[gdb/testsuite] Fix valgrind-infcall-2.exp without libc debug info

When running test-case gdb.base/valgrind-infcall-2.exp on a system without
libc debug info installed, I run into:
...
(gdb) p printf ("bla")^M
'printf' has unknown return type; cast the call to its declared return type^M
(gdb) FAIL: gdb.base/valgrind-infcall-2.exp: do printf
...

Fix this by casting the result of the printf call to int.

Tested on x86_64-linux.

gdb/testsuite/ChangeLog:

2020-07-20  Tom de Vries  <tdevries@suse.de>

	* gdb.base/valgrind-infcall-2.exp: Handle printf unknown return type.

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 5b0a2dc77c9fad5d8ff8fcc8d063f17ae63dea3c..045ac0174573630176251a19341c4b773cf37fd5 100644 (file)
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2020-07-20  Tom de Vries  <tdevries@suse.de>
+
+       * gdb.base/valgrind-infcall-2.exp: Handle printf unknown return type.
+
 2020-07-20  Tom de Vries  <tdevries@suse.de>
 
        * gdb.threads/attach-slow-waitpid.exp: Bail out if gdb_start fails.

diff --git a/gdb/testsuite/gdb.base/valgrind-infcall-2.exp b/gdb/testsuite/gdb.base/valgrind-infcall-2.exp
index a3983f7564beb25d58255cc627ca17b55a14f035..9d0a6f56a65d9d7716987cb1078d9d2dfae17e2c 100644 (file)
--- a/gdb/testsuite/gdb.base/valgrind-infcall-2.exp
+++ b/gdb/testsuite/gdb.base/valgrind-infcall-2.exp
@@ -60,7 +60,7 @@ gdb_test_multiple "bt 1" "do printf" {
        # Thread status is VgTs_WaitSys
        # '
        # (gdb)
-       gdb_test "p printf (\"bla\")" \
+       gdb_test "p (int)printf (\"bla\")" \
            "can only be accepted if the thread is .*" \
            $gdb_test_name
     }