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Add R_X86_64_PC32_BND and R_X86_64_PLT32_BND

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bfd/

	* elf64-x86-64.c (x86_64_elf_howto_table): Add R_X86_64_PC32_BND
	and R_X86_64_PLT32_BND.
	(R_X86_64_standard): Replace R_X86_64_RELATIVE64 with
	R_X86_64_PLT32_BND.
	(IS_X86_64_PCREL_TYPE): Add R_X86_64_PLT32_BND.
	(x86_64_reloc_map): Add BFD_RELOC_X86_64_PC32_BND and
	BFD_RELOC_X86_64_PLT32_BND.
	(elf_x86_64_check_relocs): Handle R_X86_64_PC32_BND and
	R_X86_64_PLT32_BND.
	(elf_x86_64_gc_sweep_hook): Likewise.
	(elf_x86_64_relocate_section): Likewise.
	* reloc.c (bfd_reloc_code_real): Add BFD_RELOC_X86_64_PC32_BND
	and BFD_RELOC_X86_64_PLT32_BND.
	* bfd-in2.h: Regenerated.
	* libbfd.h: Likewise.

gas/

	* config/tc-i386.c (reloc): Add an argument, bnd_prefix, to
	indicate if instruction has the BND prefix.  Return
	BFD_RELOC_X86_64_PC32_BND instead of BFD_RELOC_32_PCREL if
	bnd_prefix isn't zero.
	(output_branch): Pass BFD_RELOC_X86_64_PC32_BND to frag_var
	if needed.
	(output_jump): Update reloc call.
	(output_interseg_jump): Likewise.
	(output_disp): Likewise.
	(output_imm): Likewise.
	(x86_cons_fix_new): Likewise.
	(lex_got): Add an argument, bnd_prefix, to indicate if
	instruction has the BND prefix.  Use BFD_RELOC_X86_64_PLT32_BND
	if needed.
	(x86_cons): Update lex_got call.
	(i386_immediate): Likewise.
	(i386_displacement): Likewise.
	(md_apply_fix): Handle BFD_RELOC_X86_64_PC32_BND and
	BFD_RELOC_X86_64_PLT32_BND.
	(tc_gen_reloc): Likewise.
	* config/tc-i386-intel.c (i386_operator): Update lex_got call.

gas/testsuite/

	* gas/i386/i386.exp: Run x86-64-mpx-branch-1 and
	x86-64-mpx-branch-2 on 64-bit ELF targets.
	* gas/i386/x86-64-mpx-branch-1.d: New file.
	* gas/i386/x86-64-mpx-branch-1.s: Likewise.
	* gas/i386/x86-64-mpx-branch-2.d: Likewise.
	* gas/i386/x86-64-mpx-branch-2.s: Likewise.

include/elf/

	* x86-64.h: Add R_X86_64_PC32_BND and R_X86_64_PLT32_BND.

ld/testsuite/

	* ld-x86-64/mpx.exp: New file.
	* ld-x86-64/mpx1.out: Likewise.
	* ld-x86-64/mpx1a.c: Likewise.
	* ld-x86-64/mpx1a.rd: Likewise.
	* ld-x86-64/mpx1b.c: Likewise.
	* ld-x86-64/mpx1c.c: Likewise.
	* ld-x86-64/mpx1c.rd: Likewise.
This commit is contained in:
H.J. Lu 2013-11-12 15:46:55 -08:00
parent b13704181f
commit c33205431a
24 changed files with 333 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
bfd/ChangeLog
View File

@ -1,3 +1,21 @@
2013-11-17 H.J. Lu <hongjiu.lu@intel.com>
* elf64-x86-64.c (x86_64_elf_howto_table): Add R_X86_64_PC32_BND
and R_X86_64_PLT32_BND.
(R_X86_64_standard): Replace R_X86_64_RELATIVE64 with
R_X86_64_PLT32_BND.
(IS_X86_64_PCREL_TYPE): Add R_X86_64_PLT32_BND.
(x86_64_reloc_map): Add BFD_RELOC_X86_64_PC32_BND and
BFD_RELOC_X86_64_PLT32_BND.
(elf_x86_64_check_relocs): Handle R_X86_64_PC32_BND and
R_X86_64_PLT32_BND.
(elf_x86_64_gc_sweep_hook): Likewise.
(elf_x86_64_relocate_section): Likewise.
* reloc.c (bfd_reloc_code_real): Add BFD_RELOC_X86_64_PC32_BND
and BFD_RELOC_X86_64_PLT32_BND.
* bfd-in2.h: Regenerated.
* libbfd.h: Likewise.
2013-11-15 H.J. Lu <hongjiu.lu@intel.com>
* elf32-i386.c (elf_i386_allocate_dynrelocs): Make room for

2
bfd/bfd-in2.h
View File

@ -3125,6 +3125,8 @@ instruction. */
BFD_RELOC_X86_64_TLSDESC_CALL,
BFD_RELOC_X86_64_TLSDESC,
BFD_RELOC_X86_64_IRELATIVE,
BFD_RELOC_X86_64_PC32_BND,
BFD_RELOC_X86_64_PLT32_BND,
/* ns32k relocations */
BFD_RELOC_NS32K_IMM_8,

28
bfd/elf64-x86-64.c
View File

@ -172,12 +172,18 @@ static reloc_howto_type x86_64_elf_howto_table[] =
HOWTO(R_X86_64_RELATIVE64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_X86_64_RELATIVE64", FALSE, MINUS_ONE,
MINUS_ONE, FALSE),
HOWTO(R_X86_64_PC32_BND, 0, 2, 32, TRUE, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_PC32_BND", FALSE, 0xffffffff, 0xffffffff,
TRUE),
HOWTO(R_X86_64_PLT32_BND, 0, 2, 32, TRUE, 0, complain_overflow_signed,
bfd_elf_generic_reloc, "R_X86_64_PLT32_BND", FALSE, 0xffffffff, 0xffffffff,
TRUE),
/* We have a gap in the reloc numbers here.
R_X86_64_standard counts the number up to this point, and
R_X86_64_vt_offset is the value to subtract from a reloc type of
R_X86_64_GNU_VT* to form an index into this table. */
#define R_X86_64_standard (R_X86_64_RELATIVE64 + 1)
#define R_X86_64_standard (R_X86_64_PLT32_BND + 1)
#define R_X86_64_vt_offset (R_X86_64_GNU_VTINHERIT - R_X86_64_standard)
/* GNU extension to record C++ vtable hierarchy. */
@ -199,6 +205,7 @@ static reloc_howto_type x86_64_elf_howto_table[] =
( ((TYPE) == R_X86_64_PC8) \
|| ((TYPE) == R_X86_64_PC16) \
|| ((TYPE) == R_X86_64_PC32) \
|| ((TYPE) == R_X86_64_PC32_BND) \
|| ((TYPE) == R_X86_64_PC64))
/* Map BFD relocs to the x86_64 elf relocs. */
@ -248,6 +255,8 @@ static const struct elf_reloc_map x86_64_reloc_map[] =
{ BFD_RELOC_X86_64_TLSDESC_CALL, R_X86_64_TLSDESC_CALL, },
{ BFD_RELOC_X86_64_TLSDESC, R_X86_64_TLSDESC, },
{ BFD_RELOC_X86_64_IRELATIVE, R_X86_64_IRELATIVE, },
{ BFD_RELOC_X86_64_PC32_BND, R_X86_64_PC32_BND,},
{ BFD_RELOC_X86_64_PLT32_BND, R_X86_64_PLT32_BND,},
{ BFD_RELOC_VTABLE_INHERIT, R_X86_64_GNU_VTINHERIT, },
{ BFD_RELOC_VTABLE_ENTRY, R_X86_64_GNU_VTENTRY, },
};
@ -1542,8 +1551,10 @@ elf_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info,
case R_X86_64_32:
case R_X86_64_64:
case R_X86_64_PC32:
case R_X86_64_PC32_BND:
case R_X86_64_PC64:
case R_X86_64_PLT32:
case R_X86_64_PLT32_BND:
case R_X86_64_GOTPCREL:
case R_X86_64_GOTPCREL64:
if (htab->elf.dynobj == NULL)
@ -1706,6 +1717,7 @@ elf_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info,
break;
case R_X86_64_PLT32:
case R_X86_64_PLT32_BND:
/* This symbol requires a procedure linkage table entry. We
actually build the entry in adjust_dynamic_symbol,
because this might be a case of linking PIC code which is
@ -1766,6 +1778,7 @@ elf_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info,
case R_X86_64_PC8:
case R_X86_64_PC16:
case R_X86_64_PC32:
case R_X86_64_PC32_BND:
case R_X86_64_PC64:
case R_X86_64_64:
pointer:
@ -1782,7 +1795,9 @@ pointer:
/* We may need a .plt entry if the function this reloc
refers to is in a shared lib. */
h->plt.refcount += 1;
if (r_type != R_X86_64_PC32 && r_type != R_X86_64_PC64)
if (r_type != R_X86_64_PC32
&& r_type != R_X86_64_PC32_BND
&& r_type != R_X86_64_PC64)
h->pointer_equality_needed = 1;
}
@ -2066,6 +2081,7 @@ elf_x86_64_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
case R_X86_64_PC8:
case R_X86_64_PC16:
case R_X86_64_PC32:
case R_X86_64_PC32_BND:
case R_X86_64_PC64:
case R_X86_64_SIZE32:
case R_X86_64_SIZE64:
@ -2075,6 +2091,7 @@ elf_x86_64_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
/* Fall thru */
case R_X86_64_PLT32:
case R_X86_64_PLT32_BND:
case R_X86_64_PLTOFF64:
if (h != NULL)
{
@ -3441,8 +3458,10 @@ elf_x86_64_relocate_section (bfd *output_bfd,
}
/* FALLTHROUGH */
case R_X86_64_PC32:
case R_X86_64_PC32_BND:
case R_X86_64_PC64:
case R_X86_64_PLT32:
case R_X86_64_PLT32_BND:
goto do_relocation;
case R_X86_64_GOTPCREL:
@ -3687,6 +3706,7 @@ elf_x86_64_relocate_section (bfd *output_bfd,
break;
case R_X86_64_PLT32:
case R_X86_64_PLT32_BND:
/* Relocation is to the entry for this symbol in the
procedure linkage table. */
@ -3719,6 +3739,7 @@ elf_x86_64_relocate_section (bfd *output_bfd,
case R_X86_64_PC8:
case R_X86_64_PC16:
case R_X86_64_PC32:
case R_X86_64_PC32_BND:
if (info->shared
&& (input_section->flags & SEC_ALLOC) != 0
&& (input_section->flags & SEC_READONLY) != 0
@ -3726,7 +3747,8 @@ elf_x86_64_relocate_section (bfd *output_bfd,
{
bfd_boolean fail = FALSE;
bfd_boolean branch
= (r_type == R_X86_64_PC32
= ((r_type == R_X86_64_PC32
|| r_type == R_X86_64_PC32_BND)
&& is_32bit_relative_branch (contents, rel->r_offset));
if (SYMBOL_REFERENCES_LOCAL (info, h))

2
bfd/libbfd.h
View File

@ -1307,6 +1307,8 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
"BFD_RELOC_X86_64_TLSDESC_CALL",
"BFD_RELOC_X86_64_TLSDESC",
"BFD_RELOC_X86_64_IRELATIVE",
"BFD_RELOC_X86_64_PC32_BND",
"BFD_RELOC_X86_64_PLT32_BND",
"BFD_RELOC_NS32K_IMM_8",
"BFD_RELOC_NS32K_IMM_16",
"BFD_RELOC_NS32K_IMM_32",

4
bfd/reloc.c
View File

@ -2699,6 +2699,10 @@ ENUMX
BFD_RELOC_X86_64_TLSDESC
ENUMX
BFD_RELOC_X86_64_IRELATIVE
ENUMX
BFD_RELOC_X86_64_PC32_BND
ENUMX
BFD_RELOC_X86_64_PLT32_BND
ENUMDOC
x86-64/elf relocations

24
gas/ChangeLog
View File

@ -1,3 +1,27 @@
2013-11-17 H.J. Lu <hongjiu.lu@intel.com>
* config/tc-i386.c (reloc): Add an argument, bnd_prefix, to
indicate if instruction has the BND prefix. Return
BFD_RELOC_X86_64_PC32_BND instead of BFD_RELOC_32_PCREL if
bnd_prefix isn't zero.
(output_branch): Pass BFD_RELOC_X86_64_PC32_BND to frag_var
if needed.
(output_jump): Update reloc call.
(output_interseg_jump): Likewise.
(output_disp): Likewise.
(output_imm): Likewise.
(x86_cons_fix_new): Likewise.
(lex_got): Add an argument, bnd_prefix, to indicate if
instruction has the BND prefix. Use BFD_RELOC_X86_64_PLT32_BND
if needed.
(x86_cons): Update lex_got call.
(i386_immediate): Likewise.
(i386_displacement): Likewise.
(md_apply_fix): Handle BFD_RELOC_X86_64_PC32_BND and
BFD_RELOC_X86_64_PLT32_BND.
(tc_gen_reloc): Likewise.
* config/tc-i386-intel.c (i386_operator): Update lex_got call.
2013-11-15 Yufeng Zhang <yufeng.zhang@arm.com>
* config/tc-aarch64.c (set_other_error): New function.

4
gas/config/tc-i386-intel.c
View File

@ -142,7 +142,9 @@ operatorT i386_operator (const char *name, unsigned int operands, char *pc)
int adjust = 0;
char *gotfree_input_line = lex_got (&i.reloc[this_operand],
&adjust,
&intel_state.reloc_types);
&intel_state.reloc_types,
(i.bnd_prefix != NULL
|| add_bnd_prefix));
if (!gotfree_input_line)
break;

55
gas/config/tc-i386.c
View File

@ -2800,6 +2800,7 @@ static bfd_reloc_code_real_type
reloc (unsigned int size,
int pcrel,
int sign,
int bnd_prefix,
bfd_reloc_code_real_type other)
{
if (other != NO_RELOC)
@ -2872,7 +2873,9 @@ reloc (unsigned int size,
{
case 1: return BFD_RELOC_8_PCREL;
case 2: return BFD_RELOC_16_PCREL;
case 4: return BFD_RELOC_32_PCREL;
case 4: return (bnd_prefix && object_64bit
? BFD_RELOC_X86_64_PC32_BND
: BFD_RELOC_32_PCREL);
case 8: return BFD_RELOC_64_PCREL;
}
as_bad (_("cannot do %u byte pc-relative relocation"), size);
@ -6716,7 +6719,13 @@ output_branch (void)
/* 1 possible extra opcode + 4 byte displacement go in var part.
Pass reloc in fr_var. */
frag_var (rs_machine_dependent, 5, i.reloc[0], subtype, sym, off, p);
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);
}
static void
@ -6792,7 +6801,10 @@ output_jump (void)
}
fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, size,
i.op[0].disps, 1, reloc (size, 1, 1, i.reloc[0]));
i.op[0].disps, 1, reloc (size, 1, 1,
(i.bnd_prefix != NULL
|| add_bnd_prefix),
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
@ -6858,7 +6870,7 @@ output_interseg_jump (void)
}
else
fix_new_exp (frag_now, p - frag_now->fr_literal, size,
i.op[1].imms, 0, reloc (size, 0, 0, i.reloc[1]));
i.op[1].imms, 0, reloc (size, 0, 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);
@ -7117,7 +7129,10 @@ output_disp (fragS *insn_start_frag, offsetT insn_start_off)
}
p = frag_more (size);
reloc_type = reloc (size, pcrel, sign, i.reloc[n]);
reloc_type = reloc (size, pcrel, sign,
(i.bnd_prefix != NULL
|| add_bnd_prefix),
i.reloc[n]);
if (GOT_symbol
&& GOT_symbol == i.op[n].disps->X_add_symbol
&& (((reloc_type == BFD_RELOC_32
@ -7208,7 +7223,7 @@ output_imm (fragS *insn_start_frag, offsetT insn_start_off)
sign = 0;
p = frag_more (size);
reloc_type = reloc (size, 0, sign, i.reloc[n]);
reloc_type = reloc (size, 0, sign, 0, i.reloc[n]);
/* This is tough to explain. We end up with this one if we
* have operands that look like
@ -7302,7 +7317,7 @@ void
x86_cons_fix_new (fragS *frag, unsigned int off, unsigned int len,
expressionS *exp)
{
enum bfd_reloc_code_real r = reloc (len, 0, cons_sign, got_reloc);
enum bfd_reloc_code_real r = reloc (len, 0, cons_sign, 0, got_reloc);
got_reloc = NO_RELOC;
@ -7344,7 +7359,8 @@ x86_address_bytes (void)
static char *
lex_got (enum bfd_reloc_code_real *rel,
int *adjust,
i386_operand_type *types)
i386_operand_type *types,
int bnd_prefix)
{
/* Some of the relocations depend on the size of what field is to
be relocated. But in our callers i386_immediate and i386_displacement
@ -7479,6 +7495,8 @@ lex_got (enum bfd_reloc_code_real *rel,
*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;
}
@ -7610,7 +7628,7 @@ x86_cons (expressionS *exp, int size)
int adjust = 0;
save = input_line_pointer;
gotfree_input_line = lex_got (&got_reloc, &adjust, NULL);
gotfree_input_line = lex_got (&got_reloc, &adjust, NULL, 0);
if (gotfree_input_line)
input_line_pointer = gotfree_input_line;
@ -7838,7 +7856,9 @@ i386_immediate (char *imm_start)
save_input_line_pointer = input_line_pointer;
input_line_pointer = imm_start;
gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types);
gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types,
(i.bnd_prefix != NULL
|| add_bnd_prefix));
if (gotfree_input_line)
input_line_pointer = gotfree_input_line;
@ -8095,7 +8115,9 @@ i386_displacement (char *disp_start, char *disp_end)
*displacement_string_end = '0';
}
#endif
gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types);
gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types,
(i.bnd_prefix != NULL
|| add_bnd_prefix));
if (gotfree_input_line)
input_line_pointer = gotfree_input_line;
@ -9055,7 +9077,8 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
&& (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_8_PCREL
|| fixP->fx_r_type == BFD_RELOC_X86_64_PC32_BND)
&& !use_rela_relocations)
{
/* This is a hack. There should be a better way to handle this.
@ -9111,6 +9134,7 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
{
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;
@ -10182,6 +10206,7 @@ tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp)
#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:
@ -10242,7 +10267,10 @@ tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp)
break;
case 1: code = BFD_RELOC_8_PCREL; break;
case 2: code = BFD_RELOC_16_PCREL; break;
case 4: code = BFD_RELOC_32_PCREL; break;
case 4:
code = (fixp->fx_r_type == BFD_RELOC_X86_64_PC32_BND
? fixp-> fx_r_type : BFD_RELOC_32_PCREL);
break;
#ifdef BFD64
case 8: code = BFD_RELOC_64_PCREL; break;
#endif
@ -10335,6 +10363,7 @@ tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp)
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:

9
gas/testsuite/ChangeLog
View File

@ -1,3 +1,12 @@
2013-11-17 H.J. Lu <hongjiu.lu@intel.com>
* gas/i386/i386.exp: Run x86-64-mpx-branch-1 and
x86-64-mpx-branch-2 on 64-bit ELF targets.
* gas/i386/x86-64-mpx-branch-1.d: New file.
* gas/i386/x86-64-mpx-branch-1.s: Likewise.
* gas/i386/x86-64-mpx-branch-2.d: Likewise.
* gas/i386/x86-64-mpx-branch-2.s: Likewise.
2013-11-15 Yufeng Zhang <yufeng.zhang@arm.com>
* gas/aarch64/diagnostic.s: Add tests.

2
gas/testsuite/gas/i386/i386.exp
View File

@ -589,6 +589,8 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_64_check]] t
run_dump_test "k1om"
run_dump_test "x86-64-localpic"
run_dump_test "debug1"
run_dump_test "x86-64-mpx-branch-1"
run_dump_test "x86-64-mpx-branch-2"
run_dump_test "x86-64-dw2-compress-2"

28
gas/testsuite/gas/i386/x86-64-mpx-branch-1.d Normal file
View File

@ -0,0 +1,28 @@
#as: -J
#objdump: -dwr
#name: x86-64 MPX branch
.*: +file format .*
Disassembly of section .text:
0+ <foo1-0xc>:
[ ]*[a-f0-9]+: f2 e8 00 00 00 00 bnd callq 6 <foo1-0x6> 2: R_X86_64_PC32_BND \*ABS\*\+0x10003c
[ ]*[a-f0-9]+: f2 e9 00 00 00 00 bnd jmpq c <foo1> 8: R_X86_64_PC32_BND \*ABS\*\+0x10003c
0+c <foo1>:
[ ]*[a-f0-9]+: f2 eb fd bnd jmp c <foo1>
[ ]*[a-f0-9]+: f2 72 fa bnd jb c <foo1>
[ ]*[a-f0-9]+: f2 e8 f4 ff ff ff bnd callq c <foo1>
[ ]*[a-f0-9]+: f2 eb 09 bnd jmp 24 <foo2>
[ ]*[a-f0-9]+: f2 72 06 bnd jb 24 <foo2>
[ ]*[a-f0-9]+: f2 e8 00 00 00 00 bnd callq 24 <foo2>
0+24 <foo2>:
[ ]*[a-f0-9]+: f2 e9 00 00 00 00 bnd jmpq 2a <foo2\+0x6> 26: R_X86_64_PC32_BND foo-0x4
[ ]*[a-f0-9]+: f2 0f 82 00 00 00 00 bnd jb 31 <foo2\+0xd> 2d: R_X86_64_PC32_BND foo-0x4
[ ]*[a-f0-9]+: f2 e8 00 00 00 00 bnd callq 37 <foo2\+0x13> 33: R_X86_64_PC32_BND foo-0x4
[ ]*[a-f0-9]+: f2 e9 00 00 00 00 bnd jmpq 3d <foo2\+0x19> 39: R_X86_64_PLT32_BND foo-0x4
[ ]*[a-f0-9]+: f2 0f 82 00 00 00 00 bnd jb 44 <foo2\+0x20> 40: R_X86_64_PLT32_BND foo-0x4
[ ]*[a-f0-9]+: f2 e8 00 00 00 00 bnd callq 4a <foo2\+0x26> 46: R_X86_64_PLT32_BND foo-0x4

18
gas/testsuite/gas/i386/x86-64-mpx-branch-1.s Normal file
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@ -0,0 +1,18 @@
.text
bnd call 0x100040
bnd jmp 0x100040
foo1:
bnd jmp foo1
bnd jb foo1
bnd call foo1
bnd jmp foo2
bnd jb foo2
bnd call foo2
foo2:
bnd jmp foo
bnd jb foo
bnd call foo
bnd jmp foo@PLT
bnd jb foo@PLT
bnd call foo@plt

28
gas/testsuite/gas/i386/x86-64-mpx-branch-2.d Normal file
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@ -0,0 +1,28 @@
#as: -J -madd-bnd-prefix
#objdump: -dwr
#name: x86-64 branch with BND prefix
.*: +file format .*
Disassembly of section .text:
0+ <foo1-0xc>:
[ ]*[a-f0-9]+: f2 e8 00 00 00 00 bnd callq 6 <foo1-0x6> 2: R_X86_64_PC32_BND \*ABS\*\+0x10003c
[ ]*[a-f0-9]+: f2 e9 00 00 00 00 bnd jmpq c <foo1> 8: R_X86_64_PC32_BND \*ABS\*\+0x10003c
0+c <foo1>:
[ ]*[a-f0-9]+: f2 eb fd bnd jmp c <foo1>
[ ]*[a-f0-9]+: f2 72 fa bnd jb c <foo1>
[ ]*[a-f0-9]+: f2 e8 f4 ff ff ff bnd callq c <foo1>
[ ]*[a-f0-9]+: f2 eb 09 bnd jmp 24 <foo2>
[ ]*[a-f0-9]+: f2 72 06 bnd jb 24 <foo2>
[ ]*[a-f0-9]+: f2 e8 00 00 00 00 bnd callq 24 <foo2>
0+24 <foo2>:
[ ]*[a-f0-9]+: f2 e9 00 00 00 00 bnd jmpq 2a <foo2\+0x6> 26: R_X86_64_PC32_BND foo-0x4
[ ]*[a-f0-9]+: f2 0f 82 00 00 00 00 bnd jb 31 <foo2\+0xd> 2d: R_X86_64_PC32_BND foo-0x4
[ ]*[a-f0-9]+: f2 e8 00 00 00 00 bnd callq 37 <foo2\+0x13> 33: R_X86_64_PC32_BND foo-0x4
[ ]*[a-f0-9]+: f2 e9 00 00 00 00 bnd jmpq 3d <foo2\+0x19> 39: R_X86_64_PLT32_BND foo-0x4
[ ]*[a-f0-9]+: f2 0f 82 00 00 00 00 bnd jb 44 <foo2\+0x20> 40: R_X86_64_PLT32_BND foo-0x4
[ ]*[a-f0-9]+: f2 e8 00 00 00 00 bnd callq 4a <foo2\+0x26> 46: R_X86_64_PLT32_BND foo-0x4

18
gas/testsuite/gas/i386/x86-64-mpx-branch-2.s Normal file
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@ -0,0 +1,18 @@
.text
call 0x100040
jmp 0x100040
foo1:
jmp foo1
jb foo1
call foo1
jmp foo2
jb foo2
call foo2
foo2:
jmp foo
jb foo
call foo
jmp foo@PLT
jb foo@PLT
call foo@plt

4
include/elf/ChangeLog
View File

@ -1,3 +1,7 @@
2013-11-17 H.J. Lu <hongjiu.lu@intel.com>
* x86-64.h: Add R_X86_64_PC32_BND and R_X86_64_PLT32_BND.
2013-11-13 Yufeng Zhang <yufeng.zhang@arm.com>
* aarch64.h: Define R_AARCH64_TLS_DTPMOD64,

4
include/elf/x86-64.h
View File

@ -74,6 +74,10 @@ START_RELOC_NUMBERS (elf_x86_64_reloc_type)
RELOC_NUMBER (R_X86_64_TLSDESC, 36) /* 2x64-bit TLS descriptor. */
RELOC_NUMBER (R_X86_64_IRELATIVE, 37) /* Adjust indirectly by program base */
RELOC_NUMBER (R_X86_64_RELATIVE64, 38) /* 64bit adjust by program base */
RELOC_NUMBER (R_X86_64_PC32_BND, 39) /* PC relative 32 bit
signed with BND prefix */
RELOC_NUMBER (R_X86_64_PLT32_BND, 40) /* 32 bit PLT address with
BND prefix */
RELOC_NUMBER (R_X86_64_GNU_VTINHERIT, 250) /* GNU C++ hack */
RELOC_NUMBER (R_X86_64_GNU_VTENTRY, 251) /* GNU C++ hack */
END_RELOC_NUMBERS (R_X86_64_max)

10
ld/testsuite/ChangeLog
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@ -1,3 +1,13 @@
2013-11-17 H.J. Lu <hongjiu.lu@intel.com>
* ld-x86-64/mpx.exp: New file.
* ld-x86-64/mpx1.out: Likewise.
* ld-x86-64/mpx1a.c: Likewise.
* ld-x86-64/mpx1a.rd: Likewise.
* ld-x86-64/mpx1b.c: Likewise.
* ld-x86-64/mpx1c.c: Likewise.
* ld-x86-64/mpx1c.rd: Likewise.
2013-11-14 Will Newton <will.newton@linaro.org>
* ld-arm/script-type.sym: Remove redundant STT_FILE symbol.

60
ld/testsuite/ld-x86-64/mpx.exp Normal file
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@ -0,0 +1,60 @@
# Expect script for ELF MPX tests.
# Copyright 2013
# Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.
#
# The following tests require running the executable generated by ld,
# or enough of a build environment to create a fully linked executable.
# This is not commonly available when testing a cross-built linker.
if ![isnative] {
return
}
# Only on Linux for now.
if ![istarget "x86_64-*-linux*"] {
return
}
# Check to see if the C compiler works
if { [which $CC] == 0 } {
return
}
set build_tests {
{"Build libmpx1a.a"
"" "-Wa,-madd-bnd-prefix -fPIC"
{mpx1a.c} {{readelf {-r --wide} mpx1a.rd}} "libmpx1a.a"}
{"Build libmpx1b.a"
"" ""
{mpx1b.c} {} "libmpx1b.a"}
{"Build libmpx1c.a"
"" "-Wa,-madd-bnd-prefix"
{mpx1c.c} {{readelf {-r --wide} mpx1c.rd}} "libmpx1c.a"}
}
run_cc_link_tests $build_tests
set run_tests {
{"Run mpx1"
"tmpdir/mpx1a.o tmpdir/mpx1b.o tmpdir/mpx1c.o" ""
{dummy.s} "mpx1" "mpx1.out"}
}
run_ld_link_exec_tests [] $run_tests

2
ld/testsuite/ld-x86-64/mpx1.out Normal file
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@ -0,0 +1,2 @@
foo1
foo2

7
ld/testsuite/ld-x86-64/mpx1a.c Normal file
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@ -0,0 +1,7 @@
#include <stdio.h>
void
foo1 (void)
{
printf ("foo1\n");
}

3
ld/testsuite/ld-x86-64/mpx1a.rd Normal file
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@ -0,0 +1,3 @@
#...
[0-9a-f ]+R_X86_64_PLT32_BND +0+ +.*
#...

7
ld/testsuite/ld-x86-64/mpx1b.c Normal file
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@ -0,0 +1,7 @@
#include <stdio.h>
void
foo2 (void)
{
printf ("foo2\n");
}

10
ld/testsuite/ld-x86-64/mpx1c.c Normal file
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@ -0,0 +1,10 @@
extern void foo1 (void);
extern void foo2 (void);
int
main (void)
{
foo1 ();
foo2 ();
return 0;
}

3
ld/testsuite/ld-x86-64/mpx1c.rd Normal file
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@ -0,0 +1,3 @@
#...
[0-9a-f ]+R_X86_64_PC32_BND +0+ +.*
#...