https://github.com/JuliaLang/julia
Tip revision: 23fcd8437eb089edfb6f6ba015148b8b50c4b93e authored by Jeff Bezanson on 01 November 2021, 21:55:28 UTC
fix
fix
Tip revision: 23fcd84
dump.c
// This file is a part of Julia. License is MIT: https://julialang.org/license
/*
saving and restoring precompiled modules (.ji files)
*/
#include <stdlib.h>
#include <string.h>
#include "julia.h"
#include "julia_internal.h"
#include "julia_gcext.h"
#include "builtin_proto.h"
#include "serialize.h"
#ifndef _OS_WINDOWS_
#include <dlfcn.h>
#endif
#ifndef _COMPILER_MICROSOFT_
#include "valgrind.h"
#else
#define RUNNING_ON_VALGRIND 0
#endif
#include "julia_assert.h"
#ifdef __cplusplus
extern "C" {
#endif
// TODO: put WeakRefs on the weak_refs list during deserialization
// TODO: handle finalizers
// hash of definitions for predefined tagged object
static htable_t ser_tag;
// array of definitions for the predefined tagged object types
// (reverse of ser_tag)
static jl_value_t *deser_tag[256];
// hash of some common symbols, encoded as CommonSym_tag plus 1 byte
static htable_t common_symbol_tag;
static jl_value_t *deser_symbols[256];
// table of all objects that have been deserialized, indexed by pos
// (the order in the serializer stream). the low
// bit is reserved for flagging certain entries and pos is
// left shift by 1
static htable_t backref_table;
static int backref_table_numel;
static arraylist_t backref_list;
static htable_t new_code_instance_validate;
// list of (jl_value_t **loc, size_t pos) entries
// for anything that was flagged by the deserializer for later
// type-rewriting of some sort
static arraylist_t flagref_list;
static htable_t uniquing_table;
// list of (size_t pos, (void *f)(jl_value_t*)) entries
// for the serializer to mark values in need of rework by function f
// during deserialization later
static arraylist_t reinit_list;
// list of stuff that is being serialized
// This is not quite globally rooted, but we take care to only
// ever assigned rooted values here.
static jl_array_t *serializer_worklist JL_GLOBALLY_ROOTED;
// inverse of backedges tree
htable_t edges_map;
// list of requested ccallable signatures
static arraylist_t ccallable_list;
typedef struct {
ios_t *s;
jl_ptls_t ptls;
jl_array_t *loaded_modules_array;
} jl_serializer_state;
static jl_value_t *jl_idtable_type = NULL;
static jl_typename_t *jl_idtable_typename = NULL;
static jl_value_t *jl_bigint_type = NULL;
static int gmp_limb_size = 0;
static void write_uint64(ios_t *s, uint64_t i) JL_NOTSAFEPOINT
{
ios_write(s, (char*)&i, 8);
}
static void write_float64(ios_t *s, double x) JL_NOTSAFEPOINT
{
write_uint64(s, *((uint64_t*)&x));
}
void *jl_lookup_ser_tag(jl_value_t *v)
{
return ptrhash_get(&ser_tag, v);
}
void *jl_lookup_common_symbol(jl_value_t *v)
{
return ptrhash_get(&common_symbol_tag, v);
}
jl_value_t *jl_deser_tag(uint8_t tag)
{
return deser_tag[tag];
}
jl_value_t *jl_deser_symbol(uint8_t tag)
{
return deser_symbols[tag];
}
// --- serialize ---
#define jl_serialize_value(s, v) jl_serialize_value_((s), (jl_value_t*)(v), 0)
static void jl_serialize_value_(jl_serializer_state *s, jl_value_t *v, int as_literal) JL_GC_DISABLED;
static void jl_serialize_cnull(jl_serializer_state *s, jl_value_t *t)
{
backref_table_numel++;
write_uint8(s->s, TAG_CNULL);
jl_serialize_value(s, t);
}
static int module_in_worklist(jl_module_t *mod) JL_NOTSAFEPOINT
{
int i, l = jl_array_len(serializer_worklist);
for (i = 0; i < l; i++) {
jl_module_t *workmod = (jl_module_t*)jl_array_ptr_ref(serializer_worklist, i);
if (jl_is_module(workmod) && jl_is_submodule(mod, workmod))
return 1;
}
return 0;
}
// compute whether a type references something internal to worklist
// and thus could not have existed before deserialize
// and thus does not need delayed unique-ing
static int type_in_worklist(jl_datatype_t *dt) JL_NOTSAFEPOINT
{
if (module_in_worklist(dt->name->module))
return 1;
int i, l = jl_svec_len(dt->parameters);
for (i = 0; i < l; i++) {
jl_value_t *p = jl_unwrap_unionall(jl_tparam(dt, i));
// TODO: what about Union and TypeVar??
if (type_in_worklist((jl_datatype_t*)(jl_is_datatype(p) ? p : jl_typeof(p))))
return 1;
}
return 0;
}
static int type_recursively_external(jl_datatype_t *dt);
static int type_parameter_recursively_external(jl_value_t *p0) JL_NOTSAFEPOINT
{
if (!jl_is_concrete_type(p0))
return 0;
jl_datatype_t *p = (jl_datatype_t*)p0;
//while (jl_is_unionall(p)) {
// if (!type_parameter_recursively_external(((jl_unionall_t*)p)->var->lb))
// return 0;
// if (!type_parameter_recursively_external(((jl_unionall_t*)p)->var->ub))
// return 0;
// p = (jl_datatype_t*)((jl_unionall_t*)p)->body;
//}
if (module_in_worklist(p->name->module))
return 0;
if (p->name->wrapper != (jl_value_t*)p0) {
if (!type_recursively_external(p))
return 0;
}
return 1;
}
// returns true if all of the parameters are tag 6 or 7
static int type_recursively_external(jl_datatype_t *dt) JL_NOTSAFEPOINT
{
if (!dt->isconcretetype)
return 0;
if (jl_svec_len(dt->parameters) == 0)
return 1;
int i, l = jl_svec_len(dt->parameters);
for (i = 0; i < l; i++) {
if (!type_parameter_recursively_external(jl_tparam(dt, i)))
return 0;
}
return 1;
}
static void jl_serialize_datatype(jl_serializer_state *s, jl_datatype_t *dt) JL_GC_DISABLED
{
int tag = 0;
int internal = module_in_worklist(dt->name->module);
if (!internal && jl_unwrap_unionall(dt->name->wrapper) == (jl_value_t*)dt) {
tag = 6; // external primary type
}
else if (jl_is_tuple_type(dt) ? !dt->isconcretetype : dt->hasfreetypevars) {
tag = 0; // normal struct
}
else if (internal) {
if (jl_unwrap_unionall(dt->name->wrapper) == (jl_value_t*)dt) // comes up often since functions create types
tag = 5; // internal, and not in the typename cache
else
tag = 10; // anything else that's internal (just may need recaching)
}
else if (type_recursively_external(dt)) {
tag = 7; // external type that can be immediately recreated (with apply_type)
}
else if (type_in_worklist(dt)) {
tag = 11; // external, but definitely new (still needs caching, but not full unique-ing)
}
else {
// this is eligible for (and possibly requires) unique-ing later,
// so flag this in the backref table as special
uintptr_t *bp = (uintptr_t*)ptrhash_bp(&backref_table, dt);
assert(*bp != (uintptr_t)HT_NOTFOUND);
*bp |= 1;
tag = 12;
}
char *dtname = jl_symbol_name(dt->name->name);
size_t dtnl = strlen(dtname);
if (dtnl > 4 && strcmp(&dtname[dtnl - 4], "##kw") == 0 && !internal && tag != 0) {
/* XXX: yuck, this is horrible, but the auto-generated kw types from the serializer isn't a real type, so we *must* be very careful */
assert(tag == 6); // other struct types should never exist
tag = 9;
if (jl_type_type_mt->kwsorter != NULL && dt == (jl_datatype_t*)jl_typeof(jl_type_type_mt->kwsorter)) {
dt = jl_datatype_type; // any representative member with this MethodTable
}
else if (jl_nonfunction_mt->kwsorter != NULL && dt == (jl_datatype_t*)jl_typeof(jl_nonfunction_mt->kwsorter)) {
dt = jl_symbol_type; // any representative member with this MethodTable
}
else {
// search for the representative member of this MethodTable
jl_methtable_t *mt = dt->name->mt;
size_t l = strlen(jl_symbol_name(mt->name));
char *prefixed;
prefixed = (char*)malloc_s(l + 2);
prefixed[0] = '#';
strcpy(&prefixed[1], jl_symbol_name(mt->name));
// remove ##kw suffix
prefixed[l-3] = 0;
jl_sym_t *tname = jl_symbol(prefixed);
free(prefixed);
jl_value_t *primarydt = jl_get_global(mt->module, tname);
if (!primarydt)
primarydt = jl_get_global(mt->module, mt->name);
primarydt = jl_unwrap_unionall(primarydt);
assert(jl_is_datatype(primarydt));
assert(primarydt == (jl_value_t*)jl_any_type || jl_typeof(((jl_datatype_t*)primarydt)->name->mt->kwsorter) == (jl_value_t*)dt);
dt = (jl_datatype_t*)primarydt;
}
}
write_uint8(s->s, TAG_DATATYPE);
write_uint8(s->s, tag);
if (tag == 6 || tag == 7) {
// for tag==6, copy its typevars in case there are references to them elsewhere
jl_serialize_value(s, dt->name);
jl_serialize_value(s, dt->parameters);
return;
}
if (tag == 9) {
jl_serialize_value(s, dt);
return;
}
write_int32(s->s, dt->size);
int has_instance = (dt->instance != NULL);
int has_layout = (dt->layout != NULL);
write_uint8(s->s, has_layout | (has_instance << 1));
write_uint8(s->s, dt->hasfreetypevars
| (dt->isconcretetype << 1)
| (dt->isdispatchtuple << 2)
| (dt->isbitstype << 3)
| (dt->zeroinit << 4)
| (dt->has_concrete_subtype << 5)
| (dt->cached_by_hash << 6));
write_int32(s->s, dt->hash);
if (has_layout) {
uint8_t layout = 0;
if (dt->layout == ((jl_datatype_t*)jl_unwrap_unionall((jl_value_t*)jl_array_type))->layout) {
layout = 1;
}
else if (dt->layout == jl_nothing_type->layout) {
layout = 2;
}
else if (dt->layout == ((jl_datatype_t*)jl_unwrap_unionall((jl_value_t*)jl_pointer_type))->layout) {
layout = 3;
}
write_uint8(s->s, layout);
if (layout == 0) {
uint32_t nf = dt->layout->nfields;
uint32_t np = dt->layout->npointers;
size_t fieldsize = jl_fielddesc_size(dt->layout->fielddesc_type);
ios_write(s->s, (const char*)dt->layout, sizeof(*dt->layout));
size_t fldsize = nf * fieldsize;
if (dt->layout->first_ptr != -1)
fldsize += np << dt->layout->fielddesc_type;
ios_write(s->s, (const char*)(dt->layout + 1), fldsize);
}
}
if (has_instance)
jl_serialize_value(s, dt->instance);
jl_serialize_value(s, dt->name);
jl_serialize_value(s, dt->parameters);
jl_serialize_value(s, dt->super);
jl_serialize_value(s, dt->types);
}
static void jl_serialize_module(jl_serializer_state *s, jl_module_t *m)
{
write_uint8(s->s, TAG_MODULE);
jl_serialize_value(s, m->name);
size_t i;
if (!module_in_worklist(m)) {
if (m == m->parent) {
// top-level module
write_int8(s->s, 2);
int j = 0;
for (i = 0; i < jl_array_len(s->loaded_modules_array); i++) {
jl_module_t *mi = (jl_module_t*)jl_array_ptr_ref(s->loaded_modules_array, i);
if (!module_in_worklist(mi)) {
if (m == mi) {
write_int32(s->s, j);
return;
}
j++;
}
}
assert(0 && "top level module not found in modules array");
}
else {
write_int8(s->s, 1);
jl_serialize_value(s, m->parent);
}
return;
}
write_int8(s->s, 0);
jl_serialize_value(s, m->parent);
void **table = m->bindings.table;
for (i = 0; i < m->bindings.size; i += 2) {
if (table[i+1] != HT_NOTFOUND) {
jl_serialize_value(s, (jl_value_t*)table[i]);
jl_binding_t *b = (jl_binding_t*)table[i+1];
jl_serialize_value(s, b->name);
jl_value_t *e = b->value;
if (!b->constp && e && jl_is_cpointer(e) && jl_unbox_voidpointer(e) != (void*)-1 && jl_unbox_voidpointer(e) != NULL)
// reset Ptr fields to C_NULL (but keep MAP_FAILED / INVALID_HANDLE)
jl_serialize_cnull(s, jl_typeof(e));
else
jl_serialize_value(s, e);
jl_serialize_value(s, b->globalref);
jl_serialize_value(s, b->owner);
write_int8(s->s, (b->deprecated<<3) | (b->constp<<2) | (b->exportp<<1) | (b->imported));
}
}
jl_serialize_value(s, NULL);
write_int32(s->s, m->usings.len);
for(i=0; i < m->usings.len; i++) {
jl_serialize_value(s, (jl_value_t*)m->usings.items[i]);
}
write_uint8(s->s, m->istopmod);
write_uint64(s->s, m->uuid.hi);
write_uint64(s->s, m->uuid.lo);
write_uint64(s->s, m->build_id);
write_int32(s->s, m->counter);
write_int32(s->s, m->nospecialize);
write_uint8(s->s, m->optlevel);
write_uint8(s->s, m->compile);
write_uint8(s->s, m->infer);
}
static int jl_serialize_generic(jl_serializer_state *s, jl_value_t *v) JL_GC_DISABLED
{
if (v == NULL) {
write_uint8(s->s, TAG_NULL);
return 1;
}
void *tag = ptrhash_get(&ser_tag, v);
if (tag != HT_NOTFOUND) {
uint8_t t8 = (intptr_t)tag;
if (t8 <= LAST_TAG)
write_uint8(s->s, 0);
write_uint8(s->s, t8);
return 1;
}
if (jl_is_symbol(v)) {
void *idx = ptrhash_get(&common_symbol_tag, v);
if (idx != HT_NOTFOUND) {
write_uint8(s->s, TAG_COMMONSYM);
write_uint8(s->s, (uint8_t)(size_t)idx);
return 1;
}
}
else if (v == (jl_value_t*)jl_core_module) {
write_uint8(s->s, TAG_CORE);
return 1;
}
else if (v == (jl_value_t*)jl_base_module) {
write_uint8(s->s, TAG_BASE);
return 1;
}
if (jl_typeis(v, jl_string_type) && jl_string_len(v) == 0) {
jl_serialize_value(s, jl_an_empty_string);
return 1;
}
else if (!jl_is_uint8(v)) {
void **bp = ptrhash_bp(&backref_table, v);
if (*bp != HT_NOTFOUND) {
uintptr_t pos = (char*)*bp - (char*)HT_NOTFOUND - 1;
if (pos < 65536) {
write_uint8(s->s, TAG_SHORT_BACKREF);
write_uint16(s->s, pos);
}
else {
write_uint8(s->s, TAG_BACKREF);
write_int32(s->s, pos);
}
return 1;
}
intptr_t pos = backref_table_numel++;
if (((jl_datatype_t*)(jl_typeof(v)))->name == jl_idtable_typename) {
// will need to rehash this, later (after types are fully constructed)
arraylist_push(&reinit_list, (void*)pos);
arraylist_push(&reinit_list, (void*)1);
}
if (jl_is_module(v)) {
jl_module_t *m = (jl_module_t*)v;
if (module_in_worklist(m) && !module_in_worklist(m->parent)) {
// will need to reinsert this into parent bindings, later (in case of any errors during reinsert)
arraylist_push(&reinit_list, (void*)pos);
arraylist_push(&reinit_list, (void*)2);
}
}
// TypeMapLevels need to be rehashed
if (jl_is_mtable(v)) {
arraylist_push(&reinit_list, (void*)pos);
arraylist_push(&reinit_list, (void*)3);
}
pos <<= 1;
ptrhash_put(&backref_table, v, (char*)HT_NOTFOUND + pos + 1);
}
return 0;
}
static void jl_serialize_code_instance(jl_serializer_state *s, jl_code_instance_t *codeinst, int skip_partial_opaque) JL_GC_DISABLED
{
if (jl_serialize_generic(s, (jl_value_t*)codeinst)) {
return;
}
int validate = 0;
if (codeinst->max_world == ~(size_t)0)
validate = 1; // can check on deserialize if this cache entry is still valid
int flags = validate << 0;
if (codeinst->invoke == jl_fptr_const_return)
flags |= 1 << 2;
if (codeinst->precompile)
flags |= 1 << 3;
// CodeInstances with PartialOpaque return type are currently not allowed
// to be cached. We skip them in serialization here, forcing them to
// be re-infered on reload.
int write_ret_type = validate || codeinst->min_world == 0;
if (write_ret_type && codeinst->rettype_const &&
jl_typeis(codeinst->rettype_const, jl_partial_opaque_type)) {
if (skip_partial_opaque) {
jl_serialize_code_instance(s, codeinst->next, skip_partial_opaque);
return;
}
else {
jl_error("Cannot serialize CodeInstance with PartialOpaque rettype");
}
}
write_uint8(s->s, TAG_CODE_INSTANCE);
write_uint8(s->s, flags);
jl_serialize_value(s, (jl_value_t*)codeinst->def);
if (write_ret_type) {
jl_serialize_value(s, codeinst->inferred);
jl_serialize_value(s, codeinst->rettype_const);
jl_serialize_value(s, codeinst->rettype);
}
else {
// skip storing useless data
jl_serialize_value(s, NULL);
jl_serialize_value(s, NULL);
jl_serialize_value(s, jl_any_type);
}
jl_serialize_code_instance(s, codeinst->next, skip_partial_opaque);
}
enum METHOD_SERIALIZATION_MODE {
METHOD_INTERNAL = 1,
METHOD_EXTERNAL_MT = 2,
};
static void jl_serialize_value_(jl_serializer_state *s, jl_value_t *v, int as_literal) JL_GC_DISABLED
{
if (jl_serialize_generic(s, v)) {
return;
}
size_t i;
if (jl_is_svec(v)) {
size_t l = jl_svec_len(v);
if (l <= 255) {
write_uint8(s->s, TAG_SVEC);
write_uint8(s->s, (uint8_t)l);
}
else {
write_uint8(s->s, TAG_LONG_SVEC);
write_int32(s->s, l);
}
for (i = 0; i < l; i++) {
jl_serialize_value(s, jl_svecref(v, i));
}
}
else if (jl_is_symbol(v)) {
size_t l = strlen(jl_symbol_name((jl_sym_t*)v));
if (l <= 255) {
write_uint8(s->s, TAG_SYMBOL);
write_uint8(s->s, (uint8_t)l);
}
else {
write_uint8(s->s, TAG_LONG_SYMBOL);
write_int32(s->s, l);
}
ios_write(s->s, jl_symbol_name((jl_sym_t*)v), l);
}
else if (jl_is_array(v)) {
jl_array_t *ar = (jl_array_t*)v;
jl_value_t *et = jl_tparam0(jl_typeof(ar));
int isunion = jl_is_uniontype(et);
if (ar->flags.ndims == 1 && ar->elsize <= 0x1f) {
write_uint8(s->s, TAG_ARRAY1D);
write_uint8(s->s, (ar->flags.ptrarray << 7) | (ar->flags.hasptr << 6) | (isunion << 5) | (ar->elsize & 0x1f));
}
else {
write_uint8(s->s, TAG_ARRAY);
write_uint16(s->s, ar->flags.ndims);
write_uint16(s->s, (ar->flags.ptrarray << 15) | (ar->flags.hasptr << 14) | (isunion << 13) | (ar->elsize & 0x1fff));
}
for (i = 0; i < ar->flags.ndims; i++)
jl_serialize_value(s, jl_box_long(jl_array_dim(ar,i)));
jl_serialize_value(s, jl_typeof(ar));
size_t l = jl_array_len(ar);
if (ar->flags.ptrarray) {
for (i = 0; i < l; i++) {
jl_value_t *e = jl_array_ptr_ref(v, i);
if (e && jl_is_cpointer(e) && jl_unbox_voidpointer(e) != (void*)-1 && jl_unbox_voidpointer(e) != NULL)
// reset Ptr elements to C_NULL (but keep MAP_FAILED / INVALID_HANDLE)
jl_serialize_cnull(s, jl_typeof(e));
else
jl_serialize_value(s, e);
}
}
else if (ar->flags.hasptr) {
const char *data = (const char*)jl_array_data(ar);
uint16_t elsz = ar->elsize;
size_t j, np = ((jl_datatype_t*)et)->layout->npointers;
for (i = 0; i < l; i++) {
const char *start = data;
for (j = 0; j < np; j++) {
uint32_t ptr = jl_ptr_offset((jl_datatype_t*)et, j);
const jl_value_t *const *fld = &((const jl_value_t *const *)data)[ptr];
if ((const char*)fld != start)
ios_write(s->s, start, (const char*)fld - start);
JL_GC_PROMISE_ROOTED(*fld);
jl_serialize_value(s, *fld);
start = (const char*)&fld[1];
}
data += elsz;
if (data != start)
ios_write(s->s, start, data - start);
}
}
else if (jl_is_cpointer_type(et)) {
// reset Ptr elements to C_NULL
const void **data = (const void**)jl_array_data(ar);
for (i = 0; i < l; i++) {
const void *e = data[i];
if (e != (void*)-1)
e = NULL;
ios_write(s->s, (const char*)&e, sizeof(e));
}
}
else {
ios_write(s->s, (char*)jl_array_data(ar), l * ar->elsize);
if (jl_array_isbitsunion(ar))
ios_write(s->s, jl_array_typetagdata(ar), l);
}
}
else if (jl_is_datatype(v)) {
jl_serialize_datatype(s, (jl_datatype_t*)v);
}
else if (jl_is_unionall(v)) {
write_uint8(s->s, TAG_UNIONALL);
jl_datatype_t *d = (jl_datatype_t*)jl_unwrap_unionall(v);
if (jl_is_datatype(d) && d->name->wrapper == v &&
!module_in_worklist(d->name->module)) {
write_uint8(s->s, 1);
jl_serialize_value(s, d->name->module);
jl_serialize_value(s, d->name->name);
}
else {
write_uint8(s->s, 0);
jl_serialize_value(s, ((jl_unionall_t*)v)->var);
jl_serialize_value(s, ((jl_unionall_t*)v)->body);
}
}
else if (jl_is_typevar(v)) {
write_uint8(s->s, TAG_TVAR);
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);
}
else if (jl_is_method(v)) {
write_uint8(s->s, TAG_METHOD);
jl_method_t *m = (jl_method_t*)v;
int serialization_mode = 0;
if (m->is_for_opaque_closure || module_in_worklist(m->module))
serialization_mode |= METHOD_INTERNAL;
if (!(serialization_mode & METHOD_INTERNAL)) {
// flag this in the backref table as special
uintptr_t *bp = (uintptr_t*)ptrhash_bp(&backref_table, v);
assert(*bp != (uintptr_t)HT_NOTFOUND);
*bp |= 1;
}
jl_serialize_value(s, (jl_value_t*)m->sig);
jl_serialize_value(s, (jl_value_t*)m->module);
if (m->external_mt != NULL) {
assert(jl_typeis(m->external_mt, jl_methtable_type));
jl_methtable_t *mt = (jl_methtable_t*)m->external_mt;
if (!module_in_worklist(mt->module)) {
serialization_mode |= METHOD_EXTERNAL_MT;
}
}
write_uint8(s->s, serialization_mode);
if (serialization_mode & METHOD_EXTERNAL_MT) {
// We reference this method table by module and binding
jl_methtable_t *mt = (jl_methtable_t*)m->external_mt;
jl_serialize_value(s, mt->module);
jl_serialize_value(s, mt->name);
}
else {
jl_serialize_value(s, (jl_value_t*)m->external_mt);
}
if (!(serialization_mode & METHOD_INTERNAL))
return;
jl_serialize_value(s, m->specializations);
jl_serialize_value(s, m->speckeyset);
jl_serialize_value(s, (jl_value_t*)m->name);
jl_serialize_value(s, (jl_value_t*)m->file);
write_int32(s->s, m->line);
write_int32(s->s, m->called);
write_int32(s->s, m->nargs);
write_int32(s->s, m->nospecialize);
write_int32(s->s, m->nkw);
write_int8(s->s, m->isva);
write_int8(s->s, m->pure);
write_int8(s->s, m->is_for_opaque_closure);
write_int8(s->s, m->aggressive_constprop);
jl_serialize_value(s, (jl_value_t*)m->slot_syms);
jl_serialize_value(s, (jl_value_t*)m->roots);
jl_serialize_value(s, (jl_value_t*)m->ccallable);
jl_serialize_value(s, (jl_value_t*)m->source);
jl_serialize_value(s, (jl_value_t*)m->unspecialized);
jl_serialize_value(s, (jl_value_t*)m->generator);
jl_serialize_value(s, (jl_value_t*)m->invokes);
jl_serialize_value(s, (jl_value_t*)m->recursion_relation);
}
else if (jl_is_method_instance(v)) {
jl_method_instance_t *mi = (jl_method_instance_t*)v;
if (jl_is_method(mi->def.value) && mi->def.method->is_for_opaque_closure) {
jl_error("unimplemented: serialization of MethodInstances for OpaqueClosure");
}
write_uint8(s->s, TAG_METHOD_INSTANCE);
int internal = 0;
if (!jl_is_method(mi->def.method))
internal = 1;
else if (module_in_worklist(mi->def.method->module))
internal = 2;
write_uint8(s->s, internal);
if (!internal) {
// also flag this in the backref table as special
uintptr_t *bp = (uintptr_t*)ptrhash_bp(&backref_table, v);
assert(*bp != (uintptr_t)HT_NOTFOUND);
*bp |= 1;
}
if (internal == 1)
jl_serialize_value(s, (jl_value_t*)mi->uninferred);
jl_serialize_value(s, (jl_value_t*)mi->specTypes);
jl_serialize_value(s, mi->def.value);
if (!internal)
return;
jl_serialize_value(s, (jl_value_t*)mi->sparam_vals);
jl_array_t *backedges = mi->backedges;
if (backedges) {
// filter backedges to only contain pointers
// to items that we will actually store (internal == 2)
size_t ins, i, l = jl_array_len(backedges);
jl_method_instance_t **b_edges = (jl_method_instance_t**)jl_array_data(backedges);
for (ins = i = 0; i < l; i++) {
jl_method_instance_t *backedge = b_edges[i];
if (module_in_worklist(backedge->def.method->module)) {
b_edges[ins++] = backedge;
}
}
if (ins != l)
jl_array_del_end(backedges, l - ins);
if (ins == 0)
backedges = NULL;
}
jl_serialize_value(s, (jl_value_t*)backedges);
jl_serialize_value(s, (jl_value_t*)NULL); //callbacks
jl_serialize_code_instance(s, mi->cache, 1);
}
else if (jl_is_code_instance(v)) {
jl_serialize_code_instance(s, (jl_code_instance_t*)v, 0);
}
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 if (jl_typeis(v, jl_opaque_closure_type)) {
jl_error("Live opaque closures cannot be serialized");
}
else if (jl_typeis(v, jl_string_type)) {
write_uint8(s->s, TAG_STRING);
write_int32(s->s, jl_string_len(v));
ios_write(s->s, jl_string_data(v), jl_string_len(v));
}
else if (jl_typeis(v, jl_int64_type)) {
void *data = jl_data_ptr(v);
if (*(int64_t*)data >= INT16_MIN && *(int64_t*)data <= INT16_MAX) {
write_uint8(s->s, TAG_SHORTER_INT64);
write_uint16(s->s, (uint16_t)*(int64_t*)data);
}
else if (*(int64_t*)data >= S32_MIN && *(int64_t*)data <= S32_MAX) {
write_uint8(s->s, TAG_SHORT_INT64);
write_int32(s->s, (int32_t)*(int64_t*)data);
}
else {
write_uint8(s->s, TAG_INT64);
write_int64(s->s, *(int64_t*)data);
}
}
else if (jl_typeis(v, jl_int32_type)) {
void *data = jl_data_ptr(v);
if (*(int32_t*)data >= INT16_MIN && *(int32_t*)data <= INT16_MAX) {
write_uint8(s->s, TAG_SHORT_INT32);
write_uint16(s->s, (uint16_t)*(int32_t*)data);
}
else {
write_uint8(s->s, TAG_INT32);
write_int32(s->s, *(int32_t*)data);
}
}
else if (jl_typeis(v, jl_uint8_type)) {
write_uint8(s->s, TAG_UINT8);
write_int8(s->s, *(int8_t*)jl_data_ptr(v));
}
else if (jl_is_cpointer(v) && jl_unbox_voidpointer(v) == NULL) {
write_uint8(s->s, TAG_CNULL);
jl_serialize_value(s, jl_typeof(v));
return;
}
else if (jl_bigint_type && jl_typeis(v, jl_bigint_type)) {
write_uint8(s->s, TAG_SHORT_GENERAL);
write_uint8(s->s, jl_datatype_size(jl_bigint_type));
jl_serialize_value(s, jl_bigint_type);
jl_value_t *sizefield = jl_get_nth_field(v, 1);
jl_serialize_value(s, sizefield);
void *data = jl_unbox_voidpointer(jl_get_nth_field(v, 2));
int32_t sz = jl_unbox_int32(sizefield);
size_t nb = (sz == 0 ? 1 : (sz < 0 ? -sz : sz)) * gmp_limb_size;
ios_write(s->s, (char*)data, nb);
}
else {
jl_datatype_t *t = (jl_datatype_t*)jl_typeof(v);
if (v == t->instance) {
if (!type_in_worklist(t)) {
// also flag this in the backref table as special
// if it might not be unique (is external)
uintptr_t *bp = (uintptr_t*)ptrhash_bp(&backref_table, v);
assert(*bp != (uintptr_t)HT_NOTFOUND);
*bp |= 1;
}
write_uint8(s->s, TAG_SINGLETON);
jl_serialize_value(s, t);
return;
}
assert(!t->instance && "detected singleton construction corruption");
if (t == jl_typename_type) {
void *bttag = ptrhash_get(&ser_tag, ((jl_typename_t*)t)->wrapper);
if (bttag != HT_NOTFOUND) {
write_uint8(s->s, TAG_BITYPENAME);
write_uint8(s->s, (uint8_t)(intptr_t)bttag);
return;
}
}
if (t->size <= 255) {
write_uint8(s->s, TAG_SHORT_GENERAL);
write_uint8(s->s, t->size);
}
else {
write_uint8(s->s, TAG_GENERAL);
write_int32(s->s, t->size);
}
jl_serialize_value(s, t);
if (t == jl_typename_type) {
jl_typename_t *tn = (jl_typename_t*)v;
int internal = module_in_worklist(tn->module);
write_uint8(s->s, internal);
jl_serialize_value(s, tn->module);
jl_serialize_value(s, tn->name);
if (internal) {
jl_serialize_value(s, tn->names);
jl_serialize_value(s, tn->wrapper);
jl_serialize_value(s, tn->mt);
ios_write(s->s, (char*)&tn->hash, sizeof(tn->hash));
write_uint8(s->s, tn->abstract | (tn->mutabl << 1) | (tn->mayinlinealloc << 2));
if (!tn->abstract)
write_uint16(s->s, tn->n_uninitialized);
size_t nb = tn->atomicfields ? (jl_svec_len(tn->names) + 31) / 32 * sizeof(uint32_t) : 0;
write_int32(s->s, nb);
if (nb)
ios_write(s->s, (char*)tn->atomicfields, nb);
}
return;
}
if (jl_is_foreign_type(t)) {
jl_error("Cannot serialize instances of foreign datatypes");
}
char *data = (char*)jl_data_ptr(v);
size_t i, j, np = t->layout->npointers;
uint32_t nf = t->layout->nfields;
char *last = data;
for (i = 0, j = 0; i < nf+1; i++) {
char *ptr = data + (i < nf ? jl_field_offset(t, i) : jl_datatype_size(t));
if (j < np) {
char *prevptr = (char*)&((jl_value_t**)data)[jl_ptr_offset(t, j)];
while (ptr > prevptr) {
// previous field contained pointers; write them and their interleaved data
if (prevptr > last)
ios_write(s->s, last, prevptr - last);
jl_value_t *e = *(jl_value_t**)prevptr;
JL_GC_PROMISE_ROOTED(e);
if (t->name->mutabl && e && jl_field_isptr(t, i - 1) && jl_is_cpointer(e) &&
jl_unbox_voidpointer(e) != (void*)-1 && jl_unbox_voidpointer(e) != NULL)
// reset Ptr fields to C_NULL (but keep MAP_FAILED / INVALID_HANDLE)
jl_serialize_cnull(s, jl_typeof(e));
else
jl_serialize_value(s, e);
last = prevptr + sizeof(jl_value_t*);
j++;
if (j < np)
prevptr = (char*)&((jl_value_t**)data)[jl_ptr_offset(t, j)];
else
break;
}
}
if (i == nf)
break;
if (t->name->mutabl && jl_is_cpointer_type(jl_field_type(t, i)) && *(void**)ptr != (void*)-1) {
if (ptr > last)
ios_write(s->s, last, ptr - last);
char *n = NULL;
ios_write(s->s, (char*)&n, sizeof(n));
last = ptr + sizeof(n);
}
}
char *ptr = data + jl_datatype_size(t);
if (ptr > last)
ios_write(s->s, last, ptr - last);
}
}
static void jl_collect_missing_backedges_to_mod(jl_methtable_t *mt)
{
jl_array_t *backedges = mt->backedges;
if (backedges) {
size_t i, l = jl_array_len(backedges);
for (i = 1; i < l; i += 2) {
jl_method_instance_t *caller = (jl_method_instance_t*)jl_array_ptr_ref(backedges, i);
jl_value_t *missing_callee = jl_array_ptr_ref(backedges, i - 1);
jl_array_t **edges = (jl_array_t**)ptrhash_bp(&edges_map, (void*)caller);
if (*edges == HT_NOTFOUND)
*edges = jl_alloc_vec_any(0);
jl_array_ptr_1d_push(*edges, missing_callee);
}
}
}
// the intent of this function is to invert the backedges tree
// for anything that points to a method not part of the worklist
static void collect_backedges(jl_method_instance_t *callee) JL_GC_DISABLED
{
jl_array_t *backedges = callee->backedges;
if (backedges) {
size_t i, l = jl_array_len(backedges);
for (i = 0; i < l; i++) {
jl_method_instance_t *caller = (jl_method_instance_t*)jl_array_ptr_ref(backedges, i);
jl_array_t **edges = (jl_array_t**)ptrhash_bp(&edges_map, caller);
if (*edges == HT_NOTFOUND)
*edges = jl_alloc_vec_any(0);
jl_array_ptr_1d_push(*edges, (jl_value_t*)callee);
}
}
}
static int jl_collect_methcache_from_mod(jl_typemap_entry_t *ml, void *closure) JL_GC_DISABLED
{
jl_array_t *s = (jl_array_t*)closure;
jl_method_t *m = ml->func.method;
if (module_in_worklist(m->module)) {
jl_array_ptr_1d_push(s, (jl_value_t*)m);
jl_array_ptr_1d_push(s, (jl_value_t*)ml->simplesig);
}
else {
jl_svec_t *specializations = m->specializations;
size_t i, l = jl_svec_len(specializations);
for (i = 0; i < l; i++) {
jl_method_instance_t *callee = (jl_method_instance_t*)jl_svecref(specializations, i);
if ((jl_value_t*)callee != jl_nothing)
collect_backedges(callee);
}
}
return 1;
}
static void jl_collect_methtable_from_mod(jl_array_t *s, jl_methtable_t *mt) JL_GC_DISABLED
{
jl_typemap_visitor(mt->defs, jl_collect_methcache_from_mod, (void*)s);
}
static void jl_collect_lambdas_from_mod(jl_array_t *s, jl_module_t *m) JL_GC_DISABLED
{
if (module_in_worklist(m))
return;
size_t i;
void **table = m->bindings.table;
for (i = 1; i < m->bindings.size; i += 2) {
if (table[i] != HT_NOTFOUND) {
jl_binding_t *b = (jl_binding_t*)table[i];
if (b->owner == m && b->value && b->constp) {
jl_value_t *bv = jl_unwrap_unionall(b->value);
if (jl_is_datatype(bv)) {
jl_typename_t *tn = ((jl_datatype_t*)bv)->name;
if (tn->module == m && tn->name == b->name && tn->wrapper == b->value) {
jl_methtable_t *mt = tn->mt;
if (mt != NULL &&
(jl_value_t*)mt != jl_nothing &&
(mt != jl_type_type_mt && mt != jl_nonfunction_mt)) {
jl_collect_methtable_from_mod(s, mt);
jl_collect_missing_backedges_to_mod(mt);
}
}
}
else if (jl_is_module(b->value)) {
jl_module_t *child = (jl_module_t*)b->value;
if (child != m && child->parent == m && child->name == b->name) {
// this is the original/primary binding for the submodule
jl_collect_lambdas_from_mod(s, (jl_module_t*)b->value);
}
}
else if (jl_is_mtable(b->value)) {
jl_methtable_t *mt = (jl_methtable_t*)b->value;
if (mt->module == m && mt->name == b->name) {
// this is probably an external method table, so let's assume so
// as there is no way to precisely distinguish them,
// and the rest of this serializer does not bother
// to handle any method tables specially
jl_collect_methtable_from_mod(s, (jl_methtable_t*)bv);
}
}
}
}
}
}
// flatten the backedge map reachable from caller into callees
static void jl_collect_backedges_to(jl_method_instance_t *caller, htable_t *all_callees) JL_GC_DISABLED
{
jl_array_t **pcallees = (jl_array_t**)ptrhash_bp(&edges_map, (void*)caller),
*callees = *pcallees;
if (callees != HT_NOTFOUND) {
*pcallees = (jl_array_t*) HT_NOTFOUND;
size_t i, l = jl_array_len(callees);
for (i = 0; i < l; i++) {
jl_value_t *c = jl_array_ptr_ref(callees, i);
ptrhash_put(all_callees, c, c);
if (jl_is_method_instance(c)) {
jl_collect_backedges_to((jl_method_instance_t*)c, all_callees);
}
}
}
}
static void jl_collect_backedges(jl_array_t *s, jl_array_t *t)
{
htable_t all_targets;
htable_t all_callees;
htable_new(&all_targets, 0);
htable_new(&all_callees, 0);
size_t i;
void **table = edges_map.table;
for (i = 0; i < edges_map.size; i += 2) {
jl_method_instance_t *caller = (jl_method_instance_t*)table[i];
jl_array_t *callees = (jl_array_t*)table[i + 1];
if (callees != HT_NOTFOUND && module_in_worklist(caller->def.method->module)) {
size_t i, l = jl_array_len(callees);
for (i = 0; i < l; i++) {
jl_value_t *c = jl_array_ptr_ref(callees, i);
ptrhash_put(&all_callees, c, c);
if (jl_is_method_instance(c)) {
jl_collect_backedges_to((jl_method_instance_t*)c, &all_callees);
}
}
callees = jl_alloc_array_1d(jl_array_int32_type, 0);
void **pc = all_callees.table;
size_t j;
int valid = 1;
for (j = 0; valid && j < all_callees.size; j += 2) {
if (pc[j + 1] != HT_NOTFOUND) {
jl_value_t *callee = (jl_value_t*)pc[j];
void *target = ptrhash_get(&all_targets, (void*)callee);
if (target == HT_NOTFOUND) {
jl_method_instance_t *callee_mi = (jl_method_instance_t*)callee;
jl_value_t *sig;
if (jl_is_method_instance(callee)) {
sig = callee_mi->specTypes;
}
else {
sig = callee;
}
size_t min_valid = 0;
size_t max_valid = ~(size_t)0;
int ambig = 0;
jl_value_t *matches = jl_matching_methods((jl_tupletype_t*)sig, jl_nothing, -1, 0, jl_world_counter, &min_valid, &max_valid, &ambig);
if (matches == jl_false) {
valid = 0;
break;
}
size_t k;
for (k = 0; k < jl_array_len(matches); k++) {
jl_method_match_t *match = (jl_method_match_t *)jl_array_ptr_ref(matches, k);
jl_array_ptr_set(matches, k, match->method);
}
jl_array_ptr_1d_push(t, callee);
jl_array_ptr_1d_push(t, matches);
target = (char*)HT_NOTFOUND + jl_array_len(t) / 2;
ptrhash_put(&all_targets, (void*)callee, target);
}
jl_array_grow_end(callees, 1);
((int32_t*)jl_array_data(callees))[jl_array_len(callees) - 1] = (char*)target - (char*)HT_NOTFOUND - 1;
}
}
htable_reset(&all_callees, 100);
if (valid) {
jl_array_ptr_1d_push(s, (jl_value_t*)caller);
jl_array_ptr_1d_push(s, (jl_value_t*)callees);
}
}
}
htable_free(&all_targets);
htable_free(&all_callees);
}
// serialize information about all loaded modules
static void write_mod_list(ios_t *s, jl_array_t *a)
{
size_t i;
size_t len = jl_array_len(a);
for (i = 0; i < len; i++) {
jl_module_t *m = (jl_module_t*)jl_array_ptr_ref(a, i);
assert(jl_is_module(m));
if (!module_in_worklist(m)) {
const char *modname = jl_symbol_name(m->name);
size_t l = strlen(modname);
write_int32(s, l);
ios_write(s, modname, l);
write_uint64(s, m->uuid.hi);
write_uint64(s, m->uuid.lo);
write_uint64(s, m->build_id);
}
}
write_int32(s, 0);
}
// "magic" string and version header of .ji file
static const int JI_FORMAT_VERSION = 11;
static const char JI_MAGIC[] = "\373jli\r\n\032\n"; // based on PNG signature
static const uint16_t BOM = 0xFEFF; // byte-order marker
static void write_header(ios_t *s)
{
ios_write(s, JI_MAGIC, strlen(JI_MAGIC));
write_uint16(s, JI_FORMAT_VERSION);
ios_write(s, (char *) &BOM, 2);
write_uint8(s, sizeof(void*));
ios_write(s, JL_BUILD_UNAME, strlen(JL_BUILD_UNAME)+1);
ios_write(s, JL_BUILD_ARCH, strlen(JL_BUILD_ARCH)+1);
ios_write(s, JULIA_VERSION_STRING, strlen(JULIA_VERSION_STRING)+1);
const char *branch = jl_git_branch(), *commit = jl_git_commit();
ios_write(s, branch, strlen(branch)+1);
ios_write(s, commit, strlen(commit)+1);
}
// serialize information about the result of deserializing this file
static void write_work_list(ios_t *s)
{
int i, l = jl_array_len(serializer_worklist);
for (i = 0; i < l; i++) {
jl_module_t *workmod = (jl_module_t*)jl_array_ptr_ref(serializer_worklist, i);
if (workmod->parent == jl_main_module || workmod->parent == workmod) {
size_t l = strlen(jl_symbol_name(workmod->name));
write_int32(s, l);
ios_write(s, jl_symbol_name(workmod->name), l);
write_uint64(s, workmod->uuid.hi);
write_uint64(s, workmod->uuid.lo);
write_uint64(s, workmod->build_id);
}
}
write_int32(s, 0);
}
static void write_module_path(ios_t *s, jl_module_t *depmod) JL_NOTSAFEPOINT
{
if (depmod->parent == jl_main_module || depmod->parent == depmod)
return;
const char *mname = jl_symbol_name(depmod->name);
size_t slen = strlen(mname);
write_module_path(s, depmod->parent);
write_int32(s, slen);
ios_write(s, mname, slen);
}
// serialize the global _require_dependencies array of pathnames that
// are include dependencies
static int64_t write_dependency_list(ios_t *s, jl_array_t **udepsp, jl_array_t *mod_array)
{
int64_t initial_pos = 0;
int64_t pos = 0;
static jl_array_t *deps = NULL;
if (!deps)
deps = (jl_array_t*)jl_get_global(jl_base_module, jl_symbol("_require_dependencies"));
// unique(deps) to eliminate duplicates while preserving order:
// we preserve order so that the topmost included .jl file comes first
static jl_value_t *unique_func = NULL;
if (!unique_func)
unique_func = jl_get_global(jl_base_module, jl_symbol("unique"));
jl_value_t *uniqargs[2] = {unique_func, (jl_value_t*)deps};
jl_task_t *ct = jl_current_task;
size_t last_age = ct->world_age;
ct->world_age = jl_world_counter;
jl_array_t *udeps = (*udepsp = deps && unique_func ? (jl_array_t*)jl_apply(uniqargs, 2) : NULL);
ct->world_age = last_age;
// write a placeholder for total size so that we can quickly seek past all of the
// dependencies if we don't need them
initial_pos = ios_pos(s);
write_uint64(s, 0);
if (udeps) {
size_t i, l = jl_array_len(udeps);
for (i = 0; i < l; i++) {
jl_value_t *deptuple = jl_array_ptr_ref(udeps, i);
jl_value_t *dep = jl_fieldref(deptuple, 1); // file abspath
size_t slen = jl_string_len(dep);
write_int32(s, slen);
ios_write(s, jl_string_data(dep), slen);
write_float64(s, jl_unbox_float64(jl_fieldref(deptuple, 2))); // mtime
jl_module_t *depmod = (jl_module_t*)jl_fieldref(deptuple, 0); // evaluating module
jl_module_t *depmod_top = depmod;
while (depmod_top->parent != jl_main_module && depmod_top->parent != depmod_top)
depmod_top = depmod_top->parent;
unsigned provides = 0;
size_t j, lj = jl_array_len(serializer_worklist);
for (j = 0; j < lj; j++) {
jl_module_t *workmod = (jl_module_t*)jl_array_ptr_ref(serializer_worklist, j);
if (workmod->parent == jl_main_module || workmod->parent == workmod) {
++provides;
if (workmod == depmod_top) {
write_int32(s, provides);
write_module_path(s, depmod);
break;
}
}
}
write_int32(s, 0);
}
write_int32(s, 0); // terminator, for ease of reading
// Calculate Preferences hash for current package.
jl_value_t *prefs_hash = NULL;
jl_value_t *prefs_list = NULL;
JL_GC_PUSH1(&prefs_list);
if (jl_base_module) {
// Toplevel module is the module we're currently compiling, use it to get our preferences hash
jl_value_t * toplevel = (jl_value_t*)jl_get_global(jl_base_module, jl_symbol("__toplevel__"));
jl_value_t * prefs_hash_func = jl_get_global(jl_base_module, jl_symbol("get_preferences_hash"));
jl_value_t * get_compiletime_prefs_func = jl_get_global(jl_base_module, jl_symbol("get_compiletime_preferences"));
if (toplevel && prefs_hash_func && get_compiletime_prefs_func) {
// Temporary invoke in newest world age
size_t last_age = ct->world_age;
ct->world_age = jl_world_counter;
// call get_compiletime_prefs(__toplevel__)
jl_value_t *args[3] = {get_compiletime_prefs_func, (jl_value_t*)toplevel, NULL};
prefs_list = (jl_value_t*)jl_apply(args, 2);
// Call get_preferences_hash(__toplevel__, prefs_list)
args[0] = prefs_hash_func;
args[2] = prefs_list;
prefs_hash = (jl_value_t*)jl_apply(args, 3);
// Reset world age to normal
ct->world_age = last_age;
}
}
// If we successfully got the preferences, write it out, otherwise write `0` for this `.ji` file.
if (prefs_hash != NULL && prefs_list != NULL) {
size_t i, l = jl_array_len(prefs_list);
for (i = 0; i < l; i++) {
jl_value_t *pref_name = jl_array_ptr_ref(prefs_list, i);
size_t slen = jl_string_len(pref_name);
write_int32(s, slen);
ios_write(s, jl_string_data(pref_name), slen);
}
write_int32(s, 0); // terminator
write_uint64(s, jl_unbox_uint64(prefs_hash));
} else {
// This is an error path, but let's at least generate a valid `.ji` file.
// We declare an empty list of preference names, followed by a zero-hash.
// The zero-hash is not what would be generated for an empty set of preferences,
// and so this `.ji` file will be invalidated by a future non-erroring pass
// through this function.
write_int32(s, 0);
write_uint64(s, 0);
}
JL_GC_POP(); // for prefs_list
// write a dummy file position to indicate the beginning of the source-text
pos = ios_pos(s);
ios_seek(s, initial_pos);
write_uint64(s, pos - initial_pos);
ios_seek(s, pos);
write_int64(s, 0);
}
return pos;
}
// --- deserialize ---
static jl_value_t *jl_deserialize_value(jl_serializer_state *s, jl_value_t **loc) JL_GC_DISABLED;
static jl_value_t *jl_deserialize_datatype(jl_serializer_state *s, int pos, jl_value_t **loc) JL_GC_DISABLED
{
assert(pos == backref_list.len - 1 && "nothing should have been deserialized since assigning pos");
int tag = read_uint8(s->s);
if (tag == 6 || tag == 7) {
jl_typename_t *name = (jl_typename_t*)jl_deserialize_value(s, NULL);
jl_value_t *dtv = name->wrapper;
jl_svec_t *parameters = (jl_svec_t*)jl_deserialize_value(s, NULL);
dtv = jl_apply_type(dtv, jl_svec_data(parameters), jl_svec_len(parameters));
backref_list.items[pos] = dtv;
return dtv;
}
if (tag == 9) {
jl_datatype_t *primarydt = (jl_datatype_t*)jl_deserialize_value(s, NULL);
jl_value_t *dtv = jl_typeof(jl_get_kwsorter((jl_value_t*)primarydt));
backref_list.items[pos] = dtv;
return dtv;
}
if (!(tag == 0 || tag == 5 || tag == 10 || tag == 11 || tag == 12)) {
assert(0 && "corrupt deserialization state");
abort();
}
jl_datatype_t *dt = jl_new_uninitialized_datatype();
backref_list.items[pos] = dt;
if (loc != NULL && loc != HT_NOTFOUND)
*loc = (jl_value_t*)dt;
size_t size = read_int32(s->s);
uint8_t flags = read_uint8(s->s);
uint8_t memflags = read_uint8(s->s);
dt->size = size;
int has_layout = flags & 1;
int has_instance = (flags >> 1) & 1;
dt->hasfreetypevars = memflags & 1;
dt->isconcretetype = (memflags >> 1) & 1;
dt->isdispatchtuple = (memflags >> 2) & 1;
dt->isbitstype = (memflags >> 3) & 1;
dt->zeroinit = (memflags >> 4) & 1;
dt->has_concrete_subtype = (memflags >> 5) & 1;
dt->cached_by_hash = (memflags >> 6) & 1;
dt->hash = read_int32(s->s);
if (has_layout) {
uint8_t layout = read_uint8(s->s);
if (layout == 1) {
dt->layout = ((jl_datatype_t*)jl_unwrap_unionall((jl_value_t*)jl_array_type))->layout;
}
else if (layout == 2) {
dt->layout = jl_nothing_type->layout;
}
else if (layout == 3) {
dt->layout = ((jl_datatype_t*)jl_unwrap_unionall((jl_value_t*)jl_pointer_type))->layout;
}
else {
assert(layout == 0);
jl_datatype_layout_t buffer;
ios_readall(s->s, (char*)&buffer, sizeof(buffer));
uint32_t nf = buffer.nfields;
uint32_t np = buffer.npointers;
uint8_t fielddesc_type = buffer.fielddesc_type;
size_t fielddesc_size = nf > 0 ? jl_fielddesc_size(fielddesc_type) : 0;
size_t fldsize = nf * fielddesc_size;
if (buffer.first_ptr != -1)
fldsize += np << fielddesc_type;
jl_datatype_layout_t *layout = (jl_datatype_layout_t*)jl_gc_perm_alloc(
sizeof(jl_datatype_layout_t) + fldsize,
0, 4, 0);
*layout = buffer;
ios_readall(s->s, (char*)(layout + 1), fldsize);
dt->layout = layout;
}
}
if (tag == 10 || tag == 11 || tag == 12) {
assert(pos > 0);
arraylist_push(&flagref_list, loc == HT_NOTFOUND ? NULL : loc);
arraylist_push(&flagref_list, (void*)(uintptr_t)pos);
ptrhash_put(&uniquing_table, dt, NULL);
}
if (has_instance) {
assert(dt->isconcretetype && "there shouldn't be an instance on an abstract type");
dt->instance = jl_deserialize_value(s, &dt->instance);
jl_gc_wb(dt, dt->instance);
}
dt->name = (jl_typename_t*)jl_deserialize_value(s, (jl_value_t**)&dt->name);
jl_gc_wb(dt, dt->name);
dt->parameters = (jl_svec_t*)jl_deserialize_value(s, (jl_value_t**)&dt->parameters);
jl_gc_wb(dt, dt->parameters);
dt->super = (jl_datatype_t*)jl_deserialize_value(s, (jl_value_t**)&dt->super);
jl_gc_wb(dt, dt->super);
dt->types = (jl_svec_t*)jl_deserialize_value(s, (jl_value_t**)&dt->types);
if (dt->types) jl_gc_wb(dt, dt->types);
return (jl_value_t*)dt;
}
static jl_value_t *jl_deserialize_value_svec(jl_serializer_state *s, uint8_t tag, jl_value_t **loc) JL_GC_DISABLED
{
size_t i, len;
if (tag == TAG_SVEC)
len = read_uint8(s->s);
else
len = read_int32(s->s);
jl_svec_t *sv = jl_alloc_svec(len);
if (loc != NULL)
*loc = (jl_value_t*)sv;
arraylist_push(&backref_list, (jl_value_t*)sv);
jl_value_t **data = jl_svec_data(sv);
for (i = 0; i < len; i++) {
data[i] = jl_deserialize_value(s, &data[i]);
}
return (jl_value_t*)sv;
}
static jl_value_t *jl_deserialize_value_symbol(jl_serializer_state *s, uint8_t tag) JL_GC_DISABLED
{
size_t len;
if (tag == TAG_SYMBOL)
len = read_uint8(s->s);
else
len = read_int32(s->s);
char *name = (char*)(len >= 256 ? malloc_s(len + 1) : alloca(len + 1));
ios_readall(s->s, name, len);
name[len] = '\0';
jl_value_t *sym = (jl_value_t*)jl_symbol(name);
if (len >= 256)
free(name);
arraylist_push(&backref_list, sym);
return sym;
}
static jl_value_t *jl_deserialize_value_array(jl_serializer_state *s, uint8_t tag) JL_GC_DISABLED
{
int16_t i, ndims;
int isptr, isunion, hasptr, elsize;
if (tag == TAG_ARRAY1D) {
ndims = 1;
elsize = read_uint8(s->s);
isptr = (elsize >> 7) & 1;
hasptr = (elsize >> 6) & 1;
isunion = (elsize >> 5) & 1;
elsize = elsize & 0x1f;
}
else {
ndims = read_uint16(s->s);
elsize = read_uint16(s->s);
isptr = (elsize >> 15) & 1;
hasptr = (elsize >> 14) & 1;
isunion = (elsize >> 13) & 1;
elsize = elsize & 0x1fff;
}
uintptr_t pos = backref_list.len;
arraylist_push(&backref_list, NULL);
size_t *dims = (size_t*)alloca(ndims * sizeof(size_t));
for (i = 0; i < ndims; i++) {
dims[i] = jl_unbox_long(jl_deserialize_value(s, NULL));
}
jl_array_t *a = jl_new_array_for_deserialization(
(jl_value_t*)NULL, ndims, dims, !isptr, hasptr, isunion, elsize);
backref_list.items[pos] = a;
jl_value_t *aty = jl_deserialize_value(s, &jl_astaggedvalue(a)->type);
jl_set_typeof(a, aty);
if (a->flags.ptrarray) {
jl_value_t **data = (jl_value_t**)jl_array_data(a);
size_t i, numel = jl_array_len(a);
for (i = 0; i < numel; i++) {
data[i] = jl_deserialize_value(s, &data[i]);
//if (data[i]) // not needed because `a` is new (gc is disabled)
// jl_gc_wb(a, data[i]);
}
assert(jl_astaggedvalue(a)->bits.gc == GC_CLEAN); // gc is disabled
}
else if (a->flags.hasptr) {
size_t i, numel = jl_array_len(a);
char *data = (char*)jl_array_data(a);
uint16_t elsz = a->elsize;
jl_datatype_t *et = (jl_datatype_t*)jl_tparam0(jl_typeof(a));
size_t j, np = et->layout->npointers;
for (i = 0; i < numel; i++) {
char *start = data;
for (j = 0; j < np; j++) {
uint32_t ptr = jl_ptr_offset(et, j);
jl_value_t **fld = &((jl_value_t**)data)[ptr];
if ((char*)fld != start)
ios_readall(s->s, start, (const char*)fld - start);
*fld = jl_deserialize_value(s, fld);
//if (*fld) // not needed because `a` is new (gc is disabled)
// jl_gc_wb(a, *fld);
start = (char*)&fld[1];
}
data += elsz;
if (data != start)
ios_readall(s->s, start, data - start);
}
assert(jl_astaggedvalue(a)->bits.gc == GC_CLEAN); // gc is disabled
}
else {
size_t extra = jl_array_isbitsunion(a) ? jl_array_len(a) : 0;
size_t tot = jl_array_len(a) * a->elsize + extra;
ios_readall(s->s, (char*)jl_array_data(a), tot);
}
return (jl_value_t*)a;
}
static jl_value_t *jl_deserialize_value_method(jl_serializer_state *s, jl_value_t **loc) JL_GC_DISABLED
{
jl_method_t *m =
(jl_method_t*)jl_gc_alloc(s->ptls, sizeof(jl_method_t),
jl_method_type);
memset(m, 0, sizeof(jl_method_t));
uintptr_t pos = backref_list.len;
arraylist_push(&backref_list, m);
m->sig = (jl_value_t*)jl_deserialize_value(s, (jl_value_t**)&m->sig);
jl_gc_wb(m, m->sig);
m->module = (jl_module_t*)jl_deserialize_value(s, (jl_value_t**)&m->module);
jl_gc_wb(m, m->module);
int serialization_mode = read_uint8(s->s);
if (serialization_mode & METHOD_EXTERNAL_MT) {
jl_module_t *mt_mod = (jl_module_t*)jl_deserialize_value(s, NULL);
jl_sym_t *mt_name = (jl_sym_t*)jl_deserialize_value(s, NULL);
m->external_mt = jl_get_global(mt_mod, mt_name);
jl_gc_wb(m, m->external_mt);
assert(jl_typeis(m->external_mt, jl_methtable_type));
}
else {
m->external_mt = jl_deserialize_value(s, &m->external_mt);
jl_gc_wb(m, m->external_mt);
}
if (!(serialization_mode & METHOD_INTERNAL)) {
assert(loc != NULL && loc != HT_NOTFOUND);
arraylist_push(&flagref_list, loc);
arraylist_push(&flagref_list, (void*)pos);
return (jl_value_t*)m;
}
m->specializations = (jl_svec_t*)jl_deserialize_value(s, (jl_value_t**)&m->specializations);
jl_gc_wb(m, m->specializations);
m->speckeyset = (jl_array_t*)jl_deserialize_value(s, (jl_value_t**)&m->speckeyset);
jl_gc_wb(m, m->speckeyset);
m->name = (jl_sym_t*)jl_deserialize_value(s, NULL);
jl_gc_wb(m, m->name);
m->file = (jl_sym_t*)jl_deserialize_value(s, NULL);
m->line = read_int32(s->s);
m->primary_world = jl_world_counter;
m->deleted_world = ~(size_t)0;
m->called = read_int32(s->s);
m->nargs = read_int32(s->s);
m->nospecialize = read_int32(s->s);
m->nkw = read_int32(s->s);
m->isva = read_int8(s->s);
m->pure = read_int8(s->s);
m->is_for_opaque_closure = read_int8(s->s);
m->aggressive_constprop = read_int8(s->s);
m->slot_syms = jl_deserialize_value(s, (jl_value_t**)&m->slot_syms);
jl_gc_wb(m, m->slot_syms);
m->roots = (jl_array_t*)jl_deserialize_value(s, (jl_value_t**)&m->roots);
if (m->roots)
jl_gc_wb(m, m->roots);
m->ccallable = (jl_svec_t*)jl_deserialize_value(s, (jl_value_t**)&m->ccallable);
if (m->ccallable) {
jl_gc_wb(m, m->ccallable);
arraylist_push(&ccallable_list, m->ccallable);
}
m->source = jl_deserialize_value(s, &m->source);
if (m->source)
jl_gc_wb(m, m->source);
m->unspecialized = (jl_method_instance_t*)jl_deserialize_value(s, (jl_value_t**)&m->unspecialized);
if (m->unspecialized)
jl_gc_wb(m, m->unspecialized);
m->generator = jl_deserialize_value(s, (jl_value_t**)&m->generator);
if (m->generator)
jl_gc_wb(m, m->generator);
m->invokes = jl_deserialize_value(s, (jl_value_t**)&m->invokes);
jl_gc_wb(m, m->invokes);
m->recursion_relation = jl_deserialize_value(s, (jl_value_t**)&m->recursion_relation);
if (m->recursion_relation)
jl_gc_wb(m, m->recursion_relation);
JL_MUTEX_INIT(&m->writelock);
return (jl_value_t*)m;
}
static jl_value_t *jl_deserialize_value_method_instance(jl_serializer_state *s, jl_value_t **loc) JL_GC_DISABLED
{
jl_method_instance_t *mi =
(jl_method_instance_t*)jl_gc_alloc(s->ptls, sizeof(jl_method_instance_t),
jl_method_instance_type);
memset(mi, 0, sizeof(jl_method_instance_t));
uintptr_t pos = backref_list.len;
arraylist_push(&backref_list, mi);
int internal = read_uint8(s->s);
mi->specTypes = (jl_value_t*)jl_deserialize_value(s, (jl_value_t**)&mi->specTypes);
jl_gc_wb(mi, mi->specTypes);
mi->def.value = jl_deserialize_value(s, &mi->def.value);
jl_gc_wb(mi, mi->def.value);
if (!internal) {
assert(loc != NULL && loc != HT_NOTFOUND);
arraylist_push(&flagref_list, loc);
arraylist_push(&flagref_list, (void*)pos);
return (jl_value_t*)mi;
}
if (internal == 1) {
mi->uninferred = jl_deserialize_value(s, &mi->uninferred);
jl_gc_wb(mi, mi->uninferred);
}
mi->sparam_vals = (jl_svec_t*)jl_deserialize_value(s, (jl_value_t**)&mi->sparam_vals);
jl_gc_wb(mi, mi->sparam_vals);
mi->backedges = (jl_array_t*)jl_deserialize_value(s, (jl_value_t**)&mi->backedges);
if (mi->backedges)
jl_gc_wb(mi, mi->backedges);
mi->callbacks = (jl_array_t*)jl_deserialize_value(s, (jl_value_t**)&mi->callbacks);
if (mi->callbacks)
jl_gc_wb(mi, mi->callbacks);
mi->cache = (jl_code_instance_t*)jl_deserialize_value(s, (jl_value_t**)&mi->cache);
if (mi->cache)
jl_gc_wb(mi, mi->cache);
return (jl_value_t*)mi;
}
static jl_value_t *jl_deserialize_value_code_instance(jl_serializer_state *s, jl_value_t **loc) JL_GC_DISABLED
{
jl_code_instance_t *codeinst =
(jl_code_instance_t*)jl_gc_alloc(s->ptls, sizeof(jl_code_instance_t), jl_code_instance_type);
memset(codeinst, 0, sizeof(jl_code_instance_t));
arraylist_push(&backref_list, codeinst);
int flags = read_uint8(s->s);
int validate = (flags >> 0) & 3;
int constret = (flags >> 2) & 1;
codeinst->def = (jl_method_instance_t*)jl_deserialize_value(s, (jl_value_t**)&codeinst->def);
jl_gc_wb(codeinst, codeinst->def);
codeinst->inferred = jl_deserialize_value(s, &codeinst->inferred);
jl_gc_wb(codeinst, codeinst->inferred);
codeinst->rettype_const = jl_deserialize_value(s, &codeinst->rettype_const);
if (codeinst->rettype_const)
jl_gc_wb(codeinst, codeinst->rettype_const);
codeinst->rettype = jl_deserialize_value(s, &codeinst->rettype);
jl_gc_wb(codeinst, codeinst->rettype);
if (constret)
codeinst->invoke = jl_fptr_const_return;
if ((flags >> 3) & 1)
codeinst->precompile = 1;
codeinst->next = (jl_code_instance_t*)jl_deserialize_value(s, (jl_value_t**)&codeinst->next);
jl_gc_wb(codeinst, codeinst->next);
if (validate) {
codeinst->min_world = jl_world_counter;
ptrhash_put(&new_code_instance_validate, codeinst, (void*)(~(uintptr_t)HT_NOTFOUND)); // "HT_FOUND"
}
return (jl_value_t*)codeinst;
}
static jl_value_t *jl_deserialize_value_module(jl_serializer_state *s) JL_GC_DISABLED
{
uintptr_t pos = backref_list.len;
arraylist_push(&backref_list, NULL);
jl_sym_t *mname = (jl_sym_t*)jl_deserialize_value(s, NULL);
int ref_only = read_uint8(s->s);
if (ref_only) {
jl_value_t *m_ref;
if (ref_only == 1)
m_ref = jl_get_global((jl_module_t*)jl_deserialize_value(s, NULL), mname);
else
m_ref = jl_array_ptr_ref(s->loaded_modules_array, read_int32(s->s));
backref_list.items[pos] = m_ref;
return m_ref;
}
jl_module_t *m = jl_new_module(mname);
backref_list.items[pos] = m;
m->parent = (jl_module_t*)jl_deserialize_value(s, (jl_value_t**)&m->parent);
jl_gc_wb(m, m->parent);
while (1) {
jl_sym_t *asname = (jl_sym_t*)jl_deserialize_value(s, NULL);
if (asname == NULL)
break;
jl_binding_t *b = jl_get_binding_wr(m, asname, 1);
b->name = (jl_sym_t*)jl_deserialize_value(s, (jl_value_t**)&b->name);
b->value = jl_deserialize_value(s, &b->value);
if (b->value != NULL) jl_gc_wb(m, b->value);
b->globalref = jl_deserialize_value(s, &b->globalref);
if (b->globalref != NULL) jl_gc_wb(m, b->globalref);
b->owner = (jl_module_t*)jl_deserialize_value(s, (jl_value_t**)&b->owner);
if (b->owner != NULL) jl_gc_wb(m, b->owner);
int8_t flags = read_int8(s->s);
b->deprecated = (flags>>3) & 1;
b->constp = (flags>>2) & 1;
b->exportp = (flags>>1) & 1;
b->imported = (flags) & 1;
}
size_t i = m->usings.len;
size_t ni = read_int32(s->s);
arraylist_grow(&m->usings, ni);
ni += i;
while (i < ni) {
m->usings.items[i] = jl_deserialize_value(s, (jl_value_t**)&m->usings.items[i]);
i++;
}
m->istopmod = read_uint8(s->s);
m->uuid.hi = read_uint64(s->s);
m->uuid.lo = read_uint64(s->s);
m->build_id = read_uint64(s->s);
m->counter = read_int32(s->s);
m->nospecialize = read_int32(s->s);
m->optlevel = read_int8(s->s);
m->compile = read_int8(s->s);
m->infer = read_int8(s->s);
m->primary_world = jl_world_counter;
return (jl_value_t*)m;
}
static jl_value_t *jl_deserialize_value_singleton(jl_serializer_state *s, jl_value_t **loc) JL_GC_DISABLED
{
jl_value_t *v = (jl_value_t*)jl_gc_alloc(s->ptls, 0, NULL);
uintptr_t pos = backref_list.len;
arraylist_push(&backref_list, (void*)v);
// TODO: optimize the case where the value can easily be obtained
// from an external module (tag == 6) as dt->instance
assert(loc != HT_NOTFOUND);
// if loc == NULL, then the caller can't provide the address where the instance will be
// stored. this happens if a field might store a 0-size value, but the field itself is
// not 0 size, e.g. `::Union{Int,Nothing}`
if (loc != NULL) {
arraylist_push(&flagref_list, loc);
arraylist_push(&flagref_list, (void*)pos);
}
jl_datatype_t *dt = (jl_datatype_t*)jl_deserialize_value(s, (jl_value_t**)HT_NOTFOUND); // no loc, since if dt is replaced, then dt->instance would be also
jl_set_typeof(v, dt);
if (dt->instance == NULL)
return v;
return dt->instance;
}
static void jl_deserialize_struct(jl_serializer_state *s, jl_value_t *v) JL_GC_DISABLED
{
jl_datatype_t *dt = (jl_datatype_t*)jl_typeof(v);
char *data = (char*)jl_data_ptr(v);
size_t i, np = dt->layout->npointers;
char *start = data;
for (i = 0; i < np; i++) {
uint32_t ptr = jl_ptr_offset(dt, i);
jl_value_t **fld = &((jl_value_t**)data)[ptr];
if ((char*)fld != start)
ios_readall(s->s, start, (const char*)fld - start);
*fld = jl_deserialize_value(s, fld);
//if (*fld)// a is new (gc is disabled)
// jl_gc_wb(a, *fld);
start = (char*)&fld[1];
}
data += jl_datatype_size(dt);
if (data != start)
ios_readall(s->s, start, data - start);
if (dt == jl_typemap_entry_type) {
jl_typemap_entry_t *entry = (jl_typemap_entry_t*)v;
if (entry->max_world == ~(size_t)0) {
if (entry->min_world > 1) {
// update world validity to reflect current state of the counter
entry->min_world = jl_world_counter;
}
}
else {
// garbage entry - delete it :(
entry->min_world = 1;
entry->max_world = 0;
}
}
}
static jl_value_t *jl_deserialize_value_any(jl_serializer_state *s, uint8_t tag, jl_value_t **loc) JL_GC_DISABLED
{
int32_t sz = (tag == TAG_SHORT_GENERAL ? read_uint8(s->s) : read_int32(s->s));
jl_value_t *v = jl_gc_alloc(s->ptls, sz, NULL);
jl_set_typeof(v, (void*)(intptr_t)0x50);
uintptr_t pos = backref_list.len;
arraylist_push(&backref_list, v);
jl_datatype_t *dt = (jl_datatype_t*)jl_deserialize_value(s, &jl_astaggedvalue(v)->type);
assert(sz != 0 || loc);
if (dt == jl_typename_type) {
int internal = read_uint8(s->s);
jl_typename_t *tn;
if (internal) {
tn = (jl_typename_t*)jl_gc_alloc(
s->ptls, sizeof(jl_typename_t), jl_typename_type);
memset(tn, 0, sizeof(jl_typename_t));
tn->cache = jl_emptysvec; // the cache is refilled later (tag 5)
tn->linearcache = jl_emptysvec; // the cache is refilled later (tag 5)
backref_list.items[pos] = tn;
}
jl_module_t *m = (jl_module_t*)jl_deserialize_value(s, NULL);
jl_sym_t *sym = (jl_sym_t*)jl_deserialize_value(s, NULL);
if (internal) {
tn->module = m;
tn->name = sym;
tn->names = (jl_svec_t*)jl_deserialize_value(s, (jl_value_t**)&tn->names);
jl_gc_wb(tn, tn->names);
tn->wrapper = jl_deserialize_value(s, &tn->wrapper);
jl_gc_wb(tn, tn->wrapper);
tn->mt = (jl_methtable_t*)jl_deserialize_value(s, (jl_value_t**)&tn->mt);
jl_gc_wb(tn, tn->mt);
ios_read(s->s, (char*)&tn->hash, sizeof(tn->hash));
int8_t flags = read_int8(s->s);
tn->abstract = flags & 1;
tn->mutabl = (flags>>1) & 1;
tn->mayinlinealloc = (flags>>2) & 1;
if (tn->abstract)
tn->n_uninitialized = 0;
else
tn->n_uninitialized = read_uint16(s->s);
size_t nfields = read_int32(s->s);
if (nfields) {
tn->atomicfields = (uint32_t*)malloc(nfields);
ios_read(s->s, (char*)tn->atomicfields, nfields);
}
}
else {
jl_datatype_t *dt = (jl_datatype_t*)jl_unwrap_unionall(jl_get_global(m, sym));
assert(jl_is_datatype(dt));
tn = dt->name;
backref_list.items[pos] = tn;
}
return (jl_value_t*)tn;
}
jl_set_typeof(v, dt);
if ((jl_value_t*)dt == jl_bigint_type) {
jl_value_t *sizefield = jl_deserialize_value(s, NULL);
int32_t sz = jl_unbox_int32(sizefield);
int32_t nw = (sz == 0 ? 1 : (sz < 0 ? -sz : sz));
size_t nb = nw * gmp_limb_size;
void *buf = jl_gc_counted_malloc(nb);
if (buf == NULL)
jl_throw(jl_memory_exception);
ios_readall(s->s, (char*)buf, nb);
jl_set_nth_field(v, 0, jl_box_int32(nw));
jl_set_nth_field(v, 1, sizefield);
jl_set_nth_field(v, 2, jl_box_voidpointer(buf));
}
else {
jl_deserialize_struct(s, v);
}
return v;
}
static jl_value_t *jl_deserialize_value(jl_serializer_state *s, jl_value_t **loc) JL_GC_DISABLED
{
assert(!ios_eof(s->s));
jl_value_t *v;
size_t n;
uintptr_t pos;
uint8_t tag = read_uint8(s->s);
if (tag > LAST_TAG)
return deser_tag[tag];
switch (tag) {
case TAG_NULL: return NULL;
case 0:
tag = read_uint8(s->s);
return deser_tag[tag];
case TAG_BACKREF: JL_FALLTHROUGH; case TAG_SHORT_BACKREF: ;
uintptr_t offs = (tag == TAG_BACKREF) ? read_int32(s->s) : read_uint16(s->s);
int isflagref = 0;
isflagref = !!(offs & 1);
offs >>= 1;
// assert(offs >= 0); // offs is unsigned so this is always true
assert(offs < backref_list.len);
jl_value_t *bp = (jl_value_t*)backref_list.items[offs];
assert(bp);
if (isflagref && loc != HT_NOTFOUND) {
if (loc != NULL) {
// as in jl_deserialize_value_singleton, the caller won't have a place to
// store this reference given a field type like Union{Int,Nothing}
arraylist_push(&flagref_list, loc);
arraylist_push(&flagref_list, (void*)(uintptr_t)-1);
}
}
return (jl_value_t*)bp;
case TAG_SVEC: JL_FALLTHROUGH; case TAG_LONG_SVEC:
return jl_deserialize_value_svec(s, tag, loc);
case TAG_COMMONSYM:
return deser_symbols[read_uint8(s->s)];
case TAG_SYMBOL: JL_FALLTHROUGH; case TAG_LONG_SYMBOL:
return jl_deserialize_value_symbol(s, tag);
case TAG_ARRAY: JL_FALLTHROUGH; case TAG_ARRAY1D:
return jl_deserialize_value_array(s, tag);
case TAG_UNIONALL:
pos = backref_list.len;
arraylist_push(&backref_list, NULL);
if (read_uint8(s->s)) {
jl_module_t *m = (jl_module_t*)jl_deserialize_value(s, NULL);
jl_sym_t *sym = (jl_sym_t*)jl_deserialize_value(s, NULL);
jl_value_t *v = jl_get_global(m, sym);
assert(jl_is_unionall(v));
backref_list.items[pos] = v;
return v;
}
v = jl_gc_alloc(s->ptls, sizeof(jl_unionall_t), jl_unionall_type);
backref_list.items[pos] = v;
((jl_unionall_t*)v)->var = (jl_tvar_t*)jl_deserialize_value(s, (jl_value_t**)&((jl_unionall_t*)v)->var);
jl_gc_wb(v, ((jl_unionall_t*)v)->var);
((jl_unionall_t*)v)->body = jl_deserialize_value(s, &((jl_unionall_t*)v)->body);
jl_gc_wb(v, ((jl_unionall_t*)v)->body);
return v;
case TAG_TVAR:
v = jl_gc_alloc(s->ptls, sizeof(jl_tvar_t), jl_tvar_type);
jl_tvar_t *tv = (jl_tvar_t*)v;
arraylist_push(&backref_list, tv);
tv->name = (jl_sym_t*)jl_deserialize_value(s, NULL);
jl_gc_wb(tv, tv->name);
tv->lb = jl_deserialize_value(s, &tv->lb);
jl_gc_wb(tv, tv->lb);
tv->ub = jl_deserialize_value(s, &tv->ub);
jl_gc_wb(tv, tv->ub);
return (jl_value_t*)tv;
case TAG_METHOD:
return jl_deserialize_value_method(s, loc);
case TAG_METHOD_INSTANCE:
return jl_deserialize_value_method_instance(s, loc);
case TAG_CODE_INSTANCE:
return jl_deserialize_value_code_instance(s, loc);
case TAG_MODULE:
return jl_deserialize_value_module(s);
case TAG_SHORTER_INT64:
v = jl_box_int64((int16_t)read_uint16(s->s));
arraylist_push(&backref_list, v);
return v;
case TAG_SHORT_INT64:
v = jl_box_int64(read_int32(s->s));
arraylist_push(&backref_list, v);
return v;
case TAG_INT64:
v = jl_box_int64((int64_t)read_uint64(s->s));
arraylist_push(&backref_list, v);
return v;
case TAG_SHORT_INT32:
v = jl_box_int32((int16_t)read_uint16(s->s));
arraylist_push(&backref_list, v);
return v;
case TAG_INT32:
v = jl_box_int32(read_int32(s->s));
arraylist_push(&backref_list, v);
return v;
case TAG_UINT8:
return jl_box_uint8(read_uint8(s->s));
case TAG_SINGLETON:
return jl_deserialize_value_singleton(s, loc);
case TAG_CORE:
return (jl_value_t*)jl_core_module;
case TAG_BASE:
return (jl_value_t*)jl_base_module;
case TAG_CNULL:
v = jl_gc_alloc(s->ptls, sizeof(void*), NULL);
jl_set_typeof(v, (void*)(intptr_t)0x50);
*(void**)v = NULL;
uintptr_t pos = backref_list.len;
arraylist_push(&backref_list, v);
jl_set_typeof(v, jl_deserialize_value(s, &jl_astaggedvalue(v)->type));
return v;
case TAG_BITYPENAME:
v = deser_tag[read_uint8(s->s)];
return (jl_value_t*)((jl_datatype_t*)jl_unwrap_unionall(v))->name;
case TAG_STRING:
n = read_int32(s->s);
v = jl_alloc_string(n);
arraylist_push(&backref_list, v);
ios_readall(s->s, jl_string_data(v), n);
return v;
case TAG_DATATYPE:
pos = backref_list.len;
arraylist_push(&backref_list, NULL);
return jl_deserialize_datatype(s, pos, loc);
default:
assert(tag == TAG_GENERAL || tag == TAG_SHORT_GENERAL);
return jl_deserialize_value_any(s, tag, loc);
}
}
static void jl_insert_methods(jl_array_t *list)
{
size_t i, l = jl_array_len(list);
for (i = 0; i < l; i += 2) {
jl_method_t *meth = (jl_method_t*)jl_array_ptr_ref(list, i);
assert(!meth->is_for_opaque_closure);
jl_tupletype_t *simpletype = (jl_tupletype_t*)jl_array_ptr_ref(list, i + 1);
assert(jl_is_method(meth));
jl_methtable_t *mt = jl_method_get_table(meth);
assert((jl_value_t*)mt != jl_nothing);
jl_method_table_insert(mt, meth, simpletype);
}
}
// verify that these edges intersect with the same methods as before
static void jl_verify_edges(jl_array_t *targets, jl_array_t **pvalids)
{
size_t i, l = jl_array_len(targets) / 2;
jl_array_t *valids = jl_alloc_array_1d(jl_array_uint8_type, l);
memset(jl_array_data(valids), 1, l);
jl_value_t *loctag = NULL;
JL_GC_PUSH1(&loctag);
*pvalids = valids;
for (i = 0; i < l; i++) {
jl_value_t *callee = jl_array_ptr_ref(targets, i * 2);
jl_method_instance_t *callee_mi = (jl_method_instance_t*)callee;
jl_value_t *sig;
if (jl_is_method_instance(callee)) {
sig = callee_mi->specTypes;
}
else {
sig = callee;
}
jl_array_t *expected = (jl_array_t*)jl_array_ptr_ref(targets, i * 2 + 1);
assert(jl_is_array(expected));
int valid = 1;
size_t min_valid = 0;
size_t max_valid = ~(size_t)0;
int ambig = 0;
// TODO: possibly need to included ambiguities too (for the optimizer correctness)?
jl_value_t *matches = jl_matching_methods((jl_tupletype_t*)sig, jl_nothing, -1, 0, jl_world_counter, &min_valid, &max_valid, &ambig);
if (matches == jl_false || jl_array_len(matches) != jl_array_len(expected)) {
valid = 0;
}
else {
size_t j, k, l = jl_array_len(expected);
for (k = 0; k < jl_array_len(matches); k++) {
jl_method_match_t *match = (jl_method_match_t*)jl_array_ptr_ref(matches, k);
jl_method_t *m = match->method;
for (j = 0; j < l; j++) {
if (m == (jl_method_t*)jl_array_ptr_ref(expected, j))
break;
}
if (j == l) {
// intersection has a new method or a method was
// deleted--this is now probably no good, just invalidate
// everything about it now
valid = 0;
break;
}
}
}
jl_array_uint8_set(valids, i, valid);
if (!valid && _jl_debug_method_invalidation) {
jl_array_ptr_1d_push(_jl_debug_method_invalidation, (jl_value_t*)callee);
loctag = jl_cstr_to_string("insert_backedges_callee");
jl_array_ptr_1d_push(_jl_debug_method_invalidation, loctag);
}
}
JL_GC_POP();
}
static void jl_insert_backedges(jl_array_t *list, jl_array_t *targets)
{
// map(enable, ((list[i] => targets[list[i + 1] .* 2]) for i in 1:2:length(list) if all(valids[list[i + 1]])))
size_t i, l = jl_array_len(list);
jl_array_t *valids = NULL;
jl_value_t *loctag = NULL;
JL_GC_PUSH2(&valids, &loctag);
jl_verify_edges(targets, &valids);
for (i = 0; i < l; i += 2) {
jl_method_instance_t *caller = (jl_method_instance_t*)jl_array_ptr_ref(list, i);
assert(jl_is_method_instance(caller) && jl_is_method(caller->def.method));
assert(caller->def.method->primary_world == jl_world_counter); // caller should be new
jl_array_t *idxs_array = (jl_array_t*)jl_array_ptr_ref(list, i + 1);
assert(jl_isa((jl_value_t*)idxs_array, jl_array_int32_type));
int32_t *idxs = (int32_t*)jl_array_data(idxs_array);
int valid = 1;
size_t j;
for (j = 0; valid && j < jl_array_len(idxs_array); j++) {
int32_t idx = idxs[j];
valid = jl_array_uint8_ref(valids, idx);
}
if (valid) {
// if this callee is still valid, add all the backedges
for (j = 0; j < jl_array_len(idxs_array); j++) {
int32_t idx = idxs[j];
jl_value_t *callee = jl_array_ptr_ref(targets, idx * 2);
if (jl_is_method_instance(callee)) {
jl_method_instance_add_backedge((jl_method_instance_t*)callee, caller);
}
else {
jl_methtable_t *mt = jl_method_table_for(callee);
assert((jl_value_t*)mt != jl_nothing);
jl_method_table_add_backedge(mt, callee, (jl_value_t*)caller);
}
}
// then enable it
jl_code_instance_t *codeinst = caller->cache;
while (codeinst) {
if (codeinst->min_world > 0)
codeinst->max_world = ~(size_t)0;
ptrhash_remove(&new_code_instance_validate, codeinst); // mark it as handled
codeinst = jl_atomic_load_relaxed(&codeinst->next);
}
}
else {
jl_code_instance_t *codeinst = caller->cache;
while (codeinst) {
ptrhash_remove(&new_code_instance_validate, codeinst); // should be left invalid
codeinst = jl_atomic_load_relaxed(&codeinst->next);
}
if (_jl_debug_method_invalidation) {
jl_array_ptr_1d_push(_jl_debug_method_invalidation, (jl_value_t*)caller);
loctag = jl_cstr_to_string("insert_backedges");
jl_array_ptr_1d_push(_jl_debug_method_invalidation, loctag);
}
}
}
JL_GC_POP();
}
static void validate_new_code_instances(void)
{
size_t i;
for (i = 0; i < new_code_instance_validate.size; i += 2) {
if (new_code_instance_validate.table[i+1] != HT_NOTFOUND) {
((jl_code_instance_t*)new_code_instance_validate.table[i])->max_world = ~(size_t)0;
}
}
}
static jl_value_t *read_verify_mod_list(ios_t *s, jl_array_t *mod_list)
{
if (!jl_main_module->build_id) {
return jl_get_exceptionf(jl_errorexception_type,
"Main module uuid state is invalid for module deserialization.");
}
size_t i, l = jl_array_len(mod_list);
for (i = 0; ; i++) {
size_t len = read_int32(s);
if (len == 0 && i == l)
return NULL; // success
if (len == 0 || i == l)
return jl_get_exceptionf(jl_errorexception_type, "Wrong number of entries in module list.");
char *name = (char*)alloca(len + 1);
ios_readall(s, name, len);
name[len] = '\0';
jl_uuid_t uuid;
uuid.hi = read_uint64(s);
uuid.lo = read_uint64(s);
uint64_t build_id = read_uint64(s);
jl_sym_t *sym = _jl_symbol(name, len);
jl_module_t *m = (jl_module_t*)jl_array_ptr_ref(mod_list, i);
if (!m || !jl_is_module(m) || m->uuid.hi != uuid.hi || m->uuid.lo != uuid.lo || m->name != sym || m->build_id != build_id) {
return jl_get_exceptionf(jl_errorexception_type,
"Invalid input in module list: expected %s.", name);
}
}
}
static int readstr_verify(ios_t *s, const char *str)
{
size_t i, len = strlen(str);
for (i = 0; i < len; ++i)
if ((char)read_uint8(s) != str[i])
return 0;
return 1;
}
JL_DLLEXPORT int jl_read_verify_header(ios_t *s)
{
uint16_t bom;
return (readstr_verify(s, JI_MAGIC) &&
read_uint16(s) == JI_FORMAT_VERSION &&
ios_read(s, (char *) &bom, 2) == 2 && bom == BOM &&
read_uint8(s) == sizeof(void*) &&
readstr_verify(s, JL_BUILD_UNAME) && !read_uint8(s) &&
readstr_verify(s, JL_BUILD_ARCH) && !read_uint8(s) &&
readstr_verify(s, JULIA_VERSION_STRING) && !read_uint8(s) &&
readstr_verify(s, jl_git_branch()) && !read_uint8(s) &&
readstr_verify(s, jl_git_commit()) && !read_uint8(s));
}
static void jl_finalize_serializer(jl_serializer_state *s)
{
size_t i, l;
// save module initialization order
if (jl_module_init_order != NULL) {
l = jl_array_len(jl_module_init_order);
for (i = 0; i < l; i++) {
// verify that all these modules were saved
assert(ptrhash_get(&backref_table, jl_array_ptr_ref(jl_module_init_order, i)) != HT_NOTFOUND);
}
}
jl_serialize_value(s, jl_module_init_order);
// record list of reinitialization functions
l = reinit_list.len;
for (i = 0; i < l; i += 2) {
write_int32(s->s, (int)((uintptr_t) reinit_list.items[i]));
write_int32(s->s, (int)((uintptr_t) reinit_list.items[i+1]));
}
write_int32(s->s, -1);
}
static void jl_reinit_item(jl_value_t *v, int how, arraylist_t *tracee_list)
{
JL_TRY {
switch (how) {
case 1: { // rehash IdDict
jl_array_t **a = (jl_array_t**)v;
// Assume *a don't need a write barrier
*a = jl_idtable_rehash(*a, jl_array_len(*a));
jl_gc_wb(v, *a);
break;
}
case 2: { // reinsert module v into parent (const)
jl_module_t *mod = (jl_module_t*)v;
if (mod->parent == mod) // top level modules handled by loader
break;
jl_binding_t *b = jl_get_binding_wr(mod->parent, mod->name, 1);
jl_declare_constant(b); // this can throw
if (b->value != NULL) {
if (!jl_is_module(b->value)) {
jl_errorf("Invalid redefinition of constant %s.",
jl_symbol_name(mod->name)); // this also throws
}
if (jl_generating_output() && jl_options.incremental) {
jl_errorf("Cannot replace module %s during incremental precompile.", jl_symbol_name(mod->name));
}
jl_printf(JL_STDERR, "WARNING: replacing module %s.\n", jl_symbol_name(mod->name));
}
b->value = v;
jl_gc_wb_binding(b, v);
break;
}
case 3: { // rehash MethodTable
jl_methtable_t *mt = (jl_methtable_t*)v;
if (tracee_list)
arraylist_push(tracee_list, mt);
break;
}
default:
assert(0 && "corrupt deserialization state");
abort();
}
}
JL_CATCH {
jl_printf((JL_STREAM*)STDERR_FILENO, "WARNING: error while reinitializing value ");
jl_static_show((JL_STREAM*)STDERR_FILENO, v);
jl_printf((JL_STREAM*)STDERR_FILENO, ":\n");
jl_static_show((JL_STREAM*)STDERR_FILENO, jl_current_exception());
jl_printf((JL_STREAM*)STDERR_FILENO, "\n");
jlbacktrace(); // written to STDERR_FILENO
}
}
static jl_array_t *jl_finalize_deserializer(jl_serializer_state *s, arraylist_t *tracee_list)
{
jl_array_t *init_order = (jl_array_t*)jl_deserialize_value(s, NULL);
// run reinitialization functions
int pos = read_int32(s->s);
while (pos != -1) {
jl_reinit_item((jl_value_t*)backref_list.items[pos], read_int32(s->s), tracee_list);
pos = read_int32(s->s);
}
return init_order;
}
JL_DLLEXPORT void jl_init_restored_modules(jl_array_t *init_order)
{
if (!init_order)
return;
int i, l = jl_array_len(init_order);
for (i = 0; i < l; i++) {
jl_value_t *mod = jl_array_ptr_ref(init_order, i);
if (!jl_generating_output() || jl_options.incremental) {
jl_module_run_initializer((jl_module_t*)mod);
}
else {
if (jl_module_init_order == NULL)
jl_module_init_order = jl_alloc_vec_any(0);
jl_array_ptr_1d_push(jl_module_init_order, mod);
}
}
}
// --- entry points ---
JL_DLLEXPORT int jl_save_incremental(const char *fname, jl_array_t *worklist)
{
JL_TIMING(SAVE_MODULE);
ios_t f;
jl_array_t *mod_array = NULL, *udeps = NULL;
if (ios_file(&f, fname, 1, 1, 1, 1) == NULL) {
jl_printf(JL_STDERR, "Cannot open cache file \"%s\" for writing.\n", fname);
return 1;
}
JL_GC_PUSH2(&mod_array, &udeps);
mod_array = jl_get_loaded_modules();
serializer_worklist = worklist;
write_header(&f);
// write description on contents
write_work_list(&f);
// write binary blob from caller
int64_t srctextpos = write_dependency_list(&f, &udeps, mod_array);
// write description of requirements for loading
// this can return errors during deserialize,
// best to keep it early (before any actual initialization)
write_mod_list(&f, mod_array);
arraylist_new(&reinit_list, 0);
htable_new(&edges_map, 0);
htable_new(&backref_table, 5000);
ptrhash_put(&backref_table, jl_main_module, (char*)HT_NOTFOUND + 1);
backref_table_numel = 1;
jl_idtable_type = jl_base_module ? jl_get_global(jl_base_module, jl_symbol("IdDict")) : NULL;
jl_idtable_typename = jl_base_module ? ((jl_datatype_t*)jl_unwrap_unionall((jl_value_t*)jl_idtable_type))->name : NULL;
jl_bigint_type = jl_base_module ? jl_get_global(jl_base_module, jl_symbol("BigInt")) : NULL;
if (jl_bigint_type) {
gmp_limb_size = jl_unbox_long(jl_get_global((jl_module_t*)jl_get_global(jl_base_module, jl_symbol("GMP")),
jl_symbol("BITS_PER_LIMB"))) / 8;
}
int en = jl_gc_enable(0); // edges map is not gc-safe
jl_array_t *lambdas = jl_alloc_vec_any(0);
jl_array_t *edges = jl_alloc_vec_any(0);
jl_array_t *targets = jl_alloc_vec_any(0);
size_t i;
size_t len = jl_array_len(mod_array);
for (i = 0; i < len; i++) {
jl_module_t *m = (jl_module_t*)jl_array_ptr_ref(mod_array, i);
assert(jl_is_module(m));
if (m->parent == m) // some toplevel modules (really just Base) aren't actually
jl_collect_lambdas_from_mod(lambdas, m);
}
jl_collect_methtable_from_mod(lambdas, jl_type_type_mt);
jl_collect_missing_backedges_to_mod(jl_type_type_mt);
jl_collect_methtable_from_mod(lambdas, jl_nonfunction_mt);
jl_collect_missing_backedges_to_mod(jl_nonfunction_mt);
jl_collect_backedges(edges, targets);
jl_serializer_state s = {
&f,
jl_current_task->ptls,
mod_array
};
jl_serialize_value(&s, worklist);
jl_serialize_value(&s, lambdas);
jl_serialize_value(&s, edges);
jl_serialize_value(&s, targets);
jl_finalize_serializer(&s);
serializer_worklist = NULL;
jl_gc_enable(en);
htable_reset(&edges_map, 0);
htable_reset(&backref_table, 0);
arraylist_free(&reinit_list);
// Write the source-text for the dependent files
if (udeps) {
// Go back and update the source-text position to point to the current position
int64_t posfile = ios_pos(&f);
ios_seek(&f, srctextpos);
write_int64(&f, posfile);
ios_seek_end(&f);
// Each source-text file is written as
// int32: length of abspath
// char*: abspath
// uint64: length of src text
// char*: src text
// At the end we write int32(0) as a terminal sentinel.
len = jl_array_len(udeps);
ios_t srctext;
for (i = 0; i < len; i++) {
jl_value_t *deptuple = jl_array_ptr_ref(udeps, i);
jl_value_t *depmod = jl_fieldref(deptuple, 0); // module
// Dependencies declared with `include_dependency` are excluded
// because these may not be Julia code (and could be huge)
if (depmod != (jl_value_t*)jl_main_module) {
jl_value_t *dep = jl_fieldref(deptuple, 1); // file abspath
const char *depstr = jl_string_data(dep);
if (!depstr[0])
continue;
ios_t *srctp = ios_file(&srctext, depstr, 1, 0, 0, 0);
if (!srctp) {
jl_printf(JL_STDERR, "WARNING: could not cache source text for \"%s\".\n",
jl_string_data(dep));
continue;
}
size_t slen = jl_string_len(dep);
write_int32(&f, slen);
ios_write(&f, depstr, slen);
posfile = ios_pos(&f);
write_uint64(&f, 0); // placeholder for length of this file in bytes
uint64_t filelen = (uint64_t) ios_copyall(&f, &srctext);
ios_close(&srctext);
ios_seek(&f, posfile);
write_uint64(&f, filelen);
ios_seek_end(&f);
}
}
}
write_int32(&f, 0); // mark the end of the source text
ios_close(&f);
JL_GC_POP();
return 0;
}
#ifndef JL_NDEBUG
// skip the performance optimizations of jl_types_equal and just use subtyping directly
// one of these types is invalid - that's why we're doing the recache type operation
static int jl_invalid_types_equal(jl_datatype_t *a, jl_datatype_t *b)
{
return jl_subtype((jl_value_t*)a, (jl_value_t*)b) && jl_subtype((jl_value_t*)b, (jl_value_t*)a);
}
STATIC_INLINE jl_value_t *verify_type(jl_value_t *v) JL_NOTSAFEPOINT
{
assert(v && jl_typeof(v) && jl_typeof(jl_typeof(v)) == (jl_value_t*)jl_datatype_type);
return v;
}
#endif
static jl_datatype_t *recache_datatype(jl_datatype_t *dt) JL_GC_DISABLED;
static jl_value_t *recache_type(jl_value_t *p) JL_GC_DISABLED
{
if (jl_is_datatype(p)) {
jl_datatype_t *pdt = (jl_datatype_t*)p;
if (ptrhash_get(&uniquing_table, p) != HT_NOTFOUND) {
p = (jl_value_t*)recache_datatype(pdt);
}
else {
jl_svec_t *tt = pdt->parameters;
// ensure all type parameters are recached
size_t i, l = jl_svec_len(tt);
for (i = 0; i < l; i++)
jl_svecset(tt, i, recache_type(jl_svecref(tt, i)));
ptrhash_put(&uniquing_table, p, p); // ensures this algorithm isn't too exponential
}
}
else if (jl_is_typevar(p)) {
jl_tvar_t *ptv = (jl_tvar_t*)p;
ptv->lb = recache_type(ptv->lb);
ptv->ub = recache_type(ptv->ub);
}
else if (jl_is_uniontype(p)) {
jl_uniontype_t *pu = (jl_uniontype_t*)p;
pu->a = recache_type(pu->a);
pu->b = recache_type(pu->b);
}
else if (jl_is_unionall(p)) {
jl_unionall_t *pa = (jl_unionall_t*)p;
pa->var = (jl_tvar_t*)recache_type((jl_value_t*)pa->var);
pa->body = recache_type(pa->body);
}
else {
jl_datatype_t *pt = (jl_datatype_t*)jl_typeof(p);
jl_datatype_t *cachep = recache_datatype(pt);
if (cachep->instance)
p = cachep->instance;
else if (pt != cachep)
jl_set_typeof(p, cachep);
}
return p;
}
static jl_datatype_t *recache_datatype(jl_datatype_t *dt) JL_GC_DISABLED
{
jl_datatype_t *t; // the type after unique'ing
assert(verify_type((jl_value_t*)dt));
t = (jl_datatype_t*)ptrhash_get(&uniquing_table, dt);
if (t == HT_NOTFOUND)
return dt;
if (t != NULL)
return t;
jl_svec_t *tt = dt->parameters;
// recache all type parameters
size_t i, l = jl_svec_len(tt);
for (i = 0; i < l; i++)
jl_svecset(tt, i, recache_type(jl_svecref(tt, i)));
// then recache the type itself
if (jl_svec_len(tt) == 0) { // jl_cache_type doesn't work if length(parameters) == 0
t = dt;
}
else {
t = jl_lookup_cache_type_(dt);
if (t == NULL) {
jl_cache_type_(dt);
t = dt;
}
assert(t->hash == dt->hash);
assert(jl_invalid_types_equal(t, dt));
}
ptrhash_put(&uniquing_table, dt, t);
return t;
}
static void jl_recache_types(void) JL_GC_DISABLED
{
size_t i;
// first rewrite all the unique'd objects
for (i = 0; i < flagref_list.len; i += 2) {
jl_value_t **loc = (jl_value_t**)flagref_list.items[i + 0];
int offs = (int)(intptr_t)flagref_list.items[i + 1];
jl_value_t *o = loc ? *loc : (jl_value_t*)backref_list.items[offs];
if (!jl_is_method(o) && !jl_is_method_instance(o)) {
jl_datatype_t *dt;
jl_value_t *v;
if (jl_is_datatype(o)) {
dt = (jl_datatype_t*)o;
v = dt->instance;
}
else {
dt = (jl_datatype_t*)jl_typeof(o);
v = o;
}
jl_datatype_t *t = recache_datatype(dt);
if ((jl_value_t*)dt == o && t != dt) {
assert(!type_in_worklist(dt));
if (loc)
*loc = (jl_value_t*)t;
if (offs > 0)
backref_list.items[offs] = t;
}
if (v == o && t->instance != v) {
assert(t->instance);
assert(loc);
*loc = t->instance;
if (offs > 0)
backref_list.items[offs] = t->instance;
}
}
}
// invalidate the old datatypes to help catch errors
for (i = 0; i < uniquing_table.size; i += 2) {
jl_datatype_t *o = (jl_datatype_t*)uniquing_table.table[i];
jl_datatype_t *t = (jl_datatype_t*)uniquing_table.table[i + 1];
if (o != t) {
assert(t != NULL && jl_is_datatype(o));
if (t->instance != o->instance)
jl_set_typeof(o->instance, (void*)(intptr_t)0x20);
jl_set_typeof(o, (void*)(intptr_t)0x10);
}
}
// then do a cleanup pass to drop these from future iterations of flagref_list
i = 0;
while (i < flagref_list.len) {
jl_value_t **loc = (jl_value_t**)flagref_list.items[i + 0];
int offs = (int)(intptr_t)flagref_list.items[i + 1];
jl_value_t *o = loc ? *loc : (jl_value_t*)backref_list.items[offs];
if (jl_is_method(o) || jl_is_method_instance(o)) {
i += 2;
}
else {
// delete this item from the flagref list, so it won't be re-encountered later
flagref_list.len -= 2;
if (i >= flagref_list.len)
break;
flagref_list.items[i + 0] = flagref_list.items[flagref_list.len + 0];
flagref_list.items[i + 1] = flagref_list.items[flagref_list.len + 1];
}
}
}
// look up a method from a previously deserialized dependent module
static jl_method_t *jl_lookup_method(jl_methtable_t *mt, jl_datatype_t *sig, size_t world)
{
if (world < jl_main_module->primary_world)
world = jl_main_module->primary_world;
struct jl_typemap_assoc search = {(jl_value_t*)sig, world, NULL, 0, ~(size_t)0};
jl_typemap_entry_t *entry = jl_typemap_assoc_by_type(mt->defs, &search, /*offs*/0, /*subtype*/0);
return (jl_method_t*)entry->func.value;
}
static jl_method_t *jl_recache_method(jl_method_t *m)
{
assert(!m->is_for_opaque_closure);
jl_datatype_t *sig = (jl_datatype_t*)m->sig;
jl_methtable_t *mt = jl_method_get_table(m);
assert((jl_value_t*)mt != jl_nothing);
jl_set_typeof(m, (void*)(intptr_t)0x30); // invalidate the old value to help catch errors
jl_method_t *_new = jl_lookup_method(mt, sig, m->module->primary_world);
return _new;
}
static jl_value_t *jl_recache_other_(jl_value_t *o);
static jl_method_instance_t *jl_recache_method_instance(jl_method_instance_t *mi)
{
jl_method_t *m = mi->def.method;
m = (jl_method_t*)jl_recache_other_((jl_value_t*)m);
assert(jl_is_method(m));
jl_datatype_t *argtypes = (jl_datatype_t*)mi->specTypes;
jl_set_typeof(mi, (void*)(intptr_t)0x40); // invalidate the old value to help catch errors
jl_svec_t *env = jl_emptysvec;
jl_value_t *ti = jl_type_intersection_env((jl_value_t*)argtypes, (jl_value_t*)m->sig, &env);
//assert(ti != jl_bottom_type); (void)ti;
if (ti == jl_bottom_type)
env = jl_emptysvec; // the intersection may fail now if the type system had made an incorrect subtype env in the past
jl_method_instance_t *_new = jl_specializations_get_linfo(m, (jl_value_t*)argtypes, env);
return _new;
}
static jl_value_t *jl_recache_other_(jl_value_t *o)
{
jl_value_t *newo = (jl_value_t*)ptrhash_get(&uniquing_table, o);
if (newo != HT_NOTFOUND)
return newo;
if (jl_is_method(o)) {
// lookup the real Method based on the placeholder sig
newo = (jl_value_t*)jl_recache_method((jl_method_t*)o);
ptrhash_put(&uniquing_table, newo, newo);
}
else if (jl_is_method_instance(o)) {
// lookup the real MethodInstance based on the placeholder specTypes
newo = (jl_value_t*)jl_recache_method_instance((jl_method_instance_t*)o);
}
else {
abort();
}
ptrhash_put(&uniquing_table, o, newo);
return newo;
}
static void jl_recache_other(void)
{
size_t i = 0;
while (i < flagref_list.len) {
jl_value_t **loc = (jl_value_t**)flagref_list.items[i + 0];
int offs = (int)(intptr_t)flagref_list.items[i + 1];
jl_value_t *o = loc ? *loc : (jl_value_t*)backref_list.items[offs];
i += 2;
jl_value_t *newo = jl_recache_other_(o);
if (loc)
*loc = newo;
if (offs > 0)
backref_list.items[offs] = newo;
}
flagref_list.len = 0;
}
static int trace_method(jl_typemap_entry_t *entry, void *closure)
{
jl_call_tracer(jl_newmeth_tracer, (jl_value_t*)entry->func.method);
return 1;
}
static jl_value_t *_jl_restore_incremental(ios_t *f, jl_array_t *mod_array)
{
JL_TIMING(LOAD_MODULE);
jl_task_t *ct = jl_current_task;
if (ios_eof(f) || !jl_read_verify_header(f)) {
ios_close(f);
return jl_get_exceptionf(jl_errorexception_type,
"Precompile file header verification checks failed.");
}
{ // skip past the mod list
size_t len;
while ((len = read_int32(f)))
ios_skip(f, len + 3 * sizeof(uint64_t));
}
{ // skip past the dependency list
size_t deplen = read_uint64(f);
ios_skip(f, deplen);
}
jl_bigint_type = jl_base_module ? jl_get_global(jl_base_module, jl_symbol("BigInt")) : NULL;
if (jl_bigint_type) {
gmp_limb_size = jl_unbox_long(jl_get_global((jl_module_t*)jl_get_global(jl_base_module, jl_symbol("GMP")),
jl_symbol("BITS_PER_LIMB"))) / 8;
}
// verify that the system state is valid
jl_value_t *verify_fail = read_verify_mod_list(f, mod_array);
if (verify_fail) {
ios_close(f);
return verify_fail;
}
// prepare to deserialize
int en = jl_gc_enable(0);
jl_gc_enable_finalizers(ct, 0);
++jl_world_counter; // reserve a world age for the deserialization
arraylist_new(&backref_list, 4000);
arraylist_push(&backref_list, jl_main_module);
arraylist_new(&flagref_list, 0);
htable_new(&new_code_instance_validate, 0);
arraylist_new(&ccallable_list, 0);
htable_new(&uniquing_table, 0);
jl_serializer_state s = {
f,
ct->ptls,
mod_array
};
jl_array_t *restored = (jl_array_t*)jl_deserialize_value(&s, (jl_value_t**)&restored);
serializer_worklist = restored;
assert(jl_isa((jl_value_t*)restored, jl_array_any_type));
// get list of external generic functions
jl_value_t *external_methods = jl_deserialize_value(&s, &external_methods);
jl_value_t *external_backedges = jl_deserialize_value(&s, &external_backedges);
jl_value_t *external_edges = jl_deserialize_value(&s, &external_edges);
arraylist_t *tracee_list = NULL;
if (jl_newmeth_tracer)
tracee_list = arraylist_new((arraylist_t*)malloc_s(sizeof(arraylist_t)), 0);
// at this point, the AST is fully reconstructed, but still completely disconnected
// now all of the interconnects will be created
jl_recache_types(); // make all of the types identities correct
htable_reset(&uniquing_table, 0);
jl_insert_methods((jl_array_t*)external_methods); // hook up methods of external generic functions (needs to be after recache types)
jl_recache_other(); // make all of the other objects identities correct (needs to be after insert methods)
htable_free(&uniquing_table);
jl_array_t *init_order = jl_finalize_deserializer(&s, tracee_list); // done with f and s (needs to be after recache)
JL_GC_PUSH4(&init_order, &restored, &external_backedges, &external_edges);
jl_gc_enable(en); // subtyping can allocate a lot, not valid before recache-other
jl_insert_backedges((jl_array_t*)external_backedges, (jl_array_t*)external_edges); // restore external backedges (needs to be last)
// check new CodeInstances and validate any that lack external backedges
validate_new_code_instances();
serializer_worklist = NULL;
htable_free(&new_code_instance_validate);
arraylist_free(&flagref_list);
arraylist_free(&backref_list);
ios_close(f);
jl_gc_enable_finalizers(ct, 1); // make sure we don't run any Julia code concurrently before this point
if (tracee_list) {
jl_methtable_t *mt;
while ((mt = (jl_methtable_t*)arraylist_pop(tracee_list)) != NULL) {
JL_GC_PROMISE_ROOTED(mt);
jl_typemap_visitor(mt->defs, trace_method, NULL);
}
arraylist_free(tracee_list);
free(tracee_list);
}
for (int i = 0; i < ccallable_list.len; i++) {
jl_svec_t *item = (jl_svec_t*)ccallable_list.items[i];
JL_GC_PROMISE_ROOTED(item);
int success = jl_compile_extern_c(NULL, NULL, NULL, jl_svecref(item, 0), jl_svecref(item, 1));
if (!success)
jl_safe_printf("@ccallable was already defined for this method name\n");
}
arraylist_free(&ccallable_list);
jl_value_t *ret = (jl_value_t*)jl_svec(2, restored, init_order);
JL_GC_POP();
return (jl_value_t*)ret;
}
JL_DLLEXPORT jl_value_t *jl_restore_incremental_from_buf(const char *buf, size_t sz, jl_array_t *mod_array)
{
ios_t f;
ios_static_buffer(&f, (char*)buf, sz);
return _jl_restore_incremental(&f, mod_array);
}
JL_DLLEXPORT jl_value_t *jl_restore_incremental(const char *fname, jl_array_t *mod_array)
{
ios_t f;
if (ios_file(&f, fname, 1, 0, 0, 0) == NULL) {
return jl_get_exceptionf(jl_errorexception_type,
"Cache file \"%s\" not found.\n", fname);
}
return _jl_restore_incremental(&f, mod_array);
}
// --- init ---
void jl_init_serializer(void)
{
jl_task_t *ct = jl_current_task;
htable_new(&ser_tag, 0);
htable_new(&common_symbol_tag, 0);
htable_new(&backref_table, 0);
void *vals[] = { jl_emptysvec, jl_emptytuple, jl_false, jl_true, jl_nothing, jl_any_type,
jl_call_sym, jl_invoke_sym, jl_invoke_modify_sym, jl_goto_ifnot_sym, jl_return_sym, jl_symbol("tuple"),
jl_an_empty_string, jl_an_empty_vec_any,
// empirical list of very common symbols
#include "common_symbols1.inc"
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_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_bool_type, jl_linenumbernode_type, jl_pinode_type,
jl_upsilonnode_type, jl_type_type, jl_bottom_type, jl_ref_type,
jl_pointer_type, jl_abstractarray_type, jl_nothing_type,
jl_vararg_type,
jl_densearray_type, jl_function_type, jl_typename_type,
jl_builtin_type, jl_task_type, jl_uniontype_type,
jl_array_any_type, jl_intrinsic_type,
jl_abstractslot_type, jl_methtable_type, jl_typemap_level_type,
jl_voidpointer_type, jl_newvarnode_type, jl_abstractstring_type,
jl_array_symbol_type, jl_anytuple_type, jl_tparam0(jl_anytuple_type),
jl_emptytuple_type, jl_array_uint8_type, jl_code_info_type,
jl_typeofbottom_type, jl_typeofbottom_type->super,
jl_namedtuple_type, jl_array_int32_type,
jl_typedslot_type, jl_uint32_type, jl_uint64_type,
jl_type_type_mt, jl_nonfunction_mt,
jl_opaque_closure_type,
ct->ptls->root_task,
NULL };
// more common symbols, less common than those above. will get 2-byte encodings.
void *common_symbols[] = {
#include "common_symbols2.inc"
NULL
};
deser_tag[TAG_SYMBOL] = (jl_value_t*)jl_symbol_type;
deser_tag[TAG_SSAVALUE] = (jl_value_t*)jl_ssavalue_type;
deser_tag[TAG_DATATYPE] = (jl_value_t*)jl_datatype_type;
deser_tag[TAG_SLOTNUMBER] = (jl_value_t*)jl_slotnumber_type;
deser_tag[TAG_SVEC] = (jl_value_t*)jl_simplevector_type;
deser_tag[TAG_ARRAY] = (jl_value_t*)jl_array_type;
deser_tag[TAG_EXPR] = (jl_value_t*)jl_expr_type;
deser_tag[TAG_PHINODE] = (jl_value_t*)jl_phinode_type;
deser_tag[TAG_PHICNODE] = (jl_value_t*)jl_phicnode_type;
deser_tag[TAG_STRING] = (jl_value_t*)jl_string_type;
deser_tag[TAG_MODULE] = (jl_value_t*)jl_module_type;
deser_tag[TAG_TVAR] = (jl_value_t*)jl_tvar_type;
deser_tag[TAG_METHOD_INSTANCE] = (jl_value_t*)jl_method_instance_type;
deser_tag[TAG_METHOD] = (jl_value_t*)jl_method_type;
deser_tag[TAG_CODE_INSTANCE] = (jl_value_t*)jl_code_instance_type;
deser_tag[TAG_GLOBALREF] = (jl_value_t*)jl_globalref_type;
deser_tag[TAG_INT32] = (jl_value_t*)jl_int32_type;
deser_tag[TAG_INT64] = (jl_value_t*)jl_int64_type;
deser_tag[TAG_UINT8] = (jl_value_t*)jl_uint8_type;
deser_tag[TAG_LINEINFO] = (jl_value_t*)jl_lineinfonode_type;
deser_tag[TAG_UNIONALL] = (jl_value_t*)jl_unionall_type;
deser_tag[TAG_GOTONODE] = (jl_value_t*)jl_gotonode_type;
deser_tag[TAG_QUOTENODE] = (jl_value_t*)jl_quotenode_type;
deser_tag[TAG_GOTOIFNOT] = (jl_value_t*)jl_gotoifnot_type;
deser_tag[TAG_RETURNNODE] = (jl_value_t*)jl_returnnode_type;
deser_tag[TAG_ARGUMENT] = (jl_value_t*)jl_argument_type;
intptr_t i = 0;
while (vals[i] != NULL) {
deser_tag[LAST_TAG+1+i] = (jl_value_t*)vals[i];
i += 1;
}
assert(LAST_TAG+1+i < 256);
for (i = 2; i < 256; i++) {
if (deser_tag[i])
ptrhash_put(&ser_tag, deser_tag[i], (void*)i);
}
i = 2;
while (common_symbols[i-2] != NULL) {
ptrhash_put(&common_symbol_tag, common_symbols[i-2], (void*)i);
deser_symbols[i] = (jl_value_t*)common_symbols[i-2];
i += 1;
}
assert(i <= 256);
}
#ifdef __cplusplus
}
#endif
