[gdb/testsuite] Fix gdb.base/annota1.exp on arm-linux

On arm-linux, gdb.base/annota1.exp fails:
...
PASS: gdb.base/annota1.exp: breakpoint info
run^M
^M
^Z^Zpost-prompt^M
Starting program: /home/linux/gdb/build/gdb/testsuite/outputs/gdb.base/annota1/annota1 ^M
^M
^Z^Zbreakpoints-invalid^M
^M
^Z^Zframes-invalid^M
^M
^Z^Zstarting^M
^M
^Z^Zframes-invalid^M
[Thread debugging using libthread_db enabled]^M
Using host libthread_db library "/lib/arm-linux-gnueabihf/libthread_db.so.1".^M
^M
^Z^Zbreakpoints-invalid^M
^M
^Z^Zbreakpoint 1^M
^M
Breakpoint 1, ^M
^Z^Zframe-begin 0 0x40054a^M
^M
^Z^Zframe-function-name^M
main^M
^Z^Zframe-args^M
 ()^M
^Z^Zframe-source-begin^M
 at ^M
^Z^Zframe-source-file^M
/home/linux/gdb/src/gdb/testsuite/gdb.base/annota1.c^M
^Z^Zframe-source-file-end^M
:^M
^Z^Zframe-source-line^M
15^M
^Z^Zframe-source-end^M
^M
^M
^Z^Zsource /home/linux/gdb/binutils-gdb.git/gdb/testsuite/gdb.base/annota1.c:15:103:beg:0x40054a^M
^M
^Z^Zframe-end^M
^M
^Z^Zstopped^M
^M
^Z^Zpre-prompt^M
(gdb) ^M
^Z^Zprompt^M
FAIL: gdb.base/annota1.exp: run until main breakpoint (timeout)
...
because the regexp doesn't match the first frames-invalid annotation.

Fix this by adding an optional frames-invalid annotation in the regexp.

Tested on arm-linux and x86_64-linux.

1 files changed, 2 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.base/annota1.exp b/gdb/testsuite/gdb.base/annota1.exp
index f5a253b..0388c61 100644
--- a/gdb/testsuite/gdb.base/annota1.exp
+++ b/gdb/testsuite/gdb.base/annota1.exp
@@ -159,6 +159,8 @@ set run_re \
 	 $optional_re \
 	 "\(\r\n\032\032breakpoints-invalid\r\n\)?" \
 	 $optional_re \
+	 "(\r\n\032\032frames-invalid\r\n)?" \
+	 $optional_re \
 	 "\r\n\032\032starting\r\n" \
 	 $optional_re \
 	 "\r\n\032\032frames-invalid\r\n" \