XCOFF disassembler

[Alan Modra <amodra at gmail dot com>]

xcoff (32-bit) objdump accepted but ignored -M options unless
-mpowerpc was also given.  This patch fixes that, leaving the default
as -Mpwr for xcoff.  I've also enabled more tests for xcoff targets.

binutils/
	* configure.ac: Add objdump_private_desc_xcoff for rs6000.
	* configure: Regenerate.
gas/
	* testsuite/gas/ppc/aix.exp: Run for rs6000 too.
	* testsuite/gas/ppc/ppc.exp: Run more tests for non-ELF targets.
	* testsuite/gas/ppc/machine.d: Don't run for PE targets.
opcodes/
	* disassemble.c (disassembler): Use bfd_arch_powerpc entry for
	bfd_arch_rs6000.
	* disassemble.h (print_insn_rs6000): Delete.
	* ppc-dis.c (powerpc_init_dialect): Handle rs6000.
	(disassemble_init_powerpc): Call powerpc_init_dialect for rs6000.
	(print_insn_rs6000): Delete.

diff --git a/binutils/configure.ac b/binutils/configure.ac
index 30898ae..430192b 100644
--- a/binutils/configure.ac
+++ b/binutils/configure.ac
@@ -417,7 +417,7 @@ changequote([,])dnl
 	avr-*-*)
 	  od_vectors="$od_vectors objdump_private_desc_elf32_avr"
 	  ;;
-	powerpc-*-aix*)
+	powerpc*-*-aix* | rs6000-*-aix*)
 	  od_vectors="$od_vectors objdump_private_desc_xcoff"
 	  ;;
         *-*-darwin*)
diff --git a/gas/testsuite/gas/ppc/aix.exp b/gas/testsuite/gas/ppc/aix.exp
index d92a1b8..c0858ea 100644
--- a/gas/testsuite/gas/ppc/aix.exp
+++ b/gas/testsuite/gas/ppc/aix.exp
@@ -56,7 +56,7 @@ proc do_align_test {} {
 }
 
 
-if [istarget powerpc-ibm-aix*] then {
+if { [istarget "powerpc*-*-aix*"] || [istarget "rs6000-*-aix*"] } then {
 
     # Make sure that symbols are correctly aligned 
     do_align_test
diff --git a/gas/testsuite/gas/ppc/machine.d b/gas/testsuite/gas/ppc/machine.d
index 7f9b8b4..b8ec7a3 100644
--- a/gas/testsuite/gas/ppc/machine.d
+++ b/gas/testsuite/gas/ppc/machine.d
@@ -1,5 +1,6 @@
 #objdump: -s -j .text
 #name: PowerPC .machine test
+#not-target: *-*-pe *-*-winnt* *-*-cygwin*
 
 .*
 
diff --git a/gas/testsuite/gas/ppc/ppc.exp b/gas/testsuite/gas/ppc/ppc.exp
index bdce3dc..f3b37de 100644
--- a/gas/testsuite/gas/ppc/ppc.exp
+++ b/gas/testsuite/gas/ppc/ppc.exp
@@ -18,8 +18,33 @@
 # Some PowerPC tests
 #
 
+if { ![istarget "powerpc*-*-*"] && ![istarget "rs6000-*-*"] } then {
+    return
+}
+
+run_dump_test "regnames"
+run_dump_test "misalign"
+run_dump_test "misalign2"
+run_dump_test "machine"
+run_dump_test "simpshft"
+run_dump_test "altivec_and_spe"
+run_list_test "range" "-a32"
+run_dump_test "cell"
+
+if { [istarget "*-*-aix*"]
+     || [istarget "*-*-macos*"]
+     || [istarget "*-*-beos*"] } then {
+    run_dump_test "test1xcoff32"
+    run_dump_test "test2xcoff32"
+    run_dump_test "altivec_xcoff"
+    run_dump_test "altivec_xcoff64"
+}
+
 # These tests are currently ELF specific, only because nobody has
 # converted them to look for XCOFF relocations.
+if { ![is_elf_format] } then {
+    return
+}
 
 if { [istarget powerpc64*-*-*] || [istarget *-*-elf64*]} then {
 # FIXME: Pass -x to objdump as well as -Dr for astest64 and astest2_64.
@@ -28,84 +53,59 @@ if { [istarget powerpc64*-*-*] || [istarget *-*-elf64*]} then {
     run_dump_test "test1elf64"
     run_dump_test "power4"
     run_list_test "range64" "-a64"
-} elseif { [istarget powerpc*-*aix*] } then {
-    run_dump_test "test1xcoff32"
-    run_dump_test "test2xcoff32"
-} elseif { [istarget powerpc*-*-*bsd*] \
-     || [istarget powerpc*-*-elf*] \
-     || [istarget powerpc*-*-eabi*] \
-     || [istarget powerpc*-*-sysv4*] \
-     || [istarget powerpc*-*-linux*] \
-     || [istarget powerpc*-*-solaris*] \
-     || [istarget powerpc*-*-rtems*] } then {
+} else {
     run_dump_test "astest"
     run_dump_test "astest2"
     run_dump_test "test1elf32"
 }
 
-if { [istarget powerpc*-*-*] } then {
-    run_dump_test "regnames"
-    run_dump_test "misalign"
-    run_dump_test "misalign2"
-    if { [is_elf_format] } then {
-	run_dump_test "machine"
-	run_dump_test "common"
-	run_dump_test "476"
-	run_dump_test "a2"
-	run_dump_test "pr21303"
-	run_dump_test "vle"
-	run_dump_test "vle-reloc"
-	run_dump_test "vle-simple-1"
-	run_dump_test "vle-simple-2"
-	run_dump_test "vle-simple-3"
-	run_dump_test "vle-simple-4"
-	run_dump_test "vle-simple-5"
-	run_dump_test "vle-simple-6"
-	run_dump_test "vle-mult-ld-st-insns"
+run_dump_test "common"
+run_dump_test "476"
+run_dump_test "a2"
+run_dump_test "pr21303"
+run_dump_test "vle"
+run_dump_test "vle-reloc"
+run_dump_test "vle-simple-1"
+run_dump_test "vle-simple-2"
+run_dump_test "vle-simple-3"
+run_dump_test "vle-simple-4"
+run_dump_test "vle-simple-5"
+run_dump_test "vle-simple-6"
+run_dump_test "vle-mult-ld-st-insns"
 
-	#fail expected until get_powerpc_dialect() patch not applied
-	setup_xfail "*-*-*"
-	run_dump_test "lsp"
-	run_dump_test "lsp-checks"
-	run_dump_test "efs"
-	run_dump_test "efs2"
-	run_dump_test "spe2"
-	run_dump_test "spe2-checks"
-	run_dump_test "spe"
+#fail expected until get_powerpc_dialect() patch not applied
+setup_xfail "*-*-*"
+run_dump_test "lsp"
 
-	setup_xfail "*-*-*"
-	run_dump_test "spe_ambiguous"
-    }
+run_dump_test "lsp-checks"
+run_dump_test "efs"
+run_dump_test "efs2"
+run_dump_test "spe2"
+run_dump_test "spe2-checks"
+run_dump_test "spe"
 
-    if { [istarget powerpc-*-*aix*] } then {
-	run_dump_test "altivec_xcoff"
-	run_dump_test "altivec_xcoff64"
-    } else {
-	run_dump_test "simpshft"
-	run_dump_test "altivec"
-	run_dump_test "altivec2"
-	run_dump_test "altivec3"
-	run_dump_test "altivec_and_spe"
-	run_dump_test "booke"
-	run_dump_test "e500"
-	run_list_test "e500-ill" "-me500"
-	run_list_test "range" "-a32"
-	run_dump_test "ppc750ps"
-	run_dump_test "e500mc"
-	run_dump_test "e6500"
-	run_dump_test "e500mc64_nop"
-	run_dump_test "e5500_nop"
-	run_dump_test "e6500_nop"
-	run_dump_test "cell"
-	run_dump_test "power4_32"
-	run_dump_test "power6"
-	run_dump_test "power7"
-	run_dump_test "power8"
-	run_dump_test "power9"
-	run_dump_test "vsx"
-	run_dump_test "vsx2"
-	run_dump_test "vsx3"
-	run_dump_test "htm"
-	run_dump_test "titan"
-    }
-}
+setup_xfail "*-*-*"
+run_dump_test "spe_ambiguous"
+
+run_dump_test "altivec"
+run_dump_test "altivec2"
+run_dump_test "altivec3"
+run_dump_test "booke"
+run_dump_test "e500"
+run_list_test "e500-ill" "-me500"
+run_dump_test "ppc750ps"
+run_dump_test "e500mc"
+run_dump_test "e6500"
+run_dump_test "e500mc64_nop"
+run_dump_test "e5500_nop"
+run_dump_test "e6500_nop"
+run_dump_test "power4_32"
+run_dump_test "power6"
+run_dump_test "power7"
+run_dump_test "power8"
+run_dump_test "power9"
+run_dump_test "vsx"
+run_dump_test "vsx2"
+run_dump_test "vsx3"
+run_dump_test "htm"
+run_dump_test "titan"
diff --git a/opcodes/disassemble.c b/opcodes/disassemble.c
index 78f0995..9fbf603 100644
--- a/opcodes/disassemble.c
+++ b/opcodes/disassemble.c
@@ -375,6 +375,11 @@ disassembler (enum bfd_architecture a,
 #endif
 #ifdef ARCH_powerpc
     case bfd_arch_powerpc:
+#endif
+#ifdef ARCH_rs6000
+    case bfd_arch_rs6000:
+#endif
+#if defined ARCH_powerpc || defined ARCH_rs6000
       if (big)
 	disassemble = print_insn_big_powerpc;
       else
@@ -391,14 +396,6 @@ disassembler (enum bfd_architecture a,
       disassemble = print_insn_riscv;
       break;
 #endif
-#ifdef ARCH_rs6000
-    case bfd_arch_rs6000:
-      if (mach == bfd_mach_ppc_620)
-	disassemble = print_insn_big_powerpc;
-      else
-	disassemble = print_insn_rs6000;
-      break;
-#endif
 #ifdef ARCH_rl78
     case bfd_arch_rl78:
       disassemble = rl78_get_disassembler (abfd);
diff --git a/opcodes/disassemble.h b/opcodes/disassemble.h
index 6968700..ee7a9c8 100644
--- a/opcodes/disassemble.h
+++ b/opcodes/disassemble.h
@@ -82,7 +82,6 @@ extern int print_insn_or1k		(bfd_vma, disassemble_info *);
 extern int print_insn_pdp11		(bfd_vma, disassemble_info *);
 extern int print_insn_pj		(bfd_vma, disassemble_info *);
 extern int print_insn_pru		(bfd_vma, disassemble_info *);
-extern int print_insn_rs6000		(bfd_vma, disassemble_info *);
 extern int print_insn_s390		(bfd_vma, disassemble_info *);
 extern int print_insn_sh64		(bfd_vma, disassemble_info *);
 extern int print_insn_spu		(bfd_vma, disassemble_info *);
diff --git a/opcodes/ppc-dis.c b/opcodes/ppc-dis.c
index a2cfc0b..efa7898 100644
--- a/opcodes/ppc-dis.c
+++ b/opcodes/ppc-dis.c
@@ -340,7 +340,10 @@ powerpc_init_dialect (struct disassemble_info *info)
       dialect = ppc_parse_cpu (dialect, &sticky, "vle");
       break;
     default:
-      dialect = ppc_parse_cpu (dialect, &sticky, "power9") | PPC_OPCODE_ANY;
+      if (info->arch == bfd_arch_powerpc)
+	dialect = ppc_parse_cpu (dialect, &sticky, "power9") | PPC_OPCODE_ANY;
+      else
+	dialect = ppc_parse_cpu (dialect, &sticky, "pwr");
       break;
     }
 
@@ -431,8 +434,7 @@ disassemble_init_powerpc (struct disassemble_info *info)
       last = spe2_opcd_indices[i];
     }
 
-  if (info->arch == bfd_arch_powerpc)
-    powerpc_init_dialect (info);
+  powerpc_init_dialect (info);
 }
 
 /* Print a big endian PowerPC instruction.  */
@@ -451,14 +453,6 @@ print_insn_little_powerpc (bfd_vma memaddr, struct disassemble_info *info)
   return print_insn_powerpc (memaddr, info, 0, get_powerpc_dialect (info));
 }
 
-/* Print a POWER (RS/6000) instruction.  */
-
-int
-print_insn_rs6000 (bfd_vma memaddr, struct disassemble_info *info)
-{
-  return print_insn_powerpc (memaddr, info, 1, PPC_OPCODE_POWER);
-}
-
 /* Extract the operand value from the PowerPC or POWER instruction.  */
 
 static int64_t

-- 
Alan Modra
Australia Development Lab, IBM