build: Don't include <config.h> in native programs when cross-compiling.
[bpt/guile.git] / libguile / snarf.h
index 9eaccf6..1655e2c 100644 (file)
@@ -3,7 +3,8 @@
 #ifndef SCM_SNARF_H
 #define SCM_SNARF_H
 
-/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2003, 2004, 2006, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+ *   2004, 2006, 2009, 2010, 2011, 2014 Free Software Foundation, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public License
 
 /* Macros for snarfing initialization actions from C source. */
 
-#if defined(__cplusplus) || defined(GUILE_CPLUSPLUS_SNARF)
+/* Casting to a function that can take any number of arguments.  */
+#define SCM_FUNC_CAST_ARBITRARY_ARGS  scm_t_subr
 
-/* This used to be "SCM (*)(...)" but GCC on RedHat 7.1 doesn't seem
-   to like it.
- */
-#define SCM_FUNC_CAST_ARBITRARY_ARGS SCM (*)()
-
-#else
-#define SCM_FUNC_CAST_ARBITRARY_ARGS SCM (*)()
-#endif
 
-#if (defined SCM_ALIGNED) && (SCM_DEBUG_TYPING_STRICTNESS <= 1)
+#ifdef SCM_ALIGNED
 /* We support static allocation of some `SCM' objects.  */
 # define SCM_SUPPORT_STATIC_ALLOCATION
 #endif
  * The SCM_SNARF_INIT text goes into the corresponding .x file
  * up through the first occurrence of SCM_SNARF_DOC_START on that
  * line, if any.
+ *
+ * Some debugging options can cause the preprocessor to echo #define
+ * directives to its output. Keeping the snarfing markers on separate
+ * lines prevents guile-snarf from inadvertently snarfing the definition
+ * of SCM_SNARF_INIT if those options are in effect.
  */
 
 #ifdef SCM_MAGIC_SNARF_INITS
 # define SCM_SNARF_HERE(X)
-# define SCM_SNARF_INIT(X) ^^ X ^:^
+# define SCM_SNARF_INIT_PREFIX ^^
+# define SCM_SNARF_INIT(X) SCM_SNARF_INIT_PREFIX X ^:^
 # define SCM_SNARF_DOCS(TYPE, CNAME, FNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
 #else
 # ifdef SCM_MAGIC_SNARF_DOCS
@@ -87,7 +87,7 @@ DOCSTRING ^^ }
 
 #define SCM_DEFINE_GSUBR(FNAME, PRIMNAME, REQ, OPT, VAR, ARGLIST, DOCSTRING) \
 SCM_SNARF_HERE(\
-static const char s_ ## FNAME [] = PRIMNAME; \
+SCM_UNUSED static const char s_ ## FNAME [] = PRIMNAME; \
 SCM FNAME ARGLIST\
 )\
 SCM_SNARF_INIT(\
@@ -99,21 +99,35 @@ SCM_SNARF_DOCS(primitive, FNAME, PRIMNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
 #ifdef SCM_SUPPORT_STATIC_ALLOCATION
 
 /* Static subr allocation.  */
+/* FIXME: how to verify that req + opt + rest < 11, all are positive, etc? */
 #define SCM_DEFINE(FNAME, PRIMNAME, REQ, OPT, VAR, ARGLIST, DOCSTRING) \
 SCM_SYMBOL (scm_i_paste (FNAME, __name), PRIMNAME);                    \
-SCM_SNARF_HERE(                                                                \
-  static const char scm_i_paste (s_, FNAME) [] = PRIMNAME;             \
-  SCM_IMMUTABLE_SUBR (scm_i_paste (FNAME, __subr),                     \
-                     scm_i_paste (FNAME, __name),                      \
-                     REQ, OPT, VAR, &FNAME);                           \
+SCM_SNARF_HERE(                                                                \
+  SCM_UNUSED static const char scm_i_paste (s_, FNAME) [] = PRIMNAME;  \
+  SCM_API SCM FNAME ARGLIST;                                           \
+  SCM_IMMUTABLE_POINTER (scm_i_paste (FNAME, __subr_foreign),           \
+                         (scm_t_bits) &FNAME); /* the subr */           \
+  SCM_STATIC_SUBR_OBJVECT (scm_i_paste (FNAME, __raw_objtable),         \
+                           /* FIXME: directly be the foreign */         \
+                           SCM_BOOL_F);                                 \
+  /* FIXME: be immutable. grr */                                        \
+  SCM_STATIC_PROGRAM (scm_i_paste (FNAME, __subr),                     \
+                      SCM_BOOL_F,                                       \
+                      SCM_PACK (&scm_i_paste (FNAME, __raw_objtable)),  \
+                      SCM_BOOL_F);                                      \
   SCM FNAME ARGLIST                                                    \
 )                                                                      \
-SCM_SNARF_INIT(                                                                \
+SCM_SNARF_INIT(                                                        \
+  /* Initialize the foreign.  */                                        \
+  scm_i_paste (FNAME, __raw_objtable)[2] = scm_i_paste (FNAME, __subr_foreign); \
   /* Initialize the procedure name (an interned symbol).  */           \
-  scm_i_paste (FNAME, __subr_meta_info)[0] = scm_i_paste (FNAME, __name); \
+  scm_i_paste (FNAME, __raw_objtable)[3] = scm_i_paste (FNAME, __name); \
+  /* Initialize the objcode trampoline.  */                             \
+  SCM_SET_CELL_OBJECT (scm_i_paste (FNAME, __subr), 1,                  \
+                       scm_subr_objcode_trampoline (REQ, OPT, VAR));    \
                                                                        \
   /* Define the subr.  */                                              \
-  scm_c_define (scm_i_paste (s_, FNAME), scm_i_paste (FNAME, __subr)); \
+  scm_define (scm_i_paste (FNAME, __name), scm_i_paste (FNAME, __subr)); \
 )                                                                      \
 SCM_SNARF_DOCS(primitive, FNAME, PRIMNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
 
@@ -127,7 +141,7 @@ SCM_SNARF_DOCS(primitive, FNAME, PRIMNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
 
 #define SCM_PRIMITIVE_GENERIC(FNAME, PRIMNAME, REQ, OPT, VAR, ARGLIST, DOCSTRING) \
 SCM_SNARF_HERE(\
-static const char s_ ## FNAME [] = PRIMNAME; \
+SCM_UNUSED static const char s_ ## FNAME [] = PRIMNAME; \
 static SCM g_ ## FNAME; \
 SCM FNAME ARGLIST\
 )\
@@ -141,7 +155,7 @@ SCM_SNARF_DOCS(primitive, FNAME, PRIMNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
 
 #define SCM_DEFINE_PUBLIC(FNAME, PRIMNAME, REQ, OPT, VAR, ARGLIST, DOCSTRING) \
 SCM_SNARF_HERE(\
-static const char s_ ## FNAME [] = PRIMNAME; \
+SCM_UNUSED static const char s_ ## FNAME [] = PRIMNAME; \
 SCM FNAME ARGLIST\
 )\
 SCM_SNARF_INIT(\
@@ -151,33 +165,13 @@ scm_c_export (s_ ## FNAME, NULL); \
 )\
 SCM_SNARF_DOCS(primitive, FNAME, PRIMNAME, ARGLIST, REQ, OPT, VAR, DOCSTRING)
 
-#define SCM_DEFINE1(FNAME, PRIMNAME, TYPE, ARGLIST, DOCSTRING) \
-SCM_SNARF_HERE(\
-static const char s_ ## FNAME [] = PRIMNAME; \
-SCM FNAME ARGLIST\
-)\
-SCM_SNARF_INIT(scm_c_define_subr (s_ ## FNAME, TYPE, FNAME); ) \
-SCM_SNARF_DOCS(1, FNAME, PRIMNAME, ARGLIST, 2, 0, 0, DOCSTRING)
-
-#define SCM_PRIMITIVE_GENERIC_1(FNAME, PRIMNAME, TYPE, ARGLIST, DOCSTRING) \
-SCM_SNARF_HERE(\
-static const char s_ ## FNAME [] = PRIMNAME; \
-static SCM g_ ## FNAME; \
-SCM FNAME ARGLIST\
-)\
-SCM_SNARF_INIT(\
-g_ ## FNAME = SCM_PACK (0); \
-scm_c_define_subr_with_generic (s_ ## FNAME, TYPE, FNAME, &g_ ## FNAME); \
-)\
-SCM_SNARF_DOCS(1, FNAME, PRIMNAME, ARGLIST, 2, 0, 0, DOCSTRING)
-
 #define SCM_PROC(RANAME, STR, REQ, OPT, VAR, CFN)  \
-SCM_SNARF_HERE(static const char RANAME[]=STR) \
+SCM_SNARF_HERE(SCM_UNUSED static const char RANAME[]=STR) \
 SCM_SNARF_INIT(scm_c_define_gsubr (RANAME, REQ, OPT, VAR, \
                                    (SCM_FUNC_CAST_ARBITRARY_ARGS) CFN))
 
 #define SCM_REGISTER_PROC(RANAME, STR, REQ, OPT, VAR, CFN)  \
-SCM_SNARF_HERE(static const char RANAME[]=STR) \
+SCM_SNARF_HERE(SCM_UNUSED static const char RANAME[]=STR) \
 SCM_SNARF_INIT(scm_c_define_gsubr (RANAME, REQ, OPT, VAR, \
                                    (SCM_FUNC_CAST_ARBITRARY_ARGS) CFN);) \
 SCM_SNARF_DOCS(register, CFN, STR, (), REQ, OPT, VAR, \
@@ -185,7 +179,7 @@ SCM_SNARF_DOCS(register, CFN, STR, (), REQ, OPT, VAR, \
 
 #define SCM_GPROC(RANAME, STR, REQ, OPT, VAR, CFN, GF)  \
 SCM_SNARF_HERE(\
-static const char RANAME[]=STR;\
+SCM_UNUSED static const char RANAME[]=STR;\
 static SCM GF \
 )SCM_SNARF_INIT(\
 GF = SCM_PACK (0);  /* Dirk:FIXME:: Can we safely use #f instead of 0? */ \
@@ -193,27 +187,6 @@ scm_c_define_gsubr_with_generic (RANAME, REQ, OPT, VAR, \
                                  (SCM_FUNC_CAST_ARBITRARY_ARGS) CFN, &GF) \
 )
 
-#define SCM_PROC1(RANAME, STR, TYPE, CFN) \
-SCM_SNARF_HERE(static const char RANAME[]=STR) \
-SCM_SNARF_INIT(\
-scm_c_define_subr (RANAME, TYPE, (SCM_FUNC_CAST_ARBITRARY_ARGS) CFN) \
-)
-
-
-#define SCM_GPROC1(RANAME, STR, TYPE, CFN, GF) \
-SCM_SNARF_HERE(\
-static const char RANAME[]=STR; \
-static SCM GF \
-)SCM_SNARF_INIT(\
-GF = SCM_PACK (0);  /* Dirk:FIXME:: Can we safely use #f instead of 0? */ \
-scm_c_define_subr_with_generic (RANAME, TYPE, \
-                                (SCM_FUNC_CAST_ARBITRARY_ARGS) CFN, &GF) \
-)
-
-#define SCM_SYNTAX(RANAME, STR, TYPE, CFN)  \
-SCM_SNARF_HERE(static const char RANAME[]=STR)\
-SCM_SNARF_INIT(scm_make_synt (RANAME, TYPE, CFN))
-
 #ifdef SCM_SUPPORT_STATIC_ALLOCATION
 
 # define SCM_SYMBOL(c_name, scheme_name)                               \
@@ -236,37 +209,37 @@ SCM_SNARF_INIT(                                                           \
 
 # define SCM_SYMBOL(c_name, scheme_name)                               \
 SCM_SNARF_HERE(static SCM c_name)                                      \
-SCM_SNARF_INIT(c_name = scm_permanent_object (scm_from_locale_symbol (scheme_name)))
+SCM_SNARF_INIT(c_name = scm_from_locale_symbol (scheme_name))
 
 # define SCM_GLOBAL_SYMBOL(c_name, scheme_name)                                \
 SCM_SNARF_HERE(SCM c_name)                                             \
-SCM_SNARF_INIT(c_name = scm_permanent_object (scm_from_locale_symbol (scheme_name)))
+SCM_SNARF_INIT(c_name = scm_from_locale_symbol (scheme_name))
 
 #endif /* !SCM_SUPPORT_STATIC_ALLOCATION */
 
 #define SCM_KEYWORD(c_name, scheme_name) \
 SCM_SNARF_HERE(static SCM c_name) \
-SCM_SNARF_INIT(c_name = scm_permanent_object (scm_from_locale_keyword (scheme_name)))
+SCM_SNARF_INIT(c_name = scm_from_locale_keyword (scheme_name))
 
 #define SCM_GLOBAL_KEYWORD(c_name, scheme_name) \
 SCM_SNARF_HERE(SCM c_name) \
-SCM_SNARF_INIT(c_name = scm_permanent_object (scm_from_locale_keyword (scheme_name)))
+SCM_SNARF_INIT(c_name = scm_from_locale_keyword (scheme_name))
 
 #define SCM_VARIABLE(c_name, scheme_name) \
 SCM_SNARF_HERE(static SCM c_name) \
-SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, SCM_BOOL_F));)
+SCM_SNARF_INIT(c_name = scm_c_define (scheme_name, SCM_BOOL_F);)
 
 #define SCM_GLOBAL_VARIABLE(c_name, scheme_name) \
 SCM_SNARF_HERE(SCM c_name) \
-SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, SCM_BOOL_F));)
+SCM_SNARF_INIT(c_name = scm_c_define (scheme_name, SCM_BOOL_F);)
 
 #define SCM_VARIABLE_INIT(c_name, scheme_name, init_val) \
 SCM_SNARF_HERE(static SCM c_name) \
-SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, init_val));)
+SCM_SNARF_INIT(c_name = scm_c_define (scheme_name, init_val);)
 
 #define SCM_GLOBAL_VARIABLE_INIT(c_name, scheme_name, init_val) \
 SCM_SNARF_HERE(SCM c_name) \
-SCM_SNARF_INIT(c_name = scm_permanent_object (scm_c_define (scheme_name, init_val));)
+SCM_SNARF_INIT(c_name = scm_c_define (scheme_name, init_val);)
 
 #define SCM_MUTEX(c_name) \
 SCM_SNARF_HERE(static scm_t_mutex c_name) \
@@ -337,6 +310,15 @@ SCM_SNARF_INIT(scm_set_smob_apply((tag), (c_name), (req), (opt), (rest));)
 
 #ifdef SCM_SUPPORT_STATIC_ALLOCATION
 
+#define SCM_IMMUTABLE_CELL(c_name, car, cdr)           \
+  static SCM_ALIGNED (8) SCM_UNUSED const scm_t_cell                   \
+       c_name ## _raw_scell =                                          \
+  {                                                                     \
+    SCM_PACK (car),                                                     \
+    SCM_PACK (cdr)                                                      \
+  };                                                                    \
+  static SCM_UNUSED const SCM c_name = SCM_PACK (& c_name ## _raw_scell)
+
 #define SCM_IMMUTABLE_DOUBLE_CELL(c_name, car, cbr, ccr, cdr)          \
   static SCM_ALIGNED (8) SCM_UNUSED const scm_t_cell                   \
   c_name ## _raw_cell [2] =                                            \
@@ -346,6 +328,15 @@ SCM_SNARF_INIT(scm_set_smob_apply((tag), (c_name), (req), (opt), (rest));)
     };                                                                 \
   static SCM_UNUSED const SCM c_name = SCM_PACK (& c_name ## _raw_cell)
 
+#define SCM_STATIC_DOUBLE_CELL(c_name, car, cbr, ccr, cdr)             \
+  static SCM_ALIGNED (8) SCM_UNUSED scm_t_cell                          \
+  c_name ## _raw_cell [2] =                                            \
+    {                                                                  \
+      { SCM_PACK (car), SCM_PACK (cbr) },                              \
+      { SCM_PACK (ccr), SCM_PACK (cdr) }                               \
+    };                                                                 \
+  static SCM_UNUSED SCM c_name = SCM_PACK (& c_name ## _raw_cell)
+
 #define SCM_IMMUTABLE_STRINGBUF(c_name, contents)      \
   static SCM_UNUSED const                              \
   struct                                               \
@@ -368,19 +359,32 @@ SCM_SNARF_INIT(scm_set_smob_apply((tag), (c_name), (req), (opt), (rest));)
                             (scm_t_bits) &scm_i_paste (c_name,         \
                                                        _stringbuf),    \
                             (scm_t_bits) 0,                            \
-                            (scm_t_bits) sizeof (contents) - 1)
-
-#define SCM_IMMUTABLE_SUBR(c_name, name, req, opt, rest, fcn)          \
-  static SCM_UNUSED SCM scm_i_paste (c_name, _meta_info)[2] =          \
-    {                                                                  \
-      SCM_BOOL_F,  /* The name, initialized at run-time.  */           \
-      SCM_EOL      /* The procedure properties.  */                    \
-    };                                                                 \
-  SCM_IMMUTABLE_DOUBLE_CELL (c_name,                                   \
-                            SCM_SUBR_ARITY_TO_TYPE (req, opt, rest),   \
-                            (scm_t_bits) fcn,                          \
-                            (scm_t_bits) 0 /* no generic */,           \
-                            (scm_t_bits) & scm_i_paste (c_name, _meta_info));
+                             (scm_t_bits) (sizeof (contents) - 1))
+
+#define SCM_IMMUTABLE_POINTER(c_name, ptr)             \
+  SCM_IMMUTABLE_CELL (c_name, scm_tc7_pointer, ptr)
+
+/* for primitive-generics, add a foreign to the end */
+#define SCM_STATIC_SUBR_OBJVECT(c_name, foreign)                        \
+  static SCM_ALIGNED (8) SCM c_name[4] =                                \
+  {                                                                     \
+    SCM_PACK (scm_tc7_vector | (2 << 8)),                               \
+    SCM_PACK (0),                                                       \
+    foreign,                                                            \
+    SCM_BOOL_F, /* the name */                                          \
+  }
+
+#define SCM_STATIC_PROGRAM(c_name, objcode, objtable, freevars)         \
+  static SCM_ALIGNED (8) SCM_UNUSED SCM                                 \
+       scm_i_paste (c_name, _raw_cell)[] =                              \
+  {                                                                     \
+    SCM_PACK (scm_tc7_program | SCM_F_PROGRAM_IS_PRIMITIVE),            \
+    objcode,                                                            \
+    objtable,                                                           \
+    freevars                                                            \
+  };                                                                    \
+  static SCM_UNUSED const SCM c_name =                                  \
+    SCM_PACK (& scm_i_paste (c_name, _raw_cell))
 
 #endif /* SCM_SUPPORT_STATIC_ALLOCATION */