[PATCH 1/7] libstdc++: Show full Python stack on error

[Tom Tromey]

This changes the libstdc++ test suite to arrange for gdb to show the
full Python stack if any sort of Python exception occurs.  This makes
debugging the printers a little simpler.

libstdc++-v3/ChangeLog:

        * testsuite/lib/gdb-test.exp (gdb-test): Enable Python
        stack traces from gdb.
---
 libstdc++-v3/testsuite/lib/gdb-test.exp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libstdc++-v3/testsuite/lib/gdb-test.exp 
b/libstdc++-v3/testsuite/lib/gdb-test.exp
index d8e572ef7b3..af7d970d388 100644
--- a/libstdc++-v3/testsuite/lib/gdb-test.exp
+++ b/libstdc++-v3/testsuite/lib/gdb-test.exp
@@ -141,6 +141,8 @@ proc gdb-test { marker {selector {}} {load_xmethods 0} } {
     puts $fd "set auto-load no"
     # Now that we've disabled auto-load, it's safe to set the target file
     puts $fd "file ./$output_file"
+    # See the full backtrace of any failures.
+    puts $fd "set python print-stack full"
     # Load & register *our* copy of the pretty-printers
     puts $fd "source $printer_code"
     puts $fd "python register_libstdcxx_printers(None)"
-- 
2.40.1