* gdb.base/step-line.exp: Check that GDB can handle filenames that

appear in the line number info, but not in the preprocessor macro
info.

* lib/gdb.exp (gdb_internal_error_regexp): New variable.
(gdb_internal_error_resync): New procedure.
(gdb_test): If the command results in an internal error,
answer GDB's questions until we get back to a prompt.

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index cca06f27e966f70a14358679b04e3952bc6eef7b..81a54d9fc50777f463fe49d0375a5f368856ae40 100644 (file)
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,14 @@
+2002-11-22  Jim Blandy  <jimb@redhat.com>
+
+       * gdb.base/step-line.exp: Check that GDB can handle filenames that
+       appear in the line number info, but not in the preprocessor macro
+       info.
+
+       * lib/gdb.exp (gdb_internal_error_regexp): New variable.
+       (gdb_internal_error_resync): New procedure.
+        (gdb_test): If the command results in an internal error,
+        answer GDB's questions until we get back to a prompt.
+
 2002-11-21  Daniel Jacobowitz  <drow@mvista.com>
 
        * gdb.base/maint.exp (help maint dump-me): Update with typo fix.

diff --git a/gdb/testsuite/gdb.base/step-line.exp b/gdb/testsuite/gdb.base/step-line.exp
index cac3128fcec912f567a85628921c794ceaeb45e6..637f2af48a71cb2b110472f5e7ca9c97e427e4d7 100644 (file)
--- a/gdb/testsuite/gdb.base/step-line.exp
+++ b/gdb/testsuite/gdb.base/step-line.exp
@@ -53,6 +53,15 @@ gdb_test "continue" \
 gdb_test "next" \
          ".*i = f2 \\(i\\);.*" \
         "next over dummy 1"
+
+# As of Oct 2002, GCC does record the effect of #line directives in
+# the source line info, but not in macro info.  This means that GDB's
+# symtabs (built from the former, among other things) may mention
+# filenames that GDB's macro tables (built from the latter) don't have
+# any record of.  Make sure GDB can handle this by trying to evaluate
+# an expression, which will do a macro expansion.
+gdb_test "print i" ".* = 4.*" 
+
 gdb_test "next" \
          ".*dummy \\(2, i\\);.*" \
         "next to dummy 2"

diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index aae73657a5f3c4d763da85901c260fd8ab20a1ad..7be95a1a875e9a065eb441abc4911a86cd18614e 100644 (file)
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -370,6 +370,56 @@ proc gdb_continue_to_breakpoint {name} {
 }
 
 
+# A regular expression matching the output GDB produces when it
+# reports an internal error.
+set gdb_internal_error_regexp ".*A problem internal to GDB has been detected"
+
+
+# gdb_internal_error_resync TESTNAME
+#
+# Answer the questions GDB asks after it reports an internal error
+# until we get back to a GDB prompt, as part of the test named
+# TESTNAME.  Decline to quit the debugging session, and decline to
+# create a core file.
+#
+# This procedure just answers whatever questions come up until it sees
+# a GDB prompt; it doesn't require you to have matched the input up to
+# any specific point.  However, it only answers questions it sees in
+# the output itself, so if you've matched a question, you had better
+# answer it yourself before calling this.
+#
+# The variable `gdb_internal_error_regexp' is set up to match the
+# internal error message, but none of the questions that follow it, so
+# you can write code like this:
+# 
+# gdb_expect {
+#     ...
+#     -re $gdb_internal_error_regexp {
+#         gdb_internal_error_resync "$message (internal error)"
+#     }
+#     ...
+# }
+proc gdb_internal_error_resync {testname} {
+    global gdb_prompt
+
+    gdb_expect {
+        -re "Quit this debugging session\\? \\(y or n\\) $" {
+            send_gdb "n\n"
+            exp_continue
+        }
+        -re "Create a core file of GDB\\? \\(y or n\\) $" {
+            send_gdb "n\n"
+            exp_continue
+        }
+        -re "$gdb_prompt $" {
+            # We're resynchronized.
+        }
+        timeout {
+            fail "$testname (internal error resync timeout)"
+        }
+    }
+}
+  
 
 # gdb_test COMMAND PATTERN MESSAGE QUESTION RESPONSE
 # Send a command to gdb; test the result.
@@ -395,6 +445,7 @@ proc gdb_test { args } {
     global verbose
     global gdb_prompt
     global GDB
+    global gdb_internal_error_regexp
     upvar timeout timeout
 
     if [llength $args]>2 then {
@@ -477,6 +528,10 @@ proc gdb_test { args } {
        }
     }
     gdb_expect $tmt {
+         -re $gdb_internal_error_regexp {
+             fail "$message"
+             gdb_internal_error_resync "$message (internal error)"
+         }
         -re "\\*\\*\\* DOSEXIT code.*" {
             if { $message != "" } {
                 fail "$message";