/* Remote target communications for serial-line targets in custom GDB protocol
- Copyright 1988, 1991-2000 Free Software Foundation, Inc.
+
+ Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdb_string.h"
#include <ctype.h>
#include <fcntl.h>
-#include "frame.h"
#include "inferior.h"
#include "bfd.h"
#include "symfile.h"
#include "target.h"
-#include "gdb_wait.h"
/*#include "terminal.h" */
#include "gdbcmd.h"
#include "objfiles.h"
#include "gdb-stabs.h"
#include "gdbthread.h"
#include "remote.h"
-
-#include "dcache.h"
+#include "regcache.h"
+#include "value.h"
+#include "gdb_assert.h"
#include <ctype.h>
#include <sys/time.h>
#include <signal.h>
#include "serial.h"
+#include "gdbcore.h" /* for exec_bfd */
+
/* Prototypes for local functions */
static void cleanup_sigint_signal_handler (void *dummy);
static void initialize_sigint_signal_handler (void);
static int remote_xfer_memory (CORE_ADDR memaddr, char *myaddr,
int len, int should_write,
+ struct mem_attrib *attrib,
struct target_ops *target);
static void remote_prepare_to_store (void);
static void remote_fetch_registers (int regno);
-static void remote_resume (int pid, int step, enum target_signal siggnal);
-static void remote_async_resume (int pid, int step,
+static void remote_resume (ptid_t ptid, int step,
+ enum target_signal siggnal);
+static void remote_async_resume (ptid_t ptid, int step,
enum target_signal siggnal);
static int remote_start_remote (PTR);
static int readchar (int timeout);
-static int remote_wait (int pid, struct target_waitstatus *status);
-static int remote_async_wait (int pid, struct target_waitstatus *status);
+static ptid_t remote_wait (ptid_t ptid,
+ struct target_waitstatus *status);
+static ptid_t remote_async_wait (ptid_t ptid,
+ struct target_waitstatus *status);
static void remote_kill (void);
static void remote_async_kill (void);
static void set_thread (int, int);
-static int remote_thread_alive (int);
+static int remote_thread_alive (ptid_t);
static void get_offsets (void);
static int stub_unpack_int (char *buff, int fieldlength);
-static int remote_current_thread (int oldpid);
+static ptid_t remote_current_thread (ptid_t oldptid);
static void remote_find_new_threads (void);
static void record_currthread (int currthread);
-/* exported functions */
+static int fromhex (int a);
-extern int fromhex (int a);
+static int hex2bin (const char *hex, char *bin, int count);
+
+static int bin2hex (const char *bin, char *hex, int count);
static int putpkt_binary (char *buf, int cnt);
void _initialize_remote (void);
+/* Description of the remote protocol. Strictly speeking, when the
+ target is open()ed, remote.c should create a per-target description
+ of the remote protocol using that target's architecture.
+ Unfortunatly, the target stack doesn't include local state. For
+ the moment keep the information in the target's architecture
+ object. Sigh.. */
+
+struct packet_reg
+{
+ long offset; /* Offset into G packet. */
+ long regnum; /* GDB's internal register number. */
+ LONGEST pnum; /* Remote protocol register number. */
+ int in_g_packet; /* Always part of G packet. */
+ /* long size in bytes; == REGISTER_RAW_SIZE (regnum); at present. */
+ /* char *name; == REGISTER_NAME (regnum); at present. */
+};
+
+struct remote_state
+{
+ /* Description of the remote protocol registers. */
+ long sizeof_g_packet;
+
+ /* Description of the remote protocol registers indexed by REGNUM
+ (making an array of NUM_REGS + NUM_PSEUDO_REGS in size). */
+ struct packet_reg *regs;
+
+ /* This is the size (in chars) of the first response to the ``g''
+ packet. It is used as a heuristic when determining the maximum
+ size of memory-read and memory-write packets. A target will
+ typically only reserve a buffer large enough to hold the ``g''
+ packet. The size does not include packet overhead (headers and
+ trailers). */
+ long actual_register_packet_size;
+
+ /* This is the maximum size (in chars) of a non read/write packet.
+ It is also used as a cap on the size of read/write packets. */
+ long remote_packet_size;
+};
+
+/* Handle for retreving the remote protocol data from gdbarch. */
+static struct gdbarch_data *remote_gdbarch_data_handle;
+
+static struct remote_state *
+get_remote_state ()
+{
+ return gdbarch_data (remote_gdbarch_data_handle);
+}
+
+static void *
+init_remote_state (struct gdbarch *gdbarch)
+{
+ int regnum;
+ struct remote_state *rs = xmalloc (sizeof (struct remote_state));
+
+ /* Start out by having the remote protocol mimic the existing
+ behavour - just copy in the description of the register cache. */
+ rs->sizeof_g_packet = REGISTER_BYTES; /* OK use. */
+
+ /* Assume a 1:1 regnum<->pnum table. */
+ rs->regs = xcalloc (NUM_REGS + NUM_PSEUDO_REGS, sizeof (struct packet_reg));
+ for (regnum = 0; regnum < NUM_REGS + NUM_PSEUDO_REGS; regnum++)
+ {
+ struct packet_reg *r = &rs->regs[regnum];
+ r->pnum = regnum;
+ r->regnum = regnum;
+ r->offset = REGISTER_BYTE (regnum);
+ r->in_g_packet = (regnum < NUM_REGS);
+ /* ...size = REGISTER_RAW_SIZE (regnum); */
+ /* ...name = REGISTER_NAME (regnum); */
+ }
+
+ /* Default maximum number of characters in a packet body. Many
+ remote stubs have a hardwired buffer size of 400 bytes
+ (c.f. BUFMAX in m68k-stub.c and i386-stub.c). BUFMAX-1 is used
+ as the maximum packet-size to ensure that the packet and an extra
+ NUL character can always fit in the buffer. This stops GDB
+ trashing stubs that try to squeeze an extra NUL into what is
+ already a full buffer (As of 1999-12-04 that was most stubs. */
+ rs->remote_packet_size = 400 - 1;
+
+ /* Should rs->sizeof_g_packet needs more space than the
+ default, adjust the size accordingly. Remember that each byte is
+ encoded as two characters. 32 is the overhead for the packet
+ header / footer. NOTE: cagney/1999-10-26: I suspect that 8
+ (``$NN:G...#NN'') is a better guess, the below has been padded a
+ little. */
+ if (rs->sizeof_g_packet > ((rs->remote_packet_size - 32) / 2))
+ rs->remote_packet_size = (rs->sizeof_g_packet * 2 + 32);
+
+ /* This one is filled in when a ``g'' packet is received. */
+ rs->actual_register_packet_size = 0;
+
+ return rs;
+}
+
+static void
+free_remote_state (struct gdbarch *gdbarch, void *pointer)
+{
+ struct remote_state *data = pointer;
+ xfree (data->regs);
+ xfree (data);
+}
+
+static struct packet_reg *
+packet_reg_from_regnum (struct remote_state *rs, long regnum)
+{
+ if (regnum < 0 && regnum >= NUM_REGS + NUM_PSEUDO_REGS)
+ return NULL;
+ else
+ {
+ struct packet_reg *r = &rs->regs[regnum];
+ gdb_assert (r->regnum == regnum);
+ return r;
+ }
+}
+
+static struct packet_reg *
+packet_reg_from_pnum (struct remote_state *rs, LONGEST pnum)
+{
+ int i;
+ for (i = 0; i < NUM_REGS + NUM_PSEUDO_REGS; i++)
+ {
+ struct packet_reg *r = &rs->regs[i];
+ if (r->pnum == pnum)
+ return r;
+ }
+ return NULL;
+}
+
/* */
static struct target_ops remote_ops;
/* Descriptor for I/O to remote machine. Initialize it to NULL so that
remote_open knows that we don't have a file open when the program
starts. */
-static serial_t remote_desc = NULL;
+static struct serial *remote_desc = NULL;
/* This is set by the target (thru the 'S' message)
to denote that the target is in kernel mode. */
static int remote_async_terminal_ours_p;
\f
-/* This is the size (in chars) of the first response to the ``g''
- packet. It is used as a heuristic when determining the maximum
- size of memory-read and memory-write packets. A target will
- typically only reserve a buffer large enough to hold the ``g''
- packet. The size does not include packet overhead (headers and
- trailers). */
-
-static long actual_register_packet_size;
-
-/* This is the maximum size (in chars) of a non read/write packet. It
- is also used as a cap on the size of read/write packets. */
-
-static long remote_packet_size;
-/* compatibility. */
-#define PBUFSIZ (remote_packet_size)
-
/* User configurable variables for the number of characters in a
- memory read/write packet. MIN (PBUFSIZ, g-packet-size) is the
- default. Some targets need smaller values (fifo overruns, et.al.)
- and some users need larger values (speed up transfers). The
- variables ``preferred_*'' (the user request), ``current_*'' (what
- was actually set) and ``forced_*'' (Positive - a soft limit,
- negative - a hard limit). */
+ memory read/write packet. MIN ((rs->remote_packet_size),
+ rs->sizeof_g_packet) is the default. Some targets need smaller
+ values (fifo overruns, et.al.) and some users need larger values
+ (speed up transfers). The variables ``preferred_*'' (the user
+ request), ``current_*'' (what was actually set) and ``forced_*''
+ (Positive - a soft limit, negative - a hard limit). */
struct memory_packet_config
{
static long
get_memory_packet_size (struct memory_packet_config *config)
{
+ struct remote_state *rs = get_remote_state ();
/* NOTE: The somewhat arbitrary 16k comes from the knowledge (folk
law?) that some hosts don't cope very well with large alloca()
calls. Eventually the alloca() code will be replaced by calls to
}
else
{
- what_they_get = remote_packet_size;
+ what_they_get = (rs->remote_packet_size);
/* Limit the packet to the size specified by the user. */
if (config->size > 0
&& what_they_get > config->size)
what_they_get = config->size;
/* Limit it to the size of the targets ``g'' response. */
- if (actual_register_packet_size > 0
- && what_they_get > actual_register_packet_size)
- what_they_get = actual_register_packet_size;
+ if ((rs->actual_register_packet_size) > 0
+ && what_they_get > (rs->actual_register_packet_size))
+ what_they_get = (rs->actual_register_packet_size);
}
if (what_they_get > MAX_REMOTE_PACKET_SIZE)
what_they_get = MAX_REMOTE_PACKET_SIZE;
static long
get_memory_read_packet_size (void)
{
+ struct remote_state *rs = get_remote_state ();
long size = get_memory_packet_size (&memory_read_packet_config);
/* FIXME: cagney/1999-11-07: Functions like getpkt() need to get an
extra buffer size argument before the memory read size can be
- increased beyond PBUFSIZ. */
- if (size > PBUFSIZ)
- size = PBUFSIZ;
+ increased beyond (rs->remote_packet_size). */
+ if (size > (rs->remote_packet_size))
+ size = (rs->remote_packet_size);
return size;
}
-/* Register packet size initialization. Since the bounds change when
- the architecture changes (namely REGISTER_BYTES) this all needs to
- be multi-arched. */
-
-static void
-register_remote_packet_sizes (void)
-{
- REGISTER_GDBARCH_SWAP (remote_packet_size);
- REGISTER_GDBARCH_SWAP (actual_register_packet_size);
-}
-
-static void
-build_remote_packet_sizes (void)
-{
- /* Default maximum number of characters in a packet body. Many
- remote stubs have a hardwired buffer size of 400 bytes
- (c.f. BUFMAX in m68k-stub.c and i386-stub.c). BUFMAX-1 is used
- as the maximum packet-size to ensure that the packet and an extra
- NUL character can always fit in the buffer. This stops GDB
- trashing stubs that try to squeeze an extra NUL into what is
- already a full buffer (As of 1999-12-04 that was most stubs. */
- remote_packet_size = 400 - 1;
- /* Should REGISTER_BYTES needs more space than the default, adjust
- the size accordingly. Remember that each byte is encoded as two
- characters. 32 is the overhead for the packet header /
- footer. NOTE: cagney/1999-10-26: I suspect that 8
- (``$NN:G...#NN'') is a better guess, the below has been padded a
- little. */
- if (REGISTER_BYTES > ((remote_packet_size - 32) / 2))
- remote_packet_size = (REGISTER_BYTES * 2 + 32);
-
- /* This one is filled in when a ``g'' packet is received. */
- actual_register_packet_size = 0;
-}
\f
/* Generic configuration support for packets the stub optionally
supports. Allows the user to specify the use of the packet as well
config->title = title;
config->detect = CMD_AUTO_BOOLEAN_AUTO;
config->support = PACKET_SUPPORT_UNKNOWN;
- asprintf (&set_doc, "Set use of remote protocol `%s' (%s) packet",
- name, title);
- asprintf (&show_doc, "Show current use of remote protocol `%s' (%s) packet",
- name, title);
+ xasprintf (&set_doc, "Set use of remote protocol `%s' (%s) packet",
+ name, title);
+ xasprintf (&show_doc, "Show current use of remote protocol `%s' (%s) packet",
+ name, title);
/* set/show TITLE-packet {auto,on,off} */
- asprintf (&cmd_name, "%s-packet", title);
+ xasprintf (&cmd_name, "%s-packet", title);
set_cmd = add_set_auto_boolean_cmd (cmd_name, class_obscure,
&config->detect, set_doc,
set_remote_list);
- set_cmd->function.sfunc = set_func;
+ set_cmd_sfunc (set_cmd, set_func);
show_cmd = add_cmd (cmd_name, class_obscure, show_func, show_doc,
show_remote_list);
/* set/show remote NAME-packet {auto,on,off} -- legacy */
if (legacy)
{
char *legacy_name;
- asprintf (&legacy_name, "%s-packet", name);
+ xasprintf (&legacy_name, "%s-packet", name);
add_alias_cmd (legacy_name, cmd_name, class_obscure, 0,
set_remote_list);
add_alias_cmd (legacy_name, cmd_name, class_obscure, 0,
config->support = PACKET_ENABLE;
break;
case PACKET_DISABLE:
- internal_error ("packet_ok: attempt to use a disabled packet");
+ internal_error (__FILE__, __LINE__,
+ "packet_ok: attempt to use a disabled packet");
break;
case PACKET_ENABLE:
break;
}
}
+/* Should we try the 'qSymbol' (target symbol lookup service) request? */
+static struct packet_config remote_protocol_qSymbol;
+
+static void
+set_remote_protocol_qSymbol_packet_cmd (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ update_packet_config (&remote_protocol_qSymbol);
+}
+
+static void
+show_remote_protocol_qSymbol_packet_cmd (char *args, int from_tty)
+{
+ show_packet_config_cmd (&remote_protocol_qSymbol);
+}
+
+/* Should we try the 'e' (step over range) request? */
+static struct packet_config remote_protocol_e;
+
+static void
+set_remote_protocol_e_packet_cmd (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ update_packet_config (&remote_protocol_e);
+}
+
+static void
+show_remote_protocol_e_packet_cmd (char *args, int from_tty)
+{
+ show_packet_config_cmd (&remote_protocol_e);
+}
+
+
+/* Should we try the 'E' (step over range / w signal #) request? */
+static struct packet_config remote_protocol_E;
+
+static void
+set_remote_protocol_E_packet_cmd (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ update_packet_config (&remote_protocol_E);
+}
+
+static void
+show_remote_protocol_E_packet_cmd (char *args, int from_tty)
+{
+ show_packet_config_cmd (&remote_protocol_E);
+}
+
+
/* Should we try the 'P' (set register) request? */
static struct packet_config remote_protocol_P;
/* If this is a new thread, add it to GDB's thread list.
If we leave it up to WFI to do this, bad things will happen. */
- if (!in_thread_list (currthread))
+ if (!in_thread_list (pid_to_ptid (currthread)))
{
- add_thread (currthread);
-#ifdef UI_OUT
+ add_thread (pid_to_ptid (currthread));
ui_out_text (uiout, "[New ");
- ui_out_text (uiout, target_pid_to_str (currthread));
+ ui_out_text (uiout, target_pid_to_str (pid_to_ptid (currthread)));
ui_out_text (uiout, "]\n");
-#else
- printf_filtered ("[New %s]\n", target_pid_to_str (currthread));
-#endif
}
}
static void
set_thread (int th, int gen)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
int state = gen ? general_thread : continue_thread;
if (state == th)
else
sprintf (&buf[2], "%x", th);
putpkt (buf);
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
if (gen)
general_thread = th;
else
/* Return nonzero if the thread TH is still alive on the remote system. */
static int
-remote_thread_alive (int tid)
+remote_thread_alive (ptid_t ptid)
{
+ int tid = PIDGET (ptid);
char buf[16];
if (tid < 0)
remote_unpack_thread_info_response (char *pkt, threadref *expectedref,
struct gdb_ext_thread_info *info)
{
+ struct remote_state *rs = get_remote_state ();
int mask, length;
unsigned int tag;
threadref ref;
- char *limit = pkt + PBUFSIZ; /* plausable parsing limit */
+ char *limit = pkt + (rs->remote_packet_size); /* plausable parsing limit */
int retval = 1;
/* info->threadid = 0; FIXME: implement zero_threadref */
remote_get_threadinfo (threadref *threadid, int fieldset, /* TAG mask */
struct gdb_ext_thread_info *info)
{
+ struct remote_state *rs = get_remote_state ();
int result;
- char *threadinfo_pkt = alloca (PBUFSIZ);
+ char *threadinfo_pkt = alloca (rs->remote_packet_size);
pack_threadinfo_request (threadinfo_pkt, fieldset, threadid);
putpkt (threadinfo_pkt);
- getpkt (threadinfo_pkt, PBUFSIZ, 0);
+ getpkt (threadinfo_pkt, (rs->remote_packet_size), 0);
result = remote_unpack_thread_info_response (threadinfo_pkt + 2, threadid,
info);
return result;
threadref *original_echo, threadref *resultlist,
int *doneflag)
{
+ struct remote_state *rs = get_remote_state ();
char *limit;
int count, resultcount, done;
resultcount = 0;
/* Assume the 'q' and 'M chars have been stripped. */
- limit = pkt + (PBUFSIZ - BUF_THREAD_ID_SIZE); /* done parse past here */
+ limit = pkt + ((rs->remote_packet_size) - BUF_THREAD_ID_SIZE); /* done parse past here */
pkt = unpack_byte (pkt, &count); /* count field */
pkt = unpack_nibble (pkt, &done);
/* The first threadid is the argument threadid. */
remote_get_threadlist (int startflag, threadref *nextthread, int result_limit,
int *done, int *result_count, threadref *threadlist)
{
+ struct remote_state *rs = get_remote_state ();
static threadref echo_nextthread;
- char *threadlist_packet = alloca (PBUFSIZ);
- char *t_response = alloca (PBUFSIZ);
+ char *threadlist_packet = alloca (rs->remote_packet_size);
+ char *t_response = alloca (rs->remote_packet_size);
int result = 1;
/* Trancate result limit to be smaller than the packet size */
- if ((((result_limit + 1) * BUF_THREAD_ID_SIZE) + 10) >= PBUFSIZ)
- result_limit = (PBUFSIZ / BUF_THREAD_ID_SIZE) - 2;
+ if ((((result_limit + 1) * BUF_THREAD_ID_SIZE) + 10) >= (rs->remote_packet_size))
+ result_limit = ((rs->remote_packet_size) / BUF_THREAD_ID_SIZE) - 2;
pack_threadlist_request (threadlist_packet,
startflag, result_limit, nextthread);
putpkt (threadlist_packet);
- getpkt (t_response, PBUFSIZ, 0);
+ getpkt (t_response, (rs->remote_packet_size), 0);
*result_count =
parse_threadlist_response (t_response + 2, result_limit, &echo_nextthread,
static int
remote_newthread_step (threadref *ref, void *context)
{
- int pid;
+ ptid_t ptid;
+
+ ptid = pid_to_ptid (threadref_to_int (ref));
- pid = threadref_to_int (ref);
- if (!in_thread_list (pid))
- add_thread (pid);
+ if (!in_thread_list (ptid))
+ add_thread (ptid);
return 1; /* continue iterator */
}
#define CRAZY_MAX_THREADS 1000
-static int
-remote_current_thread (int oldpid)
+static ptid_t
+remote_current_thread (ptid_t oldpid)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
putpkt ("qC");
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
if (buf[0] == 'Q' && buf[1] == 'C')
- return strtol (&buf[2], NULL, 16);
+ return pid_to_ptid (strtol (&buf[2], NULL, 16));
else
return oldpid;
}
{
remote_threadlist_iterator (remote_newthread_step, 0,
CRAZY_MAX_THREADS);
- if (inferior_pid == MAGIC_NULL_PID) /* ack ack ack */
- inferior_pid = remote_current_thread (inferior_pid);
+ if (PIDGET (inferior_ptid) == MAGIC_NULL_PID) /* ack ack ack */
+ inferior_ptid = remote_current_thread (inferior_ptid);
}
/*
static void
remote_threads_info (void)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
char *bufp;
int tid;
{
putpkt ("qfThreadInfo");
bufp = buf;
- getpkt (bufp, PBUFSIZ, 0);
+ getpkt (bufp, (rs->remote_packet_size), 0);
if (bufp[0] != '\0') /* q packet recognized */
{
while (*bufp++ == 'm') /* reply contains one or more TID */
do
{
tid = strtol (bufp, &bufp, 16);
- if (tid != 0 && !in_thread_list (tid))
- add_thread (tid);
+ if (tid != 0 && !in_thread_list (pid_to_ptid (tid)))
+ add_thread (pid_to_ptid (tid));
}
while (*bufp++ == ','); /* comma-separated list */
putpkt ("qsThreadInfo");
bufp = buf;
- getpkt (bufp, PBUFSIZ, 0);
+ getpkt (bufp, (rs->remote_packet_size), 0);
}
return; /* done */
}
static char *
remote_threads_extra_info (struct thread_info *tp)
{
+ struct remote_state *rs = get_remote_state ();
int result;
int set;
threadref id;
struct gdb_ext_thread_info threadinfo;
static char display_buf[100]; /* arbitrary... */
- char *bufp = alloca (PBUFSIZ);
+ char *bufp = alloca (rs->remote_packet_size);
int n = 0; /* position in display_buf */
if (remote_desc == 0) /* paranoia */
- internal_error ("remote_threads_extra_info");
+ internal_error (__FILE__, __LINE__,
+ "remote_threads_extra_info");
if (use_threadextra_query)
{
- sprintf (bufp, "qThreadExtraInfo,%x", tp->pid);
+ sprintf (bufp, "qThreadExtraInfo,%x", PIDGET (tp->ptid));
putpkt (bufp);
- getpkt (bufp, PBUFSIZ, 0);
+ getpkt (bufp, (rs->remote_packet_size), 0);
if (bufp[0] != 0)
{
- char *p;
-
- for (p = display_buf;
- p < display_buf + sizeof(display_buf) - 1 &&
- bufp[0] != 0 &&
- bufp[1] != 0;
- p++, bufp+=2)
- {
- *p = fromhex (bufp[0]) * 16 + fromhex (bufp[1]);
- }
- *p = 0;
+ n = min (strlen (bufp) / 2, sizeof (display_buf));
+ result = hex2bin (bufp, display_buf, n);
+ display_buf [result] = '\0';
return display_buf;
}
}
use_threadextra_query = 0;
set = TAG_THREADID | TAG_EXISTS | TAG_THREADNAME
| TAG_MOREDISPLAY | TAG_DISPLAY;
- int_to_threadref (&id, tp->pid);
+ int_to_threadref (&id, PIDGET (tp->ptid));
if (remote_get_threadinfo (&id, set, &threadinfo))
if (threadinfo.active)
{
static void
extended_remote_restart (void)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
/* Send the restart command; for reasons I don't understand the
remote side really expects a number after the "R". */
/* Now query for status so this looks just like we restarted
gdbserver from scratch. */
putpkt ("?");
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
}
\f
/* Clean up connection to a remote debugger. */
remote_close (int quitting)
{
if (remote_desc)
- SERIAL_CLOSE (remote_desc);
+ serial_close (remote_desc);
remote_desc = NULL;
}
static void
get_offsets (void)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
char *ptr;
int lose;
CORE_ADDR text_addr, data_addr, bss_addr;
putpkt ("qOffsets");
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
if (buf[0] == '\000')
return; /* Return silently. Stub doesn't support
asection *sect;
bfd *abfd;
int len;
- char *p;
if (symfile_objfile == NULL)
return -1; /* no can do nothin' */
sect != 0;
sect = sect->next)
{
- p = (unsigned char *) bfd_get_section_name (abfd, sect);
+ const char *p = bfd_get_section_name (abfd, sect);
len = strlen (p);
if (strcmp (p + len - 4, "data") == 0) /* ends in "data" */
if (data_base == 0 ||
static int
remote_start_remote (PTR dummy)
{
- immediate_quit = 1; /* Allow user to interrupt it */
+ immediate_quit++; /* Allow user to interrupt it */
/* Ack any packet which the remote side has already sent. */
- SERIAL_WRITE (remote_desc, "+", 1);
+ serial_write (remote_desc, "+", 1);
/* Let the stub know that we want it to return the thread. */
set_thread (-1, 0);
- inferior_pid = remote_current_thread (inferior_pid);
+ inferior_ptid = remote_current_thread (inferior_ptid);
get_offsets (); /* Get text, data & bss offsets */
putpkt ("?"); /* initiate a query from remote machine */
- immediate_quit = 0;
+ immediate_quit--;
return remote_start_remote_dummy (dummy);
}
/* Generic code for opening a connection to a remote target. */
-static DCACHE *remote_dcache;
-
static void
init_all_packet_configs (void)
{
int i;
+ update_packet_config (&remote_protocol_e);
+ update_packet_config (&remote_protocol_E);
update_packet_config (&remote_protocol_P);
+ update_packet_config (&remote_protocol_qSymbol);
for (i = 0; i < NR_Z_PACKET_TYPES; i++)
update_packet_config (&remote_protocol_Z[i]);
/* Force remote_write_bytes to check whether target supports binary
update_packet_config (&remote_protocol_binary_download);
}
+/* Symbol look-up. */
+
+static void
+remote_check_symbols (struct objfile *objfile)
+{
+ struct remote_state *rs = get_remote_state ();
+ char *msg, *reply, *tmp;
+ struct minimal_symbol *sym;
+ int end;
+
+ if (remote_protocol_qSymbol.support == PACKET_DISABLE)
+ return;
+
+ msg = alloca (rs->remote_packet_size);
+ reply = alloca (rs->remote_packet_size);
+
+ /* Invite target to request symbol lookups. */
+
+ putpkt ("qSymbol::");
+ getpkt (reply, (rs->remote_packet_size), 0);
+ packet_ok (reply, &remote_protocol_qSymbol);
+
+ while (strncmp (reply, "qSymbol:", 8) == 0)
+ {
+ tmp = &reply[8];
+ end = hex2bin (tmp, msg, strlen (tmp) / 2);
+ msg[end] = '\0';
+ sym = lookup_minimal_symbol (msg, NULL, NULL);
+ if (sym == NULL)
+ sprintf (msg, "qSymbol::%s", &reply[8]);
+ else
+ sprintf (msg, "qSymbol:%s:%s",
+ paddr_nz (SYMBOL_VALUE_ADDRESS (sym)),
+ &reply[8]);
+ putpkt (msg);
+ getpkt (reply, (rs->remote_packet_size), 0);
+ }
+}
+
static void
remote_open_1 (char *name, int from_tty, struct target_ops *target,
int extended_p)
{
+ struct remote_state *rs = get_remote_state ();
if (name == 0)
- error ("To open a remote debug connection, you need to specify what\n\
-serial device is attached to the remote system\n\
-(e.g. /dev/ttyS0, /dev/ttya, COM1, etc.).");
+ error ("To open a remote debug connection, you need to specify what\n"
+ "serial device is attached to the remote system\n"
+ "(e.g. /dev/ttyS0, /dev/ttya, COM1, etc.).");
/* See FIXME above */
wait_forever_enabled_p = 1;
unpush_target (target);
- if (!remote_dcache)
- remote_dcache = dcache_init (remote_read_bytes, remote_write_bytes);
- else
- dcache_invd (remote_dcache);
-
- remote_desc = SERIAL_OPEN (name);
+ remote_desc = serial_open (name);
if (!remote_desc)
perror_with_name (name);
if (baud_rate != -1)
{
- if (SERIAL_SETBAUDRATE (remote_desc, baud_rate))
+ if (serial_setbaudrate (remote_desc, baud_rate))
{
- SERIAL_CLOSE (remote_desc);
+ serial_close (remote_desc);
perror_with_name (name);
}
}
- SERIAL_RAW (remote_desc);
+ serial_raw (remote_desc);
/* If there is something sitting in the buffer we might take it as a
response to a command, which would be bad. */
- SERIAL_FLUSH_INPUT (remote_desc);
+ serial_flush_input (remote_desc);
if (from_tty)
{
be split out into seperate variables, especially since GDB will
someday have a notion of debugging several processes. */
- inferior_pid = MAGIC_NULL_PID;
+ inferior_ptid = pid_to_ptid (MAGIC_NULL_PID);
+#ifdef SOLIB_CREATE_INFERIOR_HOOK
+ /* First delete any symbols previously loaded from shared libraries. */
+ no_shared_libraries (NULL, 0);
+#endif
+
/* Start the remote connection; if error (0), discard this target.
In particular, if the user quits, be sure to discard it
(we'd be in an inconsistent state otherwise). */
if (extended_p)
{
- /* tell the remote that we're using the extended protocol. */
- char *buf = alloca (PBUFSIZ);
+ /* Tell the remote that we are using the extended protocol. */
+ char *buf = alloca (rs->remote_packet_size);
putpkt ("!");
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
}
+#ifdef SOLIB_CREATE_INFERIOR_HOOK
+ /* FIXME: need a master target_open vector from which all
+ remote_opens can be called, so that stuff like this can
+ go there. Failing that, the following code must be copied
+ to the open function for any remote target that wants to
+ support svr4 shared libraries. */
+
+ /* Set up to detect and load shared libraries. */
+ if (exec_bfd) /* No use without an exec file. */
+ {
+ SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid));
+ remote_check_symbols (symfile_objfile);
+ }
+#endif
}
/* Just like remote_open but with asynchronous support. */
remote_async_open_1 (char *name, int from_tty, struct target_ops *target,
int extended_p)
{
+ struct remote_state *rs = get_remote_state ();
if (name == 0)
- error ("To open a remote debug connection, you need to specify what\n\
-serial device is attached to the remote system\n\
-(e.g. /dev/ttyS0, /dev/ttya, COM1, etc.).");
+ error ("To open a remote debug connection, you need to specify what\n"
+ "serial device is attached to the remote system\n"
+ "(e.g. /dev/ttyS0, /dev/ttya, COM1, etc.).");
target_preopen (from_tty);
unpush_target (target);
- remote_dcache = dcache_init (remote_read_bytes, remote_write_bytes);
-
- remote_desc = SERIAL_OPEN (name);
+ remote_desc = serial_open (name);
if (!remote_desc)
perror_with_name (name);
if (baud_rate != -1)
{
- if (SERIAL_SETBAUDRATE (remote_desc, baud_rate))
+ if (serial_setbaudrate (remote_desc, baud_rate))
{
- SERIAL_CLOSE (remote_desc);
+ serial_close (remote_desc);
perror_with_name (name);
}
}
- SERIAL_RAW (remote_desc);
+ serial_raw (remote_desc);
/* If there is something sitting in the buffer we might take it as a
response to a command, which would be bad. */
- SERIAL_FLUSH_INPUT (remote_desc);
+ serial_flush_input (remote_desc);
if (from_tty)
{
flag indicating that a target is active. These functions should
be split out into seperate variables, especially since GDB will
someday have a notion of debugging several processes. */
- inferior_pid = MAGIC_NULL_PID;
+ inferior_ptid = pid_to_ptid (MAGIC_NULL_PID);
/* With this target we start out by owning the terminal. */
remote_async_terminal_ours_p = 1;
/* FIXME: cagney/1999-09-23: During the initial connection it is
assumed that the target is already ready and able to respond to
- requests. Unfortunatly remote_start_remote() eventually calls
+ requests. Unfortunately remote_start_remote() eventually calls
wait_for_inferior() with no timeout. wait_forever_enabled_p gets
around this. Eventually a mechanism that allows
wait_for_inferior() to expect/get timeouts will be
implemented. */
wait_forever_enabled_p = 0;
+#ifdef SOLIB_CREATE_INFERIOR_HOOK
+ /* First delete any symbols previously loaded from shared libraries. */
+ no_shared_libraries (NULL, 0);
+#endif
+
/* Start the remote connection; if error (0), discard this target.
In particular, if the user quits, be sure to discard it
(we'd be in an inconsistent state otherwise). */
if (extended_p)
{
- /* tell the remote that we're using the extended protocol. */
- char *buf = alloca (PBUFSIZ);
+ /* Tell the remote that we are using the extended protocol. */
+ char *buf = alloca (rs->remote_packet_size);
putpkt ("!");
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
+ }
+#ifdef SOLIB_CREATE_INFERIOR_HOOK
+ /* FIXME: need a master target_open vector from which all
+ remote_opens can be called, so that stuff like this can
+ go there. Failing that, the following code must be copied
+ to the open function for any remote target that wants to
+ support svr4 shared libraries. */
+
+ /* Set up to detect and load shared libraries. */
+ if (exec_bfd) /* No use without an exec file. */
+ {
+ SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid));
+ remote_check_symbols (symfile_objfile);
}
+#endif
}
/* This takes a program previously attached to and detaches it. After
static void
remote_detach (char *args, int from_tty)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
if (args)
error ("Argument given to \"detach\" when remotely debugging.");
/* Tell the remote target to detach. */
strcpy (buf, "D");
- remote_send (buf, PBUFSIZ);
+ remote_send (buf, (rs->remote_packet_size));
target_mourn_inferior ();
if (from_tty)
static void
remote_async_detach (char *args, int from_tty)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
if (args)
error ("Argument given to \"detach\" when remotely debugging.");
/* Tell the remote target to detach. */
strcpy (buf, "D");
- remote_send (buf, PBUFSIZ);
+ remote_send (buf, (rs->remote_packet_size));
/* Unregister the file descriptor from the event loop. */
if (target_is_async_p ())
- SERIAL_ASYNC (remote_desc, NULL, 0);
+ serial_async (remote_desc, NULL, 0);
target_mourn_inferior ();
if (from_tty)
/* Convert hex digit A to a number. */
-int
+static int
fromhex (int a)
{
if (a >= '0' && a <= '9')
error ("Reply contains invalid hex digit %d", a);
}
+static int
+hex2bin (const char *hex, char *bin, int count)
+{
+ int i;
+
+ for (i = 0; i < count; i++)
+ {
+ if (hex[0] == 0 || hex[1] == 0)
+ {
+ /* Hex string is short, or of uneven length.
+ Return the count that has been converted so far. */
+ return i;
+ }
+ *bin++ = fromhex (hex[0]) * 16 + fromhex (hex[1]);
+ hex += 2;
+ }
+ return i;
+}
+
/* Convert number NIB to a hex digit. */
static int
else
return 'a' + nib - 10;
}
+
+static int
+bin2hex (const char *bin, char *hex, int count)
+{
+ int i;
+ /* May use a length, or a nul-terminated string as input. */
+ if (count == 0)
+ count = strlen (bin);
+
+ for (i = 0; i < count; i++)
+ {
+ *hex++ = tohex ((*bin >> 4) & 0xf);
+ *hex++ = tohex (*bin++ & 0xf);
+ }
+ *hex = 0;
+ return i;
+}
\f
/* Tell the remote machine to resume. */
static int last_sent_step;
static void
-remote_resume (int pid, int step, enum target_signal siggnal)
+remote_resume (ptid_t ptid, int step, enum target_signal siggnal)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
+ int pid = PIDGET (ptid);
+ char *p;
if (pid == -1)
set_thread (0, 0); /* run any thread */
else
set_thread (pid, 0); /* run this thread */
- dcache_invd (remote_dcache);
-
last_sent_signal = siggnal;
last_sent_step = step;
if (target_resume_hook)
(*target_resume_hook) ();
+
+ /* The s/S/c/C packets do not return status. So if the target does
+ not support the S or C packets, the debug agent returns an empty
+ string which is detected in remote_wait(). This protocol defect
+ is fixed in the e/E packets. */
+
+ if (step && step_range_end)
+ {
+ /* If the target does not support the 'E' packet, we try the 'S'
+ packet. Ideally we would fall back to the 'e' packet if that
+ too is not supported. But that would require another copy of
+ the code to issue the 'e' packet (and fall back to 's' if not
+ supported) in remote_wait(). */
+
+ if (siggnal != TARGET_SIGNAL_0)
+ {
+ if (remote_protocol_E.support != PACKET_DISABLE)
+ {
+ p = buf;
+ *p++ = 'E';
+ *p++ = tohex (((int) siggnal >> 4) & 0xf);
+ *p++ = tohex (((int) siggnal) & 0xf);
+ *p++ = ',';
+ p += hexnumstr (p, (ULONGEST) step_range_start);
+ *p++ = ',';
+ p += hexnumstr (p, (ULONGEST) step_range_end);
+ *p++ = 0;
+
+ putpkt (buf);
+ getpkt (buf, (rs->remote_packet_size), 0);
+
+ if (packet_ok (buf, &remote_protocol_E) == PACKET_OK)
+ return;
+ }
+ }
+ else
+ {
+ if (remote_protocol_e.support != PACKET_DISABLE)
+ {
+ p = buf;
+ *p++ = 'e';
+ p += hexnumstr (p, (ULONGEST) step_range_start);
+ *p++ = ',';
+ p += hexnumstr (p, (ULONGEST) step_range_end);
+ *p++ = 0;
+
+ putpkt (buf);
+ getpkt (buf, (rs->remote_packet_size), 0);
+
+ if (packet_ok (buf, &remote_protocol_e) == PACKET_OK)
+ return;
+ }
+ }
+ }
+
if (siggnal != TARGET_SIGNAL_0)
{
buf[0] = step ? 'S' : 'C';
buf[1] = tohex (((int) siggnal >> 4) & 0xf);
- buf[2] = tohex ((int) siggnal & 0xf);
+ buf[2] = tohex (((int) siggnal) & 0xf);
buf[3] = '\0';
}
else
/* Same as remote_resume, but with async support. */
static void
-remote_async_resume (int pid, int step, enum target_signal siggnal)
+remote_async_resume (ptid_t ptid, int step, enum target_signal siggnal)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
+ int pid = PIDGET (ptid);
+ char *p;
if (pid == -1)
set_thread (0, 0); /* run any thread */
else
set_thread (pid, 0); /* run this thread */
- dcache_invd (remote_dcache);
-
last_sent_signal = siggnal;
last_sent_step = step;
if (target_resume_hook)
(*target_resume_hook) ();
+ /* The s/S/c/C packets do not return status. So if the target does
+ not support the S or C packets, the debug agent returns an empty
+ string which is detected in remote_wait(). This protocol defect
+ is fixed in the e/E packets. */
+
+ if (step && step_range_end)
+ {
+ /* If the target does not support the 'E' packet, we try the 'S'
+ packet. Ideally we would fall back to the 'e' packet if that
+ too is not supported. But that would require another copy of
+ the code to issue the 'e' packet (and fall back to 's' if not
+ supported) in remote_wait(). */
+
+ if (siggnal != TARGET_SIGNAL_0)
+ {
+ if (remote_protocol_E.support != PACKET_DISABLE)
+ {
+ p = buf;
+ *p++ = 'E';
+ *p++ = tohex (((int) siggnal >> 4) & 0xf);
+ *p++ = tohex (((int) siggnal) & 0xf);
+ *p++ = ',';
+ p += hexnumstr (p, (ULONGEST) step_range_start);
+ *p++ = ',';
+ p += hexnumstr (p, (ULONGEST) step_range_end);
+ *p++ = 0;
+
+ putpkt (buf);
+ getpkt (buf, (rs->remote_packet_size), 0);
+
+ if (packet_ok (buf, &remote_protocol_E) == PACKET_OK)
+ goto register_event_loop;
+ }
+ }
+ else
+ {
+ if (remote_protocol_e.support != PACKET_DISABLE)
+ {
+ p = buf;
+ *p++ = 'e';
+ p += hexnumstr (p, (ULONGEST) step_range_start);
+ *p++ = ',';
+ p += hexnumstr (p, (ULONGEST) step_range_end);
+ *p++ = 0;
+
+ putpkt (buf);
+ getpkt (buf, (rs->remote_packet_size), 0);
+
+ if (packet_ok (buf, &remote_protocol_e) == PACKET_OK)
+ goto register_event_loop;
+ }
+ }
+ }
+
if (siggnal != TARGET_SIGNAL_0)
{
buf[0] = step ? 'S' : 'C';
}
else
strcpy (buf, step ? "s" : "c");
+
+ putpkt (buf);
+register_event_loop:
/* We are about to start executing the inferior, let's register it
with the event loop. NOTE: this is the one place where all the
execution commands end up. We could alternatively do this in each
this information already found in the continuation block? */
if (target_is_async_p ())
target_executing = 1;
- putpkt (buf);
}
\f
fprintf_unfiltered (gdb_stdlog, "remote_stop called\n");
if (remote_break)
- SERIAL_SEND_BREAK (remote_desc);
+ serial_send_break (remote_desc);
else
- SERIAL_WRITE (remote_desc, "\003", 1);
+ serial_write (remote_desc, "\003", 1);
}
/* Ask the user what to do when an interrupt is received. */
Give up (and stop debugging it)? "))
{
target_mourn_inferior ();
- return_to_top_level (RETURN_QUIT);
+ throw_exception (RETURN_QUIT);
}
target_terminal_inferior ();
Returns "pid", which in the case of a multi-threaded
remote OS, is the thread-id. */
-static int
-remote_wait (int pid, struct target_waitstatus *status)
+static ptid_t
+remote_wait (ptid_t ptid, struct target_waitstatus *status)
{
- unsigned char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ unsigned char *buf = alloca (rs->remote_packet_size);
int thread_num = -1;
status->kind = TARGET_WAITKIND_EXITED;
unsigned char *p;
ofunc = signal (SIGINT, remote_interrupt);
- getpkt (buf, PBUFSIZ, 1);
+ getpkt (buf, (rs->remote_packet_size), 1);
signal (SIGINT, ofunc);
/* This is a hook for when we need to do something (perhaps the
case 'T': /* Status with PC, SP, FP, ... */
{
int i;
- long regno;
- char regs[MAX_REGISTER_RAW_SIZE];
+ char* regs = (char*) alloca (MAX_REGISTER_RAW_SIZE);
/* Expedited reply, containing Signal, {regno, reg} repeat */
/* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
{
unsigned char *p1;
char *p_temp;
+ int fieldsize;
- /* Read the register number */
- regno = strtol ((const char *) p, &p_temp, 16);
+ /* Read the ``P'' register number. */
+ LONGEST pnum = strtol ((const char *) p, &p_temp, 16);
p1 = (unsigned char *) p_temp;
if (p1 == p) /* No register number present here */
}
else
{
+ struct packet_reg *reg = packet_reg_from_pnum (rs, pnum);
p = p1;
if (*p++ != ':')
Packet: '%s'\n",
p, buf);
- if (regno >= NUM_REGS)
- warning ("Remote sent bad register number %ld: %s\n\
+ if (reg == NULL)
+ warning ("Remote sent bad register number %s: %s\n\
Packet: '%s'\n",
- regno, p, buf);
+ phex_nz (pnum, 0), p, buf);
- for (i = 0; i < REGISTER_RAW_SIZE (regno); i++)
- {
- if (p[0] == 0 || p[1] == 0)
- warning ("Remote reply is too short: %s", buf);
- regs[i] = fromhex (p[0]) * 16 + fromhex (p[1]);
- p += 2;
- }
- supply_register (regno, regs);
+ fieldsize = hex2bin (p, regs, REGISTER_RAW_SIZE (reg->regnum));
+ p += 2 * fieldsize;
+ if (fieldsize < REGISTER_RAW_SIZE (reg->regnum))
+ warning ("Remote reply is too short: %s", buf);
+ supply_register (reg->regnum, regs);
}
if (*p++ != ';')
got_status:
if (thread_num != -1)
{
- return thread_num;
+ return pid_to_ptid (thread_num);
}
- return inferior_pid;
+ return inferior_ptid;
}
/* Async version of remote_wait. */
-static int
-remote_async_wait (int pid, struct target_waitstatus *status)
+static ptid_t
+remote_async_wait (ptid_t ptid, struct target_waitstatus *status)
{
- unsigned char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ unsigned char *buf = alloca (rs->remote_packet_size);
int thread_num = -1;
status->kind = TARGET_WAITKIND_EXITED;
_never_ wait for ever -> test on target_is_async_p().
However, before we do that we need to ensure that the caller
knows how to take the target into/out of async mode. */
- getpkt (buf, PBUFSIZ, wait_forever_enabled_p);
+ getpkt (buf, (rs->remote_packet_size), wait_forever_enabled_p);
if (!target_is_async_p ())
signal (SIGINT, ofunc);
case 'T': /* Status with PC, SP, FP, ... */
{
int i;
- long regno;
- char regs[MAX_REGISTER_RAW_SIZE];
+ char* regs = (char*) alloca (MAX_REGISTER_RAW_SIZE);
/* Expedited reply, containing Signal, {regno, reg} repeat */
/* format is: 'Tssn...:r...;n...:r...;n...:r...;#cc', where
{
unsigned char *p1;
char *p_temp;
+ int fieldsize;
/* Read the register number */
- regno = strtol ((const char *) p, &p_temp, 16);
+ long pnum = strtol ((const char *) p, &p_temp, 16);
p1 = (unsigned char *) p_temp;
if (p1 == p) /* No register number present here */
}
else
{
+ struct packet_reg *reg = packet_reg_from_pnum (rs, pnum);
p = p1;
-
if (*p++ != ':')
warning ("Malformed packet(b) (missing colon): %s\n\
Packet: '%s'\n",
p, buf);
- if (regno >= NUM_REGS)
+ if (reg == NULL)
warning ("Remote sent bad register number %ld: %s\n\
Packet: '%s'\n",
- regno, p, buf);
+ pnum, p, buf);
- for (i = 0; i < REGISTER_RAW_SIZE (regno); i++)
- {
- if (p[0] == 0 || p[1] == 0)
- warning ("Remote reply is too short: %s", buf);
- regs[i] = fromhex (p[0]) * 16 + fromhex (p[1]);
- p += 2;
- }
- supply_register (regno, regs);
+ fieldsize = hex2bin (p, regs, REGISTER_RAW_SIZE (reg->regnum));
+ p += 2 * fieldsize;
+ if (fieldsize < REGISTER_RAW_SIZE (reg->regnum))
+ warning ("Remote reply is too short: %s", buf);
+ supply_register (reg->regnum, regs);
}
if (*p++ != ';')
got_status:
if (thread_num != -1)
{
- return thread_num;
+ return pid_to_ptid (thread_num);
}
- return inferior_pid;
+ return inferior_ptid;
}
/* Number of bytes of registers this stub implements. */
static int register_bytes_found;
/* Read the remote registers into the block REGS. */
-/* Currently we just read all the registers, so we don't use regno. */
+/* Currently we just read all the registers, so we don't use regnum. */
/* ARGSUSED */
static void
-remote_fetch_registers (int regno)
+remote_fetch_registers (int regnum)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
int i;
char *p;
- char regs[REGISTER_BYTES];
+ char *regs = alloca (rs->sizeof_g_packet);
+
+ set_thread (PIDGET (inferior_ptid), 1);
- set_thread (inferior_pid, 1);
+ if (regnum >= 0)
+ {
+ struct packet_reg *reg = packet_reg_from_regnum (rs, regnum);
+ gdb_assert (reg != NULL);
+ if (!reg->in_g_packet)
+ internal_error (__FILE__, __LINE__,
+ "Attempt to fetch a non G-packet register when this "
+ "remote.c does not support the p-packet.");
+ }
sprintf (buf, "g");
- remote_send (buf, PBUFSIZ);
+ remote_send (buf, (rs->remote_packet_size));
/* Save the size of the packet sent to us by the target. Its used
as a heuristic when determining the max size of packets that the
target can safely receive. */
- if (actual_register_packet_size == 0)
- actual_register_packet_size = strlen (buf);
+ if ((rs->actual_register_packet_size) == 0)
+ (rs->actual_register_packet_size) = strlen (buf);
/* Unimplemented registers read as all bits zero. */
- memset (regs, 0, REGISTER_BYTES);
+ memset (regs, 0, rs->sizeof_g_packet);
/* We can get out of synch in various cases. If the first character
in the buffer is not a hex character, assume that has happened
if (remote_debug)
fprintf_unfiltered (gdb_stdlog,
"Bad register packet; fetching a new packet\n");
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
}
/* Reply describes registers byte by byte, each byte encoded as two
register cacheing/storage mechanism. */
p = buf;
- for (i = 0; i < REGISTER_BYTES; i++)
+ for (i = 0; i < rs->sizeof_g_packet; i++)
{
if (p[0] == 0)
break;
if (i != register_bytes_found)
{
register_bytes_found = i;
-#ifdef REGISTER_BYTES_OK
- if (!REGISTER_BYTES_OK (i))
+ if (REGISTER_BYTES_OK_P ()
+ && !REGISTER_BYTES_OK (i))
warning ("Remote reply is too short: %s", buf);
-#endif
}
-supply_them:
- for (i = 0; i < NUM_REGS; i++)
- {
- supply_register (i, ®s[REGISTER_BYTE (i)]);
- if (buf[REGISTER_BYTE (i) * 2] == 'x')
- register_valid[i] = -1; /* register value not available */
- }
+ supply_them:
+ {
+ int i;
+ for (i = 0; i < NUM_REGS + NUM_PSEUDO_REGS; i++)
+ {
+ struct packet_reg *r = &rs->regs[i];
+ if (r->in_g_packet)
+ {
+ supply_register (r->regnum, regs + r->offset);
+ if (buf[r->offset * 2] == 'x')
+ set_register_cached (i, -1);
+ }
+ }
+ }
}
/* Prepare to store registers. Since we may send them all (using a
{
case PACKET_DISABLE:
case PACKET_SUPPORT_UNKNOWN:
- read_register_bytes (0, (char *) NULL, REGISTER_BYTES);
+ /* NOTE: This isn't rs->sizeof_g_packet because here, we are
+ forcing the register cache to read its and not the target
+ registers. */
+ read_register_bytes (0, (char *) NULL, REGISTER_BYTES); /* OK use. */
break;
case PACKET_ENABLE:
break;
}
}
-/* Helper: Attempt to store REGNO using the P packet. Return fail IFF
+/* Helper: Attempt to store REGNUM using the P packet. Return fail IFF
packet was not recognized. */
static int
-store_register_using_P (int regno)
+store_register_using_P (int regnum)
{
+ struct remote_state *rs = get_remote_state ();
+ struct packet_reg *reg = packet_reg_from_regnum (rs, regnum);
/* Try storing a single register. */
- char *buf = alloca (PBUFSIZ);
- char *regp;
+ char *buf = alloca (rs->remote_packet_size);
+ char *regp = alloca (MAX_REGISTER_RAW_SIZE);
char *p;
int i;
- sprintf (buf, "P%x=", regno);
+ sprintf (buf, "P%s=", phex_nz (reg->pnum, 0));
p = buf + strlen (buf);
- regp = ®isters[REGISTER_BYTE (regno)];
- for (i = 0; i < REGISTER_RAW_SIZE (regno); ++i)
- {
- *p++ = tohex ((regp[i] >> 4) & 0xf);
- *p++ = tohex (regp[i] & 0xf);
- }
- *p = '\0';
- remote_send (buf, PBUFSIZ);
+ regcache_collect (reg->regnum, regp);
+ bin2hex (regp, p, REGISTER_RAW_SIZE (reg->regnum));
+ remote_send (buf, rs->remote_packet_size);
return buf[0] != '\0';
}
-/* Store register REGNO, or all registers if REGNO == -1, from the contents
- of REGISTERS. FIXME: ignores errors. */
+/* Store register REGNUM, or all registers if REGNUM == -1, from the contents
+ of the register cache buffer. FIXME: ignores errors. */
static void
-remote_store_registers (int regno)
+remote_store_registers (int regnum)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf;
+ char *regs;
int i;
char *p;
- set_thread (inferior_pid, 1);
+ set_thread (PIDGET (inferior_ptid), 1);
- if (regno >= 0)
+ if (regnum >= 0)
{
switch (remote_protocol_P.support)
{
case PACKET_DISABLE:
break;
case PACKET_ENABLE:
- if (store_register_using_P (regno))
+ if (store_register_using_P (regnum))
return;
else
error ("Protocol error: P packet not recognized by stub");
case PACKET_SUPPORT_UNKNOWN:
- if (store_register_using_P (regno))
+ if (store_register_using_P (regnum))
{
/* The stub recognized the 'P' packet. Remember this. */
remote_protocol_P.support = PACKET_ENABLE;
}
}
- buf[0] = 'G';
+ /* Extract all the registers in the regcache copying them into a
+ local buffer. */
+ {
+ int i;
+ regs = alloca (rs->sizeof_g_packet);
+ memset (regs, rs->sizeof_g_packet, 0);
+ for (i = 0; i < NUM_REGS + NUM_PSEUDO_REGS; i++)
+ {
+ struct packet_reg *r = &rs->regs[i];
+ if (r->in_g_packet)
+ regcache_collect (r->regnum, regs + r->offset);
+ }
+ }
/* Command describes registers byte by byte,
each byte encoded as two hex characters. */
-
- p = buf + 1;
+ buf = alloca (rs->remote_packet_size);
+ p = buf;
+ *p++ = 'G';
/* remote_prepare_to_store insures that register_bytes_found gets set. */
- for (i = 0; i < register_bytes_found; i++)
- {
- *p++ = tohex ((registers[i] >> 4) & 0xf);
- *p++ = tohex (registers[i] & 0xf);
- }
- *p = '\0';
-
- remote_send (buf, PBUFSIZ);
+ bin2hex (regs, p, register_bytes_found);
+ remote_send (buf, (rs->remote_packet_size));
}
\f
static void
check_binary_download (CORE_ADDR addr)
{
+ struct remote_state *rs = get_remote_state ();
switch (remote_protocol_binary_download.support)
{
case PACKET_DISABLE:
break;
case PACKET_SUPPORT_UNKNOWN:
{
- char *buf = alloca (PBUFSIZ);
+ char *buf = alloca (rs->remote_packet_size);
char *p;
p = buf;
*p = '\0';
putpkt_binary (buf, (int) (p - buf));
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
if (buf[0] == '\0')
{
todo = min (len, max_buf_size / 2);
break;
case PACKET_SUPPORT_UNKNOWN:
- internal_error ("remote_write_bytes: bad switch");
+ internal_error (__FILE__, __LINE__,
+ "remote_write_bytes: bad internal state");
+ default:
+ internal_error (__FILE__, __LINE__, "bad switch");
}
/* Append <memaddr> */
/* Normal mode: Send target system values byte by byte, in
increasing byte addresses. Each byte is encoded as a two hex
value. */
- for (nr_bytes = 0; nr_bytes < todo; nr_bytes++)
- {
- *p++ = tohex ((myaddr[nr_bytes] >> 4) & 0xf);
- *p++ = tohex (myaddr[nr_bytes] & 0xf);
- }
- *p = '\0';
+ nr_bytes = bin2hex (myaddr, p, todo);
+ p += 2 * nr_bytes;
break;
case PACKET_SUPPORT_UNKNOWN:
- internal_error ("remote_write_bytes: bad switch");
+ internal_error (__FILE__, __LINE__,
+ "remote_write_bytes: bad internal state");
+ default:
+ internal_error (__FILE__, __LINE__, "bad switch");
}
putpkt_binary (buf, (int) (p - buf));
each byte encoded as two hex characters. */
p = buf;
- for (i = 0; i < todo; i++)
+ if ((i = hex2bin (p, myaddr, todo)) < todo)
{
- if (p[0] == 0 || p[1] == 0)
- /* Reply is short. This means that we were able to read
- only part of what we wanted to. */
- return i + (origlen - len);
- myaddr[i] = fromhex (p[0]) * 16 + fromhex (p[1]);
- p += 2;
+ /* Reply is short. This means that we were able to read
+ only part of what we wanted to. */
+ return i + (origlen - len);
}
myaddr += todo;
memaddr += todo;
/* Read or write LEN bytes from inferior memory at MEMADDR,
transferring to or from debugger address BUFFER. Write to inferior if
SHOULD_WRITE is nonzero. Returns length of data written or read; 0
- for error. */
+ for error. TARGET is unused. */
/* ARGSUSED */
static int
-remote_xfer_memory (mem_addr, buffer, mem_len, should_write, target)
- CORE_ADDR mem_addr;
- char *buffer;
- int mem_len;
- int should_write;
- struct target_ops *target; /* ignored */
+remote_xfer_memory (CORE_ADDR mem_addr, char *buffer, int mem_len,
+ int should_write, struct mem_attrib *attrib,
+ struct target_ops *target)
{
CORE_ADDR targ_addr;
int targ_len;
+ int res;
+
REMOTE_TRANSLATE_XFER_ADDRESS (mem_addr, mem_len, &targ_addr, &targ_len);
if (targ_len <= 0)
return 0;
- return dcache_xfer_memory (remote_dcache, targ_addr, buffer,
- targ_len, should_write);
+ if (should_write)
+ res = remote_write_bytes (targ_addr, buffer, targ_len);
+ else
+ res = remote_read_bytes (targ_addr, buffer, targ_len);
+
+ return res;
}
/* Enable after 4.12. */
void
-remote_search (len, data, mask, startaddr, increment, lorange, hirange
- addr_found, data_found)
- int len;
- char *data;
- char *mask;
- CORE_ADDR startaddr;
- int increment;
- CORE_ADDR lorange;
- CORE_ADDR hirange;
- CORE_ADDR *addr_found;
- char *data_found;
+remote_search (int len, char *data, char *mask, CORE_ADDR startaddr,
+ int increment, CORE_ADDR lorange, CORE_ADDR hirange,
+ CORE_ADDR *addr_found, char *data_found)
{
if (increment == -4 && len == 4)
{
long mask_long, data_long;
long data_found_long;
CORE_ADDR addr_we_found;
- char *buf = alloca (PBUFSIZ);
+ char *buf = alloca (rs->remote_packet_size);
long returned_long[2];
char *p;
data_long = extract_unsigned_integer (data, len);
sprintf (buf, "t%x:%x,%x", startaddr, data_long, mask_long);
putpkt (buf);
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
if (buf[0] == '\0')
{
/* The stub doesn't support the 't' request. We might want to
{
int ch;
- ch = SERIAL_READCHAR (remote_desc, timeout);
+ ch = serial_readchar (remote_desc, timeout);
if (ch >= 0)
return (ch & 0x7f);
}
/* Send a packet to the remote machine, with error checking. The data
- of the packet is in BUF. The string in BUF can be at most PBUFSIZ - 5
+ of the packet is in BUF. The string in BUF can be at most (rs->remote_packet_size) - 5
to account for the $, # and checksum, and for a possible /0 if we are
debugging (remote_debug) and want to print the sent packet as a string */
static int
putpkt_binary (char *buf, int cnt)
{
+ struct remote_state *rs = get_remote_state ();
int i;
unsigned char csum = 0;
char *buf2 = alloca (cnt + 6);
- long sizeof_junkbuf = PBUFSIZ;
+ long sizeof_junkbuf = (rs->remote_packet_size);
char *junkbuf = alloca (sizeof_junkbuf);
int ch;
fprintf_unfiltered (gdb_stdlog, "...");
gdb_flush (gdb_stdlog);
}
- if (SERIAL_WRITE (remote_desc, buf2, p - buf2))
+ if (serial_write (remote_desc, buf2, p - buf2))
perror_with_name ("putpkt: write failed");
/* read until either a timeout occurs (-2) or '+' is read */
break; /* Retransmit buffer */
case '$':
{
+ if (remote_debug)
+ fprintf_unfiltered (gdb_stdlog, "Packet instead of Ack, ignoring it\n");
/* It's probably an old response, and we're out of sync.
Just gobble up the packet and ignore it. */
- getpkt (junkbuf, sizeof_junkbuf, 0);
+ read_frame (junkbuf, sizeof_junkbuf);
continue; /* Now, go look for + */
}
default:
return -1;
}
else if (check_0 < 0 || check_1 < 0)
- error ("Communication error in checksum");
+ {
+ if (remote_debug)
+ fputs_filtered ("Communication error in checksum\n", gdb_stdlog);
+ return -1;
+ }
pktcsum = (fromhex (check_0) << 4) | fromhex (check_1);
if (csum == pktcsum)
if (repeat > 0 && repeat <= 255
&& bc > 0
- && bc + repeat < sizeof_buf - 1)
+ && bc + repeat - 1 < sizeof_buf - 1)
{
memset (&buf[bc], buf[bc - 1], repeat);
bc += repeat;
executing user code to stop. If FOREVER == 0, this function is
allowed to time out gracefully and return an indication of this to
the caller. */
-int
+static int
getpkt_sane (char *buf,
long sizeof_buf,
int forever)
fputstr_unfiltered (buf, 0, gdb_stdlog);
fprintf_unfiltered (gdb_stdlog, "\n");
}
- SERIAL_WRITE (remote_desc, "+", 1);
+ serial_write (remote_desc, "+", 1);
return 0;
}
/* Try the whole thing again. */
retry:
- SERIAL_WRITE (remote_desc, "-", 1);
+ serial_write (remote_desc, "-", 1);
}
/* We have tried hard enough, and just can't receive the packet. Give up. */
printf_unfiltered ("Ignoring packet error, continuing...\n");
- SERIAL_WRITE (remote_desc, "+", 1);
+ serial_write (remote_desc, "+", 1);
return 1;
}
\f
{
/* Unregister the file descriptor from the event loop. */
if (target_is_async_p ())
- SERIAL_ASYNC (remote_desc, NULL, 0);
+ serial_async (remote_desc, NULL, 0);
/* For some mysterious reason, wait_for_inferior calls kill instead of
mourn after it gets TARGET_WAITKIND_SIGNALLED. Work around it. */
static int
remote_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
{
+ struct remote_state *rs = get_remote_state ();
#ifdef REMOTE_BREAKPOINT
int val;
#endif
if (remote_protocol_Z[Z_PACKET_SOFTWARE_BP].support != PACKET_DISABLE)
{
- char *buf = alloca (PBUFSIZ);
+ char *buf = alloca (rs->remote_packet_size);
char *p = buf;
addr = remote_address_masked (addr);
sprintf (p, ",%d", bp_size);
putpkt (buf);
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
switch (packet_ok (buf, &remote_protocol_Z[Z_PACKET_SOFTWARE_BP]))
{
if (val == 0)
{
- if (TARGET_BYTE_ORDER == BIG_ENDIAN)
+ if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
val = target_write_memory (addr, (char *) big_break_insn,
sizeof big_break_insn);
else
static int
remote_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
{
+ struct remote_state *rs = get_remote_state ();
int bp_size;
if (remote_protocol_Z[Z_PACKET_SOFTWARE_BP].support != PACKET_DISABLE)
{
- char *buf = alloca (PBUFSIZ);
+ char *buf = alloca (rs->remote_packet_size);
char *p = buf;
*(p++) = 'z';
sprintf (p, ",%d", bp_size);
putpkt (buf);
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
return (buf[0] == 'E');
}
return 4;
break;
default:
- internal_error ("hw_bp_to_z: bad watchpoint type %d", type);
+ internal_error (__FILE__, __LINE__,
+ "hw_bp_to_z: bad watchpoint type %d", type);
}
}
int
remote_insert_watchpoint (CORE_ADDR addr, int len, int type)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
char *p;
enum Z_packet_type packet = watchpoint_to_Z_packet (type);
sprintf (p, ",%x", len);
putpkt (buf);
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
switch (packet_ok (buf, &remote_protocol_Z[packet]))
{
case PACKET_OK:
return 0;
}
- internal_error ("remote_insert_watchpoint: reached end of function");
+ internal_error (__FILE__, __LINE__,
+ "remote_insert_watchpoint: reached end of function");
}
/* FIXME: This function should be static and a member of the remote
int
remote_remove_watchpoint (CORE_ADDR addr, int len, int type)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
char *p;
enum Z_packet_type packet = watchpoint_to_Z_packet (type);
p += hexnumstr (p, (ULONGEST) addr);
sprintf (p, ",%x", len);
putpkt (buf);
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
switch (packet_ok (buf, &remote_protocol_Z[packet]))
{
case PACKET_OK:
return 0;
}
- internal_error ("remote_remove_watchpoint: reached end of function");
+ internal_error (__FILE__, __LINE__,
+ "remote_remove_watchpoint: reached end of function");
}
/* FIXME: This function should be static and a member of the remote
int
remote_insert_hw_breakpoint (CORE_ADDR addr, int len)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
char *p = buf;
if (remote_protocol_Z[Z_PACKET_HARDWARE_BP].support == PACKET_DISABLE)
addr = remote_address_masked (addr);
p += hexnumstr (p, (ULONGEST) addr);
- *p = '\0';
+ sprintf (p, ",%x", len);
putpkt (buf);
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
switch (packet_ok (buf, &remote_protocol_Z[Z_PACKET_HARDWARE_BP]))
{
case PACKET_OK:
return 0;
}
- internal_error ("remote_remove_watchpoint: reached end of function");
+ internal_error (__FILE__, __LINE__,
+ "remote_remove_watchpoint: reached end of function");
}
/* FIXME: This function should be static and a member of the remote
int
remote_remove_hw_breakpoint (CORE_ADDR addr, int len)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
char *p = buf;
if (remote_protocol_Z[Z_PACKET_HARDWARE_BP].support == PACKET_DISABLE)
addr = remote_address_masked (addr);
p += hexnumstr (p, (ULONGEST) addr);
- *p = '\0';
+ sprintf (p, ",%x", len);
putpkt(buf);
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
switch (packet_ok (buf, &remote_protocol_Z[Z_PACKET_HARDWARE_BP]))
{
case PACKET_OK:
return 0;
}
- internal_error ("remote_remove_watchpoint: reached end of function");
+ internal_error (__FILE__, __LINE__,
+ "remote_remove_watchpoint: reached end of function");
}
/* Some targets are only capable of doing downloads, and afterwards
static void
compare_sections_command (char *args, int from_tty)
{
+ struct remote_state *rs = get_remote_state ();
asection *s;
unsigned long host_crc, target_crc;
extern bfd *exec_bfd;
struct cleanup *old_chain;
char *tmp;
char *sectdata;
- char *sectname;
- char *buf = alloca (PBUFSIZ);
+ const char *sectname;
+ char *buf = alloca (rs->remote_packet_size);
bfd_size_type size;
bfd_vma lma;
int matched = 0;
if (size == 0)
continue; /* skip zero-length section */
- sectname = (char *) bfd_get_section_name (exec_bfd, s);
+ sectname = bfd_get_section_name (exec_bfd, s);
if (args && strcmp (args, sectname) != 0)
continue; /* not the section selected by user */
/* be clever; compute the host_crc before waiting for target reply */
sectdata = xmalloc (size);
- old_chain = make_cleanup (free, sectdata);
+ old_chain = make_cleanup (xfree, sectdata);
bfd_get_section_contents (exec_bfd, s, sectdata, 0, size);
host_crc = crc32 ((unsigned char *) sectdata, size, 0xffffffff);
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
if (buf[0] == 'E')
- error ("target memory fault, section %s, range 0x%08x -- 0x%08x",
- sectname, lma, lma + size);
+ error ("target memory fault, section %s, range 0x%s -- 0x%s",
+ sectname, paddr (lma), paddr (lma + size));
if (buf[0] != 'C')
error ("remote target does not support this operation");
static int
remote_query (int query_type, char *buf, char *outbuf, int *bufsiz)
{
+ struct remote_state *rs = get_remote_state ();
int i;
- char *buf2 = alloca (PBUFSIZ);
+ char *buf2 = alloca (rs->remote_packet_size);
char *p2 = &buf2[0];
if (!bufsiz)
error ("null pointer to remote bufer size specified");
- /* minimum outbuf size is PBUFSIZ - if bufsiz is not large enough let
+ /* minimum outbuf size is (rs->remote_packet_size) - if bufsiz is not large enough let
the caller know and return what the minimum size is */
/* Note: a zero bufsiz can be used to query the minimum buffer size */
- if (*bufsiz < PBUFSIZ)
+ if (*bufsiz < (rs->remote_packet_size))
{
- *bufsiz = PBUFSIZ;
+ *bufsiz = (rs->remote_packet_size);
return -1;
}
plus one extra in case we are debugging (remote_debug),
we have PBUFZIZ - 7 left to pack the query string */
i = 0;
- while (buf[i] && (i < (PBUFSIZ - 8)))
+ while (buf[i] && (i < ((rs->remote_packet_size) - 8)))
{
/* bad caller may have sent forbidden characters */
if ((!isprint (buf[i])) || (buf[i] == '$') || (buf[i] == '#'))
remote_rcmd (char *command,
struct ui_file *outbuf)
{
+ struct remote_state *rs = get_remote_state ();
int i;
- char *buf = alloca (PBUFSIZ);
+ char *buf = alloca (rs->remote_packet_size);
char *p = buf;
if (!remote_desc)
strcpy (buf, "qRcmd,");
p = strchr (buf, '\0');
- if ((strlen (buf) + strlen (command) * 2 + 8/*misc*/) > PBUFSIZ)
+ if ((strlen (buf) + strlen (command) * 2 + 8/*misc*/) > (rs->remote_packet_size))
error ("\"monitor\" command ``%s'' is too long\n", command);
/* Encode the actual command */
- for (i = 0; command[i]; i++)
- {
- *p++ = tohex ((command[i] >> 4) & 0xf);
- *p++ = tohex (command[i] & 0xf);
- }
- *p = '\0';
+ bin2hex (command, p, 0);
if (putpkt (buf) < 0)
error ("Communication problem with target\n");
{
/* XXX - see also tracepoint.c:remote_get_noisy_reply() */
buf[0] = '\0';
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
if (buf[0] == '\0')
error ("Target does not support this command\n");
if (buf[0] == 'O' && buf[1] != 'K')
static void
packet_command (char *args, int from_tty)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
if (!remote_desc)
error ("command can only be used with remote target");
puts_filtered ("\n");
putpkt (args);
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
puts_filtered ("received: ");
print_packet (buf);
puts_filtered ("\n");
{
int sample_thread = SAMPLE_THREAD;
- if (remote_thread_alive (sample_thread))
+ if (remote_thread_alive (pid_to_ptid (sample_thread)))
printf_filtered ("PASS: Thread alive test\n");
else
printf_filtered ("FAIL: Thread alive test\n");
#endif /* 0 */
+/* Convert a thread ID to a string. Returns the string in a static
+ buffer. */
+
+static char *
+remote_pid_to_str (ptid_t ptid)
+{
+ static char buf[30];
+
+ sprintf (buf, "Thread %d", PIDGET (ptid));
+ return buf;
+}
+
static void
init_remote_ops (void)
{
remote_ops.to_mourn_inferior = remote_mourn;
remote_ops.to_thread_alive = remote_thread_alive;
remote_ops.to_find_new_threads = remote_threads_info;
+ remote_ops.to_pid_to_str = remote_pid_to_str;
remote_ops.to_extra_thread_info = remote_threads_extra_info;
remote_ops.to_stop = remote_stop;
remote_ops.to_query = remote_query;
static void
remote_info_process (char *args, int from_tty)
{
- char *buf = alloca (PBUFSIZ);
+ struct remote_state *rs = get_remote_state ();
+ char *buf = alloca (rs->remote_packet_size);
if (remote_desc == 0)
error ("Command can only be used when connected to the remote target.");
putpkt ("qfProcessInfo");
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
if (buf[0] == 0)
return; /* Silently: target does not support this feature. */
{
remote_console_output (&buf[1]);
putpkt ("qsProcessInfo");
- getpkt (buf, PBUFSIZ, 0);
+ getpkt (buf, (rs->remote_packet_size), 0);
}
}
remote_cisco_open (char *name, int from_tty)
{
if (name == 0)
- error (
- "To open a remote debug connection, you need to specify what \n\
-device is attached to the remote system (e.g. host:port).");
+ error ("To open a remote debug connection, you need to specify what \n"
+ "device is attached to the remote system (e.g. host:port).");
/* See FIXME above */
wait_forever_enabled_p = 1;
unpush_target (&remote_cisco_ops);
- if (!remote_dcache)
- remote_dcache = dcache_init (remote_read_bytes, remote_write_bytes);
- else
- dcache_invd (remote_dcache);
-
- remote_desc = SERIAL_OPEN (name);
+ remote_desc = serial_open (name);
if (!remote_desc)
perror_with_name (name);
*/
baud_rate = (baud_rate > 0) ? baud_rate : 9600;
- if (SERIAL_SETBAUDRATE (remote_desc, baud_rate))
+ if (serial_setbaudrate (remote_desc, baud_rate))
{
- SERIAL_CLOSE (remote_desc);
+ serial_close (remote_desc);
perror_with_name (name);
}
- SERIAL_RAW (remote_desc);
+ serial_raw (remote_desc);
/* If there is something sitting in the buffer we might take it as a
response to a command, which would be bad. */
- SERIAL_FLUSH_INPUT (remote_desc);
+ serial_flush_input (remote_desc);
if (from_tty)
{
flag indicating that a target is active. These functions should
be split out into seperate variables, especially since GDB will
someday have a notion of debugging several processes. */
- inferior_pid = MAGIC_NULL_PID;
+ inferior_ptid = pid_to_ptid (MAGIC_NULL_PID);
/* Start the remote connection; if error (0), discard this target. */
}
minitelnet_return;
-/* shared between readsocket() and readtty() */
-static char *tty_input;
+/* Shared between readsocket() and readtty(). The size is arbitrary,
+ however all targets are known to support a 400 character packet. */
+static char tty_input[400];
static int escape_count;
static int echo_check;
{
if (tty_input[echo_check] == data)
{
+ gdb_assert (echo_check <= sizeof (tty_input));
echo_check++; /* Character matched user input: */
continue; /* Continue without echoing it. */
}
/* Make this a zero terminated string and write it out */
tty_input[tty_bytecount] = 0;
- if (SERIAL_WRITE (remote_desc, tty_input, tty_bytecount))
+ if (serial_write (remote_desc, tty_input, tty_bytecount))
{
perror_with_name ("readtty: write failed");
return FATAL_ERROR;
FD_ZERO (&input);
FD_SET (fileno (stdin), &input);
- FD_SET (DEPRECATED_SERIAL_FD (remote_desc), &input);
+ FD_SET (deprecated_serial_fd (remote_desc), &input);
status = select (tablesize, &input, 0, 0, 0);
if ((status == -1) && (errno != EINTR))
if (query ("Interrupt GDB? "))
{
printf_filtered ("Interrupted by user.\n");
- return_to_top_level (RETURN_QUIT);
+ throw_exception (RETURN_QUIT);
}
quit_count = 0;
}
quit_flag = 0;
if (remote_break)
- SERIAL_SEND_BREAK (remote_desc);
+ serial_send_break (remote_desc);
else
- SERIAL_WRITE (remote_desc, "\003", 1);
+ serial_write (remote_desc, "\003", 1);
continue;
}
}
}
-static int
-remote_cisco_wait (int pid, struct target_waitstatus *status)
+static ptid_t
+remote_cisco_wait (ptid_t ptid, struct target_waitstatus *status)
{
if (minitelnet () != ENTER_DEBUG)
{
error ("Debugging session terminated by protocol error");
}
putpkt ("?");
- return remote_wait (pid, status);
+ return remote_wait (ptid, status);
}
static void
remote_cisco_ops.to_mourn_inferior = remote_cisco_mourn;
remote_cisco_ops.to_thread_alive = remote_thread_alive;
remote_cisco_ops.to_find_new_threads = remote_threads_info;
- remote_ops.to_extra_thread_info = remote_threads_extra_info;
+ remote_cisco_ops.to_pid_to_str = remote_pid_to_str;
+ remote_cisco_ops.to_extra_thread_info = remote_threads_extra_info;
remote_cisco_ops.to_stratum = process_stratum;
remote_cisco_ops.to_has_all_memory = 1;
remote_cisco_ops.to_has_memory = 1;
remote_can_async_p (void)
{
/* We're async whenever the serial device is. */
- return (current_target.to_async_mask_value) && SERIAL_CAN_ASYNC_P (remote_desc);
+ return (current_target.to_async_mask_value) && serial_can_async_p (remote_desc);
}
static int
remote_is_async_p (void)
{
/* We're async whenever the serial device is. */
- return (current_target.to_async_mask_value) && SERIAL_IS_ASYNC_P (remote_desc);
+ return (current_target.to_async_mask_value) && serial_is_async_p (remote_desc);
}
/* Pass the SERIAL event on and up to the client. One day this code
static serial_event_ftype remote_async_serial_handler;
static void
-remote_async_serial_handler (serial_t scb, void *context)
+remote_async_serial_handler (struct serial *scb, void *context)
{
/* Don't propogate error information up to the client. Instead let
the client find out about the error by querying the target. */
remote_async (void (*callback) (enum inferior_event_type event_type, void *context), void *context)
{
if (current_target.to_async_mask_value == 0)
- internal_error ("Calling remote_async when async is masked");
+ internal_error (__FILE__, __LINE__,
+ "Calling remote_async when async is masked");
if (callback != NULL)
{
- SERIAL_ASYNC (remote_desc, remote_async_serial_handler, NULL);
+ serial_async (remote_desc, remote_async_serial_handler, NULL);
async_client_callback = callback;
async_client_context = context;
}
else
- SERIAL_ASYNC (remote_desc, NULL, NULL);
+ serial_async (remote_desc, NULL, NULL);
}
/* Target async and target extended-async.
remote_async_ops.to_mourn_inferior = remote_async_mourn;
remote_async_ops.to_thread_alive = remote_thread_alive;
remote_async_ops.to_find_new_threads = remote_threads_info;
- remote_ops.to_extra_thread_info = remote_threads_extra_info;
+ remote_async_ops.to_pid_to_str = remote_pid_to_str;
+ remote_async_ops.to_extra_thread_info = remote_threads_extra_info;
remote_async_ops.to_stop = remote_stop;
remote_async_ops.to_query = remote_query;
remote_async_ops.to_rcmd = remote_rcmd;
static void
set_remote_cmd (char *args, int from_tty)
{
-
}
static void
show_remote_cmd (char *args, int from_tty)
{
+
show_remote_protocol_Z_packet_cmd (args, from_tty);
+ show_remote_protocol_e_packet_cmd (args, from_tty);
+ show_remote_protocol_E_packet_cmd (args, from_tty);
show_remote_protocol_P_packet_cmd (args, from_tty);
+ show_remote_protocol_qSymbol_packet_cmd (args, from_tty);
show_remote_protocol_binary_download_cmd (args, from_tty);
}
static void
build_remote_gdbarch_data (void)
{
- build_remote_packet_sizes ();
+ remote_address_size = TARGET_ADDR_BIT;
+}
+
+/* Saved pointer to previous owner of the new_objfile event. */
+static void (*remote_new_objfile_chain) (struct objfile *);
- /* Cisco stuff */
- tty_input = xmalloc (PBUFSIZ);
- remote_address_size = TARGET_PTR_BIT;
+/* Function to be called whenever a new objfile (shlib) is detected. */
+static void
+remote_new_objfile (struct objfile *objfile)
+{
+ if (remote_desc != 0) /* Have a remote connection */
+ {
+ remote_check_symbols (objfile);
+ }
+ /* Call predecessor on chain, if any. */
+ if (remote_new_objfile_chain != 0 &&
+ remote_desc == 0)
+ remote_new_objfile_chain (objfile);
}
void
struct cmd_list_element *tmpcmd;
/* architecture specific data */
- build_remote_gdbarch_data ();
- register_gdbarch_swap (&tty_input, sizeof (&tty_input), NULL);
- register_remote_packet_sizes ();
+ remote_gdbarch_data_handle = register_gdbarch_data (init_remote_state,
+ free_remote_state);
+
+ /* Old tacky stuff. NOTE: This comes after the remote protocol so
+ that the remote protocol has been initialized. */
register_gdbarch_swap (&remote_address_size,
sizeof (&remote_address_size), NULL);
register_gdbarch_swap (NULL, 0, build_remote_gdbarch_data);
init_remote_cisco_ops ();
add_target (&remote_cisco_ops);
+ /* Hook into new objfile notification. */
+ remote_new_objfile_chain = target_new_objfile_hook;
+ target_new_objfile_hook = remote_new_objfile;
+
#if 0
init_remote_threadtests ();
#endif
&maintenancelist);
add_show_from_set
- (add_set_cmd ("remotebreak", no_class,
- var_boolean, (char *) &remote_break,
- "Set whether to send break if interrupted.\n",
- &setlist),
+ (add_set_boolean_cmd ("remotebreak", no_class, &remote_break,
+ "Set whether to send break if interrupted.\n",
+ &setlist),
&showlist);
/* Install commands for configuring memory read/write packets. */
add_cmd ("remotewritesize", no_class, set_memory_write_packet_size,
"Set the maximum number of bytes per memory write packet (deprecated).\n",
&setlist);
- add_cmd ("remotewritesize", no_class, set_memory_write_packet_size,
+ add_cmd ("remotewritesize", no_class, show_memory_write_packet_size,
"Show the maximum number of bytes per memory write packet (deprecated).\n",
&showlist);
add_cmd ("memory-write-packet-size", no_class,
add_info ("remote-process", remote_info_process,
"Query the remote system for process info.");
+ add_packet_config_cmd (&remote_protocol_qSymbol,
+ "qSymbol", "symbol-lookup",
+ set_remote_protocol_qSymbol_packet_cmd,
+ show_remote_protocol_qSymbol_packet_cmd,
+ &remote_set_cmdlist, &remote_show_cmdlist,
+ 0);
+
+ add_packet_config_cmd (&remote_protocol_e,
+ "e", "step-over-range",
+ set_remote_protocol_e_packet_cmd,
+ show_remote_protocol_e_packet_cmd,
+ &remote_set_cmdlist, &remote_show_cmdlist,
+ 0);
+ /* Disable by default. The ``e'' packet has nasty interactions with
+ the threading code - it relies on global state. */
+ remote_protocol_e.detect = CMD_AUTO_BOOLEAN_FALSE;
+ update_packet_config (&remote_protocol_e);
+
+ add_packet_config_cmd (&remote_protocol_E,
+ "E", "step-over-range-w-signal",
+ set_remote_protocol_E_packet_cmd,
+ show_remote_protocol_E_packet_cmd,
+ &remote_set_cmdlist, &remote_show_cmdlist,
+ 0);
+ /* Disable by default. The ``e'' packet has nasty interactions with
+ the threading code - it relies on global state. */
+ remote_protocol_E.detect = CMD_AUTO_BOOLEAN_FALSE;
+ update_packet_config (&remote_protocol_E);
+
add_packet_config_cmd (&remote_protocol_P,
"P", "set-register",
set_remote_protocol_P_packet_cmd,
&remote_Z_packet_detect,
"\
Set use of remote protocol `Z' packets", &remote_set_cmdlist);
- tmpcmd->function.sfunc = set_remote_protocol_Z_packet_cmd;
+ set_cmd_sfunc (tmpcmd, set_remote_protocol_Z_packet_cmd);
add_cmd ("Z-packet", class_obscure, show_remote_protocol_Z_packet_cmd,
"Show use of remote protocol `Z' packets ",
&remote_show_cmdlist);
projects / deliverable / binutils-gdb.git / blobdiff