static int
read_rite_section_lineno(mrb_state *mrb, const uint8_t *bin, size_t sirep)
{
int result;
size_t i;
uint32_t len;
uint16_t nirep;
uint16_t n;
const struct rite_section_lineno_header *header;
len = 0;
header = (const struct rite_section_lineno_header*)bin;
bin += sizeof(struct rite_section_lineno_header);
nirep = bin_to_uint16(header->nirep);
//Read Binary Data Section
for (n = 0, i = sirep; n < nirep; n++, i++) {
result = read_rite_lineno_record(mrb, bin, i, &len);
if (result != MRB_DUMP_OK)
goto error_exit;
bin += len;
}
result = sirep + bin_to_uint16(header->sirep);
error_exit:
return result;
}
static int
read_rite_section_irep(mrb_state *mrb, const uint8_t *bin)
{
int result;
size_t sirep;
size_t i;
uint32_t len;
uint16_t nirep;
uint16_t n;
const struct rite_section_irep_header *header;
header = (const struct rite_section_irep_header*)bin;
bin += sizeof(struct rite_section_irep_header);
sirep = mrb->irep_len;
nirep = bin_to_uint16(header->nirep);
//Read Binary Data Section
for (n = 0, i = sirep; n < nirep; n++, i++) {
result = read_rite_irep_record(mrb, bin, &len);
if (result != MRB_DUMP_OK)
goto error_exit;
bin += len;
}
result = sirep + bin_to_uint16(header->sirep);
error_exit:
if (result < MRB_DUMP_OK) {
irep_free(sirep, mrb);
}
return result;
}
static int
read_rite_lineno_record(mrb_state *mrb, const uint8_t *bin, size_t irepno, uint32_t *len)
{
int ret;
size_t i, fname_len, niseq;
char *fname;
uint16_t *lines;
ret = MRB_DUMP_OK;
*len = 0;
bin += sizeof(uint32_t); // record size
*len += sizeof(uint32_t);
fname_len = bin_to_uint16(bin);
bin += sizeof(uint16_t);
*len += sizeof(uint16_t);
if (SIZE_ERROR(fname_len + 1)) {
ret = MRB_DUMP_GENERAL_FAILURE;
goto error_exit;
}
fname = (char *)mrb_malloc(mrb, fname_len + 1);
if (fname == NULL) {
ret = MRB_DUMP_GENERAL_FAILURE;
goto error_exit;
}
memcpy(fname, bin, fname_len);
fname[fname_len] = '\0';
bin += fname_len;
*len += fname_len;
niseq = bin_to_uint32(bin);
bin += sizeof(uint32_t); // niseq
*len += sizeof(uint32_t);
if (SIZE_ERROR_MUL(niseq, sizeof(uint16_t))) {
ret = MRB_DUMP_GENERAL_FAILURE;
goto error_exit;
}
lines = (uint16_t *)mrb_malloc(mrb, niseq * sizeof(uint16_t));
if (lines == NULL) {
ret = MRB_DUMP_GENERAL_FAILURE;
goto error_exit;
}
for (i = 0; i < niseq; i++) {
lines[i] = bin_to_uint16(bin);
bin += sizeof(uint16_t); // niseq
*len += sizeof(uint16_t);
}
mrb->irep[irepno]->filename = fname;
mrb->irep[irepno]->lines = lines;
error_exit:
return ret;
}
static int
read_lineno_record_1(mrb_state *mrb, const uint8_t *bin, mrb_irep *irep, uint32_t *len)
{
int ret;
size_t i, fname_len, niseq;
char *fname;
uint16_t *lines;
ret = MRB_DUMP_OK;
*len = 0;
bin += sizeof(uint32_t); /* record size */
*len += sizeof(uint32_t);
fname_len = bin_to_uint16(bin);
bin += sizeof(uint16_t);
*len += sizeof(uint16_t);
if (SIZE_ERROR(fname_len + 1)) {
return MRB_DUMP_GENERAL_FAILURE;
}
fname = (char *)mrb_malloc(mrb, fname_len + 1);
if (fname == NULL) {
return MRB_DUMP_GENERAL_FAILURE;
}
memcpy(fname, bin, fname_len);
fname[fname_len] = '\0';
bin += fname_len;
*len += fname_len;
niseq = bin_to_uint32(bin);
bin += sizeof(uint32_t); /* niseq */
*len += sizeof(uint32_t);
if (SIZE_ERROR_MUL(niseq, sizeof(uint16_t))) {
return MRB_DUMP_GENERAL_FAILURE;
}
lines = (uint16_t *)mrb_malloc(mrb, niseq * sizeof(uint16_t));
if (lines == NULL) {
return MRB_DUMP_GENERAL_FAILURE;
}
for (i = 0; i < niseq; i++) {
lines[i] = bin_to_uint16(bin);
bin += sizeof(uint16_t); /* niseq */
*len += sizeof(uint16_t);
}
irep->filename = fname;
irep->lines = lines;
return ret;
}
static int32_t
read_rite_section_irep_file(mrb_state *mrb, FILE *fp)
{
int32_t result;
size_t sirep;
size_t i;
uint16_t nirep;
uint16_t n;
uint32_t len, buf_size;
uint8_t *buf = NULL;
const size_t record_header_size = 1 + 4;
struct rite_section_irep_header header;
if (fread(&header, sizeof(struct rite_section_irep_header), 1, fp) == 0) {
return MRB_DUMP_READ_FAULT;
}
sirep = mrb->irep_len;
nirep = bin_to_uint16(header.nirep);
buf_size = record_header_size;
buf = (uint8_t *)mrb_malloc(mrb, buf_size);
//Read Binary Data Section
for (n = 0, i = sirep; n < nirep; n++, i++) {
if (fread(buf, record_header_size, 1, fp) == 0) {
result = MRB_DUMP_READ_FAULT;
goto error_exit;
}
buf_size = bin_to_uint32(&buf[0]);
buf = (uint8_t *)mrb_realloc(mrb, buf, buf_size);
if (fread(&buf[record_header_size], buf_size - record_header_size, 1, fp) == 0) {
result = MRB_DUMP_READ_FAULT;
goto error_exit;
}
result = read_rite_irep_record(mrb, buf, &len);
if (result != MRB_DUMP_OK)
goto error_exit;
}
result = sirep + bin_to_uint16(header.sirep);
error_exit:
mrb_free(mrb, buf);
if (result < MRB_DUMP_OK) {
irep_free(sirep, mrb);
}
return result;
}
static int
read_binary_header(const uint8_t *bin, size_t *bin_size, uint16_t *crc, uint8_t *flags)
{
const struct rite_binary_header *header = (const struct rite_binary_header *)bin;
if (memcmp(header->binary_ident, RITE_BINARY_IDENT, sizeof(header->binary_ident)) == 0) {
if (bigendian_p())
*flags |= FLAG_BYTEORDER_NATIVE;
else
*flags |= FLAG_BYTEORDER_BIG;
}
else if (memcmp(header->binary_ident, RITE_BINARY_IDENT_LIL, sizeof(header->binary_ident)) == 0) {
if (bigendian_p())
*flags |= FLAG_BYTEORDER_LIL;
else
*flags |= FLAG_BYTEORDER_NATIVE;
}
else {
return MRB_DUMP_INVALID_FILE_HEADER;
}
if (crc) {
*crc = bin_to_uint16(header->binary_crc);
}
*bin_size = (size_t)bin_to_uint32(header->binary_size);
return MRB_DUMP_OK;
}
/* ignore lineno record */
static int
read_lineno_record_1(mrb_state *mrb, const uint8_t *bin, mrb_irep *irep, size_t *len)
{
size_t i, fname_len, niseq;
*len = 0;
bin += sizeof(uint32_t); /* record size */
*len += sizeof(uint32_t);
fname_len = bin_to_uint16(bin);
bin += sizeof(uint16_t);
*len += sizeof(uint16_t);
bin += fname_len;
*len += fname_len;
niseq = (size_t)bin_to_uint32(bin);
bin += sizeof(uint32_t); /* niseq */
*len += sizeof(uint32_t);
if (SIZE_ERROR_MUL(niseq, sizeof(uint16_t))) {
return MRB_DUMP_GENERAL_FAILURE;
}
for (i = 0; i < niseq; i++) {
bin += sizeof(uint16_t); /* niseq */
*len += sizeof(uint16_t);
}
return MRB_DUMP_OK;
}
static int
read_section_debug(mrb_state *mrb, const uint8_t *start, mrb_irep *irep, mrb_bool alloc)
{
const uint8_t *bin;
ptrdiff_t diff;
struct rite_section_debug_header *header;
uint16_t i;
size_t len = 0;
int result;
uint16_t filenames_len;
mrb_sym *filenames;
bin = start;
header = (struct rite_section_debug_header *)bin;
bin += sizeof(struct rite_section_debug_header);
filenames_len = bin_to_uint16(bin);
bin += sizeof(uint16_t);
filenames = (mrb_sym*)mrb_malloc(mrb, sizeof(mrb_sym) * (size_t)filenames_len);
for (i = 0; i < filenames_len; ++i) {
uint16_t f_len = bin_to_uint16(bin);
bin += sizeof(uint16_t);
if (alloc) {
filenames[i] = mrb_intern(mrb, (const char *)bin, (size_t)f_len);
}
else {
filenames[i] = mrb_intern_static(mrb, (const char *)bin, (size_t)f_len);
}
bin += f_len;
}
result = read_debug_record(mrb, bin, irep, &len, filenames, filenames_len);
if (result != MRB_DUMP_OK) goto debug_exit;
bin += len;
diff = bin - start;
mrb_assert(diff >= 0);
mrb_assert(diff <= UINT32_MAX);
if ((uint32_t)diff != bin_to_uint32(header->section_size)) {
result = MRB_DUMP_GENERAL_FAILURE;
}
debug_exit:
mrb_free(mrb, filenames);
return result;
}
int
mrb_read_irep_file(mrb_state *mrb, FILE* fp)
{
int ret, i;
uint32_t len, rlen = 0;
unsigned char hex8[8], hcrc[4];
unsigned char *dst, *rite_dst = NULL;
rite_binary_header bin_header;
RiteFILE ritefp = { 0 };
RiteFILE *rfp;
if ((mrb == NULL) || (fp == NULL)) {
return MRB_DUMP_INVALID_ARGUMENT;
}
ritefp.fp = fp;
rfp = &ritefp;
//Read File Header Section
ret = load_rite_header(fp, &bin_header, hcrc);
if (ret != MRB_DUMP_OK)
return ret;
len = sizeof(rite_binary_header) + bin_to_uint32(bin_header.rbds);
rite_dst = (unsigned char *)mrb_malloc(mrb, len);
if (rite_dst == NULL)
return MRB_DUMP_GENERAL_FAILURE;
dst = rite_dst;
memset(dst, 0x00, len);
*(rite_binary_header *)dst = bin_header;
dst += sizeof(rite_binary_header);
dst += hex_to_bin16(dst, hcrc);
//Read Binary Data Section
len = bin_to_uint16(bin_header.nirep);
for (i=0; i<len; i++) {
rite_fgets(rfp, hex8, sizeof(hex8), TRUE); //record len
dst += hex_to_bin32(dst, hex8);
ret = load_rite_irep_record(mrb, rfp, dst, &rlen);
if (ret != MRB_DUMP_OK) //irep info
goto error_exit;
dst += rlen;
}
rite_fgets(rfp, hex8, sizeof(hex8), TRUE); //dummy record len
hex_to_bin32(dst, hex8); /* dst += hex_to_bin32(dst, hex8); */
if (0 != hex_to_uint32(hex8)) {
ret = MRB_DUMP_INVALID_IREP;
goto error_exit;
}
if (ret == MRB_DUMP_OK)
ret = mrb_read_irep(mrb, (char*)rite_dst);
error_exit:
mrb_free(mrb, rite_dst);
return ret;
}
static int
read_rite_section_debug(mrb_state *mrb, const uint8_t *start, size_t sirep)
{
const uint8_t *bin;
struct rite_section_debug_header *header;
uint16_t i;
int result;
uint16_t nirep;
size_t filenames_len;
mrb_sym *filenames;
bin = start;
header = (struct rite_section_debug_header *)bin;
bin += sizeof(struct rite_section_debug_header);
nirep = bin_to_uint16(header->nirep);
filenames_len = bin_to_uint16(bin);
bin += sizeof(uint16_t);
filenames = (mrb_sym*)mrb_malloc(mrb, sizeof(mrb_sym*) * filenames_len);
for(i = 0; i < filenames_len; ++i) {
uint16_t f_len = bin_to_uint16(bin);
bin += sizeof(uint16_t);
filenames[i] = mrb_intern2(mrb, (const char *)bin, f_len);
bin += f_len;
}
for(i = sirep; i < (sirep + nirep); ++i) {
uint32_t len = 0;
result = read_rite_debug_record(mrb, bin, i, &len, filenames, filenames_len);
if (result != MRB_DUMP_OK) { goto debug_exit; }
bin += len;
}
if ((bin - start) != bin_to_uint32(header->section_size)) {
return MRB_DUMP_GENERAL_FAILURE;
}
result = sirep + bin_to_uint16(header->sirep);
debug_exit:
mrb_free(mrb, filenames);
return result;
}
static int
read_lv_record(mrb_state *mrb, const uint8_t *start, mrb_irep *irep, size_t *record_len, mrb_sym const *syms, uint32_t syms_len)
{
const uint8_t *bin = start;
ptrdiff_t diff;
int i;
irep->lv = (struct mrb_locals*)mrb_malloc(mrb, sizeof(struct mrb_locals) * (irep->nlocals - 1));
for (i = 0; i + 1< irep->nlocals; ++i) {
uint16_t const sym_idx = bin_to_uint16(bin);
bin += sizeof(uint16_t);
if (sym_idx == RITE_LV_NULL_MARK) {
irep->lv[i].name = 0;
irep->lv[i].r = 0;
}
else {
if (sym_idx >= syms_len) {
return MRB_DUMP_GENERAL_FAILURE;
}
irep->lv[i].name = syms[sym_idx];
irep->lv[i].r = bin_to_uint16(bin);
}
bin += sizeof(uint16_t);
}
for (i = 0; i < irep->rlen; ++i) {
size_t len;
int ret;
ret = read_lv_record(mrb, bin, irep->reps[i], &len, syms, syms_len);
if (ret != MRB_DUMP_OK) return ret;
bin += len;
}
diff = bin - start;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
*record_len = (size_t)diff;
return MRB_DUMP_OK;
}
static int
read_rite_header(mrb_state *mrb, unsigned char *bin, rite_binary_header* bin_header)
{
uint16_t crc;
*bin_header = *(rite_binary_header *)bin;
bin += sizeof(rite_binary_header);
if (memcmp(bin_header->rbfi, RITE_FILE_IDENFIFIER, sizeof(bin_header->rbfi)) != 0) {
return MRB_DUMP_INVALID_FILE_HEADER; //File identifier error
}
if (memcmp(bin_header->risv, RITE_VM_VER, sizeof(bin_header->risv)) != 0) {
return MRB_DUMP_INVALID_FILE_HEADER; //Instruction set version check
}
crc = calc_crc_16_ccitt((unsigned char*)bin_header, sizeof(*bin_header)); //Calculate CRC
if (crc != bin_to_uint16(bin)) {
return MRB_DUMP_INVALID_FILE_HEADER; //CRC error
}
return bin_to_uint16(bin_header->nirep);
}
static int
read_section_lv(mrb_state *mrb, const uint8_t *start, mrb_irep *irep, uint8_t flags)
{
const uint8_t *bin;
ptrdiff_t diff;
struct rite_section_lv_header const *header;
uint32_t i;
size_t len = 0;
int result;
uint32_t syms_len;
mrb_sym *syms;
mrb_sym (*intern_func)(mrb_state*, const char*, size_t) =
(flags & FLAG_SRC_MALLOC)? mrb_intern : mrb_intern_static;
bin = start;
header = (struct rite_section_lv_header const*)bin;
bin += sizeof(struct rite_section_lv_header);
syms_len = bin_to_uint32(bin);
bin += sizeof(uint32_t);
syms = (mrb_sym*)mrb_malloc(mrb, sizeof(mrb_sym) * (size_t)syms_len);
for (i = 0; i < syms_len; ++i) {
uint16_t const str_len = bin_to_uint16(bin);
bin += sizeof(uint16_t);
syms[i] = intern_func(mrb, (const char*)bin, str_len);
bin += str_len;
}
result = read_lv_record(mrb, bin, irep, &len, syms, syms_len);
if (result != MRB_DUMP_OK) goto lv_exit;
bin += len;
diff = bin - start;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
if ((uint32_t)diff != bin_to_uint32(header->section_size)) {
result = MRB_DUMP_GENERAL_FAILURE;
}
lv_exit:
mrb_free(mrb, syms);
return result;
}
static int
read_rite_binary_header(const uint8_t *bin, size_t *bin_size, uint16_t *crc)
{
const struct rite_binary_header *header = (const struct rite_binary_header *)bin;
if (memcmp(header->binary_identify, RITE_BINARY_IDENFIFIER, sizeof(header->binary_identify)) != 0) {
return MRB_DUMP_INVALID_FILE_HEADER;
}
if (memcmp(header->binary_version, RITE_BINARY_FORMAT_VER, sizeof(header->binary_version)) != 0) {
return MRB_DUMP_INVALID_FILE_HEADER;
}
*crc = bin_to_uint16(header->binary_crc);
if (bin_size) {
*bin_size = bin_to_uint32(header->binary_size);
}
return MRB_DUMP_OK;
}
static mrb_irep*
read_irep_record_1(mrb_state *mrb, const uint8_t *bin, size_t *len, uint8_t flags)
{
int i;
const uint8_t *src = bin;
ptrdiff_t diff;
uint16_t tt, pool_data_len, snl;
int plen;
int ai = mrb_gc_arena_save(mrb);
mrb_irep *irep = mrb_add_irep(mrb);
/* skip record size */
src += sizeof(uint32_t);
/* number of local variable */
irep->nlocals = bin_to_uint16(src);
src += sizeof(uint16_t);
/* number of register variable */
irep->nregs = bin_to_uint16(src);
src += sizeof(uint16_t);
/* number of child irep */
irep->rlen = (size_t)bin_to_uint16(src);
src += sizeof(uint16_t);
/* Binary Data Section */
/* ISEQ BLOCK */
irep->ilen = (uint16_t)bin_to_uint32(src);
src += sizeof(uint32_t);
src += skip_padding(src);
if (irep->ilen > 0) {
if (SIZE_ERROR_MUL(irep->ilen, sizeof(mrb_code))) {
return NULL;
}
if ((flags & FLAG_SRC_MALLOC) == 0 &&
(flags & FLAG_BYTEORDER_NATIVE)) {
irep->iseq = (mrb_code*)src;
src += sizeof(mrb_code) * irep->ilen;
irep->flags |= MRB_ISEQ_NO_FREE;
}
else {
size_t data_len = sizeof(mrb_code) * irep->ilen;
irep->iseq = (mrb_code *)mrb_malloc(mrb, data_len);
memcpy(irep->iseq, src, data_len);
src += data_len;
}
}
/* POOL BLOCK */
plen = bin_to_uint32(src); /* number of pool */
src += sizeof(uint32_t);
if (plen > 0) {
if (SIZE_ERROR_MUL(plen, sizeof(mrb_value))) {
return NULL;
}
irep->pool = (mrb_value*)mrb_malloc(mrb, sizeof(mrb_value) * plen);
for (i = 0; i < plen; i++) {
mrb_value s;
tt = *src++; /* pool TT */
pool_data_len = bin_to_uint16(src); /* pool data length */
src += sizeof(uint16_t);
if (flags & FLAG_SRC_MALLOC) {
s = mrb_str_new(mrb, (char *)src, pool_data_len);
}
else {
s = mrb_str_new_static(mrb, (char *)src, pool_data_len);
}
src += pool_data_len;
switch (tt) { /* pool data */
case IREP_TT_FIXNUM: {
mrb_value num = mrb_str_to_inum(mrb, s, 10, FALSE);
#ifdef MRB_WITHOUT_FLOAT
irep->pool[i] = num;
#else
irep->pool[i] = mrb_float_p(num)? mrb_float_pool(mrb, mrb_float(num)) : num;
#endif
}
break;
#ifndef MRB_WITHOUT_FLOAT
case IREP_TT_FLOAT:
irep->pool[i] = mrb_float_pool(mrb, mrb_str_to_dbl(mrb, s, FALSE));
break;
#endif
case IREP_TT_STRING:
irep->pool[i] = mrb_str_pool(mrb, s);
break;
default:
/* should not happen */
irep->pool[i] = mrb_nil_value();
break;
}
irep->plen++;
mrb_gc_arena_restore(mrb, ai);
}
}
/* SYMS BLOCK */
irep->slen = (uint16_t)bin_to_uint32(src); /* syms length */
src += sizeof(uint32_t);
if (irep->slen > 0) {
if (SIZE_ERROR_MUL(irep->slen, sizeof(mrb_sym))) {
return NULL;
}
irep->syms = (mrb_sym *)mrb_malloc(mrb, sizeof(mrb_sym) * irep->slen);
for (i = 0; i < irep->slen; i++) {
snl = bin_to_uint16(src); /* symbol name length */
src += sizeof(uint16_t);
if (snl == MRB_DUMP_NULL_SYM_LEN) {
irep->syms[i] = 0;
continue;
}
if (flags & FLAG_SRC_MALLOC) {
irep->syms[i] = mrb_intern(mrb, (char *)src, snl);
}
else {
irep->syms[i] = mrb_intern_static(mrb, (char *)src, snl);
}
src += snl + 1;
mrb_gc_arena_restore(mrb, ai);
}
}
irep->reps = (mrb_irep**)mrb_malloc(mrb, sizeof(mrb_irep*)*irep->rlen);
diff = src - bin;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
*len = (size_t)diff;
return irep;
}
static int
read_debug_record(mrb_state *mrb, const uint8_t *start, mrb_irep* irep, size_t *record_len, const mrb_sym *filenames, size_t filenames_len)
{
const uint8_t *bin = start;
ptrdiff_t diff;
size_t record_size;
uint16_t f_idx;
int i;
if (irep->debug_info) { return MRB_DUMP_INVALID_IREP; }
irep->debug_info = (mrb_irep_debug_info*)mrb_malloc(mrb, sizeof(mrb_irep_debug_info));
irep->debug_info->pc_count = (uint32_t)irep->ilen;
record_size = (size_t)bin_to_uint32(bin);
bin += sizeof(uint32_t);
irep->debug_info->flen = bin_to_uint16(bin);
irep->debug_info->files = (mrb_irep_debug_info_file**)mrb_malloc(mrb, sizeof(mrb_irep_debug_info*) * irep->debug_info->flen);
bin += sizeof(uint16_t);
for (f_idx = 0; f_idx < irep->debug_info->flen; ++f_idx) {
mrb_irep_debug_info_file *file;
uint16_t filename_idx;
mrb_int len;
file = (mrb_irep_debug_info_file *)mrb_malloc(mrb, sizeof(*file));
irep->debug_info->files[f_idx] = file;
file->start_pos = bin_to_uint32(bin);
bin += sizeof(uint32_t);
/* filename */
filename_idx = bin_to_uint16(bin);
bin += sizeof(uint16_t);
mrb_assert(filename_idx < filenames_len);
file->filename_sym = filenames[filename_idx];
len = 0;
file->filename = mrb_sym2name_len(mrb, file->filename_sym, &len);
file->line_entry_count = bin_to_uint32(bin);
bin += sizeof(uint32_t);
file->line_type = (mrb_debug_line_type)bin_to_uint8(bin);
bin += sizeof(uint8_t);
switch (file->line_type) {
case mrb_debug_line_ary: {
uint32_t l;
file->lines.ary = (uint16_t *)mrb_malloc(mrb, sizeof(uint16_t) * (size_t)(file->line_entry_count));
for (l = 0; l < file->line_entry_count; ++l) {
file->lines.ary[l] = bin_to_uint16(bin);
bin += sizeof(uint16_t);
}
} break;
case mrb_debug_line_flat_map: {
uint32_t l;
file->lines.flat_map = (mrb_irep_debug_info_line*)mrb_malloc(
mrb, sizeof(mrb_irep_debug_info_line) * (size_t)(file->line_entry_count));
for (l = 0; l < file->line_entry_count; ++l) {
file->lines.flat_map[l].start_pos = bin_to_uint32(bin);
bin += sizeof(uint32_t);
file->lines.flat_map[l].line = bin_to_uint16(bin);
bin += sizeof(uint16_t);
}
} break;
default: return MRB_DUMP_GENERAL_FAILURE;
}
}
diff = bin - start;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
if (record_size != (size_t)diff) {
return MRB_DUMP_GENERAL_FAILURE;
}
for (i = 0; i < irep->rlen; i++) {
size_t len;
int ret;
ret = read_debug_record(mrb, bin, irep->reps[i], &len, filenames, filenames_len);
if (ret != MRB_DUMP_OK) return ret;
bin += len;
}
diff = bin - start;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
*record_len = (size_t)diff;
return MRB_DUMP_OK;
}
static int
read_rite_irep_record(mrb_state *mrb, const uint8_t *bin, uint32_t *len)
{
int ret;
size_t i;
const uint8_t *src = bin;
uint16_t tt, pool_data_len, snl;
size_t plen;
int ai = mrb_gc_arena_save(mrb);
mrb_irep *irep = mrb_add_irep(mrb);
// skip record size
src += sizeof(uint32_t);
// number of local variable
irep->nlocals = bin_to_uint16(src);
src += sizeof(uint16_t);
// number of register variable
irep->nregs = bin_to_uint16(src);
src += sizeof(uint16_t);
// Binary Data Section
// ISEQ BLOCK
irep->ilen = bin_to_uint32(src);
src += sizeof(uint32_t);
if (irep->ilen > 0) {
irep->iseq = (mrb_code *)mrb_malloc(mrb, sizeof(mrb_code) * irep->ilen);
if (irep->iseq == NULL) {
ret = MRB_DUMP_GENERAL_FAILURE;
goto error_exit;
}
for (i = 0; i < irep->ilen; i++) {
irep->iseq[i] = bin_to_uint32(src); //iseq
src += sizeof(uint32_t);
}
}
//POOL BLOCK
plen = bin_to_uint32(src); /* number of pool */
src += sizeof(uint32_t);
if (plen > 0) {
irep->pool = (mrb_value *)mrb_malloc(mrb, sizeof(mrb_value) * plen);
if (irep->pool == NULL) {
ret = MRB_DUMP_GENERAL_FAILURE;
goto error_exit;
}
for (i = 0; i < plen; i++) {
mrb_value s;
tt = *src++; //pool TT
pool_data_len = bin_to_uint16(src); //pool data length
src += sizeof(uint16_t);
s = mrb_str_new(mrb, (char *)src, pool_data_len);
src += pool_data_len;
switch (tt) { //pool data
case MRB_TT_FIXNUM:
irep->pool[i] = mrb_str_to_inum(mrb, s, 10, FALSE);
break;
case MRB_TT_FLOAT:
irep->pool[i] = mrb_float_value(mrb_str_to_dbl(mrb, s, FALSE));
break;
case MRB_TT_STRING:
irep->pool[i] = s;
break;
default:
irep->pool[i] = mrb_nil_value();
break;
}
irep->plen++;
mrb_gc_arena_restore(mrb, ai);
}
}
//SYMS BLOCK
irep->slen = bin_to_uint32(src); //syms length
src += sizeof(uint32_t);
if (irep->slen > 0) {
irep->syms = (mrb_sym *)mrb_malloc(mrb, sizeof(mrb_sym) * irep->slen);
if (irep->syms == NULL) {
ret = MRB_DUMP_GENERAL_FAILURE;
goto error_exit;
}
for (i = 0; i < irep->slen; i++) {
snl = bin_to_uint16(src); //symbol name length
src += sizeof(uint16_t);
if (snl == MRB_DUMP_NULL_SYM_LEN) {
irep->syms[i] = 0;
continue;
}
irep->syms[i] = mrb_intern2(mrb, (char *)src, snl);
src += snl + 1;
mrb_gc_arena_restore(mrb, ai);
}
}
*len = src - bin;
ret = MRB_DUMP_OK;
error_exit:
return ret;
}
static int
read_rite_irep_record(mrb_state *mrb, unsigned char *src, uint32_t* len)
{
int i, ret = MRB_DUMP_OK;
char *buf;
unsigned char *recordStart, *pStart;
uint16_t crc, tt, pdl, snl, offset, bufsize=MRB_DUMP_DEFAULT_STR_LEN;
mrb_int fix_num;
mrb_float f;
int plen;
int ai = mrb_gc_arena_save(mrb);
mrb_irep *irep = mrb_add_irep(mrb);
recordStart = src;
buf = (char *)mrb_malloc(mrb, bufsize);
if (buf == NULL) {
ret = MRB_DUMP_INVALID_IREP;
goto error_exit;
}
//Header Section
pStart = src;
if (*src != RITE_IREP_IDENFIFIER)
return MRB_DUMP_INVALID_IREP;
src += (sizeof(unsigned char) * 2);
irep->nlocals = bin_to_uint16(src); //number of local variable
src += MRB_DUMP_SIZE_OF_SHORT;
irep->nregs = bin_to_uint16(src); //number of register variable
src += MRB_DUMP_SIZE_OF_SHORT;
offset = bin_to_uint16(src); //offset of isec block
src += MRB_DUMP_SIZE_OF_SHORT;
crc = calc_crc_16_ccitt(pStart, src - pStart); //Calculate CRC
if (crc != bin_to_uint16(src)) //header CRC
return MRB_DUMP_INVALID_IREP;
src += offset;
//Binary Data Section
//ISEQ BLOCK
pStart = src;
irep->ilen = bin_to_uint32(src); //iseq length
src += MRB_DUMP_SIZE_OF_LONG;
if (irep->ilen > 0) {
if ((irep->iseq = (mrb_code *)mrb_malloc(mrb, sizeof(mrb_code) * irep->ilen)) == NULL) {
ret = MRB_DUMP_GENERAL_FAILURE;
goto error_exit;
}
for (i=0; i<irep->ilen; i++) {
irep->iseq[i] = bin_to_uint32(src); //iseq
src += MRB_DUMP_SIZE_OF_LONG;
}
}
crc = calc_crc_16_ccitt((unsigned char*)pStart, src - pStart); //Calculate CRC
if (crc != bin_to_uint16(src)) { //iseq CRC
ret = MRB_DUMP_INVALID_IREP;
goto error_exit;
}
src += MRB_DUMP_SIZE_OF_SHORT;
//POOL BLOCK
pStart = src;
plen = bin_to_uint32(src); //pool length
src += MRB_DUMP_SIZE_OF_LONG;
if (plen > 0) {
irep->pool = (mrb_value *)mrb_malloc(mrb, sizeof(mrb_value) * plen);
if (irep->pool == NULL) {
ret = MRB_DUMP_INVALID_IREP;
goto error_exit;
}
for (i=0; i<plen; i++) {
tt = *src; //pool TT
src += sizeof(unsigned char);
pdl = bin_to_uint16(src); //pool data length
src += MRB_DUMP_SIZE_OF_SHORT;
if (pdl > bufsize - 1) {
mrb_free(mrb, buf);
bufsize = pdl + 1;
if ((buf = (char *)mrb_malloc(mrb, bufsize)) == NULL) {
ret = MRB_DUMP_GENERAL_FAILURE;
goto error_exit;
}
}
memcpy(buf, src, pdl);
src += pdl;
buf[pdl] = '\0';
switch (tt) { //pool data
case MRB_TT_FIXNUM:
fix_num = str_to_mrb_int(buf);
irep->pool[i] = mrb_fixnum_value(fix_num);
break;
case MRB_TT_FLOAT:
f = str_to_mrb_float(buf);
irep->pool[i] = mrb_float_value(f);
break;
case MRB_TT_STRING:
irep->pool[i] = mrb_str_new(mrb, buf, pdl);
break;
#ifdef ENABLE_REGEXP
case MRB_TT_REGEX:
str = mrb_str_new(mrb, buf, pdl);
irep->pool[i] = mrb_reg_quote(mrb, str);
break;
#endif
default:
irep->pool[i] = mrb_nil_value();
break;
}
irep->plen++;
mrb_gc_arena_restore(mrb, ai);
}
}
crc = calc_crc_16_ccitt((unsigned char*)pStart, src - pStart); //Calculate CRC
if (crc != bin_to_uint16(src)) { //pool CRC
ret = MRB_DUMP_INVALID_IREP;
goto error_exit;
}
src += MRB_DUMP_SIZE_OF_SHORT;
//SYMS BLOCK
pStart = src;
irep->slen = bin_to_uint32(src); //syms length
src += MRB_DUMP_SIZE_OF_LONG;
if (irep->slen > 0) {
if ((irep->syms = (mrb_sym *)mrb_malloc(mrb, sizeof(mrb_sym) * irep->slen)) == NULL) {
ret = MRB_DUMP_INVALID_IREP;
goto error_exit;
}
for (i = 0; i < irep->slen; i++) {
static const mrb_sym mrb_sym_zero = { 0 };
*irep->syms = mrb_sym_zero;
}
for (i=0; i<irep->slen; i++) {
snl = bin_to_uint16(src); //symbol name length
src += MRB_DUMP_SIZE_OF_SHORT;
if (snl == MRB_DUMP_NULL_SYM_LEN) {
irep->syms[i] = 0;
continue;
}
if (snl > bufsize - 1) {
mrb_free(mrb, buf);
bufsize = snl + 1;
if ((buf = (char *)mrb_malloc(mrb, bufsize)) == NULL) {
ret = MRB_DUMP_GENERAL_FAILURE;
goto error_exit;
}
}
memcpy(buf, src, snl); //symbol name
src += snl;
buf[snl] = '\0';
irep->syms[i] = mrb_intern2(mrb, buf, snl);
}
}
crc = calc_crc_16_ccitt((unsigned char*)pStart, src - pStart); //Calculate CRC
if (crc != bin_to_uint16(src)) { //syms CRC
ret = MRB_DUMP_INVALID_IREP;
goto error_exit;
}
src += MRB_DUMP_SIZE_OF_SHORT;
*len = src - recordStart;
error_exit:
if (buf)
mrb_free(mrb, buf);
return ret;
}
static mrb_irep*
read_irep_record_1(mrb_state *mrb, const uint8_t *bin, size_t *len, mrb_bool alloc)
{
size_t i;
const uint8_t *src = bin;
ptrdiff_t diff;
uint16_t tt, pool_data_len, snl;
size_t plen;
int ai = mrb_gc_arena_save(mrb);
mrb_irep *irep = mrb_add_irep(mrb);
/* skip record size */
src += sizeof(uint32_t);
/* number of local variable */
irep->nlocals = bin_to_uint16(src);
src += sizeof(uint16_t);
/* number of register variable */
irep->nregs = bin_to_uint16(src);
src += sizeof(uint16_t);
/* number of child irep */
irep->rlen = (size_t)bin_to_uint16(src);
src += sizeof(uint16_t);
/* Binary Data Section */
/* ISEQ BLOCK */
irep->ilen = (size_t)bin_to_uint32(src);
src += sizeof(uint32_t);
if (irep->ilen > 0) {
if (SIZE_ERROR_MUL(sizeof(mrb_code), irep->ilen)) {
return NULL;
}
irep->iseq = (mrb_code *)mrb_malloc(mrb, sizeof(mrb_code) * irep->ilen);
for (i = 0; i < irep->ilen; i++) {
irep->iseq[i] = (size_t)bin_to_uint32(src); /* iseq */
src += sizeof(uint32_t);
}
}
/* POOL BLOCK */
plen = (size_t)bin_to_uint32(src); /* number of pool */
src += sizeof(uint32_t);
if (plen > 0) {
if (SIZE_ERROR_MUL(sizeof(mrb_value), plen)) {
return NULL;
}
irep->pool = (mrb_value*)mrb_malloc(mrb, sizeof(mrb_value) * plen);
for (i = 0; i < plen; i++) {
mrb_value s;
tt = *src++; /* pool TT */
pool_data_len = bin_to_uint16(src); /* pool data length */
src += sizeof(uint16_t);
if (alloc) {
s = mrb_str_new(mrb, (char *)src, pool_data_len);
}
else {
s = mrb_str_new_static(mrb, (char *)src, pool_data_len);
}
src += pool_data_len;
switch (tt) { /* pool data */
case IREP_TT_FIXNUM:
irep->pool[i] = mrb_str_to_inum(mrb, s, 10, FALSE);
break;
case IREP_TT_FLOAT:
irep->pool[i] = mrb_float_pool(mrb, mrb_str_to_dbl(mrb, s, FALSE));
break;
case IREP_TT_STRING:
irep->pool[i] = mrb_str_pool(mrb, s);
break;
default:
/* should not happen */
irep->pool[i] = mrb_nil_value();
break;
}
irep->plen++;
mrb_gc_arena_restore(mrb, ai);
}
}
/* SYMS BLOCK */
irep->slen = (size_t)bin_to_uint32(src); /* syms length */
src += sizeof(uint32_t);
if (irep->slen > 0) {
if (SIZE_ERROR_MUL(sizeof(mrb_sym), irep->slen)) {
return NULL;
}
irep->syms = (mrb_sym *)mrb_malloc(mrb, sizeof(mrb_sym) * irep->slen);
for (i = 0; i < irep->slen; i++) {
snl = bin_to_uint16(src); /* symbol name length */
src += sizeof(uint16_t);
if (snl == MRB_DUMP_NULL_SYM_LEN) {
irep->syms[i] = 0;
continue;
}
if (alloc) {
irep->syms[i] = mrb_intern(mrb, (char *)src, snl);
}
else {
irep->syms[i] = mrb_intern_static(mrb, (char *)src, snl);
}
src += snl + 1;
mrb_gc_arena_restore(mrb, ai);
}
}
irep->reps = (mrb_irep**)mrb_malloc(mrb, sizeof(mrb_irep*)*irep->rlen);
diff = src - bin;
mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX);
*len = (size_t)diff;
return irep;
}
static int32_t
read_rite_section_irep_file(mrb_state *mrb, FILE *fp)
{
int32_t result;
size_t sirep;
uint16_t nirep;
uint16_t n;
uint32_t len, buf_size;
uint8_t *buf = NULL;
const size_t record_header_size = 1 + 4;
struct rite_section_irep_header header;
if (fread(&header, sizeof(struct rite_section_irep_header), 1, fp) == 0) {
return MRB_DUMP_READ_FAULT;
}
sirep = mrb->irep_len;
nirep = bin_to_uint16(header.nirep);
buf_size = record_header_size;
/* You don't need use SIZE_ERROR as buf_size is enough small. */
buf = (uint8_t *)mrb_malloc(mrb, buf_size);
if (!buf) {
result = MRB_DUMP_GENERAL_FAILURE;
goto error_exit;
}
//Read Binary Data Section
for (n = 0; n < nirep; n++) {
void *ptr;
if (fread(buf, record_header_size, 1, fp) == 0) {
result = MRB_DUMP_READ_FAULT;
goto error_exit;
}
buf_size = bin_to_uint32(&buf[0]);
if (SIZE_ERROR(buf_size)) {
result = MRB_DUMP_GENERAL_FAILURE;
goto error_exit;
}
ptr = mrb_realloc(mrb, buf, buf_size);
if (!ptr) {
result = MRB_DUMP_GENERAL_FAILURE;
goto error_exit;
}
buf = (uint8_t *)ptr;
if (fread(&buf[record_header_size], buf_size - record_header_size, 1, fp) == 0) {
result = MRB_DUMP_READ_FAULT;
goto error_exit;
}
result = read_rite_irep_record(mrb, buf, &len);
if (result != MRB_DUMP_OK)
goto error_exit;
}
result = nirep;
error_exit:
if (buf) {
mrb_free(mrb, buf);
}
if (result < MRB_DUMP_OK) {
irep_free(sirep, mrb);
}
return result;
}
static int
read_rite_debug_record(mrb_state *mrb, const uint8_t *start, size_t irepno, uint32_t *len, const mrb_sym *filenames, size_t filenames_len)
{
const uint8_t *bin = start;
mrb_irep *irep = mrb->irep[irepno];
size_t record_size;
uint16_t f_idx;
if(irep->debug_info) { return MRB_DUMP_INVALID_IREP; }
irep->debug_info = (mrb_irep_debug_info*)mrb_malloc(mrb, sizeof(mrb_irep_debug_info));
irep->debug_info->pc_count = irep->ilen;
record_size = bin_to_uint32(bin);
bin += sizeof(uint32_t);
irep->debug_info->flen = bin_to_uint16(bin);
irep->debug_info->files = (mrb_irep_debug_info_file**)mrb_malloc(mrb, sizeof(mrb_irep_debug_info*) * irep->debug_info->flen);
bin += sizeof(uint16_t);
for (f_idx = 0; f_idx < irep->debug_info->flen; ++f_idx) {
mrb_irep_debug_info_file *file;
uint16_t filename_idx;
size_t len;
file = (mrb_irep_debug_info_file *)mrb_malloc(mrb, sizeof(*file));
irep->debug_info->files[f_idx] = file;
file->start_pos = bin_to_uint32(bin); bin += sizeof(uint32_t);
// filename
filename_idx = bin_to_uint16(bin);
bin += sizeof(uint16_t);
mrb_assert(filename_idx < filenames_len);
file->filename_sym = filenames[filename_idx];
len = 0;
file->filename = mrb_sym2name_len(mrb, file->filename_sym, &len);
file->line_entry_count = bin_to_uint32(bin); bin += sizeof(uint32_t);
file->line_type = bin_to_uint8(bin); bin += sizeof(uint8_t);
switch(file->line_type) {
case mrb_debug_line_ary: {
size_t l;
file->line_ary = (uint16_t *)mrb_malloc(mrb, sizeof(uint16_t) * file->line_entry_count);
for(l = 0; l < file->line_entry_count; ++l) {
file->line_ary[l] = bin_to_uint16(bin); bin += sizeof(uint16_t);
}
} break;
case mrb_debug_line_flat_map: {
size_t l;
file->line_flat_map = mrb_malloc(mrb, sizeof(mrb_irep_debug_info_line) * file->line_entry_count);
for(l = 0; l < file->line_entry_count; ++l) {
file->line_flat_map[l].start_pos = bin_to_uint32(bin); bin += sizeof(uint32_t);
file->line_flat_map[l].line = bin_to_uint16(bin); bin += sizeof(uint16_t);
}
} break;
default: return MRB_DUMP_GENERAL_FAILURE;
}
}
if((long)record_size != (bin - start)) {
return MRB_DUMP_GENERAL_FAILURE;
}
*len = bin - start;
return MRB_DUMP_OK;
}
