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Add support for the TLV relocation generated by LLVM for x86_64 MACH-O targets. 

PR 23297
	* mach-o-x86-64.c (x86_64_howto_table): Add entry for
	BFD_RELOC_MACH_O_X86_64_RELOC_TLV.
	(bfd_mach_o_x86_64_canonicalize_one_reloc): Handle the new reloc.
	(bfd_mach_o_x86_64_swap_reloc_out): Likewise.
	* reloc.c (BFD_RELOC_MACH_O_X86_64_TV): New entry.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
This commit is contained in:
Mephi 2018-06-18 12:56:44 +01:00 committed by Nick Clifton
parent 02895270ec
commit ed1299fe46
5 changed files with 36 additions and 0 deletions
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11
bfd/ChangeLog
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@ -1,3 +1,14 @@
2018-06-18 Mephi <mephi42@gmail.com>
PR 23297
* mach-o-x86-64.c (x86_64_howto_table): Add entry for
BFD_RELOC_MACH_O_X86_64_RELOC_TLV.
(bfd_mach_o_x86_64_canonicalize_one_reloc): Handle the new reloc.
(bfd_mach_o_x86_64_swap_reloc_out): Likewise.
* reloc.c (BFD_RELOC_MACH_O_X86_64_TV): New entry.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
2018-06-14 Faraz Shahbazker <Faraz.Shahbazker@mips.com>
* elfxx-mips.c (print_mips_ases): Add GINV extension.

3
bfd/bfd-in2.h
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@ -5755,6 +5755,9 @@ the linker could optimize the movq to a leaq if possible. */
/* Same as BFD_RELOC_32_PCREL but with an implicit -4 addend. */
BFD_RELOC_MACH_O_X86_64_PCREL32_4,
/* Used when referencing a TLV entry. */
BFD_RELOC_MACH_O_X86_64_TLV,
/* Addend for PAGE or PAGEOFF. */
BFD_RELOC_MACH_O_ARM64_ADDEND,

1
bfd/libbfd.h
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@ -2852,6 +2852,7 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
"BFD_RELOC_MACH_O_X86_64_PCREL32_1",
"BFD_RELOC_MACH_O_X86_64_PCREL32_2",
"BFD_RELOC_MACH_O_X86_64_PCREL32_4",
"BFD_RELOC_MACH_O_X86_64_TLV",
"BFD_RELOC_MACH_O_ARM64_ADDEND",
"BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGE21",
"BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGEOFF12",

17
bfd/mach-o-x86-64.c
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@ -117,6 +117,11 @@ static reloc_howto_type x86_64_howto_table[]=
complain_overflow_bitfield,
NULL, "BRANCH8",
FALSE, 0xff, 0xff, TRUE),
/* 12 */
HOWTO(BFD_RELOC_MACH_O_X86_64_TLV, 0, 2, 32, TRUE, 0,
complain_overflow_bitfield,
NULL, "TLV",
FALSE, 0xffffffff, 0xffffffff, TRUE),
};
static bfd_boolean
@ -220,6 +225,13 @@ bfd_mach_o_x86_64_canonicalize_one_reloc (bfd * abfd,
return TRUE;
}
break;
case BFD_MACH_O_X86_64_RELOC_TLV:
if (reloc.r_length == 2 && reloc.r_pcrel && reloc.r_extern)
{
res->howto = &x86_64_howto_table[12];
return TRUE;
}
break;
default:
return FALSE;
}
@ -288,6 +300,11 @@ bfd_mach_o_x86_64_swap_reloc_out (arelent *rel, bfd_mach_o_reloc_info *rinfo)
rinfo->r_pcrel = 1;
rinfo->r_length = 2;
break;
case BFD_RELOC_MACH_O_X86_64_TLV:
rinfo->r_type = BFD_MACH_O_X86_64_RELOC_TLV;
rinfo->r_pcrel = 1;
rinfo->r_length = 2;
break;
default:
return FALSE;
}

4
bfd/reloc.c
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@ -6816,6 +6816,10 @@ ENUM
BFD_RELOC_MACH_O_X86_64_PCREL32_4
ENUMDOC
Same as BFD_RELOC_32_PCREL but with an implicit -4 addend.
ENUM
BFD_RELOC_MACH_O_X86_64_TLV
ENUMDOC
Used when referencing a TLV entry.
ENUM