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2014-01-16btrace, gdbserver: read branch trace incrementallyMarkus Metzger1-2/+9
Read branch trace data incrementally and extend the current trace rather than discarding it and reading the entire trace buffer each time. If the branch trace buffer overflowed, we can't extend the current trace so we discard it and start anew by reading the entire branch trace buffer. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * common/linux-btrace.c (perf_event_read_bts, linux_read_btrace): Support delta reads. (linux_disable_btrace): Change return type. * common/linux-btrace.h (linux_read_btrace): Change parameters and return type to allow error reporting. Update users. (linux_disable_btrace): Change return type. Update users. * common/btrace-common.h (btrace_read_type) <BTRACE_READ_DELTA>: New. (btrace_error): New. (btrace_block) <begin>: Comment on BEGIN == 0. * btrace.c (btrace_compute_ftrace): Start from the end of the current trace. (btrace_stitch_trace, btrace_clear_history): New. (btrace_fetch): Read delta trace, return if replaying. (btrace_clear): Move clear history code to btrace_clear_history. (parse_xml_btrace): Throw an error if parsing failed. * target.h (struct target_ops) <to_read_btrace>: Change parameters and return type to allow error reporting. (target_read_btrace): Change parameters and return type to allow error reporting. * target.c (target_read_btrace): Update. * remote.c (remote_read_btrace): Support delta reads. Pass errors on. * NEWS: Announce it. gdbserver/ * target.h (target_ops) <read_btrace>: Change parameters and return type to allow error reporting. * server.c (handle_qxfer_btrace): Support delta reads. Pass trace reading errors on. * linux-low.c (linux_low_read_btrace): Pass trace reading errors on. (linux_low_disable_btrace): New.
2014-01-16btrace: uppercase btrace_read_typeMarkus Metzger1-2/+2
2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * common/btrace-common.h (btrace_read_type) <btrace_read_all>: Change to ... (btrace_read_type) <BTRACE_READ_ALL>: ... this. Update users. (btrace_read_type) <btrace_read_new>: Change to ... (btrace_read_type) <BTRACE_READ_NEW>: ... this. Update users.
2014-01-08GDBserver: Discard previous queued events when GDB disconnects.Pedro Alves1-3/+6
... not when a new GDB connection sends the status packet ('?'). Mainly just a cleanup/simplification, as GDB always sends '?' first. Tested on x86_64 Fedora 17. 2014-01-08 Pedro Alves <palves@redhat.com> * server.c (handle_status): Don't discard previous queued stop replies or thread's pending status here. (main) <disconnection>: Do it here instead.
2014-01-08[remote/gdbserver] Don't lose signals when reconnecting.Pedro Alves1-42/+170
Currently, when GDB connects in all-stop mode, GDBserver always responds to the status packet with a GDB_SIGNAL_TRAP, even if the program is actually stopped for some other signal. (gdb) tar rem ... ... (gdb) c Program received signal SIGUSR1, User defined signal 1. (gdb) disconnect (gdb) tar rem ... (gdb) c (Or a GDB crash instead of an explicit disconnect.) This results in the program losing that signal on that last continue, because gdb will tell the target to resume with no signal (to suppress the GDB_SIGNAL_TRAP, due to 'handle SISGTRAP nopass'), and that will actually suppress the real signal the program had stopped for (SIGUSR1). To fix that, I think we should make GDBserver report the real signal the thread had stopped for in response to the status packet: @item ? @cindex @samp{?} packet Indicate the reason the target halted. The reply is the same as for step and continue. But, that raises the question -- which thread are we reporting the status for? Due to how the RSP in all-stop works, we can only report one status. The status packet's response is a stop reply packet, so it includes the thread identifier, so it's not a problem packet-wise. However, GDBserver is currently always reporting the status for first thread in the thread list, even though that may well not be the thread that got the signal that caused the program to stop. So the next logical step would be to report the status for the last_ptid/last_status thread (the last event reported to gdb), if it's still around; and if not, fallback to some other thread. There's an issue on the GDB side with that, though... GDB currently always adds the thread reported in response to the status query as the first thread in its list. That means that if we start with e.g., (gdb) info threads 3 Thread 1003 ... * 2 Thread 1002 ... 1 Thread 1001 ... And reconnect: (gdb) disconnect (gdb) tar rem ... We end up with: (gdb) info threads 3 Thread 1003 ... 2 Thread 1001 ... * 1 Thread 1002 ... Not a real big issue, but it's reasonably fixable, by having GDB fetch/sync the thread list before fetching the status/'?', and then using the status to select the right thread as current on the GDB side. Holes in the thread numbers are squashed before/after reconnection (e.g., 2,3,5 becomes 1,2,3), but the order is preserved, which I think is both good, and good enough. However (yes, there's more...), the previous GDB that was connected might have had gdbserver running in non-stop mode, or could have left gdbserver doing disconnected tracing (which also forces non-stop), and if the new gdb/connection is in all-stop mode, we can end up with more than one thread with a signal to report back to gdb. As we can only report one thread/status (in the all-stop RSP variant; the non-stop variant doesn't have this issue), we get to do what we do at every other place we have this situation -- leave events we can't report right now as pending, so that the next resume picks them up. Note all this ammounts to a QoI change, within the existing framework. There's really no RSP change here. The only user visible change (other than that the signal is program is stopped at isn't lost / is passed to the program), is in "info program", that now can show the signal the program stopped for. Of course, the next resume will respect the pass/nopass setting for the signal in question. It'd be reasonable to have the initial connection tell the user the program was stopped with a signal, similar to when we load a core to debug, but I'm leaving that out for a future change. I think we'll need to either change how handle_inferior_event & co handle stop_soon, or maybe bypass them completely (like fork-child.c:startup_inferior) for that. Tested on x86_64 Fedora 17. gdb/gdbserver/ 2014-01-08 Pedro Alves <palves@redhat.com> * gdbthread.h (struct thread_info) <status_pending_p>: New field. * server.c (visit_actioned_threads, handle_pending_status): New function. (handle_v_cont): Factor out parts to ... (resume): ... this new function. If in all-stop, and a thread being resumed has a pending status, report it without actually resuming. (myresume): Adjust to use the new 'resume' function. (clear_pending_status_callback, set_pending_status_callback) (find_status_pending_thread_callback): New functions. (handle_status): Handle the case of multiple threads having interesting statuses to report. Report threads' real last signal instead of always reporting GDB_SIGNAL_TRAP. Look for a thread with an interesting thread to report the status for, instead of always reporting the status of the first thread. gdb/ 2014-01-08 Pedro Alves <palves@redhat.com> * remote.c (remote_add_thread): Add threads silently if starting up. (remote_notice_new_inferior): If in all-stop, and starting up, don't call notice_new_inferior. (get_current_thread): New function, factored out from ... (add_current_inferior_and_thread): ... this. Adjust. (remote_start_remote) <all-stop>: Fetch the thread list. If we found any thread, then select the remote's current thread as GDB's current thread too. gdb/testsuite/ 2014-01-08 Pedro Alves <palves@redhat.com> * gdb.threads/reconnect-signal.c: New file. * gdb.threads/reconnect-signal.exp: New file.
2014-01-01Update Copyright year range in all files maintained by GDB.Joel Brobecker1-1/+1
2014-01-01Update copyright year in gdb/gdbserver/gdbreplay version output.Joel Brobecker1-1/+1
gdb/ChangeLog: * top.c (print_gdb_version): Set copyright year to 2014. gdb/gdbserver/ChangeLog: * gdbserver.c (gdbserver_version): Set copyright year to 2014. * gdbreplay.c (gdbreplay_version): Likewise.
2013-10-02[GDBserver]: Silence exits if GDB is connected through stdio.Pedro Alves1-1/+4
If we make gdbserver gdb_continue_to_end actually expect a process exit with GDBserver, we get many testsuite failures with the remote stdio board: -PASS: gdb.arch/amd64-disp-step.exp: continue until exit at amd64-disp-step +FAIL: gdb.arch/amd64-disp-step.exp: continue until exit at amd64-disp-step (the program exited) -PASS: gdb.base/break.exp: continue until exit at recursive next test +FAIL: gdb.base/break.exp: continue until exit at recursive next test (the program exited) -PASS: gdb.base/chng-syms.exp: continue until exit at breakpoint first time through +FAIL: gdb.base/chng-syms.exp: continue until exit at breakpoint first time through (the program exited) ... etc. ... This is what the log shows for all of them: (gdb) continue Continuing. Child exited with status 0 GDBserver exiting [Inferior 1 (process 22721) exited normally] (gdb) FAIL: gdb.arch/amd64-disp-step.exp: continue until exit (the program exited) The problem is the whole "Child exited ... GDBserver exiting" output, that comes out of GDBserver, and that the testsuite is not expecting. I pondered somehow making the testsuite adjust to this. But, testsuite aside, I think GDBserver should not be outputting this at all when GDB is connected through stdio. GDBserver will be printing this in GDB's console, but the user can already tell from the regular output that the inferior is gone. Again, manually: (gdb) tar remote | ./gdbserver/gdbserver - program Remote debugging using | ./gdbserver/gdbserver - program Process program created; pid = 22486 stdin/stdout redirected Remote debugging using stdio done. Loaded symbols for /lib64/ld-linux-x86-64.so.2 0x000000323d001530 in _start () from /lib64/ld-linux-x86-64.so.2 (gdb) c Continuing. Child exited with status 1 ^^^^^^^^^^^^^^^^^^^^^^^^^^ GDBserver exiting ^^^^^^^^^^^^^^^^^ [Inferior 1 (process 22486) exited with code 01] (gdb) Suppressing those two lines makes the output be exactly like when debugging against a remote tcp gdbserver: (gdb) c Continuing. [Inferior 1 (process 22914) exited with code 01] (gdb) 2013-10-02 Pedro Alves <palves@redhat.com> * server.c (process_serial_event): Don't output "GDBserver exiting" if GDB is connected through stdio. * target.c (mywait): Likewise, be silent if GDB is connected through stdio.
2013-09-18gdb/gdbserver/Yao Qi1-0/+1
2013-09-18 Yao Qi <yao@codesourcery.com> PR server/15959 * server.c (start_inferior): Clear 'resume_info'. gdb/testsuite/ 2013-09-18 Yao Qi <yao@codesourcery.com> * gdb.server/wrapper.c: New. * gdb.server/wrapper.exp: New.
2013-09-05[gdbserver] Split a new hostio.h file out of server.h.Pedro Alves1-0/+1
gdb/gdbserver/ 2013-09-05 Pedro Alves <palves@redhat.com> * server.h (handle_vFile, hostio_last_error_from_errno): Move to ... * hostio.h: ... this new file. * hostio.c, server.c, linux-low.c, nto-low.c, spu-low, win32-low.c: Include hostio.h.
2013-09-05[gdbserver] Split a new dll.h file out of server.h.Pedro Alves1-0/+1
gdb/gdbserver/ 2013-09-05 Pedro Alves <palves@redhat.com> * dll.c, inferiors.c, remote-utils.c, server.c: Include "dll.h". * server.h (struct dll_info, all_dlls, dlls_changed, clear_dlls) (loaded_dll, unloaded_dll): Move to ... * dll.h: ... this new file. * inferiors.c, remote-utils.c, win32-low.c: Include "dll.h".
2013-09-05[gdbserver] Split a new tracepoint.h file out of server.h.Pedro Alves1-0/+1
gdb/gdbserver/ 2013-09-05 Pedro Alves <palves@redhat.com> * ax.c, linux-low.c, linux-x86-low.c, server.c: Include tracepoint.h. * server.h (IPA_BUFSIZ, initialize_tracepoint, tracing) (disconnected_tracing, tracepoint_look_up_symbols, stop_tracing (handle_tracepoint_general_set, handle_tracepoint_query) (tracepoint_finished_step, tracepoint_was_hit) (release_while_stepping_state_list, current_traceframe) (in_readonly_region, traceframe_read_mem) (fetch_traceframe_registers, traceframe_read_sdata) (traceframe_read_info, struct fast_tpoint_collect_status) (fast_tracepoint_collecting, force_unlock_trace_buffer) (handle_tracepoit_bkpts, initialize_low_tracepoint) (supply_fast_tracepoint_registers) (supply_static_tracepoint_registers, set_trampoline_buffer_space) (ipa_tdesc, claim_trampoline_space) (have_fast_tracepoint_trampoline_buffer, gdb_agent_about_to_close) (agent_mem_read, agent_get_trace_state_variable_value) (agent_set_trace_state_variable_value, agent_tsv_read) (agent_mem_read_string, get_raw_reg_func_addr) (get_get_tsv_func_addr, get_set_tsv_func_addr): Move to ... * tracepoint.h: ... this new file.
2013-09-02server.c:gdb_read_memory: Fix error return.Pedro Alves1-1/+1
When I added gdb_read_memory, with bits factored out from elsewhere, I missed adjusting this error return. gdb_read_memory has an interface similar to Like GDB's xfer_partial: > /* Read trace frame or inferior memory. Returns the number of bytes > actually read, zero when no further transfer is possible, and -1 on > error. Return of a positive value smaller than LEN does not > indicate there's no more to be read, only the end of the transfer. Returning EIO, a positive value, is obviously bogus, for the caller will confuse it with a successful partial transfer. Found by inspection. Tested on x86_64 Fedora 17. gdb/gdbserver/ 2013-09-02 Pedro Alves <palves@redhat.com> * server.c (gdb_read_memory): Return -1 on traceframe memory read error instead of EIO.
2013-08-28PR server/15604Jan Kratochvil1-0/+5
gdb/gdbserver/ 2013-08-28 Jan Kratochvil <jan.kratochvil@redhat.com> PR server/15604 * linux-low.c: Include filestuff.h. (linux_create_inferior) <pid == 0>: Call close_most_fds. * lynx-low.c: Include filestuff.h. (lynx_create_inferior) <pid == 0>: Call close_most_fds. * server.c: Include filestuff.h. (main): Call notice_open_fds. * spu-low.c: Include filestuff.h. (spu_create_inferior) <pid == 0>: Call close_most_fds.
2013-07-24 gdb/Luis Machado1-4/+11
* Makefile.in (SFILES): Add common/target-common.c. Add common/target-common.h to headers. (COMMON_OBS): Add target-common.o. (target-common.o): New target. * linux-nat.h (resume_kind): Move to common/target-common.h. * target.c (target_waitstatus_to_string): Move to common/target-common.c. * target.h: Include target-common.h. (target_waitkind): Move to common/target-common.h. (target_waitstatus): Likewise. (TARGET_WNOHANG): Likewise. * common/target-common.c: New file. * common/target-common.h: New file. gdb/gdbserver/ * Makefile.in (SFILES): /common/target-common.c. (OBS): Add target-common.o. (server_h): Add $(srcdir)/../common/target-common.h. (target-common.o): New target. * server.c (queue_stop_reply_callback): Free status string after use. * target.c (target_waitstatus_to_string): Remove. * target.h: Include target-common.h. (resume_kind): Likewise. (target_waitkind): Likewise. (target_waitstatus): Likewise. (TARGET_WNOHANG): Likewise.
2013-07-01Rely on gnulib's unistd.h replacement.Pedro Alves1-2/+0
With gnulib's unistd module, we can assume unistd.h is always present, and that STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO are always defined. Don't remove unistd.h from GDB's configure.ac, as later tests in the file use HAVE_UNISTD_H checks. gdb/ 2013-07-01 Pedro Alves <palves@redhat.com> * defs.h: Don't check HAVE_UNISTD_H before including <unistd.h>. (STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO): Delete. * tracepoint.c: Don't check HAVE_UNISTD_H before including <unistd.h>. gdb/gdbserver/ 2013-07-01 Pedro Alves <palves@redhat.com> * event-loop.c: Don't check HAVE_UNISTD_H before including <unistd.h>. * gdbreplay.c: Likewise. * remote-utils.c: Likewise. * server.c: Likewise. * configure.ac: Don't check for unistd.h. * configure: Regenerate.
2013-06-07[GDBserver] Multi-process + multi-archPedro Alves1-12/+13
This patch makes GDBserver support multi-process + biarch. Currently, if you're debugging more than one process at once with a single gdbserver (in extended-remote mode), then all processes must have the same architecture (e.g., 64-bit vs 32-bit). Otherwise, you see this: Added inferior 2 [Switching to inferior 2 [<null>] (<noexec>)] Reading symbols from /home/pedro/gdb/tests/main32...done. Temporary breakpoint 2 at 0x4004cf: main. (2 locations) Starting program: /home/pedro/gdb/tests/main32 warning: Selected architecture i386 is not compatible with reported target architecture i386:x86-64 warning: Architecture rejected target-supplied description Remote 'g' packet reply is too long: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090cfffff0000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000b042f7460000000000020000230000002b0000002b0000002b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f03000000000000ffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f00003b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ... etc, etc ... Even though the process was running a 32-bit program, GDBserver sent back to GDB a register set in 64-bit layout. A patch (http://sourceware.org/ml/gdb-patches/2012-11/msg00228.html) a while ago made GDB track a target_gdbarch per inferior, and as consequence, fetch a target description per-inferior. This patch is the GDBserver counterpart, that makes GDBserver keep track of each process'es XML target description and register layout. So in the example above, GDBserver will send the correct register set in 32-bit layout to GDB. A new "struct target_desc" object (tdesc for short) is added, that holds the target description and register layout information about each process. Each `struct process_info' holds a pointer to a target description. The regcache also gains a pointer to a target description, mainly for convenience, and parallel with GDB (and possible future support for programs that flip processor modes). The low target's arch_setup routines are responsible for setting the process'es correct tdesc. This isn't that much different to how things were done before, except that instead of detecting the inferior process'es architecture and calling the corresponding init_registers_FOO routine, which would change the regcache layout globals and recreate the threads' regcaches, the regcache.c globals are gone, and the init_registers_$BAR routines now each initialize a separate global struct target_desc object (one for each arch variant GDBserver supports), and so all the init_registers_$BAR routines that are built into GDBserver are called early at GDBserver startup time (similarly to how GDB handles its built-in target descriptions), and then the arch_setup routine is responsible for making process_info->tdesc point to one of these target description globals. The regcache module is all parameterized to get the regcache's layout from the tdesc object instead of the old register_bytes, etc. globals. The threads' regcaches are now created lazily. The old scheme where we created each of them when we added a new thread doesn't work anymore, because we add the main thread/lwp before we see it stop for the first time, and it is only when we see the thread stop for the first time that we have a chance of determining the inferior's architecture (through the_low_target.arch_setup). Therefore when we add the main thread we don't know which architecture/tdesc its regcache should have. This patch makes the gdb.multi/multi-arch.exp test now pass against (extended-remote) GDBserver. It currently fails, without this patch. The IPA also uses the regcache, so it gains a new global struct target_desc pointer, which points at the description of the process it is loaded in. Re. the linux-low.c & friends changes. Since the register map etc. may differ between processes (64-bit vs 32-bit) etc., the linux_target_ops num_regs, regmap and regset_bitmap data fields are no longer sufficient. A new method is added in their place that returns a pointer to a new struct that includes all info linux-low.c needs to access registers of the current inferior. The patch/discussion that originally introduced linux-low.c:disabled_regsets mentions that the disabled_regsets set may be different per mode (in a biarch setup), and indeed that is cleared whenever we start a new (first) inferior, so that global is moved as well behind the new `struct regs_info'. On the x86 side: I simply replaced the i387-fp.c:num_xmm_registers global with a check for 64-bit or 32-bit process, which is equivalent to how the global was set. This avoided coming up with some more general mechanism that would work for all targets that use this module (GNU/Linux, Windows, etc.). Tested: GNU/Linux IA64 GNU/Linux MIPS64 GNU/Linux PowerPC (Fedora 16) GNU/Linux s390x (Fedora 16) GNU/Linux sparc64 (Debian) GNU/Linux x86_64, -m64 and -m32 (Fedora 17) Cross built, and smoke tested: i686-w64-mingw32, under Wine. GNU/Linux TI C6x, by Yao Qi. Cross built but otherwise not tested: aarch64-linux-gnu arm-linux-gnu m68k-linux nios2-linux-gnu sh-linux-gnu spu tilegx-unknown-linux-gnu Completely untested: GNU/Linux Blackfin GNU/Linux CRIS GNU/Linux CRISv32 GNU/Linux TI Xtensa GNU/Linux M32R LynxOS QNX NTO gdb/gdbserver/ 2013-06-07 Pedro Alves <palves@redhat.com> * Makefile.in (OBS): Add tdesc.o. (IPA_OBJS): Add tdesc-ipa.o. (tdesc-ipa.o): New rule. * ax.c (gdb_eval_agent_expr): Adjust register_size call to new interface. * linux-low.c (new_inferior): Delete. (disabled_regsets, num_regsets): Delete. (linux_add_process): Adjust to set the new per-process new_inferior flag. (linux_detach_one_lwp): Adjust to call regcache_invalidate_thread. (linux_wait_for_lwp): Adjust. Only call arch_setup if the event was a stop. When calling arch_setup, switch the current inferior to the thread that got an event. (linux_resume_one_lwp): Adjust to call regcache_invalidate_thread. (regsets_fetch_inferior_registers) (regsets_store_inferior_registers): New regsets_info parameter. Adjust to use it. (linux_register_in_regsets): New regs_info parameter. Adjust to use it. (register_addr, fetch_register, store_register): New usrregs_info parameter. Adjust to use it. (usr_fetch_inferior_registers, usr_store_inferior_registers): New parameter regs_info. Adjust to use it. (linux_fetch_registers): Get the current inferior's regs_info, and adjust to use it. (linux_store_registers): Ditto. [HAVE_LINUX_REGSETS] (initialize_regsets_info): New. (initialize_low): Don't initialize the target_regsets here. Call initialize_low_arch. * linux-low.h (target_regsets): Delete declaration. (struct regsets_info): New. (struct usrregs_info): New. (struct regs_info): New. (struct process_info_private) <new_inferior>: New field. (struct linux_target_ops): Delete the num_regs, regmap, and regset_bitmap fields. New field regs_info. [HAVE_LINUX_REGSETS] (initialize_regsets_info): Declare. * i387-fp.c (num_xmm_registers): Delete. (i387_cache_to_fsave, i387_fsave_to_cache): Adjust find_regno calls to new interface. (i387_cache_to_fxsave, i387_cache_to_xsave, i387_fxsave_to_cache) (i387_xsave_to_cache): Adjust find_regno calls to new interface. Infer the number of xmm registers from the regcache's target description. * i387-fp.h (num_xmm_registers): Delete. * inferiors.c (add_thread): Don't install the thread's regcache here. * proc-service.c (gregset_info): Fetch the current inferior's regs_info. Adjust to use it. * regcache.c: Include tdesc.h. (register_bytes, reg_defs, num_registers) (gdbserver_expedite_regs): Delete. (get_thread_regcache): If the thread doesn't have a regcache yet, create one, instead of aborting gdbserver. (regcache_invalidate_one): Rename to ... (regcache_invalidate_thread): ... this. (regcache_invalidate_one): New. (regcache_invalidate): Only invalidate registers of the current process. (init_register_cache): Add target_desc parameter, and use it. (new_register_cache): Ditto. Assert the target description has a non zero registers_size. (regcache_cpy): Add assertions. Adjust. (realloc_register_cache, set_register_cache): Delete. (registers_to_string, registers_from_string): Adjust. (find_register_by_name, find_regno, find_register_by_number) (register_cache_size): Add target_desc parameter, and use it. (free_register_cache_thread, free_register_cache_thread_one) (regcache_release, register_cache_size): New. (register_size): Add target_desc parameter, and use it. (register_data, supply_register, supply_register_zeroed) (supply_regblock, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Adjust. * regcache.h (struct target_desc): Forward declare. (struct regcache) <tdesc>: New field. (init_register_cache, new_register_cache): Add target_desc parameter. (regcache_invalidate_thread): Declare. (regcache_invalidate_one): Delete declaration. (regcache_release): Declare. (find_register_by_number, register_cache_size, register_size) (find_regno): Add target_desc parameter. (gdbserver_expedite_regs, gdbserver_xmltarget): Delete declarations. * remote-utils.c: Include tdesc.h. (outreg, prepare_resume_reply): Adjust. * server.c: Include tdesc.h. (gdbserver_xmltarget): Delete declaration. (get_features_xml, process_serial_event): Adjust. * server.h [IN_PROCESS_AGENT] (struct target_desc): Forward declare. (struct process_info) <tdesc>: New field. (ipa_tdesc): Declare. * tdesc.c: New file. * tdesc.h: New file. * tracepoint.c: Include tdesc.h. [IN_PROCESS_AGENT] (ipa_tdesc): Define. (get_context_regcache): Adjust to pass ipa_tdesc down. (do_action_at_tracepoint): Adjust to get the register cache size from the context regcache's description. (traceframe_walk_blocks): Adjust to get the register cache size from the current trace frame's description. (traceframe_get_pc): Adjust to get current trace frame's description and pass it down. (gdb_collect): Adjust to get the register cache size from the IPA's description. * linux-amd64-ipa.c (tdesc_amd64_linux): Declare. (gdbserver_xmltarget): Delete. (initialize_low_tracepoint): Set the ipa's target description. * linux-i386-ipa.c (tdesc_i386_linux): Declare. (initialize_low_tracepoint): Set the ipa's target description. * linux-x86-low.c: Include tdesc.h. [__x86_64__] (is_64bit_tdesc): New. (ps_get_thread_area, x86_get_thread_area): Use it. (i386_cannot_store_register): Rename to ... (x86_cannot_store_register): ... this. Use is_64bit_tdesc. (i386_cannot_fetch_register): Rename to ... (x86_cannot_fetch_register): ... this. Use is_64bit_tdesc. (x86_fill_gregset, x86_store_gregset): Adjust register_size calls to new interface. (target_regsets): Rename to ... (x86_regsets): ... this. (x86_get_pc, x86_set_pc): Adjust register_size calls to new interface. (x86_siginfo_fixup): Use is_64bit_tdesc. [__x86_64__] (tdesc_amd64_linux, tdesc_amd64_avx_linux) (tdesc_x32_avx_linux, tdesc_x32_linux) (tdesc_i386_linux, tdesc_i386_mmx_linux, tdesc_i386_avx_linux): Declare. (x86_linux_update_xmltarget): Delete. (I386_LINUX_XSAVE_XCR0_OFFSET): Define. (have_ptrace_getfpxregs, have_ptrace_getregset): New. (AMD64_LINUX_USER64_CS): New. (x86_linux_read_description): New, based on x86_linux_update_xmltarget. (same_process_callback): New. (x86_arch_setup_process_callback): New. (x86_linux_update_xmltarget): New. (x86_regsets_info): New. (amd64_linux_regs_info): New. (i386_linux_usrregs_info): New. (i386_linux_regs_info): New. (x86_linux_regs_info): New. (x86_arch_setup): Reimplement. (x86_install_fast_tracepoint_jump_pad): Use is_64bit_tdesc. (x86_emit_ops): Ditto. (the_low_target): Adjust. Install x86_linux_regs_info, x86_cannot_fetch_register, and x86_cannot_store_register. (initialize_low_arch): New. * linux-ia64-low.c (tdesc_ia64): Declare. (ia64_fetch_register): Adjust. (ia64_usrregs_info, regs_info): New globals. (ia64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sparc-low.c (tdesc_sparc64): Declare. (sparc_fill_gregset_to_stack, sparc_store_gregset_from_stack): Adjust. (sparc_arch_setup): New function. (sparc_regsets_info, sparc_usrregs_info, regs_info): New globals. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-ppc-low.c (tdesc_powerpc_32l, tdesc_powerpc_altivec32l) (tdesc_powerpc_cell32l, tdesc_powerpc_vsx32l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_e500l) (tdesc_powerpc_64l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell64l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_64l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx64l): Declare. (ppc_cannot_store_register, ppc_collect_ptrace_register) (ppc_supply_ptrace_register, parse_spufs_run, ppc_get_pc) (ppc_set_pc, ppc_get_hwcap): Adjust. (ppc_usrregs_info): Forward declare. (!__powerpc64__) ppc_regmap_adjusted: New global. (ppc_arch_setup): Adjust to the current process'es target description. (ppc_fill_vsxregset, ppc_store_vsxregset, ppc_fill_vrregset) (ppc_store_vrregset, ppc_fill_evrregset, ppc_store_evrregse) (ppc_store_evrregset): Adjust. (target_regsets): Rename to ... (ppc_regsets): ... this, and make static. (ppc_usrregs_info, ppc_regsets_info, regs_info): New globals. (ppc_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-s390-low.c (tdesc_s390_linux32, tdesc_s390_linux32v1) (tdesc_s390_linux32v2, tdesc_s390_linux64, tdesc_s390_linux64v1) (tdesc_s390_linux64v2, tdesc_s390x_linux64, tdesc_s390x_linux64v1) (tdesc_s390x_linux64v2): Declare. (s390_collect_ptrace_register, s390_supply_ptrace_register) (s390_fill_gregset, s390_store_last_break): Adjust. (target_regsets): Rename to ... (s390_regsets): ... this, and make static. (s390_get_pc, s390_set_pc): Adjust. (s390_get_hwcap): New target_desc parameter, and use it. [__s390x__] (have_hwcap_s390_high_gprs): New global. (s390_arch_setup): Adjust to set the current process'es target description. Don't adjust the regmap. (s390_usrregs_info, s390_regsets_info, regs_info): New globals. [__s390x__] (s390_usrregs_info_3264, s390_regsets_info_3264) (regs_info_3264): New globals. (s390_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-mips-low.c (tdesc_mips_linux, tdesc_mips_dsp_linux) (tdesc_mips64_linux, tdesc_mips64_dsp_linux): Declare. [__mips64] (init_registers_mips_linux) (init_registers_mips_dsp_linux): Delete defines. [__mips64] (tdesc_mips_linux, tdesc_mips_dsp_linux): New defines. (have_dsp): New global. (mips_read_description): New, based on mips_arch_setup. (mips_arch_setup): Reimplement. (get_usrregs_info): New function. (mips_cannot_fetch_register, mips_cannot_store_register) (mips_get_pc, mips_set_pc, mips_fill_gregset, mips_store_gregset) (mips_fill_fpregset, mips_store_fpregset): Adjust. (target_regsets): Rename to ... (mips_regsets): ... this, and make static. (mips_regsets_info, mips_dsp_usrregs_info, mips_usrregs_info) (dsp_regs_info, regs_info): New globals. (mips_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-arm-low.c (tdesc_arm, tdesc_arm_with_iwmmxt) (tdesc_arm_with_vfpv2, tdesc_arm_with_vfpv3, tdesc_arm_with_neon): Declare. (arm_fill_vfpregset, arm_store_vfpregset): Adjust. (arm_read_description): New, with bits factored from arm_arch_setup. (arm_arch_setup): Reimplement. (target_regsets): Rename to ... (arm_regsets): ... this, and make static. (arm_regsets_info, arm_usrregs_info, regs_info): New globals. (arm_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m68k-low.c (tdesc_m68k): Declare. (target_regsets): Rename to ... (m68k_regsets): ... this, and make static. (m68k_regsets_info, m68k_usrregs_info, regs_info): New globals. (m68k_regs_info): New function. (m68k_arch_setup): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sh-low.c (tdesc_sharch): Declare. (target_regsets): Rename to ... (sh_regsets): ... this, and make static. (sh_regsets_info, sh_usrregs_info, regs_info): New globals. (sh_regs_info, sh_arch_setup): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-bfin-low.c (tdesc_bfin): Declare. (bfin_arch_setup): New function. (bfin_usrregs_info, regs_info): New globals. (bfin_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_cris): Declare. (cris_arch_setup): New function. (cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_crisv32): Declare. (cris_arch_setup): New function. (cris_regsets_info, cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m32r-low.c (tdesc_m32r): Declare. (m32r_arch_setup): New function. (m32r_usrregs_info, regs_info): New globals. (m32r_regs_info): Adjust. (initialize_low_arch): New function. * linux-tic6x-low.c (tdesc_tic6x_c64xp_linux) (tdesc_tic6x_c64x_linux, tdesc_tic6x_c62x_linux): Declare. (tic6x_usrregs_info): Forward declare. (tic6x_read_description): New function, based on ... (tic6x_arch_setup): ... this. Reimplement. (target_regsets): Rename to ... (tic6x_regsets): ... this, and make static. (tic6x_regsets_info, tic6x_usrregs_info, regs_info): New globals. (tic6x_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-xtensa-low.c (tdesc_xtensa): Declare. (xtensa_fill_gregset, xtensa_store_gregset): Adjust. (target_regsets): Rename to ... (xtensa_regsets): ... this, and make static. (xtensa_regsets_info, xtensa_usrregs_info, regs_info): New globals. (xtensa_arch_setup, xtensa_regs_info): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-nios2-low.c (tdesc_nios2_linux): Declare. (nios2_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (nios2_regsets): ... this. (nios2_regsets_info, nios2_usrregs_info, regs_info): New globals. (nios2_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-aarch64-low.c (tdesc_aarch64): Declare. (aarch64_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (aarch64_regsets): ... this. (aarch64_regsets_info, aarch64_usrregs_info, regs_info): New globals. (aarch64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare globals. (target_regsets): Rename to ... (tile_regsets): ... this. (tile_regsets_info, tile_usrregs_info, regs_info): New globals. (tile_regs_info): New function. (tile_arch_setup): Set the current process'es tdesc. (the_low_target): Adjust. (initialize_low_arch): New function. * spu-low.c (tdesc_spu): Declare. (spu_create_inferior, spu_attach): Set the new process'es tdesc. * win32-arm-low.c (tdesc_arm): Declare. (arm_arch_setup): New function. (the_low_target): Install arm_arch_setup instead of init_registers_arm. * win32-i386-low.c (tdesc_i386, tdesc_amd64): Declare. (init_windows_x86): Rename to ... (i386_arch_setup): ... this. Set `win32_tdesc'. (the_low_target): Adjust. * win32-low.c (win32_tdesc): New global. (child_add_thread): Don't create the thread cache here. (do_initial_child_stuff): Set the new process'es tdesc. * win32-low.h (struct target_desc): Forward declare. (win32_tdesc): Declare. * lynx-i386-low.c (tdesc_i386): Declare global. (lynx_i386_arch_setup): Set `lynx_tdesc'. * lynx-low.c (lynx_tdesc): New global. (lynx_add_process): Set the new process'es tdesc. * lynx-low.h (struct target_desc): Forward declare. (lynx_tdesc): Declare global. * lynx-ppc-low.c (tdesc_powerpc_32): Declare global. (lynx_ppc_arch_setup): Set `lynx_tdesc'. * nto-low.c (nto_tdesc): New global. (do_attach): Set the new process'es tdesc. * nto-low.h (struct target_desc): Forward declare. (nto_tdesc): Declare. * nto-x86-low.c (tdesc_i386): Declare. (nto_x86_arch_setup): Set `nto_tdesc'. gdb/ 2013-06-07 Pedro Alves <palves@redhat.com> * regformats/regdat.sh: Output #include tdesc.h. Make globals static. Output a global target description pointer. (init_registers_${name}): Adjust to initialize a target description structure.
2013-06-042013-06-04 Gary Benson <gbenson@redhat.com>Gary Benson1-3/+3
* server.c (handle_query): Add "augmented-libraries-svr4-read+" to qSupported response when appropriate. (handle_qxfer_libraries_svr4): Allow qXfer:libraries-svr4:read with nonzero-length annex. * linux-low.c (linux_qxfer_libraries_svr4): Parse and handle arguments supplied in annex.
2013-05-24[gdbserver] Don't assume vCont;r ADDR1,ADDR2 comes with a ptid attached.Pedro Alves1-8/+7
This bit: + p1 = strchr (p, ':'); + decode_address (&resume_info[i].step_range_end, p, p1 - p); should not expect the ':' to be there. An action without a ptid is valid: "If an action is specified with no thread-id, then it is applied to any threads that don't have a specific action specified" This is handled further below: if (p[0] == 0) { resume_info[i].thread = minus_one_ptid; default_action = resume_info[i]; /* Note: we don't increment i here, we'll overwrite this entry the next time through. */ } else if (p[0] == ':') A stub that doesn't support and report to gdb thread ids at all (like metal metal targets) only will always only see a single default action with no ptid. Use unpack_varlen_hex instead of decode_address. The former doesn't need to be told where the hex number ends, and it actually returns that info instead, which we can use for validation. Tested on x86_64 Fedora 17. gdb/gdbserver/ 2013-05-24 Pedro Alves <palves@redhat.com> * server.c (handle_v_cont) <vCont;r>: Use unpack_varlen_hex instead of strchr/decode_address. Error if the range isn't split with a ','. Don't assume there's be a ':' in the action.
2013-05-23range stepping: gdbserver (x86 GNU/Linux)Pedro Alves1-1/+23
This patch adds support for range stepping to GDBserver, teaching it about vCont;r. It'd be easy to enable this for all hardware single-step targets without needing the linux_target_ops hook, however, at least PPC needs special care, due to the fact that PPC atomic sequences can't be hardware single-stepped through, a thing which GDBserver doesn't know about. So this leaves the support limited to x86/x86_64. gdb/ 2013-05-23 Pedro Alves <palves@redhat.com> * NEWS: Mention GDBserver range stepping support. gdb/gdbserver/ 2013-05-23 Yao Qi <yao@codesourcery.com> Pedro Alves <palves@redhat.com> * linux-low.c (lwp_in_step_range): New function. (linux_wait_1): If the thread was range stepping and stopped outside the stepping range, report the stop to GDB. Otherwise, continue stepping. Add range stepping debug output. (linux_set_resume_request): Copy the step range from the resume request to the lwp. (linux_supports_range_stepping): New. (linux_target_ops) <supports_range_stepping>: Set to linux_supports_range_stepping. * linux-low.h (struct linux_target_ops) <supports_range_stepping>: New field. (struct lwp_info) <step_range_start, step_range_end>: New fields. * linux-x86-low.c (x86_supports_range_stepping): New. (the_low_target) <supports_range_stepping>: Set to x86_supports_range_stepping. * server.c (handle_v_cont): Handle 'r' action. (handle_v_requests): Append ";r" if the target supports range stepping. * target.h (struct thread_resume) <step_range_start, step_range_end>: New fields. (struct target_ops) <supports_range_stepping>: New field. (target_supports_range_stepping): New macro.
2013-03-11Add the gdb remote target operations for branch tracing.Markus Metzger1-0/+161
We define the following packets: Qbtrace:bts enable branch tracing for the current thread returns "OK" or "Enn" Qbtrace:off disable branch tracing for the current thread returns "OK" or "Enn" qXfer:btrace:read read the full branch trace data for the current thread gdb/ * target.h (enum target_object): Add TARGET_OBJECT_BTRACE. * remote.c: Include btrace.h. (struct btrace_target_info): New struct. (remote_supports_btrace): New function. (send_Qbtrace): New function. (remote_enable_btrace): New function. (remote_disable_btrace): New function. (remote_teardown_btrace): New function. (remote_read_btrace): New function. (init_remote_ops): Add btrace ops. (enum <unnamed>): Add btrace packets. (struct protocol_feature remote_protocol_features[]): Add btrace packets. (_initialize_remote): Add packet configuration for branch tracing. gdbserver/ * target.h (struct target_ops): Add btrace ops. (target_supports_btrace): New macro. (target_enable_btrace): New macro. (target_disable_btrace): New macro. (target_read_btrace): New macro. * gdbthread.h (struct thread_info): Add btrace field. * server.c: Include btrace-common.h. (handle_btrace_general_set): New function. (handle_btrace_enable): New function. (handle_btrace_disable): New function. (handle_general_set): Call handle_btrace_general_set. (handle_qxfer_btrace): New function. (struct qxfer qxfer_packets[]): Add btrace entry. * inferiors.c (remove_thread): Disable btrace. * linux-low: Include linux-btrace.h. (linux_low_enable_btrace): New function. (linux_low_read_btrace): New function. (linux_target_ops): Add btrace ops. * configure.srv (i[34567]86-*-linux*): Add linux-btrace.o. Add srv_linux_btrace=yes. (x86_64-*-linux*): Add linux-btrace.o. Add srv_linux_btrace=yes. * configure.ac: Define HAVE_LINUX_BTRACE. * config.in: Regenerated. * configure: Regenerated.
2013-03-11Preserve a verbose error message of xfer functions if they return -3.Markus Metzger1-4/+12
gdbserver/ * server.c (handle_qxfer): Preserve error message if -3 is returned. (qxfer): Document the -3 return value.
2013-03-082012-03-08 Stan Shebs <stan@codesourcery.com>Hafiz Abid Qadeer1-0/+1
Hafiz Abid Qadeer <abidh@codesourcery.com> gdb/ * NEWS: Mention set and show trace-buffer-size commands. Mention new packet. * target.h (struct target_ops): New method to_set_trace_buffer_size. (target_set_trace_buffer_size): New macro. * target.c (update_current_target): Set up new method. * tracepoint.c (trace_buffer_size): New global. (start_tracing): Send it to the target. (set_trace_buffer_size): New function. (_initialize_tracepoint): Add new setshow for trace-buffer-size. * remote.c (remote_set_trace_buffer_size): New function. (_initialize_remote): Use it. (QTBuffer:size) New remote command. (PACKET_QTBuffer_size): New enum. (remote_protocol_features): Add an entry for PACKET_QTBuffer_size. gdb/gdbserver/ * tracepoint.c (trace_buffer_size): New global. (DEFAULT_TRACE_BUFFER_SIZE): New define. (init_trace_buffer): Change to one-argument function. Allocate trace buffer memory. (handle_tracepoint_general_set): Call cmd_bigqtbuffer_size to handle QTBuffer:size packet. (cmd_bigqtbuffer_size): New function. (initialize_tracepoint): Call init_trace_buffer with DEFAULT_TRACE_BUFFER_SIZE. * server.c (handle_query): Add QTBuffer:size in the supported packets. gdb/doc/ * gdb.texinfo (Starting and Stopping Trace Experiments): Document trace-buffer-size set and show commands. (Tracepoint Packets): Document QTBuffer:size. (General Query Packets): Document QTBuffer:size. gdb/testsuite/ * gdb.trace/trace-buffer-size.exp: New file. * gdb.trace/trace-buffer-size.c: New file.
2013-02-27gdb/gdbserver/Yao Qi1-1/+2
* server.c (process_point_options): Print debug message when debug_threads is true.
2013-02-19gdbserver:server.c - use unpack_varlen_hex to extract hex numbers.Pedro Alves1-5/+8
Addresses, as most numbers in the RSP are hex encoded, with variable length (that just means the width isn't specified, and there's no top cap. So they should be extracted with unpack_varlen_hex. A couple spots in server.c are using strto(u)l, which doesn't work on LLP64 targets. This patch fixes it. Tested on x86_64 Fedora 17. 2013-02-19 Pedro Alves <palves@redhat.com> Kai Tietz <ktietz@redhat.com> PR gdb/15161 * server.c (handle_query) <CRC check>: Use unpack_varlen_hex instead of strtoul to extract address from packet. (process_serial_event) <'z'>: Likewise.
2013-01-25gdb/gdbserverYao Qi1-0/+1
* event-loop.c: Include "queue.h". (gdb_event_p): New typedef. (struct gdb_event) <next_event>: Remove. (event_queue): Change to QUEUE(gdb_event_p). (async_queue_event): Remove. (gdb_event_xfree): New. (initialize_event_loop): New. (process_event): Use API from QUEUE. (wait_for_event): Likewise. * server.c (main): Call initialize_event_loop. * server.h (initialize_event_loop): Declare.
2013-01-01Update years in copyright notice for the GDB files.Joel Brobecker1-2/+1
Two modifications: 1. The addition of 2013 to the copyright year range for every file; 2. The use of a single year range, instead of potentially multiple year ranges, as approved by the FSF.
2013-01-01Update copyright year in gdb/gdbserver/gdbreplay version output.Joel Brobecker1-1/+1
gdb/ChangeLog: * top.c (print_gdb_version): Update copyright year. gdb/gdbserver/ChangeLog: * gdbreplay.c (gdbreplay_version): Update copyright year. * server.c (gdbserver_version): Likewise.
2012-12-15gdb/gdbserver/Yao Qi1-110/+54
2012-12-15 Yao Qi <yao@codesourcery.com> * Makefile.in (OBS): Add notif.o. * notif.c, notif.h: New. * server.c: Include "notif.h". (struct vstop_notif) <next>: Remove. <base>: New field. (queue_stop_reply): Update. (push_event, send_next_stop_reply): Remove. (discard_queued_stop_replies): Update. (notif_stop): New variable. (handle_v_stopped): Remove. (handle_v_requests): Don't call handle_v_stopped. Call handle_ack_notif instead. (queue_stop_reply_callback): Call notif_event_enque instead of queue_stop_reply. (handle_status): Don't call send_next_stop_reply, call notif_write_event instead. (kill_inferior_callback): Likewise. (detach_or_kill_inferior_callback): Likewise. (main): Call initialize_notif. (process_serial_event): Call QUEUE_is_empty. (handle_target_event): Call notif_push instead of push event. * server.h (push_event): Remove declaration.
2012-11-152012-11-15 Pierre Muller <muller@sourceware.org>Pierre Muller1-3/+1
ARI fixes: move gdb_wait and gdb_stat headers to common subdirectory. * gdb_stat.h: Delete. Moved to common directory. * common/gdb_stat.h: New file. * gdb_wait.h: Delete. Moved to common directory. * common/gdb_wait.h: New file. * Makefile.in (H_FILES_NO_SRC): Adapt to new header location. * contrib/ari/gdb_ari.sh (wait.h rule): Adapt to new gdb_wait.h location. (stat.h rule): Adapt to new gdb_stat.h location. * common/linux-osdata.c: Include "gdb_stat.h" header instead of <sys/stat.h> header. * common/linux-ptrace.c: Include "gdb_wait.h" header instead of <sys/wait.h> header. gdbserver ChangeLog entry: 2012-11-15 Pierre Muller <muller@sourceware.org> * configure.ac (AC_CHECK_HEADERS): Add wait.h header. * config.in: Regenerate. * configure: Regenerate. * linux-low.c: Use "gdb_stat.h" header instead of <sys/stat.h> header. Use "gdb_wait.h" header instead of <sys/wait.h> header. * lynx-low.c: Use "gdb_wait.h" header instead of <sys/wait.h> header. * remote-utils.c: Use "gdb_stat.h" header instead of <sys/stat.h> header. * server.c: Remove HAVE_WAIT_H conditional. Use "gdb_wait.h" header instead of <sys/wait.h> header. * spu-low.c: Use "gdb_wait.h" header instead of <sys/wait.h> header.
2012-11-09gdb/gdbserver:Yao Qi1-4/+2
2012-11-09 Yao Qi <yao@codesourcery.com> * spu-low.c (current_ptid): Move it to .. * gdbthread.h: ... here. New. * remote-utils.c (read_ptid): Use macro 'current_ptid'. * server.c (myresume, process_serial_event): Likewise. * thread-db.c (thread_db_find_new_threads): Likewise. * tracepoint.c (run_inferior_command): Likewise.
2012-10-01http://sourceware.org/ml/gdb-patches/2012-09/msg00568.htmlAndrew Burgess1-4/+5
gdb/ChangeLog * target.c (simple_search_memory): Include access length in warning message. gdb/gdbserver/ChangeLog * server.c (handle_search_memory_1): Include access length in warning message. gdb/testsuite/ChangeLog Test find command on unmapped memory. * gdb.base/find-unmapped.c: New file. * gdb.base/find-unmapped.exp: New file.
2012-07-312012-07-31 Pedro Alves <palves@redhat.com>Pedro Alves1-5/+3
* server.c (process_point_options): Only skip tokens if we find one that is unrecognized. Don't treat 'X' specially while skipping unrecognized tokens.
2012-07-27gdb/gdbserver/Yao Qi1-1/+1
* server.c (process_point_options): Stop at 'X' when parsing.
2012-07-02 Add target-side support for dynamic printf.Stan Shebs1-17/+36
* NEWS: Mention the additional style. * breakpoint.h (struct bp_target_info): New fields tcommands, persist. (struct bp_location): New field cmd_bytecode. * breakpoint.c: Include format.h. (disconnected_dprintf): New global. (parse_cmd_to_aexpr): New function. (build_target_command_list): New function. (insert_bp_location): Call it. (remove_breakpoints_pid): Skip dprintf breakpoints. (print_one_breakpoint_location): Ditto. (dprintf_style_agent): New global. (dprintf_style_enums): Add dprintf_style_agent. (update_dprintf_command_list): Add agent case. (agent_printf_command): New function. (_initialize_breakpoint): Add new commands. * common/ax.def (printf): New bytecode. * ax.h (ax_string): Declare. * ax-gdb.h (gen_printf): Declare. * ax-gdb.c: Include cli-utils.h, format.h. (gen_printf): New function. (maint_agent_print_command): New function. (_initialize_ax_gdb): Add maint agent-printf command. * ax-general.c (ax_string): New function. (ax_print): Add printf disassembly. * Makefile.in (SFILES): Add format.c (COMMON_OBS): Add format.o. * common/format.h: New file. * common/format.c: New file. * printcmd.c: Include format.h. (ui_printf): Call parse_format_string. * remote.c (remote_state): New field breakpoint_commands. (PACKET_BreakpointCommands): New enum. (remote_breakpoint_commands_feature): New function. (remote_protocol_features): Add new BreakpointCommands entry. (remote_can_run_breakpoint_commands): New function. (remote_add_target_side_commands): New function. (remote_insert_breakpoint): Call it. (remote_insert_hw_breakpoint): Ditto. (_initialize_remote): Add new packet configuration for target-side breakpoint commands. * target.h (struct target_ops): New field to_can_run_breakpoint_commands. (target_can_run_breakpoint_commands): New macro. * target.c (update_current_target): Handle to_can_run_breakpoint_commands. [gdbserver] * Makefile.in (WARN_CFLAGS_NO_FORMAT): Define. (ax.o): Add it to build rule. (ax-ipa.o): Ditto. (OBS): Add format.o. (IPA_OBS): Add format.o. * server.c (handle_query): Claim support for breakpoint commands. (process_point_options): Add command case. (process_serial_event): Leave running if there are printfs in effect. * mem-break.h (any_persistent_commands): Declare. (add_breakpoint_commands): Declare. (gdb_no_commands_at_breakpoint): Declare. (run_breakpoint_commands): Declare. * mem-break.c (struct point_command_list): New struct. (struct breakpoint): New field command_list. (any_persistent_commands): New function. (add_commands_to_breakpoint): New function. (add_breakpoint_commands): New function. (gdb_no_commands_at_breakpoint): New function. (run_breakpoint_commands): New function. * linux-low.c (linux_wait_1): Test for and run breakpoint commands locally. * ax.c: Include format.h. (ax_printf): New function. (gdb_eval_agent_expr): Add printf opcode. [doc] * gdb.texinfo (Dynamic Printf): Mention agent style and disconnected dprintf. (Maintenance Commands): Describe maint agent-printf. (General Query Packets): Mention BreakpointCommands feature. (Packets): Document commands extension to Z0 packet. * agentexpr.texi (Bytecode Descriptions): Document printf bytecode. [testsuite] * gdb.base/dprintf.exp: Add agent style tests.
2012-06-13gdb/gdbserver:Yao Qi1-2/+0
* server.c (start_inferior): Remove duplicated writes to fields 'last_resume_kind' and 'last_status' of 'current_inferior'.
2012-06-12gdb/gdbserver:Yao Qi1-2/+2
* linux-low.c (linux_set_resume_request): Simplify predicate. Add comment. * server.c (handle_v_cont): Extend comment.
2012-06-01gdb/gdbserver/Jan Kratochvil1-2/+2
Fix gcc -flto compilation warning. * server.c (main): Make variable multi_mode and attach volatile.
2012-05-24gdb/Pedro Alves1-12/+12
2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout. gdb/gdbserver/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout. include/gdb/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 * gdb/signals.def: Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout. sim/arm/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout. sim/avr/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout. sim/common/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout. sim/cr16/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout. sim/d10v/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout. sim/erc32/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout. sim/m32c/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout. sim/ppc/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout. sim/rl78/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout. sim/rx/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace TARGET_SIGNAL_ with GDB_SIGNAL_ throughout.
2012-05-24gdb/Pedro Alves1-7/+7
2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace target_signal with gdb_signal throughout. gdb/gdbserver/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace target_signal with gdb_signal throughout. include/gdb/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace target_signal with gdb_signal throughout. sim/common/ 2012-05-24 Pedro Alves <palves@redhat.com> PR gdb/7205 Replace target_signal with gdb_signal throughout.
2012-04-29gdb/gdbserver:Yao Qi1-0/+1
* server.h: Move some code to ... * gdbthread.h: ... here. New. * Makefile.in (inferiors.o, regcache.o): Depends on gdbthread.h (remote-utils.o, server.o, target.o tracepoint.o): Likewise. (nto-low.o, win32-low.o): Likewise. * inferiors.c, linux-low.h, nto-low.c: Include gdbthread.h. * regcache.c, remote-utils.c, server.c: Likewise. * target.c, tracepoint.c, win32-low.c: Likewise.
2012-04-19gdb/gdbserver/Yao Qi1-4/+1
* remote-utils.c (prepare_resume_reply): Replace with macro target_core_of_thread. * server.c (handle_qxfer_threads_proper): Likewise. * target.h (traget_core_of_thread): New macro.
2012-03-262012-03-26 Pedro Alves <palves@redhat.com>Pedro Alves1-4/+0
* server.c (handle_qxfer_libraries): Don't bail early if the_target->qxfer_libraries_svr4 is not NULL.
2012-03-192012-03-19 Pedro Alves <palves@redhat.com>Pedro Alves1-2/+22
Jan Kratochvil <jan.kratochvil@redhat.com> * server.c (cont_thread, general_thread): Add describing comments. (start_inferior): Clear `cont_thread'. (handle_v_cont): Don't set `cont_thread' if resuming all threads of a process.
2012-03-08Make breakpoint condition detection trace conditional on remote_debug.Joel Brobecker1-1/+2
gdb/gdbserver/ChangeLog: * server.c (process_point_options): If a conditional expression is found, only print a message if remote_debug is nonzero.
2012-03-072012-03-07 Pedro Alves <palves@redhat.com>Pedro Alves1-1/+32
gdb/doc/ * gdb.texinfo (General Query Packets): Document new QProgramSignals packet. * gdb.texinfo (Remote configuration): Mention "program-signals-packet". gdb/gdbserver/ * linux-low.c (get_detach_signal): New. (linux_detach_one_lwp): Get rid of a pending SIGSTOP with SIGCONT. Pass on pending signals to PTRACE_DETACH. Check the result of the ptrace call. * server.c (program_signals, program_signals_p): New. (handle_general_set): Handle QProgramSignals. * server.h (program_signals, program_signals_p): Declare. gdb/ * NEWS: Mention QProgramSignals. * inferior.h (update_signals_program_target): Declare. * infrun.c: (update_signals_program_target): New. (handle_command): Update the target of the new program signals array changes. * remote.c (PACKET_QProgramSignals): New enum. (last_program_signals_packet): New global. (remote_program_signals): New. (remote_start_remote): Update the target with the program signals list. (remote_protocol_features): Add entry for QPassSignals. (remote_open_1): Free anc clear last_program_signals_packet. (init_remote_ops): Install remote_program_signals. * target.c (update_current_target): Adjust. (target_program_signals): New. * target.h (struct target_ops) <to_program_signals>: New field. (target_program_signals): Declare.
2012-03-03gdb:Yao Qi1-0/+28
* target.h (struct target_ops) <to_use_agent>: New field. (struct target_ops) <to_can_use_agent>: New field. (target_use_agent, target_can_use_agent): New macro. * target.c (update_current_target): Update. * remote.c: New enum `PACKET_QAgent'. (remote_protocol_features): Add a new element. (remote_use_agent, remote_can_use_agent): New. (init_remote_ops): Initialize field `can_use_agent' with remote_can_use_agent. Intiailize field `use_agent' with remote_use_agent. * common/agent.c (use_agent): New global. * common/agent.h: Declare it. * tracepoint.c (info_static_tracepoint_markers_command): Add comment. * Makefile.in (SFILES): Add common/agent.c and agent.c. (COMMON_OBS): Add common/agent.o and agent.o (common-agent.o): New rule. * agent.c: New. gdb/doc: * gdb.texinfo (In-Process Agent): New node. Document new commands. (General Query Packets): Add packet `QAgent'. gdb/gdbserver: * linux-low.c (linux_supports_agent): New. (linux_target_ops): Initialize field `supports_agent' with linux_supports_agent. * target.h (struct target_ops) <supports_agent>: New. (target_supports_agent): New macro. * server.c (handle_general_set): Handle packet 'QAgent'. (handle_query): Send `QAgent+'. * Makefile.in (server.o): Depends on agent.h.
2012-02-242012-02-24 Luis Machado <lgustavo@codesourcery>Luis Machado1-1/+56
* server.c (handle_query): Advertise support for target-side breakpoint condition evaluation. (process_point_options): New function. (process_serial_event): When inserting a breakpoint, check for a target-side condition that should be evaluated. * mem-break.c: Include regcache.h and ax.h. (point_cond_list_t): New data structure. (breakpoint) <cond_list>: New field. (find_gdb_breakpoint_at): Make non-static. (delete_gdb_breakpoint_at): Clear any target-side conditions. (clear_gdb_breakpoint_conditions): New function. (add_condition_to_breakpoint): Likewise. (add_breakpoint_condition): Likewise. (gdb_condition_true_at_breakpoint): Likewise. (gdb_breakpoint_here): Return result directly instead of going through a local variable. * mem-break.h (find_gdb_breakpoint_at): New prototype. (clear_gdb_breakpoint_conditions): Likewise. (add_breakpoint_condition): Likewise. (gdb_condition_true_at_breakpoint): Likewise. * linux-low.c (linux_wait_1): Evaluate target-side breakpoint condition. (need_step_over_p): Take target-side breakpoint condition into consideration.
2012-02-11gdb/gdbserver/Yao Qi1-2/+2
* server.c: (handle_monitor_command): Add a new parameter `own_buf'. (handle_query): Update caller.
2012-01-232012-01-23 Pedro Alves <palves@redhat.com>Pedro Alves1-9/+18
* server.c (main): Avoid yet another case of infinite loop while detaching/killing after a longjmp.
2012-01-202012-01-20 Pedro Alves <palves@redhat.com>Ulrich Weigand1-2/+2
Ulrich Weigand <ulrich.weigand@linaro.org> ChangeLog: * remote.c (remote_multi_process_p): Only check for multi-process protocol feature, do not check for extended protocol. (remote_supports_multi_process): Check for extended protocol here. (set_general_process): Likewise. (extended_remote_kill): Likewise. (remote_pid_to_str): Likewise. (remote_query_supported): Always query multiprocess mode. gdbserver/ChangeLog: * server.c (handle_v_requests): Only support vAttach and vRun to start multiple processes when in extended protocol mode.
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