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authorWalter Lee <walt@tilera.com>2012-08-28 02:43:22 +0000
committerWalter Lee <walt@tilera.com>2012-08-28 02:43:22 +0000
commite5b95258d9dd1ecc4a53baf56308ce78f19f4904 (patch)
tree3f98a860be8a85ea99ae0519037d37c5801c123f /bfd/elfxx-tilegx.c
parentaedbcd6364b2c09c7d6a193d46b064b42013b857 (diff)
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Add support for constructing pc-relative addresses to the plt, by
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.
Diffstat (limited to 'bfd/elfxx-tilegx.c')
-rw-r--r--bfd/elfxx-tilegx.c117
1 files changed, 87 insertions, 30 deletions
diff --git a/bfd/elfxx-tilegx.c b/bfd/elfxx-tilegx.c
index 6f748ec..1f5c458 100644
--- a/bfd/elfxx-tilegx.c
+++ b/bfd/elfxx-tilegx.c
@@ -490,21 +490,21 @@ static reloc_howto_type tilegx_elf_howto_table [] =
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_GOT, 0),
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_GOT, 0),
- /* These relocs are currently not defined. */
- EMPTY_HOWTO (66),
- EMPTY_HOWTO (67),
- EMPTY_HOWTO (68),
- EMPTY_HOWTO (69),
- EMPTY_HOWTO (70),
- EMPTY_HOWTO (71),
+
+ TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW0_PLT_PCREL, 0),
+ TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW0_PLT_PCREL, 0),
+ TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW1_PLT_PCREL, 16),
+ TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW1_PLT_PCREL, 16),
+ TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW2_PLT_PCREL, 32),
+ TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW2_PLT_PCREL, 32),
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_GOT, 0),
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_GOT, 0),
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_GOT, 16),
TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_GOT, 16),
- /* These relocs are currently not defined. */
- EMPTY_HOWTO (76),
- EMPTY_HOWTO (77),
+
+ TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW3_PLT_PCREL, 48),
+ TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW3_PLT_PCREL, 48),
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_GD, 0),
TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_GD, 0),
@@ -530,12 +530,13 @@ static reloc_howto_type tilegx_elf_howto_table [] =
TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X0_HW0_TLS_IE, 0),
TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X1_HW0_TLS_IE, 0),
- EMPTY_HOWTO (94),
- EMPTY_HOWTO (95),
- EMPTY_HOWTO (96),
- EMPTY_HOWTO (97),
- EMPTY_HOWTO (98),
- EMPTY_HOWTO (99),
+
+ TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL, 0),
+ TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL, 0),
+ TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL, 16),
+ TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL, 16),
+ TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL, 32),
+ TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL, 32),
#define TILEGX_IMM16_HOWTO_LAST_TLS_IE(name, rshift) \
HOWTO (name, rshift, 1, 16, FALSE, 0, \
@@ -713,10 +714,18 @@ static const reloc_map tilegx_reloc_map [] =
SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PCREL)
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_GOT)
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_GOT)
+ SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PLT_PCREL)
+ SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PLT_PCREL)
+ SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PLT_PCREL)
+ SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PLT_PCREL)
+ SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PLT_PCREL)
+ SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PLT_PCREL)
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_GOT)
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_GOT)
SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_GOT)
SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_GOT)
+ SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PLT_PCREL)
+ SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PLT_PCREL)
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_GD)
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_GD)
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_LE)
@@ -731,6 +740,12 @@ static const reloc_map tilegx_reloc_map [] =
SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_GD)
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_IE)
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_IE)
+ SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL)
+ SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL)
+ SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL)
+ SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL)
+ SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL)
+ SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL)
SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_IE)
SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_IE)
SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_IE)
@@ -1027,18 +1042,10 @@ static const tilegx_create_func reloc_to_create_func[] =
create_Imm16_X1,
create_Imm16_X0,
create_Imm16_X1,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
create_Imm16_X0,
create_Imm16_X1,
create_Imm16_X0,
create_Imm16_X1,
- NULL,
- NULL,
create_Imm16_X0,
create_Imm16_X1,
create_Imm16_X0,
@@ -1051,16 +1058,24 @@ static const tilegx_create_func reloc_to_create_func[] =
create_Imm16_X1,
create_Imm16_X0,
create_Imm16_X1,
- NULL,
- NULL,
+ create_Imm16_X0,
+ create_Imm16_X1,
+ create_Imm16_X0,
+ create_Imm16_X1,
+ create_Imm16_X0,
+ create_Imm16_X1,
create_Imm16_X0,
create_Imm16_X1,
NULL,
NULL,
- NULL,
- NULL,
- NULL,
- NULL,
+ create_Imm16_X0,
+ create_Imm16_X1,
+ create_Imm16_X0,
+ create_Imm16_X1,
+ create_Imm16_X0,
+ create_Imm16_X1,
+ create_Imm16_X0,
+ create_Imm16_X1,
create_Imm16_X0,
create_Imm16_X1,
create_Imm16_X0,
@@ -1855,6 +1870,20 @@ tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
/* Fall through */
case R_TILEGX_JUMPOFF_X1_PLT:
+ case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
/* 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 without
@@ -2248,6 +2277,20 @@ tilegx_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
/* Fall through. */
case R_TILEGX_JUMPOFF_X1_PLT:
+ case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
if (h != NULL)
{
if (h->plt.refcount > 0)
@@ -3440,6 +3483,20 @@ tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
break;
case R_TILEGX_JUMPOFF_X1_PLT:
+ case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
+ case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
/* Relocation is to the entry for this symbol in the
procedure linkage table. */
BFD_ASSERT (h != NULL);