/* tc-aarch64.c -- Assemble for the AArch64 ISA
- Copyright (C) 2009-2014 Free Software Foundation, Inc.
+ Copyright (C) 2009-2016 Free Software Foundation, Inc.
Contributed by ARM Ltd.
This file is part of GAS.
/* Constants for known architecture features. */
static const aarch64_feature_set cpu_default = CPU_DEFAULT;
-static const aarch64_feature_set aarch64_arch_any = AARCH64_ANY;
-static const aarch64_feature_set aarch64_arch_none = AARCH64_ARCH_NONE;
-
#ifdef OBJ_ELF
/* Pre-defined "_GLOBAL_OFFSET_TABLE_" */
static symbolS *GOT_symbol;
return inst.parsing_error.error;
}
-static inline void
-set_error_message (const char *error)
-{
- inst.parsing_error.error = error;
-}
-
static inline enum aarch64_operand_error_kind
get_error_kind (void)
{
return inst.parsing_error.kind;
}
-static inline void
-set_error_kind (enum aarch64_operand_error_kind kind)
-{
- inst.parsing_error.kind = kind;
-}
-
static inline void
set_error (enum aarch64_operand_error_kind kind, const char *error)
{
bfd_reloc_code_real_type reloc;
};
-/* Structure for a hash table entry for a register. */
-typedef struct
-{
- const char *name;
- unsigned char number;
- unsigned char type;
- unsigned char builtin;
-} reg_entry;
-
/* Macros to define the register types and masks for the purpose
of parsing. */
#define MULTI_REG_TYPE(T,V) BASIC_REG_TYPE(T)
/* Register type enumerators. */
-typedef enum
+typedef enum aarch64_reg_type_
{
/* A list of REG_TYPE_*. */
AARCH64_REG_TYPES
#undef MULTI_REG_TYPE
#define MULTI_REG_TYPE(T,V) V,
+/* Structure for a hash table entry for a register. */
+typedef struct
+{
+ const char *name;
+ unsigned char number;
+ ENUM_BITFIELD (aarch64_reg_type_) type : 8;
+ unsigned char builtin;
+} reg_entry;
+
/* Values indexed by aarch64_reg_type to assist the type checking. */
static const unsigned reg_type_masks[] =
{
static struct hash_control *aarch64_barrier_opt_hsh;
static struct hash_control *aarch64_nzcv_hsh;
static struct hash_control *aarch64_pldop_hsh;
+static struct hash_control *aarch64_hint_opt_hsh;
/* Stuff needed to resolve the label ambiguity
As:
of LITTLENUMS emitted is stored in *SIZEP. An error message is
returned, or NULL on OK. */
-char *
+const char *
md_atof (int type, char *litP, int *sizeP)
{
return ieee_md_atof (type, litP, sizeP, target_big_endian);
otherwise return FALSE.
Accept only one occurrence of:
- 8b 16b 4h 8h 2s 4s 1d 2d
+ 8b 16b 2h 4h 8h 2s 4s 1d 2d
b h s d q */
static bfd_boolean
parse_neon_type_for_operand (struct neon_type_el *parsed_type, char **str)
first_error (_("missing element size"));
return FALSE;
}
- if (width != 0 && width * element_size != 64 && width * element_size != 128)
+ if (width != 0 && width * element_size != 64 && width * element_size != 128
+ && !(width == 2 && element_size == 16))
{
first_error_fmt (_
("invalid element size %d and vector size combination %c"),
return TRUE;
}
-/* Parse a single type, e.g. ".8b", leading period included.
- Only applicable to Vn registers.
-
- Return TRUE on success; otherwise return FALSE. */
-static bfd_boolean
-parse_neon_operand_type (struct neon_type_el *vectype, char **ccp)
-{
- char *str = *ccp;
-
- if (*str == '.')
- {
- if (! parse_neon_type_for_operand (vectype, &str))
- {
- first_error (_("vector type expected"));
- return FALSE;
- }
- }
- else
- return FALSE;
-
- *ccp = str;
-
- return TRUE;
-}
-
/* Parse a register of the type TYPE.
Return PARSE_FAIL if the string pointed by *CCP is not a valid register
}
type = reg->type;
- if (type == REG_TYPE_VN
- && parse_neon_operand_type (&parsetype, &str))
+ if (type == REG_TYPE_VN && *str == '.')
{
+ if (!parse_neon_type_for_operand (&parsetype, &str))
+ return PARSE_FAIL;
+
/* Register if of the form Vn.[bhsdq]. */
is_typed_vecreg = TRUE;
}
name = xstrdup (str);
- new = xmalloc (sizeof (reg_entry));
+ new = XNEW (reg_entry);
new->name = name;
new->number = number;
nlen = strlen (newname);
#endif
- nbuf = alloca (nlen + 1);
- memcpy (nbuf, newname, nlen);
- nbuf[nlen] = '\0';
+ nbuf = xmemdup0 (newname, nlen);
/* Create aliases under the new name as stated; an all-lowercase
version of the new name; and an all-uppercase version of the new
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;
}
{
enum mstate mapstate = seg_info (now_seg)->tc_segment_info_data.mapstate;
-#define TRANSITION(from, to) (mapstate == (from) && state == (to))
+ if (state == MAP_INSN)
+ /* AArch64 instructions require 4-byte alignment. When emitting
+ instructions into any section, record the appropriate section
+ alignment. */
+ record_alignment (now_seg, 2);
if (mapstate == state)
/* The mapping symbol has already been emitted.
There is nothing else to do. */
return;
- else if (TRANSITION (MAP_UNDEFINED, MAP_DATA))
- /* This case will be evaluated later in the next else. */
+
+#define TRANSITION(from, to) (mapstate == (from) && state == (to))
+ if (TRANSITION (MAP_UNDEFINED, MAP_DATA) && !subseg_text_p (now_seg))
+ /* Emit MAP_DATA within executable section in order. Otherwise, it will be
+ evaluated later in the next else. */
return;
else if (TRANSITION (MAP_UNDEFINED, MAP_INSN))
{
/* 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. */
+ 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);
}
+#undef TRANSITION
mapping_state_2 (state, 0);
-#undef TRANSITION
}
/* Same as mapping_state, but MAX_CHARS bytes have already been
if (pool == NULL)
{
/* Create a new pool. */
- pool = xmalloc (sizeof (*pool));
+ pool = XNEW (literal_pool);
if (!pool)
return NULL;
{
/* PR 16688: Bignums are held in a single global array. We must
copy and preserve that value now, before it is overwritten. */
- pool->literals[entry].bignum = xmalloc (CHARS_PER_LITTLENUM * exp->X_add_number);
+ pool->literals[entry].bignum = XNEWVEC (LITTLENUM_TYPE,
+ exp->X_add_number);
memcpy (pool->literals[entry].bignum, generic_bignum,
CHARS_PER_LITTLENUM * exp->X_add_number);
}
if (pool == NULL || pool->symbol == NULL || pool->next_free_entry == 0)
continue;
- mapping_state (MAP_DATA);
-
/* Align pool as you have word accesses.
Only make a frag if we have to. */
if (!need_pass_2)
frag_align (align, 0, 0);
+ mapping_state (MAP_DATA);
+
record_alignment (now_seg, align);
sprintf (sym_name, "$$lit_\002%x", pool->id);
return;
}
- if (!need_pass_2)
+ /* Sections are assumed to start aligned. In executable section, there is no
+ MAP_DATA symbol pending. So we only align the address during
+ MAP_DATA --> MAP_INSN transition.
+ For other sections, this is not guaranteed. */
+ enum mstate mapstate = seg_info (now_seg)->tc_segment_info_data.mapstate;
+ if (!need_pass_2 && subseg_text_p (now_seg) && mapstate == MAP_DATA)
frag_align_code (2, 0);
+
#ifdef OBJ_ELF
mapping_state (MAP_INSN);
#endif
}
#ifdef OBJ_ELF
+/* Emit BFD_RELOC_AARCH64_TLSDESC_ADD on the next ADD instruction. */
+
+static void
+s_tlsdescadd (int ignored ATTRIBUTE_UNUSED)
+{
+ expressionS exp;
+
+ expression (&exp);
+ frag_grow (4);
+ fix_new_aarch64 (frag_now, frag_more (0) - frag_now->fr_literal, 4, &exp, 0,
+ BFD_RELOC_AARCH64_TLSDESC_ADD);
+
+ demand_empty_rest_of_line ();
+}
+
/* Emit BFD_RELOC_AARCH64_TLSDESC_CALL on the next BLR instruction. */
static void
demand_empty_rest_of_line ();
}
+
+/* Emit BFD_RELOC_AARCH64_TLSDESC_LDR on the next LDR instruction. */
+
+static void
+s_tlsdescldr (int ignored ATTRIBUTE_UNUSED)
+{
+ expressionS exp;
+
+ expression (&exp);
+ frag_grow (4);
+ fix_new_aarch64 (frag_now, frag_more (0) - frag_now->fr_literal, 4, &exp, 0,
+ BFD_RELOC_AARCH64_TLSDESC_LDR);
+
+ demand_empty_rest_of_line ();
+}
#endif /* OBJ_ELF */
static void s_aarch64_arch (int);
static void s_aarch64_cpu (int);
+static void s_aarch64_arch_extension (int);
/* This table describes all the machine specific pseudo-ops the assembler
has to support. The fields are:
{"pool", s_ltorg, 0},
{"cpu", s_aarch64_cpu, 0},
{"arch", s_aarch64_arch, 0},
+ {"arch_extension", s_aarch64_arch_extension, 0},
{"inst", s_aarch64_inst, 0},
#ifdef OBJ_ELF
+ {"tlsdescadd", s_tlsdescadd, 0},
{"tlsdesccall", s_tlsdesccall, 0},
+ {"tlsdescldr", s_tlsdescldr, 0},
{"word", s_aarch64_elf_cons, 4},
{"long", s_aarch64_elf_cons, 4},
{"xword", s_aarch64_elf_cons, 8},
}
}
- if (aarch64_imm_float_p (fpword) || (fpword & 0x7fffffff) == 0)
+ if (aarch64_imm_float_p (fpword) || fpword == 0)
{
*immed = fpword;
*ccp = str;
{
const char *name;
int pc_rel;
+ bfd_reloc_code_real_type adr_type;
bfd_reloc_code_real_type adrp_type;
bfd_reloc_code_real_type movw_type;
bfd_reloc_code_real_type add_type;
bfd_reloc_code_real_type ldst_type;
+ bfd_reloc_code_real_type ld_literal_type;
};
static struct reloc_table_entry reloc_table[] = {
/* Low 12 bits of absolute address: ADD/i and LDR/STR */
{"lo12", 0,
+ 0, /* adr_type */
0,
0,
BFD_RELOC_AARCH64_ADD_LO12,
- BFD_RELOC_AARCH64_LDST_LO12},
+ BFD_RELOC_AARCH64_LDST_LO12,
+ 0},
/* Higher 21 bits of pc-relative page offset: ADRP */
{"pg_hi21", 1,
+ 0, /* adr_type */
BFD_RELOC_AARCH64_ADR_HI21_PCREL,
0,
0,
+ 0,
0},
/* Higher 21 bits of pc-relative page offset: ADRP, no check */
{"pg_hi21_nc", 1,
+ 0, /* adr_type */
BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL,
0,
0,
+ 0,
0},
/* Most significant bits 0-15 of unsigned address/value: MOVZ */
{"abs_g0", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_MOVW_G0,
0,
+ 0,
0},
/* Most significant bits 0-15 of signed address/value: MOVN/Z */
{"abs_g0_s", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_MOVW_G0_S,
0,
+ 0,
0},
/* Less significant bits 0-15 of address/value: MOVK, no check */
{"abs_g0_nc", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_MOVW_G0_NC,
0,
+ 0,
0},
/* Most significant bits 16-31 of unsigned address/value: MOVZ */
{"abs_g1", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_MOVW_G1,
0,
+ 0,
0},
/* Most significant bits 16-31 of signed address/value: MOVN/Z */
{"abs_g1_s", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_MOVW_G1_S,
0,
+ 0,
0},
/* Less significant bits 16-31 of address/value: MOVK, no check */
{"abs_g1_nc", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_MOVW_G1_NC,
0,
+ 0,
0},
/* Most significant bits 32-47 of unsigned address/value: MOVZ */
{"abs_g2", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_MOVW_G2,
0,
+ 0,
0},
/* Most significant bits 32-47 of signed address/value: MOVN/Z */
{"abs_g2_s", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_MOVW_G2_S,
0,
+ 0,
0},
/* Less significant bits 32-47 of address/value: MOVK, no check */
{"abs_g2_nc", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_MOVW_G2_NC,
0,
+ 0,
0},
/* Most significant bits 48-63 of signed/unsigned address/value: MOVZ */
{"abs_g3", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_MOVW_G3,
0,
+ 0,
0},
/* Get to the page containing GOT entry for a symbol. */
{"got", 1,
+ 0, /* adr_type */
BFD_RELOC_AARCH64_ADR_GOT_PAGE,
0,
0,
+ 0,
BFD_RELOC_AARCH64_GOT_LD_PREL19},
/* 12 bit offset into the page containing GOT entry for that symbol. */
{"got_lo12", 0,
+ 0, /* adr_type */
+ 0,
+ 0,
+ 0,
+ BFD_RELOC_AARCH64_LD_GOT_LO12_NC,
+ 0},
+
+ /* 0-15 bits of address/value: MOVk, no check. */
+ {"gotoff_g0_nc", 0,
+ 0, /* adr_type */
+ 0,
+ BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC,
+ 0,
+ 0,
+ 0},
+
+ /* Most significant bits 16-31 of address/value: MOVZ. */
+ {"gotoff_g1", 0,
+ 0, /* adr_type */
+ 0,
+ BFD_RELOC_AARCH64_MOVW_GOTOFF_G1,
+ 0,
+ 0,
+ 0},
+
+ /* 15 bit offset into the page containing GOT entry for that symbol. */
+ {"gotoff_lo15", 0,
+ 0, /* adr_type */
+ 0,
+ 0,
+ 0,
+ BFD_RELOC_AARCH64_LD64_GOTOFF_LO15,
+ 0},
+
+ /* Get to the page containing GOT TLS entry for a symbol */
+ {"gottprel_g0_nc", 0,
+ 0, /* adr_type */
+ 0,
+ BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC,
0,
0,
+ 0},
+
+ /* Get to the page containing GOT TLS entry for a symbol */
+ {"gottprel_g1", 0,
+ 0, /* adr_type */
+ 0,
+ BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1,
0,
- BFD_RELOC_AARCH64_LD_GOT_LO12_NC},
+ 0,
+ 0},
/* Get to the page containing GOT TLS entry for a symbol */
{"tlsgd", 0,
+ BFD_RELOC_AARCH64_TLSGD_ADR_PREL21, /* adr_type */
BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21,
0,
0,
+ 0,
0},
/* 12 bit offset into the page containing GOT TLS entry for a symbol */
{"tlsgd_lo12", 0,
+ 0, /* adr_type */
0,
0,
BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC,
+ 0,
+ 0},
+
+ /* Lower 16 bits address/value: MOVk. */
+ {"tlsgd_g0_nc", 0,
+ 0, /* adr_type */
+ 0,
+ BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC,
+ 0,
+ 0,
+ 0},
+
+ /* Most significant bits 16-31 of address/value: MOVZ. */
+ {"tlsgd_g1", 0,
+ 0, /* adr_type */
+ 0,
+ BFD_RELOC_AARCH64_TLSGD_MOVW_G1,
+ 0,
+ 0,
0},
/* Get to the page containing GOT TLS entry for a symbol */
{"tlsdesc", 0,
+ BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21, /* adr_type */
BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21,
0,
0,
- 0},
+ 0,
+ BFD_RELOC_AARCH64_TLSDESC_LD_PREL19},
/* 12 bit offset into the page containing GOT TLS entry for a symbol */
{"tlsdesc_lo12", 0,
+ 0, /* adr_type */
0,
0,
BFD_RELOC_AARCH64_TLSDESC_ADD_LO12_NC,
- BFD_RELOC_AARCH64_TLSDESC_LD_LO12_NC},
+ BFD_RELOC_AARCH64_TLSDESC_LD_LO12_NC,
+ 0},
+
+ /* Get to the page containing GOT TLS entry for a symbol.
+ The same as GD, we allocate two consecutive GOT slots
+ for module index and module offset, the only difference
+ with GD is the module offset should be intialized to
+ zero without any outstanding runtime relocation. */
+ {"tlsldm", 0,
+ BFD_RELOC_AARCH64_TLSLD_ADR_PREL21, /* adr_type */
+ BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21,
+ 0,
+ 0,
+ 0,
+ 0},
+
+ /* 12 bit offset into the page containing GOT TLS entry for a symbol */
+ {"tlsldm_lo12_nc", 0,
+ 0, /* adr_type */
+ 0,
+ 0,
+ BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC,
+ 0,
+ 0},
+
+ /* 12 bit offset into the module TLS base address. */
+ {"dtprel_lo12", 0,
+ 0, /* adr_type */
+ 0,
+ 0,
+ BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12,
+ BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12,
+ 0},
+
+ /* Same as dtprel_lo12, no overflow check. */
+ {"dtprel_lo12_nc", 0,
+ 0, /* adr_type */
+ 0,
+ 0,
+ BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC,
+ BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12_NC,
+ 0},
+
+ /* bits[23:12] of offset to the module TLS base address. */
+ {"dtprel_hi12", 0,
+ 0, /* adr_type */
+ 0,
+ 0,
+ BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12,
+ 0,
+ 0},
+
+ /* bits[15:0] of offset to the module TLS base address. */
+ {"dtprel_g0", 0,
+ 0, /* adr_type */
+ 0,
+ BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0,
+ 0,
+ 0,
+ 0},
+
+ /* No overflow check version of BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0. */
+ {"dtprel_g0_nc", 0,
+ 0, /* adr_type */
+ 0,
+ BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC,
+ 0,
+ 0,
+ 0},
+
+ /* bits[31:16] of offset to the module TLS base address. */
+ {"dtprel_g1", 0,
+ 0, /* adr_type */
+ 0,
+ BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1,
+ 0,
+ 0,
+ 0},
+
+ /* No overflow check version of BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1. */
+ {"dtprel_g1_nc", 0,
+ 0, /* adr_type */
+ 0,
+ BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC,
+ 0,
+ 0,
+ 0},
+
+ /* bits[47:32] of offset to the module TLS base address. */
+ {"dtprel_g2", 0,
+ 0, /* adr_type */
+ 0,
+ BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2,
+ 0,
+ 0,
+ 0},
+
+ /* Lower 16 bit offset into GOT entry for a symbol */
+ {"tlsdesc_off_g0_nc", 0,
+ 0, /* adr_type */
+ 0,
+ BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC,
+ 0,
+ 0,
+ 0},
+
+ /* Higher 16 bit offset into GOT entry for a symbol */
+ {"tlsdesc_off_g1", 0,
+ 0, /* adr_type */
+ 0,
+ BFD_RELOC_AARCH64_TLSDESC_OFF_G1,
+ 0,
+ 0,
+ 0},
/* Get to the page containing GOT TLS entry for a symbol */
{"gottprel", 0,
+ 0, /* adr_type */
BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21,
0,
0,
- 0},
+ 0,
+ BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19},
/* 12 bit offset into the page containing GOT TLS entry for a symbol */
{"gottprel_lo12", 0,
+ 0, /* adr_type */
0,
0,
0,
- BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_LO12_NC},
+ BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_LO12_NC,
+ 0},
/* Get tp offset for a symbol. */
{"tprel", 0,
+ 0, /* adr_type */
0,
0,
BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12,
+ 0,
0},
/* Get tp offset for a symbol. */
{"tprel_lo12", 0,
+ 0, /* adr_type */
0,
0,
BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12,
+ 0,
0},
/* Get tp offset for a symbol. */
{"tprel_hi12", 0,
+ 0, /* adr_type */
0,
0,
BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12,
+ 0,
0},
/* Get tp offset for a symbol. */
{"tprel_lo12_nc", 0,
+ 0, /* adr_type */
0,
0,
BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC,
+ 0,
0},
/* Most significant bits 32-47 of address/value: MOVZ. */
{"tprel_g2", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2,
0,
+ 0,
0},
/* Most significant bits 16-31 of address/value: MOVZ. */
{"tprel_g1", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1,
0,
+ 0,
0},
/* Most significant bits 16-31 of address/value: MOVZ, no check. */
{"tprel_g1_nc", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC,
0,
+ 0,
0},
/* Most significant bits 0-15 of address/value: MOVZ. */
{"tprel_g0", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0,
0,
+ 0,
0},
/* Most significant bits 0-15 of address/value: MOVZ, no check. */
{"tprel_g0_nc", 0,
+ 0, /* adr_type */
0,
BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC,
0,
+ 0,
+ 0},
+
+ /* 15bit offset from got entry to base address of GOT table. */
+ {"gotpage_lo15", 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15,
+ 0},
+
+ /* 14bit offset from got entry to base address of GOT table. */
+ {"gotpage_lo14", 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14,
0},
};
skip_past_char (&p, '#');
if (reloc && skip_past_char (&p, ':'))
{
+ bfd_reloc_code_real_type ty;
struct reloc_table_entry *entry;
/* Try to parse a relocation modifier. Anything else is
return FALSE;
}
- if (entry->ldst_type == 0)
+ switch (operand->type)
+ {
+ case AARCH64_OPND_ADDR_PCREL21:
+ /* adr */
+ ty = entry->adr_type;
+ break;
+
+ default:
+ ty = entry->ld_literal_type;
+ break;
+ }
+
+ if (ty == 0)
{
set_syntax_error
(_("this relocation modifier is not allowed on this "
}
/* #:<reloc_op>:<expr> */
- /* Record the load/store relocation type. */
- inst.reloc.type = entry->ldst_type;
+ /* Record the relocation type. */
+ inst.reloc.type = ty;
inst.reloc.pc_rel = entry->pc_rel;
}
else
static bfd_boolean
parse_half (char **str, int *internal_fixup_p)
{
- char *p, *saved;
- int dummy;
+ char *p = *str;
- p = *str;
skip_past_char (&p, '#');
gas_assert (internal_fixup_p);
else
*internal_fixup_p = 1;
- /* Avoid parsing a register as a general symbol. */
- saved = p;
- if (aarch64_reg_parse_32_64 (&p, 0, 0, &dummy, &dummy) != PARSE_FAIL)
- return FALSE;
- p = saved;
-
if (! my_get_expression (&inst.reloc.exp, &p, GE_NO_PREFIX, 1))
return FALSE;
return o->value;
}
+/* Parse an operand for a PSB barrier. Set *HINT_OPT to the hint-option record
+ return 0 if successful. Otherwise return PARSE_FAIL. */
+
+static int
+parse_barrier_psb (char **str,
+ const struct aarch64_name_value_pair ** hint_opt)
+{
+ char *p, *q;
+ const struct aarch64_name_value_pair *o;
+
+ p = q = *str;
+ while (ISALPHA (*q))
+ q++;
+
+ o = hash_find_n (aarch64_hint_opt_hsh, p, q - p);
+ if (!o)
+ {
+ set_fatal_syntax_error
+ ( _("unknown or missing option to PSB"));
+ return PARSE_FAIL;
+ }
+
+ if (o->value != 0x11)
+ {
+ /* PSB only accepts option name 'CSYNC'. */
+ set_syntax_error
+ (_("the specified option is not accepted for PSB"));
+ return PARSE_FAIL;
+ }
+
+ *str = q;
+ *hint_opt = o;
+ return 0;
+}
+
/* Parse a system register or a PSTATE field name for an MSR/MRS instruction.
Returns the encoding for the option, or PARSE_FAIL.
If IMPLE_DEFINED_P is non-zero, the function will also try to parse the
- implementation defined system register name S<op0>_<op1>_<Cn>_<Cm>_<op2>. */
+ implementation defined system register name S<op0>_<op1>_<Cn>_<Cm>_<op2>.
+
+ If PSTATEFIELD_P is non-zero, the function will parse the name as a PSTATE
+ field, otherwise as a system register.
+*/
static int
-parse_sys_reg (char **str, struct hash_control *sys_regs, int imple_defined_p)
+parse_sys_reg (char **str, struct hash_control *sys_regs,
+ int imple_defined_p, int pstatefield_p)
{
char *p, *q;
char buf[32];
return PARSE_FAIL;
else
{
- /* Parse S<op0>_<op1>_<Cn>_<Cm>_<op2>, the implementation defined
- registers. */
+ /* Parse S<op0>_<op1>_<Cn>_<Cm>_<op2>. */
unsigned int op0, op1, cn, cm, op2;
- if (sscanf (buf, "s%u_%u_c%u_c%u_%u", &op0, &op1, &cn, &cm, &op2) != 5)
+
+ if (sscanf (buf, "s%u_%u_c%u_c%u_%u", &op0, &op1, &cn, &cm, &op2)
+ != 5)
return PARSE_FAIL;
- /* The architecture specifies the encoding space for implementation
- defined registers as:
- op0 op1 CRn CRm op2
- 1x xxx 1x11 xxxx xxx
- For convenience GAS accepts a wider encoding space, as follows:
- op0 op1 CRn CRm op2
- 1x xxx xxxx xxxx xxx */
- if ((op0 != 2 && op0 != 3) || op1 > 7 || cn > 15 || cm > 15 || op2 > 7)
+ if (op0 > 3 || op1 > 7 || cn > 15 || cm > 15 || op2 > 7)
return PARSE_FAIL;
value = (op0 << 14) | (op1 << 11) | (cn << 7) | (cm << 3) | op2;
}
}
else
{
+ if (pstatefield_p && !aarch64_pstatefield_supported_p (cpu_variant, o))
+ as_bad (_("selected processor does not support PSTATE field "
+ "name '%s'"), buf);
+ if (!pstatefield_p && !aarch64_sys_reg_supported_p (cpu_variant, o))
+ as_bad (_("selected processor does not support system register "
+ "name '%s'"), buf);
if (aarch64_sys_reg_deprecated_p (o))
as_warn (_("system register name '%s' is deprecated and may be "
-"removed in a future release"), buf);
+ "removed in a future release"), buf);
value = o->value;
}
if (!o)
return NULL;
+ if (!aarch64_sys_ins_reg_supported_p (cpu_variant, o))
+ as_bad (_("selected processor does not support system register "
+ "name '%s'"), buf);
+
*str = q;
return o;
}
/* Get one empty record. */
if (free_opnd_error_record_nodes == NULL)
{
- record = xmalloc (sizeof (operand_error_record));
- if (record == NULL)
- abort ();
+ record = XNEW (operand_error_record);
}
else
{
for (i = 0; i < AARCH64_MAX_OPND_NUM; ++i)
{
- const size_t size = 128;
- char str[size];
+ char str[128];
/* We regard the opcode operand info more, however we also look into
the inst->operands to support the disassembling of the optional
break;
/* Generate the operand string in STR. */
- aarch64_print_operand (str, size, 0, opcode, opnds, i, NULL, NULL);
+ aarch64_print_operand (str, sizeof (str), 0, opcode, opnds, i, NULL, NULL);
/* Delimiter. */
if (str[0] != '\0')
static void
output_info (const char *format, ...)
{
- char *file;
+ const char *file;
unsigned int line;
va_list args;
- as_where (&file, &line);
+ file = as_where (&line);
if (file)
{
if (line != 0)
static void
output_operand_error_record (const operand_error_record *record, char *str)
{
- int idx = record->detail.index;
+ const aarch64_operand_error *detail = &record->detail;
+ int idx = detail->index;
const aarch64_opcode *opcode = record->opcode;
- enum aarch64_opnd opd_code = (idx != -1 ? opcode->operands[idx]
+ enum aarch64_opnd opd_code = (idx >= 0 ? opcode->operands[idx]
: AARCH64_OPND_NIL);
- const aarch64_operand_error *detail = &record->detail;
switch (detail->kind)
{
case AARCH64_OPDE_RECOVERABLE:
case AARCH64_OPDE_FATAL_SYNTAX_ERROR:
case AARCH64_OPDE_OTHER_ERROR:
- gas_assert (idx >= 0);
/* Use the prepared error message if there is, otherwise use the
operand description string to describe the error. */
if (detail->error != NULL)
{
- if (detail->index == -1)
+ if (idx < 0)
as_bad (_("%s -- `%s'"), detail->error, str);
else
as_bad (_("%s at operand %d -- `%s'"),
- detail->error, detail->index + 1, str);
+ detail->error, idx + 1, str);
}
else
- as_bad (_("operand %d should be %s -- `%s'"), idx + 1,
+ {
+ gas_assert (idx >= 0);
+ as_bad (_("operand %d should be %s -- `%s'"), idx + 1,
aarch64_get_operand_desc (opd_code), str);
+ }
break;
case AARCH64_OPDE_INVALID_VARIANT:
size_t len = strlen (get_mnemonic_name (str));
int i, qlf_idx;
bfd_boolean result;
- const size_t size = 2048;
- char buf[size];
+ char buf[2048];
aarch64_inst *inst_base = &inst.base;
const aarch64_opnd_qualifier_seq_t *qualifiers_list;
/* Print the hint. */
output_info (_(" did you mean this?"));
- snprintf (buf, size, "\t%s", get_mnemonic_name (str));
+ snprintf (buf, sizeof (buf), "\t%s", get_mnemonic_name (str));
print_operands (buf, opcode, inst_base->operands);
output_info (_(" %s"), buf);
if (i != qlf_idx)
{
/* Mnemonics name. */
- snprintf (buf, size, "\t%s", get_mnemonic_name (str));
+ snprintf (buf, sizeof (buf), "\t%s", get_mnemonic_name (str));
/* Assign the qualifiers. */
assign_qualifier_sequence (inst_base, *qualifiers_list);
if (detail->data[0] != detail->data[1])
as_bad (_("%s out of range %d to %d at operand %d -- `%s'"),
detail->error ? detail->error : _("immediate value"),
- detail->data[0], detail->data[1], detail->index + 1, str);
+ detail->data[0], detail->data[1], idx + 1, str);
else
as_bad (_("%s expected to be %d at operand %d -- `%s'"),
detail->error ? detail->error : _("immediate value"),
- detail->data[0], detail->index + 1, str);
+ detail->data[0], idx + 1, str);
break;
case AARCH64_OPDE_REG_LIST:
if (detail->data[0] == 1)
as_bad (_("invalid number of registers in the list; "
"only 1 register is expected at operand %d -- `%s'"),
- detail->index + 1, str);
+ idx + 1, str);
else
as_bad (_("invalid number of registers in the list; "
"%d registers are expected at operand %d -- `%s'"),
- detail->data[0], detail->index + 1, str);
+ detail->data[0], idx + 1, str);
break;
case AARCH64_OPDE_UNALIGNED:
as_bad (_("immediate value should be a multiple of "
"%d at operand %d -- `%s'"),
- detail->data[0], detail->index + 1, str);
+ detail->data[0], idx + 1, str);
break;
default:
/* Element size in bytes indexed by neon_el_type. */
const unsigned char ele_size[5]
= {1, 2, 4, 8, 16};
+ const unsigned int ele_base [5] =
+ {
+ AARCH64_OPND_QLF_V_8B,
+ AARCH64_OPND_QLF_V_2H,
+ AARCH64_OPND_QLF_V_2S,
+ AARCH64_OPND_QLF_V_1D,
+ AARCH64_OPND_QLF_V_1Q
+ };
if (!vectype->defined || vectype->type == NT_invtype)
goto vectype_conversion_fail;
/* Vector register. */
int reg_size = ele_size[vectype->type] * vectype->width;
unsigned offset;
- if (reg_size != 16 && reg_size != 8)
+ unsigned shift;
+ if (reg_size != 16 && reg_size != 8 && reg_size != 4)
goto vectype_conversion_fail;
- /* The conversion is calculated based on the relation of the order of
- qualifiers to the vector element size and vector register size. */
- offset = (vectype->type == NT_q)
- ? 8 : (vectype->type << 1) + (reg_size >> 4);
- gas_assert (offset <= 8);
- return AARCH64_OPND_QLF_V_8B + offset;
+
+ /* The conversion is by calculating the offset from the base operand
+ qualifier for the vector type. The operand qualifiers are regular
+ enough that the offset can established by shifting the vector width by
+ a vector-type dependent amount. */
+ shift = 0;
+ if (vectype->type == NT_b)
+ shift = 4;
+ else if (vectype->type == NT_h || vectype->type == NT_s)
+ shift = 2;
+ else if (vectype->type >= NT_d)
+ shift = 1;
+ else
+ gas_assert (0);
+
+ offset = ele_base [vectype->type] + (vectype->width >> shift);
+ gas_assert (AARCH64_OPND_QLF_V_8B <= offset
+ && offset <= AARCH64_OPND_QLF_V_1Q);
+ return offset;
}
vectype_conversion_fail:
case BFD_RELOC_AARCH64_MOVW_G0_S:
case BFD_RELOC_AARCH64_MOVW_G1_S:
case BFD_RELOC_AARCH64_MOVW_G2_S:
+ case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0:
- case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC:
case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1:
- case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC:
case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2:
set_syntax_error
(_("the specified relocation type is not allowed for MOVK"));
switch (inst.reloc.type)
{
case BFD_RELOC_AARCH64_MOVW_G0:
- case BFD_RELOC_AARCH64_MOVW_G0_S:
case BFD_RELOC_AARCH64_MOVW_G0_NC:
+ case BFD_RELOC_AARCH64_MOVW_G0_S:
+ case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
+ case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
+ case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
+ case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC:
case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0:
case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC:
shift = 0;
break;
case BFD_RELOC_AARCH64_MOVW_G1:
- case BFD_RELOC_AARCH64_MOVW_G1_S:
case BFD_RELOC_AARCH64_MOVW_G1_NC:
+ case BFD_RELOC_AARCH64_MOVW_G1_S:
+ case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
+ case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
+ case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
+ case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC:
case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1:
case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC:
shift = 16;
break;
case BFD_RELOC_AARCH64_MOVW_G2:
- case BFD_RELOC_AARCH64_MOVW_G2_S:
case BFD_RELOC_AARCH64_MOVW_G2_NC:
+ case BFD_RELOC_AARCH64_MOVW_G2_S:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2:
case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2:
if (is32)
{
static inline bfd_reloc_code_real_type
ldst_lo12_determine_real_reloc_type (void)
{
- int logsz;
+ unsigned logsz;
enum aarch64_opnd_qualifier opd0_qlf = inst.base.operands[0].qualifier;
enum aarch64_opnd_qualifier opd1_qlf = inst.base.operands[1].qualifier;
- const bfd_reloc_code_real_type reloc_ldst_lo12[5] = {
- BFD_RELOC_AARCH64_LDST8_LO12, BFD_RELOC_AARCH64_LDST16_LO12,
- BFD_RELOC_AARCH64_LDST32_LO12, BFD_RELOC_AARCH64_LDST64_LO12,
+ const bfd_reloc_code_real_type reloc_ldst_lo12[3][5] = {
+ {
+ BFD_RELOC_AARCH64_LDST8_LO12,
+ BFD_RELOC_AARCH64_LDST16_LO12,
+ BFD_RELOC_AARCH64_LDST32_LO12,
+ BFD_RELOC_AARCH64_LDST64_LO12,
BFD_RELOC_AARCH64_LDST128_LO12
+ },
+ {
+ BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12,
+ BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12,
+ BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12,
+ BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12,
+ BFD_RELOC_AARCH64_NONE
+ },
+ {
+ BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC,
+ BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC,
+ BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC,
+ BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC,
+ BFD_RELOC_AARCH64_NONE
+ }
};
- gas_assert (inst.reloc.type == BFD_RELOC_AARCH64_LDST_LO12);
+ gas_assert (inst.reloc.type == BFD_RELOC_AARCH64_LDST_LO12
+ || inst.reloc.type == BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12
+ || (inst.reloc.type
+ == BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12_NC));
gas_assert (inst.base.opcode->operands[1] == AARCH64_OPND_ADDR_UIMM12);
if (opd1_qlf == AARCH64_OPND_QLF_NIL)
gas_assert (opd1_qlf != AARCH64_OPND_QLF_NIL);
logsz = get_logsz (aarch64_get_qualifier_esize (opd1_qlf));
- gas_assert (logsz >= 0 && logsz <= 4);
+ if (inst.reloc.type == BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12
+ || inst.reloc.type == BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12_NC)
+ gas_assert (logsz <= 3);
+ else
+ gas_assert (logsz <= 4);
- return reloc_ldst_lo12[logsz];
+ /* In reloc.c, these pseudo relocation types should be defined in similar
+ order as above reloc_ldst_lo12 array. Because the array index calcuation
+ below relies on this. */
+ return reloc_ldst_lo12[inst.reloc.type - BFD_RELOC_AARCH64_LDST_LO12][logsz];
}
/* Check whether a register list REGINFO is valid. The registers must be
case AARCH64_OPND_Rs:
case AARCH64_OPND_Ra:
case AARCH64_OPND_Rt_SYS:
+ case AARCH64_OPND_PAIRREG:
po_int_reg_or_fail (1, 0);
break;
}
if (inst.reloc.type == BFD_RELOC_UNUSED)
aarch64_set_gas_internal_fixup (&inst.reloc, info, 1);
- else if (inst.reloc.type == BFD_RELOC_AARCH64_LDST_LO12)
+ else if (inst.reloc.type == BFD_RELOC_AARCH64_LDST_LO12
+ || (inst.reloc.type
+ == BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12)
+ || (inst.reloc.type
+ == BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12_NC))
inst.reloc.type = ldst_lo12_determine_real_reloc_type ();
/* Leave qualifier to be determined by libopcodes. */
break;
break;
case AARCH64_OPND_SYSREG:
- if ((val = parse_sys_reg (&str, aarch64_sys_regs_hsh, 1))
+ if ((val = parse_sys_reg (&str, aarch64_sys_regs_hsh, 1, 0))
== PARSE_FAIL)
{
set_syntax_error (_("unknown or missing system register name"));
break;
case AARCH64_OPND_PSTATEFIELD:
- if ((val = parse_sys_reg (&str, aarch64_pstatefield_hsh, 0))
+ if ((val = parse_sys_reg (&str, aarch64_pstatefield_hsh, 0, 1))
== PARSE_FAIL)
{
set_syntax_error (_("unknown or missing PSTATE field name"));
inst.base.operands[i].prfop = aarch64_prfops + val;
break;
+ case AARCH64_OPND_BARRIER_PSB:
+ val = parse_barrier_psb (&str, &(info->hint_option));
+ if (val == PARSE_FAIL)
+ goto failure;
+ break;
+
default:
as_fatal (_("unhandled operand code %d"), operands[i]);
}
return TRUE;
}
+/* Check for loads and stores that will cause unpredictable behavior. */
+
+static void
+warn_unpredictable_ldst (aarch64_instruction *instr, char *str)
+{
+ aarch64_inst *base = &instr->base;
+ const aarch64_opcode *opcode = base->opcode;
+ const aarch64_opnd_info *opnds = base->operands;
+ switch (opcode->iclass)
+ {
+ case ldst_pos:
+ case ldst_imm9:
+ case ldst_unscaled:
+ case ldst_unpriv:
+ /* Loading/storing the base register is unpredictable if writeback. */
+ if ((aarch64_get_operand_class (opnds[0].type)
+ == AARCH64_OPND_CLASS_INT_REG)
+ && opnds[0].reg.regno == opnds[1].addr.base_regno
+ && opnds[1].addr.base_regno != REG_SP
+ && opnds[1].addr.writeback)
+ as_warn (_("unpredictable transfer with writeback -- `%s'"), str);
+ break;
+ case ldstpair_off:
+ case ldstnapair_offs:
+ case ldstpair_indexed:
+ /* Loading/storing the base register is unpredictable if writeback. */
+ if ((aarch64_get_operand_class (opnds[0].type)
+ == AARCH64_OPND_CLASS_INT_REG)
+ && (opnds[0].reg.regno == opnds[2].addr.base_regno
+ || opnds[1].reg.regno == opnds[2].addr.base_regno)
+ && opnds[2].addr.base_regno != REG_SP
+ && opnds[2].addr.writeback)
+ as_warn (_("unpredictable transfer with writeback -- `%s'"), str);
+ /* Load operations must load different registers. */
+ if ((opcode->opcode & (1 << 22))
+ && opnds[0].reg.regno == opnds[1].reg.regno)
+ as_warn (_("unpredictable load of register pair -- `%s'"), str);
+ break;
+ default:
+ break;
+ }
+}
+
/* A wrapper function to interface with libopcodes on encoding and
record the error message if there is any.
init_operand_error_report ();
+ /* Sections are assumed to start aligned. In executable section, there is no
+ MAP_DATA symbol pending. So we only align the address during
+ MAP_DATA --> MAP_INSN transition.
+ For other sections, this is not guaranteed. */
+ enum mstate mapstate = seg_info (now_seg)->tc_segment_info_data.mapstate;
+ if (!need_pass_2 && subseg_text_p (now_seg) && mapstate == MAP_DATA)
+ frag_align_code (2, 0);
+
saved_cond = inst.cond;
reset_aarch64_instruction (&inst);
inst.cond = saved_cond;
{
/* Check that this instruction is supported for this CPU. */
if (!opcode->avariant
- || !AARCH64_CPU_HAS_FEATURE (cpu_variant, *opcode->avariant))
+ || !AARCH64_CPU_HAS_ALL_FEATURES (cpu_variant, *opcode->avariant))
{
as_bad (_("selected processor does not support `%s'"), str);
return;
}
+ warn_unpredictable_ldst (&inst, str);
+
if (inst.reloc.type == BFD_RELOC_UNUSED
|| !inst.reloc.need_libopcodes_p)
output_inst (NULL);
store the instruction information for the future fix-up. */
struct aarch64_inst *copy;
gas_assert (inst.reloc.type != BFD_RELOC_UNUSED);
- if ((copy = xmalloc (sizeof (struct aarch64_inst))) == NULL)
- abort ();
+ copy = XNEW (struct aarch64_inst);
memcpy (copy, &inst.base, sizeof (struct aarch64_inst));
output_inst (copy);
}
}
/* This is called from HANDLE_ALIGN in write.c. Fill in the contents
- of an rs_align_code fragment. */
+ of an rs_align_code fragment.
+
+ Here we fill the frag with the appropriate info for padding the
+ output stream. The resulting frag will consist of a fixed (fr_fix)
+ and of a repeating (fr_var) part.
+
+ The fixed content is always emitted before the repeating content and
+ these two parts are used as follows in constructing the output:
+ - the fixed part will be used to align to a valid instruction word
+ boundary, in case that we start at a misaligned address; as no
+ executable instruction can live at the misaligned location, we
+ simply fill with zeros;
+ - the variable part will be used to cover the remaining padding and
+ we fill using the AArch64 NOP instruction.
+
+ Note that the size of a RS_ALIGN_CODE fragment is always 7 to provide
+ enough storage space for up to 3 bytes for padding the back to a valid
+ instruction alignment and exactly 4 bytes to store the NOP pattern. */
void
aarch64_handle_align (fragS * fragP)
{
/* NOP = d503201f */
/* AArch64 instructions are always little-endian. */
- static char const aarch64_noop[4] = { 0x1f, 0x20, 0x03, 0xd5 };
+ static unsigned char const aarch64_noop[4] = { 0x1f, 0x20, 0x03, 0xd5 };
int bytes, fix, noop_size;
char *p;
- const char *noop;
if (fragP->fr_type != rs_align_code)
return;
bytes = fragP->fr_next->fr_address - fragP->fr_address - fragP->fr_fix;
p = fragP->fr_literal + fragP->fr_fix;
- fix = 0;
-
- if (bytes > MAX_MEM_FOR_RS_ALIGN_CODE)
- bytes &= MAX_MEM_FOR_RS_ALIGN_CODE;
#ifdef OBJ_ELF
gas_assert (fragP->tc_frag_data.recorded);
#endif
- noop = aarch64_noop;
noop_size = sizeof (aarch64_noop);
- fragP->fr_var = noop_size;
- if (bytes & (noop_size - 1))
+ fix = bytes & (noop_size - 1);
+ if (fix)
{
- fix = bytes & (noop_size - 1);
#ifdef OBJ_ELF
insert_data_mapping_symbol (MAP_INSN, fragP->fr_fix, fragP, fix);
#endif
memset (p, 0, fix);
p += fix;
- bytes -= fix;
- }
-
- while (bytes >= noop_size)
- {
- memcpy (p, noop, noop_size);
- p += noop_size;
- bytes -= noop_size;
- fix += noop_size;
+ fragP->fr_fix += fix;
}
- fragP->fr_fix += fix;
-}
-
-/* Called from md_do_align. Used to create an alignment
- frag in a code section. */
-
-void
-aarch64_frag_align_code (int n, int max)
-{
- char *p;
-
- /* We assume that there will never be a requirement
- to support alignments greater than x bytes. */
- if (max > MAX_MEM_FOR_RS_ALIGN_CODE)
- as_fatal (_
- ("alignments greater than %d bytes not supported in .text sections"),
- MAX_MEM_FOR_RS_ALIGN_CODE + 1);
-
- p = frag_var (rs_align_code,
- MAX_MEM_FOR_RS_ALIGN_CODE,
- 1,
- (relax_substateT) max,
- (symbolS *) NULL, (offsetT) n, (char *) NULL);
- *p = 0;
+ if (noop_size)
+ memcpy (p, aarch64_noop, noop_size);
+ fragP->fr_var = noop_size;
}
/* Perform target specific initialisation of a frag.
/* Record a mapping symbol for alignment frags. We will delete this
later if the alignment ends up empty. */
if (!fragP->tc_frag_data.recorded)
+ fragP->tc_frag_data.recorded = 1;
+
+ switch (fragP->fr_type)
{
- fragP->tc_frag_data.recorded = 1;
- 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 (MAP_INSN, max_chars);
- break;
- default:
- break;
- }
+ case rs_align_test:
+ case rs_fill:
+ mapping_state_2 (MAP_DATA, max_chars);
+ break;
+ case rs_align:
+ /* PR 20364: We can get alignment frags in code sections,
+ so do not just assume that we should use the MAP_DATA state. */
+ mapping_state_2 (subseg_text_p (now_seg) ? MAP_INSN : MAP_DATA, max_chars);
+ break;
+ case rs_align_code:
+ mapping_state_2 (MAP_INSN, max_chars);
+ break;
+ default:
+ break;
}
}
\f
}
break;
- case BFD_RELOC_AARCH64_JUMP26:
case BFD_RELOC_AARCH64_CALL26:
+ case BFD_RELOC_AARCH64_JUMP26:
if (fixP->fx_done || !seg->use_rela_p)
{
if (value & 3)
break;
case BFD_RELOC_AARCH64_MOVW_G0:
- case BFD_RELOC_AARCH64_MOVW_G0_S:
case BFD_RELOC_AARCH64_MOVW_G0_NC:
+ case BFD_RELOC_AARCH64_MOVW_G0_S:
+ case BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC:
scale = 0;
goto movw_common;
case BFD_RELOC_AARCH64_MOVW_G1:
- case BFD_RELOC_AARCH64_MOVW_G1_S:
case BFD_RELOC_AARCH64_MOVW_G1_NC:
+ case BFD_RELOC_AARCH64_MOVW_G1_S:
+ case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
scale = 16;
goto movw_common;
+ case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
+ scale = 0;
+ S_SET_THREAD_LOCAL (fixP->fx_addsy);
+ /* Should always be exported to object file, see
+ aarch64_force_relocation(). */
+ gas_assert (!fixP->fx_done);
+ gas_assert (seg->use_rela_p);
+ goto movw_common;
+ case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
+ scale = 16;
+ S_SET_THREAD_LOCAL (fixP->fx_addsy);
+ /* Should always be exported to object file, see
+ aarch64_force_relocation(). */
+ gas_assert (!fixP->fx_done);
+ gas_assert (seg->use_rela_p);
+ goto movw_common;
case BFD_RELOC_AARCH64_MOVW_G2:
- case BFD_RELOC_AARCH64_MOVW_G2_S:
case BFD_RELOC_AARCH64_MOVW_G2_NC:
+ case BFD_RELOC_AARCH64_MOVW_G2_S:
scale = 32;
goto movw_common;
case BFD_RELOC_AARCH64_MOVW_G3:
case BFD_RELOC_AARCH64_MOVW_G1:
case BFD_RELOC_AARCH64_MOVW_G2:
case BFD_RELOC_AARCH64_MOVW_G3:
+ case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
+ case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
if (unsigned_overflow (value, scale + 16))
as_bad_where (fixP->fx_file, fixP->fx_line,
_("unsigned value out of range"));
case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12_NC:
case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
+ case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC:
case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
+ case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
+ case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
+ case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC:
case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
+ case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC:
+ case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1:
+ case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12:
+ case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12:
+ case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
+ case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
+ case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12:
+ case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12:
+ case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12:
+ case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12:
+ case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2:
case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12:
case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12:
case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
gas_assert (seg->use_rela_p);
break;
- case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
- case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL:
case BFD_RELOC_AARCH64_ADD_LO12:
- case BFD_RELOC_AARCH64_LDST8_LO12:
+ case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
+ case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL:
+ case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
+ case BFD_RELOC_AARCH64_GOT_LD_PREL19:
+ case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
+ case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
+ case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
+ case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
+ case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
+ case BFD_RELOC_AARCH64_LDST128_LO12:
case BFD_RELOC_AARCH64_LDST16_LO12:
case BFD_RELOC_AARCH64_LDST32_LO12:
case BFD_RELOC_AARCH64_LDST64_LO12:
- case BFD_RELOC_AARCH64_LDST128_LO12:
- case BFD_RELOC_AARCH64_GOT_LD_PREL19:
- case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
- case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
- case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
+ case BFD_RELOC_AARCH64_LDST8_LO12:
/* Should always be exported to object file, see
aarch64_force_relocation(). */
gas_assert (!fixP->fx_done);
break;
case BFD_RELOC_AARCH64_TLSDESC_ADD:
- case BFD_RELOC_AARCH64_TLSDESC_LDR:
case BFD_RELOC_AARCH64_TLSDESC_CALL:
+ case BFD_RELOC_AARCH64_TLSDESC_LDR:
break;
case BFD_RELOC_UNUSED:
arelent *reloc;
bfd_reloc_code_real_type code;
- reloc = xmalloc (sizeof (arelent));
+ reloc = XNEW (arelent);
- reloc->sym_ptr_ptr = 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;
even if the symbol is extern or weak. */
return 0;
- case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_LO12_NC:
- case BFD_RELOC_AARCH64_TLSDESC_LD_LO12_NC:
case BFD_RELOC_AARCH64_LD_GOT_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSDESC_LD_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_LO12_NC:
/* Pseudo relocs that need to be fixed up according to
ilp32_p. */
return 0;
case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
case BFD_RELOC_AARCH64_GOT_LD_PREL19:
case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
+ case BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14:
+ case BFD_RELOC_AARCH64_LD64_GOTOFF_LO15:
+ case BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15:
case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
case BFD_RELOC_AARCH64_LDST128_LO12:
case BFD_RELOC_AARCH64_LDST16_LO12:
case BFD_RELOC_AARCH64_LDST8_LO12:
case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12_NC:
case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
+ case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC:
case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSDESC_LD_PREL19:
+ case BFD_RELOC_AARCH64_TLSDESC_OFF_G0_NC:
+ case BFD_RELOC_AARCH64_TLSDESC_OFF_G1:
case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
+ case BFD_RELOC_AARCH64_TLSGD_ADR_PREL21:
+ case BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC:
+ case BFD_RELOC_AARCH64_TLSGD_MOVW_G1:
case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC:
case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
+ case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC:
+ case BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1:
+ case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12:
+ case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12:
+ case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
+ case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
+ case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12:
+ case BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12:
+ case BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12:
+ case BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12:
+ case BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC:
+ case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2:
case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12:
case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12:
case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
const char *
elf64_aarch64_target_format (void)
{
+ if (strcmp (TARGET_OS, "cloudabi") == 0)
+ {
+ /* FIXME: What to do for ilp32_p ? */
+ return target_big_endian ? "elf64-bigaarch64-cloudabi" : "elf64-littleaarch64-cloudabi";
+ }
if (target_big_endian)
return ilp32_p ? "elf32-bigaarch64" : "elf64-bigaarch64";
else
templates *templ, *new_templ;
templ = hash_find (aarch64_ops_hsh, opcode->name);
- new_templ = (templates *) xmalloc (sizeof (templates));
+ new_templ = XNEW (templates);
new_templ->opcode = opcode;
new_templ->next = NULL;
{
char *ret;
size_t len = strlen (str);
- if ((ret = xmalloc (len + 1)) == NULL)
- abort ();
+ ret = XNEWVEC (char, len + 1);
convert_to_upper (ret, str, len);
return ret;
}
|| (aarch64_reg_hsh = hash_new ()) == NULL
|| (aarch64_barrier_opt_hsh = hash_new ()) == NULL
|| (aarch64_nzcv_hsh = hash_new ()) == NULL
- || (aarch64_pldop_hsh = hash_new ()) == NULL)
+ || (aarch64_pldop_hsh = hash_new ()) == NULL
+ || (aarch64_hint_opt_hsh = hash_new ()) == NULL)
as_fatal (_("virtual memory exhausted"));
fill_instruction_hash_table ();
aarch64_pstatefields[i].name,
(void *) (aarch64_pstatefields + i));
- for (i = 0; aarch64_sys_regs_ic[i].template != NULL; i++)
+ for (i = 0; aarch64_sys_regs_ic[i].name != NULL; i++)
checked_hash_insert (aarch64_sys_regs_ic_hsh,
- aarch64_sys_regs_ic[i].template,
+ aarch64_sys_regs_ic[i].name,
(void *) (aarch64_sys_regs_ic + i));
- for (i = 0; aarch64_sys_regs_dc[i].template != NULL; i++)
+ for (i = 0; aarch64_sys_regs_dc[i].name != NULL; i++)
checked_hash_insert (aarch64_sys_regs_dc_hsh,
- aarch64_sys_regs_dc[i].template,
+ aarch64_sys_regs_dc[i].name,
(void *) (aarch64_sys_regs_dc + i));
- for (i = 0; aarch64_sys_regs_at[i].template != NULL; i++)
+ for (i = 0; aarch64_sys_regs_at[i].name != NULL; i++)
checked_hash_insert (aarch64_sys_regs_at_hsh,
- aarch64_sys_regs_at[i].template,
+ aarch64_sys_regs_at[i].name,
(void *) (aarch64_sys_regs_at + i));
- for (i = 0; aarch64_sys_regs_tlbi[i].template != NULL; i++)
+ for (i = 0; aarch64_sys_regs_tlbi[i].name != NULL; i++)
checked_hash_insert (aarch64_sys_regs_tlbi_hsh,
- aarch64_sys_regs_tlbi[i].template,
+ aarch64_sys_regs_tlbi[i].name,
(void *) (aarch64_sys_regs_tlbi + i));
for (i = 0; i < ARRAY_SIZE (reg_names); i++)
(void *) (aarch64_prfops + i));
}
+ for (i = 0; aarch64_hint_options[i].name != NULL; i++)
+ {
+ const char* name = aarch64_hint_options[i].name;
+
+ checked_hash_insert (aarch64_hint_opt_hsh, name,
+ (void *) (aarch64_hint_options + i));
+ /* Also hash the name in the upper case. */
+ checked_hash_insert (aarch64_pldop_hsh, get_upper_str (name),
+ (void *) (aarch64_hint_options + i));
+ }
+
/* Set the cpu variant based on the command-line options. */
if (!mcpu_cpu_opt)
mcpu_cpu_opt = march_cpu_opt;
struct aarch64_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. */
struct aarch64_cpu_option_table
{
- char *name;
+ const char *name;
const aarch64_feature_set value;
/* The canonical name of the CPU, or NULL to use NAME converted to upper
case. */
recognized by GCC. */
static const struct aarch64_cpu_option_table aarch64_cpus[] = {
{"all", AARCH64_ANY, NULL},
- {"cortex-a53", AARCH64_ARCH_V8, "Cortex-A53"},
- {"cortex-a57", AARCH64_ARCH_V8, "Cortex-A57"},
+ {"cortex-a35", AARCH64_FEATURE (AARCH64_ARCH_V8,
+ AARCH64_FEATURE_CRC), "Cortex-A35"},
+ {"cortex-a53", AARCH64_FEATURE (AARCH64_ARCH_V8,
+ AARCH64_FEATURE_CRC), "Cortex-A53"},
+ {"cortex-a57", AARCH64_FEATURE (AARCH64_ARCH_V8,
+ AARCH64_FEATURE_CRC), "Cortex-A57"},
+ {"cortex-a72", AARCH64_FEATURE (AARCH64_ARCH_V8,
+ AARCH64_FEATURE_CRC), "Cortex-A72"},
+ {"cortex-a73", AARCH64_FEATURE (AARCH64_ARCH_V8,
+ AARCH64_FEATURE_CRC), "Cortex-A73"},
+ {"exynos-m1", AARCH64_FEATURE (AARCH64_ARCH_V8,
+ AARCH64_FEATURE_CRC | AARCH64_FEATURE_CRYPTO),
+ "Samsung Exynos M1"},
+ {"qdf24xx", AARCH64_FEATURE (AARCH64_ARCH_V8,
+ AARCH64_FEATURE_CRC | AARCH64_FEATURE_CRYPTO),
+ "Qualcomm QDF24XX"},
+ {"thunderx", AARCH64_FEATURE (AARCH64_ARCH_V8,
+ AARCH64_FEATURE_CRC | AARCH64_FEATURE_CRYPTO),
+ "Cavium ThunderX"},
+ {"vulcan", AARCH64_FEATURE (AARCH64_ARCH_V8_1,
+ AARCH64_FEATURE_CRYPTO),
+ "Broadcom Vulcan"},
+ /* The 'xgene-1' name is an older name for 'xgene1', which was used
+ in earlier releases and is superseded by 'xgene1' in all
+ tools. */
{"xgene-1", AARCH64_ARCH_V8, "APM X-Gene 1"},
+ {"xgene1", AARCH64_ARCH_V8, "APM X-Gene 1"},
+ {"xgene2", AARCH64_FEATURE (AARCH64_ARCH_V8,
+ AARCH64_FEATURE_CRC), "APM X-Gene 2"},
{"generic", AARCH64_ARCH_V8, NULL},
- /* These two are example CPUs supported in GCC, once we have real
- CPUs they will be removed. */
- {"example-1", AARCH64_ARCH_V8, NULL},
- {"example-2", AARCH64_ARCH_V8, NULL},
-
{NULL, AARCH64_ARCH_NONE, NULL}
};
struct aarch64_arch_option_table
{
- char *name;
+ const char *name;
const aarch64_feature_set value;
};
static const struct aarch64_arch_option_table aarch64_archs[] = {
{"all", AARCH64_ANY},
{"armv8-a", AARCH64_ARCH_V8},
+ {"armv8.1-a", AARCH64_ARCH_V8_1},
+ {"armv8.2-a", AARCH64_ARCH_V8_2},
{NULL, AARCH64_ARCH_NONE}
};
/* ISA extensions. */
struct aarch64_option_cpu_value_table
{
- char *name;
+ const char *name;
const aarch64_feature_set value;
+ const aarch64_feature_set require; /* Feature dependencies. */
};
static const struct aarch64_option_cpu_value_table aarch64_features[] = {
- {"crc", AARCH64_FEATURE (AARCH64_FEATURE_CRC, 0)},
- {"crypto", AARCH64_FEATURE (AARCH64_FEATURE_CRYPTO, 0)},
- {"fp", AARCH64_FEATURE (AARCH64_FEATURE_FP, 0)},
- {"simd", AARCH64_FEATURE (AARCH64_FEATURE_SIMD, 0)},
- {NULL, AARCH64_ARCH_NONE}
+ {"crc", AARCH64_FEATURE (AARCH64_FEATURE_CRC, 0),
+ AARCH64_ARCH_NONE},
+ {"crypto", AARCH64_FEATURE (AARCH64_FEATURE_CRYPTO, 0),
+ AARCH64_ARCH_NONE},
+ {"fp", AARCH64_FEATURE (AARCH64_FEATURE_FP, 0),
+ AARCH64_ARCH_NONE},
+ {"lse", AARCH64_FEATURE (AARCH64_FEATURE_LSE, 0),
+ AARCH64_ARCH_NONE},
+ {"simd", AARCH64_FEATURE (AARCH64_FEATURE_SIMD, 0),
+ AARCH64_ARCH_NONE},
+ {"pan", AARCH64_FEATURE (AARCH64_FEATURE_PAN, 0),
+ AARCH64_ARCH_NONE},
+ {"lor", AARCH64_FEATURE (AARCH64_FEATURE_LOR, 0),
+ AARCH64_ARCH_NONE},
+ {"ras", AARCH64_FEATURE (AARCH64_FEATURE_RAS, 0),
+ AARCH64_ARCH_NONE},
+ {"rdma", AARCH64_FEATURE (AARCH64_FEATURE_RDMA, 0),
+ AARCH64_FEATURE (AARCH64_FEATURE_SIMD, 0)},
+ {"fp16", AARCH64_FEATURE (AARCH64_FEATURE_F16, 0),
+ AARCH64_FEATURE (AARCH64_FEATURE_FP, 0)},
+ {"profile", AARCH64_FEATURE (AARCH64_FEATURE_PROFILE, 0),
+ AARCH64_ARCH_NONE},
+ {NULL, AARCH64_ARCH_NONE, AARCH64_ARCH_NONE},
};
struct aarch64_long_option_table
{
- char *option; /* Substring to match. */
- char *help; /* Help information. */
- int (*func) (char *subopt); /* Function to decode sub-option. */
+ const char *option; /* Substring to match. */
+ const char *help; /* Help information. */
+ int (*func) (const char *subopt); /* Function to decode sub-option. */
char *deprecated; /* If non-null, print this message. */
};
+/* Transitive closure of features depending on set. */
+static aarch64_feature_set
+aarch64_feature_disable_set (aarch64_feature_set set)
+{
+ const struct aarch64_option_cpu_value_table *opt;
+ aarch64_feature_set prev = 0;
+
+ while (prev != set) {
+ prev = set;
+ for (opt = aarch64_features; opt->name != NULL; opt++)
+ if (AARCH64_CPU_HAS_ANY_FEATURES (opt->require, set))
+ AARCH64_MERGE_FEATURE_SETS (set, set, opt->value);
+ }
+ return set;
+}
+
+/* Transitive closure of dependencies of set. */
+static aarch64_feature_set
+aarch64_feature_enable_set (aarch64_feature_set set)
+{
+ const struct aarch64_option_cpu_value_table *opt;
+ aarch64_feature_set prev = 0;
+
+ while (prev != set) {
+ prev = set;
+ for (opt = aarch64_features; opt->name != NULL; opt++)
+ if (AARCH64_CPU_HAS_FEATURE (set, opt->value))
+ AARCH64_MERGE_FEATURE_SETS (set, set, opt->require);
+ }
+ return set;
+}
+
static int
-aarch64_parse_features (char *str, const aarch64_feature_set **opt_p)
+aarch64_parse_features (const char *str, const aarch64_feature_set **opt_p,
+ bfd_boolean ext_only)
{
/* We insist on extensions being added before being removed. We achieve
this by using the ADDING_VALUE variable to indicate whether we are
adding an extension (1) or removing it (0) and only allowing it to
change in the order -1 -> 1 -> 0. */
int adding_value = -1;
- aarch64_feature_set *ext_set = xmalloc (sizeof (aarch64_feature_set));
+ aarch64_feature_set *ext_set = XNEW (aarch64_feature_set);
/* Copy the feature set, so that we can modify it. */
*ext_set = **opt_p;
while (str != NULL && *str != 0)
{
const struct aarch64_option_cpu_value_table *opt;
- char *ext;
+ const char *ext = NULL;
int optlen;
- if (*str != '+')
+ if (!ext_only)
{
- as_bad (_("invalid architectural extension"));
- return 0;
- }
+ if (*str != '+')
+ {
+ as_bad (_("invalid architectural extension"));
+ return 0;
+ }
- str++;
- ext = strchr (str, '+');
+ ext = strchr (++str, '+');
+ }
if (ext != NULL)
optlen = ext - str;
for (opt = aarch64_features; opt->name != NULL; opt++)
if (strncmp (opt->name, str, optlen) == 0)
{
+ aarch64_feature_set set;
+
/* Add or remove the extension. */
if (adding_value)
- AARCH64_MERGE_FEATURE_SETS (*ext_set, *ext_set, opt->value);
+ {
+ set = aarch64_feature_enable_set (opt->value);
+ AARCH64_MERGE_FEATURE_SETS (*ext_set, *ext_set, set);
+ }
else
- AARCH64_CLEAR_FEATURE (*ext_set, *ext_set, opt->value);
+ {
+ set = aarch64_feature_disable_set (opt->value);
+ AARCH64_CLEAR_FEATURE (*ext_set, *ext_set, set);
+ }
break;
}
}
static int
-aarch64_parse_cpu (char *str)
+aarch64_parse_cpu (const char *str)
{
const struct aarch64_cpu_option_table *opt;
- char *ext = strchr (str, '+');
+ const char *ext = strchr (str, '+');
size_t optlen;
if (ext != NULL)
{
mcpu_cpu_opt = &opt->value;
if (ext != NULL)
- return aarch64_parse_features (ext, &mcpu_cpu_opt);
+ return aarch64_parse_features (ext, &mcpu_cpu_opt, FALSE);
return 1;
}
}
static int
-aarch64_parse_arch (char *str)
+aarch64_parse_arch (const char *str)
{
const struct aarch64_arch_option_table *opt;
- char *ext = strchr (str, '+');
+ const char *ext = strchr (str, '+');
size_t optlen;
if (ext != NULL)
{
march_cpu_opt = &opt->value;
if (ext != NULL)
- return aarch64_parse_features (ext, &march_cpu_opt);
+ return aarch64_parse_features (ext, &march_cpu_opt, FALSE);
return 1;
}
/* ABIs. */
struct aarch64_option_abi_value_table
{
- char *name;
+ const char *name;
enum aarch64_abi_type value;
};
static const struct aarch64_option_abi_value_table aarch64_abis[] = {
{"ilp32", AARCH64_ABI_ILP32},
{"lp64", AARCH64_ABI_LP64},
- {NULL, 0}
};
static int
-aarch64_parse_abi (char *str)
+aarch64_parse_abi (const char *str)
{
- const struct aarch64_option_abi_value_table *opt;
- size_t optlen = strlen (str);
+ unsigned int i;
- if (optlen == 0)
+ if (str[0] == '\0')
{
as_bad (_("missing abi name `%s'"), str);
return 0;
}
- for (opt = aarch64_abis; opt->name != NULL; opt++)
- if (strlen (opt->name) == optlen && strncmp (str, opt->name, optlen) == 0)
+ for (i = 0; i < ARRAY_SIZE (aarch64_abis); i++)
+ if (strcmp (str, aarch64_abis[i].name) == 0)
{
- aarch64_abi = opt->value;
+ aarch64_abi = aarch64_abis[i].value;
return 1;
}
};
int
-md_parse_option (int c, char *arg)
+md_parse_option (int c, const char *arg)
{
struct aarch64_option_table *opt;
struct aarch64_long_option_table *lopt;
{
mcpu_cpu_opt = &opt->value;
if (ext != NULL)
- if (!aarch64_parse_features (ext, &mcpu_cpu_opt))
+ if (!aarch64_parse_features (ext, &mcpu_cpu_opt, FALSE))
return;
cpu_variant = *mcpu_cpu_opt;
{
mcpu_cpu_opt = &opt->value;
if (ext != NULL)
- if (!aarch64_parse_features (ext, &mcpu_cpu_opt))
+ if (!aarch64_parse_features (ext, &mcpu_cpu_opt, FALSE))
return;
cpu_variant = *mcpu_cpu_opt;
ignore_rest_of_line ();
}
+/* Parse a .arch_extension directive. */
+
+static void
+s_aarch64_arch_extension (int ignored ATTRIBUTE_UNUSED)
+{
+ char saved_char;
+ char *ext = input_line_pointer;;
+
+ while (*input_line_pointer && !ISSPACE (*input_line_pointer))
+ input_line_pointer++;
+ saved_char = *input_line_pointer;
+ *input_line_pointer = 0;
+
+ if (!aarch64_parse_features (ext, &mcpu_cpu_opt, TRUE))
+ return;
+
+ cpu_variant = *mcpu_cpu_opt;
+
+ *input_line_pointer = saved_char;
+ demand_empty_rest_of_line ();
+}
+
/* Copy symbol information. */
void
projects / deliverable / binutils-gdb.git / blobdiff