/* A flag indicating that a description has already been fetched
from the target, so it should not be queried again. */
- int fetched;
+ bool fetched = false;
/* The description fetched from the target, or NULL if the target
did not supply any description. Only valid when
- target_desc_fetched is set. Only the description initialization
+ FETCHED is set. Only the description initialization
code should access this; normally, the description should be
accessed through the gdbarch object. */
- const struct target_desc *tdesc;
+ const struct target_desc *tdesc = nullptr;
+
+ /* If not empty, the filename to read a target description from, as set by
+ "set tdesc filename ...".
- /* The filename to read a target description from, as set by "set
- tdesc filename ..." */
+ If empty, there is not filename specified by the user. */
- char *filename;
+ std::string filename;
};
/* Get the inferior INF's target description info, allocating one on
get_tdesc_info (struct inferior *inf)
{
if (inf->tdesc_info == NULL)
- inf->tdesc_info = XCNEW (struct target_desc_info);
+ inf->tdesc_info = new target_desc_info;
+
return inf->tdesc_info;
}
int
target_desc_info_from_user_p (struct target_desc_info *info)
{
- return info != NULL && info->filename != NULL;
+ return info != nullptr && !info->filename.empty ();
}
/* See target-descriptions.h. */
struct target_desc_info *src = get_tdesc_info (srcinf);
struct target_desc_info *dest = get_tdesc_info (destinf);
- dest->fetched = src->fetched;
- dest->tdesc = src->tdesc;
- dest->filename = src->filename != NULL ? xstrdup (src->filename) : NULL;
+ *dest = *src;
}
/* See target-descriptions.h. */
void
target_desc_info_free (struct target_desc_info *tdesc_info)
{
- if (tdesc_info != NULL)
- {
- xfree (tdesc_info->filename);
- xfree (tdesc_info);
- }
+ delete tdesc_info;
}
-/* Convenience helper macros. */
-
-#define target_desc_fetched \
- get_tdesc_info (current_inferior ())->fetched
-#define current_target_desc \
- get_tdesc_info (current_inferior ())->tdesc
-#define target_description_filename \
- get_tdesc_info (current_inferior ())->filename
-
/* The string manipulated by the "set tdesc filename ..." command. */
static char *tdesc_filename_cmd_string;
void
target_find_description (void)
{
+ target_desc_info *tdesc_info = get_tdesc_info (current_inferior ());
+
/* If we've already fetched a description from the target, don't do
it again. This allows a target to fetch the description early,
during its to_open or to_create_inferior, if it needs extra
information about the target to initialize. */
- if (target_desc_fetched)
+ if (tdesc_info->fetched)
return;
/* The current architecture should not have any target description
/* First try to fetch an XML description from the user-specified
file. */
- current_target_desc = NULL;
- if (target_description_filename != NULL
- && *target_description_filename != '\0')
- current_target_desc
- = file_read_description_xml (target_description_filename);
+ tdesc_info->tdesc = nullptr;
+ if (!tdesc_info->filename.empty ())
+ tdesc_info->tdesc = file_read_description_xml (tdesc_info->filename.data ());
/* Next try to read the description from the current target using
target objects. */
- if (current_target_desc == NULL)
- current_target_desc = target_read_description_xml
+ if (tdesc_info->tdesc == nullptr)
+ tdesc_info->tdesc = target_read_description_xml
(current_inferior ()->top_target ());
/* If that failed try a target-specific hook. */
- if (current_target_desc == NULL)
- current_target_desc = target_read_description
+ if (tdesc_info->tdesc == nullptr)
+ tdesc_info->tdesc = target_read_description
(current_inferior ()->top_target ());
/* If a non-NULL description was returned, then update the current
architecture. */
- if (current_target_desc)
+ if (tdesc_info->tdesc != nullptr)
{
struct gdbarch_info info;
- gdbarch_info_init (&info);
- info.target_desc = current_target_desc;
+ info.target_desc = tdesc_info->tdesc;
if (!gdbarch_update_p (info))
warning (_("Architecture rejected target-supplied description"));
else
data = ((struct tdesc_arch_data *)
gdbarch_data (target_gdbarch (), tdesc_data));
- if (tdesc_has_registers (current_target_desc)
+ if (tdesc_has_registers (tdesc_info->tdesc)
&& data->arch_regs.empty ())
warning (_("Target-supplied registers are not supported "
"by the current architecture"));
/* Now that we know this description is usable, record that we
fetched it. */
- target_desc_fetched = 1;
+ tdesc_info->fetched = true;
}
/* Discard any description fetched from the current target, and switch
void
target_clear_description (void)
{
- struct gdbarch_info info;
+ target_desc_info *tdesc_info = get_tdesc_info (current_inferior ());
- if (!target_desc_fetched)
+ if (!tdesc_info->fetched)
return;
- target_desc_fetched = 0;
- current_target_desc = NULL;
+ tdesc_info->fetched = false;
+ tdesc_info->tdesc = nullptr;
- gdbarch_info_init (&info);
+ gdbarch_info info;
if (!gdbarch_update_p (info))
internal_error (__FILE__, __LINE__,
_("Could not remove target-supplied description"));
const struct target_desc *
target_current_description (void)
{
- if (target_desc_fetched)
- return current_target_desc;
+ target_desc_info *tdesc_info = get_tdesc_info (current_inferior ());
+
+ if (tdesc_info->fetched)
+ return tdesc_info->tdesc;
return NULL;
}
set_tdesc_filename_cmd (const char *args, int from_tty,
struct cmd_list_element *c)
{
- xfree (target_description_filename);
- target_description_filename = xstrdup (tdesc_filename_cmd_string);
+ target_desc_info *tdesc_info = get_tdesc_info (current_inferior ());
+
+ tdesc_info->filename = tdesc_filename_cmd_string;
target_clear_description ();
target_find_description ();
struct cmd_list_element *c,
const char *value)
{
- value = target_description_filename;
+ value = get_tdesc_info (current_inferior ())->filename.data ();
if (value != NULL && *value != '\0')
printf_filtered (_("The target description will be read from \"%s\".\n"),
static void
unset_tdesc_filename_cmd (const char *args, int from_tty)
{
- xfree (target_description_filename);
- target_description_filename = NULL;
+ target_desc_info *tdesc_info = get_tdesc_info (current_inferior ());
+
+ tdesc_info->filename.clear ();
target_clear_description ();
target_find_description ();
}
architecture's. This lets a GDB for one architecture generate C
for another architecture's description, even though the gdbarch
initialization code will reject the new description. */
- tdesc = current_target_desc;
- filename = target_description_filename;
+ target_desc_info *tdesc_info = get_tdesc_info (current_inferior ());
+ tdesc = tdesc_info->tdesc;
+ filename = tdesc_info->filename.data ();
}
else
{
architecture's. This lets a GDB for one architecture generate XML
for another architecture's description, even though the gdbarch
initialization code will reject the new description. */
- tdesc = current_target_desc;
+ tdesc = get_tdesc_info (current_inferior ())->tdesc;
}
else
{
add_basic_prefix_cmd ("tdesc", class_maintenance, _("\
Set target description specific variables."),
- &tdesc_set_cmdlist, "set tdesc ",
+ &tdesc_set_cmdlist,
0 /* allow-unknown */, &setlist);
add_show_prefix_cmd ("tdesc", class_maintenance, _("\
Show target description specific variables."),
- &tdesc_show_cmdlist, "show tdesc ",
+ &tdesc_show_cmdlist,
0 /* allow-unknown */, &showlist);
add_basic_prefix_cmd ("tdesc", class_maintenance, _("\
Unset target description specific variables."),
- &tdesc_unset_cmdlist, "unset tdesc ",
+ &tdesc_unset_cmdlist,
0 /* allow-unknown */, &unsetlist);
add_setshow_filename_cmd ("filename", class_obscure,
projects / thirdparty / binutils-gdb.git / blobdiff