#define bfd_elf64_mkobject ppc64_elf_mkobject
#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
#define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup
-#define bfd_elf64_bfd_merge_private_bfd_data _bfd_generic_verify_endian_match
+#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
+#define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data
#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
#define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
#define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
#define elf_backend_check_directives ppc64_elf_process_dot_syms
-#define elf_backend_as_needed_cleanup ppc64_elf_as_needed_cleanup
+#define elf_backend_notice_as_needed ppc64_elf_notice_as_needed
#define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup
#define elf_backend_check_relocs ppc64_elf_check_relocs
#define elf_backend_gc_keep ppc64_elf_gc_keep
#define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
#define elf_backend_special_sections ppc64_elf_special_sections
#define elf_backend_post_process_headers _bfd_elf_set_osabi
+#define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute
/* The name of the dynamic interpreter. This is put in the .interp
section. */
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
/* The size in bytes of an entry in the procedure linkage table. */
-#define PLT_ENTRY_SIZE 24
+#define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8)
/* The initial size of the plt reserved for the dynamic linker. */
-#define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
+#define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16)
+
+/* Offsets to some stack save slots. */
+#define STK_LR 16
+#define STK_TOC(htab) (htab->opd_abi ? 40 : 24)
+/* This one is dodgy. ABIv2 does not have a linker word, so use the
+ CR save slot. Used only by optimised __tls_get_addr call stub,
+ relying on __tls_get_addr_opt not saving CR.. */
+#define STK_LINKER(htab) (htab->opd_abi ? 32 : 8)
/* TOC base pointers offset from start of TOC. */
#define TOC_BASE_OFF 0x8000
/* .plt call stub instructions. The normal stub is like this, but
sometimes the .plt entry crosses a 64k boundary and we need to
- insert an addi to adjust r12. */
-#define PLT_CALL_STUB_SIZE (7*4)
-#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
-#define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
-#define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
-#define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
-#define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
- /* ld %r11,xxx+16@l(%r12) */
+ insert an addi to adjust r11. */
+#define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */
+#define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */
+#define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */
+#define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */
+#define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */
+#define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */
#define BCTR 0x4e800420 /* bctr */
-
-#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,off@ha */
-#define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,off@l */
+#define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */
#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
-#define XOR_R11_R11_R11 0x7d6b5a78 /* xor %r11,%r11,%r11 */
-#define ADD_R12_R12_R11 0x7d8c5a14 /* add %r12,%r12,%r11 */
+#define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */
+#define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */
+#define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */
#define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */
#define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */
#define BNECTR 0x4ca20420 /* bnectr+ */
#define BNECTR_P4 0x4ce20420 /* bnectr+ */
+#define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */
#define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */
#define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */
-#define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
+#define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */
/* glink call stub instructions. We enter with the index in R0. */
#define GLINK_CALL_STUB_SIZE (16*4)
#define BCL_20_31 0x429f0005 /* bcl 20,31,1f */
/* 1: */
#define MFLR_R11 0x7d6802a6 /* mflr %11 */
-#define LD_R2_M16R11 0xe84bfff0 /* ld %2,(0b-1b)(%11) */
+ /* ld %2,(0b-1b)(%11) */
#define MTLR_R12 0x7d8803a6 /* mtlr %12 */
-#define ADD_R12_R2_R11 0x7d825a14 /* add %12,%2,%11 */
- /* ld %11,0(%12) */
- /* ld %2,8(%12) */
- /* mtctr %11 */
- /* ld %11,16(%12) */
+#define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */
+ /* ld %12,0(%11) */
+ /* ld %2,8(%11) */
+ /* mtctr %12 */
+ /* ld %11,16(%11) */
/* bctr */
+#define MFLR_R0 0x7c0802a6 /* mflr %r0 */
+#define MTLR_R0 0x7c0803a6 /* mtlr %r0 */
+#define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */
+#define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */
+#define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */
/* Pad with this. */
#define NOP 0x60000000
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC64_ADDR16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_ha_reloc, /* special_function */
"R_PPC64_ADDR16_HA", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
+ complain_overflow_signed,/* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_GOT16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
+ complain_overflow_signed,/* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_GOT16_HA", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_PLT16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_PLT16_HA", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_sectoff_reloc, /* special_function */
"R_PPC64_SECTOFF_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_sectoff_ha_reloc, /* special_function */
"R_PPC64_SECTOFF_HA", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_toc_reloc, /* special_function */
"R_PPC64_TOC16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_toc_ha_reloc, /* special_function */
"R_PPC64_TOC16_HA", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_PLTGOT16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_PLTGOT16_HA", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_DTPREL16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_DTPREL16_HA", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_TPREL16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_TPREL16_HA", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_GOT_TLSGD16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_GOT_TLSGD16_HA", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_GOT_TLSLD16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_GOT_TLSLD16_HA", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_GOT_DTPREL16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_GOT_DTPREL16_HA", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_GOT_TPREL16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_unhandled_reloc, /* special_function */
"R_PPC64_GOT_TPREL16_HA", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC64_REL16_HI", /* name */
FALSE, /* partial_inplace */
16, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
- complain_overflow_dont, /* complain_on_overflow */
+ complain_overflow_signed, /* complain_on_overflow */
ppc64_elf_ha_reloc, /* special_function */
"R_PPC64_REL16_HA", /* name */
FALSE, /* partial_inplace */
0xffff, /* dst_mask */
TRUE), /* pcrel_offset */
+ /* Like R_PPC64_ADDR16_HI, but no overflow. */
+ HOWTO (R_PPC64_ADDR16_HIGH, /* type */
+ 16, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_PPC64_ADDR16_HIGH", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Like R_PPC64_ADDR16_HA, but no overflow. */
+ HOWTO (R_PPC64_ADDR16_HIGHA, /* type */
+ 16, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ ppc64_elf_ha_reloc, /* special_function */
+ "R_PPC64_ADDR16_HIGHA", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Like R_PPC64_DTPREL16_HI, but no overflow. */
+ HOWTO (R_PPC64_DTPREL16_HIGH,
+ 16, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ ppc64_elf_unhandled_reloc, /* special_function */
+ "R_PPC64_DTPREL16_HIGH", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Like R_PPC64_DTPREL16_HA, but no overflow. */
+ HOWTO (R_PPC64_DTPREL16_HIGHA,
+ 16, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ ppc64_elf_unhandled_reloc, /* special_function */
+ "R_PPC64_DTPREL16_HIGHA", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Like R_PPC64_TPREL16_HI, but no overflow. */
+ HOWTO (R_PPC64_TPREL16_HIGH,
+ 16, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ ppc64_elf_unhandled_reloc, /* special_function */
+ "R_PPC64_TPREL16_HIGH", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* Like R_PPC64_TPREL16_HA, but no overflow. */
+ HOWTO (R_PPC64_TPREL16_HIGHA,
+ 16, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ ppc64_elf_unhandled_reloc, /* special_function */
+ "R_PPC64_TPREL16_HIGHA", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
/* GNU extension to record C++ vtable hierarchy. */
HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
0, /* rightshift */
break;
case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
break;
+ case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH;
+ break;
case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
break;
+ case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA;
+ break;
case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
break;
case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
break;
case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
break;
+ case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH;
+ break;
case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
break;
+ case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA;
+ break;
case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
break;
case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
break;
case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
break;
+ case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH;
+ break;
case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
break;
+ case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA;
+ break;
case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
break;
case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
if (TOCstart == 0)
- TOCstart = ppc64_elf_toc (input_section->output_section->owner);
+ TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
/* Subtract the TOC base address. */
reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
if (TOCstart == 0)
- TOCstart = ppc64_elf_toc (input_section->output_section->owner);
+ TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
/* Subtract the TOC base address. */
reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
if (TOCstart == 0)
- TOCstart = ppc64_elf_toc (input_section->output_section->owner);
+ TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner);
octets = reloc_entry->address * bfd_octets_per_byte (abfd);
bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
sections means we potentially need one of these for each input bfd. */
struct got_entry tlsld_got;
- /* A copy of relocs before they are modified for --emit-relocs. */
- Elf_Internal_Rela *opd_relocs;
+ union {
+ /* A copy of relocs before they are modified for --emit-relocs. */
+ Elf_Internal_Rela *relocs;
+
+ /* Section contents. */
+ bfd_byte *contents;
+ } opd;
/* Nonzero if this bfd has small toc/got relocs, ie. that expect
the reloc to be in the range -32768 to 32767. */
return FALSE;
/* pr_cursig */
- elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
+ elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
/* pr_pid */
- elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 32);
+ elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32);
/* pr_reg */
offset = 112;
if (note->descsz != 136)
return FALSE;
- elf_tdata (abfd)->core_pid
+ elf_tdata (abfd)->core->pid
= bfd_get_32 (abfd, note->descdata + 24);
- elf_tdata (abfd)->core_program
+ elf_tdata (abfd)->core->program
= _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
- elf_tdata (abfd)->core_command
+ elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
return TRUE;
return &ppc64_elf_section_data (sec)->u.opd;
return NULL;
}
+
+static inline int
+abiversion (bfd *abfd)
+{
+ return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI;
+}
+
+static inline void
+set_abiversion (bfd *abfd, int ver)
+{
+ elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI;
+ elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI;
+}
\f
/* Parameters for the qsort hook. */
static bfd_boolean synthetic_relocatable;
long count;
char *names;
long symcount, codesecsym, codesecsymend, secsymend, opdsymend;
- asection *opd;
+ asection *opd = NULL;
bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
asymbol **syms;
+ int abi = abiversion (abfd);
*ret = NULL;
- opd = bfd_get_section_by_name (abfd, ".opd");
- if (opd == NULL)
- return 0;
+ if (abi < 2)
+ {
+ opd = bfd_get_section_by_name (abfd, ".opd");
+ if (opd == NULL && abi == 1)
+ return 0;
+ }
symcount = static_count;
if (!relocatable)
else
{
bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
- bfd_byte *contents;
+ bfd_byte *contents = NULL;
size_t size;
long plt_count = 0;
bfd_vma glink_vma = 0, resolv_vma = 0;
asection *dynamic, *glink = NULL, *relplt = NULL;
arelent *p;
- if (!bfd_malloc_and_get_section (abfd, opd, &contents))
+ if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents))
{
+ free_contents_and_exit:
if (contents)
- {
- free_contents_and_exit:
- free (contents);
- }
+ free (contents);
count = -1;
goto done;
}
if (dyn.d_tag == DT_PPC64_GLINK)
{
- /* The first glink stub starts at offset 32; see comment in
- ppc64_elf_finish_dynamic_sections. */
- glink_vma = dyn.d_un.d_val + 32;
+ /* The first glink stub starts at offset 32; see
+ comment in ppc64_elf_finish_dynamic_sections. */
+ glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4;
/* The .glink section usually does not survive the final
link; search for the section (usually .text) where the
glink stubs now reside. */
/* Determine __glink trampoline by reading the relative branch
from the first glink stub. */
bfd_byte buf[4];
- if (bfd_get_section_contents (abfd, glink, buf,
- glink_vma + 4 - glink->vma, 4))
+ unsigned int off = 0;
+
+ while (bfd_get_section_contents (abfd, glink, buf,
+ glink_vma + off - glink->vma, 4))
{
unsigned int insn = bfd_get_32 (abfd, buf);
insn ^= B_DOT;
if ((insn & ~0x3fffffc) == 0)
- resolv_vma = glink_vma + 4 + (insn ^ 0x2000000) - 0x2000000;
+ {
+ resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000;
+ break;
+ }
+ off += 4;
+ if (off > 4)
+ break;
}
if (resolv_vma)
slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE))
goto free_contents_and_exit;
-
+
plt_count = relplt->size / sizeof (Elf64_External_Rela);
size += plt_count * sizeof (asymbol);
memcpy (names, "@plt", sizeof ("@plt"));
names += sizeof ("@plt");
s++;
- glink_vma += 8;
- if (i >= 0x8000)
+ if (abi < 2)
+ {
+ glink_vma += 8;
+ if (i >= 0x8000)
+ glink_vma += 4;
+ }
+ else
glink_vma += 4;
}
count += plt_count;
.
.
. .foo_stub:
- . addis 12,2,Lfoo@toc@ha # in practice, the call stub
- . addi 12,12,Lfoo@toc@l # is slightly optimized, but
- . std 2,40(1) # this is the general idea
- . ld 11,0(12)
- . ld 2,8(12)
- . mtctr 11
- . ld 11,16(12)
+ . std 2,40(1) # in practice, the call stub
+ . addis 11,2,Lfoo@toc@ha # is slightly optimized, but
+ . addi 11,11,Lfoo@toc@l # this is the general idea
+ . ld 12,0(11)
+ . ld 2,8(11)
+ . mtctr 12
+ . ld 11,16(11)
. bctr
.
. .section .plt
case R_PPC64_TPREL16_HA:
case R_PPC64_TPREL16_DS:
case R_PPC64_TPREL16_LO_DS:
+ case R_PPC64_TPREL16_HIGH:
+ case R_PPC64_TPREL16_HIGHA:
case R_PPC64_TPREL16_HIGHER:
case R_PPC64_TPREL16_HIGHERA:
case R_PPC64_TPREL16_HIGHEST:
ppc_stub_plt_branch:
Similar to the above, but a 24 bit branch in the stub section won't
reach its destination.
- . addis %r12,%r2,xxx@toc@ha
- . ld %r11,xxx@toc@l(%r12)
- . mtctr %r11
+ . addis %r11,%r2,xxx@toc@ha
+ . ld %r12,xxx@toc@l(%r11)
+ . mtctr %r12
. bctr
ppc_stub_plt_call:
Used to call a function in a shared library. If it so happens that
the plt entry referenced crosses a 64k boundary, then an extra
- "addi %r12,%r12,xxx@toc@l" will be inserted before the "mtctr".
- . addis %r12,%r2,xxx@toc@ha
+ "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr".
. std %r2,40(%r1)
- . ld %r11,xxx+0@toc@l(%r12)
- . mtctr %r11
- . ld %r2,xxx+8@toc@l(%r12)
- . ld %r11,xxx+16@toc@l(%r12)
+ . addis %r11,%r2,xxx@toc@ha
+ . ld %r12,xxx+0@toc@l(%r11)
+ . mtctr %r12
+ . ld %r2,xxx+8@toc@l(%r11)
+ . ld %r11,xxx+16@toc@l(%r11)
. bctr
ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
A ppc_stub_plt_branch with an r2 offset looks like:
. std %r2,40(%r1)
- . addis %r12,%r2,xxx@toc@ha
- . ld %r11,xxx@toc@l(%r12)
+ . addis %r11,%r2,xxx@toc@ha
+ . ld %r12,xxx@toc@l(%r11)
. addis %r2,%r2,off@ha
. addi %r2,%r2,off@l
- . mtctr %r11
+ . mtctr %r12
. bctr
In cases where the "addis" instruction would add zero, the "addis" is
struct ppc_link_hash_entry *h;
struct plt_entry *plt_ent;
- /* And the reloc addend that this was derived from. */
- bfd_vma addend;
-
/* Where this stub is being called from, or, in the case of combined
stub sections, the first input section in the group. */
asection *id_sec;
+
+ /* Symbol st_other. */
+ unsigned char other;
};
struct ppc_branch_hash_entry {
unsigned int iter;
};
+/* Used to track dynamic relocations for local symbols. */
+struct ppc_dyn_relocs
+{
+ struct ppc_dyn_relocs *next;
+
+ /* The input section of the reloc. */
+ asection *sec;
+
+ /* Total number of relocs copied for the input section. */
+ unsigned int count : 31;
+
+ /* Whether this entry is for STT_GNU_IFUNC symbols. */
+ unsigned int ifunc : 1;
+};
+
struct ppc_link_hash_entry
{
struct elf_link_hash_entry elf;
/* Alignment of PLT call stubs. */
unsigned int plt_stub_align:4;
+ /* Set if we're linking code with function descriptors. */
+ unsigned int opd_abi:1;
+
/* Set if PLT call stubs should load r11. */
unsigned int plt_static_chain:1;
eh->target_value = 0;
eh->target_section = NULL;
eh->h = NULL;
+ eh->plt_ent = NULL;
eh->id_sec = NULL;
+ eh->other = 0;
}
return entry;
bfd_hash_table_free (&htab->branch_hash_table);
if (htab->tocsave_htab)
htab_delete (htab->tocsave_htab);
- _bfd_generic_link_hash_table_free (hash);
+ _bfd_elf_link_hash_table_free (hash);
+}
+
+/* Create sections for linker generated code. */
+
+static bfd_boolean
+create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
+{
+ struct ppc_link_hash_table *htab;
+ flagword flags;
+
+ htab = ppc_hash_table (info);
+
+ /* Create .sfpr for code to save and restore fp regs. */
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
+ | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
+ htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr",
+ flags);
+ if (htab->sfpr == NULL
+ || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
+ return FALSE;
+
+ /* Create .glink for lazy dynamic linking support. */
+ htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink",
+ flags);
+ if (htab->glink == NULL
+ || ! bfd_set_section_alignment (dynobj, htab->glink, 3))
+ return FALSE;
+
+ if (!info->no_ld_generated_unwind_info)
+ {
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY | SEC_LINKER_CREATED);
+ htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj,
+ ".eh_frame",
+ flags);
+ if (htab->glink_eh_frame == NULL
+ || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2))
+ return FALSE;
+ }
+
+ flags = SEC_ALLOC | SEC_LINKER_CREATED;
+ htab->iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags);
+ if (htab->iplt == NULL
+ || ! bfd_set_section_alignment (dynobj, htab->iplt, 3))
+ return FALSE;
+
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
+ | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
+ htab->reliplt = bfd_make_section_anyway_with_flags (dynobj,
+ ".rela.iplt",
+ flags);
+ if (htab->reliplt == NULL
+ || ! bfd_set_section_alignment (dynobj, htab->reliplt, 3))
+ return FALSE;
+
+ /* Create branch lookup table for plt_branch stubs. */
+ flags = (SEC_ALLOC | SEC_LOAD
+ | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
+ htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt",
+ flags);
+ if (htab->brlt == NULL
+ || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
+ return FALSE;
+
+ if (!info->shared)
+ return TRUE;
+
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
+ | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
+ htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj,
+ ".rela.branch_lt",
+ flags);
+ if (htab->relbrlt == NULL
+ || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
+ return FALSE;
+
+ return TRUE;
}
/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
-void
+bfd_boolean
ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
{
struct ppc_link_hash_table *htab;
the start of the output TOC section. */
htab = ppc_hash_table (info);
if (htab == NULL)
- return;
+ return FALSE;
htab->stub_bfd = abfd;
htab->elf.dynobj = abfd;
+
+ if (info->relocatable)
+ return TRUE;
+
+ return create_linkage_sections (htab->elf.dynobj, info);
}
/* Build a name for an entry in the stub hash table. */
const Elf_Internal_Rela *rel)
{
char *stub_name;
- bfd_size_type len;
+ ssize_t len;
/* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
offsets from a sym as a branch target? In fact, we could
if (stub_name == NULL)
return stub_name;
- sprintf (stub_name, "%08x.%s+%x",
- input_section->id & 0xffffffff,
- h->elf.root.root.string,
- (int) rel->r_addend & 0xffffffff);
+ len = sprintf (stub_name, "%08x.%s+%x",
+ input_section->id & 0xffffffff,
+ h->elf.root.root.string,
+ (int) rel->r_addend & 0xffffffff);
}
else
{
if (stub_name == NULL)
return stub_name;
- sprintf (stub_name, "%08x.%x:%x+%x",
- input_section->id & 0xffffffff,
- sym_sec->id & 0xffffffff,
- (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
- (int) rel->r_addend & 0xffffffff);
+ len = sprintf (stub_name, "%08x.%x:%x+%x",
+ input_section->id & 0xffffffff,
+ sym_sec->id & 0xffffffff,
+ (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
+ (int) rel->r_addend & 0xffffffff);
}
- if (stub_name[len - 2] == '+' && stub_name[len - 1] == '0')
+ if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0')
stub_name[len - 2] = 0;
return stub_name;
}
return stub_entry;
}
-/* Create sections for linker generated code. */
-
-static bfd_boolean
-create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
-{
- struct ppc_link_hash_table *htab;
- flagword flags;
-
- htab = ppc_hash_table (info);
- if (htab == NULL)
- return FALSE;
-
- /* Create .sfpr for code to save and restore fp regs. */
- flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
- | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
- htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr",
- flags);
- if (htab->sfpr == NULL
- || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
- return FALSE;
-
- /* Create .glink for lazy dynamic linking support. */
- htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink",
- flags);
- if (htab->glink == NULL
- || ! bfd_set_section_alignment (dynobj, htab->glink, 3))
- return FALSE;
-
- if (!info->no_ld_generated_unwind_info)
- {
- flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY | SEC_LINKER_CREATED);
- htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj,
- ".eh_frame",
- flags);
- if (htab->glink_eh_frame == NULL
- || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2))
- return FALSE;
- }
-
- flags = SEC_ALLOC | SEC_LINKER_CREATED;
- htab->iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags);
- if (htab->iplt == NULL
- || ! bfd_set_section_alignment (dynobj, htab->iplt, 3))
- return FALSE;
-
- flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
- | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
- htab->reliplt = bfd_make_section_anyway_with_flags (dynobj,
- ".rela.iplt",
- flags);
- if (htab->reliplt == NULL
- || ! bfd_set_section_alignment (dynobj, htab->reliplt, 3))
- return FALSE;
-
- /* Create branch lookup table for plt_branch stubs. */
- flags = (SEC_ALLOC | SEC_LOAD
- | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
- htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt",
- flags);
- if (htab->brlt == NULL
- || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
- return FALSE;
-
- if (!info->shared)
- return TRUE;
-
- flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
- | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
- htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj,
- ".rela.branch_lt",
- flags);
- if (htab->relbrlt == NULL
- || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
- return FALSE;
-
- return TRUE;
-}
-
/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
not already done. */
/* If we were called to copy over info for a weak sym, that's all.
You might think dyn_relocs need not be copied over; After all,
both syms will be dynamic or both non-dynamic so we're just
- moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
+ moving reloc accounting around. However, ELIMINATE_COPY_RELOCS
code in ppc64_elf_adjust_dynamic_symbol needs to check for
dyn_relocs in read-only sections, and it does so on what is the
DIR sym here. */
ppc64_elf_add_symbol_hook (bfd *ibfd,
struct bfd_link_info *info,
Elf_Internal_Sym *isym,
- const char **name ATTRIBUTE_UNUSED,
+ const char **name,
flagword *flags ATTRIBUTE_UNUSED,
asection **sec,
bfd_vma *value ATTRIBUTE_UNUSED)
&& strcmp ((*sec)->name, ".opd") == 0)
isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
+ if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0)
+ {
+ if (abiversion (ibfd) == 0)
+ set_abiversion (ibfd, 2);
+ else if (abiversion (ibfd) == 1)
+ {
+ info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other"
+ " for ABI version 1\n"), name);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+ }
+
return TRUE;
}
+/* Merge non-visibility st_other attributes: local entry point. */
+
+static void
+ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h,
+ const Elf_Internal_Sym *isym,
+ bfd_boolean definition,
+ bfd_boolean dynamic)
+{
+ if (definition && !dynamic)
+ h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1))
+ | ELF_ST_VISIBILITY (h->other));
+}
+
/* This function makes an old ABI object reference to ".bar" cause the
inclusion of a new ABI object archive that defines "bar".
NAME is a symbol defined in an archive. Return a symbol in the hash
while ((eh = *p) != NULL)
{
*p = NULL;
- if (!add_symbol_adjust (eh, info))
+ if (&eh->elf == htab->elf.hgot)
+ ;
+ else if (htab->elf.hgot == NULL
+ && strcmp (eh->elf.root.root.string, ".TOC.") == 0)
+ htab->elf.hgot = &eh->elf;
+ else if (!add_symbol_adjust (eh, info))
return FALSE;
p = &eh->u.next_dot_sym;
}
not to be needed. */
static bfd_boolean
-ppc64_elf_as_needed_cleanup (bfd *ibfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info)
+ppc64_elf_notice_as_needed (bfd *ibfd,
+ struct bfd_link_info *info,
+ enum notice_asneeded_action act)
{
- struct ppc_link_hash_table *htab = ppc_hash_table (info);
+ if (act == notice_not_needed)
+ {
+ struct ppc_link_hash_table *htab = ppc_hash_table (info);
- if (htab == NULL)
- return FALSE;
+ if (htab == NULL)
+ return FALSE;
- htab->dot_syms = NULL;
- return TRUE;
+ htab->dot_syms = NULL;
+ }
+ return _bfd_elf_notice_as_needed (ibfd, info, act);
}
/* If --just-symbols against a final linked binary, then assume we need
information about the associated function section. */
bfd_size_type amt;
+ if (abiversion (abfd) == 0)
+ set_abiversion (abfd, 1);
+ else if (abiversion (abfd) == 2)
+ {
+ info->callbacks->einfo (_("%P: .opd not allowed in ABI version %d\n"),
+ abiversion (abfd));
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
amt = sec->size * sizeof (*opd_sym_map) / 8;
opd_sym_map = bfd_zalloc (abfd, amt);
if (opd_sym_map == NULL)
ppc64_elf_section_data (sec)->sec_type = sec_opd;
}
- if (htab->sfpr == NULL
- && !create_linkage_sections (htab->elf.dynobj, info))
- return FALSE;
-
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
{
{
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
h = elf_follow_link (h);
+
+ /* PR15323, ref flags aren't set for references in the same
+ object. */
+ h->root.non_ir_ref = 1;
+
+ if (h == htab->elf.hgot)
+ sec->has_toc_reloc = 1;
}
tls_type = 0;
case R_PPC64_DTPREL16_HA:
case R_PPC64_DTPREL16_DS:
case R_PPC64_DTPREL16_LO_DS:
+ case R_PPC64_DTPREL16_HIGH:
+ case R_PPC64_DTPREL16_HIGHA:
case R_PPC64_DTPREL16_HIGHER:
case R_PPC64_DTPREL16_HIGHERA:
case R_PPC64_DTPREL16_HIGHEST:
case R_PPC64_TPREL16_HA:
case R_PPC64_TPREL16_DS:
case R_PPC64_TPREL16_LO_DS:
+ case R_PPC64_TPREL16_HIGH:
+ case R_PPC64_TPREL16_HIGHA:
case R_PPC64_TPREL16_HIGHER:
case R_PPC64_TPREL16_HIGHERA:
case R_PPC64_TPREL16_HIGHEST:
case R_PPC64_ADDR16_DS:
case R_PPC64_ADDR16_HA:
case R_PPC64_ADDR16_HI:
+ case R_PPC64_ADDR16_HIGH:
+ case R_PPC64_ADDR16_HIGHA:
case R_PPC64_ADDR16_HIGHER:
case R_PPC64_ADDR16_HIGHERA:
case R_PPC64_ADDR16_HIGHEST:
if ((info->shared
&& (must_be_dyn_reloc (info, r_type)
|| (h != NULL
- && (! info->symbolic
+ && (!SYMBOLIC_BIND (info, h)
|| h->root.type == bfd_link_hash_defweak
|| !h->def_regular))))
|| (ELIMINATE_COPY_RELOCS
|| (!info->shared
&& ifunc != NULL))
{
- struct elf_dyn_relocs *p;
- struct elf_dyn_relocs **head;
-
/* We must copy these reloc types into the output file.
Create a reloc section in dynobj and make room for
this reloc. */
relocations we need for this symbol. */
if (h != NULL)
{
+ struct elf_dyn_relocs *p;
+ struct elf_dyn_relocs **head;
+
head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
+ p = *head;
+ if (p == NULL || p->sec != sec)
+ {
+ p = bfd_alloc (htab->elf.dynobj, sizeof *p);
+ if (p == NULL)
+ return FALSE;
+ p->next = *head;
+ *head = p;
+ p->sec = sec;
+ p->count = 0;
+ p->pc_count = 0;
+ }
+ p->count += 1;
+ if (!must_be_dyn_reloc (info, r_type))
+ p->pc_count += 1;
}
else
{
/* Track dynamic relocs needed for local syms too.
We really need local syms available to do this
easily. Oh well. */
+ struct ppc_dyn_relocs *p;
+ struct ppc_dyn_relocs **head;
+ bfd_boolean is_ifunc;
asection *s;
void *vpp;
Elf_Internal_Sym *isym;
- isym = bfd_sym_from_r_symndx (&htab->sym_cache,
- abfd, r_symndx);
- if (isym == NULL)
- return FALSE;
+ isym = bfd_sym_from_r_symndx (&htab->sym_cache,
+ abfd, r_symndx);
+ if (isym == NULL)
+ return FALSE;
+
+ s = bfd_section_from_elf_index (abfd, isym->st_shndx);
+ if (s == NULL)
+ s = sec;
+
+ vpp = &elf_section_data (s)->local_dynrel;
+ head = (struct ppc_dyn_relocs **) vpp;
+ is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
+ p = *head;
+ if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
+ p = p->next;
+ if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
+ {
+ p = bfd_alloc (htab->elf.dynobj, sizeof *p);
+ if (p == NULL)
+ return FALSE;
+ p->next = *head;
+ *head = p;
+ p->sec = sec;
+ p->ifunc = is_ifunc;
+ p->count = 0;
+ }
+ p->count += 1;
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ return TRUE;
+}
+
+/* Merge backend specific data from an object file to the output
+ object file when linking. */
+
+static bfd_boolean
+ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
+{
+ unsigned long iflags, oflags;
+
+ if ((ibfd->flags & BFD_LINKER_CREATED) != 0)
+ return TRUE;
+
+ if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd))
+ return TRUE;
+
+ if (!_bfd_generic_verify_endian_match (ibfd, obfd))
+ return FALSE;
+
+ iflags = elf_elfheader (ibfd)->e_flags;
+ oflags = elf_elfheader (obfd)->e_flags;
+
+ if (!elf_flags_init (obfd) || oflags == 0)
+ {
+ elf_flags_init (obfd) = TRUE;
+ elf_elfheader (obfd)->e_flags = iflags;
+ }
+ else if (iflags == oflags || iflags == 0)
+ ;
+ else if (iflags & ~EF_PPC64_ABI)
+ {
+ (*_bfd_error_handler)
+ (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+ else
+ {
+ (*_bfd_error_handler)
+ (_("%B: ABI version %ld is not compatible with ABI version %ld output"),
+ ibfd, iflags, oflags);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+
+ /* Merge Tag_compatibility attributes and any common GNU ones. */
+ _bfd_elf_merge_object_attributes (ibfd, obfd);
- s = bfd_section_from_elf_index (abfd, isym->st_shndx);
- if (s == NULL)
- s = sec;
+ return TRUE;
+}
- vpp = &elf_section_data (s)->local_dynrel;
- head = (struct elf_dyn_relocs **) vpp;
- }
+static bfd_boolean
+ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr)
+{
+ /* Print normal ELF private data. */
+ _bfd_elf_print_private_bfd_data (abfd, ptr);
- p = *head;
- if (p == NULL || p->sec != sec)
- {
- p = bfd_alloc (htab->elf.dynobj, sizeof *p);
- if (p == NULL)
- return FALSE;
- p->next = *head;
- *head = p;
- p->sec = sec;
- p->count = 0;
- p->pc_count = 0;
- }
+ if (elf_elfheader (abfd)->e_flags != 0)
+ {
+ FILE *file = ptr;
- p->count += 1;
- if (!must_be_dyn_reloc (info, r_type))
- p->pc_count += 1;
- }
- break;
+ /* xgettext:c-format */
+ fprintf (file, _("private flags = 0x%lx:"),
+ elf_elfheader (abfd)->e_flags);
- default:
- break;
- }
+ if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0)
+ fprintf (file, _(" [abiv%ld]"),
+ elf_elfheader (abfd)->e_flags & EF_PPC64_ABI);
+ fputc ('\n', file);
}
return TRUE;
at a final linked executable with addr2line or somesuch. */
if (opd_sec->reloc_count == 0)
{
- char buf[8];
+ bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents;
- if (!bfd_get_section_contents (opd_bfd, opd_sec, buf, offset, 8))
- return (bfd_vma) -1;
+ if (contents == NULL)
+ {
+ if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents))
+ return (bfd_vma) -1;
+ ppc64_elf_tdata (opd_bfd)->opd.contents = contents;
+ }
- val = bfd_get_64 (opd_bfd, buf);
+ val = bfd_get_64 (opd_bfd, contents + offset);
if (code_sec != NULL)
{
asection *sec, *likely = NULL;
BFD_ASSERT (is_ppc64_elf (opd_bfd));
- relocs = ppc64_elf_tdata (opd_bfd)->opd_relocs;
+ relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs;
if (relocs == NULL)
relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE);
sym_hashes = elf_sym_hashes (opd_bfd);
rh = sym_hashes[symndx - symtab_hdr->sh_info];
- rh = elf_follow_link (rh);
- BFD_ASSERT (rh->root.type == bfd_link_hash_defined
- || rh->root.type == bfd_link_hash_defweak);
- val = rh->root.u.def.value;
- sec = rh->root.u.def.section;
+ if (rh != NULL)
+ {
+ rh = elf_follow_link (rh);
+ BFD_ASSERT (rh->root.type == bfd_link_hash_defined
+ || rh->root.type == bfd_link_hash_defweak);
+ val = rh->root.u.def.value;
+ sec = rh->root.u.def.section;
+ }
+ else
+ {
+ /* Handle the odd case where we can be called
+ during bfd_elf_link_add_symbols before the
+ symbol hashes have been fully populated. */
+ Elf_Internal_Sym *sym;
+
+ sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, 1,
+ symndx, NULL, NULL, NULL);
+ if (sym == NULL)
+ break;
+
+ val = sym->st_value;
+ sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx);
+ free (sym);
+ }
}
val += look->r_addend;
if (code_off != NULL)
savegpr0_tail (bfd *abfd, bfd_byte *p, int r)
{
p = savegpr0 (abfd, p, r);
- bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
+ bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p);
p = p + 4;
bfd_put_32 (abfd, BLR, p);
return p + 4;
static bfd_byte *
restgpr0_tail (bfd *abfd, bfd_byte *p, int r)
{
- bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
+ bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p);
p = p + 4;
p = restgpr0 (abfd, p, r);
bfd_put_32 (abfd, MTLR_R0, p);
savefpr0_tail (bfd *abfd, bfd_byte *p, int r)
{
p = savefpr (abfd, p, r);
- bfd_put_32 (abfd, STD_R0_0R1 + 16, p);
+ bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p);
p = p + 4;
bfd_put_32 (abfd, BLR, p);
return p + 4;
static bfd_byte *
restfpr0_tail (bfd *abfd, bfd_byte *p, int r)
{
- bfd_put_32 (abfd, LD_R0_0R1 + 16, p);
+ bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p);
p = p + 4;
p = restfpr (abfd, p, r);
bfd_put_32 (abfd, MTLR_R0, p);
if (htab == NULL)
return FALSE;
+ if (!info->relocatable
+ && htab->elf.hgot != NULL)
+ _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE);
+
if (htab->sfpr == NULL)
/* We don't have any relocs. */
return TRUE;
sections. Allow them to proceed, but warn that this might
break at runtime. */
info->callbacks->einfo
- (_("%P: copy reloc against `%s' requires lazy plt linking; "
+ (_("%P: copy reloc against `%T' requires lazy plt linking; "
"avoid setting LD_BIND_NOW=1 or upgrade gcc\n"),
h->root.root.string);
}
}
/* Handles decrementing dynamic reloc counts for the reloc specified by
- R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM_SEC
+ R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM
have already been determined. */
static bfd_boolean
struct bfd_link_info *info,
Elf_Internal_Sym **local_syms,
struct elf_link_hash_entry *h,
- asection *sym_sec)
+ Elf_Internal_Sym *sym)
{
enum elf_ppc64_reloc_type r_type;
- struct elf_dyn_relocs *p;
- struct elf_dyn_relocs **pp;
+ asection *sym_sec = NULL;
/* Can this reloc be dynamic? This switch, and later tests here
should be kept in sync with the code in check_relocs. */
case R_PPC64_TPREL16_HA:
case R_PPC64_TPREL16_DS:
case R_PPC64_TPREL16_LO_DS:
+ case R_PPC64_TPREL16_HIGH:
+ case R_PPC64_TPREL16_HIGHA:
case R_PPC64_TPREL16_HIGHER:
case R_PPC64_TPREL16_HIGHERA:
case R_PPC64_TPREL16_HIGHEST:
case R_PPC64_ADDR16_DS:
case R_PPC64_ADDR16_HA:
case R_PPC64_ADDR16_HI:
+ case R_PPC64_ADDR16_HIGH:
+ case R_PPC64_ADDR16_HIGHA:
case R_PPC64_ADDR16_HIGHER:
case R_PPC64_ADDR16_HIGHERA:
case R_PPC64_ADDR16_HIGHEST:
if (local_syms != NULL)
{
unsigned long r_symndx;
- Elf_Internal_Sym *sym;
bfd *ibfd = sec->owner;
r_symndx = ELF64_R_SYM (r_info);
if ((info->shared
&& (must_be_dyn_reloc (info, r_type)
|| (h != NULL
- && (!info->symbolic
+ && (!SYMBOLIC_BIND (info, h)
|| h->root.type == bfd_link_hash_defweak
|| !h->def_regular))))
|| (ELIMINATE_COPY_RELOCS
return TRUE;
if (h != NULL)
- pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
- else
{
- if (sym_sec != NULL)
- {
- void *vpp = &elf_section_data (sym_sec)->local_dynrel;
- pp = (struct elf_dyn_relocs **) vpp;
- }
- else
- {
- void *vpp = &elf_section_data (sec)->local_dynrel;
- pp = (struct elf_dyn_relocs **) vpp;
- }
+ struct elf_dyn_relocs *p;
+ struct elf_dyn_relocs **pp;
+ pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
/* elf_gc_sweep may have already removed all dyn relocs associated
- with local syms for a given section. Don't report a dynreloc
- miscount. */
- if (*pp == NULL)
+ with local syms for a given section. Also, symbol flags are
+ changed by elf_gc_sweep_symbol, confusing the test above. Don't
+ report a dynreloc miscount. */
+ if (*pp == NULL && info->gc_sections)
return TRUE;
- }
- while ((p = *pp) != NULL)
+ while ((p = *pp) != NULL)
+ {
+ if (p->sec == sec)
+ {
+ if (!must_be_dyn_reloc (info, r_type))
+ p->pc_count -= 1;
+ p->count -= 1;
+ if (p->count == 0)
+ *pp = p->next;
+ return TRUE;
+ }
+ pp = &p->next;
+ }
+ }
+ else
{
- if (p->sec == sec)
+ struct ppc_dyn_relocs *p;
+ struct ppc_dyn_relocs **pp;
+ void *vpp;
+ bfd_boolean is_ifunc;
+
+ if (local_syms == NULL)
+ sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
+ if (sym_sec == NULL)
+ sym_sec = sec;
+
+ vpp = &elf_section_data (sym_sec)->local_dynrel;
+ pp = (struct ppc_dyn_relocs **) vpp;
+
+ if (*pp == NULL && info->gc_sections)
+ return TRUE;
+
+ is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC;
+ while ((p = *pp) != NULL)
{
- if (!must_be_dyn_reloc (info, r_type))
- p->pc_count -= 1;
- p->count -= 1;
- if (p->count == 0)
- *pp = p->next;
- return TRUE;
+ if (p->sec == sec && p->ifunc == is_ifunc)
+ {
+ p->count -= 1;
+ if (p->count == 0)
+ *pp = p->next;
+ return TRUE;
+ }
+ pp = &p->next;
}
- pp = &p->next;
}
info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"),
if (!NO_OPD_RELOCS
&& !info->relocatable
&& !dec_dynrel_count (rel->r_info, sec, info,
- NULL, h, sym_sec))
+ NULL, h, sym))
goto error_ret;
}
else
if (htab == NULL)
return NULL;
+ if (abiversion (info->output_bfd) == 1)
+ htab->opd_abi = 1;
+
if (*no_multi_toc)
htab->do_multi_toc = 0;
else if (!htab->do_multi_toc)
/* If we got rid of a DTPMOD/DTPREL reloc pair then
we'll lose one or two dyn relocs. */
if (!dec_dynrel_count (rel->r_info, sec, info,
- NULL, h, sym_sec))
+ NULL, h, sym))
return FALSE;
if (tls_set == (TLS_EXPLICIT | TLS_GD))
{
if (!dec_dynrel_count ((rel + 1)->r_info, sec, info,
- NULL, h, sym_sec))
+ NULL, h, sym))
return FALSE;
}
}
. addi ry,rx,addr@toc@l
when addr is within 2G of the toc pointer. This then means
that the word storing "addr" in the toc is no longer needed. */
-
+
if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc
&& toc->output_section->rawsize < (bfd_vma) 1 << 31
&& toc->reloc_count != 0)
if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
ppc_howto_init ();
info->callbacks->einfo
- (_("%P: %H: %s relocation references "
+ (_("%P: %H: %s references "
"optimized away TOC entry\n"),
ibfd, sec, rel->r_offset,
ppc64_elf_howto_table[r_type]->name);
got->size += entsize;
dyn = htab->elf.dynamic_sections_created;
- if ((info->shared
- || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
- && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
- || h->root.type != bfd_link_hash_undefweak))
+ if (h->type == STT_GNU_IFUNC)
{
- asection *relgot = ppc64_elf_tdata (gent->owner)->relgot;
- relgot->size += rentsize;
+ htab->reliplt->size += rentsize;
+ htab->got_reli_size += rentsize;
}
- else if (h->type == STT_GNU_IFUNC)
+ else if ((info->shared
+ || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
+ && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak))
{
- asection *relgot = htab->reliplt;
+ asection *relgot = ppc64_elf_tdata (gent->owner)->relgot;
relgot->size += rentsize;
- htab->got_reli_size += rentsize;
}
}
{
s = htab->iplt;
pent->plt.offset = s->size;
- s->size += PLT_ENTRY_SIZE;
+ s->size += PLT_ENTRY_SIZE (htab);
s = htab->reliplt;
}
else
first entry. */
s = htab->plt;
if (s->size == 0)
- s->size += PLT_INITIAL_ENTRY_SIZE;
+ s->size += PLT_INITIAL_ENTRY_SIZE (htab);
pent->plt.offset = s->size;
/* Make room for this entry. */
- s->size += PLT_ENTRY_SIZE;
+ s->size += PLT_ENTRY_SIZE (htab);
/* Make room for the .glink code. */
s = htab->glink;
if (s->size == 0)
s->size += GLINK_CALL_STUB_SIZE;
- /* We need bigger stubs past index 32767. */
- if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
+ if (htab->opd_abi)
+ {
+ /* We need bigger stubs past index 32767. */
+ if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
+ s->size += 4;
+ s->size += 2*4;
+ }
+ else
s->size += 4;
- s->size += 2*4;
/* We also need to make an entry in the .rela.plt section. */
s = htab->relplt;
for (p = eh->dyn_relocs; p != NULL; p = p->next)
{
asection *sreloc = elf_section_data (p->sec)->sreloc;
- if (!htab->elf.dynamic_sections_created)
+ if (eh->elf.type == STT_GNU_IFUNC)
sreloc = htab->reliplt;
sreloc->size += p->count * sizeof (Elf64_External_Rela);
}
/* Set the sizes of the dynamic sections. */
static bfd_boolean
-ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
+ppc64_elf_size_dynamic_sections (bfd *output_bfd,
struct bfd_link_info *info)
{
struct ppc_link_hash_table *htab;
unsigned char *lgot_masks;
bfd_size_type locsymcount;
Elf_Internal_Shdr *symtab_hdr;
- asection *srel;
if (!is_ppc64_elf (ibfd))
continue;
for (s = ibfd->sections; s != NULL; s = s->next)
{
- struct elf_dyn_relocs *p;
+ struct ppc_dyn_relocs *p;
for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
{
}
else if (p->count != 0)
{
- srel = elf_section_data (p->sec)->sreloc;
- if (!htab->elf.dynamic_sections_created)
+ asection *srel = elf_section_data (p->sec)->sreloc;
+ if (p->ifunc)
srel = htab->reliplt;
srel->size += p->count * sizeof (Elf64_External_Rela);
if ((p->sec->output_section->flags & SEC_READONLY) != 0)
end_local_plt = local_plt + locsymcount;
lgot_masks = (unsigned char *) end_local_plt;
s = ppc64_elf_tdata (ibfd)->got;
- srel = ppc64_elf_tdata (ibfd)->relgot;
for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
{
struct got_entry **pent, *ent;
}
else
{
- unsigned int num = 1;
+ unsigned int ent_size = 8;
+ unsigned int rel_size = sizeof (Elf64_External_Rela);
+
ent->got.offset = s->size;
if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
- num = 2;
- s->size += num * 8;
- if (info->shared)
- srel->size += num * sizeof (Elf64_External_Rela);
- else if ((*lgot_masks & PLT_IFUNC) != 0)
{
- htab->reliplt->size
- += num * sizeof (Elf64_External_Rela);
- htab->got_reli_size
- += num * sizeof (Elf64_External_Rela);
+ ent_size *= 2;
+ rel_size *= 2;
+ }
+ s->size += ent_size;
+ if ((*lgot_masks & PLT_IFUNC) != 0)
+ {
+ htab->reliplt->size += rel_size;
+ htab->got_reli_size += rel_size;
+ }
+ else if (info->shared)
+ {
+ asection *srel = ppc64_elf_tdata (ibfd)->relgot;
+ srel->size += rel_size;
}
pent = &ent->next;
}
{
s = htab->iplt;
ent->plt.offset = s->size;
- s->size += PLT_ENTRY_SIZE;
+ s->size += PLT_ENTRY_SIZE (htab);
htab->reliplt->size += sizeof (Elf64_External_Rela);
}
return FALSE;
}
- if (NO_OPD_RELOCS)
+ if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1)
{
if (!add_dynamic_entry (DT_PPC64_OPD, 0)
|| !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
const Elf_Internal_Rela *rel,
struct ppc_link_hash_entry **hash,
struct plt_entry **plt_ent,
- bfd_vma destination)
+ bfd_vma destination,
+ unsigned long local_off)
{
struct ppc_link_hash_entry *h = *hash;
bfd_vma location;
if (r_type != R_PPC64_REL24)
max_branch_offset = 1 << 15;
- if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
+ if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off)
/* We need a stub. Figure out whether a long_branch or plt_branch
is needed later. */
return ppc_stub_long_branch;
the appropriate glink entry if so.
. fake dep barrier compare
- . ld 11,xxx(2) ld 11,xxx(2)
- . mtctr 11 mtctr 11
- . xor 11,11,11 ld 2,xxx+8(2)
+ . ld 12,xxx(2) ld 12,xxx(2)
+ . mtctr 12 mtctr 12
+ . xor 11,12,12 ld 2,xxx+8(2)
. add 2,2,11 cmpldi 2,0
. ld 2,xxx+8(2) bnectr+
. bctr b <glink_entry>
struct ppc_stub_hash_entry *stub_entry,
bfd_vma off)
{
- unsigned size = PLT_CALL_STUB_SIZE;
-
- if (!(ALWAYS_EMIT_R2SAVE
- || stub_entry->stub_type == ppc_stub_plt_call_r2save))
- size -= 4;
- if (!htab->plt_static_chain)
- size -= 4;
- if (htab->plt_thread_safe)
- size += 8;
- if (PPC_HA (off) == 0)
- size -= 4;
- if (PPC_HA (off + 8 + 8 * htab->plt_static_chain) != PPC_HA (off))
+ unsigned size = 12;
+
+ if (ALWAYS_EMIT_R2SAVE
+ || stub_entry->stub_type == ppc_stub_plt_call_r2save)
size += 4;
+ if (PPC_HA (off) != 0)
+ size += 4;
+ if (htab->opd_abi)
+ {
+ size += 4;
+ if (htab->plt_static_chain)
+ size += 4;
+ if (htab->plt_thread_safe)
+ size += 8;
+ if (PPC_HA (off + 8 + 8 * htab->plt_static_chain) != PPC_HA (off))
+ size += 4;
+ }
if (stub_entry->h != NULL
&& (stub_entry->h == htab->tls_get_addr_fd
|| stub_entry->h == htab->tls_get_addr)
bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r)
{
bfd *obfd = htab->stub_bfd;
+ bfd_boolean plt_load_toc = htab->opd_abi;
bfd_boolean plt_static_chain = htab->plt_static_chain;
bfd_boolean plt_thread_safe = htab->plt_thread_safe;
bfd_boolean use_fake_dep = plt_thread_safe;
bfd_vma cmp_branch_off = 0;
if (!ALWAYS_USE_FAKE_DEP
+ && plt_load_toc
&& plt_thread_safe
&& !(stub_entry->h != NULL
&& (stub_entry->h == htab->tls_get_addr_fd
&& !htab->no_tls_get_addr_opt))
{
bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1;
- bfd_vma pltindex = (pltoff - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE;
+ bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab))
+ / PLT_ENTRY_SIZE (htab));
bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8;
bfd_vma to, from;
- if (pltindex > 32767)
- glinkoff += (pltindex - 32767) * 4;
+ if (pltindex > 32768)
+ glinkoff += (pltindex - 32768) * 4;
to = (glinkoff
+ htab->glink->output_offset
+ htab->glink->output_section->vma);
r[1].r_offset = r[0].r_offset + 4;
r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
r[1].r_addend = r[0].r_addend;
- if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
- {
- r[2].r_offset = r[1].r_offset + 4;
- r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO);
- r[2].r_addend = r[0].r_addend;
- }
- else
+ if (plt_load_toc)
{
- r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep;
- r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
- r[2].r_addend = r[0].r_addend + 8;
- if (plt_static_chain)
+ if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
+ {
+ r[2].r_offset = r[1].r_offset + 4;
+ r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO);
+ r[2].r_addend = r[0].r_addend;
+ }
+ else
{
- r[3].r_offset = r[2].r_offset + 4;
- r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
- r[3].r_addend = r[0].r_addend + 16;
+ r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep;
+ r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
+ r[2].r_addend = r[0].r_addend + 8;
+ if (plt_static_chain)
+ {
+ r[3].r_offset = r[2].r_offset + 4;
+ r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS);
+ r[3].r_addend = r[0].r_addend + 16;
+ }
}
}
}
if (ALWAYS_EMIT_R2SAVE
|| stub_entry->stub_type == ppc_stub_plt_call_r2save)
- bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
- bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
- bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
- if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
+ bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4;
+ bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4;
+ bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4;
+ if (plt_load_toc
+ && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
{
- bfd_put_32 (obfd, ADDI_R12_R12 | PPC_LO (offset), p), p += 4;
+ bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4;
offset = 0;
}
- bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
- if (use_fake_dep)
+ bfd_put_32 (obfd, MTCTR_R12, p), p += 4;
+ if (plt_load_toc)
{
- bfd_put_32 (obfd, XOR_R11_R11_R11, p), p += 4;
- bfd_put_32 (obfd, ADD_R12_R12_R11, p), p += 4;
+ if (use_fake_dep)
+ {
+ bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4;
+ bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4;
+ }
+ bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4;
+ if (plt_static_chain)
+ bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4;
}
- bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset + 8), p), p += 4;
- if (plt_static_chain)
- bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset + 16), p), p += 4;
}
else
{
|| stub_entry->stub_type == ppc_stub_plt_call_r2save)
r[0].r_offset += 4;
r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
- if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
- {
- r[1].r_offset = r[0].r_offset + 4;
- r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16);
- r[1].r_addend = r[0].r_addend;
- }
- else
+ if (plt_load_toc)
{
- r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep;
- r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
- r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain;
- if (plt_static_chain)
+ if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
{
- r[2].r_offset = r[1].r_offset + 4;
- r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
- r[2].r_addend = r[0].r_addend + 8;
+ r[1].r_offset = r[0].r_offset + 4;
+ r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16);
+ r[1].r_addend = r[0].r_addend;
+ }
+ else
+ {
+ r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep;
+ r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
+ r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain;
+ if (plt_static_chain)
+ {
+ r[2].r_offset = r[1].r_offset + 4;
+ r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
+ r[2].r_addend = r[0].r_addend + 8;
+ }
}
}
}
if (ALWAYS_EMIT_R2SAVE
|| stub_entry->stub_type == ppc_stub_plt_call_r2save)
- bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
- bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset), p), p += 4;
- if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
+ bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4;
+ bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4;
+ if (plt_load_toc
+ && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset))
{
bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4;
offset = 0;
}
- bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
- if (use_fake_dep)
+ bfd_put_32 (obfd, MTCTR_R12, p), p += 4;
+ if (plt_load_toc)
{
- bfd_put_32 (obfd, XOR_R11_R11_R11, p), p += 4;
- bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4;
+ if (use_fake_dep)
+ {
+ bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4;
+ bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4;
+ }
+ if (plt_static_chain)
+ bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4;
+ bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4;
}
- if (plt_static_chain)
- bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4;
- bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4;
}
- if (plt_thread_safe && !use_fake_dep)
+ if (plt_load_toc && plt_thread_safe && !use_fake_dep)
{
bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4;
bfd_put_32 (obfd, BNECTR_P4, p), p += 4;
- bfd_put_32 (obfd, B_DOT + cmp_branch_off, p), p += 4;
+ bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4;
}
else
bfd_put_32 (obfd, BCTR, p), p += 4;
#define ADD_R3_R12_R13 0x7c6c6a14
#define BEQLR 0x4d820020
#define MR_R3_R0 0x7c030378
-#define MFLR_R11 0x7d6802a6
#define STD_R11_0R1 0xf9610000
#define BCTRL 0x4e800421
#define LD_R11_0R1 0xe9610000
-#define LD_R2_0R1 0xe8410000
#define MTLR_R11 0x7d6803a6
static inline bfd_byte *
bfd_put_32 (obfd, BEQLR, p), p += 4;
bfd_put_32 (obfd, MR_R3_R0, p), p += 4;
bfd_put_32 (obfd, MFLR_R11, p), p += 4;
- bfd_put_32 (obfd, STD_R11_0R1 + 32, p), p += 4;
+ bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4;
if (r != NULL)
r[0].r_offset += 9 * 4;
p = build_plt_stub (htab, stub_entry, p, offset, r);
bfd_put_32 (obfd, BCTRL, p - 4);
- bfd_put_32 (obfd, LD_R11_0R1 + 32, p), p += 4;
- bfd_put_32 (obfd, LD_R2_0R1 + 40, p), p += 4;
+ bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4;
+ bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4;
bfd_put_32 (obfd, MTLR_R11, p), p += 4;
bfd_put_32 (obfd, BLR, p), p += 4;
/* Support linking -R objects. Get the toc pointer from the
opd entry. */
char buf[8];
+ if (!htab->opd_abi)
+ return r2off;
asection *opd = stub_entry->h->elf.root.u.def.section;
bfd_vma opd_off = stub_entry->h->elf.root.u.def.value;
if (strcmp (opd->name, ".opd") != 0
|| opd->reloc_count != 0)
{
- info->callbacks->einfo (_("%P: cannot find opd entry toc for %s\n"),
+ info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"),
stub_entry->h->elf.root.root.string);
bfd_set_error (bfd_error_bad_value);
return 0;
case ppc_stub_long_branch:
case ppc_stub_long_branch_r2off:
/* Branches are relative. This is where we are going to. */
- off = dest = (stub_entry->target_value
- + stub_entry->target_section->output_offset
- + stub_entry->target_section->output_section->vma);
+ dest = (stub_entry->target_value
+ + stub_entry->target_section->output_offset
+ + stub_entry->target_section->output_section->vma);
+ dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
+ off = dest;
/* And this is where we are coming from. */
off -= (stub_entry->stub_offset
htab->stub_error = TRUE;
return FALSE;
}
- bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
+ bfd_put_32 (htab->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc);
loc += 4;
size = 12;
if (PPC_HA (r2off) != 0)
if (off + (1 << 25) >= (bfd_vma) (1 << 26))
{
- info->callbacks->einfo (_("%P: long branch stub `%s' offset overflow\n"),
- stub_entry->root.string);
+ info->callbacks->einfo
+ (_("%P: long branch stub `%s' offset overflow\n"),
+ stub_entry->root.string);
htab->stub_error = TRUE;
return FALSE;
}
dest = (stub_entry->target_value
+ stub_entry->target_section->output_offset
+ stub_entry->target_section->output_section->vma);
+ if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
+ dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
bfd_put_64 (htab->brlt->owner, dest,
htab->brlt->contents + br_entry->offset);
if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
{
info->callbacks->einfo
- (_("%P: linkage table error against `%s'\n"),
+ (_("%P: linkage table error against `%T'\n"),
stub_entry->root.string);
bfd_set_error (bfd_error_bad_value);
htab->stub_error = TRUE;
r[0].r_offset = loc - stub_entry->stub_sec->contents;
if (bfd_big_endian (info->output_bfd))
r[0].r_offset += 2;
- if (stub_entry->stub_type == ppc_stub_plt_branch_r2off)
+ if (stub_entry->stub_type == ppc_stub_plt_branch_r2off
+ && htab->opd_abi)
r[0].r_offset += 4;
r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
r[0].r_addend = dest;
}
}
- if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
+ if (stub_entry->stub_type != ppc_stub_plt_branch_r2off
+ || !htab->opd_abi)
{
if (PPC_HA (off) != 0)
{
size = 16;
- bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (off), loc);
+ bfd_put_32 (htab->stub_bfd, ADDIS_R11_R2 | PPC_HA (off), loc);
loc += 4;
- bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (off), loc);
+ bfd_put_32 (htab->stub_bfd, LD_R12_0R11 | PPC_LO (off), loc);
}
else
{
size = 12;
- bfd_put_32 (htab->stub_bfd, LD_R11_0R2 | PPC_LO (off), loc);
+ bfd_put_32 (htab->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc);
}
}
else
return FALSE;
}
- bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
+ bfd_put_32 (htab->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc);
loc += 4;
size = 20;
if (PPC_HA (off) != 0)
{
size += 4;
- bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (off), loc);
+ bfd_put_32 (htab->stub_bfd, ADDIS_R11_R2 | PPC_HA (off), loc);
loc += 4;
- bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (off), loc);
+ bfd_put_32 (htab->stub_bfd, LD_R12_0R11 | PPC_LO (off), loc);
loc += 4;
}
else
{
- bfd_put_32 (htab->stub_bfd, LD_R11_0R2 | PPC_LO (off), loc);
+ bfd_put_32 (htab->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc);
loc += 4;
}
bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
}
loc += 4;
- bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
+ bfd_put_32 (htab->stub_bfd, MTCTR_R12, loc);
loc += 4;
bfd_put_32 (htab->stub_bfd, BCTR, loc);
break;
bfd_byte *rl;
rela.r_offset = dest;
- rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
+ if (htab->opd_abi)
+ rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
+ else
+ rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
rela.r_addend = (stub_entry->target_value
+ stub_entry->target_section->output_offset
+ stub_entry->target_section->output_section->vma);
if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
{
info->callbacks->einfo
- (_("%P: linkage table error against `%s'\n"),
+ (_("%P: linkage table error against `%T'\n"),
stub_entry->h != NULL
? stub_entry->h->elf.root.root.string
: "<local sym>");
if (info->emitrelocations)
{
stub_entry->stub_sec->reloc_count
- += (2
- + (PPC_HA (off) != 0)
- + (htab->plt_static_chain
- && PPC_HA (off + 16) == PPC_HA (off)));
+ += ((PPC_HA (off) != 0)
+ + (htab->opd_abi
+ ? 2 + (htab->plt_static_chain
+ && PPC_HA (off + 16) == PPC_HA (off))
+ : 1));
stub_entry->stub_sec->flags |= SEC_RELOC;
}
}
/* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
variants. */
bfd_vma r2off = 0;
+ bfd_vma local_off = 0;
off = (stub_entry->target_value
+ stub_entry->target_section->output_offset
if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
{
r2off = get_r2off (info, stub_entry);
- if (r2off == 0)
+ if (r2off == 0 && htab->opd_abi)
{
htab->stub_error = TRUE;
return FALSE;
off -= size - 4;
}
- /* If the branch offset if too big, use a ppc_stub_plt_branch. */
- if (off + (1 << 25) >= (bfd_vma) (1 << 26))
+ local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other);
+
+ /* If the branch offset if too big, use a ppc_stub_plt_branch.
+ Do the same for -R objects without function descriptors. */
+ if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off
+ || (stub_entry->stub_type == ppc_stub_long_branch_r2off
+ && r2off == 0))
{
struct ppc_branch_hash_entry *br_entry;
stub_entry->stub_sec->flags |= SEC_RELOC;
}
- if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
+ if (stub_entry->stub_type != ppc_stub_plt_branch_r2off
+ || !htab->opd_abi)
{
size = 12;
if (PPC_HA (off) != 0)
htab->add_stub_section = add_stub_section;
htab->layout_sections_again = layout_sections_again;
- if (htab->brlt == NULL)
- return 0;
-
/* Find the top input section id. */
for (input_bfd = info->input_bfds, top_id = 3;
input_bfd != NULL;
{
struct ppc_link_hash_table *htab = ppc_hash_table (info);
- elf_gp (info->output_bfd) = ppc64_elf_toc (info->output_bfd);
- htab->toc_curr = elf_gp (info->output_bfd);
+ htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd);
htab->toc_bfd = NULL;
htab->toc_first_sec = NULL;
}
unsigned char *lgot_masks;
bfd_size_type locsymcount;
Elf_Internal_Shdr *symtab_hdr;
- asection *s, *srel;
+ asection *s;
if (!is_ppc64_elf (ibfd))
continue;
end_local_plt = local_plt + locsymcount;
lgot_masks = (unsigned char *) end_local_plt;
s = ppc64_elf_tdata (ibfd)->got;
- srel = ppc64_elf_tdata (ibfd)->relgot;
for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
{
struct got_entry *ent;
for (ent = *lgot_ents; ent != NULL; ent = ent->next)
{
- unsigned int num = 1;
+ unsigned int ent_size = 8;
+ unsigned int rel_size = sizeof (Elf64_External_Rela);
+
ent->got.offset = s->size;
if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
- num = 2;
- s->size += num * 8;
- if (info->shared)
- srel->size += num * sizeof (Elf64_External_Rela);
- else if ((*lgot_masks & PLT_IFUNC) != 0)
{
- htab->reliplt->size
- += num * sizeof (Elf64_External_Rela);
- htab->got_reli_size
- += num * sizeof (Elf64_External_Rela);
+ ent_size *= 2;
+ rel_size *= 2;
+ }
+ s->size += ent_size;
+ if ((*lgot_masks & PLT_IFUNC) != 0)
+ {
+ htab->reliplt->size += rel_size;
+ htab->got_reli_size += rel_size;
+ }
+ else if (info->shared)
+ {
+ asection *srel = ppc64_elf_tdata (ibfd)->relgot;
+ srel->size += rel_size;
}
}
}
need a plt_branch stub. A plt_branch stub uses r2. */
else if (dest - (isec->output_offset
+ isec->output_section->vma
- + rel->r_offset) + (1 << 25) >= (2 << 25))
+ + rel->r_offset) + (1 << 25)
+ >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h
+ ? h->other
+ : sym->st_other))
{
ret = 1;
break;
{
if (isec->size == 0
&& isec->output_section->size == 0
+ && !(isec->output_section->flags & SEC_KEEP)
&& !bfd_section_removed_from_list (info->output_bfd,
isec->output_section)
&& elf_section_data (isec->output_section)->dynindx == 0)
htab->plt_static_chain = plt_static_chain;
htab->plt_stub_align = plt_stub_align;
- if (plt_thread_safe == -1)
+ if (plt_thread_safe == -1 && !info->executable)
+ plt_thread_safe = 1;
+ if (!htab->opd_abi)
+ plt_thread_safe = 0;
+ else if (plt_thread_safe == -1)
{
- const char *const thread_starter[] =
+ static const char *const thread_starter[] =
{
"pthread_create",
/* libstdc++ */
"GOMP_parallel_loop_dynamic_start",
"GOMP_parallel_loop_guided_start",
"GOMP_parallel_loop_runtime_start",
- "GOMP_parallel_sections_start",
+ "GOMP_parallel_sections_start",
};
unsigned i;
asection *sym_sec, *code_sec;
bfd_vma sym_value, code_value;
bfd_vma destination;
+ unsigned long local_off;
bfd_boolean ok_dest;
struct ppc_link_hash_entry *hash;
struct ppc_link_hash_entry *fdh;
}
destination = 0;
+ local_off = 0;
if (ok_dest)
{
sym_value += irela->r_addend;
destination = (sym_value
+ sym_sec->output_offset
+ sym_sec->output_section->vma);
+ local_off = PPC64_LOCAL_ENTRY_OFFSET (hash
+ ? hash->elf.other
+ : sym->st_other);
}
code_sec = sym_sec;
/* Determine what (if any) linker stub is needed. */
plt_ent = NULL;
stub_type = ppc_type_of_stub (section, irela, &hash,
- &plt_ent, destination);
+ &plt_ent, destination,
+ local_off);
if (stub_type != ppc_stub_plt_call)
{
}
stub_entry->h = hash;
stub_entry->plt_ent = plt_ent;
- stub_entry->addend = irela->r_addend;
+ stub_entry->other = hash ? hash->elf.other : sym->st_other;
if (stub_entry->h != NULL)
htab->stub_globals += 1;
move, we'll be called again. Provide a value for TOCstart. */
bfd_vma
-ppc64_elf_toc (bfd *obfd)
+ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd)
{
asection *s;
bfd_vma TOCstart;
if (s != NULL)
TOCstart = s->output_section->vma + s->output_offset;
+ _bfd_set_gp_value (obfd, TOCstart);
+
+ if (info != NULL && s != NULL && is_ppc64_elf (obfd))
+ {
+ struct ppc_link_hash_table *htab = ppc_hash_table (info);
+
+ if (htab != NULL
+ && htab->elf.hgot != NULL)
+ {
+ htab->elf.hgot->type = STT_OBJECT;
+ htab->elf.hgot->root.type = bfd_link_hash_defined;
+ htab->elf.hgot->root.u.def.value = TOC_BASE_OFF;
+ htab->elf.hgot->root.u.def.section = s;
+ }
+ }
return TOCstart;
}
plt0 -= htab->glink->output_section->vma + htab->glink->output_offset;
bfd_put_64 (htab->glink->owner, plt0, p);
p += 8;
- bfd_put_32 (htab->glink->owner, MFLR_R12, p);
- p += 4;
- bfd_put_32 (htab->glink->owner, BCL_20_31, p);
- p += 4;
- bfd_put_32 (htab->glink->owner, MFLR_R11, p);
- p += 4;
- bfd_put_32 (htab->glink->owner, LD_R2_M16R11, p);
- p += 4;
- bfd_put_32 (htab->glink->owner, MTLR_R12, p);
- p += 4;
- bfd_put_32 (htab->glink->owner, ADD_R12_R2_R11, p);
- p += 4;
- bfd_put_32 (htab->glink->owner, LD_R11_0R12, p);
- p += 4;
- bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
- p += 4;
- bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
- p += 4;
- bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
- p += 4;
+ if (htab->opd_abi)
+ {
+ bfd_put_32 (htab->glink->owner, MFLR_R12, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, BCL_20_31, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, MFLR_R11, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, MTLR_R12, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, LD_R12_0R11, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, MTCTR_R12, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p);
+ p += 4;
+ }
+ else
+ {
+ bfd_put_32 (htab->glink->owner, MFLR_R0, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, BCL_20_31, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, MFLR_R11, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, MTLR_R0, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, LD_R12_0R11, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, MTCTR_R12, p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p);
+ p += 4;
+ }
bfd_put_32 (htab->glink->owner, BCTR, p);
p += 4;
while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE)
indx = 0;
while (p < htab->glink->contents + htab->glink->size)
{
- if (indx < 0x8000)
+ if (htab->opd_abi)
{
- bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
- p += 4;
- }
- else
- {
- bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
- p += 4;
- bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
- p += 4;
+ if (indx < 0x8000)
+ {
+ bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
+ p += 4;
+ }
+ else
+ {
+ bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
+ p += 4;
+ bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx),
+ p);
+ p += 4;
+ }
}
bfd_put_32 (htab->glink->owner,
B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p);
bfd_vma relocation;
bfd_boolean unresolved_reloc;
bfd_boolean warned;
+ enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest;
unsigned int insn;
unsigned int mask;
struct ppc_stub_hash_entry *stub_entry;
if (info->relocatable)
continue;
+ if (h != NULL && &h->elf == htab->elf.hgot)
+ {
+ relocation = (TOCstart
+ + htab->stub_group[input_section->id].toc_off);
+ sec = bfd_abs_section_ptr;
+ unresolved_reloc = FALSE;
+ }
+
/* TLS optimizations. Replace instruction sequences and relocs
based on information we collected in tls_optimize. We edit
RELOCS so that --emit-relocs will output something sensible
else
info->callbacks->einfo
(!IS_PPC64_TLS_RELOC (r_type)
- ? _("%P: %H: %s used with TLS symbol %s\n")
- : _("%P: %H: %s used with non-TLS symbol %s\n"),
+ ? _("%P: %H: %s used with TLS symbol `%T'\n")
+ : _("%P: %H: %s used with non-TLS symbol `%T'\n"),
input_bfd, input_section, rel->r_offset,
ppc64_elf_howto_table[r_type]->name,
sym_name);
insn = 0;
max_br_offset = 1 << 25;
addend = rel->r_addend;
+ reloc_dest = DEST_NORMAL;
switch (r_type)
{
default:
insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
if (insn == NOP
|| insn == CROR_151515 || insn == CROR_313131)
- bfd_put_32 (input_bfd, STD_R2_40R1,
+ bfd_put_32 (input_bfd,
+ STD_R2_0R1 + STK_TOC (htab),
contents + rel->r_offset);
}
break;
{
bfd_boolean can_plt_call = FALSE;
+ /* All of these stubs will modify r2, so there must be a
+ branch and link followed by a nop. The nop is
+ replaced by an insn to restore r2. */
if (rel->r_offset + 8 <= input_section->size)
{
- unsigned long nop;
- nop = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
- if (nop == NOP
- || nop == CROR_151515 || nop == CROR_313131)
+ unsigned long br;
+
+ br = bfd_get_32 (input_bfd,
+ contents + rel->r_offset);
+ if ((br & 1) != 0)
{
- if (h != NULL
- && (h == htab->tls_get_addr_fd
- || h == htab->tls_get_addr)
- && !htab->no_tls_get_addr_opt)
+ unsigned long nop;
+
+ nop = bfd_get_32 (input_bfd,
+ contents + rel->r_offset + 4);
+ if (nop == NOP
+ || nop == CROR_151515 || nop == CROR_313131)
{
- /* Special stub used, leave nop alone. */
+ if (h != NULL
+ && (h == htab->tls_get_addr_fd
+ || h == htab->tls_get_addr)
+ && !htab->no_tls_get_addr_opt)
+ {
+ /* Special stub used, leave nop alone. */
+ }
+ else
+ bfd_put_32 (input_bfd,
+ LD_R2_0R1 + STK_TOC (htab),
+ contents + rel->r_offset + 4);
+ can_plt_call = TRUE;
}
- else
- bfd_put_32 (input_bfd, LD_R2_40R1,
- contents + rel->r_offset + 4);
- can_plt_call = TRUE;
}
}
- if (!can_plt_call)
+ if (!can_plt_call && h != NULL)
{
- if (stub_entry->stub_type == ppc_stub_plt_call
- || stub_entry->stub_type == ppc_stub_plt_call_r2save)
- {
- /* If this is a plain branch rather than a branch
- and link, don't require a nop. However, don't
- allow tail calls in a shared library as they
- will result in r2 being corrupted. */
- unsigned long br;
- br = bfd_get_32 (input_bfd, contents + rel->r_offset);
- if (info->executable && (br & 1) == 0)
- can_plt_call = TRUE;
- else
- stub_entry = NULL;
- }
- else if (h != NULL
- && strcmp (h->elf.root.root.string,
- ".__libc_start_main") == 0)
+ const char *name = h->elf.root.root.string;
+
+ if (*name == '.')
+ ++name;
+
+ if (strncmp (name, "__libc_start_main", 17) == 0
+ && (name[17] == 0 || name[17] == '@'))
{
- /* Allow crt1 branch to go via a toc adjusting stub. */
+ /* Allow crt1 branch to go via a toc adjusting
+ stub. Other calls that never return could do
+ the same, if we could detect such. */
can_plt_call = TRUE;
}
- else
+ }
+
+ if (!can_plt_call)
+ {
+ /* g++ as of 20130507 emits self-calls without a
+ following nop. This is arguably wrong since we
+ have conflicting information. On the one hand a
+ global symbol and on the other a local call
+ sequence, but don't error for this special case.
+ It isn't possible to cheaply verify we have
+ exactly such a call. Allow all calls to the same
+ section. */
+ asection *code_sec = sec;
+
+ if (get_opd_info (sec) != NULL)
{
- if (strcmp (input_section->output_section->name,
- ".init") == 0
- || strcmp (input_section->output_section->name,
- ".fini") == 0)
- info->callbacks->einfo
- (_("%P: %H: automatic multiple TOCs "
- "not supported using your crt files; "
- "recompile with -mminimal-toc or upgrade gcc\n"),
- input_bfd, input_section, rel->r_offset);
- else
- info->callbacks->einfo
- (_("%P: %H: sibling call optimization to `%s' "
- "does not allow automatic multiple TOCs; "
- "recompile with -mminimal-toc or "
- "-fno-optimize-sibling-calls, "
- "or make `%s' extern\n"),
- input_bfd, input_section, rel->r_offset,
- sym_name,
- sym_name);
- bfd_set_error (bfd_error_bad_value);
- ret = FALSE;
+ bfd_vma off = (relocation + addend
+ - sec->output_section->vma
+ - sec->output_offset);
+
+ opd_entry_value (sec, off, &code_sec, NULL, FALSE);
}
+ if (code_sec == input_section)
+ can_plt_call = TRUE;
+ }
+
+ if (!can_plt_call)
+ {
+ info->callbacks->einfo
+ (_("%P: %H: call to `%T' lacks nop, can't restore toc; "
+ "recompile with -fPIC"),
+ input_bfd, input_section, rel->r_offset, sym_name);
+
+ bfd_set_error (bfd_error_bad_value);
+ ret = FALSE;
}
if (can_plt_call
{
relocation = dest;
addend = 0;
+ reloc_dest = DEST_OPD;
}
}
+ input_section->output_offset
+ input_section->output_section->vma);
+ relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh
+ ? fdh->elf.other
+ : sym->st_other);
+
if (stub_entry != NULL
&& (stub_entry->stub_type == ppc_stub_long_branch
|| stub_entry->stub_type == ppc_stub_plt_branch)
+ stub_entry->stub_sec->output_offset
+ stub_entry->stub_sec->output_section->vma);
addend = 0;
+ reloc_dest = DEST_STUB;
if ((stub_entry->stub_type == ppc_stub_plt_call
|| stub_entry->stub_type == ppc_stub_plt_call_r2save)
{
default:
info->callbacks->einfo
- (_("%P: %B: unknown relocation type %d for symbol %s\n"),
+ (_("%P: %B: unknown relocation type %d for `%T'\n"),
input_bfd, (int) r_type, sym_name);
bfd_set_error (bfd_error_bad_value);
ifunc = (h != NULL
? h->elf.type == STT_GNU_IFUNC
: ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC);
- if ((info->shared || indx != 0)
- && (h == NULL
- || (tls_type == (TLS_TLS | TLS_LD)
- && !h->elf.def_dynamic)
- || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
- || h->elf.root.type != bfd_link_hash_undefweak))
- relgot = ppc64_elf_tdata (ent->owner)->relgot;
- else if (ifunc)
+ if (ifunc)
relgot = htab->reliplt;
+ else if ((info->shared || indx != 0)
+ && (h == NULL
+ || (tls_type == (TLS_TLS | TLS_LD)
+ && !h->elf.def_dynamic)
+ || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
+ || h->elf.root.type != bfd_link_hash_undefweak))
+ relgot = ppc64_elf_tdata (ent->owner)->relgot;
if (relgot != NULL)
{
outrel.r_offset = (got->output_section->vma
case R_PPC64_TPREL16_HA:
case R_PPC64_TPREL16_DS:
case R_PPC64_TPREL16_LO_DS:
+ case R_PPC64_TPREL16_HIGH:
+ case R_PPC64_TPREL16_HIGHA:
case R_PPC64_TPREL16_HIGHER:
case R_PPC64_TPREL16_HIGHERA:
case R_PPC64_TPREL16_HIGHEST:
case R_PPC64_DTPREL16_HA:
case R_PPC64_DTPREL16_DS:
case R_PPC64_DTPREL16_LO_DS:
+ case R_PPC64_DTPREL16_HIGH:
+ case R_PPC64_DTPREL16_HIGHA:
case R_PPC64_DTPREL16_HIGHER:
case R_PPC64_DTPREL16_HIGHERA:
case R_PPC64_DTPREL16_HIGHEST:
case R_PPC64_ADDR16_DS:
case R_PPC64_ADDR16_HA:
case R_PPC64_ADDR16_HI:
+ case R_PPC64_ADDR16_HIGH:
+ case R_PPC64_ADDR16_HIGHA:
case R_PPC64_ADDR16_HIGHER:
case R_PPC64_ADDR16_HIGHERA:
case R_PPC64_ADDR16_HIGHEST:
: ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
{
info->callbacks->einfo
- (_("%P: %H: relocation %s for indirect "
- "function %s unsupported\n"),
+ (_("%P: %H: %s for indirect "
+ "function `%T' unsupported\n"),
input_bfd, input_section, rel->r_offset,
ppc64_elf_howto_table[r_type]->name,
sym_name);
}
sreloc = elf_section_data (input_section)->sreloc;
- if (!htab->elf.dynamic_sections_created)
+ if (h != NULL
+ ? h->elf.type == STT_GNU_IFUNC
+ : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
sreloc = htab->reliplt;
if (sreloc == NULL)
abort ();
/* These ones haven't been implemented yet. */
info->callbacks->einfo
- (_("%P: %B: relocation %s is not supported for symbol %s\n"),
+ (_("%P: %B: %s is not supported for `%T'\n"),
input_bfd,
ppc64_elf_howto_table[r_type]->name, sym_name);
default:
break;
- case R_PPC64_ADDR16_HA:
case R_PPC64_REL16_HA:
+ case R_PPC64_ADDR16_HA:
+ case R_PPC64_ADDR16_HIGHA:
case R_PPC64_ADDR16_HIGHERA:
case R_PPC64_ADDR16_HIGHESTA:
case R_PPC64_TOC16_HA:
case R_PPC64_SECTOFF_HA:
case R_PPC64_TPREL16_HA:
- case R_PPC64_DTPREL16_HA:
- case R_PPC64_TPREL16_HIGHER:
+ case R_PPC64_TPREL16_HIGHA:
case R_PPC64_TPREL16_HIGHERA:
- case R_PPC64_TPREL16_HIGHEST:
case R_PPC64_TPREL16_HIGHESTA:
- case R_PPC64_DTPREL16_HIGHER:
+ case R_PPC64_DTPREL16_HA:
+ case R_PPC64_DTPREL16_HIGHA:
case R_PPC64_DTPREL16_HIGHERA:
- case R_PPC64_DTPREL16_HIGHEST:
case R_PPC64_DTPREL16_HIGHESTA:
/* It's just possible that this symbol is a weak symbol
that's not actually defined anywhere. In that case,
rel->r_offset) != (bfd_vma) -1)
{
info->callbacks->einfo
- (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
+ (_("%P: %H: unresolvable %s against `%T'\n"),
input_bfd, input_section, rel->r_offset,
ppc64_elf_howto_table[(int) r_type]->name,
h->elf.root.root.string);
if (r != bfd_reloc_ok)
{
- if (sym_name == NULL)
- sym_name = "(null)";
+ char *more_info = NULL;
+ const char *reloc_name = ppc64_elf_howto_table[r_type]->name;
+
+ if (reloc_dest != DEST_NORMAL)
+ {
+ more_info = bfd_malloc (strlen (reloc_name) + 8);
+ if (more_info != NULL)
+ {
+ strcpy (more_info, reloc_name);
+ strcat (more_info, (reloc_dest == DEST_OPD
+ ? " (OPD)" : " (stub)"));
+ reloc_name = more_info;
+ }
+ }
+
if (r == bfd_reloc_overflow)
{
if (warned)
}
if (!((*info->callbacks->reloc_overflow)
- (info, (h ? &h->elf.root : NULL), sym_name,
- ppc64_elf_howto_table[r_type]->name,
- orig_rel.r_addend, input_bfd, input_section,
- rel->r_offset)))
+ (info, &h->elf.root, sym_name,
+ reloc_name, orig_rel.r_addend,
+ input_bfd, input_section, rel->r_offset)))
return FALSE;
}
else
{
info->callbacks->einfo
- (_("%P: %H: %s reloc against `%s': error %d\n"),
+ (_("%P: %H: %s against `%T': error %d\n"),
input_bfd, input_section, rel->r_offset,
- ppc64_elf_howto_table[r_type]->name,
- sym_name,
- (int) r);
+ reloc_name, sym_name, (int) r);
ret = FALSE;
}
+ if (more_info != NULL)
+ free (more_info);
}
}
bfd_size_type amt;
amt = input_section->reloc_count * sizeof (Elf_Internal_Rela);
rel = bfd_alloc (input_bfd, amt);
- BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd_relocs == NULL);
- ppc64_elf_tdata (input_bfd)->opd_relocs = rel;
+ BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL);
+ ppc64_elf_tdata (input_bfd)->opd.relocs = rel;
if (rel == NULL)
return FALSE;
memcpy (rel, relocs, amt);
rela.r_offset = (htab->iplt->output_section->vma
+ htab->iplt->output_offset
+ ent->plt.offset);
- rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
+ if (htab->opd_abi)
+ rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL);
+ else
+ rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE);
rela.r_addend = (h->root.u.def.value
+ h->root.u.def.section->output_offset
+ h->root.u.def.section->output_section->vma
rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
rela.r_addend = ent->addend;
loc = (htab->relplt->contents
- + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE)
- / (PLT_ENTRY_SIZE / sizeof (Elf64_External_Rela))));
+ + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab))
+ / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela)));
}
bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
}
dynamic linker, before writing them out. */
static enum elf_reloc_type_class
-ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
+ppc64_elf_reloc_type_class (const struct bfd_link_info *info,
+ const asection *rel_sec,
+ const Elf_Internal_Rela *rela)
{
enum elf_ppc64_reloc_type r_type;
+ struct ppc_link_hash_table *htab = ppc_hash_table (info);
+
+ if (rel_sec == htab->reliplt)
+ return reloc_class_ifunc;
r_type = ELF64_R_TYPE (rela->r_info);
switch (r_type)
of glink rather than the first entry point, which is
what ld.so needs, and now have a bigger stub to
support automatic multiple TOCs. */
- dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
+ dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4;
break;
case DT_PPC64_OPD:
{
/* Set .plt entry size. */
elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
- = PLT_ENTRY_SIZE;
+ = PLT_ENTRY_SIZE (htab);
}
/* brlt is SEC_LINKER_CREATED, so we need to write out relocs for
projects / deliverable / binutils-gdb.git / blobdiff