/* tc-i386.c -- Assemble code for the Intel 80386
- Copyright (C) 1989-2014 Free Software Foundation, Inc.
+ Copyright (C) 1989-2015 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
#include "elf/x86-64.h"
#include "opcodes/i386-init.h"
+#ifdef TE_LINUX
+/* Default to compress debug sections for Linux. */
+enum compressed_debug_section_type flag_compress_debug
+ = COMPRESS_DEBUG_GNU_ZLIB;
+#endif
+
#ifndef REGISTER_WARNINGS
#define REGISTER_WARNINGS 1
#endif
static int use_big_obj = 0;
#endif
+#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
+/* 1 if generating code for a shared library. */
+static int shared = 0;
+#endif
+
/* 1 for intel syntax,
0 if att syntax. */
static int intel_syntax = 0;
CPU_L1OM_FLAGS, 0, 0 },
{ STRING_COMMA_LEN ("k1om"), PROCESSOR_K1OM,
CPU_K1OM_FLAGS, 0, 0 },
+ { STRING_COMMA_LEN ("iamcu"), PROCESSOR_IAMCU,
+ CPU_IAMCU_FLAGS, 0, 0 },
{ STRING_COMMA_LEN ("k6"), PROCESSOR_K6,
CPU_K6_FLAGS, 0, 0 },
{ STRING_COMMA_LEN ("k6_2"), PROCESSOR_K6,
CPU_BDVER3_FLAGS, 0, 0 },
{ STRING_COMMA_LEN ("bdver4"), PROCESSOR_BD,
CPU_BDVER4_FLAGS, 0, 0 },
+ { STRING_COMMA_LEN ("znver1"), PROCESSOR_ZNVER,
+ CPU_ZNVER1_FLAGS, 0, 0 },
{ STRING_COMMA_LEN ("btver1"), PROCESSOR_BT,
CPU_BTVER1_FLAGS, 0, 0 },
{ STRING_COMMA_LEN ("btver2"), PROCESSOR_BT,
CPU_AVX512ER_FLAGS, 0, 0 },
{ STRING_COMMA_LEN (".avx512pf"), PROCESSOR_UNKNOWN,
CPU_AVX512PF_FLAGS, 0, 0 },
+ { STRING_COMMA_LEN (".avx512dq"), PROCESSOR_UNKNOWN,
+ CPU_AVX512DQ_FLAGS, 0, 0 },
+ { STRING_COMMA_LEN (".avx512bw"), PROCESSOR_UNKNOWN,
+ CPU_AVX512BW_FLAGS, 0, 0 },
+ { STRING_COMMA_LEN (".avx512vl"), PROCESSOR_UNKNOWN,
+ CPU_AVX512VL_FLAGS, 0, 0 },
{ STRING_COMMA_LEN (".noavx"), PROCESSOR_UNKNOWN,
CPU_ANY_AVX_FLAGS, 0, 1 },
{ STRING_COMMA_LEN (".vmx"), PROCESSOR_UNKNOWN,
CPU_XSAVE_FLAGS, 0, 0 },
{ STRING_COMMA_LEN (".xsaveopt"), PROCESSOR_UNKNOWN,
CPU_XSAVEOPT_FLAGS, 0, 0 },
+ { STRING_COMMA_LEN (".xsavec"), PROCESSOR_UNKNOWN,
+ CPU_XSAVEC_FLAGS, 0, 0 },
+ { STRING_COMMA_LEN (".xsaves"), PROCESSOR_UNKNOWN,
+ CPU_XSAVES_FLAGS, 0, 0 },
{ STRING_COMMA_LEN (".aes"), PROCESSOR_UNKNOWN,
CPU_AES_FLAGS, 0, 0 },
{ STRING_COMMA_LEN (".pclmul"), PROCESSOR_UNKNOWN,
CPU_SHA_FLAGS, 0, 0 },
{ STRING_COMMA_LEN (".clflushopt"), PROCESSOR_UNKNOWN,
CPU_CLFLUSHOPT_FLAGS, 0, 0 },
- { STRING_COMMA_LEN (".xsavec"), PROCESSOR_UNKNOWN,
- CPU_XSAVEC_FLAGS, 0, 0 },
- { STRING_COMMA_LEN (".xsaves"), PROCESSOR_UNKNOWN,
- CPU_XSAVES_FLAGS, 0, 0 },
{ STRING_COMMA_LEN (".prefetchwt1"), PROCESSOR_UNKNOWN,
CPU_PREFETCHWT1_FLAGS, 0, 0 },
{ STRING_COMMA_LEN (".se1"), PROCESSOR_UNKNOWN,
CPU_SE1_FLAGS, 0, 0 },
- { STRING_COMMA_LEN (".avx512dq"), PROCESSOR_UNKNOWN,
- CPU_AVX512DQ_FLAGS, 0, 0 },
- { STRING_COMMA_LEN (".avx512bw"), PROCESSOR_UNKNOWN,
- CPU_AVX512BW_FLAGS, 0, 0 },
- { STRING_COMMA_LEN (".avx512vl"), PROCESSOR_UNKNOWN,
- CPU_AVX512VL_FLAGS, 0, 0 },
+ { STRING_COMMA_LEN (".clwb"), PROCESSOR_UNKNOWN,
+ CPU_CLWB_FLAGS, 0, 0 },
+ { STRING_COMMA_LEN (".pcommit"), PROCESSOR_UNKNOWN,
+ CPU_PCOMMIT_FLAGS, 0, 0 },
+ { STRING_COMMA_LEN (".avx512ifma"), PROCESSOR_UNKNOWN,
+ CPU_AVX512IFMA_FLAGS, 0, 0 },
+ { STRING_COMMA_LEN (".avx512vbmi"), PROCESSOR_UNKNOWN,
+ CPU_AVX512VBMI_FLAGS, 0, 0 },
+ { STRING_COMMA_LEN (".clzero"), PROCESSOR_UNKNOWN,
+ CPU_CLZERO_FLAGS, 0, 0 },
+ { STRING_COMMA_LEN (".mwaitx"), PROCESSOR_UNKNOWN,
+ CPU_MWAITX_FLAGS, 0, 0 },
};
#ifdef I386COFF
/* nopw %cs:0L(%[re]ax,%[re]ax,1) */
static const char alt_10[] =
{0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
- /* data16
- nopw %cs:0L(%[re]ax,%[re]ax,1) */
- static const char alt_long_11[] =
- {0x66,
- 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
- /* data16
- data16
- nopw %cs:0L(%[re]ax,%[re]ax,1) */
- static const char alt_long_12[] =
- {0x66,
- 0x66,
- 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
- /* data16
- data16
- data16
- nopw %cs:0L(%[re]ax,%[re]ax,1) */
- static const char alt_long_13[] =
- {0x66,
- 0x66,
- 0x66,
- 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
- /* data16
- data16
- data16
- data16
- nopw %cs:0L(%[re]ax,%[re]ax,1) */
- static const char alt_long_14[] =
- {0x66,
- 0x66,
- 0x66,
- 0x66,
- 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
- /* data16
- data16
- data16
- data16
- data16
- nopw %cs:0L(%[re]ax,%[re]ax,1) */
- static const char alt_long_15[] =
- {0x66,
- 0x66,
- 0x66,
- 0x66,
- 0x66,
- 0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
- /* nopl 0(%[re]ax,%[re]ax,1)
- nopw 0(%[re]ax,%[re]ax,1) */
- static const char alt_short_11[] =
- {0x0f,0x1f,0x44,0x00,0x00,
- 0x66,0x0f,0x1f,0x44,0x00,0x00};
- /* nopw 0(%[re]ax,%[re]ax,1)
- nopw 0(%[re]ax,%[re]ax,1) */
- static const char alt_short_12[] =
- {0x66,0x0f,0x1f,0x44,0x00,0x00,
- 0x66,0x0f,0x1f,0x44,0x00,0x00};
- /* nopw 0(%[re]ax,%[re]ax,1)
- nopl 0L(%[re]ax) */
- static const char alt_short_13[] =
- {0x66,0x0f,0x1f,0x44,0x00,0x00,
- 0x0f,0x1f,0x80,0x00,0x00,0x00,0x00};
- /* nopl 0L(%[re]ax)
- nopl 0L(%[re]ax) */
- static const char alt_short_14[] =
- {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00,
- 0x0f,0x1f,0x80,0x00,0x00,0x00,0x00};
- /* nopl 0L(%[re]ax)
- nopl 0L(%[re]ax,%[re]ax,1) */
- static const char alt_short_15[] =
- {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00,
- 0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
- static const char *const alt_short_patt[] = {
+ static const char *const alt_patt[] = {
f32_1, f32_2, alt_3, alt_4, alt_5, alt_6, alt_7, alt_8,
- alt_9, alt_10, alt_short_11, alt_short_12, alt_short_13,
- alt_short_14, alt_short_15
- };
- static const char *const alt_long_patt[] = {
- f32_1, f32_2, alt_3, alt_4, alt_5, alt_6, alt_7, alt_8,
- alt_9, alt_10, alt_long_11, alt_long_12, alt_long_13,
- alt_long_14, alt_long_15
+ alt_9, alt_10
};
/* Only align for at least a positive non-zero boundary. */
1. For PROCESSOR_I386, PROCESSOR_I486, PROCESSOR_PENTIUM and
PROCESSOR_GENERIC32, f32_patt will be used.
- 2. For PROCESSOR_PENTIUMPRO, PROCESSOR_PENTIUM4, PROCESSOR_NOCONA,
- PROCESSOR_CORE, PROCESSOR_CORE2, PROCESSOR_COREI7, and
- PROCESSOR_GENERIC64, alt_long_patt will be used.
- 3. For PROCESSOR_ATHLON, PROCESSOR_K6, PROCESSOR_K8 and
- PROCESSOR_AMDFAM10, PROCESSOR_BD and PROCESSOR_BT, alt_short_patt
- will be used.
-
- When -mtune= isn't used, alt_long_patt will be used if
+ 2. For the rest, alt_patt will be used.
+
+ When -mtune= isn't used, alt_patt will be used if
cpu_arch_isa_flags has CpuNop. Otherwise, f32_patt will
be used.
/* We use cpu_arch_isa_flags to check if we SHOULD
optimize with nops. */
if (fragP->tc_frag_data.isa_flags.bitfield.cpunop)
- patt = alt_long_patt;
+ patt = alt_patt;
else
patt = f32_patt;
break;
case PROCESSOR_L1OM:
case PROCESSOR_K1OM:
case PROCESSOR_GENERIC64:
- patt = alt_long_patt;
- break;
case PROCESSOR_K6:
case PROCESSOR_ATHLON:
case PROCESSOR_K8:
case PROCESSOR_AMDFAM10:
case PROCESSOR_BD:
+ case PROCESSOR_ZNVER:
case PROCESSOR_BT:
- patt = alt_short_patt;
+ patt = alt_patt;
break;
case PROCESSOR_I386:
case PROCESSOR_I486:
case PROCESSOR_PENTIUM:
case PROCESSOR_PENTIUMPRO:
+ case PROCESSOR_IAMCU:
case PROCESSOR_GENERIC32:
patt = f32_patt;
break;
case PROCESSOR_I386:
case PROCESSOR_I486:
case PROCESSOR_PENTIUM:
+ case PROCESSOR_IAMCU:
case PROCESSOR_K6:
case PROCESSOR_ATHLON:
case PROCESSOR_K8:
case PROCESSOR_AMDFAM10:
case PROCESSOR_BD:
+ case PROCESSOR_ZNVER:
case PROCESSOR_BT:
case PROCESSOR_GENERIC32:
/* We use cpu_arch_isa_flags to check if we CAN optimize
with nops. */
if (fragP->tc_frag_data.isa_flags.bitfield.cpunop)
- patt = alt_short_patt;
+ patt = alt_patt;
else
patt = f32_patt;
break;
case PROCESSOR_L1OM:
case PROCESSOR_K1OM:
if (fragP->tc_frag_data.isa_flags.bitfield.cpunop)
- patt = alt_long_patt;
+ patt = alt_patt;
else
patt = f32_patt;
break;
case PROCESSOR_GENERIC64:
- patt = alt_long_patt;
+ patt = alt_patt;
break;
}
}
}
else
{
- /* Maximum length of an instruction is 15 byte. If the
- padding is greater than 15 bytes and we don't use jump,
+ /* Maximum length of an instruction is 10 byte. If the
+ padding is greater than 10 bytes and we don't use jump,
we have to break it into smaller pieces. */
int padding = count;
- while (padding > 15)
+ while (padding > 10)
{
- padding -= 15;
+ padding -= 10;
memcpy (fragP->fr_literal + fragP->fr_fix + padding,
- patt [14], 15);
+ patt [9], 10);
}
if (padding)
}
}
-static INLINE void
-cpu_flags_set (union i386_cpu_flags *x, unsigned int v)
-{
- switch (ARRAY_SIZE(x->array))
- {
- case 3:
- x->array[2] = v;
- case 2:
- x->array[1] = v;
- case 1:
- x->array[0] = v;
- break;
- default:
- abort ();
- }
-}
-
static INLINE int
cpu_flags_equal (const union i386_cpu_flags *x,
const union i386_cpu_flags *y)
return x;
}
+static int
+valid_iamcu_cpu_flags (const i386_cpu_flags *flags)
+{
+ if (cpu_arch_isa == PROCESSOR_IAMCU)
+ {
+ static const i386_cpu_flags iamcu_flags = CPU_IAMCU_COMPAT_FLAGS;
+ i386_cpu_flags compat_flags;
+ compat_flags = cpu_flags_and_not (*flags, iamcu_flags);
+ return cpu_flags_all_zero (&compat_flags);
+ }
+ else
+ return 1;
+}
+
#define CPU_FLAGS_ARCH_MATCH 0x1
#define CPU_FLAGS_64BIT_MATCH 0x2
#define CPU_FLAGS_AES_MATCH 0x4
{
return (match_reg_size (t, j)
&& !((i.types[j].bitfield.unspecified
+ && !i.broadcast
&& !t->operand_types[j].bitfield.unspecified)
|| (i.types[j].bitfield.fword
&& !t->operand_types[j].bitfield.fword)
arch = default_arch;
}
+ /* If we are targeting Intel MCU, we must enable it. */
+ if (get_elf_backend_data (stdoutput)->elf_machine_code != EM_IAMCU
+ || new_flag.bitfield.cpuiamcu)
+ return;
+
/* If we are targeting Intel L1OM, we must enable it. */
if (get_elf_backend_data (stdoutput)->elf_machine_code != EM_L1OM
|| new_flag.bitfield.cpul1om)
else
flags = cpu_flags_and_not (cpu_arch_flags,
cpu_arch[j].flags);
- if (!cpu_flags_equal (&flags, &cpu_arch_flags))
+
+ if (!valid_iamcu_cpu_flags (&flags))
+ as_fatal (_("`%s' isn't valid for Intel MCU"),
+ cpu_arch[j].name);
+ else if (!cpu_flags_equal (&flags, &cpu_arch_flags))
{
if (cpu_sub_arch_name)
{
as_fatal (_("Intel K1OM is 64bit ELF only"));
return bfd_arch_k1om;
}
+ else if (cpu_arch_isa == PROCESSOR_IAMCU)
+ {
+ if (OUTPUT_FLAVOR != bfd_target_elf_flavour
+ || flag_code == CODE_64BIT)
+ as_fatal (_("Intel MCU is 32bit ELF only"));
+ return bfd_arch_iamcu;
+ }
else
return bfd_arch_i386;
}
else
return bfd_mach_x64_32;
}
- else if (!strcmp (default_arch, "i386"))
- return bfd_mach_i386_i386;
+ else if (!strcmp (default_arch, "i386")
+ || !strcmp (default_arch, "iamcu"))
+ {
+ if (cpu_arch_isa == PROCESSOR_IAMCU)
+ {
+ if (OUTPUT_FLAVOR != bfd_target_elf_flavour)
+ as_fatal (_("Intel MCU is 32bit ELF only"));
+ return bfd_mach_i386_iamcu;
+ }
+ else
+ return bfd_mach_i386_i386;
+ }
else
as_fatal (_("unknown architecture"));
}
reloc (unsigned int size,
int pcrel,
int sign,
- int bnd_prefix,
bfd_reloc_code_real_type other)
{
if (other != NO_RELOC)
case BFD_RELOC_X86_64_GOT32:
return BFD_RELOC_X86_64_GOT64;
break;
+ case BFD_RELOC_X86_64_GOTPLT64:
+ return BFD_RELOC_X86_64_GOTPLT64;
+ break;
case BFD_RELOC_X86_64_PLTOFF64:
return BFD_RELOC_X86_64_PLTOFF64;
break;
{
case 1: return BFD_RELOC_8_PCREL;
case 2: return BFD_RELOC_16_PCREL;
- case 4: return (bnd_prefix && object_64bit
- ? BFD_RELOC_X86_64_PC32_BND
- : BFD_RELOC_32_PCREL);
+ case 4: return BFD_RELOC_32_PCREL;
case 8: return BFD_RELOC_64_PCREL;
}
as_bad (_("cannot do %u byte pc-relative relocation"), size);
i.operands = 0;
}
+ if (i.tm.cpu_flags.bitfield.cpumwaitx && i.operands > 0)
+ {
+ /* MONITORX/MWAITX instructions have fixed operands with an opcode
+ suffix which is coded in the same place as an 8-bit immediate
+ field would be.
+ Here we check those operands and remove them afterwards. */
+ unsigned int x;
+
+ if (i.operands != 3)
+ abort();
+
+ for (x = 0; x < 2; x++)
+ if (register_number (i.op[x].regs) != x)
+ goto bad_register_operand;
+
+ /* Check for third operand for mwaitx/monitorx insn. */
+ if (register_number (i.op[x].regs)
+ != (x + (i.tm.extension_opcode == 0xfb)))
+ {
+bad_register_operand:
+ as_bad (_("can't use register '%s%s' as operand %d in '%s'."),
+ register_prefix, i.op[x].regs->reg_name, x+1,
+ i.tm.name);
+ }
+
+ i.operands = 0;
+ }
+
/* These AMD 3DNow! and SSE2 instructions have an opcode suffix
which is coded in the same place as an 8-bit immediate field
would be. Here we fake an 8-bit immediate operand from the
/* 1 possible extra opcode + 4 byte displacement go in var part.
Pass reloc in fr_var. */
- frag_var (rs_machine_dependent, 5,
- ((!object_64bit
- || i.reloc[0] != NO_RELOC
- || (i.bnd_prefix == NULL && !add_bnd_prefix))
- ? i.reloc[0]
- : BFD_RELOC_X86_64_PC32_BND),
- subtype, sym, off, p);
+ frag_var (rs_machine_dependent, 5, i.reloc[0], subtype, sym, off, p);
}
static void
}
fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, size,
- i.op[0].disps, 1, reloc (size, 1, 1,
- (i.bnd_prefix != NULL
- || add_bnd_prefix),
- i.reloc[0]));
+ i.op[0].disps, 1, reloc (size, 1, 1, i.reloc[0]));
/* All jumps handled here are signed, but don't use a signed limit
check for 32 and 16 bit jumps as we want to allow wrap around at
}
else
fix_new_exp (frag_now, p - frag_now->fr_literal, size,
- i.op[1].imms, 0, reloc (size, 0, 0, 0, i.reloc[1]));
+ i.op[1].imms, 0, reloc (size, 0, 0, i.reloc[1]));
if (i.op[0].imms->X_op != O_constant)
as_bad (_("can't handle non absolute segment in `%s'"),
i.tm.name);
abort ();
}
+#if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)
+ /* For x32, add a dummy REX_OPCODE prefix for mov/add with
+ R_X86_64_GOTTPOFF relocation so that linker can safely
+ perform IE->LE optimization. */
+ if (x86_elf_abi == X86_64_X32_ABI
+ && i.operands == 2
+ && i.reloc[0] == BFD_RELOC_X86_64_GOTTPOFF
+ && i.prefix[REX_PREFIX] == 0)
+ add_prefix (REX_OPCODE);
+#endif
+
/* The prefix bytes. */
for (j = ARRAY_SIZE (i.prefix), q = i.prefix; j > 0; j--, q++)
if (*q)
}
p = frag_more (size);
- reloc_type = reloc (size, pcrel, sign,
- (i.bnd_prefix != NULL
- || add_bnd_prefix),
- i.reloc[n]);
+ reloc_type = reloc (size, pcrel, sign, i.reloc[n]);
if (GOT_symbol
&& GOT_symbol == i.op[n].disps->X_add_symbol
&& (((reloc_type == BFD_RELOC_32
sign = 0;
p = frag_more (size);
- reloc_type = reloc (size, 0, sign, 0, i.reloc[n]);
+ reloc_type = reloc (size, 0, sign, i.reloc[n]);
/* This is tough to explain. We end up with this one if we
* have operands that look like
x86_cons_fix_new (fragS *frag, unsigned int off, unsigned int len,
expressionS *exp, bfd_reloc_code_real_type r)
{
- r = reloc (len, 0, cons_sign, 0, r);
+ r = reloc (len, 0, cons_sign, r);
#ifdef TE_PE
if (exp->X_op == O_secrel)
#if !(defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined (OBJ_MACH_O)) \
|| defined (LEX_AT)
-# define lex_got(reloc, adjust, types, bnd_prefix) NULL
+# define lex_got(reloc, adjust, types) NULL
#else
/* Parse operands of the form
<symbol>@GOTOFF+<nnn>
static char *
lex_got (enum bfd_reloc_code_real *rel,
int *adjust,
- i386_operand_type *types,
- int bnd_prefix)
+ i386_operand_type *types)
{
/* Some of the relocations depend on the size of what field is to
be relocated. But in our callers i386_immediate and i386_displacement
*adjust = len;
memcpy (tmpbuf + first, past_reloc, second);
tmpbuf[first + second] = '\0';
- if (bnd_prefix && *rel == BFD_RELOC_X86_64_PLT32)
- *rel = BFD_RELOC_X86_64_PLT32_BND;
return tmpbuf;
}
static char *
lex_got (enum bfd_reloc_code_real *rel ATTRIBUTE_UNUSED,
int *adjust ATTRIBUTE_UNUSED,
- i386_operand_type *types,
- int bnd_prefix ATTRIBUTE_UNUSED)
+ i386_operand_type *types)
{
static const struct
{
int adjust = 0;
save = input_line_pointer;
- gotfree_input_line = lex_got (&got_reloc, &adjust, NULL, 0);
+ gotfree_input_line = lex_got (&got_reloc, &adjust, NULL);
if (gotfree_input_line)
input_line_pointer = gotfree_input_line;
save_input_line_pointer = input_line_pointer;
input_line_pointer = imm_start;
- gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types,
- (i.bnd_prefix != NULL
- || add_bnd_prefix));
+ gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types);
if (gotfree_input_line)
input_line_pointer = gotfree_input_line;
*displacement_string_end = '0';
}
#endif
- gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types,
- (i.bnd_prefix != NULL
- || add_bnd_prefix));
+ gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types);
if (gotfree_input_line)
input_line_pointer = gotfree_input_line;
return TYPE_FROM_RELAX_STATE (frag->fr_subtype) == UNCOND_JUMP ? 4 : 5;
}
+#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
+static int
+elf_symbol_resolved_in_segment_p (symbolS *fr_symbol, offsetT fr_var)
+{
+ /* STT_GNU_IFUNC symbol must go through PLT. */
+ if ((symbol_get_bfdsym (fr_symbol)->flags
+ & BSF_GNU_INDIRECT_FUNCTION) != 0)
+ return 0;
+
+ if (!S_IS_EXTERNAL (fr_symbol))
+ /* Symbol may be weak or local. */
+ return !S_IS_WEAK (fr_symbol);
+
+ /* Global symbols with non-default visibility can't be preempted. */
+ if (ELF_ST_VISIBILITY (S_GET_OTHER (fr_symbol)) != STV_DEFAULT)
+ return 1;
+
+ if (fr_var != NO_RELOC)
+ switch ((enum bfd_reloc_code_real) fr_var)
+ {
+ case BFD_RELOC_386_PLT32:
+ case BFD_RELOC_X86_64_PLT32:
+ /* Symbol with PLT relocatin may be preempted. */
+ return 0;
+ default:
+ abort ();
+ }
+
+ /* Global symbols with default visibility in a shared library may be
+ preempted by another definition. */
+ return !shared;
+}
+#endif
+
/* md_estimate_size_before_relax()
Called just before relax() for rs_machine_dependent frags. The x86
if (S_GET_SEGMENT (fragP->fr_symbol) != segment
#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
|| (IS_ELF
- && (S_IS_EXTERNAL (fragP->fr_symbol)
- || S_IS_WEAK (fragP->fr_symbol)
- || ((symbol_get_bfdsym (fragP->fr_symbol)->flags
- & BSF_GNU_INDIRECT_FUNCTION))))
+ && !elf_symbol_resolved_in_segment_p (fragP->fr_symbol,
+ fragP->fr_var))
#endif
#if defined (OBJ_COFF) && defined (TE_PE)
|| (OUTPUT_FLAVOR == bfd_target_coff_flavour
&& (fixP->fx_r_type == BFD_RELOC_32_PCREL
|| fixP->fx_r_type == BFD_RELOC_64_PCREL
|| fixP->fx_r_type == BFD_RELOC_16_PCREL
- || fixP->fx_r_type == BFD_RELOC_8_PCREL
- || fixP->fx_r_type == BFD_RELOC_X86_64_PC32_BND)
+ || fixP->fx_r_type == BFD_RELOC_8_PCREL)
&& !use_rela_relocations)
{
/* This is a hack. There should be a better way to handle this.
{
case BFD_RELOC_386_PLT32:
case BFD_RELOC_X86_64_PLT32:
- case BFD_RELOC_X86_64_PLT32_BND:
/* Make the jump instruction point to the address of the operand. At
runtime we merely add the offset to the actual PLT entry. */
value = -4;
#define OPTION_MBIG_OBJ (OPTION_MD_BASE + 18)
#define OPTION_OMIT_LOCK_PREFIX (OPTION_MD_BASE + 19)
#define OPTION_MEVEXRCIG (OPTION_MD_BASE + 20)
+#define OPTION_MSHARED (OPTION_MD_BASE + 21)
+#define OPTION_MAMD64 (OPTION_MD_BASE + 22)
+#define OPTION_MINTEL64 (OPTION_MD_BASE + 23)
struct option md_longopts[] =
{
#endif
#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
{"x32", no_argument, NULL, OPTION_X32},
+ {"mshared", no_argument, NULL, OPTION_MSHARED},
#endif
{"divide", no_argument, NULL, OPTION_DIVIDE},
{"march", required_argument, NULL, OPTION_MARCH},
#endif
{"momit-lock-prefix", required_argument, NULL, OPTION_OMIT_LOCK_PREFIX},
{"mevexrcig", required_argument, NULL, OPTION_MEVEXRCIG},
+ {"mamd64", no_argument, NULL, OPTION_MAMD64},
+ {"mintel64", no_argument, NULL, OPTION_MINTEL64},
{NULL, no_argument, NULL, 0}
};
size_t md_longopts_size = sizeof (md_longopts);
/* -s: On i386 Solaris, this tells the native assembler to use
.stab instead of .stab.excl. We always use .stab anyhow. */
break;
+
+ case OPTION_MSHARED:
+ shared = 1;
+ break;
#endif
#if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
|| defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
else
flags = cpu_flags_and_not (cpu_arch_flags,
cpu_arch[j].flags);
- if (!cpu_flags_equal (&flags, &cpu_arch_flags))
+
+ if (!valid_iamcu_cpu_flags (&flags))
+ as_fatal (_("`%s' isn't valid for Intel MCU"), arch);
+ else if (!cpu_flags_equal (&flags, &cpu_arch_flags))
{
if (cpu_sub_arch_name)
{
as_fatal (_("invalid -momit-lock-prefix= option: `%s'"), arg);
break;
+ case OPTION_MAMD64:
+ cpu_arch_flags.bitfield.cpuamd64 = 1;
+ cpu_arch_flags.bitfield.cpuintel64 = 0;
+ cpu_arch_isa_flags.bitfield.cpuamd64 = 1;
+ cpu_arch_isa_flags.bitfield.cpuintel64 = 0;
+ break;
+
+ case OPTION_MINTEL64:
+ cpu_arch_flags.bitfield.cpuamd64 = 0;
+ cpu_arch_flags.bitfield.cpuintel64 = 1;
+ cpu_arch_isa_flags.bitfield.cpuamd64 = 0;
+ cpu_arch_isa_flags.bitfield.cpuintel64 = 1;
+ break;
+
default:
return 0;
}
-mold-gcc support old (<= 2.8.1) versions of gcc\n"));
fprintf (stream, _("\
-madd-bnd-prefix add BND prefix for all valid branches\n"));
+ fprintf (stream, _("\
+ -mshared disable branch optimization for shared code\n"));
# if defined (TE_PE) || defined (TE_PEP)
fprintf (stream, _("\
-mbig-obj generate big object files\n"));
fprintf (stream, _("\
-momit-lock-prefix=[no|yes]\n\
strip all lock prefixes\n"));
+ fprintf (stream, _("\
+ -mamd64 accept only AMD64 ISA\n"));
+ fprintf (stream, _("\
+ -mintel64 accept only Intel64 ISA\n"));
}
#if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
}
else if (!strcmp (default_arch, "i386"))
update_code_flag (CODE_32BIT, 1);
+ else if (!strcmp (default_arch, "iamcu"))
+ {
+ update_code_flag (CODE_32BIT, 1);
+ if (cpu_arch_isa == PROCESSOR_UNKNOWN)
+ {
+ static const i386_cpu_flags iamcu_flags = CPU_IAMCU_FLAGS;
+ cpu_arch_name = "iamcu";
+ cpu_sub_arch_name = NULL;
+ cpu_arch_flags = iamcu_flags;
+ cpu_arch_isa = PROCESSOR_IAMCU;
+ cpu_arch_isa_flags = iamcu_flags;
+ if (!cpu_arch_tune_set)
+ {
+ cpu_arch_tune = cpu_arch_isa;
+ cpu_arch_tune_flags = cpu_arch_isa_flags;
+ }
+ }
+ else
+ as_fatal (_("Intel MCU doesn't support `%s' architecture"),
+ cpu_arch_name);
+ }
else
as_fatal (_("unknown architecture"));
as_fatal (_("Intel L1OM is 64bit only"));
return ELF_TARGET_L1OM_FORMAT;
}
- if (cpu_arch_isa == PROCESSOR_K1OM)
+ else if (cpu_arch_isa == PROCESSOR_K1OM)
{
if (x86_elf_abi != X86_64_ABI)
as_fatal (_("Intel K1OM is 64bit only"));
return ELF_TARGET_K1OM_FORMAT;
}
+ else if (cpu_arch_isa == PROCESSOR_IAMCU)
+ {
+ if (x86_elf_abi != I386_ABI)
+ as_fatal (_("Intel MCU is 32bit only"));
+ return ELF_TARGET_IAMCU_FORMAT;
+ }
else
return format;
}
}
#endif /* OBJ_MAYBE_ more than one */
-
-#if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF))
-void
-i386_elf_emit_arch_note (void)
-{
- if (IS_ELF && cpu_arch_name != NULL)
- {
- char *p;
- asection *seg = now_seg;
- subsegT subseg = now_subseg;
- Elf_Internal_Note i_note;
- Elf_External_Note e_note;
- asection *note_secp;
- int len;
-
- /* Create the .note section. */
- note_secp = subseg_new (".note", 0);
- bfd_set_section_flags (stdoutput,
- note_secp,
- SEC_HAS_CONTENTS | SEC_READONLY);
-
- /* Process the arch string. */
- len = strlen (cpu_arch_name);
-
- i_note.namesz = len + 1;
- i_note.descsz = 0;
- i_note.type = NT_ARCH;
- p = frag_more (sizeof (e_note.namesz));
- md_number_to_chars (p, (valueT) i_note.namesz, sizeof (e_note.namesz));
- p = frag_more (sizeof (e_note.descsz));
- md_number_to_chars (p, (valueT) i_note.descsz, sizeof (e_note.descsz));
- p = frag_more (sizeof (e_note.type));
- md_number_to_chars (p, (valueT) i_note.type, sizeof (e_note.type));
- p = frag_more (len + 1);
- strcpy (p, cpu_arch_name);
-
- frag_align (2, 0, 0);
-
- subseg_set (seg, subseg);
- }
-}
-#endif
\f
symbolS *
md_undefined_symbol (char *name)
#endif
case BFD_RELOC_X86_64_PLT32:
- case BFD_RELOC_X86_64_PLT32_BND:
case BFD_RELOC_X86_64_GOT32:
case BFD_RELOC_X86_64_GOTPCREL:
case BFD_RELOC_386_PLT32:
break;
case 1: code = BFD_RELOC_8_PCREL; break;
case 2: code = BFD_RELOC_16_PCREL; break;
- case 4:
- code = (fixp->fx_r_type == BFD_RELOC_X86_64_PC32_BND
- ? fixp-> fx_r_type : BFD_RELOC_32_PCREL);
- break;
+ case 4: code = BFD_RELOC_32_PCREL; break;
#ifdef BFD64
case 8: code = BFD_RELOC_64_PCREL; break;
#endif
switch (code)
{
case BFD_RELOC_X86_64_PLT32:
- case BFD_RELOC_X86_64_PLT32_BND:
case BFD_RELOC_X86_64_GOT32:
case BFD_RELOC_X86_64_GOTPCREL:
case BFD_RELOC_X86_64_TLSGD:
projects / deliverable / binutils-gdb.git / blobdiff