1 2005-06-27 Jim Blandy <jimb@redhat.com>
3 Add support for the Linux NPTL (New POSIX Thread Library) thread
5 * arch.h, lwp-pool.c, lwp-pool.h, stock-breakpoints.c:
6 * stock-breakpoints.h: New files.
7 * gdbserv-thread-db.h (continue_lwp, singlestep_lwp, attach_lwp)
8 (stop_lwp): Move these ...
9 * lwp-ctrl.h: ... to here (new file).
10 * server.h (struct child_process): Include a pointer to the
11 architecture object, a breakpoint table, and a pointer to the
13 * linux-target.c: Create architecture objects for the i386 and
14 FRV, and describe breakpoints for those architectures.
16 [STOCK_BREAKPOINTS]: #include "stock-breakpoints.h".
17 (allocate_empty_arch): New function.
18 [X86_LINUX_TARGET] (stock_table_to_x86, x86_table_to_stock)
19 (stock_bp_to_x86, x86_bp_to_stock, x86_make_bp_table, x86_set_bp)
20 (x86_delete_bp, x86_bp_hit_p, x86_make_arch): New functions.
21 (MAKE_ARCH): #define to call x86_make_arch.
22 [X86_LINUX_TARGET] (stock_table_to_frv, frv_table_to_stock)
23 (stock_bp_to_frv, frv_bp_to_stock, frv_make_bp_table, frv_set_bp)
24 (frv_delete_bp, frv_bp_hit_p, frv_make_arch): New functions.
25 (MAKE_ARCH): #define to call frv_make_arch.
26 (linux_attach): If MAKE_ARCH is #defined, create an architecture
27 object for this process. And if we have an architecture object,
28 make a breakpoint table.
29 * thread-db.c: #include <assert.h>, "arch.h", "lwp-ctrl.h", and
31 (struct gdbserv_thread): Remove state-tracking flags 'attached',
32 'stopped', 'waited', and 'stepping'; all that state is handled
33 inside lwp-pool.c now.
34 (add_thread_to_list): Zero the entire newly allocated thread
36 (thread_list_lookup_by_lid): Prefer threads whose ti_lid values
37 are different from that of the main process.
38 (thread_db_state_str, thread_db_type_str): Don't include
39 formatting spaces here.
40 (thread_db_event_str): New function.
41 (thread_debug_name): New function.
42 (get_thread_signals): Return a value indicating success or failure.
43 (ignore_thread_signal): New function.
44 (using_thread_db_events, create_notification, death_notification)
45 (get_event_notification, set_event_breakpoint)
46 (insert_thread_db_event_breakpoints)
47 (delete_thread_db_event_breakpoints, request_thread_db_events)
48 (hit_thread_db_event_breakpoint, handle_thread_db_event): New
49 variables and functions, for using libthread_db's event interface.
50 (thread_db_open): Gather error-handling code next to the operation
51 that might fail. Decide here whether to use the signal-based
52 debugging interface, or the event-based debugging interface.
53 (stop_thread, stop_all_threads, struct event_list, pending_events)
54 (pending_events_listsize, pending_events_top, add_pending_event)
55 (select_pending_event, send_pending_signals, wait_all_threads):
56 Deleted; we now use lwp-pool.c for all this.
57 (attach_thread, continue_thread, continue_all_threads)
58 (singlestep_thread, thread_db_singlestep_program)
59 (thread_db_continue_thread, thread_db_singlestep_thread): Use the
60 lwp-pool.c functions, instead of calling the lwp manipulation
61 functions directly and managing state here. Keep track of the
63 (find_new_threads_callback): Always call attach_thread. If we're
64 using libthread_db events, enable event reporting for the new
66 (update_thread_list): Take the current child process as an
67 argument; if the current focus thread disappears, clear the
68 process's focus_thread pointer.
69 (thread_db_thread_next): Pass the current child process to
71 (thread_db_thread_info): Reformat thread descriptions. Mark
72 threads whose pid is equal to the process ID.
73 (thread_db_check_child_state): Use the lwp-pool functions, instead
74 of calling waitpid and the old stop-all-threads functions. If we
75 have a focus thread, only check for a status on that thread.
76 Check for libthread_db events. Use ignore_thread_signal, instead
78 (thread_db_break_program): New function.
79 (thread_db_attach): Register it as the target's 'break_program'
80 method. Always preload the symbol list with the names we'll need
81 for the signal-based interface, even if we have td_symbol_list.
82 Use lwp_pool_new_stopped to register the initial thread. Clear
84 * ptrace-target.c: #define _GNU_SOURCE and #include <sys/types.h>
85 and <linux/unistd.h>, to get declarations for the functions we
87 #include "lwp-ctrl.h".
88 (continue_lwp, singlestep_lwp, attach_lwp): Remove
89 unnecessary 'extern' keywords. Move pre-function comments to
90 lwp-ctrl.h. Take an ordinary 'pid_t', not an 'lwpid_t', since
91 we're calling ptrace / tkill, and that's what they expect; rename
92 arguments accordingly. Preserve value of errno across calls to
93 fprintf when reporting errors.
94 (kill_lwp): All the above, and use tkill system call if available.
95 * configure.in: Whenever we include thread-db.o in TARGET_MODULES,
96 also include lwp-pool.o.
97 On i386 and FRV Linux, use the stock-breakpoints module.
98 * config.in: Add template for STOCK_BREAKPOINTS.
99 * Makefile.am (EXTRA_rda_SOURCES): Include stock-breakpoints.c.
100 * Makefile.in, aclocal.m4, configure: Regenerated.
102 2005-03-11 Jim Blandy <jimb@redhat.com>
104 * linux-target.c (linux_get_reg) [GETREGS_SETREGS_REGINFO]: In the
105 NOREGS case, check that reginfo doesn't specify an offset outside
108 2005-03-10 Jim Blandy <jimb@redhat.com>
110 Compile with no warnings.
111 * Makefile.am (AM_CFLAGS): Compile with -Wall.
112 * Makefile.in: Regenerated.
113 * gdbserv-thread-db.h (stop_lwp, handle_waitstatus, ps_pdread,
114 ps_pdwrite): Add declarations for these functions to
116 * linux-target.c: #include <string.h>, <sys/types.h>, and
117 <sys/wait.h> to get declarations for system functions used in this
119 (linux_get_reg): When register REGNO doesn't exist, provide zeros
120 for its value; don't use an uninitialized pointer.
121 (linux_set_reg): Delete unused variables.
122 (decr_pc_after_break): Fix printf format directive to match
124 * ptrace-target.c (ptrace_read_user, ptrace_check_child_state,
125 ptrace_attach): Delete unused variables.
126 (ptrace_singlestep_program, ptrace_continue_program): Fix printf
127 format directive to match arguments.
128 * server.c (invalid_speed): Same.
129 (main): Initialize infd, outfd, and speed.
130 (tty_raw): Use proper name for speed_t "zero baud" value.
131 * thread-db.c: #include <string.h> and "gdbserv-utils.h", to get
132 declarations for functions used in this file.
133 (thread_db_open, wait_all_threads)
134 (thread_db_check_child_state, thread_db_get_thread_reg)
135 (thread_db_set_thread_reg): Fix printf format directive to match
137 (continue_thread, thread_db_get_thread_reg, continue_all_threads,
138 thread_db_attach): Delete unused variables.
140 * Makefile.in, aclocal.m4: Regenerated with automake 1.9.4.
142 Make config.in generated automatically again.
143 * configure.in: Provide descriptions for all the preprocessor
145 * configure: Regenerated.
146 * config.in: Regenerated using autoheader.
148 * linux-target.c (frv_fdpic_loadmap_addresses): Use '%lx' for
149 unsigned long argument.
151 2005-02-08 Kevin Buettner <kevinb@redhat.com
153 * thread-db.c (td_thr_tls_get_addr_p): New static global.
154 (thread_db_dlopen): Initialize ``td_thr_tls_get_addr_p''.
155 (thread_db_get_gen): Add support for qGetTLSAddr packet.
157 2004-12-13 Kevin Buettner <kevinb@redhat.com>
159 * thread-db.c (thread_db_get_thread_reg): Don't allow a successful
160 return without first initializing ``reg''.
161 (thread_db_set_thread_reg): Remove code intended to for
162 thread_db_get_thread_reg().
164 2004-12-09 Jim Blandy <jimb@redhat.com>
166 * aclocal.m4, configure: Regenerated.
168 2004-11-18 Kevin Buettner <kevinb@redhat.com>
170 * thread-db.c (thread_db_set_thread_reg): Don't allow a successful
171 return without first initializing ``reg''.
173 2004-10-20 Jim Blandy <jimb@redhat.com>
175 Use the libthread_db 'td_symbol_list' function to look up all the
176 symbols libthread_db will need when invited to by GDB.
177 * thread-db.c (add_symbol_to_list): Make 'name' argument const.
178 (td_symbol_list_p): New libthread_db function pointer.
179 (thread_db_dlopen): Initialize it.
180 (thread_db_attach): Use td_symbol_list to pre-load our symbol
181 cache with the names of all the symbols libthread_db will ever
184 * thread-db.c (thread_db_get_gen): There's no reason to try to
185 open a thread agent until we've at least requested values for all
186 the symbols we know about.
188 * server.c (usage): Don't include the entire pathname in the usage
191 2004-10-19 Jim Blandy <jimb@redhat.com>
193 * thread-db.c (get_thread_signals): Doc fix.
195 * thread-db.c (enum symbol_cache_defined): Move this definition
196 above that of (struct symbol_cache), and give it a name.
197 (struct symbol_cache): Use that enum as the type of 'defined_p', so
198 the debugger will print symbol cache entries more helpfully.
200 * ptrace-target.c (ptrace_create_child): Don't use sys_nerr to
201 check that errno is in a valid range. The use sys_nerr is
202 deprecated on GNU/Linux, and according to the ISO C standard and
203 POSIX, strerror always returns a valid string, even for invalid
206 2004-10-07 Jim Blandy <jimb@redhat.com>
208 * Makefile.am (rda_DEPENDENCIES): Add ../lib/librda.la.
209 * Makefile.in: Regenerated.
211 * server.c (main): Check for an error return from
214 2004-09-22 Jim Blandy <jimb@theseus.home>
216 * thread-db.c (thread_db_open, thread_db_get_gen): Doc fixes.
218 * thread-db.c (thread_db_detach, thread_db_set_gen,
219 thread_db_thread_id): Make these functions static.
221 2004-09-13 Jim Blandy <jimb@theseus.home>
223 * solaris-target.c (solaris_detach, solaris_attach): Change
224 "linux" to "solaris".
226 2004-08-11 Corinna Vinschen <vinschen@redhat.com>
228 * linux-target.c (linux_write_reg): Print process->pid in case of
231 2004-07-19 Kevin Buettner <kevinb@redhat.com>
233 * server.c (main): Set ``server_quit_p'' when debugged process
236 2004-06-03 Kevin Buettner <kevinb@redhat.com>
238 * server.c (main): Ensure that thread related realtime signals
241 2004-04-20 Kevin Buettner <kevinb@redhat.com>
243 * thread-db.c (lookup_sym): New function.
244 (thread_db_open): Print diagnostic message for failed dlopen()
245 call. Call lookup_sym() which will print diagnostic for failed
248 2004-04-20 Kevin Buettner <kevinb@redhat.com>
250 * server.c (main): Ignore realtime signals.
252 2004-04-05 Kevin Buettner <kevinb@redhat.com>
254 * linux-target.c (reginfo) [FRV_LINUX_TARGET]: Add support for
255 registers fsr0, acc0-acc7, accg0-accg7, msr0, msr1, gner0, gner1,
258 2004-03-19 Kevin Buettner <kevinb@redhat.com>
260 * ptrace-target.c (ptrace_exit_program): Cause main loop to exit.
261 * server.c (sys/types.h, sys/stat.h, fcntl.h, string.h, unistd.h)
262 (ctype.h, termios.h): Include.
263 (close_device, tty_raw, invalid_speed, parse_speed): New functions.
264 (speed_table): New static global.
265 (usage): Update usage message.
266 (main): Add support for connecting to serial devices.
268 2004-03-10 Kevin Buettner <kevinb@redhat.com>
270 * linux-target.c (enum regset): Add constant OTHERREGS.
271 (struct peekuser_pokeuser_reginfo): Add new field,
272 alternate_register_read_write_method. Adjust all initializers
274 (frv_fdpic_loadmap_addresses): New function.
275 (PTRACE_GETFDPIC, PTRACE_GETFDPIC_EXEC, PTRACE_GETFDPIC_INTERP):
277 (reginfo) [FRV_LINUX_TARGET]: Use slots 132 and 133 for the
280 2004-03-10 Kevin Buettner <kevinb@redhat.com>
282 * configure.in: Add "frv*linux*" to list of targets with thread
284 * configure: Regenerate.
285 * Makefile.in: Regenerate using "automake --cygnus --ignore-deps".
287 2004-03-10 Kevin Buettner <kevinb@redhat.com>
289 * ptrace-target.c (ptrace_create_child): Use vfork() instead of
290 fork(). Use PTRACE_ATTACH to attach to an existing process.
291 * server.c (usage): Update to include text about "-a".
292 (main): Allow use of -a switch to attach to an existing process.
294 2003-11-14 Kevin Buettner <kevinb@redhat.com>
296 * config.in (FRV_LINUX_TARGET): Add.
297 * configure.in (sys/user.h): Don't check for this header; it's
299 (frv*linux*): Add rudimentary support for FR-V Linux.
300 * linux-target.c (PEEKUSER_POKEUSER_REGINFO, NUM_REGS, PC_REGNUM)
301 (sign_extend, greg_offset_and_size, fpreg_offset_and_size)
302 (noreg_offset_and_size, reginfo) [FRV_LINUX_TARGET]: Define.
303 * configure, Makefile.in: Regenerate.
305 2003-09-10 Kevin Buettner <kevinb@redhat.com>
307 From Jimi Xenidis <jimix@watson.ibm.com>:
308 * linux-target.c (reginfo): The MQ register is for IBM POWER
309 (pre-PowerPC) architecture, and is undefined in PPC GNU/Linux
312 2003-05-09 Kevin Buettner <kevinb@redhat.com>
314 * linux-target.c (mips_singlestep): Don't any consider cop0 or cop1x
315 instructions to be conditional branches. Expand set of cop1
316 opcodes considered to be conditional branches.
318 2003-05-08 Kevin Buettner <kevinb@redhat.com>
320 * linux-target.c (mips_singlestep): Don't interpret all coprocessor
321 instructions as conditional branches.
323 2003-04-10 Kevin Buettner <kevinb@redhat.com>
325 * linux-target.c (NUM_REGS) [MIPS_LINUX_TARGET, MIPS64_LINUX_TARGET]:
327 (struct peekuser_pokeuser_reginfo) [MIPS_LINUX_TARGET]: Use
328 PROTO_SIZE for ``bad'' and ``cause''.
329 (struct peekuser_pokeuser_reginfo) [MIPS_LINUX_TARGET]
330 [MIPS64_LINUX_TARGET]: Add ``fir'' register.
332 2003-02-07 Kevin Buettner <kevinb@redhat.com>
334 * gdbserv-thread-db.h (singlestep_lwp): Add ``struct gdbserv *''
335 argument. Adjust all callers.
336 (mips_singlestep) [MIPS_LINUX_TARGET, MIPS64_LINUX_TARGET]: New
338 * linux-target.c (reginfo) [MIPS64_LINUX_TARGET]: Adjust some
339 of the fpregset/gregset related constants in this table.
340 (mips_get_reg): Add ``struct gdbserv *'' argument. Adjust all
342 (mips_addr_as_reg, mips_peek_instruction, mips_poke_instruction):
344 (mips_singlestep_program): Move bulk of implementation to and call...
345 (mips_singlestep): ...new function. This new function no longer
346 makes any direct PTRACE_PEEKTEXT or PTRACE_POKETEXT operations.
347 Shadow breakpoint information is also stored in a slightly different
349 * ptrace-target.c (server.h, ptrace-target.h): Adjust location
350 of #include statements so that gdbserv.h is included first.
351 (handle_waitstatus): Call ptrace_set_mem() instead of invoking
352 ptrace() directly. Also adjust code to use somewhat different
353 shadow breakpoint structs.
354 (ptrace_set_mem, ptrace_get_mem): Remove ``static'' qualifier
355 from function declarators.
356 (singlestep_lwp): Add ``struct gdbserv *'' argument.
357 * ptrace-target.h (ptrace_get_mem, ptrace_set_mem): Declare.
358 * server.c (gdbserv.h): Include.
359 * server.h (struct ss_save): Add field ``in_use''. Change
360 type of field ``ss_addr'' to struct ``gdbserv_reg''.
361 * thread-db.c (wait_all_threads): Revise diagnostic message to
362 print signal number for SIGDEBUG signal.
363 (singlestep_thread): Add ``struct gdbserv *'' argument. Adjust
366 2003-01-22 Kevin Buettner <kevinb@redhat.com>
368 * linux-target.c (struct peekuser_pokeuser_reginfo)
369 [MIPS64_LINUX_TARGET, MIPS_LINUX_TARGET]: Disable registers ``cause''
370 and ``bad'' since they are not writable via ptrace().
372 2003-01-19 Alexandre Oliva <aoliva@redhat.com>
374 * linux-target.c: Don't assume asm-mips/ is available, use just
377 2003-01-17 Kevin Buettner <kevinb@redhat.com>
379 * configure.in (mips64*linux*n64, mips64*linux*n32, mips64*linux*o32):
380 Remove cases. Instead, use compiler's preprocessor symbols to test
381 which ABI is being used.
382 * configure: Regenerate.
384 2003-01-16 Kevin Buettner <kevinb@redhat.com>
386 * config.in (LIBTHREAD_DB_SO): New macro.
387 * configure.in (mips64*linux*): Remove no-threads.o from
388 TARGET_MODULES list. Add thread-db.o to this list.
389 * configure: Regenerate.
391 2003-01-10 Kevin Buettner <kevinb@redhat.com>
393 * Makefile.in: Regenerate using "automake --cygnus --ignore-deps".
394 Someday, when ``depcomp'' is added to the top level, the
395 --ignore-deps flag can be discarded.
397 2002-12-18 Kevin Buettner <kevinb@redhat.com>
399 * ptrace-target.h, ptrace-target.c (ptrace_write_user)
400 (ptrace_read_user): Add struct gdbserv argument.
401 * linux-target.c: Fix all callers.
402 * ptrace-target.c (ptrace_write_user, ptrace_read_user): Add
404 (ptrace_xfer_mem): Fix debugging printf()s so that they'll print
405 useful results when sizeof (long long) is the same as
406 sizeof (ptrace_xfer_type).
407 (ptrace_xfer_mem): Decode address using gdbserv_host_bytes_from_reg()
408 instead of gdbserv_reg_to_ulong().
410 2002-12-02 Kevin Buettner <kevinb@redhat.com>
412 * linux-target.c (linux_get_reg, linux_set_reg, reg_from_regset)
413 (reg_to_regset, get_regset, put_regset reg_from_gregset)
414 (reg_to_gregset, reg_from_fpregset, reg_to_fpregset)
415 (reg_from_xregset, reg_to_xregset): Adjust all calls to
416 gdbserv_host_bytes_to_reg() and gdbserv_host_bytes_from_reg()
417 to account for change in interface. Remove code which is
418 no longer needed due to improvements in the aforementioned
420 (sign_extend): New constant.
421 (FPR_BASE, PC, CAUSE, BADVADDR, MMHI, MMLO, FPC_CSR, FPC_EIR):
422 Make sure these are defined.
423 (PROTO_SIZE): Define.
424 (reginfo) [MIPS_LINUX_TARGET]: Use PROTO_SIZE to initialize
425 table with size (width) of registers to use when communicating
427 (NUM_REGS, PC_REGNUM, reginfo) [MIPS64_LINUX_TARGET]: Define.
429 2002-11-19 Michael Snyder <msnyder@redhat.com>
431 * ptrace-target.c: Fix typo in copyright.
433 2002-08-23 Kevin Buettner <kevinb@redhat.com>
435 * linux-target.c (linux_get_reg, linux_set_reg): Print an
436 error message for out of bound registers.
438 2002-08-23 Kevin Buettner <kevinb@redhat.com>
440 * linux-target.c (NUM_REGS) [X86_LINUX_TARGET]: Bump to 42.
441 (getregs_setregs_reginfo) [X86_LINUX_TARGET]: Add entry for
442 register ``orig_eax''.
443 (linux_get_reg, linux_set_reg): Make sure ``regno'' value is valid.
444 (linux_detach, linux_attach, decr_pc_after_break): Call fprintf()
446 (linux_detach, linux_attach): Don't always print informational
448 * ptrace-target.c (handle_waitstatus, ptrace_detach, ptrace_attach):
449 Don't always print informational messages. Use fprintf() instead
451 (noop_get_trap_number, noop_compute_signal, noop_exit_program)
452 (noop_signlestep_program, noop_break_program): Delete.
453 (ptrace_flush_i_cache): Renamed from noop_flush_i_cache. Update
454 reference in ptrace_attach().
455 (continue_lwp, singlestep_lwp, attach_lwp, stop_lwp, ps_pstop)
456 (ps_continue, ps_lstop): Use fprintf() instead of printf().
457 * server.c (errno.h): Include.
458 (usage): New function.
459 (main): Add option processing code.
460 * server.h (struct child_process): Add new field,
461 ``debug_informational''.
462 * thread-db.c (ps_plog, select_pending_event, send_pending_signals)
463 (wait_all_threads, thread_db_check_child_state): Use fprintf()
465 (thread_db_detach): Conditionally print informational messages.
466 Use fprintf() instead of printf().
468 2002-08-21 Kevin Buettner <kevinb@redhat.com>
470 * Makefile.am, configure.in, dummy-target.c, linux-target.c,
471 ptrace-target.c, ptrace-target.h, server.h, solaris-target.c,
472 thread-db.c: Change ``libremote'' references into ``RDA''
474 * Makefile.in, configure: Regenerate.
476 2002-08-15 Kevin Buettner <kevinb@redhat.com>
478 * dummy-target.c, gdb_proc_service.h, gdbserv-thread-db.h,
479 linux-target.c, no-threads.c, ptrace-target.c,
480 ptrace-target.h, server.c, server.h, solaris-target.c,
481 thread-db.c: Update copyright notices.
483 2002-05-16 Kevin Buettner <kevinb@redhat.com>
485 * config.in (GREGSET_T): Renamed from GDB_GREGSET_T.
486 (FPREGSET_T): Renamed from GDB_FPREGSET_T.
487 * configure.in: Likewise.
488 * gdbserv-thread-db.h: Likewise.
489 * linux-target.c: Likewise.
490 * thread-db.c: Likewise.
491 * gdb_proc_service.h: Remove everything that's not absolutely
494 2002-02-01 Kevin Buettner <kevinb@redhat.com>
496 * configure.in (arm32): Change to ``yes''.
497 * configure: Regenerate.
499 2002-01-30 Kevin Buettner <kevinb@redhat.com>
501 * linux-target.c (linux_get_reg) [GETREGS_SETREGS_REGINFO]: Add
503 (linux_set_reg) [GETREGS_SETREGS_REGINFO]: Likewise.
505 2002-01-28 Kevin Buettner <kevinb@redhat.com>
507 * linux-target.c (write_reg_bytes): Print return status in
508 ptrace failure message.
509 * ptrace-target.c (ptrace_write_user): Enable existing
510 Linux/MIPS related kernel bug workaround when MIPS_LINUX_TARGET
511 is defined (which is in addition to _MIPSEL).
513 2002-01-28 Kevin Buettner <kevinb@redhat.com>
515 * thread-db.c (struct regset_cache): New struct declaration.
516 (thread_db_map_id2thr_cache_valid, fpregset_cache, gregset_cache):
518 (thread_db_map_id2thr, thread_db_invalidate_map_id2thr_cache)
519 (initialize_regset_cache, initialize_regset_caches)
520 (thread_db_flush_regset_cache, thread_db_flush_regset_caches)
521 (thread_db_get_regset, thread_db_set_regset)
522 (thread_db_invalidate_regset_cache, thread_db_invalidate_regset_caches)
523 (thread_db_invalidate_caches, thread_db_getfpregs)
524 (thread_db_set_fpregs, thread_db_getgregs, thread_db_setgregs)
525 (td_thr_getfpregs_wrapper, td_thr_getgregs_wrapper)
526 (td_thr_setfpregs_wrapper, td_thr_setgregs_wrapper):
528 (update_thread_list, thread_db_get_thread_reg)
529 (thread_db_set_thread_reg): Call thread_db_map_id2thr() instead of
530 td_ta_map_id2thr_p().
531 (thread_db_get_thread_reg): Call thread_db_getfpregs() instead
532 of td_thr_getfpregs_p(). Call thread_db_getgregs() instead of
534 (thread_db_set_thread_reg): Likewise. Also, call
535 thread_db_setfpregs() instead of td_thr_setfpregs_p() and
536 call thread_db_setgregs() instead of td_thr_setgregs_p().
537 (continue_thread, thread_db_continue_program)
538 (thread_db_singlestep_program, thread_db_continue_thread)
539 (singlestep_thread): Call thread_db_flush_regset_caches() at
540 beginning of function and thread_db_invalidate_caches() at
542 (thread_db_attach): Initialize regset caches.
544 2002-01-15 Kevin Buettner <kevinb@redhat.com>
546 * config.in (Generated automatically comment): Revise to note
547 that this file was generated automatically at one time, but is
549 (LINUX_TARGET, SOLARIS_TARGET): Fix comments.
550 (MIPS_LINUX_TARGET): Add.
551 * configure.in (i?86*linux*, powerpc*linux*, arm*linux*, mips*linux*):
552 Eliminate unnecessary duplication.
553 (mips*linux*): Target is MIPS_LINUX_TARGET, not SH_LINUX_TARGET.
554 * gdbserv-thread-db.h (is_gp_reg): New function.
555 (is_fp_reg, is_extended_reg): Revise comments.
556 * linux-target.c (enum regset): Add new constant NOREGS.
557 (is_gp_reg): New function.
558 (PEEKUSER_POKEUSER_REGINFO) [MIPS_LINUX_TARGET]: Define.
559 (SIZEOF_REGMAP, SIZEOF_MAPPEDREG) [MIPS_LINUX_TARGET]: Delete.
560 (NUM_REGS) [MIPS_LINUX_TARGET]: Change from 38 to 70 to account
561 for addition of floating point support.
562 (regmap) [MIPS_LINUX_TARGET]: Delete this array.
563 (is_fp_reg, is_extended_reg) [MIPS_LINUX_TARGET]: Delete.
564 (reginfo) [MIPS_LINUX_TARGET]: Define.
565 (DEBUG): Delete this macro definition.
566 (disp_gdb_mesg, ptrace_get_mem, ptrace_set_mem): Delete function
568 (linux_get_reg, linux_set_reg) [PEEKUSER_POKEUSER_REGINFO]: Add
570 (put_regset) [PEEKUSER_POKEUSER_REGINFO]: Add missing return
572 (mips_get_reg): Use read_reg_bytes() to fetch the register.
573 (mips_singlestep_program): Eliminate unused variables ``u_regs_base'',
574 ``temp_reg''. Fix fprintf related format warning.
575 * ptrace-target.h (ptrace_check_child_state): Declare.
576 * thread-db.c (thread_db_get_thread_reg, thread_db_set_thread_reg):
577 Handle case of target not supporting one or more registers.
579 2001-10-15 Kevin Buettner <kevinb@redhat.com>
581 * gdbserv-thread-db.h (is_extended_reg, reg_to_xregset)
582 (reg_from_xregset): New functions.
583 (debug_get_pc, decr_pc_after_break): Add declaration.
584 * linux-target.c (sys/procfs.h): Include.
585 (MAX_REG_SIZE): New anonymous enum constant.
586 (enum regset): New enum.
587 (getregs_setregs_reginfo, peekuser_pokeuser_reginfo): New structs.
588 (offsetof, fieldsize): New macros.
589 (ARM_LINUX_TARGET, X86_LINUX_TARGET, PPC_LINUX_TARGET): Deleted
590 old data structures defining register maps for these registers.
591 Replaced with new tables using either getregs_setregs_reginfo
592 or peekuser_pokeuser_reginfo structs. Other architectures
593 remain the same, though reoranized somewhat.
594 (linux_next_gg_reg, linux_gg_reg_nr): Revise comments. Use
595 NUM_REGS instead of NUM_G_PACKET_REGS.
596 (get_xregsetsize): New function.
597 (linux_reg_format, linux_sizeof_reg, is_fp_reg, is_extended_reg)
598 [PEEKUSER_POKEUSER_REGINFO, GETREGS_SETREGS_REGINFO]: New functions.
599 (read_reg_bytes, write_reg_bytes, debug_get_reg, debug_get_pc)
600 (linux_get_reg, linux_set_reg, reg_from_regset, reg_to_regset)
601 (reg_from_gregset, reg_to_gregset, reg_from_fpregset, reg_to_fpregset)
602 (reg_from_xregset, reg_to_xregset, get_regset, put_regset, get_gregset)
603 (put_gregset, get_fpregset, put_fpregset, get_xregset, put_xregset)
604 [PEEKUSER_POKEUSER_REGINFO]: New functions.
605 (read_reg_as_ulong, write_reg_as_ulong, debug_get_reg, debug_get_pc)
606 (linux_get_reg, linux_set_reg, regs_from_gregset, regs_to_gregset)
607 (reg_from_fpregset, reg_to_fpregset, reg_from_xregset, reg_to_xregset)
608 (get_gregset, put_gregset, get_fpregset, put_fpregset, get_xregset)
609 (put_xregset) [GETREGS_SETREGS_REGINFO]: New functions.
610 (linux_process_get_regs, linux_process_get_reg, linux_process_set_reg)
611 (linux_process_set_regs, ppc_linux_process_set_reg)
612 (ppc_linux_process_get_reg, ppc_linux_process_set_regs)
613 (ppc_linux_process_get_regs): Deleted.
614 (linux_attach): Reorganize initializations.
615 (generic_linux_set_reg): Renamed to linux_set_reg.
616 (generic_linux_get_reg): Renamed to linux_get_reg.
617 (generic_linux_sizeof_reg): Renamed to linux_sizeof_reg.
618 (generic_linux_gg_reg_nr): Renamed to linux_gg_reg_nr.
619 (generic_linux_next_gg_reg): Renamed to linux_next_gg_reg.
620 (generic_linux_reg_format): Renamed to linux_reg_format.
621 (decr_pc_after_break): Consolidated versions of this function
622 down to two; one for x86 and one for everything else. Also,
623 add ``serv'' parameter and fix all callers.
624 (debug_get_pc, debug_get_reg): Now only three versions of
625 this function, one for PEEKUSER_POKEUSER_REGINFO code,
626 one for GETREGS_SETREGS_REGINFO code, and one for legacy
627 code. Also, debug_get_pc() now takes a ``serv'' parameter.
629 (ps_lgetregs): Use new get_gregset() interface.
630 (ps_lsetregs): Use new put_gregset() interface.
631 (ps_lgetfpregs, ps_lsetfpregs, ps_lgetxregsize, ps_lgetxregs)
632 (ps_lsetxregs): Implement.
633 * ptrace-target.c (ptrace_read_user, ptrace_write_user): Make
634 ``buff'' argument of type ``void *'' instead of ``char *''.
635 (ptrace_get_gregs): Add new parameter ``alt_pid''.
636 (ptrace_set_gregs): Likewise.
637 (ptrace_get_fpregs): Add new parameter alt_pid. Also fix call
638 to ptrace() so parameters are in correct order.
639 (ptrace_set_fpregs): Likewise.
640 (ptrace_get_fpxregs, ptrace_set_fpxregs): New functions.
641 * ptrace-target.h (ptrace_write_user, ptrace_read_user)
642 (ptrace_get_gregs, ptrace_set_gregs, ptrace_get_fpregs)
643 (ptrace_set_fpregs, ptrace_get_fpxregs, ptrace_set_fpxregs):
645 * thread-db.c (td_thr_getxregsize_p, td_thr_getxregs_p)
646 (td_thr_setxregs_p): New function pointers.
647 (thread_db_dlopen): Initialize new function pointers.
648 (send_pending_signals): Add ``process'' parameter so that
649 decr_pc_after_break() can get the ``serv'' argument. Fix all
651 (thread_db_get_thread_reg, thread_db_set_thread_reg): Add xregset
654 2001-10-14 Kevin Buettner <kevinb@redhat.com>
656 * ptrace-target.c (unistd.h): Include.
657 (close_open_files): New function.
658 (ptrace_create_child): In newly forked child process, call
659 close_open_files() before invoking execv().
661 2001-10-13 Kevin Buettner <kevinb@redhat.com>
663 * server.c (signal.h): Include.
664 (chld_handler): New function.
665 (main): Establish chld_handler as the SIGCHLD signal handler.
666 Also, wait 1 second instead of 0 seconds to avoid busy waiting.
668 2001-09-26 Louis Hamilton <hamilton@redhat.com>
670 * configure.in: Use thread-db.c for ARM.
671 * configure: Regenerated.
672 * linux-target.c (ARM_R11, ARM_R12): Added to regmap[].
673 (ARM_FP, ARM_CPSR): Revised mappings of these ARM registers.
674 (debug_get_reg, debug_get_pc, decr_pc_after_break) [ARM_LINUX_TARGET]:
677 2001-09-20 Kevin Buettner <kevinb@redhat.com>
679 * configure.in: Use thread-db.c for Linux/PPC too.
680 * configure: Regenerated.
681 * linux-target.c (linux_read_reg): Add forward declaration.
682 (debug_get_reg, debug_get_pc, decr_pc_after_break) [PPC_LINUX_TARGET]:
685 2001-09-20 Kevin Buettner <kevinb@redhat.com>
687 * linux-target.c (SIZEOF_MAPPEDREG) [PPC_LINUX_TARGET]: Add comment.
688 (PC_REGNUM) [PPC_LINUX_TARGET]: Remove FIXME comment.
689 (is_fp_reg) [PPC_LINUX_TARGET]: Revise upper bound on floating
690 point register numbers.
691 (ppc_linux_getset_reg): Rewritten to use regmap[] to fetch
692 ptrace() offsets. This'll handle the (previously unsupported)
693 floating point registers, cr, lr, ctr, and xer.
694 (ppc_linux_process_set_regs, ppc_linux_process_get_regs): Don't
695 hardcode loop upper bound.
696 (ppc_linux_process_get_regs): Revise declarator to match
697 process_get_regs member in struct gdbserv_target.
699 2001-09-18 Andrew Haley <aph@cambridge.redhat.com>
701 * server.c (main): Work around SIGCHLD problem.
703 2001-08-05 Michael Chastain <chastain@redhat.com>
705 * ptrace-target.c (ptrace_write_user): Ignore ESRCH on MIPS,
706 because mips linux kernel 2.4 has a bug where PTRACE_POKEUSER
707 returns -ESRCH even when it succeeds.
709 2001-08-03 Michael Keezer <mkeezer@redhat.com>
711 * configure.in: Add am33_2.0 & mn10300.
712 * config.in: Add AM33_LINUX_TARGET & AM33_2_0_LINUX_TARGET.
713 * linux-target.c: am33_2.0 & mn10300 support.
715 2001-07-23 David Howells <dhowells@redhat.com>
717 * ptrace-target.c: Added big-endian MIPS support.
718 * linux-target.c: ditto.
721 2001-06-25 Michael Snyder <msnyder@redhat.com>
723 * ptrace-target.c (ptrace_compute_signal): Implement conversion
724 from native signals to GDB's signal numbering.
725 (ptrace_process_signal): Implement conversion from GDB's signal
726 numbering to native signals.
727 (stop_lwp): Comment out debugging output of SIGSTOP signals.
728 * linix-target.c (linux_fromtarget_break): Call compute_signal.
729 (linux_fromtarget_terminate): Ditto.
730 * thread-db.c (thread_db_check_child_state): Don't do any conversion
731 when passing a signal directly back to the inferior; just copy from
732 stop_signal to signal_to_send.
733 (thread_db_fromtarget_thread_break): Convert signal from native
734 numbering to GDB's numbering.
736 2001-06-18 Michael Snyder <msnyder@redhat.com>
738 * linux-target.c (generic_linux_set_reg): Fix typo.
739 (decr_pc_after_break): Mute the debugging output.
741 2001-06-15 Michael Snyder <msnyder@redhat.com>
743 * thread_db.c: Disable noisy debugging output.
744 (select_pending_event): Add new selection criterion, giving
745 preference to a thread that is being single-stepped. This
746 avoids the problem of deciding whether to decrement the pc if
747 we don't know whether a SIGTRAP was caused by stepping or by
748 hitting a breakpoint.
750 2001-06-14 Michael Snyder <msnyder@redhat.com>
752 * thread-db.c (thread_db_set_gen, thread_db_get_gen): Rewrite
753 syntax for qSymbol messages.
754 * gdb_proc_service.h: New file.
755 * Makefile.am (INCLUDES): Remove $(srcdir)/../../include.
756 * Makefile.in: Regenerate.
758 2001-05-31 Michael Snyder <msnyder@redhat.com>
760 * thread-db.c (add_thread_to_list): Return explicit value!
762 2001-05-23 Jackie Smith Cashion <jsmith@redhat.com>
764 * linux-target.c: Change MIPS SIZEOF_MAPPEDREG from 1 to 4.
765 (linux_register_offset): For MIPS return regmap[regnum] instead of
766 SIZEOF_MAPPEDREG * regmap[regnum].
767 (mips_get_reg): Pass pid as argument to ptrace_read_user instead of
770 2001-05-22 Michael Snyder <msnyder@redhat.com>
772 * no-threads.c: New file.
773 * configure.in: Use thread-db.c only for specified architectures,
774 (including x86); otherwise default to using no-threads.c.
775 * configure: Regenerate.
777 2001-05-10 Martin M. Hunt <hunt@redhat.com>
779 * linux-target.c (is_fp_reg): New function for mips.
782 Merged changes from symbol branch with appropriate modifications.
784 Mon Mar 26 08:54:41 PST 2001 Brendan Conoboy <blc@redhat.com>
786 * configure.in: Added mipsvr4181el* target
787 * configure: regenerate
789 2001-01-26 Rudy Folden <rfolden@redhat.com>
791 * server.c: Changed name from gdbgeneral_xxx to gdbconnect_xx.
793 2001-01-24 Rudy Folden <rfolden@redhat.com>
795 * configure: Added mipsel* target.
796 * linux-target.c: Add support for MIPS processor, including single-
797 stepping which doesn't exist in mips ptrace.
798 * ptrace-target.c (ptrace_handle_waitstatus): Added single-stepping
799 instruction restore for mips.
800 (ptrace_attach): Added single stepping initialization code.
801 * server (main): Added generic interfaces, gdbgeneral_startup/shutdown
802 for serial or tcp/ip selection. Also added server_quit_p to X and W
803 for serial support (no socket shutdown).
804 * server.h (child_process): Added mips instruction save area for
807 2001-01-10 Rudy Folden <rfolden@redhat.com>
808 * ptrace-target.c (enum): Added U_REGS_OFFSET to processor
811 2001-04-26 Michael Snyder <msnyder@redhat.com>
813 * linux-target.c (is_fp_reg): New function.
814 (reg_from_fpregset, reg_to_fpregset): New functions.
815 Support for thread_db_get_thread_reg floating point regs.
816 * thread-db.c (thread_db_get_thread_reg, thread_db_set_thread_reg):
817 Infrastructure for support of floating point regs.
818 (Attach_thread): New function, abstracted from below.
819 (find_new_threads_callback): Call attach_thread.
820 (stop_thread): New function, abstracted from stop_all_threads.
821 (stop_all_threads): Call stop_thread.
822 (continue_thread): Test for lwp == 0 before calling continue_lwp.
823 * ptrace-target.c (stop_lwp): New function.
824 * gdbserv-thread-db.h (reg_to_regnum, reg_from_regnu): Declare.
826 2001-04-25 Michael Snyder <msnyder@redhat.com>
828 Move all ptrace references out of thread-db.c.
829 * gdbserv-thread-db.h: New file.
830 * thread-db.c (struct ps_prochandle): Move to gdbserv-thread-db.h.
831 (gdb_ps_prochandle_t): Ditto.
832 (gdb_ps_read_buf_t, gdb_ps_write_buf_t, gdb_ps_size_t): Ditto.
833 (ps_pstop, ps_pcontinue): Move to ptrace-target.c.
834 (ps_lstop, ps_lcontinue): Ditto.
835 (ps_pdread, ps_pdwrite, ps_ptread, ps_ptwrite): Ditto.
836 (ps_lgetxregsize): Move to linux-target.c.
837 (ps_lgetxregs, ps_lsetxregs, ps_getpid): Ditto.
838 (ps_lgetregs, ps_lsetregs, ps_lgetfpregs, ps_lsetfpregs): Ditto.
839 (find_new_threads_callback): Abstract attach bits into new function
840 attach_lwp, and move that to ptrace-target.c.
841 (wait_all_threads): Call continue_lwp instead of ptrace.
842 (continue_pid): Rename as continue_lwp, move into ptrace-target.c.
843 (singlestep_pid): Rename as continue_lwp, move into ptrace-target.c.
844 (struct symbol_cache): Change value to a paddr_t.
845 (add_symbol_to_list, lookup_cached_symbol): Ditto.
846 * linux-target.c (ps_lgetregs, ps_lsetregs, ps_lgetfpregs,
847 ps_lsetfpregs, ps_lgetxregsize, ps_lgetxregs, ps_lsetxregs,
848 ps_getpid): Moved to here from thread-db.c.
849 * ptrace-target.c (continue_lwp, singlestep_lwp, attach_lwp,
850 (ps_pstop, ps_pcontinue, ps_lstop, ps_lcontinue, ps_pdread,
851 ps_pdwrite, ps_ptread, ps_ptwrite): Moved here from thread-db.c.
852 (ptrace_handle_waitstatus): Renamed as handle_waitstatus.
853 (ps_lcontinue): Implement (untested).
854 * server.c (main): Check server_quit_p after calling gdbloop_poll.
857 2001-04-24 Michael Snyder <msnyder@redhat.com>
859 * thread-db.c (continue_pid, continue_thread): New functions.
860 (singlestep_pid, singlestep_thread): New functions.
861 (continue_all_threads): Use new function continue_thread.
862 (thread_db_continue_program): Ditto.
863 (thread_db_singlestep_program): Ditto.
864 (thread_db_continue_thread): Ditto.
865 (thread_db_singlestep_thread): Ditto.
867 * thread-db.c: Remove some debugging printfs.
868 Add activation and handling of the thread debug signal.
869 (get_thread_signals): Get the debug signal as well as the others.
870 Set target flag to activate the debug signal.
871 (set_target_int_by_name): New function.
872 (struct gdbserv_thread): Rename "sigstopped" flag to just "stopped".
873 (stop_all_threads): Mark the event thread "stopped".
874 (wait_all_threads): Mark the event thread "waited".
875 Don't stash the debug signal (throw it away).
876 (continue_all_threads): Always send the restart signal to any
877 thread that has just been attached.
878 (thread_db_check_child_state): Make two calls to waitpid (one with
879 WCLONE, one without) instead of alternating every other time.
880 Add debug_signal to the list of events to ignore.
881 (thread_db_attach): Add "__pthread_threads_debug" to list of symbols.
883 2001-04-20 Michael Snyder <msnyder@redhat.com>
885 * thread-db.c (thread_db_check_child_state): Add SIGCHLD to the
886 list of signals to ignore. When a thread exits, make sure that
887 the other threads get restarted.
889 2001-04-19 Michael Snyder <msnyder@redhat.com>
891 * thread-db.c (wait_all_threads): Save exit and term events.
892 Save SIGINT like any other signal event.
893 (send_pending_signals): Don't send SIGINT.
894 (select_pending_event): Give preference to SIGINT.
895 (thread_db_check_child_state): Move special handling of
896 cancel and restart signals to after the stop_all_threads
897 and wait_all_threads calls, so we can catch these signals
898 even if they aren't the first signal we get notification of.
900 2001-04-19 Michael Snyder <msnyder@redhat.com>
902 Major change to select an event so as to avoid starvation.
903 * thread-db.c (select_pending_event): New function. Choose an
904 event from the list of pending events, and make its thread the
906 (stop_all_threads): Don't mark the event thread. That will now
907 be done by select_pending_event.
908 (struct signal_list): Rename to event_list. Save the thread and
909 the entire wait status, so that all events (not just signals)
911 (add_pending_signal): Rename to add_pending_event.
912 (send_pending_signals): Ignore non-signal events.
913 Ignore the selected event (which will be returned to the debugger).
914 Push back breakpoint events (moved here from wait_all_threads).
915 (wait_all_threads): Remove special handling for SIGTRAP (moved
916 into send_pending_signals). Call select_pending_event.
917 (thread_db_check_child_status): Add initial event to event list.
919 2001-04-16 Michael Snyder <msnyder@redhat.com>
920 * thread-db.c (thread_db_continue_thread): Handle the signal param.
921 (thread_db_singlestep_thread): Ditto.
922 (thread_db_check_child_state): Handle exit and termination separately.
924 2001-04-13 Michael Snyder <msnyder@redhat.com>
926 * thread-db.c (find_new_threads_callback): Account for dead threads.
927 (update_thread_list): Keep zombie threads in thread list, but
928 delete them if they've been joined or detached.
929 (stop_all_threads): Don't stop dead threads.
930 (continue_all_threads): Don't continue if not waited.
931 (thread_db_check_child_state): Move handling of terminate and
932 exit earlier. Handle termination or exit of children specially.
933 (thread_db_get_thread_reg): Test for defunct threads.
934 (thread_db_set_thread_reg): Ditto.
935 * ptrace-target.c (ptrace_xfer_mem): Don't be noisy about ptrace
936 errors caused by illegal memory accesses.
938 2001-04-12 Andrew Cagney <ac131313@redhat.com>
940 * server.c: Include "gdbloop.h". Replace gdbsocket_poll with
942 * ptrace-target.c, linux-target.c, solaris-target.c:
943 * dummy-target.c: Update comments.
945 2001-04-11 Michael Snyder <msnyder@redhat.com>
947 * thread-db.c (struct gdbserv_thread): Add new flag 'stepping'.
948 (stop_all_threads): Add parameter 'process'.
949 Set the process->event_thread here, instead of in check_child_state.
950 (wait_all_threads): Accept process as a parameter instead of eventpid.
951 Handle SIGTRAP differently if the thread was singlestepping.
952 (thread_db_singlestep_program): Clear flags for event thread.
953 (thread_db_singlestep_thread): Ditto.
954 (thread_db_continue_program): Ditto.
955 (thread_db_continue_thread): Ditto.
956 (thread_db_check_child_state): Cancel the stepping flag.
957 Don't set the event thread, this is now done in stop_all_threads.
958 * linux-target.c (debug_get_reg, debug_get_pc): New functions.
959 Purely for debugging output. Architecture dependent.
961 2001-04-09 Michael Snyder <msnyder@redhat.com>
963 * thread_db.c (thread_db_continue_thread): Continue the actual
964 thread given, not necessarily the event thread.
965 (thread_db_singlestep_thread): Step the actual thread given,
966 not necessarily the event thread.
968 2001-04-09 Michael Snyder <msnyder@redhat.com>
970 * thread-db.c (stop_all_threads): Do not send SIGSTOP to a thread
971 if it has already been sigstopped.
972 (thread_db_continue_thread): New function. Continue a single thread.
973 (thread_db_singlestep_thread): New function. Step a single thread.
974 (thread_db_attach): Set up continue_thread, singlestep_thread methods.
976 2001-04-09 Michael Snyder <msnyder@redhat.com>
978 * linux-target.c (PC_REGNUM): New enum, define.
979 (decr_pc_after_break): New function. Architecture dependent.
980 This version will probably serve for all targets for which
981 DECR_PC_AFTER_BREAK is one. Those for which it is zero will
982 want to define a no-op version of this function.
983 * thread-db.c (first_thread_in_list): New function.
984 (update_thread_list, stop_all_threads, wait_all_threads,
985 continue_all_threads): Use first_thread_in_list in for loops.
986 (wait_all_threads): Handle SIGINT and SIGTRAP specially.
987 Throw away SIGINT for all threads but the event thread.
988 For SIGTRAP in other than the event thread, call decr_pc_after_break
989 (giving the thread a chance to hit the trap again later).
990 (thread_db_continue_program, thread_db_singlestep_program):
991 Continue the event thread before all the others.
993 2001-04-05 Michael Snyder <msnyder@redhat.com>
995 * thread-db.c (add_pending_signal, send_pending_signals):
996 New functions. Allow wait_all_threads to collect any signals
997 other than SIGSTOP from the threads and defer them.
998 (wait_all_threads): Loop on each thread and call waitpid until
999 we get SIGSTOP. Any other signals are pended by throwing them
1000 into a list, and then sending them back to the threads using kill.
1001 (thread_db_get_thread_reg): Remove temporary hack for libthread_db
1002 bug. (thread_db_set_thread_reg): Ditto.
1004 2001-04-04 Michael Snyder <msnyder@redhat.com>
1006 * server.h (struct child_process): Add a 'running' flag.
1007 * thread_db.c (continue_all_threads): Take gdbserv as argument.
1008 Use it to find the current thread, and don't continue that one
1009 (leave it up to the parent method to continue the event thread.)
1010 (thread_db_continue_program): Child is running -- set a flag.
1011 (thread_db_singlestep_program): Ditto.
1012 (thread_db_check_child_state): Return immediately unles the child
1013 is running. Because this is a polling routine, we don't want to
1014 return any new events unles the child is officially running.
1015 Call waitpid with -1 instead of the process->pid, so that we
1016 can get events from the threads. Alternately use __WCLONE.
1017 (thread_db_get_thread_reg): If thread is not specified, use
1018 the event thread (if possible). Temporarily hack around a
1019 bug in the thread_db library.
1020 (thread_db_set_thread_reg): Ditto.
1022 2001-04-04 Michael Snyder <msnyder@redhat.com>
1024 * thread-db.c (continue_all_threads): Zero the attached, stopped,
1025 and waited flags only if thread is successfully continued.
1026 * linux-target.c: Fix broken endif directive.
1027 * configure.in: Test for sys/procfs.h.
1028 * config.in: Define HAVE_SYS_PROCFS_H.
1029 * configure: Regenerate.
1030 * thread-db.c (thread_list_lookup_by_pid): New function.
1031 (thread_db_check_child_state): Cache the event thread.
1032 (thread_db_fromtarget_thread_break): New function. Call
1033 gdbserv_fromtarget_thread_break with the event thread.
1034 (thread_db_attach): Take over the fromtarget_break vector.
1035 * server.h (struct child_process): Add event_thread field.
1037 2001-04-02 Michael Snyder <msnyder@redhat.com>
1039 * thread-db.c: include errno.h for error reporting.
1040 (struct gdbserv_thread): Add flag 'waited'.
1041 (thread_db_type_str): New function for thread_extra_info.
1042 (find_new_threads_callback): Use errno for error reporting.
1043 (thread_db_thread_info): New function, for thread_extra_info.
1044 (wait_all_threads): New function. Call waitpid on all threads
1045 that have been attached or sigstopped. Incomplete -- needs to
1046 push back any signals other than SIGSTOP.
1047 (continue_all_threads): Send PTRACE_CONT only to threads that
1048 have been attached or sigstopped.
1049 (check_child_state): Call wait_all_threads.
1050 (thread_db_attach): Activate thread_info vector.
1052 2001-03-30 Michael Snyder <msnyder@redhat.com>
1054 * linux-target.c (linux_read_reg, linux_write_reg): New functions.
1055 Abstract out the code to actually read a register value, so that
1056 it can be shared by several methods.
1057 (get_gregset): Use sizeof (GREGSET_T).
1058 (generic_linux_gg_reg_nr): New function. Support new reg methods.
1059 (generic_linux_next_gg_reg): Ditto.
1060 (generic_linux_sizeof_reg): Ditto.
1061 (generic_linux_reg_format): Ditto.
1062 (generic_linux_get_reg): New function. Newer register method,
1063 non-thread-aware version.
1064 (linux_attach): Use new register method in target vector.
1065 * thread-db.c: Remove some developmental ifdef code.
1066 (thread_db_get_thread_reg): Fall back on parentvec.get_reg
1067 if no thread or no thread_agent available.
1068 (thread_db_attach): Replace get_reg vector with get_thread_reg.
1070 * ptrace-target.c (ptrace_write_user): For X86 target, skip
1071 write-protected location in user/context address space.
1072 * linux-target.c (linux_process_get_reg): Use linux_read_reg.
1073 (linux_process_set_reg): Use linux_write_reg.
1074 (put_gregset): New function. Write child's gregset.
1075 (generic_linux_get_reg): Use SIZEOF_MAPPEDREG.
1076 (generic_linux_set_reg): New function. Newer register method.
1077 (linux_attach): Add set_reg to target vector, not process_set_reg.
1078 * thread-db.c (ps_lsetregs): Implement by calling put_gregset.
1079 (thread_db_set_thread_reg): New function. Implement set_thread_reg.
1080 (thread_db_attach): Add set_thread_reg to target vector.
1082 2001-03-29 Michael Snyder <msnyder@redhat.com>
1084 * ptrace-target.c (ptrace_read_user, ptrace_write_user):
1085 Accept an explicit pid instead of a struct gdbserv.
1086 * linux-target.c: Include gdb_proc_service.h for gregset_t
1087 (FIXME: better place to get it from?)
1088 (linux_register_offset): Return signed long to facilitate
1089 test for -1 error return value.
1090 (ppc_linux_xfer_reg, linux_process_get_reg, linux_process_set_reg):
1091 Calls to ptrace_read_user and ptrace_write_user now need a pid
1092 argument instead of a struct gdbserv.
1093 (reg_from_gregset): New function.
1094 (reg_to_gregset): New function.
1095 (get_gregset): New function. Read child's gregset.
1096 * thread-db.c (ps_lgetregs): Implement by calling get_gregset.
1097 (thread_db_dlopen, thread_db_open, thread_db_attach): Change
1098 sense of return: -1 now means failure, 0 means success.
1099 (thread_db_get_thread_reg): Call reg_from_gregset.
1101 2001-03-29 Michael Snyder <msnyder@redhat.com>
1103 * thread-db.c: Include signal.h, sys/ptrace.h (FIXME ptrace).
1104 (struct symbol_cache): Make value (address) unsigned.
1105 (add_symbol_to_list, lookup_cached_symbol): Ditto.
1106 (struct gdbserv_thread): Add attached, stopped flags to thread.
1107 (add_thread_to_list): Return pointer to new thread in list.
1108 (delete_thread_from_list): New function.
1109 (ps_pglobal_lookup, ps_pdread, ps_pdwrite, ps_ptread, ps_ptwrite):
1110 Muffle debugging output.
1111 (find_new_threads_callback): Muffle debugging output.
1112 Add thread to list only if it isn't already there.
1113 Use ptrace to attach to new threads. (FIXME explicit ptrace).
1114 (update_thread_list): New function. Only place where td_ta_thr_iter
1115 is called. Builds up the thread list, prunes it of any dead threads.
1116 (thread_db_thread_next): Call update_thread_list.
1117 (get_thread_signals): Read the values of the cancel and restart
1118 signals from the target using hardcoded symbol names.
1119 (stop_all_threads): New function. First cut. Deliver SIGSTOP
1120 to all threads except the event thread and any new threads that
1121 have just been attached.
1122 (continue_all_threads): New function. First cut. Deliver
1123 PTRACE_CONT to all threads except the main thread. Needs work.
1124 (thread_db_continue_program): New function.
1125 (thread_db_singlestep_program): New function.
1126 (thread_db_get_thread_reg): New function, incomplete.
1127 (thread_db_attach): Take over continue_program, singlestep_program.
1128 Muffle some debugging output.
1130 2001-03-26 Michael Snyder <msnyder@redhat.com>
1132 * thread-db.c: New file. Linux thread debugging layer.
1133 * linux-target.c (linux_attach): Call thread_db_attach.
1134 * ptrace-target.c: Export ptrace_handle_waitstatus for
1135 thread-db.c (FIXME).
1136 * configure.in: Add thread-db.c to linux target modules.
1137 (GREGSET_T, FPREGSET_T, HAVE_LWPID_T, HAVE_PSADDR_T,
1138 HAVE_PRGREGSET_T, HAVE_PRFPREGSET_T, LINUX_TARGET): Define.
1139 * config.in (GREGSET_T, FPREGSET_T, HAVE_LWPID_T,
1140 HAVE_PSADDR_T, HAVE_PRGREGSET_T, HAVE_PRFPREGSET_T, LINUX_TARGET):
1142 * configure: Regenerate.
1143 * Makefile.am (INCLUDES): Add $(srcdir)/../../include
1144 (devo/include), so that header files can be shared with gdb.
1145 (server_LDFLAGS): Add -ldl -rdynamic (FIXME configure).
1146 * Makefile.in: Regenerate.
1148 2001-03-22 Andrew Cagney <ac131313@redhat.com>
1150 * server.c (main): Pass gdbserver.attach and process to
1151 gdbserver_startup instead of gdbserver_poll.
1153 2001-03-16 Michael Snyder <msnyder@redhat.com>
1155 * linux-target.c (linux_detach): Pass new parameter to ptrace_detach.
1156 Fix file header comment typo. Update copyright.
1158 2001-03-16 Elena Zannoni <ezannoni@cygnus.com>
1160 * dummy-target.c (dummy_detach): Add new parameter.
1161 * linux-target.c (linux_detach): Ditto.
1162 * ptrace-target.c (ptrace_detach): Ditto.
1163 * solaris-target.c (solaris_detach): Ditto.
1165 2001-03-14 Andrew Cagney <ac131313@redhat.com>
1167 * ChangeLog: Move to here from ../native.
1168 * Makefile.am: Ditto.
1169 * aclocal.m4: Ditto.
1170 * configure.in: Ditto.
1171 * dummy-target.c: Ditto.
1172 * linux-target.c: Ditto.
1173 * ptrace-target.c: Ditto.
1174 * ptrace-target.h: Ditto.
1177 * solaris-target.c: Ditto.
1178 * Makefile.in: Regenerate.
1182 2001-03-14 Andrew Cagney <ac131313@redhat.com>
1184 * Makefile.am (INCLUDES): Update. Headers moved to ../include.
1185 * Makefile.in: Regenerate.
1187 2000-11-27 Michael Snyder <msnyder@happy.cygnus.com>
1189 * ptrace-target.c (ptrace_xfer_mem): Return -1 on error.
1191 2000-11-21 Michael Snyder <msnyder@cleaver.cygnus.com>
1193 * ptrace-target.c (noop_flush_i_cache): Comment out superfluous
1195 * linux-target.c (linux_process_get_reg): Return value of
1196 linux_register_offset is unsigned (can't be less than zero).
1197 (linux_process_rcmd): Just use '1' and '0' to control debug output.
1199 2000-11-06 Michael Snyder <msnyder@cleaver.cygnus.com>
1201 * dummy-target.c (dummy_attach): Fix order of memset args.
1202 * linux-target.c (linux_attach): Ditto.
1203 * ptrace-target.c (ptrace_attach): Ditto.
1204 * solaris-target.c (solaris_attach): Ditto.
1206 2000-10-19 Belinda Brazelle <brazelle@redhat.com>
1208 * linux-target.c: Add support for Arm processor.
1210 2000-10-12 Michael Snyder <msnyder@cleaver.cygnus.com>
1212 * ptrace-target.c (ptrace_handle_waitstatus): Save exitstatus
1213 in process->stop_signal.
1215 2000-09-14 Michael Snyder <msnyder@michael.wirespeed.com>
1217 * linux-target.c: Define regmap etc. for SH target.
1218 * configure.in: Add defines for SH target.
1219 * configure: Rebuild.
1221 2000-09-13 Michael Snyder <msnyder@michael.wirespeed.com>
1223 * server.h (fromtarget_terminate): New field. Also fix up
1224 some overlooked function prototypes in the existing fields.
1225 (struct client_process): Rename to struct child_process.
1226 * linux-target.c (linux_fromtarget_terminate): New function.
1227 Called from main when child terminates abnormally.
1228 (linux_process_rcmd): New function. Catches "qRcmd" requests,
1229 which are currently used just to turn on debug output.
1230 * ptrace-target.c (ptrace_handle_waitstatus): Set stop_signal
1231 for the WIFSTOPPED case. (ptrace_process_signal): Return zero
1232 instead of the signal number, to let libremote know that we have
1233 handled the signal. (ptrace_xfer_memory): Fix off-by-one error.
1234 * solaris-target.c (solaris_fromtarget_terminate): New function.
1235 * server.c (main): Call fromtarget_terminate for the 'T' case.
1236 Do not request a one-second delay from gdbsocket_poll.
1238 2000-09-08 Michael Snyder <msnyder@cleaver.cygnus.com>
1240 * solaris-target.c: New file. Just a prototype, doesn't actually
1241 work. Used to confirm configurability to multiple targets.
1242 * dummy-target.c: New file. Dummy back-end for implementing new
1243 targets such as solaris-target.c (above), before actually having
1244 a working back-end. The dummy target works just like the sample
1245 target in the samples directory.
1246 * configure.in: Add AC_SUBST(TARGET_MODULES) to add the
1247 appropriate target modules to the Makefile. Add solaris target.
1248 * configure: Regenerate.
1249 * Makefile.am: Move *-target.c into EXTRA_server_SOURCES.
1250 Add TARGET_MODULES to server_LDADD. Define server_DEPENDENCIES.
1251 * Makefile.in: Regenerate.
1252 * ptrace-target.h: New file. Defines needed only by ptrace.
1253 * server.h: Remove ptrace-specific defines to ptrace-target.h.
1254 (struct server_vector): New, for target entry points.
1255 (struct nativeserver): Rename to struct client_process.
1256 * server.c: Use client_process for entry points, and server_vector.
1257 * linux-target.c: Include ptrace-target.h.
1258 (ppc_linux_get_reg): Rename to ppc_linux_process_get_reg.
1259 (ppc_linux_set_reg): Rename to ppc_linux_process_set_reg.
1260 (ppc_linux_get_regs): Rename to ppc_linux_process_get_regs.
1261 (ppc_linux_set_regs): Rename to ppc_linux_process_set_regs.
1262 (linux_get_reg): Rename to linux_process_get_reg.
1263 (linux_set_reg): Rename to linux_process_set_reg.
1264 (linux_get_regs): Rename to linux_process_get_regs.
1265 (linux_set_regs): Rename to linux_process_set_regs.
1266 (gdbserver_check_child_state): Rename to linux_check_child_state.
1267 (gdbserver_fromtarget_break): Rename to linux_fromtarget_break.
1268 (gdbserver_fromtarget_exit): Rename to linux_fromtarget_exit.
1269 (struct server_vector gdbserver): New, defines entry points.
1270 * ptrace-target.c: Include ptrace-target.h.
1271 * aclocal.m4: New file.
1273 2000-09-08 Michael Snyder <msnyder@cleaver.cygnus.com>
1275 * linux-target.c (linux_get_reg, linux_set_reg): Remove direct
1276 calls to ptrace; instead use service call into ptrace-target.c.
1277 (linux_get_regs, linux_set_regs): Remove ifdef PPC; instead use
1278 an ifdef in linux_attach to set up the target vector pointers.
1279 (linux_attach): If PPC_LINUX_TARGET, use PPC versions of register
1280 functions instead of generic ones. Define process_set_reg, so
1281 that the "P" command is now handled.
1283 2000-09-07 Michael Snyder <msnyder@cleaver.cygnus.com>
1285 * ptrace-target.c (ptrace_read_user, ptrace_write_user): New
1286 functions. Exported so that linux-target does not have to
1287 call ptrace directly. (ptrace_get_gregs, ptrace_set_gregs,
1288 ptrace_get_fpregs, ptrace_set_fpregs): New functions.
1289 Exported for use by targets that use these methods.
1290 (ptrace_xfer_mem): Use ptrace_arg3_type instead of long.
1291 Add address to error messages.
1292 * linux-target.c: Start using config macros, port to alpha and ppc.
1293 (ppc_linux_xfer_reg, ppc_linux_getset_reg, ppc_linux_get_reg,
1294 ppc_linux_set_reg, ppc_linux_get_regs, ppc_linux_set_regs):
1295 New functions. Explicit knowledge of ppc linux register layout.
1296 (linux_get_reg): Catch undefined regmap offsets.
1297 (linux_set_reg): Ditto.
1298 (linux_get_regs): Conditionally call ppc_linux_get_regs.
1299 (linux_set_regs): Ditto.
1300 * configure.in: Add PPC target, and export target defines.
1301 * configure: Regenerate.
1302 * config.in: Add new target defines.
1304 2000-09-06 Michael Snyder <msnyder@cleaver.cygnus.com>
1306 * Makefile.am: Define CC and CFLAGS.
1307 * Makefile.in: Regenerate.
1308 * configure.in: New file. Detect all manner of things.
1309 * config.in: New file. Input file for config.h.
1310 * configure: Generate.
1311 * ptrace-target.c (ptrace_xfer_type): Move def'n into server.h.
1312 (PTRACE_XFER_SIZE): Ditto.
1313 * linux-target.c (ptrace_xfer_type): Move def'n into server.h.
1314 (ptrace_arg3_type): Ditto.
1315 * server.h: Use config macros to determine definitions of
1316 ptrace_xfer_type, ptrace_arg1_type, ptrace_arg2_type,
1317 ptrace_arg3_type, ptrace_arg4_type.
1319 2000-09-05 Michael Snyder <msnyder@cleaver.cygnus.com>
1321 * server.c (main): Detect exit status, and call fromtarget_exit
1322 instead of fromtarget_break.
1323 * linux-target.c (gdbserver_fromtarget_exit): New function.
1324 * ptrace-target.c (ptrace_kill_program, ptrace_sigkill_program):
1325 New functions. Send signals to the child.
1326 (ptrace_exit_program): New function.
1328 2000-09-05 Michael Snyder <msnyder@cleaver.cygnus.com>
1330 * linux-target.c (linux_attach): Activate process_signal vector.
1331 (gdbserver_check_child_state): Send real received signal, instead
1333 * ptrace-target.c (ptrace_break_program): New function. Implement
1334 control-c interrupt from host.
1335 (ptrace_process_signal): Implement continuation signal.
1336 (ptrace_singlestep_program): Ditto.
1337 (ptrace_continue_program): Ditto.
1338 (ptrace_get_trap_number): New function. Return signal to libremote.
1339 (ptrace_compute_signal): Ditto.
1340 (ptrace_attach): Activate break_program, process_signal, compute_signal
1341 and get_trap_number vectors.
1342 server.h (struct nativeserver): add signal_to_send field.
1343 Rename stop_sig to stop_signal.
1345 2000-09-05 Michael Snyder <msnyder@cleaver.cygnus.com>
1347 * ptrace-target.c (ptrace_singlestep_program): Make ptrace args long.
1348 FIXME: needs to be configurable.
1349 * linux-target.c (linux_get_reg, linux_set_reg): Make regaddr and
1350 regval configurable types. FIXME needs real configury.
1352 2000-09-01 Michael Snyder <msnyder@cleaver.cygnus.com>
1353 New directory "native" for native gdbserver in libremote.
1354 * server.c: New file. Entry point and main event loop.
1355 * server.h: New file. Shared declarations.
1356 * linux-target.c: New file. Linux version of libremote native stub.
1357 * ptrace-target.c: New file. Ptrace operations for libremote stub.
1358 * Makefile.am: New file. Automake source.
1359 * Makefile.in: New file. Automake-generated makefile source.
1360 Note: this work is incomplete and only partially working.
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