Add s390 support

bfd/bfd-in2.h

@@ -1517,6 +1517,9 @@ enum bfd_architecture
 #define bfd_mach_avr4          4
 #define bfd_mach_avr5          5
   bfd_arch_cris,      /* Axis CRIS */
+  bfd_arch_s390,      /* IBM s390 */
+#define bfd_mach_s390_esa      0
+#define bfd_mach_s390_esame    1
   bfd_arch_last
   };
 
@@ -2515,6 +2518,57 @@ value of SUBI insn. */
 into 22 bits. */
   BFD_RELOC_AVR_CALL,
 
+/* Direct 12 bit. */
+  BFD_RELOC_390_12,
+
+/* 12 bit GOT offset. */
+  BFD_RELOC_390_GOT12,
+
+/* 32 bit PC relative PLT address. */
+  BFD_RELOC_390_PLT32,
+
+/* Copy symbol at runtime. */
+  BFD_RELOC_390_COPY,
+
+/* Create GOT entry. */
+  BFD_RELOC_390_GLOB_DAT,
+
+/* Create PLT entry. */
+  BFD_RELOC_390_JMP_SLOT,
+
+/* Adjust by program base. */
+  BFD_RELOC_390_RELATIVE,
+
+/* 32 bit PC relative offset to GOT. */
+  BFD_RELOC_390_GOTPC,
+
+/* 16 bit GOT offset. */
+  BFD_RELOC_390_GOT16,
+
+/* PC relative 16 bit shifted by 1. */
+  BFD_RELOC_390_PC16DBL,
+
+/* 16 bit PC rel. PLT shifted by 1. */
+  BFD_RELOC_390_PLT16DBL,
+
+/* PC relative 32 bit shifted by 1. */
+  BFD_RELOC_390_PC32DBL,
+
+/* 32 bit PC rel. PLT shifted by 1. */
+  BFD_RELOC_390_PLT32DBL,
+
+/* 32 bit PC rel. GOT shifted by 1. */
+  BFD_RELOC_390_GOTPCDBL,
+
+/* 64 bit GOT offset. */
+  BFD_RELOC_390_GOT64,
+
+/* 64 bit PC relative PLT address. */
+  BFD_RELOC_390_PLT64,
+
+/* 32 bit rel. offset to GOT entry. */
+  BFD_RELOC_390_GOTENT,
+
 /* These two relocations are used by the linker to determine which of
 the entries in a C++ virtual function table are actually used.  When
 the --gc-sections option is given, the linker will zero out the entries