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2013-01-03 Pedro Alves <palves@redhat.com>

Browse source 
Tom Tromey  <tromey@redhat.com>
	PR cli/7221:
	* NEWS: Add "catch signal".
	* breakpoint.c (base_breakpoint_ops): No longer static.
	(bpstat_explains_signal): New function.
	(init_catchpoint): No longer static.
	(base_breakpoint_explains_signal): New function.
	(base_breakpoint_ops): Initialize new field.
	* breakpoint.h (enum bpstat_signal_value): New.
	(struct breakpoint_ops) <explains_signal>: New field.
	(bpstat_explains_signal): Remove macro, declare as function.
	(base_breakpoint_ops, init_catchpoint): Declare.
	* break-catch-sig.c: New file.
	* inferior.h (signal_catch_update): Declare.
	* infrun.c (signal_catch): New global.
	(handle_syscall_event): Update for change to
	bpstat_explains_signal.
	(handle_inferior_event): Likewise.  Always handle random signals
	via bpstats.
	(signal_cache_update): Check signal_catch.
	(signal_catch_update): New function.
	(_initialize_infrun): Initialize signal_catch.
	* Makefile.in (SFILES): Add break-catch-sig.c.
	(COMMON_OBS): Add break-catch-sig.o.
gdb/doc
	* gdb.texinfo (Set Catchpoints): Document "catch signal".
	(Signals): Likewise.
gdb/testsuite
	* gdb.base/catch-signal.c: New file.
	* gdb.base/catch-signal.exp: New file.
This commit is contained in:
Tom Tromey 2013-01-16 17:31:40 +00:00
parent 8ac3646fbb
commit ab04a2af2b
13 changed files with 971 additions and 137 deletions
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43
gdb/breakpoint.c
View file

@ -279,14 +279,9 @@ static struct bp_location **get_first_locp_gte_addr (CORE_ADDR address);
static int strace_marker_p (struct breakpoint *b);
static void init_catchpoint (struct breakpoint *b,
struct gdbarch *gdbarch, int tempflag,
char *cond_string,
const struct breakpoint_ops *ops);
/* The abstract base class all breakpoint_ops structures inherit
from. */
static struct breakpoint_ops base_breakpoint_ops;
struct breakpoint_ops base_breakpoint_ops;
/* The breakpoint_ops structure to be inherited by all breakpoint_ops
that are implemented on top of software or hardware breakpoints
@ -4152,6 +4147,29 @@ bpstat_find_breakpoint (bpstat bsp, struct breakpoint *breakpoint)
return NULL;
}
/* See breakpoint.h. */
enum bpstat_signal_value
bpstat_explains_signal (bpstat bsp)
{
enum bpstat_signal_value result = BPSTAT_SIGNAL_NO;
for (; bsp != NULL; bsp = bsp->next)
{
/* Ensure that, if we ever entered this loop, then we at least
return BPSTAT_SIGNAL_HIDE. */
enum bpstat_signal_value newval = BPSTAT_SIGNAL_HIDE;
if (bsp->breakpoint_at != NULL)
newval = bsp->breakpoint_at->ops->explains_signal (bsp->breakpoint_at);
if (newval > result)
result = newval;
}
return result;
}
/* Put in *NUM the breakpoint number of the first breakpoint we are
stopped at. *BSP upon return is a bpstat which points to the
remaining breakpoints stopped at (but which is not guaranteed to be
@ -8349,7 +8367,7 @@ syscall_catchpoint_p (struct breakpoint *b)
not NULL, then store it in the breakpoint. OPS, if not NULL, is
the breakpoint_ops structure associated to the catchpoint. */
static void
void
init_catchpoint (struct breakpoint *b,
struct gdbarch *gdbarch, int tempflag,
char *cond_string,
@ -12865,7 +12883,15 @@ base_breakpoint_decode_linespec (struct breakpoint *b, char **s,
internal_error_pure_virtual_called ();
}
static struct breakpoint_ops base_breakpoint_ops =
/* The default 'explains_signal' method. */
static enum bpstat_signal_value
base_breakpoint_explains_signal (struct breakpoint *b)
{
return BPSTAT_SIGNAL_HIDE;
}
struct breakpoint_ops base_breakpoint_ops =
{
base_breakpoint_dtor,
base_breakpoint_allocate_location,
@ -12884,6 +12910,7 @@ static struct breakpoint_ops base_breakpoint_ops =
base_breakpoint_create_sals_from_address,
base_breakpoint_create_breakpoints_sal,
base_breakpoint_decode_linespec,
base_breakpoint_explains_signal
};
/* Default breakpoint_ops methods. */