binutils-gdb/gdb/testsuite/gdb.base/prologue.exp

# Test for prologue skipping in minimal symbols with line info.
# Copyright 2007-2012 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/>.

if { [skip_cplus_tests] } { continue }

set testfile "prologue"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
     untested prologue.exp
     return -1
}

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}

if ![runto_main] then {
    perror "couldn't run to breakpoint"
    continue
}

proc find_breakpoint_pc { sym } {
    global decimal hex gdb_prompt

    if { [gdb_breakpoint $sym temporary] } {
	pass "setting breakpoint at $sym"
    }

    gdb_test "continue" "marker \\(.*\\) at.*" "continue to $sym"

    set pc 0
    set msg "reading \$pc: $sym"
    gdb_test_multiple "print/x \$pc" $msg {
	-re "\\\$$decimal = ($hex)\r\n$gdb_prompt $" {
	    set pc $expect_out(1,string)
	    pass $msg
	}
    }

    return $pc
}

# GDB would skip the prologue differently when given a symbol with
# debug info than when given a minimal symbol from the symbol table.
# Make sure this is fixed.

set pc1 [find_breakpoint_pc "marker"]

set pc2 [find_breakpoint_pc "other"]

gdb_test "print $pc1 == $pc2" "\\\$$decimal = 1" "same pc from minimal symbol"