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Ensure ARM VPUSH and VPOP instructions do not affect more than 16 registers.
[deliverable/binutils-gdb.git] / gas / config / tc-arm.c
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index e8619b67052dd3038bf29702d8b99e42e37f2cb9..a8d9556c05b4f24f28cc266a3d40c6ab70ddc6ab 100644 (file)
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -161,7 +161,9 @@ static const arm_feature_set fpu_arch_vfp_v3 ATTRIBUTE_UNUSED = FPU_ARCH_VFP_V3;
 static const arm_feature_set fpu_arch_neon_v1 ATTRIBUTE_UNUSED = FPU_ARCH_NEON_V1;
 static const arm_feature_set fpu_arch_fpa = FPU_ARCH_FPA;
 static const arm_feature_set fpu_any_hard = FPU_ANY_HARD;
+#ifdef OBJ_ELF
 static const arm_feature_set fpu_arch_maverick = FPU_ARCH_MAVERICK;
+#endif
 static const arm_feature_set fpu_endian_pure = FPU_ARCH_ENDIAN_PURE;
 
 #ifdef CPU_DEFAULT
@@ -198,7 +200,9 @@ static const arm_feature_set arm_ext_div = ARM_FEATURE_CORE_LOW (ARM_EXT_DIV);
 static const arm_feature_set arm_ext_v7 = ARM_FEATURE_CORE_LOW (ARM_EXT_V7);
 static const arm_feature_set arm_ext_v7a = ARM_FEATURE_CORE_LOW (ARM_EXT_V7A);
 static const arm_feature_set arm_ext_v7r = ARM_FEATURE_CORE_LOW (ARM_EXT_V7R);
+#ifdef OBJ_ELF
 static const arm_feature_set arm_ext_v7m = ARM_FEATURE_CORE_LOW (ARM_EXT_V7M);
+#endif
 static const arm_feature_set arm_ext_v8 = ARM_FEATURE_CORE_LOW (ARM_EXT_V8);
 static const arm_feature_set arm_ext_m =
   ARM_FEATURE_CORE (ARM_EXT_V6M | ARM_EXT_OS | ARM_EXT_V7M,
@@ -220,11 +224,13 @@ static const arm_feature_set arm_ext_v6t2_v8m =
 /* Instructions shared between ARMv8-A and ARMv8-M.  */
 static const arm_feature_set arm_ext_atomics =
   ARM_FEATURE_CORE_HIGH (ARM_EXT2_ATOMICS);
+#ifdef OBJ_ELF
 /* DSP instructions Tag_DSP_extension refers to.  */
 static const arm_feature_set arm_ext_dsp =
   ARM_FEATURE_CORE_LOW (ARM_EXT_V5E | ARM_EXT_V5ExP | ARM_EXT_V6_DSP);
-static const arm_feature_set arm_ext_v8_2 =
-  ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8_2A);
+#endif
+static const arm_feature_set arm_ext_ras =
+  ARM_FEATURE_CORE_HIGH (ARM_EXT2_RAS);
 /* FP16 instructions.  */
 static const arm_feature_set arm_ext_fp16 =
   ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST);
@@ -233,7 +239,9 @@ static const arm_feature_set arm_arch_any = ARM_ANY;
 static const arm_feature_set arm_arch_full ATTRIBUTE_UNUSED = ARM_FEATURE (-1, -1, -1);
 static const arm_feature_set arm_arch_t2 = ARM_ARCH_THUMB2;
 static const arm_feature_set arm_arch_none = ARM_ARCH_NONE;
+#ifdef OBJ_ELF
 static const arm_feature_set arm_arch_v6m_only = ARM_ARCH_V6M_ONLY;
+#endif
 
 static const arm_feature_set arm_cext_iwmmxt2 =
   ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT2);
@@ -263,10 +271,12 @@ static const arm_feature_set fpu_neon_ext_v1 =
   ARM_FEATURE_COPROC (FPU_NEON_EXT_V1);
 static const arm_feature_set fpu_vfp_v3_or_neon_ext =
   ARM_FEATURE_COPROC (FPU_NEON_EXT_V1 | FPU_VFP_EXT_V3);
+#ifdef OBJ_ELF
 static const arm_feature_set fpu_vfp_fp16 =
   ARM_FEATURE_COPROC (FPU_VFP_EXT_FP16);
 static const arm_feature_set fpu_neon_ext_fma =
   ARM_FEATURE_COPROC (FPU_NEON_EXT_FMA);
+#endif
 static const arm_feature_set fpu_vfp_ext_fma =
   ARM_FEATURE_COPROC (FPU_VFP_EXT_FMA);
 static const arm_feature_set fpu_vfp_ext_armv8 =
@@ -2267,9 +2277,7 @@ create_register_alias (char * newname, char *p)
   nlen = strlen (newname);
 #endif
 
-  nbuf = xmalloc (nlen + 1);
-  memcpy (nbuf, newname, nlen);
-  nbuf[nlen] = '\0';
+  nbuf = xmemdup0 (newname, nlen);
 
   /* Create aliases under the new name as stated; an all-lowercase
      version of the new name; and an all-uppercase version of the new
@@ -2432,9 +2440,7 @@ create_neon_reg_alias (char *newname, char *p)
   namelen = strlen (newname);
 #endif
 
-  namebuf = xmalloc (namelen + 1);
-  strncpy (namebuf, newname, namelen);
-  namebuf[namelen] = '\0';
+  namebuf = xmemdup0 (newname, namelen);
 
   insert_neon_reg_alias (namebuf, basereg->number, basetype,
                         typeinfo.defined != 0 ? &typeinfo : NULL);
@@ -3288,6 +3294,7 @@ add_to_lit_pool (unsigned int nbytes)
                }
 
              pool->literals[entry] = inst.reloc.exp;
+             pool->literals[entry].X_op = O_constant;
              pool->literals[entry].X_add_number = 0;
              pool->literals[entry++].X_md = (PADDING_SLOT << 8) | 4;
              pool->next_free_entry += 1;
@@ -8003,7 +8010,7 @@ move_or_literal_pool (int i, enum lit_type t, bfd_boolean mode_3)
                  return TRUE;
                }
            }
-         else if (t == CONST_VEC)
+         else if (t == CONST_VEC && ARM_CPU_HAS_FEATURE (cpu_variant, fpu_neon_ext_v1))
            {
              int op = 0;
              unsigned immbits = 0;
@@ -14383,6 +14390,11 @@ static void
 do_vfp_nsyn_push (void)
 {
   nsyn_insert_sp ();
+
+  constraint (inst.operands[1].imm < 1 || inst.operands[1].imm > 16,
+             _("register list must contain at least 1 and at most 16 "
+               "registers"));
+
   if (inst.operands[1].issingle)
     do_vfp_nsyn_opcode ("fstmdbs");
   else
@@ -14393,6 +14405,11 @@ static void
 do_vfp_nsyn_pop (void)
 {
   nsyn_insert_sp ();
+
+  constraint (inst.operands[1].imm < 1 || inst.operands[1].imm > 16,
+             _("register list must contain at least 1 and at most 16 "
+               "registers"));
+
   if (inst.operands[1].issingle)
     do_vfp_nsyn_opcode ("fldmias");
   else
@@ -19716,9 +19733,9 @@ static const struct asm_opcode insns[] =
 
  /* ARMv8.2 RAS extension.  */
 #undef  ARM_VARIANT
-#define ARM_VARIANT   & arm_ext_v8_2
+#define ARM_VARIANT   & arm_ext_ras
 #undef  THUMB_VARIANT
-#define THUMB_VARIANT & arm_ext_v8_2
+#define THUMB_VARIANT & arm_ext_ras
  TUE ("esb", 320f010, f3af8010, 0, (), noargs,  noargs),
 
 #undef  ARM_VARIANT
@@ -21900,10 +21917,7 @@ start_unwind_section (const segT text_seg, int idx)
   const char * prefix;
   const char * prefix_once;
   const char * group_name;
-  size_t prefix_len;
-  size_t text_len;
   char * sec_name;
-  size_t sec_name_len;
   int type;
   int flags;
   int linkonce;
@@ -21932,13 +21946,7 @@ start_unwind_section (const segT text_seg, int idx)
       text_name += strlen (".gnu.linkonce.t.");
     }
 
-  prefix_len = strlen (prefix);
-  text_len = strlen (text_name);
-  sec_name_len = prefix_len + text_len;
-  sec_name = (char *) xmalloc (sec_name_len + 1);
-  memcpy (sec_name, prefix, prefix_len);
-  memcpy (sec_name + prefix_len, text_name, text_len);
-  sec_name[prefix_len + text_len] = '\0';
+  sec_name = concat (prefix, text_name, (char *) NULL);
 
   flags = SHF_ALLOC;
   linkonce = 0;
@@ -24694,8 +24702,8 @@ arm_adjust_symtab (void)
              /* If it's a .thumb_func, declare it as so,
                 otherwise tag label as .code 16.  */
              if (THUMB_IS_FUNC (sym))
-               elf_sym->internal_elf_sym.st_target_internal
-                 = ST_BRANCH_TO_THUMB;
+               ARM_SET_SYM_BRANCH_TYPE (elf_sym->internal_elf_sym.st_target_internal,
+                                        ST_BRANCH_TO_THUMB);
              else if (EF_ARM_EABI_VERSION (meabi_flags) < EF_ARM_EABI_VER4)
                elf_sym->internal_elf_sym.st_info =
                  ELF_ST_INFO (bind, STT_ARM_16BIT);
@@ -25344,6 +25352,8 @@ static const struct arm_cpu_option_table arm_cpus[] =
                                                                  "Cortex-A57"),
   ARM_CPU_OPT ("cortex-a72",    ARM_ARCH_V8A,    FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
                                                                  "Cortex-A72"),
+  ARM_CPU_OPT ("cortex-a73",    ARM_ARCH_V8A,    FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+                                                                 "Cortex-A73"),
   ARM_CPU_OPT ("cortex-r4",    ARM_ARCH_V7R,    FPU_NONE,        "Cortex-R4"),
   ARM_CPU_OPT ("cortex-r4f",   ARM_ARCH_V7R,    FPU_ARCH_VFP_V3D16,
                                                                  "Cortex-R4F"),
@@ -25518,6 +25528,9 @@ static const struct arm_option_extension_value_table arm_extensions[] =
   ARM_EXT_OPT ("pan",  ARM_FEATURE_CORE_HIGH (ARM_EXT2_PAN),
                        ARM_FEATURE (ARM_EXT_V8, ARM_EXT2_PAN, 0),
                        ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
+  ARM_EXT_OPT ("ras",  ARM_FEATURE_CORE_HIGH (ARM_EXT2_RAS),
+                       ARM_FEATURE (ARM_EXT_V8, ARM_EXT2_RAS, 0),
+                       ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
   ARM_EXT_OPT ("rdma",  FPU_ARCH_NEON_VFP_ARMV8_1,
                        ARM_FEATURE_COPROC (FPU_NEON_ARMV8 | FPU_NEON_EXT_RDMA),
                        ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
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