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dump.c
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dump.c
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/*
saving and restoring system images
*/
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#ifdef __WIN32__
#include <malloc.h>
#endif
#include "julia.h"
#include "builtin_proto.h"
#include "newobj_internal.h"
#include "jltypes_internal.h"
static htable_t ser_tag;
static htable_t deser_tag;
static htable_t backref_table;
static htable_t fptr_to_id;
static htable_t id_to_fptr;
static const ptrint_t LongSymbol_tag = 23;
static const ptrint_t LongTuple_tag = 24;
static const ptrint_t LongExpr_tag = 25;
static const ptrint_t LiteralVal_tag = 26;
static const ptrint_t SmallInt64_tag = 27;
static const ptrint_t IdTable_tag = 28;
static const ptrint_t Null_tag = 254;
static const ptrint_t BackRef_tag = 255;
static ptrint_t VALUE_TAGS;
// pointers to non-AST-ish objects in a compressed tree
static jl_array_t *tree_literal_values=NULL;
static jl_value_t *jl_idtable_type=NULL;
// queue of types to cache
static jl_array_t *tagtype_list=NULL;
#define write_uint8(s, n) ios_putc((n), (s))
#define read_uint8(s) ((uint8_t)ios_getc(s))
#define write_int8(s, n) write_uint8(s, n)
#define read_int8(s) read_uint8(s)
static void write_int32(ios_t *s, int32_t i)
{
write_uint8(s, i & 0xff);
write_uint8(s, (i>> 8) & 0xff);
write_uint8(s, (i>>16) & 0xff);
write_uint8(s, (i>>24) & 0xff);
}
static int32_t read_int32(ios_t *s)
{
int b0 = read_uint8(s);
int b1 = read_uint8(s);
int b2 = read_uint8(s);
int b3 = read_uint8(s);
return b0 | (b1<<8) | (b2<<16) | (b3<<24);
}
static void write_uint16(ios_t *s, uint16_t i)
{
write_uint8(s, i & 0xff);
write_uint8(s, (i>> 8) & 0xff);
}
static uint16_t read_uint16(ios_t *s)
{
int b0 = read_uint8(s);
int b1 = read_uint8(s);
return b0 | (b1<<8);
}
static void writetag(ios_t *s, void *v)
{
write_uint8(s, (uint8_t)(ptrint_t)ptrhash_get(&ser_tag, v));
}
static void write_as_tag(ios_t *s, uint8_t tag)
{
if (tag < VALUE_TAGS) {
write_uint8(s, 0);
}
write_uint8(s, tag);
}
// --- serialize ---
#define jl_serialize_value(s, v) jl_serialize_value_(s,(jl_value_t*)(v))
static void jl_serialize_value_(ios_t *s, jl_value_t *v);
static void jl_serialize_fptr(ios_t *s, void *fptr)
{
void **pbp = ptrhash_bp(&fptr_to_id, fptr);
if (*pbp == HT_NOTFOUND)
jl_error("unknown function pointer");
write_int32(s, *(ptrint_t*)pbp);
}
static void jl_serialize_tag_type(ios_t *s, jl_value_t *v)
{
if (jl_is_struct_type(v)) {
writetag(s, (jl_value_t*)jl_struct_kind);
jl_serialize_value(s, jl_struct_kind);
write_uint16(s, ((jl_struct_type_t*)v)->names->length);
write_int32(s, ((jl_struct_type_t*)v)->uid);
write_int32(s, ((jl_struct_type_t*)v)->size);
write_int32(s, ((jl_struct_type_t*)v)->alignment);
size_t nf = ((jl_struct_type_t*)v)->names->length;
ios_write(s, (char*)&((jl_struct_type_t*)v)->fields[0], nf*sizeof(jl_fielddesc_t));
jl_serialize_value(s, ((jl_struct_type_t*)v)->name);
jl_serialize_value(s, ((jl_struct_type_t*)v)->parameters);
jl_serialize_value(s, ((jl_struct_type_t*)v)->super);
jl_serialize_value(s, ((jl_struct_type_t*)v)->names);
jl_serialize_value(s, ((jl_struct_type_t*)v)->types);
jl_serialize_value(s, ((jl_struct_type_t*)v)->ctor_factory);
jl_serialize_value(s, ((jl_struct_type_t*)v)->env);
jl_serialize_value(s, ((jl_struct_type_t*)v)->linfo);
jl_serialize_fptr(s, ((jl_struct_type_t*)v)->fptr);
}
else if (jl_is_bits_type(v)) {
writetag(s, jl_struct_kind);
jl_serialize_value(s, jl_bits_kind);
if (v == (jl_value_t*)jl_int32_type)
write_uint8(s, 2);
else if (v == (jl_value_t*)jl_bool_type)
write_uint8(s, 3);
else if (v == (jl_value_t*)jl_int64_type)
write_uint8(s, 4);
else
write_uint8(s, 0);
jl_serialize_value(s, ((jl_tag_type_t*)v)->name);
jl_serialize_value(s, ((jl_bits_type_t*)v)->parameters);
write_int32(s, ((jl_bits_type_t*)v)->nbits);
jl_serialize_value(s, ((jl_bits_type_t*)v)->super);
write_int32(s, ((jl_bits_type_t*)v)->uid);
}
else {
assert(jl_is_tag_type(v));
writetag(s, jl_tag_kind);
jl_serialize_value(s, ((jl_tag_type_t*)v)->name);
jl_serialize_value(s, ((jl_tag_type_t*)v)->parameters);
jl_serialize_value(s, ((jl_tag_type_t*)v)->super);
}
}
static void jl_serialize_module(ios_t *s, jl_module_t *m)
{
// set on every startup; don't save
jl_sym_t *jhsym = jl_symbol("JULIA_HOME");
writetag(s, jl_module_type);
jl_serialize_value(s, m->name);
jl_serialize_value(s, m->parent);
size_t i;
void **table = m->bindings.table;
for(i=1; i < m->bindings.size; i+=2) {
if (table[i] != HT_NOTFOUND &&
!(table[i-1] == jhsym && m == jl_core_module)) {
jl_binding_t *b = (jl_binding_t*)table[i];
if (!(b->owner != m && m == jl_main_module)) {
jl_serialize_value(s, b->name);
jl_serialize_value(s, b->value);
jl_serialize_value(s, b->type);
jl_serialize_value(s, b->owner);
write_int8(s, (b->constp<<2) | (b->exportp<<1) | (b->imported));
}
}
}
jl_serialize_value(s, NULL);
if (m == jl_main_module) {
write_int32(s, 1);
jl_serialize_value(s, (jl_value_t*)jl_core_module);
}
else {
write_int32(s, m->usings.len);
for(i=0; i < m->usings.len; i++) {
jl_serialize_value(s, (jl_value_t*)m->usings.items[i]);
}
}
}
static int is_ast_node(jl_value_t *v)
{
return jl_is_symbol(v) || jl_is_expr(v) ||
jl_typeis(v, jl_array_any_type) || jl_is_tuple(v) ||
jl_is_union_type(v) || jl_is_int32(v) || jl_is_int64(v) ||
jl_is_symbolnode(v) || jl_is_bool(v) || jl_is_typevar(v) ||
jl_is_topnode(v) || jl_is_quotenode(v) || jl_is_gotonode(v) ||
jl_is_labelnode(v) || jl_is_linenode(v) || jl_is_getfieldnode(v);
}
static int literal_val_id(jl_value_t *v)
{
for(int i=0; i < jl_array_len(tree_literal_values); i++) {
if (jl_cellref(tree_literal_values,i) == v)
return i;
}
jl_cell_1d_push(tree_literal_values, v);
return jl_array_len(tree_literal_values)-1;
}
static void jl_serialize_value_(ios_t *s, jl_value_t *v)
{
if (v == NULL) {
write_uint8(s, Null_tag);
return;
}
void **bp = ptrhash_bp(&ser_tag, v);
if (*bp != HT_NOTFOUND) {
write_as_tag(s, (uint8_t)(ptrint_t)*bp);
return;
}
if (tree_literal_values) {
// compressing tree
if (!is_ast_node(v)) {
writetag(s, (jl_value_t*)LiteralVal_tag);
write_uint16(s, literal_val_id(v));
return;
}
}
else {
bp = ptrhash_bp(&backref_table, v);
if (*bp != HT_NOTFOUND) {
write_uint8(s, BackRef_tag);
write_int32(s, (ptrint_t)*bp);
return;
}
ptrhash_put(&backref_table, v, (void*)(ptrint_t)ios_pos(s));
}
size_t i;
if (jl_is_tuple(v)) {
size_t l = jl_tuple_len(v);
if (l <= 255) {
writetag(s, jl_tuple_type);
write_uint8(s, (uint8_t)l);
}
else {
writetag(s, (jl_value_t*)LongTuple_tag);
write_int32(s, l);
}
for(i=0; i < l; i++) {
jl_serialize_value(s, jl_tupleref(v, i));
}
}
else if (jl_is_symbol(v)) {
size_t l = strlen(((jl_sym_t*)v)->name);
if (l <= 255) {
writetag(s, jl_symbol_type);
write_uint8(s, (uint8_t)l);
}
else {
writetag(s, (jl_value_t*)LongSymbol_tag);
write_int32(s, l);
}
ios_write(s, ((jl_sym_t*)v)->name, l);
}
else if (jl_is_array(v)) {
jl_array_t *ar = (jl_array_t*)v;
writetag(s, (jl_value_t*)jl_array_type);
jl_serialize_value(s, jl_typeof(ar));
jl_value_t *elty = jl_tparam0(jl_typeof(ar));
for (i=0; i < ar->ndims; i++)
jl_serialize_value(s, jl_box_long(jl_array_dim(ar,i)));
if (jl_is_bits_type(elty)) {
size_t tot = jl_array_len(ar) * ar->elsize;
ios_write(s, jl_array_data(ar), tot);
}
else {
for(i=0; i < jl_array_len(ar); i++) {
jl_serialize_value(s, jl_cellref(v, i));
}
}
}
else if (jl_is_expr(v)) {
jl_expr_t *e = (jl_expr_t*)v;
size_t l = jl_array_len(e->args);
if (l <= 255) {
writetag(s, jl_expr_type);
write_uint8(s, (uint8_t)l);
}
else {
writetag(s, (jl_value_t*)LongExpr_tag);
write_int32(s, l);
}
jl_serialize_value(s, e->head);
jl_serialize_value(s, e->etype);
for(i=0; i < l; i++) {
jl_serialize_value(s, jl_exprarg(e, i));
}
}
else if (jl_is_some_tag_type(v)) {
jl_serialize_tag_type(s, v);
}
else if (jl_is_typevar(v)) {
writetag(s, jl_tvar_type);
jl_serialize_value(s, ((jl_tvar_t*)v)->name);
jl_serialize_value(s, ((jl_tvar_t*)v)->lb);
jl_serialize_value(s, ((jl_tvar_t*)v)->ub);
write_int8(s, ((jl_tvar_t*)v)->bound);
}
else if (jl_is_function(v)) {
writetag(s, jl_function_type);
jl_function_t *f = (jl_function_t*)v;
jl_serialize_value(s, (jl_value_t*)f->linfo);
jl_serialize_value(s, f->env);
if (f->linfo && f->linfo->ast &&
(jl_is_expr(f->linfo->ast) || jl_is_tuple(f->linfo->ast)) &&
f->fptr != &jl_trampoline) {
jl_serialize_fptr(s, &jl_trampoline);
}
else {
jl_serialize_fptr(s, f->fptr);
}
}
else if (jl_is_lambda_info(v)) {
writetag(s, jl_lambda_info_type);
jl_lambda_info_t *li = (jl_lambda_info_t*)v;
jl_serialize_value(s, li->ast);
jl_serialize_value(s, (jl_value_t*)li->sparams);
// don't save cached type info for code in the Core module, because
// it might reference types in the old Base module.
if (li->module == jl_core_module)
jl_serialize_value(s, (jl_value_t*)jl_null);
else
jl_serialize_value(s, (jl_value_t*)li->tfunc);
jl_serialize_value(s, (jl_value_t*)li->name);
jl_serialize_value(s, (jl_value_t*)li->specTypes);
jl_serialize_value(s, (jl_value_t*)li->specializations);
write_int8(s, li->inferred);
jl_serialize_value(s, (jl_value_t*)li->file);
write_int32(s, li->line);
jl_serialize_value(s, (jl_value_t*)li->module);
}
else if (jl_typeis(v, jl_module_type)) {
jl_serialize_module(s, (jl_module_t*)v);
}
else if (jl_typeis(v, jl_task_type)) {
jl_error("Task cannot be serialized");
}
else {
jl_value_t *t = (jl_value_t*)jl_typeof(v);
if (jl_is_bits_type(t)) {
void *data = jl_bits_data(v);
if (t == (jl_value_t*)jl_int64_type &&
*(int64_t*)data >= S32_MIN && *(int64_t*)data <= S32_MAX) {
writetag(s, (jl_value_t*)SmallInt64_tag);
write_int32(s, (int32_t)*(int64_t*)data);
}
else {
int nb = ((jl_bits_type_t*)t)->nbits;
writetag(s, jl_bits_kind);
jl_serialize_value(s, t);
ios_write(s, data, nb/8);
}
}
else if (jl_is_struct_type(t)) {
if (t == jl_idtable_type)
writetag(s, (jl_value_t*)IdTable_tag);
else
writetag(s, jl_struct_kind);
jl_serialize_value(s, t);
if (t == jl_idtable_type) {
jl_array_t *data = (jl_array_t*)jl_get_nth_field(v, 0);
jl_value_t **d = (jl_value_t**)data->data;
size_t i;
for(i=0; i < data->length; i+=2) {
if (d[i+1] != NULL) {
jl_serialize_value(s, d[i+1]);
jl_serialize_value(s, d[i]);
}
}
jl_serialize_value(s, NULL);
}
else {
jl_struct_type_t *st = (jl_struct_type_t*)t;
size_t nf = jl_tuple_len(st->names);
size_t i;
for(i=0; i < nf; i++) {
jl_serialize_value(s, jl_get_nth_field(v, i));
}
}
}
else {
assert(0);
}
}
}
// --- deserialize ---
static jl_value_t *jl_deserialize_value(ios_t *s);
static jl_fptr_t jl_deserialize_fptr(ios_t *s)
{
int fptr = read_int32(s);
if (fptr == 0)
return NULL;
void **pbp = ptrhash_bp(&id_to_fptr, (void*)(ptrint_t)fptr);
if (*pbp == HT_NOTFOUND)
jl_error("unknown function pointer ID");
return *(jl_fptr_t*)pbp;
}
static jl_value_t *jl_deserialize_tag_type(ios_t *s, jl_struct_type_t *kind, int pos)
{
if (kind == jl_struct_kind) {
uint16_t nf = read_uint16(s);
jl_struct_type_t *st = jl_new_uninitialized_struct_type(nf);
st->uid = read_int32(s);
st->size = read_int32(s);
st->alignment = read_int32(s);
ios_read(s, (char*)&st->fields[0], nf*sizeof(jl_fielddesc_t));
st->instance = NULL;
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, st);
st->name = (jl_typename_t*)jl_deserialize_value(s);
st->parameters = (jl_tuple_t*)jl_deserialize_value(s);
st->super = (jl_tag_type_t*)jl_deserialize_value(s);
st->names = (jl_tuple_t*)jl_deserialize_value(s);
st->types = (jl_tuple_t*)jl_deserialize_value(s);
st->ctor_factory = jl_deserialize_value(s);
st->env = jl_deserialize_value(s);
st->linfo = (jl_lambda_info_t*)jl_deserialize_value(s);
st->fptr = jl_deserialize_fptr(s);
if (st->name == jl_array_type->name) {
// builtin types are not serialized, so their caches aren't
// explicitly saved. so we reconstruct the caches of builtin
// parametric types here.
jl_cell_1d_push(tagtype_list, (jl_value_t*)st);
}
return (jl_value_t*)st;
}
else if (kind == jl_bits_kind) {
int form = read_uint8(s);
jl_bits_type_t *bt;
if (form == 2)
bt = jl_int32_type;
else if (form == 3)
bt = jl_bool_type;
else if (form == 4)
bt = jl_int64_type;
else
bt = (jl_bits_type_t*)newobj((jl_type_t*)jl_bits_kind,
BITS_TYPE_NW);
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, bt);
bt->name = (jl_typename_t*)jl_deserialize_value(s);
bt->parameters = (jl_tuple_t*)jl_deserialize_value(s);
size_t nbits = read_int32(s);
bt->nbits = nbits;
bt->fptr = NULL;
bt->env = NULL;
bt->linfo = NULL;
bt->super = (jl_tag_type_t*)jl_deserialize_value(s);
bt->uid = read_int32(s);
if (bt->name == jl_pointer_type->name) {
jl_cell_1d_push(tagtype_list, (jl_value_t*)bt);
}
return (jl_value_t*)bt;
}
else {
assert(kind == jl_tag_kind);
jl_tag_type_t *tt =
(jl_tag_type_t*)newobj((jl_type_t*)jl_tag_kind, TAG_TYPE_NW);
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, tt);
tt->name = (jl_typename_t*)jl_deserialize_value(s);
tt->parameters = (jl_tuple_t*)jl_deserialize_value(s);
tt->super = (jl_tag_type_t*)jl_deserialize_value(s);
tt->fptr = NULL;
tt->env = NULL;
tt->linfo = NULL;
if (tt->name == jl_type_type->name || tt->name == jl_seq_type->name ||
tt->name == jl_abstractarray_type->name) {
jl_cell_1d_push(tagtype_list, (jl_value_t*)tt);
}
return (jl_value_t*)tt;
}
assert(0);
return NULL;
}
jl_array_t *jl_eqtable_put(jl_array_t *h, void *key, void *val);
static jl_value_t *jl_deserialize_value(ios_t *s)
{
int pos = ios_pos(s);
int32_t tag = read_uint8(s);
if (tag == Null_tag)
return NULL;
if (tag == 0) {
tag = read_uint8(s);
jl_value_t *v = ptrhash_get(&deser_tag, (void*)(ptrint_t)tag);
assert(v != HT_NOTFOUND);
return v;
}
if (tag == BackRef_tag) {
assert(tree_literal_values == NULL);
ptrint_t offs = read_int32(s);
void **bp = ptrhash_bp(&backref_table, (void*)(ptrint_t)offs);
assert(*bp != HT_NOTFOUND);
return (jl_value_t*)*bp;
}
jl_value_t *vtag=(jl_value_t*)ptrhash_get(&deser_tag,(void*)(ptrint_t)tag);
if (tag >= VALUE_TAGS) {
return vtag;
}
int usetable = (tree_literal_values == NULL);
size_t i;
if (vtag == (jl_value_t*)jl_tuple_type ||
vtag == (jl_value_t*)LongTuple_tag) {
size_t len;
if (vtag == (jl_value_t*)jl_tuple_type)
len = read_uint8(s);
else
len = read_int32(s);
jl_tuple_t *tu = jl_alloc_tuple_uninit(len);
if (usetable)
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, (jl_value_t*)tu);
for(i=0; i < len; i++)
jl_tupleset(tu, i, jl_deserialize_value(s));
return (jl_value_t*)tu;
}
else if (vtag == (jl_value_t*)jl_symbol_type ||
vtag == (jl_value_t*)LongSymbol_tag) {
size_t len;
if (vtag == (jl_value_t*)jl_symbol_type)
len = read_uint8(s);
else
len = read_int32(s);
char *name = alloca(len+1);
ios_read(s, name, len);
name[len] = '\0';
jl_value_t *s = (jl_value_t*)jl_symbol(name);
if (usetable)
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, s);
return s;
}
else if (vtag == (jl_value_t*)jl_array_type) {
jl_value_t *aty = jl_deserialize_value(s);
jl_value_t *elty = jl_tparam0(aty);
int16_t ndims = jl_unbox_long(jl_tparam1(aty));
size_t *dims = alloca(ndims*sizeof(size_t));
for(i=0; i < ndims; i++)
dims[i] = jl_unbox_long(jl_deserialize_value(s));
jl_array_t *a = jl_new_array_((jl_type_t*)aty, ndims, dims);
if (usetable)
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, (jl_value_t*)a);
if (jl_is_bits_type(elty)) {
size_t tot = jl_array_len(a) * a->elsize;
ios_read(s, jl_array_data(a), tot);
}
else {
for(i=0; i < jl_array_len(a); i++) {
((jl_value_t**)a->data)[i] = jl_deserialize_value(s);
}
}
return (jl_value_t*)a;
}
else if (vtag == (jl_value_t*)jl_expr_type ||
vtag == (jl_value_t*)LongExpr_tag) {
size_t len;
if (vtag == (jl_value_t*)jl_expr_type)
len = read_uint8(s);
else
len = read_int32(s);
jl_expr_t *e = jl_exprn((jl_sym_t*)jl_deserialize_value(s), len);
if (usetable)
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, (jl_value_t*)e);
e->etype = jl_deserialize_value(s);
for(i=0; i < len; i++) {
jl_cellset(e->args, i, jl_deserialize_value(s));
}
return (jl_value_t*)e;
}
else if (vtag == (jl_value_t*)LiteralVal_tag) {
return jl_cellref(tree_literal_values, read_uint16(s));
}
else if (vtag == (jl_value_t*)jl_tvar_type) {
jl_tvar_t *tv = (jl_tvar_t*)newobj((jl_type_t*)jl_tvar_type, 4);
if (usetable)
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, tv);
tv->name = (jl_sym_t*)jl_deserialize_value(s);
tv->lb = jl_deserialize_value(s);
tv->ub = jl_deserialize_value(s);
tv->bound = read_int8(s);
return (jl_value_t*)tv;
}
else if (vtag == (jl_value_t*)jl_function_type) {
jl_function_t *f =
(jl_function_t*)newobj((jl_type_t*)jl_function_type, 3);
if (usetable)
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, f);
f->linfo = (jl_lambda_info_t*)jl_deserialize_value(s);
f->env = jl_deserialize_value(s);
f->fptr = jl_deserialize_fptr(s);
return (jl_value_t*)f;
}
else if (vtag == (jl_value_t*)jl_lambda_info_type) {
jl_lambda_info_t *li =
(jl_lambda_info_t*)newobj((jl_type_t*)jl_lambda_info_type,
LAMBDA_INFO_NW);
if (usetable)
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, li);
li->ast = jl_deserialize_value(s);
li->sparams = (jl_tuple_t*)jl_deserialize_value(s);
li->tfunc = jl_deserialize_value(s);
li->name = (jl_sym_t*)jl_deserialize_value(s);
li->specTypes = (jl_tuple_t*)jl_deserialize_value(s);
li->specializations = (jl_array_t*)jl_deserialize_value(s);
li->inferred = read_int8(s);
li->file = jl_deserialize_value(s);
li->line = read_int32(s);
li->module = (jl_module_t*)jl_deserialize_value(s);
li->fptr = &jl_trampoline;
li->roots = NULL;
li->functionObject = NULL;
li->cFunctionObject = NULL;
li->inInference = 0;
li->inCompile = 0;
li->unspecialized = NULL;
return (jl_value_t*)li;
}
else if (vtag == (jl_value_t*)jl_module_type) {
jl_sym_t *mname = (jl_sym_t*)jl_deserialize_value(s);
jl_module_t *m = jl_new_module(mname);
if (usetable)
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, m);
m->parent = (jl_module_t*)jl_deserialize_value(s);
while (1) {
jl_value_t *name = jl_deserialize_value(s);
if (name == NULL)
break;
jl_binding_t *b = jl_get_binding_wr(m, (jl_sym_t*)name);
b->value = jl_deserialize_value(s);
b->type = (jl_type_t*)jl_deserialize_value(s);
b->owner = (jl_module_t*)jl_deserialize_value(s);
int8_t flags = read_int8(s);
b->constp = (flags>>2) & 1;
b->exportp = (flags>>1) & 1;
b->imported = (flags) & 1;
}
size_t ni = read_int32(s);
for(size_t i=0; i < ni; i++) {
arraylist_push(&m->usings, jl_deserialize_value(s));
}
return (jl_value_t*)m;
}
else if (vtag == (jl_value_t*)SmallInt64_tag) {
jl_value_t *v = jl_box_int64(read_int32(s));
if (usetable)
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, v);
return v;
}
else if (vtag == (jl_value_t*)jl_bits_kind) {
jl_bits_type_t *bt = (jl_bits_type_t*)jl_deserialize_value(s);
int nby = bt->nbits/8;
char *data = alloca(nby);
ios_read(s, data, nby);
jl_value_t *v=NULL;
if (bt == jl_int32_type)
v = jl_box_int32(*(int32_t*)data);
else if (bt == jl_int64_type)
v = jl_box_int64(*(int64_t*)data);
else if (bt == jl_bool_type)
v = jl_box_bool(*(int8_t*)data);
else {
switch (bt->nbits) {
case 8: v = jl_box8 (bt, *(int8_t*) data); break;
case 16: v = jl_box16(bt, *(int16_t*)data); break;
case 32: v = jl_box32(bt, *(int32_t*)data); break;
case 64: v = jl_box64(bt, *(int64_t*)data); break;
default:
v = (jl_value_t*)allocobj(sizeof(void*)+nby);
v->type = (jl_type_t*)bt;
memcpy(jl_bits_data(v), data, nby);
}
}
if (usetable)
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, v);
return v;
}
else if (vtag == (jl_value_t*)jl_struct_kind || vtag == (jl_value_t*)IdTable_tag) {
jl_struct_type_t *typ = (jl_struct_type_t*)jl_deserialize_value(s);
if (typ == jl_struct_kind || typ == jl_bits_kind)
return jl_deserialize_tag_type(s, typ, pos);
size_t nf = jl_tuple_len(typ->names);
jl_value_t *v = jl_new_struct_uninit(typ);
if (usetable)
ptrhash_put(&backref_table, (void*)(ptrint_t)pos, v);
if (vtag == (jl_value_t*)IdTable_tag) {
jl_array_t *a = jl_alloc_cell_1d(32);
while (1) {
jl_value_t *val = jl_deserialize_value(s);
if (val == NULL)
break;
jl_value_t *key = jl_deserialize_value(s);
a = jl_eqtable_put(a, key, val);
}
jl_set_nth_field(v, 0, (jl_value_t*)a);
}
else {
for(i=0; i < nf; i++) {
jl_set_nth_field(v, i, jl_deserialize_value(s));
}
}
// TODO: put WeakRefs on the weak_refs list
return v;
}
else if (vtag == (jl_value_t*)jl_tag_kind) {
return jl_deserialize_tag_type(s, jl_tag_kind, pos);
}
assert(0);
return NULL;
}
// --- entry points ---
DLLEXPORT
void jl_save_system_image(char *fname)
{
jl_gc_collect();
jl_gc_collect();
int en = jl_gc_is_enabled();
jl_gc_disable();
htable_reset(&backref_table, 50000);
ios_t f;
ios_file(&f, fname, 1, 1, 1, 1);
// orphan old Base module if present
jl_base_module = (jl_module_t*)jl_get_global(jl_main_module, jl_symbol("Base"));
// delete cached slow ASCIIString constructor if present
jl_methtable_t *mt = jl_gf_mtable((jl_function_t*)jl_ascii_string_type);
jl_array_t *spec = mt->defs->func->linfo->specializations;
if (spec->length > 0 &&
((jl_lambda_info_t*)jl_cellref(spec,0))->inferred == 0) {
mt->cache = JL_NULL;
mt->cache_arg1 = JL_NULL;
mt->defs->func->linfo->tfunc = (jl_value_t*)jl_null;
mt->defs->func->linfo->specializations = NULL;
}
jl_idtable_type = jl_get_global(jl_base_module, jl_symbol("ObjectIdDict"));
jl_serialize_value(&f, jl_array_type->env);
jl_serialize_value(&f, jl_main_module);
write_int32(&f, jl_get_t_uid_ctr());
write_int32(&f, jl_get_gs_ctr());
htable_reset(&backref_table, 0);
ios_close(&f);
if (en) jl_gc_enable();
}
extern jl_function_t *jl_typeinf_func;
extern int jl_boot_file_loaded;
extern void jl_get_builtin_hooks(void);
extern void jl_get_system_hooks(void);
DLLEXPORT
void jl_restore_system_image(char *fname)
{
ios_t f;
char *fpath = fname;
if (ios_file(&f, fpath, 1, 0, 0, 0) == NULL) {
JL_PRINTF(JL_STDERR, "system image file not found\n");
jl_exit(1);
}
#ifdef JL_GC_MARKSWEEP
int en = jl_gc_is_enabled();
jl_gc_disable();
#endif
tagtype_list = jl_alloc_cell_1d(0);
jl_array_type->env = jl_deserialize_value(&f);
jl_main_module = (jl_module_t*)jl_deserialize_value(&f);
jl_core_module = (jl_module_t*)jl_get_global(jl_main_module,
jl_symbol("Core"));
jl_base_module = (jl_module_t*)jl_get_global(jl_main_module,
jl_symbol("Base"));
jl_current_module = jl_base_module; // run start_image in Base
// cache builtin parametric types
for(int i=0; i < jl_array_len(tagtype_list); i++) {
jl_value_t *v = jl_cellref(tagtype_list, i);
uint32_t uid=0;
if (jl_is_struct_type(v))
uid = ((jl_struct_type_t*)v)->uid;
else if (jl_is_bits_type(v))
uid = ((jl_bits_type_t*)v)->uid;
jl_cache_type_((jl_tag_type_t*)v);
if (jl_is_struct_type(v))
((jl_struct_type_t*)v)->uid = uid;
else if (jl_is_bits_type(v))
((jl_bits_type_t*)v)->uid = uid;
}
jl_get_builtin_hooks();
jl_get_system_hooks();
jl_boot_file_loaded = 1;
jl_typeinf_func = (jl_function_t*)jl_get_global(jl_base_module,
jl_symbol("typeinf_ext"));
jl_init_box_caches();
jl_set_t_uid_ctr(read_int32(&f));
jl_set_gs_ctr(read_int32(&f));
htable_reset(&backref_table, 0);
ios_close(&f);
if (fpath != fname) free(fpath);
#ifdef JL_GC_MARKSWEEP
if (en) jl_gc_enable();
#endif
}
DLLEXPORT
jl_value_t *jl_compress_ast(jl_lambda_info_t *li, jl_value_t *ast)
{
ios_t dest;
ios_mem(&dest, 0);
int en = jl_gc_is_enabled();
jl_gc_disable();
if (li->roots == NULL)
li->roots = jl_alloc_cell_1d(0);
tree_literal_values = li->roots;
jl_serialize_value(&dest, ast);
//JL_PRINTF(JL_STDERR, "%d bytes, %d values\n", dest.size, vals->length);
jl_value_t *v = (jl_value_t*)jl_takebuf_array(&dest);
if (jl_array_len(tree_literal_values) == 0) {
tree_literal_values = (jl_array_t*)jl_an_empty_cell;
li->roots = NULL;
}
v = (jl_value_t*)jl_tuple(4, v, tree_literal_values,
jl_lam_body((jl_expr_t*)ast)->etype,
jl_lam_capt((jl_expr_t*)ast));
tree_literal_values = NULL;
if (en)
jl_gc_enable();
return v;
}
DLLEXPORT
jl_value_t *jl_uncompress_ast(jl_tuple_t *data)
{
jl_array_t *bytes = (jl_array_t*)jl_tupleref(data, 0);
tree_literal_values = (jl_array_t*)jl_tupleref(data, 1);
ios_t src;
ios_mem(&src, 0);
ios_setbuf(&src, bytes->data, jl_array_len(bytes), 0);
src.size = jl_array_len(bytes);
int en = jl_gc_is_enabled();
jl_gc_disable();
jl_gc_ephemeral_on();
jl_value_t *v = jl_deserialize_value(&src);
jl_gc_ephemeral_off();
if (en)
jl_gc_enable();
tree_literal_values = NULL;
return v;
}
// --- init ---
void jl_init_serializer(void)
{
htable_new(&ser_tag, 0);
htable_new(&deser_tag, 0);
htable_new(&fptr_to_id, 0);
htable_new(&id_to_fptr, 0);
htable_new(&backref_table, 50000);
void *tags[] = { jl_symbol_type, jl_tag_kind, jl_bits_kind, jl_struct_kind,
jl_function_type, jl_tuple_type, jl_array_type,
jl_expr_type, (void*)LongSymbol_tag, (void*)LongTuple_tag,
(void*)LongExpr_tag, (void*)LiteralVal_tag,
(void*)SmallInt64_tag, (void*)IdTable_tag,
jl_module_type, jl_tvar_type, jl_lambda_info_type,
jl_null, jl_false, jl_true, jl_any_type, jl_symbol("Any"),
jl_symbol("Array"), jl_symbol("TypeVar"),
jl_symbol("FuncKind"), jl_symbol("Box"),
jl_symbol("apply"),
lambda_sym, body_sym, return_sym, call_sym, colons_sym,
null_sym, goto_ifnot_sym, assign_sym,
jl_symbol("a"), jl_symbol("b"), jl_symbol("c"),
jl_symbol("d"), jl_symbol("e"), jl_symbol("f"),
jl_symbol("g"), jl_symbol("h"), jl_symbol("i"),
jl_symbol("j"), jl_symbol("k"), jl_symbol("l"),
jl_symbol("m"), jl_symbol("n"), jl_symbol("o"),
jl_symbol("p"), jl_symbol("q"), jl_symbol("r"),
jl_symbol("s"), jl_symbol("t"), jl_symbol("u"),
jl_symbol("v"), jl_symbol("w"), jl_symbol("x"),
jl_symbol("y"), jl_symbol("z"),
jl_symbol("A"), jl_symbol("B"), jl_symbol("C"),
jl_symbol("M"), jl_symbol("I"), jl_symbol("N"),
jl_symbol("T"), jl_symbol("S"),
jl_symbol("X"), jl_symbol("Y"),
jl_symbol("add_int"), jl_symbol("sub_int"),
jl_symbol("mul_int"),
jl_symbol("add_float"), jl_symbol("sub_float"),
jl_symbol("mul_float"), jl_symbol("ccall"),
jl_symbol("box"), jl_symbol("unbox"),
jl_symbol("eq_int"), jl_symbol("slt_int"),
jl_symbol("sle_int"), jl_symbol("ne_int"),
jl_symbol("arrayset"), jl_symbol("arrayref"),
jl_symbol("arraylen"),
jl_symbol("convert"), jl_symbol("typeassert"),
jl_symbol("getfield"), jl_symbol("setfield"),
jl_symbol("tupleref"), jl_symbol("tuplelen"),
jl_symbol("apply_type"), tuple_sym,
jl_box_int32(0), jl_box_int32(1), jl_box_int32(2),
jl_box_int32(3), jl_box_int32(4), jl_box_int32(5),
jl_box_int32(6), jl_box_int32(7), jl_box_int32(8),
jl_box_int32(9), jl_box_int32(10), jl_box_int32(11),
jl_box_int32(12), jl_box_int32(13), jl_box_int32(14),
jl_box_int32(15), jl_box_int32(16), jl_box_int32(17),
jl_box_int32(18), jl_box_int32(19), jl_box_int32(20),
jl_box_int32(21), jl_box_int32(22), jl_box_int32(23),
jl_box_int32(24), jl_box_int32(25), jl_box_int32(26),
jl_box_int32(27), jl_box_int32(28), jl_box_int32(29),
jl_box_int32(30), jl_box_int32(31), jl_box_int32(32),
#ifndef __LP64__
jl_box_int32(33), jl_box_int32(34), jl_box_int32(35),
jl_box_int32(36), jl_box_int32(37), jl_box_int32(38),
jl_box_int32(39), jl_box_int32(40), jl_box_int32(41),
jl_box_int32(42), jl_box_int32(43), jl_box_int32(44),
jl_box_int32(45), jl_box_int32(46), jl_box_int32(47),
jl_box_int32(48), jl_box_int32(49), jl_box_int32(50),
jl_box_int32(51), jl_box_int32(52), jl_box_int32(53),
jl_box_int32(54), jl_box_int32(55), jl_box_int32(56),
jl_box_int32(57), jl_box_int32(58), jl_box_int32(59),
jl_box_int32(60), jl_box_int32(61), jl_box_int32(62),
jl_box_int32(63), jl_box_int32(64),
#endif
jl_box_int64(0), jl_box_int64(1), jl_box_int64(2),
jl_box_int64(3), jl_box_int64(4), jl_box_int64(5),
jl_box_int64(6), jl_box_int64(7), jl_box_int64(8),
jl_box_int64(9), jl_box_int64(10), jl_box_int64(11),
jl_box_int64(12), jl_box_int64(13), jl_box_int64(14),
jl_box_int64(15), jl_box_int64(16), jl_box_int64(17),
jl_box_int64(18), jl_box_int64(19), jl_box_int64(20),
jl_box_int64(21), jl_box_int64(22), jl_box_int64(23),
jl_box_int64(24), jl_box_int64(25), jl_box_int64(26),
jl_box_int64(27), jl_box_int64(28), jl_box_int64(29),
jl_box_int64(30), jl_box_int64(31), jl_box_int64(32),
#ifdef __LP64__
jl_box_int64(33), jl_box_int64(34), jl_box_int64(35),
jl_box_int64(36), jl_box_int64(37), jl_box_int64(38),
jl_box_int64(39), jl_box_int64(40), jl_box_int64(41),
jl_box_int64(42), jl_box_int64(43), jl_box_int64(44),
jl_box_int64(45), jl_box_int64(46), jl_box_int64(47),
jl_box_int64(48), jl_box_int64(49), jl_box_int64(50),
jl_box_int64(51), jl_box_int64(52), jl_box_int64(53),
jl_box_int64(54), jl_box_int64(55), jl_box_int64(56),
jl_box_int64(57), jl_box_int64(58), jl_box_int64(59),
jl_box_int64(60), jl_box_int64(61), jl_box_int64(62),
jl_box_int64(63), jl_box_int64(64),
#endif
jl_labelnode_type, jl_linenumbernode_type,
jl_gotonode_type, jl_quotenode_type, jl_topnode_type,
jl_type_type, jl_bottom_type, jl_pointer_type,
jl_seq_type, jl_ntuple_type, jl_abstractarray_type,
jl_box_type, jl_typector_type, jl_undef_type, jl_top_type,
jl_typename_type, jl_task_type, jl_union_kind,
jl_typetype_type, jl_typetype_tvar, jl_ANY_flag,
jl_array_any_type, jl_intrinsic_type, jl_method_type,
jl_methtable_type,
jl_symbol_type->name, jl_pointer_type->name,
jl_tag_kind->name, jl_union_kind->name, jl_bits_kind->name, jl_struct_kind->name,
jl_array_type->name, jl_expr_type->name,
jl_typename_type->name, jl_type_type->name, jl_methtable_type->name,
jl_method_type->name, jl_tvar_type->name,
jl_seq_type->name, jl_ntuple_type->name, jl_abstractarray_type->name,
jl_lambda_info_type->name, jl_module_type->name,
jl_box_type->name, jl_function_type->name,
jl_typector_type->name, jl_intrinsic_type->name, jl_undef_type->name,
jl_task_type->name,
jl_labelnode_type->name, jl_linenumbernode_type->name,
jl_gotonode_type->name, jl_quotenode_type->name,
jl_topnode_type->name,