You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "frame.h"
#include "symtab.h"
#include "complaints.h"
#include "gdbcmd.h"
+#include "bfd.h" /* Required by objfiles.h. */
+#include "symfile.h" /* Required by objfiles.h. */
+#include "objfiles.h"
+#include "gdb-stabs.h"
-#include <string.h>
+#include "gdb_string.h"
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include <symtab.h>
+/* Maximum number of bytes to transfer in a single
+ PTRACE_{READ,WRITE}DATA request. */
+#define VX_MEMXFER_MAX 4096
+
+extern void vx_read_register ();
+extern void vx_write_register ();
extern void symbol_file_command ();
extern int stop_soon_quietly; /* for wait_for_inferior */
+static int net_step ();
static int net_ptrace_clnt_call (); /* Forward decl */
static enum clnt_stat net_clnt_call (); /* Forward decl */
extern struct target_ops vx_ops, vx_run_ops; /* Forward declaration */
/* Nonzero means target that is being debugged remotely has a floating
point processor. */
-static int target_has_fp;
+int target_has_fp;
/* Default error message when the network is forking up. */
static int
net_load (filename, pTextAddr, pDataAddr, pBssAddr)
- char *filename;
- CORE_ADDR *pTextAddr;
- CORE_ADDR *pDataAddr;
- CORE_ADDR *pBssAddr;
- {
- enum clnt_stat status;
- struct ldfile ldstruct;
- struct timeval load_timeout;
-
- memset ((char *) &ldstruct, '\0', sizeof (ldstruct));
+ char *filename;
+ CORE_ADDR *pTextAddr;
+ CORE_ADDR *pDataAddr;
+ CORE_ADDR *pBssAddr;
+{
+ enum clnt_stat status;
+ struct ldfile ldstruct;
+ struct timeval load_timeout;
- /* We invoke clnt_call () here directly, instead of through
- net_clnt_call (), because we need to set a large timeout value.
- The load on the target side can take quite a while, easily
- more than 10 seconds. The user can kill this call by typing
- CTRL-C if there really is a problem with the load.
+ memset ((char *) &ldstruct, '\0', sizeof (ldstruct));
- Do not change the tv_sec value without checking -- select() imposes
- a limit of 10**8 on it for no good reason that I can see... */
+ /* We invoke clnt_call () here directly, instead of through
+ net_clnt_call (), because we need to set a large timeout value.
+ The load on the target side can take quite a while, easily
+ more than 10 seconds. The user can kill this call by typing
+ CTRL-C if there really is a problem with the load.
- load_timeout.tv_sec = 99999999; /* A large number, effectively inf. */
- load_timeout.tv_usec = 0;
+ Do not change the tv_sec value without checking -- select() imposes
+ a limit of 10**8 on it for no good reason that I can see... */
+
+ load_timeout.tv_sec = 99999999; /* A large number, effectively inf. */
+ load_timeout.tv_usec = 0;
- status = clnt_call (pClient, VX_LOAD, xdr_wrapstring, &filename, xdr_ldfile,
- &ldstruct, load_timeout);
+ status = clnt_call (pClient, VX_LOAD, xdr_wrapstring, &filename, xdr_ldfile,
+ &ldstruct, load_timeout);
- if (status == RPC_SUCCESS)
- {
- if (*ldstruct.name == 0) /* load failed on VxWorks side */
- return -1;
- *pTextAddr = ldstruct.txt_addr;
- *pDataAddr = ldstruct.data_addr;
- *pBssAddr = ldstruct.bss_addr;
- return 0;
- }
- else
- return -1;
+ if (status == RPC_SUCCESS)
+ {
+ if (*ldstruct.name == 0) /* load failed on VxWorks side */
+ return -1;
+ *pTextAddr = ldstruct.txt_addr;
+ *pDataAddr = ldstruct.data_addr;
+ *pBssAddr = ldstruct.bss_addr;
+ return 0;
}
-
+ else
+ return -1;
+}
+
/* returns 0 if successful, errno if RPC failed or VxWorks complains. */
static int
net_break (addr, procnum)
- int addr;
- u_long procnum;
- {
- enum clnt_stat status;
- int break_status;
- Rptrace ptrace_in; /* XXX This is stupid. It doesn't need to be a ptrace
- structure. How about something smaller? */
+ int addr;
+ u_long procnum;
+{
+ enum clnt_stat status;
+ int break_status;
+ Rptrace ptrace_in; /* XXX This is stupid. It doesn't need to be a ptrace
+ structure. How about something smaller? */
+
+ memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in));
+ break_status = 0;
- memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in));
- break_status = 0;
+ ptrace_in.addr = addr;
+ ptrace_in.pid = inferior_pid;
- ptrace_in.addr = addr;
- ptrace_in.pid = inferior_pid;
+ status = net_clnt_call (procnum, xdr_rptrace, &ptrace_in, xdr_int,
+ &break_status);
- status = net_clnt_call (procnum, xdr_rptrace, &ptrace_in, xdr_int,
- &break_status);
+ if (status != RPC_SUCCESS)
+ return errno;
- if (status != RPC_SUCCESS)
- return errno;
+ if (break_status == -1)
+ return ENOMEM;
+ return break_status; /* probably (FIXME) zero */
+}
- if (break_status == -1)
- return ENOMEM;
- return break_status; /* probably (FIXME) zero */
- }
-
/* returns 0 if successful, errno otherwise */
static int
vx_insert_breakpoint (addr)
- int addr;
- {
- return net_break (addr, VX_BREAK_ADD);
- }
+ int addr;
+{
+ return net_break (addr, VX_BREAK_ADD);
+}
/* returns 0 if successful, errno otherwise */
static int
vx_remove_breakpoint (addr)
- int addr;
- {
- return net_break (addr, VX_BREAK_DELETE);
- }
+ int addr;
+{
+ return net_break (addr, VX_BREAK_DELETE);
+}
/* Start an inferior process and sets inferior_pid to its pid.
EXEC_FILE is the file to run.
memset ((char *) pEvent, '\0', sizeof (RDB_EVENT));
pid = inferior_pid;
- status = net_clnt_call (PROCESS_WAIT, xdr_int, &pid, xdr_RDB_EVENT, pEvent);
+ status = net_clnt_call (PROCESS_WAIT, xdr_int, &pid, xdr_RDB_EVENT,
+ pEvent);
- return (status == RPC_SUCCESS)? pEvent->status: -1;
+ /* return (status == RPC_SUCCESS)? pEvent->status: -1; */
+ if (status == RPC_SUCCESS)
+ return ((pEvent->status) ? 1 : 0);
+ else if (status == RPC_TIMEDOUT)
+ return (1);
+ else
+ return (-1);
}
/* Suspend the remote task.
static int
net_quit ()
{
- int pid;
- int quit_status;
- enum clnt_stat status;
+ int pid;
+ int quit_status;
+ enum clnt_stat status;
- quit_status = 0;
+ quit_status = 0;
- /* don't let rdbTask suspend itself by passing a pid of 0 */
+ /* don't let rdbTask suspend itself by passing a pid of 0 */
- if ((pid = inferior_pid) == 0)
- return -1;
+ if ((pid = inferior_pid) == 0)
+ return -1;
- status = net_clnt_call (VX_TASK_SUSPEND, xdr_int, &pid, xdr_int,
- &quit_status);
+ status = net_clnt_call (VX_TASK_SUSPEND, xdr_int, &pid, xdr_int,
+ &quit_status);
- return (status == RPC_SUCCESS)? quit_status: -1;
+ return (status == RPC_SUCCESS)? quit_status: -1;
}
/* Read a register or registers from the remote system. */
-static void
-vx_read_register (regno)
- int regno;
+void
+net_read_registers (reg_buf, len, procnum)
+ char *reg_buf;
+ int len;
+ u_long procnum;
{
int status;
Rptrace ptrace_in;
Ptrace_return ptrace_out;
- C_bytes in_data;
C_bytes out_data;
- extern char registers[];
+ char message[100];
memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in));
memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out));
- /* FIXME, eventually only get the ones we need. */
- registers_fetched ();
-
+ /* Initialize RPC input argument structure. */
+
ptrace_in.pid = inferior_pid;
+ ptrace_in.info.ttype = NOINFO;
+
+ /* Initialize RPC return value structure. */
+
+ out_data.bytes = reg_buf;
+ out_data.len = len;
ptrace_out.info.more_data = (caddr_t) &out_data;
- out_data.len = VX_NUM_REGS * REGISTER_RAW_SIZE (0);
- out_data.bytes = (caddr_t) registers;
-
- status = net_ptrace_clnt_call (PTRACE_GETREGS, &ptrace_in, &ptrace_out);
+
+ /* Call RPC; take an error exit if appropriate. */
+
+ status = net_ptrace_clnt_call (procnum, &ptrace_in, &ptrace_out);
if (status)
error (rpcerr);
if (ptrace_out.status == -1)
{
errno = ptrace_out.errno;
- perror_with_name ("net_ptrace_clnt_call(PTRACE_GETREGS)");
- }
-
-#ifdef VX_SIZE_FPREGS
- /* If the target has floating point registers, fetch them.
- Otherwise, zero the floating point register values in
- registers[] for good measure, even though we might not
- need to. */
-
- if (target_has_fp)
- {
- ptrace_in.pid = inferior_pid;
- ptrace_out.info.more_data = (caddr_t) &out_data;
- out_data.len = VX_SIZE_FPREGS;
- out_data.bytes = (caddr_t) ®isters[REGISTER_BYTE (FP0_REGNUM)];
-
- status = net_ptrace_clnt_call (PTRACE_GETFPREGS, &ptrace_in, &ptrace_out);
- if (status)
- error (rpcerr);
- if (ptrace_out.status == -1)
- {
- errno = ptrace_out.errno;
- perror_with_name ("net_ptrace_clnt_call(PTRACE_GETFPREGS)");
- }
+ sprintf (message, "reading %s registers", (procnum == PTRACE_GETREGS)
+ ? "general-purpose"
+ : "floating-point");
+ perror_with_name (message);
}
- else
- {
- memset (®isters[REGISTER_BYTE (FP0_REGNUM)], '\0', VX_SIZE_FPREGS);
- }
-#endif /* VX_SIZE_FPREGS */
}
-/* Prepare to store registers. Since we will store all of them,
- read out their current values now. */
+/* Write register values to a VxWorks target. REG_BUF points to a buffer
+ containing the raw register values, LEN is the length of REG_BUF in
+ bytes, and PROCNUM is the RPC procedure number (PTRACE_SETREGS or
+ PTRACE_SETFPREGS). An error exit is taken if the RPC call fails or
+ if an error status is returned by the remote debug server. This is
+ a utility routine used by vx_write_register (). */
-static void
-vx_prepare_to_store ()
-{
- /* Fetch all registers, if any of them are not yet fetched. */
- read_register_bytes (0, NULL, REGISTER_BYTES);
-}
-
-
-/* Store our register values back into the inferior.
- If REGNO is -1, do this for all registers.
- Otherwise, REGNO specifies which register (so we can save time). */
- /* FIXME, look at REGNO to save time here */
-
-static void
-vx_write_register (regno)
- int regno;
+void
+net_write_registers (reg_buf, len, procnum)
+ char *reg_buf;
+ int len;
+ u_long procnum;
{
- C_bytes in_data;
- C_bytes out_data;
- extern char registers[];
int status;
Rptrace ptrace_in;
Ptrace_return ptrace_out;
+ C_bytes in_data;
+ char message[100];
memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in));
memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out));
+ /* Initialize RPC input argument structure. */
+
+ in_data.bytes = reg_buf;
+ in_data.len = len;
+
ptrace_in.pid = inferior_pid;
- ptrace_in.info.ttype = DATA;
+ ptrace_in.info.ttype = DATA;
ptrace_in.info.more_data = (caddr_t) &in_data;
- in_data.bytes = registers;
+ /* Call RPC; take an error exit if appropriate. */
- in_data.len = VX_NUM_REGS * REGISTER_SIZE;
-
- /* XXX change second param to be a proc number */
- status = net_ptrace_clnt_call (PTRACE_SETREGS, &ptrace_in, &ptrace_out);
+ status = net_ptrace_clnt_call (procnum, &ptrace_in, &ptrace_out);
if (status)
- error (rpcerr);
+ error (rpcerr);
if (ptrace_out.status == -1)
{
errno = ptrace_out.errno;
- perror_with_name ("net_ptrace_clnt_call(PTRACE_SETREGS)");
+ sprintf (message, "writing %s registers", (procnum == PTRACE_SETREGS)
+ ? "general-purpose"
+ : "floating-point");
+ perror_with_name (message);
}
+}
-#ifdef VX_SIZE_FPREGS
- /* Store floating point registers if the target has them. */
-
- if (target_has_fp)
- {
- ptrace_in.pid = inferior_pid;
- ptrace_in.info.ttype = DATA;
- ptrace_in.info.more_data = (caddr_t) &in_data;
-
-
- in_data.bytes = ®isters[REGISTER_BYTE (FP0_REGNUM)];
- in_data.len = VX_SIZE_FPREGS;
+/* Prepare to store registers. Since we will store all of them,
+ read out their current values now. */
- status = net_ptrace_clnt_call (PTRACE_SETFPREGS, &ptrace_in, &ptrace_out);
- if (status)
- error (rpcerr);
- if (ptrace_out.status == -1)
- {
- errno = ptrace_out.errno;
- perror_with_name ("net_ptrace_clnt_call(PTRACE_SETFPREGS)");
- }
- }
-#endif /* VX_SIZE_FPREGS */
+static void
+vx_prepare_to_store ()
+{
+ /* Fetch all registers, if any of them are not yet fetched. */
+ read_register_bytes (0, NULL, REGISTER_BYTES);
}
/* Copy LEN bytes to or from remote inferior's memory starting at MEMADDR
Rptrace ptrace_in;
Ptrace_return ptrace_out;
C_bytes data;
+ enum ptracereq request;
+ int nleft, nxfer;
memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in));
memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out));
data.bytes = (caddr_t) myaddr; /* Where from */
data.len = len; /* How many bytes (again, for XDR) */
-
- /* XXX change second param to be a proc number */
- status = net_ptrace_clnt_call (PTRACE_WRITEDATA, &ptrace_in, &ptrace_out);
+ request = PTRACE_WRITEDATA;
}
else
{
ptrace_out.info.more_data = (caddr_t) &data;
- data.bytes = myaddr; /* Where to */
- data.len = len; /* How many (again, for XDR) */
-
- /* XXX change second param to be a proc number */
- status = net_ptrace_clnt_call (PTRACE_READDATA, &ptrace_in, &ptrace_out);
+ request = PTRACE_READDATA;
}
+ /* Loop until the entire request has been satisfied, transferring
+ at most VX_MEMXFER_MAX bytes per iteration. Break from the loop
+ if an error status is returned by the remote debug server. */
- if (status)
- error (rpcerr);
- if (ptrace_out.status == -1)
+ nleft = len;
+ status = 0;
+
+ while (nleft > 0 && status == 0)
{
- return 0; /* No bytes moved */
+ nxfer = min (nleft, VX_MEMXFER_MAX);
+
+ ptrace_in.addr = (int) memaddr;
+ ptrace_in.data = nxfer;
+ data.bytes = (caddr_t) myaddr;
+ data.len = nxfer;
+
+ /* Request a block from the remote debug server; if RPC fails,
+ report an error and return to debugger command level. */
+
+ if (net_ptrace_clnt_call (request, &ptrace_in, &ptrace_out))
+ error (rpcerr);
+
+ status = ptrace_out.status;
+ if (status == 0)
+ {
+ memaddr += nxfer;
+ myaddr += nxfer;
+ nleft -= nxfer;
+ }
+ else
+ {
+ /* A target-side error has ocurred. Set errno to the error
+ code chosen by the target so that a later perror () will
+ say something meaningful. */
+
+ errno = ptrace_out.errno;
+ }
}
- return len; /* Moved *all* the bytes */
+
+ /* Return the number of bytes transferred. */
+
+ return (len - nleft);
}
static void
vx_run_files_info ()
{
printf_unfiltered ("\tRunning %s VxWorks process %s",
- vx_running? "child": "attached",
- local_hex_string((unsigned long) inferior_pid));
+ vx_running ? "child" : "attached",
+ local_hex_string (inferior_pid));
if (vx_running)
printf_unfiltered (", function `%s'", vx_running);
printf_unfiltered(".\n");
int status;
Rptrace ptrace_in;
Ptrace_return ptrace_out;
+ CORE_ADDR cont_addr;
if (pid == -1)
pid = inferior_pid;
if (siggnal != 0 && siggnal != stop_signal)
error ("Cannot send signals to VxWorks processes");
+ /* Set CONT_ADDR to the address at which we are continuing,
+ or to 1 if we are continuing from where the program stopped.
+ This conforms to traditional ptrace () usage, but at the same
+ time has special meaning for the VxWorks remote debug server.
+ If the address is not 1, the server knows that the target
+ program is jumping to a new address, which requires special
+ handling if there is a breakpoint at the new address. */
+
+ cont_addr = read_register (PC_REGNUM);
+ if (cont_addr == stop_pc)
+ cont_addr = 1;
+
memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in));
memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out));
ptrace_in.pid = pid;
- ptrace_in.addr = 1; /* Target side insists on this, or it panics. */
+ ptrace_in.addr = cont_addr; /* Target side insists on this, or it panics. */
+
+ if (step)
+ status = net_step();
+ else
+ status = net_ptrace_clnt_call (PTRACE_CONT, &ptrace_in, &ptrace_out);
- /* XXX change second param to be a proc number */
- status = net_ptrace_clnt_call (step? PTRACE_SINGLESTEP: PTRACE_CONT,
- &ptrace_in, &ptrace_out);
if (status)
- error (rpcerr);
+ error (rpcerr);
if (ptrace_out.status == -1)
{
errno = ptrace_out.errno;
}
\f
+static void vx_add_symbols PARAMS ((char *, int, CORE_ADDR, CORE_ADDR,
+ CORE_ADDR));
+
+struct find_sect_args {
+ CORE_ADDR text_start;
+ CORE_ADDR data_start;
+ CORE_ADDR bss_start;
+};
+
+static void find_sect PARAMS ((bfd *, asection *, void *));
+
+static void
+find_sect (abfd, sect, obj)
+ bfd *abfd;
+ asection *sect;
+ PTR obj;
+{
+ struct find_sect_args *args = (struct find_sect_args *)obj;
+
+ if (bfd_get_section_flags (abfd, sect) & (SEC_CODE & SEC_READONLY))
+ args->text_start = bfd_get_section_vma (abfd, sect);
+ else if (bfd_get_section_flags (abfd, sect) & SEC_ALLOC)
+ {
+ if (bfd_get_section_flags (abfd, sect) & SEC_LOAD)
+ {
+ /* Exclude .ctor and .dtor sections which have SEC_CODE set but not
+ SEC_DATA. */
+ if (bfd_get_section_flags (abfd, sect) & SEC_DATA)
+ args->data_start = bfd_get_section_vma (abfd, sect);
+ }
+ else
+ args->bss_start = bfd_get_section_vma (abfd, sect);
+ }
+}
+
+static void
+vx_add_symbols (name, from_tty, text_addr, data_addr, bss_addr)
+ char *name;
+ int from_tty;
+ CORE_ADDR text_addr;
+ CORE_ADDR data_addr;
+ CORE_ADDR bss_addr;
+{
+ struct section_offsets *offs;
+ struct objfile *objfile;
+ struct find_sect_args ss;
+
+ /* It might be nice to suppress the breakpoint_re_set which happens here
+ because we are going to do one again after the objfile_relocate. */
+ objfile = symbol_file_add (name, from_tty, 0, 0, 0, 0);
+
+ /* This is a (slightly cheesy) way of superceding the old symbols. A less
+ cheesy way would be to find the objfile with the same name and
+ free_objfile it. */
+ objfile_to_front (objfile);
+
+ offs = (struct section_offsets *)
+ alloca (sizeof (struct section_offsets)
+ + objfile->num_sections * sizeof (offs->offsets));
+ memcpy (offs, objfile->section_offsets,
+ sizeof (struct section_offsets)
+ + objfile->num_sections * sizeof (offs->offsets));
+
+ ss.text_start = 0;
+ ss.data_start = 0;
+ ss.bss_start = 0;
+ bfd_map_over_sections (objfile->obfd, find_sect, &ss);
+
+ /* Both COFF and b.out frontends use these SECT_OFF_* values. */
+ ANOFFSET (offs, SECT_OFF_TEXT) = text_addr - ss.text_start;
+ ANOFFSET (offs, SECT_OFF_DATA) = data_addr - ss.data_start;
+ ANOFFSET (offs, SECT_OFF_BSS) = bss_addr - ss.bss_start;
+ objfile_relocate (objfile, offs);
+
+ /* Need to do this *after* things are relocated. */
+ breakpoint_re_set ();
+}
+
/* This function allows the addition of incrementally linked object files. */
static void
vx_load_command (arg_string, from_tty)
- char* arg_string;
+ char *arg_string;
int from_tty;
{
CORE_ADDR text_addr;
CORE_ADDR data_addr;
CORE_ADDR bss_addr;
-
+
if (arg_string == 0)
error ("The load command takes a file name");
dont_repeat ();
+ /* Refuse to load the module if a debugged task is running. Doing so
+ can have a number of unpleasant consequences to the running task. */
+
+ if (inferior_pid != 0 && target_has_execution)
+ {
+ if (query ("You may not load a module while the target task is running.\n\
+Kill the target task? "))
+ target_kill ();
+ else
+ error ("Load cancelled.");
+ }
+
QUIT;
immediate_quit++;
if (net_load (arg_string, &text_addr, &data_addr, &bss_addr) == -1)
error ("Load failed on target machine");
immediate_quit--;
- /* FIXME, for now we ignore data_addr and bss_addr. */
- symbol_file_add (arg_string, from_tty, text_addr, 0, 0, 0);
+ vx_add_symbols (arg_string, from_tty, text_addr, data_addr, bss_addr);
+
+ /* Getting new symbols may change our opinion about what is
+ frameless. */
+ reinit_frame_cache ();
}
-#ifdef FIXME /* Not ready for prime time */
/* Single step the target program at the source or machine level.
Takes an error exit if rpc fails.
Returns -1 if remote single-step operation fails, else 0. */
else
error (rpcerr);
}
-#endif
/* Emulate ptrace using RPC calls to the VxWorks target system.
Returns nonzero (-1) if RPC status to VxWorks is bad, 0 otherwise. */
status = net_clnt_call (VX_SYMBOL_INQ, xdr_wrapstring, &name,
xdr_SYMBOL_ADDR, &symbolAddr);
- if (status != RPC_SUCCESS) {
+ if (status != RPC_SUCCESS)
+ {
complain (&cant_contact_target);
return -1;
- }
+ }
*pAddr = symbolAddr.addr;
return symbolAddr.status;
status = net_clnt_call (VX_FP_INQUIRE, xdr_void, 0, xdr_bool, &fp);
if (status != RPC_SUCCESS)
- error (rpcerr);
+ error (rpcerr);
return (int) fp;
}
struct sockaddr_in destAddr;
struct hostent *destHost;
unsigned long addr;
-
+
/* Get the internet address for the given host. Allow a numeric
IP address or a hostname. */
{
destHost = (struct hostent *) gethostbyname (host);
if (destHost == NULL)
+ /* FIXME: Probably should include hostname here in quotes.
+ For example if the user types "target vxworks vx960 " it should
+ say "Invalid host `vx960 '." not just "Invalid hostname". */
error ("Invalid hostname. Couldn't find remote host address.");
addr = * (unsigned long *) destHost->h_addr;
}
ptraceSock = RPC_ANYSOCK;
pClient = clnttcp_create (&destAddr, RDBPROG, RDBVERS, &ptraceSock, 0, 0);
- /* FIXME, here is where we deal with different version numbers of the proto */
-
+ /* FIXME, here is where we deal with different version numbers of the
+ proto */
+
if (pClient == NULL)
{
clnt_pcreateerror ("\tnet_connect");
select_timeout.tv_sec = 0;
select_timeout.tv_usec = ms * 1000;
- status = select (0, (fd_set *) 0, (fd_set *) 0, (fd_set *) 0, &select_timeout);
+ status = select (0, (fd_set *) 0, (fd_set *) 0, (fd_set *) 0,
+ &select_timeout);
if (status < 0 && errno != EINTR)
perror_with_name ("select");
}
-/* Wait for control to return from inferior to debugger.
- If inferior gets a signal, we may decide to start it up again
- instead of returning. That is why there is a loop in this function.
- When this function actually returns it means the inferior
- should be left stopped and GDB should read more commands. */
-
-/* For network debugging with VxWorks.
- * VxWorks knows when tasks hit breakpoints, receive signals, exit, etc,
- * so vx_wait() receives this information directly from
- * VxWorks instead of trying to figure out what happenned via a wait() call.
- */
-
static int
vx_wait (pid_to_wait_for, status)
int pid_to_wait_for;
struct ldfile *pLoadFile = (struct ldfile *)arg;
printf_unfiltered("\t%s: ", pLoadFile->name);
- symbol_file_add (pLoadFile->name, 0, pLoadFile->txt_addr, 0, 0, 0);
+ vx_add_symbols (pLoadFile->name, 0, pLoadFile->txt_addr,
+ pLoadFile->data_addr, pLoadFile->bss_addr);
printf_unfiltered ("ok\n");
return 1;
}
struct ldfile *pLoadFile;
int i;
extern CLIENT *pClient;
+ int symbols_added = 0;
if (!args)
error_no_arg ("target machine name");
bootFile = NULL;
if (!net_get_boot_file (&bootFile))
{
- if (*bootFile) {
- printf_filtered ("\t%s: ", bootFile);
- if (catch_errors
- (symbol_stub, bootFile,
- "Error while reading symbols from boot file:\n", RETURN_MASK_ALL))
- puts_filtered ("ok\n");
- } else if (from_tty)
+ if (*bootFile)
+ {
+ printf_filtered ("\t%s: ", bootFile);
+ /* This assumes that the kernel is never relocated. Hope that is an
+ accurate assumption. */
+ if (catch_errors
+ (symbol_stub,
+ bootFile,
+ "Error while reading symbols from boot file:\n",
+ RETURN_MASK_ALL))
+ puts_filtered ("ok\n");
+ }
+ else if (from_tty)
printf_unfiltered ("VxWorks kernel symbols not loaded.\n");
}
else
do_cleanups (old_chain);
}
#else
- /* Botches, FIXME:
- (1) Searches the PATH, not the source path.
- (2) data and bss are assumed to be at the usual offsets from text. */
- catch_errors (add_symbol_stub, (char *)pLoadFile, (char *)0,
- RETURN_MASK_ALL);
+ /* FIXME: Is there something better to search than the PATH? (probably
+ not the source path, since source might be in different directories
+ than objects. */
+
+ if (catch_errors (add_symbol_stub, (char *)pLoadFile, (char *)0,
+ RETURN_MASK_ALL))
+ symbols_added = 1;
#endif
}
printf_filtered ("Done.\n");
clnt_freeres (pClient, xdr_ldtabl, &loadTable);
+
+ /* Getting new symbols may change our opinion about what is
+ frameless. */
+ if (symbols_added)
+ reinit_frame_cache ();
}
\f
/* Takes a task started up outside of gdb and ``attaches'' to it.
char *args;
int from_tty;
{
- int pid;
+ unsigned long pid;
char *cptr = 0;
Rptrace ptrace_in;
Ptrace_return ptrace_out;
if (!args)
error_no_arg ("process-id to attach");
- pid = strtol (args, &cptr, 0);
+ pid = strtoul (args, &cptr, 0);
if ((cptr == args) || (*cptr != '\0'))
error ("Invalid process-id -- give a single number in decimal or 0xhex");
if (from_tty)
- printf_unfiltered ("Attaching pid %s.\n",
- local_hex_string((unsigned long) pid));
+ printf_unfiltered ("Attaching pid %s.\n",
+ local_hex_string((unsigned long) pid));
memset ((char *)&ptrace_in, '\0', sizeof (ptrace_in));
memset ((char *)&ptrace_out, '\0', sizeof (ptrace_out));
/* It worked... */
push_target (&vx_run_ops);
+ /* The unsigned long pid will get turned into a signed int here,
+ but it doesn't seem to matter. inferior_pid must be signed
+ in order for other parts of GDB to work correctly. */
inferior_pid = pid;
vx_running = 0;
+#if defined (START_INFERIOR_HOOK)
+ START_INFERIOR_HOOK ();
+#endif
+
+ mark_breakpoints_out ();
+
+ /* Set up the "saved terminal modes" of the inferior
+ based on what modes we are starting it with. */
+
+ target_terminal_init ();
+
+ /* Install inferior's terminal modes. */
+
+ target_terminal_inferior ();
+
+ /* We will get a task spawn event immediately. */
+
+ init_wait_for_inferior ();
+ clear_proceed_status ();
+ stop_soon_quietly = 1;
+ wait_for_inferior ();
+ stop_soon_quietly = 0;
+ normal_stop ();
}
/* Target ops structure for accessing memory and such over the net */
struct target_ops vx_ops = {
- "vxworks", "VxWorks target memory via RPC over TCP/IP",
- "Use VxWorks target memory. \n\
+ "vxworks", "VxWorks target memory via RPC over TCP/IP",
+ "Use VxWorks target memory. \n\
Specify the name of the machine to connect to.",
- vx_open, vx_close, vx_attach, 0, /* vx_detach, */
- 0, 0, /* resume, wait */
- 0, 0, /* read_reg, write_reg */
- 0, /* prep_to_store, */
- vx_xfer_memory, vx_files_info,
- 0, 0, /* insert_breakpoint, remove_breakpoint */
- 0, 0, 0, 0, 0, /* terminal stuff */
- 0, /* vx_kill, */
- vx_load_command,
- vx_lookup_symbol,
- vx_create_inferior, 0, /* mourn_inferior */
- 0, /* can_run */
- 0, /* notice_signals */
- core_stratum, 0, /* next */
- 1, 1, 0, 0, 0, /* all mem, mem, stack, regs, exec */
- 0, 0, /* Section pointers */
- OPS_MAGIC, /* Always the last thing */
+ vx_open, vx_close, vx_attach, 0, /* vx_detach, */
+ 0, 0, /* resume, wait */
+ 0, 0, /* read_reg, write_reg */
+ 0, /* prep_to_store, */
+ vx_xfer_memory, vx_files_info,
+ 0, 0, /* insert_breakpoint, remove_breakpoint */
+ 0, 0, 0, 0, 0, /* terminal stuff */
+ 0, /* vx_kill, */
+ vx_load_command,
+ vx_lookup_symbol,
+ vx_create_inferior, 0, /* mourn_inferior */
+ 0, /* can_run */
+ 0, /* notice_signals */
+ 0, /* thread_alive */
+ 0, /* to_stop */
+ core_stratum, 0, /* next */
+ 1, 1, 0, 0, 0, /* all mem, mem, stack, regs, exec */
+ 0, 0, /* Section pointers */
+ OPS_MAGIC, /* Always the last thing */
};
/* Target ops structure for accessing VxWorks child processes over the net */
struct target_ops vx_run_ops = {
- "vxprocess", "VxWorks process",
- "VxWorks process, started by the \"run\" command.",
- vx_proc_open, vx_proc_close, 0, vx_detach, /* vx_attach */
- vx_resume, vx_wait,
- vx_read_register, vx_write_register,
- vx_prepare_to_store,
- vx_xfer_memory, vx_run_files_info,
- vx_insert_breakpoint, vx_remove_breakpoint,
- 0, 0, 0, 0, 0, /* terminal stuff */
- vx_kill,
- vx_load_command,
- vx_lookup_symbol,
- 0, vx_mourn_inferior,
- 0, /* can_run */
- 0, /* notice_signals */
- process_stratum, 0, /* next */
- 0, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */
- /* all_mem is off to avoid spurious msg in "i files" */
- 0, 0, /* Section pointers */
- OPS_MAGIC, /* Always the last thing */
+ "vxprocess", "VxWorks process",
+ "VxWorks process, started by the \"run\" command.",
+ vx_proc_open, vx_proc_close, 0, vx_detach, /* vx_attach */
+ vx_resume, vx_wait,
+ vx_read_register, vx_write_register,
+ vx_prepare_to_store,
+ vx_xfer_memory, vx_run_files_info,
+ vx_insert_breakpoint, vx_remove_breakpoint,
+ 0, 0, 0, 0, 0, /* terminal stuff */
+ vx_kill,
+ vx_load_command,
+ vx_lookup_symbol,
+ 0, vx_mourn_inferior,
+ 0, /* can_run */
+ 0, /* notice_signals */
+ 0, /* thread_alive */
+ 0, /* to_stop */
+ process_stratum, 0, /* next */
+ 0, /* all_mem--off to avoid spurious msg in "i files" */
+ 1, 1, 1, 1, /* mem, stack, regs, exec */
+ 0, 0, /* Section pointers */
+ OPS_MAGIC, /* Always the last thing */
};
/* ==> Remember when reading at end of file, there are two "ops" structs here. */
\f
void
_initialize_vx ()
{
-
- add_show_from_set
+ add_show_from_set
(add_set_cmd ("vxworks-timeout", class_support, var_uinteger,
(char *) &rpcTimeout.tv_sec,
"Set seconds to wait for rpc calls to return.\n\
Set the number of seconds to wait for rpc calls to return.", &setlist),
&showlist);
- add_target (&vx_ops);
+ add_target (&vx_ops);
add_target (&vx_run_ops);
}
projects / binutils.git / blobdiff