diff options
| author | Justus Winter <justus@gnupg.org> | 2017-08-12 13:29:56 +0200 |
|---|---|---|
| committer | Justus Winter <justus@gnupg.org> | 2017-08-12 13:29:56 +0200 |
| commit | 0b96b98294901442de8196e21fff7c5fd79750ef (patch) | |
| tree | 984ca7c720f9f22eb24e94452f3bed1a37935c85 | |
| parent | 2996a4cfe987e6feb7c705354908ae2e59366d65 (diff) | |
ddb: Add magic variable $mapXX.
Maps '$mapXX' to a VM map structure address. @var{xx} is a task
identification number printed by a @code{show all tasks} command.
* ddb/db_task_thread.c (db_get_map): New function.
* ddb/db_task_thread.h (db_get_map): New declaration.
* ddb/db_variables.c (db_vars): Add new variable.
* doc/mach.texi: Document this.
| -rw-r--r-- | ddb/db_task_thread.c | 25 | ||||
| -rw-r--r-- | ddb/db_task_thread.h | 6 | ||||
| -rw-r--r-- | ddb/db_variables.c | 2 | ||||
| -rw-r--r-- | doc/mach.texi | 5 |
4 files changed, 38 insertions, 0 deletions
diff --git a/ddb/db_task_thread.c b/ddb/db_task_thread.c index 7927e674..f7fbb805 100644 --- a/ddb/db_task_thread.c +++ b/ddb/db_task_thread.c @@ -303,4 +303,29 @@ db_get_task_thread( return; } +/* + * convert $mapXXX type DDB variable to map address + */ +void +db_get_map(struct db_variable *vp, + db_expr_t *valuep, + int flag, + db_var_aux_param_t ap) +{ + task_t task; + + if (flag != DB_VAR_GET) { + db_error("Cannot set to $map variable\n"); + /* NOTREACHED */ + } + + if ((task = db_lookup_task_id(ap->suffix[0])) == TASK_NULL) { + db_printf("no such map($map%d)\n", ap->suffix[0]); + db_error(0); + /* NOTREACHED */ + } + + *valuep = (db_expr_t) task->map; +} + #endif /* MACH_KDB */ diff --git a/ddb/db_task_thread.h b/ddb/db_task_thread.h index cbb36802..55ab4f53 100644 --- a/ddb/db_task_thread.h +++ b/ddb/db_task_thread.h @@ -64,4 +64,10 @@ db_get_task_thread( int flag, db_var_aux_param_t ap); +extern void +db_get_map(struct db_variable *vp, + db_expr_t *valuep, + int flag, + db_var_aux_param_t ap); + #endif /* _DDB_DB_TASK_THREAD_H_ */ diff --git a/ddb/db_variables.c b/ddb/db_variables.c index 4442ccbc..0fd9bad0 100644 --- a/ddb/db_variables.c +++ b/ddb/db_variables.c @@ -61,6 +61,8 @@ struct db_variable db_vars[] = { { "thread", 0, db_set_default_thread }, { "task", 0, db_get_task_thread, 1, 2, -1, -1 }, + { "map", 0, db_get_map, + 1, 1, -1, -1 }, { "work", &db_work[0], FCN_NULL, 1, 1, 0, DB_NWORK-1 }, { "arg", 0, db_arg_variable, diff --git a/doc/mach.texi b/doc/mach.texi index b2357b81..913e8bbd 100644 --- a/doc/mach.texi +++ b/doc/mach.texi @@ -7155,6 +7155,11 @@ Task or thread structure address. @var{xx} and @var{yy} are task and thread identification numbers printed by a @code{show all threads} command respectively. This variable is read only. +@item map@var{xx} +VM map structure address. @var{xx} is a task identification number +printed by a @code{show all tasks} command. This variable is read +only. + @item thread The default target thread. The value is used when @code{t} option is specified without explicit thread structure address parameter in command |