Add s390 backend.

elfcpp/
	* s390.h: New file.

gold/
	* s390.cc: New file.
	* Makefile.am (TARGETSOURCES): Add s390.cc.
	(ALL_TARGETOBJS): Add s390.o.
	* Makefile.in: Regenerate.
	* configure.ac: Add s390 support.
	* configure: Regenerate.
	* configure.tgt: Add s390-*-* and s390x-*-*.
	* testsuite/icf_safe_test.sh (arch_specific_safe_fold): Add s390
	support.

2 files changed, 122 insertions, 0 deletions

diff --git a/elfcpp/ChangeLog b/elfcpp/ChangeLog
index 24df27b..2d0e7c7 100644
--- a/elfcpp/ChangeLog
+++ b/elfcpp/ChangeLog
@@ -1,3 +1,7 @@
+2015-10-28  Marcin Kościelnicki  <koriakin@0x04.net>
+
+	* s390.h: New file.
+
 2015-10-22  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* x86_64.h (R_X86_64_GOTPCRELX): New.
diff --git a/elfcpp/s390.h b/elfcpp/s390.h
new file mode 100644
index 0000000..a368acd
--- /dev/null
+++ b/elfcpp/s390.h
@@ -0,0 +1,118 @@
+// s390.h -- ELF definitions specific to EM_S390  -*- C++ -*-
+
+// Copyright (C) 2015 Free Software Foundation, Inc.
+// Written by Marcin Kościelnicki <koriakin@0x04.net>.
+
+// This file is part of elfcpp.
+   
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library 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 Library 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 Library Public License restrictions do apply in other
+// respects; for example, they cover modification of the file, and
+/// distribution when not linked into a combined executable.)
+
+// This program 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
+// Library General Public License for more details.
+
+// You should have received a copy of the GNU Library General Public
+// License along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+// 02110-1301, USA.
+
+#ifndef ELFCPP_S390_H
+#define ELFCPP_S390_H
+
+namespace elfcpp
+{
+
+enum
+{
+  // Original 31-bit ABI.
+  R_390_NONE = 0,           // No reloc.
+  R_390_8 = 1,              // Direct 8 bit.
+  R_390_12 = 2,             // Direct 12 bit.
+  R_390_16 = 3,             // Direct 16 bit.
+  R_390_32 = 4,             // Direct 32 bit.
+  R_390_PC32 = 5,           // PC relative 32 bit.
+  R_390_GOT12 = 6,          // 12 bit GOT offset.
+  R_390_GOT32 = 7,          // 32 bit GOT offset.
+  R_390_PLT32 = 8,          // 32 bit PC relative PLT address.
+  R_390_COPY = 9,           // Copy symbol at runtime.
+  R_390_GLOB_DAT = 10,      // Create GOT entry.
+  R_390_JMP_SLOT = 11,      // Create PLT entry.
+  R_390_RELATIVE = 12,      // Adjust by program base.
+  R_390_GOTOFF32 = 13,      // 32 bit offset to GOT.
+  R_390_GOTPC = 14,         // 32 bit PC relative offset to GOT.
+  R_390_GOT16 = 15,         // 16 bit GOT offset.
+  R_390_PC16 = 16,          // PC relative 16 bit.
+  R_390_PC16DBL = 17,       // PC relative 16 bit shifted by 1.
+  R_390_PLT16DBL = 18,      // 16 bit PC rel. PLT shifted by 1.
+  // New 64-bit ABI.
+  R_390_PC32DBL = 19,       // PC relative 32 bit shifted by 1.
+  R_390_PLT32DBL = 20,      // 32 bit PC rel. PLT shifted by 1.
+  R_390_GOTPCDBL = 21,      // 32 bit PC rel. GOT shifted by 1.
+  R_390_64 = 22,            // Direct 64 bit.
+  R_390_PC64 = 23,          // PC relative 64 bit.
+  R_390_GOT64 = 24,         // 64 bit GOT offset.
+  R_390_PLT64 = 25,         // 64 bit PC relative PLT address.
+  R_390_GOTENT = 26,        // 32 bit PC rel. to GOT entry >> 1.
+  // Extensions.
+  R_390_GOTOFF16 = 27,      // 16 bit offset to GOT.
+  R_390_GOTOFF64 = 28,      // 64 bit offset to GOT.
+  R_390_GOTPLT12 = 29,      // 12 bit offset to jump slot.
+  R_390_GOTPLT16 = 30,      // 16 bit offset to jump slot.
+  R_390_GOTPLT32 = 31,      // 32 bit offset to jump slot.
+  R_390_GOTPLT64 = 32,      // 64 bit offset to jump slot.
+  R_390_GOTPLTENT = 33,     // 32 bit rel. offset to jump slot.
+  R_390_PLTOFF16 = 34,      // 16 bit offset from GOT to PLT.
+  R_390_PLTOFF32 = 35,      // 32 bit offset from GOT to PLT.
+  R_390_PLTOFF64 = 36,      // 16 bit offset from GOT to PLT.
+  // TLS extensions.
+  R_390_TLS_LOAD = 37,      // Tag for load insn in TLS code.
+  R_390_TLS_GDCALL = 38,    // Tag for function call in general dynamic TLS code.
+  R_390_TLS_LDCALL = 39,    // Tag for function call in local dynamic TLS code.
+  R_390_TLS_GD32 = 40,      // Direct 32 bit for general dynamic thread local data.
+  R_390_TLS_GD64 = 41,      // Direct 64 bit for general dynamic thread local data.
+  R_390_TLS_GOTIE12 = 42,   // 12 bit GOT offset for static TLS block offset.
+  R_390_TLS_GOTIE32 = 43,   // 32 bit GOT offset for static TLS block offset.
+  R_390_TLS_GOTIE64 = 44,   // 64 bit GOT offset for static TLS block offset.
+  R_390_TLS_LDM32 = 45,     // Direct 32 bit for local dynamic thread local data in LD code.
+  R_390_TLS_LDM64 = 46,     // Direct 64 bit for local dynamic thread local data in LD code.
+  R_390_TLS_IE32 = 47,      // 32 bit address of GOT entry for negated static TLS block offset.
+  R_390_TLS_IE64 = 48,      // 64 bit address of GOT entry for negated static TLS block offset.
+  R_390_TLS_IEENT = 49,     // 32 bit rel. offset to GOT entry for negated static TLS block offset.
+  R_390_TLS_LE32 = 50,      // 32 bit negated offset relative to static TLS block.
+  R_390_TLS_LE64 = 51,      // 64 bit negated offset relative to static TLS block.
+  R_390_TLS_LDO32 = 52,     // 32 bit offset relative to TLS block.
+  R_390_TLS_LDO64 = 53,     // 64 bit offset relative to TLS block.
+  R_390_TLS_DTPMOD = 54,    // ID of module containing symbol.
+  R_390_TLS_DTPOFF = 55,    // Offset in TLS block.
+  R_390_TLS_TPOFF = 56,     // Negate offset in static TLS block.
+  // Yet more misc extensions.
+  R_390_20 = 57,            // Direct 20 bit.
+  R_390_GOT20 = 58,         // 20 bit GOT offset.
+  R_390_GOTPLT20 = 59,      // 20 bit offset to jump slot.
+  R_390_TLS_GOTIE20 = 60,   // 20 bit GOT offset for static TLS block offset.
+  R_390_IRELATIVE = 61,     // IFUNC relocation.
+  R_390_PC12DBL = 62,       // PC relative 12 bit shifted by 1.
+  R_390_PLT12DBL = 63,      // 12 bit PC rel. PLT shifted by 1.
+  R_390_PC24DBL = 64,       // PC relative 24 bit shifted by 1.
+  R_390_PLT24DBL = 65,      // 24 bit PC rel. PLT shifted by 1.
+  // GNU vtable garbage collection extensions.
+  R_390_GNU_VTINHERIT = 250,
+  R_390_GNU_VTENTRY = 251,
+};
+
+} // End namespace elfcpp.
+
+#endif // !defined(ELFCPP_S390_H)