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jeremybenn |
# Copyright 1997, 1998, 1999, 2000, 2001, 2003, 2007, 2008, 2009, 2010
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# Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see .
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# This test was written by Rich Title.
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# Purpose is to test conditional breakpoints.
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# Modeled after "break.exp".
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if $tracelevel then {
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strace $tracelevel
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}
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global usestubs
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#
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# test running programs
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#
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set prms_id 0
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set bug_id 0
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set testfile "break"
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set srcfile ${testfile}.c
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set srcfile1 ${testfile}1.c
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set binfile ${objdir}/${subdir}/${testfile}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}0.o" object {debug nowarnings}] != "" } {
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untested condbreak.exp
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return -1
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}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile1}" "${binfile}1.o" object {debug nowarnings}] != "" } {
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untested condbreak.exp
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return -1
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}
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if { [gdb_compile "${binfile}0.o ${binfile}1.o" "${binfile}" executable {debug nowarnings}] != "" } {
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untested condbreak.exp
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return -1
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}
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if [get_compiler_info ${binfile}] {
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return -1;
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}
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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if [target_info exists gdb_stub] {
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gdb_step_for_stub;
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}
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set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
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set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]
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set bp_location8 [gdb_get_line_number "set breakpoint 8 here" $srcfile1]
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set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
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set bp_location13 [gdb_get_line_number "set breakpoint 13 here" $srcfile1]
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set bp_location14 [gdb_get_line_number "set breakpoint 14 here" $srcfile1]
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set bp_location15 [gdb_get_line_number "set breakpoint 15 here" $srcfile1]
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set bp_location16 [gdb_get_line_number "set breakpoint 16 here" $srcfile1]
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set bp_location17 [gdb_get_line_number "set breakpoint 17 here" $srcfile1]
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set bp_location18 [gdb_get_line_number "set breakpoint 18 here" $srcfile1]
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#
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# test break at function
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#
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gdb_test "break main" \
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"Breakpoint.*at.* file .*$srcfile, line.*" \
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"breakpoint function"
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#
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# test conditional break at function
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#
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gdb_test "break marker1 if 1==1" \
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"Breakpoint.*at.* file .*$srcfile1, line.*"
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gdb_test "delete 2" ""
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#
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# test conditional break at line number
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#
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gdb_test "break $srcfile:$bp_location1 if 1==1" \
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"Breakpoint.*at.* file .*$srcfile, line $bp_location1\\."
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gdb_test "delete 3" ""
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#
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# test conditional break at function
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#
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gdb_test "break marker1 if (1==1)" \
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"Breakpoint.*at.* file .*$srcfile1, line.*"
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#
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# test conditional break at line number
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#
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gdb_test "break $srcfile:$bp_location1 if (1==1)" \
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"Breakpoint.*at.* file .*$srcfile, line $bp_location1\\."
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gdb_test "break marker2 if (a==43)" \
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"Breakpoint.*at.* file .*$srcfile1, line.*"
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#
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# Check break involving inferior function call.
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# Ensure there is at least one additional breakpoint with higher VMA.
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#
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gdb_test "break marker3 if (multi_line_if_conditional(1,1,1)==0)" \
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"Breakpoint.*at.* file .*$srcfile1, line.*"
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gdb_test "break marker4" \
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"Breakpoint.*at.* file .*$srcfile1, line.*"
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#
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# check to see what breakpoints are set
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#
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if {$hp_aCC_compiler} {
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set marker1_proto "\\(void\\)"
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set marker2_proto "\\(int\\)"
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# Not checked.
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set marker3_proto "\\(char \\*, char \\*\\)"
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set marker4_proto "\\(long\\)"
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} else {
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set marker1_proto ""
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set marker2_proto ""
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set marker3_proto ""
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set marker4_proto ""
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}
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gdb_test "info break" \
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"Num Type\[ \]+Disp Enb Address\[ \]+What.*
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\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$bp_location6.*
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\[0-9\]+\[\t \]+breakpoint keep y.* in marker1$marker1_proto at .*$srcfile1:($bp_location15|$bp_location16).*
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\[\t \]+stop only if \\(1==1\\).*
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\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$bp_location1.*
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\[\t \]+stop only if \\(1==1\\).*
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\[0-9\]+\[\t \]+breakpoint keep y.* in marker2$marker2_proto at .*$srcfile1:($bp_location8|$bp_location9).*
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\[\t \]+stop only if \\(a==43\\).*
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\[0-9\]+\[\t \]+breakpoint keep y.* in marker3$marker3_proto at .*$srcfile1:($bp_location17|$bp_location18).*
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\[\t \]+stop only if \\(multi_line_if_conditional\\(1,1,1\\)==0\\).*
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\[0-9\]+\[\t \]+breakpoint keep y.* in marker4$marker4_proto at .*$srcfile1:($bp_location13|$bp_location14).*" \
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"breakpoint info"
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#
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# run until the breakpoint at main is hit.
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#
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rerun_to_main
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#
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# run until the breakpoint at a line number
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#
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gdb_test "continue" "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
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"run until breakpoint set at a line number"
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#
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# run until the breakpoint at marker1
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#
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# If the inferior stops at the first instruction of a source line, GDB
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# won't print the actual PC value; the source line is enough to
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# exactly specify the PC. But if the inferior is instead stopped in
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# the midst of a source line, GDB will include the PC in the
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# breakpoint hit message. This way, GDB always provides the exact
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# stop location, but avoids clutter when possible.
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#
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# Suppose you have a function written completely on one source line, like:
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# int foo (int x) { return 0; }
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# Setting a breakpoint at `foo' actually places the breakpoint after
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# foo's prologue.
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#
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# GCC's STABS writer always emits a line entry attributing the
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# prologue instructions to the line containing the function's open
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# brace, even if the first user instruction is also on that line.
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# This means that, in the case of a one-line function, you will get
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# two line entries in the debug info for the same line: one at the
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# function's entry point, and another at the first user instruction.
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# GDB preserves these duplicated line entries, and prefers the later
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# one; thus, when the program stops after the prologue, at the first
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# user instruction, GDB's search finds the second line entry, decides
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# that the PC is indeed at the beginning of a source line, and doesn't
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# print an address in the breakpoint hit message.
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#
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# GCC's Dwarf2 writer, on the other hand, squeezes out duplicate line
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# entries, so GDB considers the source line to begin at the start of
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# the function's prologue. Thus, if the program stops at the
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# breakpoint, GDB will decide that the PC is not at the beginning of a
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# source line, and will print an address.
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#
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# I think the Dwarf2 writer's behavior is arguably correct, but not
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# helpful. If the user sets a breakpoint at that source line, they
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# want that breakpoint to fall after the prologue. Identifying the
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# prologue's code with the opening brace is nice, but it shouldn't
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# take precedence over real code.
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#
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# Until the Dwarf2 writer gets fixed, I'm going to XFAIL its behavior.
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send_gdb "continue\n"
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gdb_expect {
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-re "Continuing\\..*Breakpoint \[0-9\]+, marker1 \\(\\) at .*$srcfile1:($bp_location15|$bp_location16).*($bp_location15|$bp_location16)\[\t \]+.*$gdb_prompt $" {
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pass "run until breakpoint at marker1"
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}
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-re "Continuing\\..*Breakpoint \[0-9\]+, $hex in marker1 \\(\\) at .*$srcfile1:($bp_location15|$bp_location16).*($bp_location15|$bp_location16)\[\t \]+.*$gdb_prompt $" {
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xfail "run until breakpoint at marker1"
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}
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-re "$gdb_prompt $" {
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fail "run until breakpoint at marker1"
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}
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timeout {
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fail "(timeout) run until breakpoint at marker1"
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}
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}
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# run until the breakpoint at marker2
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# Same issues here as above.
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setup_xfail hppa2.0w-*-* 11512CLLbs
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send_gdb "continue\n"
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gdb_expect {
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-re "Continuing\\..*Breakpoint \[0-9\]+, marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*($bp_location8|$bp_location9)\[\t \]+.*$gdb_prompt $" {
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pass "run until breakpoint at marker2"
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}
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-re "Continuing\\..*Breakpoint \[0-9\]+, $hex in marker2 \\(a=43\\) at .*$srcfile1:($bp_location8|$bp_location9).*($bp_location8|$bp_location9)\[\t \]+.*$gdb_prompt $" {
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xfail "run until breakpoint at marker2"
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}
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-re "$gdb_prompt $" {
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fail "run until breakpoint at marker2"
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}
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timeout {
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fail "(timeout) run until breakpoint at marker2"
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}
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}
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# Test combinations of conditional and thread-specific breakpoints.
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gdb_test "break main if (1==1) thread 999" \
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"Unknown thread 999\\."
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gdb_test "break main thread 999 if (1==1)" \
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"Unknown thread 999\\."
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# Verify that both if and thread can be distinguished from a breakpoint
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# address expression.
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gdb_test "break *main if (1==1) thread 999" \
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"Unknown thread 999\\."
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gdb_test "break *main thread 999 if (1==1)" \
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"Unknown thread 999\\."
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# Similarly for task.
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gdb_test "break *main if (1==1) task 999" \
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"Unknown task 999\\."
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gdb_test "break *main task 999 if (1==1)" \
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"Unknown task 999\\."
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# GDB accepts abbreviations for "thread" and "task".
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gdb_test "break *main if (1==1) t 999" \
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"Unknown thread 999\\."
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gdb_test "break *main if (1==1) th 999" \
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"Unknown thread 999\\."
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gdb_test "break *main if (1==1) ta 999" \
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"Unknown task 999\\."
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set test "run until breakpoint at marker3"
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gdb_test_multiple "continue" $test {
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-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 $" {
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pass $test
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}
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-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 $" {
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xfail $test
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}
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}
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set test "run until breakpoint at marker4"
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gdb_test_multiple "continue" $test {
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-re "Continuing\\..*Breakpoint \[0-9\]+, marker4 \\(d=177601976\\) at .*$srcfile1:($bp_location13|$bp_location14).*($bp_location13|$bp_location14)\[\t \]+.*$gdb_prompt $" {
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pass $test
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}
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-re "Continuing\\..*Breakpoint \[0-9\]+, $hex in marker4 \\(d=177601976\\) at .*$srcfile1:($bp_location13|$bp_location14).*($bp_location13|$bp_location14)\[\t \]+.*$gdb_prompt $" {
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xfail $test
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}
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}
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