---
gcc/pdbout.c | 449 +++++++++++++++++++++++++++++++++++++++++++++++++++
gcc/pdbout.h | 43 +++++
2 files changed, 492 insertions(+)
diff --git a/gcc/pdbout.c b/gcc/pdbout.c
index 5089203e339..9701aaf8902 100644
--- a/gcc/pdbout.c
+++ b/gcc/pdbout.c
@@ -46,6 +46,8 @@
#define FIRST_TYPE_NUM 0x1000
+static const char unnamed[] = "<unnamed-tag>";
+
static void pdbout_begin_prologue (unsigned int line ATTRIBUTE_UNUSED,
unsigned int column ATTRIBUTE_UNUSED,
const char *file ATTRIBUTE_UNUSED);
@@ -80,6 +82,8 @@ static struct pdb_type *arglist_types = NULL;
static struct pdb_type *pointer_types = NULL;
static struct pdb_type *proc_types = NULL;
static struct pdb_type *modifier_types = NULL;
+static struct pdb_type *fieldlist_types = NULL;
+static struct pdb_type *enum_types = NULL;
static struct pdb_type *array_types = NULL;
static struct pdb_alias *aliases = NULL;
static struct pdb_source_file *source_files = NULL, *last_source_file = NULL;
@@ -806,9 +810,235 @@ write_pdb_section (void)
static void
free_type (struct pdb_type *t)
{
+ switch (t->cv_type)
+ {
+ case LF_FIELDLIST:
+ {
+ struct pdb_fieldlist *fl = (struct pdb_fieldlist *) t->data;
+
+ for (unsigned int i = 0; i < fl->count; i++)
+ {
+ if (fl->entries[i].name)
+ free (fl->entries[i].name);
+ }
+
+ break;
+ }
+
+ case LF_ENUM:
+ {
+ struct pdb_enum *en = (struct pdb_enum *) t->data;
+
+ if (en->name)
+ free (en->name);
+
+ break;
+ }
+ }
+
free (t);
}
+/* Output a lfFieldlist structure, which describes the values of an enum. */
+static void
+write_fieldlist (struct pdb_fieldlist *fl)
+{
+ unsigned int len = 4;
+
+ for (unsigned int i = 0; i < fl->count; i++)
+ {
+ len += 2;
+
+ switch (fl->entries[i].cv_type)
+ {
+ case LF_ENUMERATE:
+ len += 5;
+
+ /* Positive values less than 0x8000 are stored as they are; otherwise
+ * we prepend two bytes describing what type it is. */
+
+ if (fl->entries[i].value >= 0x8000 || fl->entries[i].value < 0)
+ {
+ if (fl->entries[i].value >= -127 && fl->entries[i].value < 0)
+ len++; // LF_CHAR
+ else if (fl->entries[i].value >= -0x7fff &&
+ fl->entries[i].value <= 0x7fff)
+ {
+ len += 2; // LF_SHORT
+ }
+ else if (fl->entries[i].value >= 0x8000 &&
+ fl->entries[i].value <= 0xffff)
+ {
+ len += 2; // LF_USHORT
+ }
+ else if (fl->entries[i].value >= -0x7fffffff &&
+ fl->entries[i].value <= 0x7fffffff)
+ {
+ len += 4; // LF_LONG
+ }
+ else if (fl->entries[i].value >= 0x80000000 &&
+ fl->entries[i].value <= 0xffffffff)
+ {
+ len += 4; // LF_ULONG
+ }
+ else
+ len += 8; // LF_QUADWORD or LF_UQUADWORD
+ }
+
+ if (fl->entries[i].name)
+ len += strlen (fl->entries[i].name);
+
+ break;
+ }
+
+ if (len % 4 != 0)
+ len += 4 - (len % 4);
+ }
+
+ fprintf (asm_out_file, "\t.short\t0x%x\n", len - 2);
+ fprintf (asm_out_file, "\t.short\t0x%x\n", LF_FIELDLIST);
+
+ for (unsigned int i = 0; i < fl->count; i++)
+ {
+ fprintf (asm_out_file, "\t.short\t0x%x\n", fl->entries[i].cv_type);
+
+ switch (fl->entries[i].cv_type)
+ {
+ case LF_ENUMERATE:
+ {
+ size_t name_len =
+ fl->entries[i].name ? strlen (fl->entries[i].name) : 0;
+ unsigned int align;
+
+ fprintf (asm_out_file, "\t.short\t0x%x\n",
+ fl->entries[i].fld_attr);
+
+ align = (3 + name_len) % 4;
+
+ if (fl->entries[i].value >= 0 && fl->entries[i].value < 0x8000)
+ fprintf (asm_out_file, "\t.short\t0x%x\n",
+ (uint16_t) fl->entries[i].value);
+ else if (fl->entries[i].value >= -127 && fl->entries[i].value < 0)
+ {
+ fprintf (asm_out_file, "\t.short\t0x%x\n", LF_CHAR);
+ fprintf (asm_out_file, "\t.byte\t0x%x\n",
+ (unsigned int) ((int8_t) fl->entries[i].value & 0xff));
+
+ align = (align + 1) % 4;
+ }
+ else if (fl->entries[i].value >= -0x7fff
+ && fl->entries[i].value <= 0x7fff)
+ {
+ fprintf (asm_out_file, "\t.short\t0x%x\n", LF_SHORT);
+ fprintf (asm_out_file, "\t.short\t0x%x\n",
+ (unsigned int) ((int16_t) fl->entries[i].
+ value & 0xffff));
+
+ align = (align + 2) % 4;
+ }
+ else if (fl->entries[i].value >= 0x8000
+ && fl->entries[i].value <= 0xffff)
+ {
+ fprintf (asm_out_file, "\t.short\t0x%x\n", LF_USHORT);
+ fprintf (asm_out_file, "\t.short\t0x%x\n",
+ (unsigned int) ((uint16_t) fl->entries[i].
+ value & 0xffff));
+
+ align = (align + 2) % 4;
+ }
+ else if (fl->entries[i].value >= -0x7fffffff
+ && fl->entries[i].value <= 0x7fffffff)
+ {
+ fprintf (asm_out_file, "\t.short\t0x%x\n", LF_LONG);
+ fprintf (asm_out_file, "\t.long\t0x%x\n",
+ (int32_t) fl->entries[i].value);
+ }
+ else if (fl->entries[i].value >= 0x80000000
+ && fl->entries[i].value <= 0xffffffff)
+ {
+ fprintf (asm_out_file, "\t.short\t0x%x\n", LF_ULONG);
+ fprintf (asm_out_file, "\t.long\t0x%x\n",
+ (uint32_t) fl->entries[i].value);
+ }
+ else if (fl->entries[i].value < 0)
+ {
+ fprintf (asm_out_file, "\t.short\t0x%x\n", LF_QUADWORD);
+ fprintf (asm_out_file, "\t.quad\t0x%" PRIx64 "\n",
+ (int64_t) fl->entries[i].value);
+ }
+ else
+ {
+ fprintf (asm_out_file, "\t.short\t0x%x\n", LF_UQUADWORD);
+ fprintf (asm_out_file, "\t.quad\t0x%" PRIx64 "\n",
+ (uint64_t) fl->entries[i].value);
+ }
+
+ if (fl->entries[i].name)
+ ASM_OUTPUT_ASCII (asm_out_file, fl->entries[i].name,
+ name_len + 1);
+ else
+ fprintf (asm_out_file, "\t.byte\t0\n");
+
+ // handle alignment padding
+
+ align = 4 - align;
+
+ if (align != 4)
+ {
+ if (align == 3)
+ fprintf (asm_out_file, "\t.byte\t0xf3\n");
+
+ if (align >= 2)
+ fprintf (asm_out_file, "\t.byte\t0xf2\n");
+
+ fprintf (asm_out_file, "\t.byte\t0xf1\n");
+ }
+
+ break;
+ }
+ }
+ }
+}
+
+/* Output a lfEnum structure. */
+static void
+write_enum (struct pdb_enum *en)
+{
+ size_t name_len = en->name ? strlen (en->name) : (sizeof (unnamed) - 1);
+ unsigned int len = 17 + name_len, align;
+
+ if (len % 4 != 0)
+ len += 4 - (len % 4);
+
+ fprintf (asm_out_file, "\t.short\t0x%x\n", len - 2);
+ fprintf (asm_out_file, "\t.short\t0x%x\n", LF_ENUM);
+ fprintf (asm_out_file, "\t.short\t0x%x\n", en->count);
+ fprintf (asm_out_file, "\t.short\t0\n"); // property
+ fprintf (asm_out_file, "\t.short\t0x%x\n", en->type ? en->type->id : 0);
+ fprintf (asm_out_file, "\t.short\t0\n"); // padding
+ fprintf (asm_out_file, "\t.short\t0x%x\n",
+ en->field_type ? en->field_type->id : 0);
+ fprintf (asm_out_file, "\t.short\t0\n"); // padding
+
+ if (en->name)
+ ASM_OUTPUT_ASCII (asm_out_file, en->name, name_len + 1);
+ else
+ ASM_OUTPUT_ASCII (asm_out_file, unnamed, sizeof (unnamed));
+
+ align = 4 - ((1 + name_len) % 4);
+
+ if (align != 4)
+ {
+ if (align == 3)
+ fprintf (asm_out_file, "\t.byte\t0xf3\n");
+
+ if (align >= 2)
+ fprintf (asm_out_file, "\t.byte\t0xf2\n");
+
+ fprintf (asm_out_file, "\t.byte\t0xf1\n");
+ }
+}
+
/* Output a lfPointer structure. */
static void
write_pointer (struct pdb_pointer *ptr)
@@ -952,6 +1182,14 @@ write_type (struct pdb_type *t)
{
switch (t->cv_type)
{
+ case LF_FIELDLIST:
+ write_fieldlist ((struct pdb_fieldlist *) t->data);
+ break;
+
+ case LF_ENUM:
+ write_enum ((struct pdb_enum *) t->data);
+ break;
+
case LF_POINTER:
if (t->id < FIRST_TYPE_NUM) // pointer to builtin
return;
@@ -1158,6 +1396,87 @@ pdbout_late_global_decl (tree var)
global_vars = v;
}
+/* Add a fieldlist, which is the basis of enums. */
+static struct pdb_type *
+add_type_fieldlist (struct pdb_type *t)
+{
+ struct pdb_type *type, *last_entry = NULL;
+
+ type = fieldlist_types;
+ while (type)
+ {
+ struct pdb_fieldlist *fl1 = (struct pdb_fieldlist *) t->data;
+ struct pdb_fieldlist *fl2 = (struct pdb_fieldlist *) type->data;
+
+ if (fl1->count == fl2->count)
+ {
+ bool same = true;
+
+ for (unsigned int i = 0; i < fl1->count; i++)
+ {
+ struct pdb_fieldlist_entry *pfe1 =
+ (struct pdb_fieldlist_entry *) &fl1->entries[i];
+ struct pdb_fieldlist_entry *pfe2 =
+ (struct pdb_fieldlist_entry *) &fl2->entries[i];
+
+ if (pfe1->cv_type != pfe2->cv_type)
+ {
+ same = false;
+ break;
+ }
+
+ if (pfe1->cv_type == LF_ENUMERATE)
+ {
+ if (pfe1->value != pfe2->value ||
+ ((pfe1->name || pfe2->name) &&
+ (!pfe1->name || !pfe2->name ||
+ strcmp (pfe1->name, pfe2->name))))
+ {
+ same = false;
+ break;
+ }
+ }
+ }
+
+ if (same)
+ {
+ for (unsigned int i = 0; i < fl1->count; i++)
+ {
+ struct pdb_fieldlist_entry *pfe1 =
+ (struct pdb_fieldlist_entry *) &fl1->entries[i];
+
+ if (pfe1->name)
+ free (pfe1->name);
+ }
+
+ free (t);
+
+ return type;
+ }
+ }
+
+ last_entry = type;
+ type = type->next2;
+ }
+
+ t->next = t->next2 = NULL;
+ t->id = 0;
+
+ if (last_entry)
+ last_entry->next2 = t;
+ else
+ fieldlist_types = t;
+
+ if (last_type)
+ last_type->next = t;
+ else
+ types = t;
+
+ last_type = t;
+
+ return t;
+}
+
/* Given an array type t, allocate a new pdb_type and add it to the
* type list. */
static struct pdb_type *
@@ -1278,6 +1597,133 @@ add_arglist_type (struct pdb_type *t)
return t;
}
+/* For a given enum, allocate a new pdb_type and add it to the type list. */
+static struct pdb_type *
+find_type_enum (tree t)
+{
+ tree v;
+ struct pdb_type *fltype, *enumtype, *last_entry = NULL;
+ struct pdb_fieldlist *fieldlist;
+ struct pdb_fieldlist_entry *ent;
+ struct pdb_enum *en;
+ unsigned int num_entries;
+ struct pdb_type *en_type;
+ char *name;
+ struct pdb_type **slot;
+
+ v = TYPE_VALUES (t);
+ num_entries = 0;
+
+ while (v)
+ {
+ num_entries++;
+
+ v = TREE_CHAIN (v);
+ }
+
+ // add fieldlist type
+
+ fltype =
+ (struct pdb_type *) xmalloc (offsetof (struct pdb_type, data) +
+ offsetof (struct pdb_fieldlist, entries) +
+ (num_entries *
+ sizeof (struct pdb_fieldlist_entry)));
+ fltype->cv_type = LF_FIELDLIST;
+ fltype->tree = NULL;
+
+ fieldlist = (struct pdb_fieldlist *) fltype->data;
+ fieldlist->count = num_entries;
+
+ ent = fieldlist->entries;
+ v = TYPE_VALUES (t);
+
+ while (v)
+ {
+ ent->cv_type = LF_ENUMERATE;
+ ent->fld_attr = 0;
+ ent->type = NULL;
+
+ if (TREE_CODE (TREE_VALUE (v)) == CONST_DECL)
+ ent->value = TREE_INT_CST_ELT (DECL_INITIAL (TREE_VALUE (v)), 0);
+ else if (TREE_CODE (TREE_VALUE (v)) == INTEGER_CST)
+ ent->value = TREE_INT_CST_ELT (TREE_VALUE (v), 0);
+ else
+ ent->value = 0;
+
+ ent->name = xstrdup (IDENTIFIER_POINTER (TREE_PURPOSE (v)));
+
+ v = TREE_CHAIN (v);
+ ent++;
+ }
+
+ fltype = add_type_fieldlist (fltype);
+
+ // add type for enum
+
+ en_type = TREE_TYPE (t) ? find_type (TREE_TYPE (t)) : NULL;
+
+ if (TYPE_NAME (t) && TREE_CODE (TYPE_NAME (t)) == IDENTIFIER_NODE)
+ name = xstrdup (IDENTIFIER_POINTER (TYPE_NAME (t)));
+ else if (TYPE_NAME (t) && TREE_CODE (TYPE_NAME (t)) == TYPE_DECL
+ && IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (t)))[0] != '.')
+ name = xstrdup (IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (t))));
+ else
+ name = NULL;
+
+ enumtype = enum_types;
+ while (enumtype)
+ {
+ en = (struct pdb_enum *) enumtype->data;
+
+ if (en->count == num_entries &&
+ en->type == en_type &&
+ en->field_type == fltype &&
+ ((!en->name && !name)
+ || (en->name && name && !strcmp (en->name, name))))
+ {
+ if (name)
+ free (name);
+
+ return enumtype;
+ }
+
+ last_entry = enumtype;
+ enumtype = enumtype->next2;
+ }
+
+ enumtype =
+ (struct pdb_type *) xmalloc (offsetof (struct pdb_type, data) +
+ sizeof (struct pdb_enum));
+ enumtype->cv_type = LF_ENUM;
+ enumtype->tree = t;
+ enumtype->next = enumtype->next2 = NULL;
+ enumtype->id = 0;
+
+ en = (struct pdb_enum *) enumtype->data;
+ en->count = num_entries;
+ en->field_type = fltype;
+ en->type = en_type;
+ en->name = name;
+
+ if (last_entry)
+ last_entry->next2 = enumtype;
+ else
+ enum_types = enumtype;
+
+ if (last_type)
+ last_type->next = enumtype;
+ else
+ types = enumtype;
+
+ last_type = enumtype;
+
+ slot =
+ tree_hash_table.find_slot_with_hash (t, htab_hash_pointer (t), INSERT);
+ *slot = enumtype;
+
+ return enumtype;
+}
+
/* Given a pointer type t, allocate a new pdb_type and add it to the
* type list. */
static struct pdb_type *
@@ -1837,6 +2283,9 @@ find_type (tree t)
case ARRAY_TYPE:
return find_type_array (t);
+ case ENUMERAL_TYPE:
+ return find_type_enum (t);
+
case FUNCTION_TYPE:
case METHOD_TYPE:
return find_type_function (t);
diff --git a/gcc/pdbout.h b/gcc/pdbout.h
index 3e5ef8ca1a7..85ce1f68ee5 100644
--- a/gcc/pdbout.h
+++ b/gcc/pdbout.h
@@ -36,7 +36,10 @@
#define S_DEFRANGE_REGISTER 0x1141
#define S_DEFRANGE_REGISTER_REL 0x1145
#define LF_ARGLIST 0x1201
+#define LF_FIELDLIST 0x1203
+#define LF_ENUMERATE 0x1502
#define LF_ARRAY 0x1503
+#define LF_ENUM 0x1507
#define LF_CHAR 0x8000
#define LF_SHORT 0x8001
#define LF_USHORT 0x8002
@@ -134,6 +137,46 @@ struct pdb_global_var
struct pdb_type *type;
};
+// CV_fldattr_t in cvinfo
+#define CV_FLDATTR_PRIVATE 0x0001
+#define CV_FLDATTR_PROTECTED 0x0002
+#define CV_FLDATTR_PUBLIC 0x0003
+#define CV_FLDATTR_VIRTUAL 0x0004
+#define CV_FLDATTR_STATIC 0x0008
+#define CV_FLDATTR_FRIEND 0x000C
+#define CV_FLDATTR_INTRO 0x0010
+#define CV_FLDATTR_PUREVIRT 0x0014
+#define CV_FLDATTR_PUREINTRO 0x0018
+#define CV_FLDATTR_PSEUDO 0x0020
+#define CV_FLDATTR_NOINHERIT 0x0040
+#define CV_FLDATTR_NOCONSTRUCT 0x0080
+#define CV_FLDATTR_COMPGENX 0x0100
+#define CV_FLDATTR_SEALED 0x0200
+
+struct pdb_fieldlist_entry
+{
+ uint16_t cv_type;
+ struct pdb_type *type;
+ uint16_t offset;
+ uint16_t fld_attr;
+ int64_t value;
+ char *name;
+};
+
+struct pdb_fieldlist
+{
+ unsigned int count;
+ struct pdb_fieldlist_entry entries[1];
+};
+
+struct pdb_enum
+{
+ unsigned int count;
+ struct pdb_type *type;
+ struct pdb_type *field_type;
+ char *name;
+};
+
// from CV_ptrtype_e in cvdump
#define CV_PTR_NEAR32 0x0a
#define CV_PTR_64 0x0c
--
2.26.2
