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1d506c26 | 1 | # Copyright 2020-2024 Free Software Foundation, Inc. |
c90d28ac AB |
2 | |
3 | # This program is free software; you can redistribute it and/or modify | |
4 | # it under the terms of the GNU General Public License as published by | |
5 | # the Free Software Foundation; either version 3 of the License, or | |
6 | # (at your option) any later version. | |
7 | # | |
8 | # This program is distributed in the hope that it will be useful, | |
9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | # GNU General Public License for more details. | |
12 | # | |
13 | # You should have received a copy of the GNU General Public License | |
14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | # Check for an issue in GDB where buildsym_compunit::record_line was | |
17 | # removing duplicate line table entries, but skip_prologue_using_sal | |
18 | # depends on these duplicates to spot the end of the prologue. | |
19 | # | |
20 | # When the de-duplication was added this regression was not spotted as | |
21 | # it requires a particular combination of a (very) small function | |
22 | # being inlined into an also very small outer function. | |
23 | # | |
24 | # See also gdb.dwarf/dw2-inline-small-func.exp for a version of this | |
25 | # test that makes use of the Dejagnu DWARF compiler. | |
26 | # | |
27 | # This test simply compiles with optimization and checks that GDB can | |
28 | # do something suitable with the compiled binary. Problems with this | |
29 | # test are most likely to occur when GDB asks the target specific code | |
30 | # to skip the prologue (gdbarch_skip_prologue). Some targets make use | |
31 | # of skip_prologue_using_sal, which should be fine, however, some | |
32 | # targets make a poor attempt to duplicate parts of | |
33 | # skip_prologue_using_sal, these targets could easily fail this test. | |
34 | # This is not (necessarily) a problem with this test, but could | |
35 | # indicate a weakness with the target in question. | |
36 | ||
37 | standard_testfile inline-small-func.c inline-small-func.h | |
38 | ||
39 | if { [prepare_for_testing "failed to prepare" ${testfile} \ | |
40 | [list $srcfile] {debug optimize=-O1}] } { | |
41 | return -1 | |
42 | } | |
43 | ||
44 | if ![runto_main] { | |
45 | return -1 | |
46 | } | |
47 | ||
48 | # Delete all breakpoints so that the output of "info breakpoints" | |
49 | # below will only contain a single breakpoint. | |
50 | delete_breakpoints | |
51 | ||
52 | # Place a breakpoint within the function in the header file. | |
53 | set linenum [gdb_get_line_number "callee: body" $srcfile2] | |
54 | gdb_breakpoint "${srcfile2}:${linenum}" | |
55 | ||
56 | # Check that the breakpoint was placed where we expected. It should | |
57 | # appear at the requested line. When the bug in GDB was present the | |
58 | # breakpoint would be placed on one of the following lines instead. | |
59 | gdb_test "info breakpoints" \ | |
60 | ".* in callee at \[^\r\n\]+${srcfile2}:${linenum}\\y.*" |