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-rw-r--r--ports/sysdeps/arm/dl-irel.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/ports/sysdeps/arm/dl-irel.h b/ports/sysdeps/arm/dl-irel.h
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+++ b/ports/sysdeps/arm/dl-irel.h
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+/* Machine-dependent ELF indirect relocation inline functions.
+   ARM version.
+   Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _DL_IREL_H
+#define _DL_IREL_H
+
+#include <stdio.h>
+#include <unistd.h>
+
+#define ELF_MACHINE_IREL	1
+
+static inline Elf32_Addr
+__attribute ((always_inline))
+elf_ifunc_invoke (Elf32_Addr addr)
+{
+  return ((Elf32_Addr (*) (unsigned long int)) (addr)) (GLRO(dl_hwcap));
+}
+
+static inline void
+__attribute ((always_inline))
+elf_irel (const Elf32_Rel *reloc)
+{
+  Elf32_Addr *const reloc_addr = (void *) reloc->r_offset;
+  const unsigned long int r_type = ELF32_R_TYPE (reloc->r_info);
+
+  if (__builtin_expect (r_type == R_ARM_IRELATIVE, 1))
+    {
+      Elf32_Addr value = elf_ifunc_invoke (*reloc_addr);
+      *reloc_addr = value;
+    }
+  else
+    __libc_fatal ("unexpected reloc type in static binary");
+}
+
+#endif /* dl-irel.h */