summaryrefslogtreecommitdiff
path: root/ports/sysdeps/arm/dl-irel.h
diff options
context:
space:
mode:
Diffstat (limited to 'ports/sysdeps/arm/dl-irel.h')
-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
new file mode 100644
index 0000000000..5b1964e90e
--- /dev/null
+++ b/ports/sysdeps/arm/dl-irel.h
@@ -0,0 +1,51 @@
+/* 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 */