diff options
Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/config/darwin-crt2.c')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/config/darwin-crt2.c | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/config/darwin-crt2.c b/gcc-4.2.1-5666.3/gcc/config/darwin-crt2.c deleted file mode 100644 index 69408d389..000000000 --- a/gcc-4.2.1-5666.3/gcc/config/darwin-crt2.c +++ /dev/null @@ -1,158 +0,0 @@ -/* KeyMgr backwards-compatibility support for Darwin. - Copyright (C) 2001, 2002, 2004 Free Software Foundation, 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) any later -version. - -In addition to the permissions in the GNU General Public License, the -Free Software Foundation gives you unlimited permission to link the -compiled version of this file into combinations with other programs, -and to distribute those combinations without any restriction coming -from the use of this file. (The General Public License restrictions -do apply in other respects; for example, they cover modification of -the file, and distribution when not linked into a combine -executable.) - -GCC is distributed in the hope that it will be useful, but WITHOUT ANY -WARRANTY; without even the implied warranty of MERCHANTABILITY or -FITNESS FOR A PARTICULAR PURPOSE. See the 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. */ - -/* It is incorrect to include config.h here, because this file is being - compiled for the target, and hence definitions concerning only the host - do not apply. */ - -#include "tconfig.h" -#include "tsystem.h" - -/* This file doesn't do anything useful on non-powerpc targets, since they - don't have backwards compatibility anyway. */ - -#ifdef __ppc__ - -/* Homemade decls substituting for getsect.h and dyld.h, so cross - compilation works. */ -struct mach_header; -extern char *getsectdatafromheader (struct mach_header *, const char *, - const char *, unsigned long *); -extern void _dyld_register_func_for_add_image - (void (*) (struct mach_header *, unsigned long)); -extern void _dyld_register_func_for_remove_image - (void (*) (struct mach_header *, unsigned long)); - -extern void __darwin_gcc3_preregister_frame_info (void); - -/* These are from "keymgr.h". */ -extern void _init_keymgr (void); -extern void *_keymgr_get_and_lock_processwide_ptr (unsigned key); -extern void _keymgr_set_and_unlock_processwide_ptr (unsigned key, void *ptr); - -extern void *__keymgr_global[]; -typedef struct _Sinfo_Node { - unsigned int size ; /*size of this node*/ - unsigned short major_version ; /*API major version.*/ - unsigned short minor_version ; /*API minor version.*/ - } _Tinfo_Node ; - -/* KeyMgr 3.x is the first one supporting GCC3 stuff natively. */ -#define KEYMGR_API_MAJOR_GCC3 3 -/* ... with these keys. */ -#define KEYMGR_GCC3_LIVE_IMAGE_LIST 301 /* loaded images */ -#define KEYMGR_GCC3_DW2_OBJ_LIST 302 /* Dwarf2 object list */ - -/* Node of KEYMGR_GCC3_LIVE_IMAGE_LIST. Info about each resident image. */ -struct live_images { - unsigned long this_size; /* sizeof (live_images) */ - struct mach_header *mh; /* the image info */ - unsigned long vm_slide; - void (*destructor)(struct live_images *); /* destructor for this */ - struct live_images *next; - unsigned int examined_p; - void *fde; - void *object_info; - unsigned long info[2]; /* Future use. */ -}; - - -/* These routines are used only on Darwin versions before 10.2. - Later versions have equivalent code in the system. - Eventually, they might go away, although it might be a long time... */ - -static void darwin_unwind_dyld_remove_image_hook - (struct mach_header *m, unsigned long s); -static void darwin_unwind_dyld_remove_image_hook - (struct mach_header *m, unsigned long s); -extern void __darwin_gcc3_preregister_frame_info (void); - -static void -darwin_unwind_dyld_add_image_hook (struct mach_header *mh, unsigned long slide) -{ - struct live_images *l = (struct live_images *)calloc (1, sizeof (*l)); - l->mh = mh; - l->vm_slide = slide; - l->this_size = sizeof (*l); - l->next = (struct live_images *) - _keymgr_get_and_lock_processwide_ptr (KEYMGR_GCC3_LIVE_IMAGE_LIST); - _keymgr_set_and_unlock_processwide_ptr (KEYMGR_GCC3_LIVE_IMAGE_LIST, l); -} - -static void -darwin_unwind_dyld_remove_image_hook (struct mach_header *m, unsigned long s) -{ - struct live_images *top, **lip, *destroy = NULL; - - /* Look for it in the list of live images and delete it. */ - - top = (struct live_images *) - _keymgr_get_and_lock_processwide_ptr (KEYMGR_GCC3_LIVE_IMAGE_LIST); - for (lip = ⊤ *lip != NULL; lip = &(*lip)->next) - { - if ((*lip)->mh == m && (*lip)->vm_slide == s) - { - destroy = *lip; - *lip = destroy->next; /* unlink DESTROY */ - - if (destroy->this_size != sizeof (*destroy)) /* sanity check */ - abort (); - - break; - } - } - _keymgr_set_and_unlock_processwide_ptr (KEYMGR_GCC3_LIVE_IMAGE_LIST, top); - - /* Now that we have unlinked this from the image list, toss it. */ - if (destroy != NULL) - { - if (destroy->destructor != NULL) - (*destroy->destructor) (destroy); - free (destroy); - } -} - -void -__darwin_gcc3_preregister_frame_info (void) -{ - const _Tinfo_Node *info; - _init_keymgr (); - info = (_Tinfo_Node *)__keymgr_global[2]; - if (info != NULL) - { - if (info->major_version >= KEYMGR_API_MAJOR_GCC3) - return; - /* Otherwise, use our own add_image_hooks. */ - } - - _dyld_register_func_for_add_image (darwin_unwind_dyld_add_image_hook); - _dyld_register_func_for_remove_image (darwin_unwind_dyld_remove_image_hook); -} - -#endif /* __ppc__ */ |