/* Darwin support needed only by C/C++ frontends.
- Copyright (C) 2001, 2003, 2004 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, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, 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 "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 "toplev.h"
+#include "flags.h"
#include "tm_p.h"
+#include "cppdefault.h"
+#include "prefix.h"
+#include "target.h"
+#include "target-def.h"
/* Pragmas. */
-#define BAD(msgid) do { warning (msgid); return; } while (0)
+#define BAD(gmsgid) do { warning (OPT_Wpragmas, gmsgid); return; } while (0)
+#define BAD2(msgid, arg) do { warning (OPT_Wpragmas, msgid, arg); return; } while (0)
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);
+static const char *find_subframework_header (cpp_reader *pfile, const char *header,
+ cpp_dir **dirp);
typedef struct align_stack
{
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)
{
- align_stack *entry = (align_stack *) xmalloc (sizeof (align_stack));
+ align_stack *entry = XNEW (align_stack);
entry->alignment = maximum_field_alignment;
entry->prev = field_align_stack;
const char *arg;
tree t, x;
- if (c_lex (&t) != CPP_NAME)
+ if (pragma_lex (&t) != CPP_NAME)
BAD ("malformed '#pragma options', ignoring");
arg = IDENTIFIER_POINTER (t);
if (strcmp (arg, "align"))
BAD ("malformed '#pragma options', ignoring");
- if (c_lex (&t) != CPP_EQ)
+ if (pragma_lex (&t) != CPP_EQ)
BAD ("malformed '#pragma options', ignoring");
- if (c_lex (&t) != CPP_NAME)
+ if (pragma_lex (&t) != CPP_NAME)
BAD ("malformed '#pragma options', ignoring");
- if (c_lex (&x) != CPP_EOF)
- warning ("junk at end of '#pragma options'");
+ if (pragma_lex (&x) != CPP_EOF)
+ warning (OPT_Wpragmas, "junk at end of '#pragma options'");
arg = IDENTIFIER_POINTER (t);
if (!strcmp (arg, "mac68k"))
else if (!strcmp (arg, "reset"))
pop_field_alignment ();
else
- warning ("malformed '#pragma options align={mac68k|power|reset}', ignoring");
+ BAD ("malformed '#pragma options align={mac68k|power|reset}', ignoring");
}
/* #pragma unused ([var {, var}*]) */
tree decl, x;
int tok;
- if (c_lex (&x) != CPP_OPEN_PAREN)
+ if (pragma_lex (&x) != CPP_OPEN_PAREN)
BAD ("missing '(' after '#pragma unused', ignoring");
while (1)
{
- tok = c_lex (&decl);
+ tok = pragma_lex (&decl);
if (tok == CPP_NAME && decl)
{
tree local = lookup_name (decl);
if (local && (TREE_CODE (local) == PARM_DECL
|| TREE_CODE (local) == VAR_DECL))
- TREE_USED (local) = 1;
- tok = c_lex (&x);
+ {
+ TREE_USED (local) = 1;
+ DECL_READ_P (local) = 1;
+ }
+ tok = pragma_lex (&x);
if (tok != CPP_COMMA)
break;
}
if (tok != CPP_CLOSE_PAREN)
BAD ("missing ')' after '#pragma unused', ignoring");
- if (c_lex (&x) != CPP_EOF)
- warning ("junk at end of '#pragma unused'");
+ if (pragma_lex (&x) != CPP_EOF)
+ BAD ("junk at end of '#pragma unused'");
+}
+
+/* Parse the ms_struct pragma. */
+void
+darwin_pragma_ms_struct (cpp_reader *pfile ATTRIBUTE_UNUSED)
+{
+ const char *arg;
+ tree t;
+
+ if (pragma_lex (&t) != CPP_NAME)
+ BAD ("malformed '#pragma ms_struct', ignoring");
+ arg = IDENTIFIER_POINTER (t);
+
+ if (!strcmp (arg, "on"))
+ darwin_ms_struct = true;
+ else if (!strcmp (arg, "off") || !strcmp (arg, "reset"))
+ darwin_ms_struct = false;
+ else
+ BAD ("malformed '#pragma ms_struct {on|off|reset}', ignoring");
+
+ if (pragma_lex (&t) != CPP_EOF)
+ BAD ("junk at end of '#pragma ms_struct'");
}
-static struct {
+static struct frameworks_in_use {
size_t len;
const char *name;
cpp_dir* dir;
/* Remember which frameworks have been seen, so that we can ensure
that all uses of that framework come from the same framework. DIR
is the place where the named framework NAME, which is of length
- LEN, was found. */
+ LEN, was found. We copy the directory name from NAME, as it will be
+ freed by others. */
static void
add_framework (const char *name, size_t len, cpp_dir *dir)
{
+ char *dir_name;
int i;
for (i = 0; i < num_frameworks; ++i)
{
if (i >= max_frameworks)
{
max_frameworks = i*2;
- frameworks_in_use = xrealloc (frameworks_in_use,
- max_frameworks*sizeof(*frameworks_in_use));
+ max_frameworks += i == 0;
+ frameworks_in_use = XRESIZEVEC (struct frameworks_in_use,
+ frameworks_in_use, max_frameworks);
}
- frameworks_in_use[num_frameworks].name = name;
+ dir_name = XNEWVEC (char, len + 1);
+ memcpy (dir_name, name, len);
+ dir_name[len] = '\0';
+ frameworks_in_use[num_frameworks].name = dir_name;
frameworks_in_use[num_frameworks].len = len;
frameworks_in_use[num_frameworks].dir = dir;
++num_frameworks;
if (fast_dir && dir != fast_dir)
return 0;
- frname = xmalloc (strlen (fname) + dir->len + 2
+ frname = XNEWVEC (char, strlen (fname) + dir->len + 2
+ strlen(".framework/") + strlen("PrivateHeaders"));
strncpy (&frname[0], dir->name, dir->len);
frname_len = dir->len;
strncpy (&frname[frname_len], ".framework/", strlen (".framework/"));
frname_len += strlen (".framework/");
+ if (fast_dir == 0)
+ {
+ frname[frname_len-1] = 0;
+ if (stat (frname, &st) == 0)
+ {
+ /* As soon as we find the first instance of the framework,
+ we stop and never use any later instance of that
+ framework. */
+ add_framework (fname, fname_len, dir);
+ }
+ else
+ {
+ /* If we can't find the parent directory, no point looking
+ further. */
+ free (frname);
+ return 0;
+ }
+ frname[frname_len-1] = '/';
+ }
+
/* Append framework_header_dirs and header file name */
for (i = 0; framework_header_dirs[i].dirName; i++)
{
- strncpy (&frname[frname_len],
+ strncpy (&frname[frname_len],
framework_header_dirs[i].dirName,
framework_header_dirs[i].dirNameLen);
strcpy (&frname[frname_len + framework_header_dirs[i].dirNameLen],
&fname[fname_len]);
if (stat (frname, &st) == 0)
- {
- add_framework (fname, fname_len, dir);
- return frname;
- }
+ return frname;
}
free (frname);
{
char *sfrname;
const char *dot_framework = ".framework/";
- char *bufptr;
- int sfrname_len, i, fname_len;
+ char *bufptr;
+ int sfrname_len, i, fname_len;
struct cpp_dir *fast_dir;
static struct cpp_dir subframe_dir;
struct stat st;
/* Subframework files must have / in the name. */
if (bufptr == 0)
return 0;
-
+
fname_len = bufptr - fname;
fast_dir = find_framework (fname, fname_len);
bufptr = strstr (pname, dot_framework);
/* If the parent header is not of any framework, then this header
- can not be part of any subframework. */
+ cannot be part of any subframework. */
if (!bufptr)
return 0;
/* Now translate. For example, +- bufptr
- fname = CarbonCore/OSUtils.h |
+ fname = CarbonCore/OSUtils.h |
pname = /System/Library/Frameworks/Foundation.framework/Headers/Foundation.h
into
sfrname = /System/Library/Frameworks/Foundation.framework/Frameworks/CarbonCore.framework/Headers/OSUtils.h */
- sfrname = (char *) xmalloc (strlen (pname) + strlen (fname) + 2 +
+ sfrname = XNEWVEC (char, strlen (pname) + strlen (fname) + 2 +
strlen ("Frameworks/") + strlen (".framework/")
+ strlen ("PrivateHeaders"));
-
+
bufptr += strlen (dot_framework);
- sfrname_len = bufptr - pname;
+ sfrname_len = bufptr - pname;
strncpy (&sfrname[0], pname, sfrname_len);
/* Append framework_header_dirs and header file name */
for (i = 0; framework_header_dirs[i].dirName; i++)
{
- strncpy (&sfrname[sfrname_len],
+ strncpy (&sfrname[sfrname_len],
framework_header_dirs[i].dirName,
framework_header_dirs[i].dirNameLen);
strcpy (&sfrname[sfrname_len + framework_header_dirs[i].dirNameLen],
&fname[fname_len]);
-
+
if (stat (sfrname, &st) == 0)
{
if (fast_dir != &subframe_dir)
{
if (fast_dir)
- warning ("subframework include %s conflicts with framework include",
+ warning (0, "subframework include %s conflicts with framework include",
fname);
else
add_framework (fname, fname_len, &subframe_dir);
int cxx_aware = 1;
cpp_dir *p;
- p = xmalloc (sizeof (cpp_dir));
+ p = XNEW (cpp_dir);
p->next = NULL;
p->name = path;
p->sysp = 1 + !cxx_aware;
{
cpp_dir *p;
- p = xmalloc (sizeof (cpp_dir));
+ p = XNEW (cpp_dir);
p->next = NULL;
p->name = path;
p->sysp = 0;
add_cpp_dir_path (p, BRACKET);
}
-static const char *framework_defaults [] =
+static const char *framework_defaults [] =
{
"/System/Library/Frameworks",
"/Library/Frameworks",
- "/Local/Library/Frameworks",
};
+/* Register the GNU objective-C runtime include path if STDINC. */
+
+void
+darwin_register_objc_includes (const char *sysroot, const char *iprefix,
+ int stdinc)
+{
+ const char *fname;
+ size_t len;
+ /* We do not do anything if we do not want the standard includes. */
+ if (!stdinc)
+ return;
+
+ fname = GCC_INCLUDE_DIR "-gnu-runtime";
+
+ /* Register the GNU OBJC runtime include path if we are compiling OBJC
+ with GNU-runtime. */
+
+ if (c_dialect_objc () && !flag_next_runtime)
+ {
+ char *str;
+ /* See if our directory starts with the standard prefix.
+ "Translate" them, i.e. replace /usr/local/lib/gcc... with
+ IPREFIX and search them first. */
+ if (iprefix && (len = cpp_GCC_INCLUDE_DIR_len) != 0 && !sysroot
+ && !strncmp (fname, cpp_GCC_INCLUDE_DIR, len))
+ {
+ str = concat (iprefix, fname + len, NULL);
+ /* FIXME: wrap the headers for C++awareness. */
+ add_path (str, SYSTEM, /*c++aware=*/false, false);
+ }
+
+ /* Should this directory start with the sysroot? */
+ if (sysroot)
+ str = concat (sysroot, fname, NULL);
+ else
+ str = update_path (fname, "");
+
+ add_path (str, SYSTEM, /*c++aware=*/false, false);
+ }
+}
+
/* Register all the system framework paths if STDINC is true and setup
the missing_header callback for subframework searching if any
frameworks had been registered. */
void
-darwin_register_frameworks (int stdinc)
+darwin_register_frameworks (const char *sysroot,
+ const char *iprefix ATTRIBUTE_UNUSED, int stdinc)
{
if (stdinc)
{
/* Setup default search path for frameworks. */
for (i=0; i<sizeof (framework_defaults)/sizeof(const char *); ++i)
{
+ char *str;
+ if (sysroot)
+ str = concat (sysroot, xstrdup (framework_defaults [i]), NULL);
+ else
+ str = xstrdup (framework_defaults[i]);
/* System Framework headers are cxx aware. */
- add_system_framework_path (xstrdup (framework_defaults[i]));
+ add_system_framework_path (str);
}
}
fails to find a header. We search each file in the include stack,
using FUNC, starting from the most deeply nested include and
finishing with the main input file. We stop searching when FUNC
- returns non-zero. */
+ returns nonzero. */
static const char*
-find_subframework_header (cpp_reader *pfile, const char *header)
+find_subframework_header (cpp_reader *pfile, const char *header, cpp_dir **dirp)
{
const char *fname = header;
struct cpp_buffer *b;
{
n = find_subframework_file (fname, cpp_get_path (cpp_get_file (b)));
if (n)
- return n;
+ {
+ /* Logically, the place where we found the subframework is
+ the place where we found the Framework that contains the
+ subframework. This is useful for tracking wether or not
+ we are in a system header. */
+ *dirp = cpp_get_dir (cpp_get_file (b));
+ return n;
+ }
}
return 0;
}
-struct target_c_incpath_s target_c_incpath = C_INCPATH_INIT;
+/* Return the value of darwin_macosx_version_min suitable for the
+ __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ macro,
+ 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)
+{
+ static char result[] = "1000";
+
+ if (strncmp (darwin_macosx_version_min, "10.", 3) != 0)
+ goto fail;
+ if (! ISDIGIT (darwin_macosx_version_min[3]))
+ goto fail;
+ result[2] = darwin_macosx_version_min[3];
+ 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",
+ darwin_macosx_version_min);
+ return "1000";
+}
+
+/* Define additional CPP flags for Darwin. */
+
+#define builtin_define(TXT) cpp_define (pfile, TXT)
+
+void
+darwin_cpp_builtins (cpp_reader *pfile)
+{
+ builtin_define ("__MACH__");
+ builtin_define ("__APPLE__");
+
+ /* __APPLE_CC__ is defined as some old Apple include files expect it
+ to be defined and won't work if it isn't. */
+ builtin_define_with_value ("__APPLE_CC__", "1", 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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