-#include "defs.h"
-#include "gdbcmd.h"
-#include "symtab.h"
-#include "value.h"
-#include <ctype.h>
-#include <string.h>
-#ifdef DYNAMIC_COMMAND_SUPPORT
-#include <dlfcn.h>
-#endif
-
-typedef unsigned long ulong;
-
-#ifdef DYNAMIC_COMMAND_SUPPORT
-static void
-dlopen_command PARAMS ((char *, int));
-#endif
-
-#ifdef DYNAMIC_COMMAND_SUPPORT
-/* ARGSUSED */
-static void
-dlopen_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- char *p;
- void *hdl;
- void (*sym)();
-
- if (arg == 0) {
- error ("No arguments specified.");
- return;
- }
- p = arg;
- while(*p != ' ' && *p != '\0')
- p++;
- if (*p != ' ') {
- error ("Not enough arguments.");
- return;
- }
- *p++ = '\0';
-
- hdl = dlopen(arg, RTLD_NOW);
- if (hdl == NULL) {
- fprintf(stderr, "%s: %s\n", arg, dlerror());
- return;
- }
- sym = dlsym(hdl, p);
-
- if (sym == NULL) {
- fprintf(stderr, "%s: %s\n", p, dlerror());
- return;
- }
-
- sym();
-}
-#endif
-
-static void
-local_shell_escape (char *arg)
-{
-#ifdef CANT_FORK
- /* FIXME: what about errors (I don't know how GO32 system() handles
- them)? */
- system (arg);
-#else /* Can fork. */
- int rc, status, pid;
- char *p, *user_shell;
-
- if ((user_shell = (char *) getenv ("SHELL")) == NULL)
- user_shell = "/bin/sh";
-
- /* Get the name of the shell for arg0 */
- if ((p = strrchr (user_shell, '/')) == NULL)
- p = user_shell;
- else
- p++; /* Get past '/' */
-
- if ((pid = fork()) == 0)
- {
- if (!arg)
- execl (user_shell, p, 0);
- else
- execl (user_shell, p, "-c", arg, 0);
-
- fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell,
- safe_strerror (errno));
- gdb_flush (gdb_stderr);
- _exit (0177);
- }
-
- if (pid != -1)
- while ((rc = wait (&status)) != pid && rc != -1)
- ;
- else
- error ("Fork failed");
-#endif /* Can fork. */
-}
-
-static void
-GetClassName(long objectID, char* name)
-{
- register value_ptr val;
- register struct symbol *sym;
- struct minimal_symbol *msymbol;
- struct type *type;
- value_ptr blocklen;
- LONGEST maddr;
-
- /* Find the address of RemoteGetClassName in the inferior. */
-
- sym = lookup_symbol ("RemoteGetClassName", 0, VAR_NAMESPACE, 0, NULL);
- if (sym != NULL)
- {
- if (SYMBOL_CLASS (sym) != LOC_BLOCK)
- {
- error ("\"RemoteGetClassName\" exists in this program but is not a function.");
- }
- val = value_of_variable (sym, NULL);
- }
- else
- {
- msymbol = lookup_minimal_symbol ("RemoteGetClassName", "", (struct objfile *) NULL);
- if (msymbol != NULL)
- {
- type = lookup_pointer_type (builtin_type_char);
- type = lookup_function_type (type);
- type = lookup_pointer_type (type);
- maddr = (LONGEST) SYMBOL_VALUE_ADDRESS (msymbol);
- val = value_from_longest (type, maddr);
- }
- else
- {
- error ("evaluation of this expression requires the program to have a function \"RemoteGetClassName\".");
- }
- }
-
- blocklen = value_from_longest (builtin_type_int, (LONGEST) objectID);
- val = call_function_by_hand (val, 1, &blocklen);
- if (value_logical_not (val))
- {
- error ("Could not get class name.");
- }
- read_memory(value_as_pointer(val), name, 32);
-
-}
-
-static CORE_ADDR
-GetBasePtr(long objectID)
-{
- register value_ptr val;
- register struct symbol *sym;
- struct minimal_symbol *msymbol;
- struct type *type;
- value_ptr blocklen;
- LONGEST maddr;
-
- /* Find the address of RemoteGetBasePtr in the inferior. */
-
- sym = lookup_symbol ("RemoteGetBasePtr", 0, VAR_NAMESPACE, 0, NULL);
- if (sym != NULL)
- {
- if (SYMBOL_CLASS (sym) != LOC_BLOCK)
- {
- error ("\"RemoteGetBasePtr\" exists in this program but is not a function.");
- }
- val = value_of_variable (sym, NULL);
- }
- else
- {
- msymbol = lookup_minimal_symbol ("RemoteGetBasePtr", "", (struct objfile *) NULL);
- if (msymbol != NULL)
- {
- type = lookup_pointer_type (builtin_type_char);
- type = lookup_function_type (type);
- type = lookup_pointer_type (type);
- maddr = (LONGEST) SYMBOL_VALUE_ADDRESS (msymbol);
- val = value_from_longest (type, maddr);
- }
- else
- {
- error ("evaluation of this expression requires the program to have a function \"RemoteGetBasePtr\".");
- }
- }
-
- blocklen = value_from_longest (builtin_type_int, (LONGEST) objectID);
- val = call_function_by_hand (val, 1, &blocklen);
- if (value_logical_not (val))
- {
- error ("Could not get base pointer to object.");
- }
- return value_as_pointer(val);
-}
-
-static void
-dump_extra_data(CORE_ADDR addr, ulong length)
-{
- ulong buf[5], chunk, i;
- char *p;
-
- while (length > 3) {
- chunk = (length > 16) ? 16 : length;
-
- memset(buf, 0, 5*sizeof(long));
- read_memory(addr, &buf, chunk);
- fprintf(gdb_stdout, "%08lx %08lx %08lx %08lx | ", buf[0],
- buf[1], buf[2], buf[3]);
- for (i = 0, p = (char*)buf; i < chunk; i++, p++) {
- if (!isprint(*p))
- *p = '.';
- }
- fprintf(gdb_stdout, "%s |\n", buf);
- addr += chunk;
- length -= chunk;
- }
-}
-
-struct type *type_of_object(CORE_ADDR object)
-{
- char className[32], classAllFieldsName[128];
- struct type *type = NULL;
- GetClassName(object, className);
- sprintf(classAllFieldsName, "%s_AllFields", className);
-
- type = lookup_typename(classAllFieldsName, (struct block *)NULL, 0);
- return lookup_pointer_type(type);
-}
-
-CORE_ADDR baseptr_of_object(ulong object)
-{
- return GetBasePtr(object) + 12;
-}
-
-/* ARGSUSED */
-static void
-print_object (arg, dump)
- char *arg;
- int dump;
-{
- CORE_ADDR addr;
- ulong object, objectLength, typeLength = 0;
- char className[32], classAllFieldsName[128];
- struct type* type = NULL;
-
- object = parse_and_eval_address(arg);
-
- GetClassName(object, className);
- sprintf(classAllFieldsName, "%s_AllFields", className);
-
- type = lookup_typename(classAllFieldsName, (struct block *)NULL, 0);
- typeLength = TYPE_LENGTH(type);
- addr = GetBasePtr(object);
- read_memory(addr, &objectLength, 4);
- objectLength -= 12;
- addr += 12;
- if (TYPE_CODE(type) != TYPE_CODE_UNDEF && !(TYPE_FLAGS(type)&TYPE_FLAG_STUB)) {
- if (dump) {
- value_ptr valptr = value_at_lazy(type, addr);
- int histindex = record_latest_value(valptr);
- printf_filtered("Object 0x%08lx at address 0x%08lx of class %s\n",
- object, addr, className);
- if (histindex >= 0) printf_filtered ("$%d = ", histindex);
- value_print(valptr, gdb_stdout, 0, Val_prettyprint);
- objectLength -= typeLength;
- addr += typeLength;
- printf_filtered("\n");
- dump_extra_data(addr, objectLength);
- printf_filtered("\n");
- } else {
- value_ptr valptr = value_from_longest(lookup_pointer_type(type), addr);
- int histindex = record_latest_value(valptr);
- if (histindex >= 0) printf_filtered ("$%d = ", histindex);
- value_print(valptr, gdb_stdout, 0, Val_prettyprint);
- printf_filtered("\n");
- }
- }
-}
-
-/* ARGSUSED */
-static void
-dobj_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- print_object(arg, 1);
-}
-
-/* ARGSUSED */
-static void
-pobj_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- print_object(arg, 0);
-}
-
-/* ARGSUSED */
-static void
-getint_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- char shellCommand[128];
-
- sprintf(shellCommand, "getint %s", arg);
- local_shell_escape(shellCommand);
-}
-
-/* ARGSUSED */
-static void
-getindexical_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- char shellCommand[128];
-
- sprintf(shellCommand, "getindexical %s", arg);
- local_shell_escape(shellCommand);
-}
-
-/* ARGSUSED */
-static void
-exc_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- char shellCommand[128];
- ulong exception;
-
- sprintf(shellCommand, "getexc %s", arg);
- local_shell_escape(shellCommand);
-}
-
-static CORE_ADDR dispatch_method_addr = -1, dispatch_inherited_addr = -1, dispatch_delegated_addr = -1, dispatch_intrinsic_addr = -1;
-CORE_ADDR do_dispatch_method_addr = -1, do_dispatch_intrinsic_addr = -1;
-
-static CORE_ADDR
-lookup_address(const char *name)
-{
- struct symbol *sym = lookup_symbol(name, NULL, VAR_NAMESPACE, NULL, NULL);
- if (sym)
- return BLOCK_START(SYMBOL_BLOCK_VALUE(sym));
- else
- {
-/* printf("Couldn't find %s!\n", name); */
- return -1;
- }
-}
-
-void
-init_magic()
-{
- dispatch_method_addr = lookup_address("__DispatchMethod");
- dispatch_inherited_addr = lookup_address("__DispatchInherited");
- dispatch_delegated_addr = lookup_address("__DispatchDelegated");
- dispatch_intrinsic_addr = lookup_address("__DispatchIntrinsic");
- do_dispatch_method_addr = lookup_address("__DoTheDispatch");
- do_dispatch_intrinsic_addr = lookup_address("__DoDispatchIntrinsic");
-}
-
-int
-is_dispatch(CORE_ADDR pc)
-{
- return (pc == dispatch_method_addr) || (pc == dispatch_inherited_addr) || (pc == dispatch_delegated_addr);
-}
-
-int
-is_dispatch_intrinsic(CORE_ADDR pc)
-{
- return pc == dispatch_intrinsic_addr;
-}
-
-/* If we are stopped at one of the entry points to the dispatcher, we want to continue until just
- before we jump to the implementation. If we are at that point, we want to continue until we
- actually get to the implementation. Likewise for the intrinsic dispatcher
- */
-CORE_ADDR
-deal_with_dispatch(CORE_ADDR stop_pc)
-{
- if (is_dispatch(stop_pc))
- return do_dispatch_method_addr;
- else if (is_dispatch_intrinsic(stop_pc))
- return do_dispatch_intrinsic_addr;
- else if (stop_pc == do_dispatch_method_addr)
- /* This assumes that we branch through t6 */
- return read_register(14);
- else if (stop_pc == do_dispatch_intrinsic_addr)
- /* This assumes that we branch through t0 */
- return read_register(8);
- else
- return 0;
-}
-
-void
-magic_create_inferior_hook()
-{
- struct symbol *sym = lookup_symbol("gHandleError", NULL, VAR_NAMESPACE, NULL, NULL);
- if (sym)
- {
- CORE_ADDR addr = SYMBOL_VALUE(sym);
- unsigned long errorDebugger = 2;
- target_write_memory(addr, &errorDebugger, 4);
- }
-
- init_magic ();
-}
-
-
-_initialize_magic ()
-{
- add_com ("dobj", class_support, dobj_command, "Display Object Contents");
- add_com ("pobj", class_support, pobj_command, "Print object base pointer");
- add_com ("getint", class_support, getint_command, "Convert intrinsic name to number or vice versa.");
- add_com ("getindexical", class_support, getindexical_command, "Convert indexical name to number or vice versa.");
- add_com ("exc", class_support, exc_command, "Convert exception name to number or vice versa.");
-
-#ifdef DYNAMIC_COMMAND_SUPPORT
- add_com ("dlopen", class_support, dlopen_command,
- "Load the dynamic library specified and execute the specified symbol");
-#endif
-}
projects / deliverable / binutils-gdb.git / blobdiff