Squashed 'third_party/elfutils/' content from commit 555e15e
Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/backends/ppc64_init.c b/backends/ppc64_init.c
new file mode 100644
index 0000000..e567033
--- /dev/null
+++ b/backends/ppc64_init.c
@@ -0,0 +1,110 @@
+/* Initialization of PPC64 specific backend library.
+ Copyright (C) 2004, 2005, 2006, 2007, 2008, 2013, 2014 Red Hat, Inc.
+ This file is part of elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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 copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <string.h>
+
+#define BACKEND ppc64_
+#define RELOC_PREFIX R_PPC64_
+#include "libebl_CPU.h"
+
+/* This defines the common reloc hooks based on ppc64_reloc.def. */
+#include "common-reloc.c"
+
+
+const char *
+ppc64_init (Elf *elf __attribute__ ((unused)),
+ GElf_Half machine __attribute__ ((unused)),
+ Ebl *eh,
+ size_t ehlen)
+{
+ /* Check whether the Elf_BH object has a sufficent size. */
+ if (ehlen < sizeof (Ebl))
+ return NULL;
+
+ /* We handle it. */
+ eh->name = "PowerPC 64-bit";
+ ppc64_init_reloc (eh);
+ HOOK (eh, reloc_simple_type);
+ HOOK (eh, dynamic_tag_name);
+ HOOK (eh, dynamic_tag_check);
+ HOOK (eh, machine_flag_check);
+ HOOK (eh, copy_reloc_p);
+ HOOK (eh, check_special_symbol);
+ HOOK (eh, check_st_other_bits);
+ HOOK (eh, bss_plt_p);
+ HOOK (eh, return_value_location);
+ HOOK (eh, register_info);
+ HOOK (eh, syscall_abi);
+ HOOK (eh, core_note);
+ HOOK (eh, auxv_info);
+ HOOK (eh, check_object_attribute);
+ HOOK (eh, abi_cfi);
+ /* gcc/config/ #define DWARF_FRAME_REGISTERS. */
+ eh->frame_nregs = (114 - 1) + 32;
+ HOOK (eh, set_initial_registers_tid);
+ HOOK (eh, dwarf_to_regno);
+ HOOK (eh, unwind);
+ HOOK (eh, resolve_sym_value);
+
+ /* Find the function descriptor .opd table for resolve_sym_value. */
+ if (elf != NULL)
+ {
+ GElf_Ehdr ehdr_mem, *ehdr = gelf_getehdr (elf, &ehdr_mem);
+ if (ehdr != NULL && ehdr->e_type != ET_REL)
+ {
+ /* We could also try through DT_PPC64_OPD and DT_PPC64_OPDSZ. */
+ GElf_Shdr opd_shdr_mem, *opd_shdr;
+ Elf_Scn *scn = NULL;
+ while ((scn = elf_nextscn (elf, scn)) != NULL)
+ {
+ opd_shdr = gelf_getshdr (scn, &opd_shdr_mem);
+ if (opd_shdr != NULL
+ && (opd_shdr->sh_flags & SHF_ALLOC) != 0
+ && opd_shdr->sh_type == SHT_PROGBITS
+ && opd_shdr->sh_size > 0)
+ {
+ const char *name = elf_strptr (elf, ehdr->e_shstrndx,
+ opd_shdr->sh_name);
+ if (name != NULL && strcmp (name, ".opd") == 0)
+ {
+ eh->fd_addr = opd_shdr->sh_addr;
+ eh->fd_data = elf_getdata (scn, NULL);
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ return MODVERSION;
+}