[PATCH 04/05] jit.exp: Verify the exit status of the spawnee

[David Malcolm]

gcc/testsuite/ChangeLog:
        * jit.dg/jit.exp (verify_exit_status): New function.
        (fixed_host_execute): Verify the exit status of the spawnee.
---
 gcc/testsuite/jit.dg/jit.exp | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/gcc/testsuite/jit.dg/jit.exp b/gcc/testsuite/jit.dg/jit.exp
index 2edd048..a37ccc7 100644
--- a/gcc/testsuite/jit.dg/jit.exp
+++ b/gcc/testsuite/jit.dg/jit.exp
@@ -65,6 +65,35 @@ proc parse_valgrind_logfile {name logfile} {
     close $f
 }
 
+# Given WRES, the result from "wait", issue a PASS
+# if the spawnee exited cleanly, or a FAIL for various kinds of
+# unexpected exits.
+
+proc verify_exit_status { executable wres } {
+    lassign $wres pid spawnid os_error_flag value
+    verbose "pid: $pid" 3
+    verbose "spawnid: $spawnid" 3
+    verbose "os_error_flag: $os_error_flag" 3
+    verbose "value: $value" 3
+
+    # Detect segfaults etc:
+    if { [llength $wres] > 4 } {
+       if { [lindex $wres 4] == "CHILDKILLED" } {
+           fail "$executable killed: $wres"
+           return
+       }
+    }
+    if { $os_error_flag != 0 } {
+       fail "$executable: OS error: $wres"
+       return
+    }
+    if { $value != 0 } {
+       fail "$executable: non-zero exit code: $wres"
+       return
+    }
+    pass "$executable exited cleanly"
+}
+
 # This is host_execute from dejagnu.exp commit
 #   126a089777158a7891ff975473939f08c0e31a1c
 # with the following patch applied, and renaming to "fixed_host_execute".
@@ -214,6 +243,7 @@ proc fixed_host_execute {args} {
 
     catch wait wres
     verbose "wres: $wres" 2
+    verify_exit_status $executable $wres
 
     if $run_under_valgrind {
        upvar 2 name name
-- 
1.8.5.3