gdb/testsuite/gdb.opt/inline-bt.exp

# Copyright 2008-2020 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/>.

standard_testfile .c inline-markers.c

if {[prepare_for_testing "failed to prepare" $testfile \
	 [list $srcfile $srcfile2] \
	 {debug additional_flags=-Winline}]} {
    return -1
}

runto_main

get_compiler_info
get_debug_format
if { [skip_inline_frame_tests] } {
    untested "skipping inline frame tests"
    return
}

set line1 [gdb_get_line_number "set breakpoint 1 here" ${srcfile2}]
gdb_breakpoint $srcfile2:$line1

gdb_test "continue" ".*set breakpoint 1 here.*" "continue to bar (1)"
gdb_test "backtrace" "#0  bar.*#1  .*main.*" "backtrace from bar (1)"
gdb_test "info frame" ".*called by frame.*" "bar not inlined"

gdb_test "continue" ".*set breakpoint 1 here.*" "continue to bar (2)"
gdb_test "backtrace" "#0  bar.*#1  .*func1.*#2  .*main.*" \
    "backtrace from bar (2)"
gdb_test "up" "#1  .*func1.*" "up from bar (2)"
gdb_test "info frame" ".*inlined into frame.*" "func1 inlined (2)"

gdb_test "continue" ".*set breakpoint 1 here.*" "continue to bar (3)"
gdb_test "backtrace" "#0  bar.*#1  .*func1.*#2  .*func2.*#3  .*main.*" \
    "backtrace from bar (3)"
gdb_test "up" "#1  .*func1.*" "up from bar (3)"
gdb_test "info frame" ".*inlined into frame.*" "func1 inlined (3)"
gdb_test "up" "#2  .*func2.*" "up from func1 (3)"
gdb_test "info frame" ".*inlined into frame.*" "func2 inlined (3)"

# A regression test for having a backtrace limit that forces unwinding
# to stop after an inline frame.  GDB needs to compute the frame_id of
# the inline frame, which requires unwinding past all the inline
# frames to the real stack frame, even if that means bypassing the
# user visible backtrace limit.  See PR backtrace/15558.
#
# Set a backtrace limit that forces an unwind stop after an inline
# function.
gdb_test_no_output "set backtrace limit 2"
# Force flushing the frame cache.
gdb_test "flushregs" "Register cache flushed."
gdb_test "up" "#1  .*func1.*" "up from bar (4)"
gdb_test "info frame" ".*in func1.*" "info frame still works"
# Verify the user visible limit works as expected.
gdb_test "up" "Initial frame selected; you cannot go up." "up hits limit"