gdb/testsuite/gdb.base/condbreak.exp

   1 # Copyright 1997, 1998, 1999, 2000, 2001, 2003, 2007, 2008, 2009, 2010, 2011
   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 # This test was written by Rich Title.
  18 # Purpose is to test conditional breakpoints.
  19 # Modeled after "break.exp".
  20
  21 if $tracelevel then {
  22         strace $tracelevel
  23         }
  24
  25 global usestubs
  26
  27 #
  28 # test running programs
  29 #
  30
  31 set testfile "break"
  32 set srcfile ${testfile}.c
  33 set srcfile1 ${testfile}1.c
  34 set binfile ${objdir}/${subdir}/${testfile}
  35
  36 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}0.o" object {debug nowarnings}] != "" } {
  37      untested condbreak.exp
  38      return -1
  39 }
  40
  41 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}1.o" object {debug nowarnings}] != "" } {
  42      untested condbreak.exp
  43      return -1
  44 }
  45
  46 if  { [gdb_compile "${binfile}0.o ${binfile}1.o" "${binfile}" executable {debug nowarnings}] != "" } {
  47      untested condbreak.exp
  48      return -1
  49 }
  50
  51 if [get_compiler_info ${binfile}] {
  52     return -1;
  53 }
  54
  55 gdb_exit
  56 gdb_start
  57 gdb_reinitialize_dir $srcdir/$subdir
  58 gdb_load ${binfile}
  59
  60
  61 if [target_info exists gdb_stub] {
  62     gdb_step_for_stub;
  63 }
  64
  65 set bp_location1  [gdb_get_line_number "set breakpoint 1 here"]
  66 set bp_location6  [gdb_get_line_number "set breakpoint 6 here"]
  67 set bp_location8  [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
  68 set bp_location9  [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
  69 set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
  70 set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
  71 set bp_location15 [gdb_get_line_number "set breakpoint 15 here" $srcfile1]
  72 set bp_location16 [gdb_get_line_number "set breakpoint 16 here" $srcfile1]
  73 set bp_location17 [gdb_get_line_number "set breakpoint 17 here" $srcfile1]
  74 set bp_location18 [gdb_get_line_number "set breakpoint 18 here" $srcfile1]
  75
  76 #
  77 # test break at function
  78 #
  79 gdb_test "break main" \
  80     "Breakpoint.*at.* file .*$srcfile, line.*" \
  81     "breakpoint function"
  82
  83 #
  84 # test conditional break at function
  85 #
  86 gdb_test "break marker1 if 1==1" \
  87     "Breakpoint.*at.* file .*$srcfile1, line.*"
  88
  89 gdb_test_no_output "delete 2"
  90
  91 #
  92 # test conditional break at line number
  93 #
  94 gdb_test "break $srcfile:$bp_location1 if 1==1" \
  95     "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\."
  96
  97 gdb_test_no_output "delete 3"
  98
  99 #
 100 # test conditional break at function
 101 #
 102 gdb_test "break marker1 if (1==1)" \
 103     "Breakpoint.*at.* file .*$srcfile1, line.*"
 104
 105 #
 106 # test conditional break at line number
 107 #
 108 gdb_test "break $srcfile:$bp_location1 if (1==1)" \
 109     "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\."
 110
 111 gdb_test "break marker2 if (a==43)" \
 112     "Breakpoint.*at.* file .*$srcfile1, line.*"
 113
 114 #
 115 # Check break involving inferior function call.
 116 # Ensure there is at least one additional breakpoint with higher VMA.
 117 #
 118 gdb_test "break marker3 if (multi_line_if_conditional(1,1,1)==0)" \
 119     "Breakpoint.*at.* file .*$srcfile1, line.*"
 120 gdb_test "break marker4" \
 121     "Breakpoint.*at.* file .*$srcfile1, line.*"
 122
 123 #
 124 # check to see what breakpoints are set
 125 #
 126
 127 if {$hp_aCC_compiler} {
 128     set marker1_proto "\\(void\\)"
 129     set marker2_proto "\\(int\\)"
 130     # Not checked.
 131     set marker3_proto "\\(char \\*, char \\*\\)"
 132     set marker4_proto "\\(long\\)"
 133 } else {
 134     set marker1_proto ""
 135     set marker2_proto ""
 136     set marker3_proto ""
 137     set marker4_proto ""
 138 }
 139
 140 gdb_test "info break" \
 141     "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 142 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location6.*
 143 \[0-9\]+\[\t \]+breakpoint     keep y.* in marker1$marker1_proto at .*$srcfile1:($bp_location15|$bp_location16).*
 144 \[\t \]+stop only if \\(1==1\\).*
 145 \[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
 146 \[\t \]+stop only if \\(1==1\\).*
 147 \[0-9\]+\[\t \]+breakpoint     keep y.* in marker2$marker2_proto at .*$srcfile1:($bp_location8|$bp_location9).*
 148 \[\t \]+stop only if \\(a==43\\).*
 149 \[0-9\]+\[\t \]+breakpoint     keep y.* in marker3$marker3_proto at .*$srcfile1:($bp_location17|$bp_location18).*
 150 \[\t \]+stop only if \\(multi_line_if_conditional\\(1,1,1\\)==0\\).*
 151 \[0-9\]+\[\t \]+breakpoint     keep y.* in marker4$marker4_proto at .*$srcfile1:($bp_location13|$bp_location14).*" \
 152     "breakpoint info"
 153
 154
 155 #
 156 # run until the breakpoint at main is hit.
 157 #
 158
 159
 160 rerun_to_main
 161
 162 #
 163 # run until the breakpoint at a line number
 164 #
 165 gdb_test "continue" "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
 166                         "run until breakpoint set at a line number"
 167
 168 #
 169 # run until the breakpoint at marker1
 170 #
 171 # If the inferior stops at the first instruction of a source line, GDB
 172 # won't print the actual PC value; the source line is enough to
 173 # exactly specify the PC.  But if the inferior is instead stopped in
 174 # the midst of a source line, GDB will include the PC in the
 175 # breakpoint hit message.  This way, GDB always provides the exact
 176 # stop location, but avoids clutter when possible.
 177 #
 178 # Suppose you have a function written completely on one source line, like:
 179 #    int foo (int x) { return 0; }
 180 # Setting a breakpoint at `foo' actually places the breakpoint after
 181 # foo's prologue.
 182 #
 183 # GCC's STABS writer always emits a line entry attributing the
 184 # prologue instructions to the line containing the function's open
 185 # brace, even if the first user instruction is also on that line.
 186 # This means that, in the case of a one-line function, you will get
 187 # two line entries in the debug info for the same line: one at the
 188 # function's entry point, and another at the first user instruction.
 189 # GDB preserves these duplicated line entries, and prefers the later
 190 # one; thus, when the program stops after the prologue, at the first
 191 # user instruction, GDB's search finds the second line entry, decides
 192 # that the PC is indeed at the beginning of a source line, and doesn't
 193 # print an address in the breakpoint hit message.
 194 #
 195 # GCC's Dwarf2 writer, on the other hand, squeezes out duplicate line
 196 # entries, so GDB considers the source line to begin at the start of
 197 # the function's prologue.  Thus, if the program stops at the
 198 # breakpoint, GDB will decide that the PC is not at the beginning of a
 199 # source line, and will print an address.
 200 #
 201 # I think the Dwarf2 writer's behavior is arguably correct, but not
 202 # helpful.  If the user sets a breakpoint at that source line, they
 203 # want that breakpoint to fall after the prologue.  Identifying the
 204 # prologue's code with the opening brace is nice, but it shouldn't
 205 # take precedence over real code.
 206 #
 207 # Until the Dwarf2 writer gets fixed, I'm going to XFAIL its behavior.
 208 gdb_test_multiple "continue" "run until breakpoint at marker1" {
 209     -re  "Continuing\\..*Breakpoint \[0-9\]+, marker1 \\(\\) at .*$srcfile1:($bp_location15|$bp_location16).*($bp_location15|$bp_location16)\[\t \]+.*$gdb_prompt $" {
 210         pass "run until breakpoint at marker1"
 211     }
 212     -re  "Continuing\\..*Breakpoint \[0-9\]+, $hex in marker1 \\(\\) at .*$srcfile1:($bp_location15|$bp_location16).*($bp_location15|$bp_location16)\[\t \]+.*$gdb_prompt $" {
 213         xfail "run until breakpoint at marker1"
 214     }
 215 }
 216
 217 # run until the breakpoint at marker2
 218 # Same issues here as above.
 219 setup_xfail hppa2.0w-*-* 11512CLLbs
 220 gdb_test_multiple "continue" "run until breakpoint at marker2" {
 221     -re "Continuing\\..*Breakpoint \[0-9\]+, marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*($bp_location8|$bp_location9)\[\t \]+.*$gdb_prompt $" {
 222         pass "run until breakpoint at marker2"
 223     }
 224     -re "Continuing\\..*Breakpoint \[0-9\]+, $hex in marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*($bp_location8|$bp_location9)\[\t \]+.*$gdb_prompt $" {
 225         xfail "run until breakpoint at marker2"
 226     }
 227 }
 228
 229 # Test combinations of conditional and thread-specific breakpoints.
 230 gdb_test "break main if (1==1) thread 999" \
 231     "Unknown thread 999\\."
 232 gdb_test "break main thread 999 if (1==1)" \
 233     "Unknown thread 999\\."
 234
 235 # Verify that both if and thread can be distinguished from a breakpoint
 236 # address expression.
 237 gdb_test "break *main if (1==1) thread 999" \
 238     "Unknown thread 999\\."
 239 gdb_test "break *main thread 999 if (1==1)" \
 240     "Unknown thread 999\\."
 241
 242 # Similarly for task.
 243 gdb_test "break *main if (1==1) task 999" \
 244     "Unknown task 999\\."
 245 gdb_test "break *main task 999 if (1==1)" \
 246     "Unknown task 999\\."
 247
 248 # GDB accepts abbreviations for "thread" and "task".
 249 gdb_test "break *main if (1==1) t 999" \
 250     "Unknown thread 999\\."
 251 gdb_test "break *main if (1==1) th 999" \
 252     "Unknown thread 999\\."
 253 gdb_test "break *main if (1==1) ta 999" \
 254     "Unknown task 999\\."
 255
 256 set test "run until breakpoint at marker3"
 257 gdb_test_multiple "continue" $test {
 258     -re "Continuing\\..*Breakpoint \[0-9\]+, marker3 \\(a=$hex \"stack\", b=$hex \"trace\"\\) at .*$srcfile1:($bp_location17|$bp_location18).*($bp_location17|$bp_location18)\[\t \]+.*$gdb_prompt $" {
 259         pass $test
 260     }
 261     -re "Continuing\\..*Breakpoint \[0-9\]+, $hex in marker3 \\(a=$hex \"stack\", b=$hex \"trace\"\\) at .*$srcfile1:($bp_location17|$bp_location18).*($bp_location17|$bp_location18)\[\t \]+.*$gdb_prompt $" {
 262         xfail $test
 263     }
 264 }
 265
 266 set test "run until breakpoint at marker4"
 267 gdb_test_multiple "continue" $test {
 268     -re "Continuing\\..*Breakpoint \[0-9\]+, marker4 \\(d=177601976\\) at .*$srcfile1:($bp_location13|$bp_location14).*($bp_location13|$bp_location14)\[\t \]+.*$gdb_prompt $" {
 269         pass $test
 270     }
 271     -re "Continuing\\..*Breakpoint \[0-9\]+, $hex in marker4 \\(d=177601976\\) at .*$srcfile1:($bp_location13|$bp_location14).*($bp_location13|$bp_location14)\[\t \]+.*$gdb_prompt $" {
 272         xfail $test
 273     }
 274 }