/* Fundamental definitions for GNU Emacs Lisp interpreter. -*- coding: utf-8 -*-
-Copyright (C) 1985-1987, 1993-1995, 1997-2015 Free Software Foundation,
+Copyright (C) 1985-1987, 1993-1995, 1997-2016 Free Software Foundation,
Inc.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+the Free Software Foundation, either version 3 of the License, or (at
+your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
#define GCTYPEBITS 3
DEFINE_GDB_SYMBOL_END (GCTYPEBITS)
-/* The number of bits needed in an EMACS_INT over and above the number
- of bits in a pointer. This is 0 on systems where:
- 1. We can specify multiple-of-8 alignment on static variables.
- 2. We know malloc returns a multiple of 8. */
-#if (defined alignas \
- && (defined GNU_MALLOC || defined DOUG_LEA_MALLOC || defined __GLIBC__ \
- || defined DARWIN_OS || defined __sun || defined __MINGW32__ \
- || defined CYGWIN))
-# define NONPOINTER_BITS 0
-#else
-# define NONPOINTER_BITS GCTYPEBITS
-#endif
-
/* EMACS_INT - signed integer wide enough to hold an Emacs value
EMACS_INT_MAX - maximum value of EMACS_INT; can be used in #if
pI - printf length modifier for EMACS_INT
#ifndef EMACS_INT_MAX
# if INTPTR_MAX <= 0
# error "INTPTR_MAX misconfigured"
-# elif INTPTR_MAX <= INT_MAX >> NONPOINTER_BITS && !defined WIDE_EMACS_INT
+# elif INTPTR_MAX <= INT_MAX && !defined WIDE_EMACS_INT
typedef int EMACS_INT;
typedef unsigned int EMACS_UINT;
# define EMACS_INT_MAX INT_MAX
# define pI ""
-# elif INTPTR_MAX <= LONG_MAX >> NONPOINTER_BITS && !defined WIDE_EMACS_INT
+# elif INTPTR_MAX <= LONG_MAX && !defined WIDE_EMACS_INT
typedef long int EMACS_INT;
typedef unsigned long EMACS_UINT;
# define EMACS_INT_MAX LONG_MAX
# define pI "l"
-/* Check versus LLONG_MAX, not LLONG_MAX >> NONPOINTER_BITS.
- In theory this is not safe, but in practice it seems to be OK. */
# elif INTPTR_MAX <= LLONG_MAX
typedef long long int EMACS_INT;
typedef unsigned long long int EMACS_UINT;
error !;
#endif
-#ifndef alignas
-# error "alignas not defined"
-#endif
-
#ifdef HAVE_STRUCT_ATTRIBUTE_ALIGNED
# define GCALIGNED __attribute__ ((aligned (GCALIGNMENT)))
#else
# define lisp_h_XINT(a) (XLI (a) >> INTTYPEBITS)
# define lisp_h_XSYMBOL(a) \
(eassert (SYMBOLP (a)), \
- (struct Lisp_Symbol *) ((uintptr_t) XLI (a) - Lisp_Symbol \
+ (struct Lisp_Symbol *) ((intptr_t) XLI (a) - Lisp_Symbol \
+ (char *) lispsym))
# define lisp_h_XTYPE(a) ((enum Lisp_Type) (XLI (a) & ~VALMASK))
# define lisp_h_XUNTAG(a, type) ((void *) (intptr_t) (XLI (a) - (type)))
#if (defined __NO_INLINE__ \
&& ! defined __OPTIMIZE__ && ! defined __OPTIMIZE_SIZE__ \
&& ! (defined INLINING && ! INLINING))
+# define DEFINE_KEY_OPS_AS_MACROS true
+#else
+# define DEFINE_KEY_OPS_AS_MACROS false
+#endif
+
+#if DEFINE_KEY_OPS_AS_MACROS
# define XLI(o) lisp_h_XLI (o)
# define XIL(i) lisp_h_XIL (i)
# define CHECK_LIST_CONS(x, y) lisp_h_CHECK_LIST_CONS (x, y)
#define DEFUN_ARGS_8 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, \
Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object)
-/* Yield an integer that contains TAG along with PTR. */
+/* Yield a signed integer that contains TAG along with PTR.
+
+ Sign-extend pointers when USE_LSB_TAG (this simplifies emacs-module.c),
+ and zero-extend otherwise (that’s a bit faster here).
+ Sign extension matters only when EMACS_INT is wider than a pointer. */
#define TAG_PTR(tag, ptr) \
- ((USE_LSB_TAG ? (tag) : (EMACS_UINT) (tag) << VALBITS) + (uintptr_t) (ptr))
+ (USE_LSB_TAG \
+ ? (intptr_t) (ptr) + (tag) \
+ : (EMACS_INT) (((EMACS_UINT) (tag) << VALBITS) + (uintptr_t) (ptr)))
/* Yield an integer that contains a symbol tag along with OFFSET.
OFFSET should be the offset in bytes from 'lispsym' to the symbol. */
PVEC_WINDOW_CONFIGURATION,
PVEC_SUBR,
PVEC_OTHER,
+ PVEC_XWIDGET,
+ PVEC_XWIDGET_VIEW,
+
/* These should be last, check internal_equal to see why. */
PVEC_COMPILED,
PVEC_CHAR_TABLE,
XSYMBOL (Lisp_Object a)
{
eassert (SYMBOLP (a));
- uintptr_t i = (uintptr_t) XUNTAG (a, Lisp_Symbol);
+ intptr_t i = (intptr_t) XUNTAG (a, Lisp_Symbol);
void *p = (char *) lispsym + i;
return p;
}
/* Mark STR as a unibyte string. */
#define STRING_SET_UNIBYTE(STR) \
do { \
- if (EQ (STR, empty_multibyte_string)) \
+ if (XSTRING (STR)->size == 0) \
(STR) = empty_unibyte_string; \
else \
XSTRING (STR)->size_byte = -1; \
ASCII characters in advance. */
#define STRING_SET_MULTIBYTE(STR) \
do { \
- if (EQ (STR, empty_unibyte_string)) \
+ if (XSTRING (STR)->size == 0) \
(STR) = empty_multibyte_string; \
else \
XSTRING (STR)->size_byte = XSTRING (STR)->size; \
/* Make sure that sub char-table contents slot is where we think it is. */
verify (offsetof (struct Lisp_Sub_Char_Table, contents)
- == offsetof (struct Lisp_Vector, contents[SUB_CHAR_TABLE_OFFSET]));
+ == (offsetof (struct Lisp_Vector, contents)
+ + SUB_CHAR_TABLE_OFFSET * sizeof (Lisp_Object)));
/***********************************************************************
Symbols
/* For markers that point somewhere,
this is used to chain of all the markers in a given buffer. */
/* We could remove it and use an array in buffer_text instead.
- That would also allow to preserve it ordered. */
+ That would also allow us to preserve it ordered. */
struct Lisp_Marker *next;
/* This is the char position where the marker points. */
ptrdiff_t charpos;
ptrdiff_t *, ptrdiff_t *);
/* Defined in alloc.c. */
+extern void *my_heap_start (void);
extern void check_pure_size (void);
extern void free_misc (Lisp_Object);
extern void allocate_string_data (struct Lisp_String *, EMACS_INT, EMACS_INT);
#if defined REL_ALLOC && !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
extern void refill_memory_reserve (void);
#endif
+#ifdef DOUG_LEA_MALLOC
+extern void alloc_unexec_pre (void);
+extern void alloc_unexec_post (void);
+#else
+INLINE void alloc_unexec_pre (void) {}
+INLINE void alloc_unexec_post (void) {}
+#endif
extern const char *pending_malloc_warning;
extern Lisp_Object zero_vector;
extern Lisp_Object *stack_base;
#ifdef HAVE_MODULES
/* Defined in alloc.c. */
-extern Lisp_Object make_user_ptr (void (*finalizer) (void*), void *p);
+extern Lisp_Object make_user_ptr (void (*finalizer) (void *), void *p);
/* Defined in emacs-module.c. */
extern void module_init (void);
-extern void mark_modules (void);
extern void syms_of_module (void);
#endif
extern void syms_of_fontset (void);
#endif
+/* Defined in inotify.c */
+#ifdef HAVE_INOTIFY
+extern void syms_of_inotify (void);
+#endif
+
+/* Defined in kqueue.c */
+#ifdef HAVE_KQUEUE
+extern void globals_of_kqueue (void);
+extern void syms_of_kqueue (void);
+#endif
+
/* Defined in gfilenotify.c */
#ifdef HAVE_GFILENOTIFY
extern void globals_of_gfilenotify (void);
extern void syms_of_gfilenotify (void);
#endif
-/* Defined in inotify.c */
-#ifdef HAVE_INOTIFY
-extern void syms_of_inotify (void);
-#endif
-
#ifdef HAVE_W32NOTIFY
/* Defined on w32notify.c. */
extern void syms_of_w32notify (void);
This feature is experimental and requires careful debugging.
Build with CPPFLAGS='-DUSE_STACK_LISP_OBJECTS=0' to disable it. */
+#if (!defined USE_STACK_LISP_OBJECTS \
+ && defined __GNUC__ && !defined __clang__ \
+ && !(4 < __GNUC__ + (3 < __GNUC_MINOR__ + (2 <= __GNUC_PATCHLEVEL__))))
+ /* Work around GCC bugs 36584 and 35271, which were fixed in GCC 4.3.2. */
+# define USE_STACK_LISP_OBJECTS false
+#endif
#ifndef USE_STACK_LISP_OBJECTS
# define USE_STACK_LISP_OBJECTS true
#endif