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fteqw/engine/qclib/pr_exec.c

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#define PROGSUSED
#include "progsint.h"
//#include "editor.h"
#if __STDC_VERSION__ >= 199901L
#define fte_restrict restrict
#elif defined(_MSC_VER)
#define fte_restrict __restrict
#else
#define fte_restrict
#endif
#define HunkAlloc BADGDFG sdfhhsf FHS
#define Host_Error Sys_Error
// I put the following here to resolve "undefined reference to `__imp__vsnprintf'" with MinGW64 ~ Moodles
#if 0//def _WIN32
#if (_MSC_VER >= 1400)
//with MSVC 8, use MS extensions
#define snprintf linuxlike_snprintf_vc8
int VARGS linuxlike_snprintf_vc8(char *buffer, int size, const char *format, ...) LIKEPRINTF(3);
#define vsnprintf(a, b, c, d) vsnprintf_s(a, b, _TRUNCATE, c, d)
#else
//msvc crap
#define snprintf linuxlike_snprintf
int VARGS linuxlike_snprintf(char *buffer, int size, const char *format, ...) LIKEPRINTF(3);
#define vsnprintf linuxlike_vsnprintf
int VARGS linuxlike_vsnprintf(char *buffer, int size, const char *format, va_list argptr);
#endif
#endif
//=============================================================================
char *PR_SaveCallStack (progfuncs_t *progfuncs, char *buf, int *bufofs, int bufmax);
/*
=================
PR_PrintStatement
=================
*/
static void PR_PrintStatement (progfuncs_t *progfuncs, int statementnum)
{
unsigned int op;
unsigned int arg[3];
switch(current_progstate->structtype)
{
default:
case PST_DEFAULT:
case PST_QTEST:
op = ((dstatement16_t*)current_progstate->statements + statementnum)->op;
arg[0] = ((dstatement16_t*)current_progstate->statements + statementnum)->a;
arg[1] = ((dstatement16_t*)current_progstate->statements + statementnum)->b;
arg[2] = ((dstatement16_t*)current_progstate->statements + statementnum)->c;
break;
case PST_KKQWSV:
case PST_FTE32:
op = ((dstatement32_t*)current_progstate->statements + statementnum)->op;
arg[0] = ((dstatement32_t*)current_progstate->statements + statementnum)->a;
arg[1] = ((dstatement32_t*)current_progstate->statements + statementnum)->b;
arg[2] = ((dstatement32_t*)current_progstate->statements + statementnum)->c;
break;
}
#if !defined(MINIMAL) && !defined(OMIT_QCC)
if ( (unsigned)op < OP_NUMOPS)
{
int i;
printf ("%s ", pr_opcodes[op].name);
i = strlen(pr_opcodes[op].name);
for ( ; i<10 ; i++)
printf (" ");
}
else
#endif
printf ("op%3i ", op);
if (op == OP_IF_F || op == OP_IFNOT_F)
printf ("%sbranch %i",PR_GlobalString(progfuncs, arg[0]),arg[1]);
else if (op == OP_GOTO)
{
printf ("branch %i",arg[0]);
}
else if ( (unsigned)(op - OP_STORE_F) < 6)
{
printf ("%s",PR_GlobalString(progfuncs, arg[0]));
printf ("%s", PR_GlobalStringNoContents(progfuncs, arg[1]));
}
else
{
if (arg[0])
printf ("%s",PR_GlobalString(progfuncs, arg[0]));
if (arg[1])
printf ("%s",PR_GlobalString(progfuncs, arg[1]));
if (arg[2])
printf ("%s", PR_GlobalStringNoContents(progfuncs, arg[2]));
}
printf ("\n");
}
#ifdef _WIN32
static void VARGS QC_snprintfz (char *dest, size_t size, const char *fmt, ...)
{
va_list args;
va_start (args, fmt);
vsnprintf (dest, size-1, fmt, args);
va_end (args);
//make sure its terminated.
dest[size-1] = 0;
}
#else
#define QC_snprintfz snprintf
#endif
void PDECL PR_GenerateStatementString (pubprogfuncs_t *ppf, int statementnum, char *out, int outlen)
{
progfuncs_t *progfuncs = (progfuncs_t*)ppf;
unsigned int op;
unsigned int arg[3];
*out = 0;
outlen--;
switch(current_progstate->structtype)
{
case PST_DEFAULT:
case PST_QTEST:
op = ((dstatement16_t*)current_progstate->statements + statementnum)->op;
arg[0] = ((dstatement16_t*)current_progstate->statements + statementnum)->a;
arg[1] = ((dstatement16_t*)current_progstate->statements + statementnum)->b;
arg[2] = ((dstatement16_t*)current_progstate->statements + statementnum)->c;
break;
case PST_KKQWSV:
case PST_FTE32:
op = ((dstatement32_t*)current_progstate->statements + statementnum)->op;
arg[0] = ((dstatement32_t*)current_progstate->statements + statementnum)->a;
arg[1] = ((dstatement32_t*)current_progstate->statements + statementnum)->b;
arg[2] = ((dstatement32_t*)current_progstate->statements + statementnum)->c;
break;
default:
return;
}
op = op & ~0x8000; //break points.
if (current_progstate->linenums)
{
QC_snprintfz (out, outlen, "%3i: ", current_progstate->linenums[statementnum]);
outlen -= strlen(out);
out += strlen(out);
}
else
{
QC_snprintfz (out, outlen, "%3i: ", statementnum);
outlen -= strlen(out);
out += strlen(out);
}
#if !defined(MINIMAL) && !defined(OMIT_QCC)
if ( (unsigned)op < OP_NUMOPS)
{
QC_snprintfz (out, outlen, "%-12s ", pr_opcodes[op].opname);
outlen -= strlen(out);
out += strlen(out);
}
else
#endif
{
QC_snprintfz (out, outlen, "op%3i ", op);
outlen -= strlen(out);
out += strlen(out);
}
if (op == OP_IF_F || op == OP_IFNOT_F || op == OP_IF_I || op == OP_IFNOT_I || op == OP_IF_S || op == OP_IFNOT_S)
{
QC_snprintfz (out, outlen, "%sbranch %i(%i)",PR_GlobalStringNoContents(progfuncs, arg[0]),(short)arg[1], statementnum+(short)arg[0]);
outlen -= strlen(out);
out += strlen(out);
}
else if (op == OP_GOTO)
{
QC_snprintfz (out, outlen, "branch %i(%i)",(short)arg[0], statementnum+(short)arg[0]);
outlen -= strlen(out);
out += strlen(out);
}
else if ( (unsigned)(op - OP_STORE_F) < 6)
{
QC_snprintfz (out, outlen, "%s",PR_GlobalStringNoContents(progfuncs, arg[0]));
outlen -= strlen(out);
out += strlen(out);
QC_snprintfz (out, outlen, "%s", PR_GlobalStringNoContents(progfuncs, arg[1]));
outlen -= strlen(out);
out += strlen(out);
}
else
{
if (arg[0])
{
QC_snprintfz (out, outlen, "%s",PR_GlobalStringNoContents(progfuncs, arg[0]));
outlen -= strlen(out);
out += strlen(out);
}
if (arg[1])
{
QC_snprintfz (out, outlen, "%s",PR_GlobalStringNoContents(progfuncs, arg[1]));
outlen -= strlen(out);
out += strlen(out);
}
if (arg[2])
{
QC_snprintfz (out, outlen, "%s", PR_GlobalStringNoContents(progfuncs, arg[2]));
outlen -= strlen(out);
out += strlen(out);
}
}
QC_snprintfz (out, outlen, "\n");
outlen -= 1;
out += 1;
}
/*
============
PR_StackTrace
============
*/
static void PDECL PR_PrintRelevantLocals(progfuncs_t *progfuncs)
{
//scan for op_address/op_load instructions within the function
int st, st2;
int op;
dstatement16_t *st16 = current_progstate->statements;
int line;
if (!current_progstate->linenums || current_progstate->structtype != PST_DEFAULT)
return;
line = current_progstate->linenums[pr_xstatement];
for (st = pr_xfunction->first_statement; st16[st].op != OP_DONE; st++)
{
if (current_progstate->linenums[st] < line - 2 || current_progstate->linenums[st] > line + 2)
continue; //don't go crazy with this.
op = st16[st].op & ~0x8000;
if (op == OP_ADDRESS || (op >= OP_LOAD_F && op <= OP_LOAD_FNC) || op == OP_LOAD_I || op == OP_LOAD_P)
{
ddef16_t *ent = ED_GlobalAtOfs16(progfuncs, st16[st].a);
ddef16_t *fld = ED_GlobalAtOfs16(progfuncs, st16[st].b);
pbool skip = false;
edictrun_t *ed;
unsigned int entnum;
eval_t *ptr;
fdef_t *fdef;
fdef_t *cnfd;
const char *classname;
if (!ent || !fld)
continue;
//all this extra code to avoid printing dupes...
for (st2 = st-1; st2 >= pr_xfunction->first_statement; st2--)
{
if (current_progstate->linenums[st2] < line - 2 || current_progstate->linenums[st2] > line + 2)
continue;
op = st16[st2].op & ~0x8000;
if (op == OP_ADDRESS || (op >= OP_LOAD_F && op <= OP_LOAD_FNC) || op == OP_LOAD_I || op == OP_LOAD_P)
if (st16[st].a == st16[st2].a && st16[st].b == st16[st2].b)
{
skip = true;
break;
}
}
if (skip)
continue;
entnum = ((eval_t *)&pr_globals[st16[st].a])->edict;
if (entnum >= sv_num_edicts)
{
classname = "INVALID";
ptr = NULL;
}
else
{
ed = PROG_TO_EDICT(progfuncs, entnum);
ptr = (eval_t *)(((int *)edvars(ed)) + ((eval_t *)&pr_globals[st16[st].b])->_int + progfuncs->funcs.fieldadjust);
cnfd = ED_FindField(progfuncs, "classname");
if (cnfd)
{
string_t *v = (string_t *)((char *)edvars(ed) + cnfd->ofs*4);
classname = PR_StringToNative(&progfuncs->funcs, *v);
}
else
classname = "";
}
if (*classname)
fdef = ED_ClassFieldAtOfs(progfuncs, ((eval_t *)&pr_globals[st16[st].b])->_int, classname);
else
fdef = ED_FieldAtOfs(progfuncs, ((eval_t *)&pr_globals[st16[st].b])->_int);
if (fdef)
printf(" %s.%s: %s\n", ent->s_name+progfuncs->funcs.stringtable, fld->s_name+progfuncs->funcs.stringtable, PR_ValueString(progfuncs, fdef->type, ptr, false));
else
printf(" %s.%s: BAD FIELD DEF - %#x\n", ent->s_name+progfuncs->funcs.stringtable, fld->s_name+progfuncs->funcs.stringtable, ptr->_int);
}
}
}
void PDECL PR_StackTrace (pubprogfuncs_t *ppf, int showlocals)
{
progfuncs_t *progfuncs = (progfuncs_t *)ppf;
const mfunction_t *f;
int i;
int progs;
int arg;
int *globalbase;
int tracing = progfuncs->funcs.debug_trace;
progs = -1;
if (pr_depth == 0)
{
printf ("<NO STACK>\n");
return;
}
progfuncs->funcs.debug_trace = -10;
//point this to the function's locals
globalbase = (int *)pr_globals + pr_xfunction->parm_start + pr_xfunction->locals;
pr_stack[pr_depth].f = pr_xfunction;
pr_stack[pr_depth].s = pr_xstatement;
for (i=pr_depth ; i>0 ; i--)
{
f = pr_stack[i].f;
if (!f)
{
printf ("<NO FUNCTION>\n");
}
else
{
globalbase -= f->locals;
if (pr_stack[i].progsnum != progs)
{
progs = pr_stack[i].progsnum;
printf ("<%s>\n", pr_progstate[progs].filename);
}
if (!f->s_file)
printf ("stripped : %s\n", PR_StringToNative(ppf, f->s_name));
else
{
int st = pr_stack[i].s;
if (pr_progstate[progs].linenums)
printf ("%12s:%i: %s\n", PR_StringToNative(ppf, f->s_file), pr_progstate[progs].linenums[st], PR_StringToNative(ppf, f->s_name));
else
printf ("%12s : %s\n", PR_StringToNative(ppf, f->s_file), PR_StringToNative(ppf, f->s_name));
}
//locals:0 = no locals
//locals:1 = top only
//locals:2 = ALL locals.
if ((i == pr_depth && showlocals == 1) || showlocals >= 2)
{
for (arg = 0; arg < f->locals; arg++)
{
ddef16_t *local;
local = ED_GlobalAtOfs16(progfuncs, f->parm_start+arg);
if (!local)
{
//printf(" ofs %i: %f : %i\n", f->parm_start+arg, *(float *)(globalbase - f->locals+arg), *(int *)(globalbase - f->locals+arg) );
}
else
{
printf(" %s: %s\n", local->s_name+progfuncs->funcs.stringtable, PR_ValueString(progfuncs, local->type, (eval_t*)(globalbase+arg), false));
if (local->type == ev_vector)
arg+=2;
}
}
}
if (i == pr_depth)
{ //scan for op_address/op_load instructions within the function
PR_PrintRelevantLocals(progfuncs);
}
if (i == pr_depth)
globalbase = prinst.localstack + prinst.localstack_used;
}
}
progfuncs->funcs.debug_trace = tracing;
}
/*
============================================================================
PR_ExecuteProgram
The interpretation main loop
============================================================================
*/
/*
====================
PR_EnterFunction
Returns the new program statement counter
====================
*/
int ASMCALL PR_EnterFunction (progfuncs_t *progfuncs, mfunction_t *f, int progsnum)
{
int i, j, c, o;
pr_stack[pr_depth].s = pr_xstatement;
pr_stack[pr_depth].f = pr_xfunction;
pr_stack[pr_depth].progsnum = progsnum;
pr_stack[pr_depth].pushed = prinst.spushed;
pr_stack[pr_depth].stepping = progfuncs->funcs.debug_trace;
if (progfuncs->funcs.debug_trace == DEBUG_TRACE_OVER)
progfuncs->funcs.debug_trace = DEBUG_TRACE_OFF;
if (prinst.profiling)
{
pr_stack[pr_depth].timestamp = Sys_GetClock();
}
pr_depth++;
if (pr_depth == MAX_STACK_DEPTH)
{
pr_depth--;
PR_StackTrace (&progfuncs->funcs, false);
printf ("stack overflow on call to %s (depth %i)\n", progfuncs->funcs.stringtable+f->s_name, pr_depth);
//comment this out if you want the progs to try to continue anyway (could cause infinate loops)
PR_AbortStack(&progfuncs->funcs);
externs->Abort("Stack Overflow in %s\n", progfuncs->funcs.stringtable+f->s_name);
return pr_xstatement;
}
prinst.localstack_used += prinst.spushed; //make sure the call doesn't hurt pushed pointers
// save off any locals that the new function steps on (to a side place, fromwhere they are restored on exit)
c = f->locals;
if (prinst.localstack_used + c > LOCALSTACK_SIZE)
{
prinst.localstack_used -= prinst.spushed;
pr_depth--;
PR_RunError (&progfuncs->funcs, "PR_ExecuteProgram: locals stack overflow\n");
}
for (i=0 ; i < c ; i++)
prinst.localstack[prinst.localstack_used+i] = ((int *)pr_globals)[f->parm_start + i];
prinst.localstack_used += c;
// copy parameters (set initial values)
o = f->parm_start;
for (i=0 ; i<f->numparms ; i++)
{
for (j=0 ; j<f->parm_size[i] ; j++)
{
((int *)pr_globals)[o] = ((int *)pr_globals)[OFS_PARM0+i*3+j];
o++;
}
}
pr_xfunction = f;
return f->first_statement - 1; // offset the s++
}
/*
====================
PR_LeaveFunction
====================
*/
int ASMCALL PR_LeaveFunction (progfuncs_t *progfuncs)
{
int i, c;
if (pr_depth <= 0)
Sys_Error ("prog stack underflow");
// restore locals from the stack
c = pr_xfunction->locals;
prinst.localstack_used -= c;
if (prinst.localstack_used < 0)
PR_RunError (&progfuncs->funcs, "PR_ExecuteProgram: locals stack underflow\n");
for (i=0 ; i < c ; i++)
((int *)pr_globals)[pr_xfunction->parm_start + i] = prinst.localstack[prinst.localstack_used+i];
// up stack
pr_depth--;
PR_SwitchProgsParms(progfuncs, pr_stack[pr_depth].progsnum);
prinst.spushed = pr_stack[pr_depth].pushed;
if (!progfuncs->funcs.debug_trace)
progfuncs->funcs.debug_trace = pr_stack[pr_depth].stepping;
if (prinst.profiling)
{
unsigned long long cycles;
cycles = Sys_GetClock() - pr_stack[pr_depth].timestamp;
pr_xfunction->profiletime += cycles;
pr_xfunction = pr_stack[pr_depth].f;
if (pr_depth)
pr_xfunction->profilechildtime += cycles;
}
else
pr_xfunction = pr_stack[pr_depth].f;
prinst.localstack_used -= prinst.spushed;
return pr_stack[pr_depth].s;
}
ddef32_t *ED_FindLocalOrGlobal(progfuncs_t *progfuncs, char *name, eval_t **val)
{
static ddef32_t def;
ddef32_t *def32;
ddef16_t *def16;
int i;
if (prinst.pr_typecurrent < 0)
return NULL;
switch (pr_progstate[prinst.pr_typecurrent].structtype)
{
case PST_DEFAULT:
case PST_KKQWSV:
//this gets parms fine, but not locals
if (pr_xfunction)
for (i = 0; i < pr_xfunction->locals; i++)
{
def16 = ED_GlobalAtOfs16(progfuncs, pr_xfunction->parm_start+i);
if (!def16)
continue;
if (!strcmp(def16->s_name+progfuncs->funcs.stringtable, name))
{
*val = (eval_t *)&pr_progstate[prinst.pr_typecurrent].globals[pr_xfunction->parm_start+i];
//we need something like this for functions that are not the top layer
// *val = (eval_t *)&localstack[localstack_used-pr_xfunction->numparms*4];
def.ofs = def16->ofs;
def.s_name = def16->s_name;
def.type = def16->type;
return &def;
}
}
def16 = ED_FindGlobal16(progfuncs, name);
if (!def16)
return NULL;
def.ofs = def16->ofs;
def.type = def16->type;
def.s_name = def16->s_name;
def32 = &def;
break;
case PST_QTEST:
case PST_FTE32:
//this gets parms fine, but not locals
if (pr_xfunction)
for (i = 0; i < pr_xfunction->numparms; i++)
{
def32 = ED_GlobalAtOfs32(progfuncs, pr_xfunction->parm_start+i);
if (!def32)
continue;
if (!strcmp(def32->s_name+progfuncs->funcs.stringtable, name))
{
*val = (eval_t *)&pr_progstate[prinst.pr_typecurrent].globals[pr_xfunction->parm_start+i];
//we need something like this for functions that are not the top layer
// *val = (eval_t *)&localstack[localstack_used-pr_xfunction->numparms*4];
return def32;
}
}
def32 = ED_FindGlobal32(progfuncs, name);
if (!def32)
return NULL;
break;
default:
Sys_Error("Bad struct type in ED_FindLocalOrGlobal");
def32 = NULL;
}
*val = (eval_t *)&pr_progstate[prinst.pr_typecurrent].globals[def32->ofs];
return &def;
}
static char *COM_TrimString(char *str, char *buffer, int buffersize)
{
int i;
while (*str <= ' ' && *str>'\0')
str++;
for (i = 0; i < buffersize-1; i++)
{
if (*str <= ' ')
break;
buffer[i] = *str++;
}
buffer[i] = '\0';
return buffer;
}
pbool LocateDebugTerm(progfuncs_t *progfuncs, char *key, eval_t **result, etype_t *rettype, eval_t *store)
{
ddef32_t *def;
fdef_t *fdef;
int fofs;
eval_t *val = NULL, *fval=NULL;
char *c, *c2;
etype_t type = ev_void;
struct edictrun_s *ed;
etype_t ptrtype = ev_void;
c = strchr(key, '.');
if (c) *c = '\0';
def = ED_FindLocalOrGlobal(progfuncs, key, &val);
if (!def)
{
if (*key == '\'')
{
type = ev_vector;
val = store;
val->_vector[0] = 0;
val->_vector[1] = 0;
val->_vector[2] = 0;
}
else if (*key == '\"')
{
type = ev_string;
val = store;
val->string = 0;
}
else if (atoi(key))
{
type = ev_entity;
val = store;
val->edict = atoi(key);
}
}
else
type = def->type;
if (c) *c = '.';
if (!val)
{
return false;
}
//go through ent vars
c = strchr(key, '.');
while(c)
{
c2 = c+1;
c = strchr(c2, '.');
type = type &~DEF_SAVEGLOBAL;
if (current_progstate && current_progstate->types)
type = current_progstate->types[type].type;
if (type != ev_entity)
return false;
if (c)*c = '\0';
fdef = ED_FindField(progfuncs, c2);
if (!fdef)
{
char trimmed[256];
c2 = COM_TrimString(c2, trimmed, sizeof(trimmed));
def = ED_FindLocalOrGlobal(progfuncs, c2, &fval);
if (def && def->type == ev_field)
{
fofs = fval->_int + progfuncs->funcs.fieldadjust;
fdef = ED_FieldAtOfs(progfuncs, fofs);
}
}
if (c)*c = '.';
if (!fdef)
return false;
fofs = fdef->ofs;
type = fdef->type;
ed = PROG_TO_EDICT(progfuncs, val->_int);
if (!ed)
return false;
if (fofs < 0 || fofs >= (int)prinst.max_fields_size)
return false;
val = (eval_t *) (((char *)ed->fields) + fofs*4);
}
*rettype = type;
*result = val;
return true;
}
pbool PDECL PR_SetWatchPoint(pubprogfuncs_t *ppf, char *key)
{
progfuncs_t *progfuncs = (progfuncs_t *)ppf;
eval_t *val;
eval_t fakeval;
etype_t type;
if (!key)
{
free(prinst.watch_name);
prinst.watch_name = NULL;
prinst.watch_ptr = NULL;
prinst.watch_type = ev_void;
return false;
}
if (!LocateDebugTerm(progfuncs, key, &val, &type, &fakeval))
{
printf("Unable to evaluate watch term \"%s\"\n", key);
return false;
}
if (val == &fakeval)
{
printf("Do you like watching paint dry?\n");
return false;
}
if (type == ev_vector)
{
printf("Unable to watch vectors. Watching the x field instead.\n");
type = ev_float;
}
free(prinst.watch_name);
prinst.watch_name = strdup(key);
prinst.watch_ptr = val;
prinst.watch_old = *prinst.watch_ptr;
prinst.watch_type = type;
return true;
}
static char *PR_ParseCast(char *key, etype_t *t, pbool *isptr)
{
extern char *basictypenames[];
int type;
*t = ev_void;
*isptr = false;
while(*key == ' ')
key++;
if (*key == '(')
{
key++;
for (type = 0; type < 10; type++)
{
if (!strncmp(key, basictypenames[type], strlen(basictypenames[type])))
{
key += strlen(basictypenames[type]);
while(*key == ' ')
key++;
if (*key == '*')
{
*isptr = true;
key++;
}
*t = type;
break;
}
}
if (type == 10)
return NULL;
while(*key == ' ')
key++;
if (*key++ != ')')
return NULL;
}
return key;
}
char *PDECL PR_EvaluateDebugString(pubprogfuncs_t *ppf, char *key)
{
progfuncs_t *progfuncs = (progfuncs_t*)ppf;
static char buf[8192];
fdef_t *fdef;
eval_t *val;
char *assignment;
etype_t type;
eval_t fakeval;
extern char *basictypenames[];
if (*key == '*')
{
int ptr;
eval_t v;
etype_t cast;
pbool isptr;
type = ev_void;
key = PR_ParseCast(key+1, &cast, &isptr);
if (!key || !isptr)
return "(unable to evaluate)";
if (*key == '&')
{
if (!LocateDebugTerm(progfuncs, key+1, &val, &type, &fakeval) && val != &fakeval)
return "(unable to evaluate)";
v._int = (char*)val - progfuncs->funcs.stringtable;
val = &v;
type = ev_pointer;
}
else
{
if (!LocateDebugTerm(progfuncs, key, &val, &type, &fakeval) && val != &fakeval)
return "(unable to evaluate)";
}
if (type == ev_integer || type == ev_string || type == ev_pointer)
ptr = val->_int;
else if (type == ev_float)
ptr = val->_float;
else
return "(unable to evaluate)";
return PR_ValueString(progfuncs, cast, (eval_t*)(progfuncs->funcs.stringtable + ptr), true);
}
if (*key == '&')
{
if (!LocateDebugTerm(progfuncs, key+1, &val, &type, &fakeval) && val != &fakeval)
return "(unable to evaluate)";
QC_snprintfz(buf, sizeof(buf), "(%s*)%#x", ((type>=10)?"???":basictypenames[type]), (char*)val - progfuncs->funcs.stringtable);
return buf;
}
assignment = strchr(key, '=');
if (assignment)
*assignment = '\0';
if (!LocateDebugTerm(progfuncs, key, &val, &type, &fakeval))
return "(unable to evaluate)";
/*
c = strchr(key, '.');
if (c) *c = '\0';
def = ED_FindLocalOrGlobal(progfuncs, key, &val);
if (!def)
{
if (atoi(key))
{
def = &fakedef;
def->ofs = 0;
def->type = ev_entity;
val = &fakeval;
val->edict = atoi(key);
}
}
if (c) *c = '.';
if (!def)
{
return "(Bad string)";
}
type = def->type;
//go through ent vars
c = strchr(key, '.');
while(c)
{
c2 = c+1;
c = strchr(c2, '.');
type = type &~DEF_SAVEGLOBAL;
if (current_progstate && current_progstate->types)
type = current_progstate->types[type].type;
if (type != ev_entity)
return "'.' without entity";
if (c)*c = '\0';
fdef = ED_FindField(progfuncs, COM_TrimString(c2));
if (c)*c = '.';
if (!fdef)
return "(Bad string)";
ed = PROG_TO_EDICT(progfuncs, val->_int);
if (!ed)
return "(Invalid Entity)";
val = (eval_t *) (((char *)ed->fields) + fdef->ofs*4);
type = fdef->type;
}
*/
if (assignment)
{
char *str = assignment+1;
while(*str == ' ')
str++;
switch (type&~DEF_SAVEGLOBAL)
{
case ev_string:
#ifdef QCGC
*(string_t *)val = PR_AllocTempString(&progfuncs->funcs, str);
#else
*(string_t *)val = PR_StringToProgs(&progfuncs->funcs, ED_NewString (&progfuncs->funcs, assignment, 0, true));
#endif
break;
case ev_float:
if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
*(float*)val = strtoul(str, NULL, 0);
else
*(float *)val = (float)atof (str);
break;
case ev_integer:
*(int *)val = atoi (str);
break;
case ev_vector:
{
int i;
if (*str == '\'')
str++;
for (i = 0; i < 3; i++)
{
while(*str == ' ' || *str == '\t')
str++;
((float *)val)[i] = strtod(str, &str);
}
while(*str == ' ' || *str == '\t')
str++;
if (*str == '\'')
str++;
}
break;
case ev_entity:
if (!EDICT_NUM(progfuncs, atoi (str)))
return "(invalid entity)";
*(int *)val = EDICT_TO_PROG(progfuncs, EDICT_NUM(progfuncs, atoi (str)));
break;
case ev_field:
fdef = ED_FindField (progfuncs, str);
if (!fdef)
{
size_t l,nl = strlen(str);
*assignment = '=';
strcpy(buf, "Can't find field ");
l = strlen(buf);
if (nl > sizeof(buf)-l-2)
nl = sizeof(buf)-l-2;
memcpy(buf+l, str, nl);
buf[l+nl+1] = 0;
return buf;
}
*(int *)val = G_INT(fdef->ofs);
break;
case ev_function:
{
mfunction_t *func;
int i;
int progsnum = -1;
if (str[0] && str[1] == ':')
{
progsnum = atoi(str);
str+=2;
}
else if (str[0] && str[1] && str[2] == ':')
{
progsnum = atoi(str);
str+=3;
}
func = ED_FindFunction (progfuncs, str, &i, progsnum);
if (!func)
{
size_t l,nl = strlen(str);
*assignment = '=';
strcpy(buf, "Can't find field ");
l = strlen(buf);
if (nl > sizeof(buf)-l-2)
nl = sizeof(buf)-l-2;
memcpy(buf+l, str, nl);
buf[l+nl+1] = 0;
return buf;
}
*(func_t *)val = (func - pr_progstate[i].functions) | (i<<24);
}
break;
default:
break;
}
*assignment = '=';
}
QC_snprintfz(buf, sizeof(buf), "%s", PR_ValueString(progfuncs, type, val, true));
return buf;
}
//int EditorHighlightLine(window_t *wnd, int line);
void SetExecutionToLine(progfuncs_t *progfuncs, int linenum)
{
int pn = prinst.pr_typecurrent;
int snum;
const mfunction_t *f = pr_xfunction;
switch(current_progstate->structtype)
{
case PST_DEFAULT:
case PST_QTEST:
for (snum = f->first_statement; pr_progstate[pn].linenums[snum] < linenum; snum++)
{
if (pr_statements16[snum].op == OP_DONE)
return;
}
break;
case PST_KKQWSV:
case PST_FTE32:
for (snum = f->first_statement; pr_progstate[pn].linenums[snum] < linenum; snum++)
{
if (pr_statements32[snum].op == OP_DONE)
return;
}
break;
default:
Sys_Error("Bad struct type");
snum = 0;
}
prinst.debugstatement = snum;
// EditorHighlightLine(editwnd, pr_progstate[pn].linenums[snum]);
}
//0 clear. 1 set, 2 toggle, 3 check
int PDECL PR_ToggleBreakpoint(pubprogfuncs_t *ppf, char *filename, int linenum, int flag) //write alternate route to work by function name.
{
progfuncs_t *progfuncs = (progfuncs_t*)ppf;
int ret=0;
unsigned int fl;
unsigned int i;
int pn = prinst.pr_typecurrent;
mfunction_t *f;
int op = 0; //warning about not being initialized before use
for (pn = 0; (unsigned)pn < prinst.maxprogs; pn++)
{
if (!pr_progstate || !pr_progstate[pn].progs)
continue;
if (linenum) //linenum is set means to set the breakpoint on a file and line
{
if (!pr_progstate[pn].linenums)
continue;
//we need to use the function table in order to set breakpoints in the right file.
for (f = pr_progstate[pn].functions, fl = 0; fl < pr_progstate[pn].progs->numfunctions; f++, fl++)
{
if (!stricmp(f->s_file+progfuncs->funcs.stringtable, filename))
{
for (i = f->first_statement; i < pr_progstate[pn].progs->numstatements; i++)
{
if (pr_progstate[pn].linenums[i] >= linenum)
{
fl = pr_progstate[pn].linenums[i];
for (; ; i++)
{
if ((unsigned int)pr_progstate[pn].linenums[i] > fl)
break;
switch(pr_progstate[pn].structtype)
{
case PST_DEFAULT:
case PST_QTEST:
op = ((dstatement16_t*)pr_progstate[pn].statements + i)->op;
break;
case PST_KKQWSV:
case PST_FTE32:
op = ((dstatement32_t*)pr_progstate[pn].statements + i)->op;
break;
default:
Sys_Error("Bad structtype");
op = 0;
}
switch (flag)
{
default:
if (op & 0x8000)
{
op &= ~0x8000;
ret = false;
flag = 0;
}
else
{
op |= 0x8000;
ret = true;
flag = 1;
}
break;
case 0:
op &= ~0x8000;
ret = false;
break;
case 1:
op |= 0x8000;
ret = true;
break;
case 3:
if (op & 0x8000)
return true;
}
switch(pr_progstate[pn].structtype)
{
case PST_DEFAULT:
case PST_QTEST:
((dstatement16_t*)pr_progstate[pn].statements + i)->op = op;
break;
case PST_KKQWSV:
case PST_FTE32:
((dstatement32_t*)pr_progstate[pn].statements + i)->op = op;
break;
default:
Sys_Error("Bad structtype");
op = 0;
}
if (ret) //if its set, only set one breakpoint statement, not all of them.
return true;
}
goto cont;
}
}
}
}
}
else //set the breakpoint on the first statement of the function specified.
{
for (f = pr_progstate[pn].functions, fl = 0; fl < pr_progstate[pn].progs->numfunctions; f++, fl++)
{
if (!strcmp(f->s_name+progfuncs->funcs.stringtable, filename))
{
i = f->first_statement;
switch(pr_progstate[pn].structtype)
{
case PST_DEFAULT:
case PST_QTEST:
op = ((dstatement16_t*)pr_progstate[pn].statements + i)->op;
break;
case PST_KKQWSV:
case PST_FTE32:
op = ((dstatement32_t*)pr_progstate[pn].statements + i)->op;
break;
default:
Sys_Error("Bad structtype");
}
switch (flag)
{
default:
if (op & 0x8000)
{
op &= ~0x8000;
ret = false;
flag = 0;
}
else
{
op |= 0x8000;
ret = true;
flag = 1;
}
break;
case 0:
op &= ~0x8000;
ret = false;
break;
case 1:
op |= 0x8000;
ret = true;
break;
case 3:
if (op & 0x8000)
return true;
}
switch(pr_progstate[pn].structtype)
{
case PST_DEFAULT:
case PST_QTEST:
((dstatement16_t*)pr_progstate[pn].statements + i)->op = op;
break;
case PST_KKQWSV:
case PST_FTE32:
((dstatement32_t*)pr_progstate[pn].statements + i)->op = op;
break;
default:
Sys_Error("Bad structtype");
}
break;
}
}
}
cont:
continue;
}
return ret;
}
int ShowStep(progfuncs_t *progfuncs, int statement, char *fault, pbool fatal)
{
// return statement;
// texture realcursortex;
static int lastline = 0;
static int ignorestatement = 0; //
static const char *lastfile = 0;
int pn = prinst.pr_typecurrent;
int i;
const mfunction_t *f = pr_xfunction;
int faultline;
int debugaction;
pr_xstatement = statement;
if (!externs->useeditor)
{
PR_PrintStatement(progfuncs, statement);
if (fatal)
progfuncs->funcs.debug_trace = DEBUG_TRACE_ABORT;
return statement;
}
if (f && externs->useeditor)
{
for(;;) //for DEBUG_TRACE_NORESUME handling
{
if (pr_progstate[pn].linenums)
{
if (lastline == pr_progstate[pn].linenums[statement] && lastfile == f->s_file+progfuncs->funcs.stringtable && statement == ignorestatement && !fault)
{
ignorestatement++;
return statement; //no info/same line as last time
}
lastline = pr_progstate[pn].linenums[statement];
}
else
lastline = -1;
lastfile = PR_StringToNative(&progfuncs->funcs, f->s_file);
faultline = lastline;
debugaction = externs->useeditor(&progfuncs->funcs, lastfile, ((lastline>0)?&lastline:NULL), &statement, fault, fatal);
//if they changed the line to execute, we need to find a statement that is on that line
if (lastline && faultline != lastline)
{
switch(pr_progstate[pn].structtype)
{
case PST_FTE32:
case PST_KKQWSV:
{
dstatement32_t *st = pr_progstate[pn].statements;
unsigned int *lnos = pr_progstate[pn].linenums;
for (i = f->first_statement; ; i++)
{
if (lastline == lnos[i])
{
statement = i;
break;
}
else if (lastline <= lnos[i])
break;
else if (st[i].op == OP_DONE)
break;
}
}
break;
case PST_DEFAULT:
case PST_QTEST:
{
dstatement16_t *st = pr_progstate[pn].statements;
unsigned int *lnos = pr_progstate[pn].linenums;
for (i = f->first_statement; ; i++)
{
if (lastline == lnos[i])
{
statement = i;
break;
}
else if (lastline <= lnos[i])
break;
else if (st[i].op == OP_DONE)
break;
}
}
}
}
if (debugaction == DEBUG_TRACE_NORESUME)
continue;
else if(debugaction == DEBUG_TRACE_ABORT)
progfuncs->funcs.parms->Abort ("Debugger Abort");
else if (debugaction == DEBUG_TRACE_OFF)
{
//if we're resuming, don't hit any lingering step-over triggers
progfuncs->funcs.debug_trace = DEBUG_TRACE_OFF;
for (i = 0; i < pr_depth; i++)
pr_stack[pr_depth-1].stepping = DEBUG_TRACE_OFF;
}
else if (debugaction == DEBUG_TRACE_OUT)
{
//clear tracing for now, but ensure that it'll be reactivated once we reach the caller (if from qc)
progfuncs->funcs.debug_trace = DEBUG_TRACE_OFF;
if (pr_depth)
pr_stack[pr_depth-1].stepping = DEBUG_TRACE_INTO;
}
else //some other debug action. maybe resume.
progfuncs->funcs.debug_trace = debugaction;
break;
}
}
else if (f) //annoying.
{
if (*(f->s_file+progfuncs->funcs.stringtable)) //if we can't get the filename, then it was stripped, and debugging it like this is useless
if (externs->useeditor)
externs->useeditor(&progfuncs->funcs, f->s_file+progfuncs->funcs.stringtable, NULL, NULL, fault, fatal);
return statement;
}
ignorestatement = statement+1;
return statement;
}
//called by the qcvm when executing some statement that cannot be execed.
int PR_HandleFault (pubprogfuncs_t *ppf, char *error, ...)
{
progfuncs_t *progfuncs = (progfuncs_t *)ppf;
va_list argptr;
char string[1024];
int resumestatement;
va_start (argptr,error);
Q_vsnprintf (string,sizeof(string)-1, error,argptr);
va_end (argptr);
PR_StackTrace (ppf, true);
ppf->parms->Printf ("%s\n", string);
resumestatement = ShowStep(progfuncs, pr_xstatement, string, true);
if (resumestatement == 0)
{
PR_AbortStack(ppf);
return prinst.continuestatement;
// ppf->parms->Abort ("%s", string);
}
return resumestatement;
}
/*
============
PR_RunError
Aborts the currently executing function
============
*/
void VARGS PR_RunError (pubprogfuncs_t *progfuncs, char *error, ...)
{
va_list argptr;
char string[1024];
va_start (argptr,error);
Q_vsnprintf (string,sizeof(string)-1, error,argptr);
va_end (argptr);
// PR_PrintStatement (pr_statements + pr_xstatement);
PR_StackTrace (progfuncs, true);
progfuncs->parms->Printf ("\n");
//editbadfile(pr_strings + pr_xfunction->s_file, -1);
progfuncs->parms->Abort ("%s", string);
}
pbool PR_RunWarning (pubprogfuncs_t *ppf, char *error, ...)
{
progfuncs_t *progfuncs = (progfuncs_t *)ppf;
va_list argptr;
char string[1024];
va_start (argptr,error);
Q_vsnprintf (string,sizeof(string)-1, error,argptr);
va_end (argptr);
progfuncs->funcs.parms->Printf ("%s", string);
if (pr_depth != 0)
PR_StackTrace (ppf, false);
if (progfuncs->funcs.debug_trace == 0)
{
progfuncs->funcs.debug_trace = DEBUG_TRACE_INTO;
return true;
}
return false;
}
static pbool PR_ExecRunWarning (pubprogfuncs_t *ppf, int xstatement, char *error, ...)
{
progfuncs_t *progfuncs = (progfuncs_t *)ppf;
va_list argptr;
char string[1024];
pr_xstatement = xstatement;
va_start (argptr,error);
Q_vsnprintf (string,sizeof(string)-1, error,argptr);
va_end (argptr);
progfuncs->funcs.parms->Printf ("%s", string);
if (pr_depth != 0)
PR_StackTrace (ppf, false);
if (progfuncs->funcs.debug_trace == 0)
{
pr_xstatement = ShowStep(progfuncs, xstatement, error, false);
return true;
}
return false;
}
//For debugging. Assumes classname field exists.
const char *PR_GetEdictClassname(progfuncs_t *progfuncs, int edict)
{
fdef_t *cnfd = ED_FindField(progfuncs, "classname");
if (cnfd && edict < prinst.maxedicts)
{
string_t *v = (string_t *)((char *)edvars(PROG_TO_EDICT(progfuncs, edict)) + cnfd->ofs*4);
return PR_StringToNative(&progfuncs->funcs, *v);
}
return "";
}
static pbool casecmp_f(progfuncs_t *progfuncs, eval_t *ref, eval_t *val) {return ref->_float == val->_float;}
static pbool casecmp_i(progfuncs_t *progfuncs, eval_t *ref, eval_t *val) {return ref->_int == val->_int;}
static pbool casecmp_v(progfuncs_t *progfuncs, eval_t *ref, eval_t *val) {return ref->_vector[0] == val->_vector[0] &&
ref->_vector[1] == val->_vector[1] &&
ref->_vector[2] == val->_vector[2];}
static pbool casecmp_s(progfuncs_t *progfuncs, eval_t *ref, eval_t *val) { const char *refs = PR_StringToNative(&progfuncs->funcs, ref->string);
const char *vals = PR_StringToNative(&progfuncs->funcs, val->string);
return !strcmp(refs, vals);}
static pbool casecmprange_f(progfuncs_t *progfuncs, eval_t *ref, eval_t *min, eval_t *max) {return ref->_float >= min->_float && ref->_float <= max->_float;}
static pbool casecmprange_i(progfuncs_t *progfuncs, eval_t *ref, eval_t *min, eval_t *max) {return ref->_int >= min->_int && ref->_int <= max->_int;}
static pbool casecmprange_v(progfuncs_t *progfuncs, eval_t *ref, eval_t *min, eval_t *max) {return ref->_vector[0] >= min->_vector[0] && ref->_vector[0] <= max->_vector[0] &&
ref->_vector[1] >= min->_vector[1] && ref->_vector[1] <= max->_vector[1] &&
ref->_vector[2] >= min->_vector[2] && ref->_vector[2] <= max->_vector[2];}
static pbool casecmprange_bad(progfuncs_t *progfuncs, eval_t *ref, eval_t *min, eval_t *max){ PR_RunError (&progfuncs->funcs, "OP_CASERANGE type not supported");//BUG: pr_xstatement will not be correct.
return false;}
typedef pbool (*casecmp_t)(progfuncs_t *progfuncs, eval_t *ref, eval_t *val);
typedef pbool (*casecmprange_t)(progfuncs_t *progfuncs, eval_t *ref, eval_t *min, eval_t *max);
static casecmp_t casecmp[] =
{
casecmp_f, //float
casecmp_v, //vector
casecmp_s, //string
casecmp_i, //ent
casecmp_i //func
//pointer, field, int, etc are emulated with func or something. I dunno
};
static casecmprange_t casecmprange[] =
{
casecmprange_f, //float
casecmprange_v, //vector - I'm using a bbox, not really sure what it should be
casecmprange_bad, //string - should it use stof? string ranges don't relly make sense, at all.
casecmprange_i, //ent - doesn't really make sense, but as ints/pointers/fields/etc might be emulated with this, allow it anyway, as an int type.
casecmprange_i //func
};
#define RUNAWAYCHECK() \
if (!--*runaway) \
{ \
pr_xstatement = st-pr_statements; \
PR_RunError (&progfuncs->funcs, "runaway loop error\n");\
PR_StackTrace(&progfuncs->funcs,false); \
printf ("runaway loop error\n"); \
while(pr_depth > prinst.exitdepth) \
PR_LeaveFunction(progfuncs); \
prinst.spushed = 0; \
return -1; \
}
static int PR_ExecuteCode16 (progfuncs_t *fte_restrict progfuncs, int s, int *fte_restrict runaway)
{
unsigned int switchcomparison = 0;
const dstatement16_t *fte_restrict st;
mfunction_t *fte_restrict newf;
int i;
edictrun_t *ed;
eval_t *ptr;
float *fte_restrict glob = pr_globals;
float tmpf;
int tmpi;
unsigned short op;
eval_t *switchref = (eval_t*)glob;
unsigned int num_edicts = sv_num_edicts;
#define OPA ((eval_t *)&glob[st->a])
#define OPB ((eval_t *)&glob[st->b])
#define OPC ((eval_t *)&glob[st->c])
#define INTSIZE 16
st = &pr_statements16[s];
while (progfuncs->funcs.debug_trace || prinst.watch_ptr || prinst.profiling)
{
#ifdef FTE_TARGET_WEB
cont16:
reeval16:
//this can generate huge functions, so disable it on systems that can't realiably cope with such things (IE initiates an unwanted denial-of-service attack when pointed our javascript, and firefox prints a warning too)
pr_xstatement = st-pr_statements16;
char *stack = malloc(4*1024); //this'll leak, but whatever, we're dead anyway.
int ofs;
strcpy(stack, "This platform does not support QC debugging\nStack Trace:");
ofs = strlen(stack);
PR_SaveCallStack (progfuncs, stack, &ofs, 4*1024);
PR_RunError (&progfuncs->funcs, stack);
free(stack);
return -1;
#else
#define DEBUGABLE
#ifdef SEPARATEINCLUDES
#include "execloop16d.h"
#else
#include "execloop.h"
#endif
#undef DEBUGABLE
#endif
}
while(1)
{
#include "execloop.h"
}
#undef INTSIZE
}
static int PR_ExecuteCode32 (progfuncs_t *fte_restrict progfuncs, int s, int *fte_restrict runaway)
{
#ifdef FTE_TARGET_WEB
//this can generate huge functions, so disable it on systems that can't realiably cope with such things (IE initiates an unwanted denial-of-service attack when pointed our javascript, and firefox prints a warning too)
pr_xstatement = s;
PR_RunError (&progfuncs->funcs, "32bit qc statement support was disabled for this platform.\n");
PR_StackTrace(&progfuncs->funcs, false);
return -1;
#else
unsigned int switchcomparison = 0;
const dstatement32_t *fte_restrict st;
mfunction_t *fte_restrict newf;
int i;
edictrun_t *ed;
eval_t *ptr;
float *fte_restrict glob = pr_globals;
float tmpf;
int tmpi;
eval_t *switchref = (eval_t*)glob;
unsigned int num_edicts = sv_num_edicts;
unsigned int op;
#define OPA ((eval_t *)&glob[st->a])
#define OPB ((eval_t *)&glob[st->b])
#define OPC ((eval_t *)&glob[st->c])
#define INTSIZE 32
st = &pr_statements32[s];
while (progfuncs->funcs.debug_trace || prinst.watch_ptr || prinst.profiling)
{
#define DEBUGABLE
#ifdef SEPARATEINCLUDES
#include "execloop32d.h"
#else
#include "execloop.h"
#endif
#undef DEBUGABLE
}
while(1)
{
#ifdef SEPARATEINCLUDES
#include "execloop32.h"
#else
#include "execloop.h"
#endif
}
#undef INTSIZE
#endif
}
/*
====================
PR_ExecuteProgram
====================
*/
static void PR_ExecuteCode (progfuncs_t *progfuncs, int s)
{
int runaway;
if (prinst.watch_ptr && prinst.watch_ptr->_int != prinst.watch_old._int)
{
switch(prinst.watch_type)
{
case ev_float:
printf("Watch point \"%s\" changed by engine from %g to %g.\n", prinst.watch_name, prinst.watch_old._float, prinst.watch_ptr->_float);
break;
case ev_vector:
printf("Watch point \"%s\" changed by engine from '%g %g %g' to '%g %g %g'.\n", prinst.watch_name, prinst.watch_old._vector[0], prinst.watch_old._vector[1], prinst.watch_old._vector[2], prinst.watch_ptr->_vector[0], prinst.watch_ptr->_vector[1], prinst.watch_ptr->_vector[2]);
break;
default:
printf("Watch point \"%s\" changed by engine from %i to %i.\n", prinst.watch_name, prinst.watch_old._int, prinst.watch_ptr->_int);
break;
case ev_entity:
printf("Watch point \"%s\" changed by engine from %i(%s) to %i(%s).\n", prinst.watch_name, prinst.watch_old._int, PR_GetEdictClassname(progfuncs, prinst.watch_old._int), prinst.watch_ptr->_int, PR_GetEdictClassname(progfuncs, prinst.watch_ptr->_int));
break;
case ev_function:
case ev_string:
printf("Watch point \"%s\" set by engine to %s.\n", prinst.watch_name, PR_ValueString(progfuncs, prinst.watch_type, prinst.watch_ptr, false));
break;
}
prinst.watch_old = *prinst.watch_ptr;
//we can't dump stack or anything, as we don't really know the stack frame that it happened in.
//stop watching
// prinst->watch_ptr = NULL;
}
prinst.continuestatement = -1;
#ifdef QCJIT
if (current_progstate->jit)
{
PR_EnterJIT(progfuncs, current_progstate->jit, s);
return;
}
#endif
runaway = 100000000;
for(;;)
{
switch (current_progstate->structtype)
{
case PST_DEFAULT:
case PST_QTEST:
s = PR_ExecuteCode16(progfuncs, s, &runaway);
if (s == -1)
return;
continue;
case PST_KKQWSV:
case PST_FTE32:
s = PR_ExecuteCode32(progfuncs, s, &runaway);
if (s == -1)
return;
continue;
default:
Sys_Error("PR_ExecuteProgram - bad structtype");
}
}
}
void PDECL PR_ExecuteProgram (pubprogfuncs_t *ppf, func_t fnum)
{
progfuncs_t *progfuncs = (progfuncs_t*)ppf;
mfunction_t *f;
int i;
unsigned int initial_progs;
int oldexitdepth;
int s;
#ifndef QCGC
int tempdepth;
#endif
unsigned int newprogs = (fnum & 0xff000000)>>24;
initial_progs = prinst.pr_typecurrent;
if (newprogs != initial_progs)
{
if (newprogs >= prinst.maxprogs || !&pr_progstate[newprogs].globals) //can happen with hexen2...
{
printf("PR_ExecuteProgram: tried branching into invalid progs\n");
return;
}
PR_SwitchProgsParms(progfuncs, newprogs);
}
if (!(fnum & ~0xff000000) || (signed)(fnum & ~0xff000000) >= pr_progs->numfunctions)
{
// if (pr_global_struct->self)
// ED_Print (PROG_TO_EDICT(pr_global_struct->self));
#if defined(__GNUC__) && !defined(FTE_TARGET_WEB)
printf("PR_ExecuteProgram: NULL function from exe (address %p)\n", __builtin_return_address(0));
#else
printf("PR_ExecuteProgram: NULL function from exe\n");
#endif
// Host_Error ("PR_ExecuteProgram: NULL function from exe");
// PR_MoveParms(0, pr_typecurrent);
PR_SwitchProgs(progfuncs, initial_progs);
return;
}
oldexitdepth = prinst.exitdepth;
f = &pr_cp_functions[fnum & ~0xff000000];
if (f->first_statement < 0)
{ // negative statements are built in functions
i = -f->first_statement;
if (i < externs->numglobalbuiltins)
(*externs->globalbuiltins[i]) (&progfuncs->funcs, (struct globalvars_s *)current_progstate->globals);
else
{
printf ("Bad builtin call number %i (from exe)\n", -f->first_statement);
// PR_MoveParms(p, pr_typecurrent);
PR_SwitchProgs(progfuncs, initial_progs);
}
PR_SwitchProgsParms(progfuncs, initial_progs);
return;
}
//forget about any tracing if its active. control returning to the engine should not look like its calling some random function.
progfuncs->funcs.debug_trace = 0;
// make a stack frame
prinst.exitdepth = pr_depth;
s = PR_EnterFunction (progfuncs, f, initial_progs);
#ifndef QCGC
tempdepth = prinst.numtempstringsstack;
#endif
PR_ExecuteCode(progfuncs, s);
PR_SwitchProgsParms(progfuncs, initial_progs);
#ifndef QCGC
PR_FreeTemps(progfuncs, tempdepth);
prinst.numtempstringsstack = tempdepth;
#else
if (!pr_depth)
PR_RunGC(progfuncs);
#endif
prinst.exitdepth = oldexitdepth;
}
typedef struct {
int fnum;
int progsnum;
int statement;
} qcthreadstack_t;
typedef struct qcthread_s {
int fstackdepth;
qcthreadstack_t fstack[MAX_STACK_DEPTH];
int lstackused;
int lstack[LOCALSTACK_SIZE];
int xstatement;
int xfunction;
progsnum_t xprogs;
} qcthread_t;
struct qcthread_s *PDECL PR_ForkStack(pubprogfuncs_t *ppf)
{ //QC code can call builtins that call qc code.
//to get around the problems of restoring the builtins we simply don't save the thread over the builtin.
progfuncs_t *progfuncs = (progfuncs_t*)ppf;
int i, l;
int ed = prinst.exitdepth;
int localsoffset, baselocalsoffset;
qcthread_t *thread = externs->memalloc(sizeof(qcthread_t));
const mfunction_t *f;
//copy out the functions stack.
for (i = 0,localsoffset=0; i < ed; i++)
{
if (i+1 == pr_depth)
f = pr_xfunction;
else
f = pr_stack[i+1].f;
localsoffset += f->locals; //this is where it crashes
}
baselocalsoffset = localsoffset;
for (i = ed; i < pr_depth; i++)
{
thread->fstack[i-ed].fnum = pr_stack[i].f - pr_progstate[pr_stack[i].progsnum].functions;
thread->fstack[i-ed].progsnum = pr_stack[i].progsnum;
thread->fstack[i-ed].statement = pr_stack[i].s;
if (i+1 == pr_depth)
f = pr_xfunction;
else
f = pr_stack[i+1].f;
localsoffset += f->locals;
}
thread->fstackdepth = pr_depth - ed;
for (i = pr_depth - 1; i >= ed ; i--)
{
if (i+1 == pr_depth)
f = pr_xfunction;
else
f = pr_stack[i+1].f;
localsoffset -= f->locals;
for (l = 0; l < f->locals; l++)
{
thread->lstack[localsoffset-baselocalsoffset + l ] = ((int *)pr_globals)[f->parm_start + l];
((int *)pr_globals)[f->parm_start + l] = prinst.localstack[localsoffset+l]; //copy the old value into the globals (so the older functions have the correct locals.
}
}
for (i = ed; i < pr_depth ; i++) //we need to get the locals back to how they were.
{
if (i+1 == pr_depth)
f = pr_xfunction;
else
f = pr_stack[i+1].f;
for (l = 0; l < f->locals; l++)
{
((int *)pr_globals)[f->parm_start + l] = thread->lstack[localsoffset-baselocalsoffset + l];
}
localsoffset += f->locals;
}
thread->lstackused = localsoffset - baselocalsoffset;
thread->xstatement = pr_xstatement;
thread->xfunction = pr_xfunction - pr_progstate[prinst.pr_typecurrent].functions;
thread->xprogs = prinst.pr_typecurrent;
return thread;
}
void PDECL PR_ResumeThread (pubprogfuncs_t *ppf, struct qcthread_s *thread)
{
progfuncs_t *progfuncs = (progfuncs_t*)ppf;
mfunction_t *f, *oldf;
int i,l,ls;
progsnum_t initial_progs;
int oldexitdepth;
int s;
#ifndef QCGC
int tempdepth;
#endif
progsnum_t prnum = thread->xprogs;
int fnum = thread->xfunction;
if (prinst.localstack_used + thread->lstackused > LOCALSTACK_SIZE)
PR_RunError(&progfuncs->funcs, "Too many locals on resumtion of QC thread\n");
if (pr_depth + thread->fstackdepth > MAX_STACK_DEPTH)
PR_RunError(&progfuncs->funcs, "Too large stack on resumtion of QC thread\n");
//do progs switching stuff as appropriate. (fteqw only)
initial_progs = prinst.pr_typecurrent;
PR_SwitchProgsParms(progfuncs, prnum);
oldexitdepth = prinst.exitdepth;
prinst.exitdepth = pr_depth;
ls = 0;
//add on the callstack.
for (i = 0; i < thread->fstackdepth; i++)
{
if (pr_depth == prinst.exitdepth)
{
pr_stack[pr_depth].f = pr_xfunction;
pr_stack[pr_depth].s = pr_xstatement;
pr_stack[pr_depth].progsnum = initial_progs;
}
else
{
pr_stack[pr_depth].progsnum = thread->fstack[i].progsnum;
pr_stack[pr_depth].f = pr_progstate[thread->fstack[i].progsnum].functions + thread->fstack[i].fnum;
pr_stack[pr_depth].s = thread->fstack[i].statement;
}
if (i+1 == thread->fstackdepth)
f = &pr_cp_functions[fnum];
else
f = pr_progstate[thread->fstack[i+1].progsnum].functions + thread->fstack[i+1].fnum;
for (l = 0; l < f->locals; l++)
{
prinst.localstack[prinst.localstack_used++] = ((int *)pr_globals)[f->parm_start + l];
((int *)pr_globals)[f->parm_start + l] = thread->lstack[ls++];
}
pr_depth++;
}
if (ls != thread->lstackused)
PR_RunError(&progfuncs->funcs, "Thread stores incorrect locals count\n");
f = &pr_cp_functions[fnum];
// thread->lstackused -= f->locals; //the current function is the odd one out.
//add on the locals stack
memcpy(prinst.localstack+prinst.localstack_used, thread->lstack, sizeof(int)*thread->lstackused);
prinst.localstack_used += thread->lstackused;
//bung the locals of the current function on the stack.
// for (i=0 ; i < f->locals ; i++)
// ((int *)pr_globals)[f->parm_start + i] = 0xff00ff00;//thread->lstack[thread->lstackused+i];
// PR_EnterFunction (progfuncs, f, initial_progs);
oldf = pr_xfunction;
pr_xfunction = f;
s = thread->xstatement;
#ifndef QCGC
tempdepth = prinst.numtempstringsstack;
#endif
PR_ExecuteCode(progfuncs, s);
PR_SwitchProgsParms(progfuncs, initial_progs);
#ifndef QCGC
PR_FreeTemps(progfuncs, tempdepth);
prinst.numtempstringsstack = tempdepth;
#endif
prinst.exitdepth = oldexitdepth;
pr_xfunction = oldf;
}
void PDECL PR_AbortStack (pubprogfuncs_t *ppf)
{
progfuncs_t *progfuncs = (progfuncs_t*)ppf;
while(pr_depth > prinst.exitdepth+1)
PR_LeaveFunction(progfuncs);
prinst.continuestatement = 0;
}
pbool PDECL PR_GetBuiltinCallInfo (pubprogfuncs_t *ppf, int *builtinnum, char *function, size_t sizeoffunction)
{
progfuncs_t *progfuncs = (progfuncs_t*)ppf;
int st = pr_xstatement;
int op;
int a;
const char *fname;
switch (current_progstate->structtype)
{
case PST_DEFAULT:
case PST_QTEST:
op = pr_statements16[st].op;
a = pr_statements16[st].a;
break;
case PST_KKQWSV:
case PST_FTE32:
op = pr_statements32[st].op;
a = pr_statements32[st].a;
break;
}
*builtinnum = 0;
*function = 0;
if ((op >= OP_CALL0 && op <= OP_CALL8) || (op >= OP_CALL1H && op <= OP_CALL8H))
{
a = ((eval_t *)&pr_globals[a])->function;
*builtinnum = -current_progstate->functions[a].first_statement;
fname = PR_StringToNative(ppf, current_progstate->functions[a].s_name);
strncpy(function, fname, sizeoffunction-1);
function[sizeoffunction-1] = 0;
return true;
}
return false;
}
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