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/* globals.c
*
* COPYRIGHT (c) 1993 by AT&T Bell Laboratories.
*
*/
#include "ml-base.h"
#include "machine-id.h"
#include "ml-values.h"
#include "tags.h"
#include "ml-globals.h"
#include "ml-objects.h"
#include "ml-limits.h"
#include "c-globals-tbl.h"
#ifdef SIZES_C64_ML32
void PatchAddrs ();
#endif
#ifndef SIZES_C64_ML32
typedef struct {
ml_val_t desc;
char *s;
ml_val_t len;
} ml_string_t;
#define ML_STRING(id, s) \
ml_string_t id = { \
DESC_string, \
s, \
INT_CtoML(sizeof(s)-1) \
}
/* Exceptions are identified by (string ref) values */
#define ML_EXNID(ex,name) \
ML_STRING(CONCAT(ex,_s), name); \
ml_val_t CONCAT(ex,_id0) [2] = { \
DESC_ref, \
PTR_CtoML(&(CONCAT(ex,_s).s)) \
}
#define ASM_CLOSURE(name) \
extern ml_val_t CONCAT(name,_a)[]; \
ml_val_t CONCAT(name,_v)[2] = { \
MAKE_DESC(1,DTAG_record), \
PTR_CtoML(CONCAT(name,_a)) \
}
#else /* SIZES_C64_ML32 */
/* When the size of Addr_t is bigger than the size of an Word_t, we need
* to dynamically patch the static ML objects.
*/
typedef struct {
ml_val_t desc;
ml_val_t s;
ml_val_t len;
} ml_string_t;
#define ML_STRING(id,s) \
PVT char CONCAT(id,_data)[] = s; \
ml_string_t id = { \
DESC_string, ML_unit, INT_CtoML(sizeof(s)-1) \
}
#define PATCH_ML_STRING(id) \
id.s = PTR_CtoML(CONCAT(id,_data))
/* Exceptions are identified by (string ref) values */
#define ML_EXNID(ex,name) \
ML_STRING(CONCAT(ex,_s),name); \
ml_val_t CONCAT(ex,_id0) [2] = { DESC_ref, }
#define PATCH_ML_EXNID(ex) \
PATCH_ML_STRING(CONCAT(ex,_s)); \
CONCAT(ex,_id0)[1] = PTR_CtoML(&(CONCAT(ex,_s).s))
#define ASM_CLOSURE(name) \
extern ml_val_t CONCAT(name,_a)[]; \
ml_val_t CONCAT(name,_v)[2] = { \
MAKE_DESC(1, DTAG_record), \
}
#define PATCH_ASM_CLOSURE(name) \
CONCAT(name,_v)[1] = PTR_CtoML(CONCAT(name,_a))
#endif
#if (CALLEESAVE > 0)
#define ASM_CONT(name) \
extern ml_val_t CONCAT(name,_a)[]; \
ml_val_t *CONCAT(name,_c) = (ml_val_t *)(CONCAT(name,_a))
#else
#define ASM_CONT(name) \
ASM_CLOSURE(name); \
ml_val_t *CONCAT(name,_c) = (ml_val_t *)(CONCAT(name,_v)+1)
#endif
/* machine identification strings */
ML_STRING(machine_id, MACHINE_ID);
ASM_CLOSURE(array);
ASM_CLOSURE(bind_cfun);
ASM_CLOSURE(callc);
ASM_CLOSURE(create_b);
ASM_CLOSURE(create_r);
ASM_CLOSURE(create_s);
ASM_CLOSURE(create_v);
ASM_CLOSURE(floor);
ASM_CLOSURE(logb);
ASM_CLOSURE(scalb);
ASM_CLOSURE(try_lock);
ASM_CLOSURE(unlock);
ASM_CLOSURE(handle);
ASM_CONT(return);
ASM_CONT(sigh_return);
ASM_CONT(pollh_return);
/* A ref cell initialized to unit. */
#define REFCELL(z) ml_val_t z[2] = {DESC_ref, ML_unit}
REFCELL(_ProfCurrent);
REFCELL(_PervStruct);
REFCELL(_MLSignalHandler);
REFCELL(_MLPollHandler);
REFCELL(_PollEvent0);
REFCELL(_PollFreq0);
REFCELL(_ActiveProcs0);
ml_val_t RunTimeCompUnit = ML_unit;
#ifdef ASM_MATH
ml_val_t MathVec = ML_unit;
#endif
/* aggregate structures of length zero */
const char _ML_string0_data[1] = {0};
ml_val_t _ML_string0[3] = {DESC_string, PTR_CtoML(_ML_string0_data), INT_CtoML(0)};
ml_val_t _ML_vector0[3] = {DESC_polyvec, ML_unit, INT_CtoML(0)};
ML_EXNID(_Div,"Div");
ML_EXNID(_Overflow,"Overflow");
ML_EXNID(SysErr, "SysErr");
extern ml_val_t externlist0[];
#ifdef ASM_MATH
ML_EXNID(_Ln,"Ln");
ML_EXNID(_Sqrt,"Sqrt");
#endif
/* A table of pointers to global C variables that are potential roots. */
ml_val_t *CRoots[MAX_C_ROOTS] = {
&RunTimeCompUnit,
_PervStruct+1,
_MLSignalHandler+1,
_MLPollHandler+1,
#ifdef ASM_MATH
&MathVec,
#else
NIL(ml_val_t *),
#endif
NIL(ml_val_t *), NIL(ml_val_t *)
};
#ifdef ASM_MATH
int NumCRoots = 5;
#else
int NumCRoots = 4;
#endif
/* AllocGlobals:
*/
void AllocGlobals (ml_state_t *msp)
{
ml_val_t RunVec;
ml_val_t CStruct;
#ifdef SIZES_C64_ML32
PatchAddrs ();
#endif
/* allocate the RunVec */
#define RUNVEC_SZ 12
ML_AllocWrite(msp, 0, MAKE_DESC(RUNVEC_SZ, DTAG_record));
ML_AllocWrite(msp, 1, PTR_CtoML(array_v+1));
ML_AllocWrite(msp, 2, PTR_CtoML(bind_cfun_v+1));
ML_AllocWrite(msp, 3, PTR_CtoML(callc_v+1));
ML_AllocWrite(msp, 4, PTR_CtoML(create_b_v+1));
ML_AllocWrite(msp, 5, PTR_CtoML(create_r_v+1));
ML_AllocWrite(msp, 6, PTR_CtoML(create_s_v+1));
ML_AllocWrite(msp, 7, PTR_CtoML(create_v_v+1));
ML_AllocWrite(msp, 8, PTR_CtoML(floor_v+1));
ML_AllocWrite(msp, 9, PTR_CtoML(logb_v+1));
ML_AllocWrite(msp, 10, PTR_CtoML(scalb_v+1));
ML_AllocWrite(msp, 11, PTR_CtoML(try_lock_v+1));
ML_AllocWrite(msp, 12, PTR_CtoML(unlock_v+1));
RunVec = ML_Alloc(msp, RUNVEC_SZ);
/* allocate the CStruct */
#define CSTRUCT_SZ 12
ML_AllocWrite(msp, 0, MAKE_DESC(CSTRUCT_SZ, DTAG_record));
ML_AllocWrite(msp, 1, RunVec);
ML_AllocWrite(msp, 2, DivId);
ML_AllocWrite(msp, 3, OverflowId);
ML_AllocWrite(msp, 4, SysErrId);
ML_AllocWrite(msp, 5, ProfCurrent);
ML_AllocWrite(msp, 6, PollEvent);
ML_AllocWrite(msp, 7, PollFreq);
ML_AllocWrite(msp, 8, MLPollHandler);
ML_AllocWrite(msp, 9, ActiveProcs);
ML_AllocWrite(msp, 10, PervStruct);
ML_AllocWrite(msp, 11, MLSignalHandler);
ML_AllocWrite(msp, 12, ML_vector0);
CStruct = ML_Alloc(msp, CSTRUCT_SZ);
/* allocate 1-elem SRECORD just containing the CStruct */
REC_ALLOC1(msp, RunTimeCompUnit, CStruct);
#ifdef ASM_MATH
#define MATHVEC_SZ 8
ML_AllocWrite(msp, 0, MAKE_DESC(MATHVEC_SZ, DTAG_record));
ML_AllocWrite(msp, 1, LnId);
ML_AllocWrite(msp, 2, SqrtId);
ML_AllocWrite(msp, 3, PTR_CtoML(arctan_v+1));
ML_AllocWrite(msp, 4, PTR_CtoML(cos_v+1));
ML_AllocWrite(msp, 5, PTR_CtoML(exp_v+1));
ML_AllocWrite(msp, 6, PTR_CtoML(ln_v+1));
ML_AllocWrite(msp, 7, PTR_CtoML(sin_v+1));
ML_AllocWrite(msp, 8, PTR_CtoML(sqrt_v+1));
MathVec = ML_Alloc(msp, MATHVEC_SZ);
#endif
} /* end of AllocGlobals */
/* RecordGlobals:
*
* Record all global symbols that may be referenced from the ML heap.
*/
void RecordGlobals ()
{
/* Misc. */
RecordCSymbol ("handle", PTR_CtoML(handle_v+1));
RecordCSymbol ("return", PTR_CtoML(return_c));
#if (CALLEESAVE == 0)
RecordCSymbol ("return_a", PTR_CtoML(return_a));
#endif
/* RunVec */
RecordCSymbol ("RunVec.array", PTR_CtoML(array_v+1));
RecordCSymbol ("RunVec.bind_cfun", PTR_CtoML(bind_cfun_v+1));
RecordCSymbol ("RunVec.callc", PTR_CtoML(callc_v+1));
RecordCSymbol ("RunVec.create_b", PTR_CtoML(create_b_v+1));
RecordCSymbol ("RunVec.create_r", PTR_CtoML(create_r_v+1));
RecordCSymbol ("RunVec.create_s", PTR_CtoML(create_s_v+1));
RecordCSymbol ("RunVec.create_v", PTR_CtoML(create_v_v+1));
RecordCSymbol ("RunVec.floor", PTR_CtoML(floor_v+1));
RecordCSymbol ("RunVec.logb", PTR_CtoML(logb_v+1));
RecordCSymbol ("RunVec.scalb", PTR_CtoML(scalb_v+1));
RecordCSymbol ("RunVec.try_lock", PTR_CtoML(try_lock_v+1));
RecordCSymbol ("RunVec.unlock", PTR_CtoML(unlock_v+1));
/* CStruct */
RecordCSymbol ("CStruct.DivId", DivId);
RecordCSymbol ("CStruct.OverflowId", OverflowId);
RecordCSymbol ("CStruct.SysErrId", SysErrId);
RecordCSymbol ("CStruct.machine_id", PTR_CtoML(machine_id.s));
RecordCSymbol ("CStruct.PervStruct", PervStruct);
RecordCSymbol ("CStruct.MLSignalHandler", MLSignalHandler);
RecordCSymbol ("CStruct.vector0", ML_vector0);
RecordCSymbol ("CStruct.profCurrent", ProfCurrent);
RecordCSymbol ("CStruct.MLPollHandler", MLPollHandler);
RecordCSymbol ("CStruct.pollEvent", PollEvent);
RecordCSymbol ("CStruct.pollFreq", PollFreq);
RecordCSymbol ("CStruct.activeProcs", ActiveProcs);
/* null string */
RecordCSymbol ("string0", ML_string0);
#if defined(ASM_MATH)
/* MathVec */
RecordCSymbol ("MathVec.LnId", LnId);
RecordCSymbol ("MathVec.SqrtId", SqrtId);
RecordCSymbol ("MathVec.arctan", PTR_CtoML(arctan_v+1));
RecordCSymbol ("MathVec.cos", PTR_CtoML(cos_v+1));
RecordCSymbol ("MathVec.exp", PTR_CtoML(exp_v+1));
RecordCSymbol ("MathVec.ln", PTR_CtoML(ln_v+1));
RecordCSymbol ("MathVec.sin", PTR_CtoML(sin_v+1));
RecordCSymbol ("MathVec.sqrt", PTR_CtoML(sqrt_v+1));
#endif
} /* end of RecordGlobals. */
#ifdef SIZES_C64_ML32
/* PatchAddrs:
*
* On machines where the size of Addr_t is bigger than the size of an Word_t,
* we need to dynamically patch the static ML objects.
*/
void PatchAddrs ()
{
PATCH_ML_STRING(machine_id);
PATCH_ML_EXNID(_Div);
PATCH_ML_EXNID(_Overflow);
PATCH_ML_EXNID(SysErr);
PATCH_ASM_CLOSURE(array);
PATCH_ASM_CLOSURE(bind_cfun);
PATCH_ASM_CLOSURE(callc);
PATCH_ASM_CLOSURE(create_b);
PATCH_ASM_CLOSURE(create_r);
PATCH_ASM_CLOSURE(create_s);
PATCH_ASM_CLOSURE(create_v);
PATCH_ASM_CLOSURE(floor);
PATCH_ASM_CLOSURE(logb);
PATCH_ASM_CLOSURE(scalb);
PATCH_ASM_CLOSURE(try_lock);
PATCH_ASM_CLOSURE(unlock);
PATCH_ASM_CLOSURE(handle);
#if (CALLEESAVE <= 0)
PATCH_ASM_CLOSURE(return);
PATCH_ASM_CLOSURE(sigh_return);
#endif
} /* end of PatchAddrs */
#endif /* SIZES_C64_ML32 */
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