1 files changed, 105 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/config/darwin-crt-tm.c b/gcc-4.9/libgcc/config/darwin-crt-tm.c
new file mode 100644
index 000000000..e11a0afb8
--- /dev/null
+++ b/gcc-4.9/libgcc/config/darwin-crt-tm.c
@@ -0,0 +1,105 @@
+/* Provide the runtime infrastructure for the transactional memory lib.
+   Copyright (C) 2011-2014 Free Software Foundation, Inc.
+   Contributed by Iain Sandoe <iains@gcc.gnu.org>
+
+   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 3, or (at your option) any later
+version.
+
+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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "tsystem.h"
+#include <stddef.h>
+#include <dlfcn.h>
+#include <mach-o/dyld.h>
+#include <mach-o/getsect.h>
+
+#ifdef __LP64__
+#define GET_DATA_TMCT(mh,size) \
+  getsectdatafromheader_64 ((struct mach_header_64*) mh, \
+			    "__DATA", "__tm_clone_table", (uint64_t *)size)
+#else
+#define GET_DATA_TMCT(mh,size) \
+  getsectdatafromheader (mh, "__DATA", "__tm_clone_table", (uint32_t *)size)
+#endif
+
+#define WEAK __attribute__((weak))
+
+extern void _ITM_registerTMCloneTable (void *, size_t) WEAK;
+extern void _ITM_deregisterTMCloneTable (void *) WEAK;
+
+#if defined(START) || defined(END)
+static inline void *getTMCloneTable (const void *f, size_t *tmct_siz)
+{
+  char *tmct_fixed, *tmct = NULL;
+  unsigned int i, img_count; 
+  struct mach_header *mh;
+  Dl_info info;
+  
+  if (! dladdr (f, &info) || info.dli_fbase == NULL)
+    abort ();
+  
+  mh = (struct mach_header *) info.dli_fbase;
+  tmct_fixed = GET_DATA_TMCT (mh, tmct_siz);
+  *tmct_siz /= (sizeof (size_t) * 2);
+  /* No tm_clone_table or no clones. */
+  if (tmct_fixed == NULL || *tmct_siz == 0)
+    return NULL; 
+
+  img_count = _dyld_image_count();
+  for (i = 0; i < img_count && tmct == NULL; i++)
+    {
+      if (mh == _dyld_get_image_header(i))
+	tmct = tmct_fixed + (unsigned long)_dyld_get_image_vmaddr_slide(i); 
+    }
+
+  return tmct;
+}
+#endif
+
+#ifdef START
+
+void __doTMRegistrations (void) __attribute__ ((constructor));
+
+void __doTMRegistrations (void)
+{
+  size_t tmct_siz;
+  void *tmct;
+
+  tmct = getTMCloneTable ((const void *)&__doTMRegistrations, &tmct_siz);
+  if (_ITM_registerTMCloneTable != NULL && tmct != NULL)
+    _ITM_registerTMCloneTable (tmct, (size_t)tmct_siz);
+}
+
+#endif
+
+#ifdef END
+
+void __doTMdeRegistrations (void) __attribute__ ((destructor));
+
+void __doTMdeRegistrations (void)
+{
+  size_t tmct_siz;
+  void *tmct;
+
+  tmct = getTMCloneTable ((const void *)&__doTMdeRegistrations, &tmct_siz);
+  if (_ITM_deregisterTMCloneTable != NULL && tmct != NULL)
+    _ITM_deregisterTMCloneTable (tmct);
+}
+
+#endif