1# Copyright 1997, 1998, 1999, 2000, 2001, 2003, 2007
2# Free Software Foundation, Inc.
3
4# This program is free software; you can redistribute it and/or modify
5# it under the terms of the GNU General Public License as published by
6# the Free Software Foundation; either version 3 of the License, or
7# (at your option) any later version.
8#
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12# GNU General Public License for more details.
13#
14# You should have received a copy of the GNU General Public License
15# along with this program.  If not, see <http://www.gnu.org/licenses/>.
16
17# Please email any bugs, comments, and/or additions to this file to:
18# bug-gdb@prep.ai.mit.edu
19
20# This test was written by Rich Title.
21# Purpose is to test conditional breakpoints.
22# Modeled after "break.exp".
23
24if $tracelevel then {
25	strace $tracelevel
26	}
27
28global usestubs
29
30#
31# test running programs
32#
33set prms_id 0
34set bug_id 0
35
36set testfile "break"
37set srcfile ${testfile}.c
38set srcfile1 ${testfile}1.c
39set binfile ${objdir}/${subdir}/${testfile}
40
41if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}0.o" object {debug nowarnings}] != "" } {
42     untested condbreak.exp
43     return -1
44}
45
46if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}1.o" object {debug nowarnings}] != "" } {
47     untested condbreak.exp
48     return -1
49}
50
51if  { [gdb_compile "${binfile}0.o ${binfile}1.o" "${binfile}" executable {debug nowarnings}] != "" } {
52     untested condbreak.exp
53     return -1
54}
55
56if [get_compiler_info ${binfile}] {
57    return -1;
58}
59
60gdb_exit
61gdb_start
62gdb_reinitialize_dir $srcdir/$subdir
63gdb_load ${binfile}
64
65
66if [target_info exists gdb_stub] {
67    gdb_step_for_stub;
68}
69
70set bp_location1  [gdb_get_line_number "set breakpoint 1 here"]
71set bp_location6  [gdb_get_line_number "set breakpoint 6 here"]
72set bp_location8  [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
73set bp_location9  [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
74set bp_location15 [gdb_get_line_number "set breakpoint 15 here" $srcfile1]
75set bp_location16 [gdb_get_line_number "set breakpoint 16 here" $srcfile1]
76
77#
78# test break at function
79#
80gdb_test "break main" \
81    "Breakpoint.*at.* file .*$srcfile, line.*" \
82    "breakpoint function"
83
84#
85# test conditional break at function
86#
87gdb_test "break marker1 if 1==1" \
88    "Breakpoint.*at.* file .*$srcfile1, line.*"
89
90gdb_test "delete 2" ""
91
92#
93# test conditional break at line number
94#
95gdb_test "break $srcfile:$bp_location1 if 1==1" \
96    "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\."
97
98gdb_test "delete 3" ""
99
100#
101# test conditional break at function
102#
103gdb_test "break marker1 if (1==1)" \
104    "Breakpoint.*at.* file .*$srcfile1, line.*"
105
106#
107# test conditional break at line number
108#
109gdb_test "break $srcfile:$bp_location1 if (1==1)" \
110    "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\."
111
112gdb_test "break marker2 if (a==43)" \
113    "Breakpoint.*at.* file .*$srcfile1, line.*"
114
115#
116# check to see what breakpoints are set
117#
118
119if {$hp_aCC_compiler} {
120    set marker1_proto "\\(void\\)"
121    set marker2_proto "\\(int\\)"
122} else {
123    set marker1_proto ""
124    set marker2_proto ""
125}
126
127gdb_test "info break" \
128    "Num Type\[ \]+Disp Enb Address\[ \]+What.*
129\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location6.*
130\[0-9\]+\[\t \]+breakpoint     keep y.* in marker1$marker1_proto at .*$srcfile1:($bp_location15|$bp_location16).*
131\[\t \]+stop only if 1 == 1.*
132\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
133\[\t \]+stop only if 1 == 1.*
134\[0-9\]+\[\t \]+breakpoint     keep y.* in marker2$marker2_proto at .*$srcfile1:($bp_location8|$bp_location9).*
135\[\t \]+stop only if a == 43.*" \
136    "breakpoint info"
137
138
139#
140# run until the breakpoint at main is hit.
141#
142
143
144rerun_to_main
145
146#
147# run until the breakpoint at a line number
148#
149gdb_test "continue" "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
150			"run until breakpoint set at a line number"
151
152#
153# run until the breakpoint at marker1
154#
155# If the inferior stops at the first instruction of a source line, GDB
156# won't print the actual PC value; the source line is enough to
157# exactly specify the PC.  But if the inferior is instead stopped in
158# the midst of a source line, GDB will include the PC in the
159# breakpoint hit message.  This way, GDB always provides the exact
160# stop location, but avoids clutter when possible.
161#
162# Suppose you have a function written completely on one source line, like:
163#    int foo (int x) { return 0; }
164# Setting a breakpoint at `foo' actually places the breakpoint after
165# foo's prologue.
166#
167# GCC's STABS writer always emits a line entry attributing the
168# prologue instructions to the line containing the function's open
169# brace, even if the first user instruction is also on that line.
170# This means that, in the case of a one-line function, you will get
171# two line entries in the debug info for the same line: one at the
172# function's entry point, and another at the first user instruction.
173# GDB preserves these duplicated line entries, and prefers the later
174# one; thus, when the program stops after the prologue, at the first
175# user instruction, GDB's search finds the second line entry, decides
176# that the PC is indeed at the beginning of a source line, and doesn't
177# print an address in the breakpoint hit message.
178#
179# GCC's Dwarf2 writer, on the other hand, squeezes out duplicate line
180# entries, so GDB considers the source line to begin at the start of
181# the function's prologue.  Thus, if the program stops at the
182# breakpoint, GDB will decide that the PC is not at the beginning of a
183# source line, and will print an address.
184#
185# I think the Dwarf2 writer's behavior is arguably correct, but not
186# helpful.  If the user sets a breakpoint at that source line, they
187# want that breakpoint to fall after the prologue.  Identifying the
188# prologue's code with the opening brace is nice, but it shouldn't
189# take precedence over real code.
190#
191# Until the Dwarf2 writer gets fixed, I'm going to XFAIL its behavior.
192send_gdb "continue\n"
193gdb_expect {
194    -re  "Continuing\\..*Breakpoint \[0-9\]+, marker1 \\(\\) at .*$srcfile1:($bp_location15|$bp_location16).*($bp_location15|$bp_location16)\[\t \]+.*$gdb_prompt $" {
195	pass "run until breakpoint at marker1"
196    }
197    -re  "Continuing\\..*Breakpoint \[0-9\]+, $hex in marker1 \\(\\) at .*$srcfile1:($bp_location15|$bp_location16).*($bp_location15|$bp_location16)\[\t \]+.*$gdb_prompt $" {
198	xfail "run until breakpoint at marker1"
199    }
200    -re "$gdb_prompt $" {
201	fail "run until breakpoint at marker1"
202    }
203    timeout {
204	fail "(timeout) run until breakpoint at marker1"
205    }
206}
207
208# run until the breakpoint at marker2
209# Same issues here as above.
210setup_xfail hppa2.0w-*-* 11512CLLbs
211send_gdb "continue\n"
212gdb_expect {
213    -re "Continuing\\..*Breakpoint \[0-9\]+, marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*($bp_location8|$bp_location9)\[\t \]+.*" {
214	pass "run until breakpoint at marker2"
215    }
216    -re "Continuing\\..*Breakpoint \[0-9\]+, $hex in marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*($bp_location8|$bp_location9)\[\t \]+.*" {
217	xfail "run until breakpoint at marker2"
218    }
219    -re "$gdb_prompt $" {
220	fail "run until breakpoint at marker2"
221    }
222    timeout {
223	fail "(timeout) run until breakpoint at marker2"
224    }
225}
226