[binutils-gdb] [gdb/testsuite] Fix find_core_file for core named core

[Tom de Vries <vries@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=e406987c476ebb229d04cd606bae2215386b189c

commit e406987c476ebb229d04cd606bae2215386b189c
Author: Tom de Vries <tdevries@suse.de>
Date:   Tue Nov 8 16:28:11 2022 +0100

    [gdb/testsuite] Fix find_core_file for core named core
    
    With test-case gdb.base/bigcore.exp I run into:
    ...
    (gdb) PASS: gdb.base/bigcore.exp: get inferior pid
    signal SIGABRT^M
    Continuing with signal SIGABRT.^M
    ^M
    Program terminated with signal SIGABRT, Aborted.^M
    The program no longer exists.^M
    (gdb) PASS: gdb.base/bigcore.exp: signal SIGABRT
    UNTESTED: gdb.base/bigcore.exp: can't generate a core file
    ...
    due to find_core_file returning "".
    
    There is a core file name core:
    ...
    $ ls ./outputs/gdb.base/bigcore
    bigcore  bigcore.corefile  core  gdb.cmd.1  gdb.in.1  gdbserver.cmd.1
    ...
    but it's not found.
    
    The problem is this statement:
    ...
        lappend files [list ${::testfile}.core core]
    ...
    which adds a single list item "${::testfile}.core core".
    
    Fix this in the most readable way:
    ...
        lappend files ${::testfile}.core
        lappend files core
    ...
    
    Tested on x86_64-linux.

Diff:
---
 gdb/testsuite/lib/gdb.exp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index e2cda30b95a..3e0a46445ca 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -7736,7 +7736,8 @@ proc find_core_file {pid} {
     } elseif {$pid != -1} {
 	lappend files core.$pid
     }
-    lappend files [list ${::testfile}.core core]
+    lappend files ${::testfile}.core
+    lappend files core
 
     foreach file $files {
 	if {![is_remote host]} {