/* Process source files and output type information.
- Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
- Free Software Foundation, Inc.
+ Copyright (C) 2002-2015 Free Software Foundation, Inc.
This file is part of GCC.
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
+#ifdef HOST_GENERATOR_FILE
+#include "config.h"
+#define GENERATOR_FILE 1
+#else
#include "bconfig.h"
+#endif
#include "system.h"
#include "errors.h" /* for fatal */
#include "getopt.h"
-#include "double-int.h"
#include "version.h" /* for version_string & pkgversion_string. */
#include "hashtab.h"
#include "xregex.h"
#include "obstack.h"
#include "gengtype.h"
+#include "filenames.h"
/* Data types, macros, etc. used only in this file. */
-/* Kinds of types we can understand. */
-enum typekind
-{
- TYPE_SCALAR,
- TYPE_STRING,
- TYPE_STRUCT,
- TYPE_UNION,
- TYPE_POINTER,
- TYPE_ARRAY,
- TYPE_LANG_STRUCT,
- TYPE_PARAM_STRUCT
-};
-
-
-/* A way to pass data through to the output end. */
-struct options
-{
- struct options *next;
- const char *name;
- const char *info;
-};
-
-/* Option data for the 'nested_ptr' option. */
-struct nested_ptr_data
-{
- type_p type;
- const char *convert_to;
- const char *convert_from;
-};
-
-/* A name and a type. */
-struct pair
-{
- pair_p next;
- const char *name;
- type_p type;
- struct fileloc line;
- options_p opt;
-};
-
-#define NUM_PARAM 10
-
-/* A description of a type. */
-enum gc_used_enum
-{
- GC_UNUSED = 0,
- GC_USED,
- /* Used for structures whose definitions we haven't seen so far when
- we encounter a pointer to it that is annotated with ``maybe_undef''.
- If after reading in everything we don't have source file
- information for it, we assume that it never has been defined. */
- GC_MAYBE_POINTED_TO,
- GC_POINTED_TO
-};
-
-struct type
-{
- enum typekind kind;
- type_p next;
- type_p pointer_to;
- enum gc_used_enum gc_used;
- union
- {
- type_p p;
- struct
- {
- const char *tag;
- struct fileloc line;
- pair_p fields;
- options_p opt;
- lang_bitmap bitmap;
- type_p lang_struct;
- } s;
- bool scalar_is_char;
- struct
- {
- type_p p;
- const char *len;
- } a;
- struct
- {
- type_p stru;
- type_p param[NUM_PARAM];
- struct fileloc line;
- } param_struct;
- } u;
-};
-
-#define UNION_P(x) \
- ((x)->kind == TYPE_UNION || \
- ((x)->kind == TYPE_LANG_STRUCT \
- && (x)->u.s.lang_struct->kind == TYPE_UNION))
-#define UNION_OR_STRUCT_P(x) \
- ((x)->kind == TYPE_UNION \
- || (x)->kind == TYPE_STRUCT \
- || (x)->kind == TYPE_LANG_STRUCT)
-
-
-
-
/* The list of output files. */
outf_p output_files;
/* Level for verbose messages. */
int verbosity_level;
+/* We have a type count and use it to set the state_number of newly
+ allocated types to some unique negative number. */
+static int type_count;
+
/* The backup directory should be in the same file system as the
generated files, otherwise the rename(2) system call would fail.
If NULL, no backup is made when overwriting a generated file. */
static int get_prefix_langdir_index (const char *);
static const char *get_file_langdir (const input_file *);
+
+static void dump_pair (int indent, pair_p p);
+static void dump_type (int indent, type_p p);
+static void dump_type_list (int indent, type_p p);
\f
/* Nonzero iff an error has occurred. */
va_end (ap);
}
+\f
+/* Locate the ultimate base class of struct S. */
-/* asprintf, but produces fatal message on out-of-memory. */
-char *
-xasprintf (const char *format, ...)
+static const_type_p
+get_ultimate_base_class (const_type_p s)
{
- int n;
- char *result;
- va_list ap;
-
- va_start (ap, format);
- n = vasprintf (&result, format, ap);
- if (result == NULL || n < 0)
- fatal ("out of memory");
- va_end (ap);
+ while (s->u.s.base_class)
+ s = s->u.s.base_class;
+ return s;
+}
- return result;
+static type_p
+get_ultimate_base_class (type_p s)
+{
+ while (s->u.s.base_class)
+ s = s->u.s.base_class;
+ return s;
}
\f
/* Input file handling. */
#if ENABLE_CHECKING
/* Utility debugging function, printing the various type counts within
- a list of types. Called thru the DBGPRINT_COUNT_TYPE macro. */
+ a list of types. Called through the DBGPRINT_COUNT_TYPE macro. */
void
dbgprint_count_type_at (const char *fil, int lin, const char *msg, type_p t)
{
int nb_types = 0, nb_scalar = 0, nb_string = 0;
int nb_struct = 0, nb_union = 0, nb_array = 0, nb_pointer = 0;
- int nb_lang_struct = 0, nb_param_struct = 0;
+ int nb_lang_struct = 0;
+ int nb_user_struct = 0, nb_undefined = 0;
type_p p = NULL;
for (p = t; p; p = p->next)
{
nb_types++;
switch (p->kind)
{
+ case TYPE_UNDEFINED:
+ nb_undefined++;
case TYPE_SCALAR:
nb_scalar++;
break;
case TYPE_STRUCT:
nb_struct++;
break;
+ case TYPE_USER_STRUCT:
+ nb_user_struct++;
+ break;
case TYPE_UNION:
nb_union++;
break;
case TYPE_LANG_STRUCT:
nb_lang_struct++;
break;
- case TYPE_PARAM_STRUCT:
- nb_param_struct++;
- break;
- default:
+ case TYPE_NONE:
gcc_unreachable ();
}
}
fprintf (stderr, "@@%%@@ %d structs, %d unions\n", nb_struct, nb_union);
if (nb_pointer > 0 || nb_array > 0)
fprintf (stderr, "@@%%@@ %d pointers, %d arrays\n", nb_pointer, nb_array);
- if (nb_lang_struct > 0 || nb_param_struct > 0)
- fprintf (stderr, "@@%%@@ %d lang_structs, %d param_structs\n",
- nb_lang_struct, nb_param_struct);
+ if (nb_lang_struct > 0)
+ fprintf (stderr, "@@%%@@ %d lang_structs\n", nb_lang_struct);
+ if (nb_user_struct > 0)
+ fprintf (stderr, "@@%%@@ %d user_structs\n", nb_user_struct);
+ if (nb_undefined > 0)
+ fprintf (stderr, "@@%%@@ %d undefined types\n", nb_undefined);
fprintf (stderr, "\n");
}
#endif /* ENABLE_CHECKING */
lang_bitmap bitmap = get_lang_bitmap (gt_files[f]);
const char *basename = get_file_basename (gt_files[f]);
const char *slashpos = strchr (basename, '/');
+#ifdef HAVE_DOS_BASED_FILE_SYSTEM
+ const char *slashpos2 = strchr (basename, '\\');
+
+ if (!slashpos || (slashpos2 && slashpos2 < slashpos))
+ slashpos = slashpos2;
+#endif
if (slashpos)
{
/* The one and only TYPE_STRING. */
-static struct type string_type = {
- TYPE_STRING, 0, 0, GC_USED, {0}
+struct type string_type = {
+ TYPE_STRING, 0, 0, 0, GC_USED, {0}
};
/* The two and only TYPE_SCALARs. Their u.scalar_is_char flags are
- set to appropriate values at the beginning of main. */
+ set early in main. */
-static struct type scalar_nonchar = {
- TYPE_SCALAR, 0, 0, GC_USED, {0}
+struct type scalar_nonchar = {
+ TYPE_SCALAR, 0, 0, 0, GC_USED, {0}
};
-static struct type scalar_char = {
- TYPE_SCALAR, 0, 0, GC_USED, {0}
+struct type scalar_char = {
+ TYPE_SCALAR, 0, 0, 0, GC_USED, {0}
};
/* Lists of various things. */
-static pair_p typedefs;
-static type_p structures;
-static type_p param_structs;
-static pair_p variables;
+pair_p typedefs = NULL;
+type_p structures = NULL;
+pair_p variables = NULL;
-static type_p find_param_structure (type_p t, type_p param[NUM_PARAM]);
static type_p adjust_field_tree_exp (type_p t, options_p opt);
static type_p adjust_field_rtx_def (type_p t, options_p opt);
for (p = typedefs; p != NULL; p = p->next)
if (strcmp (p->name, s) == 0)
{
- if (p->type != t)
+ if (p->type != t && strcmp (s, "result_type") != 0)
{
error_at_line (pos, "type `%s' previously defined", s);
error_at_line (&p->line, "previously defined here");
do_typedef (s, &scalar_nonchar, pos);
}
-/* Return the type previously defined for S. Use POS to report errors. */
+/* Similar to strtok_r. */
+
+static char *
+strtoken (char *str, const char *delim, char **next)
+{
+ char *p;
+
+ if (str == NULL)
+ str = *next;
+
+ /* Skip the leading delimiters. */
+ str += strspn (str, delim);
+ if (*str == '\0')
+ /* This is an empty token. */
+ return NULL;
+
+ /* The current token. */
+ p = str;
+
+ /* Find the next delimiter. */
+ str += strcspn (str, delim);
+ if (*str == '\0')
+ /* This is the last token. */
+ *next = str;
+ else
+ {
+ /* Terminate the current token. */
+ *str = '\0';
+ /* Advance to the next token. */
+ *next = str + 1;
+ }
+
+ return p;
+}
+
+/* Define TYPE_NAME to be a user defined type at location POS. */
type_p
-resolve_typedef (const char *s, struct fileloc *pos)
+create_user_defined_type (const char *type_name, struct fileloc *pos)
+{
+ type_p ty = find_structure (type_name, TYPE_USER_STRUCT);
+
+ /* We might have already seen an incomplete decl of the given type,
+ in which case we won't have yet seen a GTY((user)), and the type will
+ only have kind "TYPE_STRUCT". Mark it as a user struct. */
+ ty->kind = TYPE_USER_STRUCT;
+
+ ty->u.s.line = *pos;
+ ty->u.s.bitmap = get_lang_bitmap (pos->file);
+ do_typedef (type_name, ty, pos);
+
+ /* If TYPE_NAME specifies a template, create references to the types
+ in the template by pretending that each type is a field of TY.
+ This is needed to make sure that the types referenced by the
+ template are marked as used. */
+ char *str = xstrdup (type_name);
+ char *open_bracket = strchr (str, '<');
+ if (open_bracket)
+ {
+ /* We only accept simple template declarations (see
+ require_template_declaration), so we only need to parse a
+ comma-separated list of strings, implicitly assumed to
+ be type names, potentially with "*" characters. */
+ char *arg = open_bracket + 1;
+ /* Workaround -Wmaybe-uninitialized false positive during
+ profiledbootstrap by initializing it. */
+ char *next = NULL;
+ char *type_id = strtoken (arg, ",>", &next);
+ pair_p fields = 0;
+ while (type_id)
+ {
+ /* Create a new field for every type found inside the template
+ parameter list. */
+
+ /* Support a single trailing "*" character. */
+ const char *star = strchr (type_id, '*');
+ int is_ptr = (star != NULL);
+ size_t offset_to_star = star - type_id;
+ if (is_ptr)
+ offset_to_star = star - type_id;
+
+ if (strstr (type_id, "char*"))
+ {
+ type_id = strtoken (0, ",>", &next);
+ continue;
+ }
+
+ char *field_name = xstrdup (type_id);
+
+ type_p arg_type;
+ if (is_ptr)
+ {
+ /* Strip off the first '*' character (and any subsequent text). */
+ *(field_name + offset_to_star) = '\0';
+
+ arg_type = find_structure (field_name, TYPE_STRUCT);
+ arg_type = create_pointer (arg_type);
+ }
+ else
+ arg_type = resolve_typedef (field_name, pos);
+
+ fields = create_field_at (fields, arg_type, field_name, 0, pos);
+ type_id = strtoken (0, ",>", &next);
+ }
+
+ /* Associate the field list to TY. */
+ ty->u.s.fields = fields;
+ }
+ free (str);
+
+ return ty;
+}
+
+
+/* Given a typedef name S, return its associated type. Return NULL if
+ S is not a registered type name. */
+
+static type_p
+type_for_name (const char *s)
{
pair_p p;
+
+ /* Special-case support for types within a "gcc::" namespace. Rather
+ than fully-supporting namespaces, simply strip off the "gcc::" prefix
+ where present. This allows us to have GTY roots of this form:
+ extern GTY(()) gcc::some_type *some_ptr;
+ where the autogenerated functions will refer to simply "some_type",
+ where they can be resolved into their namespace. */
+ if (0 == strncmp (s, "gcc::", 5))
+ s += 5;
+
for (p = typedefs; p != NULL; p = p->next)
if (strcmp (p->name, s) == 0)
return p->type;
- error_at_line (pos, "unidentified type `%s'", s);
- return &scalar_nonchar; /* treat as "int" */
+ return NULL;
+}
+
+
+/* Create an undefined type with name S and location POS. Return the
+ newly created type. */
+
+static type_p
+create_undefined_type (const char *s, struct fileloc *pos)
+{
+ type_p ty = find_structure (s, TYPE_UNDEFINED);
+ ty->u.s.line = *pos;
+ ty->u.s.bitmap = get_lang_bitmap (pos->file);
+ do_typedef (s, ty, pos);
+ return ty;
+}
+
+
+/* Return the type previously defined for S. Use POS to report errors. */
+
+type_p
+resolve_typedef (const char *s, struct fileloc *pos)
+{
+ bool is_template_instance = (strchr (s, '<') != NULL);
+ type_p p = type_for_name (s);
+
+ /* If we did not find a typedef registered, generate a TYPE_UNDEFINED
+ type for regular type identifiers. If the type identifier S is a
+ template instantiation, however, we treat it as a user defined
+ type.
+
+ FIXME, this is actually a limitation in gengtype. Supporting
+ template types and their instances would require keeping separate
+ track of the basic types definition and its instances. This
+ essentially forces all template classes in GC to be marked
+ GTY((user)). */
+ if (!p)
+ p = (is_template_instance)
+ ? create_user_defined_type (s, pos)
+ : create_undefined_type (s, pos);
+
+ return p;
+}
+
+/* Add SUBCLASS to head of linked list of BASE's subclasses. */
+
+void add_subclass (type_p base, type_p subclass)
+{
+ gcc_assert (union_or_struct_p (base));
+ gcc_assert (union_or_struct_p (subclass));
+
+ subclass->u.s.next_sibling_class = base->u.s.first_subclass;
+ base->u.s.first_subclass = subclass;
}
-/* Create and return a new structure with tag NAME (or a union iff
- ISUNION is nonzero), at POS with fields FIELDS and options O. */
+/* Create and return a new structure with tag NAME at POS with fields
+ FIELDS and options O. The KIND of structure must be one of
+ TYPE_STRUCT, TYPE_UNION or TYPE_USER_STRUCT. */
type_p
-new_structure (const char *name, int isunion, struct fileloc *pos,
- pair_p fields, options_p o)
+new_structure (const char *name, enum typekind kind, struct fileloc *pos,
+ pair_p fields, options_p o, type_p base_class)
{
type_p si;
type_p s = NULL;
lang_bitmap bitmap = get_lang_bitmap (pos->file);
+ bool isunion = (kind == TYPE_UNION);
+
+ gcc_assert (union_or_struct_p (kind));
for (si = structures; si != NULL; si = si->next)
if (strcmp (name, si->u.s.tag) == 0 && UNION_P (si) == isunion)
else if (si->u.s.line.file != NULL && si->u.s.bitmap != bitmap)
{
ls = si;
+ type_count++;
si = XCNEW (struct type);
memcpy (si, ls, sizeof (struct type));
ls->kind = TYPE_LANG_STRUCT;
ls->u.s.lang_struct = si;
ls->u.s.fields = NULL;
si->next = NULL;
+ si->state_number = -type_count;
si->pointer_to = NULL;
si->u.s.lang_struct = ls;
}
if (ls != NULL && s == NULL)
{
+ type_count++;
s = XCNEW (struct type);
+ s->state_number = -type_count;
s->next = ls->u.s.lang_struct;
ls->u.s.lang_struct = s;
s->u.s.lang_struct = ls;
if (s == NULL)
{
+ type_count++;
s = XCNEW (struct type);
+ s->state_number = -type_count;
s->next = structures;
structures = s;
}
- if (s->u.s.line.file != NULL
- || (s->u.s.lang_struct && (s->u.s.lang_struct->u.s.bitmap & bitmap)))
+ if (s->u.s.lang_struct && (s->u.s.lang_struct->u.s.bitmap & bitmap))
{
error_at_line (pos, "duplicate definition of '%s %s'",
isunion ? "union" : "struct", s->u.s.tag);
error_at_line (&s->u.s.line, "previous definition here");
}
- s->kind = isunion ? TYPE_UNION : TYPE_STRUCT;
+ s->kind = kind;
s->u.s.tag = name;
s->u.s.line = *pos;
s->u.s.fields = fields;
s->u.s.bitmap = bitmap;
if (s->u.s.lang_struct)
s->u.s.lang_struct->u.s.bitmap |= bitmap;
+ s->u.s.base_class = base_class;
+ if (base_class)
+ add_subclass (base_class, s);
return s;
}
-/* Return the previously-defined structure with tag NAME (or a union
- iff ISUNION is nonzero), or a new empty structure or union if none
- was defined previously. */
+/* Return the previously-defined structure or union with tag NAME,
+ or a new empty structure or union if none was defined previously.
+ The KIND of structure must be one of TYPE_STRUCT, TYPE_UNION or
+ TYPE_USER_STRUCT. */
type_p
-find_structure (const char *name, int isunion)
+find_structure (const char *name, enum typekind kind)
{
type_p s;
+ bool isunion = (kind == TYPE_UNION);
+
+ gcc_assert (kind == TYPE_UNDEFINED || union_or_struct_p (kind));
for (s = structures; s != NULL; s = s->next)
if (strcmp (name, s->u.s.tag) == 0 && UNION_P (s) == isunion)
return s;
+ type_count++;
s = XCNEW (struct type);
s->next = structures;
+ s->state_number = -type_count;
structures = s;
- s->kind = isunion ? TYPE_UNION : TYPE_STRUCT;
+ s->kind = kind;
s->u.s.tag = name;
structures = s;
return s;
}
-/* Return the previously-defined parameterized structure for structure
- T and parameters PARAM, or a new parameterized empty structure or
- union if none was defined previously. */
-
-static type_p
-find_param_structure (type_p t, type_p param[NUM_PARAM])
-{
- type_p res;
-
- for (res = param_structs; res; res = res->next)
- if (res->u.param_struct.stru == t
- && memcmp (res->u.param_struct.param, param,
- sizeof (type_p) * NUM_PARAM) == 0)
- break;
- if (res == NULL)
- {
- res = XCNEW (struct type);
- res->kind = TYPE_PARAM_STRUCT;
- res->next = param_structs;
- param_structs = res;
- res->u.param_struct.stru = t;
- memcpy (res->u.param_struct.param, param, sizeof (type_p) * NUM_PARAM);
- }
- return res;
-}
-
/* Return a scalar type with name NAME. */
type_p
return &scalar_nonchar;
}
+
/* Return a pointer to T. */
type_p
if (!t->pointer_to)
{
type_p r = XCNEW (struct type);
+ type_count++;
+ r->state_number = -type_count;
r->kind = TYPE_POINTER;
r->u.p = t;
t->pointer_to = r;
{
type_p v;
+ type_count++;
v = XCNEW (struct type);
v->kind = TYPE_ARRAY;
+ v->state_number = -type_count;
v->u.a.p = t;
v->u.a.len = len;
return v;
}
-/* Return an options structure with name NAME and info INFO. NEXT is the
- next option in the chain. */
+/* Return a string options structure with name NAME and info INFO.
+ NEXT is the next option in the chain. */
+options_p
+create_string_option (options_p next, const char *name, const char *info)
+{
+ options_p o = XNEW (struct options);
+ o->kind = OPTION_STRING;
+ o->next = next;
+ o->name = name;
+ o->info.string = info;
+ return o;
+}
+/* Create a type options structure with name NAME and info INFO. NEXT
+ is the next option in the chain. */
options_p
-create_option (options_p next, const char *name, const void *info)
+create_type_option (options_p next, const char* name, type_p info)
{
options_p o = XNEW (struct options);
o->next = next;
o->name = name;
- o->info = (const char *) info;
+ o->kind = OPTION_TYPE;
+ o->info.type = info;
+ return o;
+}
+
+/* Create a nested pointer options structure with name NAME and info
+ INFO. NEXT is the next option in the chain. */
+options_p
+create_nested_option (options_p next, const char* name,
+ struct nested_ptr_data* info)
+{
+ options_p o;
+ o = XNEW (struct options);
+ o->next = next;
+ o->name = name;
+ o->kind = OPTION_NESTED;
+ o->info.nested = info;
return o;
}
d->type = adjust_field_type (t, 0);
d->convert_to = to;
d->convert_from = from;
- return create_option (next, "nested_ptr", d);
+ return create_nested_option (next, "nested_ptr", d);
}
/* Add a variable named S of type T with options O defined at POS,
to `variables'. */
-
void
note_variable (const char *s, type_p t, options_p o, struct fileloc *pos)
{
/* Create a fake field with the given type and name. NEXT is the next
field in the chain. */
#define create_field(next,type,name) \
- create_field_all(next,type,name, 0, this_file, __LINE__)
+ create_field_all (next,type,name, 0, this_file, __LINE__)
/* Like create_field, but the field is only valid when condition COND
is true. */
The field has a tag of "1". This allows us to make the presence
of a field of type TYPE depend on some boolean "desc" being true. */
union_fields = create_field (NULL, type, "");
- union_fields->opt = create_option (union_fields->opt, "dot", "");
- union_fields->opt = create_option (union_fields->opt, "tag", "1");
- union_type = new_structure (xasprintf ("%s_%d", "fake_union", id++), 1,
- &lexer_line, union_fields, NULL);
+ union_fields->opt =
+ create_string_option (union_fields->opt, "dot", "");
+ union_fields->opt =
+ create_string_option (union_fields->opt, "tag", "1");
+ union_type =
+ new_structure (xasprintf ("%s_%d", "fake_union", id++), TYPE_UNION,
+ &lexer_line, union_fields, NULL, NULL);
/* Create the field and give it the new fake union type. Add a "desc"
tag that specifies the condition under which the field is valid. */
return create_field_all (next, union_type, name,
- create_option (0, "desc", cond), this_file, line);
+ create_string_option (0, "desc", cond),
+ this_file, line);
}
#define create_optional_field(next,type,name,cond) \
int k;
rtx_next_new[i] = -1;
- if (strncmp (rtx_format[i], "iuu", 3) == 0)
- rtx_next_new[i] = 2;
+ if (strncmp (rtx_format[i], "uu", 2) == 0)
+ rtx_next_new[i] = 1;
else if (i == COND_EXEC || i == SET || i == EXPR_LIST || i == INSN_LIST)
rtx_next_new[i] = 1;
else
return &string_type;
}
- nodot = create_option (NULL, "dot", "");
+ nodot = create_string_option (NULL, "dot", "");
- rtx_tp = create_pointer (find_structure ("rtx_def", 0));
- rtvec_tp = create_pointer (find_structure ("rtvec_def", 0));
- tree_tp = create_pointer (find_structure ("tree_node", 1));
- mem_attrs_tp = create_pointer (find_structure ("mem_attrs", 0));
- reg_attrs_tp = create_pointer (find_structure ("reg_attrs", 0));
- basic_block_tp = create_pointer (find_structure ("basic_block_def", 0));
+ rtx_tp = create_pointer (find_structure ("rtx_def", TYPE_STRUCT));
+ rtvec_tp = create_pointer (find_structure ("rtvec_def", TYPE_STRUCT));
+ tree_tp = create_pointer (find_structure ("tree_node", TYPE_UNION));
+ mem_attrs_tp = create_pointer (find_structure ("mem_attrs", TYPE_STRUCT));
+ reg_attrs_tp =
+ create_pointer (find_structure ("reg_attrs", TYPE_STRUCT));
+ basic_block_tp =
+ create_pointer (find_structure ("basic_block_def", TYPE_STRUCT));
constant_tp =
- create_pointer (find_structure ("constant_descriptor_rtx", 0));
+ create_pointer (find_structure ("constant_descriptor_rtx", TYPE_STRUCT));
scalar_tp = &scalar_nonchar; /* rtunion int */
{
{
case NOTE_INSN_MAX:
case NOTE_INSN_DELETED_LABEL:
+ case NOTE_INSN_DELETED_DEBUG_LABEL:
note_flds = create_field (note_flds, &string_type, "rt_str");
break;
break;
case NOTE_INSN_VAR_LOCATION:
+ case NOTE_INSN_CALL_ARG_LOCATION:
note_flds = create_field (note_flds, rtx_tp, "rt_rtx");
break;
/* NOTE_INSN_MAX is used as the default field for line
number notes. */
if (c == NOTE_INSN_MAX)
- note_flds->opt = create_option (nodot, "default", "");
+ note_flds->opt =
+ create_string_option (nodot, "default", "");
else
- note_flds->opt = create_option (nodot, "tag", note_insn_name[c]);
+ note_flds->opt =
+ create_string_option (nodot, "tag", note_insn_name[c]);
}
- note_union_tp = new_structure ("rtx_def_note_subunion", 1,
- &lexer_line, note_flds, NULL);
+ note_union_tp = new_structure ("rtx_def_note_subunion", TYPE_UNION,
+ &lexer_line, note_flds, NULL, NULL);
}
/* Create a type to represent the various forms of SYMBOL_REF_DATA. */
{
pair_p sym_flds;
-
sym_flds = create_field (NULL, tree_tp, "rt_tree");
- sym_flds->opt = create_option (nodot, "default", "");
-
+ sym_flds->opt = create_string_option (nodot, "default", "");
sym_flds = create_field (sym_flds, constant_tp, "rt_constant");
- sym_flds->opt = create_option (nodot, "tag", "1");
-
- symbol_union_tp = new_structure ("rtx_def_symbol_subunion", 1,
- &lexer_line, sym_flds, NULL);
+ sym_flds->opt = create_string_option (nodot, "tag", "1");
+ symbol_union_tp = new_structure ("rtx_def_symbol_subunion", TYPE_UNION,
+ &lexer_line, sym_flds, NULL, NULL);
}
for (i = 0; i < NUM_RTX_CODE; i++)
{
case 'i':
case 'n':
case 'w':
+ case 'r':
t = scalar_tp;
subname = "rt_int";
break;
case '0':
if (i == MEM && aindex == 1)
t = mem_attrs_tp, subname = "rt_mem";
- else if (i == JUMP_INSN && aindex == 8)
+ else if (i == JUMP_INSN && aindex == 7)
t = rtx_tp, subname = "rt_rtx";
- else if (i == CODE_LABEL && aindex == 5)
- t = scalar_tp, subname = "rt_int";
else if (i == CODE_LABEL && aindex == 4)
+ t = scalar_tp, subname = "rt_int";
+ else if (i == CODE_LABEL && aindex == 3)
t = rtx_tp, subname = "rt_rtx";
else if (i == LABEL_REF && (aindex == 1 || aindex == 2))
t = rtx_tp, subname = "rt_rtx";
- else if (i == NOTE && aindex == 4)
+ else if (i == NOTE && aindex == 3)
t = note_union_tp, subname = "";
- else if (i == NOTE && aindex == 5)
+ else if (i == NOTE && aindex == 4)
t = scalar_tp, subname = "rt_int";
- else if (i == NOTE && aindex >= 7)
+ else if (i == NOTE && aindex >= 6)
t = scalar_tp, subname = "rt_int";
else if (i == ADDR_DIFF_VEC && aindex == 4)
t = scalar_tp, subname = "rt_int";
t = scalar_tp, subname = "rt_int";
else if (i == DEBUG_EXPR && aindex == 0)
t = tree_tp, subname = "rt_tree";
- else if (i == REG && aindex == 1)
- t = scalar_tp, subname = "rt_int";
- else if (i == REG && aindex == 2)
- t = reg_attrs_tp, subname = "rt_reg";
- else if (i == SCRATCH && aindex == 0)
- t = scalar_tp, subname = "rt_int";
else if (i == SYMBOL_REF && aindex == 1)
- t = scalar_tp, subname = "rt_int";
- else if (i == SYMBOL_REF && aindex == 2)
t = symbol_union_tp, subname = "";
- else if (i == BARRIER && aindex >= 3)
+ else if (i == JUMP_TABLE_DATA && aindex >= 4)
t = scalar_tp, subname = "rt_int";
+ else if (i == BARRIER && aindex >= 2)
+ t = scalar_tp, subname = "rt_int";
+ else if (i == ENTRY_VALUE && aindex == 0)
+ t = rtx_tp, subname = "rt_rtx";
else
{
- error_at_line (&lexer_line,
- "rtx type `%s' has `0' in position %lu, can't handle",
- rtx_name[i], (unsigned long) aindex);
+ error_at_line
+ (&lexer_line,
+ "rtx type `%s' has `0' in position %lu, can't handle",
+ rtx_name[i], (unsigned long) aindex);
t = &string_type;
subname = "rt_int";
}
break;
default:
- error_at_line (&lexer_line,
- "rtx type `%s' has `%c' in position %lu, can't handle",
- rtx_name[i], rtx_format[i][aindex],
- (unsigned long) aindex);
+ error_at_line
+ (&lexer_line,
+ "rtx type `%s' has `%c' in position %lu, can't handle",
+ rtx_name[i], rtx_format[i][aindex],
+ (unsigned long) aindex);
t = &string_type;
subname = "rt_int";
break;
subname));
subfields->opt = nodot;
if (t == note_union_tp)
- subfields->opt = create_option (subfields->opt, "desc",
- "NOTE_KIND (&%0)");
+ subfields->opt =
+ create_string_option (subfields->opt, "desc",
+ "NOTE_KIND (&%0)");
if (t == symbol_union_tp)
- subfields->opt = create_option (subfields->opt, "desc",
- "CONSTANT_POOL_ADDRESS_P (&%0)");
+ subfields->opt =
+ create_string_option (subfields->opt, "desc",
+ "CONSTANT_POOL_ADDRESS_P (&%0)");
}
+ if (i == REG)
+ subfields = create_field (subfields, reg_attrs_tp, "reg.attrs");
+
if (i == SYMBOL_REF)
{
- /* Add the "block_sym" field if SYMBOL_REF_HAS_BLOCK_INFO_P holds. */
- type_p field_tp = find_structure ("block_symbol", 0);
+ /* Add the "block_sym" field if SYMBOL_REF_HAS_BLOCK_INFO_P
+ holds. */
+ type_p field_tp = find_structure ("block_symbol", TYPE_STRUCT);
subfields
= create_optional_field (subfields, field_tp, "block_sym",
"SYMBOL_REF_HAS_BLOCK_INFO_P (&%0)");
}
sname = xasprintf ("rtx_def_%s", rtx_name[i]);
- substruct = new_structure (sname, 0, &lexer_line, subfields, NULL);
+ substruct = new_structure (sname, TYPE_STRUCT, &lexer_line, subfields,
+ NULL, NULL);
ftag = xstrdup (rtx_name[i]);
for (nmindex = 0; nmindex < strlen (ftag); nmindex++)
ftag[nmindex] = TOUPPER (ftag[nmindex]);
-
flds = create_field (flds, substruct, "");
- flds->opt = create_option (nodot, "tag", ftag);
+ flds->opt = create_string_option (nodot, "tag", ftag);
}
-
- return new_structure ("rtx_def_subunion", 1, &lexer_line, flds, nodot);
+ return new_structure ("rtx_def_subunion", TYPE_UNION, &lexer_line, flds,
+ nodot, NULL);
}
/* Handle `special("tree_exp")'. This is a special case for
return &string_type;
}
- nodot = create_option (NULL, "dot", "");
+ nodot = create_string_option (NULL, "dot", "");
flds = create_field (NULL, t, "");
- flds->opt = create_option (nodot, "length",
- "TREE_OPERAND_LENGTH ((tree) &%0)");
- flds->opt = create_option (flds->opt, "default", "");
+ flds->opt = create_string_option (nodot, "length",
+ "TREE_OPERAND_LENGTH ((tree) &%0)");
+ flds->opt = create_string_option (flds->opt, "default", "");
- return new_structure ("tree_exp_subunion", 1, &lexer_line, flds, nodot);
+ return new_structure ("tree_exp_subunion", TYPE_UNION, &lexer_line, flds,
+ nodot, NULL);
}
/* Perform any special processing on a type T, about to become the type
{
int length_p = 0;
const int pointer_p = t->kind == TYPE_POINTER;
- type_p params[NUM_PARAM];
- int params_p = 0;
- int i;
-
- for (i = 0; i < NUM_PARAM; i++)
- params[i] = NULL;
for (; opt; opt = opt->next)
if (strcmp (opt->name, "length") == 0)
- length_p = 1;
- else if (strcmp (opt->name, "param_is") == 0
- || (strncmp (opt->name, "param", 5) == 0
- && ISDIGIT (opt->name[5])
- && strcmp (opt->name + 6, "_is") == 0))
{
- int num = ISDIGIT (opt->name[5]) ? opt->name[5] - '0' : 0;
-
- if (!UNION_OR_STRUCT_P (t)
- && (t->kind != TYPE_POINTER || !UNION_OR_STRUCT_P (t->u.p)))
+ if (length_p)
+ error_at_line (&lexer_line, "duplicate `%s' option", opt->name);
+ if (t->u.p->kind == TYPE_SCALAR || t->u.p->kind == TYPE_STRING)
{
error_at_line (&lexer_line,
- "option `%s' may only be applied to structures or structure pointers",
- opt->name);
- return t;
+ "option `%s' may not be applied to "
+ "arrays of atomic types", opt->name);
}
-
- params_p = 1;
- if (params[num] != NULL)
- error_at_line (&lexer_line, "duplicate `%s' option", opt->name);
- if (!ISDIGIT (opt->name[5]))
- params[num] =
- create_pointer (CONST_CAST2 (type_p, const char *, opt->info));
- else
- params[num] = CONST_CAST2 (type_p, const char *, opt->info);
+ length_p = 1;
}
- else if (strcmp (opt->name, "special") == 0)
+ else if (strcmp (opt->name, "special") == 0
+ && opt->kind == OPTION_STRING)
{
- const char *special_name = opt->info;
+ const char *special_name = opt->info.string;
if (strcmp (special_name, "tree_exp") == 0)
t = adjust_field_tree_exp (t, opt);
else if (strcmp (special_name, "rtx_def") == 0)
error_at_line (&lexer_line, "unknown special `%s'", special_name);
}
- if (params_p)
- {
- type_p realt;
-
- if (pointer_p)
- t = t->u.p;
- realt = find_param_structure (t, params);
- t = pointer_p ? create_pointer (realt) : realt;
- }
-
if (!length_p
&& pointer_p && t->u.p->kind == TYPE_SCALAR && t->u.p->u.scalar_is_char)
return &string_type;
}
\f
-static void set_gc_used_type (type_p, enum gc_used_enum, type_p *);
+static void set_gc_used_type (type_p, enum gc_used_enum, bool = false);
static void set_gc_used (pair_p);
/* Handle OPT for set_gc_used_type. */
static void
process_gc_options (options_p opt, enum gc_used_enum level, int *maybe_undef,
- int *pass_param, int *length, int *skip,
- type_p *nested_ptr)
+ int *length, int *skip, type_p *nested_ptr)
{
options_p o;
for (o = opt; o; o = o->next)
- if (strcmp (o->name, "ptr_alias") == 0 && level == GC_POINTED_TO)
- set_gc_used_type (CONST_CAST2 (type_p, const char *, o->info),
- GC_POINTED_TO, NULL);
+ if (strcmp (o->name, "ptr_alias") == 0 && level == GC_POINTED_TO
+ && o->kind == OPTION_TYPE)
+ set_gc_used_type (o->info.type,
+ GC_POINTED_TO);
else if (strcmp (o->name, "maybe_undef") == 0)
*maybe_undef = 1;
- else if (strcmp (o->name, "use_params") == 0)
- *pass_param = 1;
else if (strcmp (o->name, "length") == 0)
*length = 1;
else if (strcmp (o->name, "skip") == 0)
*skip = 1;
- else if (strcmp (o->name, "nested_ptr") == 0)
- *nested_ptr = ((const struct nested_ptr_data *) o->info)->type;
+ else if (strcmp (o->name, "nested_ptr") == 0
+ && o->kind == OPTION_NESTED)
+ *nested_ptr = ((const struct nested_ptr_data *) o->info.nested)->type;
}
-/* Set the gc_used field of T to LEVEL, and handle the types it references. */
+
+/* Set the gc_used field of T to LEVEL, and handle the types it references.
+
+ If ALLOWED_UNDEFINED_TYPES is true, types of kind TYPE_UNDEFINED
+ are set to GC_UNUSED. Otherwise, an error is emitted for
+ TYPE_UNDEFINED types. This is used to support user-defined
+ template types with non-type arguments.
+
+ For instance, when we parse a template type with enum arguments
+ (e.g. MyType<AnotherType, EnumValue>), the parser created two
+ artificial fields for 'MyType', one for 'AnotherType', the other
+ one for 'EnumValue'.
+
+ At the time that we parse this type we don't know that 'EnumValue'
+ is really an enum value, so the parser creates a TYPE_UNDEFINED
+ type for it. Since 'EnumValue' is never resolved to a known
+ structure, it will stay with TYPE_UNDEFINED.
+
+ Since 'MyType' is a TYPE_USER_STRUCT, we can simply ignore
+ 'EnumValue'. Generating marking code for it would cause
+ compilation failures since the marking routines assumes that
+ 'EnumValue' is a type. */
static void
-set_gc_used_type (type_p t, enum gc_used_enum level, type_p param[NUM_PARAM])
+set_gc_used_type (type_p t, enum gc_used_enum level,
+ bool allow_undefined_types)
{
if (t->gc_used >= level)
return;
{
case TYPE_STRUCT:
case TYPE_UNION:
+ case TYPE_USER_STRUCT:
{
pair_p f;
int dummy;
type_p dummy2;
+ bool allow_undefined_field_types = (t->kind == TYPE_USER_STRUCT);
- process_gc_options (t->u.s.opt, level, &dummy, &dummy, &dummy, &dummy,
+ process_gc_options (t->u.s.opt, level, &dummy, &dummy, &dummy,
&dummy2);
- for (f = t->u.s.fields; f; f = f->next)
+ if (t->u.s.base_class)
+ set_gc_used_type (t->u.s.base_class, level, allow_undefined_types);
+ /* Anything pointing to a base class might actually be pointing
+ to a subclass. */
+ for (type_p subclass = t->u.s.first_subclass; subclass;
+ subclass = subclass->u.s.next_sibling_class)
+ set_gc_used_type (subclass, level, allow_undefined_types);
+
+ FOR_ALL_INHERITED_FIELDS(t, f)
{
int maybe_undef = 0;
- int pass_param = 0;
int length = 0;
int skip = 0;
type_p nested_ptr = NULL;
- process_gc_options (f->opt, level, &maybe_undef, &pass_param,
- &length, &skip, &nested_ptr);
+ process_gc_options (f->opt, level, &maybe_undef, &length, &skip,
+ &nested_ptr);
if (nested_ptr && f->type->kind == TYPE_POINTER)
- set_gc_used_type (nested_ptr, GC_POINTED_TO,
- pass_param ? param : NULL);
+ set_gc_used_type (nested_ptr, GC_POINTED_TO);
else if (length && f->type->kind == TYPE_POINTER)
- set_gc_used_type (f->type->u.p, GC_USED, NULL);
+ set_gc_used_type (f->type->u.p, GC_USED);
else if (maybe_undef && f->type->kind == TYPE_POINTER)
- set_gc_used_type (f->type->u.p, GC_MAYBE_POINTED_TO, NULL);
- else if (pass_param && f->type->kind == TYPE_POINTER && param)
- set_gc_used_type (find_param_structure (f->type->u.p, param),
- GC_POINTED_TO, NULL);
+ set_gc_used_type (f->type->u.p, GC_MAYBE_POINTED_TO);
else if (skip)
; /* target type is not used through this field */
else
- set_gc_used_type (f->type, GC_USED, pass_param ? param : NULL);
+ set_gc_used_type (f->type, GC_USED, allow_undefined_field_types);
}
break;
}
+ case TYPE_UNDEFINED:
+ if (level > GC_UNUSED)
+ {
+ if (!allow_undefined_types)
+ error_at_line (&t->u.s.line, "undefined type `%s'", t->u.s.tag);
+ t->gc_used = GC_UNUSED;
+ }
+ break;
+
case TYPE_POINTER:
- set_gc_used_type (t->u.p, GC_POINTED_TO, NULL);
+ set_gc_used_type (t->u.p, GC_POINTED_TO);
break;
case TYPE_ARRAY:
- set_gc_used_type (t->u.a.p, GC_USED, param);
+ set_gc_used_type (t->u.a.p, GC_USED);
break;
case TYPE_LANG_STRUCT:
for (t = t->u.s.lang_struct; t; t = t->next)
- set_gc_used_type (t, level, param);
- break;
-
- case TYPE_PARAM_STRUCT:
- {
- int i;
- for (i = 0; i < NUM_PARAM; i++)
- if (t->u.param_struct.param[i] != 0)
- set_gc_used_type (t->u.param_struct.param[i], GC_USED, NULL);
- }
- if (t->u.param_struct.stru->gc_used == GC_POINTED_TO)
- level = GC_POINTED_TO;
- else
- level = GC_USED;
- t->u.param_struct.stru->gc_used = GC_UNUSED;
- set_gc_used_type (t->u.param_struct.stru, level,
- t->u.param_struct.param);
+ set_gc_used_type (t, level);
break;
default:
pair_p p;
for (p = variables; p; p = p->next)
{
- set_gc_used_type (p->type, GC_USED, NULL);
+ set_gc_used_type (p->type, GC_USED);
nbvars++;
};
if (verbosity_level >= 2)
create_file (const char *name, const char *oname)
{
static const char *const hdr[] = {
- " Copyright (C) 2004, 2007, 2009 Free Software Foundation, Inc.\n",
+ " Copyright (C) 2004-2015 Free Software Foundation, Inc.\n",
"\n",
"This file is part of GCC.\n",
"\n",
{
/* The order of files here matters very much. */
static const char *const ifiles[] = {
- "config.h", "system.h", "coretypes.h", "tm.h",
+ "config.h", "system.h", "coretypes.h", "tm.h", "insn-codes.h",
"hashtab.h", "splay-tree.h", "obstack.h", "bitmap.h", "input.h",
- "tree.h", "rtl.h", "function.h", "insn-config.h", "expr.h",
- "hard-reg-set.h", "basic-block.h", "cselib.h", "insn-addr.h",
- "optabs.h", "libfuncs.h", "debug.h", "ggc.h", "cgraph.h",
- "tree-flow.h", "reload.h", "cpp-id-data.h", "tree-chrec.h",
- "cfglayout.h", "except.h", "output.h", "gimple.h", "cfgloop.h",
- "target.h", "ipa-prop.h", "lto-streamer.h", "target-globals.h", NULL
+ "hash-set.h", "machmode.h", "vec.h", "double-int.h", "input.h",
+ "alias.h", "symtab.h", "options.h",
+ "wide-int.h", "inchash.h",
+ "tree.h", "fold-const.h", "rtl.h",
+ "machmode.h", "tm.h", "hard-reg-set.h", "input.h", "predict.h",
+ "function.h", "insn-config.h", "flags.h", "statistics.h",
+ "real.h", "fixed-value.h", "tree.h", "expmed.h", "dojump.h",
+ "explow.h", "calls.h", "emit-rtl.h", "varasm.h", "stmt.h",
+ "expr.h", "alloc-pool.h",
+ "basic-block.h", "cselib.h", "insn-addr.h",
+ "optabs.h", "libfuncs.h", "debug.h", "ggc.h",
+ "ggc.h", "dominance.h", "cfg.h", "basic-block.h",
+ "tree-ssa-alias.h", "internal-fn.h", "gimple-fold.h", "tree-eh.h",
+ "gimple-expr.h", "is-a.h",
+ "gimple.h", "gimple-iterator.h", "gimple-ssa.h", "tree-cfg.h",
+ "tree-phinodes.h", "ssa-iterators.h", "stringpool.h", "tree-ssanames.h",
+ "tree-ssa-loop.h", "tree-ssa-loop-ivopts.h", "tree-ssa-loop-manip.h",
+ "tree-ssa-loop-niter.h", "tree-into-ssa.h", "tree-dfa.h",
+ "tree-ssa.h", "reload.h", "cpp-id-data.h", "tree-chrec.h",
+ "except.h", "output.h", "cfgloop.h", "target.h", "lto-streamer.h",
+ "target-globals.h", "ipa-ref.h", "cgraph.h", "symbol-summary.h",
+ "ipa-prop.h", "ipa-inline.h", "dwarf2out.h", "omp-low.h", NULL
};
const char *const *ifp;
outf_p gtype_desc_c;
/* Make sure we handle "cfun" specially. */
oprintf (gtype_desc_c, "\n/* See definition in function.h. */\n");
oprintf (gtype_desc_c, "#undef cfun\n");
+
+ oprintf (gtype_desc_c,
+ "\n"
+ "/* Types with a \"gcc::\" namespace have it stripped\n"
+ " during gengtype parsing. Provide a \"using\" directive\n"
+ " to ensure that the fully-qualified types are found. */\n"
+ "using namespace gcc;\n");
}
}
static const char *
get_file_realbasename (const input_file *inpf)
{
- const char *f = get_input_file_name (inpf);
- const char *lastslash = strrchr (f, '/');
-
- return (lastslash != NULL) ? lastslash + 1 : f;
+ return lbasename (get_input_file_name (inpf));
}
/* For INPF a filename, return the relative path to INPF from
matters, so change with extreme care! */
struct file_rule_st files_rules[] = {
+ /* The general rule assumes that files in subdirectories belong to a
+ particular front-end, and files not in subdirectories are shared.
+ The following rules deal with exceptions - files that are in
+ subdirectories and yet are shared, and files that are top-level,
+ but are not shared. */
+
/* the c-family/ source directory is special. */
{ DIR_PREFIX_REGEX "c-family/([[:alnum:]_-]*)\\.c$",
REG_EXTENDED, NULL_REGEX,
REG_EXTENDED, NULL_REGEX,
"gt-c-family-$3.h", "c-family/$3.h", NULL_FRULACT},
- /* Both c-lang.h & c-tree.h gives gt-c-decl.h for c-decl.c ! */
- { DIR_PREFIX_REGEX "c-lang\\.h$",
- REG_EXTENDED, NULL_REGEX, "gt-c-decl.h", "c-decl.c", NULL_FRULACT},
+ /* Both c-lang.h & c-tree.h gives gt-c-c-decl.h for c-decl.c ! */
+ { DIR_PREFIX_REGEX "c/c-lang\\.h$",
+ REG_EXTENDED, NULL_REGEX, "gt-c-c-decl.h", "c/c-decl.c", NULL_FRULACT},
- { DIR_PREFIX_REGEX "c-tree\\.h$",
- REG_EXTENDED, NULL_REGEX, "gt-c-decl.h", "c-decl.c", NULL_FRULACT},
+ { DIR_PREFIX_REGEX "c/c-tree\\.h$",
+ REG_EXTENDED, NULL_REGEX, "gt-c-c-decl.h", "c/c-decl.c", NULL_FRULACT},
/* cp/cp-tree.h gives gt-cp-tree.h for cp/tree.c ! */
{ DIR_PREFIX_REGEX "cp/cp-tree\\.h$",
REG_EXTENDED, NULL_REGEX,
"gt-cp-name-lookup.h", "cp/name-lookup.c", NULL_FRULACT },
- /* objc/objc-act.h fives gt-objc-objc-act.h for objc/objc-act.c ! */
+ /* cp/parser.h gives gt-cp-parser.h for cp/parser.c ! */
+ { DIR_PREFIX_REGEX "cp/parser\\.h$",
+ REG_EXTENDED, NULL_REGEX,
+ "gt-cp-parser.h", "cp/parser.c", NULL_FRULACT },
+
+ /* objc/objc-act.h gives gt-objc-objc-act.h for objc/objc-act.c ! */
{ DIR_PREFIX_REGEX "objc/objc-act\\.h$",
REG_EXTENDED, NULL_REGEX,
"gt-objc-objc-act.h", "objc/objc-act.c", NULL_FRULACT },
- /* General cases. For header *.h and source *.c files, we need
- * special actions to handle the language. */
+ /* objc/objc-map.h gives gt-objc-objc-map.h for objc/objc-map.c ! */
+ { DIR_PREFIX_REGEX "objc/objc-map\\.h$",
+ REG_EXTENDED, NULL_REGEX,
+ "gt-objc-objc-map.h", "objc/objc-map.c", NULL_FRULACT },
+
+ /* General cases. For header *.h and source *.c or *.cc files, we
+ * need special actions to handle the language. */
/* Source *.c files are using get_file_gtfilename to compute their
output_name and get_file_basename to compute their for_name
- thru the source_dot_c_frul action. */
+ through the source_dot_c_frul action. */
{ DIR_PREFIX_REGEX "([[:alnum:]_-]*)\\.c$",
REG_EXTENDED, NULL_REGEX, "gt-$3.h", "$3.c", source_dot_c_frul},
+
+ /* Source *.cc files are using get_file_gtfilename to compute their
+ output_name and get_file_basename to compute their for_name
+ through the source_dot_c_frul action. */
+ { DIR_PREFIX_REGEX "([[:alnum:]_-]*)\\.cc$",
+ REG_EXTENDED, NULL_REGEX, "gt-$3.h", "$3.cc", source_dot_c_frul},
+
/* Common header files get "gtype-desc.c" as their output_name,
* while language specific header files are handled specially. So
* we need the header_dot_h_frul action. */
"gtype-desc.c" for common headers and corresponding output
files for language-specific header files. */
static outf_p
-header_dot_h_frul (input_file* inpf, char**poutname, char**pforname)
+header_dot_h_frul (input_file* inpf, char**poutname,
+ char**pforname ATTRIBUTE_UNUSED)
{
const char *basename = 0;
int lang_index = 0;
- const char *inpname = get_input_file_name (inpf);
DBGPRINTF ("inpf %p inpname %s outname %s forname %s",
- (void*) inpf, inpname, *poutname, *pforname);
+ (void*) inpf, get_input_file_name (inpf),
+ *poutname, *pforname);
basename = get_file_basename (inpf);
lang_index = get_prefix_langdir_index (basename);
DBGPRINTF ("basename %s lang_index %d", basename, lang_index);
get_output_file_with_visibility will find its outf_p. */
free (*poutname);
*poutname = xstrdup ("gtype-desc.c");
- DBGPRINTF ("special 'gtype-desc.c' for inpname %s", inpname);
+ DBGPRINTF ("special 'gtype-desc.c' for inpname %s",
+ get_input_file_name (inpf));
return NULL;
}
}
{
char *newbasename = CONST_CAST (char*, get_file_basename (inpf));
char *newoutname = CONST_CAST (char*, get_file_gtfilename (inpf));
- const char *inpname = get_input_file_name (inpf);
DBGPRINTF ("inpf %p inpname %s original outname %s forname %s",
- (void*) inpf, inpname, *poutname, *pforname);
+ (void*) inpf, get_input_file_name (inpf),
+ *poutname, *pforname);
DBGPRINTF ("newoutname %s", newoutname);
DBGPRINTF ("newbasename %s", newbasename);
free (*poutname);
else
{
/* This can happen only when files_rules is buggy! */
- gcc_unreachable();
+ gcc_unreachable ();
}
/* Always skip the character after the dollar. */
pt++;
obstack_1grow (&str_obstack, '\0');
rawstr = XOBFINISH (&str_obstack, char *);
str = xstrdup (rawstr);
- obstack_free (&str_obstack, rawstr);
+ obstack_free (&str_obstack, NULL);
DBGPRINTF ("matched replacement %s", str);
rawstr = NULL;
return str;
/* An output file, suitable for definitions, that can see declarations
made in INPF and is linked into every language that uses INPF.
- Since the the result is cached inside INPF, that argument cannot be
+ Since the result is cached inside INPF, that argument cannot be
declared constant, but is "almost" constant. */
outf_p
/* Try each rule in sequence in files_rules until one is triggered. */
{
int rulix = 0;
- DBGPRINTF ("passing input file @ %p named %s thru the files_rules",
+ DBGPRINTF ("passing input file @ %p named %s through the files_rules",
(void*) inpf, inpfname);
for (; files_rules[rulix].frul_srcexpr != NULL; rulix++)
}
if (!output_name || !for_name)
{
- /* This is impossible, and could only happen if the files_rules is
- incomplete or buggy. */
- gcc_unreachable ();
+ /* This should not be possible, and could only happen if the
+ files_rules is incomplete or buggy. */
+ fatal ("failed to compute output name for %s", inpfname);
}
/* Look through to see if we've ever seen this output filename
before. If found, cache the result in inpf. */
for (r = output_files; r; r = r->next)
- if (strcmp (r->name, output_name) == 0)
+ if (filename_cmp (r->name, output_name) == 0)
{
inpf->inpoutf = r;
DBGPRINTF ("found r @ %p for output_name %s for_name %s", (void*)r,
break;
}
}
+ if (equal && EOF != fgetc (newfile))
+ equal = false;
fclose (newfile);
return equal;
}
for (of = output_files; of; of = of->next)
{
-
if (!is_file_equal (of))
{
FILE *newfile = NULL;
const char *reorder_note_routine;
const char *comment;
int skip_hooks; /* skip hook generation if non zero */
+ enum write_types_kinds kind;
};
static void output_escaped_param (struct walk_type_data *d,
const char *, const char *);
static void output_mangled_typename (outf_p, const_type_p);
static void walk_type (type_p t, struct walk_type_data *d);
-static void write_func_for_structure (type_p orig_s, type_p s, type_p *param,
+static void write_func_for_structure (type_p orig_s, type_p s,
const struct write_types_data *wtd);
static void write_types_process_field
(type_p f, const struct walk_type_data *d);
static void write_types (outf_p output_header,
type_p structures,
- type_p param_structs,
const struct write_types_data *wtd);
static void write_types_local_process_field
(type_p f, const struct walk_type_data *d);
-static void write_local_func_for_structure
- (const_type_p orig_s, type_p s, type_p *param);
+static void write_local_func_for_structure (const_type_p orig_s, type_p s);
static void write_local (outf_p output_header,
- type_p structures, type_p param_structs);
-static void write_enum_defn (type_p structures, type_p param_structs);
+ type_p structures);
static int contains_scalar_p (type_p t);
static void put_mangled_filename (outf_p, const input_file *);
static void finish_root_table (struct flist *flp, const char *pfx,
const char *tname, const char *lastname,
const char *name);
static void write_root (outf_p, pair_p, type_p, const char *, int,
- struct fileloc *, const char *, bool);
+ struct fileloc *, bool);
static void write_array (outf_p f, pair_p v,
const struct write_types_data *wtd);
static void write_roots (pair_p, bool);
int counter;
const struct fileloc *line;
lang_bitmap bitmap;
- type_p *param;
int used_length;
type_p orig_s;
const char *reorder_fn;
bool needs_cast_p;
bool fn_wants_lvalue;
+ bool in_record_p;
+ int loopcounter;
+ bool in_ptr_field;
+ bool have_this_obj;
};
+
+/* Given a string TYPE_NAME, representing a C++ typename, return a valid
+ pre-processor identifier to use in a #define directive. This replaces
+ special characters used in C++ identifiers like '>', '<' and ':' with
+ '_'.
+
+ If no C++ special characters are found in TYPE_NAME, return
+ TYPE_NAME. Otherwise, return a copy of TYPE_NAME with the special
+ characters replaced with '_'. In this case, the caller is
+ responsible for freeing the allocated string. */
+
+static const char *
+filter_type_name (const char *type_name)
+{
+ if (strchr (type_name, '<') || strchr (type_name, ':'))
+ {
+ size_t i;
+ char *s = xstrdup (type_name);
+ for (i = 0; i < strlen (s); i++)
+ if (s[i] == '<' || s[i] == '>' || s[i] == ':' || s[i] == ','
+ || s[i] == '*')
+ s[i] = '_';
+ return s;
+ }
+ else
+ return type_name;
+}
+
+
/* Print a mangled name representing T to OF. */
static void
else
switch (t->kind)
{
+ case TYPE_NONE:
+ case TYPE_UNDEFINED:
+ gcc_unreachable ();
+ break;
case TYPE_POINTER:
oprintf (of, "P");
output_mangled_typename (of, t->u.p);
case TYPE_STRUCT:
case TYPE_UNION:
case TYPE_LANG_STRUCT:
- oprintf (of, "%lu%s", (unsigned long) strlen (t->u.s.tag),
- t->u.s.tag);
- break;
- case TYPE_PARAM_STRUCT:
+ case TYPE_USER_STRUCT:
{
- int i;
- for (i = 0; i < NUM_PARAM; i++)
- if (t->u.param_struct.param[i] != NULL)
- output_mangled_typename (of, t->u.param_struct.param[i]);
- output_mangled_typename (of, t->u.param_struct.stru);
+ /* For references to classes within an inheritance hierarchy,
+ only ever reference the ultimate base class, since only
+ it will have gt_ functions. */
+ t = get_ultimate_base_class (t);
+ const char *id_for_tag = filter_type_name (t->u.s.tag);
+ oprintf (of, "%lu%s", (unsigned long) strlen (id_for_tag),
+ id_for_tag);
+ if (id_for_tag != t->u.s.tag)
+ free (CONST_CAST (char *, id_for_tag));
}
break;
case TYPE_ARRAY:
}
}
+const char *
+get_string_option (options_p opt, const char *key)
+{
+ for (; opt; opt = opt->next)
+ if (strcmp (opt->name, key) == 0)
+ return opt->info.string;
+ return NULL;
+}
+
+/* Machinery for avoiding duplicate tags within switch statements. */
+struct seen_tag
+{
+ const char *tag;
+ struct seen_tag *next;
+};
+
+int
+already_seen_tag (struct seen_tag *seen_tags, const char *tag)
+{
+ /* Linear search, so O(n^2), but n is currently small. */
+ while (seen_tags)
+ {
+ if (!strcmp (seen_tags->tag, tag))
+ return 1;
+ seen_tags = seen_tags->next;
+ }
+ /* Not yet seen this tag. */
+ return 0;
+}
+
+void
+mark_tag_as_seen (struct seen_tag **seen_tags, const char *tag)
+{
+ /* Add to front of linked list. */
+ struct seen_tag *new_node = XCNEW (struct seen_tag);
+ new_node->tag = tag;
+ new_node->next = *seen_tags;
+ *seen_tags = new_node;
+}
+
+static void
+walk_subclasses (type_p base, struct walk_type_data *d,
+ struct seen_tag **seen_tags)
+{
+ for (type_p sub = base->u.s.first_subclass; sub != NULL;
+ sub = sub->u.s.next_sibling_class)
+ {
+ const char *type_tag = get_string_option (sub->u.s.opt, "tag");
+ if (type_tag && !already_seen_tag (*seen_tags, type_tag))
+ {
+ mark_tag_as_seen (seen_tags, type_tag);
+ oprintf (d->of, "%*scase %s:\n", d->indent, "", type_tag);
+ d->indent += 2;
+ oprintf (d->of, "%*s{\n", d->indent, "");
+ d->indent += 2;
+ oprintf (d->of, "%*s%s *sub = static_cast <%s *> (x);\n",
+ d->indent, "", sub->u.s.tag, sub->u.s.tag);
+ const char *old_val = d->val;
+ d->val = "(*sub)";
+ walk_type (sub, d);
+ d->val = old_val;
+ d->indent -= 2;
+ oprintf (d->of, "%*s}\n", d->indent, "");
+ oprintf (d->of, "%*sbreak;\n", d->indent, "");
+ d->indent -= 2;
+ }
+ walk_subclasses (sub, d, seen_tags);
+ }
+}
+
/* Call D->PROCESS_FIELD for every field (or subfield) of D->VAL,
which is of type T. Write code to D->OF to constrain execution (at
the point that D->PROCESS_FIELD is called) to the appropriate
containing the current object, D->OPT is a list of options to
apply, D->INDENT is the current indentation level, D->LINE is used
to print error messages, D->BITMAP indicates which languages to
- print the structure for, and D->PARAM is the current parameter
- (from an enclosing param_is option). */
+ print the structure for. */
static void
walk_type (type_p t, struct walk_type_data *d)
{
const char *length = NULL;
const char *desc = NULL;
+ const char *type_tag = NULL;
int maybe_undef_p = 0;
- int use_param_num = -1;
- int use_params_p = 0;
+ int atomic_p = 0;
options_p oo;
const struct nested_ptr_data *nested_ptr_d = NULL;
d->needs_cast_p = false;
for (oo = d->opt; oo; oo = oo->next)
- if (strcmp (oo->name, "length") == 0)
- length = oo->info;
+ if (strcmp (oo->name, "length") == 0 && oo->kind == OPTION_STRING)
+ length = oo->info.string;
else if (strcmp (oo->name, "maybe_undef") == 0)
maybe_undef_p = 1;
- else if (strncmp (oo->name, "use_param", 9) == 0
- && (oo->name[9] == '\0' || ISDIGIT (oo->name[9])))
- use_param_num = oo->name[9] == '\0' ? 0 : oo->name[9] - '0';
- else if (strcmp (oo->name, "use_params") == 0)
- use_params_p = 1;
- else if (strcmp (oo->name, "desc") == 0)
- desc = oo->info;
+ else if (strcmp (oo->name, "desc") == 0 && oo->kind == OPTION_STRING)
+ desc = oo->info.string;
else if (strcmp (oo->name, "mark_hook") == 0)
;
- else if (strcmp (oo->name, "nested_ptr") == 0)
- nested_ptr_d = (const struct nested_ptr_data *) oo->info;
+ else if (strcmp (oo->name, "nested_ptr") == 0
+ && oo->kind == OPTION_NESTED)
+ nested_ptr_d = (const struct nested_ptr_data *) oo->info.nested;
else if (strcmp (oo->name, "dot") == 0)
;
else if (strcmp (oo->name, "tag") == 0)
- ;
+ type_tag = oo->info.string;
else if (strcmp (oo->name, "special") == 0)
;
else if (strcmp (oo->name, "skip") == 0)
;
+ else if (strcmp (oo->name, "atomic") == 0)
+ atomic_p = 1;
else if (strcmp (oo->name, "default") == 0)
;
- else if (strcmp (oo->name, "param_is") == 0)
- ;
- else if (strncmp (oo->name, "param", 5) == 0
- && ISDIGIT (oo->name[5]) && strcmp (oo->name + 6, "_is") == 0)
- ;
else if (strcmp (oo->name, "chain_next") == 0)
;
else if (strcmp (oo->name, "chain_prev") == 0)
;
else if (strcmp (oo->name, "variable_size") == 0)
;
+ else if (strcmp (oo->name, "for_user") == 0)
+ ;
else
error_at_line (d->line, "unknown option `%s'\n", oo->name);
if (d->used_length)
length = NULL;
- if (use_params_p)
- {
- int pointer_p = t->kind == TYPE_POINTER;
-
- if (pointer_p)
- t = t->u.p;
- if (!UNION_OR_STRUCT_P (t))
- error_at_line (d->line, "`use_params' option on unimplemented type");
- else
- t = find_param_structure (t, d->param);
- if (pointer_p)
- t = create_pointer (t);
- }
-
- if (use_param_num != -1)
- {
- if (d->param != NULL && d->param[use_param_num] != NULL)
- {
- type_p nt = d->param[use_param_num];
-
- if (t->kind == TYPE_ARRAY)
- nt = create_array (nt, t->u.a.len);
- else if (length != NULL && t->kind == TYPE_POINTER)
- nt = create_pointer (nt);
- d->needs_cast_p = (t->kind != TYPE_POINTER
- && (nt->kind == TYPE_POINTER
- || nt->kind == TYPE_STRING));
- t = nt;
- }
- else
- error_at_line (d->line, "no parameter defined for `%s'", d->val);
- }
-
if (maybe_undef_p
- && (t->kind != TYPE_POINTER || !UNION_OR_STRUCT_P (t->u.p)))
+ && (t->kind != TYPE_POINTER || !union_or_struct_p (t->u.p)))
{
error_at_line (d->line,
"field `%s' has invalid option `maybe_undef_p'\n",
return;
}
- switch (t->kind)
+ if (atomic_p && (t->kind != TYPE_POINTER) && (t->kind != TYPE_STRING))
{
- case TYPE_SCALAR:
+ error_at_line (d->line, "field `%s' has invalid option `atomic'\n", d->val);
+ return;
+ }
+
+ switch (t->kind)
+ {
+ case TYPE_SCALAR:
case TYPE_STRING:
d->process_field (t, d);
break;
case TYPE_POINTER:
{
+ d->in_ptr_field = true;
if (maybe_undef_p && t->u.p->u.s.line.file == NULL)
{
oprintf (d->of, "%*sgcc_assert (!%s);\n", d->indent, "", d->val);
break;
}
+ /* If a pointer type is marked as "atomic", we process the
+ field itself, but we don't walk the data that they point to.
+
+ There are two main cases where we walk types: to mark
+ pointers that are reachable, and to relocate pointers when
+ writing a PCH file. In both cases, an atomic pointer is
+ itself marked or relocated, but the memory that it points
+ to is left untouched. In the case of PCH, that memory will
+ be read/written unchanged to the PCH file. */
+ if (atomic_p)
+ {
+ oprintf (d->of, "%*sif (%s != NULL) {\n", d->indent, "", d->val);
+ d->indent += 2;
+ d->process_field (t, d);
+ d->indent -= 2;
+ oprintf (d->of, "%*s}\n", d->indent, "");
+ break;
+ }
+
if (!length)
{
- if (!UNION_OR_STRUCT_P (t->u.p)
- && t->u.p->kind != TYPE_PARAM_STRUCT)
+ if (!union_or_struct_p (t->u.p))
{
error_at_line (d->line,
"field `%s' is pointer to unimplemented type",
{
const char *oldprevval2 = d->prev_val[2];
- if (!UNION_OR_STRUCT_P (nested_ptr_d->type))
+ if (!union_or_struct_p (nested_ptr_d->type))
{
error_at_line (d->line,
"field `%s' has invalid "
}
else
{
- int loopcounter = d->counter++;
+ int loopcounter = d->loopcounter;
const char *oldval = d->val;
const char *oldprevval3 = d->prev_val[3];
char *newval;
oprintf (d->of, "%*ssize_t i%d;\n", d->indent, "", loopcounter);
oprintf (d->of, "%*sfor (i%d = 0; i%d != (size_t)(", d->indent,
"", loopcounter, loopcounter);
- output_escaped_param (d, length, "length");
+ if (!d->in_record_p)
+ output_escaped_param (d, length, "length");
+ else
+ oprintf (d->of, "l%d", loopcounter);
+ if (d->have_this_obj)
+ /* Try to unswitch loops (see PR53880). */
+ oprintf (d->of, ") && ((void *)%s == this_obj", oldval);
oprintf (d->of, "); i%d++) {\n", loopcounter);
d->indent += 2;
d->val = newval = xasprintf ("%s[i%d]", oldval, loopcounter);
d->indent -= 2;
oprintf (d->of, "%*s}\n", d->indent, "");
}
+ d->in_ptr_field = false;
}
break;
case TYPE_ARRAY:
{
- int loopcounter = d->counter++;
+ int loopcounter;
const char *oldval = d->val;
char *newval;
if (t->u.a.p->kind == TYPE_SCALAR)
break;
+ if (length)
+ loopcounter = d->loopcounter;
+ else
+ loopcounter = d->counter++;
+
/* When walking an array, compute the length and store it in a
local variable before walking the array elements, instead of
recomputing the length expression each time through the loop.
oprintf (d->of, "%*s{\n", d->indent, "");
d->indent += 2;
oprintf (d->of, "%*ssize_t i%d;\n", d->indent, "", loopcounter);
- oprintf (d->of, "%*ssize_t l%d = (size_t)(",
- d->indent, "", loopcounter);
- if (length)
- output_escaped_param (d, length, "length");
- else
- oprintf (d->of, "%s", t->u.a.len);
- oprintf (d->of, ");\n");
+ if (!d->in_record_p || !length)
+ {
+ oprintf (d->of, "%*ssize_t l%d = (size_t)(",
+ d->indent, "", loopcounter);
+ if (length)
+ output_escaped_param (d, length, "length");
+ else
+ oprintf (d->of, "%s", t->u.a.len);
+ oprintf (d->of, ");\n");
+ }
oprintf (d->of, "%*sfor (i%d = 0; i%d != l%d; i%d++) {\n",
d->indent, "",
const char *oldval = d->val;
const char *oldprevval1 = d->prev_val[1];
const char *oldprevval2 = d->prev_val[2];
+ const char *struct_mark_hook = NULL;
const int union_p = t->kind == TYPE_UNION;
int seen_default_p = 0;
options_p o;
+ int lengths_seen = 0;
+ int endcounter;
+ bool any_length_seen = false;
if (!t->u.s.line.file)
error_at_line (d->line, "incomplete structure `%s'", t->u.s.tag);
/* Some things may also be defined in the structure's options. */
for (o = t->u.s.opt; o; o = o->next)
- if (!desc && strcmp (o->name, "desc") == 0)
- desc = o->info;
+ if (!desc && strcmp (o->name, "desc") == 0
+ && o->kind == OPTION_STRING)
+ desc = o->info.string;
+ else if (!struct_mark_hook && strcmp (o->name, "mark_hook") == 0
+ && o->kind == OPTION_STRING)
+ struct_mark_hook = o->info.string;
+
+ if (struct_mark_hook)
+ oprintf (d->of, "%*s%s (&%s);\n",
+ d->indent, "", struct_mark_hook, oldval);
d->prev_val[2] = oldval;
d->prev_val[1] = oldprevval2;
t->u.s.tag);
desc = "1";
}
- oprintf (d->of, "%*sswitch (", d->indent, "");
+ oprintf (d->of, "%*sswitch ((int) (", d->indent, "");
output_escaped_param (d, desc, "desc");
- oprintf (d->of, ")\n");
+ oprintf (d->of, "))\n");
d->indent += 2;
oprintf (d->of, "%*s{\n", d->indent, "");
}
- for (f = t->u.s.fields; f; f = f->next)
+ else if (desc)
+ {
+ /* We have a "desc" option on a struct, signifying the
+ base class within a GC-managed inheritance hierarchy.
+ The current code specialcases the base class, then walks
+ into subclasses, recursing into this routine to handle them.
+ This organization requires the base class to have a case in
+ the switch statement, and hence a tag value is mandatory
+ for the base class. This restriction could be removed, but
+ it would require some restructing of this code. */
+ if (!type_tag)
+ {
+ error_at_line (d->line,
+ "missing `tag' option for type `%s'",
+ t->u.s.tag);
+ }
+ oprintf (d->of, "%*sswitch ((int) (", d->indent, "");
+ output_escaped_param (d, desc, "desc");
+ oprintf (d->of, "))\n");
+ d->indent += 2;
+ oprintf (d->of, "%*s{\n", d->indent, "");
+ oprintf (d->of, "%*scase %s:\n", d->indent, "", type_tag);
+ d->indent += 2;
+ }
+
+ FOR_ALL_INHERITED_FIELDS (t, f)
+ {
+ options_p oo;
+ int skip_p = 0;
+ const char *fieldlength = NULL;
+
+ d->reorder_fn = NULL;
+ for (oo = f->opt; oo; oo = oo->next)
+ if (strcmp (oo->name, "skip") == 0)
+ skip_p = 1;
+ else if (strcmp (oo->name, "length") == 0
+ && oo->kind == OPTION_STRING)
+ fieldlength = oo->info.string;
+
+ if (skip_p)
+ continue;
+ if (fieldlength)
+ {
+ lengths_seen++;
+ d->counter++;
+ if (!union_p)
+ {
+ if (!any_length_seen)
+ {
+ oprintf (d->of, "%*s{\n", d->indent, "");
+ d->indent += 2;
+ }
+ any_length_seen = true;
+
+ oprintf (d->of, "%*ssize_t l%d = (size_t)(",
+ d->indent, "", d->counter - 1);
+ output_escaped_param (d, fieldlength, "length");
+ oprintf (d->of, ");\n");
+ }
+ }
+ }
+ endcounter = d->counter;
+
+ FOR_ALL_INHERITED_FIELDS (t, f)
{
options_p oo;
const char *dot = ".";
const char *tagid = NULL;
int skip_p = 0;
int default_p = 0;
- int use_param_p = 0;
+ const char *fieldlength = NULL;
char *newval;
d->reorder_fn = NULL;
for (oo = f->opt; oo; oo = oo->next)
- if (strcmp (oo->name, "dot") == 0)
- dot = oo->info;
- else if (strcmp (oo->name, "tag") == 0)
- tagid = oo->info;
+ if (strcmp (oo->name, "dot") == 0
+ && oo->kind == OPTION_STRING)
+ dot = oo->info.string;
+ else if (strcmp (oo->name, "tag") == 0
+ && oo->kind == OPTION_STRING)
+ tagid = oo->info.string;
else if (strcmp (oo->name, "skip") == 0)
skip_p = 1;
else if (strcmp (oo->name, "default") == 0)
default_p = 1;
- else if (strcmp (oo->name, "reorder") == 0)
- d->reorder_fn = oo->info;
- else if (strncmp (oo->name, "use_param", 9) == 0
- && (oo->name[9] == '\0' || ISDIGIT (oo->name[9])))
- use_param_p = 1;
+ else if (strcmp (oo->name, "reorder") == 0
+ && oo->kind == OPTION_STRING)
+ d->reorder_fn = oo->info.string;
+ else if (strcmp (oo->name, "length") == 0
+ && oo->kind == OPTION_STRING)
+ fieldlength = oo->info.string;
if (skip_p)
continue;
"field `%s' is missing `tag' or `default' option",
f->name);
+ if (fieldlength)
+ {
+ d->loopcounter = endcounter - lengths_seen--;
+ }
+
d->line = &f->line;
d->val = newval = xasprintf ("%s%s%s", oldval, dot, f->name);
d->opt = f->opt;
d->used_length = false;
+ d->in_record_p = !union_p;
- if (union_p && use_param_p && d->param == NULL)
- oprintf (d->of, "%*sgcc_unreachable ();\n", d->indent, "");
- else
- walk_type (f->type, d);
+ walk_type (f->type, d);
+
+ d->in_record_p = false;
free (newval);
oprintf (d->of, "%*sdefault:\n", d->indent, "");
oprintf (d->of, "%*s break;\n", d->indent, "");
}
+
+ if (desc && !union_p)
+ {
+ oprintf (d->of, "%*sbreak;\n", d->indent, "");
+ d->indent -= 2;
+ }
if (union_p)
{
oprintf (d->of, "%*s}\n", d->indent, "");
d->indent -= 2;
}
+ else if (desc)
+ {
+ /* Add cases to handle subclasses. */
+ struct seen_tag *tags = NULL;
+ walk_subclasses (t, d, &tags);
+
+ /* Ensure that if someone forgets a "tag" option that we don't
+ silent fail to traverse that subclass's fields. */
+ if (!seen_default_p)
+ {
+ oprintf (d->of, "%*s/* Unrecognized tag value. */\n",
+ d->indent, "");
+ oprintf (d->of, "%*sdefault: gcc_unreachable (); \n",
+ d->indent, "");
+ }
+
+ /* End of the switch statement */
+ oprintf (d->of, "%*s}\n", d->indent, "");
+ d->indent -= 2;
+ }
+ if (any_length_seen)
+ {
+ d->indent -= 2;
+ oprintf (d->of, "%*s}\n", d->indent, "");
+ }
}
break;
}
break;
- case TYPE_PARAM_STRUCT:
- {
- type_p *oldparam = d->param;
-
- d->param = t->u.param_struct.param;
- walk_type (t->u.param_struct.stru, d);
- d->param = oldparam;
- }
+ case TYPE_USER_STRUCT:
+ d->process_field (t, d);
break;
- default:
+ case TYPE_NONE:
+ case TYPE_UNDEFINED:
gcc_unreachable ();
}
}
switch (f->kind)
{
+ case TYPE_NONE:
+ case TYPE_UNDEFINED:
+ gcc_unreachable ();
case TYPE_POINTER:
oprintf (d->of, "%*s%s (%s%s", d->indent, "",
wtd->subfield_marker_routine, cast, d->val);
if (wtd->param_prefix)
{
- oprintf (d->of, ", %s", d->prev_val[3]);
+ if (f->u.p->kind == TYPE_SCALAR)
+ /* The current type is a pointer to a scalar (so not
+ considered like a pointer to instances of user defined
+ types) and we are seeing it; it means we must be even
+ more careful about the second argument of the
+ SUBFIELD_MARKER_ROUTINE call. That argument must
+ always be the instance of the type for which
+ write_func_for_structure was called - this really is
+ what the function SUBFIELD_MARKER_ROUTINE expects.
+ That is, it must be an instance of the ORIG_S type
+ parameter of write_func_for_structure. The convention
+ is that that argument must be "x" in that case (as set
+ by write_func_for_structure). The problem is, we can't
+ count on d->prev_val[3] to be always set to "x" in that
+ case. Sometimes walk_type can set it to something else
+ (to e.g cooperate with write_array when called from
+ write_roots). So let's set it to "x" here then. */
+ oprintf (d->of, ", x");
+ else
+ oprintf (d->of, ", %s", d->prev_val[3]);
if (d->orig_s)
{
oprintf (d->of, ", gt_%s_", wtd->param_prefix);
}
else
oprintf (d->of, ", gt_%sa_%s", wtd->param_prefix, d->prev_val[0]);
-
- if (f->u.p->kind == TYPE_PARAM_STRUCT
- && f->u.p->u.s.line.file != NULL)
- {
- oprintf (d->of, ", gt_e_");
- output_mangled_typename (d->of, f);
- }
- else if (UNION_OR_STRUCT_P (f) && f->u.p->u.s.line.file != NULL)
- {
- oprintf (d->of, ", gt_ggc_e_");
- output_mangled_typename (d->of, f);
- }
- else
- oprintf (d->of, ", gt_types_enum_last");
}
oprintf (d->of, ");\n");
if (d->reorder_fn && wtd->reorder_note_routine)
case TYPE_STRUCT:
case TYPE_UNION:
case TYPE_LANG_STRUCT:
- case TYPE_PARAM_STRUCT:
- oprintf (d->of, "%*sgt_%s_", d->indent, "", wtd->prefix);
- output_mangled_typename (d->of, f);
- oprintf (d->of, " (%s%s);\n", cast, d->val);
- if (d->reorder_fn && wtd->reorder_note_routine)
- oprintf (d->of, "%*s%s (%s%s, %s%s, %s);\n", d->indent, "",
- wtd->reorder_note_routine, cast, d->val, cast, d->val,
- d->reorder_fn);
+ case TYPE_USER_STRUCT:
+ if (f->kind == TYPE_USER_STRUCT && !d->in_ptr_field)
+ {
+ /* If F is a user-defined type and the field is not a
+ pointer to the type, then we should not generate the
+ standard pointer-marking code. All we need to do is call
+ the user-provided marking function to process the fields
+ of F. */
+ oprintf (d->of, "%*sgt_%sx (&(%s));\n", d->indent, "", wtd->prefix,
+ d->val);
+ }
+ else
+ {
+ oprintf (d->of, "%*sgt_%s_", d->indent, "", wtd->prefix);
+ output_mangled_typename (d->of, f);
+ oprintf (d->of, " (%s%s);\n", cast, d->val);
+ if (d->reorder_fn && wtd->reorder_note_routine)
+ oprintf (d->of, "%*s%s (%s%s, %s%s, %s);\n", d->indent, "",
+ wtd->reorder_note_routine, cast, d->val, cast, d->val,
+ d->reorder_fn);
+ }
break;
case TYPE_SCALAR:
break;
- default:
+ case TYPE_ARRAY:
gcc_unreachable ();
}
}
-/* A subroutine of write_func_for_structure. Write the enum tag for S. */
+/* Return an output file that is suitable for definitions which can
+ reference struct S */
+
+static outf_p
+get_output_file_for_structure (const_type_p s)
+{
+ const input_file *fn;
+
+ gcc_assert (union_or_struct_p (s));
+ fn = s->u.s.line.file;
+
+ /* The call to get_output_file_with_visibility may update fn by
+ caching its result inside, so we need the CONST_CAST. */
+ return get_output_file_with_visibility (CONST_CAST (input_file*, fn));
+}
+
+
+/* Returns the specifier keyword for a string or union type S, empty string
+ otherwise. */
+
+static const char *
+get_type_specifier (const type_p s)
+{
+ if (s->kind == TYPE_STRUCT)
+ return "struct ";
+ else if (s->kind == TYPE_LANG_STRUCT)
+ return get_type_specifier (s->u.s.lang_struct);
+ else if (s->kind == TYPE_UNION)
+ return "union ";
+ return "";
+}
+
+
+/* Emits a declaration for type TY (assumed to be a union or a
+ structure) on stream OUT. */
static void
-output_type_enum (outf_p of, type_p s)
+write_type_decl (outf_p out, type_p ty)
{
- if (s->kind == TYPE_PARAM_STRUCT && s->u.param_struct.line.file != NULL)
+ if (union_or_struct_p (ty))
+ oprintf (out, "%s%s", get_type_specifier (ty), ty->u.s.tag);
+ else if (ty->kind == TYPE_SCALAR)
+ {
+ if (ty->u.scalar_is_char)
+ oprintf (out, "const char");
+ else
+ oprintf (out, "void");
+ }
+ else if (ty->kind == TYPE_POINTER)
+ {
+ write_type_decl (out, ty->u.p);
+ oprintf (out, " *");
+ }
+ else if (ty->kind == TYPE_ARRAY)
{
- oprintf (of, ", gt_e_");
- output_mangled_typename (of, s);
+ write_type_decl (out, ty->u.a.p);
+ oprintf (out, " *");
}
- else if (UNION_OR_STRUCT_P (s) && s->u.s.line.file != NULL)
+ else if (ty->kind == TYPE_STRING)
{
- oprintf (of, ", gt_ggc_e_");
- output_mangled_typename (of, s);
+ oprintf (out, "const char *");
}
else
- oprintf (of, ", gt_types_enum_last");
+ gcc_unreachable ();
}
-/* Return an output file that is suitable for definitions which can
- reference struct S */
-static outf_p
-get_output_file_for_structure (const_type_p s, type_p *param)
+/* Write on OF the name of the marker function for structure S. PREFIX
+ is the prefix to use (to distinguish ggc from pch markers). */
+
+static void
+write_marker_function_name (outf_p of, type_p s, const char *prefix)
{
- const input_file *fn;
- int i;
+ if (union_or_struct_p (s))
+ {
+ const char *id_for_tag = filter_type_name (s->u.s.tag);
+ oprintf (of, "gt_%sx_%s", prefix, id_for_tag);
+ if (id_for_tag != s->u.s.tag)
+ free (CONST_CAST (char *, id_for_tag));
+ }
+ else
+ gcc_unreachable ();
+}
- gcc_assert (UNION_OR_STRUCT_P (s));
- fn = s->u.s.line.file;
+/* Write on OF a user-callable routine to act as an entry point for
+ the marking routine for S, generated by write_func_for_structure.
+ WTD distinguishes between ggc and pch markers. */
- /* This is a hack, and not the good kind either. */
- for (i = NUM_PARAM - 1; i >= 0; i--)
- if (param && param[i] && param[i]->kind == TYPE_POINTER
- && UNION_OR_STRUCT_P (param[i]->u.p))
- fn = param[i]->u.p->u.s.line.file;
+static void
+write_user_func_for_structure_ptr (outf_p of, type_p s, const write_types_data *wtd)
+{
+ gcc_assert (union_or_struct_p (s));
- /* The call to get_output_file_with_visibility may update fn by
- caching its result inside, so we need the CONST_CAST. */
- return get_output_file_with_visibility (CONST_CAST (input_file*, fn));
+ type_p alias_of = NULL;
+ for (options_p opt = s->u.s.opt; opt; opt = opt->next)
+ if (strcmp (opt->name, "ptr_alias") == 0)
+ {
+ /* ALIAS_OF is set if ORIG_S is marked "ptr_alias". This means that
+ we do not generate marking code for ORIG_S here. Instead, a
+ forwarder #define in gtype-desc.h will cause every call to its
+ marker to call the target of this alias.
+
+ However, we still want to create a user entry code for the
+ aliased type. So, if ALIAS_OF is set, we only generate the
+ user-callable marker function. */
+ alias_of = opt->info.type;
+ break;
+ }
+
+ DBGPRINTF ("write_user_func_for_structure_ptr: %s %s", s->u.s.tag,
+ wtd->prefix);
+
+ /* Only write the function once. */
+ if (s->u.s.wrote_user_func_for_ptr[wtd->kind])
+ return;
+ s->u.s.wrote_user_func_for_ptr[wtd->kind] = true;
+
+ oprintf (of, "\nvoid\n");
+ oprintf (of, "gt_%sx (", wtd->prefix);
+ write_type_decl (of, s);
+ oprintf (of, " *& x)\n");
+ oprintf (of, "{\n");
+ oprintf (of, " if (x)\n ");
+ write_marker_function_name (of,
+ alias_of ? alias_of : get_ultimate_base_class (s),
+ wtd->prefix);
+ oprintf (of, " ((void *) x);\n");
+ oprintf (of, "}\n");
}
-/* For S, a structure that's part of ORIG_S, and using parameters
- PARAM, write out a routine that:
+
+/* Write a function to mark all the fields of type S on OF. PREFIX
+ and D are as in write_user_marking_functions. */
+
+static void
+write_user_func_for_structure_body (type_p s, const char *prefix,
+ struct walk_type_data *d)
+{
+ oprintf (d->of, "\nvoid\n");
+ oprintf (d->of, "gt_%sx (", prefix);
+ write_type_decl (d->of, s);
+ oprintf (d->of, "& x_r ATTRIBUTE_UNUSED)\n");
+ oprintf (d->of, "{\n");
+ oprintf (d->of, " ");
+ write_type_decl (d->of, s);
+ oprintf (d->of, " * ATTRIBUTE_UNUSED x = &x_r;\n");
+ d->val = "(*x)";
+ d->indent = 2;
+ walk_type (s, d);
+ oprintf (d->of, "}\n");
+}
+
+/* Emit the user-callable functions needed to mark all the types used
+ by the user structure S. PREFIX is the prefix to use to
+ distinguish ggc and pch markers. D contains data needed to pass to
+ walk_type when traversing the fields of a type.
+
+ For every type T referenced by S, two routines are generated: one
+ that takes 'T *', marks the pointer and calls the second routine,
+ which just marks the fields of T. */
+
+static void
+write_user_marking_functions (type_p s,
+ const write_types_data *w,
+ struct walk_type_data *d)
+{
+ gcc_assert (s->kind == TYPE_USER_STRUCT);
+
+ for (pair_p fld = s->u.s.fields; fld; fld = fld->next)
+ {
+ type_p fld_type = fld->type;
+ if (fld_type->kind == TYPE_POINTER)
+ {
+ type_p pointed_to_type = fld_type->u.p;
+ if (union_or_struct_p (pointed_to_type))
+ write_user_func_for_structure_ptr (d->of, pointed_to_type, w);
+ }
+ else if (union_or_struct_p (fld_type))
+ write_user_func_for_structure_body (fld_type, w->prefix, d);
+ }
+}
+
+
+/* For S, a structure that's part of ORIG_S write out a routine that:
- Takes a parameter, a void * but actually of type *S
- If SEEN_ROUTINE returns nonzero, calls write_types_process_field on each
field of S or its substructures and (in some cases) things
- that are pointed to by S.
-*/
+ that are pointed to by S. */
static void
-write_func_for_structure (type_p orig_s, type_p s, type_p *param,
+write_func_for_structure (type_p orig_s, type_p s,
const struct write_types_data *wtd)
{
const char *chain_next = NULL;
options_p opt;
struct walk_type_data d;
+ if (s->u.s.base_class)
+ {
+ /* Verify that the base class has a "desc", since otherwise
+ the traversal hooks there won't attempt to visit fields of
+ subclasses such as this one. */
+ const_type_p ubc = get_ultimate_base_class (s);
+ if ((!opts_have (ubc->u.s.opt, "user")
+ && !opts_have (ubc->u.s.opt, "desc")))
+ error_at_line (&s->u.s.line,
+ ("'%s' is a subclass of non-GTY(user) GTY class '%s'"
+ ", but '%s' lacks a discriminator 'desc' option"),
+ s->u.s.tag, ubc->u.s.tag, ubc->u.s.tag);
+
+ /* Don't write fns for subclasses, only for the ultimate base class
+ within an inheritance hierarchy. */
+ return;
+ }
+
memset (&d, 0, sizeof (d));
- d.of = get_output_file_for_structure (s, param);
+ d.of = get_output_file_for_structure (s);
+ bool for_user = false;
for (opt = s->u.s.opt; opt; opt = opt->next)
- if (strcmp (opt->name, "chain_next") == 0)
- chain_next = opt->info;
- else if (strcmp (opt->name, "chain_prev") == 0)
- chain_prev = opt->info;
- else if (strcmp (opt->name, "chain_circular") == 0)
- chain_circular = opt->info;
- else if (strcmp (opt->name, "mark_hook") == 0)
- mark_hook_name = opt->info;
-
+ if (strcmp (opt->name, "chain_next") == 0
+ && opt->kind == OPTION_STRING)
+ chain_next = opt->info.string;
+ else if (strcmp (opt->name, "chain_prev") == 0
+ && opt->kind == OPTION_STRING)
+ chain_prev = opt->info.string;
+ else if (strcmp (opt->name, "chain_circular") == 0
+ && opt->kind == OPTION_STRING)
+ chain_circular = opt->info.string;
+ else if (strcmp (opt->name, "mark_hook") == 0
+ && opt->kind == OPTION_STRING)
+ mark_hook_name = opt->info.string;
+ else if (strcmp (opt->name, "for_user") == 0)
+ for_user = true;
if (chain_prev != NULL && chain_next == NULL)
error_at_line (&s->u.s.line, "chain_prev without chain_next");
if (chain_circular != NULL && chain_next != NULL)
d.opt = s->u.s.opt;
d.line = &s->u.s.line;
d.bitmap = s->u.s.bitmap;
- d.param = param;
d.prev_val[0] = "*x";
d.prev_val[1] = "not valid postage"; /* Guarantee an error. */
d.prev_val[3] = "x";
d.val = "(*x)";
+ d.have_this_obj = false;
oprintf (d.of, "\n");
oprintf (d.of, "void\n");
- if (param == NULL)
- oprintf (d.of, "gt_%sx_%s", wtd->prefix, orig_s->u.s.tag);
- else
- {
- oprintf (d.of, "gt_%s_", wtd->prefix);
- output_mangled_typename (d.of, orig_s);
- }
+ write_marker_function_name (d.of, orig_s, wtd->prefix);
oprintf (d.of, " (void *x_p)\n");
- oprintf (d.of, "{\n");
- oprintf (d.of, " %s %s * %sx = (%s %s *)x_p;\n",
- s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag,
- chain_next == NULL ? "const " : "",
- s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag);
+ oprintf (d.of, "{\n ");
+ write_type_decl (d.of, s);
+ oprintf (d.of, " * %sx = (", chain_next == NULL ? "const " : "");
+ write_type_decl (d.of, s);
+ oprintf (d.of, " *)x_p;\n");
if (chain_next != NULL)
- oprintf (d.of, " %s %s * xlimit = x;\n",
- s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag);
+ {
+ /* TYPE_USER_STRUCTs should not occur here. These structures
+ are completely handled by user code. */
+ gcc_assert (orig_s->kind != TYPE_USER_STRUCT);
+
+ oprintf (d.of, " ");
+ write_type_decl (d.of, s);
+ oprintf (d.of, " * xlimit = x;\n");
+ }
if (chain_next == NULL)
{
oprintf (d.of, " if (%s (x", wtd->marker_routine);
{
oprintf (d.of, ", x, gt_%s_", wtd->param_prefix);
output_mangled_typename (d.of, orig_s);
- output_type_enum (d.of, orig_s);
}
oprintf (d.of, "))\n");
}
{
oprintf (d.of, ", xlimit, gt_%s_", wtd->param_prefix);
output_mangled_typename (d.of, orig_s);
- output_type_enum (d.of, orig_s);
}
oprintf (d.of, "))\n");
if (chain_circular != NULL)
{
oprintf (d.of, ", xprev, gt_%s_", wtd->param_prefix);
output_mangled_typename (d.of, orig_s);
- output_type_enum (d.of, orig_s);
}
oprintf (d.of, ");\n");
oprintf (d.of, " }\n");
{
oprintf (d.of, ", xlimit, gt_%s_", wtd->param_prefix);
output_mangled_typename (d.of, orig_s);
- output_type_enum (d.of, orig_s);
}
oprintf (d.of, "));\n");
if (mark_hook_name && !wtd->skip_hooks)
{
oprintf (d.of, " %s (x);\n", mark_hook_name);
}
+
d.prev_val[2] = "*x";
d.indent = 6;
- walk_type (s, &d);
+ if (orig_s->kind != TYPE_USER_STRUCT)
+ walk_type (s, &d);
+ else
+ {
+ /* User structures have no fields to walk. Simply generate a call
+ to the user-provided structure marker. */
+ oprintf (d.of, "%*sgt_%sx (x);\n", d.indent, "", wtd->prefix);
+ }
if (chain_next != NULL)
{
if (chain_circular != NULL)
oprintf (d.of, " while (x != xlimit);\n");
oprintf (d.of, "}\n");
+
+ if (orig_s->kind == TYPE_USER_STRUCT)
+ write_user_marking_functions (orig_s, wtd, &d);
+
+ if (for_user)
+ {
+ write_user_func_for_structure_body (orig_s, wtd->prefix, &d);
+ write_user_func_for_structure_ptr (d.of, orig_s, wtd);
+ }
}
+
/* Write out marker routines for STRUCTURES and PARAM_STRUCTS. */
static void
-write_types (outf_p output_header, type_p structures, type_p param_structs,
+write_types (outf_p output_header, type_p structures,
const struct write_types_data *wtd)
{
int nbfun = 0; /* Count the emitted functions. */
type_p s;
oprintf (output_header, "\n/* %s*/\n", wtd->comment);
+
/* We first emit the macros and the declarations. Functions' code is
emitted afterwards. This is needed in plugin mode. */
- oprintf (output_header, "/* macros and declarations */\n");
+ oprintf (output_header, "/* Macros and declarations. */\n");
for (s = structures; s; s = s->next)
- if (s->gc_used == GC_POINTED_TO || s->gc_used == GC_MAYBE_POINTED_TO)
+ /* Do not emit handlers for derived classes; we only ever deal with
+ the ultimate base class within an inheritance hierarchy. */
+ if ((s->gc_used == GC_POINTED_TO || s->gc_used == GC_MAYBE_POINTED_TO)
+ && !s->u.s.base_class)
{
options_p opt;
if (s->gc_used == GC_MAYBE_POINTED_TO && s->u.s.line.file == NULL)
continue;
+ const char *s_id_for_tag = filter_type_name (s->u.s.tag);
+
oprintf (output_header, "#define gt_%s_", wtd->prefix);
output_mangled_typename (output_header, s);
oprintf (output_header, "(X) do { \\\n");
oprintf (output_header,
" if (X != NULL) gt_%sx_%s (X);\\\n", wtd->prefix,
- s->u.s.tag);
+ s_id_for_tag);
oprintf (output_header, " } while (0)\n");
for (opt = s->u.s.opt; opt; opt = opt->next)
- if (strcmp (opt->name, "ptr_alias") == 0)
+ if (strcmp (opt->name, "ptr_alias") == 0
+ && opt->kind == OPTION_TYPE)
{
- const_type_p const t = (const_type_p) opt->info;
+ const_type_p const t = (const_type_p) opt->info.type;
if (t->kind == TYPE_STRUCT
|| t->kind == TYPE_UNION || t->kind == TYPE_LANG_STRUCT)
- oprintf (output_header,
- "#define gt_%sx_%s gt_%sx_%s\n",
- wtd->prefix, s->u.s.tag, wtd->prefix, t->u.s.tag);
+ {
+ const char *t_id_for_tag = filter_type_name (t->u.s.tag);
+ oprintf (output_header,
+ "#define gt_%sx_%s gt_%sx_%s\n",
+ wtd->prefix, s->u.s.tag, wtd->prefix, t_id_for_tag);
+ if (t_id_for_tag != t->u.s.tag)
+ free (CONST_CAST (char *, t_id_for_tag));
+ }
else
error_at_line (&s->u.s.line,
"structure alias is not a structure");
/* Declare the marker procedure only once. */
oprintf (output_header,
"extern void gt_%sx_%s (void *);\n",
- wtd->prefix, s->u.s.tag);
-
- if (s->u.s.line.file == NULL)
- {
- fprintf (stderr, "warning: structure `%s' used but not defined\n",
- s->u.s.tag);
- continue;
- }
- }
+ wtd->prefix, s_id_for_tag);
- for (s = param_structs; s; s = s->next)
- if (s->gc_used == GC_POINTED_TO)
- {
- type_p stru = s->u.param_struct.stru;
-
- /* Declare the marker procedure. */
- oprintf (output_header, "extern void gt_%s_", wtd->prefix);
- output_mangled_typename (output_header, s);
- oprintf (output_header, " (void *);\n");
+ if (s_id_for_tag != s->u.s.tag)
+ free (CONST_CAST (char *, s_id_for_tag));
- if (stru->u.s.line.file == NULL)
+ if (s->u.s.line.file == NULL)
{
fprintf (stderr, "warning: structure `%s' used but not defined\n",
s->u.s.tag);
nbfun++;
DBGPRINTF ("writing func #%d lang_struct ss @ %p '%s'",
nbfun, (void*) ss, ss->u.s.tag);
- write_func_for_structure (s, ss, NULL, wtd);
+ write_func_for_structure (s, ss, wtd);
}
}
else
nbfun++;
DBGPRINTF ("writing func #%d struct s @ %p '%s'",
nbfun, (void*) s, s->u.s.tag);
- write_func_for_structure (s, s, NULL, wtd);
+ write_func_for_structure (s, s, wtd);
}
}
else
(int) s->gc_used);
}
- for (s = param_structs; s; s = s->next)
- if (s->gc_used == GC_POINTED_TO)
- {
- type_p *param = s->u.param_struct.param;
- type_p stru = s->u.param_struct.stru;
- if (stru->u.s.line.file == NULL)
- continue;
- if (stru->kind == TYPE_LANG_STRUCT)
- {
- type_p ss;
- for (ss = stru->u.s.lang_struct; ss; ss = ss->next)
- {
- nbfun++;
- DBGPRINTF ("writing func #%d param lang_struct ss @ %p '%s'",
- nbfun, (void*) ss, ss->u.s.tag);
- write_func_for_structure (s, ss, param, wtd);
- }
- }
- else
- {
- nbfun++;
- DBGPRINTF ("writing func #%d param struct s @ %p stru @ %p '%s'",
- nbfun, (void*) s,
- (void*) stru, stru->u.s.tag);
- write_func_for_structure (s, stru, param, wtd);
- }
- }
- else
- {
- /* Param structure s is not pointed to, so should be ignored. */
- DBGPRINTF ("ignored s @ %p", (void*)s);
- }
if (verbosity_level >= 2)
printf ("%s emitted %d routines for %s\n",
progname, nbfun, wtd->comment);
static const struct write_types_data ggc_wtd = {
"ggc_m", NULL, "ggc_mark", "ggc_test_and_set_mark", NULL,
"GC marker procedures. ",
- FALSE
+ FALSE, WTK_GGC
};
static const struct write_types_data pch_wtd = {
"pch_n", "pch_p", "gt_pch_note_object", "gt_pch_note_object",
"gt_pch_note_reorder",
"PCH type-walking procedures. ",
- TRUE
+ TRUE, WTK_PCH
};
/* Write out the local pointer-walking routines. */
+/* process_field routine for local pointer-walking for user-callable
+ routines. The difference between this and
+ write_types_local_process_field is that, in this case, we do not
+ need to check whether the given pointer matches the address of the
+ parent structure. This check was already generated by the call
+ to gt_pch_nx in the main gt_pch_p_*() function that is calling
+ this code. */
+
+static void
+write_types_local_user_process_field (type_p f, const struct walk_type_data *d)
+{
+ switch (f->kind)
+ {
+ case TYPE_POINTER:
+ case TYPE_STRUCT:
+ case TYPE_UNION:
+ case TYPE_LANG_STRUCT:
+ case TYPE_STRING:
+ oprintf (d->of, "%*s op (&(%s), cookie);\n", d->indent, "", d->val);
+ break;
+
+ case TYPE_USER_STRUCT:
+ if (d->in_ptr_field)
+ oprintf (d->of, "%*s op (&(%s), cookie);\n", d->indent, "", d->val);
+ else
+ oprintf (d->of, "%*s gt_pch_nx (&(%s), op, cookie);\n",
+ d->indent, "", d->val);
+ break;
+
+ case TYPE_SCALAR:
+ break;
+
+ case TYPE_ARRAY:
+ case TYPE_NONE:
+ case TYPE_UNDEFINED:
+ gcc_unreachable ();
+ }
+}
+
+
+/* Write a function to PCH walk all the fields of type S on OF.
+ D contains data needed by walk_type to recurse into the fields of S. */
+
+static void
+write_pch_user_walking_for_structure_body (type_p s, struct walk_type_data *d)
+{
+ oprintf (d->of, "\nvoid\n");
+ oprintf (d->of, "gt_pch_nx (");
+ write_type_decl (d->of, s);
+ oprintf (d->of, "* x ATTRIBUTE_UNUSED,\n"
+ "\tATTRIBUTE_UNUSED gt_pointer_operator op,\n"
+ "\tATTRIBUTE_UNUSED void *cookie)\n");
+ oprintf (d->of, "{\n");
+ d->val = "(*x)";
+ d->indent = 2;
+ d->process_field = write_types_local_user_process_field;
+ walk_type (s, d);
+ oprintf (d->of, "}\n");
+}
+
+
+/* Emit the user-callable functions needed to mark all the types used
+ by the user structure S. PREFIX is the prefix to use to
+ distinguish ggc and pch markers. CHAIN_NEXT is set if S has the
+ chain_next option defined. D contains data needed to pass to
+ walk_type when traversing the fields of a type.
+
+ For every type T referenced by S, two routines are generated: one
+ that takes 'T *', marks the pointer and calls the second routine,
+ which just marks the fields of T. */
+
+static void
+write_pch_user_walking_functions (type_p s, struct walk_type_data *d)
+{
+ gcc_assert (s->kind == TYPE_USER_STRUCT);
+
+ for (pair_p fld = s->u.s.fields; fld; fld = fld->next)
+ {
+ type_p fld_type = fld->type;
+ if (union_or_struct_p (fld_type))
+ write_pch_user_walking_for_structure_body (fld_type, d);
+ }
+}
+
+
/* process_field routine for local pointer-walking. */
static void
write_types_local_process_field (type_p f, const struct walk_type_data *d)
{
+ gcc_assert (d->have_this_obj);
switch (f->kind)
{
case TYPE_POINTER:
case TYPE_STRUCT:
case TYPE_UNION:
case TYPE_LANG_STRUCT:
- case TYPE_PARAM_STRUCT:
case TYPE_STRING:
oprintf (d->of, "%*sif ((void *)(%s) == this_obj)\n", d->indent, "",
d->prev_val[3]);
oprintf (d->of, "%*s op (&(%s), cookie);\n", d->indent, "", d->val);
break;
+ case TYPE_USER_STRUCT:
+ oprintf (d->of, "%*sif ((void *)(%s) == this_obj)\n", d->indent, "",
+ d->prev_val[3]);
+ if (d->in_ptr_field)
+ oprintf (d->of, "%*s op (&(%s), cookie);\n", d->indent, "", d->val);
+ else
+ oprintf (d->of, "%*s gt_pch_nx (&(%s), op, cookie);\n",
+ d->indent, "", d->val);
+ break;
+
case TYPE_SCALAR:
break;
- default:
+ case TYPE_ARRAY:
+ case TYPE_NONE:
+ case TYPE_UNDEFINED:
gcc_unreachable ();
}
}
+
/* For S, a structure that's part of ORIG_S, and using parameters
PARAM, write out a routine that:
- Is of type gt_note_pointers
*/
static void
-write_local_func_for_structure (const_type_p orig_s, type_p s, type_p *param)
+write_local_func_for_structure (const_type_p orig_s, type_p s)
{
struct walk_type_data d;
+ /* Don't write fns for subclasses, only for the ultimate base class
+ within an inheritance hierarchy. */
+ if (s->u.s.base_class)
+ return;
+
memset (&d, 0, sizeof (d));
- d.of = get_output_file_for_structure (s, param);
+ d.of = get_output_file_for_structure (s);
d.process_field = write_types_local_process_field;
d.opt = s->u.s.opt;
d.line = &s->u.s.line;
d.bitmap = s->u.s.bitmap;
- d.param = param;
d.prev_val[0] = d.prev_val[2] = "*x";
d.prev_val[1] = "not valid postage"; /* Guarantee an error. */
d.prev_val[3] = "x";
"\tATTRIBUTE_UNUSED gt_pointer_operator op,\n"
"\tATTRIBUTE_UNUSED void *cookie)\n");
oprintf (d.of, "{\n");
- oprintf (d.of, " %s %s * const x ATTRIBUTE_UNUSED = (%s %s *)x_p;\n",
+ oprintf (d.of, " %s %s * x ATTRIBUTE_UNUSED = (%s %s *)x_p;\n",
s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag,
s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag);
d.indent = 2;
- walk_type (s, &d);
+ d.have_this_obj = true;
+
+ if (s->kind != TYPE_USER_STRUCT)
+ walk_type (s, &d);
+ else
+ {
+ /* User structures have no fields to walk. Simply generate a
+ call to the user-provided PCH walker. */
+ oprintf (d.of, "%*sif ((void *)(%s) == this_obj)\n", d.indent, "",
+ d.prev_val[3]);
+ oprintf (d.of, "%*s gt_pch_nx (&(%s), op, cookie);\n",
+ d.indent, "", d.val);
+ }
+
oprintf (d.of, "}\n");
+
+ /* Write user-callable entry points for the PCH walking routines. */
+ if (orig_s->kind == TYPE_USER_STRUCT)
+ write_pch_user_walking_functions (s, &d);
+
+ for (options_p o = s->u.s.opt; o; o = o->next)
+ if (strcmp (o->name, "for_user") == 0)
+ {
+ write_pch_user_walking_for_structure_body (s, &d);
+ break;
+ }
}
/* Write out local marker routines for STRUCTURES and PARAM_STRUCTS. */
static void
-write_local (outf_p output_header, type_p structures, type_p param_structs)
+write_local (outf_p output_header, type_p structures)
{
type_p s;
if (!output_header)
return;
+
oprintf (output_header, "\n/* Local pointer-walking routines. */\n");
for (s = structures; s; s = s->next)
if (s->gc_used == GC_POINTED_TO || s->gc_used == GC_MAYBE_POINTED_TO)
if (s->u.s.line.file == NULL)
continue;
-
- for (opt = s->u.s.opt; opt; opt = opt->next)
- if (strcmp (opt->name, "ptr_alias") == 0)
+ for (opt = s->u.s.opt; opt; opt = opt->next)
+ if (strcmp (opt->name, "ptr_alias") == 0
+ && opt->kind == OPTION_TYPE)
{
- const_type_p const t = (const_type_p) opt->info;
+ const_type_p const t = (const_type_p) opt->info.type;
if (t->kind == TYPE_STRUCT
|| t->kind == TYPE_UNION || t->kind == TYPE_LANG_STRUCT)
{
{
type_p ss;
for (ss = s->u.s.lang_struct; ss; ss = ss->next)
- write_local_func_for_structure (s, ss, NULL);
- }
- else
- write_local_func_for_structure (s, s, NULL);
- }
-
- for (s = param_structs; s; s = s->next)
- if (s->gc_used == GC_POINTED_TO)
- {
- type_p *param = s->u.param_struct.param;
- type_p stru = s->u.param_struct.stru;
-
- /* Declare the marker procedure. */
- oprintf (output_header, "extern void gt_pch_p_");
- output_mangled_typename (output_header, s);
- oprintf (output_header,
- "\n (void *, void *, gt_pointer_operator, void *);\n");
-
- if (stru->u.s.line.file == NULL)
- {
- fprintf (stderr, "warning: structure `%s' used but not defined\n",
- s->u.s.tag);
- continue;
- }
-
- if (stru->kind == TYPE_LANG_STRUCT)
- {
- type_p ss;
- for (ss = stru->u.s.lang_struct; ss; ss = ss->next)
- write_local_func_for_structure (s, ss, param);
- }
- else
- write_local_func_for_structure (s, stru, param);
- }
-}
-
-/* Nonzero if S is a type for which typed GC allocators should be output. */
-
-#define USED_BY_TYPED_GC_P(s) \
- (((s->kind == TYPE_POINTER) \
- && ((s->u.p->gc_used == GC_POINTED_TO) \
- || (s->u.p->gc_used == GC_USED))) \
- || (UNION_OR_STRUCT_P (s) && \
- (((s)->gc_used == GC_POINTED_TO) \
- || ((s)->gc_used == GC_MAYBE_POINTED_TO \
- && s->u.s.line.file != NULL) \
- || ((s)->gc_used == GC_USED \
- && strncmp (s->u.s.tag, "anonymous", strlen ("anonymous"))))))
-
-
-/* Write out the 'enum' definition for gt_types_enum. */
-
-static void
-write_enum_defn (type_p structures, type_p param_structs)
-{
- type_p s;
- int nbstruct = 0;
- int nbparamstruct = 0;
-
- if (!header_file)
- return;
- oprintf (header_file, "\n/* Enumeration of types known. */\n");
- oprintf (header_file, "enum gt_types_enum {\n");
- for (s = structures; s; s = s->next)
- if (USED_BY_TYPED_GC_P (s))
- {
- nbstruct++;
- DBGPRINTF ("write_enum_defn s @ %p nbstruct %d",
- (void*) s, nbstruct);
- if (UNION_OR_STRUCT_P (s))
- DBGPRINTF ("write_enum_defn s %p #%d is unionorstruct tagged %s",
- (void*) s, nbstruct, s->u.s.tag);
- oprintf (header_file, " gt_ggc_e_");
- output_mangled_typename (header_file, s);
- oprintf (header_file, ",\n");
- }
- for (s = param_structs; s; s = s->next)
- if (s->gc_used == GC_POINTED_TO)
- {
- nbparamstruct++;
- DBGPRINTF ("write_enum_defn s %p nbparamstruct %d",
- (void*) s, nbparamstruct);
- oprintf (header_file, " gt_e_");
- output_mangled_typename (header_file, s);
- oprintf (header_file, ",\n");
+ write_local_func_for_structure (s, ss);
+ }
+ else
+ write_local_func_for_structure (s, s);
}
- oprintf (header_file, " gt_types_enum_last\n");
- oprintf (header_file, "};\n");
- if (verbosity_level >= 2)
- printf ("%s handled %d GTY-ed structures & %d parameterized structures.\n",
- progname, nbstruct, nbparamstruct);
-
}
+/* Nonzero if S is a type for which typed GC allocators should be output. */
+
+#define USED_BY_TYPED_GC_P(s) \
+ ((s->kind == TYPE_POINTER \
+ && (s->u.p->gc_used == GC_POINTED_TO \
+ || s->u.p->gc_used == GC_USED)) \
+ || (union_or_struct_p (s) \
+ && ((s)->gc_used == GC_POINTED_TO \
+ || ((s)->gc_used == GC_MAYBE_POINTED_TO \
+ && s->u.s.line.file != NULL) \
+ || ((s)->gc_used == GC_USED \
+ && strncmp (s->u.s.tag, "anonymous", strlen ("anonymous"))) \
+ || (s->u.s.base_class && opts_have (s->u.s.opt, "tag")))))
+
+
+
/* Might T contain any non-pointer elements? */
static int
return 0;
case TYPE_ARRAY:
return contains_scalar_p (t->u.a.p);
+ case TYPE_USER_STRUCT:
+ /* User-marked structures will typically contain pointers. */
+ return 0;
default:
/* Could also check for structures that have no non-pointer
fields, but there aren't enough of those to worry about. */
}
}
+/* Finish off the created gt_clear_caches_file_c functions. */
+
+static void
+finish_cache_funcs (flist *flp)
+{
+ struct flist *fli2;
+
+ for (fli2 = flp; fli2; fli2 = fli2->next)
+ if (fli2->started_p)
+ {
+ oprintf (fli2->f, "}\n\n");
+ }
+
+ for (fli2 = flp; fli2 && base_files; fli2 = fli2->next)
+ if (fli2->started_p)
+ {
+ lang_bitmap bitmap = get_lang_bitmap (fli2->file);
+ int fnum;
+
+ for (fnum = 0; bitmap != 0; fnum++, bitmap >>= 1)
+ if (bitmap & 1)
+ {
+ oprintf (base_files[fnum], "extern void gt_clear_caches_");
+ put_mangled_filename (base_files[fnum], fli2->file);
+ oprintf (base_files[fnum], " ();\n");
+ }
+ }
+
+ for (size_t fnum = 0; base_files && fnum < num_lang_dirs; fnum++)
+ oprintf (base_files[fnum], "void\ngt_clear_caches ()\n{\n");
+
+ for (fli2 = flp; fli2; fli2 = fli2->next)
+ if (fli2->started_p)
+ {
+ lang_bitmap bitmap = get_lang_bitmap (fli2->file);
+ int fnum;
+
+ fli2->started_p = 0;
+
+ for (fnum = 0; base_files && bitmap != 0; fnum++, bitmap >>= 1)
+ if (bitmap & 1)
+ {
+ oprintf (base_files[fnum], " gt_clear_caches_");
+ put_mangled_filename (base_files[fnum], fli2->file);
+ oprintf (base_files[fnum], " ();\n");
+ }
+ }
+
+ for (size_t fnum = 0; base_files && fnum < num_lang_dirs; fnum++)
+ {
+ oprintf (base_files[fnum], "}\n");
+ }
+}
+
/* Write the first three fields (pointer, count and stride) for
root NAME to F. V and LINE are as for write_root.
static void
write_field_root (outf_p f, pair_p v, type_p type, const char *name,
- int has_length, struct fileloc *line, const char *if_marked,
+ int has_length, struct fileloc *line,
bool emit_pch, type_p field_type, const char *field_name)
{
+ struct pair newv;
/* If the field reference is relative to V, rather than to some
subcomponent of V, we can mark any subarrays with a single stride.
We're effectively treating the field as a global variable in its
own right. */
if (v && type == v->type)
{
- struct pair newv;
-
newv = *v;
newv.type = field_type;
newv.name = ACONCAT ((v->name, ".", field_name, NULL));
else if (field_type->kind == TYPE_ARRAY)
v = NULL;
write_root (f, v, field_type, ACONCAT ((name, ".", field_name, NULL)),
- has_length, line, if_marked, emit_pch);
+ has_length, line, emit_pch);
}
/* Write out to F the table entry and any marker routines needed to
- the C variable that contains NAME, if NAME is not part of an array.
LINE is the line of the C source that declares the root variable.
- HAS_LENGTH is nonzero iff V was a variable-length array. IF_MARKED
- is nonzero iff we are building the root table for hash table caches. */
+ HAS_LENGTH is nonzero iff V was a variable-length array. */
static void
write_root (outf_p f, pair_p v, type_p type, const char *name, int has_length,
- struct fileloc *line, const char *if_marked, bool emit_pch)
+ struct fileloc *line, bool emit_pch)
{
switch (type->kind)
{
for (o = fld->opt; o; o = o->next)
if (strcmp (o->name, "skip") == 0)
skip_p = 1;
- else if (strcmp (o->name, "desc") == 0)
- desc = o->info;
- else if (strcmp (o->name, "param_is") == 0)
- ;
+ else if (strcmp (o->name, "desc") == 0
+ && o->kind == OPTION_STRING)
+ desc = o->info.string;
else
error_at_line (line,
"field `%s' of global `%s' has unknown option `%s'",
{
const char *tag = NULL;
options_p oo;
-
- for (oo = ufld->opt; oo; oo = oo->next)
- if (strcmp (oo->name, "tag") == 0)
- tag = oo->info;
+ for (oo = ufld->opt; oo; oo = oo->next)
+ if (strcmp (oo->name, "tag") == 0
+ && oo->kind == OPTION_STRING)
+ tag = oo->info.string;
if (tag == NULL || strcmp (tag, desc) != 0)
continue;
if (validf != NULL)
validf = ufld;
}
if (validf != NULL)
- write_field_root (f, v, type, name, 0, line, if_marked,
- emit_pch, validf->type,
+ write_field_root (f, v, type, name, 0, line, emit_pch,
+ validf->type,
ACONCAT ((fld->name, ".",
validf->name, NULL)));
}
"global `%s.%s' has `desc' option but is not union",
name, fld->name);
else
- write_field_root (f, v, type, name, 0, line, if_marked,
- emit_pch, fld->type, fld->name);
+ write_field_root (f, v, type, name, 0, line, emit_pch, fld->type,
+ fld->name);
}
}
break;
{
char *newname;
newname = xasprintf ("%s[0]", name);
- write_root (f, v, type->u.a.p, newname, has_length, line, if_marked,
- emit_pch);
+ write_root (f, v, type->u.a.p, newname, has_length, line, emit_pch);
free (newname);
}
break;
+ case TYPE_USER_STRUCT:
+ error_at_line (line, "`%s' must be a pointer type, because it is "
+ "a GC root and its type is marked with GTY((user))",
+ v->name);
+ break;
+
case TYPE_POINTER:
{
- type_p tp;
+ const_type_p tp;
if (!start_root_entry (f, v, name, line))
return;
tp = type->u.p;
- if (!has_length && UNION_OR_STRUCT_P (tp))
+ if (!has_length && union_or_struct_p (tp))
{
- oprintf (f, " >_ggc_mx_%s,\n", tp->u.s.tag);
+ tp = get_ultimate_base_class (tp);
+ const char *id_for_tag = filter_type_name (tp->u.s.tag);
+ oprintf (f, " >_ggc_mx_%s,\n", id_for_tag);
if (emit_pch)
- oprintf (f, " >_pch_nx_%s", tp->u.s.tag);
+ oprintf (f, " >_pch_nx_%s", id_for_tag);
else
oprintf (f, " NULL");
- }
- else if (!has_length && tp->kind == TYPE_PARAM_STRUCT)
- {
- oprintf (f, " >_ggc_m_");
- output_mangled_typename (f, tp);
- if (emit_pch)
- {
- oprintf (f, ",\n >_pch_n_");
- output_mangled_typename (f, tp);
- }
- else
- oprintf (f, ",\n NULL");
+ if (id_for_tag != tp->u.s.tag)
+ free (CONST_CAST (char *, id_for_tag));
}
else if (has_length
- && (tp->kind == TYPE_POINTER || UNION_OR_STRUCT_P (tp)))
+ && (tp->kind == TYPE_POINTER || union_or_struct_p (tp)))
{
oprintf (f, " >_ggc_ma_%s,\n", name);
if (emit_pch)
"global `%s' is pointer to unimplemented type",
name);
}
- if (if_marked)
- oprintf (f, ",\n &%s", if_marked);
oprintf (f, "\n },\n");
}
break;
case TYPE_SCALAR:
break;
- default:
+ case TYPE_NONE:
+ case TYPE_UNDEFINED:
+ case TYPE_UNION:
+ case TYPE_LANG_STRUCT:
error_at_line (line, "global `%s' is unimplemented type", name);
}
}
d.line = &v->line;
d.opt = v->opt;
d.bitmap = get_lang_bitmap (v->line.file);
- d.param = NULL;
d.prev_val[3] = prevval3 = xasprintf ("&%s", v->name);
oprintf (d.of, "{\n");
d.prev_val[0] = d.prev_val[1] = d.prev_val[2] = d.val = v->name;
d.process_field = write_types_local_process_field;
+ d.have_this_obj = true;
walk_type (v->type, &d);
oprintf (f, "}\n\n");
}
oprintf (f, "{\n");
d.prev_val[0] = d.prev_val[1] = d.prev_val[2] = d.val = v->name;
d.process_field = write_types_process_field;
+ d.have_this_obj = false;
walk_type (v->type, &d);
free (prevval3);
oprintf (f, "}\n\n");
const char *length = NULL;
int deletable_p = 0;
options_p o;
-
for (o = v->opt; o; o = o->next)
- if (strcmp (o->name, "length") == 0)
- length = o->info;
+ if (strcmp (o->name, "length") == 0
+ && o->kind == OPTION_STRING)
+ length = o->info.string;
else if (strcmp (o->name, "deletable") == 0)
deletable_p = 1;
- else if (strcmp (o->name, "param_is") == 0)
- ;
- else if (strncmp (o->name, "param", 5) == 0
- && ISDIGIT (o->name[5]) && strcmp (o->name + 6, "_is") == 0)
- ;
- else if (strcmp (o->name, "if_marked") == 0)
+ else if (strcmp (o->name, "cache") == 0)
;
else
error_at_line (&v->line,
for (o = v->opt; o; o = o->next)
if (strcmp (o->name, "length") == 0)
length_p = 1;
- else if (strcmp (o->name, "deletable") == 0
- || strcmp (o->name, "if_marked") == 0)
+ else if (strcmp (o->name, "deletable") == 0)
skip_p = 1;
if (skip_p)
oprintf (f, "[] = {\n");
}
- write_root (f, v, v->type, v->name, length_p, &v->line, NULL, emit_pch);
+ write_root (f, v, v->type, v->name, length_p, &v->line, emit_pch);
}
finish_root_table (flp, "ggc_r", "LAST_GGC_ROOT_TAB", "ggc_root_tab",
for (o = v->opt; o; o = o->next)
if (strcmp (o->name, "deletable") == 0)
skip_p = 0;
- else if (strcmp (o->name, "if_marked") == 0)
- skip_p = 1;
if (skip_p)
continue;
outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*,
v->line.file));
struct flist *fli;
- const char *if_marked = NULL;
- int length_p = 0;
+ bool cache = false;
options_p o;
for (o = v->opt; o; o = o->next)
- if (strcmp (o->name, "length") == 0)
- length_p = 1;
- else if (strcmp (o->name, "if_marked") == 0)
- if_marked = o->info;
-
- if (if_marked == NULL)
+ if (strcmp (o->name, "cache") == 0)
+ cache = true;
+ if (!cache)
continue;
- if (v->type->kind != TYPE_POINTER
- || v->type->u.p->kind != TYPE_PARAM_STRUCT
- || v->type->u.p->u.param_struct.stru != find_structure ("htab", 0))
- {
- error_at_line (&v->line,
- "if_marked option used but not hash table");
- continue;
- }
-
for (fli = flp; fli; fli = fli->next)
if (fli->f == f)
break;
{
fli->started_p = 1;
- oprintf (f, "EXPORTED_CONST struct ggc_cache_tab gt_ggc_rc_");
+ oprintf (f, "void\ngt_clear_caches_");
put_mangled_filename (f, v->line.file);
- oprintf (f, "[] = {\n");
+ oprintf (f, " ()\n{\n");
}
- write_root (f, v, v->type->u.p->u.param_struct.param[0],
- v->name, length_p, &v->line, if_marked, emit_pch);
+ oprintf (f, " gt_cleare_cache (%s);\n", v->name);
}
- finish_root_table (flp, "ggc_rc", "LAST_GGC_CACHE_TAB", "ggc_cache_tab",
- "gt_ggc_cache_rtab");
+ finish_cache_funcs (flp);
if (!emit_pch)
return;
- for (v = variables; v; v = v->next)
- {
- outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*,
- v->line.file));
- struct flist *fli;
- int length_p = 0;
- int if_marked_p = 0;
- options_p o;
-
- for (o = v->opt; o; o = o->next)
- if (strcmp (o->name, "length") == 0)
- length_p = 1;
- else if (strcmp (o->name, "if_marked") == 0)
- if_marked_p = 1;
-
- if (!if_marked_p)
- continue;
-
- for (fli = flp; fli; fli = fli->next)
- if (fli->f == f)
- break;
- if (!fli->started_p)
- {
- fli->started_p = 1;
-
- oprintf (f, "EXPORTED_CONST struct ggc_root_tab gt_pch_rc_");
- put_mangled_filename (f, v->line.file);
- oprintf (f, "[] = {\n");
- }
-
- write_root (f, v, v->type, v->name, length_p, &v->line, NULL, emit_pch);
- }
-
- finish_root_table (flp, "pch_rc", "LAST_GGC_ROOT_TAB", "ggc_root_tab",
- "gt_pch_cache_rtab");
-
for (v = variables; v; v = v->next)
{
outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*,
options_p o;
for (o = v->opt; o; o = o->next)
- if (strcmp (o->name, "deletable") == 0
- || strcmp (o->name, "if_marked") == 0)
- skip_p = 1;
+ if (strcmp (o->name, "deletable") == 0)
+ {
+ skip_p = 1;
+ break;
+ }
if (skip_p)
continue;
"gt_pch_scalar_rtab");
}
-/* Record the definition of a generic VEC structure, as if we had expanded
- the macros in vec.h:
-
- typedef struct VEC_<type>_base GTY(()) {
- unsigned num;
- unsigned alloc;
- <type> GTY((length ("%h.num"))) vec[1];
- } VEC_<type>_base
-
- where the GTY(()) tags are only present if is_scalar is _false_. */
-
-void
-note_def_vec (const char *type_name, bool is_scalar, struct fileloc *pos)
-{
- pair_p fields;
- type_p t;
- options_p o;
- type_p len_ty = create_scalar_type ("unsigned");
- const char *name = concat ("VEC_", type_name, "_base", (char *) 0);
-
- if (is_scalar)
- {
- t = create_scalar_type (type_name);
- o = 0;
- }
- else
- {
- t = resolve_typedef (type_name, pos);
- o = create_option (0, "length", "%h.num");
- }
-
- /* We assemble the field list in reverse order. */
- fields = create_field_at (0, create_array (t, "1"), "vec", o, pos);
- fields = create_field_at (fields, len_ty, "alloc", 0, pos);
- fields = create_field_at (fields, len_ty, "num", 0, pos);
-
- do_typedef (name, new_structure (name, 0, pos, fields, 0), pos);
-}
-
-/* Record the definition of an allocation-specific VEC structure, as if
- we had expanded the macros in vec.h:
-
- typedef struct VEC_<type>_<astrat> {
- VEC_<type>_base base;
- } VEC_<type>_<astrat>;
-*/
-void
-note_def_vec_alloc (const char *type, const char *astrat, struct fileloc *pos)
-{
- const char *astratname = concat ("VEC_", type, "_", astrat, (char *) 0);
- const char *basename = concat ("VEC_", type, "_base", (char *) 0);
-
- pair_p field = create_field_at (0, resolve_typedef (basename, pos),
- "base", 0, pos);
-
- do_typedef (astratname, new_structure (astratname, 0, pos, field, 0), pos);
-}
-
-/* Returns the specifier keyword for a string or union type S, empty string
- otherwise. */
-
-static const char *
-get_type_specifier (const type_p s)
-{
- if (s->kind == TYPE_STRUCT || s->kind == TYPE_LANG_STRUCT)
- return "struct ";
- if (s->kind == TYPE_UNION)
- return "union ";
- return "";
-}
-
-/* TRUE if type S has the GTY variable_size annotation. */
-
-static bool
-variable_size_p (const type_p s)
-{
- options_p o;
- for (o = s->u.s.opt; o; o = o->next)
- if (strcmp (o->name, "variable_size") == 0)
- return true;
- return false;
-}
-
-enum alloc_quantity
-{ single, vector };
-enum alloc_zone
-{ any_zone, specific_zone };
-
-/* Writes one typed allocator definition for type identifier TYPE_NAME with
- optional type specifier TYPE_SPECIFIER. The allocator name will contain
- ALLOCATOR_TYPE. If VARIABLE_SIZE is true, the allocator will have an extra
- parameter specifying number of bytes to allocate. If QUANTITY is set to
- VECTOR, a vector allocator will be output, if ZONE is set to SPECIFIC_ZONE,
- the allocator will be zone-specific. */
-
-static void
-write_typed_alloc_def (bool variable_size, const char *type_specifier,
- const char *type_name, const char *allocator_type,
- enum alloc_quantity quantity, enum alloc_zone zone)
-{
- bool two_args = variable_size && (quantity == vector);
- bool third_arg = ((zone == specific_zone)
- && (variable_size || (quantity == vector)));
-
- oprintf (header_file, "#define ggc_alloc_%s%s", allocator_type, type_name);
- oprintf (header_file, "(%s%s%s%s%s) ",
- (variable_size ? "SIZE" : ""),
- (two_args ? ", " : ""),
- (quantity == vector) ? "n" : "",
- (third_arg ? ", " : ""), (zone == specific_zone) ? "z" : "");
- oprintf (header_file, "((%s%s *)", type_specifier, type_name);
- oprintf (header_file, "(ggc_internal_%salloc_stat (", allocator_type);
- if (zone == specific_zone)
- oprintf (header_file, "z, ");
- if (variable_size)
- oprintf (header_file, "SIZE");
- else
- oprintf (header_file, "sizeof (%s%s)", type_specifier, type_name);
- if (quantity == vector)
- oprintf (header_file, ", n");
- oprintf (header_file, " MEM_STAT_INFO)))\n");
-}
-
-/* Writes a typed allocator definition for a struct or union S. */
-
-static void
-write_typed_struct_alloc_def (const type_p s, const char *allocator_type,
- enum alloc_quantity quantity,
- enum alloc_zone zone)
-{
- write_typed_alloc_def (variable_size_p (s), get_type_specifier (s),
- s->u.s.tag, allocator_type, quantity, zone);
-}
-
-/* Writes a typed allocator definition for a typedef P. */
-
-static void
-write_typed_typedef_alloc_def (const pair_p p, const char *allocator_type,
- enum alloc_quantity quantity,
- enum alloc_zone zone)
-{
- write_typed_alloc_def (variable_size_p (p->type), "", p->name,
- allocator_type, quantity, zone);
-}
-
-/* Writes typed allocator definitions for the types in STRUCTURES and
- TYPEDEFS that are used by GC. */
-
-static void
-write_typed_alloc_defns (const type_p structures, const pair_p typedefs)
-{
- type_p s;
- pair_p p;
-
- oprintf (header_file,
- "\n/* Allocators for known structs and unions. */\n\n");
- for (s = structures; s; s = s->next)
- {
- if (!USED_BY_TYPED_GC_P (s))
- continue;
- write_typed_struct_alloc_def (s, "", single, any_zone);
- write_typed_struct_alloc_def (s, "cleared_", single, any_zone);
- write_typed_struct_alloc_def (s, "vec_", vector, any_zone);
- write_typed_struct_alloc_def (s, "cleared_vec_", vector, any_zone);
- write_typed_struct_alloc_def (s, "zone_", single, specific_zone);
- write_typed_struct_alloc_def (s, "zone_cleared_", single,
- specific_zone);
- write_typed_struct_alloc_def (s, "zone_vec_", vector, specific_zone);
- write_typed_struct_alloc_def (s, "zone_cleared_vec_", vector,
- specific_zone);
- }
-
- oprintf (header_file, "\n/* Allocators for known typedefs. */\n");
- for (p = typedefs; p; p = p->next)
- {
- s = p->type;
- if (!USED_BY_TYPED_GC_P (s) || (strcmp (p->name, s->u.s.tag) == 0))
- continue;
- write_typed_typedef_alloc_def (p, "", single, any_zone);
- write_typed_typedef_alloc_def (p, "cleared_", single, any_zone);
- write_typed_typedef_alloc_def (p, "vec_", vector, any_zone);
- write_typed_typedef_alloc_def (p, "cleared_vec_", vector, any_zone);
- write_typed_typedef_alloc_def (p, "zone_", single, specific_zone);
- write_typed_typedef_alloc_def (p, "zone_cleared_", single,
- specific_zone);
- write_typed_typedef_alloc_def (p, "zone_cleared_vec_", vector,
- specific_zone);
- }
-}
-
/* Prints not-as-ugly version of a typename of T to OF. Trades the uniquness
guaranteee for somewhat increased readability. If name conflicts do happen,
this funcion will have to be adjusted to be more like
output_typename (of, t->u.p);
break;
case TYPE_STRUCT:
+ case TYPE_USER_STRUCT:
case TYPE_UNION:
case TYPE_LANG_STRUCT:
oprintf (of, "%s", t->u.s.tag);
break;
- case TYPE_PARAM_STRUCT:
- {
- int i;
- for (i = 0; i < NUM_PARAM; i++)
- if (t->u.param_struct.param[i] != NULL)
- {
- output_typename (of, t->u.param_struct.param[i]);
- oprintf (of, "_");
- }
- output_typename (of, t->u.param_struct.stru);
- break;
- }
- default:
+ case TYPE_NONE:
+ case TYPE_UNDEFINED:
+ case TYPE_ARRAY:
gcc_unreachable ();
}
}
-/* Writes a typed GC allocator for type S that is suitable as a callback for
- the splay tree implementation in libiberty. */
-
-static void
-write_splay_tree_allocator_def (const_type_p s)
-{
- outf_p of = get_output_file_with_visibility (NULL);
- oprintf (of, "void * ggc_alloc_splay_tree_");
- output_typename (of, s);
- oprintf (of, " (int sz, void * nl)\n");
- oprintf (of, "{\n");
- oprintf (of, " return ggc_splay_alloc (");
- oprintf (of, "gt_e_");
- output_mangled_typename (of, s);
- oprintf (of, ", sz, nl);\n");
- oprintf (of, "}\n\n");
-}
-
-/* Writes typed GC allocators for PARAM_STRUCTS that are suitable as callbacks
- for the splay tree implementation in libiberty. */
-
-static void
-write_splay_tree_allocators (const_type_p param_structs)
-{
- const_type_p s;
-
- oprintf (header_file, "\n/* Splay tree callback allocators. */\n");
- for (s = param_structs; s; s = s->next)
- if (s->gc_used == GC_POINTED_TO)
- {
- oprintf (header_file, "extern void * ggc_alloc_splay_tree_");
- output_typename (header_file, s);
- oprintf (header_file, " (int, void *);\n");
- write_splay_tree_allocator_def (s);
- }
-}
-
-static void dump_pair (int indent, pair_p p);
-static void dump_type (int indent, type_p p);
-static void dump_type_list (int indent, type_p p);
-
#define INDENT 2
/* Dumps the value of typekind KIND. */
case TYPE_STRUCT:
printf ("TYPE_STRUCT");
break;
+ case TYPE_UNDEFINED:
+ printf ("TYPE_UNDEFINED");
+ break;
+ case TYPE_USER_STRUCT:
+ printf ("TYPE_USER_STRUCT");
+ break;
case TYPE_UNION:
printf ("TYPE_UNION");
break;
case TYPE_LANG_STRUCT:
printf ("TYPE_LANG_STRUCT");
break;
- case TYPE_PARAM_STRUCT:
- printf ("TYPE_PARAM_STRUCT");
- break;
default:
gcc_unreachable ();
}
o = opt;
while (o)
{
- printf ("%s:%s ", o->name, o->info);
+ switch (o->kind)
+ {
+ case OPTION_STRING:
+ printf ("%s:string %s ", o->name, o->info.string);
+ break;
+ case OPTION_TYPE:
+ printf ("%s:type ", o->name);
+ dump_type (indent+1, o->info.type);
+ break;
+ case OPTION_NESTED:
+ printf ("%s:nested ", o->name);
+ break;
+ case OPTION_NONE:
+ gcc_unreachable ();
+ }
o = o->next;
}
printf ("\n");
{
pair_p fields;
- gcc_assert (t->kind == TYPE_STRUCT || t->kind == TYPE_UNION
- || t->kind == TYPE_LANG_STRUCT);
+ gcc_assert (union_or_struct_p (t));
printf ("%*cu.s.tag = %s\n", indent, ' ', t->u.s.tag);
dump_fileloc (indent, t->u.s.line);
printf ("%*cu.s.fields =\n", indent, ' ');
dump_type_list (indent + INDENT, t->u.a.p);
}
-/* Recursively dumps the parameterized struct T. */
-
-static void
-dump_type_u_param_struct (int indent, type_p t)
-{
- int i;
- gcc_assert (t->kind == TYPE_PARAM_STRUCT);
- printf ("%*cu.param_struct.stru:\n", indent, ' ');
- dump_type_list (indent, t->u.param_struct.stru);
- dump_fileloc (indent, t->u.param_struct.line);
- for (i = 0; i < NUM_PARAM; i++)
- {
- if (t->u.param_struct.param[i] == NULL)
- continue;
- printf ("%*cu.param_struct.param[%d]:\n", indent, ' ', i);
- dump_type (indent + INDENT, t->u.param_struct.param[i]);
- }
-}
-
/* Recursively dumps the type list T. */
static void
{
PTR *slot;
+ if (seen_types == NULL)
+ seen_types = htab_create (100, htab_hash_pointer, htab_eq_pointer, NULL);
+
printf ("%*cType at %p: ", indent, ' ', (void *) t);
slot = htab_find_slot (seen_types, t, INSERT);
if (*slot != NULL)
case TYPE_STRUCT:
case TYPE_UNION:
case TYPE_LANG_STRUCT:
+ case TYPE_USER_STRUCT:
dump_type_u_s (indent + INDENT, t);
break;
case TYPE_POINTER:
case TYPE_ARRAY:
dump_type_u_a (indent + INDENT, t);
break;
- case TYPE_PARAM_STRUCT:
- dump_type_u_param_struct (indent + INDENT, t);
- break;
default:
gcc_unreachable ();
}
printf ("End of %s\n\n", name);
}
-/* Dumps the internal structures of gengtype. */
+/* Dumps the internal structures of gengtype. This is useful to debug
+ gengtype itself, or to understand what it does, e.g. for plugin
+ developers. */
static void
dump_everything (void)
{
- seen_types = htab_create (100, htab_hash_pointer, htab_eq_pointer, NULL);
dump_pair_list ("typedefs", typedefs);
dump_structures ("structures", structures);
- dump_structures ("param_structs", param_structs);
dump_pair_list ("variables", variables);
+
+ /* Allocated with the first call to dump_type. */
htab_delete (seen_types);
}
\f
f = XCNEWVAR (input_file, sizeof (input_file)+namlen+2);
f->inpbitmap = 0;
f->inpoutf = NULL;
+ f->inpisplugin = false;
strcpy (f->inpname, name);
slot = htab_find_slot (input_file_htab, f, INSERT);
gcc_assert (slot != NULL);
const input_file *inpfx = (const input_file *) x;
const input_file *inpfy = (const input_file *) y;
gcc_assert (inpfx != NULL && inpfy != NULL);
- return !strcmp (get_input_file_name (inpfx), get_input_file_name (inpfy));
+ return !filename_cmp (get_input_file_name (inpfx), get_input_file_name (inpfy));
}
DBGPRINTF ("inputlist %s", inputlist);
if (read_state_filename)
{
- fatal ("read state %s not implemented yet", read_state_filename);
- /* TODO: implement read state. */
+ if (inputlist)
+ fatal ("input list %s cannot be given with a read state file %s",
+ inputlist, read_state_filename);
+ read_state (read_state_filename);
+ DBGPRINT_COUNT_TYPE ("structures after read_state", structures);
}
else if (inputlist)
{
we can see them. We should initialize them before calling
read_input_list. */
#define POS_HERE(Call) do { pos.file = this_file; pos.line = __LINE__; \
- Call;} while(0)
+ Call;} while (0)
POS_HERE (do_scalar_typedef ("CUMULATIVE_ARGS", &pos));
POS_HERE (do_scalar_typedef ("REAL_VALUE_TYPE", &pos));
POS_HERE (do_scalar_typedef ("FIXED_VALUE_TYPE", &pos));
POS_HERE (do_scalar_typedef ("double_int", &pos));
+ POS_HERE (do_scalar_typedef ("offset_int", &pos));
+ POS_HERE (do_scalar_typedef ("widest_int", &pos));
+ POS_HERE (do_scalar_typedef ("int64_t", &pos));
POS_HERE (do_scalar_typedef ("uint64_t", &pos));
POS_HERE (do_scalar_typedef ("uint8", &pos));
+ POS_HERE (do_scalar_typedef ("uintptr_t", &pos));
POS_HERE (do_scalar_typedef ("jword", &pos));
POS_HERE (do_scalar_typedef ("JCF_u2", &pos));
POS_HERE (do_scalar_typedef ("void", &pos));
+ POS_HERE (do_scalar_typedef ("machine_mode", &pos));
POS_HERE (do_typedef ("PTR",
create_pointer (resolve_typedef ("void", &pos)),
&pos));
(int) i, get_input_file_name (gt_files[i]));
}
if (verbosity_level >= 1)
- printf ("%s parsed %d files\n", progname, (int) num_gt_files);
+ printf ("%s parsed %d files with %d GTY types\n",
+ progname, (int) num_gt_files, type_count);
DBGPRINT_COUNT_TYPE ("structures after parsing", structures);
- DBGPRINT_COUNT_TYPE ("param_structs after parsing", param_structs);
-
}
else
fatal ("either an input list or a read state file should be given");
fatal ("No plugin files given in plugin mode for %s",
plugin_output_filename);
- /* Parse our plugin files. */
+ /* Parse our plugin files and augment the state. */
for (ix = 0; ix < nb_plugin_files; ix++)
- parse_file (get_input_file_name (plugin_files[ix]));
-
+ {
+ input_file* pluginput = plugin_files [ix];
+ pluginput->inpisplugin = true;
+ parse_file (get_input_file_name (pluginput));
+ }
if (hit_error)
return 1;
gen_rtx_next ();
- /* The call to set_gc_used may indirectly call find_param_structure
- hence enlarge the param_structs list of types. */
set_gc_used (variables);
- /* We should write the state here, but it is not yet implemented. */
+ for (type_p t = structures; t; t = t->next)
+ {
+ bool for_user = false;
+ for (options_p o = t->u.s.opt; o; o = o->next)
+ if (strcmp (o->name, "for_user") == 0)
+ {
+ for_user = true;
+ break;
+ }
+
+ if (for_user)
+ set_gc_used_type (t, GC_POINTED_TO);
+ }
+ /* The state at this point is read from the state input file or by
+ parsing source files and optionally augmented by parsing plugin
+ source files. Write it now. */
if (write_state_filename)
{
- fatal ("write state %s in not yet implemented", write_state_filename);
- /* TODO: implement write state. */
+ DBGPRINT_COUNT_TYPE ("structures before write_state", structures);
+
+ if (hit_error)
+ fatal ("didn't write state file %s after errors",
+ write_state_filename);
+
+ DBGPRINTF ("before write_state %s", write_state_filename);
+ write_state (write_state_filename);
+
+ if (do_dump)
+ dump_everything ();
+
+ /* After having written the state file we return immediately to
+ avoid generating any output file. */
+ if (hit_error)
+ return 1;
+ else
+ return 0;
}
open_base_files ();
- write_enum_defn (structures, param_structs);
- write_typed_alloc_defns (structures, typedefs);
output_header = plugin_output ? plugin_output : header_file;
DBGPRINT_COUNT_TYPE ("structures before write_types outputheader",
structures);
- DBGPRINT_COUNT_TYPE ("param_structs before write_types outputheader",
- param_structs);
- write_types (output_header, structures, param_structs, &ggc_wtd);
+ write_types (output_header, structures, &ggc_wtd);
if (plugin_files == NULL)
{
DBGPRINT_COUNT_TYPE ("structures before write_types headerfil",
structures);
- DBGPRINT_COUNT_TYPE ("param_structs before write_types headerfil",
- param_structs);
- write_types (header_file, structures, param_structs, &pch_wtd);
- write_local (header_file, structures, param_structs);
+ write_types (header_file, structures, &pch_wtd);
+ write_local (header_file, structures);
}
- write_splay_tree_allocators (param_structs);
write_roots (variables, plugin_files == NULL);
write_rtx_next ();
close_output_files ();
projects / gcc.git / blobdiff