forked from Imagelibrary/binutils-gdb
b464e193d1
Consider the following test-case:
...
$ cat -n test.c
1 int var;
2
3 int
4 foo (void)
5 {
6 var = 1;
7 #include "test.h"
8 }
9
10 int
11 main ()
12 {
13 return foo ();
14 }
$ cat -n test.h
1 return 1;
$ gcc test.c -g
...
When stepping through the test-case, gdb doesn't make it explicit that line 1
is not in test.c:
...
Temporary breakpoint 1, main () at test.c:13
13 return foo ();
(gdb) step
foo () at test.c:6
6 var = 1;
(gdb) n
1 return 1;
(gdb)
8 }
(gdb)
...
which makes it easy to misinterpret the output.
This is with the default "print frame-info" == auto, with documented
behaviour [1]:
...
stepi will switch between source-line and source-and-location depending on the
program counter.
...
What is actually implemented is that source-line is used unless stepping into
or out of a function.
The problem can be worked around by using
"set print frame-info source-and-location", but that's a bit verbose.
Instead, change the behaviour of "print frame-info" == auto to also use
source-and-location when stepping into another file, which gets us:
...
(gdb) n
foo () at test.h:1
1 return 1;
...
Tested on x86_64-linux.
Reviewed-By: Kevin Buettner <kevinb@redhat.com>
Reviewed-By: Kévin Le Gouguec <legouguec@adacore.com>
PR gdb/32011
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=32011
[1] https://sourceware.org/gdb/current/onlinedocs/gdb.html/Print-Settings.html#index-set-print-frame_002dinfo
19 lines
761 B
C
19 lines
761 B
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2024 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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return 1;
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