binutils-2_38-ia16-dwarf.patch

diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index 2bc40c879e..87c5bcb779 100644
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -3051,6 +3051,7 @@ i386_mach (void)
        return bfd_mach_x64_32;
     }
   else if (!strncmp (default_arch, "i386", 4)
+          || !strncmp (default_arch, "ia16", 4)
           || !strcmp (default_arch, "iamcu"))
     {
       if (cpu_arch_isa == PROCESSOR_IAMCU)
@@ -3215,6 +3216,11 @@ md_begin (void)
 #endif
       x86_cie_data_alignment = -8;
     }
+  else if (flag_code == CODE_16BIT)
+    {
+      x86_dwarf2_return_column = 8;
+      x86_cie_data_alignment = -2;
+    }
   else
     {
       x86_dwarf2_return_column = 8;
@@ -13294,6 +13300,7 @@ const char *md_shortopts = "qnO::";
 #define OPTION_MLFENCE_BEFORE_RET (OPTION_MD_BASE + 33)
 #define OPTION_MUSE_UNALIGNED_VECTOR_MOVE (OPTION_MD_BASE + 34)
 #define OPTION_32_SEGELF (OPTION_MD_BASE + 35)
+#define OPTION_16_SEGELF (OPTION_MD_BASE + 36)
 
 struct option md_longopts[] =
 {
@@ -13305,6 +13312,7 @@ struct option md_longopts[] =
 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
 # ifdef ENABLE_X86_HPA_SEGELF
   {"32-segelf", no_argument, NULL, OPTION_32_SEGELF},
+  {"16-segelf", no_argument, NULL, OPTION_16_SEGELF},
 # endif
   {"x32", no_argument, NULL, OPTION_X32},
   {"mshared", no_argument, NULL, OPTION_MSHARED},
@@ -13449,6 +13457,9 @@ md_parse_option (int c, const char *arg)
     case OPTION_32_SEGELF:
       default_arch = "i386:segelf";
       break;
+    case OPTION_16_SEGELF:
+      default_arch = "ia16:segelf";
+      break;
 # endif
 #endif
 
@@ -14176,6 +14187,14 @@ i386_target_format (void)
 # ifdef ENABLE_X86_HPA_SEGELF
       if (default_arch[4] != 0)
        x86_elf_abi = I386_SEGELF_ABI;
+# endif
+    }
+  else if (!strncmp (default_arch, "ia16", 4))
+    {
+      update_code_flag (CODE_16BIT, 1);
+# ifdef ENABLE_X86_HPA_SEGELF
+      if (default_arch[4] != 0)
+       x86_elf_abi = I386_SEGELF_ABI;
 # endif
     }
   else if (!strcmp (default_arch, "iamcu"))
diff --git a/gas/configure.tgt b/gas/configure.tgt
index a9825d577e..bbfc6d05c6 100644
--- a/gas/configure.tgt
+++ b/gas/configure.tgt
@@ -62,7 +62,7 @@ case ${cpu} in
   fido)                        cpu_type=m68k ;;
   hppa*)               cpu_type=hppa ;;
   i[3-7]86)            cpu_type=i386 arch=i386;;
-  ia16)                        cpu_type=i386 arch=i386;;
+  ia16)                        cpu_type=i386 arch=ia16;;
   ia64)                        cpu_type=ia64 ;;
   ip2k)                        cpu_type=ip2k endian=big ;;
   iq2000)              cpu_type=iq2000 endian=big ;;