static struct type *
get_regs_type (struct symbol *func_sym, struct objfile *objfile)
{
struct type *func_type = SYMBOL_TYPE (func_sym);
struct type *regsp_type, *regs_type;
/* No register parameter present. */
if (TYPE_NFIELDS (func_type) == 0)
return NULL;
regsp_type = check_typedef (TYPE_FIELD_TYPE (func_type, 0));
if (TYPE_CODE (regsp_type) != TYPE_CODE_PTR)
error (_("Invalid type code %d of first parameter of function \"%s\" "
"in compiled module \"%s\"."),
TYPE_CODE (regsp_type), GCC_FE_WRAPPER_FUNCTION,
objfile_name (objfile));
regs_type = check_typedef (TYPE_TARGET_TYPE (regsp_type));
if (TYPE_CODE (regs_type) != TYPE_CODE_STRUCT)
error (_("Invalid type code %d of dereferenced first parameter "
"of function \"%s\" in compiled module \"%s\"."),
TYPE_CODE (regs_type), GCC_FE_WRAPPER_FUNCTION,
objfile_name (objfile));
return regs_type;
}
char *
find_separate_debug_file_by_buildid (struct objfile *objfile)
{
const struct bfd_build_id *build_id;
build_id = build_id_bfd_get (objfile->obfd);
if (build_id != NULL)
{
if (separate_debug_file_debug)
printf_unfiltered (_("\nLooking for separate debug info (build-id) for "
"%s\n"), objfile_name (objfile));
gdb_bfd_ref_ptr abfd (build_id_to_debug_bfd (build_id->size,
build_id->data));
/* Prevent looping on a stripped .debug file. */
if (abfd != NULL
&& filename_cmp (bfd_get_filename (abfd.get ()),
objfile_name (objfile)) == 0)
warning (_("\"%s\": separate debug info file has no debug info"),
bfd_get_filename (abfd.get ()));
else if (abfd != NULL)
return xstrdup (bfd_get_filename (abfd.get ()));
}
return NULL;
}
/* An Objfile method which returns the objfile's file name, or None. */
static PyObject *
objfpy_get_filename (PyObject *self, void *closure)
{
objfile_object *obj = (objfile_object *) self;
if (obj->objfile)
return PyString_Decode (objfile_name (obj->objfile),
strlen (objfile_name (obj->objfile)),
host_charset (), NULL);
Py_RETURN_NONE;
}
static gdb_bfd_ref_ptr
macho_check_dsym (struct objfile *objfile, std::string *filenamep)
{
size_t name_len = strlen (objfile_name (objfile));
size_t dsym_len = strlen (DSYM_SUFFIX);
const char *base_name = lbasename (objfile_name (objfile));
size_t base_len = strlen (base_name);
char *dsym_filename = (char *) alloca (name_len + dsym_len + base_len + 1);
bfd_mach_o_load_command *main_uuid;
bfd_mach_o_load_command *dsym_uuid;
strcpy (dsym_filename, objfile_name (objfile));
strcpy (dsym_filename + name_len, DSYM_SUFFIX);
strcpy (dsym_filename + name_len + dsym_len, base_name);
if (access (dsym_filename, R_OK) != 0)
return NULL;
if (bfd_mach_o_lookup_command (objfile->obfd,
BFD_MACH_O_LC_UUID, &main_uuid) == 0)
{
warning (_("can't find UUID in %s"), objfile_name (objfile));
return NULL;
}
gdb_bfd_ref_ptr dsym_bfd (gdb_bfd_openr (dsym_filename, gnutarget));
if (dsym_bfd == NULL)
{
warning (_("can't open dsym file %s"), dsym_filename);
return NULL;
}
if (!bfd_check_format (dsym_bfd.get (), bfd_object))
{
warning (_("bad dsym file format: %s"), bfd_errmsg (bfd_get_error ()));
return NULL;
}
if (bfd_mach_o_lookup_command (dsym_bfd.get (),
BFD_MACH_O_LC_UUID, &dsym_uuid) == 0)
{
warning (_("can't find UUID in %s"), dsym_filename);
return NULL;
}
if (memcmp (dsym_uuid->command.uuid.uuid, main_uuid->command.uuid.uuid,
sizeof (main_uuid->command.uuid.uuid)))
{
warning (_("dsym file UUID doesn't match the one in %s"),
objfile_name (objfile));
return NULL;
}
*filenamep = std::string (dsym_filename);
return dsym_bfd;
}
bfd *
find_separate_debug_file_in_section (struct objfile *objfile)
{
asection *section;
bfd *abfd;
if (objfile->obfd == NULL)
return NULL;
section = bfd_get_section_by_name (objfile->obfd, ".gnu_debugdata");
if (section == NULL)
return NULL;
#ifdef HAVE_LIBLZMA
abfd = gdb_bfd_openr_iovec (objfile_name (objfile), gnutarget, lzma_open,
section, lzma_pread, lzma_close, lzma_stat);
if (abfd == NULL)
return NULL;
if (!bfd_check_format (abfd, bfd_object))
{
warning (_("Cannot parse .gnu_debugdata section; not a BFD object"));
gdb_bfd_unref (abfd);
return NULL;
}
#else
warning (_("Cannot parse .gnu_debugdata section; LZMA support was "
"disabled at compile time"));
abfd = NULL;
#endif /* !HAVE_LIBLZMA */
return abfd;
}
char *
find_separate_debug_file_by_buildid (struct objfile *objfile)
{
const struct elf_build_id *build_id;
build_id = build_id_bfd_get (objfile->obfd);
if (build_id != NULL)
{
bfd *abfd;
abfd = build_id_to_debug_bfd (build_id->size, build_id->data);
/* Prevent looping on a stripped .debug file. */
if (abfd != NULL
&& filename_cmp (bfd_get_filename (abfd),
objfile_name (objfile)) == 0)
{
warning (_("\"%s\": separate debug info file has no debug info"),
bfd_get_filename (abfd));
gdb_bfd_unref (abfd);
}
else if (abfd != NULL)
{
char *result = xstrdup (bfd_get_filename (abfd));
gdb_bfd_unref (abfd);
return result;
}
}
return NULL;
}
static PyObject *
pspy_get_filename (PyObject *self, void *closure)
{
pspace_object *obj = (pspace_object *) self;
if (obj->pspace)
{
struct objfile *objfile = obj->pspace->symfile_object_file;
if (objfile)
return PyString_Decode (objfile_name (objfile),
strlen (objfile_name (objfile)),
host_charset (), NULL);
}
Py_RETURN_NONE;
}
static struct type *
get_regs_type (struct objfile *objfile)
{
struct symbol *func_sym;
struct type *func_type, *regsp_type, *regs_type;
func_sym = lookup_global_symbol_from_objfile (objfile,
GCC_FE_WRAPPER_FUNCTION,
VAR_DOMAIN);
if (func_sym == NULL)
error (_("Cannot find function \"%s\" in compiled module \"%s\"."),
GCC_FE_WRAPPER_FUNCTION, objfile_name (objfile));
func_type = SYMBOL_TYPE (func_sym);
if (TYPE_CODE (func_type) != TYPE_CODE_FUNC)
error (_("Invalid type code %d of function \"%s\" in compiled "
"module \"%s\"."),
TYPE_CODE (func_type), GCC_FE_WRAPPER_FUNCTION,
objfile_name (objfile));
/* No register parameter present. */
if (TYPE_NFIELDS (func_type) == 0)
return NULL;
if (TYPE_NFIELDS (func_type) != 1)
error (_("Invalid %d parameters of function \"%s\" in compiled "
"module \"%s\"."),
TYPE_NFIELDS (func_type), GCC_FE_WRAPPER_FUNCTION,
objfile_name (objfile));
regsp_type = check_typedef (TYPE_FIELD_TYPE (func_type, 0));
if (TYPE_CODE (regsp_type) != TYPE_CODE_PTR)
error (_("Invalid type code %d of first parameter of function \"%s\" "
"in compiled module \"%s\"."),
TYPE_CODE (regsp_type), GCC_FE_WRAPPER_FUNCTION,
objfile_name (objfile));
regs_type = check_typedef (TYPE_TARGET_TYPE (regsp_type));
if (TYPE_CODE (regs_type) != TYPE_CODE_STRUCT)
error (_("Invalid type code %d of dereferenced first parameter "
"of function \"%s\" in compiled module \"%s\"."),
TYPE_CODE (regs_type), GCC_FE_WRAPPER_FUNCTION,
objfile_name (objfile));
return regs_type;
}
static PyObject *
objfpy_get_filename (PyObject *self, void *closure)
{
objfile_object *obj = (objfile_object *) self;
if (obj->objfile)
return host_string_to_python_string (objfile_name (obj->objfile));
Py_RETURN_NONE;
}
static PyObject *
pspy_get_filename (PyObject *self, void *closure)
{
pspace_object *obj = (pspace_object *) self;
if (obj->pspace)
{
struct objfile *objfile = obj->pspace->symfile_object_file;
if (objfile)
return host_string_to_python_string (objfile_name (objfile));
}
Py_RETURN_NONE;
}
static bfd_byte *
macho_symfile_relocate (struct objfile *objfile, asection *sectp,
bfd_byte *buf)
{
bfd *abfd = objfile->obfd;
/* We're only interested in sections with relocation
information. */
if ((sectp->flags & SEC_RELOC) == 0)
return NULL;
if (mach_o_debug_level > 0)
printf_unfiltered (_("Relocate section '%s' of %s\n"),
sectp->name, objfile_name (objfile));
return bfd_simple_get_relocated_section_contents (abfd, sectp, buf, NULL);
}
int
dump_subexp_body_standard (struct expression *exp,
struct ui_file *stream, int elt)
{
int opcode = exp->elts[elt++].opcode;
switch (opcode)
{
case TERNOP_COND:
case TERNOP_SLICE:
elt = dump_subexp (exp, stream, elt);
/* FALL THROUGH */
case BINOP_ADD:
case BINOP_SUB:
case BINOP_MUL:
case BINOP_DIV:
case BINOP_REM:
case BINOP_MOD:
case BINOP_LSH:
case BINOP_RSH:
case BINOP_LOGICAL_AND:
case BINOP_LOGICAL_OR:
case BINOP_BITWISE_AND:
case BINOP_BITWISE_IOR:
case BINOP_BITWISE_XOR:
case BINOP_EQUAL:
case BINOP_NOTEQUAL:
case BINOP_LESS:
case BINOP_GTR:
case BINOP_LEQ:
case BINOP_GEQ:
case BINOP_REPEAT:
case BINOP_ASSIGN:
case BINOP_COMMA:
case BINOP_SUBSCRIPT:
case BINOP_EXP:
case BINOP_MIN:
case BINOP_MAX:
case BINOP_INTDIV:
case BINOP_ASSIGN_MODIFY:
case BINOP_VAL:
case BINOP_CONCAT:
case BINOP_IN:
case BINOP_RANGE:
case BINOP_END:
case STRUCTOP_MEMBER:
case STRUCTOP_MPTR:
elt = dump_subexp (exp, stream, elt);
/* FALL THROUGH */
case UNOP_NEG:
case UNOP_LOGICAL_NOT:
case UNOP_COMPLEMENT:
case UNOP_IND:
case UNOP_ADDR:
case UNOP_PREINCREMENT:
case UNOP_POSTINCREMENT:
case UNOP_PREDECREMENT:
case UNOP_POSTDECREMENT:
case UNOP_SIZEOF:
case UNOP_PLUS:
case UNOP_CAP:
case UNOP_CHR:
case UNOP_ORD:
case UNOP_ABS:
case UNOP_FLOAT:
case UNOP_HIGH:
case UNOP_MAX:
case UNOP_MIN:
case UNOP_ODD:
case UNOP_TRUNC:
elt = dump_subexp (exp, stream, elt);
break;
case OP_LONG:
fprintf_filtered (stream, "Type @");
gdb_print_host_address (exp->elts[elt].type, stream);
fprintf_filtered (stream, " (");
type_print (exp->elts[elt].type, NULL, stream, 0);
fprintf_filtered (stream, "), value %ld (0x%lx)",
(long) exp->elts[elt + 1].longconst,
(long) exp->elts[elt + 1].longconst);
elt += 3;
break;
case OP_DOUBLE:
fprintf_filtered (stream, "Type @");
gdb_print_host_address (exp->elts[elt].type, stream);
fprintf_filtered (stream, " (");
type_print (exp->elts[elt].type, NULL, stream, 0);
fprintf_filtered (stream, "), value %g",
(double) exp->elts[elt + 1].doubleconst);
elt += 3;
break;
case OP_VAR_VALUE:
fprintf_filtered (stream, "Block @");
gdb_print_host_address (exp->elts[elt].block, stream);
fprintf_filtered (stream, ", symbol @");
gdb_print_host_address (exp->elts[elt + 1].symbol, stream);
fprintf_filtered (stream, " (%s)",
SYMBOL_PRINT_NAME (exp->elts[elt + 1].symbol));
elt += 3;
break;
case OP_VAR_ENTRY_VALUE:
fprintf_filtered (stream, "Entry value of symbol @");
gdb_print_host_address (exp->elts[elt].symbol, stream);
fprintf_filtered (stream, " (%s)",
SYMBOL_PRINT_NAME (exp->elts[elt].symbol));
elt += 2;
break;
case OP_LAST:
fprintf_filtered (stream, "History element %ld",
(long) exp->elts[elt].longconst);
elt += 2;
break;
case OP_REGISTER:
fprintf_filtered (stream, "Register $%s", &exp->elts[elt + 1].string);
elt += 3 + BYTES_TO_EXP_ELEM (exp->elts[elt].longconst + 1);
break;
case OP_INTERNALVAR:
fprintf_filtered (stream, "Internal var @");
gdb_print_host_address (exp->elts[elt].internalvar, stream);
fprintf_filtered (stream, " (%s)",
internalvar_name (exp->elts[elt].internalvar));
elt += 2;
break;
case OP_FUNCALL:
{
int i, nargs;
nargs = longest_to_int (exp->elts[elt].longconst);
fprintf_filtered (stream, "Number of args: %d", nargs);
elt += 2;
for (i = 1; i <= nargs + 1; i++)
elt = dump_subexp (exp, stream, elt);
}
break;
case OP_ARRAY:
{
int lower, upper;
int i;
lower = longest_to_int (exp->elts[elt].longconst);
upper = longest_to_int (exp->elts[elt + 1].longconst);
fprintf_filtered (stream, "Bounds [%d:%d]", lower, upper);
elt += 3;
for (i = 1; i <= upper - lower + 1; i++)
elt = dump_subexp (exp, stream, elt);
}
break;
case UNOP_DYNAMIC_CAST:
case UNOP_REINTERPRET_CAST:
case UNOP_CAST_TYPE:
case UNOP_MEMVAL_TYPE:
fprintf_filtered (stream, " (");
elt = dump_subexp (exp, stream, elt);
fprintf_filtered (stream, ")");
elt = dump_subexp (exp, stream, elt);
break;
case UNOP_MEMVAL:
case UNOP_CAST:
fprintf_filtered (stream, "Type @");
gdb_print_host_address (exp->elts[elt].type, stream);
fprintf_filtered (stream, " (");
type_print (exp->elts[elt].type, NULL, stream, 0);
fprintf_filtered (stream, ")");
elt = dump_subexp (exp, stream, elt + 2);
break;
case UNOP_MEMVAL_TLS:
fprintf_filtered (stream, "TLS type @");
gdb_print_host_address (exp->elts[elt + 1].type, stream);
fprintf_filtered (stream, " (__thread /* \"%s\" */ ",
(exp->elts[elt].objfile == NULL ? "(null)"
: objfile_name (exp->elts[elt].objfile)));
type_print (exp->elts[elt + 1].type, NULL, stream, 0);
fprintf_filtered (stream, ")");
elt = dump_subexp (exp, stream, elt + 3);
break;
case OP_TYPE:
fprintf_filtered (stream, "Type @");
gdb_print_host_address (exp->elts[elt].type, stream);
fprintf_filtered (stream, " (");
type_print (exp->elts[elt].type, NULL, stream, 0);
fprintf_filtered (stream, ")");
elt += 2;
break;
case OP_TYPEOF:
case OP_DECLTYPE:
fprintf_filtered (stream, "Typeof (");
elt = dump_subexp (exp, stream, elt);
fprintf_filtered (stream, ")");
break;
case OP_TYPEID:
fprintf_filtered (stream, "typeid (");
elt = dump_subexp (exp, stream, elt);
fprintf_filtered (stream, ")");
break;
case STRUCTOP_STRUCT:
case STRUCTOP_PTR:
{
char *elem_name;
int len;
len = longest_to_int (exp->elts[elt].longconst);
elem_name = &exp->elts[elt + 1].string;
fprintf_filtered (stream, "Element name: `%.*s'", len, elem_name);
elt = dump_subexp (exp, stream, elt + 3 + BYTES_TO_EXP_ELEM (len + 1));
}
break;
case OP_SCOPE:
{
char *elem_name;
int len;
fprintf_filtered (stream, "Type @");
gdb_print_host_address (exp->elts[elt].type, stream);
fprintf_filtered (stream, " (");
type_print (exp->elts[elt].type, NULL, stream, 0);
fprintf_filtered (stream, ") ");
len = longest_to_int (exp->elts[elt + 1].longconst);
elem_name = &exp->elts[elt + 2].string;
fprintf_filtered (stream, "Field name: `%.*s'", len, elem_name);
elt += 4 + BYTES_TO_EXP_ELEM (len + 1);
}
break;
case TYPE_INSTANCE:
{
LONGEST len;
len = exp->elts[elt++].longconst;
fprintf_filtered (stream, "%s TypeInstance: ", plongest (len));
while (len-- > 0)
{
fprintf_filtered (stream, "Type @");
gdb_print_host_address (exp->elts[elt].type, stream);
fprintf_filtered (stream, " (");
type_print (exp->elts[elt].type, NULL, stream, 0);
fprintf_filtered (stream, ")");
elt++;
if (len > 0)
fputs_filtered (", ", stream);
}
/* Ending LEN and ending TYPE_INSTANCE. */
elt += 2;
elt = dump_subexp (exp, stream, elt);
}
break;
default:
case OP_NULL:
case MULTI_SUBSCRIPT:
case OP_F77_UNDETERMINED_ARGLIST:
case OP_COMPLEX:
case OP_STRING:
case OP_BOOL:
case OP_M2_STRING:
case OP_THIS:
case OP_NAME:
fprintf_filtered (stream, "Unknown format");
}
return elt;
}
struct compile_module *
compile_object_load (const char *object_file, const char *source_file,
enum compile_i_scope_types scope, void *scope_data)
{
struct cleanup *cleanups, *cleanups_free_objfile;
bfd *abfd;
struct setup_sections_data setup_sections_data;
CORE_ADDR addr, regs_addr, out_value_addr = 0;
struct symbol *func_sym;
struct type *func_type;
struct bound_minimal_symbol bmsym;
long storage_needed;
asymbol **symbol_table, **symp;
long number_of_symbols, missing_symbols;
struct type *dptr_type = builtin_type (target_gdbarch ())->builtin_data_ptr;
unsigned dptr_type_len = TYPE_LENGTH (dptr_type);
struct compile_module *retval;
struct type *regs_type, *out_value_type = NULL;
char *filename, **matching;
struct objfile *objfile;
int expect_parameters;
struct type *expect_return_type;
struct munmap_list *munmap_list_head = NULL;
filename = tilde_expand (object_file);
cleanups = make_cleanup (xfree, filename);
abfd = gdb_bfd_open (filename, gnutarget, -1);
if (abfd == NULL)
error (_("\"%s\": could not open as compiled module: %s"),
filename, bfd_errmsg (bfd_get_error ()));
make_cleanup_bfd_unref (abfd);
if (!bfd_check_format_matches (abfd, bfd_object, &matching))
error (_("\"%s\": not in loadable format: %s"),
filename, gdb_bfd_errmsg (bfd_get_error (), matching));
if ((bfd_get_file_flags (abfd) & (EXEC_P | DYNAMIC)) != 0)
error (_("\"%s\": not in object format."), filename);
setup_sections_data.last_size = 0;
setup_sections_data.last_section_first = abfd->sections;
setup_sections_data.last_prot = -1;
setup_sections_data.last_max_alignment = 1;
setup_sections_data.munmap_list_headp = &munmap_list_head;
make_cleanup (munmap_listp_free_cleanup, &munmap_list_head);
bfd_map_over_sections (abfd, setup_sections, &setup_sections_data);
setup_sections (abfd, NULL, &setup_sections_data);
storage_needed = bfd_get_symtab_upper_bound (abfd);
if (storage_needed < 0)
error (_("Cannot read symbols of compiled module \"%s\": %s"),
filename, bfd_errmsg (bfd_get_error ()));
/* SYMFILE_VERBOSE is not passed even if FROM_TTY, user is not interested in
"Reading symbols from ..." message for automatically generated file. */
objfile = symbol_file_add_from_bfd (abfd, filename, 0, NULL, 0, NULL);
cleanups_free_objfile = make_cleanup_free_objfile (objfile);
func_sym = lookup_global_symbol_from_objfile (objfile,
GCC_FE_WRAPPER_FUNCTION,
VAR_DOMAIN).symbol;
if (func_sym == NULL)
error (_("Cannot find function \"%s\" in compiled module \"%s\"."),
GCC_FE_WRAPPER_FUNCTION, objfile_name (objfile));
func_type = SYMBOL_TYPE (func_sym);
if (TYPE_CODE (func_type) != TYPE_CODE_FUNC)
error (_("Invalid type code %d of function \"%s\" in compiled "
"module \"%s\"."),
TYPE_CODE (func_type), GCC_FE_WRAPPER_FUNCTION,
objfile_name (objfile));
switch (scope)
{
case COMPILE_I_SIMPLE_SCOPE:
expect_parameters = 1;
expect_return_type = builtin_type (target_gdbarch ())->builtin_void;
break;
case COMPILE_I_RAW_SCOPE:
expect_parameters = 0;
expect_return_type = builtin_type (target_gdbarch ())->builtin_void;
break;
case COMPILE_I_PRINT_ADDRESS_SCOPE:
case COMPILE_I_PRINT_VALUE_SCOPE:
expect_parameters = 2;
expect_return_type = builtin_type (target_gdbarch ())->builtin_void;
break;
default:
internal_error (__FILE__, __LINE__, _("invalid scope %d"), scope);
}
if (TYPE_NFIELDS (func_type) != expect_parameters)
error (_("Invalid %d parameters of function \"%s\" in compiled "
"module \"%s\"."),
TYPE_NFIELDS (func_type), GCC_FE_WRAPPER_FUNCTION,
objfile_name (objfile));
if (!types_deeply_equal (expect_return_type, TYPE_TARGET_TYPE (func_type)))
error (_("Invalid return type of function \"%s\" in compiled "
"module \"%s\"."),
GCC_FE_WRAPPER_FUNCTION, objfile_name (objfile));
/* The memory may be later needed
by bfd_generic_get_relocated_section_contents
called from default_symfile_relocate. */
symbol_table = obstack_alloc (&objfile->objfile_obstack, storage_needed);
number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table);
if (number_of_symbols < 0)
error (_("Cannot parse symbols of compiled module \"%s\": %s"),
filename, bfd_errmsg (bfd_get_error ()));
missing_symbols = 0;
for (symp = symbol_table; symp < symbol_table + number_of_symbols; symp++)
{
asymbol *sym = *symp;
if (sym->flags != 0)
continue;
sym->flags = BSF_GLOBAL;
sym->section = bfd_abs_section_ptr;
if (strcmp (sym->name, "_GLOBAL_OFFSET_TABLE_") == 0)
{
if (compile_debug)
fprintf_unfiltered (gdb_stdlog,
"ELF symbol \"%s\" relocated to zero\n",
sym->name);
/* It seems to be a GCC bug, with -mcmodel=large there should be no
need for _GLOBAL_OFFSET_TABLE_. Together with -fPIE the data
remain PC-relative even with _GLOBAL_OFFSET_TABLE_ as zero. */
sym->value = 0;
continue;
}
bmsym = lookup_minimal_symbol (sym->name, NULL, NULL);
switch (bmsym.minsym == NULL
? mst_unknown : MSYMBOL_TYPE (bmsym.minsym))
{
case mst_text:
sym->value = BMSYMBOL_VALUE_ADDRESS (bmsym);
if (compile_debug)
fprintf_unfiltered (gdb_stdlog,
"ELF mst_text symbol \"%s\" relocated to %s\n",
sym->name,
paddress (target_gdbarch (), sym->value));
break;
case mst_text_gnu_ifunc:
sym->value = gnu_ifunc_resolve_addr (target_gdbarch (),
BMSYMBOL_VALUE_ADDRESS (bmsym));
if (compile_debug)
fprintf_unfiltered (gdb_stdlog,
"ELF mst_text_gnu_ifunc symbol \"%s\" "
"relocated to %s\n",
sym->name,
paddress (target_gdbarch (), sym->value));
break;
default:
warning (_("Could not find symbol \"%s\" "
"for compiled module \"%s\"."),
sym->name, filename);
missing_symbols++;
}
}
if (missing_symbols)
error (_("%ld symbols were missing, cannot continue."), missing_symbols);
bfd_map_over_sections (abfd, copy_sections, symbol_table);
regs_type = get_regs_type (func_sym, objfile);
if (regs_type == NULL)
regs_addr = 0;
else
{
/* Use read-only non-executable memory protection. */
regs_addr = gdbarch_infcall_mmap (target_gdbarch (),
TYPE_LENGTH (regs_type),
GDB_MMAP_PROT_READ);
gdb_assert (regs_addr != 0);
munmap_list_add (&munmap_list_head, regs_addr, TYPE_LENGTH (regs_type));
if (compile_debug)
fprintf_unfiltered (gdb_stdlog,
"allocated %s bytes at %s for registers\n",
paddress (target_gdbarch (),
TYPE_LENGTH (regs_type)),
paddress (target_gdbarch (), regs_addr));
store_regs (regs_type, regs_addr);
}
if (scope == COMPILE_I_PRINT_ADDRESS_SCOPE
|| scope == COMPILE_I_PRINT_VALUE_SCOPE)
{
out_value_type = get_out_value_type (func_sym, objfile, scope);
if (out_value_type == NULL)
{
do_cleanups (cleanups);
return NULL;
}
check_typedef (out_value_type);
out_value_addr = gdbarch_infcall_mmap (target_gdbarch (),
TYPE_LENGTH (out_value_type),
(GDB_MMAP_PROT_READ
| GDB_MMAP_PROT_WRITE));
gdb_assert (out_value_addr != 0);
munmap_list_add (&munmap_list_head, out_value_addr,
TYPE_LENGTH (out_value_type));
if (compile_debug)
fprintf_unfiltered (gdb_stdlog,
"allocated %s bytes at %s for printed value\n",
paddress (target_gdbarch (),
TYPE_LENGTH (out_value_type)),
paddress (target_gdbarch (), out_value_addr));
}
discard_cleanups (cleanups_free_objfile);
retval = xmalloc (sizeof (*retval));
retval->objfile = objfile;
retval->source_file = xstrdup (source_file);
retval->func_sym = func_sym;
retval->regs_addr = regs_addr;
retval->scope = scope;
retval->scope_data = scope_data;
retval->out_value_type = out_value_type;
retval->out_value_addr = out_value_addr;
/* CLEANUPS will free MUNMAP_LIST_HEAD. */
retval->munmap_list_head = munmap_list_head;
munmap_list_head = NULL;
do_cleanups (cleanups);
return retval;
}
static struct type *
get_out_value_type (struct symbol *func_sym, struct objfile *objfile,
enum compile_i_scope_types scope)
{
struct symbol *gdb_ptr_type_sym;
/* Initialize it just to avoid a GCC false warning. */
struct symbol *gdb_val_sym = NULL;
struct type *gdb_ptr_type, *gdb_type_from_ptr, *gdb_type, *retval;
/* Initialize it just to avoid a GCC false warning. */
const struct block *block = NULL;
const struct blockvector *bv;
int nblocks = 0;
int block_loop = 0;
bv = SYMTAB_BLOCKVECTOR (func_sym->owner.symtab);
nblocks = BLOCKVECTOR_NBLOCKS (bv);
gdb_ptr_type_sym = NULL;
for (block_loop = 0; block_loop < nblocks; block_loop++)
{
struct symbol *function = NULL;
const struct block *function_block;
block = BLOCKVECTOR_BLOCK (bv, block_loop);
if (BLOCK_FUNCTION (block) != NULL)
continue;
gdb_val_sym = block_lookup_symbol (block, COMPILE_I_EXPR_VAL, VAR_DOMAIN);
if (gdb_val_sym == NULL)
continue;
function_block = block;
while (function_block != BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)
&& function_block != BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK))
{
function_block = BLOCK_SUPERBLOCK (function_block);
function = BLOCK_FUNCTION (function_block);
if (function != NULL)
break;
}
if (function != NULL
&& (BLOCK_SUPERBLOCK (function_block)
== BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK))
&& (strcmp (SYMBOL_LINKAGE_NAME (function), GCC_FE_WRAPPER_FUNCTION)
== 0))
break;
}
if (block_loop == nblocks)
error (_("No \"%s\" symbol found"), COMPILE_I_EXPR_PTR_TYPE);
gdb_type = SYMBOL_TYPE (gdb_val_sym);
gdb_type = check_typedef (gdb_type);
gdb_ptr_type_sym = block_lookup_symbol (block, COMPILE_I_EXPR_PTR_TYPE,
VAR_DOMAIN);
if (gdb_ptr_type_sym == NULL)
error (_("No \"%s\" symbol found"), COMPILE_I_EXPR_PTR_TYPE);
gdb_ptr_type = SYMBOL_TYPE (gdb_ptr_type_sym);
gdb_ptr_type = check_typedef (gdb_ptr_type);
if (TYPE_CODE (gdb_ptr_type) != TYPE_CODE_PTR)
error (_("Type of \"%s\" is not a pointer"), COMPILE_I_EXPR_PTR_TYPE);
gdb_type_from_ptr = TYPE_TARGET_TYPE (gdb_ptr_type);
if (types_deeply_equal (gdb_type, gdb_type_from_ptr))
{
if (scope != COMPILE_I_PRINT_ADDRESS_SCOPE)
error (_("Expected address scope in compiled module \"%s\"."),
objfile_name (objfile));
return gdb_type;
}
if (TYPE_CODE (gdb_type) != TYPE_CODE_PTR)
error (_("Invalid type code %d of symbol \"%s\" "
"in compiled module \"%s\"."),
TYPE_CODE (gdb_type_from_ptr), COMPILE_I_EXPR_VAL,
objfile_name (objfile));
retval = gdb_type_from_ptr;
switch (TYPE_CODE (gdb_type_from_ptr))
{
case TYPE_CODE_ARRAY:
gdb_type_from_ptr = TYPE_TARGET_TYPE (gdb_type_from_ptr);
break;
case TYPE_CODE_FUNC:
break;
default:
error (_("Invalid type code %d of symbol \"%s\" "
"in compiled module \"%s\"."),
TYPE_CODE (gdb_type_from_ptr), COMPILE_I_EXPR_PTR_TYPE,
objfile_name (objfile));
}
if (!types_deeply_equal (gdb_type_from_ptr,
TYPE_TARGET_TYPE (gdb_type)))
error (_("Referenced types do not match for symbols \"%s\" and \"%s\" "
"in compiled module \"%s\"."),
COMPILE_I_EXPR_PTR_TYPE, COMPILE_I_EXPR_VAL,
objfile_name (objfile));
if (scope == COMPILE_I_PRINT_ADDRESS_SCOPE)
return NULL;
return retval;
}
static void
macho_symtab_read (minimal_symbol_reader &reader,
struct objfile *objfile,
long number_of_symbols, asymbol **symbol_table,
std::vector<oso_el> *oso_vector_ptr)
{
long i;
const asymbol *file_so = NULL;
asymbol **oso_file = NULL;
unsigned int nbr_syms = 0;
/* Current state while reading stabs. */
enum
{
/* Not within an SO part. Only non-debugging symbols should be present,
and will be added to the minimal symbols table. */
S_NO_SO,
/* First SO read. Introduce an SO section, and may be followed by a second
SO. The SO section should contain onl debugging symbols. */
S_FIRST_SO,
/* Second non-null SO found, just after the first one. Means that the first
is in fact a directory name. */
S_SECOND_SO,
/* Non-null OSO found. Debugging info are DWARF in this OSO file. */
S_DWARF_FILE,
S_STAB_FILE
} state = S_NO_SO;
for (i = 0; i < number_of_symbols; i++)
{
const asymbol *sym = symbol_table[i];
bfd_mach_o_asymbol *mach_o_sym = (bfd_mach_o_asymbol *)sym;
switch (state)
{
case S_NO_SO:
if (mach_o_sym->n_type == N_SO)
{
/* Start of object stab. */
if (sym->name == NULL || sym->name[0] == 0)
{
/* Unexpected empty N_SO. */
complaint (_("Unexpected empty N_SO stab"));
}
else
{
file_so = sym;
state = S_FIRST_SO;
}
}
else if (sym->flags & BSF_DEBUGGING)
{
if (mach_o_sym->n_type == N_OPT)
{
/* No complaint for OPT. */
break;
}
/* Debugging symbols are not expected here. */
complaint (_("%s: Unexpected debug stab outside SO markers"),
objfile_name (objfile));
}
else
{
/* Non-debugging symbols go to the minimal symbol table. */
macho_symtab_add_minsym (reader, objfile, sym);
}
break;
case S_FIRST_SO:
case S_SECOND_SO:
if (mach_o_sym->n_type == N_SO)
{
if (sym->name == NULL || sym->name[0] == 0)
{
/* Unexpected empty N_SO. */
complaint (_("Empty SO section"));
state = S_NO_SO;
}
else if (state == S_FIRST_SO)
{
/* Second SO stab for the file name. */
file_so = sym;
state = S_SECOND_SO;
}
else
complaint (_("Three SO in a raw"));
}
else if (mach_o_sym->n_type == N_OSO)
{
if (sym->name == NULL || sym->name[0] == 0)
{
/* Empty OSO. Means that this file was compiled with
stabs. */
state = S_STAB_FILE;
warning (_("stabs debugging not supported for %s"),
file_so->name);
}
else
{
/* Non-empty OSO for a Dwarf file. */
oso_file = symbol_table + i;
nbr_syms = 0;
state = S_DWARF_FILE;
}
}
else
complaint (_("Unexpected stab after SO"));
break;
case S_STAB_FILE:
case S_DWARF_FILE:
if (mach_o_sym->n_type == N_SO)
{
if (sym->name == NULL || sym->name[0] == 0)
{
/* End of file. */
if (state == S_DWARF_FILE)
oso_vector_ptr->emplace_back (oso_file, symbol_table + i,
nbr_syms);
state = S_NO_SO;
}
else
{
complaint (_("Missing nul SO"));
file_so = sym;
state = S_FIRST_SO;
}
}
else if (sym->flags & BSF_DEBUGGING)
{
if (state == S_STAB_FILE)
{
/* FIXME: to be implemented. */
}
else
{
switch (mach_o_sym->n_type)
{
case N_FUN:
if (sym->name == NULL || sym->name[0] == 0)
break;
/* Fall through. */
case N_STSYM:
/* Interesting symbol. */
nbr_syms++;
break;
case N_ENSYM:
case N_BNSYM:
case N_GSYM:
break;
default:
complaint (_("unhandled stab for dwarf OSO file"));
break;
}
}
}
else
complaint (_("non-debugging symbol within SO"));
break;
}
}
if (state != S_NO_SO)
complaint (_("missing nul SO"));
}
