gdb/testsuite/gdb.dwarf2/dw2-skip-prologue.exp

# Copyright 2011-2021 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/>.
load_lib dwarf.exp

# Test multiple location breakpoints vs. prologue analysis on -O2 -g code.
# when the first statement of a function is an inlined function GDB could
# crash.  Map of this testcase:
# 
# File name                            Line number    Starting address
# main.c                                         5    func_start
# other.c                                        1    func0
# 	`inlined' called at main.c line 8
# main.c                                         9    func1
# 	func1 = Breakpoint location 1
# other.c                                        1    func2
# 	`inlined2' called at main.c line 11
# main.c                                         9    func3
# 	func3 = Breakpoint location 2
# 	`otherinline' called at main.c line 9
# end of main                                         func_end

# This test can only be run on targets which support DWARF-2 and use gas.
if {![dwarf2_support]} {
    return 0  
}

standard_testfile
set executable ${testfile}

if [is_ilp32_target] {
    set ptrbits 32
} else {
    set ptrbits 64
}

if { [build_executable ${testfile}.exp ${executable} \
	  "${testfile}.c ${testfile}.S" \
	  [list additional_flags=-DINLINED \
		additional_flags=-DPTRBITS=$ptrbits]] == -1 } {
    return -1
}

# We need those symbols global to access them from the .S file.
set test "strip stub symbols"
set objcopy_program [gdb_find_objcopy]
set result [catch "exec $objcopy_program							\
			-N func0 -N func1 -N func2 -N func3         -N func_start -N func_end	\
			-N fund0 -N fund1 -N fund2 -N fund3 -N fund -N fund_start		\
			${binfile}" output]
verbose "result is $result"
verbose "output is $output"
if {$result != 0} {
    fail $test
    return
}
pass $test

clean_restart $executable

if ![runto_main] {
    return -1
}

gdb_breakpoint "func"
gdb_continue_to_breakpoint "func"

# Sanity check GDB has really found 2 locations
gdb_test {info break $bpnum} "\r\n2\\.1\[ \t\]\[^\n\]*\r\n2\\.2\[ \t\]\[^\n\]*" "2 locations found"

gdb_test "p (int) v" " = 0" "no statement got executed"