1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
61 lines
2.1 KiB
C
61 lines
2.1 KiB
C
/* Copyright 2020-2024 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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/* This tests GDB's handling of the DWARF is-stmt field in the line table.
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This field is used when many addresses all represent the same source
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line. The address(es) at which it is suitable to place a breakpoint for
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a line are marked with is-stmt true, while address(es) that are not good
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places to place a breakpoint are marked as is-stmt false.
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In order to build a reproducible test and exercise GDB's is-stmt
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support, we will be generating our own DWARF. The test will contain a
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series of C source lines, ensuring that we get a series of assembler
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instructions. Each C source line will be given an assembler label,
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which we use to generate a fake line table.
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In this fake line table each assembler block is claimed to represent a
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single C source line, however, we will toggle the is-stmt flag. We can
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then debug this with GDB and test the handling of is-stmt. */
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/* Used to insert labels with which we can build a fake line table. */
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#define LL(N) asm ("line_label_" #N ": .globl line_label_" #N)
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volatile int var;
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volatile int bar;
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int
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main ()
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{ /* main prologue */
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asm ("main_label: .globl main_label");
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LL (1);
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var = 99; /* main, set var to 99 */
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bar = 99;
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LL (2);
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var = 0; /* main, set var to 0 */
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bar = 0;
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LL (3);
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var = 1; /* main, set var to 1 */
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bar = 1;
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LL (4);
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var = 2; /* main, set var to 2 */
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bar = 2;
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LL (5);
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return 0; /* main end */
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}
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