binutils-gdb/gdb/testsuite/gdb.base/break-on-linker-gcd-function.exp

# Copyright 2011-2017 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/>.

# This file is part of the gdb testsuite

# Test casting, especially between class types or pointer-to-class
# types.

# This file is part of the gdb testsuite

#
# test running programs
#
if { [skip_cplus_tests] } { continue }

standard_testfile .cc

if [get_compiler_info "c++"] {
    return -1
}

set additional_flags {-ffunction-sections -Wl,--gc-sections}
if {[build_executable_from_specs $testfile.exp $testfile \
       {c++ additional_flags=-Wl,--gc-sections} \
       $srcfile {debug c++ additional_flags=-ffunction-sections}]} {
    untested "failed to compile"
    return -1
}

clean_restart $testfile

proc set_breakpoint_on_gcd_function {} {
    # Single hex digit
    set xd {[0-9a-f]}

    # This accepts e.g. "Breakpoint 1 at 0x40968a" (fixed GDB)
    # but rejects e.g. "Breakpoint 1 at 0x4" (broken GDB).
    gdb_test "b [gdb_get_line_number "gdb break here"]" \
	"Breakpoint \[0-9\] at 0x${xd}${xd}+: .*"
}

set_breakpoint_on_gcd_function

set saved_gdbflags $GDBFLAGS
set GDBFLAGS "$GDBFLAGS --readnow"
clean_restart ${testfile}
set GDBFLAGS $saved_gdbflags

with_test_prefix "readnow" {
    set_breakpoint_on_gcd_function
}