diff options
Diffstat (limited to 'translate/grt/ghwlib.c')
| -rw-r--r-- | translate/grt/ghwlib.c | 1717 |
1 files changed, 1717 insertions, 0 deletions
diff --git a/translate/grt/ghwlib.c b/translate/grt/ghwlib.c new file mode 100644 index 000000000..827e69851 --- /dev/null +++ b/translate/grt/ghwlib.c @@ -0,0 +1,1717 @@ +/* GHDL Wavefile reader library. + Copyright (C) 2005 Tristan Gingold + + GHDL is free software; you can redistribute it and/or modify it under + the terms of the GNU General Public License as published by the Free + Software Foundation; either version 2, or (at your option) any later + version. + + GHDL is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + for more details. + + You should have received a copy of the GNU General Public License + along with GCC; see the file COPYING. If not, write to the Free + Software Foundation, 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. +*/ + +#include <stdio.h> +#include <stdint.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> + +#include "ghwlib.h" + +int +ghw_open (struct ghw_handler *h, const char *filename) +{ + char hdr[16]; + + h->stream = fopen (filename, "rb"); + if (h->stream == NULL) + return -1; + + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + return -1; + /* Check magic. */ + if (memcmp (hdr, "GHDLwave\n", 9) != 0) + return -2; + /* Check version. */ + if (hdr[9] != 16 + || hdr[10] != 0) + return -2; + h->version = hdr[11]; + if (h->version > 1) + return -3; + if (hdr[12] == 1) + h->word_be = 0; + else if (hdr[12] == 2) + h->word_be = 1; + else + return -4; +#if 0 + /* Endianness. */ + { + int endian; + union { unsigned char b[4]; uint32_t i;} v; + v.i = 0x11223344; + if (v.b[0] == 0x11) + endian = 2; + else if (v.b[0] == 0x44) + endian = 1; + else + return -3; + + if (hdr[12] != 1 && hdr[12] != 2) + return -3; + if (hdr[12] != endian) + h->swap_word = 1; + else + h->swap_word = 0; + } +#endif + h->word_len = hdr[13]; + h->off_len = hdr[14]; + + if (hdr[15] != 0) + return -5; + + h->hie = NULL; + return 0; +} + +int32_t +ghw_get_i32 (struct ghw_handler *h, unsigned char *b) +{ + if (h->word_be) + return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | (b[3] << 0); + else + return (b[3] << 24) | (b[2] << 16) | (b[1] << 8) | (b[0] << 0); +} + +int64_t +ghw_get_i64 (struct ghw_handler *ghw_h, unsigned char *b) +{ + int l, h; + + if (ghw_h->word_be) + { + h = (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | (b[3] << 0); + l = (b[4] << 24) | (b[5] << 16) | (b[6] << 8) | (b[7] << 0); + } + else + { + l = (b[3] << 24) | (b[2] << 16) | (b[1] << 8) | (b[0] << 0); + h = (b[7] << 24) | (b[6] << 16) | (b[5] << 8) | (b[4] << 0); + } + return (((int64_t)h) << 32) | l; +} + +int +ghw_read_byte (struct ghw_handler *h, unsigned char *res) +{ + int v; + + v = fgetc (h->stream); + if (v == EOF) + return -1; + *res = v; + return 0; +} + +int +ghw_read_uleb128 (struct ghw_handler *h, uint32_t *res) +{ + unsigned int r = 0; + unsigned int off = 0; + + while (1) + { + int v = fgetc (h->stream); + if (v == EOF) + return -1; + r |= (v & 0x7f) << off; + if ((v & 0x80) == 0) + break; + off += 7; + } + *res = r; + return 0; +} + +int +ghw_read_sleb128 (struct ghw_handler *h, int32_t *res) +{ + int32_t r = 0; + unsigned int off = 0; + + while (1) + { + int v = fgetc (h->stream); + if (v == EOF) + return -1; + r |= ((int32_t)(v & 0x7f)) << off; + off += 7; + if ((v & 0x80) == 0) + { + if ((v & 0x40) && off < 32) + r |= -1 << off; + break; + } + } + *res = r; + return 0; +} + +int +ghw_read_lsleb128 (struct ghw_handler *h, int64_t *res) +{ + int64_t r = 0; + unsigned int off = 0; + + while (1) + { + int v = fgetc (h->stream); + if (v == EOF) + return -1; + r |= ((int64_t)(v & 0x7f)) << off; + off += 7; + if ((v & 0x80) == 0) + { + if ((v & 0x40) && off < 64) + r |= __INT64_C (-1) << off; + break; + } + } + *res = r; + return 0; +} + +int +ghw_read_f64 (struct ghw_handler *h, double *res) +{ + /* FIXME: handle byte order. */ + if (fread (res, sizeof (*res), 1, h->stream) != 1) + return -1; + return 0; +} + +const char * +ghw_read_strid (struct ghw_handler *h) +{ + unsigned int id; + if (ghw_read_uleb128 (h, &id) != 0) + return NULL; + return h->str_table[id]; +} + +union ghw_type * +ghw_read_typeid (struct ghw_handler *h) +{ + unsigned int id; + if (ghw_read_uleb128 (h, &id) != 0) + return NULL; + return h->types[id - 1]; +} + +union ghw_range * +ghw_read_range (struct ghw_handler *h) +{ + int t = fgetc (h->stream); + if (t == EOF) + return NULL; + switch (t & 0x7f) + { + case ghdl_rtik_type_e8: + { + struct ghw_range_e8 *r; + r = malloc (sizeof (struct ghw_range_e8)); + r->kind = t & 0x7f; + r->dir = (t & 0x80) != 0; + if (ghw_read_byte (h, &r->left) != 0) + return NULL; + if (ghw_read_byte (h, &r->right) != 0) + return NULL; + return (union ghw_range *)r; + } + case ghdl_rtik_type_i32: + case ghdl_rtik_type_p32: + { + struct ghw_range_i32 *r; + r = malloc (sizeof (struct ghw_range_i32)); + r->kind = t & 0x7f; + r->dir = (t & 0x80) != 0; + if (ghw_read_sleb128 (h, &r->left) != 0) + return NULL; + if (ghw_read_sleb128 (h, &r->right) != 0) + return NULL; + return (union ghw_range *)r; + } + case ghdl_rtik_type_i64: + case ghdl_rtik_type_p64: + { + struct ghw_range_i64 *r; + r = malloc (sizeof (struct ghw_range_i64)); + r->kind = t & 0x7f; + r->dir = (t & 0x80) != 0; + if (ghw_read_lsleb128 (h, &r->left) != 0) + return NULL; + if (ghw_read_lsleb128 (h, &r->right) != 0) + return NULL; + return (union ghw_range *)r; + } + case ghdl_rtik_type_f64: + { + struct ghw_range_f64 *r; + r = malloc (sizeof (struct ghw_range_f64)); + r->kind = t & 0x7f; + r->dir = (t & 0x80) != 0; + if (ghw_read_f64 (h, &r->left) != 0) + return NULL; + if (ghw_read_f64 (h, &r->right) != 0) + return NULL; + return (union ghw_range *)r; + } + default: + fprintf (stderr, "ghw_read_range: type %d unhandled\n", t & 0x7f); + return NULL; + } +} + +int +ghw_read_str (struct ghw_handler *h) +{ + char hdr[12]; + int i; + char *p; + int prev_len; + + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + return -1; + + if (hdr[0] != 0 || hdr[1] != 0 || hdr[2] != 0 || hdr[3] != 0) + return -1; + h->nbr_str = ghw_get_i32 (h, &hdr[4]); + h->nbr_str++; + h->str_size = ghw_get_i32 (h, &hdr[8]); + h->str_table = (char **)malloc ((h->nbr_str + 1) * sizeof (char *)); + h->str_content = (char *)malloc (h->str_size + h->nbr_str + 1); + + if (h->flag_verbose) + { + printf ("Number of strings: %d\n", h->nbr_str - 1); + printf ("String table size: %d\n", h->str_size); + } + + h->str_table[0] = "<anon>"; + p = h->str_content; + prev_len = 0; + for (i = 1; i < h->nbr_str; i++) + { + int j; + int c; + char *prev; + int sh; + + h->str_table[i] = p; + prev = h->str_table[i - 1]; + for (j = 0; j < prev_len; j++) + *p++ = prev[j]; + + while (1) + { + c = fgetc (h->stream); + if (c == EOF) + return -1; + if ((c >= 0 && c <= 31) + || (c >= 128 && c <= 159)) + break; + *p++ = c; + } + *p++ = 0; + + if (h->flag_verbose > 1) + printf ("string %d (pl=%d): %s\n", i, prev_len, h->str_table[i]); + + prev_len = c & 0x1f; + sh = 5; + while (c >= 128) + { + c = fgetc (h->stream); + if (c == EOF) + return -1; + prev_len |= (c & 0x1f) << sh; + sh += 5; + } + } + if (fread (hdr, 4, 1, h->stream) != 1) + return -1; + if (memcmp (hdr, "EOS", 4) != 0) + return -1; + return 0; +} + +union ghw_type * +ghw_get_base_type (union ghw_type *t) +{ + switch (t->kind) + { + case ghdl_rtik_type_b2: + case ghdl_rtik_type_e8: + case ghdl_rtik_type_e32: + case ghdl_rtik_type_i32: + case ghdl_rtik_type_i64: + case ghdl_rtik_type_f64: + case ghdl_rtik_type_p32: + case ghdl_rtik_type_p64: + return t; + case ghdl_rtik_subtype_scalar: + return t->ss.base; + case ghdl_rtik_subtype_array: + return (union ghw_type*)(t->sa.base); + default: + fprintf (stderr, "ghw_get_base_type: cannot handle type %d\n", t->kind); + abort (); + } +} + +int +get_nbr_elements (union ghw_type *t) +{ + switch (t->kind) + { + case ghdl_rtik_type_b2: + case ghdl_rtik_type_e8: + case ghdl_rtik_type_e32: + case ghdl_rtik_type_i32: + case ghdl_rtik_type_i64: + case ghdl_rtik_type_f64: + case ghdl_rtik_type_p32: + case ghdl_rtik_type_p64: + case ghdl_rtik_subtype_scalar: + return 1; + case ghdl_rtik_subtype_array: + case ghdl_rtik_subtype_array_ptr: + return t->sa.nbr_el; + case ghdl_rtik_type_record: + return t->rec.nbr_el; + default: + fprintf (stderr, "get_nbr_elements: unhandled type %d\n", t->kind); + abort (); + } +} + +int +get_range_length (union ghw_range *rng) +{ + switch (rng->kind) + { + case ghdl_rtik_type_i32: + if (rng->i32.dir) + return (rng->i32.left - rng->i32.right + 1); + else + return (rng->i32.right - rng->i32.left + 1); + default: + fprintf (stderr, "get_range_length: unhandled kind %d\n", rng->kind); + abort (); + } +} + +int +ghw_read_type (struct ghw_handler *h) +{ + char hdr[8]; + int i; + + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + return -1; + + if (hdr[0] != 0 || hdr[1] != 0 || hdr[2] != 0 || hdr[3] != 0) + return -1; + h->nbr_types = ghw_get_i32 (h, &hdr[4]); + h->types = (union ghw_type **) + malloc (h->nbr_types * sizeof (union ghw_type *)); + + for (i = 0; i < h->nbr_types; i++) + { + int t; + + t = fgetc (h->stream); + if (t == EOF) + return -1; + /* printf ("type[%d]= %d\n", i, t); */ + switch (t) + { + case ghdl_rtik_type_b2: + case ghdl_rtik_type_e8: + { + struct ghw_type_enum *e; + int j; + + e = malloc (sizeof (struct ghw_type_enum)); + e->kind = t; + e->wkt = ghw_wkt_unknown; + e->name = ghw_read_strid (h); + if (ghw_read_uleb128 (h, &e->nbr) != 0) + return -1; + e->lits = (const char **) malloc (e->nbr * sizeof (char *)); + if (h->flag_verbose > 1) + printf ("enum %s:", e->name); + for (j = 0; j < e->nbr; j++) + { + e->lits[j] = ghw_read_strid (h); + if (h->flag_verbose > 1) + printf (" %s", e->lits[j]); + } + if (h->flag_verbose > 1) + printf ("\n"); + h->types[i] = (union ghw_type *)e; + } + break; + case ghdl_rtik_type_i32: + case ghdl_rtik_type_i64: + case ghdl_rtik_type_f64: + { + struct ghw_type_scalar *sc; + + sc = malloc (sizeof (struct ghw_type_scalar)); + sc->kind = t; + sc->name = ghw_read_strid (h); + if (h->flag_verbose > 1) + printf ("scalar: %s\n", sc->name); + h->types[i] = (union ghw_type *)sc; + } + break; + case ghdl_rtik_type_p32: + case ghdl_rtik_type_p64: + { + struct ghw_type_physical *ph; + + ph = malloc (sizeof (struct ghw_type_physical)); + ph->kind = t; + ph->name = ghw_read_strid (h); + if (h->version == 0) + ph->nbr_units = 0; + else + { + int i; + + if (ghw_read_uleb128 (h, &ph->nbr_units) != 0) + return -1; + ph->units = malloc (ph->nbr_units * sizeof (struct ghw_unit)); + for (i = 0; i < ph->nbr_units; i++) + { + ph->units[i].name = ghw_read_strid (h); + if (ghw_read_lsleb128 (h, &ph->units[i].val) < 0) + return -1; + } + } + if (h->flag_verbose > 1) + printf ("physical: %s\n", ph->name); + h->types[i] = (union ghw_type *)ph; + } + break; + case ghdl_rtik_subtype_scalar: + { + struct ghw_subtype_scalar *ss; + + ss = malloc (sizeof (struct ghw_subtype_scalar)); + ss->kind = t; + ss->name = ghw_read_strid (h); + ss->base = ghw_read_typeid (h); + ss->rng = ghw_read_range (h); + if (h->flag_verbose > 1) + printf ("subtype scalar: %s\n", ss->name); + h->types[i] = (union ghw_type *)ss; + } + break; + case ghdl_rtik_type_array: + { + struct ghw_type_array *arr; + int j; + + arr = malloc (sizeof (struct ghw_type_array)); + arr->kind = t; + arr->name = ghw_read_strid (h); + arr->el = ghw_read_typeid (h); + if (ghw_read_uleb128 (h, &arr->nbr_dim) != 0) + return -1; + arr->dims = (union ghw_type **) + malloc (arr->nbr_dim * sizeof (union ghw_type *)); + for (j = 0; j < arr->nbr_dim; j++) + arr->dims[j] = ghw_read_typeid (h); + if (h->flag_verbose > 1) + printf ("array: %s\n", arr->name); + h->types[i] = (union ghw_type *)arr; + } + break; + case ghdl_rtik_subtype_array: + case ghdl_rtik_subtype_array_ptr: + { + struct ghw_subtype_array *sa; + int j; + int nbr_el; + + sa = malloc (sizeof (struct ghw_subtype_array)); + sa->kind = t; + sa->name = ghw_read_strid (h); + sa->base = (struct ghw_type_array *)ghw_read_typeid (h); + nbr_el = get_nbr_elements (sa->base->el); + sa->rngs = malloc (sa->base->nbr_dim * sizeof (union ghw_range *)); + for (j = 0; j < sa->base->nbr_dim; j++) + { + sa->rngs[j] = ghw_read_range (h); + nbr_el *= get_range_length (sa->rngs[j]); + } + sa->nbr_el = nbr_el; + if (h->flag_verbose > 1) + printf ("subtype array: %s (nbr_el=%d)\n", sa->name, sa->nbr_el); + h->types[i] = (union ghw_type *)sa; + } + break; + case ghdl_rtik_type_record: + { + struct ghw_type_record *rec; + int j; + int nbr_el; + + rec = malloc (sizeof (struct ghw_type_record)); + rec->kind = t; + rec->name = ghw_read_strid (h); + if (ghw_read_uleb128 (h, &rec->nbr_fields) != 0) + return -1; + rec->el = malloc + (rec->nbr_fields * sizeof (struct ghw_record_element)); + nbr_el = 0; + for (j = 0; j < rec->nbr_fields; j++) + { + rec->el[j].name = ghw_read_strid (h); + rec->el[j].type = ghw_read_typeid (h); + nbr_el += get_nbr_elements (rec->el[j].type); + } + rec->nbr_el = nbr_el; + if (h->flag_verbose > 1) + printf ("record type: %s (nbr_el=%d)\n", rec->name, rec->nbr_el); + h->types[i] = (union ghw_type *)rec; + } + break; + default: + fprintf (stderr, "ghw_read_type: unknown type %d\n", t); + return -1; + } + } + if (fgetc (h->stream) != 0) + return -1; + return 0; +} + +int +ghw_read_wk_types (struct ghw_handler *h) +{ + char hdr[4]; + + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + return -1; + + if (hdr[0] != 0 || hdr[1] != 0 || hdr[2] != 0 || hdr[3] != 0) + return -1; + + while (1) + { + int t; + union ghw_type *tid; + + t = fgetc (h->stream); + if (t == EOF) + return -1; + else if (t == 0) + break; + + tid = ghw_read_typeid (h); + if (tid->kind == ghdl_rtik_type_b2 + || tid->kind == ghdl_rtik_type_e8) + { + if (h->flag_verbose > 0) + printf ("%s: wkt=%d\n", tid->en.name, t); + tid->en.wkt = t; + } + } + return 0; +} + +void +ghw_disp_typename (struct ghw_handler *h, union ghw_type *t) +{ + printf ("%s", t->common.name); +} + +/* Read a signal composed of severals elements. */ +int +ghw_read_signal (struct ghw_handler *h, unsigned int *sigs, union ghw_type *t) +{ + switch (t->kind) + { + case ghdl_rtik_type_b2: + case ghdl_rtik_type_e8: + case ghdl_rtik_type_e32: + case ghdl_rtik_subtype_scalar: + { + unsigned int sig_el; + + if (ghw_read_uleb128 (h, &sig_el) < 0) + return -1; + *sigs = sig_el; + if (sig_el >= h->nbr_sigs) + abort (); + if (h->sigs[sig_el].type == NULL) + h->sigs[sig_el].type = ghw_get_base_type (t); + } + return 0; + case ghdl_rtik_subtype_array: + case ghdl_rtik_subtype_array_ptr: + { + int i; + int stride; + int len; + + len = t->sa.nbr_el; + stride = get_nbr_elements (t->sa.base->el); + + for (i = 0; i < len; i += stride) + if (ghw_read_signal (h, &sigs[i], t->sa.base->el) < 0) + return -1; + } + return 0; + case ghdl_rtik_type_record: + { + int i; + int off; + + off = 0; + for (i = 0; i < t->rec.nbr_fields; i++) + { + if (ghw_read_signal (h, &sigs[off], t->rec.el[i].type) < 0) + return -1; + off += get_nbr_elements (t->rec.el[i].type); + } + } + return 0; + default: + fprintf (stderr, "ghw_read_signal: type kind %d unhandled\n", t->kind); + abort (); + } +} + + +int +ghw_read_value (struct ghw_handler *h, + union ghw_val *val, union ghw_type *type) +{ + switch (ghw_get_base_type (type)->kind) + { + case ghdl_rtik_type_b2: + { + int v; + v = fgetc (h->stream); + if (v == EOF) + return -1; + val->b2 = v; + } + break; + case ghdl_rtik_type_e8: + { + int v; + v = fgetc (h->stream); + if (v == EOF) + return -1; + val->e8 = v; + } + break; + case ghdl_rtik_type_i32: + case ghdl_rtik_type_p32: + { + int32_t v; + if (ghw_read_sleb128 (h, &v) < 0) + return -1; + val->i32 = v; + } + break; + case ghdl_rtik_type_f64: + { + double v; + if (ghw_read_f64 (h, &v) < 0) + return -1; + val->f64 = v; + } + break; + case ghdl_rtik_type_p64: + { + int64_t v; + if (ghw_read_lsleb128 (h, &v) < 0) + return -1; + val->i64 = v; + } + break; + default: + fprintf (stderr, "read_value: cannot handle format %d\n", type->kind); + abort (); + } + return 0; +} + +int +ghw_read_hie (struct ghw_handler *h) +{ + char hdr[16]; + int nbr_scopes; + int nbr_sigs; + int i; + struct ghw_hie *blk; + struct ghw_hie **last; + + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + return -1; + + if (hdr[0] != 0 || hdr[1] != 0 || hdr[2] != 0 || hdr[3] != 0) + return -1; + nbr_scopes = ghw_get_i32 (h, &hdr[4]); + /* Number of declared signals (which may be composite). */ + nbr_sigs = ghw_get_i32 (h, &hdr[8]); + /* Number of basic signals. */ + h->nbr_sigs = ghw_get_i32 (h, &hdr[12]); + + blk = (struct ghw_hie *)malloc (sizeof (struct ghw_hie)); + blk->kind = ghw_hie_design; + blk->name = NULL; + blk->parent = NULL; + blk->brother = NULL; + blk->u.blk.child = NULL; + + last = &blk->u.blk.child; + h->hie = blk; + + h->nbr_sigs++; + h->sigs = (struct ghw_sig *) malloc (h->nbr_sigs * sizeof (struct ghw_sig)); + memset (h->sigs, 0, h->nbr_sigs * sizeof (struct ghw_sig)); + + while (1) + { + int t; + struct ghw_hie *el; + unsigned int str; + + t = fgetc (h->stream); + if (t == EOF) + return -1; + if (t == 0) + break; + + if (t == ghw_hie_eos) + { + blk = blk->parent; + if (blk->u.blk.child == NULL) + last = &blk->u.blk.child; + else + { + struct ghw_hie *l = blk->u.blk.child; + while (l->brother != NULL) + l = l->brother; + last = &l->brother; + } + + continue; + } + + el = (struct ghw_hie *) malloc (sizeof (struct ghw_hie)); + el->kind = t; + el->parent = blk; + el->brother = NULL; + + /* Link. */ + *last = el; + last = &el->brother; + + /* Read name. */ + if (ghw_read_uleb128 (h, &str) != 0) + return -1; + el->name = h->str_table[str]; + + switch (t) + { + case ghw_hie_eoh: + case ghw_hie_design: + case ghw_hie_eos: + /* Should not be here. */ + abort (); + case ghw_hie_process: + break; + case ghw_hie_block: + case ghw_hie_generate_if: + case ghw_hie_generate_for: + case ghw_hie_instance: + case ghw_hie_generic: + /* Create a block. */ + el->u.blk.child = NULL; + + if (t == ghw_hie_generate_for) + { + el->u.blk.iter_type = ghw_read_typeid (h); + el->u.blk.iter_value = malloc (sizeof (union ghw_val)); + if (ghw_read_value (h, el->u.blk.iter_value, + el->u.blk.iter_type) < 0) + return -1; + } + blk = el; + last = &el->u.blk.child; + break; + case ghw_hie_signal: + case ghw_hie_port_in: + case ghw_hie_port_out: + case ghw_hie_port_inout: + case ghw_hie_port_buffer: + case ghw_hie_port_linkage: + /* For a signal, read type. */ + { + int nbr_el; + unsigned int *sigs; + + el->u.sig.type = ghw_read_typeid (h); + nbr_el = get_nbr_elements (el->u.sig.type); + sigs = (unsigned int *) malloc + ((nbr_el + 1) * sizeof (unsigned int)); + el->u.sig.sigs = sigs; + /* Last element is NULL. */ + sigs[nbr_el] = 0; + + if (h->flag_verbose > 1) + printf ("signal %s: %d el\n", el->name, nbr_el); + if (ghw_read_signal (h, sigs, el->u.sig.type) < 0) + return -1; +#if 0 + for (i = 0; i < nbr_el; i++) + { + unsigned int sig_el; + + if (ghw_read_uleb128 (h, &sig_el) < 0) + return -1; + sigs[i] = sig_el; + if (sig_el >= h->nbr_sigs) + abort (); + if (h->sigs[sig_el].type == NULL) + { + h->sigs[sig_el].type = ghw_get_base_type (el->u.sig.type); + } + } + sigs[i] = 0; +#endif + } + break; + default: + fprintf (stderr, "ghw_read_hie: unhandled kind %d\n", t); + abort (); + } + } + + /* Allocate values. */ + for (i = 0; i < h->nbr_sigs; i++) + if (h->sigs[i].type != NULL) + h->sigs[i].val = (union ghw_val *) malloc (sizeof (union ghw_val)); + return 0; +} + +const char * +ghw_get_hie_name (struct ghw_hie *h) +{ + switch (h->kind) + { + case ghw_hie_eoh: + return "eoh"; + case ghw_hie_design: + return "design"; + case ghw_hie_block: + return "block"; + case ghw_hie_generate_if: + return "generate-if"; + case ghw_hie_generate_for: + return "generate-for"; + case ghw_hie_instance: + return "instance"; + case ghw_hie_process: + return "process"; + case ghw_hie_generic: + return "generic"; + case ghw_hie_eos: + return "eos"; + case ghw_hie_signal: + return "signal"; + case ghw_hie_port_in: + return "port-in"; + case ghw_hie_port_out: + return "port-out"; + case ghw_hie_port_inout: + return "port-inout"; + case ghw_hie_port_buffer: + return "port-buffer"; + case ghw_hie_port_linkage: + return "port-linkage"; + default: + return "??"; + } +} + +void +ghw_disp_value (union ghw_val *val, union ghw_type *type); + +void +ghw_disp_hie (struct ghw_handler *h, struct ghw_hie *top) +{ + int i; + int indent; + struct ghw_hie *hie; + struct ghw_hie *n; + + hie = top; + indent = 0; + + while (1) + { + for (i = 0; i < indent; i++) + fputc (' ', stdout); + printf ("%s", ghw_get_hie_name (hie)); + + switch (hie->kind) + { + case ghw_hie_design: + case ghw_hie_block: + case ghw_hie_generate_if: + case ghw_hie_generate_for: + case ghw_hie_instance: + case ghw_hie_process: + if (hie->name) + printf (" %s", hie->name); + if (hie->kind == ghw_hie_generate_for) + { + printf ("("); + ghw_disp_value (hie->u.blk.iter_value, hie->u.blk.iter_type); + printf (")"); + } + n = hie->u.blk.child; + if (n == NULL) + n = hie->brother; + else + indent++; + break; + case ghw_hie_generic: + case ghw_hie_eos: + abort (); + case ghw_hie_signal: + case ghw_hie_port_in: + case ghw_hie_port_out: + case ghw_hie_port_inout: + case ghw_hie_port_buffer: + case ghw_hie_port_linkage: + { + unsigned int *sigs; + + printf (" %s: ", hie->name); + ghw_disp_typename (h, hie->u.sig.type); + for (sigs = hie->u.sig.sigs; *sigs != 0; sigs++) + printf (" #%u", *sigs); + n = hie->brother; + } + break; + default: + abort (); + } + printf ("\n"); + + while (n == NULL) + { + if (hie->parent == NULL) + return; + hie = hie->parent; + indent--; + n = hie->brother; + } + hie = n; + } +} + +int +ghw_read_eoh (struct ghw_handler *h) +{ + return 0; +} + + +int +ghw_read_base (struct ghw_handler *h) +{ + unsigned char hdr[4]; + int res; + + while (1) + { + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + return -1; + if (memcmp (hdr, "STR", 4) == 0) + res = ghw_read_str (h); + else if (memcmp (hdr, "HIE", 4) == 0) + res = ghw_read_hie (h); + else if (memcmp (hdr, "TYP", 4) == 0) + res = ghw_read_type (h); + else if (memcmp (hdr, "WKT", 4) == 0) + res = ghw_read_wk_types (h); + else if (memcmp (hdr, "EOH", 4) == 0) + return 0; + else + { + fprintf (stderr, "ghw_read_base: unknown GHW section %c%c%c%c\n", + hdr[0], hdr[1], hdr[2], hdr[3]); + return -1; + } + if (res != 0) + { + fprintf (stderr, "ghw_read_base: error in section %s\n", hdr); + return res; + } + } +} + +int +ghw_read_signal_value (struct ghw_handler *h, struct ghw_sig *s) +{ + return ghw_read_value (h, s->val, s->type); +} + +int +ghw_read_snapshot (struct ghw_handler *h) +{ + char hdr[12]; + int i; + struct ghw_sig *s; + + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + return -1; + + if (hdr[0] != 0 || hdr[1] != 0 || hdr[2] != 0 || hdr[3] != 0) + return -1; + h->snap_time = ghw_get_i64 (h, &hdr[4]); + if (h->flag_verbose > 1) + printf ("Time is %lld fs\n", h->snap_time); + + for (i = 0; i < h->nbr_sigs; i++) + { + s = &h->sigs[i]; + if (s->type != NULL) + { + if (h->flag_verbose > 1) + printf ("read type %d for sig %d\n", s->type->kind, i); + if (ghw_read_signal_value (h, s) < 0) + return -1; + } + } + if (fread (hdr, 4, 1, h->stream) != 1) + return -1; + + if (memcmp (hdr, "ESN", 4)) + return -1; + + return 0; +} + +void ghw_disp_values (struct ghw_handler *h); + +int +ghw_read_cycle_start (struct ghw_handler *h) +{ + char hdr[8]; + + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + return -1; + + h->snap_time = ghw_get_i64 (h, hdr); + return 0; +} + +int +ghw_read_cycle_cont (struct ghw_handler *h, int *list) +{ + int i; + int *list_p; + + i = 0; + list_p = list; + while (1) + { + int32_t d; + + /* Read delta to next signal. */ + if (ghw_read_sleb128 (h, &d) < 0) + return -1; + if (d == 0) + { + /* Last signal reached. */ + break; + } + + /* Find next signal. */ + while (d > 0) + { + i++; + if (h->sigs[i].type != NULL) + d--; + } + + if (ghw_read_signal_value (h, &h->sigs[i]) < 0) + return -1; + if (list_p) + *list_p++ = i; + } + + if (list_p) + *list_p = 0; + return 0; +} + +int +ghw_read_cycle_next (struct ghw_handler *h) +{ + int64_t d_time; + + if (ghw_read_lsleb128 (h, &d_time) < 0) + return -1; + if (d_time == -1) + return 0; + h->snap_time += d_time; + return 1; +} + + +int +ghw_read_cycle_end (struct ghw_handler *h) +{ + char hdr[4]; + + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + return -1; + if (memcmp (hdr, "ECY", 4)) + return -1; + + return 0; +} + +void +ghw_disp_value (union ghw_val *val, union ghw_type *type) +{ + switch (ghw_get_base_type (type)->kind) + { + case ghdl_rtik_type_b2: + printf ("%s (%d)", type->en.lits[val->b2], val->b2); + break; + case ghdl_rtik_type_e8: + printf ("%s (%d)", type->en.lits[val->e8], val->e8); + break; + case ghdl_rtik_type_i32: + printf ("%d", val->i32); + break; + case ghdl_rtik_type_p64: + printf ("%lld", val->i64); + break; + case ghdl_rtik_type_f64: + printf ("%g", val->f64); + break; + default: + fprintf (stderr, "ghw_disp_value: cannot handle type %d\n", + type->kind); + abort (); + } +} + +/* Put the ASCII representation of VAL into BUF, whose size if LEN. + A NUL is always written to BUF. +*/ +void +ghw_get_value (char *buf, int len, union ghw_val *val, union ghw_type *type) +{ + switch (ghw_get_base_type (type)->kind) + { + case ghdl_rtik_type_b2: + if (val->b2 <= 1) + { + strncpy (buf, type->en.lits[val->b2], len - 1); + buf[len - 1] = 0; + } + else + { + snprintf (buf, len, "?%d", val->b2); + } + break; + case ghdl_rtik_type_e8: + if (val->b2 <= type->en.nbr) + { + strncpy (buf, type->en.lits[val->e8], len - 1); + buf[len - 1] = 0; + } + else + { + snprintf (buf, len, "?%d", val->e8); + } + break; + case ghdl_rtik_type_i32: + snprintf (buf, len, "%d", val->i32); + break; + case ghdl_rtik_type_p64: + snprintf (buf, len, "%lld", val->i64); + break; + case ghdl_rtik_type_f64: + snprintf (buf, len, "%g", val->f64); + break; + default: + snprintf (buf, len, "?bad type %d?", type->kind); + } +} + +void +ghw_disp_values (struct ghw_handler *h) +{ + int i; + + for (i = 0; i < h->nbr_sigs; i++) + { + struct ghw_sig *s = &h->sigs[i]; + if (s->type != NULL) + { + printf ("#%d: ", i); + ghw_disp_value (s->val, s->type); + printf ("\n"); + } + } +} + +int +ghw_read_directory (struct ghw_handler *h) +{ + unsigned char hdr[8]; + int nbr_entries; + int i; + + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + return -1; + + nbr_entries = ghw_get_i32 (h, &hdr[4]); + + if (h->flag_verbose) + printf ("Directory (%d entries):\n", nbr_entries); + + for (i = 0; i < nbr_entries; i++) + { + unsigned char ent[8]; + int pos; + + if (fread (ent, sizeof (ent), 1, h->stream) != 1) + return -1; + + pos = ghw_get_i32 (h, &ent[4]); + if (h->flag_verbose) + printf (" %s at %d\n", ent, pos); + } + + if (fread (hdr, 4, 1, h->stream) != 1) + return -1; + if (memcmp (hdr, "EOD", 4)) + return -1; + return 0; +} + +int +ghw_read_tailer (struct ghw_handler *h) +{ + unsigned char hdr[8]; + int pos; + + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + return -1; + + pos = ghw_get_i32 (h, &hdr[4]); + + if (h->flag_verbose) + printf ("Tailer: directory at %d\n", pos); + return 0; +} + +enum ghw_res +ghw_read_sm_hdr (struct ghw_handler *h, int *list) +{ + unsigned char hdr[4]; + int res; + + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + { + if (feof (h->stream)) + return ghw_res_eof; + else + return ghw_res_error; + } + if (memcmp (hdr, "SNP", 4) == 0) + { + res = ghw_read_snapshot (h); + if (res < 0) + return res; + return ghw_res_snapshot; + } + else if (memcmp (hdr, "CYC", 4) == 0) + { + res = ghw_read_cycle_start (h); + if (res < 0) + return res; + res = ghw_read_cycle_cont (h, list); + if (res < 0) + return res; + + return ghw_res_cycle; + } + else if (memcmp (hdr, "DIR", 4) == 0) + { + res = ghw_read_directory (h); + } + else if (memcmp (hdr, "TAI", 4) == 0) + { + res = ghw_read_tailer (h); + } + else + { + fprintf (stderr, "unknown GHW section %c%c%c%c\n", + hdr[0], hdr[1], hdr[2], hdr[3]); + return -1; + } + if (res != 0) + return res; + return ghw_res_other; +} + +int +ghw_read_sm (struct ghw_handler *h, enum ghw_sm_type *sm) +{ + int res; + + while (1) + { + /* printf ("sm: state = %d\n", *sm); */ + switch (*sm) + { + case ghw_sm_init: + case ghw_sm_sect: + res = ghw_read_sm_hdr (h, NULL); + switch (res) + { + case ghw_res_other: + break; + case ghw_res_snapshot: + *sm = ghw_sm_sect; + return res; + case ghw_res_cycle: + *sm = ghw_sm_cycle; + return res; + default: + return res; + } + break; + case ghw_sm_cycle: + if (0) + printf ("Time is %lld fs\n", h->snap_time); + if (0) + ghw_disp_values (h); + + res = ghw_read_cycle_next (h); + if (res < 0) + return res; + if (res == 1) + { + res = ghw_read_cycle_cont (h, NULL); + if (res < 0) + return res; + return ghw_res_cycle; + } + res = ghw_read_cycle_end (h); + if (res < 0) + return res; + *sm = ghw_sm_sect; + break; + } + } +} + +int +ghw_read_cycle (struct ghw_handler *h) +{ + int res; + + res = ghw_read_cycle_start (h); + if (res < 0) + return res; + while (1) + { + res = ghw_read_cycle_cont (h, NULL); + if (res < 0) + return res; + + if (0) + printf ("Time is %lld fs\n", h->snap_time); + if (0) + ghw_disp_values (h); + + + res = ghw_read_cycle_next (h); + if (res < 0) + return res; + if (res == 0) + break; + } + res = ghw_read_cycle_end (h); + return res; +} + +int +ghw_read_dump (struct ghw_handler *h) +{ + unsigned char hdr[4]; + int res; + + while (1) + { + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + { + if (feof (h->stream)) + return 0; + else + return -1; + } + if (memcmp (hdr, "SNP", 4) == 0) + { + res = ghw_read_snapshot (h); + if (0 && res >= 0) + ghw_disp_values (h); + } + else if (memcmp (hdr, "CYC", 4) == 0) + { + res = ghw_read_cycle (h); + } + else if (memcmp (hdr, "DIR", 4) == 0) + { + res = ghw_read_directory (h); + } + else if (memcmp (hdr, "TAI", 4) == 0) + { + res = ghw_read_tailer (h); + } + else + { + fprintf (stderr, "unknown GHW section %c%c%c%c\n", + hdr[0], hdr[1], hdr[2], hdr[3]); + return -1; + } + if (res != 0) + return res; + } +} + +struct ghw_section ghw_sections[] = { + { "\0\0\0", NULL }, + { "STR", ghw_read_str }, + { "HIE", ghw_read_hie }, + { "TYP", ghw_read_type }, + { "WKT", ghw_read_wk_types }, + { "EOH", ghw_read_eoh }, + { "SNP", ghw_read_snapshot }, + { "CYC", ghw_read_cycle }, + { "DIR", ghw_read_directory }, + { "TAI", ghw_read_tailer } +}; + +int +ghw_read_section (struct ghw_handler *h) +{ + unsigned char hdr[4]; + int i; + + if (fread (hdr, sizeof (hdr), 1, h->stream) != 1) + { + if (feof (h->stream)) + return -2; + else + return -1; + } + + for (i = 1; i < sizeof (ghw_sections) / sizeof (*ghw_sections); i++) + if (memcmp (hdr, ghw_sections[i].name, 4) == 0) + return i; + + fprintf (stderr, "ghw_read_section: unknown GHW section %c%c%c%c\n", + hdr[0], hdr[1], hdr[2], hdr[3]); + return 0; +} + +void +ghw_close (struct ghw_handler *h) +{ + if (h->stream) + { + fclose (h->stream); + h->stream = NULL; + } +} + +const char * +ghw_get_dir (int is_downto) +{ + return is_downto ? "downto" : "to"; +} + +void +ghw_disp_range (union ghw_range *rng) +{ + switch (rng->kind) + { + case ghdl_rtik_type_i32: + case ghdl_rtik_type_p32: + printf ("%d %s %d", + rng->i32.left, ghw_get_dir (rng->i32.dir), rng->i32.right); + break; + case ghdl_rtik_type_i64: + case ghdl_rtik_type_p64: + printf ("%lld %s %lld", + rng->i64.left, ghw_get_dir (rng->i64.dir), rng->i64.right); + break; + case ghdl_rtik_type_f64: + printf ("%g %s %g", + rng->f64.left, ghw_get_dir (rng->f64.dir), rng->f64.right); + break; + default: + printf ("?(%d)", rng->kind); + } +} + +void +ghw_disp_type (struct ghw_handler *h, union ghw_type *t) +{ + switch (t->kind) + { + case ghdl_rtik_type_b2: + case ghdl_rtik_type_e8: + { + struct ghw_type_enum *e = &t->en; + int i; + + printf ("type %s is (", e->name); + for (i = 0; i < e->nbr; i++) + { + if (i != 0) + printf (", "); + printf ("%s", e->lits[i]); + } + printf (");"); + if (e->wkt != ghw_wkt_unknown) + printf (" -- WKT:%d", e->wkt); + printf ("\n"); + } + break; + case ghdl_rtik_type_i32: + case ghdl_rtik_type_f64: + { + struct ghw_type_scalar *s = &t->sc; + printf ("type %s is range <>;\n", s->name); + } + break; + case ghdl_rtik_type_p32: + case ghdl_rtik_type_p64: + { + int i; + + struct ghw_type_physical *p = &t->ph; + printf ("type %s is range <> units\n", p->name); + for (i = 0; i < p->nbr_units; i++) + { + struct ghw_unit *u = &p->units[i]; + printf (" %s = %lld %s;\n", u->name, u->val, p->units[0].name); + } + printf ("end units\n"); + } + break; + case ghdl_rtik_subtype_scalar: + { + struct ghw_subtype_scalar *s = &t->ss; + printf ("subtype %s is ", s->name); + ghw_disp_typename (h, s->base); + printf (" range "); + ghw_disp_range (s->rng); + printf (";\n"); + } + break; + case ghdl_rtik_type_array: + { + struct ghw_type_array *a = &t->ar; + int i; + + printf ("type %s is array (", a->name); + for (i = 0; i < a->nbr_dim; i++) + { + if (i != 0) + printf (", "); + ghw_disp_typename (h, a->dims[i]); + printf (" range <>"); + } + printf (") of "); + ghw_disp_typename (h, a->el); + printf (";\n"); + } + break; + case ghdl_rtik_subtype_array: + case ghdl_rtik_subtype_array_ptr: + { + struct ghw_subtype_array *a = &t->sa; + int i; + + printf ("subtype %s is ", a->name); + ghw_disp_typename (h, (union ghw_type *)a->base); + printf (" ("); + for (i = 0; i < a->base->nbr_dim; i++) + { + if (i != 0) + printf (", "); + ghw_disp_range (a->rngs[i]); + } + printf (");\n"); + } + break; + case ghdl_rtik_type_record: + { + struct ghw_type_record *r = &t->rec; + int i; + + printf ("type %s is record\n", r->name); + for (i = 0; i < r->nbr_fields; i++) + { + printf (" %s: ", r->el[i].name); + ghw_disp_typename (h, r->el[i].type); + printf ("\n"); + } + printf ("end record;\n"); + } + break; + default: + printf ("ghw_disp_type: unhandled type kind %d\n", t->kind); + } +} + +void +ghw_disp_types (struct ghw_handler *h) +{ + int i; + + for (i = 0; i < h->nbr_types; i++) + ghw_disp_type (h, h->types[i]); +} |