(ambiguous_names_p): New fn.
(update_breakpoint_locations): When restoring bp enable status, don't
compare function names if any functions have same name.
* Makefile.in (breakpoint.o): Add hashtab.h dependency.
* gdb.cp/mb-inline.exp: New.
* gdb.cp/mb-inline.h: New.
* gdb.cp/mb-inline1.cc: New.
* gdb.cp/mb-inline2.cc: New.
+2008-02-07 Doug Evans <dje@google.com>
+
+ * breakpoint.c: #include "hashtab.h".
+ (ambiguous_names_p): New fn.
+ (update_breakpoint_locations): When restoring bp enable status, don't
+ compare function names if any functions have same name.
+ * Makefile.in (breakpoint.o): Add hashtab.h dependency.
+
2008-02-07 Joel Brobecker <brobecker@adacore.com>
* ada-lang.c (symbol_completion_add): Make SV parameter a VEC**
$(objfiles_h) $(source_h) $(linespec_h) $(completer_h) $(gdb_h) \
$(ui_out_h) $(cli_script_h) $(gdb_assert_h) $(block_h) $(solib_h) \
$(solist_h) $(observer_h) $(exceptions_h) $(gdb_events_h) \
- $(mi_common_h) $(memattr_h) $(ada_lang_h) $(top_h)
+ $(mi_common_h) $(memattr_h) $(ada_lang_h) $(top_h) $(hashtab_h)
bsd-kvm.o: bsd-kvm.c $(defs_h) $(cli_cmds_h) $(command_h) $(frame_h) \
$(regcache_h) $(target_h) $(value_h) $(gdbcore_h) $(gdb_assert_h) \
$(readline_h) $(bsd_kvm_h)
#include "defs.h"
#include <ctype.h>
+#include "hashtab.h"
#include "symtab.h"
#include "frame.h"
#include "breakpoint.h"
return 1;
}
+/* Subroutine of update_breakpoint_locations to simplify it.
+ Return non-zero if multiple fns in list LOC have the same name.
+ Null names are ignored. */
+
+static int
+ambiguous_names_p (struct bp_location *loc)
+{
+ struct bp_location *l;
+ htab_t htab = htab_create_alloc (13, htab_hash_string,
+ (int (*) (const void *, const void *)) streq,
+ NULL, xcalloc, xfree);
+
+ for (l = loc; l != NULL; l = l->next)
+ {
+ const char **slot;
+ const char *name = l->function_name;
+
+ /* Allow for some names to be NULL, ignore them. */
+ if (name == NULL)
+ continue;
+
+ slot = (const char **) htab_find_slot (htab, (const void *) name,
+ INSERT);
+ /* NOTE: We can assume slot != NULL here because xcalloc never returns
+ NULL. */
+ if (*slot != NULL)
+ {
+ htab_delete (htab);
+ return 1;
+ }
+ *slot = name;
+ }
+
+ htab_delete (htab);
+ return 0;
+}
+
static void
update_breakpoint_locations (struct breakpoint *b,
struct symtabs_and_lines sals)
/* If possible, carry over 'disable' status from existing breakpoints. */
{
struct bp_location *e = existing_locations;
+ /* If there are multiple breakpoints with the same function name,
+ e.g. for inline functions, comparing function names won't work.
+ Instead compare pc addresses; this is just a heuristic as things
+ may have moved, but in practice it gives the correct answer
+ often enough until a better solution is found. */
+ int have_ambiguous_names = ambiguous_names_p (b->loc);
+
for (; e; e = e->next)
{
if (!e->enabled && e->function_name)
{
struct bp_location *l = b->loc;
- for (; l; l = l->next)
- if (l->function_name
- && strcmp (e->function_name, l->function_name) == 0)
- {
- l->enabled = 0;
- break;
- }
+ if (have_ambiguous_names)
+ {
+ for (; l; l = l->next)
+ if (e->address == l->address)
+ {
+ l->enabled = 0;
+ break;
+ }
+ }
+ else
+ {
+ for (; l; l = l->next)
+ if (l->function_name
+ && strcmp (e->function_name, l->function_name) == 0)
+ {
+ l->enabled = 0;
+ break;
+ }
+ }
}
}
}
--- /dev/null
+# Copyright 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 <http://www.gnu.org/licenses/>.
+
+# This file is part of the gdb testsuite.
+
+# This test verifies that setting breakpoint on line in inline
+# function will fire in all instantiations of that function.
+
+if $tracelevel then {
+ strace $tracelevel
+}
+
+if { [skip_cplus_tests] } { continue }
+
+set prms_id 0
+set bug_id 0
+
+set testfile "mb-inline"
+set hdrfile "${testfile}.h"
+set srcfile1 "${testfile}1.cc"
+set objfile1 "${testfile}1.o"
+set srcfile2 "${testfile}2.cc"
+set objfile2 "${testfile}2.o"
+set binfile "${objdir}/${subdir}/${testfile}"
+
+if { [gdb_compile "$srcdir/$subdir/$srcfile1" "$objdir/$subdir/$objfile1" object {debug c++}] != "" } {
+ untested mb-inline.exp
+ return -1
+}
+
+if { [gdb_compile "$srcdir/$subdir/$srcfile2" "$objdir/$subdir/$objfile2" object {debug c++}] != "" } {
+ untested mb-inline.exp
+ return -1
+}
+
+if { [gdb_compile "$objdir/$subdir/$objfile1 $objdir/$subdir/$objfile2" "${binfile}" executable {debug c++}] != "" } {
+ untested mb-inline.exp
+ return -1
+}
+
+if [get_compiler_info ${binfile} "c++"] {
+ return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+set bp_location [gdb_get_line_number "set breakpoint here" $hdrfile]
+
+# Set a breakpoint with multiple locations.
+
+gdb_test "break $hdrfile:$bp_location" \
+ "Breakpoint.*at.* file .*$hdrfile, line.*\\(2 locations\\).*" \
+ "set breakpoint"
+
+gdb_run_cmd
+gdb_expect {
+ -re "Breakpoint \[0-9\]+,.*foo \\(i=0\\).*$gdb_prompt $" {
+ pass "run to breakpoint"
+ }
+ -re "$gdb_prompt $" {
+ fail "run to breakpoint"
+ }
+ timeout {
+ fail "run to breakpoint (timeout)"
+ }
+}
+
+gdb_test "continue" \
+ ".*Breakpoint.*foo \\(i=1\\).*" \
+ "run to breakpoint 2"
+
+# Try disabling a single location. We also test
+# that at least in simple cases, the enable/disable
+# state of locations survive "run".
+# Early bug would disable 1.1 and enable 1.2 when program is run.
+gdb_test "disable 1.2" "" "disabling location: disable"
+
+gdb_run_cmd
+gdb_expect {
+ -re "Breakpoint \[0-9\]+,.*foo \\(i=0\\).*$gdb_prompt $" {
+ pass "disabling location: run to breakpoint"
+ }
+ -re "$gdb_prompt $" {
+ fail "disabling location: run to breakpoint"
+ }
+ timeout {
+ fail "disabling location: run to breakpoint (timeout)"
+ }
+}
+
+gdb_test "continue" \
+ ".*Program exited normally.*" \
+ "continue with disabled breakpoint 1.2"
--- /dev/null
+/* Test gdb support for setting multiple file:line breakpoints on static
+ functions. In practice the functions may be inline fns compiled with -O0.
+ We avoid using inline here for simplicity's sake.
+
+ This testcase is part of GDB, the GNU debugger.
+
+ Copyright 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 <http://www.gnu.org/licenses/>.
+ */
+
+static int
+foo (int i)
+{
+ return i; // set breakpoint here
+}
+
+extern int afn ();
+extern int bfn ();
--- /dev/null
+/* Test gdb support for setting file:line breakpoints on inline fns.
+
+ This testcase is part of GDB, the GNU debugger.
+
+ Copyright 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include "mb-inline.h"
+
+int
+afn ()
+{
+ return foo (0);
+}
+
+int
+main ()
+{
+ int a = afn ();
+ int b = bfn ();
+ return a * b;
+}
--- /dev/null
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include "mb-inline.h"
+
+int
+bfn ()
+{
+ return foo (1);
+}
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