From 1de2f31694ddbc86b18e491c8aedc91791f512e2 Mon Sep 17 00:00:00 2001 From: Roberto Ierusalimschy Date: Thu, 9 Mar 2023 11:10:04 -0300 Subject: Corrected support for 16-bit systems We still need access to a 16-bit system to correctly test these changes. --- ldo.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) (limited to 'ldo.c') diff --git a/ldo.c b/ldo.c index c30cde76..2a0017ca 100644 --- a/ldo.c +++ b/ldo.c @@ -299,17 +299,13 @@ static int stackinuse (lua_State *L) { */ void luaD_shrinkstack (lua_State *L) { int inuse = stackinuse(L); - int nsize = inuse * 2; /* proposed new size */ - int max = inuse * 3; /* maximum "reasonable" size */ - if (max > LUAI_MAXSTACK) { - max = LUAI_MAXSTACK; /* respect stack limit */ - if (nsize > LUAI_MAXSTACK) - nsize = LUAI_MAXSTACK; - } + int max = (inuse > LUAI_MAXSTACK / 3) ? LUAI_MAXSTACK : inuse * 3; /* if thread is currently not handling a stack overflow and its size is larger than maximum "reasonable" size, shrink it */ - if (inuse <= LUAI_MAXSTACK && stacksize(L) > max) + if (inuse <= LUAI_MAXSTACK && stacksize(L) > max) { + int nsize = (inuse > LUAI_MAXSTACK / 2) ? LUAI_MAXSTACK : inuse * 2; luaD_reallocstack(L, nsize, 0); /* ok if that fails */ + } else /* don't change stack */ condmovestack(L,{},{}); /* (change only for debugging) */ luaE_shrinkCI(L); /* shrink CI list */ @@ -629,7 +625,7 @@ CallInfo *luaD_precall (lua_State *L, StkId func, int nresults) { ** check the stack before doing anything else. 'luaD_precall' already ** does that. */ -l_sinline void ccall (lua_State *L, StkId func, int nResults, int inc) { +l_sinline void ccall (lua_State *L, StkId func, int nResults, l_uint32 inc) { CallInfo *ci; L->nCcalls += inc; if (l_unlikely(getCcalls(L) >= LUAI_MAXCCALLS)) { -- cgit v1.2.3-55-g6feb From 9be74ccc214eb6f4d9d0b9496fd973542c7377d9 Mon Sep 17 00:00:00 2001 From: Roberto Ierusalimschy Date: Mon, 22 May 2023 14:47:54 -0300 Subject: Several functions turned 'static' Several functions that were already being used only inside their own file have been declared as 'static'. --- lcode.c | 22 +++++++++++----------- lcode.h | 3 --- ldo.c | 6 +++--- ldo.h | 1 - lgc.c | 4 ++-- lstate.c | 4 ++-- lstate.h | 1 - 7 files changed, 18 insertions(+), 23 deletions(-) (limited to 'ldo.c') diff --git a/lcode.c b/lcode.c index eade2806..caac6ba3 100644 --- a/lcode.c +++ b/lcode.c @@ -415,7 +415,7 @@ int luaK_codeABx (FuncState *fs, OpCode o, int a, unsigned int bc) { /* ** Format and emit an 'iAsBx' instruction. */ -int luaK_codeAsBx (FuncState *fs, OpCode o, int a, int bc) { +static int codeAsBx (FuncState *fs, OpCode o, int a, int bc) { unsigned int b = bc + OFFSET_sBx; lua_assert(getOpMode(o) == iAsBx); lua_assert(a <= MAXARG_A && b <= MAXARG_Bx); @@ -671,7 +671,7 @@ static int fitsBx (lua_Integer i) { void luaK_int (FuncState *fs, int reg, lua_Integer i) { if (fitsBx(i)) - luaK_codeAsBx(fs, OP_LOADI, reg, cast_int(i)); + codeAsBx(fs, OP_LOADI, reg, cast_int(i)); else luaK_codek(fs, reg, luaK_intK(fs, i)); } @@ -680,7 +680,7 @@ void luaK_int (FuncState *fs, int reg, lua_Integer i) { static void luaK_float (FuncState *fs, int reg, lua_Number f) { lua_Integer fi; if (luaV_flttointeger(f, &fi, F2Ieq) && fitsBx(fi)) - luaK_codeAsBx(fs, OP_LOADF, reg, cast_int(fi)); + codeAsBx(fs, OP_LOADF, reg, cast_int(fi)); else luaK_codek(fs, reg, luaK_numberK(fs, f)); } @@ -1025,7 +1025,7 @@ static int luaK_exp2K (FuncState *fs, expdesc *e) { ** in the range of R/K indices). ** Returns 1 iff expression is K. */ -int luaK_exp2RK (FuncState *fs, expdesc *e) { +static int exp2RK (FuncState *fs, expdesc *e) { if (luaK_exp2K(fs, e)) return 1; else { /* not a constant in the right range: put it in a register */ @@ -1037,7 +1037,7 @@ int luaK_exp2RK (FuncState *fs, expdesc *e) { static void codeABRK (FuncState *fs, OpCode o, int a, int b, expdesc *ec) { - int k = luaK_exp2RK(fs, ec); + int k = exp2RK(fs, ec); luaK_codeABCk(fs, o, a, b, ec->u.info, k); } @@ -1225,7 +1225,7 @@ static int isKstr (FuncState *fs, expdesc *e) { /* ** Check whether expression 'e' is a literal integer. */ -int luaK_isKint (expdesc *e) { +static int isKint (expdesc *e) { return (e->k == VKINT && !hasjumps(e)); } @@ -1235,7 +1235,7 @@ int luaK_isKint (expdesc *e) { ** proper range to fit in register C */ static int isCint (expdesc *e) { - return luaK_isKint(e) && (l_castS2U(e->u.ival) <= l_castS2U(MAXARG_C)); + return isKint(e) && (l_castS2U(e->u.ival) <= l_castS2U(MAXARG_C)); } @@ -1244,7 +1244,7 @@ static int isCint (expdesc *e) { ** proper range to fit in register sC */ static int isSCint (expdesc *e) { - return luaK_isKint(e) && fitsC(e->u.ival); + return isKint(e) && fitsC(e->u.ival); } @@ -1460,7 +1460,7 @@ static void codebinK (FuncState *fs, BinOpr opr, */ static int finishbinexpneg (FuncState *fs, expdesc *e1, expdesc *e2, OpCode op, int line, TMS event) { - if (!luaK_isKint(e2)) + if (!isKint(e2)) return 0; /* not an integer constant */ else { lua_Integer i2 = e2->u.ival; @@ -1593,7 +1593,7 @@ static void codeeq (FuncState *fs, BinOpr opr, expdesc *e1, expdesc *e2) { op = OP_EQI; r2 = im; /* immediate operand */ } - else if (luaK_exp2RK(fs, e2)) { /* 2nd expression is constant? */ + else if (exp2RK(fs, e2)) { /* 2nd expression is constant? */ op = OP_EQK; r2 = e2->u.info; /* constant index */ } @@ -1659,7 +1659,7 @@ void luaK_infix (FuncState *fs, BinOpr op, expdesc *v) { } case OPR_EQ: case OPR_NE: { if (!tonumeral(v, NULL)) - luaK_exp2RK(fs, v); + exp2RK(fs, v); /* else keep numeral, which may be an immediate operand */ break; } diff --git a/lcode.h b/lcode.h index 32658244..0b971fc4 100644 --- a/lcode.h +++ b/lcode.h @@ -61,10 +61,8 @@ typedef enum UnOpr { OPR_MINUS, OPR_BNOT, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr; LUAI_FUNC int luaK_code (FuncState *fs, Instruction i); LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx); -LUAI_FUNC int luaK_codeAsBx (FuncState *fs, OpCode o, int A, int Bx); LUAI_FUNC int luaK_codeABCk (FuncState *fs, OpCode o, int A, int B, int C, int k); -LUAI_FUNC int luaK_isKint (expdesc *e); LUAI_FUNC int luaK_exp2const (FuncState *fs, const expdesc *e, TValue *v); LUAI_FUNC void luaK_fixline (FuncState *fs, int line); LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n); @@ -76,7 +74,6 @@ LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e); LUAI_FUNC void luaK_exp2anyregup (FuncState *fs, expdesc *e); LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e); LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e); -LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e); LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key); LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k); LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e); diff --git a/ldo.c b/ldo.c index 2a0017ca..bd8d965f 100644 --- a/ldo.c +++ b/ldo.c @@ -409,7 +409,7 @@ static void rethook (lua_State *L, CallInfo *ci, int nres) { ** stack, below original 'func', so that 'luaD_precall' can call it. Raise ** an error if there is no '__call' metafield. */ -StkId luaD_tryfuncTM (lua_State *L, StkId func) { +static StkId tryfuncTM (lua_State *L, StkId func) { const TValue *tm; StkId p; checkstackGCp(L, 1, func); /* space for metamethod */ @@ -568,7 +568,7 @@ int luaD_pretailcall (lua_State *L, CallInfo *ci, StkId func, return -1; } default: { /* not a function */ - func = luaD_tryfuncTM(L, func); /* try to get '__call' metamethod */ + func = tryfuncTM(L, func); /* try to get '__call' metamethod */ /* return luaD_pretailcall(L, ci, func, narg1 + 1, delta); */ narg1++; goto retry; /* try again */ @@ -609,7 +609,7 @@ CallInfo *luaD_precall (lua_State *L, StkId func, int nresults) { return ci; } default: { /* not a function */ - func = luaD_tryfuncTM(L, func); /* try to get '__call' metamethod */ + func = tryfuncTM(L, func); /* try to get '__call' metamethod */ /* return luaD_precall(L, func, nresults); */ goto retry; /* try again with metamethod */ } diff --git a/ldo.h b/ldo.h index 1aa446ad..56008ab3 100644 --- a/ldo.h +++ b/ldo.h @@ -71,7 +71,6 @@ LUAI_FUNC int luaD_pretailcall (lua_State *L, CallInfo *ci, StkId func, LUAI_FUNC CallInfo *luaD_precall (lua_State *L, StkId func, int nResults); LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults); LUAI_FUNC void luaD_callnoyield (lua_State *L, StkId func, int nResults); -LUAI_FUNC StkId luaD_tryfuncTM (lua_State *L, StkId func); LUAI_FUNC int luaD_closeprotected (lua_State *L, ptrdiff_t level, int status); LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u, ptrdiff_t oldtop, ptrdiff_t ef); diff --git a/lgc.c b/lgc.c index a3094ff5..dd824e77 100644 --- a/lgc.c +++ b/lgc.c @@ -1409,7 +1409,7 @@ static void stepgenfull (lua_State *L, global_State *g) { setminordebt(g); } else { /* another bad collection; stay in incremental mode */ - g->GCestimate = gettotalbytes(g); /* first estimate */; + g->GCestimate = gettotalbytes(g); /* first estimate */ entersweep(L); luaC_runtilstate(L, bitmask(GCSpause)); /* finish collection */ setpause(g); @@ -1604,7 +1604,7 @@ static lu_mem singlestep (lua_State *L) { case GCSenteratomic: { work = atomic(L); /* work is what was traversed by 'atomic' */ entersweep(L); - g->GCestimate = gettotalbytes(g); /* first estimate */; + g->GCestimate = gettotalbytes(g); /* first estimate */ break; } case GCSswpallgc: { /* sweep "regular" objects */ diff --git a/lstate.c b/lstate.c index 1e925e5a..06667dac 100644 --- a/lstate.c +++ b/lstate.c @@ -119,7 +119,7 @@ CallInfo *luaE_extendCI (lua_State *L) { /* ** free all CallInfo structures not in use by a thread */ -void luaE_freeCI (lua_State *L) { +static void freeCI (lua_State *L) { CallInfo *ci = L->ci; CallInfo *next = ci->next; ci->next = NULL; @@ -204,7 +204,7 @@ static void freestack (lua_State *L) { if (L->stack.p == NULL) return; /* stack not completely built yet */ L->ci = &L->base_ci; /* free the entire 'ci' list */ - luaE_freeCI(L); + freeCI(L); lua_assert(L->nci == 0); luaM_freearray(L, L->stack.p, stacksize(L) + EXTRA_STACK); /* free stack */ } diff --git a/lstate.h b/lstate.h index 8bf6600e..40ff89aa 100644 --- a/lstate.h +++ b/lstate.h @@ -396,7 +396,6 @@ union GCUnion { LUAI_FUNC void luaE_setdebt (global_State *g, l_mem debt); LUAI_FUNC void luaE_freethread (lua_State *L, lua_State *L1); LUAI_FUNC CallInfo *luaE_extendCI (lua_State *L); -LUAI_FUNC void luaE_freeCI (lua_State *L); LUAI_FUNC void luaE_shrinkCI (lua_State *L); LUAI_FUNC void luaE_checkcstack (lua_State *L); LUAI_FUNC void luaE_incCstack (lua_State *L); -- cgit v1.2.3-55-g6feb