/* tc-arm.c -- Assemble for the ARM
- Copyright (C) 1994-2014 Free Software Foundation, Inc.
+ Copyright (C) 1994-2016 Free Software Foundation, Inc.
Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
Modified by David Taylor (dtaylor@armltd.co.uk)
Cirrus coprocessor mods by Aldy Hernandez (aldyh@redhat.com)
/* Constants for known architecture features. */
static const arm_feature_set fpu_default = FPU_DEFAULT;
-static const arm_feature_set fpu_arch_vfp_v1 = FPU_ARCH_VFP_V1;
+static const arm_feature_set fpu_arch_vfp_v1 ATTRIBUTE_UNUSED = FPU_ARCH_VFP_V1;
static const arm_feature_set fpu_arch_vfp_v2 = FPU_ARCH_VFP_V2;
-static const arm_feature_set fpu_arch_vfp_v3 = FPU_ARCH_VFP_V3;
-static const arm_feature_set fpu_arch_neon_v1 = FPU_ARCH_NEON_V1;
+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;
static const arm_feature_set fpu_arch_maverick = FPU_ARCH_MAVERICK;
static const arm_feature_set cpu_default = CPU_DEFAULT;
#endif
-static const arm_feature_set arm_ext_v1 = ARM_FEATURE (ARM_EXT_V1, 0);
-static const arm_feature_set arm_ext_v2 = ARM_FEATURE (ARM_EXT_V1, 0);
-static const arm_feature_set arm_ext_v2s = ARM_FEATURE (ARM_EXT_V2S, 0);
-static const arm_feature_set arm_ext_v3 = ARM_FEATURE (ARM_EXT_V3, 0);
-static const arm_feature_set arm_ext_v3m = ARM_FEATURE (ARM_EXT_V3M, 0);
-static const arm_feature_set arm_ext_v4 = ARM_FEATURE (ARM_EXT_V4, 0);
-static const arm_feature_set arm_ext_v4t = ARM_FEATURE (ARM_EXT_V4T, 0);
-static const arm_feature_set arm_ext_v5 = ARM_FEATURE (ARM_EXT_V5, 0);
+static const arm_feature_set arm_ext_v1 = ARM_FEATURE_CORE_LOW (ARM_EXT_V1);
+static const arm_feature_set arm_ext_v2 = ARM_FEATURE_CORE_LOW (ARM_EXT_V1);
+static const arm_feature_set arm_ext_v2s = ARM_FEATURE_CORE_LOW (ARM_EXT_V2S);
+static const arm_feature_set arm_ext_v3 = ARM_FEATURE_CORE_LOW (ARM_EXT_V3);
+static const arm_feature_set arm_ext_v3m = ARM_FEATURE_CORE_LOW (ARM_EXT_V3M);
+static const arm_feature_set arm_ext_v4 = ARM_FEATURE_CORE_LOW (ARM_EXT_V4);
+static const arm_feature_set arm_ext_v4t = ARM_FEATURE_CORE_LOW (ARM_EXT_V4T);
+static const arm_feature_set arm_ext_v5 = ARM_FEATURE_CORE_LOW (ARM_EXT_V5);
static const arm_feature_set arm_ext_v4t_5 =
- ARM_FEATURE (ARM_EXT_V4T | ARM_EXT_V5, 0);
-static const arm_feature_set arm_ext_v5t = ARM_FEATURE (ARM_EXT_V5T, 0);
-static const arm_feature_set arm_ext_v5e = ARM_FEATURE (ARM_EXT_V5E, 0);
-static const arm_feature_set arm_ext_v5exp = ARM_FEATURE (ARM_EXT_V5ExP, 0);
-static const arm_feature_set arm_ext_v5j = ARM_FEATURE (ARM_EXT_V5J, 0);
-static const arm_feature_set arm_ext_v6 = ARM_FEATURE (ARM_EXT_V6, 0);
-static const arm_feature_set arm_ext_v6k = ARM_FEATURE (ARM_EXT_V6K, 0);
-static const arm_feature_set arm_ext_v6t2 = ARM_FEATURE (ARM_EXT_V6T2, 0);
-static const arm_feature_set arm_ext_v6m = ARM_FEATURE (ARM_EXT_V6M, 0);
-static const arm_feature_set arm_ext_v6_notm = ARM_FEATURE (ARM_EXT_V6_NOTM, 0);
-static const arm_feature_set arm_ext_v6_dsp = ARM_FEATURE (ARM_EXT_V6_DSP, 0);
-static const arm_feature_set arm_ext_barrier = ARM_FEATURE (ARM_EXT_BARRIER, 0);
-static const arm_feature_set arm_ext_msr = ARM_FEATURE (ARM_EXT_THUMB_MSR, 0);
-static const arm_feature_set arm_ext_div = ARM_FEATURE (ARM_EXT_DIV, 0);
-static const arm_feature_set arm_ext_v7 = ARM_FEATURE (ARM_EXT_V7, 0);
-static const arm_feature_set arm_ext_v7a = ARM_FEATURE (ARM_EXT_V7A, 0);
-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_v8 = ARM_FEATURE (ARM_EXT_V8, 0);
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V4T | ARM_EXT_V5);
+static const arm_feature_set arm_ext_v5t = ARM_FEATURE_CORE_LOW (ARM_EXT_V5T);
+static const arm_feature_set arm_ext_v5e = ARM_FEATURE_CORE_LOW (ARM_EXT_V5E);
+static const arm_feature_set arm_ext_v5exp = ARM_FEATURE_CORE_LOW (ARM_EXT_V5ExP);
+static const arm_feature_set arm_ext_v5j = ARM_FEATURE_CORE_LOW (ARM_EXT_V5J);
+static const arm_feature_set arm_ext_v6 = ARM_FEATURE_CORE_LOW (ARM_EXT_V6);
+static const arm_feature_set arm_ext_v6k = ARM_FEATURE_CORE_LOW (ARM_EXT_V6K);
+static const arm_feature_set arm_ext_v6t2 = ARM_FEATURE_CORE_LOW (ARM_EXT_V6T2);
+static const arm_feature_set arm_ext_v6m = ARM_FEATURE_CORE_LOW (ARM_EXT_V6M);
+static const arm_feature_set arm_ext_v6_notm =
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V6_NOTM);
+static const arm_feature_set arm_ext_v6_dsp =
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V6_DSP);
+static const arm_feature_set arm_ext_barrier =
+ ARM_FEATURE_CORE_LOW (ARM_EXT_BARRIER);
+static const arm_feature_set arm_ext_msr =
+ ARM_FEATURE_CORE_LOW (ARM_EXT_THUMB_MSR);
+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);
+static const arm_feature_set arm_ext_v7m = ARM_FEATURE_CORE_LOW (ARM_EXT_V7M);
+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 (ARM_EXT_V6M | ARM_EXT_OS | ARM_EXT_V7M, 0);
-static const arm_feature_set arm_ext_mp = ARM_FEATURE (ARM_EXT_MP, 0);
-static const arm_feature_set arm_ext_sec = ARM_FEATURE (ARM_EXT_SEC, 0);
-static const arm_feature_set arm_ext_os = ARM_FEATURE (ARM_EXT_OS, 0);
-static const arm_feature_set arm_ext_adiv = ARM_FEATURE (ARM_EXT_ADIV, 0);
-static const arm_feature_set arm_ext_virt = ARM_FEATURE (ARM_EXT_VIRT, 0);
+ ARM_FEATURE_CORE (ARM_EXT_V6M | ARM_EXT_OS | ARM_EXT_V7M, ARM_EXT2_V8M);
+static const arm_feature_set arm_ext_mp = ARM_FEATURE_CORE_LOW (ARM_EXT_MP);
+static const arm_feature_set arm_ext_sec = ARM_FEATURE_CORE_LOW (ARM_EXT_SEC);
+static const arm_feature_set arm_ext_os = ARM_FEATURE_CORE_LOW (ARM_EXT_OS);
+static const arm_feature_set arm_ext_adiv = ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV);
+static const arm_feature_set arm_ext_virt = ARM_FEATURE_CORE_LOW (ARM_EXT_VIRT);
+static const arm_feature_set arm_ext_pan = ARM_FEATURE_CORE_HIGH (ARM_EXT2_PAN);
+static const arm_feature_set arm_ext_v8m = ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8M);
+static const arm_feature_set arm_ext_v6t2_v8m =
+ ARM_FEATURE_CORE_HIGH (ARM_EXT2_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);
+static const arm_feature_set arm_ext_v8_2 =
+ ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8_2A);
+/* FP16 instructions. */
+static const arm_feature_set arm_ext_fp16 =
+ ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST);
static const arm_feature_set arm_arch_any = ARM_ANY;
-static const arm_feature_set arm_arch_full = ARM_FEATURE (-1, -1);
+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;
static const arm_feature_set arm_arch_v6m_only = ARM_ARCH_V6M_ONLY;
static const arm_feature_set arm_cext_iwmmxt2 =
- ARM_FEATURE (0, ARM_CEXT_IWMMXT2);
+ ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT2);
static const arm_feature_set arm_cext_iwmmxt =
- ARM_FEATURE (0, ARM_CEXT_IWMMXT);
+ ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT);
static const arm_feature_set arm_cext_xscale =
- ARM_FEATURE (0, ARM_CEXT_XSCALE);
+ ARM_FEATURE_COPROC (ARM_CEXT_XSCALE);
static const arm_feature_set arm_cext_maverick =
- ARM_FEATURE (0, ARM_CEXT_MAVERICK);
-static const arm_feature_set fpu_fpa_ext_v1 = ARM_FEATURE (0, FPU_FPA_EXT_V1);
-static const arm_feature_set fpu_fpa_ext_v2 = ARM_FEATURE (0, FPU_FPA_EXT_V2);
+ ARM_FEATURE_COPROC (ARM_CEXT_MAVERICK);
+static const arm_feature_set fpu_fpa_ext_v1 =
+ ARM_FEATURE_COPROC (FPU_FPA_EXT_V1);
+static const arm_feature_set fpu_fpa_ext_v2 =
+ ARM_FEATURE_COPROC (FPU_FPA_EXT_V2);
static const arm_feature_set fpu_vfp_ext_v1xd =
- ARM_FEATURE (0, FPU_VFP_EXT_V1xD);
-static const arm_feature_set fpu_vfp_ext_v1 = ARM_FEATURE (0, FPU_VFP_EXT_V1);
-static const arm_feature_set fpu_vfp_ext_v2 = ARM_FEATURE (0, FPU_VFP_EXT_V2);
-static const arm_feature_set fpu_vfp_ext_v3xd = ARM_FEATURE (0, FPU_VFP_EXT_V3xD);
-static const arm_feature_set fpu_vfp_ext_v3 = ARM_FEATURE (0, FPU_VFP_EXT_V3);
+ ARM_FEATURE_COPROC (FPU_VFP_EXT_V1xD);
+static const arm_feature_set fpu_vfp_ext_v1 =
+ ARM_FEATURE_COPROC (FPU_VFP_EXT_V1);
+static const arm_feature_set fpu_vfp_ext_v2 =
+ ARM_FEATURE_COPROC (FPU_VFP_EXT_V2);
+static const arm_feature_set fpu_vfp_ext_v3xd =
+ ARM_FEATURE_COPROC (FPU_VFP_EXT_V3xD);
+static const arm_feature_set fpu_vfp_ext_v3 =
+ ARM_FEATURE_COPROC (FPU_VFP_EXT_V3);
static const arm_feature_set fpu_vfp_ext_d32 =
- ARM_FEATURE (0, FPU_VFP_EXT_D32);
-static const arm_feature_set fpu_neon_ext_v1 = ARM_FEATURE (0, FPU_NEON_EXT_V1);
+ ARM_FEATURE_COPROC (FPU_VFP_EXT_D32);
+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 (0, FPU_NEON_EXT_V1 | FPU_VFP_EXT_V3);
-static const arm_feature_set fpu_vfp_fp16 = ARM_FEATURE (0, FPU_VFP_EXT_FP16);
-static const arm_feature_set fpu_neon_ext_fma = ARM_FEATURE (0, FPU_NEON_EXT_FMA);
-static const arm_feature_set fpu_vfp_ext_fma = ARM_FEATURE (0, FPU_VFP_EXT_FMA);
+ ARM_FEATURE_COPROC (FPU_NEON_EXT_V1 | FPU_VFP_EXT_V3);
+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);
+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 =
- ARM_FEATURE (0, FPU_VFP_EXT_ARMV8);
+ ARM_FEATURE_COPROC (FPU_VFP_EXT_ARMV8);
static const arm_feature_set fpu_vfp_ext_armv8xd =
- ARM_FEATURE (0, FPU_VFP_EXT_ARMV8xD);
+ ARM_FEATURE_COPROC (FPU_VFP_EXT_ARMV8xD);
static const arm_feature_set fpu_neon_ext_armv8 =
- ARM_FEATURE (0, FPU_NEON_EXT_ARMV8);
+ ARM_FEATURE_COPROC (FPU_NEON_EXT_ARMV8);
static const arm_feature_set fpu_crypto_ext_armv8 =
- ARM_FEATURE (0, FPU_CRYPTO_EXT_ARMV8);
+ ARM_FEATURE_COPROC (FPU_CRYPTO_EXT_ARMV8);
static const arm_feature_set crc_ext_armv8 =
- ARM_FEATURE (0, CRC_EXT_ARMV8);
+ ARM_FEATURE_COPROC (CRC_EXT_ARMV8);
+static const arm_feature_set fpu_neon_ext_v8_1 =
+ ARM_FEATURE_COPROC (FPU_NEON_EXT_RDMA);
static int mfloat_abi_opt = -1;
/* Record user cpu selection for object attributes. */
static arm_feature_set selected_cpu = ARM_ARCH_NONE;
/* Must be long enough to hold any of the names in arm_cpus. */
-static char selected_cpu_name[16];
+static char selected_cpu_name[20];
extern FLONUM_TYPE generic_floating_point_number;
static bfd_boolean
no_cpu_selected (void)
{
- return selected_cpu.core == arm_arch_none.core
- && selected_cpu.coproc == arm_arch_none.coproc;
+ return ARM_FEATURE_EQUAL (selected_cpu, arm_arch_none);
}
#ifdef OBJ_ELF
struct reloc_entry
{
- char * name;
+ const char * name;
bfd_reloc_code_real_type reloc;
};
_("cannot use register index with PC-relative addressing")
#define BAD_PC_WRITEBACK \
_("cannot use writeback with PC-relative addressing")
-#define BAD_RANGE _("branch out of range")
+#define BAD_RANGE _("branch out of range")
+#define BAD_FP16 _("selected processor does not support fp16 instruction")
#define UNPRED_REG(R) _("using " R " results in unpredictable behaviour")
+#define THUMB1_RELOC_ONLY _("relocation valid in thumb1 code only")
static struct hash_control * arm_ops_hsh;
static struct hash_control * arm_cond_hsh;
??? The format of 12 byte floats is uncertain according to gcc's arm.h. */
-char *
+const char *
md_atof (int type, char * litP, int * sizeP)
{
int prec;
const char *const incr_error = _("register stride must be 1 or 2");
const char *const type_error = _("mismatched element/structure types in list");
struct neon_typed_alias firsttype;
+ firsttype.defined = 0;
+ firsttype.eltype.type = NT_invtype;
+ firsttype.eltype.size = -1;
+ firsttype.index = -1;
if (skip_past_char (&ptr, '{') == SUCCESS)
leading_brace = 1;
}
name = xstrdup (str);
- new_reg = (struct reg_entry *) xmalloc (sizeof (struct reg_entry));
+ new_reg = XNEW (struct reg_entry);
new_reg->name = name;
new_reg->number = number;
if (atype)
{
- reg->neon = (struct neon_typed_alias *)
- xmalloc (sizeof (struct neon_typed_alias));
+ reg->neon = XNEW (struct neon_typed_alias);
*reg->neon = *atype;
}
}
nlen = strlen (newname);
#endif
- nbuf = (char *) alloca (nlen + 1);
+ nbuf = xmalloc (nlen + 1);
memcpy (nbuf, newname, nlen);
nbuf[nlen] = '\0';
the artificial FOO alias because it has already been created by the
first .req. */
if (insert_reg_alias (nbuf, old->number, old->type) == NULL)
- return TRUE;
+ {
+ free (nbuf);
+ return TRUE;
+ }
}
for (p = nbuf; *p; p++)
insert_reg_alias (nbuf, old->number, old->type);
}
+ free (nbuf);
return TRUE;
}
namelen = strlen (newname);
#endif
- namebuf = (char *) alloca (namelen + 1);
+ namebuf = xmalloc (namelen + 1);
strncpy (namebuf, newname, namelen);
namebuf[namelen] = '\0';
insert_neon_reg_alias (namebuf, basereg->number, basetype,
typeinfo.defined != 0 ? &typeinfo : NULL);
+ free (namebuf);
return TRUE;
}
/* Set the mapping state to STATE. Only call this when about to
emit some STATE bytes to the file. */
+#define TRANSITION(from, to) (mapstate == (from) && state == (to))
void
mapping_state (enum mstate state)
{
enum mstate mapstate = seg_info (now_seg)->tc_segment_info_data.mapstate;
-#define TRANSITION(from, to) (mapstate == (from) && state == (to))
-
if (mapstate == state)
/* The mapping symbol has already been emitted.
There is nothing else to do. */
record_alignment (now_seg, state == MAP_ARM ? 2 : 1);
if (TRANSITION (MAP_UNDEFINED, MAP_DATA))
- /* This case will be evaluated later in the next else. */
+ /* This case will be evaluated later. */
return;
- else if (TRANSITION (MAP_UNDEFINED, MAP_ARM)
- || TRANSITION (MAP_UNDEFINED, MAP_THUMB))
- {
- /* Only add the symbol if the offset is > 0:
- if we're at the first frag, check it's size > 0;
- if we're not at the first frag, then for sure
- the offset is > 0. */
- struct frag * const frag_first = seg_info (now_seg)->frchainP->frch_root;
- const int add_symbol = (frag_now != frag_first) || (frag_now_fix () > 0);
-
- if (add_symbol)
- make_mapping_symbol (MAP_DATA, (valueT) 0, frag_first);
- }
mapping_state_2 (state, 0);
-#undef TRANSITION
}
/* Same as mapping_state, but MAX_CHARS bytes have already been
There is nothing else to do. */
return;
+ if (TRANSITION (MAP_UNDEFINED, MAP_ARM)
+ || TRANSITION (MAP_UNDEFINED, MAP_THUMB))
+ {
+ struct frag * const frag_first = seg_info (now_seg)->frchainP->frch_root;
+ const int add_symbol = (frag_now != frag_first) || (frag_now_fix () > 0);
+
+ if (add_symbol)
+ make_mapping_symbol (MAP_DATA, (valueT) 0, frag_first);
+ }
+
seg_info (now_seg)->tc_segment_info_data.mapstate = state;
make_mapping_symbol (state, (valueT) frag_now_fix () - max_chars, frag_now);
}
+#undef TRANSITION
#else
#define mapping_state(x) ((void)0)
#define mapping_state_2(x, y) ((void)0)
if (S_IS_LOCAL (symbolP) || name[0] == '.')
return symbolP;
- real_start = ACONCAT ((STUB_NAME, name, NULL));
+ real_start = concat (STUB_NAME, name, NULL);
new_target = symbol_find (real_start);
+ free (real_start);
if (new_target == NULL)
{
/* Especial apologies for the random logic:
This just grew, and could be parsed much more simply!
Dean - in haste. */
- name = input_line_pointer;
- delim = get_symbol_end ();
+ delim = get_symbol_name (& name);
end_name = input_line_pointer;
- *end_name = delim;
+ (void) restore_line_pointer (delim);
if (*input_line_pointer != ',')
{
{
char *name, delim;
- name = input_line_pointer;
- delim = get_symbol_end ();
+ delim = get_symbol_name (& name);
if (!strcasecmp (name, "unified"))
unified_syntax = TRUE;
as_bad (_("unrecognized syntax mode \"%s\""), name);
return;
}
- *input_line_pointer = delim;
+ (void) restore_line_pointer (delim);
demand_empty_rest_of_line ();
}
/* Directives: sectioning and alignment. */
-/* Same as s_align_ptwo but align 0 => align 2. */
-
-static void
-s_align (int unused ATTRIBUTE_UNUSED)
-{
- int temp;
- bfd_boolean fill_p;
- long temp_fill;
- long max_alignment = 15;
-
- temp = get_absolute_expression ();
- if (temp > max_alignment)
- as_bad (_("alignment too large: %d assumed"), temp = max_alignment);
- else if (temp < 0)
- {
- as_bad (_("alignment negative. 0 assumed."));
- temp = 0;
- }
-
- if (*input_line_pointer == ',')
- {
- input_line_pointer++;
- temp_fill = get_absolute_expression ();
- fill_p = TRUE;
- }
- else
- {
- fill_p = FALSE;
- temp_fill = 0;
- }
-
- if (!temp)
- temp = 2;
-
- /* Only make a frag if we HAVE to. */
- if (temp && !need_pass_2)
- {
- if (!fill_p && subseg_text_p (now_seg))
- frag_align_code (temp, 0);
- else
- frag_align (temp, (int) temp_fill, 0);
- }
- demand_empty_rest_of_line ();
-
- record_alignment (now_seg, temp);
-}
-
static void
s_bss (int ignore ATTRIBUTE_UNUSED)
{
if (pool == NULL)
{
/* Create a new pool. */
- pool = (literal_pool *) xmalloc (sizeof (* pool));
+ pool = XNEW (literal_pool);
if (! pool)
return NULL;
}
bfd_boolean
-tc_start_label_without_colon (char unused1 ATTRIBUTE_UNUSED, const char * rest)
+tc_start_label_without_colon (void)
{
bfd_boolean ret = TRUE;
if (codecomposer_syntax && asmfunc_state == WAITING_ASMFUNC_NAME)
{
- const char *label = rest;
+ const char *label = input_line_pointer;
while (!is_end_of_line[(int) label[-1]])
--label;
XXX Surely there is a cleaner way to do this. */
char *p = input_line_pointer;
int offset;
- char *save_buf = (char *) alloca (input_line_pointer - base);
+ char *save_buf = XNEWVEC (char, input_line_pointer - base);
+
memcpy (save_buf, base, input_line_pointer - base);
memmove (base + (input_line_pointer - before_reloc),
base, before_reloc - base);
memset (p, 0, nbytes);
fix_new_exp (frag_now, p - frag_now->fr_literal + offset,
size, &exp, 0, (enum bfd_reloc_code_real) reloc);
+ free (save_buf);
}
}
}
if (unwind.personality_routine || unwind.personality_index != -1)
as_bad (_("duplicate .personality directive"));
- name = input_line_pointer;
- c = get_symbol_end ();
+ c = get_symbol_name (& name);
p = input_line_pointer;
+ if (c == '"')
+ ++ input_line_pointer;
unwind.personality_routine = symbol_find_or_make (name);
*p = c;
demand_empty_rest_of_line ();
{ "qn", s_qn, 0 },
{ "unreq", s_unreq, 0 },
{ "bss", s_bss, 0 },
- { "align", s_align, 0 },
+ { "align", s_align_ptwo, 2 },
{ "arm", s_arm, 0 },
{ "thumb", s_thumb, 0 },
{ "code", s_code, 0 },
{
/* FIXME: 5 = X_PRECISION, should be #define'd where we can use it.
Ditto for 15. */
- if (gen_to_words (words, 5, (long) 15) == 0)
+#define X_PRECISION 5
+#define E_PRECISION 15L
+ if (gen_to_words (words, X_PRECISION, E_PRECISION) == 0)
{
for (i = 0; i < NUM_FLOAT_VALS; i++)
{
return FALSE;
++*in;
+
+ /* Accept #0x0 as a synonym for #0. */
+ if (strncmp (*in, "0x", 2) == 0)
+ {
+ int val;
+ if (parse_immediate (in, &val, 0, 0, TRUE) == FAIL)
+ return FALSE;
+ return TRUE;
+ }
+
error_code = atof_generic (in, ".", EXP_CHARS,
&generic_floating_point_number);
BFD_RELOC_ARM_ALU_SB_G2, /* ALU */
BFD_RELOC_ARM_LDR_SB_G2, /* LDR */
BFD_RELOC_ARM_LDRS_SB_G2, /* LDRS */
- BFD_RELOC_ARM_LDC_SB_G2 } }; /* LDC */
+ BFD_RELOC_ARM_LDC_SB_G2 }, /* LDC */
+ /* Absolute thumb alu relocations. */
+ { "lower0_7",
+ BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC,/* ALU. */
+ 0, /* LDR. */
+ 0, /* LDRS. */
+ 0 }, /* LDC. */
+ { "lower8_15",
+ BFD_RELOC_ARM_THUMB_ALU_ABS_G1_NC,/* ALU. */
+ 0, /* LDR. */
+ 0, /* LDRS. */
+ 0 }, /* LDC. */
+ { "upper0_7",
+ BFD_RELOC_ARM_THUMB_ALU_ABS_G2_NC,/* ALU. */
+ 0, /* LDR. */
+ 0, /* LDRS. */
+ 0 }, /* LDC. */
+ { "upper8_15",
+ BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC,/* ALU. */
+ 0, /* LDR. */
+ 0, /* LDRS. */
+ 0 } }; /* LDC. */
/* Given the address of a pointer pointing to the textual name of a group
relocation as may appear in assembler source, attempt to find its details
/* PR gas/12698: If the user has specified -march=all then m_profile will
be TRUE, but we want to ignore it in this case as we are building for any
CPU type, including non-m variants. */
- if (selected_cpu.core == arm_arch_any.core)
+ if (ARM_FEATURE_CORE_EQUAL (selected_cpu, arm_arch_any))
m_profile = FALSE;
/* CPSR's and SPSR's can now be lowercase. This is just a convenience
return c->value;
}
+/* Record a use of the given feature. */
+static void
+record_feature_use (const arm_feature_set *feature)
+{
+ if (thumb_mode)
+ ARM_MERGE_FEATURE_SETS (thumb_arch_used, thumb_arch_used, *feature);
+ else
+ ARM_MERGE_FEATURE_SETS (arm_arch_used, arm_arch_used, *feature);
+}
+
/* If the given feature available in the selected CPU, mark it as used.
Returns TRUE iff feature is available. */
static bfd_boolean
/* Add the appropriate architecture feature for the barrier option used.
*/
- if (thumb_mode)
- ARM_MERGE_FEATURE_SETS (thumb_arch_used, thumb_arch_used, *feature);
- else
- ARM_MERGE_FEATURE_SETS (arm_arch_used, arm_arch_used, *feature);
+ record_feature_use (feature);
return TRUE;
}
val = parse_reg_list (&str);
if (*str == '^')
{
- inst.operands[1].writeback = 1;
+ inst.operands[i].writeback = 1;
str++;
}
break;
#define warn_deprecated_sp(reg) \
do \
if (warn_on_deprecated && reg == REG_SP) \
- as_warn (_("use of r13 is deprecated")); \
+ as_tsktsk (_("use of r13 is deprecated")); \
while (0)
/* Functions for operand encoding. ARM, then Thumb. */
#define rotate_left(v, n) (v << (n & 31) | v >> ((32 - n) & 31))
+/* If the current inst is scalar ARMv8.2 fp16 instruction, do special encoding.
+
+ The only binary encoding difference is the Coprocessor number. Coprocessor
+ 9 is used for half-precision calculations or conversions. The format of the
+ instruction is the same as the equivalent Coprocessor 10 instuction that
+ exists for Single-Precision operation. */
+
+static void
+do_scalar_fp16_v82_encode (void)
+{
+ if (inst.cond != COND_ALWAYS)
+ as_warn (_("ARMv8.2 scalar fp16 instruction cannot be conditional,"
+ " the behaviour is UNPREDICTABLE"));
+ constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_fp16),
+ _(BAD_FP16));
+
+ inst.instruction = (inst.instruction & 0xfffff0ff) | 0x900;
+ mark_feature_used (&arm_ext_fp16);
+}
+
/* If VAL can be encoded in the immediate field of an ARM instruction,
return the encoded form. Otherwise, return FAIL. */
{
unsigned int a, i;
- for (i = 0; i < 32; i += 2)
+ if (val <= 0xff)
+ return val;
+
+ for (i = 2; i < 32; i += 2)
if ((a = rotate_left (val, i)) <= 0xff)
return a | (i << 7); /* 12-bit pack: [shift-cnt,const]. */
if (warn_on_deprecated
&& !is_load
&& ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v7))
- as_warn (_("use of PC in this instruction is deprecated"));
+ as_tsktsk (_("use of PC in this instruction is deprecated"));
}
if (inst.reloc.type == BFD_RELOC_UNUSED)
return FAIL;
}
+#if defined BFD_HOST_64_BIT
+/* Returns TRUE if double precision value V may be cast
+ to single precision without loss of accuracy. */
+
+static bfd_boolean
+is_double_a_single (bfd_int64_t v)
+{
+ int exp = (int)((v >> 52) & 0x7FF);
+ bfd_int64_t mantissa = (v & (bfd_int64_t)0xFFFFFFFFFFFFFULL);
+
+ return (exp == 0 || exp == 0x7FF
+ || (exp >= 1023 - 126 && exp <= 1023 + 127))
+ && (mantissa & 0x1FFFFFFFl) == 0;
+}
+
+/* Returns a double precision value casted to single precision
+ (ignoring the least significant bits in exponent and mantissa). */
+
+static int
+double_to_single (bfd_int64_t v)
+{
+ int sign = (int) ((v >> 63) & 1l);
+ int exp = (int) ((v >> 52) & 0x7FF);
+ bfd_int64_t mantissa = (v & (bfd_int64_t)0xFFFFFFFFFFFFFULL);
+
+ if (exp == 0x7FF)
+ exp = 0xFF;
+ else
+ {
+ exp = exp - 1023 + 127;
+ if (exp >= 0xFF)
+ {
+ /* Infinity. */
+ exp = 0x7F;
+ mantissa = 0;
+ }
+ else if (exp < 0)
+ {
+ /* No denormalized numbers. */
+ exp = 0;
+ mantissa = 0;
+ }
+ }
+ mantissa >>= 29;
+ return (sign << 31) | (exp << 23) | mantissa;
+}
+#endif /* BFD_HOST_64_BIT */
+
enum lit_type
{
CONST_THUMB,
CONST_VEC
};
+static void do_vfp_nsyn_opcode (const char *);
+
/* inst.reloc.exp describes an "=expr" load pseudo-operation.
Determine whether it can be performed with a move instruction; if
it can, convert inst.instruction to that move instruction and
unsigned long tbit;
bfd_boolean thumb_p = (t == CONST_THUMB);
bfd_boolean arm_p = (t == CONST_ARM);
- bfd_boolean vec64_p = (t == CONST_VEC) && !inst.operands[i].issingle;
if (thumb_p)
tbit = (inst.instruction > 0xffff) ? THUMB2_LOAD_BIT : THUMB_LOAD_BIT;
inst.error = _("invalid pseudo operation");
return TRUE;
}
+
if (inst.reloc.exp.X_op != O_constant
&& inst.reloc.exp.X_op != O_symbol
&& inst.reloc.exp.X_op != O_big)
inst.error = _("constant expression expected");
return TRUE;
}
- if ((inst.reloc.exp.X_op == O_constant
- || inst.reloc.exp.X_op == O_big)
- && !inst.operands[i].issingle)
+
+ if (inst.reloc.exp.X_op == O_constant
+ || inst.reloc.exp.X_op == O_big)
{
- if (thumb_p && inst.reloc.exp.X_op == O_constant)
+#if defined BFD_HOST_64_BIT
+ bfd_int64_t v;
+#else
+ offsetT v;
+#endif
+ if (inst.reloc.exp.X_op == O_big)
{
- if (!unified_syntax && (inst.reloc.exp.X_add_number & ~0xFF) == 0)
+ LITTLENUM_TYPE w[X_PRECISION];
+ LITTLENUM_TYPE * l;
+
+ if (inst.reloc.exp.X_add_number == -1)
{
- /* This can be done with a mov(1) instruction. */
- inst.instruction = T_OPCODE_MOV_I8 | (inst.operands[i].reg << 8);
- inst.instruction |= inst.reloc.exp.X_add_number;
- return TRUE;
+ gen_to_words (w, X_PRECISION, E_PRECISION);
+ l = w;
+ /* FIXME: Should we check words w[2..5] ? */
}
+ else
+ l = generic_bignum;
+
+#if defined BFD_HOST_64_BIT
+ v =
+ ((((((((bfd_int64_t) l[3] & LITTLENUM_MASK)
+ << LITTLENUM_NUMBER_OF_BITS)
+ | ((bfd_int64_t) l[2] & LITTLENUM_MASK))
+ << LITTLENUM_NUMBER_OF_BITS)
+ | ((bfd_int64_t) l[1] & LITTLENUM_MASK))
+ << LITTLENUM_NUMBER_OF_BITS)
+ | ((bfd_int64_t) l[0] & LITTLENUM_MASK));
+#else
+ v = ((l[1] & LITTLENUM_MASK) << LITTLENUM_NUMBER_OF_BITS)
+ | (l[0] & LITTLENUM_MASK);
+#endif
}
- else if (arm_p && inst.reloc.exp.X_op == O_constant)
+ else
+ v = inst.reloc.exp.X_add_number;
+
+ if (!inst.operands[i].issingle)
{
- int value = encode_arm_immediate (inst.reloc.exp.X_add_number);
- if (value != FAIL)
+ if (thumb_p)
{
- /* This can be done with a mov instruction. */
- inst.instruction &= LITERAL_MASK;
- inst.instruction |= INST_IMMEDIATE | (OPCODE_MOV << DATA_OP_SHIFT);
- inst.instruction |= value & 0xfff;
- return TRUE;
+ /* This can be encoded only for a low register. */
+ if ((v & ~0xFF) == 0 && (inst.operands[i].reg < 8))
+ {
+ /* This can be done with a mov(1) instruction. */
+ inst.instruction = T_OPCODE_MOV_I8 | (inst.operands[i].reg << 8);
+ inst.instruction |= v;
+ return TRUE;
+ }
+
+ if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2)
+ || ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2_v8m))
+ {
+ /* Check if on thumb2 it can be done with a mov.w, mvn or
+ movw instruction. */
+ unsigned int newimm;
+ bfd_boolean isNegated;
+
+ newimm = encode_thumb32_immediate (v);
+ if (newimm != (unsigned int) FAIL)
+ isNegated = FALSE;
+ else
+ {
+ newimm = encode_thumb32_immediate (~v);
+ if (newimm != (unsigned int) FAIL)
+ isNegated = TRUE;
+ }
+
+ /* The number can be loaded with a mov.w or mvn
+ instruction. */
+ if (newimm != (unsigned int) FAIL
+ && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2))
+ {
+ inst.instruction = (0xf04f0000 /* MOV.W. */
+ | (inst.operands[i].reg << 8));
+ /* Change to MOVN. */
+ inst.instruction |= (isNegated ? 0x200000 : 0);
+ inst.instruction |= (newimm & 0x800) << 15;
+ inst.instruction |= (newimm & 0x700) << 4;
+ inst.instruction |= (newimm & 0x0ff);
+ return TRUE;
+ }
+ /* The number can be loaded with a movw instruction. */
+ else if ((v & ~0xFFFF) == 0
+ && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2_v8m))
+ {
+ int imm = v & 0xFFFF;
+
+ inst.instruction = 0xf2400000; /* MOVW. */
+ inst.instruction |= (inst.operands[i].reg << 8);
+ inst.instruction |= (imm & 0xf000) << 4;
+ inst.instruction |= (imm & 0x0800) << 15;
+ inst.instruction |= (imm & 0x0700) << 4;
+ inst.instruction |= (imm & 0x00ff);
+ return TRUE;
+ }
+ }
}
+ else if (arm_p)
+ {
+ int value = encode_arm_immediate (v);
+
+ if (value != FAIL)
+ {
+ /* This can be done with a mov instruction. */
+ inst.instruction &= LITERAL_MASK;
+ inst.instruction |= INST_IMMEDIATE | (OPCODE_MOV << DATA_OP_SHIFT);
+ inst.instruction |= value & 0xfff;
+ return TRUE;
+ }
- value = encode_arm_immediate (~inst.reloc.exp.X_add_number);
- if (value != FAIL)
+ value = encode_arm_immediate (~ v);
+ if (value != FAIL)
+ {
+ /* This can be done with a mvn instruction. */
+ inst.instruction &= LITERAL_MASK;
+ inst.instruction |= INST_IMMEDIATE | (OPCODE_MVN << DATA_OP_SHIFT);
+ inst.instruction |= value & 0xfff;
+ return TRUE;
+ }
+ }
+ else if (t == CONST_VEC)
{
- /* This can be done with a mvn instruction. */
- inst.instruction &= LITERAL_MASK;
- inst.instruction |= INST_IMMEDIATE | (OPCODE_MVN << DATA_OP_SHIFT);
- inst.instruction |= value & 0xfff;
- return TRUE;
+ int op = 0;
+ unsigned immbits = 0;
+ unsigned immlo = inst.operands[1].imm;
+ unsigned immhi = inst.operands[1].regisimm
+ ? inst.operands[1].reg
+ : inst.reloc.exp.X_unsigned
+ ? 0
+ : ((bfd_int64_t)((int) immlo)) >> 32;
+ int cmode = neon_cmode_for_move_imm (immlo, immhi, FALSE, &immbits,
+ &op, 64, NT_invtype);
+
+ if (cmode == FAIL)
+ {
+ neon_invert_size (&immlo, &immhi, 64);
+ op = !op;
+ cmode = neon_cmode_for_move_imm (immlo, immhi, FALSE, &immbits,
+ &op, 64, NT_invtype);
+ }
+
+ if (cmode != FAIL)
+ {
+ inst.instruction = (inst.instruction & VLDR_VMOV_SAME)
+ | (1 << 23)
+ | (cmode << 8)
+ | (op << 5)
+ | (1 << 4);
+
+ /* Fill other bits in vmov encoding for both thumb and arm. */
+ if (thumb_mode)
+ inst.instruction |= (0x7U << 29) | (0xF << 24);
+ else
+ inst.instruction |= (0xFU << 28) | (0x1 << 25);
+ neon_write_immbits (immbits);
+ return TRUE;
+ }
}
}
- else if (vec64_p)
- {
- int op = 0;
- unsigned immbits = 0;
- unsigned immlo = inst.operands[1].imm;
- unsigned immhi = inst.operands[1].regisimm
- ? inst.operands[1].reg
- : inst.reloc.exp.X_unsigned
- ? 0
- : ((bfd_int64_t)((int) immlo)) >> 32;
- int cmode = neon_cmode_for_move_imm (immlo, immhi, FALSE, &immbits,
- &op, 64, NT_invtype);
- if (cmode == FAIL)
+ if (t == CONST_VEC)
+ {
+ /* Check if vldr Rx, =constant could be optimized to vmov Rx, #constant. */
+ if (inst.operands[i].issingle
+ && is_quarter_float (inst.operands[1].imm)
+ && ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v3xd))
{
- neon_invert_size (&immlo, &immhi, 64);
- op = !op;
- cmode = neon_cmode_for_move_imm (immlo, immhi, FALSE, &immbits,
- &op, 64, NT_invtype);
+ inst.operands[1].imm =
+ neon_qfloat_bits (v);
+ do_vfp_nsyn_opcode ("fconsts");
+ return TRUE;
}
- if (cmode != FAIL)
+
+ /* If our host does not support a 64-bit type then we cannot perform
+ the following optimization. This mean that there will be a
+ discrepancy between the output produced by an assembler built for
+ a 32-bit-only host and the output produced from a 64-bit host, but
+ this cannot be helped. */
+#if defined BFD_HOST_64_BIT
+ else if (!inst.operands[1].issingle
+ && ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_v3))
{
- inst.instruction = (inst.instruction & VLDR_VMOV_SAME)
- | (1 << 23)
- | (cmode << 8)
- | (op << 5)
- | (1 << 4);
- /* Fill other bits in vmov encoding for both thumb and arm. */
- if (thumb_mode)
- inst.instruction |= (0x7 << 29) | (0xF << 24);
- else
- inst.instruction |= (0xF << 28) | (0x1 << 25);
- neon_write_immbits (immbits);
- return TRUE;
+ if (is_double_a_single (v)
+ && is_quarter_float (double_to_single (v)))
+ {
+ inst.operands[1].imm =
+ neon_qfloat_bits (double_to_single (v));
+ do_vfp_nsyn_opcode ("fconstd");
+ return TRUE;
+ }
}
+#endif
}
}
{
if (!inst.operands[i].isreg)
{
- gas_assert (inst.operands[0].isvec);
+ /* PR 18256 */
+ if (! inst.operands[0].isvec)
+ {
+ inst.error = _("invalid co-processor operand");
+ return FAIL;
+ }
if (move_or_literal_pool (0, CONST_VEC, /*mode_3=*/FALSE))
return SUCCESS;
}
inst.instruction |= inst.operands[1].reg << 12;
}
+static void
+do_tt (void)
+{
+ inst.instruction |= inst.operands[0].reg << 8;
+ inst.instruction |= inst.operands[1].reg << 16;
+}
+
static bfd_boolean
check_obsolete (const arm_feature_set *feature, const char *msg)
{
if (ARM_CPU_IS_ANY (cpu_variant))
{
- as_warn ("%s", msg);
+ as_tsktsk ("%s", msg);
return TRUE;
}
else if (ARM_CPU_HAS_FEATURE (cpu_variant, *feature))
_("swp{b} use is obsoleted for ARMv8 and later"))
&& warn_on_deprecated
&& ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6))
- as_warn (_("swp{b} use is deprecated for ARMv6 and ARMv7"));
+ as_tsktsk (_("swp{b} use is deprecated for ARMv6 and ARMv7"));
}
inst.instruction |= inst.operands[0].reg << 12;
static void
do_arit (void)
{
+ constraint (inst.reloc.type >= BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC
+ && inst.reloc.type <= BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC ,
+ THUMB1_RELOC_ONLY);
if (!inst.operands[1].present)
inst.operands[1].reg = inst.operands[0].reg;
inst.instruction |= inst.operands[0].reg << 12;
static struct deprecated_coproc_regs_s deprecated_coproc_regs[] =
{
{15, 0, 7, 10, 5, /* CP15DMB. */
- ARM_FEATURE (ARM_EXT_V8, 0), ARM_FEATURE (0, 0),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V8), ARM_ARCH_NONE,
DEPR_ACCESS_V8, NULL},
{15, 0, 7, 10, 4, /* CP15DSB. */
- ARM_FEATURE (ARM_EXT_V8, 0), ARM_FEATURE (0, 0),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V8), ARM_ARCH_NONE,
DEPR_ACCESS_V8, NULL},
{15, 0, 7, 5, 4, /* CP15ISB. */
- ARM_FEATURE (ARM_EXT_V8, 0), ARM_FEATURE (0, 0),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V8), ARM_ARCH_NONE,
DEPR_ACCESS_V8, NULL},
{14, 6, 1, 0, 0, /* TEEHBR. */
- ARM_FEATURE (ARM_EXT_V8, 0), ARM_FEATURE (0, 0),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V8), ARM_ARCH_NONE,
DEPR_ACCESS_V8, NULL},
{14, 6, 0, 0, 0, /* TEECR. */
- ARM_FEATURE (ARM_EXT_V8, 0), ARM_FEATURE (0, 0),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V8), ARM_ARCH_NONE,
DEPR_ACCESS_V8, NULL},
};
if (! ARM_CPU_IS_ANY (cpu_variant)
&& warn_on_deprecated
&& ARM_CPU_HAS_FEATURE (cpu_variant, r->deprecated))
- as_warn ("%s", r->dep_msg);
+ as_tsktsk ("%s", r->dep_msg);
}
}
static void
do_mov (void)
{
+ constraint (inst.reloc.type >= BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC
+ && inst.reloc.type <= BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC ,
+ THUMB1_RELOC_ONLY);
inst.instruction |= inst.operands[0].reg << 12;
encode_arm_shifter_operand (1);
}
}
}
-static void do_vfp_nsyn_opcode (const char *);
-
static int
do_vfp_nsyn_mrs (void)
{
static void
do_push_pop (void)
{
+ constraint (inst.operands[0].writeback,
+ _("push/pop do not support {reglist}^"));
inst.operands[1] = inst.operands[0];
memset (&inst.operands[0], 0, sizeof inst.operands[0]);
inst.operands[0].isreg = 1;
{
if (warn_on_deprecated
&& ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8))
- as_warn (_("setend use is deprecated for ARMv8"));
+ as_tsktsk (_("setend use is deprecated for ARMv8"));
if (inst.operands[0].imm)
inst.instruction |= 0x200;
inst.reloc.pc_rel = 0;
}
+static void
+do_setpan (void)
+{
+ constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_pan),
+ _("selected processor does not support SETPAN instruction"));
+
+ inst.instruction |= ((inst.operands[0].imm & 1) << 9);
+}
+
+static void
+do_t_setpan (void)
+{
+ constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_pan),
+ _("selected processor does not support SETPAN instruction"));
+
+ inst.instruction |= (inst.operands[0].imm << 3);
+}
+
/* ARM V5E (El Segundo) signed-multiply-accumulate (argument parse)
SMLAxy{cond} Rd,Rm,Rs,Rn
SMLAWy{cond} Rd,Rm,Rs,Rn
&& inst.operands[1].immisreg)
{
inst.instruction &= ~0x1a000ff;
- inst.instruction |= (0xf << 28);
+ inst.instruction |= (0xfU << 28);
if (inst.operands[1].preind)
inst.instruction |= PRE_INDEX;
if (!inst.operands[1].negative)
}
/* Map 32 -> 0, etc. */
inst.operands[2].imm &= 0x1f;
- inst.instruction |= (0xf << 28) | ((inst.operands[2].imm & 0x10) << 4) | (inst.operands[2].imm & 0xf);
+ inst.instruction |= (0xfU << 28) | ((inst.operands[2].imm & 0x10) << 4) | (inst.operands[2].imm & 0xf);
}
}
\f
{
inst.instruction = THUMB_OP16(opcode);
inst.instruction |= (Rd << 4) | Rs;
- inst.reloc.type = BFD_RELOC_ARM_THUMB_ADD;
- if (inst.size_req != 2)
- inst.relax = opcode;
+ if (inst.reloc.type < BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC
+ || inst.reloc.type > BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC)
+ {
+ if (inst.size_req == 2)
+ inst.reloc.type = BFD_RELOC_ARM_THUMB_ADD;
+ else
+ inst.relax = opcode;
+ }
}
else
constraint (inst.size_req == 2, BAD_HIREG);
if (inst.size_req == 4
|| (inst.size_req != 2 && !opcode))
{
+ constraint (inst.reloc.type >= BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC
+ && inst.reloc.type <= BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC ,
+ THUMB1_RELOC_ONLY);
if (Rd == REG_PC)
{
constraint (add, BAD_PC);
{
int opcode;
int cond;
- int reloc;
+ bfd_reloc_code_real_type reloc;
cond = inst.cond;
set_it_insn_type (IF_INSIDE_IT_LAST_INSN);
reloc = BFD_RELOC_THUMB_PCREL_BRANCH25;
else
{
+ constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2),
+ _("selected architecture does not support "
+ "wide conditional branch instruction"));
+
gas_assert (cond != 0xF);
inst.instruction |= cond << 22;
reloc = BFD_RELOC_THUMB_PCREL_BRANCH20;
if ((Rn == REG_SP || Rn == REG_PC)
&& (Rm == REG_SP || Rm == REG_PC))
{
- as_warn (_("Use of r%u as a source register is "
+ as_tsktsk (_("Use of r%u as a source register is "
"deprecated when r%u is the destination "
"register."), Rm, Rn);
}
{
inst.instruction = THUMB_OP16 (opcode);
inst.instruction |= Rn << 8;
- if (inst.size_req == 2)
- inst.reloc.type = BFD_RELOC_ARM_THUMB_IMM;
- else
- inst.relax = opcode;
+ if (inst.reloc.type < BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC
+ || inst.reloc.type > BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC)
+ {
+ if (inst.size_req == 2)
+ inst.reloc.type = BFD_RELOC_ARM_THUMB_IMM;
+ else
+ inst.relax = opcode;
+ }
}
else
{
+ constraint (inst.reloc.type >= BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC
+ && inst.reloc.type <= BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC ,
+ THUMB1_RELOC_ONLY);
+
inst.instruction = THUMB_OP32 (inst.instruction);
inst.instruction = (inst.instruction & 0xe1ffffff) | 0x10000000;
inst.instruction |= Rn << r0off;
/* PR gas/12698: The constraint is only applied for m_profile.
If the user has specified -march=all, we want to ignore it as
we are building for any CPU type, including non-m variants. */
- bfd_boolean m_profile = selected_cpu.core != arm_arch_any.core;
+ bfd_boolean m_profile =
+ !ARM_FEATURE_CORE_EQUAL (selected_cpu, arm_arch_any);
constraint ((flags != 0) && m_profile, _("selected processor does "
"not support requested special purpose register"));
}
/* PR gas/12698: The constraint is only applied for m_profile.
If the user has specified -march=all, we want to ignore it as
we are building for any CPU type, including non-m variants. */
- bfd_boolean m_profile = selected_cpu.core != arm_arch_any.core;
+ bfd_boolean m_profile =
+ !ARM_FEATURE_CORE_EQUAL (selected_cpu, arm_arch_any);
constraint (((ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v6_dsp)
&& (bits & ~(PSR_s | PSR_f)) != 0)
|| (!ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v6_dsp)
if (inst.size_req != 4 && (mask & ~0xff) == 0)
inst.instruction = THUMB_OP16 (inst.instruction) | mask;
else if (inst.size_req != 4
- && (mask & ~0xff) == (1 << (inst.instruction == T_MNEM_push
+ && (mask & ~0xff) == (1U << (inst.instruction == T_MNEM_push
? REG_LR : REG_PC)))
{
inst.instruction = THUMB_OP16 (inst.instruction);
{
if (warn_on_deprecated
&& ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v8))
- as_warn (_("setend use is deprecated for ARMv8"));
+ as_tsktsk (_("setend use is deprecated for ARMv8"));
set_it_insn_type (OUTSIDE_IT_INSN);
if (inst.operands[0].imm)
X(vqdmull, 0x0800d00, N_INV, 0x0800b40), \
X(vqdmulh, 0x0000b00, N_INV, 0x0800c40), \
X(vqrdmulh, 0x1000b00, N_INV, 0x0800d40), \
+ X(vqrdmlah, 0x3000b10, N_INV, 0x0800e40), \
+ X(vqrdmlsh, 0x3000c10, N_INV, 0x0800f40), \
X(vshl, 0x0000400, N_INV, 0x0800510), \
X(vqshl, 0x0000410, N_INV, 0x0800710), \
X(vand, 0x0000110, N_INV, 0x0800030), \
X(2, (S, R), SINGLE), \
X(2, (R, S), SINGLE), \
X(2, (F, R), SINGLE), \
- X(2, (R, F), SINGLE)
+ X(2, (R, F), SINGLE), \
+/* Half float shape supported so far. */\
+ X (2, (H, D), MIXED), \
+ X (2, (D, H), MIXED), \
+ X (2, (H, F), MIXED), \
+ X (2, (F, H), MIXED), \
+ X (2, (H, H), HALF), \
+ X (2, (H, R), HALF), \
+ X (2, (R, H), HALF), \
+ X (2, (H, I), HALF), \
+ X (3, (H, H, H), HALF), \
+ X (3, (H, F, I), MIXED), \
+ X (3, (F, H, I), MIXED)
#define S2(A,B) NS_##A##B
#define S3(A,B,C) NS_##A##B##C
enum neon_shape_class
{
+ SC_HALF,
SC_SINGLE,
SC_DOUBLE,
SC_QUAD,
enum neon_shape_el
{
+ SE_H,
SE_F,
SE_D,
SE_Q,
/* Register widths of above. */
static unsigned neon_shape_el_size[] =
{
+ 16,
32,
64,
128,
#define N_SU_ALL (N_S8 | N_S16 | N_S32 | N_S64 | N_U8 | N_U16 | N_U32 | N_U64)
#define N_SU_32 (N_S8 | N_S16 | N_S32 | N_U8 | N_U16 | N_U32)
#define N_SU_16_64 (N_S16 | N_S32 | N_S64 | N_U16 | N_U32 | N_U64)
-#define N_SUF_32 (N_SU_32 | N_F32)
+#define N_S_32 (N_S8 | N_S16 | N_S32)
+#define N_F_16_32 (N_F16 | N_F32)
+#define N_SUF_32 (N_SU_32 | N_F_16_32)
#define N_I_ALL (N_I8 | N_I16 | N_I32 | N_I64)
-#define N_IF_32 (N_I8 | N_I16 | N_I32 | N_F32)
+#define N_IF_32 (N_I8 | N_I16 | N_I32 | N_F16 | N_F32)
+#define N_F_ALL (N_F16 | N_F32 | N_F64)
/* Pass this as the first type argument to neon_check_type to ignore types
altogether. */
switch (neon_shape_tab[shape].el[j])
{
+ /* If a .f16, .16, .u16, .s16 type specifier is given over
+ a VFP single precision register operand, it's essentially
+ means only half of the register is used.
+
+ If the type specifier is given after the mnemonics, the
+ information is stored in inst.vectype. If the type specifier
+ is given after register operand, the information is stored
+ in inst.operands[].vectype.
+
+ When there is only one type specifier, and all the register
+ operands are the same type of hardware register, the type
+ specifier applies to all register operands.
+
+ If no type specifier is given, the shape is inferred from
+ operand information.
+
+ for example:
+ vadd.f16 s0, s1, s2: NS_HHH
+ vabs.f16 s0, s1: NS_HH
+ vmov.f16 s0, r1: NS_HR
+ vmov.f16 r0, s1: NS_RH
+ vcvt.f16 r0, s1: NS_RH
+ vcvt.f16.s32 s2, s2, #29: NS_HFI
+ vcvt.f16.s32 s2, s2: NS_HF
+ */
+ case SE_H:
+ if (!(inst.operands[j].isreg
+ && inst.operands[j].isvec
+ && inst.operands[j].issingle
+ && !inst.operands[j].isquad
+ && ((inst.vectype.elems == 1
+ && inst.vectype.el[0].size == 16)
+ || (inst.vectype.elems > 1
+ && inst.vectype.el[j].size == 16)
+ || (inst.vectype.elems == 0
+ && inst.operands[j].vectype.type != NT_invtype
+ && inst.operands[j].vectype.size == 16))))
+ matches = 0;
+ break;
+
case SE_F:
if (!(inst.operands[j].isreg
&& inst.operands[j].isvec
&& inst.operands[j].issingle
- && !inst.operands[j].isquad))
+ && !inst.operands[j].isquad
+ && ((inst.vectype.elems == 1 && inst.vectype.el[0].size == 32)
+ || (inst.vectype.elems > 1 && inst.vectype.el[j].size == 32)
+ || (inst.vectype.elems == 0
+ && (inst.operands[j].vectype.size == 32
+ || inst.operands[j].vectype.type == NT_invtype)))))
matches = 0;
break;
*type = NT_untyped;
else if ((mask & (N_P8 | N_P16 | N_P64)) != 0)
*type = NT_poly;
- else if ((mask & (N_F16 | N_F32 | N_F64)) != 0)
+ else if ((mask & (N_F_ALL)) != 0)
*type = NT_float;
else
return FAIL;
k_type = g_type;
k_size = g_size;
key_allowed = thisarg & ~N_KEY;
+
+ /* Check architecture constraint on FP16 extension. */
+ if (k_size == 16
+ && k_type == NT_float
+ && ! ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_fp16))
+ {
+ inst.error = _(BAD_FP16);
+ return badtype;
+ }
}
}
else
else
match = g_size;
+ /* FP16 will use a single precision register. */
+ if (regwidth == 32 && match == 16)
+ {
+ if (ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_fp16))
+ match = regwidth;
+ else
+ {
+ inst.error = _(BAD_FP16);
+ return badtype;
+ }
+ }
+
if (regwidth != match)
{
first_error (_("operand size must match register width"));
{
int is_add = (inst.instruction & 0x0fffffff) == N_MNEM_vadd;
- if (rs == NS_FFF)
+ if (rs == NS_FFF || rs == NS_HHH)
{
if (is_add)
do_vfp_nsyn_opcode ("fadds");
else
do_vfp_nsyn_opcode ("fsubs");
+
+ /* ARMv8.2 fp16 instruction. */
+ if (rs == NS_HHH)
+ do_scalar_fp16_v82_encode ();
}
else
{
switch (args)
{
case 2:
- rs = neon_select_shape (NS_FF, NS_DD, NS_NULL);
- et = neon_check_type (2, rs,
- N_EQK | N_VFP, N_F32 | N_F64 | N_KEY | N_VFP);
+ rs = neon_select_shape (NS_HH, NS_FF, NS_DD, NS_NULL);
+ et = neon_check_type (2, rs, N_EQK | N_VFP, N_F_ALL | N_KEY | N_VFP);
break;
case 3:
- rs = neon_select_shape (NS_FFF, NS_DDD, NS_NULL);
- et = neon_check_type (3, rs,
- N_EQK | N_VFP, N_EQK | N_VFP, N_F32 | N_F64 | N_KEY | N_VFP);
+ rs = neon_select_shape (NS_HHH, NS_FFF, NS_DDD, NS_NULL);
+ et = neon_check_type (3, rs, N_EQK | N_VFP, N_EQK | N_VFP,
+ N_F_ALL | N_KEY | N_VFP);
break;
default:
{
int is_mla = (inst.instruction & 0x0fffffff) == N_MNEM_vmla;
- if (rs == NS_FFF)
+ if (rs == NS_FFF || rs == NS_HHH)
{
if (is_mla)
do_vfp_nsyn_opcode ("fmacs");
else
do_vfp_nsyn_opcode ("fnmacs");
+
+ /* ARMv8.2 fp16 instruction. */
+ if (rs == NS_HHH)
+ do_scalar_fp16_v82_encode ();
}
else
{
{
int is_fma = (inst.instruction & 0x0fffffff) == N_MNEM_vfma;
- if (rs == NS_FFF)
+ if (rs == NS_FFF || rs == NS_HHH)
{
if (is_fma)
do_vfp_nsyn_opcode ("ffmas");
else
do_vfp_nsyn_opcode ("ffnmas");
+
+ /* ARMv8.2 fp16 instruction. */
+ if (rs == NS_HHH)
+ do_scalar_fp16_v82_encode ();
}
else
{
static void
do_vfp_nsyn_mul (enum neon_shape rs)
{
- if (rs == NS_FFF)
- do_vfp_nsyn_opcode ("fmuls");
+ if (rs == NS_FFF || rs == NS_HHH)
+ {
+ do_vfp_nsyn_opcode ("fmuls");
+
+ /* ARMv8.2 fp16 instruction. */
+ if (rs == NS_HHH)
+ do_scalar_fp16_v82_encode ();
+ }
else
do_vfp_nsyn_opcode ("fmuld");
}
do_vfp_nsyn_abs_neg (enum neon_shape rs)
{
int is_neg = (inst.instruction & 0x80) != 0;
- neon_check_type (2, rs, N_EQK | N_VFP, N_F32 | N_F64 | N_VFP | N_KEY);
+ neon_check_type (2, rs, N_EQK | N_VFP, N_F_ALL | N_VFP | N_KEY);
- if (rs == NS_FF)
+ if (rs == NS_FF || rs == NS_HH)
{
if (is_neg)
do_vfp_nsyn_opcode ("fnegs");
else
do_vfp_nsyn_opcode ("fabss");
+
+ /* ARMv8.2 fp16 instruction. */
+ if (rs == NS_HH)
+ do_scalar_fp16_v82_encode ();
}
else
{
static void
do_vfp_nsyn_sqrt (void)
{
- enum neon_shape rs = neon_select_shape (NS_FF, NS_DD, NS_NULL);
- neon_check_type (2, rs, N_EQK | N_VFP, N_F32 | N_F64 | N_KEY | N_VFP);
+ enum neon_shape rs = neon_select_shape (NS_HH, NS_FF, NS_DD, NS_NULL);
+ neon_check_type (2, rs, N_EQK | N_VFP, N_F_ALL | N_KEY | N_VFP);
+
+ if (rs == NS_FF || rs == NS_HH)
+ {
+ do_vfp_nsyn_opcode ("fsqrts");
- if (rs == NS_FF)
- do_vfp_nsyn_opcode ("fsqrts");
+ /* ARMv8.2 fp16 instruction. */
+ if (rs == NS_HH)
+ do_scalar_fp16_v82_encode ();
+ }
else
do_vfp_nsyn_opcode ("fsqrtd");
}
static void
do_vfp_nsyn_div (void)
{
- enum neon_shape rs = neon_select_shape (NS_FFF, NS_DDD, NS_NULL);
+ enum neon_shape rs = neon_select_shape (NS_HHH, NS_FFF, NS_DDD, NS_NULL);
neon_check_type (3, rs, N_EQK | N_VFP, N_EQK | N_VFP,
- N_F32 | N_F64 | N_KEY | N_VFP);
+ N_F_ALL | N_KEY | N_VFP);
+
+ if (rs == NS_FFF || rs == NS_HHH)
+ {
+ do_vfp_nsyn_opcode ("fdivs");
- if (rs == NS_FFF)
- do_vfp_nsyn_opcode ("fdivs");
+ /* ARMv8.2 fp16 instruction. */
+ if (rs == NS_HHH)
+ do_scalar_fp16_v82_encode ();
+ }
else
do_vfp_nsyn_opcode ("fdivd");
}
static void
do_vfp_nsyn_nmul (void)
{
- enum neon_shape rs = neon_select_shape (NS_FFF, NS_DDD, NS_NULL);
+ enum neon_shape rs = neon_select_shape (NS_HHH, NS_FFF, NS_DDD, NS_NULL);
neon_check_type (3, rs, N_EQK | N_VFP, N_EQK | N_VFP,
- N_F32 | N_F64 | N_KEY | N_VFP);
+ N_F_ALL | N_KEY | N_VFP);
- if (rs == NS_FFF)
+ if (rs == NS_FFF || rs == NS_HHH)
{
NEON_ENCODE (SINGLE, inst);
do_vfp_sp_dyadic ();
+
+ /* ARMv8.2 fp16 instruction. */
+ if (rs == NS_HHH)
+ do_scalar_fp16_v82_encode ();
}
else
{
do_vfp_dp_rd_rn_rm ();
}
do_vfp_cond_or_thumb ();
+
}
static void
do_vfp_nsyn_cmp (void)
{
+ enum neon_shape rs;
if (inst.operands[1].isreg)
{
- enum neon_shape rs = neon_select_shape (NS_FF, NS_DD, NS_NULL);
- neon_check_type (2, rs, N_EQK | N_VFP, N_F32 | N_F64 | N_KEY | N_VFP);
+ rs = neon_select_shape (NS_HH, NS_FF, NS_DD, NS_NULL);
+ neon_check_type (2, rs, N_EQK | N_VFP, N_F_ALL | N_KEY | N_VFP);
- if (rs == NS_FF)
+ if (rs == NS_FF || rs == NS_HH)
{
NEON_ENCODE (SINGLE, inst);
do_vfp_sp_monadic ();
}
else
{
- enum neon_shape rs = neon_select_shape (NS_FI, NS_DI, NS_NULL);
- neon_check_type (2, rs, N_F32 | N_F64 | N_KEY | N_VFP, N_EQK);
+ rs = neon_select_shape (NS_HI, NS_FI, NS_DI, NS_NULL);
+ neon_check_type (2, rs, N_F_ALL | N_KEY | N_VFP, N_EQK);
switch (inst.instruction & 0x0fffffff)
{
abort ();
}
- if (rs == NS_FI)
+ if (rs == NS_FI || rs == NS_HI)
{
NEON_ENCODE (SINGLE, inst);
do_vfp_sp_compare_z ();
}
}
do_vfp_cond_or_thumb ();
+
+ /* ARMv8.2 fp16 instruction. */
+ if (rs == NS_HI || rs == NS_HH)
+ do_scalar_fp16_v82_encode ();
}
static void
{
enum neon_shape rs = neon_select_shape (NS_DDI, NS_QQI, NS_NULL);
struct neon_type_el et = neon_check_type (2, rs, N_EQK, N_KEY | N_I_ALL);
+ int imm = inst.operands[2].imm;
+
+ constraint (imm < 0 || (unsigned)imm >= et.size,
+ _("immediate out of range for shift"));
NEON_ENCODE (IMMED, inst);
- neon_imm_shift (FALSE, 0, neon_quad (rs), et, inst.operands[2].imm);
+ neon_imm_shift (FALSE, 0, neon_quad (rs), et, imm);
}
else
{
{
enum neon_shape rs = neon_select_shape (NS_DDI, NS_QQI, NS_NULL);
struct neon_type_el et = neon_check_type (2, rs, N_EQK, N_SU_ALL | N_KEY);
+ int imm = inst.operands[2].imm;
+ constraint (imm < 0 || (unsigned)imm >= et.size,
+ _("immediate out of range for shift"));
NEON_ENCODE (IMMED, inst);
- neon_imm_shift (TRUE, et.type == NT_unsigned, neon_quad (rs), et,
- inst.operands[2].imm);
+ neon_imm_shift (TRUE, et.type == NT_unsigned, neon_quad (rs), et, imm);
}
else
{
if (et.type == NT_float)
{
NEON_ENCODE (FLOAT, inst);
- neon_three_same (neon_quad (rs), 0, -1);
+ neon_three_same (neon_quad (rs), 0, et.size == 16 ? (int) et.size : -1);
}
else
{
static void
neon_exchange_operands (void)
{
- void *scratch = alloca (sizeof (inst.operands[0]));
if (inst.operands[1].present)
{
+ void *scratch = xmalloc (sizeof (inst.operands[0]));
+
/* Swap operands[1] and operands[2]. */
memcpy (scratch, &inst.operands[1], sizeof (inst.operands[0]));
inst.operands[1] = inst.operands[2];
memcpy (&inst.operands[2], scratch, sizeof (inst.operands[0]));
+ free (scratch);
}
else
{
static void
do_neon_cmp (void)
{
- neon_compare (N_SUF_32, N_S8 | N_S16 | N_S32 | N_F32, FALSE);
+ neon_compare (N_SUF_32, N_S_32 | N_F_16_32, FALSE);
}
static void
do_neon_cmp_inv (void)
{
- neon_compare (N_SUF_32, N_S8 | N_S16 | N_S32 | N_F32, TRUE);
+ neon_compare (N_SUF_32, N_S_32 | N_F_16_32, TRUE);
}
static void
{
enum neon_shape rs = neon_select_shape (NS_DDS, NS_QQS, NS_NULL);
struct neon_type_el et = neon_check_type (3, rs,
- N_EQK, N_EQK, N_I16 | N_I32 | N_F32 | N_KEY);
+ N_EQK, N_EQK, N_I16 | N_I32 | N_F_16_32 | N_KEY);
NEON_ENCODE (SCALAR, inst);
neon_mul_mac (et, neon_quad (rs));
}
if (inst.operands[2].isscalar)
do_neon_mac_maybe_scalar ();
else
- neon_dyadic_misc (NT_poly, N_I8 | N_I16 | N_I32 | N_F32 | N_P8, 0);
+ neon_dyadic_misc (NT_poly, N_I8 | N_I16 | N_I32 | N_F16 | N_F32 | N_P8, 0);
}
static void
}
}
+static void
+do_neon_qrdmlah (void)
+{
+ /* Check we're on the correct architecture. */
+ if (!mark_feature_used (&fpu_neon_ext_armv8))
+ inst.error =
+ _("instruction form not available on this architecture.");
+ else if (!mark_feature_used (&fpu_neon_ext_v8_1))
+ {
+ as_warn (_("this instruction implies use of ARMv8.1 AdvSIMD."));
+ record_feature_use (&fpu_neon_ext_v8_1);
+ }
+
+ if (inst.operands[2].isscalar)
+ {
+ enum neon_shape rs = neon_select_shape (NS_DDS, NS_QQS, NS_NULL);
+ struct neon_type_el et = neon_check_type (3, rs,
+ N_EQK, N_EQK, N_S16 | N_S32 | N_KEY);
+ NEON_ENCODE (SCALAR, inst);
+ neon_mul_mac (et, neon_quad (rs));
+ }
+ else
+ {
+ enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
+ struct neon_type_el et = neon_check_type (3, rs,
+ N_EQK, N_EQK, N_S16 | N_S32 | N_KEY);
+ NEON_ENCODE (INTEGER, inst);
+ /* The U bit (rounding) comes from bit mask. */
+ neon_three_same (neon_quad (rs), 0, et.size);
+ }
+}
+
static void
do_neon_fcmp_absolute (void)
{
enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
- neon_check_type (3, rs, N_EQK, N_EQK, N_F32 | N_KEY);
+ struct neon_type_el et = neon_check_type (3, rs, N_EQK, N_EQK,
+ N_F_16_32 | N_KEY);
/* Size field comes from bit mask. */
- neon_three_same (neon_quad (rs), 1, -1);
+ neon_three_same (neon_quad (rs), 1, et.size == 16 ? (int) et.size : -1);
}
static void
do_neon_step (void)
{
enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL);
- neon_check_type (3, rs, N_EQK, N_EQK, N_F32 | N_KEY);
- neon_three_same (neon_quad (rs), 0, -1);
+ struct neon_type_el et = neon_check_type (3, rs, N_EQK, N_EQK,
+ N_F_16_32 | N_KEY);
+ neon_three_same (neon_quad (rs), 0, et.size == 16 ? (int) et.size : -1);
}
static void
return;
rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
- et = neon_check_type (2, rs, N_EQK, N_S8 | N_S16 | N_S32 | N_F32 | N_KEY);
+ et = neon_check_type (2, rs, N_EQK, N_S_32 | N_F_16_32 | N_KEY);
inst.instruction |= LOW4 (inst.operands[0].reg) << 12;
inst.instruction |= HI1 (inst.operands[0].reg) << 22;
CVT_VAR (f32_s32, N_F32, N_S32, whole_reg, "fsltos", "fsitos", NULL) \
CVT_VAR (f32_u32, N_F32, N_U32, whole_reg, "fultos", "fuitos", NULL) \
/* Half-precision conversions. */ \
+ CVT_VAR (s16_f16, N_S16, N_F16 | N_KEY, whole_reg, NULL, NULL, NULL) \
+ CVT_VAR (u16_f16, N_U16, N_F16 | N_KEY, whole_reg, NULL, NULL, NULL) \
+ CVT_VAR (f16_s16, N_F16 | N_KEY, N_S16, whole_reg, NULL, NULL, NULL) \
+ CVT_VAR (f16_u16, N_F16 | N_KEY, N_U16, whole_reg, NULL, NULL, NULL) \
CVT_VAR (f32_f16, N_F32, N_F16, whole_reg, NULL, NULL, NULL) \
CVT_VAR (f16_f32, N_F16, N_F32, whole_reg, NULL, NULL, NULL) \
+ /* New VCVT instructions introduced by ARMv8.2 fp16 extension. \
+ Compared with single/double precision variants, only the co-processor \
+ field is different, so the encoding flow is reused here. */ \
+ CVT_VAR (f16_s32, N_F16 | N_KEY, N_S32, N_VFP, "fsltos", "fsitos", NULL) \
+ CVT_VAR (f16_u32, N_F16 | N_KEY, N_U32, N_VFP, "fultos", "fuitos", NULL) \
+ CVT_VAR (u32_f16, N_U32, N_F16 | N_KEY, N_VFP, "ftouls", "ftouis", "ftouizs")\
+ CVT_VAR (s32_f16, N_S32, N_F16 | N_KEY, N_VFP, "ftosls", "ftosis", "ftosizs")\
/* VFP instructions. */ \
CVT_VAR (f32_f64, N_F32, N_F64, N_VFP, NULL, "fcvtsd", NULL) \
CVT_VAR (f64_f32, N_F64, N_F32, N_VFP, NULL, "fcvtds", NULL) \
{
const char *opname = 0;
- if (rs == NS_DDI || rs == NS_QQI || rs == NS_FFI)
+ if (rs == NS_DDI || rs == NS_QQI || rs == NS_FFI
+ || rs == NS_FHI || rs == NS_HFI)
{
/* Conversions with immediate bitshift. */
const char *enc[] =
if (opname)
do_vfp_nsyn_opcode (opname);
+
+ /* ARMv8.2 fp16 VCVT instruction. */
+ if (flavour == neon_cvt_flavour_s32_f16
+ || flavour == neon_cvt_flavour_u32_f16
+ || flavour == neon_cvt_flavour_f16_u32
+ || flavour == neon_cvt_flavour_f16_s32)
+ do_scalar_fp16_v82_encode ();
}
static void
do_vfp_nsyn_cvtz (void)
{
- enum neon_shape rs = neon_select_shape (NS_FF, NS_FD, NS_NULL);
+ enum neon_shape rs = neon_select_shape (NS_FH, NS_FF, NS_FD, NS_NULL);
enum neon_cvt_flavour flavour = get_neon_cvt_flavour (rs);
const char *enc[] =
{
constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_armv8),
_(BAD_FPU));
+ if (flavour == neon_cvt_flavour_s32_f16
+ || flavour == neon_cvt_flavour_u32_f16)
+ constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_fp16),
+ _(BAD_FP16));
+
set_it_insn_type (OUTSIDE_IT_INSN);
switch (flavour)
sz = 0;
op = 1;
break;
+ case neon_cvt_flavour_s32_f16:
+ sz = 0;
+ op = 1;
+ break;
case neon_cvt_flavour_u32_f64:
sz = 1;
op = 0;
sz = 0;
op = 0;
break;
+ case neon_cvt_flavour_u32_f16:
+ sz = 0;
+ op = 0;
+ break;
default:
first_error (_("invalid instruction shape"));
return;
encode_arm_vfp_reg (inst.operands[0].reg, VFP_REG_Sd);
encode_arm_vfp_reg (inst.operands[1].reg, sz == 1 ? VFP_REG_Dm : VFP_REG_Sm);
inst.instruction |= sz << 8;
+
+ /* ARMv8.2 fp16 VCVT instruction. */
+ if (flavour == neon_cvt_flavour_s32_f16
+ ||flavour == neon_cvt_flavour_u32_f16)
+ do_scalar_fp16_v82_encode ();
inst.instruction |= op << 7;
inst.instruction |= rm << 16;
inst.instruction |= 0xf0000000;
do_neon_cvt_1 (enum neon_cvt_mode mode)
{
enum neon_shape rs = neon_select_shape (NS_DDI, NS_QQI, NS_FFI, NS_DD, NS_QQ,
- NS_FD, NS_DF, NS_FF, NS_QD, NS_DQ, NS_NULL);
+ NS_FD, NS_DF, NS_FF, NS_QD, NS_DQ,
+ NS_FH, NS_HF, NS_FHI, NS_HFI,
+ NS_NULL);
enum neon_cvt_flavour flavour = get_neon_cvt_flavour (rs);
+ if (flavour == neon_cvt_flavour_invalid)
+ return;
+
/* PR11109: Handle round-to-zero for VCVT conversions. */
if (mode == neon_cvt_mode_z
&& ARM_CPU_HAS_FEATURE (cpu_variant, fpu_arch_vfp_v2)
- && (flavour == neon_cvt_flavour_s32_f32
+ && (flavour == neon_cvt_flavour_s16_f16
+ || flavour == neon_cvt_flavour_u16_f16
+ || flavour == neon_cvt_flavour_s32_f32
|| flavour == neon_cvt_flavour_u32_f32
|| flavour == neon_cvt_flavour_s32_f64
|| flavour == neon_cvt_flavour_u32_f64)
return;
}
+ /* ARMv8.2 fp16 VCVT conversions. */
+ if (mode == neon_cvt_mode_z
+ && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_fp16)
+ && (flavour == neon_cvt_flavour_s32_f16
+ || flavour == neon_cvt_flavour_u32_f16)
+ && (rs == NS_FH))
+ {
+ do_vfp_nsyn_cvtz ();
+ do_scalar_fp16_v82_encode ();
+ return;
+ }
+
/* VFP rather than Neon conversions. */
if (flavour >= neon_cvt_flavour_first_fp)
{
case NS_QQI:
{
unsigned immbits;
- unsigned enctab[] = { 0x0000100, 0x1000100, 0x0, 0x1000000 };
+ unsigned enctab[] = {0x0000100, 0x1000100, 0x0, 0x1000000,
+ 0x0000100, 0x1000100, 0x0, 0x1000000};
if (vfp_or_neon_is_neon (NEON_CHECK_CC | NEON_CHECK_ARCH) == FAIL)
return;
integer conversion. */
if (inst.operands[2].present && inst.operands[2].imm == 0)
goto int_encode;
- immbits = 32 - inst.operands[2].imm;
NEON_ENCODE (IMMED, inst);
if (flavour != neon_cvt_flavour_invalid)
inst.instruction |= enctab[flavour];
inst.instruction |= HI1 (inst.operands[1].reg) << 5;
inst.instruction |= neon_quad (rs) << 6;
inst.instruction |= 1 << 21;
- inst.instruction |= immbits << 16;
+ if (flavour < neon_cvt_flavour_s16_f16)
+ {
+ inst.instruction |= 1 << 21;
+ immbits = 32 - inst.operands[2].imm;
+ inst.instruction |= immbits << 16;
+ }
+ else
+ {
+ inst.instruction |= 3 << 20;
+ immbits = 16 - inst.operands[2].imm;
+ inst.instruction |= immbits << 16;
+ inst.instruction &= ~(1 << 9);
+ }
neon_dp_fixup (&inst);
}
inst.instruction |= LOW4 (inst.operands[1].reg);
inst.instruction |= HI1 (inst.operands[1].reg) << 5;
inst.instruction |= neon_quad (rs) << 6;
- inst.instruction |= (flavour == neon_cvt_flavour_u32_f32) << 7;
+ inst.instruction |= (flavour == neon_cvt_flavour_u16_f16
+ || flavour == neon_cvt_flavour_u32_f32) << 7;
inst.instruction |= mode << 8;
+ if (flavour == neon_cvt_flavour_u16_f16
+ || flavour == neon_cvt_flavour_s16_f16)
+ /* Mask off the original size bits and reencode them. */
+ inst.instruction = ((inst.instruction & 0xfff3ffff) | (1 << 18));
+
if (thumb_mode)
inst.instruction |= 0xfc000000;
else
{
int_encode:
{
- unsigned enctab[] = { 0x100, 0x180, 0x0, 0x080 };
+ unsigned enctab[] = { 0x100, 0x180, 0x0, 0x080,
+ 0x100, 0x180, 0x0, 0x080};
NEON_ENCODE (INTEGER, inst);
inst.instruction |= LOW4 (inst.operands[1].reg);
inst.instruction |= HI1 (inst.operands[1].reg) << 5;
inst.instruction |= neon_quad (rs) << 6;
- inst.instruction |= 2 << 18;
+ if (flavour >= neon_cvt_flavour_s16_f16
+ && flavour <= neon_cvt_flavour_f16_u16)
+ /* Half precision. */
+ inst.instruction |= 1 << 18;
+ else
+ inst.instruction |= 2 << 18;
neon_dp_fixup (&inst);
}
static void
do_neon_cvttb_1 (bfd_boolean t)
{
- enum neon_shape rs = neon_select_shape (NS_FF, NS_FD, NS_DF, NS_NULL);
+ enum neon_shape rs = neon_select_shape (NS_HF, NS_HD, NS_FH, NS_FF, NS_FD,
+ NS_DF, NS_DH, NS_NULL);
if (rs == NS_NULL)
return;
do_neon_mov (void)
{
enum neon_shape rs = neon_select_shape (NS_RRFF, NS_FFRR, NS_DRR, NS_RRD,
- NS_QQ, NS_DD, NS_QI, NS_DI, NS_SR, NS_RS, NS_FF, NS_FI, NS_RF, NS_FR,
- NS_NULL);
+ NS_QQ, NS_DD, NS_QI, NS_DI, NS_SR,
+ NS_RS, NS_FF, NS_FI, NS_RF, NS_FR,
+ NS_HR, NS_RH, NS_HI, NS_NULL);
struct neon_type_el et;
const char *ldconst = 0;
do_vfp_nsyn_opcode ("fcpys");
break;
+ case NS_HI:
case NS_FI: /* case 10 (fconsts). */
ldconst = "fconsts";
encode_fconstd:
{
inst.operands[1].imm = neon_qfloat_bits (inst.operands[1].imm);
do_vfp_nsyn_opcode (ldconst);
+
+ /* ARMv8.2 fp16 vmov.f16 instruction. */
+ if (rs == NS_HI)
+ do_scalar_fp16_v82_encode ();
}
else
first_error (_("immediate out of range"));
break;
+ case NS_RH:
case NS_RF: /* case 12 (fmrs). */
do_vfp_nsyn_opcode ("fmrs");
+ /* ARMv8.2 fp16 vmov.f16 instruction. */
+ if (rs == NS_RH)
+ do_scalar_fp16_v82_encode ();
break;
+ case NS_HR:
case NS_FR: /* case 13 (fmsr). */
do_vfp_nsyn_opcode ("fmsr");
+ /* ARMv8.2 fp16 vmov.f16 instruction. */
+ if (rs == NS_HR)
+ do_scalar_fp16_v82_encode ();
break;
/* The encoders for the fmrrs and fmsrr instructions expect three operands
et.size - imm);
}
+static void
+do_neon_movhf (void)
+{
+ enum neon_shape rs = neon_select_shape (NS_HH, NS_NULL);
+ constraint (rs != NS_HH, _("invalid suffix"));
+
+ constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_armv8),
+ _(BAD_FPU));
+
+ do_vfp_sp_monadic ();
+
+ inst.is_neon = 1;
+ inst.instruction |= 0xf0000000;
+}
+
static void
do_neon_movl (void)
{
{
enum neon_shape rs = neon_select_shape (NS_DD, NS_QQ, NS_NULL);
struct neon_type_el et = neon_check_type (2, rs,
- N_EQK | N_FLT, N_F32 | N_U32 | N_KEY);
+ N_EQK | N_FLT, N_F_16_32 | N_U32 | N_KEY);
inst.instruction |= (et.type == NT_float) << 8;
neon_two_same (neon_quad (rs), 1, et.size);
}
if (thumb_mode)
inst.error = _("Use of PC here is UNPREDICTABLE");
else if (warn_on_deprecated)
- as_warn (_("Use of PC here is deprecated"));
+ as_tsktsk (_("Use of PC here is deprecated"));
}
if (inst.operands[0].issingle)
do_vfp_nsyn_opcode ("flds");
else
do_vfp_nsyn_opcode ("fsts");
+
+ /* ARMv8.2 vldr.16/vstr.16 instruction. */
+ if (inst.vectype.el[0].size == 16)
+ do_scalar_fp16_v82_encode ();
}
else
{
values, terminated with -1. */
static int
-neon_alignment_bit (int size, int align, int *do_align, ...)
+neon_alignment_bit (int size, int align, int *do_alignment, ...)
{
va_list ap;
int result = FAIL, thissize, thisalign;
if (!inst.operands[1].immisalign)
{
- *do_align = 0;
+ *do_alignment = 0;
return SUCCESS;
}
- va_start (ap, do_align);
+ va_start (ap, do_alignment);
do
{
va_end (ap);
if (result == SUCCESS)
- *do_align = 1;
+ *do_alignment = 1;
else
first_error (_("unsupported alignment for instruction"));
do_neon_ld_st_lane (void)
{
struct neon_type_el et = neon_check_type (1, NS_NULL, N_8 | N_16 | N_32);
- int align_good, do_align = 0;
+ int align_good, do_alignment = 0;
int logsize = neon_logbits (et.size);
int align = inst.operands[1].imm >> 8;
int n = (inst.instruction >> 8) & 3;
switch (n)
{
case 0: /* VLD1 / VST1. */
- align_good = neon_alignment_bit (et.size, align, &do_align, 16, 16,
+ align_good = neon_alignment_bit (et.size, align, &do_alignment, 16, 16,
32, 32, -1);
if (align_good == FAIL)
return;
- if (do_align)
+ if (do_alignment)
{
unsigned alignbits = 0;
switch (et.size)
break;
case 1: /* VLD2 / VST2. */
- align_good = neon_alignment_bit (et.size, align, &do_align, 8, 16, 16, 32,
- 32, 64, -1);
+ align_good = neon_alignment_bit (et.size, align, &do_alignment, 8, 16,
+ 16, 32, 32, 64, -1);
if (align_good == FAIL)
return;
- if (do_align)
+ if (do_alignment)
inst.instruction |= 1 << 4;
break;
break;
case 3: /* VLD4 / VST4. */
- align_good = neon_alignment_bit (et.size, align, &do_align, 8, 32,
+ align_good = neon_alignment_bit (et.size, align, &do_alignment, 8, 32,
16, 64, 32, 64, 32, 128, -1);
if (align_good == FAIL)
return;
- if (do_align)
+ if (do_alignment)
{
unsigned alignbits = 0;
switch (et.size)
do_neon_ld_dup (void)
{
struct neon_type_el et = neon_check_type (1, NS_NULL, N_8 | N_16 | N_32);
- int align_good, do_align = 0;
+ int align_good, do_alignment = 0;
if (et.type == NT_invtype)
return;
case 0: /* VLD1. */
gas_assert (NEON_REG_STRIDE (inst.operands[0].imm) != 2);
align_good = neon_alignment_bit (et.size, inst.operands[1].imm >> 8,
- &do_align, 16, 16, 32, 32, -1);
+ &do_alignment, 16, 16, 32, 32, -1);
if (align_good == FAIL)
return;
switch (NEON_REGLIST_LENGTH (inst.operands[0].imm))
case 1: /* VLD2. */
align_good = neon_alignment_bit (et.size, inst.operands[1].imm >> 8,
- &do_align, 8, 16, 16, 32, 32, 64, -1);
+ &do_alignment, 8, 16, 16, 32, 32, 64,
+ -1);
if (align_good == FAIL)
return;
constraint (NEON_REGLIST_LENGTH (inst.operands[0].imm) != 2,
case 3: /* VLD4. */
{
int align = inst.operands[1].imm >> 8;
- align_good = neon_alignment_bit (et.size, align, &do_align, 8, 32,
+ align_good = neon_alignment_bit (et.size, align, &do_alignment, 8, 32,
16, 64, 32, 64, 32, 128, -1);
if (align_good == FAIL)
return;
default: ;
}
- inst.instruction |= do_align << 4;
+ inst.instruction |= do_alignment << 4;
}
/* Disambiguate VLD<n> and VST<n> instructions, and fill in common bits (those
NEON_ENCODE (FPV8, inst);
- if (rs == NS_FFF)
- do_vfp_sp_dyadic ();
+ if (rs == NS_FFF || rs == NS_HHH)
+ {
+ do_vfp_sp_dyadic ();
+
+ /* ARMv8.2 fp16 instruction. */
+ if (rs == NS_HHH)
+ do_scalar_fp16_v82_encode ();
+ }
else
do_vfp_dp_rd_rn_rm ();
if (vfp_or_neon_is_neon (NEON_CHECK_CC | NEON_CHECK_ARCH8) == FAIL)
return;
- neon_dyadic_misc (NT_untyped, N_F32, 0);
+ neon_dyadic_misc (NT_untyped, N_F_16_32, 0);
}
static void
do_vrint_1 (enum neon_cvt_mode mode)
{
- enum neon_shape rs = neon_select_shape (NS_FF, NS_DD, NS_QQ, NS_NULL);
+ enum neon_shape rs = neon_select_shape (NS_HH, NS_FF, NS_DD, NS_QQ, NS_NULL);
struct neon_type_el et;
if (rs == NS_NULL)
constraint (!ARM_CPU_HAS_FEATURE (cpu_variant, fpu_vfp_ext_armv8),
_(BAD_FPU));
- et = neon_check_type (2, rs, N_EQK | N_VFP, N_F32 | N_F64 | N_KEY | N_VFP);
+ et = neon_check_type (2, rs, N_EQK | N_VFP, N_F_ALL | N_KEY
+ | N_VFP);
if (et.type != NT_invtype)
{
/* VFP encodings. */
set_it_insn_type (OUTSIDE_IT_INSN);
NEON_ENCODE (FPV8, inst);
- if (rs == NS_FF)
+ if (rs == NS_FF || rs == NS_HH)
do_vfp_sp_monadic ();
else
do_vfp_dp_rd_rm ();
inst.instruction |= (rs == NS_DD) << 8;
do_vfp_cond_or_thumb ();
+
+ /* ARMv8.2 fp16 vrint instruction. */
+ if (rs == NS_HH)
+ do_scalar_fp16_v82_encode ();
}
else
{
/* Neon encodings (or something broken...). */
inst.error = NULL;
- et = neon_check_type (2, rs, N_EQK, N_F32 | N_KEY);
+ et = neon_check_type (2, rs, N_EQK, N_F_16_32 | N_KEY);
if (et.type == NT_invtype)
return;
inst.instruction |= LOW4 (inst.operands[1].reg);
inst.instruction |= HI1 (inst.operands[1].reg) << 5;
inst.instruction |= neon_quad (rs) << 6;
+ /* Mask off the original size bits and reencode them. */
+ inst.instruction = ((inst.instruction & 0xfff3ffff)
+ | neon_logbits (et.size) << 18);
+
switch (mode)
{
case neon_cvt_mode_z: inst.instruction |= 3 << 7; break;
}
if (warn_on_deprecated && unified_syntax)
- as_warn (_("conditional infixes are deprecated in unified syntax"));
+ as_tsktsk (_("conditional infixes are deprecated in unified syntax"));
affix = base + (opcode->tag - OT_odd_infix_0);
cond = (const struct asm_cond *) hash_find_n (arm_cond_hsh, affix, 2);
gas_assert (cond);
if (warn_on_deprecated && unified_syntax
&& (opcode->tag == OT_cinfix3
|| opcode->tag == OT_cinfix3_deprecated))
- as_warn (_("conditional infixes are deprecated in unified syntax"));
+ as_tsktsk (_("conditional infixes are deprecated in unified syntax"));
inst.cond = cond->value;
return opcode;
else
{
if ((implicit_it_mode & IMPLICIT_IT_MODE_THUMB)
- && ARM_CPU_HAS_FEATURE (cpu_variant, arm_arch_t2))
+ && ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2))
{
/* Automatically generate the IT instruction. */
new_automatic_it_block (inst.cond);
{
if (inst.instruction >= 0x10000)
{
- as_warn (_("IT blocks containing 32-bit Thumb instructions are "
+ as_tsktsk (_("IT blocks containing 32-bit Thumb instructions are "
"deprecated in ARMv8"));
now_it.warn_deprecated = TRUE;
}
{
if ((inst.instruction & p->mask) == p->pattern)
{
- as_warn (_("IT blocks containing 16-bit Thumb instructions "
+ as_tsktsk (_("IT blocks containing 16-bit Thumb instructions "
"of the following class are deprecated in ARMv8: "
"%s"), p->description);
now_it.warn_deprecated = TRUE;
if (now_it.block_length > 1)
{
- as_warn (_("IT blocks containing more than one conditional "
+ as_tsktsk (_("IT blocks containing more than one conditional "
"instruction are deprecated in ARMv8"));
now_it.warn_deprecated = TRUE;
}
return now_it.state != OUTSIDE_IT_BLOCK;
}
+/* Whether OPCODE only has T32 encoding. Since this function is only used by
+ t32_insn_ok, OPCODE enabled by v6t2 extension bit do not need to be listed
+ here, hence the "known" in the function name. */
+
+static bfd_boolean
+known_t32_only_insn (const struct asm_opcode *opcode)
+{
+ /* Original Thumb-1 wide instruction. */
+ if (opcode->tencode == do_t_blx
+ || opcode->tencode == do_t_branch23
+ || ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_msr)
+ || ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_barrier))
+ return TRUE;
+
+ /* Wide-only instruction added to ARMv8-M. */
+ if (ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_v8m)
+ || ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_atomics)
+ || ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_v6t2_v8m)
+ || ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_div))
+ return TRUE;
+
+ return FALSE;
+}
+
+/* Whether wide instruction variant can be used if available for a valid OPCODE
+ in ARCH. */
+
+static bfd_boolean
+t32_insn_ok (arm_feature_set arch, const struct asm_opcode *opcode)
+{
+ if (known_t32_only_insn (opcode))
+ return TRUE;
+
+ /* Instruction with narrow and wide encoding added to ARMv8-M. Availability
+ of variant T3 of B.W is checked in do_t_branch. */
+ if (ARM_CPU_HAS_FEATURE (arch, arm_ext_v8m)
+ && opcode->tencode == do_t_branch)
+ return TRUE;
+
+ /* Wide instruction variants of all instructions with narrow *and* wide
+ variants become available with ARMv6t2. Other opcodes are either
+ narrow-only or wide-only and are thus available if OPCODE is valid. */
+ if (ARM_CPU_HAS_FEATURE (arch, arm_ext_v6t2))
+ return TRUE;
+
+ /* OPCODE with narrow only instruction variant or wide variant not
+ available. */
+ return FALSE;
+}
+
void
md_assemble (char *str)
{
}
if (warn_on_deprecated && opcode->tag == OT_cinfix3_deprecated)
- as_warn (_("s suffix on comparison instruction is deprecated"));
+ as_tsktsk (_("s suffix on comparison instruction is deprecated"));
/* The value which unconditional instructions should have in place of the
condition field. */
|| (thumb_mode == 1
&& !ARM_CPU_HAS_FEATURE (variant, *opcode->tvariant)))
{
- as_bad (_("selected processor does not support Thumb mode `%s'"), str);
+ as_bad (_("selected processor does not support `%s' in Thumb mode"), str);
return;
}
if (inst.cond != COND_ALWAYS && !unified_syntax
return;
}
- if (!ARM_CPU_HAS_FEATURE (variant, arm_ext_v6t2))
+ /* Two things are addressed here:
+ 1) Implicit require narrow instructions on Thumb-1.
+ This avoids relaxation accidentally introducing Thumb-2
+ instructions.
+ 2) Reject wide instructions in non Thumb-2 cores.
+
+ Only instructions with narrow and wide variants need to be handled
+ but selecting all non wide-only instructions is easier. */
+ if (!ARM_CPU_HAS_FEATURE (variant, arm_ext_v6t2)
+ && !t32_insn_ok (variant, opcode))
{
- if (opcode->tencode != do_t_blx && opcode->tencode != do_t_branch23
- && !(ARM_CPU_HAS_FEATURE(*opcode->tvariant, arm_ext_msr)
- || ARM_CPU_HAS_FEATURE(*opcode->tvariant, arm_ext_barrier)))
+ if (inst.size_req == 0)
+ inst.size_req = 2;
+ else if (inst.size_req == 4)
{
- /* Two things are addressed here.
- 1) Implicit require narrow instructions on Thumb-1.
- This avoids relaxation accidentally introducing Thumb-2
- instructions.
- 2) Reject wide instructions in non Thumb-2 cores. */
- if (inst.size_req == 0)
- inst.size_req = 2;
- else if (inst.size_req == 4)
- {
- as_bad (_("selected processor does not support Thumb-2 mode `%s'"), str);
- return;
- }
+ if (ARM_CPU_HAS_FEATURE (variant, arm_ext_v8m))
+ as_bad (_("selected processor does not support 32bit wide "
+ "variant of instruction `%s'"), str);
+ else
+ as_bad (_("selected processor does not support `%s' in "
+ "Thumb-2 mode"), str);
+ return;
}
}
ARM_MERGE_FEATURE_SETS (thumb_arch_used, thumb_arch_used,
*opcode->tvariant);
/* Many Thumb-2 instructions also have Thumb-1 variants, so explicitly
- set those bits when Thumb-2 32-bit instructions are seen. ie.
- anything other than bl/blx and v6-M instructions.
- This is overly pessimistic for relaxable instructions. */
- if (((inst.size == 4 && (inst.instruction & 0xf800e800) != 0xf000e800)
- || inst.relax)
- && !(ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_msr)
- || ARM_CPU_HAS_FEATURE (*opcode->tvariant, arm_ext_barrier)))
+ set those bits when Thumb-2 32-bit instructions are seen. The impact
+ of relaxable instructions will be considered later after we finish all
+ relaxation. */
+ if (ARM_FEATURE_CORE_EQUAL (cpu_variant, arm_arch_any))
+ variant = arm_arch_none;
+ else
+ variant = cpu_variant;
+ if (inst.size == 4 && !t32_insn_ok (variant, opcode))
ARM_MERGE_FEATURE_SETS (thumb_arch_used, thumb_arch_used,
arm_ext_v6t2);
&& !(opcode->avariant &&
ARM_CPU_HAS_FEATURE (cpu_variant, *opcode->avariant)))
{
- as_bad (_("selected processor does not support ARM mode `%s'"), str);
+ as_bad (_("selected processor does not support `%s' in ARM mode"), str);
return;
}
if (inst.size_req)
inst.instruction = opcode->avalue;
if (opcode->tag == OT_unconditionalF)
- inst.instruction |= 0xF << 28;
+ inst.instruction |= 0xFU << 28;
else
inst.instruction |= inst.cond << 28;
inst.size = INSN_SIZE;
};
#define UL_BARRIER(L,U,CODE,FEAT) \
- { L, CODE, ARM_FEATURE (FEAT, 0) }, \
- { U, CODE, ARM_FEATURE (FEAT, 0) }
+ { L, CODE, ARM_FEATURE_CORE_LOW (FEAT) }, \
+ { U, CODE, ARM_FEATURE_CORE_LOW (FEAT) }
static struct asm_barrier_opt barrier_opt_names[] =
{
CL("cmnp", 170f000, 2, (RR, SH), cmp),
tCE("mov", 1a00000, _mov, 2, (RR, SH), mov, t_mov_cmp),
- tC3("movs", 1b00000, _movs, 2, (RR, SH), mov, t_mov_cmp),
+ tC3("movs", 1b00000, _movs, 2, (RR, SHG), mov, t_mov_cmp),
tCE("mvn", 1e00000, _mvn, 2, (RR, SH), mov, t_mvn_tst),
tC3("mvns", 1f00000, _mvns, 2, (RR, SH), mov, t_mvn_tst),
TUF("setend", 1010000, b650, 1, (ENDI), setend, t_setend),
#undef THUMB_VARIANT
-#define THUMB_VARIANT & arm_ext_v6t2
+#define THUMB_VARIANT & arm_ext_v6t2_v8m
TCE("ldrex", 1900f9f, e8500f00, 2, (RRnpc_npcsp, ADDR), ldrex, t_ldrex),
TCE("strex", 1800f90, e8400000, 3, (RRnpc_npcsp, RRnpc_npcsp, ADDR),
strex, t_strex),
+#undef THUMB_VARIANT
+#define THUMB_VARIANT & arm_ext_v6t2
+
TUF("mcrr2", c400000, fc400000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
TUF("mrrc2", c500000, fc500000, 5, (RCP, I15b, RRnpc, RRnpc, RCN), co_reg2c, co_reg2c),
UF(srsed, 8400500, 2, (oRRw, I31w), srs),
TUF("srsdb", 9400500, e800c000, 2, (oRRw, I31w), srs, srs),
TUF("srsfd", 9400500, e800c000, 2, (oRRw, I31w), srs, srs),
+ TUF("cps", 1020000, f3af8100, 1, (I31b), imm0, t_cps),
/* ARM V6 not included in V7M (eg. integer SIMD). */
#undef THUMB_VARIANT
#define THUMB_VARIANT & arm_ext_v6_dsp
- TUF("cps", 1020000, f3af8100, 1, (I31b), imm0, t_cps),
TCE("pkhbt", 6800010, eac00000, 4, (RRnpc, RRnpc, RRnpc, oSHll), pkhbt, t_pkhbt),
TCE("pkhtb", 6800050, eac00020, 4, (RRnpc, RRnpc, RRnpc, oSHar), pkhtb, t_pkhtb),
TCE("qadd16", 6200f10, fa90f010, 3, (RRnpc, RRnpc, RRnpc), rd_rn_rm, t_simd),
RRnpcb), strexd, t_strexd),
#undef THUMB_VARIANT
-#define THUMB_VARIANT & arm_ext_v6t2
+#define THUMB_VARIANT & arm_ext_v6t2_v8m
TCE("ldrexb", 1d00f9f, e8d00f4f, 2, (RRnpc_npcsp,RRnpcb),
rd_rn, rd_rn),
TCE("ldrexh", 1f00f9f, e8d00f5f, 2, (RRnpc_npcsp, RRnpcb),
TCE("hvc", 1400070, f7e08000, 1, (EXPi), hvc, t_hvc),
TCE("eret", 160006e, f3de8f00, 0, (), noargs, noargs),
+#undef ARM_VARIANT
+#define ARM_VARIANT & arm_ext_pan
+#undef THUMB_VARIANT
+#define THUMB_VARIANT & arm_ext_pan
+
+ TUF("setpan", 1100000, b610, 1, (I7), setpan, t_setpan),
+
#undef ARM_VARIANT
#define ARM_VARIANT & arm_ext_v6t2
#undef THUMB_VARIANT
TCE("ubfx", 7e00050, f3c00000, 4, (RR, RR, I31, I32), bfx, t_bfx),
TCE("mls", 0600090, fb000010, 4, (RRnpc, RRnpc, RRnpc, RRnpc), mlas, t_mla),
- TCE("movw", 3000000, f2400000, 2, (RRnpc, HALF), mov16, t_mov16),
- TCE("movt", 3400000, f2c00000, 2, (RRnpc, HALF), mov16, t_mov16),
TCE("rbit", 6ff0f30, fa90f0a0, 2, (RR, RR), rd_rm, t_rbit),
TC3("ldrht", 03000b0, f8300e00, 2, (RRnpc_npcsp, ADDR), ldsttv4, t_ldstt),
TC3("ldrsbt", 03000d0, f9100e00, 2, (RRnpc_npcsp, ADDR), ldsttv4, t_ldstt),
TC3("strht", 02000b0, f8200e00, 2, (RRnpc_npcsp, ADDR), ldsttv4, t_ldstt),
+#undef THUMB_VARIANT
+#define THUMB_VARIANT & arm_ext_v6t2_v8m
+ TCE("movw", 3000000, f2400000, 2, (RRnpc, HALF), mov16, t_mov16),
+ TCE("movt", 3400000, f2c00000, 2, (RRnpc, HALF), mov16, t_mov16),
+
/* Thumb-only instructions. */
#undef ARM_VARIANT
#define ARM_VARIANT NULL
-mimplicit-it=[never | arm] modes. */
#undef ARM_VARIANT
#define ARM_VARIANT & arm_ext_v1
+#undef THUMB_VARIANT
+#define THUMB_VARIANT & arm_ext_v6t2
TUE("it", bf08, bf08, 1, (COND), it, t_it),
TUE("itt", bf0c, bf0c, 1, (COND), it, t_it),
/* AArchv8 instructions. */
#undef ARM_VARIANT
#define ARM_VARIANT & arm_ext_v8
+
+/* Instructions shared between armv8-a and armv8-m. */
#undef THUMB_VARIANT
-#define THUMB_VARIANT & arm_ext_v8
+#define THUMB_VARIANT & arm_ext_atomics
- tCE("sevl", 320f005, _sevl, 0, (), noargs, t_hint),
- TUE("hlt", 1000070, ba80, 1, (oIffffb), bkpt, t_hlt),
+ TCE("lda", 1900c9f, e8d00faf, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
+ TCE("ldab", 1d00c9f, e8d00f8f, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
+ TCE("ldah", 1f00c9f, e8d00f9f, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
+ TCE("stl", 180fc90, e8c00faf, 2, (RRnpc, RRnpcb), rm_rn, rd_rn),
+ TCE("stlb", 1c0fc90, e8c00f8f, 2, (RRnpc, RRnpcb), rm_rn, rd_rn),
+ TCE("stlh", 1e0fc90, e8c00f9f, 2, (RRnpc, RRnpcb), rm_rn, rd_rn),
TCE("ldaex", 1900e9f, e8d00fef, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
- TCE("ldaexd", 1b00e9f, e8d000ff, 3, (RRnpc, oRRnpc, RRnpcb),
- ldrexd, t_ldrexd),
TCE("ldaexb", 1d00e9f, e8d00fcf, 2, (RRnpc,RRnpcb), rd_rn, rd_rn),
TCE("ldaexh", 1f00e9f, e8d00fdf, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
TCE("stlex", 1800e90, e8c00fe0, 3, (RRnpc, RRnpc, RRnpcb),
stlex, t_stlex),
- TCE("stlexd", 1a00e90, e8c000f0, 4, (RRnpc, RRnpc, oRRnpc, RRnpcb),
- strexd, t_strexd),
TCE("stlexb", 1c00e90, e8c00fc0, 3, (RRnpc, RRnpc, RRnpcb),
stlex, t_stlex),
TCE("stlexh", 1e00e90, e8c00fd0, 3, (RRnpc, RRnpc, RRnpcb),
stlex, t_stlex),
- TCE("lda", 1900c9f, e8d00faf, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
- TCE("ldab", 1d00c9f, e8d00f8f, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
- TCE("ldah", 1f00c9f, e8d00f9f, 2, (RRnpc, RRnpcb), rd_rn, rd_rn),
- TCE("stl", 180fc90, e8c00faf, 2, (RRnpc, RRnpcb), rm_rn, rd_rn),
- TCE("stlb", 1c0fc90, e8c00f8f, 2, (RRnpc, RRnpcb), rm_rn, rd_rn),
- TCE("stlh", 1e0fc90, e8c00f9f, 2, (RRnpc, RRnpcb), rm_rn, rd_rn),
+#undef THUMB_VARIANT
+#define THUMB_VARIANT & arm_ext_v8
+ tCE("sevl", 320f005, _sevl, 0, (), noargs, t_hint),
+ TUE("hlt", 1000070, ba80, 1, (oIffffb), bkpt, t_hlt),
+ TCE("ldaexd", 1b00e9f, e8d000ff, 3, (RRnpc, oRRnpc, RRnpcb),
+ ldrexd, t_ldrexd),
+ TCE("stlexd", 1a00e90, e8c000f0, 4, (RRnpc, RRnpc, oRRnpc, RRnpcb),
+ strexd, t_strexd),
/* ARMv8 T32 only. */
#undef ARM_VARIANT
#define ARM_VARIANT NULL
TUEc("crc32ch",1200240, fad0f090, 3, (RR, oRR, RR), crc32ch),
TUEc("crc32cw",1400240, fad0f0a0, 3, (RR, oRR, RR), crc32cw),
+ /* ARMv8.2 RAS extension. */
+#undef ARM_VARIANT
+#define ARM_VARIANT & arm_ext_v8_2
+#undef THUMB_VARIANT
+#define THUMB_VARIANT & arm_ext_v8_2
+ TUE ("esb", 320f010, f3af8010, 0, (), noargs, noargs),
+
#undef ARM_VARIANT
#define ARM_VARIANT & fpu_fpa_ext_v1 /* Core FPA instruction set (V1). */
#undef THUMB_VARIANT
NCE(vmov, 0, 1, (VMOV), neon_mov),
NCE(vmovq, 0, 1, (VMOV), neon_mov),
+#undef ARM_VARIANT
+#define ARM_VARIANT & arm_ext_fp16
+#undef THUMB_VARIANT
+#define THUMB_VARIANT & arm_ext_fp16
+ /* New instructions added from v8.2, allowing the extraction and insertion of
+ the upper 16 bits of a 32-bit vector register. */
+ NCE (vmovx, eb00a40, 2, (RVS, RVS), neon_movhf),
+ NCE (vins, eb00ac0, 2, (RVS, RVS), neon_movhf),
+
#undef THUMB_VARIANT
#define THUMB_VARIANT & fpu_neon_ext_v1
#undef ARM_VARIANT
NUF(vbitq, 1200110, 3, (RNQ, RNQ, RNQ), neon_bitfield),
NUF(vbif, 1300110, 3, (RNDQ, RNDQ, RNDQ), neon_bitfield),
NUF(vbifq, 1300110, 3, (RNQ, RNQ, RNQ), neon_bitfield),
- /* Int and float variants, types S8 S16 S32 U8 U16 U32 F32. */
+ /* Int and float variants, types S8 S16 S32 U8 U16 U32 F16 F32. */
nUF(vabd, _vabd, 3, (RNDQ, oRNDQ, RNDQ), neon_dyadic_if_su),
nUF(vabdq, _vabd, 3, (RNQ, oRNQ, RNQ), neon_dyadic_if_su),
nUF(vmax, _vmax, 3, (RNDQ, oRNDQ, RNDQ), neon_dyadic_if_su),
NUF(vrecpsq, 0000f10, 3, (RNQ, oRNQ, RNQ), neon_step),
NUF(vrsqrts, 0200f10, 3, (RNDQ, oRNDQ, RNDQ), neon_step),
NUF(vrsqrtsq, 0200f10, 3, (RNQ, oRNQ, RNQ), neon_step),
+ /* ARM v8.1 extension. */
+ nUF (vqrdmlah, _vqrdmlah, 3, (RNDQ, oRNDQ, RNDQ_RNSC), neon_qrdmlah),
+ nUF (vqrdmlahq, _vqrdmlah, 3, (RNQ, oRNQ, RNDQ_RNSC), neon_qrdmlah),
+ nUF (vqrdmlsh, _vqrdmlsh, 3, (RNDQ, oRNDQ, RNDQ_RNSC), neon_qrdmlah),
+ nUF (vqrdmlshq, _vqrdmlsh, 3, (RNQ, oRNQ, RNDQ_RNSC), neon_qrdmlah),
/* Two address, int/float. Types S8 S16 S32 F32. */
NUF(vabsq, 1b10300, 2, (RNQ, RNQ), neon_abs_neg),
NUF(vpadalq, 1b00600, 2, (RNQ, RNQ), neon_pair_long),
NUF(vpaddl, 1b00200, 2, (RNDQ, RNDQ), neon_pair_long),
NUF(vpaddlq, 1b00200, 2, (RNQ, RNQ), neon_pair_long),
- /* Reciprocal estimates. Types U32 F32. */
+ /* Reciprocal estimates. Types U32 F16 F32. */
NUF(vrecpe, 1b30400, 2, (RNDQ, RNDQ), neon_recip_est),
NUF(vrecpeq, 1b30400, 2, (RNQ, RNQ), neon_recip_est),
NUF(vrsqrte, 1b30480, 2, (RNDQ, RNDQ), neon_recip_est),
cCE("cfmsub32",e100600, 4, (RMAX, RMFX, RMFX, RMFX), mav_quad),
cCE("cfmadda32", e200600, 4, (RMAX, RMAX, RMFX, RMFX), mav_quad),
cCE("cfmsuba32", e300600, 4, (RMAX, RMAX, RMFX, RMFX), mav_quad),
+
+#undef ARM_VARIANT
+#define ARM_VARIANT NULL
+#undef THUMB_VARIANT
+#define THUMB_VARIANT & arm_ext_v8m
+ TUE("tt", 0, e840f000, 2, (RRnpc, RRnpc), 0, tt),
+ TUE("ttt", 0, e840f040, 2, (RRnpc, RRnpc), 0, tt),
};
#undef ARM_VARIANT
#undef THUMB_VARIANT
fixp->fx_file = fragp->fr_file;
fixp->fx_line = fragp->fr_line;
fragp->fr_fix += fragp->fr_var;
+
+ /* Set whether we use thumb-2 ISA based on final relaxation results. */
+ if (thumb_mode && fragp->fr_var == 4 && no_cpu_selected ()
+ && !ARM_CPU_HAS_FEATURE (thumb_arch_used, arm_arch_t2))
+ ARM_MERGE_FEATURE_SETS (arm_arch_used, thumb_arch_used, arm_ext_v6t2);
}
/* Return the size of a relaxable immediate operand instruction.
int align;
align = bfd_get_section_alignment (stdoutput, segment);
- size = ((size + (1 << align) - 1) & ((valueT) -1 << align));
+ size = ((size + (1 << align) - 1) & (-((valueT) 1 << align)));
}
#endif
void
arm_handle_align (fragS * fragP)
{
- static char const arm_noop[2][2][4] =
+ static unsigned char const arm_noop[2][2][4] =
{
{ /* ARMv1 */
{0x00, 0x00, 0xa0, 0xe1}, /* LE */
{0xe3, 0x20, 0xf0, 0x00}, /* BE */
},
};
- static char const thumb_noop[2][2][2] =
+ static unsigned char const thumb_noop[2][2][2] =
{
{ /* Thumb-1 */
{0xc0, 0x46}, /* LE */
{0xbf, 0x00} /* BE */
}
};
- static char const wide_thumb_noop[2][4] =
+ static unsigned char const wide_thumb_noop[2][4] =
{ /* Wide Thumb-2 */
{0xaf, 0xf3, 0x00, 0x80}, /* LE */
{0xf3, 0xaf, 0x80, 0x00}, /* BE */
unsigned bytes, fix, noop_size;
char * p;
- const char * noop;
- const char *narrow_noop = NULL;
+ const unsigned char * noop;
+ const unsigned char *narrow_noop = NULL;
#ifdef OBJ_ELF
enum mstate state;
#endif
void
arm_init_frag (fragS * fragP, int max_chars)
{
+ int frag_thumb_mode;
+
/* If the current ARM vs THUMB mode has not already
been recorded into this frag then do so now. */
if ((fragP->tc_frag_data.thumb_mode & MODE_RECORDED) == 0)
- {
- fragP->tc_frag_data.thumb_mode = thumb_mode | MODE_RECORDED;
+ fragP->tc_frag_data.thumb_mode = thumb_mode | MODE_RECORDED;
- /* Record a mapping symbol for alignment frags. We will delete this
- later if the alignment ends up empty. */
- switch (fragP->fr_type)
- {
- case rs_align:
- case rs_align_test:
- case rs_fill:
- mapping_state_2 (MAP_DATA, max_chars);
- break;
- case rs_align_code:
- mapping_state_2 (thumb_mode ? MAP_THUMB : MAP_ARM, max_chars);
- break;
- default:
- break;
- }
+ frag_thumb_mode = fragP->tc_frag_data.thumb_mode ^ MODE_RECORDED;
+
+ /* Record a mapping symbol for alignment frags. We will delete this
+ later if the alignment ends up empty. */
+ switch (fragP->fr_type)
+ {
+ case rs_align:
+ case rs_align_test:
+ case rs_fill:
+ mapping_state_2 (MAP_DATA, max_chars);
+ break;
+ case rs_align_code:
+ mapping_state_2 (frag_thumb_mode ? MAP_THUMB : MAP_ARM, max_chars);
+ break;
+ default:
+ break;
}
}
{
unwind.opcode_alloc += ARM_OPCODE_CHUNK_SIZE;
if (unwind.opcodes)
- unwind.opcodes = (unsigned char *) xrealloc (unwind.opcodes,
- unwind.opcode_alloc);
+ unwind.opcodes = XRESIZEVEC (unsigned char, unwind.opcodes,
+ unwind.opcode_alloc);
else
- unwind.opcodes = (unsigned char *) xmalloc (unwind.opcode_alloc);
+ unwind.opcodes = XNEWVEC (unsigned char, unwind.opcode_alloc);
}
while (length > 0)
{
}
}
+static bfd_boolean flag_warn_syms = TRUE;
+
+bfd_boolean
+arm_tc_equal_in_insn (int c ATTRIBUTE_UNUSED, char * name)
+{
+ /* PR 18347 - Warn if the user attempts to create a symbol with the same
+ name as an ARM instruction. Whilst strictly speaking it is allowed, it
+ does mean that the resulting code might be very confusing to the reader.
+ Also this warning can be triggered if the user omits an operand before
+ an immediate address, eg:
+
+ LDR =foo
+
+ GAS treats this as an assignment of the value of the symbol foo to a
+ symbol LDR, and so (without this code) it will not issue any kind of
+ warning or error message.
+
+ Note - ARM instructions are case-insensitive but the strings in the hash
+ table are all stored in lower case, so we must first ensure that name is
+ lower case too. */
+ if (flag_warn_syms && arm_ops_hsh)
+ {
+ char * nbuf = strdup (name);
+ char * p;
+
+ for (p = nbuf; *p; p++)
+ *p = TOLOWER (*p);
+ if (hash_find (arm_ops_hsh, nbuf) != NULL)
+ {
+ static struct hash_control * already_warned = NULL;
+
+ if (already_warned == NULL)
+ already_warned = hash_new ();
+ /* Only warn about the symbol once. To keep the code
+ simple we let hash_insert do the lookup for us. */
+ if (hash_insert (already_warned, name, NULL) == NULL)
+ as_warn (_("[-mwarn-syms]: Assignment makes a symbol match an ARM instruction: %s"), name);
+ }
+ else
+ free (nbuf);
+ }
+
+ return FALSE;
+}
+
/* Under ELF we need to default _GLOBAL_OFFSET_TABLE.
Otherwise we have no need to default values of symbols. */
if ((value & ~0x3fffff) && ((value & ~0x3fffff) != ~0x3fffff))
{
- if (!(ARM_CPU_HAS_FEATURE (cpu_variant, arm_arch_t2)))
+ if (!(ARM_CPU_HAS_FEATURE (cpu_variant, arm_ext_v6t2)))
as_bad_where (fixP->fx_file, fixP->fx_line, BAD_RANGE);
else if ((value & ~0x1ffffff)
&& ((value & ~0x1ffffff) != ~0x1ffffff))
case BFD_RELOC_ARM_CP_OFF_IMM:
case BFD_RELOC_ARM_T32_CP_OFF_IMM:
- if (value < -1023 || value > 1023 || (value & 3))
+ if (fixP->fx_r_type == BFD_RELOC_ARM_CP_OFF_IMM)
+ newval = md_chars_to_number (buf, INSN_SIZE);
+ else
+ newval = get_thumb32_insn (buf);
+ if ((newval & 0x0f200f00) == 0x0d000900)
+ {
+ /* This is a fp16 vstr/vldr. The immediate offset in the mnemonic
+ has permitted values that are multiples of 2, in the range 0
+ to 510. */
+ if (value < -510 || value > 510 || (value & 1))
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("co-processor offset out of range"));
+ }
+ else if (value < -1023 || value > 1023 || (value & 3))
as_bad_where (fixP->fx_file, fixP->fx_line,
_("co-processor offset out of range"));
cp_off_common:
else
{
newval &= 0xff7fff00;
+ if ((newval & 0x0f200f00) == 0x0d000900)
+ {
+ /* This is a fp16 vstr/vldr.
+
+ It requires the immediate offset in the instruction is shifted
+ left by 1 to be a half-word offset.
+
+ Here, left shift by 1 first, and later right shift by 2
+ should get the right offset. */
+ value <<= 1;
+ }
newval |= (value >> 2) | (sign ? INDEX_UP : 0);
}
if (fixP->fx_r_type == BFD_RELOC_ARM_CP_OFF_IMM
if (rd == REG_SP)
{
- if (value & ~0x1fc)
+ if (value & ~0x1fc)
as_bad_where (fixP->fx_file, fixP->fx_line,
_("invalid immediate for stack address calculation"));
newval = subtract ? T_OPCODE_SUB_ST : T_OPCODE_ADD_ST;
}
else if (rs == REG_PC || rs == REG_SP)
{
+ /* PR gas/18541. If the addition is for a defined symbol
+ within range of an ADR instruction then accept it. */
+ if (subtract
+ && value == 4
+ && fixP->fx_addsy != NULL)
+ {
+ subtract = 0;
+
+ if (! S_IS_DEFINED (fixP->fx_addsy)
+ || S_GET_SEGMENT (fixP->fx_addsy) != seg
+ || S_IS_WEAK (fixP->fx_addsy))
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("address calculation needs a strongly defined nearby symbol"));
+ }
+ else
+ {
+ offsetT v = fixP->fx_where + fixP->fx_frag->fr_address;
+
+ /* Round up to the next 4-byte boundary. */
+ if (v & 3)
+ v = (v + 3) & ~ 3;
+ else
+ v += 4;
+ v = S_GET_VALUE (fixP->fx_addsy) - v;
+
+ if (v & ~0x3fc)
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("symbol too far away"));
+ }
+ else
+ {
+ fixP->fx_done = 1;
+ value = v;
+ }
+ }
+ }
+
if (subtract || value & ~0x3fc)
as_bad_where (fixP->fx_file, fixP->fx_line,
_("invalid immediate for address calculation (value = 0x%08lX)"),
- (unsigned long) value);
+ (unsigned long) (subtract ? - value : value));
newval = (rs == REG_PC ? T_OPCODE_ADD_PC : T_OPCODE_ADD_SP);
newval |= rd << 8;
newval |= value >> 2;
}
return;
+ case BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC:
+ case BFD_RELOC_ARM_THUMB_ALU_ABS_G1_NC:
+ case BFD_RELOC_ARM_THUMB_ALU_ABS_G2_NC:
+ case BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC:
+ gas_assert (!fixP->fx_done);
+ {
+ bfd_vma insn;
+ bfd_boolean is_mov;
+ bfd_vma encoded_addend = value;
+
+ /* Check that addend can be encoded in instruction. */
+ if (!seg->use_rela_p && (value < 0 || value > 255))
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("the offset 0x%08lX is not representable"),
+ (unsigned long) encoded_addend);
+
+ /* Extract the instruction. */
+ insn = md_chars_to_number (buf, THUMB_SIZE);
+ is_mov = (insn & 0xf800) == 0x2000;
+
+ /* Encode insn. */
+ if (is_mov)
+ {
+ if (!seg->use_rela_p)
+ insn |= encoded_addend;
+ }
+ else
+ {
+ int rd, rs;
+
+ /* Extract the instruction. */
+ /* Encoding is the following
+ 0x8000 SUB
+ 0x00F0 Rd
+ 0x000F Rs
+ */
+ /* The following conditions must be true :
+ - ADD
+ - Rd == Rs
+ - Rd <= 7
+ */
+ rd = (insn >> 4) & 0xf;
+ rs = insn & 0xf;
+ if ((insn & 0x8000) || (rd != rs) || rd > 7)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("Unable to process relocation for thumb opcode: %lx"),
+ (unsigned long) insn);
+
+ /* Encode as ADD immediate8 thumb 1 code. */
+ insn = 0x3000 | (rd << 8);
+
+ /* Place the encoded addend into the first 8 bits of the
+ instruction. */
+ if (!seg->use_rela_p)
+ insn |= encoded_addend;
+ }
+
+ /* Update the instruction. */
+ md_number_to_chars (buf, insn, THUMB_SIZE);
+ }
+ break;
+
case BFD_RELOC_ARM_ALU_PC_G0_NC:
case BFD_RELOC_ARM_ALU_PC_G0:
case BFD_RELOC_ARM_ALU_PC_G1_NC:
arelent * reloc;
bfd_reloc_code_real_type code;
- reloc = (arelent *) xmalloc (sizeof (arelent));
+ reloc = XNEW (arelent);
- reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
+ reloc->sym_ptr_ptr = XNEW (asymbol *);
*reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
case BFD_RELOC_ARM_SBREL32:
case BFD_RELOC_ARM_PREL31:
case BFD_RELOC_ARM_TARGET2:
- case BFD_RELOC_ARM_TLS_LE32:
case BFD_RELOC_ARM_TLS_LDO32:
case BFD_RELOC_ARM_PCREL_CALL:
case BFD_RELOC_ARM_PCREL_JUMP:
case BFD_RELOC_ARM_LDC_SB_G1:
case BFD_RELOC_ARM_LDC_SB_G2:
case BFD_RELOC_ARM_V4BX:
+ case BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC:
+ case BFD_RELOC_ARM_THUMB_ALU_ABS_G1_NC:
+ case BFD_RELOC_ARM_THUMB_ALU_ABS_G2_NC:
+ case BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC:
code = fixp->fx_r_type;
break;
case BFD_RELOC_ARM_TLS_GOTDESC:
case BFD_RELOC_ARM_TLS_GD32:
+ case BFD_RELOC_ARM_TLS_LE32:
case BFD_RELOC_ARM_TLS_IE32:
case BFD_RELOC_ARM_TLS_LDM32:
/* BFD will include the symbol's address in the addend.
default:
{
- char * type;
+ const char * type;
switch (fixp->fx_r_type)
{
|| fixP->fx_r_type == BFD_RELOC_ARM_THUMB_MOVT_PCREL)
return FALSE;
+ /* BFD_RELOC_ARM_THUMB_ALU_ABS_Gx_NC relocations have VERY limited
+ offsets, so keep these symbols. */
+ if (fixP->fx_r_type >= BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC
+ && fixP->fx_r_type <= BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC)
+ return FALSE;
+
return TRUE;
}
#endif /* defined (OBJ_ELF) || defined (OBJ_COFF) */
#ifdef OBJ_ELF
-
const char *
elf32_arm_target_format (void)
{
mcpu_cpu_opt = &cpu_default;
selected_cpu = cpu_default;
}
+ else if (no_cpu_selected ())
+ selected_cpu = cpu_default;
#else
if (mcpu_cpu_opt)
selected_cpu = *mcpu_cpu_opt;
-mthumb-interwork Code supports ARM/Thumb interworking
-m[no-]warn-deprecated Warn about deprecated features
+ -m[no-]warn-syms Warn when symbols match instructions
For now we will also provide support for:
{NULL, no_argument, NULL, 0}
};
+
size_t md_longopts_size = sizeof (md_longopts);
struct arm_option_table
{
- char *option; /* Option name to match. */
- char *help; /* Help information. */
+ const char *option; /* Option name to match. */
+ const char *help; /* Help information. */
int *var; /* Variable to change. */
int value; /* What to change it to. */
- char *deprecated; /* If non-null, print this message. */
+ const char *deprecated; /* If non-null, print this message. */
};
struct arm_option_table arm_opts[] =
{"mwarn-deprecated", NULL, &warn_on_deprecated, 1, NULL},
{"mno-warn-deprecated", N_("do not warn on use of deprecated feature"),
&warn_on_deprecated, 0, NULL},
+ {"mwarn-syms", N_("warn about symbols that match instruction names [default]"), (int *) (& flag_warn_syms), TRUE, NULL},
+ {"mno-warn-syms", N_("disable warnings about symobls that match instructions"), (int *) (& flag_warn_syms), FALSE, NULL},
{NULL, NULL, NULL, 0, NULL}
};
struct arm_legacy_option_table
{
- char *option; /* Option name to match. */
+ const char *option; /* Option name to match. */
const arm_feature_set **var; /* Variable to change. */
const arm_feature_set value; /* What to change it to. */
- char *deprecated; /* If non-null, print this message. */
+ const char *deprecated; /* If non-null, print this message. */
};
const struct arm_legacy_option_table arm_legacy_opts[] =
struct arm_cpu_option_table
{
- char *name;
+ const char *name;
size_t name_len;
const arm_feature_set value;
/* For some CPUs we assume an FPU unless the user explicitly sets
ARM_CPU_OPT ("mpcorenovfp", ARM_ARCH_V6K, FPU_NONE, "MPCore"),
ARM_CPU_OPT ("arm1156t2-s", ARM_ARCH_V6T2, FPU_NONE, NULL),
ARM_CPU_OPT ("arm1156t2f-s", ARM_ARCH_V6T2, FPU_ARCH_VFP_V2, NULL),
- ARM_CPU_OPT ("arm1176jz-s", ARM_ARCH_V6ZK, FPU_NONE, NULL),
- ARM_CPU_OPT ("arm1176jzf-s", ARM_ARCH_V6ZK, FPU_ARCH_VFP_V2, NULL),
+ ARM_CPU_OPT ("arm1176jz-s", ARM_ARCH_V6KZ, FPU_NONE, NULL),
+ ARM_CPU_OPT ("arm1176jzf-s", ARM_ARCH_V6KZ, FPU_ARCH_VFP_V2, NULL),
ARM_CPU_OPT ("cortex-a5", ARM_ARCH_V7A_MP_SEC,
FPU_NONE, "Cortex-A5"),
ARM_CPU_OPT ("cortex-a7", ARM_ARCH_V7VE, FPU_ARCH_NEON_VFP_V4,
"Cortex-A7"),
ARM_CPU_OPT ("cortex-a8", ARM_ARCH_V7A_SEC,
- ARM_FEATURE (0, FPU_VFP_V3
+ ARM_FEATURE_COPROC (FPU_VFP_V3
| FPU_NEON_EXT_V1),
"Cortex-A8"),
ARM_CPU_OPT ("cortex-a9", ARM_ARCH_V7A_MP_SEC,
- ARM_FEATURE (0, FPU_VFP_V3
+ ARM_FEATURE_COPROC (FPU_VFP_V3
| FPU_NEON_EXT_V1),
"Cortex-A9"),
ARM_CPU_OPT ("cortex-a12", ARM_ARCH_V7VE, FPU_ARCH_NEON_VFP_V4,
"Cortex-A15"),
ARM_CPU_OPT ("cortex-a17", ARM_ARCH_V7VE, FPU_ARCH_NEON_VFP_V4,
"Cortex-A17"),
+ ARM_CPU_OPT ("cortex-a32", ARM_ARCH_V8A, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+ "Cortex-A32"),
+ ARM_CPU_OPT ("cortex-a35", ARM_ARCH_V8A, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+ "Cortex-A35"),
ARM_CPU_OPT ("cortex-a53", ARM_ARCH_V8A, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
"Cortex-A53"),
ARM_CPU_OPT ("cortex-a57", ARM_ARCH_V8A, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
"Cortex-A57"),
+ ARM_CPU_OPT ("cortex-a72", ARM_ARCH_V8A, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+ "Cortex-A72"),
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"),
ARM_CPU_OPT ("cortex-r7", ARM_ARCH_V7R_IDIV,
FPU_ARCH_VFP_V3D16,
"Cortex-R7"),
+ ARM_CPU_OPT ("cortex-r8", ARM_ARCH_V7R_IDIV,
+ FPU_ARCH_VFP_V3D16,
+ "Cortex-R8"),
ARM_CPU_OPT ("cortex-m7", ARM_ARCH_V7EM, FPU_NONE, "Cortex-M7"),
ARM_CPU_OPT ("cortex-m4", ARM_ARCH_V7EM, FPU_NONE, "Cortex-M4"),
ARM_CPU_OPT ("cortex-m3", ARM_ARCH_V7M, FPU_NONE, "Cortex-M3"),
ARM_CPU_OPT ("cortex-m1", ARM_ARCH_V6SM, FPU_NONE, "Cortex-M1"),
ARM_CPU_OPT ("cortex-m0", ARM_ARCH_V6SM, FPU_NONE, "Cortex-M0"),
ARM_CPU_OPT ("cortex-m0plus", ARM_ARCH_V6SM, FPU_NONE, "Cortex-M0+"),
+ ARM_CPU_OPT ("exynos-m1", ARM_ARCH_V8A, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+ "Samsung " \
+ "Exynos M1"),
+ ARM_CPU_OPT ("qdf24xx", ARM_ARCH_V8A, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+ "Qualcomm "
+ "QDF24XX"),
+
/* ??? XSCALE is really an architecture. */
ARM_CPU_OPT ("xscale", ARM_ARCH_XSCALE, FPU_ARCH_VFP_V2, NULL),
/* ??? iwmmxt is not a processor. */
ARM_CPU_OPT ("iwmmxt2", ARM_ARCH_IWMMXT2,FPU_ARCH_VFP_V2, NULL),
ARM_CPU_OPT ("i80200", ARM_ARCH_XSCALE, FPU_ARCH_VFP_V2, NULL),
/* Maverick */
- ARM_CPU_OPT ("ep9312", ARM_FEATURE (ARM_AEXT_V4T, ARM_CEXT_MAVERICK),
+ ARM_CPU_OPT ("ep9312", ARM_FEATURE_LOW (ARM_AEXT_V4T, ARM_CEXT_MAVERICK),
FPU_ARCH_MAVERICK, "ARM920T"),
/* Marvell processors. */
- ARM_CPU_OPT ("marvell-pj4", ARM_FEATURE (ARM_AEXT_V7A | ARM_EXT_MP | ARM_EXT_SEC, 0),
+ ARM_CPU_OPT ("marvell-pj4", ARM_FEATURE_CORE (ARM_AEXT_V7A | ARM_EXT_MP
+ | ARM_EXT_SEC,
+ ARM_EXT2_V6T2_V8M),
FPU_ARCH_VFP_V3D16, NULL),
+ ARM_CPU_OPT ("marvell-whitney", ARM_FEATURE_CORE (ARM_AEXT_V7A | ARM_EXT_MP
+ | ARM_EXT_SEC,
+ ARM_EXT2_V6T2_V8M),
+ FPU_ARCH_NEON_VFP_V4, NULL),
+ /* APM X-Gene family. */
+ ARM_CPU_OPT ("xgene1", ARM_ARCH_V8A, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+ "APM X-Gene 1"),
+ ARM_CPU_OPT ("xgene2", ARM_ARCH_V8A, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
+ "APM X-Gene 2"),
{ NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE, NULL }
};
struct arm_arch_option_table
{
- char *name;
+ const char *name;
size_t name_len;
const arm_feature_set value;
const arm_feature_set default_fpu;
ARM_ARCH_OPT ("armv6j", ARM_ARCH_V6, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv6k", ARM_ARCH_V6K, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv6z", ARM_ARCH_V6Z, FPU_ARCH_VFP),
- ARM_ARCH_OPT ("armv6zk", ARM_ARCH_V6ZK, FPU_ARCH_VFP),
+ /* The official spelling of this variant is ARMv6KZ, the name "armv6zk" is
+ kept to preserve existing behaviour. */
+ ARM_ARCH_OPT ("armv6kz", ARM_ARCH_V6KZ, FPU_ARCH_VFP),
+ ARM_ARCH_OPT ("armv6zk", ARM_ARCH_V6KZ, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv6t2", ARM_ARCH_V6T2, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv6kt2", ARM_ARCH_V6KT2, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv6zt2", ARM_ARCH_V6ZT2, FPU_ARCH_VFP),
- ARM_ARCH_OPT ("armv6zkt2", ARM_ARCH_V6ZKT2, FPU_ARCH_VFP),
+ /* The official spelling of this variant is ARMv6KZ, the name "armv6zkt2" is
+ kept to preserve existing behaviour. */
+ ARM_ARCH_OPT ("armv6kzt2", ARM_ARCH_V6KZT2, FPU_ARCH_VFP),
+ ARM_ARCH_OPT ("armv6zkt2", ARM_ARCH_V6KZT2, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv6-m", ARM_ARCH_V6M, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv6s-m", ARM_ARCH_V6SM, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv7", ARM_ARCH_V7, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv7-r", ARM_ARCH_V7R, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv7-m", ARM_ARCH_V7M, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv7e-m", ARM_ARCH_V7EM, FPU_ARCH_VFP),
+ ARM_ARCH_OPT ("armv8-m.base", ARM_ARCH_V8M_BASE, FPU_ARCH_VFP),
+ ARM_ARCH_OPT ("armv8-m.main", ARM_ARCH_V8M_MAIN, FPU_ARCH_VFP),
ARM_ARCH_OPT ("armv8-a", ARM_ARCH_V8A, FPU_ARCH_VFP),
+ ARM_ARCH_OPT ("armv8.1-a", ARM_ARCH_V8_1A, FPU_ARCH_VFP),
+ ARM_ARCH_OPT ("armv8.2-a", ARM_ARCH_V8_2A, FPU_ARCH_VFP),
ARM_ARCH_OPT ("xscale", ARM_ARCH_XSCALE, FPU_ARCH_VFP),
ARM_ARCH_OPT ("iwmmxt", ARM_ARCH_IWMMXT, FPU_ARCH_VFP),
ARM_ARCH_OPT ("iwmmxt2", ARM_ARCH_IWMMXT2,FPU_ARCH_VFP),
/* ISA extensions in the co-processor and main instruction set space. */
struct arm_option_extension_value_table
{
- char *name;
+ const char *name;
size_t name_len;
- const arm_feature_set value;
+ const arm_feature_set merge_value;
+ const arm_feature_set clear_value;
const arm_feature_set allowed_archs;
};
/* The following table must be in alphabetical order with a NULL last entry.
*/
-#define ARM_EXT_OPT(N, V, AA) { N, sizeof (N) - 1, V, AA }
+#define ARM_EXT_OPT(N, M, C, AA) { N, sizeof (N) - 1, M, C, AA }
static const struct arm_option_extension_value_table arm_extensions[] =
{
- ARM_EXT_OPT ("crc", ARCH_CRC_ARMV8, ARM_FEATURE (ARM_EXT_V8, 0)),
+ ARM_EXT_OPT ("crc", ARCH_CRC_ARMV8, ARM_FEATURE_COPROC (CRC_EXT_ARMV8),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
ARM_EXT_OPT ("crypto", FPU_ARCH_CRYPTO_NEON_VFP_ARMV8,
- ARM_FEATURE (ARM_EXT_V8, 0)),
- ARM_EXT_OPT ("fp", FPU_ARCH_VFP_ARMV8,
- ARM_FEATURE (ARM_EXT_V8, 0)),
- ARM_EXT_OPT ("idiv", ARM_FEATURE (ARM_EXT_ADIV | ARM_EXT_DIV, 0),
- ARM_FEATURE (ARM_EXT_V7A | ARM_EXT_V7R, 0)),
- ARM_EXT_OPT ("iwmmxt",ARM_FEATURE (0, ARM_CEXT_IWMMXT), ARM_ANY),
- ARM_EXT_OPT ("iwmmxt2",
- ARM_FEATURE (0, ARM_CEXT_IWMMXT2), ARM_ANY),
- ARM_EXT_OPT ("maverick",
- ARM_FEATURE (0, ARM_CEXT_MAVERICK), ARM_ANY),
- ARM_EXT_OPT ("mp", ARM_FEATURE (ARM_EXT_MP, 0),
- ARM_FEATURE (ARM_EXT_V7A | ARM_EXT_V7R, 0)),
- ARM_EXT_OPT ("simd", FPU_ARCH_NEON_VFP_ARMV8,
- ARM_FEATURE (ARM_EXT_V8, 0)),
- ARM_EXT_OPT ("os", ARM_FEATURE (ARM_EXT_OS, 0),
- ARM_FEATURE (ARM_EXT_V6M, 0)),
- ARM_EXT_OPT ("sec", ARM_FEATURE (ARM_EXT_SEC, 0),
- ARM_FEATURE (ARM_EXT_V6K | ARM_EXT_V7A, 0)),
- ARM_EXT_OPT ("virt", ARM_FEATURE (ARM_EXT_VIRT | ARM_EXT_ADIV
- | ARM_EXT_DIV, 0),
- ARM_FEATURE (ARM_EXT_V7A, 0)),
- ARM_EXT_OPT ("xscale",ARM_FEATURE (0, ARM_CEXT_XSCALE), ARM_ANY),
- { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
+ ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
+ ARM_EXT_OPT ("fp", FPU_ARCH_VFP_ARMV8, ARM_FEATURE_COPROC (FPU_VFP_ARMV8),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
+ ARM_EXT_OPT ("fp16", ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
+ ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
+ ARM_ARCH_V8_2A),
+ ARM_EXT_OPT ("idiv", ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV | ARM_EXT_DIV),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV | ARM_EXT_DIV),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V7A | ARM_EXT_V7R)),
+ ARM_EXT_OPT ("iwmmxt",ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT),
+ ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT), ARM_ANY),
+ ARM_EXT_OPT ("iwmmxt2", ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT2),
+ ARM_FEATURE_COPROC (ARM_CEXT_IWMMXT2), ARM_ANY),
+ ARM_EXT_OPT ("maverick", ARM_FEATURE_COPROC (ARM_CEXT_MAVERICK),
+ ARM_FEATURE_COPROC (ARM_CEXT_MAVERICK), ARM_ANY),
+ ARM_EXT_OPT ("mp", ARM_FEATURE_CORE_LOW (ARM_EXT_MP),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_MP),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V7A | ARM_EXT_V7R)),
+ ARM_EXT_OPT ("os", ARM_FEATURE_CORE_LOW (ARM_EXT_OS),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_OS),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V6M)),
+ 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 ("rdma", FPU_ARCH_NEON_VFP_ARMV8_1,
+ ARM_FEATURE_COPROC (FPU_NEON_ARMV8 | FPU_NEON_EXT_RDMA),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
+ ARM_EXT_OPT ("sec", ARM_FEATURE_CORE_LOW (ARM_EXT_SEC),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_SEC),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V6K | ARM_EXT_V7A)),
+ ARM_EXT_OPT ("simd", FPU_ARCH_NEON_VFP_ARMV8,
+ ARM_FEATURE_COPROC (FPU_NEON_ARMV8),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
+ ARM_EXT_OPT ("virt", ARM_FEATURE_CORE_LOW (ARM_EXT_VIRT | ARM_EXT_ADIV
+ | ARM_EXT_DIV),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_VIRT),
+ ARM_FEATURE_CORE_LOW (ARM_EXT_V7A)),
+ ARM_EXT_OPT ("xscale",ARM_FEATURE_COPROC (ARM_CEXT_XSCALE),
+ ARM_FEATURE_COPROC (ARM_CEXT_XSCALE), ARM_ANY),
+ { NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE, ARM_ARCH_NONE }
};
#undef ARM_EXT_OPT
/* ISA floating-point and Advanced SIMD extensions. */
struct arm_option_fpu_value_table
{
- char *name;
+ const char *name;
const arm_feature_set value;
};
{"neon-fp-armv8", FPU_ARCH_NEON_VFP_ARMV8},
{"crypto-neon-fp-armv8",
FPU_ARCH_CRYPTO_NEON_VFP_ARMV8},
+ {"neon-fp-armv8.1", FPU_ARCH_NEON_VFP_ARMV8_1},
+ {"crypto-neon-fp-armv8.1",
+ FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1},
{NULL, ARM_ARCH_NONE}
};
struct arm_option_value_table
{
- char *name;
+ const char *name;
long value;
};
struct arm_long_option_table
{
- char * option; /* Substring to match. */
- char * help; /* Help information. */
- int (* func) (char * subopt); /* Function to decode sub-option. */
- char * deprecated; /* If non-null, print this message. */
+ const char * option; /* Substring to match. */
+ const char * help; /* Help information. */
+ int (* func) (const char * subopt); /* Function to decode sub-option. */
+ const char * deprecated; /* If non-null, print this message. */
};
static bfd_boolean
-arm_parse_extension (char *str, const arm_feature_set **opt_p)
+arm_parse_extension (const char *str, const arm_feature_set **opt_p)
{
- arm_feature_set *ext_set = (arm_feature_set *)
- xmalloc (sizeof (arm_feature_set));
+ arm_feature_set *ext_set = XNEW (arm_feature_set);
/* We insist on extensions being specified in alphabetical order, and with
extensions being added before being removed. We achieve this by having
while (str != NULL && *str != 0)
{
- char *ext;
+ const char *ext;
size_t len;
if (*str != '+')
/* Add or remove the extension. */
if (adding_value)
- ARM_MERGE_FEATURE_SETS (*ext_set, *ext_set, opt->value);
+ ARM_MERGE_FEATURE_SETS (*ext_set, *ext_set, opt->merge_value);
else
- ARM_CLEAR_FEATURE (*ext_set, *ext_set, opt->value);
+ ARM_CLEAR_FEATURE (*ext_set, *ext_set, opt->clear_value);
break;
}
}
static bfd_boolean
-arm_parse_cpu (char *str)
+arm_parse_cpu (const char *str)
{
const struct arm_cpu_option_table *opt;
- char *ext = strchr (str, '+');
+ const char *ext = strchr (str, '+');
size_t len;
if (ext != NULL)
mcpu_cpu_opt = &opt->value;
mcpu_fpu_opt = &opt->default_fpu;
if (opt->canonical_name)
- strcpy (selected_cpu_name, opt->canonical_name);
+ {
+ gas_assert (sizeof selected_cpu_name > strlen (opt->canonical_name));
+ strcpy (selected_cpu_name, opt->canonical_name);
+ }
else
{
size_t i;
+ if (len >= sizeof selected_cpu_name)
+ len = (sizeof selected_cpu_name) - 1;
+
for (i = 0; i < len; i++)
selected_cpu_name[i] = TOUPPER (opt->name[i]);
selected_cpu_name[i] = 0;
}
static bfd_boolean
-arm_parse_arch (char *str)
+arm_parse_arch (const char *str)
{
const struct arm_arch_option_table *opt;
- char *ext = strchr (str, '+');
+ const char *ext = strchr (str, '+');
size_t len;
if (ext != NULL)
}
static bfd_boolean
-arm_parse_fpu (char * str)
+arm_parse_fpu (const char * str)
{
const struct arm_option_fpu_value_table * opt;
}
static bfd_boolean
-arm_parse_float_abi (char * str)
+arm_parse_float_abi (const char * str)
{
const struct arm_option_value_table * opt;
#ifdef OBJ_ELF
static bfd_boolean
-arm_parse_eabi (char * str)
+arm_parse_eabi (const char * str)
{
const struct arm_option_value_table *opt;
#endif
static bfd_boolean
-arm_parse_it_mode (char * str)
+arm_parse_it_mode (const char * str)
{
bfd_boolean ret = TRUE;
}
static bfd_boolean
-arm_ccs_mode (char * unused ATTRIBUTE_UNUSED)
+arm_ccs_mode (const char * unused ATTRIBUTE_UNUSED)
{
codecomposer_syntax = TRUE;
arm_comment_chars[0] = ';';
};
int
-md_parse_option (int c, char * arg)
+md_parse_option (int c, const char * arg)
{
struct arm_option_table *opt;
const struct arm_legacy_option_table *fopt;
arm_feature_set flags;
} cpu_arch_ver_table;
-/* Mapping from CPU features to EABI CPU arch values. Table must be sorted
- least features first. */
+/* Mapping from CPU features to EABI CPU arch values. As a general rule, table
+ must be sorted least features first but some reordering is needed, eg. for
+ Thumb-2 instructions to be detected as coming from ARMv6T2. */
static const cpu_arch_ver_table cpu_arch_ver[] =
{
{1, ARM_ARCH_V4},
{10, ARM_ARCH_V7R},
{10, ARM_ARCH_V7M},
{14, ARM_ARCH_V8A},
+ {16, ARM_ARCH_V8M_BASE},
+ {17, ARM_ARCH_V8M_MAIN},
{0, ARM_ARCH_NONE}
};
}
/* Set the public EABI object attributes. */
-static void
+void
aeabi_set_public_attributes (void)
{
int arch;
int fp16_optional = 0;
arm_feature_set flags;
arm_feature_set tmp;
+ arm_feature_set arm_arch_v8m_base = ARM_ARCH_V8M_BASE;
const cpu_arch_ver_table *p;
/* Choose the architecture based on the capabilities of the requested cpu
actually used. Perhaps we should separate out the specified
and implicit cases. Avoid taking this path for -march=all by
checking for contradictory v7-A / v7-M features. */
- if (arch == 10
+ if (arch == TAG_CPU_ARCH_V7
&& !ARM_CPU_HAS_FEATURE (flags, arm_ext_v7a)
&& ARM_CPU_HAS_FEATURE (flags, arm_ext_v7m)
&& ARM_CPU_HAS_FEATURE (flags, arm_ext_v6_dsp))
- arch = 13;
+ arch = TAG_CPU_ARCH_V7E_M;
+
+ ARM_CLEAR_FEATURE (tmp, flags, arm_arch_v8m_base);
+ if (arch == TAG_CPU_ARCH_V8M_BASE && ARM_CPU_HAS_FEATURE (tmp, arm_arch_any))
+ arch = TAG_CPU_ARCH_V8M_MAIN;
+
+ /* In cpu_arch_ver ARMv8-A is before ARMv8-M for atomics to be detected as
+ coming from ARMv8-A. However, since ARMv8-A has more instructions than
+ ARMv8-M, -march=all must be detected as ARMv8-A. */
+ if (arch == TAG_CPU_ARCH_V8M_MAIN
+ && ARM_FEATURE_CORE_EQUAL (selected_cpu, arm_arch_any))
+ arch = TAG_CPU_ARCH_V8;
/* Tag_CPU_name. */
if (selected_cpu_name[0])
aeabi_set_attribute_int (Tag_CPU_arch, arch);
/* Tag_CPU_arch_profile. */
- if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v7a))
+ if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v7a)
+ || ARM_CPU_HAS_FEATURE (flags, arm_ext_v8)
+ || (ARM_CPU_HAS_FEATURE (flags, arm_ext_atomics)
+ && !ARM_CPU_HAS_FEATURE (flags, arm_ext_v8m)))
profile = 'A';
else if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v7r))
profile = 'R';
/* Tag_THUMB_ISA_use. */
if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v4t)
|| arch == 0)
- aeabi_set_attribute_int (Tag_THUMB_ISA_use,
- ARM_CPU_HAS_FEATURE (flags, arm_arch_t2) ? 2 : 1);
+ {
+ int thumb_isa_use;
+
+ if (!ARM_CPU_HAS_FEATURE (flags, arm_ext_v8)
+ && ARM_CPU_HAS_FEATURE (flags, arm_ext_v8m))
+ thumb_isa_use = 3;
+ else if (ARM_CPU_HAS_FEATURE (flags, arm_arch_t2))
+ thumb_isa_use = 2;
+ else
+ thumb_isa_use = 1;
+ aeabi_set_attribute_int (Tag_THUMB_ISA_use, thumb_isa_use);
+ }
/* Tag_VFP_arch. */
if (ARM_CPU_HAS_FEATURE (flags, fpu_vfp_ext_armv8xd))
aeabi_set_attribute_int (Tag_WMMX_arch, 1);
/* Tag_Advanced_SIMD_arch (formerly Tag_NEON_arch). */
- if (ARM_CPU_HAS_FEATURE (flags, fpu_neon_ext_armv8))
+ if (ARM_CPU_HAS_FEATURE (flags, fpu_neon_ext_v8_1))
+ aeabi_set_attribute_int (Tag_Advanced_SIMD_arch, 4);
+ else if (ARM_CPU_HAS_FEATURE (flags, fpu_neon_ext_armv8))
aeabi_set_attribute_int (Tag_Advanced_SIMD_arch, 3);
else if (ARM_CPU_HAS_FEATURE (flags, fpu_neon_ext_v1))
{
in ARM state, or when Thumb integer divide instructions have been used,
but we have no architecture profile set, nor have we any ARM instructions.
- For ARMv8 we set the tag to 0 as integer divide is implied by the base
- architecture.
+ For ARMv8-A and ARMv8-M we set the tag to 0 as integer divide is implied
+ by the base architecture.
For new architectures we will have to check these tests. */
- gas_assert (arch <= TAG_CPU_ARCH_V8);
- if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v8))
+ gas_assert (arch <= TAG_CPU_ARCH_V8
+ || (arch >= TAG_CPU_ARCH_V8M_BASE
+ && arch <= TAG_CPU_ARCH_V8M_MAIN));
+ if (ARM_CPU_HAS_FEATURE (flags, arm_ext_v8)
+ || ARM_CPU_HAS_FEATURE (flags, arm_ext_v8m))
aeabi_set_attribute_int (Tag_DIV_use, 0);
else if (ARM_CPU_HAS_FEATURE (flags, arm_ext_adiv)
|| (profile == '\0'
}
if (adding_value)
- ARM_MERGE_FEATURE_SETS (selected_cpu, selected_cpu, opt->value);
+ ARM_MERGE_FEATURE_SETS (selected_cpu, selected_cpu,
+ opt->merge_value);
else
- ARM_CLEAR_FEATURE (selected_cpu, selected_cpu, opt->value);
+ ARM_CLEAR_FEATURE (selected_cpu, selected_cpu, opt->clear_value);
mcpu_cpu_opt = &selected_cpu;
ARM_MERGE_FEATURE_SETS (cpu_variant, *mcpu_cpu_opt, *mfpu_opt);
}
-/* Apply sym value for relocations only in the case that
- they are for local symbols and you have the respective
- architectural feature for blx and simple switches. */
+/* Apply sym value for relocations only in the case that they are for
+ local symbols in the same segment as the fixup and you have the
+ respective architectural feature for blx and simple switches. */
int
-arm_apply_sym_value (struct fix * fixP)
+arm_apply_sym_value (struct fix * fixP, segT this_seg)
{
if (fixP->fx_addsy
&& ARM_CPU_HAS_FEATURE (selected_cpu, arm_ext_v5t)
+ /* PR 17444: If the local symbol is in a different section then a reloc
+ will always be generated for it, so applying the symbol value now
+ will result in a double offset being stored in the relocation. */
+ && (S_GET_SEGMENT (fixP->fx_addsy) == this_seg)
&& !S_FORCE_RELOC (fixP->fx_addsy, TRUE))
{
switch (fixP->fx_r_type)
case BFD_RELOC_ARM_PCREL_CALL:
case BFD_RELOC_THUMB_PCREL_BLX:
if (THUMB_IS_FUNC (fixP->fx_addsy))
- return 1;
+ return 1;
break;
default:
projects / deliverable / binutils-gdb.git / blobdiff