diff options
author | Pedro Alves <pedro@codesourcery.com> | 2009-04-01 22:50:24 +0000 |
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committer | Pedro Alves <pedro@codesourcery.com> | 2009-04-01 22:50:24 +0000 |
commit | 04687403162fc6cd98679d98abfc7b34a2d44c83 (patch) | |
tree | 9ae485b713c21cbe224d34539c8980ad0db750e1 /gdb/gdbserver/spu-low.c | |
parent | c7d9ddfbfc71bdb63152defdc3cd38217bd2c84f (diff) | |
download | gdb-04687403162fc6cd98679d98abfc7b34a2d44c83.tar.gz |
2009-04-01 Pedro Alves <pedro@codesourcery.com>
Implement the multiprocess extensions, and add linux multiprocess
support.
* server.h (ULONGEST): Declare.
(struct ptid, ptid_t): New.
(minus_one_ptid, null_ptid): Declare.
(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_lwp)
(ptid_get_tid, ptid_equal, ptid_is_pid): Declare.
(struct inferior_list_entry): Change `id' type from unsigned from
to ptid_t.
(struct sym_cache, struct breakpoint, struct
process_info_private): Forward declare.
(struct process_info): Declare.
(current_process): Declare.
(all_processes): Declare.
(initialize_inferiors): Declare.
(add_thread): Adjust to use ptid_t.
(thread_id_to_gdb_id, thread_to_gdb_id, gdb_id_to_thread_id): Ditto.
(add_process, remove_process, find_thread_pid): Declare.
(find_inferior_id): Adjust to use ptid_t.
(cont_thread, general_thread, step_thread): Change type to ptid_t.
(multi_process): Declare.
(push_event): Adjust to use ptid_t.
(read_ptid, write_ptid): Declare.
(prepare_resume_reply): Adjust to use ptid_t.
(clear_symbol_cache): Declare.
* inferiors.c (all_processes): New.
(null_ptid, minus_one_ptid): New.
(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_lwp)
(ptid_get_tid, ptid_equal, ptid_is_pid): New.
(add_thread): Change unsigned long to ptid. Remove gdb_id
parameter. Adjust.
(thread_id_to_gdb_id, thread_to_gdb_id): Change unsigned long to ptid.
(gdb_id_to_thread): Rename to ...
(find_thread_pid): ... this. Change unsigned long to ptid.
(gdb_id_to_thread_id, find_inferior_id): Change unsigned long to ptid.
(loaded_dll, pull_pid_from_list): Adjust.
(add_process, remove_process, find_process_pid)
(get_thread_process, current_process, initialize_inferiors): New.
* target.h (struct thread_resume) <thread>: Change type to ptid_t.
(struct target_waitstatus) <related_pid>: Ditto.
(struct target_ops) <kill, detach>: Add `pid' argument. Change
return type to int.
(struct target_ops) <join>: Add `pid' argument.
(struct target_ops) <thread_alive>: Change pid's type to ptid_t.
(struct target_ops) <wait>: Add `ptid' field. Change return type
to ptid.
(kill_inferior, detach_inferior, join_inferior): Add `pid' argument.
(mywait): Add `ptid' argument. Change return type to ptid_t.
(target_pid_to_str): Declare.
* target.c (set_desired_inferior): Adjust to use ptids.
(mywait): Add new `ptid' argument. Adjust.
(target_pid_to_str): New.
* mem-break.h (free_all_breakpoints): Declare.
* mem-break.c (breakpoints): Delelete.
(set_breakpoint_at, delete_breakpoint, find_breakpoint_at)
(check_mem_read, check_mem_write, delete_all_breakpoints): Adjust
to use per-process breakpoint list.
(free_all_breakpoints): New.
* remote-utils.c (struct sym_cache) <name>: Drop `const'.
(symbol_cache, all_symbols_looked_up): Delete.
(hexchars): New.
(ishex, unpack_varlen_hex, write_ptid, hex_or_minus_one,
read_ptid): New.
(prepare_resume_reply): Change ptid argument's type from unsigned
long to ptid_t. Adjust. Implement W;process and X;process.
(free_sym_cache, clear_symbol_cache): New.
(look_up_one_symbol): Adjust to per-process symbol cache. *
* server.c (cont_thread, general_thread, step_thread): Change type
to ptid_t.
(attached): Delete.
(multi_process): New.
(last_ptid): Change type to ptid_t.
(struct vstop_notif) <ptid>: Change type to ptid_t.
(queue_stop_reply, push_event): Change `ptid' argument's type to
ptid_t.
(discard_queued_stop_replies): Add `pid' argument.
(start_inferior): Adjust to use ptids. Adjust to mywait interface
changes. Don't reference the `attached' global.
(attach_inferior): Adjust to mywait interface changes.
(handle_query): Adjust to use ptids. Parse GDB's qSupported
features. Handle and report "multiprocess+". Handle
"qAttached:PID".
(handle_v_cont): Adjust to use ptids. Adjust to mywait interface
changes.
(handle_v_kill): New.
(handle_v_stopped): Adjust to use target_pid_to_str.
(handle_v_requests): Allow multiple attaches and runs when
multiprocess extensions are in effect. Handle "vKill".
(myresume): Adjust to use ptids.
(queue_stop_reply_callback): Add `arg' parameter. Handle it.
(handle_status): Adjust to discard_queued_stop_replies interface
change.
(first_thread_of, kill_inferior_callback)
(detach_or_kill_inferior_callback, join_inferiors_callback): New.
(main): Call initialize_inferiors. Adjust to use ptids, killing
and detaching from all inferiors. Handle multiprocess packet
variants.
* linux-low.h: Include gdb_proc_service.h.
(struct process_info_private): New.
(struct linux_target_ops) <pid_of>: Use ptid_get_pid.
<lwpid_of>: Use ptid_get_lwp.
(get_lwp_thread): Adjust.
(struct lwp_info): Add `dead' member.
(find_lwp_pid): Declare.
* linux-low.c (thread_db_active): Delete.
(new_inferior): Adjust comment.
(inferior_pid): Delete.
(linux_add_process): New.
(handle_extended_wait): Adjust.
(add_lwp): Change unsigned long to ptid.
(linux_create_inferior): Add process to processes table. Adjust
to use ptids. Don't set new_inferior here.
(linux_attach_lwp): Rename to ...
(linux_attach_lwp_1): ... this. Add `initial' argument. Handle
it. Adjust to use ptids.
(linux_attach_lwp): New.
(linux_attach): Add process to processes table. Don't set
new_inferior here.
(struct counter): New.
(second_thread_of_pid_p, last_thread_of_process_p): New.
(linux_kill_one_lwp): Add `args' parameter. Handle it. Adjust to
multiple processes.
(linux_kill): Add `pid' argument. Handle it. Adjust to multiple
processes. Remove process from process table.
(linux_detach_one_lwp): Add `args' parameter. Handle it. Adjust
to multiple processes.
(any_thread_of): New.
(linux_detach): Add `pid' argument, and handle it. Remove process
from processes table.
(linux_join): Add `pid' argument. Handle it.
(linux_thread_alive): Change unsighed long argument to ptid_t.
Consider dead lwps as not being alive.
(status_pending_p): Rename `dummy' argument to `arg'. Filter out
threads we're not interested in.
(same_lwp, find_lwp_pid): New.
(linux_wait_for_lwp): Change `pid' argument's type from int to
ptid_t. Adjust.
(linux_wait_for_event): Rename to ...
(linux_wait_for_event_1): ... this. Change `pid' argument's type
from int to ptid_t. Adjust.
(linux_wait_for_event): New.
(linux_wait_1): Add `ptid' argument. Change return type to
ptid_t. Adjust. Use last_thread_of_process_p. Remove processes
that exit from the process table.
(linux_wait): Add `ptid' argument. Change return type to ptid_t.
Adjust.
(mark_lwp_dead): New.
(wait_for_sigstop): Adjust to use ptids. If a process exits while
stopping all threads, mark its main lwp as dead.
(linux_set_resume_request, linux_resume_one_thread): Adjust to use
ptids.
(fetch_register, usr_store_inferior_registers)
(regsets_fetch_inferior_registers)
(regsets_store_inferior_registers, linux_read_memory)
(linux_write_memory): Inline `inferior_pid'.
(linux_look_up_symbols): Adjust to use per-process
`thread_db_active'.
(linux_request_interrupt): Adjust to use ptids.
(linux_read_auxv): Inline `inferior_pid'.
(initialize_low): Don't reference thread_db_active.
* gdb_proc_service.h (struct ps_prochandle) <pid>: Remove.
* proc-service.c (ps_lgetregs): Use find_lwp_pid.
(ps_getpid): Return the pid of the current inferior.
* thread-db.c (proc_handle, thread_agent): Delete.
(thread_db_create_event, thread_db_enable_reporting): Adjust to
per-process data.
(find_one_thread): Change argument type to ptid_t. Adjust to
per-process data.
(maybe_attach_thread): Adjust to per-process data and ptids.
(thread_db_find_new_threads): Ditto.
(thread_db_init): Ditto.
* spu-low.c (spu_create_inferior, spu_attach): Add process to
processes table. Adjust to use ptids.
(spu_kill, spu_detach): Adjust interface. Remove process from
processes table.
(spu_join, spu_thread_alive): Adjust interface.
(spu_wait): Adjust interface. Remove process from processes
table. Adjust to use ptids.
* win32-low.c (current_inferior_tid): Delete.
(current_inferior_ptid): New.
(debug_event_ptid): New.
(thread_rec): Take a ptid. Adjust.
(child_add_thread): Add `pid' argument. Adjust to use ptids.
(child_delete_thread): Ditto.
(do_initial_child_stuff): Add `attached' argument. Add process to
processes table.
(child_fetch_inferior_registers, child_store_inferior_registers):
Adjust.
(win32_create_inferior): Pass 0 to do_initial_child_stuff.
(win32_attach): Pass 1 to do_initial_child_stuff.
(win32_kill): Adjust interface. Remove process from processes
table.
(win32_detach): Ditto.
(win32_join): Adjust interface.
(win32_thread_alive): Take a ptid.
(win32_resume): Adjust to use ptids.
(get_child_debug_event): Ditto.
(win32_wait): Adjust interface. Remove exiting process from
processes table.
Diffstat (limited to 'gdb/gdbserver/spu-low.c')
-rw-r--r-- | gdb/gdbserver/spu-low.c | 45 |
1 files changed, 29 insertions, 16 deletions
diff --git a/gdb/gdbserver/spu-low.c b/gdb/gdbserver/spu-low.c index ba27beb5d48..eb984101a06 100644 --- a/gdb/gdbserver/spu-low.c +++ b/gdb/gdbserver/spu-low.c @@ -268,6 +268,7 @@ static int spu_create_inferior (char *program, char **allargs) { int pid; + ptid_t ptid; pid = fork (); if (pid < 0) @@ -289,7 +290,10 @@ spu_create_inferior (char *program, char **allargs) _exit (0177); } - add_thread (pid, NULL, pid); + add_process (pid, 0); + + ptid = ptid_build (pid, pid, 0); + add_thread (ptid, NULL); return pid; } @@ -297,6 +301,8 @@ spu_create_inferior (char *program, char **allargs) int spu_attach (unsigned long pid) { + ptid_t ptid; + if (ptrace (PTRACE_ATTACH, pid, 0, 0) != 0) { fprintf (stderr, "Cannot attach to process %ld: %s (%d)\n", pid, @@ -305,27 +311,32 @@ spu_attach (unsigned long pid) _exit (0177); } - add_thread (pid, NULL, pid); + add_process (pid, 1); + ptid = ptid_build (pid, pid, 0); + add_thread (ptid, NULL); return 0; } /* Kill the inferior process. */ -static void -spu_kill (void) +static int +spu_kill (int) { ptrace (PTRACE_KILL, current_tid, 0, 0); + remove_process (pid); + return 0; } /* Detach from inferior process. */ static int -spu_detach (void) +spu_detach (int pid) { ptrace (PTRACE_DETACH, current_tid, 0, 0); + remove_process (pid); return 0; } static void -spu_join (void) +spu_join (int pid) { int status, ret; @@ -338,9 +349,9 @@ spu_join (void) /* Return nonzero if the given thread is still alive. */ static int -spu_thread_alive (unsigned long tid) +spu_thread_alive (ptid_t ptid) { - return tid == current_tid; + return ptid_get_lwp (ptid) == current_tid; } /* Resume process. */ @@ -350,8 +361,8 @@ spu_resume (struct thread_resume *resume_info, size_t n) size_t i; for (i = 0; i < n; i++) - if (resume_info[i].thread == -1 - || resume_info[i].thread == current_tid) + if (ptid_equal (resume_info[i].thread, minus_one_ptid) + || ptid_get_lwp (resume_info[i].thread) == current_tid) break; if (i == n) @@ -371,8 +382,8 @@ spu_resume (struct thread_resume *resume_info, size_t n) } /* Wait for process, returns status. */ -static unsigned long -spu_wait (struct target_waitstatus *ourstatus, int options) +static ptid_t +spu_wait (ptid_t ptid, struct target_waitstatus *ourstatus, int options) { int tid = current_tid; int w; @@ -415,7 +426,8 @@ spu_wait (struct target_waitstatus *ourstatus, int options) ourstatus->kind = TARGET_WAITKIND_EXITED; ourstatus->value.integer = WEXITSTATUS (w); clear_inferiors (); - return ret; + remove_process (ret); + return pid_to_ptid (ret); } else if (!WIFSTOPPED (w)) { @@ -423,7 +435,8 @@ spu_wait (struct target_waitstatus *ourstatus, int options) ourstatus->kind = TARGET_WAITKIND_SIGNALLED; ourstatus->value.sig = target_signal_from_host (WTERMSIG (w)); clear_inferiors (); - return ret; + remove_process (ret); + return pid_to_ptid (ret); } /* After attach, we may have received a SIGSTOP. Do not return this @@ -432,12 +445,12 @@ spu_wait (struct target_waitstatus *ourstatus, int options) { ourstatus->kind = TARGET_WAITKIND_STOPPED; ourstatus->value.sig = TARGET_SIGNAL_0; - return ret; + return ptid_build (ret, ret, 0); } ourstatus->kind = TARGET_WAITKIND_STOPPED; ourstatus->value.sig = target_signal_from_host (WSTOPSIG (w)); - return ret; + return ptid_build (ret, ret, 0); } /* Fetch inferior registers. */ |