1 # Copyright 2020 Free Software Foundation, Inc.
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.
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.
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/>.
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.
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.
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.
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.
37 standard_testfile inline-small-func.c inline-small-func.h
39 if { [prepare_for_testing "failed to prepare" ${testfile} \
40 [list $srcfile] {debug optimize=-O1}] } {
48 # Delete all breakpoints so that the output of "info breakpoints"
49 # below will only contain a single breakpoint.
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}"
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.*"