1 2002-12-18 Kevin Buettner <kevinb@redhat.com>
3 * ptrace-target.h, ptrace-target.c (ptrace_write_user)
4 (ptrace_read_user): Add struct gdbserv argument.
5 * linux-target.c: Fix all callers.
6 * ptrace-target.c (ptrace_write_user, ptrace_read_user): Add
8 (ptrace_xfer_mem): Fix debugging printf()s so that they'll print
9 useful results when sizeof (long long) is the same as
10 sizeof (ptrace_xfer_type).
11 (ptrace_xfer_mem): Decode address using gdbserv_host_bytes_from_reg()
12 instead of gdbserv_reg_to_ulong().
14 2002-12-02 Kevin Buettner <kevinb@redhat.com>
16 * linux-target.c (linux_get_reg, linux_set_reg, reg_from_regset)
17 (reg_to_regset, get_regset, put_regset reg_from_gregset)
18 (reg_to_gregset, reg_from_fpregset, reg_to_fpregset)
19 (reg_from_xregset, reg_to_xregset): Adjust all calls to
20 gdbserv_host_bytes_to_reg() and gdbserv_host_bytes_from_reg()
21 to account for change in interface. Remove code which is
22 no longer needed due to improvements in the aforementioned
24 (sign_extend): New constant.
25 (FPR_BASE, PC, CAUSE, BADVADDR, MMHI, MMLO, FPC_CSR, FPC_EIR):
26 Make sure these are defined.
28 (reginfo) [MIPS_LINUX_TARGET]: Use PROTO_SIZE to initialize
29 table with size (width) of registers to use when communicating
31 (NUM_REGS, PC_REGNUM, reginfo) [MIPS64_LINUX_TARGET]: Define.
33 2002-11-19 Michael Snyder <msnyder@redhat.com>
35 * ptrace-target.c: Fix typo in copyright.
37 2002-08-23 Kevin Buettner <kevinb@redhat.com>
39 * linux-target.c (linux_get_reg, linux_set_reg): Print an
40 error message for out of bound registers.
42 2002-08-23 Kevin Buettner <kevinb@redhat.com>
44 * linux-target.c (NUM_REGS) [X86_LINUX_TARGET]: Bump to 42.
45 (getregs_setregs_reginfo) [X86_LINUX_TARGET]: Add entry for
46 register ``orig_eax''.
47 (linux_get_reg, linux_set_reg): Make sure ``regno'' value is valid.
48 (linux_detach, linux_attach, decr_pc_after_break): Call fprintf()
50 (linux_detach, linux_attach): Don't always print informational
52 * ptrace-target.c (handle_waitstatus, ptrace_detach, ptrace_attach):
53 Don't always print informational messages. Use fprintf() instead
55 (noop_get_trap_number, noop_compute_signal, noop_exit_program)
56 (noop_signlestep_program, noop_break_program): Delete.
57 (ptrace_flush_i_cache): Renamed from noop_flush_i_cache. Update
58 reference in ptrace_attach().
59 (continue_lwp, singlestep_lwp, attach_lwp, stop_lwp, ps_pstop)
60 (ps_continue, ps_lstop): Use fprintf() instead of printf().
61 * server.c (errno.h): Include.
62 (usage): New function.
63 (main): Add option processing code.
64 * server.h (struct child_process): Add new field,
65 ``debug_informational''.
66 * thread-db.c (ps_plog, select_pending_event, send_pending_signals)
67 (wait_all_threads, thread_db_check_child_state): Use fprintf()
69 (thread_db_detach): Conditionally print informational messages.
70 Use fprintf() instead of printf().
72 2002-08-21 Kevin Buettner <kevinb@redhat.com>
74 * Makefile.am, configure.in, dummy-target.c, linux-target.c,
75 ptrace-target.c, ptrace-target.h, server.h, solaris-target.c,
76 thread-db.c: Change ``libremote'' references into ``RDA''
78 * Makefile.in, configure: Regenerate.
80 2002-08-15 Kevin Buettner <kevinb@redhat.com>
82 * dummy-target.c, gdb_proc_service.h, gdbserv-thread-db.h,
83 linux-target.c, no-threads.c, ptrace-target.c,
84 ptrace-target.h, server.c, server.h, solaris-target.c,
85 thread-db.c: Update copyright notices.
87 2002-05-16 Kevin Buettner <kevinb@redhat.com>
89 * config.in (GREGSET_T): Renamed from GDB_GREGSET_T.
90 (FPREGSET_T): Renamed from GDB_FPREGSET_T.
91 * configure.in: Likewise.
92 * gdbserv-thread-db.h: Likewise.
93 * linux-target.c: Likewise.
94 * thread-db.c: Likewise.
95 * gdb_proc_service.h: Remove everything that's not absolutely
98 2002-02-01 Kevin Buettner <kevinb@redhat.com>
100 * configure.in (arm32): Change to ``yes''.
101 * configure: Regenerate.
103 2002-01-30 Kevin Buettner <kevinb@redhat.com>
105 * linux-target.c (linux_get_reg) [GETREGS_SETREGS_REGINFO]: Add
107 (linux_set_reg) [GETREGS_SETREGS_REGINFO]: Likewise.
109 2002-01-28 Kevin Buettner <kevinb@redhat.com>
111 * linux-target.c (write_reg_bytes): Print return status in
112 ptrace failure message.
113 * ptrace-target.c (ptrace_write_user): Enable existing
114 Linux/MIPS related kernel bug workaround when MIPS_LINUX_TARGET
115 is defined (which is in addition to _MIPSEL).
117 2002-01-28 Kevin Buettner <kevinb@redhat.com>
119 * thread-db.c (struct regset_cache): New struct declaration.
120 (thread_db_map_id2thr_cache_valid, fpregset_cache, gregset_cache):
122 (thread_db_map_id2thr, thread_db_invalidate_map_id2thr_cache)
123 (initialize_regset_cache, initialize_regset_caches)
124 (thread_db_flush_regset_cache, thread_db_flush_regset_caches)
125 (thread_db_get_regset, thread_db_set_regset)
126 (thread_db_invalidate_regset_cache, thread_db_invalidate_regset_caches)
127 (thread_db_invalidate_caches, thread_db_getfpregs)
128 (thread_db_set_fpregs, thread_db_getgregs, thread_db_setgregs)
129 (td_thr_getfpregs_wrapper, td_thr_getgregs_wrapper)
130 (td_thr_setfpregs_wrapper, td_thr_setgregs_wrapper):
132 (update_thread_list, thread_db_get_thread_reg)
133 (thread_db_set_thread_reg): Call thread_db_map_id2thr() instead of
134 td_ta_map_id2thr_p().
135 (thread_db_get_thread_reg): Call thread_db_getfpregs() instead
136 of td_thr_getfpregs_p(). Call thread_db_getgregs() instead of
138 (thread_db_set_thread_reg): Likewise. Also, call
139 thread_db_setfpregs() instead of td_thr_setfpregs_p() and
140 call thread_db_setgregs() instead of td_thr_setgregs_p().
141 (continue_thread, thread_db_continue_program)
142 (thread_db_singlestep_program, thread_db_continue_thread)
143 (singlestep_thread): Call thread_db_flush_regset_caches() at
144 beginning of function and thread_db_invalidate_caches() at
146 (thread_db_attach): Initialize regset caches.
148 2002-01-15 Kevin Buettner <kevinb@redhat.com>
150 * config.in (Generated automatically comment): Revise to note
151 that this file was generated automatically at one time, but is
153 (LINUX_TARGET, SOLARIS_TARGET): Fix comments.
154 (MIPS_LINUX_TARGET): Add.
155 * configure.in (i?86*linux*, powerpc*linux*, arm*linux*, mips*linux*):
156 Eliminate unnecessary duplication.
157 (mips*linux*): Target is MIPS_LINUX_TARGET, not SH_LINUX_TARGET.
158 * gdbserv-thread-db.h (is_gp_reg): New function.
159 (is_fp_reg, is_extended_reg): Revise comments.
160 * linux-target.c (enum regset): Add new constant NOREGS.
161 (is_gp_reg): New function.
162 (PEEKUSER_POKEUSER_REGINFO) [MIPS_LINUX_TARGET]: Define.
163 (SIZEOF_REGMAP, SIZEOF_MAPPEDREG) [MIPS_LINUX_TARGET]: Delete.
164 (NUM_REGS) [MIPS_LINUX_TARGET]: Change from 38 to 70 to account
165 for addition of floating point support.
166 (regmap) [MIPS_LINUX_TARGET]: Delete this array.
167 (is_fp_reg, is_extended_reg) [MIPS_LINUX_TARGET]: Delete.
168 (reginfo) [MIPS_LINUX_TARGET]: Define.
169 (DEBUG): Delete this macro definition.
170 (disp_gdb_mesg, ptrace_get_mem, ptrace_set_mem): Delete function
172 (linux_get_reg, linux_set_reg) [PEEKUSER_POKEUSER_REGINFO]: Add
174 (put_regset) [PEEKUSER_POKEUSER_REGINFO]: Add missing return
176 (mips_get_reg): Use read_reg_bytes() to fetch the register.
177 (mips_singlestep_program): Eliminate unused variables ``u_regs_base'',
178 ``temp_reg''. Fix fprintf related format warning.
179 * ptrace-target.h (ptrace_check_child_state): Declare.
180 * thread-db.c (thread_db_get_thread_reg, thread_db_set_thread_reg):
181 Handle case of target not supporting one or more registers.
183 2001-10-15 Kevin Buettner <kevinb@redhat.com>
185 * gdbserv-thread-db.h (is_extended_reg, reg_to_xregset)
186 (reg_from_xregset): New functions.
187 (debug_get_pc, decr_pc_after_break): Add declaration.
188 * linux-target.c (sys/procfs.h): Include.
189 (MAX_REG_SIZE): New anonymous enum constant.
190 (enum regset): New enum.
191 (getregs_setregs_reginfo, peekuser_pokeuser_reginfo): New structs.
192 (offsetof, fieldsize): New macros.
193 (ARM_LINUX_TARGET, X86_LINUX_TARGET, PPC_LINUX_TARGET): Deleted
194 old data structures defining register maps for these registers.
195 Replaced with new tables using either getregs_setregs_reginfo
196 or peekuser_pokeuser_reginfo structs. Other architectures
197 remain the same, though reoranized somewhat.
198 (linux_next_gg_reg, linux_gg_reg_nr): Revise comments. Use
199 NUM_REGS instead of NUM_G_PACKET_REGS.
200 (get_xregsetsize): New function.
201 (linux_reg_format, linux_sizeof_reg, is_fp_reg, is_extended_reg)
202 [PEEKUSER_POKEUSER_REGINFO, GETREGS_SETREGS_REGINFO]: New functions.
203 (read_reg_bytes, write_reg_bytes, debug_get_reg, debug_get_pc)
204 (linux_get_reg, linux_set_reg, reg_from_regset, reg_to_regset)
205 (reg_from_gregset, reg_to_gregset, reg_from_fpregset, reg_to_fpregset)
206 (reg_from_xregset, reg_to_xregset, get_regset, put_regset, get_gregset)
207 (put_gregset, get_fpregset, put_fpregset, get_xregset, put_xregset)
208 [PEEKUSER_POKEUSER_REGINFO]: New functions.
209 (read_reg_as_ulong, write_reg_as_ulong, debug_get_reg, debug_get_pc)
210 (linux_get_reg, linux_set_reg, regs_from_gregset, regs_to_gregset)
211 (reg_from_fpregset, reg_to_fpregset, reg_from_xregset, reg_to_xregset)
212 (get_gregset, put_gregset, get_fpregset, put_fpregset, get_xregset)
213 (put_xregset) [GETREGS_SETREGS_REGINFO]: New functions.
214 (linux_process_get_regs, linux_process_get_reg, linux_process_set_reg)
215 (linux_process_set_regs, ppc_linux_process_set_reg)
216 (ppc_linux_process_get_reg, ppc_linux_process_set_regs)
217 (ppc_linux_process_get_regs): Deleted.
218 (linux_attach): Reorganize initializations.
219 (generic_linux_set_reg): Renamed to linux_set_reg.
220 (generic_linux_get_reg): Renamed to linux_get_reg.
221 (generic_linux_sizeof_reg): Renamed to linux_sizeof_reg.
222 (generic_linux_gg_reg_nr): Renamed to linux_gg_reg_nr.
223 (generic_linux_next_gg_reg): Renamed to linux_next_gg_reg.
224 (generic_linux_reg_format): Renamed to linux_reg_format.
225 (decr_pc_after_break): Consolidated versions of this function
226 down to two; one for x86 and one for everything else. Also,
227 add ``serv'' parameter and fix all callers.
228 (debug_get_pc, debug_get_reg): Now only three versions of
229 this function, one for PEEKUSER_POKEUSER_REGINFO code,
230 one for GETREGS_SETREGS_REGINFO code, and one for legacy
231 code. Also, debug_get_pc() now takes a ``serv'' parameter.
233 (ps_lgetregs): Use new get_gregset() interface.
234 (ps_lsetregs): Use new put_gregset() interface.
235 (ps_lgetfpregs, ps_lsetfpregs, ps_lgetxregsize, ps_lgetxregs)
236 (ps_lsetxregs): Implement.
237 * ptrace-target.c (ptrace_read_user, ptrace_write_user): Make
238 ``buff'' argument of type ``void *'' instead of ``char *''.
239 (ptrace_get_gregs): Add new parameter ``alt_pid''.
240 (ptrace_set_gregs): Likewise.
241 (ptrace_get_fpregs): Add new parameter alt_pid. Also fix call
242 to ptrace() so parameters are in correct order.
243 (ptrace_set_fpregs): Likewise.
244 (ptrace_get_fpxregs, ptrace_set_fpxregs): New functions.
245 * ptrace-target.h (ptrace_write_user, ptrace_read_user)
246 (ptrace_get_gregs, ptrace_set_gregs, ptrace_get_fpregs)
247 (ptrace_set_fpregs, ptrace_get_fpxregs, ptrace_set_fpxregs):
249 * thread-db.c (td_thr_getxregsize_p, td_thr_getxregs_p)
250 (td_thr_setxregs_p): New function pointers.
251 (thread_db_dlopen): Initialize new function pointers.
252 (send_pending_signals): Add ``process'' parameter so that
253 decr_pc_after_break() can get the ``serv'' argument. Fix all
255 (thread_db_get_thread_reg, thread_db_set_thread_reg): Add xregset
258 2001-10-14 Kevin Buettner <kevinb@redhat.com>
260 * ptrace-target.c (unistd.h): Include.
261 (close_open_files): New function.
262 (ptrace_create_child): In newly forked child process, call
263 close_open_files() before invoking execv().
265 2001-10-13 Kevin Buettner <kevinb@redhat.com>
267 * server.c (signal.h): Include.
268 (chld_handler): New function.
269 (main): Establish chld_handler as the SIGCHLD signal handler.
270 Also, wait 1 second instead of 0 seconds to avoid busy waiting.
272 2001-09-26 Louis Hamilton <hamilton@redhat.com>
274 * configure.in: Use thread-db.c for ARM.
275 * configure: Regenerated.
276 * linux-target.c (ARM_R11, ARM_R12): Added to regmap[].
277 (ARM_FP, ARM_CPSR): Revised mappings of these ARM registers.
278 (debug_get_reg, debug_get_pc, decr_pc_after_break) [ARM_LINUX_TARGET]:
281 2001-09-20 Kevin Buettner <kevinb@redhat.com>
283 * configure.in: Use thread-db.c for Linux/PPC too.
284 * configure: Regenerated.
285 * linux-target.c (linux_read_reg): Add forward declaration.
286 (debug_get_reg, debug_get_pc, decr_pc_after_break) [PPC_LINUX_TARGET]:
289 2001-09-20 Kevin Buettner <kevinb@redhat.com>
291 * linux-target.c (SIZEOF_MAPPEDREG) [PPC_LINUX_TARGET]: Add comment.
292 (PC_REGNUM) [PPC_LINUX_TARGET]: Remove FIXME comment.
293 (is_fp_reg) [PPC_LINUX_TARGET]: Revise upper bound on floating
294 point register numbers.
295 (ppc_linux_getset_reg): Rewritten to use regmap[] to fetch
296 ptrace() offsets. This'll handle the (previously unsupported)
297 floating point registers, cr, lr, ctr, and xer.
298 (ppc_linux_process_set_regs, ppc_linux_process_get_regs): Don't
299 hardcode loop upper bound.
300 (ppc_linux_process_get_regs): Revise declarator to match
301 process_get_regs member in struct gdbserv_target.
303 2001-09-18 Andrew Haley <aph@cambridge.redhat.com>
305 * server.c (main): Work around SIGCHLD problem.
307 2001-08-05 Michael Chastain <chastain@redhat.com>
309 * ptrace-target.c (ptrace_write_user): Ignore ESRCH on MIPS,
310 because mips linux kernel 2.4 has a bug where PTRACE_POKEUSER
311 returns -ESRCH even when it succeeds.
313 2001-08-03 Michael Keezer <mkeezer@redhat.com>
315 * configure.in: Add am33_2.0 & mn10300.
316 * config.in: Add AM33_LINUX_TARGET & AM33_2_0_LINUX_TARGET.
317 * linux-target.c: am33_2.0 & mn10300 support.
319 2001-07-23 David Howells <dhowells@redhat.com>
321 * ptrace-target.c: Added big-endian MIPS support.
322 * linux-target.c: ditto.
325 2001-06-25 Michael Snyder <msnyder@redhat.com>
327 * ptrace-target.c (ptrace_compute_signal): Implement conversion
328 from native signals to GDB's signal numbering.
329 (ptrace_process_signal): Implement conversion from GDB's signal
330 numbering to native signals.
331 (stop_lwp): Comment out debugging output of SIGSTOP signals.
332 * linix-target.c (linux_fromtarget_break): Call compute_signal.
333 (linux_fromtarget_terminate): Ditto.
334 * thread-db.c (thread_db_check_child_state): Don't do any conversion
335 when passing a signal directly back to the inferior; just copy from
336 stop_signal to signal_to_send.
337 (thread_db_fromtarget_thread_break): Convert signal from native
338 numbering to GDB's numbering.
340 2001-06-18 Michael Snyder <msnyder@redhat.com>
342 * linux-target.c (generic_linux_set_reg): Fix typo.
343 (decr_pc_after_break): Mute the debugging output.
345 2001-06-15 Michael Snyder <msnyder@redhat.com>
347 * thread_db.c: Disable noisy debugging output.
348 (select_pending_event): Add new selection criterion, giving
349 preference to a thread that is being single-stepped. This
350 avoids the problem of deciding whether to decrement the pc if
351 we don't know whether a SIGTRAP was caused by stepping or by
352 hitting a breakpoint.
354 2001-06-14 Michael Snyder <msnyder@redhat.com>
356 * thread-db.c (thread_db_set_gen, thread_db_get_gen): Rewrite
357 syntax for qSymbol messages.
358 * gdb_proc_service.h: New file.
359 * Makefile.am (INCLUDES): Remove $(srcdir)/../../include.
360 * Makefile.in: Regenerate.
362 2001-05-31 Michael Snyder <msnyder@redhat.com>
364 * thread-db.c (add_thread_to_list): Return explicit value!
366 2001-05-23 Jackie Smith Cashion <jsmith@redhat.com>
368 * linux-target.c: Change MIPS SIZEOF_MAPPEDREG from 1 to 4.
369 (linux_register_offset): For MIPS return regmap[regnum] instead of
370 SIZEOF_MAPPEDREG * regmap[regnum].
371 (mips_get_reg): Pass pid as argument to ptrace_read_user instead of
374 2001-05-22 Michael Snyder <msnyder@redhat.com>
376 * no-threads.c: New file.
377 * configure.in: Use thread-db.c only for specified architectures,
378 (including x86); otherwise default to using no-threads.c.
379 * configure: Regenerate.
381 2001-05-10 Martin M. Hunt <hunt@redhat.com>
383 * linux-target.c (is_fp_reg): New function for mips.
386 Merged changes from symbol branch with appropriate modifications.
388 Mon Mar 26 08:54:41 PST 2001 Brendan Conoboy <blc@redhat.com>
390 * configure.in: Added mipsvr4181el* target
391 * configure: regenerate
393 2001-01-26 Rudy Folden <rfolden@redhat.com>
395 * server.c: Changed name from gdbgeneral_xxx to gdbconnect_xx.
397 2001-01-24 Rudy Folden <rfolden@redhat.com>
399 * configure: Added mipsel* target.
400 * linux-target.c: Add support for MIPS processor, including single-
401 stepping which doesn't exist in mips ptrace.
402 * ptrace-target.c (ptrace_handle_waitstatus): Added single-stepping
403 instruction restore for mips.
404 (ptrace_attach): Added single stepping initialization code.
405 * server (main): Added generic interfaces, gdbgeneral_startup/shutdown
406 for serial or tcp/ip selection. Also added server_quit_p to X and W
407 for serial support (no socket shutdown).
408 * server.h (child_process): Added mips instruction save area for
411 2001-01-10 Rudy Folden <rfolden@redhat.com>
412 * ptrace-target.c (enum): Added U_REGS_OFFSET to processor
415 2001-04-26 Michael Snyder <msnyder@redhat.com>
417 * linux-target.c (is_fp_reg): New function.
418 (reg_from_fpregset, reg_to_fpregset): New functions.
419 Support for thread_db_get_thread_reg floating point regs.
420 * thread-db.c (thread_db_get_thread_reg, thread_db_set_thread_reg):
421 Infrastructure for support of floating point regs.
422 (Attach_thread): New function, abstracted from below.
423 (find_new_threads_callback): Call attach_thread.
424 (stop_thread): New function, abstracted from stop_all_threads.
425 (stop_all_threads): Call stop_thread.
426 (continue_thread): Test for lwp == 0 before calling continue_lwp.
427 * ptrace-target.c (stop_lwp): New function.
428 * gdbserv-thread-db.h (reg_to_regnum, reg_from_regnu): Declare.
430 2001-04-25 Michael Snyder <msnyder@redhat.com>
432 Move all ptrace references out of thread-db.c.
433 * gdbserv-thread-db.h: New file.
434 * thread-db.c (struct ps_prochandle): Move to gdbserv-thread-db.h.
435 (gdb_ps_prochandle_t): Ditto.
436 (gdb_ps_read_buf_t, gdb_ps_write_buf_t, gdb_ps_size_t): Ditto.
437 (ps_pstop, ps_pcontinue): Move to ptrace-target.c.
438 (ps_lstop, ps_lcontinue): Ditto.
439 (ps_pdread, ps_pdwrite, ps_ptread, ps_ptwrite): Ditto.
440 (ps_lgetxregsize): Move to linux-target.c.
441 (ps_lgetxregs, ps_lsetxregs, ps_getpid): Ditto.
442 (ps_lgetregs, ps_lsetregs, ps_lgetfpregs, ps_lsetfpregs): Ditto.
443 (find_new_threads_callback): Abstract attach bits into new function
444 attach_lwp, and move that to ptrace-target.c.
445 (wait_all_threads): Call continue_lwp instead of ptrace.
446 (continue_pid): Rename as continue_lwp, move into ptrace-target.c.
447 (singlestep_pid): Rename as continue_lwp, move into ptrace-target.c.
448 (struct symbol_cache): Change value to a paddr_t.
449 (add_symbol_to_list, lookup_cached_symbol): Ditto.
450 * linux-target.c (ps_lgetregs, ps_lsetregs, ps_lgetfpregs,
451 ps_lsetfpregs, ps_lgetxregsize, ps_lgetxregs, ps_lsetxregs,
452 ps_getpid): Moved to here from thread-db.c.
453 * ptrace-target.c (continue_lwp, singlestep_lwp, attach_lwp,
454 (ps_pstop, ps_pcontinue, ps_lstop, ps_lcontinue, ps_pdread,
455 ps_pdwrite, ps_ptread, ps_ptwrite): Moved here from thread-db.c.
456 (ptrace_handle_waitstatus): Renamed as handle_waitstatus.
457 (ps_lcontinue): Implement (untested).
458 * server.c (main): Check server_quit_p after calling gdbloop_poll.
461 2001-04-24 Michael Snyder <msnyder@redhat.com>
463 * thread-db.c (continue_pid, continue_thread): New functions.
464 (singlestep_pid, singlestep_thread): New functions.
465 (continue_all_threads): Use new function continue_thread.
466 (thread_db_continue_program): Ditto.
467 (thread_db_singlestep_program): Ditto.
468 (thread_db_continue_thread): Ditto.
469 (thread_db_singlestep_thread): Ditto.
471 * thread-db.c: Remove some debugging printfs.
472 Add activation and handling of the thread debug signal.
473 (get_thread_signals): Get the debug signal as well as the others.
474 Set target flag to activate the debug signal.
475 (set_target_int_by_name): New function.
476 (struct gdbserv_thread): Rename "sigstopped" flag to just "stopped".
477 (stop_all_threads): Mark the event thread "stopped".
478 (wait_all_threads): Mark the event thread "waited".
479 Don't stash the debug signal (throw it away).
480 (continue_all_threads): Always send the restart signal to any
481 thread that has just been attached.
482 (thread_db_check_child_state): Make two calls to waitpid (one with
483 WCLONE, one without) instead of alternating every other time.
484 Add debug_signal to the list of events to ignore.
485 (thread_db_attach): Add "__pthread_threads_debug" to list of symbols.
487 2001-04-20 Michael Snyder <msnyder@redhat.com>
489 * thread-db.c (thread_db_check_child_state): Add SIGCHLD to the
490 list of signals to ignore. When a thread exits, make sure that
491 the other threads get restarted.
493 2001-04-19 Michael Snyder <msnyder@redhat.com>
495 * thread-db.c (wait_all_threads): Save exit and term events.
496 Save SIGINT like any other signal event.
497 (send_pending_signals): Don't send SIGINT.
498 (select_pending_event): Give preference to SIGINT.
499 (thread_db_check_child_state): Move special handling of
500 cancel and restart signals to after the stop_all_threads
501 and wait_all_threads calls, so we can catch these signals
502 even if they aren't the first signal we get notification of.
504 2001-04-19 Michael Snyder <msnyder@redhat.com>
506 Major change to select an event so as to avoid starvation.
507 * thread-db.c (select_pending_event): New function. Choose an
508 event from the list of pending events, and make its thread the
510 (stop_all_threads): Don't mark the event thread. That will now
511 be done by select_pending_event.
512 (struct signal_list): Rename to event_list. Save the thread and
513 the entire wait status, so that all events (not just signals)
515 (add_pending_signal): Rename to add_pending_event.
516 (send_pending_signals): Ignore non-signal events.
517 Ignore the selected event (which will be returned to the debugger).
518 Push back breakpoint events (moved here from wait_all_threads).
519 (wait_all_threads): Remove special handling for SIGTRAP (moved
520 into send_pending_signals). Call select_pending_event.
521 (thread_db_check_child_status): Add initial event to event list.
523 2001-04-16 Michael Snyder <msnyder@redhat.com>
524 * thread-db.c (thread_db_continue_thread): Handle the signal param.
525 (thread_db_singlestep_thread): Ditto.
526 (thread_db_check_child_state): Handle exit and termination separately.
528 2001-04-13 Michael Snyder <msnyder@redhat.com>
530 * thread-db.c (find_new_threads_callback): Account for dead threads.
531 (update_thread_list): Keep zombie threads in thread list, but
532 delete them if they've been joined or detached.
533 (stop_all_threads): Don't stop dead threads.
534 (continue_all_threads): Don't continue if not waited.
535 (thread_db_check_child_state): Move handling of terminate and
536 exit earlier. Handle termination or exit of children specially.
537 (thread_db_get_thread_reg): Test for defunct threads.
538 (thread_db_set_thread_reg): Ditto.
539 * ptrace-target.c (ptrace_xfer_mem): Don't be noisy about ptrace
540 errors caused by illegal memory accesses.
542 2001-04-12 Andrew Cagney <ac131313@redhat.com>
544 * server.c: Include "gdbloop.h". Replace gdbsocket_poll with
546 * ptrace-target.c, linux-target.c, solaris-target.c:
547 * dummy-target.c: Update comments.
549 2001-04-11 Michael Snyder <msnyder@redhat.com>
551 * thread-db.c (struct gdbserv_thread): Add new flag 'stepping'.
552 (stop_all_threads): Add parameter 'process'.
553 Set the process->event_thread here, instead of in check_child_state.
554 (wait_all_threads): Accept process as a parameter instead of eventpid.
555 Handle SIGTRAP differently if the thread was singlestepping.
556 (thread_db_singlestep_program): Clear flags for event thread.
557 (thread_db_singlestep_thread): Ditto.
558 (thread_db_continue_program): Ditto.
559 (thread_db_continue_thread): Ditto.
560 (thread_db_check_child_state): Cancel the stepping flag.
561 Don't set the event thread, this is now done in stop_all_threads.
562 * linux-target.c (debug_get_reg, debug_get_pc): New functions.
563 Purely for debugging output. Architecture dependent.
565 2001-04-09 Michael Snyder <msnyder@redhat.com>
567 * thread_db.c (thread_db_continue_thread): Continue the actual
568 thread given, not necessarily the event thread.
569 (thread_db_singlestep_thread): Step the actual thread given,
570 not necessarily the event thread.
572 2001-04-09 Michael Snyder <msnyder@redhat.com>
574 * thread-db.c (stop_all_threads): Do not send SIGSTOP to a thread
575 if it has already been sigstopped.
576 (thread_db_continue_thread): New function. Continue a single thread.
577 (thread_db_singlestep_thread): New function. Step a single thread.
578 (thread_db_attach): Set up continue_thread, singlestep_thread methods.
580 2001-04-09 Michael Snyder <msnyder@redhat.com>
582 * linux-target.c (PC_REGNUM): New enum, define.
583 (decr_pc_after_break): New function. Architecture dependent.
584 This version will probably serve for all targets for which
585 DECR_PC_AFTER_BREAK is one. Those for which it is zero will
586 want to define a no-op version of this function.
587 * thread-db.c (first_thread_in_list): New function.
588 (update_thread_list, stop_all_threads, wait_all_threads,
589 continue_all_threads): Use first_thread_in_list in for loops.
590 (wait_all_threads): Handle SIGINT and SIGTRAP specially.
591 Throw away SIGINT for all threads but the event thread.
592 For SIGTRAP in other than the event thread, call decr_pc_after_break
593 (giving the thread a chance to hit the trap again later).
594 (thread_db_continue_program, thread_db_singlestep_program):
595 Continue the event thread before all the others.
597 2001-04-05 Michael Snyder <msnyder@redhat.com>
599 * thread-db.c (add_pending_signal, send_pending_signals):
600 New functions. Allow wait_all_threads to collect any signals
601 other than SIGSTOP from the threads and defer them.
602 (wait_all_threads): Loop on each thread and call waitpid until
603 we get SIGSTOP. Any other signals are pended by throwing them
604 into a list, and then sending them back to the threads using kill.
605 (thread_db_get_thread_reg): Remove temporary hack for libthread_db
606 bug. (thread_db_set_thread_reg): Ditto.
608 2001-04-04 Michael Snyder <msnyder@redhat.com>
610 * server.h (struct child_process): Add a 'running' flag.
611 * thread_db.c (continue_all_threads): Take gdbserv as argument.
612 Use it to find the current thread, and don't continue that one
613 (leave it up to the parent method to continue the event thread.)
614 (thread_db_continue_program): Child is running -- set a flag.
615 (thread_db_singlestep_program): Ditto.
616 (thread_db_check_child_state): Return immediately unles the child
617 is running. Because this is a polling routine, we don't want to
618 return any new events unles the child is officially running.
619 Call waitpid with -1 instead of the process->pid, so that we
620 can get events from the threads. Alternately use __WCLONE.
621 (thread_db_get_thread_reg): If thread is not specified, use
622 the event thread (if possible). Temporarily hack around a
623 bug in the thread_db library.
624 (thread_db_set_thread_reg): Ditto.
626 2001-04-04 Michael Snyder <msnyder@redhat.com>
628 * thread-db.c (continue_all_threads): Zero the attached, stopped,
629 and waited flags only if thread is successfully continued.
630 * linux-target.c: Fix broken endif directive.
631 * configure.in: Test for sys/procfs.h.
632 * config.in: Define HAVE_SYS_PROCFS_H.
633 * configure: Regenerate.
634 * thread-db.c (thread_list_lookup_by_pid): New function.
635 (thread_db_check_child_state): Cache the event thread.
636 (thread_db_fromtarget_thread_break): New function. Call
637 gdbserv_fromtarget_thread_break with the event thread.
638 (thread_db_attach): Take over the fromtarget_break vector.
639 * server.h (struct child_process): Add event_thread field.
641 2001-04-02 Michael Snyder <msnyder@redhat.com>
643 * thread-db.c: include errno.h for error reporting.
644 (struct gdbserv_thread): Add flag 'waited'.
645 (thread_db_type_str): New function for thread_extra_info.
646 (find_new_threads_callback): Use errno for error reporting.
647 (thread_db_thread_info): New function, for thread_extra_info.
648 (wait_all_threads): New function. Call waitpid on all threads
649 that have been attached or sigstopped. Incomplete -- needs to
650 push back any signals other than SIGSTOP.
651 (continue_all_threads): Send PTRACE_CONT only to threads that
652 have been attached or sigstopped.
653 (check_child_state): Call wait_all_threads.
654 (thread_db_attach): Activate thread_info vector.
656 2001-03-30 Michael Snyder <msnyder@redhat.com>
658 * linux-target.c (linux_read_reg, linux_write_reg): New functions.
659 Abstract out the code to actually read a register value, so that
660 it can be shared by several methods.
661 (get_gregset): Use sizeof (GREGSET_T).
662 (generic_linux_gg_reg_nr): New function. Support new reg methods.
663 (generic_linux_next_gg_reg): Ditto.
664 (generic_linux_sizeof_reg): Ditto.
665 (generic_linux_reg_format): Ditto.
666 (generic_linux_get_reg): New function. Newer register method,
667 non-thread-aware version.
668 (linux_attach): Use new register method in target vector.
669 * thread-db.c: Remove some developmental ifdef code.
670 (thread_db_get_thread_reg): Fall back on parentvec.get_reg
671 if no thread or no thread_agent available.
672 (thread_db_attach): Replace get_reg vector with get_thread_reg.
674 * ptrace-target.c (ptrace_write_user): For X86 target, skip
675 write-protected location in user/context address space.
676 * linux-target.c (linux_process_get_reg): Use linux_read_reg.
677 (linux_process_set_reg): Use linux_write_reg.
678 (put_gregset): New function. Write child's gregset.
679 (generic_linux_get_reg): Use SIZEOF_MAPPEDREG.
680 (generic_linux_set_reg): New function. Newer register method.
681 (linux_attach): Add set_reg to target vector, not process_set_reg.
682 * thread-db.c (ps_lsetregs): Implement by calling put_gregset.
683 (thread_db_set_thread_reg): New function. Implement set_thread_reg.
684 (thread_db_attach): Add set_thread_reg to target vector.
686 2001-03-29 Michael Snyder <msnyder@redhat.com>
688 * ptrace-target.c (ptrace_read_user, ptrace_write_user):
689 Accept an explicit pid instead of a struct gdbserv.
690 * linux-target.c: Include gdb_proc_service.h for gregset_t
691 (FIXME: better place to get it from?)
692 (linux_register_offset): Return signed long to facilitate
693 test for -1 error return value.
694 (ppc_linux_xfer_reg, linux_process_get_reg, linux_process_set_reg):
695 Calls to ptrace_read_user and ptrace_write_user now need a pid
696 argument instead of a struct gdbserv.
697 (reg_from_gregset): New function.
698 (reg_to_gregset): New function.
699 (get_gregset): New function. Read child's gregset.
700 * thread-db.c (ps_lgetregs): Implement by calling get_gregset.
701 (thread_db_dlopen, thread_db_open, thread_db_attach): Change
702 sense of return: -1 now means failure, 0 means success.
703 (thread_db_get_thread_reg): Call reg_from_gregset.
705 2001-03-29 Michael Snyder <msnyder@redhat.com>
707 * thread-db.c: Include signal.h, sys/ptrace.h (FIXME ptrace).
708 (struct symbol_cache): Make value (address) unsigned.
709 (add_symbol_to_list, lookup_cached_symbol): Ditto.
710 (struct gdbserv_thread): Add attached, stopped flags to thread.
711 (add_thread_to_list): Return pointer to new thread in list.
712 (delete_thread_from_list): New function.
713 (ps_pglobal_lookup, ps_pdread, ps_pdwrite, ps_ptread, ps_ptwrite):
714 Muffle debugging output.
715 (find_new_threads_callback): Muffle debugging output.
716 Add thread to list only if it isn't already there.
717 Use ptrace to attach to new threads. (FIXME explicit ptrace).
718 (update_thread_list): New function. Only place where td_ta_thr_iter
719 is called. Builds up the thread list, prunes it of any dead threads.
720 (thread_db_thread_next): Call update_thread_list.
721 (get_thread_signals): Read the values of the cancel and restart
722 signals from the target using hardcoded symbol names.
723 (stop_all_threads): New function. First cut. Deliver SIGSTOP
724 to all threads except the event thread and any new threads that
725 have just been attached.
726 (continue_all_threads): New function. First cut. Deliver
727 PTRACE_CONT to all threads except the main thread. Needs work.
728 (thread_db_continue_program): New function.
729 (thread_db_singlestep_program): New function.
730 (thread_db_get_thread_reg): New function, incomplete.
731 (thread_db_attach): Take over continue_program, singlestep_program.
732 Muffle some debugging output.
734 2001-03-26 Michael Snyder <msnyder@redhat.com>
736 * thread-db.c: New file. Linux thread debugging layer.
737 * linux-target.c (linux_attach): Call thread_db_attach.
738 * ptrace-target.c: Export ptrace_handle_waitstatus for
740 * configure.in: Add thread-db.c to linux target modules.
741 (GREGSET_T, FPREGSET_T, HAVE_LWPID_T, HAVE_PSADDR_T,
742 HAVE_PRGREGSET_T, HAVE_PRFPREGSET_T, LINUX_TARGET): Define.
743 * config.in (GREGSET_T, FPREGSET_T, HAVE_LWPID_T,
744 HAVE_PSADDR_T, HAVE_PRGREGSET_T, HAVE_PRFPREGSET_T, LINUX_TARGET):
746 * configure: Regenerate.
747 * Makefile.am (INCLUDES): Add $(srcdir)/../../include
748 (devo/include), so that header files can be shared with gdb.
749 (server_LDFLAGS): Add -ldl -rdynamic (FIXME configure).
750 * Makefile.in: Regenerate.
752 2001-03-22 Andrew Cagney <ac131313@redhat.com>
754 * server.c (main): Pass gdbserver.attach and process to
755 gdbserver_startup instead of gdbserver_poll.
757 2001-03-16 Michael Snyder <msnyder@redhat.com>
759 * linux-target.c (linux_detach): Pass new parameter to ptrace_detach.
760 Fix file header comment typo. Update copyright.
762 2001-03-16 Elena Zannoni <ezannoni@cygnus.com>
764 * dummy-target.c (dummy_detach): Add new parameter.
765 * linux-target.c (linux_detach): Ditto.
766 * ptrace-target.c (ptrace_detach): Ditto.
767 * solaris-target.c (solaris_detach): Ditto.
769 2001-03-14 Andrew Cagney <ac131313@redhat.com>
771 * ChangeLog: Move to here from ../native.
772 * Makefile.am: Ditto.
774 * configure.in: Ditto.
775 * dummy-target.c: Ditto.
776 * linux-target.c: Ditto.
777 * ptrace-target.c: Ditto.
778 * ptrace-target.h: Ditto.
781 * solaris-target.c: Ditto.
782 * Makefile.in: Regenerate.
786 2001-03-14 Andrew Cagney <ac131313@redhat.com>
788 * Makefile.am (INCLUDES): Update. Headers moved to ../include.
789 * Makefile.in: Regenerate.
791 2000-11-27 Michael Snyder <msnyder@happy.cygnus.com>
793 * ptrace-target.c (ptrace_xfer_mem): Return -1 on error.
795 2000-11-21 Michael Snyder <msnyder@cleaver.cygnus.com>
797 * ptrace-target.c (noop_flush_i_cache): Comment out superfluous
799 * linux-target.c (linux_process_get_reg): Return value of
800 linux_register_offset is unsigned (can't be less than zero).
801 (linux_process_rcmd): Just use '1' and '0' to control debug output.
803 2000-11-06 Michael Snyder <msnyder@cleaver.cygnus.com>
805 * dummy-target.c (dummy_attach): Fix order of memset args.
806 * linux-target.c (linux_attach): Ditto.
807 * ptrace-target.c (ptrace_attach): Ditto.
808 * solaris-target.c (solaris_attach): Ditto.
810 2000-10-19 Belinda Brazelle <brazelle@redhat.com>
812 * linux-target.c: Add support for Arm processor.
814 2000-10-12 Michael Snyder <msnyder@cleaver.cygnus.com>
816 * ptrace-target.c (ptrace_handle_waitstatus): Save exitstatus
817 in process->stop_signal.
819 2000-09-14 Michael Snyder <msnyder@michael.wirespeed.com>
821 * linux-target.c: Define regmap etc. for SH target.
822 * configure.in: Add defines for SH target.
823 * configure: Rebuild.
825 2000-09-13 Michael Snyder <msnyder@michael.wirespeed.com>
827 * server.h (fromtarget_terminate): New field. Also fix up
828 some overlooked function prototypes in the existing fields.
829 (struct client_process): Rename to struct child_process.
830 * linux-target.c (linux_fromtarget_terminate): New function.
831 Called from main when child terminates abnormally.
832 (linux_process_rcmd): New function. Catches "qRcmd" requests,
833 which are currently used just to turn on debug output.
834 * ptrace-target.c (ptrace_handle_waitstatus): Set stop_signal
835 for the WIFSTOPPED case. (ptrace_process_signal): Return zero
836 instead of the signal number, to let libremote know that we have
837 handled the signal. (ptrace_xfer_memory): Fix off-by-one error.
838 * solaris-target.c (solaris_fromtarget_terminate): New function.
839 * server.c (main): Call fromtarget_terminate for the 'T' case.
840 Do not request a one-second delay from gdbsocket_poll.
842 2000-09-08 Michael Snyder <msnyder@cleaver.cygnus.com>
844 * solaris-target.c: New file. Just a prototype, doesn't actually
845 work. Used to confirm configurability to multiple targets.
846 * dummy-target.c: New file. Dummy back-end for implementing new
847 targets such as solaris-target.c (above), before actually having
848 a working back-end. The dummy target works just like the sample
849 target in the samples directory.
850 * configure.in: Add AC_SUBST(TARGET_MODULES) to add the
851 appropriate target modules to the Makefile. Add solaris target.
852 * configure: Regenerate.
853 * Makefile.am: Move *-target.c into EXTRA_server_SOURCES.
854 Add TARGET_MODULES to server_LDADD. Define server_DEPENDENCIES.
855 * Makefile.in: Regenerate.
856 * ptrace-target.h: New file. Defines needed only by ptrace.
857 * server.h: Remove ptrace-specific defines to ptrace-target.h.
858 (struct server_vector): New, for target entry points.
859 (struct nativeserver): Rename to struct client_process.
860 * server.c: Use client_process for entry points, and server_vector.
861 * linux-target.c: Include ptrace-target.h.
862 (ppc_linux_get_reg): Rename to ppc_linux_process_get_reg.
863 (ppc_linux_set_reg): Rename to ppc_linux_process_set_reg.
864 (ppc_linux_get_regs): Rename to ppc_linux_process_get_regs.
865 (ppc_linux_set_regs): Rename to ppc_linux_process_set_regs.
866 (linux_get_reg): Rename to linux_process_get_reg.
867 (linux_set_reg): Rename to linux_process_set_reg.
868 (linux_get_regs): Rename to linux_process_get_regs.
869 (linux_set_regs): Rename to linux_process_set_regs.
870 (gdbserver_check_child_state): Rename to linux_check_child_state.
871 (gdbserver_fromtarget_break): Rename to linux_fromtarget_break.
872 (gdbserver_fromtarget_exit): Rename to linux_fromtarget_exit.
873 (struct server_vector gdbserver): New, defines entry points.
874 * ptrace-target.c: Include ptrace-target.h.
875 * aclocal.m4: New file.
877 2000-09-08 Michael Snyder <msnyder@cleaver.cygnus.com>
879 * linux-target.c (linux_get_reg, linux_set_reg): Remove direct
880 calls to ptrace; instead use service call into ptrace-target.c.
881 (linux_get_regs, linux_set_regs): Remove ifdef PPC; instead use
882 an ifdef in linux_attach to set up the target vector pointers.
883 (linux_attach): If PPC_LINUX_TARGET, use PPC versions of register
884 functions instead of generic ones. Define process_set_reg, so
885 that the "P" command is now handled.
887 2000-09-07 Michael Snyder <msnyder@cleaver.cygnus.com>
889 * ptrace-target.c (ptrace_read_user, ptrace_write_user): New
890 functions. Exported so that linux-target does not have to
891 call ptrace directly. (ptrace_get_gregs, ptrace_set_gregs,
892 ptrace_get_fpregs, ptrace_set_fpregs): New functions.
893 Exported for use by targets that use these methods.
894 (ptrace_xfer_mem): Use ptrace_arg3_type instead of long.
895 Add address to error messages.
896 * linux-target.c: Start using config macros, port to alpha and ppc.
897 (ppc_linux_xfer_reg, ppc_linux_getset_reg, ppc_linux_get_reg,
898 ppc_linux_set_reg, ppc_linux_get_regs, ppc_linux_set_regs):
899 New functions. Explicit knowledge of ppc linux register layout.
900 (linux_get_reg): Catch undefined regmap offsets.
901 (linux_set_reg): Ditto.
902 (linux_get_regs): Conditionally call ppc_linux_get_regs.
903 (linux_set_regs): Ditto.
904 * configure.in: Add PPC target, and export target defines.
905 * configure: Regenerate.
906 * config.in: Add new target defines.
908 2000-09-06 Michael Snyder <msnyder@cleaver.cygnus.com>
910 * Makefile.am: Define CC and CFLAGS.
911 * Makefile.in: Regenerate.
912 * configure.in: New file. Detect all manner of things.
913 * config.in: New file. Input file for config.h.
914 * configure: Generate.
915 * ptrace-target.c (ptrace_xfer_type): Move def'n into server.h.
916 (PTRACE_XFER_SIZE): Ditto.
917 * linux-target.c (ptrace_xfer_type): Move def'n into server.h.
918 (ptrace_arg3_type): Ditto.
919 * server.h: Use config macros to determine definitions of
920 ptrace_xfer_type, ptrace_arg1_type, ptrace_arg2_type,
921 ptrace_arg3_type, ptrace_arg4_type.
923 2000-09-05 Michael Snyder <msnyder@cleaver.cygnus.com>
925 * server.c (main): Detect exit status, and call fromtarget_exit
926 instead of fromtarget_break.
927 * linux-target.c (gdbserver_fromtarget_exit): New function.
928 * ptrace-target.c (ptrace_kill_program, ptrace_sigkill_program):
929 New functions. Send signals to the child.
930 (ptrace_exit_program): New function.
932 2000-09-05 Michael Snyder <msnyder@cleaver.cygnus.com>
934 * linux-target.c (linux_attach): Activate process_signal vector.
935 (gdbserver_check_child_state): Send real received signal, instead
937 * ptrace-target.c (ptrace_break_program): New function. Implement
938 control-c interrupt from host.
939 (ptrace_process_signal): Implement continuation signal.
940 (ptrace_singlestep_program): Ditto.
941 (ptrace_continue_program): Ditto.
942 (ptrace_get_trap_number): New function. Return signal to libremote.
943 (ptrace_compute_signal): Ditto.
944 (ptrace_attach): Activate break_program, process_signal, compute_signal
945 and get_trap_number vectors.
946 server.h (struct nativeserver): add signal_to_send field.
947 Rename stop_sig to stop_signal.
949 2000-09-05 Michael Snyder <msnyder@cleaver.cygnus.com>
951 * ptrace-target.c (ptrace_singlestep_program): Make ptrace args long.
952 FIXME: needs to be configurable.
953 * linux-target.c (linux_get_reg, linux_set_reg): Make regaddr and
954 regval configurable types. FIXME needs real configury.
956 2000-09-01 Michael Snyder <msnyder@cleaver.cygnus.com>
957 New directory "native" for native gdbserver in libremote.
958 * server.c: New file. Entry point and main event loop.
959 * server.h: New file. Shared declarations.
960 * linux-target.c: New file. Linux version of libremote native stub.
961 * ptrace-target.c: New file. Ptrace operations for libremote stub.
962 * Makefile.am: New file. Automake source.
963 * Makefile.in: New file. Automake-generated makefile source.
964 Note: this work is incomplete and only partially working.