/* tc-mips.c -- assemble code for a MIPS chip.
Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
- 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+ 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Free Software Foundation, Inc.
Contributed by the OSF and Ralph Campbell.
Written by Keith Knowles and Ralph Campbell, working independently.
/* The opcode's entry in mips_opcodes or mips16_opcodes. */
const struct mips_opcode *insn_mo;
- /* True if this is a mips16 instruction and if we want the extended
- form of INSN_MO. */
- bfd_boolean use_extend;
-
- /* The 16-bit extension instruction to use when USE_EXTEND is true. */
- unsigned short extend;
-
/* The 16-bit or 32-bit bitstring of the instruction itself. This is
- a copy of INSN_MO->match with the operands filled in. */
+ a copy of INSN_MO->match with the operands filled in. If we have
+ decided to use an extended MIPS16 instruction, this includes the
+ extension. */
unsigned long insn_opcode;
/* The frag that contains the instruction. */
/* True if this instruction is complete. */
unsigned int complete_p : 1;
+
+ /* True if this instruction is cleared from history by unconditional
+ branch. */
+ unsigned int cleared_p : 1;
};
/* The ABI to use. */
static int file_ase_dsp;
#define ISA_SUPPORTS_DSP_ASE (mips_opts.isa == ISA_MIPS32R2 \
- || mips_opts.isa == ISA_MIPS64R2)
+ || mips_opts.isa == ISA_MIPS64R2 \
+ || mips_opts.micromips)
#define ISA_SUPPORTS_DSP64_ASE (mips_opts.isa == ISA_MIPS64R2)
static int file_ase_dspr2;
#define ISA_SUPPORTS_DSPR2_ASE (mips_opts.isa == ISA_MIPS32R2 \
- || mips_opts.isa == ISA_MIPS64R2)
+ || mips_opts.isa == ISA_MIPS64R2 \
+ || mips_opts.micromips)
/* True if -mmt was passed or implied by arguments passed on the
command line (e.g., by -march). */
/* True if CPU has seq/sne and seqi/snei instructions. */
#define CPU_HAS_SEQ(CPU) (CPU_IS_OCTEON (CPU))
-/* True if CPU does not implement the all the coprocessor insns. For these
- CPUs only those COP insns are accepted that are explicitly marked to be
- available on the CPU. ISA membership for COP insns is ignored. */
-#define NO_ISA_COP(CPU) (CPU_IS_OCTEON (CPU))
+/* True, if CPU has support for ldc1 and sdc1. */
+#define CPU_HAS_LDC1_SDC1(CPU) \
+ ((mips_opts.isa != ISA_MIPS1) && ((CPU) != CPU_R5900))
/* True if mflo and mfhi can be immediately followed by instructions
which write to the HI and LO registers.
|| mips_opts.isa == ISA_MIPS64 \
|| mips_opts.isa == ISA_MIPS64R2 \
|| mips_opts.arch == CPU_R4010 \
+ || mips_opts.arch == CPU_R5900 \
|| mips_opts.arch == CPU_R10000 \
|| mips_opts.arch == CPU_R12000 \
|| mips_opts.arch == CPU_R14000 \
#define gpr_interlocks \
(mips_opts.isa != ISA_MIPS1 \
|| mips_opts.arch == CPU_R3900 \
+ || mips_opts.arch == CPU_R5900 \
|| mips_opts.micromips \
)
#define MF_HILO_INSN(PINFO) \
((PINFO & INSN_READ_HI) || (PINFO & INSN_READ_LO))
-/* Returns true for a (non floating-point) coprocessor instruction. Reading
- or writing the condition code is only possible on the coprocessors and
- these insns are not marked with INSN_COP. Thus for these insns use the
- condition-code flags. */
-#define COP_INSN(PINFO) \
- (PINFO != INSN_MACRO \
- && ((PINFO) & (FP_S | FP_D)) == 0 \
- && ((PINFO) & (INSN_COP | INSN_READ_COND_CODE | INSN_WRITE_COND_CODE)))
-
/* Whether code compression (either of the MIPS16 or the microMIPS ASEs)
has been selected. This implies, in particular, that addresses of text
labels have their LSB set. */
#define RELAX_MICROMIPS_MARK_TOOFAR32(i) ((i) | 0x40000)
#define RELAX_MICROMIPS_CLEAR_TOOFAR32(i) ((i) & ~0x40000)
+/* Sign-extend 16-bit value X. */
+#define SEXT_16BIT(X) ((((X) + 0x8000) & 0xffff) - 0x8000)
+
/* Is the given value a sign-extended 32-bit value? */
#define IS_SEXT_32BIT_NUM(x) \
(((x) &~ (offsetT) 0x7fffffff) == 0 \
EXTRACT_BITS ((INSN).insn_opcode, \
MIPS16OP_MASK_##FIELD, \
MIPS16OP_SH_##FIELD)
+
+/* The MIPS16 EXTEND opcode, shifted left 16 places. */
+#define MIPS16_EXTEND (0xf000U << 16)
\f
/* Whether or not we are emitting a branch-likely macro. */
static bfd_boolean emit_branch_likely_macro = FALSE;
\f
/* Prototypes for static functions. */
-#define internalError() \
- as_fatal (_("internal Error, line %d, %s"), __LINE__, __FILE__)
-
enum mips_regclass { MIPS_GR_REG, MIPS_FP_REG, MIPS16_REG };
static void append_insn
static void mips_ip (char *str, struct mips_cl_insn * ip);
static void mips16_ip (char *str, struct mips_cl_insn * ip);
static void mips16_immed
- (char *, unsigned int, int, offsetT, bfd_boolean, bfd_boolean, bfd_boolean,
- unsigned long *, bfd_boolean *, unsigned short *);
+ (char *, unsigned int, int, bfd_reloc_code_real_type, offsetT,
+ unsigned int, unsigned long *);
static size_t my_getSmallExpression
(expressionS *, bfd_reloc_code_real_type *, char *);
static void my_getExpression (expressionS *, char *);
static unsigned int forced_insn_length;
+/* True if we are assembling an instruction. All dot symbols defined during
+ this time should be treated as code labels. */
+
+static bfd_boolean mips_assembling_insn;
+
#ifdef OBJ_ELF
/* The pdr segment for per procedure frame/regmask info. Not used for
ECOFF debugging. */
return (mo->mask >> 16) == 0 ? 2 : 4;
}
+/* Return the length of MIPS16 instruction OPCODE. */
+
+static inline unsigned int
+mips16_opcode_length (unsigned long opcode)
+{
+ return (opcode >> 16) == 0 ? 2 : 4;
+}
+
/* Return the length of instruction INSN. */
static inline unsigned int
if (mips_opts.micromips)
return micromips_insn_length (insn->insn_mo);
else if (mips_opts.mips16)
- return insn->mips16_absolute_jump_p || insn->use_extend ? 4 : 2;
+ return mips16_opcode_length (insn->insn_opcode);
else
return 4;
}
size_t i;
insn->insn_mo = mo;
- insn->use_extend = FALSE;
- insn->extend = 0;
insn->insn_opcode = mo->match;
insn->frag = NULL;
insn->where = 0;
insn->noreorder_p = (mips_opts.noreorder > 0);
insn->mips16_absolute_jump_p = 0;
insn->complete_p = 0;
+ insn->cleared_p = 0;
}
/* Record the current MIPS16/microMIPS mode in now_seg. */
si->tc_segment_info_data.micromips = mips_opts.micromips;
}
+/* Read a standard MIPS instruction from BUF. */
+
+static unsigned long
+read_insn (char *buf)
+{
+ if (target_big_endian)
+ return bfd_getb32 ((bfd_byte *) buf);
+ else
+ return bfd_getl32 ((bfd_byte *) buf);
+}
+
+/* Write standard MIPS instruction INSN to BUF. Return a pointer to
+ the next byte. */
+
+static char *
+write_insn (char *buf, unsigned int insn)
+{
+ md_number_to_chars (buf, insn, 4);
+ return buf + 4;
+}
+
+/* Read a microMIPS or MIPS16 opcode from BUF, given that it
+ has length LENGTH. */
+
+static unsigned long
+read_compressed_insn (char *buf, unsigned int length)
+{
+ unsigned long insn;
+ unsigned int i;
+
+ insn = 0;
+ for (i = 0; i < length; i += 2)
+ {
+ insn <<= 16;
+ if (target_big_endian)
+ insn |= bfd_getb16 ((char *) buf);
+ else
+ insn |= bfd_getl16 ((char *) buf);
+ buf += 2;
+ }
+ return insn;
+}
+
+/* Write microMIPS or MIPS16 instruction INSN to BUF, given that the
+ instruction is LENGTH bytes long. Return a pointer to the next byte. */
+
+static char *
+write_compressed_insn (char *buf, unsigned int insn, unsigned int length)
+{
+ unsigned int i;
+
+ for (i = 0; i < length; i += 2)
+ md_number_to_chars (buf + i, insn >> ((length - i - 2) * 8), 2);
+ return buf + length;
+}
+
/* Install INSN at the location specified by its "frag" and "where" fields. */
static void
install_insn (const struct mips_cl_insn *insn)
{
char *f = insn->frag->fr_literal + insn->where;
- if (!HAVE_CODE_COMPRESSION)
- md_number_to_chars (f, insn->insn_opcode, 4);
- else if (mips_opts.micromips)
- {
- unsigned int length = insn_length (insn);
- if (length == 2)
- md_number_to_chars (f, insn->insn_opcode, 2);
- else if (length == 4)
- {
- md_number_to_chars (f, insn->insn_opcode >> 16, 2);
- f += 2;
- md_number_to_chars (f, insn->insn_opcode & 0xffff, 2);
- }
- else
- as_bad (_("48-bit microMIPS instructions are not supported"));
- }
- else if (insn->mips16_absolute_jump_p)
- {
- md_number_to_chars (f, insn->insn_opcode >> 16, 2);
- md_number_to_chars (f + 2, insn->insn_opcode & 0xffff, 2);
- }
+ if (HAVE_CODE_COMPRESSION)
+ write_compressed_insn (f, insn->insn_opcode, insn_length (insn));
else
- {
- if (insn->use_extend)
- {
- md_number_to_chars (f, 0xf000 | insn->extend, 2);
- f += 2;
- }
- md_number_to_chars (f, insn->insn_opcode, 2);
- }
+ write_insn (f, insn->insn_opcode);
mips_record_compressed_mode ();
}
if (mips_opts.ase_mcu)
isa |= INSN_MCU;
- /* Don't accept instructions based on the ISA if the CPU does not implement
- all the coprocessor insns. */
- if (NO_ISA_COP (mips_opts.arch)
- && COP_INSN (mo->pinfo))
- isa = 0;
-
- if (!OPCODE_IS_MEMBER (mo, isa, mips_opts.arch))
+ if (!opcode_is_member (mo, isa, mips_opts.arch))
return FALSE;
/* Check whether the instruction or macro requires single-precision or
static bfd_boolean
is_opcode_valid_16 (const struct mips_opcode *mo)
{
- return OPCODE_IS_MEMBER (mo, mips_opts.isa, mips_opts.arch) ? TRUE : FALSE;
+ return opcode_is_member (mo, mips_opts.isa, mips_opts.arch);
}
/* Return TRUE if the size of the microMIPS opcode MO matches one
}
/* Return TRUE if the microMIPS opcode MO is valid for the delay slot
- of the preceding instruction. Always TRUE in the standard MIPS mode. */
+ of the preceding instruction. Always TRUE in the standard MIPS mode.
+
+ We don't accept macros in 16-bit delay slots to avoid a case where
+ a macro expansion fails because it relies on a preceding 32-bit real
+ instruction to have matched and does not handle the operands correctly.
+ The only macros that may expand to 16-bit instructions are JAL that
+ cannot be placed in a delay slot anyway, and corner cases of BALIGN
+ and BGT (that likewise cannot be placed in a delay slot) that decay to
+ a NOP. In all these cases the macros precede any corresponding real
+ instruction definitions in the opcode table, so they will match in the
+ second pass where the size of the delay slot is ignored and therefore
+ produce correct code. */
static bfd_boolean
is_delay_slot_valid (const struct mips_opcode *mo)
return TRUE;
if (mo->pinfo == INSN_MACRO)
- return TRUE;
+ return (history[0].insn_mo->pinfo2 & INSN2_BRANCH_DELAY_16BIT) == 0;
if ((history[0].insn_mo->pinfo2 & INSN2_BRANCH_DELAY_32BIT) != 0
&& micromips_insn_length (mo) != 4)
return FALSE;
offset_reloc[1] = BFD_RELOC_UNUSED;
offset_reloc[2] = BFD_RELOC_UNUSED;
+ mips_mark_labels ();
+ mips_assembling_insn = TRUE;
+
if (mips_opts.mips16)
mips16_ip (str, &insn);
else
}
if (insn_error)
- {
- as_bad ("%s `%s'", insn_error, str);
- return;
- }
-
- if (insn.insn_mo->pinfo == INSN_MACRO)
+ as_bad ("%s `%s'", insn_error, str);
+ else if (insn.insn_mo->pinfo == INSN_MACRO)
{
macro_start ();
if (mips_opts.mips16)
else
append_insn (&insn, NULL, unused_reloc, FALSE);
}
+
+ mips_assembling_insn = FALSE;
}
/* Convenience functions for abstracting away the differences between
return linkonce;
}
-/* Mark instruction labels in MIPS16/microMIPS mode. This permits the
+/* Mark MIPS16 or microMIPS instruction label LABEL. This permits the
linker to handle them specially, such as generating jalx instructions
when needed. We also make them odd for the duration of the assembly,
in order to generate the right sort of code. We will make them even
to make them odd again. */
static void
-mips_compressed_mark_labels (void)
+mips_compressed_mark_label (symbolS *label)
{
- segment_info_type *si = seg_info (now_seg);
- struct insn_label_list *l;
-
gas_assert (HAVE_CODE_COMPRESSION);
- for (l = si->label_list; l != NULL; l = l->next)
- {
- symbolS *label = l->label;
-
#if defined(OBJ_ELF) || defined(OBJ_MAYBE_ELF)
- if (IS_ELF)
- {
- if (mips_opts.mips16)
- S_SET_OTHER (label, ELF_ST_SET_MIPS16 (S_GET_OTHER (label)));
- else
- S_SET_OTHER (label, ELF_ST_SET_MICROMIPS (S_GET_OTHER (label)));
- }
-#endif
- if ((S_GET_VALUE (label) & 1) == 0
- /* Don't adjust the address if the label is global or weak, or
- in a link-once section, since we'll be emitting symbol reloc
- references to it which will be patched up by the linker, and
- the final value of the symbol may or may not be MIPS16/microMIPS. */
- && ! S_IS_WEAK (label)
- && ! S_IS_EXTERNAL (label)
- && ! s_is_linkonce (label, now_seg))
- S_SET_VALUE (label, S_GET_VALUE (label) | 1);
+ if (IS_ELF)
+ {
+ if (mips_opts.mips16)
+ S_SET_OTHER (label, ELF_ST_SET_MIPS16 (S_GET_OTHER (label)));
+ else
+ S_SET_OTHER (label, ELF_ST_SET_MICROMIPS (S_GET_OTHER (label)));
}
+#endif
+ if ((S_GET_VALUE (label) & 1) == 0
+ /* Don't adjust the address if the label is global or weak, or
+ in a link-once section, since we'll be emitting symbol reloc
+ references to it which will be patched up by the linker, and
+ the final value of the symbol may or may not be MIPS16/microMIPS. */
+ && !S_IS_WEAK (label)
+ && !S_IS_EXTERNAL (label)
+ && !s_is_linkonce (label, now_seg))
+ S_SET_VALUE (label, S_GET_VALUE (label) | 1);
+}
+
+/* Mark preceding MIPS16 or microMIPS instruction labels. */
+
+static void
+mips_compressed_mark_labels (void)
+{
+ struct insn_label_list *l;
+
+ for (l = seg_info (now_seg)->label_list; l != NULL; l = l->next)
+ mips_compressed_mark_label (l->label);
}
/* End the current frag. Make it a variant frag and record the
/* IP is a branch that has a delay slot, and we need to fill it
automatically. Return true if we can do that by swapping IP
- with the previous instruction. */
+ with the previous instruction.
+ ADDRESS_EXPR is an operand of the instruction to be used with
+ RELOC_TYPE. */
static bfd_boolean
-can_swap_branch_p (struct mips_cl_insn *ip)
+can_swap_branch_p (struct mips_cl_insn *ip, expressionS *address_expr,
+ bfd_reloc_code_real_type *reloc_type)
{
unsigned long pinfo, pinfo2, prev_pinfo, prev_pinfo2;
unsigned int gpr_read, gpr_write, prev_gpr_read, prev_gpr_write;
&& insn_length (history) != 4)
return FALSE;
+ /* On R5900 short loops need to be fixed by inserting a nop in
+ the branch delay slots.
+ A short loop can be terminated too early. */
+ if (mips_opts.arch == CPU_R5900
+ /* Check if instruction has a parameter, ignore "j $31". */
+ && (address_expr != NULL)
+ /* Parameter must be 16 bit. */
+ && (*reloc_type == BFD_RELOC_16_PCREL_S2)
+ /* Branch to same segment. */
+ && (S_GET_SEGMENT(address_expr->X_add_symbol) == now_seg)
+ /* Branch to same code fragment. */
+ && (symbol_get_frag(address_expr->X_add_symbol) == frag_now)
+ /* Can only calculate branch offset if value is known. */
+ && symbol_constant_p(address_expr->X_add_symbol)
+ /* Check if branch is really conditional. */
+ && !((ip->insn_opcode & 0xffff0000) == 0x10000000 /* beq $0,$0 */
+ || (ip->insn_opcode & 0xffff0000) == 0x04010000 /* bgez $0 */
+ || (ip->insn_opcode & 0xffff0000) == 0x04110000)) /* bgezal $0 */
+ {
+ int distance;
+ /* Check if loop is shorter than 6 instructions including
+ branch and delay slot. */
+ distance = frag_now_fix() - S_GET_VALUE(address_expr->X_add_symbol);
+ if (distance <= 20)
+ {
+ int i;
+ int rv;
+
+ rv = FALSE;
+ /* When the loop includes branches or jumps,
+ it is not a short loop. */
+ for (i = 0; i < (distance / 4); i++)
+ {
+ if ((history[i].cleared_p)
+ || delayed_branch_p(&history[i]))
+ {
+ rv = TRUE;
+ break;
+ }
+ }
+ if (rv == FALSE)
+ {
+ /* Insert nop after branch to fix short loop. */
+ return FALSE;
+ }
+ }
+ }
+
return TRUE;
}
-/* Decide how we should add IP to the instruction stream. */
+/* Decide how we should add IP to the instruction stream.
+ ADDRESS_EXPR is an operand of the instruction to be used with
+ RELOC_TYPE. */
static enum append_method
-get_append_method (struct mips_cl_insn *ip)
+get_append_method (struct mips_cl_insn *ip, expressionS *address_expr,
+ bfd_reloc_code_real_type *reloc_type)
{
unsigned long pinfo;
/* Otherwise, it's our responsibility to fill branch delay slots. */
if (delayed_branch_p (ip))
{
- if (!branch_likely_p (ip) && can_swap_branch_p (ip))
+ if (!branch_likely_p (ip)
+ && can_swap_branch_p (ip, address_expr, reloc_type))
return APPEND_SWAP;
pinfo = ip->insn_mo->pinfo;
return reloc;
}
+/* Try to resolve relocation RELOC against constant OPERAND at assembly time.
+ Return true on success, storing the resolved value in RESULT. */
+
+static bfd_boolean
+calculate_reloc (bfd_reloc_code_real_type reloc, offsetT operand,
+ offsetT *result)
+{
+ switch (reloc)
+ {
+ case BFD_RELOC_MIPS_HIGHEST:
+ case BFD_RELOC_MICROMIPS_HIGHEST:
+ *result = ((operand + 0x800080008000ull) >> 48) & 0xffff;
+ return TRUE;
+
+ case BFD_RELOC_MIPS_HIGHER:
+ case BFD_RELOC_MICROMIPS_HIGHER:
+ *result = ((operand + 0x80008000ull) >> 32) & 0xffff;
+ return TRUE;
+
+ case BFD_RELOC_HI16_S:
+ case BFD_RELOC_MICROMIPS_HI16_S:
+ case BFD_RELOC_MIPS16_HI16_S:
+ *result = ((operand + 0x8000) >> 16) & 0xffff;
+ return TRUE;
+
+ case BFD_RELOC_HI16:
+ case BFD_RELOC_MICROMIPS_HI16:
+ case BFD_RELOC_MIPS16_HI16:
+ *result = (operand >> 16) & 0xffff;
+ return TRUE;
+
+ case BFD_RELOC_LO16:
+ case BFD_RELOC_MICROMIPS_LO16:
+ case BFD_RELOC_MIPS16_LO16:
+ *result = operand & 0xffff;
+ return TRUE;
+
+ case BFD_RELOC_UNUSED:
+ *result = operand;
+ return TRUE;
+
+ default:
+ return FALSE;
+ }
+}
+
/* Output an instruction. IP is the instruction information.
ADDRESS_EXPR is an operand of the instruction to be used with
RELOC_TYPE. EXPANSIONP is true if the instruction is part of
if (mips_fix_loongson2f && !HAVE_CODE_COMPRESSION)
fix_loongson2f (ip);
- mips_mark_labels ();
-
file_ase_mips16 |= mips_opts.mips16;
file_ase_micromips |= mips_opts.micromips;
if (address_expr == NULL)
ip->complete_p = 1;
- else if (*reloc_type <= BFD_RELOC_UNUSED
+ else if (reloc_type[0] <= BFD_RELOC_UNUSED
+ && reloc_type[1] == BFD_RELOC_UNUSED
+ && reloc_type[2] == BFD_RELOC_UNUSED
&& address_expr->X_op == O_constant)
{
- unsigned int tmp;
-
- ip->complete_p = 1;
switch (*reloc_type)
{
- case BFD_RELOC_32:
- ip->insn_opcode |= address_expr->X_add_number;
- break;
-
- case BFD_RELOC_MIPS_HIGHEST:
- tmp = (address_expr->X_add_number + 0x800080008000ull) >> 48;
- ip->insn_opcode |= tmp & 0xffff;
- break;
-
- case BFD_RELOC_MIPS_HIGHER:
- tmp = (address_expr->X_add_number + 0x80008000ull) >> 32;
- ip->insn_opcode |= tmp & 0xffff;
- break;
-
- case BFD_RELOC_HI16_S:
- tmp = (address_expr->X_add_number + 0x8000) >> 16;
- ip->insn_opcode |= tmp & 0xffff;
- break;
-
- case BFD_RELOC_HI16:
- ip->insn_opcode |= (address_expr->X_add_number >> 16) & 0xffff;
- break;
-
- case BFD_RELOC_UNUSED:
- case BFD_RELOC_LO16:
- case BFD_RELOC_MIPS_GOT_DISP:
- ip->insn_opcode |= address_expr->X_add_number & 0xffff;
- break;
-
case BFD_RELOC_MIPS_JMP:
{
int shift;
(unsigned long) address_expr->X_add_number);
ip->insn_opcode |= ((address_expr->X_add_number >> shift)
& 0x3ffffff);
- ip->complete_p = 0;
+ ip->complete_p = 1;
}
break;
(((address_expr->X_add_number & 0x7c0000) << 3)
| ((address_expr->X_add_number & 0xf800000) >> 7)
| ((address_expr->X_add_number & 0x3fffc) >> 2));
- ip->complete_p = 0;
+ ip->complete_p = 1;
break;
case BFD_RELOC_16_PCREL_S2:
ip->insn_opcode |= ((address_expr->X_add_number >> shift)
& 0xffff);
}
- ip->complete_p = 0;
}
break;
default:
- internalError ();
- }
+ {
+ offsetT value;
+
+ if (calculate_reloc (*reloc_type, address_expr->X_add_number,
+ &value))
+ {
+ ip->insn_opcode |= value & 0xffff;
+ ip->complete_p = 1;
+ }
+ }
+ break;
+ }
}
if (mips_relax.sequence != 2 && !mips_opts.noreorder)
}
}
- method = get_append_method (ip);
+ method = get_append_method (ip, address_expr, reloc_type);
branch_disp = method == APPEND_SWAP ? insn_length (history) : 0;
#ifdef OBJ_ELF
history[0].mips16_absolute_jump_p),
make_expr_symbol (address_expr), 0);
}
- else if (mips_opts.mips16
- && ! ip->use_extend
- && *reloc_type != BFD_RELOC_MIPS16_JMP)
+ else if (mips_opts.mips16 && insn_length (ip) == 2)
{
if (!delayed_branch_p (ip))
/* Make sure there is enough room to swap this instruction with
|| lo16_reloc_p (reloc_type[0])))
ip->fixp[0]->fx_no_overflow = 1;
+ /* These relocations can have an addend that won't fit in 2 octets. */
+ if (reloc_type[0] == BFD_RELOC_MICROMIPS_7_PCREL_S1
+ || reloc_type[0] == BFD_RELOC_MICROMIPS_10_PCREL_S1)
+ ip->fixp[0]->fx_no_overflow = 1;
+
if (mips_relax.sequence)
{
if (mips_relax.first_fixup == 0)
move_insn (ip, delay.frag, delay.where);
move_insn (&delay, ip->frag, ip->where + insn_length (ip));
}
- else if (relaxed_branch)
+ else if (relaxed_branch || delay.frag != ip->frag)
{
/* Add the delay slot instruction to the end of the
current frag and shrink the fixed part of the
/* If we have just completed an unconditional branch, clear the history. */
if ((delayed_branch_p (&history[1]) && uncond_branch_p (&history[1]))
|| (compact_branch_p (&history[0]) && uncond_branch_p (&history[0])))
- mips_no_prev_insn ();
+ {
+ unsigned int i;
+
+ mips_no_prev_insn ();
+
+ for (i = 0; i < ARRAY_SIZE (history); i++)
+ history[i].cleared_p = 1;
+ }
/* We need to emit a label at the end of branch-likely macros. */
if (emit_branch_likely_macro)
mips_clear_insn_labels ();
}
-/* Forget that there was any previous instruction or label. */
+/* Forget that there was any previous instruction or label.
+ When BRANCH is true, the branch history is also flushed. */
static void
mips_no_prev_insn (void)
continue;
default:
- internalError ();
+ abort ();
}
continue;
case '2':
- gas_assert (!mips_opts.micromips);
- INSERT_OPERAND (0, BP, insn, va_arg (args, int));
+ INSERT_OPERAND (mips_opts.micromips, BP, insn, va_arg (args, int));
continue;
case 'n':
break;
default:
- internalError ();
+ abort ();
}
continue;
default:
- internalError ();
+ abort ();
}
break;
}
case 'p':
case 'q':
{
+ offsetT value;
+
gas_assert (ep != NULL);
if (ep->X_op != O_constant)
*r = (int) BFD_RELOC_UNUSED + c;
- else
+ else if (calculate_reloc (*r, ep->X_add_number, &value))
{
- mips16_immed (NULL, 0, c, ep->X_add_number, FALSE, FALSE,
- FALSE, &insn.insn_opcode, &insn.use_extend,
- &insn.extend);
+ mips16_immed (NULL, 0, c, *r, value, 0, &insn.insn_opcode);
ep = NULL;
*r = BFD_RELOC_UNUSED;
}
if (mips_opts.micromips)
{
jalr = mips_opts.noreorder && !cprestore ? "jalr" : "jalrs";
- if (MIPS_JALR_HINT_P (ep))
+ if (MIPS_JALR_HINT_P (ep)
+ || (history[0].insn_mo->pinfo2 & INSN2_BRANCH_DELAY_32BIT))
macro_build (NULL, jalr, "t,s", RA, PIC_CALL_REG);
else
macro_build (NULL, jalr, "mj", PIC_CALL_REG);
case 2:
macro_build (NULL, "packrl.ph", "d,s,t", treg, treg, sreg);
break;
- default:
+ case 1:
+ case 3:
macro_build (NULL, "balign", "t,s,2", treg, sreg,
(int) imm_expr.X_add_number);
break;
+ default:
+ as_bad (_("BALIGN immediate not 0, 1, 2 or 3 (%lu)"),
+ (unsigned long) imm_expr.X_add_number);
+ break;
}
break;
{
expr1.X_add_number = offset_expr.X_add_number;
offset_expr.X_add_number =
- ((offset_expr.X_add_number + 0x8000) & 0xffff) - 0x8000;
+ SEXT_16BIT (offset_expr.X_add_number);
load_got_offset (tempreg, &offset_expr);
offset_expr.X_add_number = expr1.X_add_number;
/* If we are going to add in a base register, and the
used_at = 1;
}
- offset_expr.X_add_number =
- ((expr1.X_add_number + 0x8000) & 0xffff) - 0x8000;
+ offset_expr.X_add_number = SEXT_16BIT (expr1.X_add_number);
relax_switch ();
if (gpdelay)
if (mips_pic == NO_PIC)
{
s = jals ? "jalrs" : "jalr";
- if (mips_opts.micromips && dreg == RA)
+ if (mips_opts.micromips
+ && dreg == RA
+ && !(history[0].insn_mo->pinfo2 & INSN2_BRANCH_DELAY_32BIT))
macro_build (NULL, s, "mj", sreg);
else
macro_build (NULL, s, JALR_FMT, dreg, sreg);
s = (mips_opts.micromips && (!mips_opts.noreorder || cprestore)
? "jalrs" : "jalr");
- if (mips_opts.micromips && dreg == RA)
+ if (mips_opts.micromips
+ && dreg == RA
+ && !(history[0].insn_mo->pinfo2 & INSN2_BRANCH_DELAY_32BIT))
macro_build (NULL, s, "mj", sreg);
else
macro_build (NULL, s, JALR_FMT, dreg, sreg);
tempreg = AT;
used_at = 1;
ld_noat:
- if (coproc
- && NO_ISA_COP (mips_opts.arch)
- && (ip->insn_mo->pinfo2 & (INSN2_M_FP_S | INSN2_M_FP_D)) == 0)
- {
- as_bad (_("Opcode not supported on this processor: %s"),
- mips_cpu_info_from_arch (mips_opts.arch)->name);
- break;
- }
-
if (offset_expr.X_op != O_constant
&& offset_expr.X_op != O_symbol)
{
s = segment_name (S_GET_SEGMENT (offset_expr.X_add_symbol));
if (strcmp (s, ".lit8") == 0)
{
- if (mips_opts.isa != ISA_MIPS1 || mips_opts.micromips)
+ if (CPU_HAS_LDC1_SDC1 (mips_opts.arch) || mips_opts.micromips)
{
macro_build (&offset_expr, "ldc1", "T,o(b)", treg,
BFD_RELOC_MIPS_LITERAL, mips_gp_register);
macro_build_lui (&offset_expr, AT);
}
- if (mips_opts.isa != ISA_MIPS1 || mips_opts.micromips)
+ if (CPU_HAS_LDC1_SDC1 (mips_opts.arch) || mips_opts.micromips)
{
macro_build (&offset_expr, "ldc1", "T,o(b)",
treg, BFD_RELOC_LO16, AT);
r = BFD_RELOC_LO16;
dob:
gas_assert (!mips_opts.micromips);
- gas_assert (mips_opts.isa == ISA_MIPS1);
+ gas_assert (!CPU_HAS_LDC1_SDC1 (mips_opts.arch));
macro_build (&offset_expr, "lwc1", "T,o(b)",
target_big_endian ? treg + 1 : treg, r, breg);
/* FIXME: A possible overflow which I don't know how to deal
case M_S_DOB:
gas_assert (!mips_opts.micromips);
- gas_assert (mips_opts.isa == ISA_MIPS1);
+ gas_assert (!CPU_HAS_LDC1_SDC1 (mips_opts.arch));
/* Even on a big endian machine $fn comes before $fn+1. We have
to adjust when storing to memory. */
macro_build (&offset_expr, "swc1", "T,o(b)",
/* Itbl support may require additional care here. */
coproc = 1;
fmt = "T,o(b)";
- if (mips_opts.isa != ISA_MIPS1)
+ if (CPU_HAS_LDC1_SDC1 (mips_opts.arch))
{
s = "ldc1";
goto ld_st;
/* Itbl support may require additional care here. */
coproc = 1;
fmt = "T,o(b)";
- if (mips_opts.isa != ISA_MIPS1)
+ if (CPU_HAS_LDC1_SDC1 (mips_opts.arch))
{
s = "sdc1";
goto ld_st;
s = "swc1";
goto ldd_std;
+ case M_LQ_AB:
+ fmt = "t,o(b)";
+ s = "lq";
+ goto ld;
+
+ case M_SQ_AB:
+ fmt = "t,o(b)";
+ s = "sq";
+ goto ld_st;
+
case M_LD_AB:
fmt = "t,o(b)";
if (HAVE_64BIT_GPRS)
s = "c3";
copz:
gas_assert (!mips_opts.micromips);
- if (NO_ISA_COP (mips_opts.arch)
- && (ip->insn_mo->pinfo2 & INSN2_M_FP_S) == 0)
- {
- as_bad (_("Opcode not supported on this processor: %s"),
- mips_cpu_info_from_arch (mips_opts.arch)->name);
- break;
- }
-
/* For now we just do C (same as Cz). The parameter will be
stored in insn_opcode by mips_ip. */
macro_build (NULL, s, "C", ip->insn_opcode);
case M_DMUL:
dbl = 1;
case M_MUL:
+ if (mips_opts.arch == CPU_R5900)
+ {
+ macro_build (NULL, dbl ? "dmultu" : "multu", "d,s,t", dreg, sreg, treg);
+ }
+ else
+ {
macro_build (NULL, dbl ? "dmultu" : "multu", "s,t", sreg, treg);
macro_build (NULL, "mflo", MFHL_FMT, dreg);
+ }
break;
case M_DMUL_I:
switch (mask)
{
default:
- internalError ();
+ abort ();
case M_DDIV_3:
dbl = 1;
break;
case '.': USE_BITS (OFFSET10); break;
case '1': USE_BITS (STYPE); break;
+ case '2': USE_BITS (BP); break;
+ case '3': USE_BITS (SA3); break;
+ case '4': USE_BITS (SA4); break;
+ case '5': USE_BITS (IMM8); break;
+ case '6': USE_BITS (RS); break;
+ case '7': USE_BITS (DSPACC); break;
+ case '8': USE_BITS (WRDSP); break;
+ case '0': USE_BITS (DSPSFT); break;
case '<': USE_BITS (SHAMT); break;
case '>': USE_BITS (SHAMT); break;
+ case '@': USE_BITS (IMM10); break;
case 'B': USE_BITS (CODE10); break;
case 'C': USE_BITS (COPZ); break;
case 'D': USE_BITS (FD); break;
case 'T': USE_BITS (FT); break;
case 'V': USE_BITS (FS); break;
case '\\': USE_BITS (3BITPOS); break;
+ case '^': USE_BITS (RD); break;
case 'a': USE_BITS (TARGET); break;
case 'b': USE_BITS (RS); break;
case 'c': USE_BITS (CODE); break;
/* Let a macro pass, we'll catch it later when it is expanded. */
return 1;
- if (ISA_HAS_ODD_SINGLE_FPR (mips_opts.isa))
+ if (ISA_HAS_ODD_SINGLE_FPR (mips_opts.isa) || (mips_opts.arch == CPU_R5900))
{
/* Allow odd registers for single-precision ops. */
switch (insn->pinfo & (FP_S | FP_D))
return;
break;
- case '2': /* DSP 2-bit unsigned immediate in bit 11. */
- gas_assert (!mips_opts.micromips);
+ case '2':
+ /* DSP 2-bit unsigned immediate in bit 11 (for standard MIPS
+ code) or 14 (for microMIPS code). */
my_getExpression (&imm_expr, s);
check_absolute_expr (ip, &imm_expr);
if ((unsigned long) imm_expr.X_add_number != 1
as_bad (_("BALIGN immediate not 1 or 3 (%lu)"),
(unsigned long) imm_expr.X_add_number);
}
- INSERT_OPERAND (0, BP, *ip, imm_expr.X_add_number);
+ INSERT_OPERAND (mips_opts.micromips,
+ BP, *ip, imm_expr.X_add_number);
imm_expr.X_op = O_absent;
s = expr_end;
continue;
- case '3': /* DSP 3-bit unsigned immediate in bit 21. */
- gas_assert (!mips_opts.micromips);
- my_getExpression (&imm_expr, s);
- check_absolute_expr (ip, &imm_expr);
- if (imm_expr.X_add_number & ~OP_MASK_SA3)
- {
- as_bad (_("DSP immediate not in range 0..%d (%lu)"),
- OP_MASK_SA3, (unsigned long) imm_expr.X_add_number);
- }
- INSERT_OPERAND (0, SA3, *ip, imm_expr.X_add_number);
- imm_expr.X_op = O_absent;
- s = expr_end;
- continue;
+ case '3':
+ /* DSP 3-bit unsigned immediate in bit 13 (for standard MIPS
+ code) or 21 (for microMIPS code). */
+ {
+ unsigned long mask = (mips_opts.micromips
+ ? MICROMIPSOP_MASK_SA3 : OP_MASK_SA3);
- case '4': /* DSP 4-bit unsigned immediate in bit 21. */
- gas_assert (!mips_opts.micromips);
- my_getExpression (&imm_expr, s);
- check_absolute_expr (ip, &imm_expr);
- if (imm_expr.X_add_number & ~OP_MASK_SA4)
- {
- as_bad (_("DSP immediate not in range 0..%d (%lu)"),
- OP_MASK_SA4, (unsigned long) imm_expr.X_add_number);
- }
- INSERT_OPERAND (0, SA4, *ip, imm_expr.X_add_number);
- imm_expr.X_op = O_absent;
- s = expr_end;
+ my_getExpression (&imm_expr, s);
+ check_absolute_expr (ip, &imm_expr);
+ if ((unsigned long) imm_expr.X_add_number > mask)
+ as_bad (_("DSP immediate not in range 0..%lu (%lu)"),
+ mask, (unsigned long) imm_expr.X_add_number);
+ INSERT_OPERAND (mips_opts.micromips,
+ SA3, *ip, imm_expr.X_add_number);
+ imm_expr.X_op = O_absent;
+ s = expr_end;
+ }
continue;
- case '5': /* DSP 8-bit unsigned immediate in bit 16. */
- gas_assert (!mips_opts.micromips);
- my_getExpression (&imm_expr, s);
- check_absolute_expr (ip, &imm_expr);
- if (imm_expr.X_add_number & ~OP_MASK_IMM8)
- {
- as_bad (_("DSP immediate not in range 0..%d (%lu)"),
- OP_MASK_IMM8, (unsigned long) imm_expr.X_add_number);
- }
- INSERT_OPERAND (0, IMM8, *ip, imm_expr.X_add_number);
- imm_expr.X_op = O_absent;
- s = expr_end;
+ case '4':
+ /* DSP 4-bit unsigned immediate in bit 12 (for standard MIPS
+ code) or 21 (for microMIPS code). */
+ {
+ unsigned long mask = (mips_opts.micromips
+ ? MICROMIPSOP_MASK_SA4 : OP_MASK_SA4);
+
+ my_getExpression (&imm_expr, s);
+ check_absolute_expr (ip, &imm_expr);
+ if ((unsigned long) imm_expr.X_add_number > mask)
+ as_bad (_("DSP immediate not in range 0..%lu (%lu)"),
+ mask, (unsigned long) imm_expr.X_add_number);
+ INSERT_OPERAND (mips_opts.micromips,
+ SA4, *ip, imm_expr.X_add_number);
+ imm_expr.X_op = O_absent;
+ s = expr_end;
+ }
continue;
- case '6': /* DSP 5-bit unsigned immediate in bit 21. */
- gas_assert (!mips_opts.micromips);
- my_getExpression (&imm_expr, s);
- check_absolute_expr (ip, &imm_expr);
- if (imm_expr.X_add_number & ~OP_MASK_RS)
- {
- as_bad (_("DSP immediate not in range 0..%d (%lu)"),
- OP_MASK_RS, (unsigned long) imm_expr.X_add_number);
- }
- INSERT_OPERAND (0, RS, *ip, imm_expr.X_add_number);
- imm_expr.X_op = O_absent;
- s = expr_end;
+ case '5':
+ /* DSP 8-bit unsigned immediate in bit 13 (for standard MIPS
+ code) or 16 (for microMIPS code). */
+ {
+ unsigned long mask = (mips_opts.micromips
+ ? MICROMIPSOP_MASK_IMM8 : OP_MASK_IMM8);
+
+ my_getExpression (&imm_expr, s);
+ check_absolute_expr (ip, &imm_expr);
+ if ((unsigned long) imm_expr.X_add_number > mask)
+ as_bad (_("DSP immediate not in range 0..%lu (%lu)"),
+ mask, (unsigned long) imm_expr.X_add_number);
+ INSERT_OPERAND (mips_opts.micromips,
+ IMM8, *ip, imm_expr.X_add_number);
+ imm_expr.X_op = O_absent;
+ s = expr_end;
+ }
continue;
- case '7': /* Four DSP accumulators in bits 11,12. */
- gas_assert (!mips_opts.micromips);
- if (s[0] == '$' && s[1] == 'a' && s[2] == 'c' &&
- s[3] >= '0' && s[3] <= '3')
+ case '6':
+ /* DSP 5-bit unsigned immediate in bit 16 (for standard MIPS
+ code) or 21 (for microMIPS code). */
+ {
+ unsigned long mask = (mips_opts.micromips
+ ? MICROMIPSOP_MASK_RS : OP_MASK_RS);
+
+ my_getExpression (&imm_expr, s);
+ check_absolute_expr (ip, &imm_expr);
+ if ((unsigned long) imm_expr.X_add_number > mask)
+ as_bad (_("DSP immediate not in range 0..%lu (%lu)"),
+ mask, (unsigned long) imm_expr.X_add_number);
+ INSERT_OPERAND (mips_opts.micromips,
+ RS, *ip, imm_expr.X_add_number);
+ imm_expr.X_op = O_absent;
+ s = expr_end;
+ }
+ continue;
+
+ case '7': /* Four DSP accumulators in bits 11,12. */
+ if (s[0] == '$' && s[1] == 'a' && s[2] == 'c'
+ && s[3] >= '0' && s[3] <= '3')
{
regno = s[3] - '0';
s += 4;
- INSERT_OPERAND (0, DSPACC, *ip, regno);
+ INSERT_OPERAND (mips_opts.micromips, DSPACC, *ip, regno);
continue;
}
else
as_bad (_("Invalid dsp acc register"));
break;
- case '8': /* DSP 6-bit unsigned immediate in bit 11. */
- gas_assert (!mips_opts.micromips);
- my_getExpression (&imm_expr, s);
- check_absolute_expr (ip, &imm_expr);
- if (imm_expr.X_add_number & ~OP_MASK_WRDSP)
- {
- as_bad (_("DSP immediate not in range 0..%d (%lu)"),
- OP_MASK_WRDSP,
- (unsigned long) imm_expr.X_add_number);
- }
- INSERT_OPERAND (0, WRDSP, *ip, imm_expr.X_add_number);
- imm_expr.X_op = O_absent;
- s = expr_end;
+ case '8':
+ /* DSP 6-bit unsigned immediate in bit 11 (for standard MIPS
+ code) or 14 (for microMIPS code). */
+ {
+ unsigned long mask = (mips_opts.micromips
+ ? MICROMIPSOP_MASK_WRDSP
+ : OP_MASK_WRDSP);
+
+ my_getExpression (&imm_expr, s);
+ check_absolute_expr (ip, &imm_expr);
+ if ((unsigned long) imm_expr.X_add_number > mask)
+ as_bad (_("DSP immediate not in range 0..%lu (%lu)"),
+ mask, (unsigned long) imm_expr.X_add_number);
+ INSERT_OPERAND (mips_opts.micromips,
+ WRDSP, *ip, imm_expr.X_add_number);
+ imm_expr.X_op = O_absent;
+ s = expr_end;
+ }
continue;
case '9': /* Four DSP accumulators in bits 21,22. */
gas_assert (!mips_opts.micromips);
- if (s[0] == '$' && s[1] == 'a' && s[2] == 'c' &&
- s[3] >= '0' && s[3] <= '3')
+ if (s[0] == '$' && s[1] == 'a' && s[2] == 'c'
+ && s[3] >= '0' && s[3] <= '3')
{
regno = s[3] - '0';
s += 4;
as_bad (_("Invalid dsp acc register"));
break;
- case '0': /* DSP 6-bit signed immediate in bit 20. */
- gas_assert (!mips_opts.micromips);
- my_getExpression (&imm_expr, s);
- check_absolute_expr (ip, &imm_expr);
- min_range = -((OP_MASK_DSPSFT + 1) >> 1);
- max_range = ((OP_MASK_DSPSFT + 1) >> 1) - 1;
- if (imm_expr.X_add_number < min_range ||
- imm_expr.X_add_number > max_range)
- {
+ case '0':
+ /* DSP 6-bit signed immediate in bit 16 (for standard MIPS
+ code) or 20 (for microMIPS code). */
+ {
+ long mask = (mips_opts.micromips
+ ? MICROMIPSOP_MASK_DSPSFT : OP_MASK_DSPSFT);
+
+ my_getExpression (&imm_expr, s);
+ check_absolute_expr (ip, &imm_expr);
+ min_range = -((mask + 1) >> 1);
+ max_range = ((mask + 1) >> 1) - 1;
+ if (imm_expr.X_add_number < min_range
+ || imm_expr.X_add_number > max_range)
as_bad (_("DSP immediate not in range %ld..%ld (%ld)"),
(long) min_range, (long) max_range,
(long) imm_expr.X_add_number);
- }
- INSERT_OPERAND (0, DSPSFT, *ip, imm_expr.X_add_number);
- imm_expr.X_op = O_absent;
- s = expr_end;
+ INSERT_OPERAND (mips_opts.micromips,
+ DSPSFT, *ip, imm_expr.X_add_number);
+ imm_expr.X_op = O_absent;
+ s = expr_end;
+ }
continue;
case '\'': /* DSP 6-bit unsigned immediate in bit 16. */
continue;
case '@': /* DSP 10-bit signed immediate in bit 16. */
- gas_assert (!mips_opts.micromips);
- my_getExpression (&imm_expr, s);
- check_absolute_expr (ip, &imm_expr);
- min_range = -((OP_MASK_IMM10 + 1) >> 1);
- max_range = ((OP_MASK_IMM10 + 1) >> 1) - 1;
- if (imm_expr.X_add_number < min_range ||
- imm_expr.X_add_number > max_range)
- {
+ {
+ long mask = (mips_opts.micromips
+ ? MICROMIPSOP_MASK_IMM10 : OP_MASK_IMM10);
+
+ my_getExpression (&imm_expr, s);
+ check_absolute_expr (ip, &imm_expr);
+ min_range = -((mask + 1) >> 1);
+ max_range = ((mask + 1) >> 1) - 1;
+ if (imm_expr.X_add_number < min_range
+ || imm_expr.X_add_number > max_range)
as_bad (_("DSP immediate not in range %ld..%ld (%ld)"),
(long) min_range, (long) max_range,
(long) imm_expr.X_add_number);
- }
- INSERT_OPERAND (0, IMM10, *ip, imm_expr.X_add_number);
+ INSERT_OPERAND (mips_opts.micromips,
+ IMM10, *ip, imm_expr.X_add_number);
+ imm_expr.X_op = O_absent;
+ s = expr_end;
+ }
+ continue;
+
+ case '^': /* DSP 5-bit unsigned immediate in bit 11. */
+ gas_assert (mips_opts.micromips);
+ my_getExpression (&imm_expr, s);
+ check_absolute_expr (ip, &imm_expr);
+ if (imm_expr.X_add_number & ~MICROMIPSOP_MASK_RD)
+ as_bad (_("DSP immediate not in range 0..%d (%lu)"),
+ MICROMIPSOP_MASK_RD,
+ (unsigned long) imm_expr.X_add_number);
+ INSERT_OPERAND (1, RD, *ip, imm_expr.X_add_number);
imm_expr.X_op = O_absent;
s = expr_end;
continue;
while (imm->type && imm->type != *args)
++imm;
if (! imm->type)
- internalError ();
+ abort ();
my_getExpression (&imm_expr, s);
check_absolute_expr (ip, &imm_expr);
if ((unsigned long) imm_expr.X_add_number & ~imm->mask)
if (imm_expr.X_add_number != 0 && imm_expr.X_add_number != 1)
as_warn (_("Invalid performance register (%lu)"),
(unsigned long) imm_expr.X_add_number);
+ if (imm_expr.X_add_number != 0 && mips_opts.arch == CPU_R5900
+ && (!strcmp(insn->name,"mfps") || !strcmp(insn->name,"mtps")))
+ as_warn (_("Invalid performance register (%lu)"),
+ (unsigned long) imm_expr.X_add_number);
INSERT_OPERAND (0, PERFREG, *ip, imm_expr.X_add_number);
imm_expr.X_op = O_absent;
s = expr_end;
continue;
case 'u': /* Upper 16 bits. */
+ *imm_reloc = BFD_RELOC_LO16;
if (my_getSmallExpression (&imm_expr, imm_reloc, s) == 0
&& imm_expr.X_op == O_constant
&& (imm_expr.X_add_number < 0
break;
default:
- internalError ();
+ abort ();
}
if (regno == ILLEGAL_REG)
break;
default:
- internalError ();
+ abort ();
}
continue;
default:
as_bad (_("Bad char = '%c'\n"), *args);
- internalError ();
+ abort ();
}
break;
}
case '\0':
if (*s == '\0')
{
+ offsetT value;
+
/* Stuff the immediate value in now, if we can. */
if (imm_expr.X_op == O_constant
&& *imm_reloc > BFD_RELOC_UNUSED
- && *imm_reloc != BFD_RELOC_MIPS16_GOT16
- && *imm_reloc != BFD_RELOC_MIPS16_CALL16
- && insn->pinfo != INSN_MACRO)
+ && insn->pinfo != INSN_MACRO
+ && calculate_reloc (*offset_reloc,
+ imm_expr.X_add_number, &value))
{
- valueT tmp;
-
- switch (*offset_reloc)
- {
- case BFD_RELOC_MIPS16_HI16_S:
- tmp = (imm_expr.X_add_number + 0x8000) >> 16;
- break;
-
- case BFD_RELOC_MIPS16_HI16:
- tmp = imm_expr.X_add_number >> 16;
- break;
-
- case BFD_RELOC_MIPS16_LO16:
- tmp = ((imm_expr.X_add_number + 0x8000) & 0xffff)
- - 0x8000;
- break;
-
- case BFD_RELOC_UNUSED:
- tmp = imm_expr.X_add_number;
- break;
-
- default:
- internalError ();
- }
- *offset_reloc = BFD_RELOC_UNUSED;
-
mips16_immed (NULL, 0, *imm_reloc - BFD_RELOC_UNUSED,
- tmp, TRUE, forced_insn_length == 2,
- forced_insn_length == 4, &ip->insn_opcode,
- &ip->use_extend, &ip->extend);
+ *offset_reloc, value, forced_insn_length,
+ &ip->insn_opcode);
imm_expr.X_op = O_absent;
*imm_reloc = BFD_RELOC_UNUSED;
+ *offset_reloc = BFD_RELOC_UNUSED;
}
return;
break;
default:
- internalError ();
+ abort ();
}
if (regno == ILLEGAL_REG)
MIPS16_INSERT_OPERAND (REG32R, *ip, regno);
break;
default:
- internalError ();
+ abort ();
}
lastregno = regno;
if (imm_expr.X_op != O_constant)
{
forced_insn_length = 4;
- ip->use_extend = TRUE;
- ip->extend = 0;
+ ip->insn_opcode |= MIPS16_EXTEND;
}
else
{
case 'm': /* Register list for save insn. */
case 'M': /* Register list for restore insn. */
{
- int opcode = 0;
+ int opcode = ip->insn_opcode;
int framesz = 0, seen_framesz = 0;
int nargs = 0, statics = 0, sregs = 0;
/* Finally build the instruction. */
if ((opcode >> 16) != 0 || framesz == 0)
- {
- ip->use_extend = TRUE;
- ip->extend = opcode >> 16;
- }
- ip->insn_opcode |= opcode & 0x7f;
+ opcode |= MIPS16_EXTEND;
+ ip->insn_opcode = opcode;
}
continue;
continue;
default:
- internalError ();
+ abort ();
}
break;
}
#define MIPS16_NUM_IMMED \
(sizeof mips16_immed_operands / sizeof mips16_immed_operands[0])
-/* Handle a mips16 instruction with an immediate value. This or's the
- small immediate value into *INSN. It sets *USE_EXTEND to indicate
- whether an extended value is needed; if one is needed, it sets
- *EXTEND to the value. The argument type is TYPE. The value is VAL.
- If SMALL is true, an unextended opcode was explicitly requested.
- If EXT is true, an extended opcode was explicitly requested. If
- WARN is true, warn if EXT does not match reality. */
+/* Marshal immediate value VAL for an extended MIPS16 instruction.
+ NBITS is the number of significant bits in VAL. */
+
+static unsigned long
+mips16_immed_extend (offsetT val, unsigned int nbits)
+{
+ int extval;
+ if (nbits == 16)
+ {
+ extval = ((val >> 11) & 0x1f) | (val & 0x7e0);
+ val &= 0x1f;
+ }
+ else if (nbits == 15)
+ {
+ extval = ((val >> 11) & 0xf) | (val & 0x7f0);
+ val &= 0xf;
+ }
+ else
+ {
+ extval = ((val & 0x1f) << 6) | (val & 0x20);
+ val = 0;
+ }
+ return (extval << 16) | val;
+}
+
+/* Install immediate value VAL into MIPS16 instruction *INSN,
+ extending it if necessary. The instruction in *INSN may
+ already be extended.
+
+ RELOC is the relocation that produced VAL, or BFD_RELOC_UNUSED
+ if none. In the former case, VAL is a 16-bit number with no
+ defined signedness.
+
+ TYPE is the type of the immediate field. USER_INSN_LENGTH
+ is the length that the user requested, or 0 if none. */
static void
-mips16_immed (char *file, unsigned int line, int type, offsetT val,
- bfd_boolean warn, bfd_boolean small, bfd_boolean ext,
- unsigned long *insn, bfd_boolean *use_extend,
- unsigned short *extend)
+mips16_immed (char *file, unsigned int line, int type,
+ bfd_reloc_code_real_type reloc, offsetT val,
+ unsigned int user_insn_length, unsigned long *insn)
{
const struct mips16_immed_operand *op;
int mintiny, maxtiny;
- bfd_boolean needext;
op = mips16_immed_operands;
while (op->type != type)
mintiny = 0;
maxtiny = (1 << op->nbits) - 1;
}
+ if (reloc != BFD_RELOC_UNUSED)
+ val &= 0xffff;
}
else
{
mintiny = - (1 << (op->nbits - 1));
maxtiny = (1 << (op->nbits - 1)) - 1;
+ if (reloc != BFD_RELOC_UNUSED)
+ val = SEXT_16BIT (val);
}
/* Branch offsets have an implicit 0 in the lowest bit. */
if ((val & ((1 << op->shift) - 1)) != 0
|| val < (mintiny << op->shift)
|| val > (maxtiny << op->shift))
- needext = TRUE;
- else
- needext = FALSE;
-
- if (warn && ext && ! needext)
- as_warn_where (file, line,
- _("extended operand requested but not required"));
- if (small && needext)
- as_bad_where (file, line, _("invalid unextended operand value"));
+ {
+ /* We need an extended instruction. */
+ if (user_insn_length == 2)
+ as_bad_where (file, line, _("invalid unextended operand value"));
+ else
+ *insn |= MIPS16_EXTEND;
+ }
+ else if (user_insn_length == 4)
+ {
+ /* The operand doesn't force an unextended instruction to be extended.
+ Warn if the user wanted an extended instruction anyway. */
+ *insn |= MIPS16_EXTEND;
+ as_warn_where (file, line,
+ _("extended operand requested but not required"));
+ }
- if (small || (! ext && ! needext))
+ if (mips16_opcode_length (*insn) == 2)
{
int insnval;
- *use_extend = FALSE;
insnval = ((val >> op->shift) & ((1 << op->nbits) - 1));
insnval <<= op->op_shift;
*insn |= insnval;
else
{
long minext, maxext;
- int extval;
- if (op->extu)
+ if (reloc == BFD_RELOC_UNUSED)
{
- minext = 0;
- maxext = (1 << op->extbits) - 1;
- }
- else
- {
- minext = - (1 << (op->extbits - 1));
- maxext = (1 << (op->extbits - 1)) - 1;
- }
- if (val < minext || val > maxext)
- as_bad_where (file, line,
- _("operand value out of range for instruction"));
-
- *use_extend = TRUE;
- if (op->extbits == 16)
- {
- extval = ((val >> 11) & 0x1f) | (val & 0x7e0);
- val &= 0x1f;
- }
- else if (op->extbits == 15)
- {
- extval = ((val >> 11) & 0xf) | (val & 0x7f0);
- val &= 0xf;
- }
- else
- {
- extval = ((val & 0x1f) << 6) | (val & 0x20);
- val = 0;
+ if (op->extu)
+ {
+ minext = 0;
+ maxext = (1 << op->extbits) - 1;
+ }
+ else
+ {
+ minext = - (1 << (op->extbits - 1));
+ maxext = (1 << (op->extbits - 1)) - 1;
+ }
+ if (val < minext || val > maxext)
+ as_bad_where (file, line,
+ _("operand value out of range for instruction"));
}
- *extend = (unsigned short) extval;
- *insn |= val;
+ *insn |= mips16_immed_extend (val, op->extbits);
}
}
\f
}
if (arch_info == 0)
- arch_info = mips_parse_cpu ("default CPU", MIPS_CPU_STRING_DEFAULT);
+ {
+ arch_info = mips_parse_cpu ("default CPU", MIPS_CPU_STRING_DEFAULT);
+ gas_assert (arch_info);
+ }
if (ABI_NEEDS_64BIT_REGS (mips_abi) && !ISA_HAS_64BIT_REGS (arch_info->isa))
as_bad (_("-march=%s is not compatible with the selected ABI"),
gas_assert (reloc_needs_lo_p (l->fixp->fx_r_type));
/* If a GOT16 relocation turns out to be against a global symbol,
- there isn't supposed to be a matching LO. */
+ there isn't supposed to be a matching LO. Ignore %gots against
+ constants; we'll report an error for those later. */
if (got16_reloc_p (l->fixp->fx_r_type)
- && !pic_need_relax (l->fixp->fx_addsy, l->seg))
+ && !(l->fixp->fx_addsy
+ && pic_need_relax (l->fixp->fx_addsy, l->seg)))
continue;
/* Check quickly whether the next fixup happens to be a matching %lo. */
}
}
-/* We may have combined relocations without symbols in the N32/N64 ABI.
- We have to prevent gas from dropping them. */
-
int
mips_force_relocation (fixS *fixp)
{
|| fixp->fx_r_type == BFD_RELOC_MICROMIPS_16_PCREL_S1)
return 1;
- if (HAVE_NEWABI
- && S_GET_SEGMENT (fixp->fx_addsy) == bfd_abs_section_ptr
- && (fixp->fx_r_type == BFD_RELOC_MIPS_SUB
- || hi16_reloc_p (fixp->fx_r_type)
- || lo16_reloc_p (fixp->fx_r_type)))
- return 1;
-
return 0;
}
+/* Read the instruction associated with RELOC from BUF. */
+
+static unsigned int
+read_reloc_insn (char *buf, bfd_reloc_code_real_type reloc)
+{
+ if (mips16_reloc_p (reloc) || micromips_reloc_p (reloc))
+ return read_compressed_insn (buf, 4);
+ else
+ return read_insn (buf);
+}
+
+/* Write instruction INSN to BUF, given that it has been relocated
+ by RELOC. */
+
+static void
+write_reloc_insn (char *buf, bfd_reloc_code_real_type reloc,
+ unsigned long insn)
+{
+ if (mips16_reloc_p (reloc) || micromips_reloc_p (reloc))
+ write_compressed_insn (buf, insn, 4);
+ else
+ write_insn (buf, insn);
+}
+
/* Apply a fixup to the object file. */
void
md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
{
- bfd_byte *buf;
- long insn;
+ char *buf;
+ unsigned long insn;
reloc_howto_type *howto;
/* We ignore generic BFD relocations we don't know about. */
|| fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY
|| fixP->fx_r_type == BFD_RELOC_MIPS_TLS_DTPREL64);
- buf = (bfd_byte *) (fixP->fx_frag->fr_literal + fixP->fx_where);
+ buf = fixP->fx_frag->fr_literal + fixP->fx_where;
gas_assert (!fixP->fx_pcrel || fixP->fx_r_type == BFD_RELOC_16_PCREL_S2
|| fixP->fx_r_type == BFD_RELOC_MICROMIPS_7_PCREL_S1
case BFD_RELOC_MIPS16_TLS_GOTTPREL:
case BFD_RELOC_MIPS16_TLS_TPREL_HI16:
case BFD_RELOC_MIPS16_TLS_TPREL_LO16:
+ if (!fixP->fx_addsy)
+ {
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("TLS relocation against a constant"));
+ break;
+ }
S_SET_THREAD_LOCAL (fixP->fx_addsy);
/* fall through */
case BFD_RELOC_MIPS_JALR:
case BFD_RELOC_HI16:
case BFD_RELOC_HI16_S:
+ case BFD_RELOC_LO16:
case BFD_RELOC_GPREL16:
case BFD_RELOC_MIPS_LITERAL:
case BFD_RELOC_MIPS_CALL16:
case BFD_RELOC_MIPS16_CALL16:
case BFD_RELOC_MIPS16_HI16:
case BFD_RELOC_MIPS16_HI16_S:
+ case BFD_RELOC_MIPS16_LO16:
case BFD_RELOC_MIPS16_JMP:
case BFD_RELOC_MICROMIPS_JMP:
case BFD_RELOC_MICROMIPS_GOT_DISP:
case BFD_RELOC_MICROMIPS_JALR:
case BFD_RELOC_MICROMIPS_HI16:
case BFD_RELOC_MICROMIPS_HI16_S:
+ case BFD_RELOC_MICROMIPS_LO16:
case BFD_RELOC_MICROMIPS_GPREL16:
case BFD_RELOC_MICROMIPS_LITERAL:
case BFD_RELOC_MICROMIPS_CALL16:
case BFD_RELOC_MICROMIPS_GOT_LO16:
case BFD_RELOC_MICROMIPS_CALL_HI16:
case BFD_RELOC_MICROMIPS_CALL_LO16:
- /* Nothing needed to do. The value comes from the reloc entry. */
+ if (fixP->fx_done)
+ {
+ offsetT value;
+
+ if (calculate_reloc (fixP->fx_r_type, *valP, &value))
+ {
+ insn = read_reloc_insn (buf, fixP->fx_r_type);
+ if (mips16_reloc_p (fixP->fx_r_type))
+ insn |= mips16_immed_extend (value, 16);
+ else
+ insn |= (value & 0xffff);
+ write_reloc_insn (buf, fixP->fx_r_type, insn);
+ }
+ else
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("Unsupported constant in relocation"));
+ }
break;
case BFD_RELOC_64:
if (fixP->fx_done)
{
if (8 <= sizeof (valueT))
- md_number_to_chars ((char *) buf, *valP, 8);
+ md_number_to_chars (buf, *valP, 8);
else
{
valueT hiv;
hiv = 0xffffffff;
else
hiv = 0;
- md_number_to_chars ((char *)(buf + (target_big_endian ? 4 : 0)),
- *valP, 4);
- md_number_to_chars ((char *)(buf + (target_big_endian ? 0 : 4)),
- hiv, 4);
+ md_number_to_chars (buf + (target_big_endian ? 4 : 0), *valP, 4);
+ md_number_to_chars (buf + (target_big_endian ? 0 : 4), hiv, 4);
}
}
break;
value now. This can happen if we have a .word which is not
resolved when it appears but is later defined. */
if (fixP->fx_done)
- md_number_to_chars ((char *) buf, *valP, fixP->fx_size);
- break;
-
- case BFD_RELOC_LO16:
- case BFD_RELOC_MIPS16_LO16:
- case BFD_RELOC_MICROMIPS_LO16:
- /* FIXME: Now that embedded-PIC is gone, some of this code/comment
- may be safe to remove, but if so it's not obvious. */
- /* When handling an embedded PIC switch statement, we can wind
- up deleting a LO16 reloc. See the 'o' case in mips_ip. */
- if (fixP->fx_done)
- {
- if (*valP + 0x8000 > 0xffff)
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("relocation overflow"));
- /* 32-bit microMIPS instructions are divided into two halfwords.
- Relocations always refer to the second halfword, regardless
- of endianness. */
- if (target_big_endian || fixP->fx_r_type == BFD_RELOC_MICROMIPS_LO16)
- buf += 2;
- md_number_to_chars ((char *) buf, *valP, 2);
- }
+ md_number_to_chars (buf, *valP, fixP->fx_size);
break;
case BFD_RELOC_16_PCREL_S2:
break;
/* Update old instruction data. */
- if (target_big_endian)
- insn = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
- else
- insn = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0];
+ insn = read_insn (buf);
if (*valP + 0x20000 <= 0x3ffff)
{
insn |= (*valP >> 2) & 0xffff;
- md_number_to_chars ((char *) buf, insn, 4);
+ write_insn (buf, insn);
}
else if (mips_pic == NO_PIC
&& fixP->fx_done
fixP->fx_done = 0;
fixP->fx_addsy = section_symbol (text_section);
*valP += md_pcrel_from (fixP);
- md_number_to_chars ((char *) buf, insn, 4);
+ write_insn (buf, insn);
}
else
{
break;
default:
- internalError ();
+ abort ();
}
/* Remember value for tc_gen_reloc. */
case ISA_MIPS64:
case ISA_MIPS64R2:
mips_opts.gp32 = 0;
+ if (mips_opts.arch == CPU_R5900)
+ {
+ mips_opts.fp32 = 1;
+ }
+ else
+ {
mips_opts.fp32 = 0;
+ }
break;
default:
as_bad (_("unknown ISA level %s"), name + 4);
return;
}
+ if (mips_opts.mips16)
+ {
+ as_bad (_("%s not supported in MIPS16 mode"), ".cpload");
+ ignore_rest_of_line ();
+ return;
+ }
+
/* .cpload should be in a .set noreorder section. */
if (mips_opts.noreorder == 0)
as_warn (_(".cpload not in noreorder section"));
/* In ELF, this symbol is implicitly an STT_OBJECT symbol. */
symbol_get_bfdsym (ex.X_add_symbol)->flags |= BSF_OBJECT;
+ mips_mark_labels ();
+ mips_assembling_insn = TRUE;
+
macro_start ();
macro_build_lui (&ex, mips_gp_register);
macro_build (&ex, "addiu", "t,r,j", mips_gp_register,
mips_gp_register, reg);
macro_end ();
+ mips_assembling_insn = FALSE;
demand_empty_rest_of_line ();
}
return;
}
+ if (mips_opts.mips16)
+ {
+ as_bad (_("%s not supported in MIPS16 mode"), ".cpsetup");
+ ignore_rest_of_line ();
+ return;
+ }
+
reg1 = tc_get_register (0);
SKIP_WHITESPACE ();
if (*input_line_pointer != ',')
SKIP_WHITESPACE ();
expression (&ex_sym);
+ mips_mark_labels ();
+ mips_assembling_insn = TRUE;
+
macro_start ();
if (mips_cpreturn_register == -1)
{
macro_end ();
+ mips_assembling_insn = FALSE;
demand_empty_rest_of_line ();
}
return;
}
+ if (mips_opts.mips16)
+ {
+ as_bad (_("%s not supported in MIPS16 mode"), ".cplocal");
+ ignore_rest_of_line ();
+ return;
+ }
+
mips_gp_register = tc_get_register (0);
demand_empty_rest_of_line ();
}
return;
}
+ if (mips_opts.mips16)
+ {
+ as_bad (_("%s not supported in MIPS16 mode"), ".cprestore");
+ ignore_rest_of_line ();
+ return;
+ }
+
mips_cprestore_offset = get_absolute_expression ();
mips_cprestore_valid = 1;
ex.X_op_symbol = NULL;
ex.X_add_number = mips_cprestore_offset;
+ mips_mark_labels ();
+ mips_assembling_insn = TRUE;
+
macro_start ();
macro_build_ldst_constoffset (&ex, ADDRESS_STORE_INSN, mips_gp_register,
SP, HAVE_64BIT_ADDRESSES);
macro_end ();
+ mips_assembling_insn = FALSE;
demand_empty_rest_of_line ();
}
return;
}
+ if (mips_opts.mips16)
+ {
+ as_bad (_("%s not supported in MIPS16 mode"), ".cpreturn");
+ ignore_rest_of_line ();
+ return;
+ }
+
+ mips_mark_labels ();
+ mips_assembling_insn = TRUE;
+
macro_start ();
if (mips_cpreturn_register == -1)
{
mips_cpreturn_register, 0);
macro_end ();
+ mips_assembling_insn = FALSE;
demand_empty_rest_of_line ();
}
return;
}
+ mips_mark_labels ();
+ mips_assembling_insn = TRUE;
+
/* Add $gp to the register named as an argument. */
macro_start ();
reg = tc_get_register (0);
macro_build (NULL, ADDRESS_ADD_INSN, "d,v,t", reg, reg, mips_gp_register);
macro_end ();
+ mips_assembling_insn = FALSE;
demand_empty_rest_of_line ();
}
symsec = S_GET_SEGMENT (sym);
/* This must duplicate the test in adjust_reloc_syms. */
- return (symsec != &bfd_und_section
- && symsec != &bfd_abs_section
+ return (!bfd_is_und_section (symsec)
+ && !bfd_is_abs_section (symsec)
&& !bfd_is_com_section (symsec)
&& !s_is_linkonce (sym, segtype)
#ifdef OBJ_ELF
{
if (RELAX_BRANCH_P (fragp->fr_subtype))
{
- bfd_byte *buf;
+ char *buf;
unsigned long insn;
expressionS exp;
fixS *fixp;
- buf = (bfd_byte *)fragp->fr_literal + fragp->fr_fix;
-
- if (target_big_endian)
- insn = bfd_getb32 (buf);
- else
- insn = bfd_getl32 (buf);
+ buf = fragp->fr_literal + fragp->fr_fix;
+ insn = read_insn (buf);
if (!RELAX_BRANCH_TOOFAR (fragp->fr_subtype))
{
exp.X_add_symbol = fragp->fr_symbol;
exp.X_add_number = fragp->fr_offset;
- fixp = fix_new_exp (fragp, buf - (bfd_byte *)fragp->fr_literal,
- 4, &exp, TRUE, BFD_RELOC_16_PCREL_S2);
+ fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, TRUE,
+ BFD_RELOC_16_PCREL_S2);
fixp->fx_file = fragp->fr_file;
fixp->fx_line = fragp->fr_line;
- md_number_to_chars ((char *) buf, insn, 4);
- buf += 4;
+ buf = write_insn (buf, insn);
}
else
{
else
{
/* How many bytes in instructions we've already emitted? */
- i = buf - (bfd_byte *)fragp->fr_literal - fragp->fr_fix;
+ i = buf - fragp->fr_literal - fragp->fr_fix;
/* How many bytes in instructions from here to the end? */
i = fragp->fr_var - i;
}
i--;
insn |= i;
/* Branch over the jump. */
- md_number_to_chars ((char *) buf, insn, 4);
- buf += 4;
+ buf = write_insn (buf, insn);
/* nop */
- md_number_to_chars ((char *) buf, 0, 4);
- buf += 4;
+ buf = write_insn (buf, 0);
if (RELAX_BRANCH_LIKELY (fragp->fr_subtype))
{
/* Compute the PC offset from the current instruction to
the end of the variable frag. */
/* How many bytes in instructions we've already emitted? */
- i = buf - (bfd_byte *)fragp->fr_literal - fragp->fr_fix;
+ i = buf - fragp->fr_literal - fragp->fr_fix;
/* How many bytes in instructions from here to the end? */
i = fragp->fr_var - i;
/* Convert to instruction count. */
i >>= 2;
/* Don't decrement i, because we want to branch over the
delay slot. */
-
insn |= i;
- md_number_to_chars ((char *) buf, insn, 4);
- buf += 4;
- md_number_to_chars ((char *) buf, 0, 4);
- buf += 4;
+ buf = write_insn (buf, insn);
+ buf = write_insn (buf, 0);
}
uncond:
exp.X_add_symbol = fragp->fr_symbol;
exp.X_add_number = fragp->fr_offset;
- fixp = fix_new_exp (fragp, buf - (bfd_byte *)fragp->fr_literal,
- 4, &exp, FALSE, BFD_RELOC_MIPS_JMP);
+ fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp,
+ FALSE, BFD_RELOC_MIPS_JMP);
fixp->fx_file = fragp->fr_file;
fixp->fx_line = fragp->fr_line;
- md_number_to_chars ((char *) buf, insn, 4);
- buf += 4;
+ buf = write_insn (buf, insn);
}
else
{
exp.X_add_number = 0;
}
- fixp = fix_new_exp (fragp, buf - (bfd_byte *)fragp->fr_literal,
- 4, &exp, FALSE, BFD_RELOC_MIPS_GOT16);
+ fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp,
+ FALSE, BFD_RELOC_MIPS_GOT16);
fixp->fx_file = fragp->fr_file;
fixp->fx_line = fragp->fr_line;
- md_number_to_chars ((char *) buf, insn, 4);
- buf += 4;
+ buf = write_insn (buf, insn);
if (mips_opts.isa == ISA_MIPS1)
- {
- /* nop */
- md_number_to_chars ((char *) buf, 0, 4);
- buf += 4;
- }
+ /* nop */
+ buf = write_insn (buf, 0);
/* d/addiu $at, $at, <sym> R_MIPS_LO16 */
insn = HAVE_64BIT_ADDRESSES ? 0x64000000 : 0x24000000;
insn |= at << OP_SH_RS | at << OP_SH_RT;
- fixp = fix_new_exp (fragp, buf - (bfd_byte *)fragp->fr_literal,
- 4, &exp, FALSE, BFD_RELOC_LO16);
+ fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp,
+ FALSE, BFD_RELOC_LO16);
fixp->fx_file = fragp->fr_file;
fixp->fx_line = fragp->fr_line;
- md_number_to_chars ((char *) buf, insn, 4);
- buf += 4;
+ buf = write_insn (buf, insn);
/* j(al)r $at. */
if (RELAX_BRANCH_LINK (fragp->fr_subtype))
insn = 0x00000008;
insn |= at << OP_SH_RS;
- md_number_to_chars ((char *) buf, insn, 4);
- buf += 4;
+ buf = write_insn (buf, insn);
}
}
- gas_assert (buf == (bfd_byte *)fragp->fr_literal
- + fragp->fr_fix + fragp->fr_var);
-
fragp->fr_fix += fragp->fr_var;
-
+ gas_assert (buf == fragp->fr_literal + fragp->fr_fix);
return;
}
/* Relax microMIPS branches. */
if (RELAX_MICROMIPS_P (fragp->fr_subtype))
{
- bfd_byte *buf = (bfd_byte *) (fragp->fr_literal + fragp->fr_fix);
+ char *buf = fragp->fr_literal + fragp->fr_fix;
bfd_boolean compact = RELAX_MICROMIPS_COMPACT (fragp->fr_subtype);
bfd_boolean al = RELAX_MICROMIPS_LINK (fragp->fr_subtype);
int type = RELAX_MICROMIPS_TYPE (fragp->fr_subtype);
because if there is linker relaxation, we're going to
need the relocations. */
if (type == 'D')
- fixp = fix_new_exp (fragp,
- buf - (bfd_byte *) fragp->fr_literal,
- 2, &exp, TRUE,
+ fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 2, &exp, TRUE,
BFD_RELOC_MICROMIPS_10_PCREL_S1);
else if (type == 'E')
- fixp = fix_new_exp (fragp,
- buf - (bfd_byte *) fragp->fr_literal,
- 2, &exp, TRUE,
+ fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 2, &exp, TRUE,
BFD_RELOC_MICROMIPS_7_PCREL_S1);
else
abort ();
/* We generate a fixup instead of applying it right now,
because if there is linker relaxation, we're going to
need the relocations. */
- fixp = fix_new_exp (fragp, buf - (bfd_byte *) fragp->fr_literal,
- 4, &exp, TRUE, BFD_RELOC_MICROMIPS_16_PCREL_S1);
+ fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, TRUE,
+ BFD_RELOC_MICROMIPS_16_PCREL_S1);
fixp->fx_file = fragp->fr_file;
fixp->fx_line = fragp->fr_line;
/* Relax 16-bit branches to 32-bit branches. */
if (type != 0)
{
- if (target_big_endian)
- insn = bfd_getb16 (buf);
- else
- insn = bfd_getl16 (buf);
+ insn = read_compressed_insn (buf, 2);
if ((insn & 0xfc00) == 0xcc00) /* b16 */
insn = 0x94000000; /* beq */
if (!RELAX_MICROMIPS_RELAX32 (fragp->fr_subtype)
|| !RELAX_MICROMIPS_TOOFAR32 (fragp->fr_subtype))
{
- md_number_to_chars ((char *) buf, insn >> 16, 2);
- buf += 2;
- md_number_to_chars ((char *) buf, insn & 0xffff, 2);
- buf += 2;
-
- gas_assert (buf == ((bfd_byte *) fragp->fr_literal
- + fragp->fr_fix));
+ buf = write_compressed_insn (buf, insn, 4);
+ gas_assert (buf == fragp->fr_literal + fragp->fr_fix);
return;
}
}
else
- {
- unsigned long next;
-
- if (target_big_endian)
- {
- insn = bfd_getb16 (buf);
- next = bfd_getb16 (buf + 2);
- }
- else
- {
- insn = bfd_getl16 (buf);
- next = bfd_getl16 (buf + 2);
- }
- insn = (insn << 16) | next;
- }
+ insn = read_compressed_insn (buf, 4);
/* Relax 32-bit branches to a sequence of instructions. */
as_warn_where (fragp->fr_file, fragp->fr_line,
#endif
/* Refer to it. */
- fixp = fix_new (fragp, buf - (bfd_byte *) fragp->fr_literal,
- 4, l, 0, TRUE, BFD_RELOC_MICROMIPS_16_PCREL_S1);
+ fixp = fix_new (fragp, buf - fragp->fr_literal, 4, l, 0, TRUE,
+ BFD_RELOC_MICROMIPS_16_PCREL_S1);
fixp->fx_file = fragp->fr_file;
fixp->fx_line = fragp->fr_line;
/* Branch over the jump. */
- md_number_to_chars ((char *) buf, insn >> 16, 2);
- buf += 2;
- md_number_to_chars ((char *) buf, insn & 0xffff, 2);
- buf += 2;
-
+ buf = write_compressed_insn (buf, insn, 4);
if (!compact)
- {
- /* nop */
- insn = 0x0c00;
- md_number_to_chars ((char *) buf, insn, 2);
- buf += 2;
- }
+ /* nop */
+ buf = write_compressed_insn (buf, 0x0c00, 2);
}
if (mips_pic == NO_PIC)
/* j/jal/jals <sym> R_MICROMIPS_26_S1 */
insn = al ? jal : 0xd4000000;
- fixp = fix_new_exp (fragp, buf - (bfd_byte *) fragp->fr_literal,
- 4, &exp, FALSE, BFD_RELOC_MICROMIPS_JMP);
+ fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, FALSE,
+ BFD_RELOC_MICROMIPS_JMP);
fixp->fx_file = fragp->fr_file;
fixp->fx_line = fragp->fr_line;
- md_number_to_chars ((char *) buf, insn >> 16, 2);
- buf += 2;
- md_number_to_chars ((char *) buf, insn & 0xffff, 2);
- buf += 2;
-
+ buf = write_compressed_insn (buf, insn, 4);
if (compact)
- {
- /* nop */
- insn = 0x0c00;
- md_number_to_chars ((char *) buf, insn, 2);
- buf += 2;
- }
+ /* nop */
+ buf = write_compressed_insn (buf, 0x0c00, 2);
}
else
{
exp.X_add_number = 0;
}
- fixp = fix_new_exp (fragp, buf - (bfd_byte *) fragp->fr_literal,
- 4, &exp, FALSE, BFD_RELOC_MICROMIPS_GOT16);
+ fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, FALSE,
+ BFD_RELOC_MICROMIPS_GOT16);
fixp->fx_file = fragp->fr_file;
fixp->fx_line = fragp->fr_line;
- md_number_to_chars ((char *) buf, insn >> 16, 2);
- buf += 2;
- md_number_to_chars ((char *) buf, insn & 0xffff, 2);
- buf += 2;
+ buf = write_compressed_insn (buf, insn, 4);
/* d/addiu $at, $at, <sym> R_MICROMIPS_LO16 */
insn = HAVE_64BIT_ADDRESSES ? 0x5c000000 : 0x30000000;
insn |= at << MICROMIPSOP_SH_RT | at << MICROMIPSOP_SH_RS;
- fixp = fix_new_exp (fragp, buf - (bfd_byte *) fragp->fr_literal,
- 4, &exp, FALSE, BFD_RELOC_MICROMIPS_LO16);
+ fixp = fix_new_exp (fragp, buf - fragp->fr_literal, 4, &exp, FALSE,
+ BFD_RELOC_MICROMIPS_LO16);
fixp->fx_file = fragp->fr_file;
fixp->fx_line = fragp->fr_line;
- md_number_to_chars ((char *) buf, insn >> 16, 2);
- buf += 2;
- md_number_to_chars ((char *) buf, insn & 0xffff, 2);
- buf += 2;
+ buf = write_compressed_insn (buf, insn, 4);
/* jr/jrc/jalr/jalrs $at */
insn = al ? jalr : jr;
insn |= at << MICROMIPSOP_SH_MJ;
- md_number_to_chars ((char *) buf, insn & 0xffff, 2);
- buf += 2;
+ buf = write_compressed_insn (buf, insn, 2);
}
- gas_assert (buf == (bfd_byte *) fragp->fr_literal + fragp->fr_fix);
+ gas_assert (buf == fragp->fr_literal + fragp->fr_fix);
return;
}
{
int type;
const struct mips16_immed_operand *op;
- bfd_boolean small, ext;
offsetT val;
- bfd_byte *buf;
+ char *buf;
+ unsigned int user_length, length;
unsigned long insn;
- bfd_boolean use_extend;
- unsigned short extend;
+ bfd_boolean ext;
type = RELAX_MIPS16_TYPE (fragp->fr_subtype);
op = mips16_immed_operands;
while (op->type != type)
++op;
- if (RELAX_MIPS16_EXTENDED (fragp->fr_subtype))
- {
- small = FALSE;
- ext = TRUE;
- }
- else
- {
- small = TRUE;
- ext = FALSE;
- }
-
+ ext = RELAX_MIPS16_EXTENDED (fragp->fr_subtype);
val = resolve_symbol_value (fragp->fr_symbol);
if (op->pcrel)
{
as_warn_where (fragp->fr_file, fragp->fr_line,
_("extended instruction in delay slot"));
- buf = (bfd_byte *) (fragp->fr_literal + fragp->fr_fix);
+ buf = fragp->fr_literal + fragp->fr_fix;
- if (target_big_endian)
- insn = bfd_getb16 (buf);
- else
- insn = bfd_getl16 (buf);
+ insn = read_compressed_insn (buf, 2);
+ if (ext)
+ insn |= MIPS16_EXTEND;
- mips16_immed (fragp->fr_file, fragp->fr_line, type, val,
- RELAX_MIPS16_USER_EXT (fragp->fr_subtype),
- small, ext, &insn, &use_extend, &extend);
+ if (RELAX_MIPS16_USER_EXT (fragp->fr_subtype))
+ user_length = 4;
+ else if (RELAX_MIPS16_USER_SMALL (fragp->fr_subtype))
+ user_length = 2;
+ else
+ user_length = 0;
- if (use_extend)
- {
- md_number_to_chars ((char *) buf, 0xf000 | extend, 2);
- fragp->fr_fix += 2;
- buf += 2;
- }
+ mips16_immed (fragp->fr_file, fragp->fr_line, type,
+ BFD_RELOC_UNUSED, val, user_length, &insn);
- md_number_to_chars ((char *) buf, insn, 2);
- fragp->fr_fix += 2;
- buf += 2;
+ length = (ext ? 4 : 2);
+ gas_assert (mips16_opcode_length (insn) == length);
+ write_compressed_insn (buf, insn, length);
+ fragp->fr_fix += length;
}
else
{
move it. This also bumps the value of the symbol by 1 in compressed
code. */
-void
+static void
mips_record_label (symbolS *sym)
{
segment_info_type *si = seg_info (now_seg);
dwarf2_emit_label (sym);
#endif
}
+
+/* This function is called by tc_new_dot_label whenever a new dot symbol
+ is defined. */
+
+void
+mips_add_dot_label (symbolS *sym)
+{
+ mips_record_label (sym);
+ if (mips_assembling_insn && HAVE_CODE_COMPRESSION)
+ mips_compressed_mark_label (sym);
+}
\f
#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
case 2:
if (nop_opcode == NOP_OPCODE_MICROMIPS)
{
- md_number_to_chars (p, micromips_nop16_insn.insn_opcode, 2);
- p += 2;
+ p = write_compressed_insn (p, micromips_nop16_insn.insn_opcode, 2);
break;
}
*p++ = '\0';
{ "r4600", 0, ISA_MIPS3, CPU_R4600 },
{ "orion", 0, ISA_MIPS3, CPU_R4600 },
{ "r4650", 0, ISA_MIPS3, CPU_R4650 },
+ { "r5900", 0, ISA_MIPS3, CPU_R5900 },
/* ST Microelectronics Loongson 2E and 2F cores */
{ "loongson2e", 0, ISA_MIPS3, CPU_LOONGSON_2E },
{ "loongson2f", 0, ISA_MIPS3, CPU_LOONGSON_2F },
ISA_MIPS32R2, CPU_MIPS32R2 },
{ "34kx", MIPS_CPU_ASE_DSP | MIPS_CPU_ASE_MT,
ISA_MIPS32R2, CPU_MIPS32R2 },
+ /* 34Kn is a 34kc without DSP. */
+ { "34kn", MIPS_CPU_ASE_MT, ISA_MIPS32R2, CPU_MIPS32R2 },
/* 74K with DSP and DSPR2 ASE, other ASEs are optional. */
{ "74kc", MIPS_CPU_ASE_DSP | MIPS_CPU_ASE_DSPR2,
ISA_MIPS32R2, CPU_MIPS32R2 },
/* RMI Xlr */
{ "xlr", 0, ISA_MIPS64, CPU_XLR },
+ /* Broadcom XLP.
+ XLP is mostly like XLR, with the prominent exception that it is
+ MIPS64R2 rather than MIPS64. */
+ { "xlp", 0, ISA_MIPS64R2, CPU_XLR },
+
/* End marker */
{ NULL, 0, 0, 0 }
};
projects / deliverable / binutils-gdb.git / blobdiff