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* corefile.c (specify_exec_file_hook): Allow arbitrary number of

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hooks.
	(call_extra_exec_file_hooks): New function.
	* h8300-tdep.c: Lint; add .h files to provide missing declarations,
	remove unused variables.
	(set_machine_hook): New function.
	(_initialize_h8300m): Initialize it.

PR 8849.
This commit is contained in:
Mark Alexander
1996-04-22 22:31:10 +00:00
parent 6799c638e5
commit f9fedc48d1
3 changed files with 91 additions and 11 deletions
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59
gdb/corefile.c
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@@ -36,9 +36,23 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
extern char registers[];
/* Hook for `exec_file_command' command to call. */
/* Local function declarations. */
void (*exec_file_display_hook) PARAMS ((char *)) = NULL;
static void call_extra_exec_file_hooks PARAMS ((char *filename));
/* You can have any number of hooks for `exec_file_command' command to call.
If there's only one hook, it is set in exec_file_display hook.
If there are two or more hooks, they are set in exec_file_extra_hooks[],
and exec_file_display_hook is set to a function that calls all of them.
This extra complexity is needed to preserve compatibility with
old code that assumed that only one hook could be set, and which called
exec_file_display_hook directly. */
typedef void (*hook_type) PARAMS ((char *));
hook_type exec_file_display_hook; /* the original hook */
static hook_type *exec_file_extra_hooks; /* array of additional hooks */
static int exec_file_hook_count = 0; /* size of array */
/* Binary file diddling handle for the core file. */
@@ -67,6 +81,19 @@ core_file_command (filename, from_tty)
}
/* If there are two or more functions that wish to hook into exec_file_command,
* this function will call all of the hook functions. */
static void
call_extra_exec_file_hooks (filename)
char *filename;
{
int i;
for (i = 0; i < exec_file_hook_count; i++)
(*exec_file_extra_hooks[i])(filename);
}
/* Call this to specify the hook for exec_file_command to call back.
This is called from the x-window display code. */
@@ -74,7 +101,33 @@ void
specify_exec_file_hook (hook)
void (*hook) PARAMS ((char *));
{
exec_file_display_hook = hook;
hook_type *new_array;
if (exec_file_display_hook != NULL)
{
/* There's already a hook installed. Arrange to have both it
* and the subsequent hooks called. */
if (exec_file_hook_count == 0)
{
/* If this is the first extra hook, initialize the hook array. */
exec_file_extra_hooks = (hook_type *) xmalloc (sizeof(hook_type));
exec_file_extra_hooks[0] = exec_file_display_hook;
exec_file_display_hook = call_extra_exec_file_hooks;
exec_file_hook_count = 1;
}
/* Grow the hook array by one and add the new hook to the end.
Yes, it's inefficient to grow it by one each time but since
this is hardly ever called it's not a big deal. */
exec_file_hook_count++;
new_array =
(hook_type *) xrealloc (exec_file_extra_hooks,
exec_file_hook_count * sizeof(hook_type));
exec_file_extra_hooks = new_array;
exec_file_extra_hooks[exec_file_hook_count - 1] = hook;
}
else
exec_file_display_hook = hook;
}
/* The exec file must be closed before running an inferior.