* gas/config/tc-arm.c (arm_ext_mp): Add.

	(do_pld): Update comment.
	(insns): Add support for pldw.
	(arm_cpus): Update cortex-a5, cortex-a9, and cortex-a15 to support
	MP extension.
	(arm_extensions): Add 'mp' extension.
	(aeabi_set_public_attributes): Emit correct build attribute when
	MP extension is enabled.
	* gas/doc/c-arm.texi: Update for MP extensions.
	* gas/testsuite/gas/arm/arch7a-mp.d: Add.
	* gas/testsuite/gas/arm/arch7ar-mp.s: Likewise.
	* gas/testsuite/gas/arm/arch7r-mp.d: Likewise.
	* gas/testsuite/gas/arm/armv2-mp-bad.d: Likewise.
	* gas/testsuite/gas/arm/armv2-mp-bad.l: Likewise.
	* gas/testsuite/gas/arm/attr-march-all.d: Update for MP extension.
	* gas/testsuite/gas/arm/attr-march-armv7-a+mp.d: Add.
	* gas/testsuite/gas/arm/attr-march-armv7-r+mp.d: Likewise.
	* include/opcode/arm.h (ARM_EXT_MP): Add.
	(ARM_ARCH_V7A_MP): Likewise.
	* opcodes/arm-dis.c (arm_opcodes): Add support for pldw.
	(thumb32_opcodes): Likewise.

12 files changed, 179 insertions, 5 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 70015a0..de45989 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,5 +1,17 @@
 2010-09-23  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
 
+	* config/tc-arm.c (arm_ext_mp): Add.
+	(do_pld): Update comment.
+	(insns): Add support for pldw.
+	(arm_cpus): Update cortex-a5, cortex-a9, and cortex-a15 to support
+	MP extension.
+	(arm_extensions): Add 'mp' extension.
+	(aeabi_set_public_attributes): Emit correct build attribute when
+	MP extension is enabled.
+	* doc/c-arm.texi: Update for MP extensions.
+
+2010-09-23  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
+
 	* config/tc-arm.c (md_pseduo_table): Add .arch_extension directive.
 	(arm_option_extension_value_table): Add.
 	(arm_extensions): Change type.
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index fde0bc4..6101c41 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -197,6 +197,7 @@ static const arm_feature_set arm_ext_v7r = ARM_FEATURE (ARM_EXT_V7R, 0);
 static const arm_feature_set arm_ext_v7m = ARM_FEATURE (ARM_EXT_V7M, 0);
 static const arm_feature_set arm_ext_m =
   ARM_FEATURE (ARM_EXT_V6M | ARM_EXT_V7M, 0);
+static const arm_feature_set arm_ext_mp = ARM_FEATURE (ARM_EXT_MP, 0);
 
 static const arm_feature_set arm_arch_any = ARM_ANY;
 static const arm_feature_set arm_arch_full = ARM_FEATURE (-1, -1);
@@ -7955,8 +7956,9 @@ do_pkhtb (void)
 }
 
 /* ARMv5TE: Preload-Cache
+   MP Extensions: Preload for write
 
-    PLD <addr_mode>
+    PLD(W) <addr_mode>
 
   Syntactically, like LDR with B=1, W=0, L=1.  */
 
@@ -17137,6 +17139,13 @@ static const struct asm_opcode insns[] =
  TUF("pli",	450f000, f910f000, 1, (ADDR),	  pli,	    t_pld),
  TCE("dbg",	320f0f0, f3af80f0, 1, (I15),	  dbg,	    t_dbg),
 
+#undef ARM_VARIANT
+#define ARM_VARIANT    & arm_ext_mp
+#undef THUMB_VARIANT
+#define THUMB_VARIANT  & arm_ext_mp
+
+ TUF("pldw",	410f000, f830f000, 1, (ADDR),	pld,	t_pld),
+
 #undef  ARM_VARIANT
 #define ARM_VARIANT  & fpu_fpa_ext_v1  /* Core FPA instruction set (V1).  */
 
@@ -22372,14 +22381,14 @@ static const struct arm_cpu_option_table arm_cpus[] =
   {"arm1156t2f-s",	ARM_ARCH_V6T2,	 FPU_ARCH_VFP_V2, NULL},
   {"arm1176jz-s",	ARM_ARCH_V6ZK,	 FPU_NONE,	  NULL},
   {"arm1176jzf-s",	ARM_ARCH_V6ZK,	 FPU_ARCH_VFP_V2, NULL},
-  {"cortex-a5",		ARM_ARCH_V7A,	 FPU_NONE,	  "Cortex-A5"},
+  {"cortex-a5",		ARM_ARCH_V7A_MP, FPU_NONE,	  "Cortex-A5"},
   {"cortex-a8",		ARM_ARCH_V7A,	 ARM_FEATURE (0, FPU_VFP_V3
                                                         | FPU_NEON_EXT_V1),
                                                           "Cortex-A8"},
-  {"cortex-a9",		ARM_ARCH_V7A,	 ARM_FEATURE (0, FPU_VFP_V3
+  {"cortex-a9",		ARM_ARCH_V7A_MP, ARM_FEATURE (0, FPU_VFP_V3
                                                         | FPU_NEON_EXT_V1),
                                                           "Cortex-A9"},
-  {"cortex-a15",	ARM_ARCH_V7A,	 FPU_ARCH_NEON_VFP_V4,
+  {"cortex-a15",	ARM_ARCH_V7A_MP, FPU_ARCH_NEON_VFP_V4,
                                                           "Cortex-A15"},
   {"cortex-r4",		ARM_ARCH_V7R,	 FPU_NONE,	  "Cortex-R4"},
   {"cortex-r4f",	ARM_ARCH_V7R,	 FPU_ARCH_VFP_V3D16,
@@ -22468,8 +22477,10 @@ static const struct arm_option_extension_value_table arm_extensions[] =
   {"iwmmxt",	ARM_FEATURE (0, ARM_CEXT_IWMMXT),	ARM_ANY},
   {"iwmmxt2",	ARM_FEATURE (0, ARM_CEXT_IWMMXT2),	ARM_ANY},
   {"maverick",	ARM_FEATURE (0, ARM_CEXT_MAVERICK),	ARM_ANY},
+  {"mp",	ARM_FEATURE (ARM_EXT_MP, 0),
+		     ARM_FEATURE (ARM_EXT_V7A | ARM_EXT_V7R, 0)},
   {"xscale",	ARM_FEATURE (0, ARM_CEXT_XSCALE),	ARM_ANY},
-  {NULL,	ARM_ARCH_NONE,				ARM_ARCH_NONE}
+  {NULL,	ARM_ARCH_NONE,			  ARM_ARCH_NONE}
 };
 
 /* ISA floating-point and Advanced SIMD extensions.  */
@@ -23146,6 +23157,10 @@ aeabi_set_public_attributes (void)
       aeabi_set_attribute_int (Tag_DIV_use, 2);  */
   else
     aeabi_set_attribute_int (Tag_DIV_use, 1);
+
+  /* Tag_MP_extension_use.  */
+  if (ARM_CPU_HAS_FEATURE (flags, arm_ext_mp))
+    aeabi_set_attribute_int (Tag_MPextension_use, 1);
 }
 
 /* Add the default contents for the .ARM.attributes section.  */
diff --git a/gas/doc/c-arm.texi b/gas/doc/c-arm.texi
index 479d6fa..693d6ba 100644
--- a/gas/doc/c-arm.texi
+++ b/gas/doc/c-arm.texi
@@ -138,6 +138,9 @@ is equivalent to specifying @code{-mcpu=ep9312}.
 Multiple extensions may be specified, separated by a @code{+}.  The 
 extensions should be specified in ascending alphabetical order.
 
+Some extensions may be restricted to particular architectures; this is 
+documented in the list of extensions below.
+
 Extension mnemonics may also be removed from those the assembler accepts.  
 This is done be prepending @code{no} to the option that adds the extension.  
 Extensions that are removed should be listed after all extensions which have 
@@ -149,6 +152,7 @@ The following extensions are currently supported:
 @code{iwmmxt},
 @code{iwmmxt2},
 @code{maverick},
+@code{mp} (Multiprocessing Extensions for v7-A and v7-R architectures),
 and
 @code{xscale}.
 
diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 8ee3ca7..bc2eb52 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,3 +1,14 @@
+2010-09-23  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
+
+	* gas/arm/arch7a-mp.d: Add.
+	* gas/arm/arch7ar-mp.s: Likewise.
+	* gas/arm/arch7r-mp.d: Likewise.
+	* gas/arm/armv2-mp-bad.d: Likewise.
+	* gas/arm/armv2-mp-bad.l: Likewise.
+	* gas/arm/attr-march-all.d: Update for MP extension.
+	* gas/arm/attr-march-armv7-a+mp.d: Add.
+	* gas/arm/attr-march-armv7-r+mp.d: Likewise.
+
 2010-09-23  Alan Modra  <amodra@gmail.com>
 
 	* gas/all/gas.exp: Update "forward" and "redef3" xfails.
diff --git a/gas/testsuite/gas/arm/arch7a-mp.d b/gas/testsuite/gas/arm/arch7a-mp.d
new file mode 100644
index 0000000..9513f89
--- /dev/null
+++ b/gas/testsuite/gas/arm/arch7a-mp.d
@@ -0,0 +1,30 @@
+#name: ARM V7-A+MP instructions
+#as: -march=armv7-a+mp
+#objdump: -dr --prefix-addresses --show-raw-insn
+#source: arch7ar-mp.s
+
+.*: +file format .*arm.*
+
+Disassembly of section .text:
+0[0-9a-f]+ <[^>]+> f590f000 	pldw	\[r0\]
+0[0-9a-f]+ <[^>]+> f59ef000 	pldw	\[lr\]
+0[0-9a-f]+ <[^>]+> f591f000 	pldw	\[r1\]
+0[0-9a-f]+ <[^>]+> f590ffff 	pldw	\[r0, #4095\]	; 0xfff
+0[0-9a-f]+ <[^>]+> f510ffff 	pldw	\[r0, #-4095\]	; 0xfff
+0[0-9a-f]+ <[^>]+> f790f000 	pldw	\[r0, r0\]
+0[0-9a-f]+ <[^>]+> f791f000 	pldw	\[r1, r0\]
+0[0-9a-f]+ <[^>]+> f79ef000 	pldw	\[lr, r0\]
+0[0-9a-f]+ <[^>]+> f790f001 	pldw	\[r0, r1\]
+0[0-9a-f]+ <[^>]+> f790f00e 	pldw	\[r0, lr\]
+0[0-9a-f]+ <[^>]+> f790f100 	pldw	\[r0, r0, lsl #2\]
+0[0-9a-f]+ <[^>]+> f8b0 f000 	pldw	\[r0\]
+0[0-9a-f]+ <[^>]+> f8be f000 	pldw	\[lr\]
+0[0-9a-f]+ <[^>]+> f8b1 f000 	pldw	\[r1\]
+0[0-9a-f]+ <[^>]+> f8b0 ffff 	pldw	\[r0, #4095\]	; 0xfff
+0[0-9a-f]+ <[^>]+> f830 fcff 	pldw	\[r0, #-255\]
+0[0-9a-f]+ <[^>]+> f830 f000 	pldw	\[r0, r0\]
+0[0-9a-f]+ <[^>]+> f831 f000 	pldw	\[r1, r0\]
+0[0-9a-f]+ <[^>]+> f83e f000 	pldw	\[lr, r0\]
+0[0-9a-f]+ <[^>]+> f830 f001 	pldw	\[r0, r1\]
+0[0-9a-f]+ <[^>]+> f830 f00e 	pldw	\[r0, lr\]
+0[0-9a-f]+ <[^>]+> f830 f030 	pldw	\[r0, r0, lsl #3\]
diff --git a/gas/testsuite/gas/arm/arch7ar-mp.s b/gas/testsuite/gas/arm/arch7ar-mp.s
new file mode 100644
index 0000000..34f7278
--- /dev/null
+++ b/gas/testsuite/gas/arm/arch7ar-mp.s
@@ -0,0 +1,33 @@
+	@ Test MP Extension instructions
+	.text
+
+label1:
+	pldw [r0, #0]
+	pldw [r14, #0]
+	pldw [r1, #0]
+	pldw [r0, #4095]
+	pldw [r0, #-4095]
+
+	pldw [r0, r0]
+	pldw [r1, r0]
+	pldw [r14, r0]
+	pldw [r0, r1]
+	pldw [r0, r14]
+	pldw [r0, r0, lsl #2]
+
+	.thumb
+	.thumb_func
+label2:
+	pldw [r0, #0]
+	pldw [r14, #0]
+	pldw [r1, #0]
+	pldw [r0, #4095]
+	pldw [r0, #-255]
+
+	pldw [r0, r0]
+	pldw [r1, r0]
+	pldw [r14, r0]
+	pldw [r0, r1]
+	pldw [r0, r14]
+	pldw [r0, r0, lsl #3]
+
diff --git a/gas/testsuite/gas/arm/arch7r-mp.d b/gas/testsuite/gas/arm/arch7r-mp.d
new file mode 100644
index 0000000..8908c98
--- /dev/null
+++ b/gas/testsuite/gas/arm/arch7r-mp.d
@@ -0,0 +1,30 @@
+#name: ARM V7-R+MP instructions
+#as: -march=armv7-r+mp
+#objdump: -dr --prefix-addresses --show-raw-insn
+#source: arch7ar-mp.s
+
+.*: +file format .*arm.*
+
+Disassembly of section .text:
+0[0-9a-f]+ <[^>]+> f590f000 	pldw	\[r0\]
+0[0-9a-f]+ <[^>]+> f59ef000 	pldw	\[lr\]
+0[0-9a-f]+ <[^>]+> f591f000 	pldw	\[r1\]
+0[0-9a-f]+ <[^>]+> f590ffff 	pldw	\[r0, #4095\]	; 0xfff
+0[0-9a-f]+ <[^>]+> f510ffff 	pldw	\[r0, #-4095\]	; 0xfff
+0[0-9a-f]+ <[^>]+> f790f000 	pldw	\[r0, r0\]
+0[0-9a-f]+ <[^>]+> f791f000 	pldw	\[r1, r0\]
+0[0-9a-f]+ <[^>]+> f79ef000 	pldw	\[lr, r0\]
+0[0-9a-f]+ <[^>]+> f790f001 	pldw	\[r0, r1\]
+0[0-9a-f]+ <[^>]+> f790f00e 	pldw	\[r0, lr\]
+0[0-9a-f]+ <[^>]+> f790f100 	pldw	\[r0, r0, lsl #2\]
+0[0-9a-f]+ <[^>]+> f8b0 f000 	pldw	\[r0\]
+0[0-9a-f]+ <[^>]+> f8be f000 	pldw	\[lr\]
+0[0-9a-f]+ <[^>]+> f8b1 f000 	pldw	\[r1\]
+0[0-9a-f]+ <[^>]+> f8b0 ffff 	pldw	\[r0, #4095\]	; 0xfff
+0[0-9a-f]+ <[^>]+> f830 fcff 	pldw	\[r0, #-255\]
+0[0-9a-f]+ <[^>]+> f830 f000 	pldw	\[r0, r0\]
+0[0-9a-f]+ <[^>]+> f831 f000 	pldw	\[r1, r0\]
+0[0-9a-f]+ <[^>]+> f83e f000 	pldw	\[lr, r0\]
+0[0-9a-f]+ <[^>]+> f830 f001 	pldw	\[r0, r1\]
+0[0-9a-f]+ <[^>]+> f830 f00e 	pldw	\[r0, lr\]
+0[0-9a-f]+ <[^>]+> f830 f030 	pldw	\[r0, r0, lsl #3\]
diff --git a/gas/testsuite/gas/arm/armv2-mp-bad.d b/gas/testsuite/gas/arm/armv2-mp-bad.d
new file mode 100644
index 0000000..c43ba96
--- /dev/null
+++ b/gas/testsuite/gas/arm/armv2-mp-bad.d
@@ -0,0 +1,4 @@
+#name: ARM MP Extension errors
+#source: blank.s
+#as: -march=armv2+mp
+#error-output: armv2-mp-bad.l
diff --git a/gas/testsuite/gas/arm/armv2-mp-bad.l b/gas/testsuite/gas/arm/armv2-mp-bad.l
new file mode 100644
index 0000000..eb97135
--- /dev/null
+++ b/gas/testsuite/gas/arm/armv2-mp-bad.l
@@ -0,0 +1,3 @@
+Assembler messages:
+[^:]*: extension does not apply to the base architecture
+[^:]*: unrecognized option -march=armv2\+mp
diff --git a/gas/testsuite/gas/arm/attr-march-all.d b/gas/testsuite/gas/arm/attr-march-all.d
index ba446c3..0b888a2 100644
--- a/gas/testsuite/gas/arm/attr-march-all.d
+++ b/gas/testsuite/gas/arm/attr-march-all.d
@@ -12,3 +12,4 @@ File Attributes
   Tag_CPU_arch_profile: Application
   Tag_ARM_ISA_use: Yes
   Tag_THUMB_ISA_use: Thumb-2
+  Tag_MPextension_use: Allowed
diff --git a/gas/testsuite/gas/arm/attr-march-armv7-a+mp.d b/gas/testsuite/gas/arm/attr-march-armv7-a+mp.d
new file mode 100644
index 0000000..663a889
--- /dev/null
+++ b/gas/testsuite/gas/arm/attr-march-armv7-a+mp.d
@@ -0,0 +1,16 @@
+# name: attributes for -march=armv7-a+mp
+# source: blank.s
+# as: -march=armv7-a+mp
+# readelf: -A
+# This test is only valid on EABI based ports.
+# target: *-*-*eabi
+
+Attribute Section: aeabi
+File Attributes
+  Tag_CPU_name: "7-A"
+  Tag_CPU_arch: v7
+  Tag_CPU_arch_profile: Application
+  Tag_ARM_ISA_use: Yes
+  Tag_THUMB_ISA_use: Thumb-2
+  Tag_MPextension_use: Allowed
+  Tag_DIV_use: Not allowed
diff --git a/gas/testsuite/gas/arm/attr-march-armv7-r+mp.d b/gas/testsuite/gas/arm/attr-march-armv7-r+mp.d
new file mode 100644
index 0000000..a7fa3c6
--- /dev/null
+++ b/gas/testsuite/gas/arm/attr-march-armv7-r+mp.d
@@ -0,0 +1,15 @@
+# name: attributes for -march=armv7-r+mp
+# source: blank.s
+# as: -march=armv7-r+mp
+# readelf: -A
+# This test is only valid on EABI based ports.
+# target: *-*-*eabi
+
+Attribute Section: aeabi
+File Attributes
+  Tag_CPU_name: "7-R"
+  Tag_CPU_arch: v7
+  Tag_CPU_arch_profile: Realtime
+  Tag_ARM_ISA_use: Yes
+  Tag_THUMB_ISA_use: Thumb-2
+  Tag_MPextension_use: Allowed