# Copyright 1997, 1998, 1999, 2000, 2001, 2003, 2007, 2008, 2009, 2010 # 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 . # 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 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_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1] set bp_location14 [gdb_get_line_number "set breakpoint 14 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] set bp_location17 [gdb_get_line_number "set breakpoint 17 here" $srcfile1] set bp_location18 [gdb_get_line_number "set breakpoint 18 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 break involving inferior function call. # Ensure there is at least one additional breakpoint with higher VMA. # gdb_test "break marker3 if (multi_line_if_conditional(1,1,1)==0)" \ "Breakpoint.*at.* file .*$srcfile1, line.*" gdb_test "break marker4" \ "Breakpoint.*at.* file .*$srcfile1, line.*" # # check to see what breakpoints are set # if {$hp_aCC_compiler} { set marker1_proto "\\(void\\)" set marker2_proto "\\(int\\)" # Not checked. set marker3_proto "\\(char \\*, char \\*\\)" set marker4_proto "\\(long\\)" } else { set marker1_proto "" set marker2_proto "" set marker3_proto "" set marker4_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\\).* \[0-9\]+\[\t \]+breakpoint keep y.* in marker3$marker3_proto at .*$srcfile1:($bp_location17|$bp_location18).* \[\t \]+stop only if \\(multi_line_if_conditional\\(1,1,1\\)==0\\).* \[0-9\]+\[\t \]+breakpoint keep y.* in marker4$marker4_proto at .*$srcfile1:($bp_location13|$bp_location14).*" \ "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. gdb_test_multiple "continue" "run until breakpoint at marker1" { -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" } } # run until the breakpoint at marker2 # Same issues here as above. setup_xfail hppa2.0w-*-* 11512CLLbs gdb_test_multiple "continue" "run until breakpoint at marker2" { -re "Continuing\\..*Breakpoint \[0-9\]+, marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*($bp_location8|$bp_location9)\[\t \]+.*$gdb_prompt $" { 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)\[\t \]+.*$gdb_prompt $" { xfail "run until breakpoint at marker2" } } # Test combinations of conditional and thread-specific breakpoints. gdb_test "break main if (1==1) thread 999" \ "Unknown thread 999\\." gdb_test "break main thread 999 if (1==1)" \ "Unknown thread 999\\." # Verify that both if and thread can be distinguished from a breakpoint # address expression. gdb_test "break *main if (1==1) thread 999" \ "Unknown thread 999\\." gdb_test "break *main thread 999 if (1==1)" \ "Unknown thread 999\\." # Similarly for task. gdb_test "break *main if (1==1) task 999" \ "Unknown task 999\\." gdb_test "break *main task 999 if (1==1)" \ "Unknown task 999\\." # GDB accepts abbreviations for "thread" and "task". gdb_test "break *main if (1==1) t 999" \ "Unknown thread 999\\." gdb_test "break *main if (1==1) th 999" \ "Unknown thread 999\\." gdb_test "break *main if (1==1) ta 999" \ "Unknown task 999\\." set test "run until breakpoint at marker3" gdb_test_multiple "continue" $test { -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 $" { pass $test } -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 $" { xfail $test } } set test "run until breakpoint at marker4" gdb_test_multiple "continue" $test { -re "Continuing\\..*Breakpoint \[0-9\]+, marker4 \\(d=177601976\\) at .*$srcfile1:($bp_location13|$bp_location14).*($bp_location13|$bp_location14)\[\t \]+.*$gdb_prompt $" { pass $test } -re "Continuing\\..*Breakpoint \[0-9\]+, $hex in marker4 \\(d=177601976\\) at .*$srcfile1:($bp_location13|$bp_location14).*($bp_location13|$bp_location14)\[\t \]+.*$gdb_prompt $" { xfail $test } }