This patch enables disassembler_needs_relocs for PRU. It is needed to print correct symbols when disassembling arguments of "call" instructions with a relocation.

opcodes	* disassemble.c: Enable disassembler_needs_relocs for PRU.

gas	* testsuite/gas/pru/extern.s: New test for print of U16_PMEMM
	relocation.
	* testsuite/gas/pru/extern.d: New test driver.

gas/ChangeLog

@@ -1,3 +1,9 @@
+2017-12-13  Dimitar Dimitrov  <dimitar@dinux.eu>
+
+	* testsuite/gas/pru/extern.s: New test for print of U16_PMEMM
+	relocation.
+	* testsuite/gas/pru/extern.d: New test driver.
+
 2017-12-12  Alan Modra  <amodra@gmail.com>
 
 	PR 21118

gas/testsuite/gas/pru/extern.d

@@ -0,0 +1,10 @@
+#objdump: -dr --prefix-addresses --show-raw-insn
+#name: PRU extern function call dump
+
+# Test dumping of U16_PMEMIMM relocation
+
+.*: +file format elf32-pru
+
+Disassembly of section .text:
+0+0000 <[^>]*> 230000c3 	call	00000000 <myextfunc>
+[\t ]*0: R_PRU_U16_PMEMIMM[\t ]*myextfunc

gas/testsuite/gas/pru/extern.s

@@ -0,0 +1,5 @@
+# Source file used to test text dump of U16_PMEMIMM relocation
+
+	.extern myextfunc
+foo:
+	call	myextfunc

opcodes/ChangeLog

@@ -1,3 +1,7 @@
+2017-12-13  Dimitar Dimitrov  <dimitar@dinux.eu>
+
+	* disassemble.c: Enable disassembler_needs_relocs for PRU.
+
 2017-12-11  Petr Pavlu  <petr.pavlu@arm.com>
 	    Renlin Li  <renlin.li@arm.com>
 

opcodes/disassemble.c

@@ -654,6 +654,11 @@ disassemble_init_for_target (struct disassemble_info * info)
 #ifdef ARCH_powerpc
     case bfd_arch_powerpc:
 #endif
+#ifdef ARCH_pru
+    case bfd_arch_pru:
+      info->disassembler_needs_relocs = TRUE;
+      break;
+#endif
 #ifdef ARCH_rs6000
     case bfd_arch_rs6000:
 #endif