/* Everything about breakpoints, for GDB.
- Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994
+ Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995
Free Software Foundation, Inc.
This file is part of GDB.
static void
disable_command PARAMS ((char *, int));
-static void
-disable_breakpoint PARAMS ((struct breakpoint *));
-
static void
enable_command PARAMS ((char *, int));
-static void
-enable_breakpoint PARAMS ((struct breakpoint *));
-
static void
map_breakpoint_numbers PARAMS ((char *, void (*)(struct breakpoint *)));
b? (tmp=b->next, 1): 0; \
b = tmp)
-/* By default no support for hardware watchpoints is assumed. */
+/* Provide defaults for systems that don't support hardware watchpoints. */
+
#ifndef TARGET_CAN_USE_HARDWARE_WATCHPOINT
+
+/* Returns non-zero if we can set a hardware watchpoint of type TYPE. TYPE is
+ one of bp_hardware_watchpoint, bp_read_watchpoint, bp_write_watchpoint, or
+ bp_hardware_breakpoint. CNT is the number of such watchpoints used so far
+ (including this one?). OTHERTYPE is who knows what... */
+
#define TARGET_CAN_USE_HARDWARE_WATCHPOINT(TYPE,CNT,OTHERTYPE) 0
+
+/* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes. TYPE is 1
+ for read and 2 for read/write accesses. Returns 0 for success, non-zero for
+ failure. */
+
#define target_remove_watchpoint(ADDR,LEN,TYPE) -1
#define target_insert_watchpoint(ADDR,LEN,TYPE) -1
#endif
/* Chain of all breakpoints defined. */
-static struct breakpoint *breakpoint_chain;
+struct breakpoint *breakpoint_chain;
/* Number of last breakpoint made. */
{
bpstat bs;
struct cleanup *old_chain;
+ struct command_line *cmd;
executing_breakpoint_commands = 1;
old_chain = make_cleanup (cleanup_executing_breakpoints, 0);
breakpoint_proceeded = 0;
for (; bs != NULL; bs = bs->next)
{
- while (bs->commands)
+ cmd = bs->commands;
+ while (cmd != NULL)
{
- char *line = bs->commands->line;
- bs->commands = bs->commands->next;
- execute_command (line, 0);
- /* If the inferior is proceeded by the command, bomb out now.
- The bpstat chain has been blown away by wait_for_inferior.
- But since execution has stopped again, there is a new bpstat
- to look at, so start over. */
- if (breakpoint_proceeded)
- goto top;
+ execute_control_command (cmd);
+ cmd = cmd->next;
}
+ if (breakpoint_proceeded)
+ /* The inferior is proceeded by the command; bomb out now.
+ The bpstat chain has been blown away by wait_for_inferior.
+ But since execution has stopped again, there is a new bpstat
+ to look at, so start over. */
+ goto top;
+ else
+ bs->commands = NULL;
}
executing_breakpoint_commands = 0;
/* The value has not changed. */
#define WP_VALUE_NOT_CHANGED 3
+#define BP_TEMPFLAG 1
+#define BP_HARDWAREFLAG 2
+
/* Check watchpoint condition. */
static int
int real_breakpoint = 0;
#endif
/* Root of the chain of bpstat's */
- struct bpstat root_bs[1];
+ struct bpstats root_bs[1];
/* Pointer to the last thing in the chain currently. */
bpstat bs = root_bs;
static char message1[] =
&& b->address != bp_addr)
continue;
+/* If defined, then we need to decr pc by this much after a hardware break-
+ point. Presumably should override DECR_PC_AFTER_BREAK, though it doesn't
+ now... */
+
#ifndef DECR_PC_AFTER_HW_BREAK
#define DECR_PC_AFTER_HW_BREAK 0
#endif
+
if (b->type == bp_hardware_breakpoint
&& b->address != (bp_addr - DECR_PC_AFTER_HW_BREAK))
continue;
while (l)
{
- fputs_filtered ("\t", gdb_stdout);
- fputs_filtered (l->line, gdb_stdout);
- fputs_filtered ("\n", gdb_stdout);
+ print_command_line (l, 4);
l = l->next;
}
}
{
struct minimal_symbol *m;
- m = lookup_minimal_symbol(func_name, (struct objfile *)NULL);
+ m = lookup_minimal_symbol_text (func_name, NULL, (struct objfile *)NULL);
if (m)
sal.pc = SYMBOL_VALUE_ADDRESS (m);
else
int i;
int thread;
- hardwareflag = flag & 2;
- tempflag = flag & 1;
+ hardwareflag = flag & BP_HARDWAREFLAG;
+ tempflag = flag & BP_TEMPFLAG;
sals.sals = NULL;
sals.nelts = 0;
b->cond_string = savestring (cond_start, cond_end - cond_start);
b->enable = enabled;
- b->disposition = tempflag ? delete : donttouch;
+ b->disposition = tempflag ? del : donttouch;
mention (b);
}
}
}
-#define BP_TEMPFLAG 1
-#define BP_HARDWAREFLAG 2
void
break_command (arg, from_tty)
char *arg;
scope_breakpoint->enable = enabled;
/* Automatically delete the breakpoint when it hits. */
- scope_breakpoint->disposition = delete;
+ scope_breakpoint->disposition = del;
/* Only break in the proper frame (help with recursion). */
scope_breakpoint->frame = prev_frame->frame;
b->type = bp_breakpoint;
b->cond = cond;
b->enable = enabled;
- b->disposition = tempflag ? delete : donttouch;
+ b->disposition = tempflag ? del : donttouch;
mention (b);
}
free ((PTR)sals.sals);
}
+/* Used by the gui, could be made a worker for other things. */
+
+struct breakpoint *
+set_breakpoint_sal (sal)
+struct symtab_and_line sal;
+{
+ struct breakpoint *b;
+ b = set_raw_breakpoint (sal);
+ set_breakpoint_count (breakpoint_count + 1);
+ b->number = breakpoint_count;
+ b->type = bp_breakpoint;
+ b->cond = 0;
+ b->thread = -1;
+ return b;
+}
+
#if 0
/* These aren't used; I don't know what they were for. */
/* Disable breakpoints on all catch clauses described in ARGS. */
bpstat bs;
{
for (; bs; bs = bs->next)
- if (bs->breakpoint_at && bs->breakpoint_at->disposition == delete
+ if (bs->breakpoint_at && bs->breakpoint_at->disposition == del
&& bs->stop)
delete_breakpoint (bs->breakpoint_at);
}
{
/* Ask user only if there are some breakpoints to delete. */
if (!from_tty
- || (breakpoint_chain && query ("Delete all breakpoints? ", 0, 0)))
+ || (breakpoint_chain && query ("Delete all breakpoints? ")))
{
/* No arg; clear all breakpoints. */
while (breakpoint_chain)
}
}
-static void
+void
enable_breakpoint (bpt)
struct breakpoint *bpt;
{
int target_resources_ok, other_type_used;
struct value *mark;
- if (enable_breakpoint_hook)
- enable_breakpoint_hook (bpt);
-
if (bpt->type == bp_hardware_breakpoint)
{
int i;
select_frame (save_selected_frame, save_selected_frame_level);
value_free_to_mark (mark);
}
+
+ if (modify_breakpoint_hook)
+ modify_breakpoint_hook (bpt);
}
/* ARGSUSED */
map_breakpoint_numbers (args, enable_breakpoint);
}
-static void
+void
disable_breakpoint (bpt)
struct breakpoint *bpt;
{
if (bpt->type == bp_watchpoint_scope)
return;
- if (disable_breakpoint_hook)
- disable_breakpoint_hook (bpt);
-
bpt->enable = disabled;
check_duplicates (bpt->address);
+
+ if (modify_breakpoint_hook)
+ modify_breakpoint_hook (bpt);
}
/* ARGSUSED */
struct breakpoint *bpt;
{
bpt->enable = enabled;
- bpt->disposition = delete;
+ bpt->disposition = del;
check_duplicates (bpt->address);
breakpoints_changed ();
"Synonym for ``info breakpoints''.");
}
-
-/* OK, when we call objfile_relocate, we need to relocate breakpoints
- too. breakpoint_re_set is not a good choice--for example, if
- addr_string contains just a line number without a file name the
- breakpoint might get set in a different file. In general, there is
- no need to go all the way back to the user's string (though this might
- work if some effort were made to canonicalize it), since symtabs and
- everything except addresses are still valid.
-
- Probably the best way to solve this is to have each breakpoint save
- the objfile and the section number that was used to set it (if set
- by "*addr", probably it is best to use find_pc_line to get a symtab
- and use the objfile and block_line_section for that symtab). Then
- objfile_relocate can call fixup_breakpoints with the objfile and
- the new_offsets, and it can relocate only the appropriate breakpoints. */
-
-#ifdef IBM6000_TARGET
-/* But for now, just kludge it based on the concept that before an
- objfile is relocated the breakpoint is below 0x10000000, and afterwards
- it is higher, so that way we only relocate each breakpoint once. */
-
-void
-fixup_breakpoints (low, high, delta)
- CORE_ADDR low;
- CORE_ADDR high;
- CORE_ADDR delta;
-{
- struct breakpoint *b;
-
- ALL_BREAKPOINTS (b)
- {
- if (b->address >= low && b->address <= high)
- b->address += delta;
- }
-}
-#endif
projects / deliverable / binutils-gdb.git / blobdiff