/* Memory-access and commands for remote VxWorks processes, for GDB.
- Copyright (C) 1990-1991 Free Software Foundation, Inc.
+ Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
Contributed by Wind River Systems and Cygnus Support.
This file is part of GDB.
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-#include <stdio.h>
#include "defs.h"
#include "frame.h"
#include "inferior.h"
#include "gdbcore.h"
#include "command.h"
#include "symtab.h"
-#include "symfile.h" /* for struct complaint */
+#include "complaints.h"
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/types.h>
-#include <sys/time.h>
#include <sys/socket.h>
+#define malloc bogon_malloc /* Sun claims "char *malloc()" not void * */
#define free bogon_free /* Sun claims "int free()" not void */
+#define realloc bogon_realloc /* Sun claims "char *realloc()", not void * */
#include <rpc/rpc.h>
+#undef malloc
#undef free
+#undef realloc
#include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
#include <netdb.h>
-#include <ptrace.h>
-#include "xdr_ptrace.h"
-#include "xdr_ld.h"
-#include "xdr_rdb.h"
-#include "dbgRpcLib.h"
-
-/* get rid of value.h if possible */
-#include <value.h>
+#include "vx-share/ptrace.h"
+#include "vx-share/xdr_ptrace.h"
+#include "vx-share/xdr_ld.h"
+#include "vx-share/xdr_rdb.h"
+#include "vx-share/dbgRpcLib.h"
+
#include <symtab.h>
-
-extern value call_function_by_hand ();
+
extern void symbol_file_command ();
extern int stop_soon_quietly; /* for wait_for_inferior */
/* Tell the VxWorks target system to download a file.
The load addresses of the text, data, and bss segments are
- stored in pTextAddr, pDataAddr, and *pBssAddr (respectively).
+ stored in *pTextAddr, *pDataAddr, and *pBssAddr (respectively).
Returns 0 for success, -1 for failure. */
static int
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.
-
+
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... */
if (status == RPC_SUCCESS)
{
- if (*ldstruct.name == NULL) /* load failed on VxWorks side */
+ if (*ldstruct.name == 0) /* load failed on VxWorks side */
return -1;
*pTextAddr = ldstruct.txt_addr;
*pDataAddr = ldstruct.data_addr;
/* returns 0 if successful, errno otherwise */
-int
+static int
vx_insert_breakpoint (addr)
int addr;
{
/* returns 0 if successful, errno otherwise */
-int
+static int
vx_remove_breakpoint (addr)
int addr;
{
Returns process id. Errors reported with error().
On VxWorks, we ignore exec_file. */
-void
+static void
vx_create_inferior (exec_file, args, env)
char *exec_file;
char *args;
to the debugged task.
Returns -1 if remote wait failed, task status otherwise. */
-int
+static int
net_wait (pEvent)
RDB_EVENT *pEvent;
{
/* Suspend the remote task.
Returns -1 if suspend fails on target system, 0 otherwise. */
-int
+static int
net_quit ()
{
int pid;
/* Read a register or registers from the remote system. */
-int
+static void
vx_read_register (regno)
int regno;
{
int status;
Rptrace ptrace_in;
Ptrace_return ptrace_out;
- struct regs inferior_registers;
- struct fp_status inferior_fp_registers;
+ C_bytes in_data;
+ C_bytes out_data;
extern char registers[];
bzero ((char *) &ptrace_in, sizeof (ptrace_in));
registers_fetched ();
ptrace_in.pid = inferior_pid;
- ptrace_out.info.more_data = (caddr_t) &inferior_registers;
+ ptrace_out.info.more_data = (caddr_t) &out_data;
+#ifndef I80960
+ out_data.len = 18 * REGISTER_RAW_SIZE (0); /* FIXME m68k hack */
+#else
+ out_data.len = (16 + 16 + 3) * REGISTER_RAW_SIZE (0);
+#endif
+ out_data.bytes = (caddr_t) registers;
+
status = net_ptrace_clnt_call (PTRACE_GETREGS, &ptrace_in, &ptrace_out);
if (status)
error (rpcerr);
if (ptrace_out.status == -1)
{
errno = ptrace_out.errno;
- return -1;
+ perror_with_name ("net_ptrace_clnt_call(PTRACE_GETREGS)");
}
#ifdef I80960
- bcopy ((char *) inferior_registers.r_lreg,
- ®isters[REGISTER_BYTE (R0_REGNUM)], 16 * sizeof (int));
- bcopy ((char *) inferior_registers.r_greg,
- ®isters[REGISTER_BYTE (G0_REGNUM)], 16 * sizeof (int));
-
- /* Don't assume that a location in registers[] is properly aligned. */
-
- bcopy ((char *) &inferior_registers.r_pcw,
- ®isters[REGISTER_BYTE (PCW_REGNUM)], sizeof (int));
- bcopy ((char *) &inferior_registers.r_acw,
- ®isters[REGISTER_BYTE (ACW_REGNUM)], sizeof (int));
- bcopy ((char *) &inferior_registers.r_lreg[2], /* r2 (RIP) -> IP */
- ®isters[REGISTER_BYTE (IP_REGNUM)], sizeof (int));
- bcopy ((char *) &inferior_registers.r_tcw,
- ®isters[REGISTER_BYTE (TCW_REGNUM)], sizeof (int));
-
- /* 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) &inferior_fp_registers;
- status = net_ptrace_clnt_call (PTRACE_GETFPREGS, &ptrace_in, &ptrace_out);
- if (status)
- error (rpcerr);
- if (ptrace_out.status == -1)
- {
- errno = ptrace_out.errno;
- return -1;
- }
-
- bcopy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)],
- REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
- }
- else
- {
- bzero ((char *) ®isters[REGISTER_BYTE (FP0_REGNUM)],
- REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
- }
-
+ {
+ /* 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. */
+ /* @@ Can't use this -- the rdb library for the 960 target
+ doesn't support setting or retrieving FP regs. KR */
+#if 0
+ struct fp_status inferior_fp_registers;
+
+ if (target_has_fp)
+ {
+ ptrace_in.pid = inferior_pid;
+ ptrace_out.info.more_data = (caddr_t) &inferior_fp_registers;
+ 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)");
+ }
+
+ bcopy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)],
+ REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
+ }
+ else
+ {
+ bzero ((char *) ®isters[REGISTER_BYTE (FP0_REGNUM)],
+ REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
+ }
+#endif
+ }
#else /* not 960, thus must be 68000: FIXME! */
- bcopy (&inferior_registers, registers, 16 * 4);
- *(int *)®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps;
- *(int *)®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc;
-
if (target_has_fp)
{
ptrace_in.pid = inferior_pid;
- ptrace_out.info.more_data = (caddr_t) &inferior_fp_registers;
+ ptrace_out.info.more_data = (caddr_t) &out_data;
+ out_data.len = 8 * REGISTER_RAW_SIZE (FP0_REGNUM) /* FIXME */
+ + (3 * sizeof (REGISTER_TYPE));
+ 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;
- return -1;
+ perror_with_name ("net_ptrace_clnt_call(PTRACE_GETFPREGS)");
}
-
- bcopy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)],
- sizeof inferior_fp_registers.fps_regs);
- bcopy (&inferior_fp_registers.fps_control,
- ®isters[REGISTER_BYTE (FPC_REGNUM)],
- sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs);
}
else
{
bzero (®isters[REGISTER_BYTE (FP0_REGNUM)],
- sizeof inferior_fp_registers.fps_regs);
+ 8 * REGISTER_RAW_SIZE (FP0_REGNUM));
bzero (®isters[REGISTER_BYTE (FPC_REGNUM)],
- sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs);
+ 3 * sizeof (REGISTER_TYPE));
}
#endif /* various architectures */
-
- return 0;
}
/* Prepare to store registers. Since we will store all of them,
read out their current values now. */
-void
+static void
vx_prepare_to_store ()
{
- vx_read_register (-1);
+ /* Fetch all registers, if any of them are not yet fetched. */
+ read_register_bytes (0, NULL, REGISTER_BYTES);
}
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;
{
- struct regs inferior_registers;
- struct fp_status inferior_fp_registers;
+ C_bytes in_data;
+ C_bytes out_data;
extern char registers[];
int status;
Rptrace ptrace_in;
bzero ((char *) &ptrace_in, sizeof (ptrace_in));
bzero ((char *) &ptrace_out, sizeof (ptrace_out));
-#ifdef I80960
+ ptrace_in.pid = inferior_pid;
+ ptrace_in.info.ttype = DATA;
+ ptrace_in.info.more_data = (caddr_t) &in_data;
- bcopy (®isters[REGISTER_BYTE (R0_REGNUM)],
- (char *) inferior_registers.r_lreg, 16 * sizeof (int));
- bcopy (®isters[REGISTER_BYTE (G0_REGNUM)],
- (char *) inferior_registers.r_greg, 16 * sizeof (int));
+ in_data.bytes = registers;
- /* Don't assume that a location in registers[] is properly aligned. */
+#ifdef I80960
- bcopy (®isters[REGISTER_BYTE (PCW_REGNUM)],
- (char *) &inferior_registers.r_pcw, sizeof (int));
- bcopy (®isters[REGISTER_BYTE (ACW_REGNUM)],
- (char *) &inferior_registers.r_acw, sizeof (int));
- bcopy (®isters[REGISTER_BYTE (TCW_REGNUM)],
- (char *) &inferior_registers.r_tcw, sizeof (int));
+ in_data.len = (16 + 16 + 3) * sizeof (REGISTER_TYPE);
-#else /* not 960 -- assume 68k -- FIXME */
+#else /* not 960 -- assume m68k -- FIXME */
- bcopy (registers, &inferior_registers, 16 * 4);
- inferior_registers.r_ps = *(int *)®isters[REGISTER_BYTE (PS_REGNUM)];
- inferior_registers.r_pc = *(int *)®isters[REGISTER_BYTE (PC_REGNUM)];
+ in_data.len = 18 * sizeof (REGISTER_TYPE);
#endif /* Different register sets */
- ptrace_in.pid = inferior_pid;
- ptrace_in.info.ttype = REGS;
- ptrace_in.info.more_data = (caddr_t) &inferior_registers;
-
/* XXX change second param to be a proc number */
status = net_ptrace_clnt_call (PTRACE_SETREGS, &ptrace_in, &ptrace_out);
if (status)
if (ptrace_out.status == -1)
{
errno = ptrace_out.errno;
- return -1;
+ perror_with_name ("net_ptrace_clnt_call(PTRACE_SETREGS)");
}
/* Store floating point registers if the target has them. */
if (target_has_fp)
{
-#ifdef I80960
+ ptrace_in.pid = inferior_pid;
+ ptrace_in.info.ttype = DATA;
+ ptrace_in.info.more_data = (caddr_t) &in_data;
- bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
- sizeof inferior_fp_registers.fps_regs);
-#else /* not 960 -- assume 68k -- FIXME */
+#ifdef I80960
+#if 0 /* @@ Not supported by target. */
+ in_data.bytes = ®isters[REGISTER_BYTE (FP0_REGNUM)];
+ in_data.len = 4 * REGISTER_RAW_SIZE (FP0_REGNUM);
+#endif
+#else /* not 960 -- assume m68k -- FIXME */
- bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
- sizeof inferior_fp_registers.fps_regs);
- bcopy (®isters[REGISTER_BYTE (FPC_REGNUM)],
- &inferior_fp_registers.fps_control,
- sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs);
+ in_data.bytes = ®isters[REGISTER_BYTE (FP0_REGNUM)];
+ in_data.len = (8 * REGISTER_RAW_SIZE (FP0_REGNUM)
+ + (3 * sizeof (REGISTER_TYPE)));
#endif /* Different register sets */
- ptrace_in.pid = inferior_pid;
- ptrace_in.info.ttype = FPREGS;
- ptrace_in.info.more_data = (caddr_t) &inferior_fp_registers;
-
status = net_ptrace_clnt_call (PTRACE_SETFPREGS, &ptrace_in, &ptrace_out);
if (status)
error (rpcerr);
if (ptrace_out.status == -1)
{
errno = ptrace_out.errno;
- return -1;
+ perror_with_name ("net_ptrace_clnt_call(PTRACE_SETFPREGS)");
}
}
- return 0;
}
/* Copy LEN bytes to or from remote inferior's memory starting at MEMADDR
handle the current address but can handle one N bytes further, but
vxworks doesn't give us that information. */
-int
+static int
vx_xfer_memory (memaddr, myaddr, len, write, target)
CORE_ADDR memaddr;
char *myaddr;
return len; /* Moved *all* the bytes */
}
-void
+static void
vx_files_info ()
{
printf ("\tAttached to host `%s'", vx_host);
printf (".\n");
}
-void
+static void
vx_run_files_info ()
{
printf ("\tRunning %s VxWorks process %s",
printf(".\n");
}
-void
+static void
vx_resume (step, siggnal)
int step;
int siggnal;
}
}
-void
+static void
vx_mourn_inferior ()
{
pop_target (); /* Pop back to no-child state */
\f
/* This function allows the addition of incrementally linked object files. */
-void
+static void
vx_load_command (arg_string, from_tty)
char* arg_string;
int from_tty;
immediate_quit--;
/* FIXME, for now we ignore data_addr and bss_addr. */
- symbol_file_add (arg_string, from_tty, text_addr, 0);
+ symbol_file_add (arg_string, from_tty, text_addr, 0, 0, 0);
}
#ifdef FIXME /* Not ready for prime time */
NULL, memory for the buffer will be allocated by XDR.
Returns -1 if rpc failed, 0 otherwise. */
-int
+static int
net_get_boot_file (pBootFile)
char **pBootFile;
{
There's no way to check if the returned loadTable is correct.
VxWorks doesn't check it. */
-int
+static int
net_get_symbols (pLoadTable)
ldtabl *pLoadTable; /* return pointer to ldtabl here */
{
struct complaint cant_contact_target =
{"Lost contact with VxWorks target", 0, 0};
-int
+static int
vx_lookup_symbol (name, pAddr)
char *name; /* symbol name */
CORE_ADDR *pAddr;
status = net_clnt_call (VX_SYMBOL_INQ, xdr_wrapstring, &name,
xdr_SYMBOL_ADDR, &symbolAddr);
if (status != RPC_SUCCESS) {
- complain (&cant_contact_target, 0);
+ complain (&cant_contact_target);
return -1;
}
Returns 1 if target has floating point processor, 0 otherwise.
Calls error() if rpc fails. */
-int
+static int
net_check_for_fp ()
{
enum clnt_stat status;
/* Establish an RPC connection with the VxWorks target system.
Calls error () if unable to establish connection. */
-void
+static void
net_connect (host)
char *host;
{
case EVENT_ZERO_DIV: /* Division by zero */
WSETSTOP (w, SIGFPE); /* Like Unix, call it a float exception. */
+ break;
case EVENT_SIGNAL:
/* The target is not running Unix, and its
struct ldfile *pLoadFile = (struct ldfile *)arg;
printf("\t%s: ", pLoadFile->name);
- symbol_file_add (pLoadFile->name, 0, pLoadFile->txt_addr, 0);
+ symbol_file_add (pLoadFile->name, 0, pLoadFile->txt_addr, 0, 0, 0);
printf ("ok\n");
return 1;
}
clnt_freeres (pClient, xdr_ldtabl, &loadTable);
}
\f
-/* attach_command --
- takes a task started up outside of gdb and ``attaches'' to it.
+/* Takes a task started up outside of gdb and ``attaches'' to it.
This stops it cold in its tracks and allows us to start tracing it. */
static void
Ptrace_return ptrace_out;
int status;
- dont_repeat();
-
if (!args)
error_no_arg ("process-id to attach");
push_target (&vx_run_ops);
inferior_pid = pid;
vx_running = 0;
-
- 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 ();
}
/* vx_kill -- takes a running task and wipes it out. */
static void
-vx_kill (args, from_tty)
- char *args;
- int from_tty;
+vx_kill ()
{
Rptrace ptrace_in;
Ptrace_return ptrace_out;
int status;
- if (args)
- error ("Argument given to VxWorks \"kill\".");
-
- if (from_tty)
- printf ("Killing pid %s.\n", local_hex_string(inferior_pid));
+ printf ("Killing pid %s.\n", local_hex_string(inferior_pid));
bzero ((char *)&ptrace_in, sizeof (ptrace_in));
bzero ((char *)&ptrace_out, sizeof (ptrace_out));
status = net_ptrace_clnt_call (PTRACE_KILL, &ptrace_in, &ptrace_out);
if (status == -1)
- error (rpcerr);
- if (ptrace_out.status == -1)
+ warning (rpcerr);
+ else if (ptrace_out.status == -1)
{
errno = ptrace_out.errno;
perror_with_name ("Killing VxWorks process");
}
- /* If it gives good status, the process is *gone*, no events remain. */
+ /* If it gives good status, the process is *gone*, no events remain.
+ If the kill failed, assume the process is gone anyhow. */
inferior_pid = 0;
pop_target (); /* go back to non-executing VxWorks connection */
}
/* Clean up from the VxWorks process target as it goes away. */
-void
+static void
vx_proc_close (quitting)
int quitting;
{
vx_running = 0;
}
\f
-/* Cross-net conversion of floats to and from extended form.
- (This is needed because different target machines have different
- extended floating point formats.) */
-
-/* Convert from an extended float to a double.
-
- The extended float is stored as raw data pointed to by FROM.
- Return the converted value as raw data in the double pointed to by TO.
-*/
-
-static void
-vx_convert_to_virtual (regno, from, to)
- int regno;
- char *from;
- char *to;
-{
- enum clnt_stat status;
-
- if (REGISTER_CONVERTIBLE (regno))
- {
- if (!target_has_fp) {
- *(double *)to = 0.0; /* Skip the trouble if no float anyway */
- return;
- }
-
- status = net_clnt_call (VX_CONV_FROM_68881, xdr_ext_fp, from,
- xdr_double, to);
-
- if (status == RPC_SUCCESS)
- return;
- else
- error (rpcerr);
- }
- else
- bcopy (from, to, REGISTER_VIRTUAL_SIZE (regno));
-}
-
-
-/* The converse: convert from a double to an extended float.
-
- The double is stored as raw data pointed to by FROM.
- Return the converted value as raw data in the extended
- float pointed to by TO.
-*/
-
-static void
-vx_convert_from_virtual (regno, from, to)
- int regno;
- char *from;
- char *to;
-{
- enum clnt_stat status;
-
- if (REGISTER_CONVERTIBLE (regno))
- {
- if (!target_has_fp) {
- bzero (to, REGISTER_RAW_SIZE (FP0_REGNUM)); /* Shrug */
- return;
- }
-
- status = net_clnt_call (VX_CONV_TO_68881, xdr_double, from,
- xdr_ext_fp, to);
- if (status == RPC_SUCCESS)
- return;
- else
- error (rpcerr);
- }
- else
- bcopy (from, to, REGISTER_VIRTUAL_SIZE (regno));
-}
-\f
/* Make an RPC call to the VxWorks target.
Returns RPC status. */
/* Clean up before losing control. */
-void
+static void
vx_close (quitting)
int quitting;
{
vx_open, vx_close, vx_attach, 0, /* vx_detach, */
0, 0, /* resume, wait */
0, 0, /* read_reg, write_reg */
- 0, vx_convert_to_virtual, vx_convert_from_virtual, /* prep_to_store, */
+ 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,
- 0, /* call_function */
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 */
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_convert_to_virtual, vx_convert_from_virtual,
+ 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,
- call_function_by_hand, /* FIXME, calling fns is maybe botched? */
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" */
projects / binutils.git / blobdiff