/* 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.
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "defs.h"
-#include "param.h"
#include "frame.h"
#include "inferior.h"
#include "wait.h"
#include "symtab.h"
#include "symfile.h" /* for struct complaint */
-#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <signal.h>
#include "xdr_rdb.h"
#include "dbgRpcLib.h"
-/* get rid of value.h if possible */
-#include <value.h>
#include <symtab.h>
-
-extern value call_function_by_hand ();
+
extern void symbol_file_command ();
-extern void add_syms_addr_command ();
extern int stop_soon_quietly; /* for wait_for_inferior */
static int net_ptrace_clnt_call (); /* Forward decl */
return net_break (addr, VX_BREAK_DELETE);
}
-/* Call a function on the VxWorks target system.
- ARGS is a vector of values of arguments (NARGS of them).
- FUNCTION is a value, the function to be called.
- Returns a struct value * representing what the function returned.
- May fail to return, if a breakpoint or signal is hit
- during the execution of the function. */
-
-#ifdef FIXME
-/* FIXME, function calls are really fried. GO back to manual method. */
-value
-vx_call_function (function, nargs, args)
- value function;
- int nargs;
- value *args;
-{
- register CORE_ADDR sp;
- register int i;
- CORE_ADDR start_sp;
- static REGISTER_TYPE dummy[] = CALL_DUMMY;
- REGISTER_TYPE dummy1[sizeof dummy / sizeof (REGISTER_TYPE)];
- CORE_ADDR old_sp;
- struct type *value_type;
- unsigned char struct_return;
- CORE_ADDR struct_addr;
- struct inferior_status inf_status;
- struct cleanup *old_chain;
- CORE_ADDR funaddr;
- int using_gcc;
-
- save_inferior_status (&inf_status, 1);
- old_chain = make_cleanup (restore_inferior_status, &inf_status);
-
- /* PUSH_DUMMY_FRAME is responsible for saving the inferior registers
- (and POP_FRAME for restoring them). (At least on most machines)
- they are saved on the stack in the inferior. */
- PUSH_DUMMY_FRAME;
-
- old_sp = sp = read_register (SP_REGNUM);
-
-#if 1 INNER_THAN 2 /* Stack grows down */
- sp -= sizeof dummy;
- start_sp = sp;
-#else /* Stack grows up */
- start_sp = sp;
- sp += sizeof dummy;
-#endif
-
- funaddr = find_function_addr (function, &value_type);
-
- {
- struct block *b = block_for_pc (funaddr);
- /* If compiled without -g, assume GCC. */
- using_gcc = b == NULL || BLOCK_GCC_COMPILED (b);
- }
-
- /* Are we returning a value using a structure return or a normal
- value return? */
-
- struct_return = using_struct_return (function, funaddr, value_type,
- using_gcc);
-
- /* Create a call sequence customized for this function
- and the number of arguments for it. */
- bcopy (dummy, dummy1, sizeof dummy);
- FIX_CALL_DUMMY (dummy1, start_sp, funaddr, nargs, args,
- value_type, using_gcc);
-
-#if CALL_DUMMY_LOCATION == ON_STACK
- write_memory (start_sp, dummy1, sizeof dummy);
-
-#else /* Not on stack. */
-#if CALL_DUMMY_LOCATION == BEFORE_TEXT_END
- /* Convex Unix prohibits executing in the stack segment. */
- /* Hope there is empty room at the top of the text segment. */
- {
- static checked = 0;
- if (!checked)
- for (start_sp = text_end - sizeof dummy; start_sp < text_end; ++start_sp)
- if (read_memory_integer (start_sp, 1) != 0)
- error ("text segment full -- no place to put call");
- checked = 1;
- sp = old_sp;
- start_sp = text_end - sizeof dummy;
- write_memory (start_sp, dummy1, sizeof dummy);
- }
-#else /* After text_end. */
- {
- int errcode;
- sp = old_sp;
- start_sp = text_end;
- errcode = target_write_memory (start_sp, dummy1, sizeof dummy);
- if (errcode != 0)
- error ("Cannot write text segment -- call_function failed");
- }
-#endif /* After text_end. */
-#endif /* Not on stack. */
-
-#ifdef STACK_ALIGN
- /* If stack grows down, we must leave a hole at the top. */
- {
- int len = 0;
-
- /* Reserve space for the return structure to be written on the
- stack, if necessary */
-
- if (struct_return)
- len += TYPE_LENGTH (value_type);
-
- for (i = nargs - 1; i >= 0; i--)
- len += TYPE_LENGTH (VALUE_TYPE (value_arg_coerce (args[i])));
-#ifdef CALL_DUMMY_STACK_ADJUST
- len += CALL_DUMMY_STACK_ADJUST;
-#endif
-#if 1 INNER_THAN 2
- sp -= STACK_ALIGN (len) - len;
-#else
- sp += STACK_ALIGN (len) - len;
-#endif
- }
-#endif /* STACK_ALIGN */
-
- /* Reserve space for the return structure to be written on the
- stack, if necessary */
-
- if (struct_return)
- {
-#if 1 INNER_THAN 2
- sp -= TYPE_LENGTH (value_type);
- struct_addr = sp;
-#else
- struct_addr = sp;
- sp += TYPE_LENGTH (value_type);
-#endif
- }
-
-#if defined (REG_STRUCT_HAS_ADDR)
- {
- /* This is a machine like the sparc, where we need to pass a pointer
- to the structure, not the structure itself. */
- if (REG_STRUCT_HAS_ADDR (using_gcc))
- for (i = nargs - 1; i >= 0; i--)
- if (TYPE_CODE (VALUE_TYPE (args[i])) == TYPE_CODE_STRUCT)
- {
- CORE_ADDR addr;
-#if !(1 INNER_THAN 2)
- /* The stack grows up, so the address of the thing we push
- is the stack pointer before we push it. */
- addr = sp;
-#endif
- /* Push the structure. */
- sp = value_push (sp, args[i]);
-#if 1 INNER_THAN 2
- /* The stack grows down, so the address of the thing we push
- is the stack pointer after we push it. */
- addr = sp;
-#endif
- /* The value we're going to pass is the address of the thing
- we just pushed. */
- args[i] = value_from_long (builtin_type_long, (LONGEST) addr);
- }
- }
-#endif /* REG_STRUCT_HAS_ADDR. */
-
-#ifdef PUSH_ARGUMENTS
- PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr);
-#else /* !PUSH_ARGUMENTS */
- for (i = nargs - 1; i >= 0; i--)
- sp = value_arg_push (sp, args[i]);
-#endif /* !PUSH_ARGUMENTS */
-
-#ifdef CALL_DUMMY_STACK_ADJUST
-#if 1 INNER_THAN 2
- sp -= CALL_DUMMY_STACK_ADJUST;
-#else
- sp += CALL_DUMMY_STACK_ADJUST;
-#endif
-#endif /* CALL_DUMMY_STACK_ADJUST */
-
- /* Store the address at which the structure is supposed to be
- written. Note that this (and the code which reserved the space
- above) assumes that gcc was used to compile this function. Since
- it doesn't cost us anything but space and if the function is pcc
- it will ignore this value, we will make that assumption.
-
- Also note that on some machines (like the sparc) pcc uses a
- convention like gcc's. */
-
- if (struct_return)
- STORE_STRUCT_RETURN (struct_addr, sp);
-
- /* Write the stack pointer. This is here because the statements above
- might fool with it. On SPARC, this write also stores the register
- window into the right place in the new stack frame, which otherwise
- wouldn't happen. (See write_inferior_registers in sparc-xdep.c.) */
- write_register (SP_REGNUM, sp);
-
- /* Figure out the value returned by the function. */
- {
- char retbuf[REGISTER_BYTES];
-
- /* Execute the stack dummy routine, calling FUNCTION.
- When it is done, discard the empty frame
- after storing the contents of all regs into retbuf. */
- run_stack_dummy (start_sp + CALL_DUMMY_START_OFFSET, retbuf);
-
- do_cleanups (old_chain);
-
- return value_being_returned (value_type, retbuf, struct_return);
- }
-}
-/* should return a value of some sort */
-
-value
-vx_call_function (funcAddr, nargs, args, valueType)
- char *funcAddr;
- int nargs;
- value *args;
- struct type * valueType;
-{
- int i;
- func_call funcInfo;
- arg_value *argValue;
- enum clnt_stat status;
- register int len;
- arg_value funcReturn;
- value gdbValue;
-
- argValue = (arg_value *) xmalloc (nargs * sizeof (arg_value));
-
- bzero (argValue, nargs * sizeof (arg_value));
- bzero (&funcReturn, sizeof (funcReturn));
-
- for (i = nargs - 1; i >= 0; i--)
- {
- len = TYPE_LENGTH (VALUE_TYPE (args [i]));
-
- switch (TYPE_CODE (VALUE_TYPE (args[i])))
- {
- /* XXX put other types here. Where's CHAR, etc??? */
-
- case TYPE_CODE_FLT:
- argValue[i].type = T_FLOAT;
- break;
- case TYPE_CODE_INT:
- case TYPE_CODE_PTR:
- case TYPE_CODE_ENUM:
- case TYPE_CODE_FUNC:
- argValue[i].type = T_INT;
- break;
-
- case TYPE_CODE_UNDEF:
- case TYPE_CODE_ARRAY:
- case TYPE_CODE_STRUCT:
- case TYPE_CODE_UNION:
- case TYPE_CODE_VOID:
- case TYPE_CODE_SET:
- case TYPE_CODE_RANGE:
- case TYPE_CODE_PASCAL_ARRAY:
- case TYPE_CODE_MEMBER: /* C++ */
- case TYPE_CODE_METHOD: /* C++ */
- case TYPE_CODE_REF: /* C++ */
- default:
- error ("No corresponding VxWorks type for %d. CHECK IT OUT!!!\n",
- TYPE_CODE(VALUE_TYPE(args[i])));
- } /* switch */
- if (TYPE_CODE(VALUE_TYPE(args[i])) == TYPE_CODE_FUNC)
- argValue[i].arg_value_u.v_int = VALUE_ADDRESS(args[i]);
- else
- bcopy (VALUE_CONTENTS (args[i]), (char *) &argValue[i].arg_value_u,
- len);
- }
-
- /* XXX what should the type of this function addr be?
- * XXX Both in gdb and vxWorks
- */
- funcInfo.func_addr = (int) funcAddr;
- funcInfo.args.args_len = nargs;
- funcInfo.args.args_val = argValue;
-
- status = net_clnt_call (VX_CALL_FUNC, xdr_func_call, (char *) &funcInfo,
- xdr_arg_value, &funcReturn);
-
- free ((char *) argValue);
-
- if (status == RPC_SUCCESS)
- {
- /* XXX this assumes that vxWorks ALWAYS returns an int, and that
- * XXX gdb isn't expecting anything more
- */
-
- /*******************
- if (funcReturn.type == T_UNKNOWN)
- return YYYXXX...;
- *******************/
- gdbValue = allocate_value (valueType);
- bcopy (&funcReturn.arg_value_u.v_int, VALUE_CONTENTS (gdbValue),
- sizeof (int));
- return gdbValue;
- }
- else
- error (rpcerr);
- }
-#endif /* FIXME */
-
/* Start an inferior process and sets inferior_pid to its pid.
EXEC_FILE is the file to run.
ALLARGS is a string containing the arguments to the program.
push_target (&vx_run_ops);
inferior_pid = taskStart.pid;
-#if defined (START_INFERIOR_HOOK)
- START_INFERIOR_HOOK ();
-#endif
-
/* We will get a trace trap after one instruction.
Insert breakpoints and continue. */
/* Install inferior's terminal modes. */
target_terminal_inferior ();
- /* remote_start(args); */
- /* trap_expected = 0; */
stop_soon_quietly = 1;
wait_for_inferior (); /* Get the task spawn event */
stop_soon_quietly = 0;
vxworks doesn't give us that information. */
int
-vx_xfer_memory (memaddr, myaddr, len, write)
+vx_xfer_memory (memaddr, myaddr, len, write, target)
CORE_ADDR memaddr;
char *myaddr;
int len;
+ int write;
+ struct target_ops *target; /* ignored */
{
int status;
Rptrace ptrace_in;
void
vx_run_files_info ()
{
- printf ("\tRunning %s VxWorks process 0x%x",
+ printf ("\tRunning %s VxWorks process %s",
vx_running? "child": "attached",
- inferior_pid);
+ local_hex_string(inferior_pid));
if (vx_running)
printf (", function `%s'", vx_running);
printf(".\n");
immediate_quit--;
/* FIXME, for now we ignore data_addr and bss_addr. */
- symbol_file_add (arg_string, from_tty, text_addr, 0);
+ (void) symbol_file_add (arg_string, from_tty, text_addr, 0, 0);
}
#ifdef FIXME /* Not ready for prime time */
sleep_ms (200); /* FIXME Don't kill the network too badly */
}
else if (pid != inferior_pid)
- fatal ("Bad pid for debugged task: 0x%x\n", pid);
+ fatal ("Bad pid for debugged task: %s\n", local_hex_string(pid));
} while (pid == 0);
/* FIXME, eventually do more then SIGTRAP on everything... */
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
\f
static int
symbol_stub (arg)
- int arg;
+ char *arg;
{
- char *bootFile = (char *)arg;
- symbol_file_command (bootFile, 0);
+ symbol_file_command (arg, 0);
return 1;
}
static int
add_symbol_stub (arg)
- int arg;
+ char *arg;
{
struct ldfile *pLoadFile = (struct ldfile *)arg;
printf("\t%s: ", pLoadFile->name);
- symbol_file_add (pLoadFile->name, 0, pLoadFile->txt_addr, 0);
+ (void) symbol_file_add (pLoadFile->name, 0, pLoadFile->txt_addr, 0, 0);
printf ("ok\n");
return 1;
}
{
if (*bootFile) {
printf_filtered ("\t%s: ", bootFile);
- if (catch_errors (symbol_stub, (int)bootFile,
- "Error reading symbols from boot file"))
+ if (catch_errors (symbol_stub, bootFile,
+ "Error while reading symbols from boot file:\n"))
puts_filtered ("ok\n");
} else if (from_tty)
printf ("VxWorks kernel symbols not loaded.\n");
/* 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, (int)pLoadFile, (char *)0);
+ catch_errors (add_symbol_stub, (char *)pLoadFile, (char *)0);
#endif
}
printf_filtered ("Done.\n");
error ("Invalid process-id -- give a single number in decimal or 0xhex");
if (from_tty)
- printf ("Attaching pid 0x%x.\n", pid);
+ printf ("Attaching pid %s.\n", local_hex_string(pid));
bzero ((char *)&ptrace_in, sizeof (ptrace_in));
bzero ((char *)&ptrace_out, sizeof (ptrace_out));
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
error ("Argument given to VxWorks \"detach\".");
if (from_tty)
- printf ("Detaching pid 0x%x.\n", inferior_pid);
+ printf ("Detaching pid %s.\n", local_hex_string(inferior_pid));
if (args) /* FIXME, should be possible to leave suspended */
signal = atoi (args);
error ("Argument given to VxWorks \"kill\".");
if (from_tty)
- printf ("Killing pid 0x%x.\n", 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));
0, 0, /* insert_breakpoint, remove_breakpoint */
0, 0, 0, 0, 0, /* terminal stuff */
0, /* vx_kill, */
- vx_load_command, add_syms_addr_command,
- 0, /* call_function */
+ vx_load_command,
vx_lookup_symbol,
vx_create_inferior, 0, /* mourn_inferior */
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_insert_breakpoint, vx_remove_breakpoint,
0, 0, 0, 0, 0, /* terminal stuff */
vx_kill,
- vx_load_command, add_syms_addr_command,
- call_function_by_hand, /* FIXME, calling fns is maybe botched? */
+ vx_load_command,
vx_lookup_symbol,
0, vx_mourn_inferior,
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 */
};
/* ==> Remember when reading at end of file, there are two "ops" structs here. */
projects / binutils-gdb.git / blobdiff