/* Execution of byte code produced by bytecomp.el.
- Copyright (C) 1985, 1986, 1987, 1988, 1993 Free Software Foundation, Inc.
+ Copyright (C) 1985, 1986, 1987, 1988, 1993, 2000, 2001
+ Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include "charset.h"
#include "syntax.h"
+#ifdef CHECK_FRAME_FONT
+#include "frame.h"
+#include "xterm.h"
+#endif
+
/*
* define BYTE_CODE_SAFE to enable some minor sanity checking (useful for
* debugging the byte compiler...)
for (stack = byte_stack_list; stack; stack = stack->next)
{
+ /* If STACK->top is null here, this means there's an opcode in
+ Fbyte_code that wasn't expected to GC, but did. To find out
+ which opcode this is, record the value of `stack', and walk
+ up the stack in a debugger, stopping in frames of Fbyte_code.
+ The culprit is found in the frame of Fbyte_code where the
+ address of its local variable `stack' is equal to the
+ recorded value of `stack' here. */
if (!stack->top)
abort ();
#endif /* not BYTE_CODE_SAFE */
+/* A version of the QUIT macro which makes sure that the stack top is
+ set before signaling `quit'. */
+
+#define BYTE_CODE_QUIT \
+ do { \
+ if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \
+ { \
+ Vquit_flag = Qnil; \
+ BEFORE_POTENTIAL_GC (); \
+ Fsignal (Qquit, Qnil); \
+ } \
+ } while (0)
+
DEFUN ("byte-code", Fbyte_code, Sbyte_code, 3, 3, 0,
"Function used internally in byte-compiled code.\n\
#endif
int op;
/* Lisp_Object v1, v2; */
- Lisp_Object *vectorp = XVECTOR (vector)->contents;
+ Lisp_Object *vectorp;
#ifdef BYTE_CODE_SAFE
int const_length = XVECTOR (vector)->size;
Lisp_Object *stacke;
#endif
- int bytestr_length = STRING_BYTES (XSTRING (bytestr));
+ int bytestr_length;
struct byte_stack stack;
Lisp_Object *top;
Lisp_Object result;
+#ifdef CHECK_FRAME_FONT
+ {
+ struct frame *f = SELECTED_FRAME ();
+ if (FRAME_X_P (f)
+ && FRAME_FONT (f)->direction != 0
+ && FRAME_FONT (f)->direction != 1)
+ abort ();
+ }
+#endif
+
CHECK_STRING (bytestr, 0);
if (!VECTORP (vector))
vector = wrong_type_argument (Qvectorp, vector);
CHECK_NUMBER (maxdepth, 2);
+ if (STRING_MULTIBYTE (bytestr))
+ /* BYTESTR must have been produced by Emacs 20.2 or the earlier
+ because they produced a raw 8-bit string for byte-code and now
+ such a byte-code string is loaded as multibyte while raw 8-bit
+ characters converted to multibyte form. Thus, now we must
+ convert them back to the original unibyte form. */
+ bytestr = Fstring_as_unibyte (bytestr);
+
+ bytestr_length = STRING_BYTES (XSTRING (bytestr));
+ vectorp = XVECTOR (vector)->contents;
+
stack.byte_string = bytestr;
stack.pc = stack.byte_string_start = XSTRING (bytestr)->data;
stack.constants = vector;
{
#ifdef BYTE_CODE_SAFE
if (top > stacke)
- error ("Byte code stack overflow (byte compiler bug), pc %d, depth %d",
- stack.pc - stack.byte_string_start, stacke - top);
+ abort ();
else if (top < stack.bottom - 1)
- error ("Byte code stack underflow (byte compiler bug), pc %d",
- stack.pc - stack.byte_string_start);
+ abort ();
#endif
#ifdef BYTE_CODE_METER
{
v2 = XSYMBOL (v1)->value;
if (MISCP (v2) || EQ (v2, Qunbound))
- v2 = Fsymbol_value (v1);
+ {
+ BEFORE_POTENTIAL_GC ();
+ v2 = Fsymbol_value (v1);
+ AFTER_POTENTIAL_GC ();
+ }
}
else
- v2 = Fsymbol_value (v1);
+ {
+ BEFORE_POTENTIAL_GC ();
+ v2 = Fsymbol_value (v1);
+ AFTER_POTENTIAL_GC ();
+ }
PUSH (v2);
break;
}
op = FETCH2;
if (NILP (POP))
{
- QUIT;
+ BYTE_CODE_QUIT;
CHECK_RANGE (op);
stack.pc = stack.byte_string_start + op;
}
case Bmemq:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fmemq (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
break;
}
- case Bvarset+7:
- op = FETCH2;
+ case Bvarset:
+ case Bvarset+1:
+ case Bvarset+2:
+ case Bvarset+3:
+ case Bvarset+4:
+ case Bvarset+5:
+ op -= Bvarset;
goto varset;
- case Bvarset: case Bvarset+1: case Bvarset+2: case Bvarset+3:
- case Bvarset+4: case Bvarset+5:
- op -= Bvarset;
+ case Bvarset+7:
+ op = FETCH2;
goto varset;
case Bvarset+6:
op = FETCH;
varset:
- set_internal (vectorp[op], POP, current_buffer, 0);
- /* Fset (vectorp[op], POP); */
+ {
+ Lisp_Object sym, val;
+
+ sym = vectorp[op];
+ val = TOP;
+
+ /* Inline the most common case. */
+ if (SYMBOLP (sym)
+ && !EQ (val, Qunbound)
+ && !MISCP (XSYMBOL (sym)->value)
+ /* I think this should either be checked in the byte
+ compiler, or there should be a flag indicating that
+ a symbol might be constant in Lisp_Symbol, instead
+ of checking this here over and over again. --gerd. */
+ && !EQ (sym, Qnil)
+ && !EQ (sym, Qt)
+ && !(XSYMBOL (sym)->name->data[0] == ':'
+ && EQ (XSYMBOL (sym)->obarray, initial_obarray)
+ && !EQ (val, sym)))
+ XSYMBOL (sym)->value = val;
+ else
+ {
+ BEFORE_POTENTIAL_GC ();
+ set_internal (sym, val, current_buffer, 0);
+ AFTER_POTENTIAL_GC ();
+ }
+ }
+ POP;
break;
case Bdup:
case Bvarbind+5:
op -= Bvarbind;
varbind:
+ /* Specbind can signal and thus GC. */
+ BEFORE_POTENTIAL_GC ();
specbind (vectorp[op], POP);
+ AFTER_POTENTIAL_GC ();
break;
case Bcall+6:
case Bgoto:
MAYBE_GC ();
- QUIT;
+ BYTE_CODE_QUIT;
op = FETCH2; /* pc = FETCH2 loses since FETCH2 contains pc++ */
CHECK_RANGE (op);
stack.pc = stack.byte_string_start + op;
op = FETCH2;
if (!NILP (POP))
{
- QUIT;
+ BYTE_CODE_QUIT;
CHECK_RANGE (op);
stack.pc = stack.byte_string_start + op;
}
op = FETCH2;
if (NILP (TOP))
{
- QUIT;
+ BYTE_CODE_QUIT;
CHECK_RANGE (op);
stack.pc = stack.byte_string_start + op;
}
op = FETCH2;
if (!NILP (TOP))
{
- QUIT;
+ BYTE_CODE_QUIT;
CHECK_RANGE (op);
stack.pc = stack.byte_string_start + op;
}
case BRgoto:
MAYBE_GC ();
- QUIT;
+ BYTE_CODE_QUIT;
stack.pc += (int) *stack.pc - 127;
break;
MAYBE_GC ();
if (NILP (POP))
{
- QUIT;
+ BYTE_CODE_QUIT;
stack.pc += (int) *stack.pc - 128;
}
stack.pc++;
MAYBE_GC ();
if (!NILP (POP))
{
- QUIT;
+ BYTE_CODE_QUIT;
stack.pc += (int) *stack.pc - 128;
}
stack.pc++;
op = *stack.pc++;
if (NILP (TOP))
{
- QUIT;
+ BYTE_CODE_QUIT;
stack.pc += op - 128;
}
else DISCARD (1);
op = *stack.pc++;
if (!NILP (TOP))
{
- QUIT;
+ BYTE_CODE_QUIT;
stack.pc += op - 128;
}
else DISCARD (1);
case Bcatch:
{
Lisp_Object v1;
- v1 = POP;
BEFORE_POTENTIAL_GC ();
+ v1 = POP;
TOP = internal_catch (TOP, Feval, v1);
AFTER_POTENTIAL_GC ();
break;
}
case Bunwind_protect:
+ /* The function record_unwind_protect can GC. */
+ BEFORE_POTENTIAL_GC ();
record_unwind_protect (0, POP);
+ AFTER_POTENTIAL_GC ();
(specpdl_ptr - 1)->symbol = Qnil;
break;
case Btemp_output_buffer_setup:
BEFORE_POTENTIAL_GC ();
+ CHECK_STRING (TOP, 0);
temp_output_buffer_setup (XSTRING (TOP)->data);
AFTER_POTENTIAL_GC ();
TOP = Vstandard_output;
case Btemp_output_buffer_show:
{
Lisp_Object v1;
- v1 = POP;
BEFORE_POTENTIAL_GC ();
+ v1 = POP;
temp_output_buffer_show (TOP);
TOP = v1;
/* pop binding of standard-output */
case Bnth:
{
Lisp_Object v1, v2;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
v2 = TOP;
- BEFORE_POTENTIAL_GC ();
CHECK_NUMBER (v2, 0);
AFTER_POTENTIAL_GC ();
op = XINT (v2);
break;
case Blength:
+ BEFORE_POTENTIAL_GC ();
TOP = Flength (TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Baref:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Faref (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Baset:
{
Lisp_Object v1, v2;
+ BEFORE_POTENTIAL_GC ();
v2 = POP; v1 = POP;
TOP = Faset (TOP, v1, v2);
+ AFTER_POTENTIAL_GC ();
break;
}
case Bsymbol_value:
+ BEFORE_POTENTIAL_GC ();
TOP = Fsymbol_value (TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bsymbol_function:
+ BEFORE_POTENTIAL_GC ();
TOP = Fsymbol_function (TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bset:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fset (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Bfset:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Ffset (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Bget:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fget (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Bsubstring:
{
Lisp_Object v1, v2;
- v2 = POP; v1 = POP;
BEFORE_POTENTIAL_GC ();
+ v2 = POP; v1 = POP;
TOP = Fsubstring (TOP, v1, v2);
AFTER_POTENTIAL_GC ();
break;
}
case Bconcat2:
+ BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fconcat (2, &TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bconcat3:
+ BEFORE_POTENTIAL_GC ();
DISCARD (2);
TOP = Fconcat (3, &TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bconcat4:
+ BEFORE_POTENTIAL_GC ();
DISCARD (3);
TOP = Fconcat (4, &TOP);
+ AFTER_POTENTIAL_GC ();
break;
case BconcatN:
op = FETCH;
+ BEFORE_POTENTIAL_GC ();
DISCARD (op - 1);
TOP = Fconcat (op, &TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bsub1:
TOP = v1;
}
else
- TOP = Fadd1 (v1);
+ {
+ BEFORE_POTENTIAL_GC ();
+ TOP = Fadd1 (v1);
+ AFTER_POTENTIAL_GC ();
+ }
break;
}
case Beqlsign:
{
Lisp_Object v1, v2;
- v2 = POP; v1 = TOP;
BEFORE_POTENTIAL_GC ();
+ v2 = POP; v1 = TOP;
CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (v1, 0);
CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (v2, 0);
AFTER_POTENTIAL_GC ();
-#ifdef LISP_FLOAT_TYPE
if (FLOATP (v1) || FLOATP (v2))
{
double f1, f2;
TOP = (f1 == f2 ? Qt : Qnil);
}
else
-#endif
TOP = (XINT (v1) == XINT (v2) ? Qt : Qnil);
break;
}
case Bgtr:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fgtr (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Blss:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Flss (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Bleq:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fleq (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Bgeq:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fgeq (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Bdiff:
+ BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fminus (2, &TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bnegate:
TOP = v1;
}
else
- TOP = Fminus (1, &TOP);
+ {
+ BEFORE_POTENTIAL_GC ();
+ TOP = Fminus (1, &TOP);
+ AFTER_POTENTIAL_GC ();
+ }
break;
}
case Bplus:
+ BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fplus (2, &TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bmax:
+ BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fmax (2, &TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bmin:
+ BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fmin (2, &TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bmult:
+ BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Ftimes (2, &TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bquo:
+ BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fquo (2, &TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Brem:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Frem (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
}
case Bchar_after:
+ BEFORE_POTENTIAL_GC ();
TOP = Fchar_after (TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bfollowing_char:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = Ffollowing_char ();
+ AFTER_POTENTIAL_GC ();
PUSH (v1);
break;
}
case Bpreceding_char:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = Fprevious_char ();
+ AFTER_POTENTIAL_GC ();
PUSH (v1);
break;
}
case Bcurrent_column:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
XSETFASTINT (v1, current_column ());
+ AFTER_POTENTIAL_GC ();
PUSH (v1);
break;
}
case Bskip_chars_forward:
{
Lisp_Object v1;
- v1 = POP;
BEFORE_POTENTIAL_GC ();
+ v1 = POP;
TOP = Fskip_chars_forward (TOP, v1);
AFTER_POTENTIAL_GC ();
break;
case Bskip_chars_backward:
{
Lisp_Object v1;
- v1 = POP;
BEFORE_POTENTIAL_GC ();
+ v1 = POP;
TOP = Fskip_chars_backward (TOP, v1);
AFTER_POTENTIAL_GC ();
break;
case Bbuffer_substring:
{
Lisp_Object v1;
- v1 = POP;
BEFORE_POTENTIAL_GC ();
+ v1 = POP;
TOP = Fbuffer_substring (TOP, v1);
AFTER_POTENTIAL_GC ();
break;
case Bdelete_region:
{
Lisp_Object v1;
- v1 = POP;
BEFORE_POTENTIAL_GC ();
+ v1 = POP;
TOP = Fdelete_region (TOP, v1);
AFTER_POTENTIAL_GC ();
break;
case Bnarrow_to_region:
{
Lisp_Object v1;
- v1 = POP;
BEFORE_POTENTIAL_GC ();
+ v1 = POP;
TOP = Fnarrow_to_region (TOP, v1);
AFTER_POTENTIAL_GC ();
break;
case Bset_marker:
{
Lisp_Object v1, v2;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
v2 = POP;
TOP = Fset_marker (TOP, v2, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Bmatch_beginning:
+ BEFORE_POTENTIAL_GC ();
TOP = Fmatch_beginning (TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bmatch_end:
+ BEFORE_POTENTIAL_GC ();
TOP = Fmatch_end (TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bupcase:
+ BEFORE_POTENTIAL_GC ();
TOP = Fupcase (TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bdowncase:
+ BEFORE_POTENTIAL_GC ();
TOP = Fdowncase (TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bstringeqlsign:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fstring_equal (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Bstringlss:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fstring_lessp (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Bnthcdr:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fnthcdr (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
if (CONSP (TOP))
{
/* Exchange args and then do nth. */
+ BEFORE_POTENTIAL_GC ();
v2 = POP;
v1 = TOP;
- BEFORE_POTENTIAL_GC ();
CHECK_NUMBER (v2, 0);
AFTER_POTENTIAL_GC ();
op = XINT (v2);
}
else
{
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Felt (TOP, v1);
+ AFTER_POTENTIAL_GC ();
}
break;
}
case Bmember:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fmember (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Bassq:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fassq (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Bnreverse:
+ BEFORE_POTENTIAL_GC ();
TOP = Fnreverse (TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bsetcar:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fsetcar (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
case Bsetcdr:
{
Lisp_Object v1;
+ BEFORE_POTENTIAL_GC ();
v1 = POP;
TOP = Fsetcdr (TOP, v1);
+ AFTER_POTENTIAL_GC ();
break;
}
}
case Bnconc:
+ BEFORE_POTENTIAL_GC ();
DISCARD (1);
TOP = Fnconc (2, &TOP);
+ AFTER_POTENTIAL_GC ();
break;
case Bnumberp:
#ifdef BYTE_CODE_SAFE
if (op < Bconstant)
{
- BEFORE_POTENTIAL_GC ();
- error ("unknown bytecode %d (byte compiler bug)", op);
- AFTER_POTENTIAL_GC ();
+ abort ();
}
if ((op -= Bconstant) >= const_length)
{
- BEFORE_POTENTIAL_GC ();
- error ("no constant number %d (byte compiler bug)", op);
- AFTER_POTENTIAL_GC ();
+ abort ();
}
PUSH (vectorp[op]);
#else
HCoop / bpt / emacs.git / blobdiff