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Make encode_actions_rsp use std::vector 

Currently, encode_actions_rsp returns two malloc'ed arrays of malloc'ed
strings (char *) by pointer.  Change this to use
std::vector<std::string>.  This eliminates some cleanups in remote.c.

Regtested on the buildbot.

gdb/ChangeLog:

	* tracepoint.h (class collection_list) <stringify>: Return
	std::vector<std::string>.
	(encode_actions_rsp): Change parameters to
	std::vector<std::string> *.
	* tracepoint.c (collection_list::stringify): Return
	std::vector<std::string> and adjust accordingly.
	(encode_actions_rsp): Changee parameters to
	std::vector<std::string> and adjust accordingly.
	* remote.c (free_actions_list),
	free_actions_list_cleanup_wrapper): Remove.
	(remote_download_tracepoint): Adjust to std::vector.
This commit is contained in:
Simon Marchi 2017-11-08 19:42:08 -05:00
parent dc8d2d90da
commit b44ec61915
4 changed files with 65 additions and 94 deletions
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14
gdb/ChangeLog
View File

@ -1,3 +1,17 @@
2017-11-08 Simon Marchi <simon.marchi@ericsson.com>
* tracepoint.h (class collection_list) <stringify>: Return
std::vector<std::string>.
(encode_actions_rsp): Change parameters to
std::vector<std::string> *.
* tracepoint.c (collection_list::stringify): Return
std::vector<std::string> and adjust accordingly.
(encode_actions_rsp): Changee parameters to
std::vector<std::string> and adjust accordingly.
* remote.c (free_actions_list),
free_actions_list_cleanup_wrapper): Remove.
(remote_download_tracepoint): Adjust to std::vector.
2017-11-08 Tom Tromey <tom@tromey.com>
* dwarf2read.c (symbolp): Remove typedef.

100
gdb/remote.c
View File

@ -12289,28 +12289,6 @@ remote_trace_init (struct target_ops *self)
error (_("Target does not support this command."));
}
static void free_actions_list (char **actions_list);
static void free_actions_list_cleanup_wrapper (void *);
static void
free_actions_list_cleanup_wrapper (void *al)
{
free_actions_list ((char **) al);
}
static void
free_actions_list (char **actions_list)
{
int ndx;
if (actions_list == 0)
return;
for (ndx = 0; actions_list[ndx]; ndx++)
xfree (actions_list[ndx]);
xfree (actions_list);
}
/* Recursive routine to walk through command list including loops, and
download packets for each command. */
@ -12359,20 +12337,14 @@ remote_download_tracepoint (struct target_ops *self, struct bp_location *loc)
CORE_ADDR tpaddr;
char addrbuf[40];
char buf[BUF_SIZE];
char **tdp_actions;
char **stepping_actions;
int ndx;
struct cleanup *old_chain = NULL;
std::vector<std::string> tdp_actions;
std::vector<std::string> stepping_actions;
char *pkt;
struct breakpoint *b = loc->owner;
struct tracepoint *t = (struct tracepoint *) b;
struct remote_state *rs = get_remote_state ();
encode_actions_rsp (loc, &tdp_actions, &stepping_actions);
old_chain = make_cleanup (free_actions_list_cleanup_wrapper,
tdp_actions);
(void) make_cleanup (free_actions_list_cleanup_wrapper,
stepping_actions);
tpaddr = loc->address;
sprintf_vma (addrbuf, tpaddr);
@ -12438,7 +12410,7 @@ remote_download_tracepoint (struct target_ops *self, struct bp_location *loc)
xsnprintf (buf + strlen (buf), BUF_SIZE - strlen (buf), ":X%x,",
aexpr->len);
pkt = buf + strlen (buf);
for (ndx = 0; ndx < aexpr->len; ++ndx)
for (int ndx = 0; ndx < aexpr->len; ++ndx)
pkt = pack_hex_byte (pkt, aexpr->buf[ndx]);
*pkt = '\0';
}
@ -12455,39 +12427,43 @@ remote_download_tracepoint (struct target_ops *self, struct bp_location *loc)
error (_("Target does not support tracepoints."));
/* do_single_steps (t); */
if (tdp_actions)
for (auto action_it = tdp_actions.begin ();
action_it != tdp_actions.end (); action_it++)
{
for (ndx = 0; tdp_actions[ndx]; ndx++)
{
QUIT; /* Allow user to bail out with ^C. */
xsnprintf (buf, BUF_SIZE, "QTDP:-%x:%s:%s%c",
b->number, addrbuf, /* address */
tdp_actions[ndx],
((tdp_actions[ndx + 1] || stepping_actions)
? '-' : 0));
putpkt (buf);
remote_get_noisy_reply ();
if (strcmp (rs->buf, "OK"))
error (_("Error on target while setting tracepoints."));
}
}
if (stepping_actions)
{
for (ndx = 0; stepping_actions[ndx]; ndx++)
{
QUIT; /* Allow user to bail out with ^C. */
xsnprintf (buf, BUF_SIZE, "QTDP:-%x:%s:%s%s%s",
b->number, addrbuf, /* address */
((ndx == 0) ? "S" : ""),
stepping_actions[ndx],
(stepping_actions[ndx + 1] ? "-" : ""));
putpkt (buf);
remote_get_noisy_reply ();
if (strcmp (rs->buf, "OK"))
error (_("Error on target while setting tracepoints."));
}
QUIT; /* Allow user to bail out with ^C. */
bool has_more = (action_it != tdp_actions.end ()
|| !stepping_actions.empty ());
xsnprintf (buf, BUF_SIZE, "QTDP:-%x:%s:%s%c",
b->number, addrbuf, /* address */
action_it->c_str (),
has_more ? '-' : 0);
putpkt (buf);
remote_get_noisy_reply ();
if (strcmp (rs->buf, "OK"))
error (_("Error on target while setting tracepoints."));
}
for (auto action_it = stepping_actions.begin ();
action_it != stepping_actions.end (); action_it++)
{
QUIT; /* Allow user to bail out with ^C. */
bool is_first = action_it == stepping_actions.begin ();
bool has_more = action_it != stepping_actions.end ();
xsnprintf (buf, BUF_SIZE, "QTDP:-%x:%s:%s%s%s",
b->number, addrbuf, /* address */
is_first ? "S" : "",
action_it->c_str (),
has_more ? "-" : "");
putpkt (buf);
remote_get_noisy_reply ();
if (strcmp (rs->buf, "OK"))
error (_("Error on target while setting tracepoints."));
}
if (packet_support (PACKET_TracepointSource) == PACKET_ENABLE)
{
if (b->location != NULL)
@ -12515,8 +12491,6 @@ remote_download_tracepoint (struct target_ops *self, struct bp_location *loc)
remote_download_command_source (b->number, loc->address,
breakpoint_commands (b));
}
do_cleanups (old_chain);
}
static int

40
gdb/tracepoint.c
View File

@ -1118,18 +1118,14 @@ collection_list::collection_list ()
/* Reduce a collection list to string form (for gdb protocol). */
char **
std::vector<std::string>
collection_list::stringify ()
{
char temp_buf[2048];
int count;
int ndx = 0;
char *(*str_list)[];
char *end;
long i;
count = 1 + 1 + m_memranges.size () + m_aexprs.size () + 1;
str_list = (char *(*)[]) xmalloc (count * sizeof (char *));
std::vector<std::string> str_list;
if (m_strace_data)
{
@ -1137,8 +1133,7 @@ collection_list::stringify ()
printf_filtered ("\nCollecting static trace data\n");
end = temp_buf;
*end++ = 'L';
(*str_list)[ndx] = savestring (temp_buf, end - temp_buf);
ndx++;
str_list.emplace_back (temp_buf, end - temp_buf);
}
for (i = sizeof (m_regs_mask) - 1; i > 0; i--)
@ -1158,8 +1153,7 @@ collection_list::stringify ()
sprintf (end, "%02X", m_regs_mask[i]);
end += 2;
}
(*str_list)[ndx] = xstrdup (temp_buf);
ndx++;
str_list.emplace_back (temp_buf);
}
if (info_verbose)
printf_filtered ("\n");
@ -1179,8 +1173,7 @@ collection_list::stringify ()
}
if (count + 27 > MAX_AGENT_EXPR_LEN)
{
(*str_list)[ndx] = savestring (temp_buf, count);
ndx++;
str_list.emplace_back (temp_buf, count);
count = 0;
end = temp_buf;
}
@ -1210,8 +1203,7 @@ collection_list::stringify ()
QUIT; /* Allow user to bail out with ^C. */
if ((count + 10 + 2 * m_aexprs[i]->len) > MAX_AGENT_EXPR_LEN)
{
(*str_list)[ndx] = savestring (temp_buf, count);
ndx++;
str_list.emplace_back (temp_buf, count);
count = 0;
end = temp_buf;
}
@ -1225,20 +1217,12 @@ collection_list::stringify ()
if (count != 0)
{
(*str_list)[ndx] = savestring (temp_buf, count);
ndx++;
str_list.emplace_back (temp_buf, count);
count = 0;
end = temp_buf;
}
(*str_list)[ndx] = NULL;
if (ndx == 0)
{
xfree (str_list);
return NULL;
}
else
return *str_list;
return str_list;
}
/* Add the printed expression EXP to *LIST. */
@ -1513,14 +1497,12 @@ encode_actions (struct bp_location *tloc,
/* Render all actions into gdb protocol. */
void
encode_actions_rsp (struct bp_location *tloc, char ***tdp_actions,
char ***stepping_actions)
encode_actions_rsp (struct bp_location *tloc,
std::vector<std::string> *tdp_actions,
std::vector<std::string> *stepping_actions)
{
struct collection_list tracepoint_list, stepping_list;
*tdp_actions = NULL;
*stepping_actions = NULL;
encode_actions (tloc, &tracepoint_list, &stepping_list);
*tdp_actions = tracepoint_list.stringify ();

5
gdb/tracepoint.h
View File

@ -269,7 +269,7 @@ public:
void finish ();
char **stringify ();
std::vector<std::string> stringify ();
const std::vector<std::string> &wholly_collected ()
{ return m_wholly_collected; }
@ -328,7 +328,8 @@ extern void encode_actions (struct bp_location *tloc,
struct collection_list *stepping_list);
extern void encode_actions_rsp (struct bp_location *tloc,
char ***tdp_actions, char ***stepping_actions);
std::vector<std::string> *tdp_actions,
std::vector<std::string> *stepping_actions);
extern void validate_actionline (const char *, struct breakpoint *);
extern void validate_trace_state_variable_name (const char *name);