diff options
| author | Doug Evans <dje@google.com> | 2014-01-22 14:17:39 -0800 |
|---|---|---|
| committer | Doug Evans <dje@google.com> | 2014-01-22 14:17:39 -0800 |
| commit | 87ce2a04c53fa7bb4fff50a41e45c0b29af06dae (patch) | |
| tree | a4c1b772d0b6e7d24277a843efadf522400c1c5d /gdb | |
| parent | 96b961024c796c5a609fd4d6a772b060eb3b6197 (diff) | |
| download | gdb-87ce2a04c53fa7bb4fff50a41e45c0b29af06dae.zip gdb-87ce2a04c53fa7bb4fff50a41e45c0b29af06dae.tar.gz gdb-87ce2a04c53fa7bb4fff50a41e45c0b29af06dae.tar.bz2 | |
New gdbserver option --debug-format=timestamp.
* NEWS: Mention it.
gdbserver/
* configure.ac (AC_CHECK_FUNCS): Add test for gettimeofday.
* configure: Regenerate.
* config.in: Regenerate.
* Makefile.in (SFILES): Add debug.c.
(OBS): Add debug.o.
* debug.c: New file.
* debug.h: New file.
* linux-aarch64-low.c (*): Update all debugging printfs to use
debug_printf instead of fprintf.
* linux-arm-low.c (*): Ditto.
* linux-cris-low.c (*): Ditto.
* linux-crisv32-low.c (*): Ditto.
* linux-m32r-low.c (*): Ditto.
* linux-sparc-low.c (*): Ditto.
* linux-x86.c (*): Ditto.
* linux-low.c (*): Ditto.
(linux_wait_1): Add calls to debug_enter, debug_exit.
(linux_wait): Remove redundant debugging printf.
(stop_all_lwps): Add calls to debug_enter, debug_exit.
(linux_resume, unstop_all_lwps): Ditto.
* mem-break.c (*): Update all debugging printfs to use
debug_printf instead of fprintf.
* remote-utils.c (*): Ditto.
* thread-db.c (*): Ditto.
* server.c #include <ctype.h>, "gdb_vecs.h".
(debug_threads): Moved to debug.c.
(*): Update all debugging printfs to use debug_printf instead of
fprintf.
(start_inferior): Replace call to fflush with call to debug_flush.
(monitor_show_help): Mention set debug-format.
(parse_debug_format_options): New function.
(handle_monitor_command): Handle "monitor set debug-format".
(gdbserver_usage): Mention --debug-format.
(main): Parse --debug-format.
* server.h (debug_threads): Declaration moved to debug.h.
#include "debug.h".
* tracepoint.c (trace_debug_1) [!IN_PROCESS_AGENT]: Add version of
trace_debug_1 that uses debug_printf.
(tracepoint_look_up_symbols): Update all debugging printfs to use
debug_printf instead of fprintf.
doc/
* gdb.texinfo (Server): Mention --debug-format=all|none|timestamp.
(gdbserver man): Ditto.
testsuite/
* gdb.server/server-mon.exp: Add tests for "set debug-format".
Diffstat (limited to 'gdb')
27 files changed, 792 insertions, 381 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index ef14841..0198542 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2014-01-22 Doug Evans <dje@google.com> + + New gdbserver option --debug-format=timestamp. + * NEWS: Mention it. + 2014-01-22 Andreas Arnez <arnez@vnet.linux.ibm.com> * syscalls/s390x-linux.xml: New file. @@ -3,6 +3,14 @@ *** Changes since GDB 7.7 +* New features in the GDB remote stub, GDBserver + + ** New option --debug-format=option1[,option2,...] allows one to add + additional text to each output. At present only timestamps + are supported: --debug-format=timestamps. + Timestamps can also be turned on with the + "monitor set debug-format timestamps" command from GDB. + * The 'record instruction-history' command now starts counting instructions at one. This also affects the instruction ranges reported by the 'record function-call-history' command when given the /i modifier. diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index 74a2763..0ccad7e 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,3 +1,8 @@ +2014-01-22 Doug Evans <dje@google.com> + + * gdb.texinfo (Server): Mention --debug-format=all|none|timestamp. + (gdbserver man): Ditto. + 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * gdb.texinfo: Document limited reverse/replay support diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index e77ca2a..a990d2a 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -18507,6 +18507,7 @@ connections and even in the @kbd{target extended-remote} mode. The multiple instances of @code{gdbserver} running on the same host, since each instance closes its port after the first connection. +@anchor{Other Command-Line Arguments for gdbserver} @subsubsection Other Command-Line Arguments for @code{gdbserver} @cindex @option{--debug}, @code{gdbserver} option @@ -18517,6 +18518,23 @@ The @option{--remote-debug} option tells @code{gdbserver} to display remote protocol debug output. These options are intended for @code{gdbserver} development and for bug reports to the developers. +@cindex @option{--debug-format}, @code{gdbserver} option +The @option{--debug-format=option1[,option2,...]} option tells +@code{gdbserver} to include additional information in each output. +Possible options are: + +@table @code +@item none +Turn off all extra information in debugging output. +@item all +Turn on all extra information in debugging output. +@item timestamps +Include a timestamp in each line of debugging output. +@end table + +Options are processed in order. Thus, for example, if @option{none} +appears last then no additional information is added to debugging output. + @cindex @option{--wrapper}, @code{gdbserver} option The @option{--wrapper} option specifies a wrapper to launch programs for debugging. The option should be followed by the name of the @@ -18587,6 +18605,22 @@ Disable or enable general debugging messages. Disable or enable specific debugging messages associated with the remote protocol (@pxref{Remote Protocol}). +@item monitor set debug-format option1@r{[},option2,...@r{]} +Specify additional text to add to debugging messages. +Possible options are: + +@table @code +@item none +Turn off all extra information in debugging output. +@item all +Turn on all extra information in debugging output. +@item timestamps +Include a timestamp in each line of debugging output. +@end table + +Options are processed in order. Thus, for example, if @option{none} +appears last then no additional information is added to debugging output. + @item monitor set libthread-db-search-path [PATH] @cindex gdbserver, search path for @code{libthread_db} When this command is issued, @var{path} is a colon-separated list of @@ -44342,6 +44376,11 @@ Instruct @code{gdbserver} to display remote protocol debug output. This option is intended for @code{gdbserver} development and for bug reports to the developers. +@item --debug-format=option1@r{[},option2,...@r{]} +Instruct @code{gdbserver} to include extra information in each line +of debugging output. +@xref{Other Command-Line Arguments for gdbserver}. + @item --wrapper Specify a wrapper to launch programs for debugging. The option should be followed by the name of the diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog index 1deea57..e6b3255 100644 --- a/gdb/gdbserver/ChangeLog +++ b/gdb/gdbserver/ChangeLog @@ -1,3 +1,46 @@ +2014-01-22 Doug Evans <dje@google.com> + + * configure.ac (AC_CHECK_FUNCS): Add test for gettimeofday. + * configure: Regenerate. + * config.in: Regenerate. + * Makefile.in (SFILES): Add debug.c. + (OBS): Add debug.o. + * debug.c: New file. + * debug.h: New file. + * linux-aarch64-low.c (*): Update all debugging printfs to use + debug_printf instead of fprintf. + * linux-arm-low.c (*): Ditto. + * linux-cris-low.c (*): Ditto. + * linux-crisv32-low.c (*): Ditto. + * linux-m32r-low.c (*): Ditto. + * linux-sparc-low.c (*): Ditto. + * linux-x86.c (*): Ditto. + * linux-low.c (*): Ditto. + (linux_wait_1): Add calls to debug_enter, debug_exit. + (linux_wait): Remove redundant debugging printf. + (stop_all_lwps): Add calls to debug_enter, debug_exit. + (linux_resume, unstop_all_lwps): Ditto. + * mem-break.c (*): Update all debugging printfs to use + debug_printf instead of fprintf. + * remote-utils.c (*): Ditto. + * thread-db.c (*): Ditto. + * server.c #include <ctype.h>, "gdb_vecs.h". + (debug_threads): Moved to debug.c. + (*): Update all debugging printfs to use debug_printf instead of + fprintf. + (start_inferior): Replace call to fflush with call to debug_flush. + (monitor_show_help): Mention set debug-format. + (parse_debug_format_options): New function. + (handle_monitor_command): Handle "monitor set debug-format". + (gdbserver_usage): Mention --debug-format. + (main): Parse --debug-format. + * server.h (debug_threads): Declaration moved to debug.h. + #include "debug.h". + * tracepoint.c (trace_debug_1) [!IN_PROCESS_AGENT]: Add version of + trace_debug_1 that uses debug_printf. + (tracepoint_look_up_symbols): Update all debugging printfs to use + debug_printf instead of fprintf. + 2014-01-20 Baruch Siach <baruch@tkos.co.il> * linux-xtensa-low.c: Include asm/ptrace.h instead of diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in index e72ee6b..46324e6 100644 --- a/gdb/gdbserver/Makefile.in +++ b/gdb/gdbserver/Makefile.in @@ -141,7 +141,7 @@ SFILES= $(srcdir)/gdbreplay.c $(srcdir)/inferiors.c $(srcdir)/dll.c \ $(srcdir)/mem-break.c $(srcdir)/proc-service.c \ $(srcdir)/proc-service.list $(srcdir)/regcache.c \ $(srcdir)/remote-utils.c $(srcdir)/server.c $(srcdir)/target.c \ - $(srcdir)/thread-db.c $(srcdir)/utils.c \ + $(srcdir)/thread-db.c $(srcdir)/utils.c $(srcdir)/debug.c \ $(srcdir)/linux-arm-low.c $(srcdir)/linux-bfin-low.c \ $(srcdir)/linux-cris-low.c $(srcdir)/linux-crisv32-low.c \ ${srcdir}/i386-low.c $(srcdir)/i387-fp.c \ @@ -173,7 +173,7 @@ SOURCES = $(SFILES) TAGFILES = $(SOURCES) ${HFILES} ${ALLPARAM} ${POSSLIBS} OBS = agent.o ax.o inferiors.o regcache.o remote-utils.o server.o signals.o \ - target.o waitstatus.o utils.o version.o vec.o gdb_vecs.o \ + target.o waitstatus.o utils.o debug.o version.o vec.o gdb_vecs.o \ mem-break.o hostio.o event-loop.o tracepoint.o xml-utils.o \ common-utils.o ptid.o buffer.o format.o filestuff.o dll.o notif.o \ tdesc.o $(XML_BUILTIN) $(DEPFILES) $(LIBOBJS) diff --git a/gdb/gdbserver/config.in b/gdb/gdbserver/config.in index e33cdea..1b9751f 100644 --- a/gdb/gdbserver/config.in +++ b/gdb/gdbserver/config.in @@ -66,6 +66,9 @@ /* Define to 1 if you have the `getrlimit' function. */ #undef HAVE_GETRLIMIT +/* Define to 1 if you have the `gettimeofday' function. */ +#undef HAVE_GETTIMEOFDAY + /* Define to 1 if you have the <inttypes.h> header file. */ #undef HAVE_INTTYPES_H diff --git a/gdb/gdbserver/configure b/gdb/gdbserver/configure index fac7fb3..6d8a6a7 100755 --- a/gdb/gdbserver/configure +++ b/gdb/gdbserver/configure @@ -4728,7 +4728,7 @@ fi done -for ac_func in pread pwrite pread64 readlink +for ac_func in gettimeofday pread pwrite pread64 readlink do : as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" diff --git a/gdb/gdbserver/configure.ac b/gdb/gdbserver/configure.ac index dc8131c..0dfa4a9 100644 --- a/gdb/gdbserver/configure.ac +++ b/gdb/gdbserver/configure.ac @@ -82,7 +82,7 @@ AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl errno.h fcntl.h signal.h sys/file.h malloc.h dnl sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl netinet/tcp.h arpa/inet.h) -AC_CHECK_FUNCS(pread pwrite pread64 readlink) +AC_CHECK_FUNCS(gettimeofday pread pwrite pread64 readlink) AC_REPLACE_FUNCS(vasprintf vsnprintf) GDB_AC_COMMON diff --git a/gdb/gdbserver/debug.c b/gdb/gdbserver/debug.c new file mode 100644 index 0000000..6f4d531 --- /dev/null +++ b/gdb/gdbserver/debug.c @@ -0,0 +1,98 @@ +/* Debugging routines for the remote server for GDB. + Copyright (C) 2014 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include "server.h" +#include <sys/time.h> + +/* Enable miscellaneous debugging output. The name is historical - it + was originally used to debug LinuxThreads support. */ +int debug_threads; + +/* Include timestamps in debugging output. */ +int debug_timestamp; + +/* Print a debugging message. + If the text begins a new line it is preceded by a timestamp, if the + system has gettimeofday. + We don't get fancy with newline checking, we just check whether the + previous call ended with "\n". */ + +void +debug_printf (const char *msg, ...) +{ + va_list args; +#if defined (HAVE_GETTIMEOFDAY) && !defined (IN_PROCESS_AGENT) + /* N.B. Not thread safe, and can't be used, as is, with IPA. */ + static int new_line = 1; + + if (debug_timestamp && new_line) + { + struct timeval tm; + + gettimeofday (&tm, NULL); + + /* If gettimeofday doesn't exist, and as a portability solution it has + been replaced with, e.g., time, then it doesn't make sense to print + the microseconds field. Is there a way to check for that? */ + fprintf (stderr, "%ld:%06ld ", (long) tm.tv_sec, (long) tm.tv_usec); + } +#endif + + va_start (args, msg); + vfprintf (stderr, msg, args); + va_end (args); + +#if defined (HAVE_GETTIMEOFDAY) && !defined (IN_PROCESS_AGENT) + if (*msg) + new_line = msg[strlen (msg) - 1] == '\n'; +#endif +} + +/* Flush debugging output. + This is called, for example, when starting an inferior to ensure all debug + output thus far appears before any inferior output. */ + +void +debug_flush (void) +{ + fflush (stderr); +} + +/* Notify the user that the code is entering FUNCTION_NAME. + FUNCTION_NAME is the name of the calling function, or NULL if unknown. + + This is intended to be called via the debug_enter macro. */ + +void +do_debug_enter (const char *function_name) +{ + if (function_name != NULL) + debug_printf (">>>> entering %s\n", function_name); +} + +/* Notify the user that the code is exiting FUNCTION_NAME. + FUNCTION_NAME is the name of the calling function, or NULL if unknown. + + This is intended to be called via the debug_exit macro. */ + +void +do_debug_exit (const char *function_name) +{ + if (function_name != NULL) + debug_printf ("<<<< exiting %s\n", function_name); +} diff --git a/gdb/gdbserver/debug.h b/gdb/gdbserver/debug.h new file mode 100644 index 0000000..0f056ca --- /dev/null +++ b/gdb/gdbserver/debug.h @@ -0,0 +1,55 @@ +/* Debugging routines for the remote server for GDB. + Copyright (C) 2014 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifndef DEBUG_H +#define DEBUG_H + +/* We declare debug format variables here, and debug_threads but no other + debug content variables (e.g., not remote_debug) because while this file + is not currently used by IPA it may be some day, and IPA may have its own + set of debug content variables. It's ok to declare debug_threads here + because it is misnamed - a better name is debug_basic or some such, + which can work for any program, gdbserver or IPA. If/when this file is + used with IPA it is recommended to fix debug_thread's name. */ +extern int debug_threads; +extern int debug_timestamp; + +void debug_printf (const char *msg, ...) ATTRIBUTE_PRINTF (1, 2); +void debug_flush (void); +void do_debug_enter (const char *function_name); +void do_debug_exit (const char *function_name); + +/* These macros are for use in major functions that produce a lot of + debugging output. They help identify in the mass of debugging output + when these functions enter and exit. debug_enter is intended to be + called at the start of a function, before any other debugging output. + debug_exit is intended to be called at the end of the same function, + after all debugging output. */ +#ifdef FUNCTION_NAME +#define debug_enter() \ + do { do_debug_enter (FUNCTION_NAME); } while (0) +#define debug_exit() \ + do { do_debug_exit (FUNCTION_NAME); } while (0) +#else +#define debug_enter() \ + do { } while (0) +#define debug_exit() \ + do { } while (0) +#endif + +#endif /* DEBUG_H */ diff --git a/gdb/gdbserver/linux-aarch64-low.c b/gdb/gdbserver/linux-aarch64-low.c index 1b0da6c..e7d3e4f 100644 --- a/gdb/gdbserver/linux-aarch64-low.c +++ b/gdb/gdbserver/linux-aarch64-low.c @@ -323,7 +323,7 @@ aarch64_get_pc (struct regcache *regcache) collect_register_by_name (regcache, "pc", &pc); if (debug_threads) - fprintf (stderr, "stop pc is %08lx\n", pc); + debug_printf ("stop pc is %08lx\n", pc); return pc; } diff --git a/gdb/gdbserver/linux-arm-low.c b/gdb/gdbserver/linux-arm-low.c index da5085c..fb6ff68 100644 --- a/gdb/gdbserver/linux-arm-low.c +++ b/gdb/gdbserver/linux-arm-low.c @@ -256,7 +256,7 @@ arm_get_pc (struct regcache *regcache) unsigned long pc; collect_register_by_name (regcache, "pc", &pc); if (debug_threads) - fprintf (stderr, "stop pc is %08lx\n", pc); + debug_printf ("stop pc is %08lx\n", pc); return pc; } diff --git a/gdb/gdbserver/linux-cris-low.c b/gdb/gdbserver/linux-cris-low.c index d229d43..2abd987 100644 --- a/gdb/gdbserver/linux-cris-low.c +++ b/gdb/gdbserver/linux-cris-low.c @@ -67,7 +67,7 @@ cris_get_pc (struct regcache *regcache, void) unsigned long pc; collect_register_by_name (regcache, "pc", &pc); if (debug_threads) - fprintf (stderr, "stop pc is %08lx\n", pc); + debug_printf ("stop pc is %08lx\n", pc); return pc; } diff --git a/gdb/gdbserver/linux-crisv32-low.c b/gdb/gdbserver/linux-crisv32-low.c index e4ebb62..a16a656 100644 --- a/gdb/gdbserver/linux-crisv32-low.c +++ b/gdb/gdbserver/linux-crisv32-low.c @@ -63,7 +63,7 @@ cris_get_pc (struct regcache *regcache) unsigned long pc; collect_register_by_name (regcache, "pc", &pc); if (debug_threads) - fprintf (stderr, "stop pc is %08lx\n", pc); + debug_printf ("stop pc is %08lx\n", pc); return pc; } diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c index 01d0e84..bac6134 100644 --- a/gdb/gdbserver/linux-low.c +++ b/gdb/gdbserver/linux-low.c @@ -475,7 +475,7 @@ get_pc (struct lwp_info *lwp) pc = (*the_low_target.get_pc) (regcache); if (debug_threads) - fprintf (stderr, "pc is 0x%lx\n", (long) pc); + debug_printf ("pc is 0x%lx\n", (long) pc); current_inferior = saved_inferior; return pc; @@ -520,7 +520,7 @@ get_stop_pc (struct lwp_info *lwp) stop_pc -= the_low_target.decr_pc_after_break; if (debug_threads) - fprintf (stderr, "stop pc is 0x%lx\n", (long) stop_pc); + debug_printf ("stop pc is 0x%lx\n", (long) stop_pc); return stop_pc; } @@ -692,8 +692,7 @@ linux_attach_lwp_1 (unsigned long lwpid, int initial) if (linux_proc_pid_is_stopped (lwpid)) { if (debug_threads) - fprintf (stderr, - "Attached to a stopped process\n"); + debug_printf ("Attached to a stopped process\n"); /* The process is definitely stopped. It is in a job control stop, unless the kernel predates the TASK_STOPPED / @@ -824,8 +823,8 @@ linux_attach (unsigned long pid) new_threads_found++; if (debug_threads) - fprintf (stderr, "\ -Found and attached to new lwp %ld\n", lwp); + debug_printf ("Found and attached to new lwp %ld\n", + lwp); } } @@ -898,18 +897,16 @@ linux_kill_one_lwp (struct lwp_info *lwp) errno = 0; kill (pid, SIGKILL); if (debug_threads) - fprintf (stderr, - "LKL: kill (SIGKILL) %s, 0, 0 (%s)\n", - target_pid_to_str (ptid_of (lwp)), - errno ? strerror (errno) : "OK"); + debug_printf ("LKL: kill (SIGKILL) %s, 0, 0 (%s)\n", + target_pid_to_str (ptid_of (lwp)), + errno ? strerror (errno) : "OK"); errno = 0; ptrace (PTRACE_KILL, pid, (PTRACE_TYPE_ARG3) 0, (PTRACE_TYPE_ARG4) 0); if (debug_threads) - fprintf (stderr, - "LKL: PTRACE_KILL %s, 0, 0 (%s)\n", - target_pid_to_str (ptid_of (lwp)), - errno ? strerror (errno) : "OK"); + debug_printf ("LKL: PTRACE_KILL %s, 0, 0 (%s)\n", + target_pid_to_str (ptid_of (lwp)), + errno ? strerror (errno) : "OK"); } /* Callback for `find_inferior'. Kills an lwp of a given process, @@ -934,8 +931,8 @@ kill_one_lwp_callback (struct inferior_list_entry *entry, void *args) if (lwpid_of (lwp) == pid) { if (debug_threads) - fprintf (stderr, "lkop: is last of process %s\n", - target_pid_to_str (entry->id)); + debug_printf ("lkop: is last of process %s\n", + target_pid_to_str (entry->id)); return 0; } @@ -975,14 +972,14 @@ linux_kill (int pid) if (lwp == NULL) { if (debug_threads) - fprintf (stderr, "lk_1: cannot find lwp %ld, for pid: %d\n", - lwpid_of (lwp), pid); + debug_printf ("lk_1: cannot find lwp %ld, for pid: %d\n", + lwpid_of (lwp), pid); } else { if (debug_threads) - fprintf (stderr, "lk_1: killing lwp %ld, for pid: %d\n", - lwpid_of (lwp), pid); + debug_printf ("lk_1: killing lwp %ld, for pid: %d\n", + lwpid_of (lwp), pid); do { @@ -1031,9 +1028,8 @@ get_detach_signal (struct thread_info *thread) if (!WIFSTOPPED (status)) { if (debug_threads) - fprintf (stderr, - "GPS: lwp %s hasn't stopped: no pending signal\n", - target_pid_to_str (ptid_of (lp))); + debug_printf ("GPS: lwp %s hasn't stopped: no pending signal\n", + target_pid_to_str (ptid_of (lp))); return 0; } @@ -1041,10 +1037,9 @@ get_detach_signal (struct thread_info *thread) if (WSTOPSIG (status) == SIGTRAP && status >> 16 != 0) { if (debug_threads) - fprintf (stderr, - "GPS: lwp %s had stopped with extended " - "status: no pending signal\n", - target_pid_to_str (ptid_of (lp))); + debug_printf ("GPS: lwp %s had stopped with extended " + "status: no pending signal\n", + target_pid_to_str (ptid_of (lp))); return 0; } @@ -1053,10 +1048,9 @@ get_detach_signal (struct thread_info *thread) if (program_signals_p && !program_signals[signo]) { if (debug_threads) - fprintf (stderr, - "GPS: lwp %s had signal %s, but it is in nopass state\n", - target_pid_to_str (ptid_of (lp)), - gdb_signal_to_string (signo)); + debug_printf ("GPS: lwp %s had signal %s, but it is in nopass state\n", + target_pid_to_str (ptid_of (lp)), + gdb_signal_to_string (signo)); return 0; } else if (!program_signals_p @@ -1066,20 +1060,19 @@ get_detach_signal (struct thread_info *thread) && (signo == GDB_SIGNAL_TRAP || signo == GDB_SIGNAL_INT)) { if (debug_threads) - fprintf (stderr, - "GPS: lwp %s had signal %s, " - "but we don't know if we should pass it. Default to not.\n", - target_pid_to_str (ptid_of (lp)), - gdb_signal_to_string (signo)); + debug_printf ("GPS: lwp %s had signal %s, " + "but we don't know if we should pass it. " + "Default to not.\n", + target_pid_to_str (ptid_of (lp)), + gdb_signal_to_string (signo)); return 0; } else { if (debug_threads) - fprintf (stderr, - "GPS: lwp %s has pending signal %s: delivering it.\n", - target_pid_to_str (ptid_of (lp)), - gdb_signal_to_string (signo)); + debug_printf ("GPS: lwp %s has pending signal %s: delivering it.\n", + target_pid_to_str (ptid_of (lp)), + gdb_signal_to_string (signo)); return WSTOPSIG (status); } @@ -1100,9 +1093,8 @@ linux_detach_one_lwp (struct inferior_list_entry *entry, void *args) if (lwp->stop_expected) { if (debug_threads) - fprintf (stderr, - "Sending SIGCONT to %s\n", - target_pid_to_str (ptid_of (lwp))); + debug_printf ("Sending SIGCONT to %s\n", + target_pid_to_str (ptid_of (lwp))); kill_lwp (lwpid_of (lwp), SIGCONT); lwp->stop_expected = 0; @@ -1276,7 +1268,7 @@ linux_wait_for_lwp (ptid_t ptid, int *wstatp, int options) struct lwp_info *child = NULL; if (debug_threads) - fprintf (stderr, "linux_wait_for_lwp: %s\n", target_pid_to_str (ptid)); + debug_printf ("linux_wait_for_lwp: %s\n", target_pid_to_str (ptid)); if (ptid_equal (ptid, minus_one_ptid)) to_wait_for = -1; /* any child */ @@ -1297,7 +1289,7 @@ retry: && (!WIFSTOPPED (*wstatp) || (WSTOPSIG (*wstatp) != 32 && WSTOPSIG (*wstatp) != 33))) - fprintf (stderr, "Got an event from %d (%x)\n", ret, *wstatp); + debug_printf ("Got an event from %d (%x)\n", ret, *wstatp); child = find_lwp_pid (pid_to_ptid (ret)); @@ -1404,7 +1396,7 @@ retry: current_inferior = get_lwp_thread (child); regcache = get_thread_regcache (current_inferior, 1); pc = (*the_low_target.get_pc) (regcache); - fprintf (stderr, "linux_wait_for_lwp: pc is 0x%lx\n", (long) pc); + debug_printf ("linux_wait_for_lwp: pc is 0x%lx\n", (long) pc); current_inferior = saved_inferior; } @@ -1450,7 +1442,7 @@ handle_tracepoints (struct lwp_info *lwp) if (tpoint_related_event) { if (debug_threads) - fprintf (stderr, "got a tracepoint event\n"); + debug_printf ("got a tracepoint event\n"); return 1; } @@ -1501,9 +1493,9 @@ maybe_move_out_of_jump_pad (struct lwp_info *lwp, int *wstat) int r; if (debug_threads) - fprintf (stderr, "\ -Checking whether LWP %ld needs to move out of the jump pad.\n", - lwpid_of (lwp)); + debug_printf ("Checking whether LWP %ld needs to move out of the " + "jump pad.\n", + lwpid_of (lwp)); r = linux_fast_tracepoint_collecting (lwp, &status); @@ -1527,9 +1519,9 @@ Checking whether LWP %ld needs to move out of the jump pad.\n", } if (debug_threads) - fprintf (stderr, "\ -Checking whether LWP %ld needs to move out of the jump pad...it does\n", - lwpid_of (lwp)); + debug_printf ("Checking whether LWP %ld needs to move out of " + "the jump pad...it does\n", + lwpid_of (lwp)); current_inferior = saved_inferior; return 1; @@ -1582,9 +1574,8 @@ Checking whether LWP %ld needs to move out of the jump pad...it does\n", if (lwp->exit_jump_pad_bkpt != NULL) { if (debug_threads) - fprintf (stderr, - "Cancelling fast exit-jump-pad: removing bkpt. " - "stopping all threads momentarily.\n"); + debug_printf ("Cancelling fast exit-jump-pad: removing bkpt. " + "stopping all threads momentarily.\n"); stop_all_lwps (1, lwp); cancel_breakpoints (); @@ -1600,9 +1591,9 @@ Checking whether LWP %ld needs to move out of the jump pad...it does\n", } if (debug_threads) - fprintf (stderr, "\ -Checking whether LWP %ld needs to move out of the jump pad...no\n", - lwpid_of (lwp)); + debug_printf ("Checking whether LWP %ld needs to move out of the " + "jump pad...no\n", + lwpid_of (lwp)); current_inferior = saved_inferior; return 0; @@ -1617,8 +1608,8 @@ enqueue_one_deferred_signal (struct lwp_info *lwp, int *wstat) struct pending_signals *p_sig; if (debug_threads) - fprintf (stderr, "\ -Deferring signal %d for LWP %ld.\n", WSTOPSIG (*wstat), lwpid_of (lwp)); + debug_printf ("Deferring signal %d for LWP %ld.\n", + WSTOPSIG (*wstat), lwpid_of (lwp)); if (debug_threads) { @@ -1627,11 +1618,10 @@ Deferring signal %d for LWP %ld.\n", WSTOPSIG (*wstat), lwpid_of (lwp)); for (sig = lwp->pending_signals_to_report; sig != NULL; sig = sig->prev) - fprintf (stderr, - " Already queued %d\n", - sig->signal); + debug_printf (" Already queued %d\n", + sig->signal); - fprintf (stderr, " (no more currently queued signals)\n"); + debug_printf (" (no more currently queued signals)\n"); } /* Don't enqueue non-RT signals if they are already in the deferred @@ -1648,11 +1638,10 @@ Deferring signal %d for LWP %ld.\n", WSTOPSIG (*wstat), lwpid_of (lwp)); if (sig->signal == WSTOPSIG (*wstat)) { if (debug_threads) - fprintf (stderr, - "Not requeuing already queued non-RT signal %d" - " for LWP %ld\n", - sig->signal, - lwpid_of (lwp)); + debug_printf ("Not requeuing already queued non-RT signal %d" + " for LWP %ld\n", + sig->signal, + lwpid_of (lwp)); return; } } @@ -1690,8 +1679,8 @@ dequeue_one_deferred_signal (struct lwp_info *lwp, int *wstat) *p_sig = NULL; if (debug_threads) - fprintf (stderr, "Reporting deferred signal %d for LWP %ld.\n", - WSTOPSIG (*wstat), lwpid_of (lwp)); + debug_printf ("Reporting deferred signal %d for LWP %ld.\n", + WSTOPSIG (*wstat), lwpid_of (lwp)); if (debug_threads) { @@ -1700,11 +1689,10 @@ dequeue_one_deferred_signal (struct lwp_info *lwp, int *wstat) for (sig = lwp->pending_signals_to_report; sig != NULL; sig = sig->prev) - fprintf (stderr, - " Still queued %d\n", - sig->signal); + debug_printf (" Still queued %d\n", + sig->signal); - fprintf (stderr, " (no more queued signals)\n"); + debug_printf (" (no more queued signals)\n"); } return 1; @@ -1734,9 +1722,8 @@ cancel_breakpoint (struct lwp_info *lwp) if ((*the_low_target.breakpoint_at) (lwp->stop_pc)) { if (debug_threads) - fprintf (stderr, - "CB: Push back breakpoint for %s\n", - target_pid_to_str (ptid_of (lwp))); + debug_printf ("CB: Push back breakpoint for %s\n", + target_pid_to_str (ptid_of (lwp))); /* Back up the PC if necessary. */ if (the_low_target.decr_pc_after_break) @@ -1752,10 +1739,9 @@ cancel_breakpoint (struct lwp_info *lwp) else { if (debug_threads) - fprintf (stderr, - "CB: No breakpoint found at %s for [%s]\n", - paddress (lwp->stop_pc), - target_pid_to_str (ptid_of (lwp))); + debug_printf ("CB: No breakpoint found at %s for [%s]\n", + paddress (lwp->stop_pc), + target_pid_to_str (ptid_of (lwp))); } current_inferior = saved_inferior; @@ -1788,7 +1774,7 @@ linux_wait_for_event (ptid_t ptid, int *wstat, int options) event_child = (struct lwp_info *) find_inferior (&all_lwps, status_pending_p_callback, &ptid); if (debug_threads && event_child) - fprintf (stderr, "Got a pending child %ld\n", lwpid_of (event_child)); + debug_printf ("Got a pending child %ld\n", lwpid_of (event_child)); } else { @@ -1816,8 +1802,8 @@ linux_wait_for_event (ptid_t ptid, int *wstat, int options) if (event_child != NULL) { if (debug_threads) - fprintf (stderr, "Got an event from pending child %ld (%04x)\n", - lwpid_of (event_child), event_child->status_pending); + debug_printf ("Got an event from pending child %ld (%04x)\n", + lwpid_of (event_child), event_child->status_pending); *wstat = event_child->status_pending; event_child->status_pending_p = 0; event_child->status_pending = 0; @@ -1847,7 +1833,7 @@ linux_wait_for_event (ptid_t ptid, int *wstat, int options) if ((options & WNOHANG) && event_child == NULL) { if (debug_threads) - fprintf (stderr, "WNOHANG set, no event found\n"); + debug_printf ("WNOHANG set, no event found\n"); return 0; } @@ -1873,14 +1859,14 @@ linux_wait_for_event (ptid_t ptid, int *wstat, int options) if (! WIFSTOPPED (*wstat)) { if (debug_threads) - fprintf (stderr, "LWP %ld exiting\n", lwpid_of (event_child)); + debug_printf ("LWP %ld exiting\n", lwpid_of (event_child)); /* If the last thread is exiting, just return. */ if (last_thread_of_process_p (current_inferior)) { if (debug_threads) - fprintf (stderr, "LWP %ld is last lwp of process\n", - lwpid_of (event_child)); + debug_printf ("LWP %ld is last lwp of process\n", + lwpid_of (event_child)); return lwpid_of (event_child); } @@ -1888,14 +1874,14 @@ linux_wait_for_event (ptid_t ptid, int *wstat, int options) { current_inferior = (struct thread_info *) all_threads.head; if (debug_threads) - fprintf (stderr, "Current inferior is now %ld\n", - lwpid_of (get_thread_lwp (current_inferior))); + debug_printf ("Current inferior is now %ld\n", + lwpid_of (get_thread_lwp (current_inferior))); } else { current_inferior = NULL; if (debug_threads) - fprintf (stderr, "Current inferior is now <NULL>\n"); + debug_printf ("Current inferior is now <NULL>\n"); } /* If we were waiting for this particular child to do something... @@ -1938,7 +1924,7 @@ linux_wait_for_event (ptid_t ptid, int *wstat, int options) int should_stop; if (debug_threads) - fprintf (stderr, "Expected stop.\n"); + debug_printf ("Expected stop.\n"); event_child->stop_expected = 0; should_stop = (current_inferior->last_resume_kind == resume_stop @@ -2082,9 +2068,8 @@ select_event_lwp (struct lwp_info **orig_lp) if (event_lp != NULL) { if (debug_threads) - fprintf (stderr, - "SEL: Select single-step %s\n", - target_pid_to_str (ptid_of (event_lp))); + debug_printf ("SEL: Select single-step %s\n", + target_pid_to_str (ptid_of (event_lp))); } else { @@ -2099,9 +2084,8 @@ select_event_lwp (struct lwp_info **orig_lp) ((num_events * (double) rand ()) / (RAND_MAX + 1.0)); if (debug_threads && num_events > 1) - fprintf (stderr, - "SEL: Found %d SIGTRAP events, selecting #%d\n", - num_events, random_selector); + debug_printf ("SEL: Found %d SIGTRAP events, selecting #%d\n", + num_events, random_selector); event_lp = (struct lwp_info *) find_inferior (&all_lwps, select_event_lwp_callback, @@ -2191,8 +2175,8 @@ linux_stabilize_threads (void) if (lwp_stuck != NULL) { if (debug_threads) - fprintf (stderr, "can't stabilize, LWP %ld is stuck in jump pad\n", - lwpid_of (lwp_stuck)); + debug_printf ("can't stabilize, LWP %ld is stuck in jump pad\n", + lwpid_of (lwp_stuck)); return; } @@ -2243,8 +2227,8 @@ linux_stabilize_threads (void) = (struct lwp_info *) find_inferior (&all_lwps, stuck_in_jump_pad_callback, NULL); if (lwp_stuck != NULL) - fprintf (stderr, "couldn't stabilize, LWP %ld got stuck in jump pad\n", - lwpid_of (lwp_stuck)); + debug_printf ("couldn't stabilize, LWP %ld got stuck in jump pad\n", + lwpid_of (lwp_stuck)); } } @@ -2265,6 +2249,12 @@ linux_wait_1 (ptid_t ptid, int trace_event; int in_step_range; + if (debug_threads) + { + debug_enter (); + debug_printf ("linux_wait_1: [%s]\n", target_pid_to_str (ptid)); + } + /* Translate generic target options into linux options. */ options = __WALL; if (target_options & TARGET_WNOHANG) @@ -2309,13 +2299,20 @@ retry: else { if (debug_threads) - fprintf (stderr, "step_over_bkpt set [%s], doing a blocking wait\n", - target_pid_to_str (step_over_bkpt)); + debug_printf ("step_over_bkpt set [%s], doing a blocking wait\n", + target_pid_to_str (step_over_bkpt)); pid = linux_wait_for_event (step_over_bkpt, &w, options & ~WNOHANG); } if (pid == 0) /* only if TARGET_WNOHANG */ - return null_ptid; + { + if (debug_threads) + { + debug_printf ("linux_wait_1 ret = null_ptid\n"); + debug_exit (); + } + return null_ptid; + } event_child = get_thread_lwp (current_inferior); @@ -2341,9 +2338,13 @@ retry: ourstatus->value.integer = WEXITSTATUS (w); if (debug_threads) - fprintf (stderr, - "\nChild exited with retcode = %x \n", - WEXITSTATUS (w)); + { + debug_printf ("linux_wait_1 ret = %s, exited with " + "retcode %d\n", + target_pid_to_str (ptid_of (event_child)), + WEXITSTATUS (w)); + debug_exit (); + } } else { @@ -2351,10 +2352,13 @@ retry: ourstatus->value.sig = gdb_signal_from_host (WTERMSIG (w)); if (debug_threads) - fprintf (stderr, - "\nChild terminated with signal = %x \n", - WTERMSIG (w)); - + { + debug_printf ("linux_wait_1 ret = %s, terminated with " + "signal %d\n", + target_pid_to_str (ptid_of (event_child)), + WTERMSIG (w)); + debug_exit (); + } } return ptid_of (event_child); @@ -2409,7 +2413,7 @@ retry: already handled it. So next time we resume (from this PC), we should step over it. */ if (debug_threads) - fprintf (stderr, "Hit a gdbserver breakpoint.\n"); + debug_printf ("Hit a gdbserver breakpoint.\n"); if (breakpoint_here (event_child->stop_pc)) event_child->need_step_over = 1; @@ -2435,10 +2439,9 @@ retry: && agent_loaded_p ()) { if (debug_threads) - fprintf (stderr, - "Got signal %d for LWP %ld. Check if we need " - "to defer or adjust it.\n", - WSTOPSIG (w), lwpid_of (event_child)); + debug_printf ("Got signal %d for LWP %ld. Check if we need " + "to defer or adjust it.\n", + WSTOPSIG (w), lwpid_of (event_child)); /* Allow debugging the jump pad itself. */ if (current_inferior->last_resume_kind != resume_step @@ -2447,9 +2450,8 @@ retry: enqueue_one_deferred_signal (event_child, &w); if (debug_threads) - fprintf (stderr, - "Signal %d for LWP %ld deferred (in jump pad)\n", - WSTOPSIG (w), lwpid_of (event_child)); + debug_printf ("Signal %d for LWP %ld deferred (in jump pad)\n", + WSTOPSIG (w), lwpid_of (event_child)); linux_resume_one_lwp (event_child, 0, 0, NULL); goto retry; @@ -2459,11 +2461,10 @@ retry: if (event_child->collecting_fast_tracepoint) { if (debug_threads) - fprintf (stderr, "\ -LWP %ld was trying to move out of the jump pad (%d). \ -Check if we're already there.\n", - lwpid_of (event_child), - event_child->collecting_fast_tracepoint); + debug_printf ("LWP %ld was trying to move out of the jump pad (%d). " + "Check if we're already there.\n", + lwpid_of (event_child), + event_child->collecting_fast_tracepoint); trace_event = 1; @@ -2476,9 +2477,8 @@ Check if we're already there.\n", if (event_child->exit_jump_pad_bkpt != NULL) { if (debug_threads) - fprintf (stderr, - "No longer need exit-jump-pad bkpt; removing it." - "stopping all threads momentarily.\n"); + debug_printf ("No longer need exit-jump-pad bkpt; removing it." + "stopping all threads momentarily.\n"); /* Other running threads could hit this breakpoint. We don't handle moribund locations like GDB does, @@ -2502,25 +2502,33 @@ Check if we're already there.\n", if (event_child->collecting_fast_tracepoint == 0) { if (debug_threads) - fprintf (stderr, - "fast tracepoint finished " - "collecting successfully.\n"); + debug_printf ("fast tracepoint finished " + "collecting successfully.\n"); /* We may have a deferred signal to report. */ if (dequeue_one_deferred_signal (event_child, &w)) { if (debug_threads) - fprintf (stderr, "dequeued one signal.\n"); + debug_printf ("dequeued one signal.\n"); } else { if (debug_threads) - fprintf (stderr, "no deferred signals.\n"); + debug_printf ("no deferred signals.\n"); if (stabilizing_threads) { ourstatus->kind = TARGET_WAITKIND_STOPPED; ourstatus->value.sig = GDB_SIGNAL_0; + + if (debug_threads) + { + debug_printf ("linux_wait_1 ret = %s, stopped " + "while stabilizing threads\n", + target_pid_to_str (ptid_of (event_child))); + debug_exit (); + } + return ptid_of (event_child); } } @@ -2554,8 +2562,8 @@ Check if we're already there.\n", siginfo_t info, *info_p; if (debug_threads) - fprintf (stderr, "Ignored signal %d for LWP %ld.\n", - WSTOPSIG (w), lwpid_of (event_child)); + debug_printf ("Ignored signal %d for LWP %ld.\n", + WSTOPSIG (w), lwpid_of (event_child)); if (ptrace (PTRACE_GETSIGINFO, lwpid_of (event_child), (PTRACE_TYPE_ARG3) 0, &info) == 0) @@ -2600,16 +2608,16 @@ Check if we're already there.\n", if (debug_threads) { if (bp_explains_trap) - fprintf (stderr, "Hit a gdbserver breakpoint.\n"); + debug_printf ("Hit a gdbserver breakpoint.\n"); if (step_over_finished) - fprintf (stderr, "Step-over finished.\n"); + debug_printf ("Step-over finished.\n"); if (trace_event) - fprintf (stderr, "Tracepoint event.\n"); + debug_printf ("Tracepoint event.\n"); if (lwp_in_step_range (event_child)) - fprintf (stderr, "Range stepping pc 0x%s [0x%s, 0x%s).\n", - paddress (event_child->stop_pc), - paddress (event_child->step_range_start), - paddress (event_child->step_range_end)); + debug_printf ("Range stepping pc 0x%s [0x%s, 0x%s).\n", + paddress (event_child->stop_pc), + paddress (event_child->step_range_start), + paddress (event_child->step_range_end)); } /* We're not reporting this breakpoint to GDB, so apply the @@ -2629,7 +2637,7 @@ Check if we're already there.\n", going to keep waiting, so use proceed, which handles stepping over the next breakpoint. */ if (debug_threads) - fprintf (stderr, "proceeding all threads.\n"); + debug_printf ("proceeding all threads.\n"); if (step_over_finished) unsuspend_all_lwps (event_child); @@ -2643,16 +2651,16 @@ Check if we're already there.\n", if (current_inferior->last_resume_kind == resume_step) { if (event_child->step_range_start == event_child->step_range_end) - fprintf (stderr, "GDB wanted to single-step, reporting event.\n"); + debug_printf ("GDB wanted to single-step, reporting event.\n"); else if (!lwp_in_step_range (event_child)) - fprintf (stderr, "Out of step range, reporting event.\n"); + debug_printf ("Out of step range, reporting event.\n"); } if (event_child->stopped_by_watchpoint) - fprintf (stderr, "Stopped by watchpoint.\n"); + debug_printf ("Stopped by watchpoint.\n"); if (gdb_breakpoint_here (event_child->stop_pc)) - fprintf (stderr, "Stopped by GDB breakpoint.\n"); + debug_printf ("Stopped by GDB breakpoint.\n"); if (debug_threads) - fprintf (stderr, "Hit a non-gdbserver trap event.\n"); + debug_printf ("Hit a non-gdbserver trap event.\n"); } /* Alright, we're going to report a stop. */ @@ -2730,10 +2738,12 @@ Check if we're already there.\n", gdb_assert (ptid_equal (step_over_bkpt, null_ptid)); if (debug_threads) - fprintf (stderr, "linux_wait ret = %s, %d, %d\n", - target_pid_to_str (ptid_of (event_child)), - ourstatus->kind, - ourstatus->value.sig); + { + debug_printf ("linux_wait_1 ret = %s, %d, %d\n", + target_pid_to_str (ptid_of (event_child)), + ourstatus->kind, ourstatus->value.sig); + debug_exit (); + } return ptid_of (event_child); } @@ -2772,9 +2782,6 @@ linux_wait (ptid_t ptid, { ptid_t event_ptid; - if (debug_threads) - fprintf (stderr, "linux_wait: [%s]\n", target_pid_to_str (ptid)); - /* Flush the async file first. */ if (target_is_async_p ()) async_file_flush (); @@ -2837,13 +2844,13 @@ send_sigstop (struct lwp_info *lwp) if (lwp->stop_expected) { if (debug_threads) - fprintf (stderr, "Have pending sigstop for lwp %d\n", pid); + debug_printf ("Have pending sigstop for lwp %d\n", pid); return; } if (debug_threads) - fprintf (stderr, "Sending sigstop to lwp %d\n", pid); + debug_printf ("Sending sigstop to lwp %d\n", pid); lwp->stop_expected = 1; kill_lwp (pid, SIGSTOP); @@ -2912,8 +2919,8 @@ wait_for_sigstop (struct inferior_list_entry *entry) if (lwp->stopped) { if (debug_threads) - fprintf (stderr, "wait_for_sigstop: LWP %ld already stopped\n", - lwpid_of (lwp)); + debug_printf ("wait_for_sigstop: LWP %ld already stopped\n", + lwpid_of (lwp)); return; } @@ -2926,7 +2933,7 @@ wait_for_sigstop (struct inferior_list_entry *entry) ptid = lwp->head.id; if (debug_threads) - fprintf (stderr, "wait_for_sigstop: pulling one event\n"); + debug_printf ("wait_for_sigstop: pulling one event\n"); pid = linux_wait_for_event (ptid, &wstat, __WALL); @@ -2936,14 +2943,14 @@ wait_for_sigstop (struct inferior_list_entry *entry) if (WIFSTOPPED (wstat)) { if (debug_threads) - fprintf (stderr, "LWP %ld stopped with signal %d\n", - lwpid_of (lwp), WSTOPSIG (wstat)); + debug_printf ("LWP %ld stopped with signal %d\n", + lwpid_of (lwp), WSTOPSIG (wstat)); if (WSTOPSIG (wstat) != SIGSTOP) { if (debug_threads) - fprintf (stderr, "LWP %ld stopped with non-sigstop status %06x\n", - lwpid_of (lwp), wstat); + debug_printf ("LWP %ld stopped with non-sigstop status %06x\n", + lwpid_of (lwp), wstat); lwp->status_pending_p = 1; lwp->status_pending = wstat; @@ -2952,7 +2959,7 @@ wait_for_sigstop (struct inferior_list_entry *entry) else { if (debug_threads) - fprintf (stderr, "Process %d exited while stopping LWPs\n", pid); + debug_printf ("Process %d exited while stopping LWPs\n", pid); lwp = find_lwp_pid (pid_to_ptid (pid)); if (lwp) @@ -2973,7 +2980,7 @@ wait_for_sigstop (struct inferior_list_entry *entry) else { if (debug_threads) - fprintf (stderr, "Previously current thread died.\n"); + debug_printf ("Previously current thread died.\n"); if (non_stop) { @@ -3032,9 +3039,8 @@ move_out_of_jump_pad_callback (struct inferior_list_entry *entry) && maybe_move_out_of_jump_pad (lwp, wstat)) { if (debug_threads) - fprintf (stderr, - "LWP %ld needs stabilizing (in jump pad)\n", - lwpid_of (lwp)); + debug_printf ("LWP %ld needs stabilizing (in jump pad)\n", + lwpid_of (lwp)); if (wstat) { @@ -3042,10 +3048,9 @@ move_out_of_jump_pad_callback (struct inferior_list_entry *entry) enqueue_one_deferred_signal (lwp, wstat); if (debug_threads) - fprintf (stderr, - "Signal %d for LWP %ld deferred " - "(in jump pad)\n", - WSTOPSIG (*wstat), lwpid_of (lwp)); + debug_printf ("Signal %d for LWP %ld deferred " + "(in jump pad)\n", + WSTOPSIG (*wstat), lwpid_of (lwp)); } linux_resume_one_lwp (lwp, 0, 0, NULL); @@ -3076,6 +3081,16 @@ stop_all_lwps (int suspend, struct lwp_info *except) /* Should not be called recursively. */ gdb_assert (stopping_threads == NOT_STOPPING_THREADS); + if (debug_threads) + { + debug_enter (); + debug_printf ("stop_all_lwps (%s, except=%s)\n", + suspend ? "stop-and-suspend" : "stop", + except != NULL + ? target_pid_to_str (ptid_of (except)) + : "none"); + } + stopping_threads = (suspend ? STOPPING_AND_SUSPENDING_THREADS : STOPPING_THREADS); @@ -3086,6 +3101,13 @@ stop_all_lwps (int suspend, struct lwp_info *except) find_inferior (&all_lwps, send_sigstop_callback, except); for_each_inferior (&all_lwps, wait_for_sigstop); stopping_threads = NOT_STOPPING_THREADS; + + if (debug_threads) + { + debug_printf ("stop_all_lwps done, setting stopping_threads " + "back to !stopping\n"); + debug_exit (); + } } /* Resume execution of the inferior process. @@ -3138,10 +3160,10 @@ linux_resume_one_lwp (struct lwp_info *lwp, if (lwp->status_pending_p) { if (debug_threads) - fprintf (stderr, "Not resuming lwp %ld (%s, signal %d, stop %s);" - " has pending status\n", - lwpid_of (lwp), step ? "step" : "continue", signal, - lwp->stop_expected ? "expected" : "not expected"); + debug_printf ("Not resuming lwp %ld (%s, signal %d, stop %s);" + " has pending status\n", + lwpid_of (lwp), step ? "step" : "continue", signal, + lwp->stop_expected ? "expected" : "not expected"); return; } @@ -3149,9 +3171,9 @@ linux_resume_one_lwp (struct lwp_info *lwp, current_inferior = get_lwp_thread (lwp); if (debug_threads) - fprintf (stderr, "Resuming lwp %ld (%s, signal %d, stop %s)\n", - lwpid_of (lwp), step ? "step" : "continue", signal, - lwp->stop_expected ? "expected" : "not expected"); + debug_printf ("Resuming lwp %ld (%s, signal %d, stop %s)\n", + lwpid_of (lwp), step ? "step" : "continue", signal, + lwp->stop_expected ? "expected" : "not expected"); /* This bit needs some thinking about. If we get a signal that we must report while a single-step reinsert is still pending, @@ -3166,8 +3188,8 @@ linux_resume_one_lwp (struct lwp_info *lwp, if (lwp->bp_reinsert != 0) { if (debug_threads) - fprintf (stderr, " pending reinsert at 0x%s\n", - paddress (lwp->bp_reinsert)); + debug_printf (" pending reinsert at 0x%s\n", + paddress (lwp->bp_reinsert)); if (can_hardware_single_step ()) { @@ -3190,9 +3212,9 @@ linux_resume_one_lwp (struct lwp_info *lwp, if (fast_tp_collecting == 1) { if (debug_threads) - fprintf (stderr, "\ -lwp %ld wants to get out of fast tracepoint jump pad (exit-jump-pad-bkpt)\n", - lwpid_of (lwp)); + debug_printf ("lwp %ld wants to get out of fast tracepoint jump pad" + " (exit-jump-pad-bkpt)\n", + lwpid_of (lwp)); /* Postpone any pending signal. It was enqueued above. */ signal = 0; @@ -3200,9 +3222,9 @@ lwp %ld wants to get out of fast tracepoint jump pad (exit-jump-pad-bkpt)\n", else if (fast_tp_collecting == 2) { if (debug_threads) - fprintf (stderr, "\ -lwp %ld wants to get out of fast tracepoint jump pad single-stepping\n", - lwpid_of (lwp)); + debug_printf ("lwp %ld wants to get out of fast tracepoint jump pad" + " single-stepping\n", + lwpid_of (lwp)); if (can_hardware_single_step ()) step = 1; @@ -3226,9 +3248,8 @@ lwp %ld wants to get out of fast tracepoint jump pad single-stepping\n", && can_hardware_single_step ()) { if (debug_threads) - fprintf (stderr, - "lwp %ld has a while-stepping action -> forcing step.\n", - lwpid_of (lwp)); + debug_printf ("lwp %ld has a while-stepping action -> forcing step.\n", + lwpid_of (lwp)); step = 1; } @@ -3236,7 +3257,7 @@ lwp %ld wants to get out of fast tracepoint jump pad single-stepping\n", { struct regcache *regcache = get_thread_regcache (current_inferior, 1); CORE_ADDR pc = (*the_low_target.get_pc) (regcache); - fprintf (stderr, " resuming from pc 0x%lx\n", (long) pc); + debug_printf (" resuming from pc 0x%lx\n", (long) pc); } /* If we have pending signals, consume one unless we are trying to @@ -3334,11 +3355,12 @@ linux_set_resume_request (struct inferior_list_entry *entry, void *arg) && thread->last_resume_kind == resume_stop) { if (debug_threads) - fprintf (stderr, "already %s LWP %ld at GDB's request\n", - thread->last_status.kind == TARGET_WAITKIND_STOPPED - ? "stopped" - : "stopping", - lwpid_of (lwp)); + debug_printf ("already %s LWP %ld at GDB's request\n", + (thread->last_status.kind + == TARGET_WAITKIND_STOPPED) + ? "stopped" + : "stopping", + lwpid_of (lwp)); continue; } @@ -3359,10 +3381,9 @@ linux_set_resume_request (struct inferior_list_entry *entry, void *arg) lwp->status_pending_p = 1; if (debug_threads) - fprintf (stderr, - "Dequeueing deferred signal %d for LWP %ld, " - "leaving status pending.\n", - WSTOPSIG (lwp->status_pending), lwpid_of (lwp)); + debug_printf ("Dequeueing deferred signal %d for LWP %ld, " + "leaving status pending.\n", + WSTOPSIG (lwp->status_pending), lwpid_of (lwp)); } return 0; @@ -3413,9 +3434,8 @@ need_step_over_p (struct inferior_list_entry *entry, void *dummy) if (!lwp->stopped) { if (debug_threads) - fprintf (stderr, - "Need step over [LWP %ld]? Ignoring, not stopped\n", - lwpid_of (lwp)); + debug_printf ("Need step over [LWP %ld]? Ignoring, not stopped\n", + lwpid_of (lwp)); return 0; } @@ -3424,9 +3444,9 @@ need_step_over_p (struct inferior_list_entry *entry, void *dummy) if (thread->last_resume_kind == resume_stop) { if (debug_threads) - fprintf (stderr, - "Need step over [LWP %ld]? Ignoring, should remain stopped\n", - lwpid_of (lwp)); + debug_printf ("Need step over [LWP %ld]? Ignoring, should remain" + " stopped\n", + lwpid_of (lwp)); return 0; } @@ -3435,25 +3455,23 @@ need_step_over_p (struct inferior_list_entry *entry, void *dummy) if (lwp->suspended) { if (debug_threads) - fprintf (stderr, - "Need step over [LWP %ld]? Ignoring, suspended\n", - lwpid_of (lwp)); + debug_printf ("Need step over [LWP %ld]? Ignoring, suspended\n", + lwpid_of (lwp)); return 0; } if (!lwp->need_step_over) { if (debug_threads) - fprintf (stderr, - "Need step over [LWP %ld]? No\n", lwpid_of (lwp)); + debug_printf ("Need step over [LWP %ld]? No\n", lwpid_of (lwp)); } if (lwp->status_pending_p) { if (debug_threads) - fprintf (stderr, - "Need step over [LWP %ld]? Ignoring, has pending status.\n", - lwpid_of (lwp)); + debug_printf ("Need step over [LWP %ld]? Ignoring, has pending" + " status.\n", + lwpid_of (lwp)); return 0; } @@ -3469,10 +3487,9 @@ need_step_over_p (struct inferior_list_entry *entry, void *dummy) if (pc != lwp->stop_pc) { if (debug_threads) - fprintf (stderr, - "Need step over [LWP %ld]? Cancelling, PC was changed. " - "Old stop_pc was 0x%s, PC is now 0x%s\n", - lwpid_of (lwp), paddress (lwp->stop_pc), paddress (pc)); + debug_printf ("Need step over [LWP %ld]? Cancelling, PC was changed. " + "Old stop_pc was 0x%s, PC is now 0x%s\n", + lwpid_of (lwp), paddress (lwp->stop_pc), paddress (pc)); lwp->need_step_over = 0; return 0; @@ -3492,10 +3509,9 @@ need_step_over_p (struct inferior_list_entry *entry, void *dummy) && gdb_no_commands_at_breakpoint (pc)) { if (debug_threads) - fprintf (stderr, - "Need step over [LWP %ld]? yes, but found" - " GDB breakpoint at 0x%s; skipping step over\n", - lwpid_of (lwp), paddress (pc)); + debug_printf ("Need step over [LWP %ld]? yes, but found" + " GDB breakpoint at 0x%s; skipping step over\n", + lwpid_of (lwp), paddress (pc)); current_inferior = saved_inferior; return 0; @@ -3503,10 +3519,9 @@ need_step_over_p (struct inferior_list_entry *entry, void *dummy) else { if (debug_threads) - fprintf (stderr, - "Need step over [LWP %ld]? yes, " - "found breakpoint at 0x%s\n", - lwpid_of (lwp), paddress (pc)); + debug_printf ("Need step over [LWP %ld]? yes, " + "found breakpoint at 0x%s\n", + lwpid_of (lwp), paddress (pc)); /* We've found an lwp that needs stepping over --- return 1 so that find_inferior stops looking. */ @@ -3521,9 +3536,9 @@ need_step_over_p (struct inferior_list_entry *entry, void *dummy) current_inferior = saved_inferior; if (debug_threads) - fprintf (stderr, - "Need step over [LWP %ld]? No, no breakpoint found at 0x%s\n", - lwpid_of (lwp), paddress (pc)); + debug_printf ("Need step over [LWP %ld]? No, no breakpoint found" + " at 0x%s\n", + lwpid_of (lwp), paddress (pc)); return 0; } @@ -3554,15 +3569,14 @@ start_step_over (struct lwp_info *lwp) int step; if (debug_threads) - fprintf (stderr, - "Starting step-over on LWP %ld. Stopping all threads\n", - lwpid_of (lwp)); + debug_printf ("Starting step-over on LWP %ld. Stopping all threads\n", + lwpid_of (lwp)); stop_all_lwps (1, lwp); gdb_assert (lwp->suspended == 0); if (debug_threads) - fprintf (stderr, "Done stopping all threads for step-over.\n"); + debug_printf ("Done stopping all threads for step-over.\n"); /* Note, we should always reach here with an already adjusted PC, either by GDB (if we're resuming due to GDB's request), or by our @@ -3607,7 +3621,7 @@ finish_step_over (struct lwp_info *lwp) if (lwp->bp_reinsert != 0) { if (debug_threads) - fprintf (stderr, "Finished step over.\n"); + debug_printf ("Finished step over.\n"); /* Reinsert any breakpoint at LWP->BP_REINSERT. Note that there may be no breakpoint to reinsert there by now. */ @@ -3662,12 +3676,12 @@ linux_resume_one_thread (struct inferior_list_entry *entry, void *arg) if (lwp->resume->kind == resume_stop) { if (debug_threads) - fprintf (stderr, "resume_stop request for LWP %ld\n", lwpid_of (lwp)); + debug_printf ("resume_stop request for LWP %ld\n", lwpid_of (lwp)); if (!lwp->stopped) { if (debug_threads) - fprintf (stderr, "stopping LWP %ld\n", lwpid_of (lwp)); + debug_printf ("stopping LWP %ld\n", lwpid_of (lwp)); /* Stop the thread, and wait for the event asynchronously, through the event loop. */ @@ -3676,8 +3690,8 @@ linux_resume_one_thread (struct inferior_list_entry *entry, void *arg) else { if (debug_threads) - fprintf (stderr, "already stopped LWP %ld\n", - lwpid_of (lwp)); + debug_printf ("already stopped LWP %ld\n", + lwpid_of (lwp)); /* The LWP may have been stopped in an internal event that was not meant to be notified back to GDB (e.g., gdbserver @@ -3719,7 +3733,7 @@ linux_resume_one_thread (struct inferior_list_entry *entry, void *arg) if (!leave_pending) { if (debug_threads) - fprintf (stderr, "resuming LWP %ld\n", lwpid_of (lwp)); + debug_printf ("resuming LWP %ld\n", lwpid_of (lwp)); step = (lwp->resume->kind == resume_step); linux_resume_one_lwp (lwp, step, lwp->resume->sig, NULL); @@ -3727,7 +3741,7 @@ linux_resume_one_thread (struct inferior_list_entry *entry, void *arg) else { if (debug_threads) - fprintf (stderr, "leaving LWP %ld stopped\n", lwpid_of (lwp)); + debug_printf ("leaving LWP %ld stopped\n", lwpid_of (lwp)); /* If we have a new signal, enqueue the signal. */ if (lwp->resume->sig != 0) @@ -3764,6 +3778,12 @@ linux_resume (struct thread_resume *resume_info, size_t n) int any_pending; int leave_all_stopped; + if (debug_threads) + { + debug_enter (); + debug_printf ("linux_resume:\n"); + } + find_inferior (&all_threads, linux_set_resume_request, &array); /* If there is a thread which would otherwise be resumed, which has @@ -3792,13 +3812,12 @@ linux_resume (struct thread_resume *resume_info, size_t n) if (debug_threads) { if (need_step_over != NULL) - fprintf (stderr, "Not resuming all, need step over\n"); + debug_printf ("Not resuming all, need step over\n"); else if (any_pending) - fprintf (stderr, - "Not resuming, all-stop and found " - "an LWP with pending status\n"); + debug_printf ("Not resuming, all-stop and found " + "an LWP with pending status\n"); else - fprintf (stderr, "Resuming, no pending status or step over needed\n"); + debug_printf ("Resuming, no pending status or step over needed\n"); } /* Even if we're leaving threads stopped, queue all signals we'd @@ -3807,6 +3826,12 @@ linux_resume (struct thread_resume *resume_info, size_t n) if (need_step_over) start_step_over (need_step_over); + + if (debug_threads) + { + debug_printf ("linux_resume done\n"); + debug_exit (); + } } /* This function is called once per thread. We check the thread's @@ -3829,13 +3854,12 @@ proceed_one_lwp (struct inferior_list_entry *entry, void *except) return 0; if (debug_threads) - fprintf (stderr, - "proceed_one_lwp: lwp %ld\n", lwpid_of (lwp)); + debug_printf ("proceed_one_lwp: lwp %ld\n", lwpid_of (lwp)); if (!lwp->stopped) { if (debug_threads) - fprintf (stderr, " LWP %ld already running\n", lwpid_of (lwp)); + debug_printf (" LWP %ld already running\n", lwpid_of (lwp)); return 0; } @@ -3845,16 +3869,16 @@ proceed_one_lwp (struct inferior_list_entry *entry, void *except) && thread->last_status.kind != TARGET_WAITKIND_IGNORE) { if (debug_threads) - fprintf (stderr, " client wants LWP to remain %ld stopped\n", - lwpid_of (lwp)); + debug_printf (" client wants LWP to remain %ld stopped\n", + lwpid_of (lwp)); return 0; } if (lwp->status_pending_p) { if (debug_threads) - fprintf (stderr, " LWP %ld has pending status, leaving stopped\n", - lwpid_of (lwp)); + debug_printf (" LWP %ld has pending status, leaving stopped\n", + lwpid_of (lwp)); return 0; } @@ -3863,7 +3887,7 @@ proceed_one_lwp (struct inferior_list_entry *entry, void *except) if (lwp->suspended) { if (debug_threads) - fprintf (stderr, " LWP %ld is suspended\n", lwpid_of (lwp)); + debug_printf (" LWP %ld is suspended\n", lwpid_of (lwp)); return 0; } @@ -3882,10 +3906,9 @@ proceed_one_lwp (struct inferior_list_entry *entry, void *except) pending, this is a no-op. */ if (debug_threads) - fprintf (stderr, - "Client wants LWP %ld to stop. " - "Making sure it has a SIGSTOP pending\n", - lwpid_of (lwp)); + debug_printf ("Client wants LWP %ld to stop. " + "Making sure it has a SIGSTOP pending\n", + lwpid_of (lwp)); send_sigstop (lwp); } @@ -3932,9 +3955,9 @@ proceed_all_lwps (void) if (need_step_over != NULL) { if (debug_threads) - fprintf (stderr, "proceed_all_lwps: found " - "thread %ld needing a step-over\n", - lwpid_of (need_step_over)); + debug_printf ("proceed_all_lwps: found " + "thread %ld needing a step-over\n", + lwpid_of (need_step_over)); start_step_over (need_step_over); return; @@ -3942,7 +3965,7 @@ proceed_all_lwps (void) } if (debug_threads) - fprintf (stderr, "Proceeding, no step-over needed\n"); + debug_printf ("Proceeding, no step-over needed\n"); find_inferior (&all_lwps, proceed_one_lwp, NULL); } @@ -3956,18 +3979,24 @@ unstop_all_lwps (int unsuspend, struct lwp_info *except) { if (debug_threads) { + debug_enter (); if (except) - fprintf (stderr, - "unstopping all lwps, except=(LWP %ld)\n", lwpid_of (except)); + debug_printf ("unstopping all lwps, except=(LWP %ld)\n", + lwpid_of (except)); else - fprintf (stderr, - "unstopping all lwps\n"); + debug_printf ("unstopping all lwps\n"); } if (unsuspend) find_inferior (&all_lwps, unsuspend_and_proceed_one_lwp, except); else find_inferior (&all_lwps, proceed_one_lwp, except); + + if (debug_threads) + { + debug_printf ("unstop_all_lwps done\n"); + debug_exit (); + } } @@ -4533,8 +4562,8 @@ linux_write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, int len) val = val & 0xffff; else if (len == 3) val = val & 0xffffff; - fprintf (stderr, "Writing %0*x to 0x%08lx\n", 2 * ((len < 4) ? len : 4), - val, (long)memaddr); + debug_printf ("Writing %0*x to 0x%08lx\n", 2 * ((len < 4) ? len : 4), + val, (long)memaddr); } /* Fill start and end extra bytes of buffer with existing memory data. */ @@ -4777,9 +4806,9 @@ linux_xfer_siginfo (const char *annex, unsigned char *readbuf, pid = lwpid_of (get_thread_lwp (current_inferior)); if (debug_threads) - fprintf (stderr, "%s siginfo for lwp %d.\n", - readbuf != NULL ? "Reading" : "Writing", - pid); + debug_printf ("%s siginfo for lwp %d.\n", + readbuf != NULL ? "Reading" : "Writing", + pid); if (offset >= sizeof (siginfo)) return -1; @@ -4851,8 +4880,8 @@ linux_async (int enable) int previous = (linux_event_pipe[0] != -1); if (debug_threads) - fprintf (stderr, "linux_async (%d), previous=%d\n", - enable, previous); + debug_printf ("linux_async (%d), previous=%d\n", + enable, previous); if (previous != enable) { diff --git a/gdb/gdbserver/linux-m32r-low.c b/gdb/gdbserver/linux-m32r-low.c index e208523..477e185 100644 --- a/gdb/gdbserver/linux-m32r-low.c +++ b/gdb/gdbserver/linux-m32r-low.c @@ -59,7 +59,7 @@ m32r_get_pc (struct regcache *regcache) unsigned long pc; collect_register_by_name (regcache, "pc", &pc); if (debug_threads) - fprintf (stderr, "stop pc is %08lx\n", pc); + debug_printf ("stop pc is %08lx\n", pc); return pc; } diff --git a/gdb/gdbserver/linux-sparc-low.c b/gdb/gdbserver/linux-sparc-low.c index fcffe05..75c97dd 100644 --- a/gdb/gdbserver/linux-sparc-low.c +++ b/gdb/gdbserver/linux-sparc-low.c @@ -231,7 +231,7 @@ sparc_get_pc (struct regcache *regcache) unsigned long pc; collect_register_by_name (regcache, "pc", &pc); if (debug_threads) - fprintf (stderr, "stop pc is %08lx\n", pc); + debug_printf ("stop pc is %08lx\n", pc); return pc; } diff --git a/gdb/gdbserver/linux-x86-low.c b/gdb/gdbserver/linux-x86-low.c index e1daa7d..1e590e8 100644 --- a/gdb/gdbserver/linux-x86-low.c +++ b/gdb/gdbserver/linux-x86-low.c @@ -2027,8 +2027,8 @@ add_insns (unsigned char *start, int len) CORE_ADDR buildaddr = current_insn_ptr; if (debug_threads) - fprintf (stderr, "Adding %d bytes of insn at %s\n", - len, paddress (buildaddr)); + debug_printf ("Adding %d bytes of insn at %s\n", + len, paddress (buildaddr)); append_insns (&buildaddr, len, start); current_insn_ptr = buildaddr; diff --git a/gdb/gdbserver/mem-break.c b/gdb/gdbserver/mem-break.c index fd706e9..b77ce10 100644 --- a/gdb/gdbserver/mem-break.c +++ b/gdb/gdbserver/mem-break.c @@ -197,10 +197,9 @@ set_raw_breakpoint_at (CORE_ADDR where) if (err != 0) { if (debug_threads) - fprintf (stderr, - "Failed to read shadow memory of" - " breakpoint at 0x%s (%s).\n", - paddress (where), strerror (err)); + debug_printf ("Failed to read shadow memory of" + " breakpoint at 0x%s (%s).\n", + paddress (where), strerror (err)); free (bp); return NULL; } @@ -211,9 +210,8 @@ set_raw_breakpoint_at (CORE_ADDR where) if (err != 0) { if (debug_threads) - fprintf (stderr, - "Failed to insert breakpoint at 0x%s (%s).\n", - paddress (where), strerror (err)); + debug_printf ("Failed to insert breakpoint at 0x%s (%s).\n", + paddress (where), strerror (err)); free (bp); return NULL; } @@ -334,10 +332,9 @@ delete_fast_tracepoint_jump (struct fast_tracepoint_jump *todel) *bp_link = prev_bp_link; if (debug_threads) - fprintf (stderr, - "Failed to uninsert fast tracepoint jump " - "at 0x%s (%s) while deleting it.\n", - paddress (bp->pc), strerror (ret)); + debug_printf ("Failed to uninsert fast tracepoint jump " + "at 0x%s (%s) while deleting it.\n", + paddress (bp->pc), strerror (ret)); return ret; } @@ -398,10 +395,9 @@ set_fast_tracepoint_jump (CORE_ADDR where, if (err != 0) { if (debug_threads) - fprintf (stderr, - "Failed to read shadow memory of" - " fast tracepoint at 0x%s (%s).\n", - paddress (where), strerror (err)); + debug_printf ("Failed to read shadow memory of" + " fast tracepoint at 0x%s (%s).\n", + paddress (where), strerror (err)); free (jp); return NULL; } @@ -424,9 +420,8 @@ set_fast_tracepoint_jump (CORE_ADDR where, if (err != 0) { if (debug_threads) - fprintf (stderr, - "Failed to insert fast tracepoint jump at 0x%s (%s).\n", - paddress (where), strerror (err)); + debug_printf ("Failed to insert fast tracepoint jump at 0x%s (%s).\n", + paddress (where), strerror (err)); /* Unlink it. */ proc->fast_tracepoint_jumps = jp->next; @@ -450,10 +445,9 @@ uninsert_fast_tracepoint_jumps_at (CORE_ADDR pc) /* This can happen when we remove all breakpoints while handling a step-over. */ if (debug_threads) - fprintf (stderr, - "Could not find fast tracepoint jump at 0x%s " - "in list (uninserting).\n", - paddress (pc)); + debug_printf ("Could not find fast tracepoint jump at 0x%s " + "in list (uninserting).\n", + paddress (pc)); return; } @@ -480,9 +474,9 @@ uninsert_fast_tracepoint_jumps_at (CORE_ADDR pc) jp->inserted = 1; if (debug_threads) - fprintf (stderr, - "Failed to uninsert fast tracepoint jump at 0x%s (%s).\n", - paddress (pc), strerror (err)); + debug_printf ("Failed to uninsert fast tracepoint jump at" + " 0x%s (%s).\n", + paddress (pc), strerror (err)); } } } @@ -500,10 +494,9 @@ reinsert_fast_tracepoint_jumps_at (CORE_ADDR where) /* This can happen when we remove breakpoints when a tracepoint hit causes a tracing stop, while handling a step-over. */ if (debug_threads) - fprintf (stderr, - "Could not find fast tracepoint jump at 0x%s " - "in list (reinserting).\n", - paddress (where)); + debug_printf ("Could not find fast tracepoint jump at 0x%s " + "in list (reinserting).\n", + paddress (where)); return; } @@ -528,9 +521,9 @@ reinsert_fast_tracepoint_jumps_at (CORE_ADDR where) jp->inserted = 0; if (debug_threads) - fprintf (stderr, - "Failed to reinsert fast tracepoint jump at 0x%s (%s).\n", - paddress (where), strerror (err)); + debug_printf ("Failed to reinsert fast tracepoint jump at" + " 0x%s (%s).\n", + paddress (where), strerror (err)); } } @@ -598,10 +591,9 @@ delete_raw_breakpoint (struct process_info *proc, struct raw_breakpoint *todel) *bp_link = prev_bp_link; if (debug_threads) - fprintf (stderr, - "Failed to uninsert raw breakpoint " - "at 0x%s (%s) while deleting it.\n", - paddress (bp->pc), strerror (ret)); + debug_printf ("Failed to uninsert raw breakpoint " + "at 0x%s (%s) while deleting it.\n", + paddress (bp->pc), strerror (ret)); return ret; } @@ -932,9 +924,9 @@ gdb_no_commands_at_breakpoint (CORE_ADDR where) return 0; if (debug_threads) - fprintf (stderr, "at 0x%s, bp command_list is 0x%s\n", - paddress (where), - phex_nz ((uintptr_t) bp->command_list, 0)); + debug_printf ("at 0x%s, bp command_list is 0x%s\n", + paddress (where), + phex_nz ((uintptr_t) bp->command_list, 0)); return (bp->command_list == NULL); } @@ -1034,9 +1026,8 @@ uninsert_raw_breakpoint (struct raw_breakpoint *bp) bp->inserted = 1; if (debug_threads) - fprintf (stderr, - "Failed to uninsert raw breakpoint at 0x%s (%s).\n", - paddress (bp->pc), strerror (err)); + debug_printf ("Failed to uninsert raw breakpoint at 0x%s (%s).\n", + paddress (bp->pc), strerror (err)); } } } @@ -1052,10 +1043,9 @@ uninsert_breakpoints_at (CORE_ADDR pc) /* This can happen when we remove all breakpoints while handling a step-over. */ if (debug_threads) - fprintf (stderr, - "Could not find breakpoint at 0x%s " - "in list (uninserting).\n", - paddress (pc)); + debug_printf ("Could not find breakpoint at 0x%s " + "in list (uninserting).\n", + paddress (pc)); return; } @@ -1087,9 +1077,8 @@ reinsert_raw_breakpoint (struct raw_breakpoint *bp) if (err == 0) bp->inserted = 1; else if (debug_threads) - fprintf (stderr, - "Failed to reinsert breakpoint at 0x%s (%s).\n", - paddress (bp->pc), strerror (err)); + debug_printf ("Failed to reinsert breakpoint at 0x%s (%s).\n", + paddress (bp->pc), strerror (err)); } void @@ -1103,10 +1092,9 @@ reinsert_breakpoints_at (CORE_ADDR pc) /* This can happen when we remove all breakpoints while handling a step-over. */ if (debug_threads) - fprintf (stderr, - "Could not find raw breakpoint at 0x%s " - "in list (reinserting).\n", - paddress (pc)); + debug_printf ("Could not find raw breakpoint at 0x%s " + "in list (reinserting).\n", + paddress (pc)); return; } diff --git a/gdb/gdbserver/remote-utils.c b/gdb/gdbserver/remote-utils.c index 75ace6e..3b88995 100644 --- a/gdb/gdbserver/remote-utils.c +++ b/gdb/gdbserver/remote-utils.c @@ -161,7 +161,7 @@ handle_accept_event (int err, gdb_client_data client_data) socklen_t tmp; if (debug_threads) - fprintf (stderr, "handling possible accept event\n"); + debug_printf ("handling possible accept event\n"); tmp = sizeof (sockaddr); remote_desc = accept (listen_desc, (struct sockaddr *) &sockaddr, &tmp); @@ -1315,8 +1315,8 @@ prepare_resume_reply (char *buf, ptid_t ptid, struct target_waitstatus *status) { if (debug_threads) - fprintf (stderr, "Writing resume reply for %s:%d\n", - target_pid_to_str (ptid), status->kind); + debug_printf ("Writing resume reply for %s:%d\n", + target_pid_to_str (ptid), status->kind); switch (status->kind) { diff --git a/gdb/gdbserver/server.c b/gdb/gdbserver/server.c index 28ea048..88354be 100644 --- a/gdb/gdbserver/server.c +++ b/gdb/gdbserver/server.c @@ -22,10 +22,12 @@ #include "notif.h" #include "tdesc.h" +#include <ctype.h> #include <unistd.h> #if HAVE_SIGNAL_H #include <signal.h> #endif +#include "gdb_vecs.h" #include "gdb_wait.h" #include "btrace-common.h" #include "filestuff.h" @@ -66,10 +68,6 @@ int disable_randomization = 1; static char **program_argv, **wrapper_argv; -/* Enable miscellaneous debugging output. The name is historical - it - was originally used to debug LinuxThreads support. */ -int debug_threads; - /* Enable debugging of h/w breakpoint/watchpoint support. */ int debug_hw_points; @@ -222,8 +220,8 @@ start_inferior (char **argv) { int i; for (i = 0; new_argv[i]; ++i) - fprintf (stderr, "new_argv[%d] = \"%s\"\n", i, new_argv[i]); - fflush (stderr); + debug_printf ("new_argv[%d] = \"%s\"\n", i, new_argv[i]); + debug_flush (); } #ifdef SIGTTOU @@ -694,6 +692,13 @@ monitor_show_help (void) monitor_output (" Enable h/w breakpoint/watchpoint debugging messages\n"); monitor_output (" set remote-debug <0|1>\n"); monitor_output (" Enable remote protocol debugging messages\n"); + monitor_output (" set debug-format option1[,option2,...]\n"); + monitor_output (" Add additional information to debugging messages\n"); + monitor_output (" Options: all, none"); +#ifdef HAVE_GETTIMEOFDAY + monitor_output (", timestamp"); +#endif + monitor_output ("\n"); monitor_output (" exit\n"); monitor_output (" Quit GDBserver\n"); } @@ -921,6 +926,80 @@ handle_search_memory (char *own_buf, int packet_len) return; \ } +/* Parse options to --debug-format= and "monitor set debug-format". + ARG is the text after "--debug-format=" or "monitor set debug-format". + IS_MONITOR is non-zero if we're invoked via "monitor set debug-format". + This triggers calls to monitor_output. + The result is NULL if all options were parsed ok, otherwise an error + message which the caller must free. + + N.B. These commands affect all debug format settings, they are not + cumulative. If a format is not specified, it is turned off. + However, we don't go to extra trouble with things like + "monitor set debug-format all,none,timestamp". + Instead we just parse them one at a time, in order. + + The syntax for "monitor set debug" we support here is not identical + to gdb's "set debug foo on|off" because we also use this function to + parse "--debug-format=foo,bar". */ + +static char * +parse_debug_format_options (const char *arg, int is_monitor) +{ + VEC (char_ptr) *options; + int ix; + char *option; + + /* First turn all debug format options off. */ + debug_timestamp = 0; + + /* First remove leading spaces, for "monitor set debug-format". */ + while (isspace (*arg)) + ++arg; + + options = delim_string_to_char_ptr_vec (arg, ','); + + for (ix = 0; VEC_iterate (char_ptr, options, ix, option); ++ix) + { + if (strcmp (option, "all") == 0) + { + debug_timestamp = 1; + if (is_monitor) + monitor_output ("All extra debug format options enabled.\n"); + } + else if (strcmp (option, "none") == 0) + { + debug_timestamp = 0; + if (is_monitor) + monitor_output ("All extra debug format options disabled.\n"); + } +#ifdef HAVE_GETTIMEOFDAY + else if (strcmp (option, "timestamp") == 0) + { + debug_timestamp = 1; + if (is_monitor) + monitor_output ("Timestamps will be added to debug output.\n"); + } +#endif + else if (*option == '\0') + { + /* An empty option, e.g., "--debug-format=foo,,bar", is ignored. */ + continue; + } + else + { + char *msg = xstrprintf ("Unknown debug-format argument: \"%s\"\n", + option); + + free_char_ptr_vec (options); + return msg; + } + } + + free_char_ptr_vec (options); + return NULL; +} + /* Handle monitor commands not handled by target-specific handlers. */ static void @@ -956,6 +1035,21 @@ handle_monitor_command (char *mon, char *own_buf) remote_debug = 0; monitor_output ("Protocol debug output disabled.\n"); } + else if (strncmp (mon, "set debug-format ", + sizeof ("set debug-format ") - 1) == 0) + { + char *error_msg + = parse_debug_format_options (mon + sizeof ("set debug-format ") - 1, + 1); + + if (error_msg != NULL) + { + monitor_output (error_msg); + monitor_show_help (); + write_enn (own_buf); + xfree (error_msg); + } + } else if (strcmp (mon, "help") == 0) monitor_show_help (); else if (strcmp (mon, "exit") == 0) @@ -2535,10 +2629,9 @@ queue_stop_reply_callback (struct inferior_list_entry *entry, void *arg) char *status_string = target_waitstatus_to_string (&thread->last_status); - fprintf (stderr, - "Reporting thread %s as already stopped with %s\n", - target_pid_to_str (entry->id), - status_string); + debug_printf ("Reporting thread %s as already stopped with %s\n", + target_pid_to_str (entry->id), + status_string); xfree (status_string); } @@ -2733,6 +2826,14 @@ gdbserver_usage (FILE *stream) "\n" "Options:\n" " --debug Enable general debugging output.\n" + " --debug-format=opt1[,opt2,...]\n" + " Specify extra content in debugging output.\n" + " Options:\n" + " all\n" + " none\n" +#ifdef HAVE_GETTIMEOFDAY + " timestamp\n" +#endif " --remote-debug Enable remote protocol debugging output.\n" " --version Display version information and exit.\n" " --wrapper WRAPPER -- Run WRAPPER to start new programs.\n" @@ -2908,6 +3009,20 @@ main (int argc, char *argv[]) } else if (strcmp (*next_arg, "--debug") == 0) debug_threads = 1; + else if (strncmp (*next_arg, + "--debug-format=", + sizeof ("--debug-format=") - 1) == 0) + { + char *error_msg + = parse_debug_format_options ((*next_arg) + + sizeof ("--debug-format=") - 1, 0); + + if (error_msg != NULL) + { + fprintf (stderr, "%s", error_msg); + exit (1); + } + } else if (strcmp (*next_arg, "--remote-debug") == 0) remote_debug = 1; else if (strcmp (*next_arg, "--disable-packet") == 0) @@ -3204,14 +3319,14 @@ process_point_options (CORE_ADDR point_addr, char **packet) { /* Conditional expression. */ if (debug_threads) - fprintf (stderr, "Found breakpoint condition.\n"); + debug_printf ("Found breakpoint condition.\n"); add_breakpoint_condition (point_addr, &dataptr); } else if (strncmp (dataptr, "cmds:", strlen ("cmds:")) == 0) { dataptr += strlen ("cmds:"); if (debug_threads) - fprintf (stderr, "Found breakpoint commands %s.\n", dataptr); + debug_printf ("Found breakpoint commands %s.\n", dataptr); persist = (*dataptr == '1'); dataptr += 2; add_breakpoint_commands (point_addr, &dataptr, persist); @@ -3316,7 +3431,7 @@ process_serial_event (void) if (!non_stop) { if (debug_threads) - fprintf (stderr, "Forcing non-stop mode\n"); + debug_printf ("Forcing non-stop mode\n"); non_stop = 1; start_non_stop (1); @@ -3709,7 +3824,7 @@ int handle_serial_event (int err, gdb_client_data client_data) { if (debug_threads) - fprintf (stderr, "handling possible serial event\n"); + debug_printf ("handling possible serial event\n"); /* Really handle it. */ if (process_serial_event () < 0) @@ -3728,7 +3843,7 @@ int handle_target_event (int err, gdb_client_data client_data) { if (debug_threads) - fprintf (stderr, "handling possible target event\n"); + debug_printf ("handling possible target event\n"); last_ptid = mywait (minus_one_ptid, &last_status, TARGET_WNOHANG, 1); @@ -3770,10 +3885,10 @@ handle_target_event (int err, gdb_client_data client_data) struct thread_resume resume_info; if (debug_threads) - fprintf (stderr, - "GDB not connected; forwarding event %d for [%s]\n", - (int) last_status.kind, - target_pid_to_str (last_ptid)); + debug_printf ("GDB not connected; forwarding event %d for" + " [%s]\n", + (int) last_status.kind, + target_pid_to_str (last_ptid)); resume_info.thread = last_ptid; resume_info.kind = resume_continue; @@ -3781,9 +3896,9 @@ handle_target_event (int err, gdb_client_data client_data) (*the_target->resume) (&resume_info, 1); } else if (debug_threads) - fprintf (stderr, "GDB not connected; ignoring event %d for [%s]\n", - (int) last_status.kind, - target_pid_to_str (last_ptid)); + debug_printf ("GDB not connected; ignoring event %d for [%s]\n", + (int) last_status.kind, + target_pid_to_str (last_ptid)); } else { diff --git a/gdb/gdbserver/server.h b/gdb/gdbserver/server.h index d82556a..6eb1a16 100644 --- a/gdb/gdbserver/server.h +++ b/gdb/gdbserver/server.h @@ -110,7 +110,6 @@ extern ptid_t cont_thread; extern ptid_t general_thread; extern int server_waiting; -extern int debug_threads; extern int debug_hw_points; extern int pass_signals[]; extern int program_signals[]; @@ -146,6 +145,7 @@ extern int handle_target_event (int err, gdb_client_data client_data); #include "common-utils.h" #include "utils.h" +#include "debug.h" #include "gdb_assert.h" diff --git a/gdb/gdbserver/thread-db.c b/gdb/gdbserver/thread-db.c index 8b8f6ce..df06b9d 100644 --- a/gdb/gdbserver/thread-db.c +++ b/gdb/gdbserver/thread-db.c @@ -194,7 +194,7 @@ thread_db_create_event (CORE_ADDR where) fatal ("unexpected thread_db->td_ta_event_getmsg_p == NULL"); if (debug_threads) - fprintf (stderr, "Thread creation event.\n"); + debug_printf ("Thread creation event.\n"); /* FIXME: This assumes we don't get another event. In the LinuxThreads implementation, this is safe, @@ -289,8 +289,8 @@ find_one_thread (ptid_t ptid) lwpid, thread_db_err_str (err)); if (debug_threads) - fprintf (stderr, "Found thread %ld (LWP %d)\n", - ti.ti_tid, ti.ti_lid); + debug_printf ("Found thread %ld (LWP %d)\n", + ti.ti_tid, ti.ti_lid); if (lwpid != ti.ti_lid) { @@ -326,8 +326,8 @@ attach_thread (const td_thrhandle_t *th_p, td_thrinfo_t *ti_p) struct lwp_info *lwp; if (debug_threads) - fprintf (stderr, "Attaching to thread %ld (LWP %d)\n", - ti_p->ti_tid, ti_p->ti_lid); + debug_printf ("Attaching to thread %ld (LWP %d)\n", + ti_p->ti_tid, ti_p->ti_lid); linux_attach_lwp (ti_p->ti_lid); lwp = find_lwp_pid (pid_to_ptid (ti_p->ti_lid)); if (lwp == NULL) @@ -432,8 +432,8 @@ thread_db_find_new_threads (void) TD_THR_LOWEST_PRIORITY, TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS); if (debug_threads) - fprintf (stderr, "Found %d threads in iteration %d.\n", - new_thread_count, iteration); + debug_printf ("Found %d threads in iteration %d.\n", + new_thread_count, iteration); if (new_thread_count != 0) { @@ -546,7 +546,7 @@ thread_db_load_search (void) if (err != TD_OK) { if (debug_threads) - fprintf (stderr, "td_ta_new(): %s\n", thread_db_err_str (err)); + debug_printf ("td_ta_new(): %s\n", thread_db_err_str (err)); free (tdb); proc->private->thread_db = NULL; return 0; @@ -595,7 +595,7 @@ try_thread_db_load_1 (void *handle) if ((a) == NULL) \ { \ if (debug_threads) \ - fprintf (stderr, "dlsym: %s\n", dlerror ()); \ + debug_printf ("dlsym: %s\n", dlerror ()); \ if (required) \ { \ free (tdb); \ @@ -613,7 +613,7 @@ try_thread_db_load_1 (void *handle) if (err != TD_OK) { if (debug_threads) - fprintf (stderr, "td_ta_new(): %s\n", thread_db_err_str (err)); + debug_printf ("td_ta_new(): %s\n", thread_db_err_str (err)); free (tdb); proc->private->thread_db = NULL; return 0; @@ -663,13 +663,13 @@ try_thread_db_load (const char *library) void *handle; if (debug_threads) - fprintf (stderr, "Trying host libthread_db library: %s.\n", - library); + debug_printf ("Trying host libthread_db library: %s.\n", + library); handle = dlopen (library, RTLD_NOW); if (handle == NULL) { if (debug_threads) - fprintf (stderr, "dlopen failed: %s.\n", dlerror ()); + debug_printf ("dlopen failed: %s.\n", dlerror ()); return 0; } @@ -786,7 +786,7 @@ thread_db_load_search (void) free_char_ptr_vec (dir_vec); if (debug_threads) - fprintf (stderr, "thread_db_load_search returning %d\n", rc); + debug_printf ("thread_db_load_search returning %d\n", rc); return rc; } diff --git a/gdb/gdbserver/tracepoint.c b/gdb/gdbserver/tracepoint.c index 13b3ff6..3706577 100644 --- a/gdb/gdbserver/tracepoint.c +++ b/gdb/gdbserver/tracepoint.c @@ -61,6 +61,8 @@ */ +#ifdef IN_PROCESS_AGENT + static void trace_vdebug (const char *, ...) ATTRIBUTE_PRINTF (1, 2); static void @@ -81,6 +83,19 @@ trace_vdebug (const char *fmt, ...) trace_vdebug ((fmt), ##args); \ } while (0) +#else + +#define trace_debug_1(level, fmt, args...) \ + do { \ + if (level <= debug_threads) \ + { \ + debug_printf ((fmt), ##args); \ + debug_printf ("\n"); \ + } \ + } while (0) + +#endif + #define trace_debug(FMT, args...) \ trace_debug_1 (1, FMT, ##args) @@ -338,7 +353,7 @@ tracepoint_look_up_symbols (void) if (look_up_one_symbol (symbol_list[i].name, addrp, 1) == 0) { if (debug_threads) - fprintf (stderr, "symbol `%s' not found\n", symbol_list[i].name); + debug_printf ("symbol `%s' not found\n", symbol_list[i].name); return; } } diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index e45fda3..1cbbfa0 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2014-01-22 Doug Evans <dje@google.com> + + * gdb.server/server-mon.exp: Add tests for "set debug-format". + 2014-01-22 Andreas Arnez <arnez@vnet.linux.ibm.com> * gdb.base/catch-syscall.exp: Activate test on s390*-linux. diff --git a/gdb/testsuite/gdb.server/server-mon.exp b/gdb/testsuite/gdb.server/server-mon.exp index 05f63e7..58b1df2 100644 --- a/gdb/testsuite/gdb.server/server-mon.exp +++ b/gdb/testsuite/gdb.server/server-mon.exp @@ -50,3 +50,7 @@ gdb_test "monitor set debug 1" "Debug output enabled\\." gdb_test "monitor set debug 0" "Debug output disabled\\." gdb_test "monitor set remote-debug 1" "Protocol debug output enabled\\." gdb_test "monitor set remote-debug 0" "Protocol debug output disabled\\." +gdb_test "monitor set debug-format all" \ + "All extra debug format options enabled\\." +gdb_test "monitor set debug-format none" \ + "All extra debug format options disabled\\." |