Head

GCC Code Coverage Report

Directory:	../src/		Exec	Total	Coverage
File:	/home/joels/Current/lispbm/src/symrepr.c	Lines:	97	124	78.2 %
Date:	2025-04-09 11:39:30	Branches:	42	63	66.7 %


/*
    Copyright 2018, 2021, 2022, 2024, 2025 Joel Svensson  svenssonjoel@yahoo.se

    This program 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 3 of the License, or
    (at your option) any later version.

    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <inttypes.h>


#include <lbm_memory.h>
#include <heap.h>
#include "symrepr.h"
#include "extensions.h"
#include "lbm_utils.h"
#include "lbm_image.h"

#define NUM_SPECIAL_SYMBOLS (sizeof(special_symbols) / sizeof(special_sym))
#define NAME   0
#define ID     1
#define NEXT   2

typedef struct {
  const char *name;
  const lbm_uint id;
} special_sym;

special_sym const special_symbols[] =  {
  {"nil"        , SYM_NIL},
  {"quote"      , SYM_QUOTE},
  {"t"          , SYM_TRUE},
  {"if"         , SYM_IF},
  {"cond"       , SYM_COND},
  {"lambda"     , SYM_LAMBDA},
  {"closure"    , SYM_CLOSURE},
  {"let"        , SYM_LET},
  {"define"     , SYM_DEFINE},
  {"progn"      , SYM_PROGN},
  {"read"       , SYM_READ},
  {"read-program" , SYM_READ_PROGRAM},
  {"read-eval-program", SYM_READ_AND_EVAL_PROGRAM},
  {"match"        , SYM_MATCH},
  {"_"            , SYM_DONTCARE},
  {"send"         , SYM_SEND},
  {"recv"         , SYM_RECEIVE},
  {"recv-to"      , SYM_RECEIVE_TIMEOUT},
  {"macro"        , SYM_MACRO},
  {"call-cc"      , SYM_CALLCC},
  {"continuation" , SYM_CONT},
  {"var"          , SYM_PROGN_VAR},
  {"timeout"      , SYM_TIMEOUT},

  {"set"          , SYM_SETVAR},
  {"setq"         , SYM_SETQ},
  {"move-to-flash", SYM_MOVE_TO_FLASH},
  {"exit-ok"      , SYM_EXIT_OK},
  {"exit-error"   , SYM_EXIT_ERROR},
  {"map"          , SYM_MAP},
  {"reverse"      , SYM_REVERSE},
  {"flatten"      , SYM_FLATTEN},
  {"unflatten"    , SYM_UNFLATTEN},
  {"kill"         , SYM_KILL},
  {"sleep"        , SYM_SLEEP},
  {"merge"        , SYM_MERGE},
  {"sort"         , SYM_SORT},
  {"gc"           , SYM_PERFORM_GC},
  {"loop"         , SYM_LOOP},
  {"trap"         , SYM_TRAP},
  {"rest-args"    , SYM_REST_ARGS},
  {"rotate"       , SYM_ROTATE},
  {"call-cc-unsafe", SYM_CALL_CC_UNSAFE},

  // pattern matching
  {"?"          , SYM_MATCH_ANY},

  // Error symbols with parsable names
  {"no_match"           , SYM_NO_MATCH},
  {"read_error"         , SYM_RERROR},
  {"type_error"         , SYM_TERROR},
  {"eval_error"         , SYM_EERROR},
  {"out_of_memory"      , SYM_MERROR},
  {"fatal_error"        , SYM_FATAL_ERROR},
  {"out_of_stack"       , SYM_STACK_ERROR},
  {"division_by_zero"   , SYM_DIVZERO},
  {"variable_not_bound" , SYM_NOT_FOUND},
  {"flash_full"         , SYM_ERROR_FLASH_HEAP_FULL},

  // Special symbols with unparsable names
  {"$barray"         , SYM_ARRAY_TYPE},
  {"$raw_i"          , SYM_RAW_I_TYPE},
  {"$raw_u"          , SYM_RAW_U_TYPE},
  {"$raw_f"          , SYM_RAW_F_TYPE},
  {"$ind_i"          , SYM_IND_I_TYPE},
  {"$ind_u"          , SYM_IND_U_TYPE},
  {"$ind_f"          , SYM_IND_F_TYPE},
  {"$channel"        , SYM_CHANNEL_TYPE},
  {"$recovered"      , SYM_RECOVERED},
  {"$placeholder"    , SYM_PLACEHOLDER},
  {"$custom"         , SYM_CUSTOM_TYPE},
  {"$array"          , SYM_LISPARRAY_TYPE},
  {"$nonsense"       , SYM_NONSENSE},
  {"$dm-array"       , SYM_DEFRAG_ARRAY_TYPE},
  {"$dm"             , SYM_DEFRAG_MEM_TYPE},

  // tokenizer symbols with unparsable names
  {"[openpar]"        , SYM_OPENPAR},
  {"[closepar]"       , SYM_CLOSEPAR},
  {"[backquote]"      , SYM_BACKQUOTE},
  {"[comma]"          , SYM_COMMA},
  {"[commaat]"        , SYM_COMMAAT},
  {"[dot]"            , SYM_DOT},
  {"[done]"           , SYM_TOKENIZER_DONE},
  {"[quote_it]"       , SYM_QUOTE_IT},
  {"[colon]"          , SYM_COLON},
  {"[wait]"           , SYM_TOKENIZER_WAIT},
  {"[openbrack]"      , SYM_OPENBRACK},
  {"[closebrack]"     , SYM_CLOSEBRACK},
  {"[rerror]"         , SYM_TOKENIZER_RERROR},
  {"[appcont]"        , SYM_APP_CONT},
  {"[openarr]"        , SYM_OPENARRAY},
  {"[closearr]"       , SYM_CLOSEARRAY},

  // special symbols with parseable names
  {"type-list"        , SYM_TYPE_LIST},
  {"type-i"           , SYM_TYPE_I},
  {"type-u"           , SYM_TYPE_U},
  {"type-float"       , SYM_TYPE_FLOAT},
  {"type-i32"         , SYM_TYPE_I32},
  {"type-u32"         , SYM_TYPE_U32},
  {"type-double"      , SYM_TYPE_DOUBLE},
  {"type-i64"         , SYM_TYPE_I64},
  {"type-u64"         , SYM_TYPE_U64},
  {"type-array"       , SYM_TYPE_ARRAY},
  {"type-symbol"      , SYM_TYPE_SYMBOL},
  {"type-char"        , SYM_TYPE_CHAR},
  {"type-byte"        , SYM_TYPE_BYTE},
  {"type-channel"     , SYM_TYPE_CHANNEL},
  {"type-lisparray"   , SYM_TYPE_LISPARRAY},
  {"type-dm"          , SYM_TYPE_DEFRAG_MEM},
  {"type-custom"      , SYM_TYPE_CUSTOM},

  // Fundamental operations
  {"+"                , SYM_ADD},
  {"-"                , SYM_SUB},
  {"*"                , SYM_MUL},
  {"/"                , SYM_DIV},
  {"//"               , SYM_INT_DIV},
  {"mod"              , SYM_MOD},
  {"="                , SYM_NUMEQ},
  {"!="               , SYM_NUM_NOT_EQ},
  {"<"                , SYM_LT},
  {">"                , SYM_GT},
  {"<="               , SYM_LEQ},
  {">="               , SYM_GEQ},
  {"eval"             , SYM_EVAL},
  {"eval-program"     , SYM_EVAL_PROGRAM},
  {"and"              , SYM_AND},
  {"or"               , SYM_OR},
  {"not"              , SYM_NOT},
  {"yield"            , SYM_YIELD},
  {"wait"             , SYM_WAIT},
  {"spawn"            , SYM_SPAWN},
  {"atomic"           , SYM_ATOMIC},
  {"self"             , SYM_SELF},
  {"spawn-trap"       , SYM_SPAWN_TRAP},
  {"set-mailbox-size" , SYM_SET_MAILBOX_SIZE},
  {"eq"               , SYM_EQ},
  {"not-eq"           , SYM_NOT_EQ},
  {"car"              , SYM_CAR},
  {"cdr"              , SYM_CDR},
  {"cons"             , SYM_CONS},
  {"list"             , SYM_LIST},
  {"append"           , SYM_APPEND},
  {"undefine"         , SYM_UNDEFINE},
  {"bufcreate"        , SYM_BYTEARRAY_CREATE},
  {"type-of"          , SYM_TYPE_OF},
  {"sym2str"          , SYM_SYMBOL_TO_STRING},
  {"str2sym"          , SYM_STRING_TO_SYMBOL},
  {"sym2u"            , SYM_SYMBOL_TO_UINT},
  {"u2sym"            , SYM_UINT_TO_SYMBOL},
  {"setcar"           , SYM_SET_CAR},
  {"setcdr"           , SYM_SET_CDR},
  {"setix"            , SYM_SET_IX},
  {"length"           , SYM_LIST_LENGTH},
  {"range"            , SYM_RANGE},

  {"assoc"          , SYM_ASSOC}, // lookup an association
  {"cossa"          , SYM_COSSA}, // lookup an association "backwards"
  {"acons"          , SYM_ACONS}, // Add to alist
  {"setassoc"       , SYM_SET_ASSOC}, // Change association

  {"shl"            , SYM_SHL},
  {"shr"            , SYM_SHR},
  {"bitwise-and"    , SYM_BITWISE_AND},
  {"bitwise-or"     , SYM_BITWISE_OR},
  {"bitwise-xor"    , SYM_BITWISE_XOR},
  {"bitwise-not"    , SYM_BITWISE_NOT},

  {"custom-destruct", SYM_CUSTOM_DESTRUCT},

  {"to-i"           , SYM_TO_I},
  {"to-i32"         , SYM_TO_I32},
  {"to-u"           , SYM_TO_U},
  {"to-u32"         , SYM_TO_U32},
  {"to-float"       , SYM_TO_FLOAT},
  {"to-i64"         , SYM_TO_I64},
  {"to-u64"         , SYM_TO_U64},
  {"to-double"      , SYM_TO_DOUBLE},
  {"to-byte"        , SYM_TO_BYTE},

  {"event-register-handler", SYM_REG_EVENT_HANDLER},
  {"take"           , SYM_TAKE},
  {"drop"           , SYM_DROP},
  {"mkarray"        , SYM_MKARRAY},

  {"dm-create"      , SYM_DM_CREATE},
  {"dm-alloc"       , SYM_DM_ALLOC},

  {"list?"          , SYM_IS_LIST},
  {"number?"        , SYM_IS_NUMBER},
  {"string?"        , SYM_IS_STRING},
  {"constant?"      , SYM_IS_CONSTANT},

  // fast access in list
  {"ix"             , SYM_IX},

  {"identity"       , SYM_IDENTITY},
  {"array"          , SYM_ARRAY},

  // aliases
  {"first"          , SYM_CAR},
  {"rest"           , SYM_CDR},
  {"fn"             , SYM_LAMBDA},
  {"def"            , SYM_DEFINE},
  {"true"           , SYM_TRUE},
  {"false"          , SYM_NIL},
  {"setvar"         , SYM_SETVAR},
  {"type-f32"       , SYM_TYPE_FLOAT},
  {"type-f64"       , SYM_TYPE_DOUBLE},
  {"array-create"   , SYM_BYTEARRAY_CREATE},

};

static lbm_uint *symlist = NULL;
static lbm_uint next_symbol_id = RUNTIME_SYMBOLS_START;
static lbm_uint symbol_table_size_list = 0;
static lbm_uint symbol_table_size_list_flash = 0;
static lbm_uint symbol_table_size_strings = 0;
static lbm_uint symbol_table_size_strings_flash = 0;

// When rebooting an image...
void lbm_symrepr_set_symlist(lbm_uint *ls) {
  symlist = ls;
}

int lbm_symrepr_init(void) {
  symlist = NULL;
  next_symbol_id = RUNTIME_SYMBOLS_START;
  symbol_table_size_list = 0;
  symbol_table_size_list_flash = 0;
  symbol_table_size_strings = 0;
  symbol_table_size_strings_flash = 0;
  return 1;
}

void lbm_symrepr_name_iterator(symrepr_name_iterator_fun f) {

  lbm_uint *curr = symlist;
  while (curr) {
    f((const char *)curr[NAME]);
    curr = (lbm_uint *)curr[NEXT];
  }
}

const char *lookup_symrepr_name_memory(lbm_uint id) {

  lbm_uint *curr = symlist;
  while (curr) {
    if (id == curr[ID]) {
      return (const char *)curr[NAME];
    }
    curr = (lbm_uint*)curr[NEXT];
  }
  return NULL;
}

// Lookup symbol name given a symbol id
const char *lbm_get_name_by_symbol(lbm_uint id) {
  lbm_uint sym_kind = SYMBOL_KIND(id);
  switch (sym_kind) {
  case SYMBOL_KIND_SPECIAL:  /* fall through */
  case SYMBOL_KIND_FUNDAMENTAL:
  case SYMBOL_KIND_APPFUN:
    for (unsigned int i = 0; i < NUM_SPECIAL_SYMBOLS; i ++) {
      if (id == special_symbols[i].id) {
        return (special_symbols[i].name);
      }
    }
    return NULL;
    break;
  case SYMBOL_KIND_EXTENSION: {
    lbm_uint ext_id = id - EXTENSION_SYMBOLS_START;
    if (ext_id < lbm_get_max_extensions()) {
      return extension_table[ext_id].name;
    }
    return NULL;
  } break;
  default:
    return lookup_symrepr_name_memory(id);
  }
}

lbm_uint *lbm_get_symbol_list_entry_by_name(char *name) {
  lbm_uint *curr = symlist;
  while (curr) {
    char *str = (char*)curr[NAME];
    if (str_eq(name, str)) {
      return (lbm_uint *)curr;
    }
    curr = (lbm_uint*)curr[NEXT];
  }
  return NULL;
}

// Lookup symbol id given symbol name
int lbm_get_symbol_by_name(char *name, lbm_uint* id) {

  // loop through special symbols
  for (unsigned int i = 0; i < NUM_SPECIAL_SYMBOLS; i ++) {
    if (str_eq(name, (char *)special_symbols[i].name)) {
      *id = special_symbols[i].id;
      return 1;
    }
   }

  // loop through extensions
  for (unsigned int i = 0; i < lbm_get_max_extensions(); i ++) {
    if (extension_table[i].name && str_eq(name, extension_table[i].name)) {
      *id = EXTENSION_SYMBOLS_START + i;
      return 1;
    }
  }

  lbm_uint *curr = symlist;
  while (curr) {
    char *str = (char*)curr[NAME];
    if (str_eq(name, str)) {
      *id = curr[ID];
      return 1;
    }
    curr = (lbm_uint*)curr[NEXT];
  }
  return 0;
}

extern lbm_flash_status lbm_write_const_array_padded(uint8_t *data, lbm_uint n, lbm_uint *res);

bool store_symbol_name_flash(char *name, lbm_uint *res) {
  size_t n = strlen(name) + 1;
  if (n == 1) return 0; // failure if empty symbol

  lbm_uint alloc_size;
  if (n % sizeof(lbm_uint) == 0) {
    alloc_size = n/(sizeof(lbm_uint));
  } else {
    alloc_size = (n/(sizeof(lbm_uint))) + 1;
  }

  lbm_uint symbol_addr = 0;
  lbm_flash_status s = lbm_write_const_array_padded((uint8_t*)name, n, &symbol_addr);
  if (s != LBM_FLASH_WRITE_OK || symbol_addr == 0) {
    return false;
  }
  symbol_table_size_strings_flash += alloc_size;
  *res = symbol_addr;
  return true;
}

// Symbol table
// non-const name copied into symbol-table-entry:
// Entry
//   |
//   [name-ptr | symbol-id | next-ptr | name n-bytes]
//       |                             /
//        ------------points here -----
//
// const name referenced by symbol-table-entry:
// Entry
//   |
//   [name-ptr | symbol-id | next-ptr]
//       |
//        [name n-bytes]
//

int lbm_add_symbol_base(char *name, lbm_uint *id) {
  lbm_uint symbol_name_storage;
  if (!store_symbol_name_flash(name, &symbol_name_storage)) return 0;
  lbm_uint *new_symlist = lbm_image_add_symbol((char*)symbol_name_storage, next_symbol_id, (lbm_uint)symlist);
  if (!new_symlist) {
    return 0;
  }
  symlist = new_symlist;
  *id = next_symbol_id ++;
  return 1;
}

int lbm_add_symbol(char *name, lbm_uint* id) {
  lbm_uint sym_id;
  if (!lbm_get_symbol_by_name(name, &sym_id)) {
    return lbm_add_symbol_base(name, id);
  } else {
    *id = sym_id;
    return 1;
  }
  return 0;
}

// on Linux, win, etc a const string may not be at
// the same address between runs.
int lbm_add_symbol_const_base(char *name, lbm_uint* id, bool link) {
  lbm_uint symbol_name_storage = (lbm_uint)name;
#ifdef __PIC__
  if (!store_symbol_name_flash(name, &symbol_name_storage)) return 0;
#endif
  lbm_uint *new_symlist;
  if (link) {
    new_symlist = lbm_image_add_and_link_symbol((char*)symbol_name_storage, next_symbol_id, (lbm_uint)symlist, id);
  } else {
    new_symlist = lbm_image_add_symbol((char*)symbol_name_storage, next_symbol_id, (lbm_uint)symlist);
  }
  if (new_symlist) {
    symlist = new_symlist;
    *id = next_symbol_id ++;
    return 1;
  }
  return 0;
}

int lbm_add_symbol_const(char *name, lbm_uint* id) {
  lbm_uint sym_id;
  if (!lbm_get_symbol_by_name(name, &sym_id)) {
    return lbm_add_symbol_const_base(name, id, true);
  } else {
    *id = sym_id;
    return 1;
  }
  return 0;
}

int lbm_str_to_symbol(char *name, lbm_uint *sym_id) {
  if (lbm_get_symbol_by_name(name, sym_id))
    return 1;
  else if (lbm_add_symbol(name, sym_id))
    return 1;
  return 0;
}

lbm_uint lbm_get_symbol_table_size(void) {
  return (symbol_table_size_list +symbol_table_size_strings);
}

lbm_uint lbm_get_symbol_table_size_flash(void) {
  return (symbol_table_size_list_flash +
          symbol_table_size_strings_flash) * sizeof(lbm_uint);
}

lbm_uint lbm_get_symbol_table_size_names(void) {
  return symbol_table_size_strings; // Bytes already
}

lbm_uint lbm_get_symbol_table_size_names_flash(void) {
  return symbol_table_size_strings_flash * sizeof(lbm_uint);
}

bool lbm_symbol_in_flash(char *str) {
  return !lbm_memory_ptr_inside((lbm_uint*)str);
}

bool lbm_symbol_list_entry_in_flash(char *str) {
  lbm_uint *entry = lbm_get_symbol_list_entry_by_name(str);
  return (entry == NULL || !lbm_memory_ptr_inside(entry));
}


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			/*
2			Copyright 2018, 2021, 2022, 2024, 2025 Joel Svensson svenssonjoel@yahoo.se
3
4			This program is free software: you can redistribute it and/or modify
5			it under the terms of the GNU General Public License as published by
6			the Free Software Foundation, either version 3 of the License, or
7			(at your option) any later version.
8
9			This program is distributed in the hope that it will be useful,
10			but WITHOUT ANY WARRANTY; without even the implied warranty of
11			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12			GNU General Public License for more details.
13
14			You should have received a copy of the GNU General Public License
15			along with this program. If not, see <http://www.gnu.org/licenses/>.
16			*/
17
18			#include <stdint.h>
19			#include <stdio.h>
20			#include <string.h>
21			#include <stdlib.h>
22			#include <inttypes.h>
23
24
25			#include <lbm_memory.h>
26			#include <heap.h>
27			#include "symrepr.h"
28			#include "extensions.h"
29			#include "lbm_utils.h"
30			#include "lbm_image.h"
31
32			#define NUM_SPECIAL_SYMBOLS (sizeof(special_symbols) / sizeof(special_sym))
33			#define NAME 0
34			#define ID 1
35			#define NEXT 2
36
37			typedef struct {
38			const char *name;
39			const lbm_uint id;
40			} special_sym;
41
42			special_sym const special_symbols[] = {
43			{"nil" , SYM_NIL},
44			{"quote" , SYM_QUOTE},
45			{"t" , SYM_TRUE},
46			{"if" , SYM_IF},
47			{"cond" , SYM_COND},
48			{"lambda" , SYM_LAMBDA},
49			{"closure" , SYM_CLOSURE},
50			{"let" , SYM_LET},
51			{"define" , SYM_DEFINE},
52			{"progn" , SYM_PROGN},
53			{"read" , SYM_READ},
54			{"read-program" , SYM_READ_PROGRAM},
55			{"read-eval-program", SYM_READ_AND_EVAL_PROGRAM},
56			{"match" , SYM_MATCH},
57			{"_" , SYM_DONTCARE},
58			{"send" , SYM_SEND},
59			{"recv" , SYM_RECEIVE},
60			{"recv-to" , SYM_RECEIVE_TIMEOUT},
61			{"macro" , SYM_MACRO},
62			{"call-cc" , SYM_CALLCC},
63			{"continuation" , SYM_CONT},
64			{"var" , SYM_PROGN_VAR},
65			{"timeout" , SYM_TIMEOUT},
66
67			{"set" , SYM_SETVAR},
68			{"setq" , SYM_SETQ},
69			{"move-to-flash", SYM_MOVE_TO_FLASH},
70			{"exit-ok" , SYM_EXIT_OK},
71			{"exit-error" , SYM_EXIT_ERROR},
72			{"map" , SYM_MAP},
73			{"reverse" , SYM_REVERSE},
74			{"flatten" , SYM_FLATTEN},
75			{"unflatten" , SYM_UNFLATTEN},
76			{"kill" , SYM_KILL},
77			{"sleep" , SYM_SLEEP},
78			{"merge" , SYM_MERGE},
79			{"sort" , SYM_SORT},
80			{"gc" , SYM_PERFORM_GC},
81			{"loop" , SYM_LOOP},
82			{"trap" , SYM_TRAP},
83			{"rest-args" , SYM_REST_ARGS},
84			{"rotate" , SYM_ROTATE},
85			{"call-cc-unsafe", SYM_CALL_CC_UNSAFE},
86
87			// pattern matching
88			{"?" , SYM_MATCH_ANY},
89
90			// Error symbols with parsable names
91			{"no_match" , SYM_NO_MATCH},
92			{"read_error" , SYM_RERROR},
93			{"type_error" , SYM_TERROR},
94			{"eval_error" , SYM_EERROR},
95			{"out_of_memory" , SYM_MERROR},
96			{"fatal_error" , SYM_FATAL_ERROR},
97			{"out_of_stack" , SYM_STACK_ERROR},
98			{"division_by_zero" , SYM_DIVZERO},
99			{"variable_not_bound" , SYM_NOT_FOUND},
100			{"flash_full" , SYM_ERROR_FLASH_HEAP_FULL},
101
102			// Special symbols with unparsable names
103			{"$barray" , SYM_ARRAY_TYPE},
104			{"$raw_i" , SYM_RAW_I_TYPE},
105			{"$raw_u" , SYM_RAW_U_TYPE},
106			{"$raw_f" , SYM_RAW_F_TYPE},
107			{"$ind_i" , SYM_IND_I_TYPE},
108			{"$ind_u" , SYM_IND_U_TYPE},
109			{"$ind_f" , SYM_IND_F_TYPE},
110			{"$channel" , SYM_CHANNEL_TYPE},
111			{"$recovered" , SYM_RECOVERED},
112			{"$placeholder" , SYM_PLACEHOLDER},
113			{"$custom" , SYM_CUSTOM_TYPE},
114			{"$array" , SYM_LISPARRAY_TYPE},
115			{"$nonsense" , SYM_NONSENSE},
116			{"$dm-array" , SYM_DEFRAG_ARRAY_TYPE},
117			{"$dm" , SYM_DEFRAG_MEM_TYPE},
118
119			// tokenizer symbols with unparsable names
120			{"[openpar]" , SYM_OPENPAR},
121			{"[closepar]" , SYM_CLOSEPAR},
122			{"[backquote]" , SYM_BACKQUOTE},
123			{"[comma]" , SYM_COMMA},
124			{"[commaat]" , SYM_COMMAAT},
125			{"[dot]" , SYM_DOT},
126			{"[done]" , SYM_TOKENIZER_DONE},
127			{"[quote_it]" , SYM_QUOTE_IT},
128			{"[colon]" , SYM_COLON},
129			{"[wait]" , SYM_TOKENIZER_WAIT},
130			{"[openbrack]" , SYM_OPENBRACK},
131			{"[closebrack]" , SYM_CLOSEBRACK},
132			{"[rerror]" , SYM_TOKENIZER_RERROR},
133			{"[appcont]" , SYM_APP_CONT},
134			{"[openarr]" , SYM_OPENARRAY},
135			{"[closearr]" , SYM_CLOSEARRAY},
136
137			// special symbols with parseable names
138			{"type-list" , SYM_TYPE_LIST},
139			{"type-i" , SYM_TYPE_I},
140			{"type-u" , SYM_TYPE_U},
141			{"type-float" , SYM_TYPE_FLOAT},
142			{"type-i32" , SYM_TYPE_I32},
143			{"type-u32" , SYM_TYPE_U32},
144			{"type-double" , SYM_TYPE_DOUBLE},
145			{"type-i64" , SYM_TYPE_I64},
146			{"type-u64" , SYM_TYPE_U64},
147			{"type-array" , SYM_TYPE_ARRAY},
148			{"type-symbol" , SYM_TYPE_SYMBOL},
149			{"type-char" , SYM_TYPE_CHAR},
150			{"type-byte" , SYM_TYPE_BYTE},
151			{"type-channel" , SYM_TYPE_CHANNEL},
152			{"type-lisparray" , SYM_TYPE_LISPARRAY},
153			{"type-dm" , SYM_TYPE_DEFRAG_MEM},
154			{"type-custom" , SYM_TYPE_CUSTOM},
155
156			// Fundamental operations
157			{"+" , SYM_ADD},
158			{"-" , SYM_SUB},
159			{"*" , SYM_MUL},
160			{"/" , SYM_DIV},
161			{"//" , SYM_INT_DIV},
162			{"mod" , SYM_MOD},
163			{"=" , SYM_NUMEQ},
164			{"!=" , SYM_NUM_NOT_EQ},
165			{"<" , SYM_LT},
166			{">" , SYM_GT},
167			{"<=" , SYM_LEQ},
168			{">=" , SYM_GEQ},
169			{"eval" , SYM_EVAL},
170			{"eval-program" , SYM_EVAL_PROGRAM},
171			{"and" , SYM_AND},
172			{"or" , SYM_OR},
173			{"not" , SYM_NOT},
174			{"yield" , SYM_YIELD},
175			{"wait" , SYM_WAIT},
176			{"spawn" , SYM_SPAWN},
177			{"atomic" , SYM_ATOMIC},
178			{"self" , SYM_SELF},
179			{"spawn-trap" , SYM_SPAWN_TRAP},
180			{"set-mailbox-size" , SYM_SET_MAILBOX_SIZE},
181			{"eq" , SYM_EQ},
182			{"not-eq" , SYM_NOT_EQ},
183			{"car" , SYM_CAR},
184			{"cdr" , SYM_CDR},
185			{"cons" , SYM_CONS},
186			{"list" , SYM_LIST},
187			{"append" , SYM_APPEND},
188			{"undefine" , SYM_UNDEFINE},
189			{"bufcreate" , SYM_BYTEARRAY_CREATE},
190			{"type-of" , SYM_TYPE_OF},
191			{"sym2str" , SYM_SYMBOL_TO_STRING},
192			{"str2sym" , SYM_STRING_TO_SYMBOL},
193			{"sym2u" , SYM_SYMBOL_TO_UINT},
194			{"u2sym" , SYM_UINT_TO_SYMBOL},
195			{"setcar" , SYM_SET_CAR},
196			{"setcdr" , SYM_SET_CDR},
197			{"setix" , SYM_SET_IX},
198			{"length" , SYM_LIST_LENGTH},
199			{"range" , SYM_RANGE},
200
201			{"assoc" , SYM_ASSOC}, // lookup an association
202			{"cossa" , SYM_COSSA}, // lookup an association "backwards"
203			{"acons" , SYM_ACONS}, // Add to alist
204			{"setassoc" , SYM_SET_ASSOC}, // Change association
205
206			{"shl" , SYM_SHL},
207			{"shr" , SYM_SHR},
208			{"bitwise-and" , SYM_BITWISE_AND},
209			{"bitwise-or" , SYM_BITWISE_OR},
210			{"bitwise-xor" , SYM_BITWISE_XOR},
211			{"bitwise-not" , SYM_BITWISE_NOT},
212
213			{"custom-destruct", SYM_CUSTOM_DESTRUCT},
214
215			{"to-i" , SYM_TO_I},
216			{"to-i32" , SYM_TO_I32},
217			{"to-u" , SYM_TO_U},
218			{"to-u32" , SYM_TO_U32},
219			{"to-float" , SYM_TO_FLOAT},
220			{"to-i64" , SYM_TO_I64},
221			{"to-u64" , SYM_TO_U64},
222			{"to-double" , SYM_TO_DOUBLE},
223			{"to-byte" , SYM_TO_BYTE},
224
225			{"event-register-handler", SYM_REG_EVENT_HANDLER},
226			{"take" , SYM_TAKE},
227			{"drop" , SYM_DROP},
228			{"mkarray" , SYM_MKARRAY},
229
230			{"dm-create" , SYM_DM_CREATE},
231			{"dm-alloc" , SYM_DM_ALLOC},
232
233			{"list?" , SYM_IS_LIST},
234			{"number?" , SYM_IS_NUMBER},
235			{"string?" , SYM_IS_STRING},
236			{"constant?" , SYM_IS_CONSTANT},
237
238			// fast access in list
239			{"ix" , SYM_IX},
240
241			{"identity" , SYM_IDENTITY},
242			{"array" , SYM_ARRAY},
243
244			// aliases
245			{"first" , SYM_CAR},
246			{"rest" , SYM_CDR},
247			{"fn" , SYM_LAMBDA},
248			{"def" , SYM_DEFINE},
249			{"true" , SYM_TRUE},
250			{"false" , SYM_NIL},
251			{"setvar" , SYM_SETVAR},
252			{"type-f32" , SYM_TYPE_FLOAT},
253			{"type-f64" , SYM_TYPE_DOUBLE},
254			{"array-create" , SYM_BYTEARRAY_CREATE},
255
256			};
257
258			static lbm_uint *symlist = NULL;
259			static lbm_uint next_symbol_id = RUNTIME_SYMBOLS_START;
260			static lbm_uint symbol_table_size_list = 0;
261			static lbm_uint symbol_table_size_list_flash = 0;
262			static lbm_uint symbol_table_size_strings = 0;
263			static lbm_uint symbol_table_size_strings_flash = 0;
264
265			// When rebooting an image...
266			void lbm_symrepr_set_symlist(lbm_uint *ls) {
267			symlist = ls;
268			}
269
270		21924	int lbm_symrepr_init(void) {
271		21924	symlist = NULL;
272		21924	next_symbol_id = RUNTIME_SYMBOLS_START;
273		21924	symbol_table_size_list = 0;
274		21924	symbol_table_size_list_flash = 0;
275		21924	symbol_table_size_strings = 0;
276		21924	symbol_table_size_strings_flash = 0;
277		21924	return 1;
278			}
279
280			void lbm_symrepr_name_iterator(symrepr_name_iterator_fun f) {
281
282			lbm_uint *curr = symlist;
283			while (curr) {
284			f((const char *)curr[NAME]);
285			curr = (lbm_uint *)curr[NEXT];
286			}
287			}
288
289		135172	const char *lookup_symrepr_name_memory(lbm_uint id) {
290
291		135172	lbm_uint *curr = symlist;
292	✓✗	1512372	while (curr) {
293	✓✓	1512372	if (id == curr[ID]) {
294		135172	return (const char *)curr[NAME];
295			}
296		1377200	curr = (lbm_uint*)curr[NEXT];
297			}
298			return NULL;
299			}
300
301			// Lookup symbol name given a symbol id
302		397910	const char *lbm_get_name_by_symbol(lbm_uint id) {
303		397910	lbm_uint sym_kind = SYMBOL_KIND(id);
304	✓✓✓	397910	switch (sym_kind) {
305		254786	case SYMBOL_KIND_SPECIAL: /* fall through */
306			case SYMBOL_KIND_FUNDAMENTAL:
307			case SYMBOL_KIND_APPFUN:
308	✓✓	4954772	for (unsigned int i = 0; i < NUM_SPECIAL_SYMBOLS; i ++) {
309	✓✓	4954758	if (id == special_symbols[i].id) {
310		254772	return (special_symbols[i].name);
311			}
312			}
313		14	return NULL;
314			break;
315		7952	case SYMBOL_KIND_EXTENSION: {
316		7952	lbm_uint ext_id = id - EXTENSION_SYMBOLS_START;
317	✓✗	7952	if (ext_id < lbm_get_max_extensions()) {
318		7952	return extension_table[ext_id].name;
319			}
320			return NULL;
321			} break;
322		135172	default:
323		135172	return lookup_symrepr_name_memory(id);
324			}
325			}
326
327			lbm_uint lbm_get_symbol_list_entry_by_name(char name) {
328			lbm_uint *curr = symlist;
329			while (curr) {
330			char str = (char)curr[NAME];
331			if (str_eq(name, str)) {
332			return (lbm_uint *)curr;
333			}
334			curr = (lbm_uint*)curr[NEXT];
335			}
336			return NULL;
337			}
338
339			// Lookup symbol id given symbol name
340		3793742	int lbm_get_symbol_by_name(char name, lbm_uint id) {
341
342			// loop through special symbols
343	✓✓	672192128	for (unsigned int i = 0; i < NUM_SPECIAL_SYMBOLS; i ++) {
344	✓✓	668731290	if (str_eq(name, (char *)special_symbols[i].name)) {
345		332904	*id = special_symbols[i].id;
346		332904	return 1;
347			}
348			}
349
350			// loop through extensions
351	✓✓	689854956	for (unsigned int i = 0; i < lbm_get_max_extensions(); i ++) {
352	✓✓✓✓	686438354	if (extension_table[i].name && str_eq(name, extension_table[i].name)) {
353		44236	*id = EXTENSION_SYMBOLS_START + i;
354		44236	return 1;
355			}
356			}
357
358		3416602	lbm_uint *curr = symlist;
359	✓✓	43933646	while (curr) {
360		41042026	char str = (char)curr[NAME];
361	✓✓	41042026	if (str_eq(name, str)) {
362		524982	*id = curr[ID];
363		524982	return 1;
364			}
365		40517044	curr = (lbm_uint*)curr[NEXT];
366			}
367		2891620	return 0;
368			}
369
370			extern lbm_flash_status lbm_write_const_array_padded(uint8_t data, lbm_uint n, lbm_uint res);
371
372		589530	bool store_symbol_name_flash(char name, lbm_uint res) {
373		589530	size_t n = strlen(name) + 1;
374	✗✓	589530	if (n == 1) return 0; // failure if empty symbol
375
376			lbm_uint alloc_size;
377	✓✓	589530	if (n % sizeof(lbm_uint) == 0) {
378		153606	alloc_size = n/(sizeof(lbm_uint));
379			} else {
380		435924	alloc_size = (n/(sizeof(lbm_uint))) + 1;
381			}
382
383		589530	lbm_uint symbol_addr = 0;
384		589530	lbm_flash_status s = lbm_write_const_array_padded((uint8_t*)name, n, &symbol_addr);
385	✓✗✗✓	589530	if (s != LBM_FLASH_WRITE_OK \|\| symbol_addr == 0) {
386			return false;
387			}
388		589530	symbol_table_size_strings_flash += alloc_size;
389		589530	*res = symbol_addr;
390		589530	return true;
391			}
392
393			// Symbol table
394			// non-const name copied into symbol-table-entry:
395			// Entry
396			// \|
397			// [name-ptr \| symbol-id \| next-ptr \| name n-bytes]
398			// \| /
399			// ------------points here -----
400			//
401			// const name referenced by symbol-table-entry:
402			// Entry
403			// \|
404			// [name-ptr \| symbol-id \| next-ptr]
405			// \|
406			// [name n-bytes]
407			//
408
409		151050	int lbm_add_symbol_base(char name, lbm_uint id) {
410			lbm_uint symbol_name_storage;
411	✗✓	151050	if (!store_symbol_name_flash(name, &symbol_name_storage)) return 0;
412		151050	lbm_uint new_symlist = lbm_image_add_symbol((char)symbol_name_storage, next_symbol_id, (lbm_uint)symlist);
413	✗✓	151050	if (!new_symlist) {
414			return 0;
415			}
416		151050	symlist = new_symlist;
417		151050	*id = next_symbol_id ++;
418		151050	return 1;
419			}
420
421		106664	int lbm_add_symbol(char name, lbm_uint id) {
422			lbm_uint sym_id;
423	✓✓	106664	if (!lbm_get_symbol_by_name(name, &sym_id)) {
424		43876	return lbm_add_symbol_base(name, id);
425			} else {
426		62788	*id = sym_id;
427		62788	return 1;
428			}
429			return 0;
430			}
431
432			// on Linux, win, etc a const string may not be at
433			// the same address between runs.
434		438480	int lbm_add_symbol_const_base(char name, lbm_uint id, bool link) {
435		438480	lbm_uint symbol_name_storage = (lbm_uint)name;
436			#ifdef __PIC__
437	✗✓	438480	if (!store_symbol_name_flash(name, &symbol_name_storage)) return 0;
438			#endif
439			lbm_uint *new_symlist;
440	✓✗	438480	if (link) {
441		438480	new_symlist = lbm_image_add_and_link_symbol((char*)symbol_name_storage, next_symbol_id, (lbm_uint)symlist, id);
442			} else {
443			new_symlist = lbm_image_add_symbol((char*)symbol_name_storage, next_symbol_id, (lbm_uint)symlist);
444			}
445	✓✗	438480	if (new_symlist) {
446		438480	symlist = new_symlist;
447		438480	*id = next_symbol_id ++;
448		438480	return 1;
449			}
450			return 0;
451			}
452
453		460404	int lbm_add_symbol_const(char name, lbm_uint id) {
454			lbm_uint sym_id;
455	✓✓	460404	if (!lbm_get_symbol_by_name(name, &sym_id)) {
456		438480	return lbm_add_symbol_const_base(name, id, true);
457			} else {
458		21924	*id = sym_id;
459		21924	return 1;
460			}
461			return 0;
462			}
463
464		56	int lbm_str_to_symbol(char name, lbm_uint sym_id) {
465	✓✓	56	if (lbm_get_symbol_by_name(name, sym_id))
466		28	return 1;
467	✓✗	28	else if (lbm_add_symbol(name, sym_id))
468		28	return 1;
469			return 0;
470			}
471
472		28	lbm_uint lbm_get_symbol_table_size(void) {
473		28	return (symbol_table_size_list +symbol_table_size_strings);
474			}
475
476		28	lbm_uint lbm_get_symbol_table_size_flash(void) {
477		28	return (symbol_table_size_list_flash +
478		28	symbol_table_size_strings_flash) * sizeof(lbm_uint);
479			}
480
481		28	lbm_uint lbm_get_symbol_table_size_names(void) {
482		28	return symbol_table_size_strings; // Bytes already
483			}
484
485		28	lbm_uint lbm_get_symbol_table_size_names_flash(void) {
486		28	return symbol_table_size_strings_flash * sizeof(lbm_uint);
487			}
488
489			bool lbm_symbol_in_flash(char *str) {
490			return !lbm_memory_ptr_inside((lbm_uint*)str);
491			}
492
493			bool lbm_symbol_list_entry_in_flash(char *str) {
494			lbm_uint *entry = lbm_get_symbol_list_entry_by_name(str);
495			return (entry == NULL \|\| !lbm_memory_ptr_inside(entry));
496			}