/* Darwin support needed only by C/C++ frontends.
- Copyright (C) 2001, 2003, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2003, 2004, 2005, 2007, 2008, 2010
+ Free Software Foundation, Inc.
Contributed by Apple Computer Inc.
This file is part of GCC.
GCC 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 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to
-the Free Software Foundation, 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "tm.h"
#include "cpplib.h"
#include "tree.h"
-#include "c-pragma.h"
-#include "c-tree.h"
-#include "c-incpath.h"
-#include "c-common.h"
-#include "toplev.h"
+#include "incpath.h"
+#include "c-family/c-common.h"
+#include "c-family/c-pragma.h"
+#include "c-family/c-format.h"
+#include "diagnostic-core.h"
#include "flags.h"
#include "tm_p.h"
#include "cppdefault.h"
#include "prefix.h"
+#include "target.h"
+#include "target-def.h"
/* Pragmas. */
static bool using_frameworks = false;
-/* Maintain a small stack of alignments. This is similar to pragma
- pack's stack, but simpler. */
-
-static void push_field_alignment (int);
-static void pop_field_alignment (void);
-static const char *find_subframework_file (const char *, const char *);
-static void add_system_framework_path (char *);
static const char *find_subframework_header (cpp_reader *pfile, const char *header,
cpp_dir **dirp);
static struct align_stack * field_align_stack = NULL;
+/* Maintain a small stack of alignments. This is similar to pragma
+ pack's stack, but simpler. */
+
static void
push_field_alignment (int bit_alignment)
{
tree local = lookup_name (decl);
if (local && (TREE_CODE (local) == PARM_DECL
|| TREE_CODE (local) == VAR_DECL))
- TREE_USED (local) = 1;
+ {
+ TREE_USED (local) = 1;
+ DECL_READ_P (local) = 1;
+ }
tok = pragma_lex (&x);
if (tok != CPP_COMMA)
break;
BAD ("junk at end of '#pragma ms_struct'");
}
-static struct {
+static struct frameworks_in_use {
size_t len;
const char *name;
cpp_dir* dir;
{
max_frameworks = i*2;
max_frameworks += i == 0;
- frameworks_in_use = xrealloc (frameworks_in_use,
- max_frameworks*sizeof(*frameworks_in_use));
+ frameworks_in_use = XRESIZEVEC (struct frameworks_in_use,
+ frameworks_in_use, max_frameworks);
}
dir_name = XNEWVEC (char, len + 1);
memcpy (dir_name, name, len);
/* Return the value of darwin_macosx_version_min suitable for the
__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ macro,
- so '10.4.2' becomes 1042.
- Print a warning if the version number is not known. */
+ so '10.4.2' becomes 1040. The lowest digit is always zero.
+ Print a warning if the version number can't be understood. */
static const char *
version_as_macro (void)
{
if (! ISDIGIT (darwin_macosx_version_min[3]))
goto fail;
result[2] = darwin_macosx_version_min[3];
- if (darwin_macosx_version_min[4] != '\0')
- {
- if (darwin_macosx_version_min[4] != '.')
- goto fail;
- if (! ISDIGIT (darwin_macosx_version_min[5]))
- goto fail;
- if (darwin_macosx_version_min[6] != '\0')
- goto fail;
- result[3] = darwin_macosx_version_min[5];
- }
- else
- result[3] = '0';
+ if (darwin_macosx_version_min[4] != '\0'
+ && darwin_macosx_version_min[4] != '.')
+ goto fail;
return result;
fail:
- error ("Unknown value %qs of -mmacosx-version-min",
+ error ("unknown value %qs of -mmacosx-version-min",
darwin_macosx_version_min);
return "1000";
}
to be defined and won't work if it isn't. */
builtin_define_with_value ("__APPLE_CC__", "1", false);
- if (darwin_macosx_version_min)
- builtin_define_with_value ("__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__",
- version_as_macro(), false);
+ if (darwin_constant_cfstrings)
+ builtin_define ("__CONSTANT_CFSTRINGS__");
+
+ builtin_define_with_value ("__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__",
+ version_as_macro(), false);
+
+ /* Since we do not (at 4.6) support ObjC gc for the NeXT runtime, the
+ following will cause a syntax error if one tries to compile gc attributed
+ items. However, without this, NeXT system headers cannot be parsed
+ properly (on systems >= darwin 9). */
+ if (flag_objc_gc)
+ {
+ builtin_define ("__strong=__attribute__((objc_gc(strong)))");
+ builtin_define ("__weak=__attribute__((objc_gc(weak)))");
+ builtin_define ("__OBJC_GC__");
+ }
+ else
+ {
+ builtin_define ("__strong=");
+ builtin_define ("__weak=");
+ }
+}
+
+/* Handle C family front-end options. */
+
+static bool
+handle_c_option (size_t code,
+ const char *arg,
+ int value ATTRIBUTE_UNUSED)
+{
+ switch (code)
+ {
+ default:
+ /* Unrecognized options that we said we'd handle turn into
+ errors if not listed here. */
+ return false;
+
+ case OPT_iframework:
+ add_system_framework_path (xstrdup (arg));
+ break;
+
+ case OPT_fapple_kext:
+ ;
+ }
+
+ /* We recognized the option. */
+ return true;
}
+
+#undef TARGET_HANDLE_C_OPTION
+#define TARGET_HANDLE_C_OPTION handle_c_option
+
+struct gcc_targetcm targetcm = TARGETCM_INITIALIZER;
+
+/* Allow ObjC* access to CFStrings. */
+tree
+darwin_objc_construct_string (tree str)
+{
+ if (!darwin_constant_cfstrings)
+ {
+ /* Even though we are not using CFStrings, place our literal
+ into the cfstring_htab hash table, so that the
+ darwin_constant_cfstring_p() function will see it. */
+ darwin_enter_string_into_cfstring_table (str);
+ /* Fall back to NSConstantString. */
+ return NULL_TREE;
+ }
+
+ return darwin_build_constant_cfstring (str);
+}
+
+/* The string ref type is created as CFStringRef by <CFBase.h> therefore, we
+ must match for it explicitly, since it's outside the gcc code. */
+
+bool
+darwin_cfstring_ref_p (const_tree strp)
+{
+ tree tn;
+ if (!strp || TREE_CODE (strp) != POINTER_TYPE)
+ return false;
+
+ tn = TYPE_NAME (strp);
+ if (tn)
+ tn = DECL_NAME (tn);
+ return (tn
+ && IDENTIFIER_POINTER (tn)
+ && !strncmp (IDENTIFIER_POINTER (tn), "CFStringRef", 8));
+}
+
+/* At present the behavior of this is undefined and it does nothing. */
+void
+darwin_check_cfstring_format_arg (tree ARG_UNUSED (format_arg),
+ tree ARG_UNUSED (args_list))
+{
+}
+
+/* The extra format types we recognize. */
+EXPORTED_CONST format_kind_info darwin_additional_format_types[] = {
+ { "CFString", NULL, NULL, NULL, NULL,
+ NULL, NULL,
+ FMT_FLAG_ARG_CONVERT|FMT_FLAG_PARSE_ARG_CONVERT_EXTERNAL, 0, 0, 0, 0, 0, 0,
+ NULL, NULL
+ }
+};
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