static int
there_is_a_visible_common_named (char *comname)
{
SAVED_F77_COMMON_PTR the_common;
struct frame_info *fi;
char *funname = 0;
struct symbol *func;
if (comname == NULL)
error (_("Cannot deal with NULL common name!"));
fi = deprecated_selected_frame;
if (fi == NULL)
error (_("No frame selected"));
/* The following is generally ripped off from stack.c's routine
print_frame_info() */
func = find_pc_function (fi->pc);
if (func)
{
/* In certain pathological cases, the symtabs give the wrong
function (when we are in the first function in a file which
is compiled without debugging symbols, the previous function
is compiled with debugging symbols, and the "foo.o" symbol
that is supposed to tell us where the file with debugging symbols
ends has been truncated by ar because it is longer than 15
characters).
So look in the minimal symbol tables as well, and if it comes
up with a larger address for the function use that instead.
I don't think this can ever cause any problems; there shouldn't
be any minimal symbols in the middle of a function.
FIXME: (Not necessarily true. What about text labels) */
struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (fi->pc);
/* APPLE LOCAL begin address ranges */
if (msymbol != NULL
&& (SYMBOL_VALUE_ADDRESS (msymbol)
> BLOCK_LOWEST_PC (SYMBOL_BLOCK_VALUE (func))))
/* APPLE LOCAL end address ranges */
funname = DEPRECATED_SYMBOL_NAME (msymbol);
else
funname = DEPRECATED_SYMBOL_NAME (func);
}
else
{
struct minimal_symbol *msymbol =
lookup_minimal_symbol_by_pc (fi->pc);
if (msymbol != NULL)
funname = DEPRECATED_SYMBOL_NAME (msymbol);
}
the_common = find_common_for_function (comname, funname);
return (the_common ? 1 : 0);
}
char *
arm_throw_catch_find_typeinfo (struct frame_info *curr_frame,
int exception_type)
{
struct minimal_symbol *typeinfo_sym = NULL;
ULONGEST typeinfo_ptr;
char *typeinfo_str;
if (exception_type == EX_EVENT_THROW)
{
frame_unwind_unsigned_register (curr_frame,
ARM_R0_REGNUM + 1,
&typeinfo_ptr);
typeinfo_sym = lookup_minimal_symbol_by_pc (typeinfo_ptr);
}
else
{
/* This is hacky, the runtime code gets a pointer to an _Unwind_Exception,
which is actually contained in the __cxa_exception that we want. But
the function that does the cast is a static inline, so we can't see it.
FIXME: we need to get the runtime to keep this so we aren't relying on
the particular layout of the __cxa_exception...
Anyway, then the first field of __cxa_exception is the type object. */
ULONGEST type_obj_addr = 0;
frame_unwind_unsigned_register (curr_frame,
ARM_R0_REGNUM,
&typeinfo_ptr);
/* This is also a bit bogus. We assume that an unsigned integer is the
same size as an address on our system. */
if (safe_read_memory_unsigned_integer
(typeinfo_ptr - 44, 4, &type_obj_addr))
typeinfo_sym = lookup_minimal_symbol_by_pc (type_obj_addr);
}
if (!typeinfo_sym)
return NULL;
typeinfo_str =
typeinfo_sym->ginfo.language_specific.cplus_specific.demangled_name;
if ((typeinfo_str == NULL)
|| (strstr (typeinfo_str, "typeinfo for ") != typeinfo_str))
return NULL;
return typeinfo_str + strlen ("typeinfo for ");
}
struct call_site *
call_site_for_pc (struct gdbarch *gdbarch, CORE_ADDR pc)
{
struct symtab *symtab;
void **slot = NULL;
/* -1 as tail call PC can be already after the compilation unit range. */
symtab = find_pc_symtab (pc - 1);
if (symtab != NULL && symtab->call_site_htab != NULL)
slot = htab_find_slot (symtab->call_site_htab, &pc, NO_INSERT);
if (slot == NULL)
{
struct bound_minimal_symbol msym = lookup_minimal_symbol_by_pc (pc);
/* DW_TAG_gnu_call_site will be missing just if GCC could not determine
the call target. */
throw_error (NO_ENTRY_VALUE_ERROR,
_("DW_OP_GNU_entry_value resolving cannot find "
"DW_TAG_GNU_call_site %s in %s"),
paddress (gdbarch, pc),
(msym.minsym == NULL ? "???"
: SYMBOL_PRINT_NAME (msym.minsym)));
}
return *slot;
}
static CORE_ADDR
amd64_windows_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
{
CORE_ADDR destination = 0;
struct gdbarch *gdbarch = get_frame_arch (frame);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
/* Check for jmp *<offset>(%rip) (jump near, absolute indirect (/4)). */
if (pc && read_memory_unsigned_integer (pc, 2, byte_order) == 0x25ff)
{
/* Get opcode offset and see if we can find a reference in our data. */
ULONGEST offset
= read_memory_unsigned_integer (pc + 2, 4, byte_order);
/* Get address of function pointer at end of pc. */
CORE_ADDR indirect_addr = pc + offset + 6;
struct minimal_symbol *indsym
= (indirect_addr
? lookup_minimal_symbol_by_pc (indirect_addr).minsym
: NULL);
const char *symname = indsym ? MSYMBOL_LINKAGE_NAME (indsym) : NULL;
if (symname)
{
if (strncmp (symname, "__imp_", 6) == 0
|| strncmp (symname, "_imp_", 5) == 0)
destination
= read_memory_unsigned_integer (indirect_addr, 8, byte_order);
}
}
return destination;
}
static CORE_ADDR
amd64_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
gdb_byte op;
target_read_memory (pc, &op, 1);
if (op == 0xe8)
{
gdb_byte buf[4];
if (target_read_memory (pc + 1, buf, sizeof buf) == 0)
{
struct bound_minimal_symbol s;
CORE_ADDR call_dest;
call_dest = pc + 5 + extract_signed_integer (buf, 4, byte_order);
s = lookup_minimal_symbol_by_pc (call_dest);
if (s.minsym != NULL
&& MSYMBOL_LINKAGE_NAME (s.minsym) != NULL
&& strcmp (MSYMBOL_LINKAGE_NAME (s.minsym), "__main") == 0)
pc += 5;
}
}
return pc;
}
CORE_ADDR
arm_wince_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
ULONGEST this_instr;
this_instr = read_memory_unsigned_integer (pc, 4, byte_order);
/* bl offset <__gccmain> */
if ((this_instr & 0xfff00000) == 0xeb000000)
{
#define sign_extend(V, N) \
(((long) (V) ^ (1L << ((N) - 1))) - (1L << ((N) - 1)))
long offset = sign_extend (this_instr & 0x000fffff, 23) << 2;
CORE_ADDR call_dest = (pc + 8 + offset) & 0xffffffffU;
struct minimal_symbol *s = lookup_minimal_symbol_by_pc (call_dest);
if (s != NULL
&& SYMBOL_LINKAGE_NAME (s) != NULL
&& strcmp (SYMBOL_LINKAGE_NAME (s), "__gccmain") == 0)
pc += 4;
}
return pc;
}
CORE_ADDR
get_pc_function_start (CORE_ADDR pc)
{
struct block *bl;
struct minimal_symbol *msymbol;
bl = block_for_pc (pc);
if (bl)
{
struct symbol *symbol = block_function (bl);
if (symbol)
{
bl = SYMBOL_BLOCK_VALUE (symbol);
/* APPLE LOCAL begin address ranges */
return BLOCK_LOWEST_PC (bl);
/* APPLE LOCAL end address ranges */
}
}
msymbol = lookup_minimal_symbol_by_pc (pc);
if (msymbol)
{
CORE_ADDR fstart = SYMBOL_VALUE_ADDRESS (msymbol);
if (find_pc_section (fstart))
return fstart;
}
return 0;
}
CORE_ADDR
get_pc_function_start (CORE_ADDR pc)
{
struct block *bl;
struct minimal_symbol *msymbol;
bl = block_for_pc (pc);
if (bl)
{
struct symbol *symbol = block_linkage_function (bl);
if (symbol)
{
bl = SYMBOL_BLOCK_VALUE (symbol);
return BLOCK_START (bl);
}
}
msymbol = lookup_minimal_symbol_by_pc (pc);
if (msymbol)
{
CORE_ADDR fstart = SYMBOL_VALUE_ADDRESS (msymbol);
if (find_pc_section (fstart))
return fstart;
}
return 0;
}
static const char *
get_function_name (CORE_ADDR funaddr, char *buf, int buf_size)
{
{
struct symbol *symbol = find_pc_function (funaddr);
if (symbol)
return SYMBOL_PRINT_NAME (symbol);
}
{
/* Try the minimal symbols. */
struct bound_minimal_symbol msymbol = lookup_minimal_symbol_by_pc (funaddr);
if (msymbol.minsym)
return MSYMBOL_PRINT_NAME (msymbol.minsym);
}
{
char *tmp = xstrprintf (_(RAW_FUNCTION_ADDRESS_FORMAT),
hex_string (funaddr));
gdb_assert (strlen (tmp) + 1 <= buf_size);
strcpy (buf, tmp);
xfree (tmp);
return buf;
}
}
static int
convert_code_addr_to_desc_addr (CORE_ADDR code_addr, CORE_ADDR *desc_addr)
{
struct obj_section *dot_fn_section;
struct minimal_symbol *dot_fn;
struct minimal_symbol *fn;
CORE_ADDR toc;
/* Find the minimal symbol that corresponds to CODE_ADDR (should
have a name of the form ".FN"). */
dot_fn = lookup_minimal_symbol_by_pc (code_addr);
if (dot_fn == NULL || SYMBOL_LINKAGE_NAME (dot_fn)[0] != '.')
return 0;
/* Get the section that contains CODE_ADDR. Need this for the
"objfile" that it contains. */
dot_fn_section = find_pc_section (code_addr);
if (dot_fn_section == NULL || dot_fn_section->objfile == NULL)
return 0;
/* Now find the corresponding "FN" (dropping ".") minimal symbol's
address. Only look for the minimal symbol in ".FN"'s object file
- avoids problems when two object files (i.e., shared libraries)
contain a minimal symbol with the same name. */
fn = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (dot_fn) + 1, NULL,
dot_fn_section->objfile);
if (fn == NULL)
return 0;
/* Found a descriptor. */
(*desc_addr) = SYMBOL_VALUE_ADDRESS (fn);
return 1;
}
void
symify(const char *s, char **function, char **file, int *line, int _diff)
{
struct minimal_symbol *msymbol = NULL;
struct symtab_and_line sal;
struct symtabs_and_lines sals;
struct symtab *symtab;
struct symbol *symbol;
unsigned long core;
long diff;
char *tmp = alloca(100);
int sl;
char diff_string[100];
*function = NULL;
*file = NULL;
sscanf(s, "%lx", &core);
core += _diff;
sprintf(tmp, "*%ld", core);
sals = decode_line_spec(tmp, 0);
if (!sals.sals[0].symtab)
{
msymbol = lookup_minimal_symbol_by_pc(core);
if (!msymbol)
{
*line = 0;
return;
}
diff = core - SYMBOL_VALUE_ADDRESS(msymbol);
sl = strlen(SYMBOL_NAME(msymbol));
sprintf(diff_string, "%+ld", diff);
sl += strlen(diff_string);
*function = (char *) malloc(sl + 1);
strcpy(*function, SYMBOL_NAME(msymbol));
strcat(*function, diff_string);
*line = 0;
return;
}
sal = find_pc_line(core, 1);
symbol = find_pc_function(core);
symtab = sal.symtab;
sl = strlen(SYMBOL_SOURCE_NAME(symbol));
*function = (char *) malloc(sl + 1);
strcpy(*function, SYMBOL_SOURCE_NAME(symbol));
sl = strlen(symtab->filename);
*file = (char *) malloc(sl + 1);
strcpy(*file, symtab->filename);
*line = sal.line;
}
static int
tsd_cb (thread_key_t key, void (*destructor)(void *), void *ignore)
{
struct minimal_symbol *ms;
char *name;
ms = lookup_minimal_symbol_by_pc (extract_func_ptr (&destructor));
if (!ms)
name = "???";
else
name = SYMBOL_PRINT_NAME (ms);
printf_filtered ("Destructor %p <%s>\n", destructor, name);
return 0;
}
static int
tsd_cb (thread_key_t key, void (*destructor)(void *), void *ignore)
{
struct minimal_symbol *ms;
char *name;
ms = lookup_minimal_symbol_by_pc (
extract_typed_address(&destructor, builtin_type_void_func_ptr));
if (!ms)
name = "???";
else
name = DEPRECATED_SYMBOL_NAME (ms);
printf_filtered ("Key %d, destructor %p <%s>\n", key, destructor, name);
return 0;
}
static CORE_ADDR
arm_pe_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
{
struct gdbarch *gdbarch = get_frame_arch (frame);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
ULONGEST indirect;
struct bound_minimal_symbol indsym;
const char *symname;
CORE_ADDR next_pc;
/* The format of an ARM DLL trampoline is:
ldr ip, [pc]
ldr pc, [ip]
.dw __imp_<func>
*/
if (pc == 0
|| read_memory_unsigned_integer (pc + 0, 4, byte_order) != 0xe59fc000
|| read_memory_unsigned_integer (pc + 4, 4, byte_order) != 0xe59cf000)
return 0;
indirect = read_memory_unsigned_integer (pc + 8, 4, byte_order);
if (indirect == 0)
return 0;
indsym = lookup_minimal_symbol_by_pc (indirect);
if (indsym.minsym == NULL)
return 0;
symname = MSYMBOL_LINKAGE_NAME (indsym.minsym);
if (symname == NULL || !startswith (symname, "__imp_"))
return 0;
next_pc = read_memory_unsigned_integer (indirect, 4, byte_order);
if (next_pc != 0)
return next_pc;
/* Check with the default arm gdbarch_skip_trampoline. */
return arm_skip_stub (frame, pc);
}
static int
powerpc_linux_in_dynsym_resolve_code (CORE_ADDR pc)
{
struct bound_minimal_symbol sym;
/* Check whether PC is in the dynamic linker. This also checks
whether it is in the .plt section, used by non-PIC executables. */
if (svr4_in_dynsym_resolve_code (pc))
return 1;
/* Check if we are in the resolver. */
sym = lookup_minimal_symbol_by_pc (pc);
if (sym.minsym != NULL
&& (strcmp (MSYMBOL_LINKAGE_NAME (sym.minsym), "__glink") == 0
|| strcmp (MSYMBOL_LINKAGE_NAME (sym.minsym),
"__glink_PLTresolve") == 0))
return 1;
return 0;
}
static CORE_ADDR
ppc_elfv2_skip_entrypoint (struct gdbarch *gdbarch, CORE_ADDR pc)
{
struct bound_minimal_symbol fun;
int local_entry_offset = 0;
fun = lookup_minimal_symbol_by_pc (pc);
if (fun.minsym == NULL)
return pc;
/* See ppc_elfv2_elf_make_msymbol_special for how local entry point
offset values are encoded. */
if (MSYMBOL_TARGET_FLAG_1 (fun.minsym))
local_entry_offset = 8;
if (BMSYMBOL_VALUE_ADDRESS (fun) <= pc
&& pc < BMSYMBOL_VALUE_ADDRESS (fun) + local_entry_offset)
return BMSYMBOL_VALUE_ADDRESS (fun) + local_entry_offset;
return pc;
}
static CORE_ADDR
gnuv3_skip_trampoline (struct frame_info *frame, CORE_ADDR stop_pc)
{
CORE_ADDR real_stop_pc, method_stop_pc;
struct gdbarch *gdbarch = get_frame_arch (frame);
struct minimal_symbol *thunk_sym, *fn_sym;
struct obj_section *section;
char *thunk_name, *fn_name;
real_stop_pc = gdbarch_skip_trampoline_code (gdbarch, frame, stop_pc);
if (real_stop_pc == 0)
real_stop_pc = stop_pc;
/* Find the linker symbol for this potential thunk. */
thunk_sym = lookup_minimal_symbol_by_pc (real_stop_pc);
section = find_pc_section (real_stop_pc);
if (thunk_sym == NULL || section == NULL)
return 0;
/* The symbol's demangled name should be something like "virtual
thunk to FUNCTION", where FUNCTION is the name of the function
being thunked to. */
thunk_name = SYMBOL_DEMANGLED_NAME (thunk_sym);
if (thunk_name == NULL || strstr (thunk_name, " thunk to ") == NULL)
return 0;
fn_name = strstr (thunk_name, " thunk to ") + strlen (" thunk to ");
fn_sym = lookup_minimal_symbol (fn_name, NULL, section->objfile);
if (fn_sym == NULL)
return 0;
method_stop_pc = SYMBOL_VALUE_ADDRESS (fn_sym);
real_stop_pc = gdbarch_skip_trampoline_code
(gdbarch, frame, method_stop_pc);
if (real_stop_pc == 0)
real_stop_pc = method_stop_pc;
return real_stop_pc;
}
CORE_ADDR
get_pc_function_start (CORE_ADDR pc)
{
register struct block *bl;
register struct symbol *symbol;
register struct minimal_symbol *msymbol;
CORE_ADDR fstart;
if ((bl = block_for_pc (pc)) != NULL &&
(symbol = block_function (bl)) != NULL)
{
bl = SYMBOL_BLOCK_VALUE (symbol);
fstart = BLOCK_START (bl);
}
else if ((msymbol = lookup_minimal_symbol_by_pc (pc)) != NULL)
{
fstart = SYMBOL_VALUE_ADDRESS (msymbol);
}
else
{
fstart = 0;
}
return (fstart);
}
int
pascal_val_print (struct type *type, const gdb_byte *valaddr,
int embedded_offset, CORE_ADDR address,
struct ui_file *stream, int format, int deref_ref,
int recurse, enum val_prettyprint pretty)
{
unsigned int i = 0; /* Number of characters printed */
unsigned len;
struct type *elttype;
unsigned eltlen;
int length_pos, length_size, string_pos;
int char_size;
LONGEST val;
CORE_ADDR addr;
CHECK_TYPEDEF (type);
switch (TYPE_CODE (type))
{
case TYPE_CODE_ARRAY:
if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0)
{
elttype = check_typedef (TYPE_TARGET_TYPE (type));
eltlen = TYPE_LENGTH (elttype);
len = TYPE_LENGTH (type) / eltlen;
if (prettyprint_arrays)
{
print_spaces_filtered (2 + 2 * recurse, stream);
}
/* For an array of chars, print with string syntax. */
if (eltlen == 1
&& ((TYPE_CODE (elttype) == TYPE_CODE_INT)
|| ((current_language->la_language == language_pascal)
&& (TYPE_CODE (elttype) == TYPE_CODE_CHAR)))
&& (format == 0 || format == 's'))
{
/* If requested, look for the first null char and only print
elements up to it. */
if (stop_print_at_null)
{
unsigned int temp_len;
/* Look for a NULL char. */
for (temp_len = 0;
(valaddr + embedded_offset)[temp_len]
&& temp_len < len && temp_len < print_max;
temp_len++);
len = temp_len;
}
LA_PRINT_STRING (stream, valaddr + embedded_offset, len, 1, 0);
i = len;
}
else
{
fprintf_filtered (stream, "{");
/* If this is a virtual function table, print the 0th
entry specially, and the rest of the members normally. */
if (pascal_object_is_vtbl_ptr_type (elttype))
{
i = 1;
fprintf_filtered (stream, "%d vtable entries", len - 1);
}
else
{
i = 0;
}
val_print_array_elements (type, valaddr + embedded_offset, address, stream,
format, deref_ref, recurse, pretty, i);
fprintf_filtered (stream, "}");
}
break;
}
/* Array of unspecified length: treat like pointer to first elt. */
addr = address;
goto print_unpacked_pointer;
case TYPE_CODE_PTR:
if (format && format != 's')
{
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
break;
}
if (vtblprint && pascal_object_is_vtbl_ptr_type (type))
{
/* Print the unmangled name if desired. */
/* Print vtable entry - we only get here if we ARE using
-fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
/* Extract the address, assume that it is unsigned. */
print_address_demangle (extract_unsigned_integer (valaddr + embedded_offset, TYPE_LENGTH (type)),
stream, demangle);
break;
}
elttype = check_typedef (TYPE_TARGET_TYPE (type));
{
addr = unpack_pointer (type, valaddr + embedded_offset);
print_unpacked_pointer:
elttype = check_typedef (TYPE_TARGET_TYPE (type));
if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
{
/* Try to print what function it points to. */
print_address_demangle (addr, stream, demangle);
/* Return value is irrelevant except for string pointers. */
return (0);
}
if (addressprint && format != 's')
{
fputs_filtered (paddress (addr), stream);
}
/* For a pointer to char or unsigned char, also print the string
pointed to, unless pointer is null. */
if (TYPE_LENGTH (elttype) == 1
&& (TYPE_CODE (elttype) == TYPE_CODE_INT
|| TYPE_CODE(elttype) == TYPE_CODE_CHAR)
&& (format == 0 || format == 's')
&& addr != 0)
{
/* no wide string yet */
i = val_print_string (addr, -1, 1, stream);
}
/* also for pointers to pascal strings */
/* Note: this is Free Pascal specific:
as GDB does not recognize stabs pascal strings
Pascal strings are mapped to records
with lowercase names PM */
if (is_pascal_string_type (elttype, &length_pos, &length_size,
&string_pos, &char_size, NULL)
&& addr != 0)
{
ULONGEST string_length;
void *buffer;
buffer = xmalloc (length_size);
read_memory (addr + length_pos, buffer, length_size);
string_length = extract_unsigned_integer (buffer, length_size);
xfree (buffer);
i = val_print_string (addr + string_pos, string_length, char_size, stream);
}
else if (pascal_object_is_vtbl_member (type))
{
/* print vtbl's nicely */
CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset);
struct minimal_symbol *msymbol =
lookup_minimal_symbol_by_pc (vt_address);
if ((msymbol != NULL)
&& (vt_address == SYMBOL_VALUE_ADDRESS (msymbol)))
{
fputs_filtered (" <", stream);
fputs_filtered (SYMBOL_PRINT_NAME (msymbol), stream);
fputs_filtered (">", stream);
}
if (vt_address && vtblprint)
{
struct value *vt_val;
struct symbol *wsym = (struct symbol *) NULL;
struct type *wtype;
struct block *block = (struct block *) NULL;
int is_this_fld;
if (msymbol != NULL)
wsym = lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol), block,
VAR_DOMAIN, &is_this_fld, NULL);
if (wsym)
{
wtype = SYMBOL_TYPE (wsym);
}
else
{
wtype = TYPE_TARGET_TYPE (type);
}
vt_val = value_at (wtype, vt_address);
common_val_print (vt_val, stream, format, deref_ref,
recurse + 1, pretty);
if (pretty)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 + 2 * recurse, stream);
}
}
}
/* Return number of characters printed, including the terminating
'\0' if we reached the end. val_print_string takes care including
the terminating '\0' if necessary. */
return i;
}
break;
case TYPE_CODE_REF:
elttype = check_typedef (TYPE_TARGET_TYPE (type));
if (addressprint)
{
fprintf_filtered (stream, "@");
/* Extract the address, assume that it is unsigned. */
fputs_filtered (paddress (
extract_unsigned_integer (valaddr + embedded_offset,
gdbarch_ptr_bit (current_gdbarch) / HOST_CHAR_BIT)), stream);
if (deref_ref)
fputs_filtered (": ", stream);
}
/* De-reference the reference. */
if (deref_ref)
{
if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
{
struct value *deref_val =
value_at
(TYPE_TARGET_TYPE (type),
unpack_pointer (lookup_pointer_type (builtin_type_void),
valaddr + embedded_offset));
common_val_print (deref_val, stream, format, deref_ref,
recurse + 1, pretty);
}
else
fputs_filtered ("???", stream);
}
break;
case TYPE_CODE_UNION:
if (recurse && !unionprint)
{
fprintf_filtered (stream, "{...}");
break;
}
/* Fall through. */
case TYPE_CODE_STRUCT:
if (vtblprint && pascal_object_is_vtbl_ptr_type (type))
{
/* Print the unmangled name if desired. */
/* Print vtable entry - we only get here if NOT using
-fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */
/* Extract the address, assume that it is unsigned. */
print_address_demangle
(extract_unsigned_integer (valaddr + embedded_offset + TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8,
TYPE_LENGTH (TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET))),
stream, demangle);
}
else
{
if (is_pascal_string_type (type, &length_pos, &length_size,
&string_pos, &char_size, NULL))
{
len = extract_unsigned_integer (valaddr + embedded_offset + length_pos, length_size);
LA_PRINT_STRING (stream, valaddr + embedded_offset + string_pos, len, char_size, 0);
}
else
pascal_object_print_value_fields (type, valaddr + embedded_offset, address, stream, format,
recurse, pretty, NULL, 0);
}
break;
case TYPE_CODE_ENUM:
if (format)
{
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
break;
}
len = TYPE_NFIELDS (type);
val = unpack_long (type, valaddr + embedded_offset);
for (i = 0; i < len; i++)
{
QUIT;
if (val == TYPE_FIELD_BITPOS (type, i))
{
break;
}
}
if (i < len)
{
fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
}
else
{
print_longest (stream, 'd', 0, val);
}
break;
case TYPE_CODE_FLAGS:
if (format)
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
else
val_print_type_code_flags (type, valaddr + embedded_offset, stream);
break;
case TYPE_CODE_FUNC:
if (format)
{
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
break;
}
/* FIXME, we should consider, at least for ANSI C language, eliminating
the distinction made between FUNCs and POINTERs to FUNCs. */
fprintf_filtered (stream, "{");
type_print (type, "", stream, -1);
fprintf_filtered (stream, "} ");
/* Try to print what function it points to, and its address. */
print_address_demangle (address, stream, demangle);
break;
case TYPE_CODE_BOOL:
format = format ? format : output_format;
if (format)
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
else
{
val = unpack_long (type, valaddr + embedded_offset);
if (val == 0)
fputs_filtered ("false", stream);
else if (val == 1)
fputs_filtered ("true", stream);
else
{
fputs_filtered ("true (", stream);
fprintf_filtered (stream, "%ld)", (long int) val);
}
}
break;
case TYPE_CODE_RANGE:
/* FIXME: create_range_type does not set the unsigned bit in a
range type (I think it probably should copy it from the target
type), so we won't print values which are too large to
fit in a signed integer correctly. */
/* FIXME: Doesn't handle ranges of enums correctly. (Can't just
print with the target type, though, because the size of our type
and the target type might differ). */
/* FALLTHROUGH */
case TYPE_CODE_INT:
format = format ? format : output_format;
if (format)
{
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
}
else
{
val_print_type_code_int (type, valaddr + embedded_offset, stream);
}
break;
case TYPE_CODE_CHAR:
format = format ? format : output_format;
if (format)
{
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
}
else
{
val = unpack_long (type, valaddr + embedded_offset);
if (TYPE_UNSIGNED (type))
fprintf_filtered (stream, "%u", (unsigned int) val);
else
fprintf_filtered (stream, "%d", (int) val);
fputs_filtered (" ", stream);
LA_PRINT_CHAR ((unsigned char) val, stream);
}
break;
case TYPE_CODE_FLT:
if (format)
{
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
}
else
{
print_floating (valaddr + embedded_offset, type, stream);
}
break;
case TYPE_CODE_BITSTRING:
case TYPE_CODE_SET:
elttype = TYPE_INDEX_TYPE (type);
CHECK_TYPEDEF (elttype);
if (TYPE_STUB (elttype))
{
fprintf_filtered (stream, "<incomplete type>");
gdb_flush (stream);
break;
}
else
{
struct type *range = elttype;
LONGEST low_bound, high_bound;
int i;
int is_bitstring = TYPE_CODE (type) == TYPE_CODE_BITSTRING;
int need_comma = 0;
if (is_bitstring)
fputs_filtered ("B'", stream);
else
fputs_filtered ("[", stream);
i = get_discrete_bounds (range, &low_bound, &high_bound);
maybe_bad_bstring:
if (i < 0)
{
fputs_filtered ("<error value>", stream);
goto done;
}
for (i = low_bound; i <= high_bound; i++)
{
int element = value_bit_index (type, valaddr + embedded_offset, i);
if (element < 0)
{
i = element;
goto maybe_bad_bstring;
}
if (is_bitstring)
fprintf_filtered (stream, "%d", element);
else if (element)
{
if (need_comma)
fputs_filtered (", ", stream);
print_type_scalar (range, i, stream);
need_comma = 1;
if (i + 1 <= high_bound && value_bit_index (type, valaddr + embedded_offset, ++i))
{
int j = i;
fputs_filtered ("..", stream);
while (i + 1 <= high_bound
&& value_bit_index (type, valaddr + embedded_offset, ++i))
j = i;
print_type_scalar (range, j, stream);
}
}
}
done:
if (is_bitstring)
fputs_filtered ("'", stream);
else
fputs_filtered ("]", stream);
}
break;
case TYPE_CODE_VOID:
fprintf_filtered (stream, "void");
break;
case TYPE_CODE_ERROR:
fprintf_filtered (stream, "<error type>");
break;
case TYPE_CODE_UNDEF:
/* This happens (without TYPE_FLAG_STUB set) on systems which don't use
dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
and no complete type for struct foo in that file. */
fprintf_filtered (stream, "<incomplete type>");
break;
default:
error (_("Invalid pascal type code %d in symbol table."), TYPE_CODE (type));
}
gdb_flush (stream);
return (0);
}
int
c_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
CORE_ADDR address, struct ui_file *stream, int format,
int deref_ref, int recurse, enum val_prettyprint pretty)
{
unsigned int i = 0; /* Number of characters printed */
unsigned len;
struct type *elttype;
unsigned eltlen;
LONGEST val;
CORE_ADDR addr;
int vector_int8s = 0;
int vector_floats = 0;
CHECK_TYPEDEF (type);
switch (TYPE_CODE (type))
{
case TYPE_CODE_ARRAY:
elttype = check_typedef (TYPE_TARGET_TYPE (type));
if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0)
{
eltlen = TYPE_LENGTH (elttype);
len = TYPE_LENGTH (type) / eltlen;
if (prettyprint_arrays)
{
print_spaces_filtered (2 + 2 * recurse, stream);
}
/* APPLE LOCAL: gdb will print the int8_t elements of a vector
register as a string or as characters -- neither of which is
what the user expects 99% of the time. Instead, detect that
we're looking at a vector's int8_t array and treat it
specially. */
if (eltlen == 1
&& TYPE_VECTOR (type)
&& TYPE_CODE (elttype) == TYPE_CODE_INT
&& format == 0)
{
vector_int8s = 1;
}
/* APPLE LOCAL: Detect if we're about to print an array of
v4_float or v2_doubles in a vector register */
if ((eltlen == 4 || eltlen == 8)
&& TYPE_VECTOR (type)
&& TYPE_CODE (elttype) == TYPE_CODE_FLT)
{
vector_floats = 1;
}
/* For an array of chars, print with string syntax. */
if (eltlen == 1 &&
((TYPE_CODE (elttype) == TYPE_CODE_INT)
|| ((current_language->la_language == language_m2)
&& (TYPE_CODE (elttype) == TYPE_CODE_CHAR)))
&& (format == 0 || format == 's')
&& vector_int8s == 0)
{
/* If requested, look for the first null char and only print
elements up to it. */
if (stop_print_at_null)
{
unsigned int temp_len;
/* Look for a NULL char. */
for (temp_len = 0;
(valaddr + embedded_offset)[temp_len]
&& temp_len < len && temp_len < print_max;
temp_len++);
len = temp_len;
}
LA_PRINT_STRING (stream, valaddr + embedded_offset, len, eltlen, 0);
i = len;
}
else
{
fprintf_filtered (stream, "{");
/* If this is a virtual function table, print the 0th
entry specially, and the rest of the members normally. */
if (cp_is_vtbl_ptr_type (elttype))
{
i = 1;
fprintf_filtered (stream, _("%d vtable entries"), len - 1);
}
else
{
i = 0;
}
/* If this is an array of int8_t's in a vector register,
force it to print as decimal by default, not as
decimal value + octal escaped char. */
if (format == 0 && vector_int8s)
format = 'd';
/* If this is an array of v4_float or v2_doubles in a vector
register, force it to print with the '%a' floating point hex
formatter when "p/x" is used. Default formatter remains the
'%g' style. */
if (format == 'x' && vector_floats)
format = 'A';
val_print_array_elements (type, valaddr + embedded_offset,
address, stream, format, deref_ref,
recurse, pretty, i);
fprintf_filtered (stream, "}");
}
break;
}
/* Array of unspecified length: treat like pointer to first elt. */
addr = address;
goto print_unpacked_pointer;
case TYPE_CODE_PTR:
if (format && format != 's')
{
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
break;
}
if (vtblprint && cp_is_vtbl_ptr_type (type))
{
/* Print the unmangled name if desired. */
/* Print vtable entry - we only get here if we ARE using
-fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
CORE_ADDR addr
= extract_typed_address (valaddr + embedded_offset, type);
print_function_pointer_address (addr, stream);
break;
}
elttype = check_typedef (TYPE_TARGET_TYPE (type));
if (TYPE_CODE (elttype) == TYPE_CODE_METHOD)
{
cp_print_class_method (valaddr + embedded_offset, type, stream);
}
else if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
{
cp_print_class_member (valaddr + embedded_offset,
TYPE_DOMAIN_TYPE (TYPE_TARGET_TYPE (type)),
stream, "&");
}
else
{
addr = unpack_pointer (type, valaddr + embedded_offset);
print_unpacked_pointer:
if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
{
/* Try to print what function it points to. */
print_function_pointer_address (addr, stream);
/* Return value is irrelevant except for string pointers. */
return (0);
}
if (addressprint && format != 's')
{
deprecated_print_address_numeric (addr, 1, stream);
}
/* For a pointer to char or unsigned char, also print the string
pointed to, unless pointer is null. */
/* FIXME: need to handle wchar_t here... */
if (TYPE_LENGTH (elttype) == 1
&& TYPE_CODE (elttype) == TYPE_CODE_INT
&& (format == 0 || format == 's')
&& addr != 0)
{
i = val_print_string (addr, -1, TYPE_LENGTH (elttype), stream);
}
else if (cp_is_vtbl_member (type))
{
/* print vtbl's nicely */
CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset);
struct minimal_symbol *msymbol =
lookup_minimal_symbol_by_pc (vt_address);
if ((msymbol != NULL) &&
(vt_address == SYMBOL_VALUE_ADDRESS (msymbol)))
{
fputs_filtered (" <", stream);
fputs_filtered (SYMBOL_PRINT_NAME (msymbol), stream);
fputs_filtered (">", stream);
}
if (vt_address && vtblprint)
{
struct value *vt_val;
struct symbol *wsym = (struct symbol *) NULL;
struct type *wtype;
struct block *block = (struct block *) NULL;
int is_this_fld;
if (msymbol != NULL)
wsym = lookup_symbol (DEPRECATED_SYMBOL_NAME (msymbol), block,
VAR_DOMAIN, &is_this_fld, NULL);
if (wsym)
{
wtype = SYMBOL_TYPE (wsym);
}
else
{
wtype = TYPE_TARGET_TYPE (type);
}
vt_val = value_at (wtype, vt_address);
common_val_print (vt_val, stream, format,
deref_ref, recurse + 1, pretty);
if (pretty)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 + 2 * recurse, stream);
}
}
}
/* Return number of characters printed, including the terminating
'\0' if we reached the end. val_print_string takes care including
the terminating '\0' if necessary. */
return i;
}
break;
case TYPE_CODE_MEMBER:
error (_("not implemented: member type in c_val_print"));
break;
case TYPE_CODE_REF:
elttype = check_typedef (TYPE_TARGET_TYPE (type));
if (TYPE_CODE (elttype) == TYPE_CODE_MEMBER)
{
cp_print_class_member (valaddr + embedded_offset,
TYPE_DOMAIN_TYPE (elttype),
stream, "");
break;
}
if (addressprint)
{
CORE_ADDR addr
= extract_typed_address (valaddr + embedded_offset, type);
fprintf_filtered (stream, "@");
deprecated_print_address_numeric (addr, 1, stream);
if (deref_ref)
fputs_filtered (": ", stream);
}
/* De-reference the reference. */
if (deref_ref)
{
if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
{
struct value *deref_val =
value_at
(TYPE_TARGET_TYPE (type),
unpack_pointer (lookup_pointer_type (builtin_type_void),
valaddr + embedded_offset));
common_val_print (deref_val, stream, format, deref_ref,
recurse, pretty);
}
else
fputs_filtered ("???", stream);
}
break;
case TYPE_CODE_UNION:
if (recurse && !unionprint)
{
fprintf_filtered (stream, "{...}");
break;
}
/* Fall through. */
case TYPE_CODE_STRUCT:
/*FIXME: Abstract this away */
if (vtblprint && cp_is_vtbl_ptr_type (type))
{
/* Print the unmangled name if desired. */
/* Print vtable entry - we only get here if NOT using
-fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */
int offset = (embedded_offset +
TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8);
struct type *field_type = TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET);
CORE_ADDR addr
= extract_typed_address (valaddr + offset, field_type);
print_function_pointer_address (addr, stream);
}
else
cp_print_value_fields (type, type, valaddr, embedded_offset, address, stream, format,
recurse, pretty, NULL, 0);
break;
case TYPE_CODE_ENUM:
if (format)
{
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
break;
}
len = TYPE_NFIELDS (type);
val = unpack_long (type, valaddr + embedded_offset);
for (i = 0; i < len; i++)
{
QUIT;
if (val == TYPE_FIELD_BITPOS (type, i))
{
break;
}
}
if (i < len)
{
fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
}
else
{
print_longest (stream, 'd', 0, val);
}
break;
case TYPE_CODE_FUNC:
if (format)
{
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
break;
}
/* FIXME, we should consider, at least for ANSI C language, eliminating
the distinction made between FUNCs and POINTERs to FUNCs. */
fprintf_filtered (stream, "{");
type_print (type, "", stream, -1);
fprintf_filtered (stream, "} ");
/* Try to print what function it points to, and its address. */
print_address_demangle (address, stream, demangle);
break;
case TYPE_CODE_BOOL:
format = format ? format : output_format;
if (format)
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
else
{
val = unpack_long (type, valaddr + embedded_offset);
if (val == 0)
fputs_filtered ("false", stream);
else if (val == 1)
fputs_filtered ("true", stream);
else
print_longest (stream, 'd', 0, val);
}
break;
case TYPE_CODE_RANGE:
/* FIXME: create_range_type does not set the unsigned bit in a
range type (I think it probably should copy it from the target
type), so we won't print values which are too large to
fit in a signed integer correctly. */
/* FIXME: Doesn't handle ranges of enums correctly. (Can't just
print with the target type, though, because the size of our type
and the target type might differ). */
/* FALLTHROUGH */
case TYPE_CODE_INT:
format = format ? format : output_format;
if (format)
{
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
}
else
{
val_print_type_code_int (type, valaddr + embedded_offset, stream);
/* C and C++ has no single byte int type, char is used instead.
Since we don't know whether the value is really intended to
be used as an integer or a character, print the character
equivalent as well. */
if (TYPE_LENGTH (type) == 1)
{
fputs_filtered (" ", stream);
LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr + embedded_offset),
stream);
}
}
break;
case TYPE_CODE_CHAR:
format = format ? format : output_format;
if (format)
{
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
}
else
{
val = unpack_long (type, valaddr + embedded_offset);
if (TYPE_UNSIGNED (type))
fprintf_filtered (stream, "%u", (unsigned int) val);
else
fprintf_filtered (stream, "%d", (int) val);
fputs_filtered (" ", stream);
LA_PRINT_CHAR ((unsigned char) val, stream);
}
break;
case TYPE_CODE_FLT:
if (format)
{
print_scalar_formatted (valaddr + embedded_offset, type, format, 0, stream);
}
else
{
print_floating (valaddr + embedded_offset, type, stream);
}
break;
case TYPE_CODE_METHOD:
{
struct value *v = value_at (type, address);
cp_print_class_method (value_contents (value_addr (v)),
lookup_pointer_type (type), stream);
break;
}
case TYPE_CODE_VOID:
fprintf_filtered (stream, "void");
break;
case TYPE_CODE_ERROR:
/* APPLE LOCAL display error as unknown type */
fprintf_filtered (stream, _("<unknown type>"));
break;
case TYPE_CODE_UNDEF:
/* This happens (without TYPE_FLAG_STUB set) on systems which don't use
dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
and no complete type for struct foo in that file. */
fprintf_filtered (stream, _("<incomplete type>"));
break;
case TYPE_CODE_COMPLEX:
if (format)
print_scalar_formatted (valaddr + embedded_offset,
TYPE_TARGET_TYPE (type),
format, 0, stream);
else
print_floating (valaddr + embedded_offset, TYPE_TARGET_TYPE (type),
stream);
fprintf_filtered (stream, " + ");
if (format)
print_scalar_formatted (valaddr + embedded_offset
+ TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
TYPE_TARGET_TYPE (type),
format, 0, stream);
else
print_floating (valaddr + embedded_offset
+ TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
TYPE_TARGET_TYPE (type),
stream);
fprintf_filtered (stream, " * I");
break;
default:
error (_("Invalid C/C++ type code %d in symbol table."), TYPE_CODE (type));
}
gdb_flush (stream);
return (0);
}
static struct type *
gnuv2_value_rtti_type (struct value *v, int *full, int *top, int *using_enc)
{
struct type *known_type;
struct type *rtti_type;
CORE_ADDR vtbl;
struct minimal_symbol *minsym;
char *demangled_name;
struct type *btype;
if (full)
*full = 0;
if (top)
*top = -1;
if (using_enc)
*using_enc = 0;
/* Get declared type */
known_type = value_type (v);
CHECK_TYPEDEF (known_type);
/* RTTI works only or class objects */
if (TYPE_CODE (known_type) != TYPE_CODE_CLASS)
return NULL;
/* Plan on this changing in the future as i get around to setting
the vtables properly for G++ compiled stuff. Also, I'll be using
the type info functions, which are always right. Deal with it
until then.
JCI - This pretty much useless. This gets the "true" type
correctly when there is single inheritance - but in all such
cases that I could find gdb already knows that. In cases
where this points INTO the object (like non-virtual diamond
graphs) the demangled name is something like OUTER::INNER
and this is not a symbol gdb can resolve, so we fail & return
NULL anyway. Seems like this really isn't going to work till
we actually call the RTTI function & parse it.
*/
/* If the type has no vptr fieldno, try to get it filled in */
if (TYPE_VPTR_FIELDNO(known_type) < 0)
fill_in_vptr_fieldno(known_type);
/* If we still can't find one, give up */
if (TYPE_VPTR_FIELDNO(known_type) < 0)
return NULL;
/* Make sure our basetype and known type match, otherwise, cast
so we can get at the vtable properly.
*/
btype = TYPE_VPTR_BASETYPE (known_type);
CHECK_TYPEDEF (btype);
if (btype != known_type )
{
v = value_cast (btype, v);
if (using_enc)
*using_enc=1;
}
/*
We can't use value_ind here, because it would want to use RTTI, and
we'd waste a bunch of time figuring out we already know the type.
Besides, we don't care about the type, just the actual pointer
*/
if (VALUE_ADDRESS (value_field (v, TYPE_VPTR_FIELDNO (known_type))) == 0)
return NULL;
vtbl=value_as_address(value_field(v,TYPE_VPTR_FIELDNO(known_type)));
/* Try to find a symbol that is the vtable */
minsym=lookup_minimal_symbol_by_pc(vtbl);
if (minsym==NULL
|| (demangled_name=DEPRECATED_SYMBOL_NAME (minsym))==NULL
|| !is_vtable_name (demangled_name))
return NULL;
/* If we just skip the prefix, we get screwed by namespaces */
demangled_name=cplus_demangle(demangled_name,DMGL_PARAMS|DMGL_ANSI);
*(strchr(demangled_name,' '))=0;
/* Lookup the type for the name */
/* FIXME: chastain/2003-11-26: block=NULL is bogus. See pr gdb/1465. */
rtti_type = cp_lookup_rtti_type (demangled_name, NULL);
if (rtti_type == NULL)
return NULL;
if (TYPE_N_BASECLASSES(rtti_type) > 1 && full && (*full) != 1)
{
if (top)
*top=TYPE_BASECLASS_BITPOS(rtti_type,TYPE_VPTR_FIELDNO(rtti_type))/8;
if (top && ((*top) >0))
{
if (TYPE_LENGTH(rtti_type) > TYPE_LENGTH(known_type))
{
if (full)
*full=0;
}
else
{
if (full)
*full=1;
}
}
}
else
{
if (full)
*full=1;
}
return rtti_type;
}
static CORE_ADDR
hppa_hpux_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
{
struct gdbarch *gdbarch = get_frame_arch (frame);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int word_size = gdbarch_ptr_bit (gdbarch) / 8;
long orig_pc = pc;
long prev_inst, curr_inst, loc;
struct minimal_symbol *msym;
struct unwind_table_entry *u;
/* Addresses passed to dyncall may *NOT* be the actual address
of the function. So we may have to do something special. */
if (pc == hppa_symbol_address("$$dyncall"))
{
pc = (CORE_ADDR) get_frame_register_unsigned (frame, 22);
/* If bit 30 (counting from the left) is on, then pc is the address of
the PLT entry for this function, not the address of the function
itself. Bit 31 has meaning too, but only for MPE. */
if (pc & 0x2)
pc = (CORE_ADDR) read_memory_integer (pc & ~0x3, word_size,
byte_order);
}
if (pc == hppa_symbol_address("$$dyncall_external"))
{
pc = (CORE_ADDR) get_frame_register_unsigned (frame, 22);
pc = (CORE_ADDR) read_memory_integer (pc & ~0x3, word_size, byte_order);
}
else if (pc == hppa_symbol_address("_sr4export"))
pc = (CORE_ADDR) get_frame_register_unsigned (frame, 22);
/* Get the unwind descriptor corresponding to PC, return zero
if no unwind was found. */
u = find_unwind_entry (pc);
if (!u)
return 0;
/* If this isn't a linker stub, then return now. */
/* elz: attention here! (FIXME) because of a compiler/linker
error, some stubs which should have a non zero stub_unwind.stub_type
have unfortunately a value of zero. So this function would return here
as if we were not in a trampoline. To fix this, we go look at the partial
symbol information, which reports this guy as a stub.
(FIXME): Unfortunately, we are not that lucky: it turns out that the
partial symbol information is also wrong sometimes. This is because
when it is entered (somread.c::som_symtab_read()) it can happen that
if the type of the symbol (from the som) is Entry, and the symbol is
in a shared library, then it can also be a trampoline. This would be OK,
except that I believe the way they decide if we are ina shared library
does not work. SOOOO..., even if we have a regular function w/o
trampolines its minimal symbol can be assigned type mst_solib_trampoline.
Also, if we find that the symbol is a real stub, then we fix the unwind
descriptor, and define the stub type to be EXPORT.
Hopefully this is correct most of the times. */
if (u->stub_unwind.stub_type == 0)
{
/* elz: NOTE (FIXME!) once the problem with the unwind information is fixed
we can delete all the code which appears between the lines. */
/*--------------------------------------------------------------------------*/
msym = lookup_minimal_symbol_by_pc (pc);
if (msym == NULL || MSYMBOL_TYPE (msym) != mst_solib_trampoline)
return orig_pc == pc ? 0 : pc & ~0x3;
else if (msym != NULL && MSYMBOL_TYPE (msym) == mst_solib_trampoline)
{
struct objfile *objfile;
struct minimal_symbol *msymbol;
int function_found = 0;
/* Go look if there is another minimal symbol with the same name as
this one, but with type mst_text. This would happen if the msym
is an actual trampoline, in which case there would be another
symbol with the same name corresponding to the real function. */
ALL_MSYMBOLS (objfile, msymbol)
{
if (MSYMBOL_TYPE (msymbol) == mst_text
&& strcmp (SYMBOL_LINKAGE_NAME (msymbol),
SYMBOL_LINKAGE_NAME (msym)) == 0)
{
function_found = 1;
break;
}
}
if (function_found)
/* The type of msym is correct (mst_solib_trampoline), but
the unwind info is wrong, so set it to the correct value. */
u->stub_unwind.stub_type = EXPORT;
else
/* The stub type info in the unwind is correct (this is not a
trampoline), but the msym type information is wrong, it
should be mst_text. So we need to fix the msym, and also
get out of this function. */
{
MSYMBOL_TYPE (msym) = mst_text;
return orig_pc == pc ? 0 : pc & ~0x3;
}
}
/*--------------------------------------------------------------------------*/
}
static int
hppa32_hpux_in_solib_call_trampoline (struct gdbarch *gdbarch,
CORE_ADDR pc, char *name)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct minimal_symbol *minsym;
struct unwind_table_entry *u;
/* First see if PC is in one of the two C-library trampolines. */
if (pc == hppa_symbol_address("$$dyncall")
|| pc == hppa_symbol_address("_sr4export"))
return 1;
minsym = lookup_minimal_symbol_by_pc (pc);
if (minsym && strcmp (SYMBOL_LINKAGE_NAME (minsym), ".stub") == 0)
return 1;
/* Get the unwind descriptor corresponding to PC, return zero
if no unwind was found. */
u = find_unwind_entry (pc);
if (!u)
return 0;
/* If this isn't a linker stub, then return now. */
if (u->stub_unwind.stub_type == 0)
return 0;
/* By definition a long-branch stub is a call stub. */
if (u->stub_unwind.stub_type == LONG_BRANCH)
return 1;
/* The call and return path execute the same instructions within
an IMPORT stub! So an IMPORT stub is both a call and return
trampoline. */
if (u->stub_unwind.stub_type == IMPORT)
return 1;
/* Parameter relocation stubs always have a call path and may have a
return path. */
if (u->stub_unwind.stub_type == PARAMETER_RELOCATION
|| u->stub_unwind.stub_type == EXPORT)
{
CORE_ADDR addr;
/* Search forward from the current PC until we hit a branch
or the end of the stub. */
for (addr = pc; addr <= u->region_end; addr += 4)
{
unsigned long insn;
insn = read_memory_integer (addr, 4, byte_order);
/* Does it look like a bl? If so then it's the call path, if
we find a bv or be first, then we're on the return path. */
if ((insn & 0xfc00e000) == 0xe8000000)
return 1;
else if ((insn & 0xfc00e001) == 0xe800c000
|| (insn & 0xfc000000) == 0xe0000000)
return 0;
}
/* Should never happen. */
warning (_("Unable to find branch in parameter relocation stub."));
return 0;
}
/* Unknown stub type. For now, just return zero. */
return 0;
}
static void
info_common_command (char *comname, int from_tty)
{
SAVED_F77_COMMON_PTR the_common;
COMMON_ENTRY_PTR entry;
struct frame_info *fi;
char *funname = 0;
struct symbol *func;
/* We have been told to display the contents of F77 COMMON
block supposedly visible in this function. Let us
first make sure that it is visible and if so, let
us display its contents */
fi = deprecated_selected_frame;
if (fi == NULL)
error ("No frame selected");
/* The following is generally ripped off from stack.c's routine
print_frame_info() */
func = find_pc_function (get_frame_pc (fi));
if (func)
{
/* In certain pathological cases, the symtabs give the wrong
function (when we are in the first function in a file which
is compiled without debugging symbols, the previous function
is compiled with debugging symbols, and the "foo.o" symbol
that is supposed to tell us where the file with debugging symbols
ends has been truncated by ar because it is longer than 15
characters).
So look in the minimal symbol tables as well, and if it comes
up with a larger address for the function use that instead.
I don't think this can ever cause any problems; there shouldn't
be any minimal symbols in the middle of a function.
FIXME: (Not necessarily true. What about text labels) */
struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (get_frame_pc (fi));
if (msymbol != NULL
&& (SYMBOL_VALUE_ADDRESS (msymbol)
> BLOCK_START (SYMBOL_BLOCK_VALUE (func))))
funname = DEPRECATED_SYMBOL_NAME (msymbol);
else
funname = DEPRECATED_SYMBOL_NAME (func);
}
else
{
struct minimal_symbol *msymbol =
lookup_minimal_symbol_by_pc (get_frame_pc (fi));
if (msymbol != NULL)
funname = DEPRECATED_SYMBOL_NAME (msymbol);
}
/* If comname is NULL, we assume the user wishes to see the
which COMMON blocks are visible here and then return */
if (comname == 0)
{
list_all_visible_commons (funname);
return;
}
the_common = find_common_for_function (comname, funname);
if (the_common)
{
if (strcmp (comname, BLANK_COMMON_NAME_LOCAL) == 0)
printf_filtered ("Contents of blank COMMON block:\n");
else
printf_filtered ("Contents of F77 COMMON block '%s':\n", comname);
printf_filtered ("\n");
entry = the_common->entries;
while (entry != NULL)
{
printf_filtered ("%s = ", DEPRECATED_SYMBOL_NAME (entry->symbol));
print_variable_value (entry->symbol, fi, gdb_stdout);
printf_filtered ("\n");
entry = entry->next;
}
}
else
printf_filtered ("Cannot locate the common block %s in function '%s'\n",
comname, funname);
}
static int
hppa64_hpux_in_solib_call_trampoline (struct gdbarch *gdbarch,
CORE_ADDR pc, char *name)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
/* PA64 has a completely different stub/trampoline scheme. Is it
better? Maybe. It's certainly harder to determine with any
certainty that we are in a stub because we can not refer to the
unwinders to help.
The heuristic is simple. Try to lookup the current PC value in th
minimal symbol table. If that fails, then assume we are not in a
stub and return.
Then see if the PC value falls within the section bounds for the
section containing the minimal symbol we found in the first
step. If it does, then assume we are not in a stub and return.
Finally peek at the instructions to see if they look like a stub. */
struct minimal_symbol *minsym;
asection *sec;
CORE_ADDR addr;
int insn, i;
minsym = lookup_minimal_symbol_by_pc (pc);
if (! minsym)
return 0;
sec = SYMBOL_OBJ_SECTION (minsym)->the_bfd_section;
if (bfd_get_section_vma (sec->owner, sec) <= pc
&& pc < (bfd_get_section_vma (sec->owner, sec)
+ bfd_section_size (sec->owner, sec)))
return 0;
/* We might be in a stub. Peek at the instructions. Stubs are 3
instructions long. */
insn = read_memory_integer (pc, 4, byte_order);
/* Find out where we think we are within the stub. */
if ((insn & 0xffffc00e) == 0x53610000)
addr = pc;
else if ((insn & 0xffffffff) == 0xe820d000)
addr = pc - 4;
else if ((insn & 0xffffc00e) == 0x537b0000)
addr = pc - 8;
else
return 0;
/* Now verify each insn in the range looks like a stub instruction. */
insn = read_memory_integer (addr, 4, byte_order);
if ((insn & 0xffffc00e) != 0x53610000)
return 0;
/* Now verify each insn in the range looks like a stub instruction. */
insn = read_memory_integer (addr + 4, 4, byte_order);
if ((insn & 0xffffffff) != 0xe820d000)
return 0;
/* Now verify each insn in the range looks like a stub instruction. */
insn = read_memory_integer (addr + 8, 4, byte_order);
if ((insn & 0xffffc00e) != 0x537b0000)
return 0;
/* Looks like a stub. */
return 1;
}
void
c_val_print (struct type *type, const gdb_byte *valaddr,
int embedded_offset, CORE_ADDR address,
struct ui_file *stream, int recurse,
const struct value *original_value,
const struct value_print_options *options)
{
struct gdbarch *gdbarch = get_type_arch (type);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
unsigned int i = 0; /* Number of characters printed. */
unsigned len;
struct type *elttype, *unresolved_elttype;
struct type *unresolved_type = type;
unsigned eltlen;
CORE_ADDR addr;
CHECK_TYPEDEF (type);
switch (TYPE_CODE (type))
{
case TYPE_CODE_ARRAY:
unresolved_elttype = TYPE_TARGET_TYPE (type);
elttype = check_typedef (unresolved_elttype);
if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0)
{
LONGEST low_bound, high_bound;
if (!get_array_bounds (type, &low_bound, &high_bound))
error (_("Could not determine the array high bound"));
eltlen = TYPE_LENGTH (elttype);
len = high_bound - low_bound + 1;
if (options->prettyformat_arrays)
{
print_spaces_filtered (2 + 2 * recurse, stream);
}
/* Print arrays of textual chars with a string syntax, as
long as the entire array is valid. */
if (c_textual_element_type (unresolved_elttype,
options->format)
&& value_bytes_available (original_value, embedded_offset,
TYPE_LENGTH (type))
&& value_bits_valid (original_value,
TARGET_CHAR_BIT * embedded_offset,
TARGET_CHAR_BIT * TYPE_LENGTH (type)))
{
int force_ellipses = 0;
/* If requested, look for the first null char and only
print elements up to it. */
if (options->stop_print_at_null)
{
unsigned int temp_len;
for (temp_len = 0;
(temp_len < len
&& temp_len < options->print_max
&& extract_unsigned_integer (valaddr + embedded_offset
+ temp_len * eltlen,
eltlen, byte_order) != 0);
++temp_len)
;
/* Force LA_PRINT_STRING to print ellipses if
we've printed the maximum characters and
the next character is not \000. */
if (temp_len == options->print_max && temp_len < len)
{
ULONGEST val
= extract_unsigned_integer (valaddr + embedded_offset
+ temp_len * eltlen,
eltlen, byte_order);
if (val != 0)
force_ellipses = 1;
}
len = temp_len;
}
LA_PRINT_STRING (stream, unresolved_elttype,
valaddr + embedded_offset, len,
NULL, force_ellipses, options);
i = len;
}
else
{
fprintf_filtered (stream, "{");
/* If this is a virtual function table, print the 0th
entry specially, and the rest of the members
normally. */
if (cp_is_vtbl_ptr_type (elttype))
{
i = 1;
fprintf_filtered (stream, _("%d vtable entries"),
len - 1);
}
else
{
i = 0;
}
val_print_array_elements (type, valaddr, embedded_offset,
address, stream,
recurse, original_value, options, i);
fprintf_filtered (stream, "}");
}
break;
}
/* Array of unspecified length: treat like pointer to first
elt. */
addr = address + embedded_offset;
goto print_unpacked_pointer;
case TYPE_CODE_METHODPTR:
cplus_print_method_ptr (valaddr + embedded_offset, type, stream);
break;
case TYPE_CODE_PTR:
if (options->format && options->format != 's')
{
val_print_scalar_formatted (type, valaddr, embedded_offset,
original_value, options, 0, stream);
break;
}
if (options->vtblprint && cp_is_vtbl_ptr_type (type))
{
/* Print the unmangled name if desired. */
/* Print vtable entry - we only get here if we ARE using
-fvtable_thunks. (Otherwise, look under
TYPE_CODE_STRUCT.) */
CORE_ADDR addr
= extract_typed_address (valaddr + embedded_offset, type);
print_function_pointer_address (options, gdbarch, addr, stream);
break;
}
unresolved_elttype = TYPE_TARGET_TYPE (type);
elttype = check_typedef (unresolved_elttype);
{
int want_space;
addr = unpack_pointer (type, valaddr + embedded_offset);
print_unpacked_pointer:
want_space = 0;
if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
{
/* Try to print what function it points to. */
print_function_pointer_address (options, gdbarch, addr, stream);
return;
}
if (options->symbol_print)
want_space = print_address_demangle (options, gdbarch, addr,
stream, demangle);
else if (options->addressprint)
{
fputs_filtered (paddress (gdbarch, addr), stream);
want_space = 1;
}
/* For a pointer to a textual type, also print the string
pointed to, unless pointer is null. */
if (c_textual_element_type (unresolved_elttype,
options->format)
&& addr != 0)
{
if (want_space)
fputs_filtered (" ", stream);
i = val_print_string (unresolved_elttype, NULL,
addr, -1,
stream, options);
}
else if (cp_is_vtbl_member (type))
{
/* Print vtbl's nicely. */
CORE_ADDR vt_address = unpack_pointer (type,
valaddr
+ embedded_offset);
struct bound_minimal_symbol msymbol =
lookup_minimal_symbol_by_pc (vt_address);
/* If 'symbol_print' is set, we did the work above. */
if (!options->symbol_print
&& (msymbol.minsym != NULL)
&& (vt_address == SYMBOL_VALUE_ADDRESS (msymbol.minsym)))
{
if (want_space)
fputs_filtered (" ", stream);
fputs_filtered (" <", stream);
fputs_filtered (SYMBOL_PRINT_NAME (msymbol.minsym), stream);
fputs_filtered (">", stream);
want_space = 1;
}
if (vt_address && options->vtblprint)
{
struct value *vt_val;
struct symbol *wsym = (struct symbol *) NULL;
struct type *wtype;
struct block *block = (struct block *) NULL;
struct field_of_this_result is_this_fld;
if (want_space)
fputs_filtered (" ", stream);
if (msymbol.minsym != NULL)
wsym = lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol.minsym),
block, VAR_DOMAIN,
&is_this_fld);
if (wsym)
{
wtype = SYMBOL_TYPE (wsym);
}
else
{
wtype = unresolved_elttype;
}
vt_val = value_at (wtype, vt_address);
common_val_print (vt_val, stream, recurse + 1,
options, current_language);
if (options->prettyformat)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 + 2 * recurse, stream);
}
}
}
return;
}
break;
case TYPE_CODE_UNION:
if (recurse && !options->unionprint)
{
fprintf_filtered (stream, "{...}");
break;
}
/* Fall through. */
case TYPE_CODE_STRUCT:
/*FIXME: Abstract this away. */
if (options->vtblprint && cp_is_vtbl_ptr_type (type))
{
/* Print the unmangled name if desired. */
/* Print vtable entry - we only get here if NOT using
-fvtable_thunks. (Otherwise, look under
TYPE_CODE_PTR.) */
int offset = (embedded_offset
+ TYPE_FIELD_BITPOS (type,
VTBL_FNADDR_OFFSET) / 8);
struct type *field_type = TYPE_FIELD_TYPE (type,
VTBL_FNADDR_OFFSET);
CORE_ADDR addr
= extract_typed_address (valaddr + offset, field_type);
print_function_pointer_address (options, gdbarch, addr, stream);
}
else
cp_print_value_fields_rtti (type, valaddr,
embedded_offset, address,
stream, recurse,
original_value, options,
NULL, 0);
break;
case TYPE_CODE_INT:
if (options->format || options->output_format)
{
struct value_print_options opts = *options;
opts.format = (options->format ? options->format
: options->output_format);
val_print_scalar_formatted (type, valaddr, embedded_offset,
original_value, &opts, 0, stream);
}
else
{
val_print_type_code_int (type, valaddr + embedded_offset,
stream);
/* C and C++ has no single byte int type, char is used
instead. Since we don't know whether the value is really
intended to be used as an integer or a character, print
the character equivalent as well. */
if (c_textual_element_type (unresolved_type, options->format))
{
fputs_filtered (" ", stream);
LA_PRINT_CHAR (unpack_long (type, valaddr + embedded_offset),
unresolved_type, stream);
}
}
break;
case TYPE_CODE_MEMBERPTR:
if (!options->format)
{
cp_print_class_member (valaddr + embedded_offset, type, stream, "&");
break;
}
/* FALLTHROUGH */
case TYPE_CODE_REF:
case TYPE_CODE_ENUM:
case TYPE_CODE_FLAGS:
case TYPE_CODE_FUNC:
case TYPE_CODE_METHOD:
case TYPE_CODE_BOOL:
case TYPE_CODE_RANGE:
case TYPE_CODE_FLT:
case TYPE_CODE_DECFLOAT:
case TYPE_CODE_VOID:
case TYPE_CODE_ERROR:
case TYPE_CODE_UNDEF:
case TYPE_CODE_COMPLEX:
case TYPE_CODE_CHAR:
default:
generic_val_print (type, valaddr, embedded_offset, address,
stream, recurse, original_value, options,
&c_decorations);
break;
}
gdb_flush (stream);
}
void
pascal_val_print (struct type *type, const gdb_byte *valaddr,
int embedded_offset, CORE_ADDR address,
struct ui_file *stream, int recurse,
const struct value *original_value,
const struct value_print_options *options)
{
struct gdbarch *gdbarch = get_type_arch (type);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
unsigned int i = 0; /* Number of characters printed */
unsigned len;
LONGEST low_bound, high_bound;
struct type *elttype;
unsigned eltlen;
int length_pos, length_size, string_pos;
struct type *char_type;
CORE_ADDR addr;
int want_space = 0;
type = check_typedef (type);
switch (TYPE_CODE (type))
{
case TYPE_CODE_ARRAY:
if (get_array_bounds (type, &low_bound, &high_bound))
{
len = high_bound - low_bound + 1;
elttype = check_typedef (TYPE_TARGET_TYPE (type));
eltlen = TYPE_LENGTH (elttype);
if (options->prettyformat_arrays)
{
print_spaces_filtered (2 + 2 * recurse, stream);
}
/* If 's' format is used, try to print out as string.
If no format is given, print as string if element type
is of TYPE_CODE_CHAR and element size is 1,2 or 4. */
if (options->format == 's'
|| ((eltlen == 1 || eltlen == 2 || eltlen == 4)
&& TYPE_CODE (elttype) == TYPE_CODE_CHAR
&& options->format == 0))
{
/* If requested, look for the first null char and only print
elements up to it. */
if (options->stop_print_at_null)
{
unsigned int temp_len;
/* Look for a NULL char. */
for (temp_len = 0;
extract_unsigned_integer (valaddr + embedded_offset +
temp_len * eltlen, eltlen,
byte_order)
&& temp_len < len && temp_len < options->print_max;
temp_len++);
len = temp_len;
}
LA_PRINT_STRING (stream, TYPE_TARGET_TYPE (type),
valaddr + embedded_offset, len, NULL, 0,
options);
i = len;
}
else
{
fprintf_filtered (stream, "{");
/* If this is a virtual function table, print the 0th
entry specially, and the rest of the members normally. */
if (pascal_object_is_vtbl_ptr_type (elttype))
{
i = 1;
fprintf_filtered (stream, "%d vtable entries", len - 1);
}
else
{
i = 0;
}
val_print_array_elements (type, valaddr, embedded_offset,
address, stream, recurse,
original_value, options, i);
fprintf_filtered (stream, "}");
}
break;
}
/* Array of unspecified length: treat like pointer to first elt. */
addr = address + embedded_offset;
goto print_unpacked_pointer;
case TYPE_CODE_PTR:
if (options->format && options->format != 's')
{
val_print_scalar_formatted (type, valaddr, embedded_offset,
original_value, options, 0, stream);
break;
}
if (options->vtblprint && pascal_object_is_vtbl_ptr_type (type))
{
/* Print the unmangled name if desired. */
/* Print vtable entry - we only get here if we ARE using
-fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
/* Extract the address, assume that it is unsigned. */
addr = extract_unsigned_integer (valaddr + embedded_offset,
TYPE_LENGTH (type), byte_order);
print_address_demangle (options, gdbarch, addr, stream, demangle);
break;
}
check_typedef (TYPE_TARGET_TYPE (type));
addr = unpack_pointer (type, valaddr + embedded_offset);
print_unpacked_pointer:
elttype = check_typedef (TYPE_TARGET_TYPE (type));
if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
{
/* Try to print what function it points to. */
print_address_demangle (options, gdbarch, addr, stream, demangle);
return;
}
if (options->addressprint && options->format != 's')
{
fputs_filtered (paddress (gdbarch, addr), stream);
want_space = 1;
}
/* For a pointer to char or unsigned char, also print the string
pointed to, unless pointer is null. */
if (((TYPE_LENGTH (elttype) == 1
&& (TYPE_CODE (elttype) == TYPE_CODE_INT
|| TYPE_CODE (elttype) == TYPE_CODE_CHAR))
|| ((TYPE_LENGTH (elttype) == 2 || TYPE_LENGTH (elttype) == 4)
&& TYPE_CODE (elttype) == TYPE_CODE_CHAR))
&& (options->format == 0 || options->format == 's')
&& addr != 0)
{
if (want_space)
fputs_filtered (" ", stream);
/* No wide string yet. */
i = val_print_string (elttype, NULL, addr, -1, stream, options);
}
/* Also for pointers to pascal strings. */
/* Note: this is Free Pascal specific:
as GDB does not recognize stabs pascal strings
Pascal strings are mapped to records
with lowercase names PM. */
if (is_pascal_string_type (elttype, &length_pos, &length_size,
&string_pos, &char_type, NULL)
&& addr != 0)
{
ULONGEST string_length;
gdb_byte *buffer;
if (want_space)
fputs_filtered (" ", stream);
buffer = (gdb_byte *) xmalloc (length_size);
read_memory (addr + length_pos, buffer, length_size);
string_length = extract_unsigned_integer (buffer, length_size,
byte_order);
xfree (buffer);
i = val_print_string (char_type, NULL,
addr + string_pos, string_length,
stream, options);
}
else if (pascal_object_is_vtbl_member (type))
{
/* Print vtbl's nicely. */
CORE_ADDR vt_address = unpack_pointer (type,
valaddr + embedded_offset);
struct bound_minimal_symbol msymbol =
lookup_minimal_symbol_by_pc (vt_address);
/* If 'symbol_print' is set, we did the work above. */
if (!options->symbol_print
&& (msymbol.minsym != NULL)
&& (vt_address == BMSYMBOL_VALUE_ADDRESS (msymbol)))
{
if (want_space)
fputs_filtered (" ", stream);
fputs_filtered ("<", stream);
fputs_filtered (MSYMBOL_PRINT_NAME (msymbol.minsym), stream);
fputs_filtered (">", stream);
want_space = 1;
}
if (vt_address && options->vtblprint)
{
struct value *vt_val;
struct symbol *wsym = NULL;
struct type *wtype;
struct block *block = NULL;
struct field_of_this_result is_this_fld;
if (want_space)
fputs_filtered (" ", stream);
if (msymbol.minsym != NULL)
wsym = lookup_symbol (MSYMBOL_LINKAGE_NAME (msymbol.minsym),
block,
VAR_DOMAIN, &is_this_fld).symbol;
if (wsym)
{
wtype = SYMBOL_TYPE (wsym);
}
else
{
wtype = TYPE_TARGET_TYPE (type);
}
vt_val = value_at (wtype, vt_address);
common_val_print (vt_val, stream, recurse + 1, options,
current_language);
if (options->prettyformat)
{
fprintf_filtered (stream, "\n");
print_spaces_filtered (2 + 2 * recurse, stream);
}
}
}
return;
case TYPE_CODE_REF:
case TYPE_CODE_ENUM:
case TYPE_CODE_FLAGS:
case TYPE_CODE_FUNC:
case TYPE_CODE_RANGE:
case TYPE_CODE_INT:
case TYPE_CODE_FLT:
case TYPE_CODE_VOID:
case TYPE_CODE_ERROR:
case TYPE_CODE_UNDEF:
case TYPE_CODE_BOOL:
case TYPE_CODE_CHAR:
generic_val_print (type, valaddr, embedded_offset, address,
stream, recurse, original_value, options,
&p_decorations);
break;
case TYPE_CODE_UNION:
if (recurse && !options->unionprint)
{
fprintf_filtered (stream, "{...}");
break;
}
/* Fall through. */
case TYPE_CODE_STRUCT:
if (options->vtblprint && pascal_object_is_vtbl_ptr_type (type))
{
/* Print the unmangled name if desired. */
/* Print vtable entry - we only get here if NOT using
-fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */
/* Extract the address, assume that it is unsigned. */
print_address_demangle
(options, gdbarch,
extract_unsigned_integer (valaddr + embedded_offset
+ TYPE_FIELD_BITPOS (type,
VTBL_FNADDR_OFFSET) / 8,
TYPE_LENGTH (TYPE_FIELD_TYPE (type,
VTBL_FNADDR_OFFSET)),
byte_order),
stream, demangle);
}
else
{
if (is_pascal_string_type (type, &length_pos, &length_size,
&string_pos, &char_type, NULL))
{
len = extract_unsigned_integer (valaddr + embedded_offset
+ length_pos, length_size,
byte_order);
LA_PRINT_STRING (stream, char_type,
valaddr + embedded_offset + string_pos,
len, NULL, 0, options);
}
else
pascal_object_print_value_fields (type, valaddr, embedded_offset,
address, stream, recurse,
original_value, options,
NULL, 0);
}
break;
case TYPE_CODE_SET:
elttype = TYPE_INDEX_TYPE (type);
elttype = check_typedef (elttype);
if (TYPE_STUB (elttype))
{
fprintf_filtered (stream, "<incomplete type>");
gdb_flush (stream);
break;
}
else
{
struct type *range = elttype;
LONGEST low_bound, high_bound;
int i;
int need_comma = 0;
fputs_filtered ("[", stream);
i = get_discrete_bounds (range, &low_bound, &high_bound);
if (low_bound == 0 && high_bound == -1 && TYPE_LENGTH (type) > 0)
{
/* If we know the size of the set type, we can figure out the
maximum value. */
i = 0;
high_bound = TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1;
TYPE_HIGH_BOUND (range) = high_bound;
}
maybe_bad_bstring:
if (i < 0)
{
fputs_filtered ("<error value>", stream);
goto done;
}
for (i = low_bound; i <= high_bound; i++)
{
int element = value_bit_index (type,
valaddr + embedded_offset, i);
if (element < 0)
{
i = element;
goto maybe_bad_bstring;
}
if (element)
{
if (need_comma)
fputs_filtered (", ", stream);
print_type_scalar (range, i, stream);
need_comma = 1;
if (i + 1 <= high_bound
&& value_bit_index (type,
valaddr + embedded_offset, ++i))
{
int j = i;
fputs_filtered ("..", stream);
while (i + 1 <= high_bound
&& value_bit_index (type,
valaddr + embedded_offset,
++i))
j = i;
print_type_scalar (range, j, stream);
}
}
}
done:
fputs_filtered ("]", stream);
}
break;
default:
error (_("Invalid pascal type code %d in symbol table."),
TYPE_CODE (type));
}
gdb_flush (stream);
}
static struct type *
gnuv3_rtti_type (struct value *value,
int *full_p, int *top_p, int *using_enc_p)
{
struct gdbarch *gdbarch;
struct type *values_type = check_typedef (value_type (value));
struct value *vtable;
struct minimal_symbol *vtable_symbol;
const char *vtable_symbol_name;
const char *class_name;
struct type *run_time_type;
LONGEST offset_to_top;
char *atsign;
/* We only have RTTI for class objects. */
if (TYPE_CODE (values_type) != TYPE_CODE_CLASS)
return NULL;
/* Java doesn't have RTTI following the C++ ABI. */
if (TYPE_CPLUS_REALLY_JAVA (values_type))
return NULL;
/* Determine architecture. */
gdbarch = get_type_arch (values_type);
if (using_enc_p)
*using_enc_p = 0;
vtable = gnuv3_get_vtable (gdbarch, value_type (value),
value_as_address (value_addr (value)));
if (vtable == NULL)
return NULL;
/* Find the linker symbol for this vtable. */
vtable_symbol
= lookup_minimal_symbol_by_pc (value_address (vtable)
+ value_embedded_offset (vtable)).minsym;
if (! vtable_symbol)
return NULL;
/* The symbol's demangled name should be something like "vtable for
CLASS", where CLASS is the name of the run-time type of VALUE.
If we didn't like this approach, we could instead look in the
type_info object itself to get the class name. But this way
should work just as well, and doesn't read target memory. */
vtable_symbol_name = SYMBOL_DEMANGLED_NAME (vtable_symbol);
if (vtable_symbol_name == NULL
|| strncmp (vtable_symbol_name, "vtable for ", 11))
{
warning (_("can't find linker symbol for virtual table for `%s' value"),
TYPE_SAFE_NAME (values_type));
if (vtable_symbol_name)
warning (_(" found `%s' instead"), vtable_symbol_name);
return NULL;
}
class_name = vtable_symbol_name + 11;
/* Strip off @plt and version suffixes. */
atsign = strchr (class_name, '@');
if (atsign != NULL)
{
char *copy;
copy = alloca (atsign - class_name + 1);
memcpy (copy, class_name, atsign - class_name);
copy[atsign - class_name] = '\0';
class_name = copy;
}
/* Try to look up the class name as a type name. */
/* FIXME: chastain/2003-11-26: block=NULL is bogus. See pr gdb/1465. */
run_time_type = cp_lookup_rtti_type (class_name, NULL);
if (run_time_type == NULL)
return NULL;
/* Get the offset from VALUE to the top of the complete object.
NOTE: this is the reverse of the meaning of *TOP_P. */
offset_to_top
= value_as_long (value_field (vtable, vtable_field_offset_to_top));
if (full_p)
*full_p = (- offset_to_top == value_embedded_offset (value)
&& (TYPE_LENGTH (value_enclosing_type (value))
>= TYPE_LENGTH (run_time_type)));
if (top_p)
*top_p = - offset_to_top;
return run_time_type;
}
static int
info_cb (const td_thrhandle_t *th, void *s)
{
td_err_e ret;
td_thrinfo_t ti;
if ((ret = p_td_thr_get_info (th, &ti)) == TD_OK)
{
printf_filtered ("%s thread #%d, lwp %d, ",
ti.ti_type == TD_THR_SYSTEM ? "system" : "user ",
ti.ti_tid, ti.ti_lid);
switch (ti.ti_state)
{
default:
case TD_THR_UNKNOWN:
printf_filtered ("<unknown state>");
break;
case TD_THR_STOPPED:
printf_filtered ("(stopped)");
break;
case TD_THR_RUN:
printf_filtered ("(run) ");
break;
case TD_THR_ACTIVE:
printf_filtered ("(active) ");
break;
case TD_THR_ZOMBIE:
printf_filtered ("(zombie) ");
break;
case TD_THR_SLEEP:
printf_filtered ("(asleep) ");
break;
case TD_THR_STOPPED_ASLEEP:
printf_filtered ("(stopped asleep)");
break;
}
/* Print thr_create start function: */
if (ti.ti_startfunc != 0)
{
struct minimal_symbol *msym;
msym = lookup_minimal_symbol_by_pc (ti.ti_startfunc);
if (msym)
printf_filtered (" startfunc: %s\n", DEPRECATED_SYMBOL_NAME (msym));
else
printf_filtered (" startfunc: 0x%s\n", paddr (ti.ti_startfunc));
}
/* If thread is asleep, print function that went to sleep: */
if (ti.ti_state == TD_THR_SLEEP)
{
struct minimal_symbol *msym;
msym = lookup_minimal_symbol_by_pc (ti.ti_pc);
if (msym)
printf_filtered (" - Sleep func: %s\n", DEPRECATED_SYMBOL_NAME (msym));
else
printf_filtered (" - Sleep func: 0x%s\n", paddr (ti.ti_startfunc));
}
/* Wrap up line, if necessary */
if (ti.ti_state != TD_THR_SLEEP && ti.ti_startfunc == 0)
printf_filtered ("\n"); /* don't you hate counting newlines? */
}
else
warning ("info sol-thread: failed to get info for thread.");
return 0;
}
static struct type *
gnuv2_value_rtti_type (struct value *v, int *full, int *top, int *using_enc)
{
struct type *known_type;
struct type *rtti_type;
CORE_ADDR vtbl;
struct bound_minimal_symbol minsym;
char *demangled_name, *p;
const char *linkage_name;
struct type *btype;
struct type *known_type_vptr_basetype;
int known_type_vptr_fieldno;
if (full)
*full = 0;
if (top)
*top = -1;
if (using_enc)
*using_enc = 0;
/* Get declared type. */
known_type = value_type (v);
CHECK_TYPEDEF (known_type);
/* RTTI works only or class objects. */
if (TYPE_CODE (known_type) != TYPE_CODE_STRUCT)
return NULL;
/* Plan on this changing in the future as i get around to setting
the vtables properly for G++ compiled stuff. Also, I'll be using
the type info functions, which are always right. Deal with it
until then. */
/* Try to get the vptr basetype, fieldno. */
known_type_vptr_fieldno = get_vptr_fieldno (known_type,
&known_type_vptr_basetype);
/* If we can't find it, give up. */
if (known_type_vptr_fieldno < 0)
return NULL;
/* Make sure our basetype and known type match, otherwise, cast
so we can get at the vtable properly. */
btype = known_type_vptr_basetype;
CHECK_TYPEDEF (btype);
if (btype != known_type )
{
v = value_cast (btype, v);
if (using_enc)
*using_enc=1;
}
/* We can't use value_ind here, because it would want to use RTTI, and
we'd waste a bunch of time figuring out we already know the type.
Besides, we don't care about the type, just the actual pointer. */
if (value_address (value_field (v, known_type_vptr_fieldno)) == 0)
return NULL;
vtbl = value_as_address (value_field (v, known_type_vptr_fieldno));
/* Try to find a symbol that is the vtable. */
minsym=lookup_minimal_symbol_by_pc(vtbl);
if (minsym.minsym==NULL
|| (linkage_name=MSYMBOL_LINKAGE_NAME (minsym.minsym))==NULL
|| !is_vtable_name (linkage_name))
return NULL;
/* If we just skip the prefix, we get screwed by namespaces. */
demangled_name=gdb_demangle(linkage_name,DMGL_PARAMS|DMGL_ANSI);
p = strchr (demangled_name, ' ');
if (p)
*p = '\0';
/* Lookup the type for the name. */
/* FIXME: chastain/2003-11-26: block=NULL is bogus. See pr gdb/1465. */
rtti_type = cp_lookup_rtti_type (demangled_name, NULL);
if (rtti_type == NULL)
return NULL;
if (TYPE_N_BASECLASSES(rtti_type) > 1 && full && (*full) != 1)
{
if (top)
*top = TYPE_BASECLASS_BITPOS (rtti_type,
TYPE_VPTR_FIELDNO(rtti_type)) / 8;
if (top && ((*top) >0))
{
if (TYPE_LENGTH(rtti_type) > TYPE_LENGTH(known_type))
{
if (full)
*full=0;
}
else
{
if (full)
*full=1;
}
}
}
else
{
if (full)
*full=1;
}
return rtti_type;
}
