forked from Imagelibrary/binutils-gdb
2aaba74446
On arm-linux, with a started hello world, running "info frame" works fine, but
when I set debug frame to on, I run into:
...
(gdb) info frame
...
[frame] frame_unwind_register_value: exit
value is not available
(gdb)
...
The problem is here in frame_unwind_register_value:
...
if (value->lazy ())
gdb_printf (&debug_file, " lazy");
else
{
int i;
gdb::array_view<const gdb_byte> buf = value->contents ();
...
where we call value->contents () while !value->entirely_available ().
Fix this by checking value->entirely_available () and printing:
...
[frame] frame_unwind_register_value: -> register=91 unavailable
...
Tested on arm-linux.
PR gdb/31369
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31369
58 lines
1.8 KiB
Plaintext
58 lines
1.8 KiB
Plaintext
# 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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#
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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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#
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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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# Test relies on checking gdb debug output. Do not run if gdb debug is
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# enabled as any debug will be redirected to the log.
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require !gdb_debug_enabled
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standard_testfile .c -2.c
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set srcfiles [list $srcfile $srcfile2]
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if {[prepare_for_testing "failed to prepare" $testfile $srcfiles]} {
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return -1
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}
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if ![runto_main] {
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return -1
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}
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# Redirect debug output to file.
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set logfile [host_standard_output_file gdb.txt]
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gdb_test_no_output "set logging file $logfile" \
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"set logging file [file tail $logfile]"
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gdb_test_no_output "set logging debugredirect on"
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gdb_test "set logging enabled on"
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# Enable debug frame.
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gdb_test "set debug frame 1"
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# Check that calling info frame doesn't trigger an exception that escapes to
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# the CLI.
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set re_locals " Locals at \[^\r\n\]*"
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set re_regs1 " Saved registers:"
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set re_reg "\[^ \]+ at $hex"
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set re_regs2 " $re_reg,( $re_reg,)*"
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set re_regs3 " ${re_reg}(, $re_reg)*"
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set re1 $re_locals
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set re2 \
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[multi_line \
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$re_locals\
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$re_regs1 \
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($re_regs2\r\n)*$re_regs3]
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gdb_test "info frame" "\r\n($re1|$re2)"
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gdb_test_no_output "set debug frame 0"
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gdb_test "set logging enabled off"
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