[binutils-gdb] [gdb/testsuite] Fix gdb.ada/tagged-lookup.exp with gcc <= 12

[Tom de Vries]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=874f4887f0361e953f7098459ae60a5f894d362a

commit 874f4887f0361e953f7098459ae60a5f894d362a
Author: Tom de Vries <tdevries@suse.de>
Date:   Mon Mar 25 15:28:35 2024 +0100

    [gdb/testsuite] Fix gdb.ada/tagged-lookup.exp with gcc <= 12
    
    With gcc 13, test-case gdb.ada/tagged-lookup.exp passes for me, but with gcc
    12, I get:
    ...
    (gdb) set debug symtab-create 1^M
    (gdb) print *the_local_var^M
      ...
    $1 = (n => 2)^M
    (gdb) FAIL: gdb.ada/tagged-lookup.exp: only one CU expanded
    ...
    
    The problem is that this fails:
    ...
        -re -wrap ".* = \\\(n => $decimal\\\)" {
            if {$found_pck + $found_pck2 == 1} {
                pass $gdb_test_name
            } else {
                fail $gdb_test_name
            }
    ...
    because $found_pck == 0 and $found_pck2 == 0.
    
    Indeed, with gcc 13 we have:
    ...
    $ grep "start_subfile: name = .*/tagged-lookup/" gdb.log | sed 's%.*/%%'
    b~foo.adb
    b~foo.adb
    b~foo.adb
    b~foo.ads
    pck2.adb
    pck2.adb
    pck2.ads
    pck2.adb
    pck2.ads
    ...
    and with gcc 12:
    ...
    $ grep "start_subfile: name = .*/tagged-lookup/" gdb.log | sed 's%.*/%%'
    b~foo.adb
    b~foo.adb
    b~foo.adb
    b~foo.ads
    ...
    
    Fix this by checking for "$found_pck + $found_pck2 <= 1" instead.
    
    Tested on x86_64-linux.
    
    Approved-By: Tom Tromey <tom@tromey.com>
    
    PR testsuite/31514
    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31514

Diff:
---
 gdb/testsuite/gdb.ada/tagged-lookup.exp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gdb/testsuite/gdb.ada/tagged-lookup.exp b/gdb/testsuite/gdb.ada/tagged-lookup.exp
index 4bc088ba8d5..3803319c505 100644
--- a/gdb/testsuite/gdb.ada/tagged-lookup.exp
+++ b/gdb/testsuite/gdb.ada/tagged-lookup.exp
@@ -52,7 +52,7 @@ gdb_test_multiple "print *the_local_var" "only one CU expanded" -lbl {
 	exp_continue
     }
     -re -wrap ".* = \\\(n => $decimal\\\)" {
-	if {$found_pck + $found_pck2 == 1} {
+	if {$found_pck + $found_pck2 <= 1} {
 	    pass $gdb_test_name
 	} else {
 	    fail $gdb_test_name