/* Common things used by the various *gnu-nat.c files
- Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+ Copyright (C) 1995-2020 Free Software Foundation, Inc.
-Written by Miles Bader <miles@gnu.ai.mit.edu>
+ Written by Miles Bader <miles@gnu.ai.mit.edu>
-The GNU Hurd is free software; you can redistribute it and/or
-modify it under the terms of the GNU General Public License as
-published by the Free Software Foundation; either version 2, or (at
-your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-The GNU Hurd is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#ifndef __GNU_NAT_H__
-#define __GNU_NAT_H__
+#ifndef GNU_NAT_H
+#define GNU_NAT_H
-#include <unistd.h>
+#include "defs.h"
+
+/* Work around conflict between Mach's 'thread_info' function, and GDB's
+ 'thread_info' class. Make the former available as 'mach_thread_info'. */
+#define thread_info mach_thread_info
+/* Mach headers are not yet ready for C++ compilation. */
+extern "C"
+{
#include <mach.h>
+}
+#undef thread_info
+/* Divert 'mach_thread_info' to the original Mach 'thread_info' function. */
+extern __typeof__ (mach_thread_info) mach_thread_info asm ("thread_info");
+
+#include <unistd.h>
+
+#include "inf-child.h"
struct inf;
-extern struct inf *current_inferior;
+extern struct inf *gnu_current_inf;
/* Converts a GDB pid to a struct proc. */
struct proc *inf_tid_to_thread (struct inf *inf, int tid);
+typedef void (inf_threads_ftype) (struct proc *thread, void *arg);
+
+/* Call F for every thread in inferior INF, passing ARG as second parameter. */
+void inf_threads (struct inf *inf, inf_threads_ftype *f, void *arg);
+
+/* Makes sure that INF's thread list is synced with the actual process. */
+int inf_update_procs (struct inf *inf);
+
/* A proc is either a thread, or the task (there can only be one task proc
because it always has the same TID, PROC_TID_TASK). */
struct proc
-{
- thread_t port; /* The task or thread port. */
- int tid; /* The GDB pid (actually a thread id). */
- int num; /* An id number for threads, to print. */
+ {
+ thread_t port; /* The task or thread port. */
+ int tid; /* The GDB pid (actually a thread id). */
+ int num; /* An id number for threads, to print. */
- mach_port_t saved_exc_port; /* The task/thread's real exception port. */
- mach_port_t exc_port; /* Our replacement, which for. */
+ mach_port_t saved_exc_port; /* The task/thread's real exception port. */
+ mach_port_t exc_port; /* Our replacement, which for. */
- int sc; /* Desired suspend count. */
- int cur_sc; /* Implemented suspend count. */
- int run_sc; /* Default sc when the program is running. */
- int pause_sc; /* Default sc when gdb has control. */
- int resume_sc; /* Sc resulting from the last resume. */
- int detach_sc; /* SC to leave around when detaching
- from program. */
+ int sc; /* Desired suspend count. */
+ int cur_sc; /* Implemented suspend count. */
+ int run_sc; /* Default sc when the program is running. */
+ int pause_sc; /* Default sc when gdb has control. */
+ int resume_sc; /* Sc resulting from the last resume. */
+ int detach_sc; /* SC to leave around when detaching
+ from program. */
- thread_state_data_t state; /* Registers, &c. */
- int state_valid : 1; /* True if STATE is up to date. */
- int state_changed : 1;
+ thread_state_data_t state; /* Registers, &c. */
+ int state_valid:1; /* True if STATE is up to date. */
+ int state_changed:1;
- int aborted : 1; /* True if thread_abort has been called. */
- int dead : 1; /* We happen to know it's actually dead. */
+ int aborted:1; /* True if thread_abort has been called. */
+ int dead:1; /* We happen to know it's actually dead. */
- /* Bit mask of registers fetched by gdb. This is used when we re-fetch
- STATE after aborting the thread, to detect that gdb may have out-of-date
- information. */
- unsigned long fetched_regs;
+ /* Bit mask of registers fetched by gdb. This is used when we re-fetch
+ STATE after aborting the thread, to detect that gdb may have out-of-date
+ information. */
+ unsigned long fetched_regs;
- struct inf *inf; /* Where we come from. */
+ struct inf *inf; /* Where we come from. */
- struct proc *next;
-};
+ struct proc *next;
+ };
/* The task has a thread entry with this TID. */
#define PROC_TID_TASK (-1)
extern int __proc_pid (struct proc *proc);
-extern thread_state_t proc_get_state (struct proc *proc, int will_modify);
+/* Return printable description of proc. */
+extern char *proc_string (struct proc *proc);
#define proc_debug(_proc, msg, args...) \
do { struct proc *__proc = (_proc); \
- debug ("{proc %d/%d %p}: " msg, \
- __proc_pid (__proc), __proc->tid, __proc , ##args); } while (0)
+ debug ("{proc %d/%d %s}: " msg, \
+ __proc_pid (__proc), __proc->tid, \
+ host_address_to_string (__proc) , ##args); } while (0)
-extern int gnu_debug_flag;
+extern bool gnu_debug_flag;
#define debug(msg, args...) \
do { if (gnu_debug_flag) \
- fprintf_unfiltered (gdb_stdlog, "%s: " msg "\r\n", __FUNCTION__ , ##args); } while (0)
+ fprintf_unfiltered (gdb_stdlog, "%s:%d: " msg "\r\n", \
+ __FILE__ , __LINE__ , ##args); } while (0)
+
+/* A prototype generic GNU/Hurd target. The client can override it
+ with local methods. */
+
+struct gnu_nat_target : public inf_child_target
+{
+ void attach (const char *, int) override;
+ bool attach_no_wait () override
+ { return true; }
+
+ void detach (inferior *, int) override;
+ void resume (ptid_t, int, enum gdb_signal) override;
+
+ ptid_t wait (ptid_t, struct target_waitstatus *, int) override;
+ enum target_xfer_status xfer_partial (enum target_object object,
+ const char *annex,
+ gdb_byte *readbuf,
+ const gdb_byte *writebuf,
+ ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len) override;
+
+ int find_memory_regions (find_memory_region_ftype func, void *data)
+ override;
+ void kill () override;
+
+ void create_inferior (const char *, const std::string &,
+ char **, int) override;
+ void mourn_inferior () override;
+ bool thread_alive (ptid_t ptid) override;
+ std::string pid_to_str (ptid_t) override;
+ void stop (ptid_t) override;
+
+ void inf_validate_procs (struct inf *inf);
+ void inf_suspend (struct inf *inf);
+ void inf_set_traced (struct inf *inf, int on);
+ void steal_exc_port (struct proc *proc, mach_port_t name);
+
+ /* Make sure that the state field in PROC is up to date, and return a
+ pointer to it, or 0 if something is wrong. If WILL_MODIFY is true,
+ makes sure that the thread is stopped and aborted first, and sets
+ the state_changed field in PROC to true. */
+ thread_state_t proc_get_state (struct proc *proc, int will_modify);
+
+private:
+ void inf_clear_wait (struct inf *inf);
+ void inf_cleanup (struct inf *inf);
+ void inf_startup (struct inf *inf, int pid);
+ int inf_update_suspends (struct inf *inf);
+ void inf_set_pid (struct inf *inf, pid_t pid);
+ void inf_steal_exc_ports (struct inf *inf);
+ void inf_validate_procinfo (struct inf *inf);
+ void inf_validate_task_sc (struct inf *inf);
+ void inf_restore_exc_ports (struct inf *inf);
+ void inf_set_threads_resume_sc (struct inf *inf,
+ struct proc *run_thread,
+ int run_others);
+ int inf_set_threads_resume_sc_for_signal_thread (struct inf *inf);
+ void inf_resume (struct inf *inf);
+ void inf_set_step_thread (struct inf *inf, struct proc *proc);
+ void inf_detach (struct inf *inf);
+ void inf_attach (struct inf *inf, int pid);
+ void inf_signal (struct inf *inf, enum gdb_signal sig);
+ void inf_continue (struct inf *inf);
+
+ struct proc *make_proc (struct inf *inf, mach_port_t port, int tid);
+ void proc_abort (struct proc *proc, int force);
+ struct proc *_proc_free (struct proc *proc);
+ int proc_update_sc (struct proc *proc);
+ kern_return_t proc_get_exception_port (struct proc *proc, mach_port_t * port);
+ kern_return_t proc_set_exception_port (struct proc *proc, mach_port_t port);
+ mach_port_t _proc_get_exc_port (struct proc *proc);
+ void proc_steal_exc_port (struct proc *proc, mach_port_t exc_port);
+ void proc_restore_exc_port (struct proc *proc);
+ int proc_trace (struct proc *proc, int set);
+};
+
+/* The final/concrete instance. */
+extern gnu_nat_target *gnu_target;
-#endif /* __GNU_NAT_H__ */
+#endif /* GNU_NAT_H */
projects / deliverable / binutils-gdb.git / blobdiff