diff options
Diffstat (limited to '')
| -rw-r--r-- | web/server/h2o/libh2o/deps/mruby/src/dump.c | 1100 |
1 files changed, 1100 insertions, 0 deletions
diff --git a/web/server/h2o/libh2o/deps/mruby/src/dump.c b/web/server/h2o/libh2o/deps/mruby/src/dump.c new file mode 100644 index 00000000..d479a1a4 --- /dev/null +++ b/web/server/h2o/libh2o/deps/mruby/src/dump.c @@ -0,0 +1,1100 @@ +/* +** dump.c - mruby binary dumper (mrbc binary format) +** +** See Copyright Notice in mruby.h +*/ + +#include <string.h> +#include <limits.h> +#include <mruby/dump.h> +#include <mruby/string.h> +#include <mruby/irep.h> +#include <mruby/numeric.h> +#include <mruby/debug.h> + +#define FLAG_BYTEORDER_NATIVE 2 +#define FLAG_BYTEORDER_NONATIVE 0 + +#ifdef MRB_USE_FLOAT +#define MRB_FLOAT_FMT "%.8e" +#else +#define MRB_FLOAT_FMT "%.16e" +#endif + +static size_t get_irep_record_size_1(mrb_state *mrb, mrb_irep *irep); + +#if UINT32_MAX > SIZE_MAX +# error This code cannot be built on your environment. +#endif + +static size_t +write_padding(uint8_t *buf) +{ + const size_t align = MRB_DUMP_ALIGNMENT; + size_t pad_len = -(intptr_t)buf & (align-1); + if (pad_len > 0) { + memset(buf, 0, pad_len); + } + return pad_len; +} + +static size_t +get_irep_header_size(mrb_state *mrb) +{ + size_t size = 0; + + size += sizeof(uint32_t) * 1; + size += sizeof(uint16_t) * 3; + + return size; +} + +static ptrdiff_t +write_irep_header(mrb_state *mrb, mrb_irep *irep, uint8_t *buf) +{ + uint8_t *cur = buf; + + cur += uint32_to_bin((uint32_t)get_irep_record_size_1(mrb, irep), cur); /* record size */ + cur += uint16_to_bin((uint16_t)irep->nlocals, cur); /* number of local variable */ + cur += uint16_to_bin((uint16_t)irep->nregs, cur); /* number of register variable */ + cur += uint16_to_bin((uint16_t)irep->rlen, cur); /* number of child irep */ + + return cur - buf; +} + + +static size_t +get_iseq_block_size(mrb_state *mrb, mrb_irep *irep) +{ + size_t size = 0; + + size += sizeof(uint32_t); /* ilen */ + size += sizeof(uint32_t); /* max padding */ + size += sizeof(uint32_t) * irep->ilen; /* iseq(n) */ + + return size; +} + +static ptrdiff_t +write_iseq_block(mrb_state *mrb, mrb_irep *irep, uint8_t *buf, uint8_t flags) +{ + uint8_t *cur = buf; + int iseq_no; + + cur += uint32_to_bin(irep->ilen, cur); /* number of opcode */ + cur += write_padding(cur); + switch (flags & DUMP_ENDIAN_NAT) { + case DUMP_ENDIAN_BIG: + if (bigendian_p()) goto native; + for (iseq_no = 0; iseq_no < irep->ilen; iseq_no++) { + cur += uint32_to_bin(irep->iseq[iseq_no], cur); /* opcode */ + } + break; + case DUMP_ENDIAN_LIL: + if (!bigendian_p()) goto native; + for (iseq_no = 0; iseq_no < irep->ilen; iseq_no++) { + cur += uint32l_to_bin(irep->iseq[iseq_no], cur); /* opcode */ + } + break; + + native: + case DUMP_ENDIAN_NAT: + memcpy(cur, irep->iseq, irep->ilen * sizeof(mrb_code)); + cur += irep->ilen * sizeof(mrb_code); + break; + } + + return cur - buf; +} + + +static size_t +get_pool_block_size(mrb_state *mrb, mrb_irep *irep) +{ + int pool_no; + size_t size = 0; + mrb_value str; + + size += sizeof(uint32_t); /* plen */ + size += irep->plen * (sizeof(uint8_t) + sizeof(uint16_t)); /* len(n) */ + + for (pool_no = 0; pool_no < irep->plen; pool_no++) { + int ai = mrb_gc_arena_save(mrb); + + switch (mrb_type(irep->pool[pool_no])) { + case MRB_TT_FIXNUM: + str = mrb_fixnum_to_str(mrb, irep->pool[pool_no], 10); + { + mrb_int len = RSTRING_LEN(str); + mrb_assert_int_fit(mrb_int, len, size_t, SIZE_MAX); + size += (size_t)len; + } + break; + + case MRB_TT_FLOAT: + str = mrb_float_to_str(mrb, irep->pool[pool_no], MRB_FLOAT_FMT); + { + mrb_int len = RSTRING_LEN(str); + mrb_assert_int_fit(mrb_int, len, size_t, SIZE_MAX); + size += (size_t)len; + } + break; + + case MRB_TT_STRING: + { + mrb_int len = RSTRING_LEN(irep->pool[pool_no]); + mrb_assert_int_fit(mrb_int, len, size_t, SIZE_MAX); + size += (size_t)len; + } + break; + + default: + break; + } + mrb_gc_arena_restore(mrb, ai); + } + + return size; +} + +static ptrdiff_t +write_pool_block(mrb_state *mrb, mrb_irep *irep, uint8_t *buf) +{ + int pool_no; + uint8_t *cur = buf; + uint16_t len; + mrb_value str; + const char *char_ptr; + + cur += uint32_to_bin(irep->plen, cur); /* number of pool */ + + for (pool_no = 0; pool_no < irep->plen; pool_no++) { + int ai = mrb_gc_arena_save(mrb); + + switch (mrb_type(irep->pool[pool_no])) { + case MRB_TT_FIXNUM: + cur += uint8_to_bin(IREP_TT_FIXNUM, cur); /* data type */ + str = mrb_fixnum_to_str(mrb, irep->pool[pool_no], 10); + break; + + case MRB_TT_FLOAT: + cur += uint8_to_bin(IREP_TT_FLOAT, cur); /* data type */ + str = mrb_float_to_str(mrb, irep->pool[pool_no], MRB_FLOAT_FMT); + break; + + case MRB_TT_STRING: + cur += uint8_to_bin(IREP_TT_STRING, cur); /* data type */ + str = irep->pool[pool_no]; + break; + + default: + continue; + } + + char_ptr = RSTRING_PTR(str); + { + mrb_int tlen = RSTRING_LEN(str); + mrb_assert_int_fit(mrb_int, tlen, uint16_t, UINT16_MAX); + len = (uint16_t)tlen; + } + + cur += uint16_to_bin(len, cur); /* data length */ + memcpy(cur, char_ptr, (size_t)len); + cur += len; + + mrb_gc_arena_restore(mrb, ai); + } + + return cur - buf; +} + + +static size_t +get_syms_block_size(mrb_state *mrb, mrb_irep *irep) +{ + size_t size = 0; + int sym_no; + mrb_int len; + + size += sizeof(uint32_t); /* slen */ + for (sym_no = 0; sym_no < irep->slen; sym_no++) { + size += sizeof(uint16_t); /* snl(n) */ + if (irep->syms[sym_no] != 0) { + mrb_sym2name_len(mrb, irep->syms[sym_no], &len); + size += len + 1; /* sn(n) + null char */ + } + } + + return size; +} + +static ptrdiff_t +write_syms_block(mrb_state *mrb, mrb_irep *irep, uint8_t *buf) +{ + int sym_no; + uint8_t *cur = buf; + const char *name; + + cur += uint32_to_bin(irep->slen, cur); /* number of symbol */ + + for (sym_no = 0; sym_no < irep->slen; sym_no++) { + if (irep->syms[sym_no] != 0) { + mrb_int len; + + name = mrb_sym2name_len(mrb, irep->syms[sym_no], &len); + + mrb_assert_int_fit(mrb_int, len, uint16_t, UINT16_MAX); + cur += uint16_to_bin((uint16_t)len, cur); /* length of symbol name */ + memcpy(cur, name, len); /* symbol name */ + cur += (uint16_t)len; + *cur++ = '\0'; + } + else { + cur += uint16_to_bin(MRB_DUMP_NULL_SYM_LEN, cur); /* length of symbol name */ + } + } + + return cur - buf; +} + +static size_t +get_irep_record_size_1(mrb_state *mrb, mrb_irep *irep) +{ + size_t size = 0; + + size += get_irep_header_size(mrb); + size += get_iseq_block_size(mrb, irep); + size += get_pool_block_size(mrb, irep); + size += get_syms_block_size(mrb, irep); + return size; +} + +static size_t +get_irep_record_size(mrb_state *mrb, mrb_irep *irep) +{ + size_t size = 0; + int irep_no; + + size = get_irep_record_size_1(mrb, irep); + for (irep_no = 0; irep_no < irep->rlen; irep_no++) { + size += get_irep_record_size(mrb, irep->reps[irep_no]); + } + return size; +} + +static int +write_irep_record(mrb_state *mrb, mrb_irep *irep, uint8_t *bin, size_t *irep_record_size, uint8_t flags) +{ + int i; + uint8_t *src = bin; + + if (irep == NULL) { + return MRB_DUMP_INVALID_IREP; + } + + *irep_record_size = get_irep_record_size_1(mrb, irep); + if (*irep_record_size == 0) { + return MRB_DUMP_GENERAL_FAILURE; + } + + bin += write_irep_header(mrb, irep, bin); + bin += write_iseq_block(mrb, irep, bin, flags); + bin += write_pool_block(mrb, irep, bin); + bin += write_syms_block(mrb, irep, bin); + + for (i = 0; i < irep->rlen; i++) { + int result; + size_t rsize; + + result = write_irep_record(mrb, irep->reps[i], bin, &rsize, flags); + if (result != MRB_DUMP_OK) { + return result; + } + bin += rsize; + } + *irep_record_size = bin - src; + return MRB_DUMP_OK; +} + +static uint32_t +write_footer(mrb_state *mrb, uint8_t *bin) +{ + struct rite_binary_footer footer; + + memcpy(footer.section_ident, RITE_BINARY_EOF, sizeof(footer.section_ident)); + uint32_to_bin(sizeof(struct rite_binary_footer), footer.section_size); + memcpy(bin, &footer, sizeof(struct rite_binary_footer)); + + return sizeof(struct rite_binary_footer); +} + + +static int +write_section_irep_header(mrb_state *mrb, size_t section_size, uint8_t *bin) +{ + struct rite_section_irep_header *header = (struct rite_section_irep_header*)bin; + + memcpy(header->section_ident, RITE_SECTION_IREP_IDENT, sizeof(header->section_ident)); + + mrb_assert_int_fit(size_t, section_size, uint32_t, UINT32_MAX); + uint32_to_bin((uint32_t)section_size, header->section_size); + memcpy(header->rite_version, RITE_VM_VER, sizeof(header->rite_version)); + + return MRB_DUMP_OK; +} + +static int +write_section_irep(mrb_state *mrb, mrb_irep *irep, uint8_t *bin, size_t *len_p, uint8_t flags) +{ + int result; + size_t rsize = 0; + uint8_t *cur = bin; + + if (mrb == NULL || bin == NULL) { + return MRB_DUMP_INVALID_ARGUMENT; + } + + cur += sizeof(struct rite_section_irep_header); + + result = write_irep_record(mrb, irep, cur, &rsize, flags); + if (result != MRB_DUMP_OK) { + return result; + } + *len_p = cur - bin + rsize; + write_section_irep_header(mrb, *len_p, bin); + + return MRB_DUMP_OK; +} + +static int +write_section_lineno_header(mrb_state *mrb, size_t section_size, uint8_t *bin) +{ + struct rite_section_lineno_header *header = (struct rite_section_lineno_header*)bin; + + memcpy(header->section_ident, RITE_SECTION_LINENO_IDENT, sizeof(header->section_ident)); + uint32_to_bin((uint32_t)section_size, header->section_size); + + return MRB_DUMP_OK; +} + +static size_t +get_lineno_record_size(mrb_state *mrb, mrb_irep *irep) +{ + size_t size = 0; + + size += sizeof(uint32_t); /* record size */ + size += sizeof(uint16_t); /* filename size */ + if (irep->filename) { + size += strlen(irep->filename); /* filename */ + } + size += sizeof(uint32_t); /* niseq */ + if (irep->lines) { + size += sizeof(uint16_t) * irep->ilen; /* lineno */ + } + + return size; +} + +static size_t +write_lineno_record_1(mrb_state *mrb, mrb_irep *irep, uint8_t* bin) +{ + uint8_t *cur = bin; + int iseq_no; + size_t filename_len; + ptrdiff_t diff; + + cur += sizeof(uint32_t); /* record size */ + + if (irep->filename) { + filename_len = strlen(irep->filename); + } + else { + filename_len = 0; + } + mrb_assert_int_fit(size_t, filename_len, uint16_t, UINT16_MAX); + cur += uint16_to_bin((uint16_t)filename_len, cur); /* filename size */ + + if (filename_len) { + memcpy(cur, irep->filename, filename_len); + cur += filename_len; /* filename */ + } + + if (irep->lines) { + mrb_assert_int_fit(size_t, irep->ilen, uint32_t, UINT32_MAX); + cur += uint32_to_bin((uint32_t)(irep->ilen), cur); /* niseq */ + for (iseq_no = 0; iseq_no < irep->ilen; iseq_no++) { + cur += uint16_to_bin(irep->lines[iseq_no], cur); /* opcode */ + } + } + else { + cur += uint32_to_bin(0, cur); /* niseq */ + } + + diff = cur - bin; + mrb_assert_int_fit(ptrdiff_t, diff, uint32_t, UINT32_MAX); + + uint32_to_bin((uint32_t)diff, bin); /* record size */ + + mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX); + return (size_t)diff; +} + +static size_t +write_lineno_record(mrb_state *mrb, mrb_irep *irep, uint8_t* bin) +{ + size_t rlen, size = 0; + int i; + + rlen = write_lineno_record_1(mrb, irep, bin); + bin += rlen; + size += rlen; + for (i=0; i<irep->rlen; i++) { + rlen = write_lineno_record(mrb, irep, bin); + bin += rlen; + size += rlen; + } + return size; +} + +static int +write_section_lineno(mrb_state *mrb, mrb_irep *irep, uint8_t *bin) +{ + size_t section_size = 0; + size_t rlen = 0; /* size of irep record */ + uint8_t *cur = bin; + + if (mrb == NULL || bin == NULL) { + return MRB_DUMP_INVALID_ARGUMENT; + } + + cur += sizeof(struct rite_section_lineno_header); + section_size += sizeof(struct rite_section_lineno_header); + + rlen = write_lineno_record(mrb, irep, cur); + section_size += rlen; + + write_section_lineno_header(mrb, section_size, bin); + + return MRB_DUMP_OK; +} + +static size_t +get_debug_record_size(mrb_state *mrb, mrb_irep *irep) +{ + size_t ret = 0; + uint16_t f_idx; + int i; + + ret += sizeof(uint32_t); /* record size */ + ret += sizeof(uint16_t); /* file count */ + + for (f_idx = 0; f_idx < irep->debug_info->flen; ++f_idx) { + mrb_irep_debug_info_file const* file = irep->debug_info->files[f_idx]; + + ret += sizeof(uint32_t); /* position */ + ret += sizeof(uint16_t); /* filename index */ + + /* lines */ + ret += sizeof(uint32_t); /* entry count */ + ret += sizeof(uint8_t); /* line type */ + switch (file->line_type) { + case mrb_debug_line_ary: + ret += sizeof(uint16_t) * (size_t)(file->line_entry_count); + break; + + case mrb_debug_line_flat_map: + ret += (sizeof(uint32_t) + sizeof(uint16_t)) * (size_t)(file->line_entry_count); + break; + + default: mrb_assert(0); break; + } + } + for (i=0; i<irep->rlen; i++) { + ret += get_debug_record_size(mrb, irep->reps[i]); + } + + return ret; +} + +static int +find_filename_index(const mrb_sym *ary, int ary_len, mrb_sym s) +{ + int i; + + for (i = 0; i < ary_len; ++i) { + if (ary[i] == s) { return i; } + } + return -1; +} + +static size_t +get_filename_table_size(mrb_state *mrb, mrb_irep *irep, mrb_sym **fp, uint16_t *lp) +{ + mrb_sym *filenames = *fp; + size_t size = 0; + mrb_irep_debug_info *di = irep->debug_info; + int i; + + mrb_assert(lp); + for (i = 0; i < di->flen; ++i) { + mrb_irep_debug_info_file *file; + mrb_int filename_len; + + file = di->files[i]; + if (find_filename_index(filenames, *lp, file->filename_sym) == -1) { + /* register filename */ + *lp += 1; + *fp = filenames = (mrb_sym *)mrb_realloc(mrb, filenames, sizeof(mrb_sym) * (*lp)); + filenames[*lp - 1] = file->filename_sym; + + /* filename */ + mrb_sym2name_len(mrb, file->filename_sym, &filename_len); + size += sizeof(uint16_t) + (size_t)filename_len; + } + } + for (i=0; i<irep->rlen; i++) { + size += get_filename_table_size(mrb, irep->reps[i], fp, lp); + } + return size; +} + +static size_t +write_debug_record_1(mrb_state *mrb, mrb_irep *irep, uint8_t *bin, mrb_sym const* filenames, uint16_t filenames_len) +{ + uint8_t *cur; + uint16_t f_idx; + ptrdiff_t ret; + + cur = bin + sizeof(uint32_t); /* skip record size */ + cur += uint16_to_bin(irep->debug_info->flen, cur); /* file count */ + + for (f_idx = 0; f_idx < irep->debug_info->flen; ++f_idx) { + int filename_idx; + const mrb_irep_debug_info_file *file = irep->debug_info->files[f_idx]; + + /* position */ + cur += uint32_to_bin(file->start_pos, cur); + + /* filename index */ + filename_idx = find_filename_index(filenames, filenames_len, + file->filename_sym); + mrb_assert_int_fit(int, filename_idx, uint16_t, UINT16_MAX); + cur += uint16_to_bin((uint16_t)filename_idx, cur); + + /* lines */ + cur += uint32_to_bin(file->line_entry_count, cur); + cur += uint8_to_bin(file->line_type, cur); + switch (file->line_type) { + case mrb_debug_line_ary: { + uint32_t l; + for (l = 0; l < file->line_entry_count; ++l) { + cur += uint16_to_bin(file->lines.ary[l], cur); + } + } break; + + case mrb_debug_line_flat_map: { + uint32_t line; + for (line = 0; line < file->line_entry_count; ++line) { + cur += uint32_to_bin(file->lines.flat_map[line].start_pos, cur); + cur += uint16_to_bin(file->lines.flat_map[line].line, cur); + } + } break; + + default: mrb_assert(0); break; + } + } + + ret = cur - bin; + mrb_assert_int_fit(ptrdiff_t, ret, uint32_t, UINT32_MAX); + uint32_to_bin((uint32_t)ret, bin); + + mrb_assert_int_fit(ptrdiff_t, ret, size_t, SIZE_MAX); + return (size_t)ret; +} + +static size_t +write_debug_record(mrb_state *mrb, mrb_irep *irep, uint8_t *bin, mrb_sym const* filenames, uint16_t filenames_len) +{ + size_t size, len; + int irep_no; + + size = len = write_debug_record_1(mrb, irep, bin, filenames, filenames_len); + bin += len; + for (irep_no = 0; irep_no < irep->rlen; irep_no++) { + len = write_debug_record(mrb, irep->reps[irep_no], bin, filenames, filenames_len); + bin += len; + size += len; + } + + mrb_assert(size == get_debug_record_size(mrb, irep)); + return size; +} + +static int +write_section_debug(mrb_state *mrb, mrb_irep *irep, uint8_t *cur, mrb_sym const *filenames, uint16_t filenames_len) +{ + size_t section_size = 0; + const uint8_t *bin = cur; + struct rite_section_debug_header *header; + size_t dlen; + uint16_t i; + char const *sym; mrb_int sym_len; + + if (mrb == NULL || cur == NULL) { + return MRB_DUMP_INVALID_ARGUMENT; + } + + header = (struct rite_section_debug_header *)bin; + cur += sizeof(struct rite_section_debug_header); + section_size += sizeof(struct rite_section_debug_header); + + /* filename table */ + cur += uint16_to_bin(filenames_len, cur); + section_size += sizeof(uint16_t); + for (i = 0; i < filenames_len; ++i) { + sym = mrb_sym2name_len(mrb, filenames[i], &sym_len); + mrb_assert(sym); + cur += uint16_to_bin(sym_len, cur); + memcpy(cur, sym, sym_len); + cur += sym_len; + section_size += sizeof(uint16_t) + sym_len; + } + + /* debug records */ + dlen = write_debug_record(mrb, irep, cur, filenames, filenames_len); + section_size += dlen; + + memcpy(header->section_ident, RITE_SECTION_DEBUG_IDENT, sizeof(header->section_ident)); + mrb_assert(section_size <= INT32_MAX); + uint32_to_bin((uint32_t)section_size, header->section_size); + + return MRB_DUMP_OK; +} + +static void +create_lv_sym_table(mrb_state *mrb, const mrb_irep *irep, mrb_sym **syms, uint32_t *syms_len) +{ + int i; + + if (*syms == NULL) { + *syms = (mrb_sym*)mrb_malloc(mrb, sizeof(mrb_sym) * 1); + } + + for (i = 0; i + 1 < irep->nlocals; ++i) { + mrb_sym const name = irep->lv[i].name; + if (name == 0) continue; + if (find_filename_index(*syms, *syms_len, name) != -1) continue; + + ++(*syms_len); + *syms = (mrb_sym*)mrb_realloc(mrb, *syms, sizeof(mrb_sym) * (*syms_len)); + (*syms)[*syms_len - 1] = name; + } + + for (i = 0; i < irep->rlen; ++i) { + create_lv_sym_table(mrb, irep->reps[i], syms, syms_len); + } +} + +static int +write_lv_sym_table(mrb_state *mrb, uint8_t **start, mrb_sym const *syms, uint32_t syms_len) +{ + uint8_t *cur = *start; + uint32_t i; + const char *str; + mrb_int str_len; + + cur += uint32_to_bin(syms_len, cur); + + for (i = 0; i < syms_len; ++i) { + str = mrb_sym2name_len(mrb, syms[i], &str_len); + cur += uint16_to_bin(str_len, cur); + memcpy(cur, str, str_len); + cur += str_len; + } + + *start = cur; + + return MRB_DUMP_OK; +} + +static int +write_lv_record(mrb_state *mrb, const mrb_irep *irep, uint8_t **start, mrb_sym const *syms, uint32_t syms_len) +{ + uint8_t *cur = *start; + int i; + + for (i = 0; i + 1 < irep->nlocals; ++i) { + if (irep->lv[i].name == 0) { + cur += uint16_to_bin(RITE_LV_NULL_MARK, cur); + cur += uint16_to_bin(0, cur); + } + else { + int const sym_idx = find_filename_index(syms, syms_len, irep->lv[i].name); + mrb_assert(sym_idx != -1); /* local variable name must be in syms */ + + cur += uint16_to_bin(sym_idx, cur); + cur += uint16_to_bin(irep->lv[i].r, cur); + } + } + + for (i = 0; i < irep->rlen; ++i) { + write_lv_record(mrb, irep->reps[i], &cur, syms, syms_len); + } + + *start = cur; + + return MRB_DUMP_OK; +} + +static size_t +get_lv_record_size(mrb_state *mrb, mrb_irep *irep) +{ + size_t ret = 0; + int i; + + ret += (sizeof(uint16_t) + sizeof(uint16_t)) * (irep->nlocals - 1); + + for (i = 0; i < irep->rlen; ++i) { + ret += get_lv_record_size(mrb, irep->reps[i]); + } + + return ret; +} + +static size_t +get_lv_section_size(mrb_state *mrb, mrb_irep *irep, mrb_sym const *syms, uint32_t syms_len) +{ + size_t ret = 0, i; + + ret += sizeof(uint32_t); /* syms_len */ + ret += sizeof(uint16_t) * syms_len; /* symbol name lengths */ + for (i = 0; i < syms_len; ++i) { + mrb_int str_len; + mrb_sym2name_len(mrb, syms[i], &str_len); + ret += str_len; + } + + ret += get_lv_record_size(mrb, irep); + + return ret; +} + +static int +write_section_lv(mrb_state *mrb, mrb_irep *irep, uint8_t *start, mrb_sym const *syms, uint32_t const syms_len) +{ + uint8_t *cur = start; + struct rite_section_lv_header *header; + ptrdiff_t diff; + int result = MRB_DUMP_OK; + + if (mrb == NULL || cur == NULL) { + return MRB_DUMP_INVALID_ARGUMENT; + } + + header = (struct rite_section_lv_header*)cur; + cur += sizeof(struct rite_section_lv_header); + + result = write_lv_sym_table(mrb, &cur, syms, syms_len); + if (result != MRB_DUMP_OK) { + goto lv_section_exit; + } + + result = write_lv_record(mrb, irep, &cur, syms, syms_len); + if (result != MRB_DUMP_OK) { + goto lv_section_exit; + } + + memcpy(header->section_ident, RITE_SECTION_LV_IDENT, sizeof(header->section_ident)); + + diff = cur - start; + mrb_assert_int_fit(ptrdiff_t, diff, size_t, SIZE_MAX); + uint32_to_bin((uint32_t)diff, header->section_size); + +lv_section_exit: + return result; +} + +static int +write_rite_binary_header(mrb_state *mrb, size_t binary_size, uint8_t *bin, uint8_t flags) +{ + struct rite_binary_header *header = (struct rite_binary_header *)bin; + uint16_t crc; + uint32_t offset; + + switch (flags & DUMP_ENDIAN_NAT) { + endian_big: + case DUMP_ENDIAN_BIG: + memcpy(header->binary_ident, RITE_BINARY_IDENT, sizeof(header->binary_ident)); + break; + endian_little: + case DUMP_ENDIAN_LIL: + memcpy(header->binary_ident, RITE_BINARY_IDENT_LIL, sizeof(header->binary_ident)); + break; + + case DUMP_ENDIAN_NAT: + if (bigendian_p()) goto endian_big; + goto endian_little; + break; + } + + memcpy(header->binary_version, RITE_BINARY_FORMAT_VER, sizeof(header->binary_version)); + memcpy(header->compiler_name, RITE_COMPILER_NAME, sizeof(header->compiler_name)); + memcpy(header->compiler_version, RITE_COMPILER_VERSION, sizeof(header->compiler_version)); + mrb_assert(binary_size <= UINT32_MAX); + uint32_to_bin((uint32_t)binary_size, header->binary_size); + + offset = (uint32_t)((&(header->binary_crc[0]) - bin) + sizeof(uint16_t)); + crc = calc_crc_16_ccitt(bin + offset, binary_size - offset, 0); + uint16_to_bin(crc, header->binary_crc); + + return MRB_DUMP_OK; +} + +static mrb_bool +is_debug_info_defined(mrb_irep *irep) +{ + int i; + + if (!irep->debug_info) return FALSE; + for (i=0; i<irep->rlen; i++) { + if (!is_debug_info_defined(irep->reps[i])) return FALSE; + } + return TRUE; +} + +static mrb_bool +is_lv_defined(mrb_irep *irep) +{ + int i; + + if (irep->lv) { return TRUE; } + + for (i = 0; i < irep->rlen; ++i) { + if (is_lv_defined(irep->reps[i])) { return TRUE; } + } + + return FALSE; +} + +static uint8_t +dump_flags(uint8_t flags, uint8_t native) +{ + if (native == FLAG_BYTEORDER_NATIVE) { + if ((flags & DUMP_ENDIAN_NAT) == 0) { + return (flags & DUMP_DEBUG_INFO) | DUMP_ENDIAN_NAT; + } + return flags; + } + if ((flags & DUMP_ENDIAN_NAT) == 0) { + return (flags & DUMP_DEBUG_INFO) | DUMP_ENDIAN_BIG; + } + return flags; +} + +static int +dump_irep(mrb_state *mrb, mrb_irep *irep, uint8_t flags, uint8_t **bin, size_t *bin_size) +{ + int result = MRB_DUMP_GENERAL_FAILURE; + size_t malloc_size; + size_t section_irep_size; + size_t section_lineno_size = 0, section_lv_size = 0; + uint8_t *cur = NULL; + mrb_bool const debug_info_defined = is_debug_info_defined(irep), lv_defined = is_lv_defined(irep); + mrb_sym *lv_syms = NULL; uint32_t lv_syms_len = 0; + mrb_sym *filenames = NULL; uint16_t filenames_len = 0; + + if (mrb == NULL) { + *bin = NULL; + return MRB_DUMP_GENERAL_FAILURE; + } + + section_irep_size = sizeof(struct rite_section_irep_header); + section_irep_size += get_irep_record_size(mrb, irep); + + /* DEBUG section size */ + if (flags & DUMP_DEBUG_INFO) { + if (debug_info_defined) { + section_lineno_size += sizeof(struct rite_section_debug_header); + /* filename table */ + filenames = (mrb_sym*)mrb_malloc(mrb, sizeof(mrb_sym) + 1); + + /* filename table size */ + section_lineno_size += sizeof(uint16_t); + section_lineno_size += get_filename_table_size(mrb, irep, &filenames, &filenames_len); + + section_lineno_size += get_debug_record_size(mrb, irep); + } + else { + section_lineno_size += sizeof(struct rite_section_lineno_header); + section_lineno_size += get_lineno_record_size(mrb, irep); + } + } + + if (lv_defined) { + section_lv_size += sizeof(struct rite_section_lv_header); + create_lv_sym_table(mrb, irep, &lv_syms, &lv_syms_len); + section_lv_size += get_lv_section_size(mrb, irep, lv_syms, lv_syms_len); + } + + malloc_size = sizeof(struct rite_binary_header) + + section_irep_size + section_lineno_size + section_lv_size + + sizeof(struct rite_binary_footer); + cur = *bin = (uint8_t*)mrb_malloc(mrb, malloc_size); + cur += sizeof(struct rite_binary_header); + + result = write_section_irep(mrb, irep, cur, §ion_irep_size, flags); + if (result != MRB_DUMP_OK) { + goto error_exit; + } + cur += section_irep_size; + *bin_size = sizeof(struct rite_binary_header) + + section_irep_size + section_lineno_size + section_lv_size + + sizeof(struct rite_binary_footer); + + /* write DEBUG section */ + if (flags & DUMP_DEBUG_INFO) { + if (debug_info_defined) { + result = write_section_debug(mrb, irep, cur, filenames, filenames_len); + } + else { + result = write_section_lineno(mrb, irep, cur); + } + if (result != MRB_DUMP_OK) { + goto error_exit; + } + cur += section_lineno_size; + } + + if (lv_defined) { + result = write_section_lv(mrb, irep, cur, lv_syms, lv_syms_len); + if (result != MRB_DUMP_OK) { + goto error_exit; + } + cur += section_lv_size; + } + + write_footer(mrb, cur); + write_rite_binary_header(mrb, *bin_size, *bin, flags); + +error_exit: + if (result != MRB_DUMP_OK) { + mrb_free(mrb, *bin); + *bin = NULL; + } + mrb_free(mrb, lv_syms); + mrb_free(mrb, filenames); + return result; +} + +int +mrb_dump_irep(mrb_state *mrb, mrb_irep *irep, uint8_t flags, uint8_t **bin, size_t *bin_size) +{ + return dump_irep(mrb, irep, dump_flags(flags, FLAG_BYTEORDER_NONATIVE), bin, bin_size); +} + +#ifndef MRB_DISABLE_STDIO + +int +mrb_dump_irep_binary(mrb_state *mrb, mrb_irep *irep, uint8_t flags, FILE* fp) +{ + uint8_t *bin = NULL; + size_t bin_size = 0; + int result; + + if (fp == NULL) { + return MRB_DUMP_INVALID_ARGUMENT; + } + + result = dump_irep(mrb, irep, dump_flags(flags, FLAG_BYTEORDER_NONATIVE), &bin, &bin_size); + if (result == MRB_DUMP_OK) { + if (fwrite(bin, sizeof(bin[0]), bin_size, fp) != bin_size) { + result = MRB_DUMP_WRITE_FAULT; + } + } + + mrb_free(mrb, bin); + return result; +} + +static mrb_bool +dump_bigendian_p(uint8_t flags) +{ + switch (flags & DUMP_ENDIAN_NAT) { + case DUMP_ENDIAN_BIG: + return TRUE; + case DUMP_ENDIAN_LIL: + return FALSE; + default: + case DUMP_ENDIAN_NAT: + return bigendian_p(); + } +} + +int +mrb_dump_irep_cfunc(mrb_state *mrb, mrb_irep *irep, uint8_t flags, FILE *fp, const char *initname) +{ + uint8_t *bin = NULL; + size_t bin_size = 0, bin_idx = 0; + int result; + + if (fp == NULL || initname == NULL || initname[0] == '\0') { + return MRB_DUMP_INVALID_ARGUMENT; + } + flags = dump_flags(flags, FLAG_BYTEORDER_NATIVE); + result = dump_irep(mrb, irep, flags, &bin, &bin_size); + if (result == MRB_DUMP_OK) { + if (!dump_bigendian_p(flags)) { + if (fprintf(fp, "/* dumped in little endian order.\n" + " use `mrbc -E` option for big endian CPU. */\n") < 0) { + mrb_free(mrb, bin); + return MRB_DUMP_WRITE_FAULT; + } + } + else { + if (fprintf(fp, "/* dumped in big endian order.\n" + " use `mrbc -e` option for better performance on little endian CPU. */\n") < 0) { + mrb_free(mrb, bin); + return MRB_DUMP_WRITE_FAULT; + } + } + if (fprintf(fp, "#include <stdint.h>\n") < 0) { /* for uint8_t under at least Darwin */ + mrb_free(mrb, bin); + return MRB_DUMP_WRITE_FAULT; + } + if (fprintf(fp, + "extern const uint8_t %s[];\n" + "const uint8_t\n" + "#if defined __GNUC__\n" + "__attribute__((aligned(%u)))\n" + "#elif defined _MSC_VER\n" + "__declspec(align(%u))\n" + "#endif\n" + "%s[] = {", + initname, + (uint16_t)MRB_DUMP_ALIGNMENT, (uint16_t)MRB_DUMP_ALIGNMENT, initname) < 0) { + mrb_free(mrb, bin); + return MRB_DUMP_WRITE_FAULT; + } + while (bin_idx < bin_size) { + if (bin_idx % 16 == 0) { + if (fputs("\n", fp) == EOF) { + mrb_free(mrb, bin); + return MRB_DUMP_WRITE_FAULT; + } + } + if (fprintf(fp, "0x%02x,", bin[bin_idx++]) < 0) { + mrb_free(mrb, bin); + return MRB_DUMP_WRITE_FAULT; + } + } + if (fputs("\n};\n", fp) == EOF) { + mrb_free(mrb, bin); + return MRB_DUMP_WRITE_FAULT; + } + } + + mrb_free(mrb, bin); + return result; +} + +#endif /* MRB_DISABLE_STDIO */ |