/* 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;
# define EMACS_INT_MAX LLONG_MAX
-# define pI "ll"
+# ifdef __MINGW32__
+# define pI "I64"
+# else
+# define pI "ll"
+# endif
# else
# error "INTPTR_MAX too large"
# endif
error !;
#endif
-#ifndef alignas
-# error "alignas not defined"
-#endif
-
#ifdef HAVE_STRUCT_ATTRIBUTE_ALIGNED
# define GCALIGNED __attribute__ ((aligned (GCALIGNMENT)))
#else
(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)))
+# define lisp_h_XUNTAG(a, type) \
+ __builtin_assume_aligned ((void *) (intptr_t) (XLI (a) - (type)), \
+ GCALIGNMENT)
#endif
/* When compiling via gcc -O0, define the key operations as macros, as
extern _Noreturn void wrong_choice (Lisp_Object, Lisp_Object);
/* Defined in emacs.c. */
+#ifdef DOUG_LEA_MALLOC
extern bool might_dump;
+#endif
/* True means Emacs has already been initialized.
Used during startup to detect startup of dumped Emacs. */
extern bool initialized;
except the former expands to an integer constant expression. */
#define XLI_BUILTIN_LISPSYM(iname) TAG_SYMOFFSET ((iname) * sizeof *lispsym)
+/* LISPSYM_INITIALLY (Qfoo) is equivalent to Qfoo except it is
+ designed for use as an initializer, even for a constant initializer. */
+#define LISPSYM_INITIALLY(name) LISP_INITIALLY (XLI_BUILTIN_LISPSYM (i##name))
+
/* Declare extern constants for Lisp symbols. These can be helpful
when using a debugger like GDB, on older platforms where the debug
format does not represent C macros. */
#define DEFINE_LISP_SYMBOL(name) \
DEFINE_GDB_SYMBOL_BEGIN (Lisp_Object, name) \
- DEFINE_GDB_SYMBOL_END (LISP_INITIALLY (XLI_BUILTIN_LISPSYM (i##name)))
+ DEFINE_GDB_SYMBOL_END (LISPSYM_INITIALLY (name))
/* By default, define macros for Qt, etc., as this leads to a bit
better performance in the core Emacs interpreter. A plugin can
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,
/* 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; \
short min_args, max_args;
const char *symbol_name;
const char *intspec;
- const char *doc;
+ EMACS_INT doc;
};
enum char_table_specials
/* 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 hash_put (struct Lisp_Hash_Table *, Lisp_Object, Lisp_Object,
EMACS_UINT);
void hash_remove_from_table (struct Lisp_Hash_Table *, Lisp_Object);
-extern struct hash_table_test hashtest_eq, hashtest_eql, hashtest_equal;
+extern struct hash_table_test const hashtest_eq, hashtest_eql, hashtest_equal;
extern void validate_subarray (Lisp_Object, Lisp_Object, Lisp_Object,
ptrdiff_t, ptrdiff_t *, ptrdiff_t *);
extern Lisp_Object substring_both (Lisp_Object, ptrdiff_t, ptrdiff_t,
ptrdiff_t, ptrdiff_t);
extern void adjust_markers_for_delete (ptrdiff_t, ptrdiff_t,
ptrdiff_t, ptrdiff_t);
+extern void adjust_markers_bytepos (ptrdiff_t, ptrdiff_t,
+ ptrdiff_t, ptrdiff_t, int);
extern void replace_range (ptrdiff_t, ptrdiff_t, Lisp_Object, bool, bool, bool);
extern void replace_range_2 (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
const char *, ptrdiff_t, ptrdiff_t, bool);
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
+extern void alloc_unexec_pre (void);
+extern void alloc_unexec_post (void);
extern const char *pending_malloc_warning;
extern Lisp_Object zero_vector;
extern Lisp_Object *stack_base;
INLINE void (check_cons_list) (void) { lisp_h_check_cons_list (); }
#endif
+/* Defined in gmalloc.c. */
+#if !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC && !defined SYSTEM_MALLOC
+extern size_t __malloc_extra_blocks;
+#endif
+#if !HAVE_DECL_ALIGNED_ALLOC
+extern void *aligned_alloc (size_t, size_t) ATTRIBUTE_MALLOC_SIZE ((2));
+#endif
+extern void malloc_enable_thread (void);
+
#ifdef REL_ALLOC
/* Defined in ralloc.c. */
extern void *r_alloc (void **, size_t) ATTRIBUTE_ALLOC_SIZE ((2));
extern _Noreturn void error (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2);
extern _Noreturn void verror (const char *, va_list)
ATTRIBUTE_FORMAT_PRINTF (1, 0);
+extern Lisp_Object vformat_string (const char *, va_list)
+ ATTRIBUTE_FORMAT_PRINTF (1, 0);
extern void un_autoload (Lisp_Object);
extern Lisp_Object call_debugger (Lisp_Object arg);
extern void *near_C_stack_top (void);
#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);
INLINE void synchronize_system_messages_locale (void) {}
INLINE void synchronize_system_time_locale (void) {}
#endif
+extern char *emacs_strerror (int);
extern void shut_down_emacs (int, Lisp_Object);
/* True means don't do interactive redisplay and don't change tty modes. */
/* True means remove site-lisp directories from load-path. */
extern bool no_site_lisp;
+/* True means put details like time stamps into builds. */
+extern bool build_details;
+
/* Pipe used to send exit notification to the daemon parent at
startup. On Windows, we use a kernel event instead. */
#ifndef WINDOWSNT
extern int wait_reading_process_output (intmax_t, int, int, bool, Lisp_Object,
struct Lisp_Process *, int);
/* Max value for the first argument of wait_reading_process_output. */
-#if __GNUC__ == 3 || (__GNUC__ == 4 && __GNUC_MINOR__ <= 5)
-/* Work around a bug in GCC 3.4.2, known to be fixed in GCC 4.6.3.
+#if GNUC_PREREQ (3, 0, 0) && ! GNUC_PREREQ (4, 6, 0)
+/* Work around a bug in GCC 3.4.2, known to be fixed in GCC 4.6.0.
The bug merely causes a bogus warning, but the warning is annoying. */
# define WAIT_READING_MAX min (TYPE_MAXIMUM (time_t), INTMAX_MAX)
#else
extern void add_gpm_wait_descriptor (int);
extern void delete_gpm_wait_descriptor (int);
#endif
-extern void init_process_emacs (void);
+extern void init_process_emacs (int);
extern void syms_of_process (void);
extern void setup_process_coding_systems (Lisp_Object);
extern void relocate_byte_stack (void);
extern Lisp_Object exec_byte_code (Lisp_Object, Lisp_Object, Lisp_Object,
Lisp_Object, ptrdiff_t, Lisp_Object *);
+extern Lisp_Object get_byte_code_arity (Lisp_Object);
/* Defined in macros.c. */
extern void init_macros (void);
struct terminal;
/* Defined in sysdep.c. */
-#ifndef HAVE_GET_CURRENT_DIR_NAME
-extern char *get_current_dir_name (void);
-#endif
+extern void init_standard_fds (void);
+extern char *emacs_get_current_dir_name (void);
extern void stuff_char (char c);
extern void init_foreground_group (void);
extern void sys_subshell (void);
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__ && ! GNUC_PREREQ (4, 3, 2))
+ /* 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
STACK_CONS (d, Qnil)))) \
: list4 (a, b, c, d))
-/* Check whether stack-allocated strings are ASCII-only. */
+/* Declare NAME as an auto Lisp string if possible, a GC-based one if not.
+ Take its unibyte value from the null-terminated string STR,
+ an expression that should not have side effects.
+ STR's value is not necessarily copied. The resulting Lisp string
+ should not be modified or made visible to user code. */
-#if defined (ENABLE_CHECKING) && USE_STACK_LISP_OBJECTS
-extern const char *verify_ascii (const char *);
-#else
-# define verify_ascii(str) (str)
-#endif
+#define AUTO_STRING(name, str) \
+ AUTO_STRING_WITH_LEN (name, str, strlen (str))
/* Declare NAME as an auto Lisp string if possible, a GC-based one if not.
- Take its value from STR. STR is not necessarily copied and should
- contain only ASCII characters. The resulting Lisp string should
- not be modified or made visible to user code. */
+ Take its unibyte value from the null-terminated string STR with length LEN.
+ STR may have side effects and may contain null bytes.
+ STR's value is not necessarily copied. The resulting Lisp string
+ should not be modified or made visible to user code. */
-#define AUTO_STRING(name, str) \
+#define AUTO_STRING_WITH_LEN(name, str, len) \
Lisp_Object name = \
(USE_STACK_STRING \
? (make_lisp_ptr \
((&(union Aligned_String) \
- {{strlen (str), -1, 0, (unsigned char *) verify_ascii (str)}}.s), \
- Lisp_String)) \
- : build_string (verify_ascii (str)))
+ {{len, -1, 0, (unsigned char *) (str)}}.s), \
+ Lisp_String)) \
+ : make_unibyte_string (str, len))
/* Loop over all tails of a list, checking for cycles.
FIXME: Make tortoise and n internal declarations.