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- # Copyright 2020-2022 Free Software Foundation, Inc.
- # This program is free software; you can redistribute it and/or modify
- # it under the terms of the GNU General Public License as published by
- # the Free Software Foundation; either version 3 of the License, or
- # (at your option) any later version.
- #
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
- #
- # You should have received a copy of the GNU General Public License
- # along with this program. If not, see <http://www.gnu.org/licenses/>.
- # Check for an issue in GDB where buildsym_compunit::record_line was
- # removing duplicate line table entries, but skip_prologue_using_sal
- # depends on these duplicates to spot the end of the prologue.
- #
- # When the de-duplication was added this regression was not spotted as
- # it requires a particular combination of a (very) small function
- # being inlined into an also very small outer function.
- #
- # See also gdb.dwarf/dw2-inline-small-func.exp for a version of this
- # test that makes use of the Dejagnu DWARF compiler.
- #
- # This test simply compiles with optimization and checks that GDB can
- # do something suitable with the compiled binary. Problems with this
- # test are most likely to occur when GDB asks the target specific code
- # to skip the prologue (gdbarch_skip_prologue). Some targets make use
- # of skip_prologue_using_sal, which should be fine, however, some
- # targets make a poor attempt to duplicate parts of
- # skip_prologue_using_sal, these targets could easily fail this test.
- # This is not (necessarily) a problem with this test, but could
- # indicate a weakness with the target in question.
- standard_testfile inline-small-func.c inline-small-func.h
- if { [prepare_for_testing "failed to prepare" ${testfile} \
- [list $srcfile] {debug optimize=-O1}] } {
- return -1
- }
- if ![runto_main] {
- return -1
- }
- # Delete all breakpoints so that the output of "info breakpoints"
- # below will only contain a single breakpoint.
- delete_breakpoints
- # Place a breakpoint within the function in the header file.
- set linenum [gdb_get_line_number "callee: body" $srcfile2]
- gdb_breakpoint "${srcfile2}:${linenum}"
- # Check that the breakpoint was placed where we expected. It should
- # appear at the requested line. When the bug in GDB was present the
- # breakpoint would be placed on one of the following lines instead.
- gdb_test "info breakpoints" \
- ".* in callee at \[^\r\n\]+${srcfile2}:${linenum}\\y.*"
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