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Abstract out on-demand loading of FFI library.

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This commit is contained in:
Mike Pall 2021-06-01 01:01:15 +02:00
parent 61990cef05
commit 50d6883e60
4 changed files with 13 additions and 15 deletions
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6
src/lib_jit.c
View File

@ -346,11 +346,7 @@ LJLIB_CF(jit_util_tracek)
ir = &T->ir[ir->op1];
}
#if LJ_HASFFI
if (ir->o == IR_KINT64 && !ctype_ctsG(G(L))) {
ptrdiff_t oldtop = savestack(L, L->top);
luaopen_ffi(L); /* Load FFI library on-demand. */
L->top = restorestack(L, oldtop);
}
if (ir->o == IR_KINT64) ctype_loadffi(L);
#endif
lj_ir_kvalue(L, L->top-2, ir);
setintV(L->top-1, (int32_t)irt_type(ir->t));

6
src/lj_bcread.c
View File

@ -399,11 +399,7 @@ static int bcread_header(LexState *ls)
if ((flags & BCDUMP_F_FFI)) {
#if LJ_HASFFI
lua_State *L = ls->L;
if (!ctype_ctsG(G(L))) {
ptrdiff_t oldtop = savestack(L, L->top);
luaopen_ffi(L); /* Load FFI library on-demand. */
L->top = restorestack(L, oldtop);
}
ctype_loadffi(L);
#else
return 0;
#endif

10
src/lj_ctype.h
View File

@ -389,6 +389,16 @@ static LJ_AINLINE CTState *ctype_cts(lua_State *L)
return cts;
}
/* Load FFI library on-demand. */
#define ctype_loadffi(L) \
do { \
if (!ctype_ctsG(G(L))) { \
ptrdiff_t oldtop = (char *)L->top - mref(L->stack, char); \
luaopen_ffi(L); \
L->top = (TValue *)(mref(L->stack, char) + oldtop); \
} \
} while (0)
/* Save and restore state of C type table. */
#define LJ_CTYPE_SAVE(cts) CTState savects_ = *(cts)
#define LJ_CTYPE_RESTORE(cts) \

6
src/lj_lex.c
View File

@ -118,11 +118,7 @@ static void lex_number(LexState *ls, TValue *tv)
GCcdata *cd;
lj_assertLS(fmt == STRSCAN_I64 || fmt == STRSCAN_U64 || fmt == STRSCAN_IMAG,
"unexpected number format %d", fmt);
if (!ctype_ctsG(G(L))) {
ptrdiff_t oldtop = savestack(L, L->top);
luaopen_ffi(L); /* Load FFI library on-demand. */
L->top = restorestack(L, oldtop);
}
ctype_loadffi(L);
if (fmt == STRSCAN_IMAG) {
cd = lj_cdata_new_(L, CTID_COMPLEX_DOUBLE, 2*sizeof(double));
((double *)cdataptr(cd))[0] = 0;