/
spinc.c
1671 lines (1537 loc) · 48.5 KB
/
spinc.c
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/*
* Spin to C/C++ translator
* Copyright 2011-2023 Total Spectrum Software Inc.
*
* +--------------------------------------------------------------------
* ¦ TERMS OF USE: MIT License
* +--------------------------------------------------------------------
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* +--------------------------------------------------------------------
*/
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <stdarg.h>
#include <ctype.h>
#include <time.h>
#include "spinc.h"
#include "preprocess.h"
#include "version.h"
#include "mcpp/mcpp_lib.h"
//#define DEBUG_YACC
extern int spinyyparse(void);
extern int basicyyparse(void);
extern int cgramyyparse(void);
extern int spinyydebug;
extern int basicyydebug;
extern int cgramyydebug;
int gl_useFullPaths = 0;
static int
FindSymbolExact(SymbolTable *S, const char *name)
{
Symbol *sym = FindSymbol(S, name);
if (!sym)
return 0;
if (!strcmp(sym->our_name, name))
return 1;
return 0;
}
/*
* make sure that a class name is safe, i.e. will
* not conflict with any identifier or C keyword/function
*/
static void
makeClassNameSafe(Module *P)
{
// check for conflict with C reserved word */
if ( Is_C_Reserved(P->classname)
|| (0 != FindSymbolExact(&P->objsyms, P->classname))
)
{
NormalizeIdentifier(P->classname);
}
// now check for conflicts within the class
while (0 != FindSymbolExact(&P->objsyms, P->classname)) {
char *newname = (char *)calloc(1, strlen(P->classname)+8);
strcpy(newname, P->classname);
free(P->classname);
P->classname = newname;
strcat(P->classname, "Class");
}
}
/*
* add global variable functions
*/
#include "sys/p1_code.spin.h"
#include "sys/p2_code.spin.h"
#include "sys/bytecode_rom.spin.h"
#include "sys/nucode_util.spin.h"
#include "sys/common_pasm.spin.h"
#include "sys/common.spin.h"
#include "sys/float.spin.h"
#include "sys/gcalloc.spin.h"
#include "sys/gc_pasm.spin.h"
#include "sys/gc_bytecode.spin.h"
void
InitGlobalModule(void)
{
SymbolTable *table;
Symbol *sym;
int oldtmpnum;
int saveyydebug;
const char *syscode = "";
size_t syscode_len = 0;
int debugVal = gl_debug;
int bcVal = (gl_output == OUTPUT_BYTECODE);
current = systemModule = NewModule("_system_", LANG_SPIN_SPIN1);
table = &systemModule->objsyms;
/* add some useful predefined constants */
sym = AddSymbol(table, "__debug__", SYM_CONSTANT, AstInteger(debugVal), NULL);
sym->flags |= SYMF_GLOBAL;
sym = AddSymbol(table, "__bytecode__", SYM_CONSTANT, AstInteger(bcVal), NULL);
sym->flags |= SYMF_GLOBAL;
sym = AddSymbol(table, "__propeller__", SYM_CONSTANT, AstInteger(gl_p2 ? 2 : 1), NULL);
sym->flags |= SYMF_GLOBAL;
/* global variables */
sym = AddSymbol(table, "__clkfreq_var", SYM_VARIABLE, ast_type_long, NULL);
sym->flags |= SYMF_GLOBAL;
sym->offset = gl_p2 ? (P2_CONFIG_BASE+0x4) : 0;
sym = AddSymbol(table, "__clkmode_var", SYM_VARIABLE, gl_p2 ? ast_type_long : ast_type_byte, NULL);
sym->flags |= SYMF_GLOBAL;
sym->offset = gl_p2 ? (P2_CONFIG_BASE+0x8) : 4;
sym = AddSymbol(table, "__sendptr", SYM_VARIABLE, ast_type_sendptr, NULL);
sym->flags |= SYMF_GLOBAL;
if (gl_output == OUTPUT_BYTECODE && gl_interp_kind != INTERP_KIND_NUCODE) {
sym->offset = 0x7ffc;
} else {
sym->offset = -1; // special flag for COG internal memory
}
sym = AddSymbol(table, "__recvptr", SYM_VARIABLE, ast_type_recvptr, NULL);
sym->flags |= SYMF_GLOBAL;
if (gl_output == OUTPUT_BYTECODE && gl_interp_kind != INTERP_KIND_NUCODE) {
sym->offset = 0x7ff8;
} else {
sym->offset = -2; // special flag for COG internal memory
}
if (gl_output != OUTPUT_BYTECODE || gl_interp_kind == INTERP_KIND_NUCODE) {
if (gl_interp_kind == INTERP_KIND_NUCODE) {
sym = AddSymbol(table, "__interp_dbase", SYM_VARIABLE, ast_type_ptr_long, NULL);
sym->flags |= SYMF_GLOBAL;
sym->offset = -0x1e0; // gives COG address
sym = AddSymbol(table, "__interp_vbase", SYM_VARIABLE, ast_type_ptr_byte, NULL);
sym->flags |= SYMF_GLOBAL;
sym->offset = -0x1e2; // gives COG address
sym = AddSymbol(table, "__interp_abortchain", SYM_VARIABLE, ast_type_ptr_long, NULL);
sym->flags |= SYMF_GLOBAL;
sym->offset = -0x1e4; // gives COG address
sym = AddSymbol(table, "__interp_abortresult", SYM_VARIABLE, ast_type_ptr_long, NULL);
sym->flags |= SYMF_GLOBAL;
sym->offset = -0x1e5; // gives COG address
sym = AddSymbol(table, "__interp_super", SYM_VARIABLE, ast_type_ptr_long, NULL);
sym->flags |= SYMF_GLOBAL;
sym->offset = -0x1e6; // gives COG address
sym = AddSymbol(table, "__interp_temp1", SYM_VARIABLE, ast_type_generic, NULL);
sym->flags |= SYMF_GLOBAL;
sym->offset = -0x1ea; // special flag for COG internal memory
sym = AddSymbol(table, "__interp_temp2", SYM_VARIABLE, ast_type_generic, NULL);
sym->flags |= SYMF_GLOBAL;
sym->offset = -0x1eb; // special flag for COG internal memory
sym = AddSymbol(table, "__interp_sp", SYM_VARIABLE, ast_type_generic, NULL);
sym->flags |= SYMF_GLOBAL;
sym->offset = -0x1f8; // special flag for COG internal memory
} else {
sym = AddSymbol(table, "__lockreg", SYM_VARIABLE, ast_type_long, NULL);
sym->flags |= SYMF_GLOBAL;
sym->offset = -3; // special flag for COG internal memory
}
}
if (gl_p2) {
sym = AddSymbol(table, "_baudrate", SYM_VARIABLE, ast_type_byte, NULL);
sym->flags |= SYMF_GLOBAL;
sym->offset = P2_CONFIG_BASE+0xc;
}
/* compile inline assembly */
if (gl_output == OUTPUT_ASM || gl_output == OUTPUT_COGSPIN || gl_output == OUTPUT_BYTECODE) {
int old_normalize = gl_normalizeIdents;
/* set up temporary variable processing */
oldtmpnum = SetTempVariableBase(90000, 0);
saveyydebug = spinyydebug; // do not show parser debug output for system
spinyydebug = 0;
// add in processor specific code
if (gl_output == OUTPUT_BYTECODE) {
switch (gl_interp_kind) {
case INTERP_KIND_P1ROM:
syscode = (const char *)sys_bytecode_rom_spin;
syscode_len = sys_bytecode_rom_spin_len;
break;
case INTERP_KIND_NUCODE:
syscode = (const char *)sys_nucode_util_spin;
syscode_len = sys_nucode_util_spin_len;
break;
default:
ERROR(NULL, "No internal code for bytecode type\n");
break;
}
} else {
if (gl_p2) {
syscode = (const char *)sys_p2_code_spin;
syscode_len = sys_p2_code_spin_len;
} else {
syscode = (const char *)sys_p1_code_spin;
syscode_len = sys_p1_code_spin_len;
}
}
gl_normalizeIdents = 0;
systemModule->Lptr = (LexStream *)calloc(sizeof(*systemModule->Lptr), 1);
systemModule->Lptr->flags |= LEXSTREAM_FLAG_NOSRC;
strToLex(systemModule->Lptr, syscode, syscode_len, "_system_", LANG_SPIN_SPIN1);
spinyyparse();
// add common PASM code
if (gl_output != OUTPUT_BYTECODE) {
strToLex(systemModule->Lptr, (const char *)sys_common_pasm_spin, sys_common_pasm_spin_len, "_common_pasm_", LANG_SPIN_SPIN1);
spinyyparse();
}
strToLex(systemModule->Lptr, (const char *)sys_common_spin, sys_common_spin_len, "_common_", LANG_SPIN_SPIN1);
spinyyparse();
strToLex(systemModule->Lptr, (const char *)sys_float_spin, sys_float_spin_len, "_float_", LANG_SPIN_SPIN1);
spinyyparse();
strToLex(systemModule->Lptr, (const char *)sys_gcalloc_spin, sys_gcalloc_spin_len, "_gc_", LANG_SPIN_SPIN1);
spinyyparse();
if (gl_output == OUTPUT_BYTECODE) {
strToLex(systemModule->Lptr, (const char *)sys_gc_bytecode_spin, sys_gc_bytecode_spin_len, "_platform_", LANG_SPIN_SPIN1);
spinyyparse();
} else {
strToLex(systemModule->Lptr, (const char *)sys_gc_pasm_spin, sys_gc_pasm_spin_len, "_platform_", LANG_SPIN_SPIN1);
spinyyparse();
}
ProcessModule(systemModule);
curfunc = NULL;
/* restore temp variable base */
(void)SetTempVariableBase(oldtmpnum, 89999);
spinyydebug = saveyydebug;
gl_normalizeIdents = old_normalize;
}
}
int
CheckedTypeSize(AST *type)
{
Module *P;
AST *subtype = type;
if (IsArrayType(type)) {
subtype = BaseType(type);
}
if (IsClassType(subtype)) {
P = GetClassPtr(subtype);
if (P && P->pendingvarblock) {
DeclareMemberVariables(P);
}
}
return TypeSize(type);
}
AST *
InferTypeFromName(AST *identifier)
{
const char *name;
const char *suffix;
if (identifier->kind == AST_ASSIGN) {
identifier = identifier->left;
}
if (identifier->kind == AST_ARRAYDECL) {
identifier = identifier->left;
}
if (identifier->kind != AST_IDENTIFIER) {
ERROR(identifier, "Internal error, expected identifier");
return NULL;
}
suffix = name = identifier->d.string;
if (!*name) {
ERROR(identifier, "Internal error, empty identifier");
return NULL;
}
while (suffix[1] != 0) {
suffix++;
}
switch(suffix[0]) {
case '$':
return ast_type_string;
case '%':
return ast_type_long;
case '!':
case '#':
return ast_type_float;
default:
{
Symbol *sym = GetCurImplicitTypes();
uint32_t typemask = 0;
uint32_t firstlet;
uint32_t checkmask;
firstlet = toupper(name[0]);
if (firstlet >= 'A' && firstlet <= 'Z') {
checkmask = 1U << (firstlet - 'A');
} else {
return ast_type_long;
}
if (sym->kind != SYM_CONSTANT) {
ERROR(identifier, "bad default type information");
} else {
typemask = EvalConstExpr((AST *)sym->v.ptr);
}
if (typemask & checkmask) {
return ast_type_float;
}
return ast_type_long;
}
}
}
/* helper function for parsing pasm FILE directives */
AST *
GetFullFileName(AST *baseString)
{
const char *basename;
char *newname;
AST *ret;
if (baseString->kind == AST_EXPRLIST) {
baseString = baseString->left;
}
if (baseString->kind != AST_STRING) {
ERROR(baseString, "Expected string");
basename = "error";
} else {
basename = baseString->d.string;
}
newname = find_file_on_path(&gl_pp, basename, NULL, current->fullname);
if (!newname) {
newname = strdup(basename);
}
AddSourceFile(basename, newname);
ret = NewAST(AST_STRING, NULL, NULL);
ret->d.string = newname;
return ret;
}
/*
* initialize BASIC data block; copies the data into the datblock
* section, and adds a RESTORE call to the start of the main program
*/
void
InitBasicData(Module *P)
{
AST *labeldef = AstIdentifier("__basic_data");
AST *labelref = AstIdentifier("__basic_data");
AST *varname = AstIdentifier("__basic_data_ptr");
AST *datinfo;
AST *init;
AST *zero;
zero = NewAST(AST_BYTELIST, NewAST(AST_EXPRLIST, AstInteger(0), NULL),
NULL);
datinfo = NewAST(AST_BYTELIST, P->bas_data, zero);
datinfo = AddToList(labeldef, datinfo);
datinfo = AddToList(NewAST(AST_LINEBREAK, NULL, NULL), datinfo);
datinfo = AddToList(NewAST(AST_ORGH, NULL, NULL), datinfo);
P->datblock = AddToList(datinfo, P->datblock);
// Add a definition for __basic_data_ptr
MaybeDeclareMemberVar(P, varname, ast_type_string, 0, NORMAL_VAR);
// now add in an initializer
init = AstAssign(varname,
NewAST(AST_ADDROF, labelref, NULL));
init = NewAST(AST_STMTLIST, init, NULL);
P->body = AddToList(init, P->body);
}
/*
* process a parsed module
*/
void
ProcessModule(Module *P)
{
Module *lastcurrent = current;
current = P;
P->botcomment = GetComments();
// interfaces are not supported in P1 bytecode
if (P->isInterface && TraditionalBytecodeOutput()) {
WARNING(NULL, "Interfaces are not supported in P1 bytecode output");
}
// process the main program, if there is one
if (P->body) {
AST *funcdecl = NewAST(AST_FUNCDECL, AstIdentifier("program"), NULL);
AST *funcvars = NewAST(AST_FUNCVARS, NULL, NULL);
AST *funcdef = NewAST(AST_FUNCDEF, funcdecl, funcvars);
/* switch to using the main language for the module */
P->curLanguage = P->mainLanguage;
/* if there is a basic DATA block, add an initializer */
if (P->bas_data) {
InitBasicData(P);
}
DeclareFunction(P, ast_type_void, 1, funcdef, P->body, NULL, NULL);
P->body = NULL;
}
/* now declare all the symbols that weren't already declared */
DeclareConstants(P, &P->conblock);
ProcessConstantOverrides(P);
DeclareMemberVariables(P);
DeclareFunctions(P);
if (P->isInterface) {
DeclareInterfaceFunctionPointers(P);
}
/* recursively process closures */
if (P->subclasses) {
ProcessModule(P->subclasses);
}
DeclareModuleLabels(P);
/* for all functions, do any language specific stuff */
if (gl_errors < gl_max_errors) {
Function *pf;
for (pf = P->functions; pf; pf = pf->next) {
ProcessOneFunc(pf);
}
}
/* restore the default language */
/* (we may have temporarily loaded functions written in another language) */
P->curLanguage = P->mainLanguage;
current = lastcurrent;
}
/*
* parse a spin file
* This is the main entry point for the compiler
* "name" is the file name; if it has no .spin suffix
* we'll try it with one
* if "gl_depth" is >= 0 then print the file name
*/
int gl_depth = 0;
static void
doparse(int language)
{
ASTReportInfo saveinfo;
AstReportAs(NULL, &saveinfo); // reset error tracking
if (IsBasicLang(language)) {
basicyydebug = spinyydebug;
basicyyparse();
} else if (IsCLang(language)) {
cgramyydebug = spinyydebug;
cgramyyparse();
} else {
spinyyparse();
}
AstReportDone(&saveinfo);
}
static char *
getObjFileExtension(const char *fname)
{
static char buf[1024];
char *ext = 0;
char *ptr;
FILE *f = fopen(fname, "r");
if (!f) {
return NULL;
}
buf[0] = 0;
ptr = fgets(buf, sizeof(buf), f);
if (ptr) {
if (!strncmp(ptr, "#line", 5)) {
ptr = strrchr(ptr, '.');
if (ptr) {
ext = ptr;
ptr = buf + strlen(buf) - 1;
if (ptr[0] == '\n') {
ptr[0] = 0;
--ptr;
}
if (ptr[0] == '\"') {
ptr[0] = 0;
}
}
}
}
fclose(f);
return ext;
}
static Module *
doParseFile(const char *name, Module *P, int *is_dup, AST *paramlist)
{
FILE *f = NULL;
Module *save, *Q, *LastQ;
char *fname = NULL;
char *parseString = NULL;
char *langptr;
int language = LANG_SPIN_SPIN1;
SymbolTable *saveCurrentTypes = NULL;
int new_module = 0;
const char *fullName = NULL;
char *shortName = NULL;
bool needExtension = false;
// check language to process
langptr = strrchr(name, '.');
if (langptr) {
if (!strcmp(langptr, ".o")) {
// try to figure out language based on contents of file
fname = find_file_on_path(&gl_pp, name, langptr, NULL);
if (fname) {
langptr = getObjFileExtension(fname);
} else {
langptr = NULL;
}
if (!langptr) {
WARNING(NULL, "Unable to find file type for %s, assuming C", name);
langptr = ".c";
}
}
if (!strcmp(langptr, ".bas")
|| !strcmp(langptr, ".basic")
|| !strcmp(langptr, ".bi")
)
{
language = LANG_BASIC_FBASIC;
} else if (!strcmp(langptr, ".c")
|| !strcmp(langptr, ".h")
|| !strcmp(langptr, ".a")
)
{
language = LANG_CFAMILY_C;
} else if (!strcmp(langptr, ".cpp")
|| !strcmp(langptr, ".cc")
|| !strcmp(langptr, ".cxx")
|| !strcmp(langptr, ".c++")
|| !strcmp(langptr, ".hpp")
|| !strcmp(langptr, ".hh")
)
{
language = LANG_CFAMILY_CPP;
}
else if (!strcmp(langptr, ".spin2"))
{
language = LANG_SPIN_SPIN2;
langptr = ".spin2";
}
else if (!strcmp(langptr, ".spin"))
{
language = LANG_SPIN_SPIN1;
langptr = ".spin";
}
else if (gl_p2)
{
language = LANG_SPIN_SPIN2;
langptr = ".spin2";
needExtension = true;
}
else
{
language = LANG_SPIN_SPIN1;
langptr = ".spin";
needExtension = true;
}
} else {
// no extension, see if we can figure one out
// if currently compiling a Spin1 program assume Spin1
// as the default
needExtension = true;
if (current && current->mainLanguage == LANG_SPIN_SPIN1) {
langptr = ".spin";
language = LANG_SPIN_SPIN1;
} else if (current && current->mainLanguage == LANG_SPIN_SPIN2) {
langptr = ".spin2";
language = LANG_SPIN_SPIN2;
} else if (gl_p2) {
langptr = ".spin2";
language = LANG_SPIN_SPIN2;
} else {
langptr = ".spin";
language = LANG_SPIN_SPIN1;
}
}
if (current) {
fname = find_file_on_path(&gl_pp, name, langptr, current->fullname);
if (!fname) {
if (!strcmp(langptr, ".spin2")) {
fname = find_file_on_path(&gl_pp, name, ".spin", current->fullname);
if (fname) {
language = LANG_SPIN_SPIN1;
langptr = ".spin";
}
} else if (!strcmp(langptr, ".spin")) {
fname = find_file_on_path(&gl_pp, name, ".spin2", current->fullname);
if (fname) {
language = LANG_SPIN_SPIN2;
langptr = ".spin2";
}
}
}
if (fname) {
fname = NormalizePath(fname);
}
} else if (!strcmp(langptr, ".a")) {
fname = find_file_on_path(&gl_pp, name, langptr, NULL);
}
if (!fname) {
fname = strdup(name);
}
if (needExtension) {
if (!langptr) langptr = ".spin";
shortName = (char *)malloc(strlen(name) + strlen(langptr) + 2);
strcpy(shortName, name);
strcat(shortName, langptr);
} else {
shortName = strdup(name);
}
fullName = MakeAbsolutePath(fname);
if (gl_useFullPaths) {
fname = (char *)fullName;
}
// check for file already included
if (P) {
Symbol *sym = FindSymbol(&P->objsyms, fname);
if (sym) {
if (sym->kind != SYM_FILE) {
ERROR(NULL, "Expected FILE type for symbol %s", fname);
return P;
}
if (is_dup) {
*is_dup = 1;
}
return P;
}
}
f = fopen(fname, "r");
if (!f) {
int lineNum = current ? current->Lptr->lineCounter : 0;
AST *errAst = current ? DummyLineAst(lineNum) : NULL;
ERROR(errAst, "Unable to open file `%s': %s", fname, strerror(errno));
exit(1);
}
AddSourceFile(shortName, fullName);
save = current;
if (!P) {
P = NewModule(fname, language);
P->fromUsing = 1;
new_module = 1;
if (paramlist) {
P->basename = NewTemporaryVariable(P->basename, NULL);
P->classname = NewTemporaryVariable(P->classname, NULL);
P->objparams = paramlist;
}
}
P->curLanguage = language;
if (gl_printprogress) {
int n = gl_depth;
const char *tail;
while (n > 0) {
printf("|-");
--n;
}
tail = FindLastDirectoryChar(fname);
if (tail) {
tail++;
} else {
tail = fname;
}
printf("%s\n", tail);
gl_depth++;
}
/* if we have already visited this file, skip it */
/* also finds the last element in the list, so we can append to
the list easily */
if (new_module) {
LastQ = NULL;
for (Q = allparse; Q; Q = Q->next) {
if (!strcmp(P->basename, Q->basename)) {
free(fname);
free(P);
fclose(f);
if (gl_printprogress) {
gl_depth--;
}
*is_dup = 1;
return Q;
}
LastQ = Q;
}
if (LastQ)
LastQ->next = P;
else
allparse = P;
}
P->parent = current;
current = P;
saveCurrentTypes = currentTypes;
currentTypes = (SymbolTable *)calloc(1, sizeof(*currentTypes));
currentTypes->next = &P->objsyms;
if (LangCaseInSensitive(language)) {
currentTypes->flags = SYMTAB_FLAG_NOCASE;
}
AddSymbol(&P->objsyms, fname, SYM_FILE, (void *)0, NULL);
if (gl_preprocess) {
void *defineState;
#define MAX_MCPP_ARGC 255
if (IsCLang(language)) {
/* use mcpp */
char *argv[MAX_MCPP_ARGC+1];
int argc = 0;
int r;
const char *errString;
argv[argc++] = "flexspin";
argc = pp_get_defines_as_args(&gl_pp, argc, argv, MAX_MCPP_ARGC);
if (argc >= MAX_MCPP_ARGC-1) {
ERROR(NULL, "ERROR: too many defines\n");
}
argv[argc++] = fname;
argv[argc] = NULL;
mcpp_use_mem_buffers(1);
r = mcpp_lib_main(argc, argv);
errString = mcpp_get_mem_buffer(ERR);
parseString = mcpp_get_mem_buffer(OUT);
if (r != 0) {
if (errString) {
ERROR(NULL, "Preprocessor errors:\n%s", errString);
} else {
ERROR(NULL, "Preprocessor failed!\n");
}
exit(1);
} else if (errString && strlen(errString)) {
WARNING(NULL, "Preprocessor warnings:\n%s", errString);
}
} else {
SetPreprocessorLanguage(language);
pp_push_file(&gl_pp, fname);
defineState = pp_get_define_state(&gl_pp);
if (language == LANG_SPIN_SPIN2) {
static const char asmclk_def[] = "hubset\t##clkmode_ & !%11\013\twaitx\t##20_000_000/100\013\thubset\t##clkmode_";
/* add predefined ASMCLK macro */
pp_define(&gl_pp, "asmclk", asmclk_def);
pp_define(&gl_pp, "Asmclk", asmclk_def);
pp_define(&gl_pp, "AsmClk", asmclk_def);
pp_define(&gl_pp, "ASMCLK", asmclk_def);
}
pp_run(&gl_pp);
parseString = pp_finish(&gl_pp);
pp_restore_define_state(&gl_pp, defineState);
}
strToLex(NULL, parseString, strlen(parseString), fname, language);
doparse(language);
free(parseString);
} else {
fileToLex(NULL, f, fname, language);
doparse(language);
}
fclose(f);
if (gl_errors >= gl_max_errors) {
free(fname);
exit(1);
}
if (gl_printprogress) {
gl_depth--;
}
if (new_module) {
/* work to avoid conflicts with variables and constants */
makeClassNameSafe(P);
if (gl_gas_dat) {
current->datname = (char *)malloc(strlen(P->classname) + 40);
if (!current->datname) {
fprintf(stderr, "Out of memory!\n");
exit(2);
}
sprintf(current->datname, "_dat_%s_", P->classname);
} else {
current->datname = "dat";
}
}
if (gl_errors >= gl_max_errors) {
free(fname);
exit(1);
}
current = save;
currentTypes = saveCurrentTypes;
return P;
}
static Module *
LoadFileIntoModule(const char *name, Module *P, AST *params)
{
int is_dup = 0;
P = doParseFile(name, P, &is_dup, params);
if (!is_dup) {
ProcessModule(P);
}
return P;
}
Module *
ParseFile(const char *name, AST *params)
{
return LoadFileIntoModule(name, NULL, params);
}
//
// now that we've figured out what's reachable, remove
// uncalled methods from modules
//
static int
doPruneMethods(Module *P)
{
Function *pf;
Function **oldptr = &P->functions;
for(;;) {
pf = *oldptr;
if (!pf) break;
if (!pf->used_as_ptr) {
if (pf->callSites == 0) {
*oldptr = pf->next; // remove this function
} else if (pf->body && pf->body->kind == AST_STRING) {
*oldptr = pf->next; // also remove
} else {
oldptr = &pf->next;
}
} else {
oldptr = &pf->next;
}
}
return 1;
}
static void MarkStaticFunctionPointers(AST *list);
//
// check to see whether annotations should force a function
// to be compiled
//
static bool
AnnotationsForceUse(AST *annote) {
const char *str = (const char *)annote->d.ptr;
if (!strcmp(str, "inline")) {
return false;
}
return true;
}
//
// remove unused methods
// if "isBinary" is true we can eliminate any methods not called
// directly or indirectly from the main function
// Otherwise, we mark everything accessible from public functions
//
static void
CheckUnusedMethods(int isBinary)
{
Module *P;
Function *pf;
Module *savecurrent = current;
// mark everything unused
for (P = allparse; P; P = P->next) {
if (P->funcblock) {
// make sure pending functions are declared
DeclareFunctions(P);
}
for (pf = P->functions; pf; pf = pf->next) {
if (P == allparse && !isBinary && pf->is_public && pf->body && pf->body->kind != AST_STRING) {
pf->callSites = 1;
} else {
pf->callSites = 0;
}
}
}
if (isBinary) {
MarkUsed(GetMainFunction(allparse), "__root__");
} else {
// mark stuff called via public functions
for (P = allparse; P; P = P->next) {
for (pf = P->functions; pf; pf = pf->next) {
if (pf->callSites != 0) {
if (pf->is_public) {
MarkUsed(pf, "__public__");
} else if (pf->annotations && AnnotationsForceUse(pf->annotations)) {
MarkUsed(pf, "__annotations__");
}
}
}
}
}
// check for functions called via pointers
for (P = allparse; P; P = P->next) {
current = P;
MarkStaticFunctionPointers(P->datblock);
current = savecurrent;
}
// mark all functions called via pointers
for (P = allparse; P; P = P->next) {
for (pf = P->functions; pf; pf = pf->next) {
if (pf->callSites == 0 && pf->used_as_ptr) {
MarkUsed(pf, "__func pointer__");
}
}
}
}
static void
MarkStaticFunctionPointers(AST *list)
{
AST *sub;
Symbol *sym;
while (list) {
switch (list->kind) {
case AST_SIMPLEFUNCPTR:
sub = list->left;
sym = LookupAstSymbol(sub, NULL);
if (sym) {
Function *f;
if (sym->kind != SYM_FUNCTION) {
ERROR(list, "%s is not a function", sym->user_name);
return;
}
f = (Function *)sym->v.ptr;
AddIndirectFunctionCall(f);
MarkUsed(f, "static func");
MarkSystemFuncUsed("__call_methodptr");
}
break;
default:
MarkStaticFunctionPointers(list->left);
break;
}
list = list->right;
}
}
static int
VisitModule(Module *P, ModuleFunc fn, unsigned visit)
{
int ok = 1;
Module *savecurrent = current;
while (P && ok) {
current = P;
if (P->visitFlag != visit) {
P->visitFlag = visit;
ok = (*fn)(P);
if (!ok) break;
ok = VisitModule(P->subclasses, fn, visit);
}
P = P->next;
}
current = savecurrent;
return ok;
}
void
IterateOverModules(ModuleFunc fn)
{
static int visitflag = 0x00;
visitflag = (visitflag + 1) & 0xff;
(void)VisitModule(allparse, fn, visitflag);
}
static int zeroCallSites(Module *P) {
Function *pf;
for (pf = P->functions; pf; pf = pf->next) {
pf->callSites = 0;