X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fgnu-nat.h;h=0e7ff8d5aa93f34afbd880e829bdd4569f489141;hb=refs%2Fheads%2Fconcurrent-displaced-stepping-2020-04-01;hp=f2f0f024877cd3493364eb42f215944b2fb4c87f;hpb=da59e08184255e09e51e54bb356e4448d33b2245;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/gnu-nat.h b/gdb/gnu-nat.h index f2f0f02487..0e7ff8d5aa 100644 --- a/gdb/gnu-nat.h +++ b/gdb/gnu-nat.h @@ -1,36 +1,54 @@ /* 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 - 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. */ + along with this program. If not, see . */ -#ifndef __GNU_NAT_H__ -#define __GNU_NAT_H__ +#ifndef GNU_NAT_H +#define GNU_NAT_H -#include +#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 +} +#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 + +#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); @@ -47,18 +65,18 @@ struct proc 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 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. */ + from program. */ - thread_state_data_t state; /* Registers, &c. */ - int state_valid:1; /* True if STATE is up to date. */ + 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 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 @@ -78,24 +96,98 @@ struct proc extern int __proc_pid (struct proc *proc); -/* 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. */ -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) - -#endif /* __GNU_NAT_H__ */ + 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 */