1999-04-16 03:35:26 +02:00
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/* General utility routines for the remote server for GDB.
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2007-01-09 18:59:20 +01:00
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Copyright (C) 1986, 1989, 1993, 1995, 1996, 1997, 1999, 2000, 2002, 2003,
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2010-01-01 08:32:07 +01:00
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2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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This file is part of GDB.
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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2007-08-23 20:08:50 +02:00
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the Free Software Foundation; either version 3 of the License, or
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1999-07-07 22:19:36 +02:00
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(at your option) any later version.
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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You should have received a copy of the GNU General Public License
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2007-08-23 20:08:50 +02:00
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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1999-04-16 03:35:26 +02:00
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#include "server.h"
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#include <stdio.h>
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#include <string.h>
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gdb/
* arm-wince-tdep.c: New.
* config/arm/wince.mt (DEPRECATED_TM_FILE): Use tm-arm.h.
(MT_CFLAGS): Delete.
(TM_CLIBS): Delete.
(TDEPFILES): Add arm-wince-tdep.o, corelow.o, solib.o,
solib-legacy.o, solib-svr4.o, and remove wince.o.
* configure.tgt (arm*-*-mingw32ce*): Add.
* signals/signals.c [HAVE_SIGNAL_H]: Check.
(do_target_signal_to_host): Silence 'not used' warning.
* config/arm/tm-wince.h: Remove.
gdb/gdbserver/
* gdbserver/configure.ac: Add errno checking.
(AC_CHECK_HEADERS): Add errno.h, fcntl.h, signal.h,
sys/file.h and malloc.h.
(AC_CHECK_DECLS): Add perror.
(srv_mingwce): Handle.
* gdbserver/configure.srv (i[34567]86-*-cygwin*): Add
win32-i386-low.o to srv_tgtobj.
(i[34567]86-*-mingw*): Likewise.
(arm*-*-mingw32ce*): Add case.
* gdbreplay.c [HAVE_SYS_FILE_H, HAVE_SIGNAL_H,
HAVE_FCNTL_H, HAVE_ERRNO_H, HAVE_MALLOC_H]: Check.
[__MINGW32CE__] (strerror): New function.
[__MINGW32CE__] (errno): Define to GetLastError.
[__MINGW32CE__] (COUNTOF): New macro.
(remote_open): Remove extra close call.
* mem-break.c (delete_breakpoint_at): New function.
* mem-break.h (delete_breakpoint_at): Declare.
* remote-utils.c [HAVE_SYS_FILE_H, HAVE_SIGNAL_H,
HAVE_FCNTL_H, HAVE_UNISTD_H, HAVE_ERRNO_H]: Check.
[USE_WIN32API] (read, write): Add char* casts.
* server.c [HAVE_UNISTD_H, HAVE_SIGNAL_H]: Check.
* server.h: Include wincecompat.h on Windows CE.
[HAVE_ERRNO_H]: Check.
(perror): Declare if not declared.
* utils.c: Add stdlib.h, errno.h and malloc.h includes.
(perror_with_name): Remove errno declaration.
* wincecompat.h: New.
* wincecompat.c: New.
* win32-low.h: New.
* win32-arm-low.c: New.
* win32-i386-low.c: New.
(win32-low.c): Include mem-break.h and win32-low.h, and winnt.h.
(OUTMSG2): Make it safe.
(_T): New macro.
(COUNTOF): New macro.
(NUM_REGS): Get it from the low target.
(CONTEXT_EXTENDED_REGISTERS, CONTEXT_FLOATING_POINT,
CONTEXT_DEBUG_REGISTERS): Add fallbacks to 0.
(thread_rec): Let low target handle debug registers.
(child_add_thread): Likewise.
(child_init_thread_list): Likewise.
(continue_one_thread): Likewise.
(regptr): New.
(do_child_fetch_inferior_registers): Move to ...
* win32-i386-low.c: ... here, and rename to ...
(do_fetch_inferior_registers): ... this.
* win32-low.c (child_fetch_inferior_registers):
Go through the low target.
(do_child_store_inferior_registers): Use regptr.
(strwinerror): New function.
(win32_create_inferior): Handle Windows CE.
Use strwinerror instead of strerror on Windows error
codes. Add program to the error output.
Don't close the main thread handle on Windows CE.
(win32_attach): Use coredll.dll on Windows CE.
(win32_kill): Close current process and current
thread handles.
(win32_detach): Use coredll.dll on Windows CE.
(win32_resume): Let low target handle debug registers, and
step request.
(handle_exception): Add/Remove initial breakpoint. Avoid
non-existant WSTOPSIG on Windows CE.
(win32_read_inferior_memory): Cast to remove warning.
(win32_arch_string): Go through the low target.
(initialize_low): Call set_breakpoint_data with the low
target's breakpoint.
* win32-low.c (dr, FLAG_TRACE_BIT, FCS_REGNUM,
FOP_REGNUM, mappings): Move to ...
* win32-i386-low.c: ... here.
* win32-low.c (win32_thread_info): Move to ...
* win32-low.h: ... here.
* Makefile.in (SFILES): Add win32-low.c, win32-i386-low.c,
win32-arm-low.c and wincecompat.c.
(all:): Add $EXEEXT.
(install-only:): Likewise.
(gdbserver:): Likewise.
(gdbreplay:): Likewise.
* config.in: Regenerate.
* configure: Regenerate.
2007-03-29 03:06:48 +02:00
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#include <stdlib.h>
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#if HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#if HAVE_MALLOC_H
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#include <malloc.h>
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#endif
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1999-04-16 03:35:26 +02:00
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/* Generally useful subroutines used throughout the program. */
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2008-12-14 21:51:04 +01:00
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static void malloc_failure (size_t size) ATTR_NORETURN;
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static void
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malloc_failure (size_t size)
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{
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fprintf (stderr, "gdbserver: ran out of memory while trying to allocate %lu bytes\n",
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(unsigned long) size);
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exit (1);
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}
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/* Allocate memory without fail.
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If malloc fails, this will print a message to stderr and exit. */
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void *
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xmalloc (size_t size)
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{
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void *newmem;
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if (size == 0)
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size = 1;
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newmem = malloc (size);
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if (!newmem)
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malloc_failure (size);
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return newmem;
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}
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gdb/gdbserver/
* server.h (LONGEST): New.
(struct thread_info) <while_stepping>: New field.
(unpack_varlen_hex, xrealloc, pulongest, plongest, phex_nz):
Declare.
(initialize_tracepoint, handle_tracepoint_general_set)
(handle_tracepoint_query, tracepoint_finished_step)
(tracepoint_was_hit, release_while_stepping_state_list):
(current_traceframe): Declare.
* server.c (handle_general_set): Handle tracepoint packets.
(read_memory): New.
(write_memory): New.
(handle_search_memory_1): Use read_memory.
(handle_query): Report support for conditional tracepoints, trace
state variables, and tracepoint sources. Handle tracepoint
queries.
(main): Initialize the tracepoints module.
(process_serial_event): Handle traceframe reads/writes.
* linux-low.c (handle_tracepoints): New.
(linux_wait_1): Call it.
(linux_resume_one_lwp): Handle while-stepping.
(linux_supports_tracepoints, linux_read_pc, linux_write_pc): New.
(linux_target_ops): Install them.
* linux-low.h (struct linux_target_ops) <supports_tracepoints>:
New field.
* linux-x86-low.c (x86_supports_tracepoints): New.
(the_low_target). Install it.
* mem-break.h (delete_breakpoint): Declare.
* mem-break.c (delete_breakpoint): Make external.
* target.h (struct target_ops): Add `supports_tracepoints',
`read_pc', and `write_pc' fields.
(target_supports_tracepoints): Define.
* utils.c (xrealloc, decimal2str, pulongest, plongest, thirty_two)
(phex_nz): New.
* regcache.h (struct regcache) <registers_owned>: New field.
(init_register_cache, regcache_cpy): Declare.
(regcache_read_pc, regcache_write_pc): Declare.
(register_cache_size): Declare.
(supply_regblock): Declare.
* regcache.c (init_register_cache): New.
(new_register_cache): Use it.
(regcache_cpy): New.
(register_cache_size): New.
(supply_regblock): New.
(regcache_read_pc, regcache_write_pc): New.
* tracepoint.c: New.
* Makefile.in (OBS): Add tracepoint.o.
(tracepoint.o): New rule.
gdb/
* regformats/regdat.sh: Include server.h. Don't include
regcache.h.
2010-04-09 05:40:00 +02:00
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/* Reallocate memory without fail. This works like xmalloc. */
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void *
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xrealloc (void *ptr, size_t size)
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{
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void *val;
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if (size == 0)
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size = 1;
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if (ptr != NULL)
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val = realloc (ptr, size); /* OK: realloc */
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else
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val = malloc (size); /* OK: malloc */
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if (val == NULL)
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malloc_failure (size);
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return val;
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}
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2008-12-14 21:51:04 +01:00
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/* Allocate memory without fail and set it to zero.
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If malloc fails, this will print a message to stderr and exit. */
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void *
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xcalloc (size_t nelem, size_t elsize)
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{
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void *newmem;
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if (nelem == 0 || elsize == 0)
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nelem = elsize = 1;
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newmem = calloc (nelem, elsize);
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if (!newmem)
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malloc_failure (nelem * elsize);
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return newmem;
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}
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/* Copy a string into a memory buffer.
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If malloc fails, this will print a message to stderr and exit. */
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char *
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xstrdup (const char *s)
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{
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char *ret = strdup (s);
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if (ret == NULL)
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malloc_failure (strlen (s) + 1);
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return ret;
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}
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2009-01-19 01:16:46 +01:00
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/* Free a standard argv vector. */
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void
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freeargv (char **vector)
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{
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char **scan;
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if (vector != NULL)
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{
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for (scan = vector; *scan != NULL; scan++)
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{
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free (*scan);
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}
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free (vector);
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}
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}
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1999-04-16 03:35:26 +02:00
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/* Print the system error message for errno, and also mention STRING
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as the file name for which the error was encountered.
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Then return to command level. */
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void
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2009-01-15 23:07:20 +01:00
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perror_with_name (const char *string)
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1999-04-16 03:35:26 +02:00
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{
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1999-11-02 05:44:47 +01:00
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const char *err;
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1999-04-16 03:35:26 +02:00
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char *combined;
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2003-06-29 06:01:39 +02:00
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err = strerror (errno);
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if (err == NULL)
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1999-04-16 03:35:26 +02:00
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err = "unknown error";
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combined = (char *) alloca (strlen (err) + strlen (string) + 3);
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strcpy (combined, string);
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strcat (combined, ": ");
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strcat (combined, err);
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error ("%s.", combined);
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}
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/* Print an error message and return to command level.
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STRING is the error message, used as a fprintf string,
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and ARG is passed as an argument to it. */
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2002-04-09 23:11:35 +02:00
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void
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1999-07-07 22:19:36 +02:00
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error (const char *string,...)
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1999-04-16 03:35:26 +02:00
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{
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extern jmp_buf toplevel;
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va_list args;
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va_start (args, string);
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fflush (stdout);
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vfprintf (stderr, string, args);
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fprintf (stderr, "\n");
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1999-07-07 22:19:36 +02:00
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longjmp (toplevel, 1);
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1999-04-16 03:35:26 +02:00
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}
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/* Print an error message and exit reporting failure.
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This is for a error that we cannot continue from.
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STRING and ARG are passed to fprintf. */
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/* VARARGS */
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2002-04-09 23:11:35 +02:00
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void
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2002-02-14 07:21:24 +01:00
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fatal (const char *string,...)
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1999-04-16 03:35:26 +02:00
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{
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va_list args;
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va_start (args, string);
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* inferiors.c (change_inferior_id): Delete.
(add_pid_to_list, pull_pid_from_list): New.
* linux-low.c (PTRACE_SETOPTIONS, PTRACE_GETEVENTMSG)
(PTRACE_O_TRACESYSGOOD, PTRACE_O_TRACEFORK, PTRACE_O_TRACEVFORK)
(PTRACE_O_TRACECLONE, PTRACE_O_TRACEEXEC, PTRACE_O_TRACEVFORKDONE)
(PTRACE_O_TRACEEXIT, PTRACE_EVENT_FORK, PTRACE_EVENT_VFORK)
(PTRACE_EVENT_CLONE, PTRACE_EVENT_EXEC, PTRACE_EVENT_VFORK_DONE)
(PTRACE_EVENT_EXIT, __WALL): Provide default definitions.
(stopped_pids, thread_db_active, must_set_ptrace_flags): New variables.
(using_threads): Always set to 1.
(handle_extended_wait): New.
(add_process): Do not set TID.
(linux_create_inferior): Set must_set_ptrace_flags.
(linux_attach_lwp): Remove TID argument. Do not check using_threads.
Use PTRACE_SETOPTIONS. Call new_thread_notify. Update all callers.
(linux_thread_alive): Rename TID argument to LWPID.
(linux_wait_for_process): Handle unknown processes. Do not use TID.
(linux_wait_for_event): Do not use TID or check using_threads. Update
call to dead_thread_notify. Call handle_extended_wait.
(linux_create_inferior): Use PTRACE_SETOPTIONS.
(send_sigstop): Delete sigstop_sent.
(wait_for_sigstop): Avoid TID.
(linux_supports_tracefork_flag, linux_tracefork_child, my_waitpid)
(linux_test_for_tracefork): New.
(linux_lookup_signals): Use thread_db_active and
linux_supports_tracefork_flag.
(initialize_low): Use thread_db_active and linux_test_for_tracefork.
* linux-low.h (get_process_thread): Avoid TID.
(struct process_ifo): Move thread_known and tid to the end. Remove
sigstop_sent.
(linux_attach_lwp, thread_db_init): Update prototypes.
* server.h (change_inferior_id): Delete prototype.
(add_pid_to_list, pull_pid_from_list): New prototypes.
* thread-db.c (thread_db_use_events): New.
(find_first_thread): Rename to...
(find_one_thread): ...this. Update callers and messages. Do not
call fatal. Check thread_db_use_events. Do not call
change_inferior_id or new_thread_notify.
(maybe_attach_thread): Update. Do not call new_thread_notify.
(thread_db_init): Set thread_db_use_events. Check use_events.
* utils.c (fatal, warning): Correct message prefix.
2007-10-23 22:05:03 +02:00
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fprintf (stderr, "gdbserver: ");
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1999-04-16 03:35:26 +02:00
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vfprintf (stderr, string, args);
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fprintf (stderr, "\n");
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va_end (args);
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exit (1);
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}
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2002-02-14 07:21:24 +01:00
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/* VARARGS */
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void
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warning (const char *string,...)
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{
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va_list args;
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va_start (args, string);
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* inferiors.c (change_inferior_id): Delete.
(add_pid_to_list, pull_pid_from_list): New.
* linux-low.c (PTRACE_SETOPTIONS, PTRACE_GETEVENTMSG)
(PTRACE_O_TRACESYSGOOD, PTRACE_O_TRACEFORK, PTRACE_O_TRACEVFORK)
(PTRACE_O_TRACECLONE, PTRACE_O_TRACEEXEC, PTRACE_O_TRACEVFORKDONE)
(PTRACE_O_TRACEEXIT, PTRACE_EVENT_FORK, PTRACE_EVENT_VFORK)
(PTRACE_EVENT_CLONE, PTRACE_EVENT_EXEC, PTRACE_EVENT_VFORK_DONE)
(PTRACE_EVENT_EXIT, __WALL): Provide default definitions.
(stopped_pids, thread_db_active, must_set_ptrace_flags): New variables.
(using_threads): Always set to 1.
(handle_extended_wait): New.
(add_process): Do not set TID.
(linux_create_inferior): Set must_set_ptrace_flags.
(linux_attach_lwp): Remove TID argument. Do not check using_threads.
Use PTRACE_SETOPTIONS. Call new_thread_notify. Update all callers.
(linux_thread_alive): Rename TID argument to LWPID.
(linux_wait_for_process): Handle unknown processes. Do not use TID.
(linux_wait_for_event): Do not use TID or check using_threads. Update
call to dead_thread_notify. Call handle_extended_wait.
(linux_create_inferior): Use PTRACE_SETOPTIONS.
(send_sigstop): Delete sigstop_sent.
(wait_for_sigstop): Avoid TID.
(linux_supports_tracefork_flag, linux_tracefork_child, my_waitpid)
(linux_test_for_tracefork): New.
(linux_lookup_signals): Use thread_db_active and
linux_supports_tracefork_flag.
(initialize_low): Use thread_db_active and linux_test_for_tracefork.
* linux-low.h (get_process_thread): Avoid TID.
(struct process_ifo): Move thread_known and tid to the end. Remove
sigstop_sent.
(linux_attach_lwp, thread_db_init): Update prototypes.
* server.h (change_inferior_id): Delete prototype.
(add_pid_to_list, pull_pid_from_list): New prototypes.
* thread-db.c (thread_db_use_events): New.
(find_first_thread): Rename to...
(find_one_thread): ...this. Update callers and messages. Do not
call fatal. Check thread_db_use_events. Do not call
change_inferior_id or new_thread_notify.
(maybe_attach_thread): Update. Do not call new_thread_notify.
(thread_db_init): Set thread_db_use_events. Check use_events.
* utils.c (fatal, warning): Correct message prefix.
2007-10-23 22:05:03 +02:00
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fprintf (stderr, "gdbserver: ");
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2002-02-14 07:21:24 +01:00
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|
|
vfprintf (stderr, string, args);
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fprintf (stderr, "\n");
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va_end (args);
|
|
|
|
}
|
Add h/w watchpoint support to x86-linux, win32-i386.
* Makefile.in (SFILES): Add i386-low.c
(i386_low_h): Define.
(i386-low.o): Add dependencies.
(linux-x86-low.o): Add i386-low.h dependency.
(win32-i386-low.o): Ditto.
* i386-low.c: New file.
* i386-low.h: New file.
* configure.srv (i[34567]86-*-cygwin*): Add i386-low.o to srv_tgtobj.
(i[34567]86-*-linux*, i[34567]86-*-mingw*, x86_64-*-linux*): Ditto.
* linux-low.c (linux_add_process): Initialize arch_private.
(linux_remove_process): Free arch_private.
(add_lwp): Initialize arch_private.
(delete_lwp): Free arch_private.
(linux_resume_one_lwp): Call the_low_target.prepare_to_resume if
provided.
* linux-low.h (process_info_private): New member arch_private.
(lwp_info): New member arch_private.
(linux_target_ops): New members new_process, new_thread,
prepare_to_resume.
(ptid_of): New macro.
* linux-x86-low.c: Include stddef.h, i386-low.h.
(arch_process_info): New struct.
(arch_lwp_info): New struct.
(x86_linux_dr_get, x86_linux_dr_set): New functions.
(i386_dr_low_set_addr, i386_dr_low_set_control): New functions.
(i386_dr_low_get_status): New function.
(x86_insert_point, x86_remove_point): New functions.
(x86_stopped_by_watchpoint): New function.
(x86_stopped_data_address): New function.
(x86_linux_new_process, x86_linux_new_thread): New functions.
(x86_linux_prepare_to_resume): New function.
(the_low_target): Add entries for insert_point, remove_point,
stopped_by_watchpoint, stopped_data_address, new_process, new_thread,
prepare_to_resume.
* server.c (debug_hw_points): New global.
(monitor_show_help): Document set debug-hw-points.
(handle_query): Process "set debug-hw-points".
* server.h (debug_hw_points): Declare.
(paddress): Declare.
* utils.c (NUMCELLS, CELLSIZE): New macros.
(get_sell, xsnprintf, paddress): New functions.
* win32-arm-low.c (the_low_target): Add entries for insert_point,
remove_point, stopped_by_watchpoint, stopped_data_address.
* win32-i386-low.c: Include i386-low.h.
(debug_reg_state): Replaces dr.
(i386_dr_low_set_addr, i386_dr_low_set_control): New functions.
(i386_dr_low_get_status): New function.
(i386_insert_point, i386_remove_point): New functions.
(i386_stopped_by_watchpoint): New function.
(i386_stopped_data_address): New function.
(i386_initial_stuff): Update.
(get_thread_context,set_thread_context,i386_thread_added): Update.
(the_low_target): Add entries for insert_point,
remove_point, stopped_by_watchpoint, stopped_data_address.
* win32-low.c (win32_insert_watchpoint): New function.
(win32_remove_watchpoint): New function.
(win32_stopped_by_watchpoint): New function.
(win32_stopped_data_address): New function.
(win32_target_ops): Add entries for insert_watchpoint,
remove_watchpoint, stopped_by_watchpoint, stopped_data_address.
* win32-low.h (win32_target_ops): New members insert_point,
remove_point, stopped_by_watchpoint, stopped_data_address.
2009-06-30 18:35:25 +02:00
|
|
|
|
2010-03-16 18:47:52 +01:00
|
|
|
/* Report a problem internal to GDBserver, and exit. */
|
|
|
|
|
|
|
|
void
|
|
|
|
internal_error (const char *file, int line, const char *fmt, ...)
|
|
|
|
{
|
|
|
|
va_list args;
|
|
|
|
va_start (args, fmt);
|
|
|
|
|
|
|
|
fprintf (stderr, "\
|
|
|
|
%s:%d: A problem internal to GDBserver has been detected.\n", file, line);
|
|
|
|
vfprintf (stderr, fmt, args);
|
|
|
|
fprintf (stderr, "\n");
|
|
|
|
va_end (args);
|
|
|
|
exit (1);
|
|
|
|
}
|
|
|
|
|
Add h/w watchpoint support to x86-linux, win32-i386.
* Makefile.in (SFILES): Add i386-low.c
(i386_low_h): Define.
(i386-low.o): Add dependencies.
(linux-x86-low.o): Add i386-low.h dependency.
(win32-i386-low.o): Ditto.
* i386-low.c: New file.
* i386-low.h: New file.
* configure.srv (i[34567]86-*-cygwin*): Add i386-low.o to srv_tgtobj.
(i[34567]86-*-linux*, i[34567]86-*-mingw*, x86_64-*-linux*): Ditto.
* linux-low.c (linux_add_process): Initialize arch_private.
(linux_remove_process): Free arch_private.
(add_lwp): Initialize arch_private.
(delete_lwp): Free arch_private.
(linux_resume_one_lwp): Call the_low_target.prepare_to_resume if
provided.
* linux-low.h (process_info_private): New member arch_private.
(lwp_info): New member arch_private.
(linux_target_ops): New members new_process, new_thread,
prepare_to_resume.
(ptid_of): New macro.
* linux-x86-low.c: Include stddef.h, i386-low.h.
(arch_process_info): New struct.
(arch_lwp_info): New struct.
(x86_linux_dr_get, x86_linux_dr_set): New functions.
(i386_dr_low_set_addr, i386_dr_low_set_control): New functions.
(i386_dr_low_get_status): New function.
(x86_insert_point, x86_remove_point): New functions.
(x86_stopped_by_watchpoint): New function.
(x86_stopped_data_address): New function.
(x86_linux_new_process, x86_linux_new_thread): New functions.
(x86_linux_prepare_to_resume): New function.
(the_low_target): Add entries for insert_point, remove_point,
stopped_by_watchpoint, stopped_data_address, new_process, new_thread,
prepare_to_resume.
* server.c (debug_hw_points): New global.
(monitor_show_help): Document set debug-hw-points.
(handle_query): Process "set debug-hw-points".
* server.h (debug_hw_points): Declare.
(paddress): Declare.
* utils.c (NUMCELLS, CELLSIZE): New macros.
(get_sell, xsnprintf, paddress): New functions.
* win32-arm-low.c (the_low_target): Add entries for insert_point,
remove_point, stopped_by_watchpoint, stopped_data_address.
* win32-i386-low.c: Include i386-low.h.
(debug_reg_state): Replaces dr.
(i386_dr_low_set_addr, i386_dr_low_set_control): New functions.
(i386_dr_low_get_status): New function.
(i386_insert_point, i386_remove_point): New functions.
(i386_stopped_by_watchpoint): New function.
(i386_stopped_data_address): New function.
(i386_initial_stuff): Update.
(get_thread_context,set_thread_context,i386_thread_added): Update.
(the_low_target): Add entries for insert_point,
remove_point, stopped_by_watchpoint, stopped_data_address.
* win32-low.c (win32_insert_watchpoint): New function.
(win32_remove_watchpoint): New function.
(win32_stopped_by_watchpoint): New function.
(win32_stopped_data_address): New function.
(win32_target_ops): Add entries for insert_watchpoint,
remove_watchpoint, stopped_by_watchpoint, stopped_data_address.
* win32-low.h (win32_target_ops): New members insert_point,
remove_point, stopped_by_watchpoint, stopped_data_address.
2009-06-30 18:35:25 +02:00
|
|
|
/* Temporary storage using circular buffer. */
|
|
|
|
#define NUMCELLS 4
|
|
|
|
#define CELLSIZE 50
|
|
|
|
|
|
|
|
/* Return the next entry in the circular buffer. */
|
|
|
|
|
|
|
|
static char *
|
|
|
|
get_cell (void)
|
|
|
|
{
|
|
|
|
static char buf[NUMCELLS][CELLSIZE];
|
|
|
|
static int cell = 0;
|
|
|
|
if (++cell >= NUMCELLS)
|
|
|
|
cell = 0;
|
|
|
|
return buf[cell];
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Stdarg wrapper around vsnprintf.
|
|
|
|
SIZE is the size of the buffer pointed to by STR. */
|
|
|
|
|
|
|
|
static int
|
|
|
|
xsnprintf (char *str, size_t size, const char *format, ...)
|
|
|
|
{
|
|
|
|
va_list args;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
va_start (args, format);
|
|
|
|
ret = vsnprintf (str, size, format, args);
|
|
|
|
va_end (args);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Convert a CORE_ADDR into a HEX string, like %lx.
|
|
|
|
The result is stored in a circular static buffer, NUMCELLS deep. */
|
|
|
|
|
|
|
|
char *
|
|
|
|
paddress (CORE_ADDR addr)
|
|
|
|
{
|
|
|
|
char *str = get_cell ();
|
|
|
|
xsnprintf (str, CELLSIZE, "%lx", (long) addr);
|
|
|
|
return str;
|
|
|
|
}
|
gdb/gdbserver/
* server.h (LONGEST): New.
(struct thread_info) <while_stepping>: New field.
(unpack_varlen_hex, xrealloc, pulongest, plongest, phex_nz):
Declare.
(initialize_tracepoint, handle_tracepoint_general_set)
(handle_tracepoint_query, tracepoint_finished_step)
(tracepoint_was_hit, release_while_stepping_state_list):
(current_traceframe): Declare.
* server.c (handle_general_set): Handle tracepoint packets.
(read_memory): New.
(write_memory): New.
(handle_search_memory_1): Use read_memory.
(handle_query): Report support for conditional tracepoints, trace
state variables, and tracepoint sources. Handle tracepoint
queries.
(main): Initialize the tracepoints module.
(process_serial_event): Handle traceframe reads/writes.
* linux-low.c (handle_tracepoints): New.
(linux_wait_1): Call it.
(linux_resume_one_lwp): Handle while-stepping.
(linux_supports_tracepoints, linux_read_pc, linux_write_pc): New.
(linux_target_ops): Install them.
* linux-low.h (struct linux_target_ops) <supports_tracepoints>:
New field.
* linux-x86-low.c (x86_supports_tracepoints): New.
(the_low_target). Install it.
* mem-break.h (delete_breakpoint): Declare.
* mem-break.c (delete_breakpoint): Make external.
* target.h (struct target_ops): Add `supports_tracepoints',
`read_pc', and `write_pc' fields.
(target_supports_tracepoints): Define.
* utils.c (xrealloc, decimal2str, pulongest, plongest, thirty_two)
(phex_nz): New.
* regcache.h (struct regcache) <registers_owned>: New field.
(init_register_cache, regcache_cpy): Declare.
(regcache_read_pc, regcache_write_pc): Declare.
(register_cache_size): Declare.
(supply_regblock): Declare.
* regcache.c (init_register_cache): New.
(new_register_cache): Use it.
(regcache_cpy): New.
(register_cache_size): New.
(supply_regblock): New.
(regcache_read_pc, regcache_write_pc): New.
* tracepoint.c: New.
* Makefile.in (OBS): Add tracepoint.o.
(tracepoint.o): New rule.
gdb/
* regformats/regdat.sh: Include server.h. Don't include
regcache.h.
2010-04-09 05:40:00 +02:00
|
|
|
|
|
|
|
static char *
|
|
|
|
decimal2str (char *sign, ULONGEST addr, int width)
|
|
|
|
{
|
|
|
|
/* Steal code from valprint.c:print_decimal(). Should this worry
|
|
|
|
about the real size of addr as the above does? */
|
|
|
|
unsigned long temp[3];
|
|
|
|
char *str = get_cell ();
|
|
|
|
|
|
|
|
int i = 0;
|
|
|
|
do
|
|
|
|
{
|
|
|
|
temp[i] = addr % (1000 * 1000 * 1000);
|
|
|
|
addr /= (1000 * 1000 * 1000);
|
|
|
|
i++;
|
|
|
|
width -= 9;
|
|
|
|
}
|
|
|
|
while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0])));
|
|
|
|
|
|
|
|
width = 9;
|
|
|
|
if (width < 0)
|
|
|
|
width = 0;
|
|
|
|
|
|
|
|
switch (i)
|
|
|
|
{
|
|
|
|
case 1:
|
|
|
|
xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]);
|
|
|
|
break;
|
|
|
|
case 2:
|
|
|
|
xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width,
|
|
|
|
temp[1], temp[0]);
|
|
|
|
break;
|
|
|
|
case 3:
|
|
|
|
xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width,
|
|
|
|
temp[2], temp[1], temp[0]);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"failed internal consistency check");
|
|
|
|
}
|
|
|
|
|
|
|
|
return str;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* %u for ULONGEST. The result is stored in a circular static buffer,
|
|
|
|
NUMCELLS deep. */
|
|
|
|
|
|
|
|
char *
|
|
|
|
pulongest (ULONGEST u)
|
|
|
|
{
|
|
|
|
return decimal2str ("", u, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* %d for LONGEST. The result is stored in a circular static buffer,
|
|
|
|
NUMCELLS deep. */
|
|
|
|
|
|
|
|
char *
|
|
|
|
plongest (LONGEST l)
|
|
|
|
{
|
|
|
|
if (l < 0)
|
|
|
|
return decimal2str ("-", -l, 0);
|
|
|
|
else
|
|
|
|
return decimal2str ("", l, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Eliminate warning from compiler on 32-bit systems. */
|
|
|
|
static int thirty_two = 32;
|
|
|
|
|
|
|
|
/* Convert a ULONGEST into a HEX string, like %lx. The result is
|
|
|
|
stored in a circular static buffer, NUMCELLS deep. */
|
|
|
|
|
|
|
|
char *
|
|
|
|
phex_nz (ULONGEST l, int sizeof_l)
|
|
|
|
{
|
|
|
|
char *str;
|
|
|
|
|
|
|
|
switch (sizeof_l)
|
|
|
|
{
|
|
|
|
case 8:
|
|
|
|
{
|
|
|
|
unsigned long high = (unsigned long) (l >> thirty_two);
|
|
|
|
str = get_cell ();
|
|
|
|
if (high == 0)
|
|
|
|
xsnprintf (str, CELLSIZE, "%lx",
|
|
|
|
(unsigned long) (l & 0xffffffff));
|
|
|
|
else
|
|
|
|
xsnprintf (str, CELLSIZE, "%lx%08lx", high,
|
|
|
|
(unsigned long) (l & 0xffffffff));
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case 4:
|
|
|
|
str = get_cell ();
|
|
|
|
xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l);
|
|
|
|
break;
|
|
|
|
case 2:
|
|
|
|
str = get_cell ();
|
|
|
|
xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff));
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
str = phex_nz (l, sizeof (l));
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return str;
|
|
|
|
}
|