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Add support for constructing pc-relative addresses to the plt, by

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adding the necessary assembly operators and relocations.

bfd:
	* reloc.c (Add BFD_RELOC_TILEGX_IMM16_X0_HW0_PLT_PCREL,
	BFD_RELOC_TILEGX_IMM16_X1_HW0_PLT_PCREL,
	BFD_RELOC_TILEGX_IMM16_X0_HW1_PLT_PCREL,
	BFD_RELOC_TILEGX_IMM16_X1_HW1_PLT_PCREL,
	BFD_RELOC_TILEGX_IMM16_X0_HW2_PLT_PCREL,
	BFD_RELOC_TILEGX_IMM16_X1_HW2_PLT_PCREL,
	BFD_RELOC_TILEGX_IMM16_X0_HW3_PLT_PCREL,
	BFD_RELOC_TILEGX_IMM16_X1_HW3_PLT_PCREL,
	BFD_RELOC_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL,
	BFD_RELOC_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL,
	BFD_RELOC_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL,
	BFD_RELOC_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL,
	BFD_RELOC_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL,
	BFD_RELOC_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL): new relocations.
	* elfxx-tilegx.c (tilegx_elf_howto_table): Handle new relocations.
	(tilegx_reloc_map): Ditto.
	(reloc_to_create_func): Ditto.
	(tilegx_elf_check_relocs): Ditto.
	(tilegx_elf_gc_sweep_hook): Ditto.
	(tilegx_elf_relocate_section): Ditto.
	* libbfd.h: Regenerate.
	* bfd-in2.h: Regenerate.

gas:
	* tc-tilegx.c (O_hw0_plt): Define operator.
	(O_hw1_plt): Ditto.
	(O_hw1_last_plt): Ditto.
	(O_hw2_last_plt): Ditto.
	(md_begin): Handle new operators.
	(emit_tilegx_instruction): Ditto.
	(md_apply_fix): Ditto.
	* doc/c-tilegx.texi: Document new operators.

include/elf:
	* tilegx.h (R_TILEGX_IMM16_X0_HW0_PLT_PCREL): New relocation.
	(R_TILEGX_IMM16_X1_HW0_PLT_PCREL): Ditto.
	(R_TILEGX_IMM16_X0_HW1_PLT_PCREL): Ditto.
	(R_TILEGX_IMM16_X1_HW1_PLT_PCREL): Ditto.
	(R_TILEGX_IMM16_X0_HW2_PLT_PCREL): Ditto.
	(R_TILEGX_IMM16_X1_HW2_PLT_PCREL): Ditto.
	(R_TILEGX_IMM16_X0_HW3_PLT_PCREL): Ditto.
	(R_TILEGX_IMM16_X1_HW3_PLT_PCREL): Ditto.
	(R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL): Ditto.
	(R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL): Ditto.
	(R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL): Ditto.
	(R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL): Ditto.
	(R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL	): Ditto.
	(R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL): Ditto.
This commit is contained in:
Walter Lee
2012-08-28 02:43:22 +00:00
parent 4acb2ffac7
commit aafdd9a5fc
2 changed files with 34 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
include/elf/ChangeLog
View File

@@ -1,3 +1,20 @@
2012-08-27 Walter Lee <walt@tilera.com>
* tilegx.h (R_TILEGX_IMM16_X0_HW0_PLT_PCREL): New relocation.
(R_TILEGX_IMM16_X1_HW0_PLT_PCREL): Ditto.
(R_TILEGX_IMM16_X0_HW1_PLT_PCREL): Ditto.
(R_TILEGX_IMM16_X1_HW1_PLT_PCREL): Ditto.
(R_TILEGX_IMM16_X0_HW2_PLT_PCREL): Ditto.
(R_TILEGX_IMM16_X1_HW2_PLT_PCREL): Ditto.
(R_TILEGX_IMM16_X0_HW3_PLT_PCREL): Ditto.
(R_TILEGX_IMM16_X1_HW3_PLT_PCREL): Ditto.
(R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL): Ditto.
(R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL): Ditto.
(R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL): Ditto.
(R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL): Ditto.
(R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL ): Ditto.
(R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL): Ditto.
2012-08-13 Ian Bolton <ian.bolton@arm.com>
Laurent Desnogues <laurent.desnogues@arm.com>
Jim MacArthur <jim.macarthur@arm.com>

20
include/elf/tilegx.h
View File

@@ -104,13 +104,21 @@ START_RELOC_NUMBERS (elf_tilegx_reloc_type)
RELOC_NUMBER (R_TILEGX_IMM16_X0_HW0_GOT, 64)
RELOC_NUMBER (R_TILEGX_IMM16_X1_HW0_GOT, 65)
/* Relocs 66-71 are currently not defined. */
RELOC_NUMBER (R_TILEGX_IMM16_X0_HW0_PLT_PCREL, 66)
RELOC_NUMBER (R_TILEGX_IMM16_X1_HW0_PLT_PCREL, 67)
RELOC_NUMBER (R_TILEGX_IMM16_X0_HW1_PLT_PCREL, 68)
RELOC_NUMBER (R_TILEGX_IMM16_X1_HW1_PLT_PCREL, 69)
RELOC_NUMBER (R_TILEGX_IMM16_X0_HW2_PLT_PCREL, 70)
RELOC_NUMBER (R_TILEGX_IMM16_X1_HW2_PLT_PCREL, 71)
RELOC_NUMBER (R_TILEGX_IMM16_X0_HW0_LAST_GOT, 72)
RELOC_NUMBER (R_TILEGX_IMM16_X1_HW0_LAST_GOT, 73)
RELOC_NUMBER (R_TILEGX_IMM16_X0_HW1_LAST_GOT, 74)
RELOC_NUMBER (R_TILEGX_IMM16_X1_HW1_LAST_GOT, 75)
/* Relocs 76-77 are currently not defined. */
RELOC_NUMBER (R_TILEGX_IMM16_X0_HW3_PLT_PCREL, 76)
RELOC_NUMBER (R_TILEGX_IMM16_X1_HW3_PLT_PCREL, 77)
RELOC_NUMBER (R_TILEGX_IMM16_X0_HW0_TLS_GD, 78)
RELOC_NUMBER (R_TILEGX_IMM16_X1_HW0_TLS_GD, 79)
@@ -128,7 +136,13 @@ START_RELOC_NUMBERS (elf_tilegx_reloc_type)
RELOC_NUMBER (R_TILEGX_IMM16_X0_HW0_TLS_IE, 92)
RELOC_NUMBER (R_TILEGX_IMM16_X1_HW0_TLS_IE, 93)
/* Relocs 94-99 are currently not defined. */
RELOC_NUMBER (R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL, 94)
RELOC_NUMBER (R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL, 95)
RELOC_NUMBER (R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL, 96)
RELOC_NUMBER (R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL, 97)
RELOC_NUMBER (R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL, 98)
RELOC_NUMBER (R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL, 99)
RELOC_NUMBER (R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE, 100)
RELOC_NUMBER (R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE, 101)