Subversion Repositories openrisc

# Copyright 1997, 1998, 1999, 2000, 2001, 2003, 2007, 2008

# 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 .

# Please email any bugs, comments, and/or additions to this file to:

# bug-gdb@prep.ai.mit.edu

# This test was written by Rich Title.

# Purpose is to test conditional breakpoints.

# Modeled after "break.exp".

if $tracelevel then {

        strace $tracelevel

        }

global usestubs

#

# test running programs

#

set prms_id 0

set bug_id 0

set testfile "break"

set srcfile ${testfile}.c

set srcfile1 ${testfile}1.c

set binfile ${objdir}/${subdir}/${testfile}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}0.o" object {debug nowarnings}] != "" } {

     untested condbreak.exp

     return -1

}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}1.o" object {debug nowarnings}] != "" } {

     untested condbreak.exp

     return -1

}

if  { [gdb_compile "${binfile}0.o ${binfile}1.o" "${binfile}" executable {debug nowarnings}] != "" } {

     untested condbreak.exp

     return -1

}

if [get_compiler_info ${binfile}] {

    return -1;

}

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

if [target_info exists gdb_stub] {

    gdb_step_for_stub;

}

set bp_location1  [gdb_get_line_number "set breakpoint 1 here"]

set bp_location6  [gdb_get_line_number "set breakpoint 6 here"]

set bp_location8  [gdb_get_line_number "set breakpoint 8 here" $srcfile1]

set bp_location9  [gdb_get_line_number "set breakpoint 9 here" $srcfile1]

set bp_location15 [gdb_get_line_number "set breakpoint 15 here" $srcfile1]

set bp_location16 [gdb_get_line_number "set breakpoint 16 here" $srcfile1]

#

# test break at function

#

gdb_test "break main" \

    "Breakpoint.*at.* file .*$srcfile, line.*" \

    "breakpoint function"

#

# test conditional break at function

#

gdb_test "break marker1 if 1==1" \

    "Breakpoint.*at.* file .*$srcfile1, line.*"

gdb_test "delete 2" ""

#

# test conditional break at line number

#

gdb_test "break $srcfile:$bp_location1 if 1==1" \

    "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\."

gdb_test "delete 3" ""

#

# test conditional break at function

#

gdb_test "break marker1 if (1==1)" \

    "Breakpoint.*at.* file .*$srcfile1, line.*"

#

# test conditional break at line number

#

gdb_test "break $srcfile:$bp_location1 if (1==1)" \

    "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\."

gdb_test "break marker2 if (a==43)" \

    "Breakpoint.*at.* file .*$srcfile1, line.*"

#

# check to see what breakpoints are set

#

if {$hp_aCC_compiler} {

    set marker1_proto "\\(void\\)"

    set marker2_proto "\\(int\\)"

} else {

    set marker1_proto ""

    set marker2_proto ""

}

gdb_test "info break" \

    "Num     Type\[ \]+Disp Enb Address\[ \]+What.*

\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location6.*

\[0-9\]+\[\t \]+breakpoint     keep y.* in marker1$marker1_proto at .*$srcfile1:($bp_location15|$bp_location16).*

\[\t \]+stop only if \\(1==1\\).*

\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*

\[\t \]+stop only if \\(1==1\\).*

\[0-9\]+\[\t \]+breakpoint     keep y.* in marker2$marker2_proto at .*$srcfile1:($bp_location8|$bp_location9).*

\[\t \]+stop only if \\(a==43\\).*" \

    "breakpoint info"

#

# run until the breakpoint at main is hit.

#

rerun_to_main

#

# run until the breakpoint at a line number

#

gdb_test "continue" "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \

                        "run until breakpoint set at a line number"

#

# run until the breakpoint at marker1

#

# If the inferior stops at the first instruction of a source line, GDB

# won't print the actual PC value; the source line is enough to

# exactly specify the PC.  But if the inferior is instead stopped in

# the midst of a source line, GDB will include the PC in the

# breakpoint hit message.  This way, GDB always provides the exact

# stop location, but avoids clutter when possible.

#

# Suppose you have a function written completely on one source line, like:

#    int foo (int x) { return 0; }

# Setting a breakpoint at `foo' actually places the breakpoint after

# foo's prologue.

#

# GCC's STABS writer always emits a line entry attributing the

# prologue instructions to the line containing the function's open

# brace, even if the first user instruction is also on that line.

# This means that, in the case of a one-line function, you will get

# two line entries in the debug info for the same line: one at the

# function's entry point, and another at the first user instruction.

# GDB preserves these duplicated line entries, and prefers the later

# one; thus, when the program stops after the prologue, at the first

# user instruction, GDB's search finds the second line entry, decides

# that the PC is indeed at the beginning of a source line, and doesn't

# print an address in the breakpoint hit message.

#

# GCC's Dwarf2 writer, on the other hand, squeezes out duplicate line

# entries, so GDB considers the source line to begin at the start of

# the function's prologue.  Thus, if the program stops at the

# breakpoint, GDB will decide that the PC is not at the beginning of a

# source line, and will print an address.

#

# I think the Dwarf2 writer's behavior is arguably correct, but not

# helpful.  If the user sets a breakpoint at that source line, they

# want that breakpoint to fall after the prologue.  Identifying the

# prologue's code with the opening brace is nice, but it shouldn't

# take precedence over real code.

#

# Until the Dwarf2 writer gets fixed, I'm going to XFAIL its behavior.

send_gdb "continue\n"

gdb_expect {

    -re  "Continuing\\..*Breakpoint \[0-9\]+, marker1 \\(\\) at .*$srcfile1:($bp_location15|$bp_location16).*($bp_location15|$bp_location16)\[\t \]+.*$gdb_prompt $" {

        pass "run until breakpoint at marker1"

    }

    -re  "Continuing\\..*Breakpoint \[0-9\]+, $hex in marker1 \\(\\) at .*$srcfile1:($bp_location15|$bp_location16).*($bp_location15|$bp_location16)\[\t \]+.*$gdb_prompt $" {

        xfail "run until breakpoint at marker1"

    }

    -re "$gdb_prompt $" {

        fail "run until breakpoint at marker1"

    }

    timeout {

        fail "(timeout) run until breakpoint at marker1"

    }

}

# run until the breakpoint at marker2

# Same issues here as above.

setup_xfail hppa2.0w-*-* 11512CLLbs

send_gdb "continue\n"

gdb_expect {

    -re "Continuing\\..*Breakpoint \[0-9\]+, marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*($bp_location8|$bp_location9)\[\t \]+.*" {

        pass "run until breakpoint at marker2"

    }

    -re "Continuing\\..*Breakpoint \[0-9\]+, $hex in marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*($bp_location8|$bp_location9)\[\t \]+.*" {

        xfail "run until breakpoint at marker2"

    }

    -re "$gdb_prompt $" {

        fail "run until breakpoint at marker2"

    }

    timeout {

        fail "(timeout) run until breakpoint at marker2"

    }

}