73a5c39a6980f9b2bd16ec96062fc4c3;p=binutils-gdb.git

inf-ptrace: Return an IGNORE event if waitpid() fails.

Previously this returned a TARGET_WAITKIND_SIGNALLED event for
inferior_ptid.  However, inferior_ptid is invalid during ::wait()
methods after the multi-target changes, so this was triggering an
assertion further up the stack.
---

diff --git a/gdb/inf-ptrace.c b/gdb/inf-ptrace.c
index 6e4706a3d20..0b94aad54d7 100644
--- a/gdb/inf-ptrace.c
+++ b/gdb/inf-ptrace.c
@@ -313,9 +313,8 @@ inf_ptrace_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus,
 			      _("Child process unexpectedly missing: %s.\n"),
 			      safe_strerror (save_errno));
 
-	  /* Claim it exited with unknown signal.  */
-	  ourstatus->set_signalled (GDB_SIGNAL_UNKNOWN);
-	  return inferior_ptid;
+	  ourstatus->set_ignore ();
+	  return minus_one_ptid;
 	}
 
       /* Ignore terminated detached child processes.  */