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- Fix address changes of the ctors/dtors breakpoints w/multiple PCs (BZ

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301701).
- Delete an info doc file on `rpmbuild -bp' later rebuilt during `rpmbuild
    -bc'.
This commit is contained in:
Jan Kratochvil 2007-10-05 15:00:27 +00:00
parent 435483c64b
commit ddc50f97e3
3 changed files with 106 additions and 14 deletions
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83
gdb-6.3-ctorline-20050120.patch
View File

@ -36,6 +36,13 @@
(break_command_1, do_captured_breakpoint): Pass also the ADDR_STRING
variable to be updated.
2007-10-05 Jan Kratochvil <jan.kratochvil@redhat.com>
* breakpoint.c (breakpoint_sals_to_pc): Provide "%42" suffix to the
multiple-PC breakpoints' ADDR_STRINGs.
(breakpoint_re_set_one): New variables ID_S, ID, PC_LIST, NUM_PC_VALUES.
Parse the "%42" suffix of the multiple-PC breakpoints's ADDR_STRINGs.
Index: gdb-6.5/gdb/mi/mi-cmd-disas.c
===================================================================
--- gdb-6.5.orig/gdb/mi/mi-cmd-disas.c 2006-07-11 01:30:43.000000000 -0300
@ -479,7 +486,7 @@ Index: gdb-6.5/gdb/breakpoint.c
===================================================================
--- gdb-6.5.orig/gdb/breakpoint.c 2006-07-11 01:30:53.000000000 -0300
+++ gdb-6.5/gdb/breakpoint.c 2006-07-11 01:39:20.000000000 -0300
@@ -5268,12 +5268,69 @@ static void
@@ -5268,12 +5268,70 @@ static void
static void
breakpoint_sals_to_pc (struct symtabs_and_lines *sals,
@ -509,6 +516,7 @@ Index: gdb-6.5/gdb/breakpoint.c
+ xmalloc ((sals->nelts + num_pc_values - 1)
+ * sizeof (struct symtab_and_line));
+ char **new_addr_string;
+ char *addr_string_base;
+
+ /* Expand the SALS array. */
+ memcpy (new_sals, sals->sals, (i + 1)
@ -532,15 +540,15 @@ Index: gdb-6.5/gdb/breakpoint.c
+ * sizeof *new_addr_string);
+ memcpy (new_addr_string, *addr_string_p,
+ (i + 1) * sizeof *new_addr_string);
+ /* The existing *ADDR_STRING_P entry must be deleted for all the
+ multiple PCs as BREAKPOINT_RE_SET currently does not set all the
+ PCs for a sinle line back again. For NULL values "*0x%x" direct
+ address will be provided by CREATE_BREAKPOINTS. */
+ xfree ((*addr_string_p)[i]);
+ for (j = 0; j < num_pc_values; ++j)
+ {
+ new_addr_string[i + j] = NULL;
+ }
+ /* The existing *ADDR_STRING_P entry must be copied for all the
+ multiple PCs. BREAKPOINT_RE_SET will follow the new trailing "%id"
+ syntax so it will get resolved right even later. Do not use the
+ unambiguous NULL values (resolved to "0x%x" by CREATE_BREAKPOINTS)
+ as the address may change for the shared libraries. */
+ addr_string_base = (*addr_string_p)[i];
+ for (j = 0; j < num_pc_values; ++j)
+ new_addr_string[i + j] = xstrprintf ("%s%%%d", addr_string_base, j);
+ xfree (addr_string_base);
+ memcpy (&new_addr_string[i + num_pc_values], &(*addr_string_p)[i + 1],
+ (sals->nelts - (i + num_pc_values)) * sizeof *new_addr_string);
+ xfree (*addr_string_p);
@ -661,3 +669,58 @@ Index: gdb-6.5/gdb/breakpoint.c
void
break_command (char *arg, int from_tty)
{
@@ -7304,6 +7305,8 @@ breakpoint_re_set_one (void *bint)
int *not_found_ptr = NULL;
struct symtabs_and_lines sals;
char *s;
+ char *id_s;
+ int id = -1;
enum enable_state save_enable;
switch (b->type)
@@ -7364,11 +7367,44 @@ breakpoint_re_set_one (void *bint)
set_language (b->language);
input_radix = b->input_radix;
s = b->addr_string;
+ for (id_s = s + strlen (s) - 1; id_s >= s; id_s--)
+ {
+ if (isdigit (*id_s))
+ continue;
+ if (*id_s == '%')
+ break;
+ id_s = NULL;
+ break;
+ }
+ if (id_s >= s)
+ {
+ s = alloca (id_s - b->addr_string + 1);
+ memcpy (s, b->addr_string, id_s - b->addr_string);
+ s[id_s - b->addr_string] = 0;
+ id = atoi (id_s + 1);
+ }
sals = decode_line_1 (&s, 1, (struct symtab *) NULL, 0, (char ***) NULL,
not_found_ptr);
for (i = 0; i < sals.nelts; i++)
{
- resolve_sal_pc (&sals.sals[i]);
+ CORE_ADDR *pc_list;
+ int num_pc_values;
+
+ resolve_sal_pc_list (&sals.sals[i], &pc_list, &num_pc_values);
+ if (num_pc_values > 0)
+ {
+ if (id != -1)
+ {
+ /* The number of PC values should not usually change. */
+ if (id >= num_pc_values)
+ {
+ delete_breakpoint (b);
+ return 0;
+ }
+ sals.sals[i].pc = pc_list[id];
+ }
+ xfree (pc_list);
+ }
/* Reparse conditions, they might contain references to the
old symtab. */

29
gdb-6.3-test-dtorfix-20050121.patch
View File

@ -15,6 +15,11 @@ Index: gdb/testsuite/ChangeLog
* gdb.cp/constructortest.exp: Delete the FIXME workaround of restarting
the whole GDB.
2007-10-05 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.cp/constructortest.exp: Test BREAKPOINT_RE_SET for multiple PCs
by PIE.
--- gdb-6.3/gdb/testsuite/gdb.cp/constructortest.cc.fix Fri Jan 21 17:06:56 2005
+++ gdb-6.3/gdb/testsuite/gdb.cp/constructortest.cc Fri Jan 21 17:05:18 2005
@@ -0,0 +1,99 @@
@ -119,7 +124,7 @@ Index: gdb/testsuite/ChangeLog
+}
--- gdb-6.3/gdb/testsuite/gdb.cp/constructortest.exp.fix Fri Jan 21 17:07:02 2005
+++ gdb-6.3/gdb/testsuite/gdb.cp/constructortest.exp Fri Jan 21 17:05:29 2005
@@ -0,0 +1,127 @@
@@ -0,0 +1,145 @@
+# This testcase is part of GDB, the GNU debugger.
+
+# Copyright 2005, 2007 Free Software Foundation, Inc.
@ -150,7 +155,9 @@ Index: gdb/testsuite/ChangeLog
+set testfile "constructortest"
+set srcfile ${testfile}.cc
+set binfile ${objdir}/${subdir}/${testfile}
+if {[gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {
+# PIE is required for testing proper BREAKPOINT_RE_SET of the multiple-PC
+# breakpoints.
+if {[gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++ "additional_flags=-fpie -pie"}] != "" } {
+ return -1
+}
+
@ -242,10 +249,26 @@ Index: gdb/testsuite/ChangeLog
+# the $delete occurence
+
+gdb_load ${binfile}
+runto_main
+delete_breakpoints
+
+set first_line_dtor [gdb_get_line_number "First line ~C"]
+gdb_test "break $first_line_dtor" ".*$first_line_dtor.*$first_line_dtor.*Multiple breakpoints were set.*" "break by line in destructor"
+
+# Run to `main' where we begin our tests.
+# Set the breakpoints first to test PIE multiple-PC BREAKPOINT_RE_SET.
+# RUNTO_MAIN or RUNTO MAIN are not usable here as it runs DELETE_BREAKPOINTS.
+
+if ![gdb_breakpoint main] {
+ gdb_suppress_tests
+}
+gdb_run_cmd
+set test "running to main"
+gdb_test_multiple "" $test {
+ -re "Breakpoint \[0-9\]*, main .*$gdb_prompt $" {
+ pass $test
+ }
+}
+
+gdb_continue_to_breakpoint "First line ~C"
--- gdb-6.3/gdb/testsuite/gdb.cp/templates.exp.fix Fri Jan 21 17:07:10 2005
+++ gdb-6.3/gdb/testsuite/gdb.cp/templates.exp Fri Jan 21 17:09:09 2005

8
gdb.spec
View File

@ -11,7 +11,7 @@ Name: gdb
Version: 6.6
# The release always contains a leading reserved number, start it at 1.
Release: 30%{?dist}
Release: 31%{?dist}
License: GPL
Group: Development/Debuggers
@ -542,6 +542,8 @@ _FOO
# Remove the info and other generated files added by the FSF release
# process.
rm -f bfd/doc/*.info
rm -f bfd/doc/*.info-*
rm -f gdb/doc/*.info
rm -f gdb/doc/*.info-*
@ -687,6 +689,10 @@ fi
# don't include the files in include, they are part of binutils
%changelog
* Fri Oct 5 2007 Jan Kratochvil <jan.kratochvil@redhat.com> - 6.6-31
- Fix address changes of the ctors/dtors breakpoints w/multiple PCs (BZ 301701).
- Delete an info doc file on `rpmbuild -bp' later rebuilt during `rpmbuild -bc'.
* Tue Sep 25 2007 Jan Kratochvil <jan.kratochvil@redhat.com> - 6.6-30
- Fix re-setting of the ctors/dtors breakpoints with multiple PCs (BZ 301701).
- Avoid one useless user question in the core files locator (build-id).