diff options
author | Michael Eager <eager@eagercon.com> | 2012-12-11 16:56:53 +0000 |
---|---|---|
committer | Michael Eager <eager@eagercon.com> | 2012-12-11 16:56:53 +0000 |
commit | 69b06cc85f4c884ae68fe35404cdfbcd188f69b9 (patch) | |
tree | 697c41601f068f3491bd3930d16527419931e58a | |
parent | 3e3420f6a11ef07df4bd3d2be38481870f2834cf (diff) | |
download | ppe42-binutils-69b06cc85f4c884ae68fe35404cdfbcd188f69b9.tar.gz ppe42-binutils-69b06cc85f4c884ae68fe35404cdfbcd188f69b9.zip |
Microblaze: Add support for handling TLS symbol suffixes and generating
TLS relocs for General Dynamic and Local Dynamic models.
bfd/Changelog
* reloc.c: Add new relocations
* bfd-in2.h: Regenerated
* libbfd.h: Regenerated
* elf32-microblaze.c (microblaze_elf_howto_raw):
Add TLS relocations
(microblaze_elf_reloc_type_lookup): Likewise
(elf32_mb_link_hash_entry): define TLS reference types
(elf32_mb_link_hash_table): add TLS Local dynamic GOT entry
#define has_tls_reloc if section has TLS relocs
(dtprel_base), (check_unique_offset): New
(microblaze_elf_output_dynamic_relocation): output simple
dynamic relocation into SRELOC.
(microblaze_elf_relocate_section): Accommodate TLS relocations.
(microblaze_elf_check_relocs): Likewise
(update_local_sym_info): New
(microblaze_elf_copy_indirect_symbol): Add tls_mask.
(allocate_dynrelocs): Handle TLS symbol
(microblaze_elf_size_dynamic_sections): Set size and offset
(microblaze_elf_finish_dynamic_symbol): Use
microblaze_elf_output_dynamic_relocation
gas/Changelog
* config/tc-microblaze.c: Define TLS offsets
(md_relax_table): Add TLS offsets
(imm_types), (match_imm), (get_imm_otype): New to support
TLS offsets.
(tc_microblaze_fix_adjustable): Add TLS relocs.
(md_convert_frag): Support TLS offsets.
(md_apply_fix), (md_estimate_size_before_relax), (tc_gen_reloc):
Add TLS relocs
include/Changelog
* elf/microblaze.h: Add TLS relocs to START_RELOC_NUMBERS
-rw-r--r-- | bfd/ChangeLog | 22 | ||||
-rw-r--r-- | bfd/bfd-in2.h | 31 | ||||
-rw-r--r-- | bfd/elf32-microblaze.c | 629 | ||||
-rw-r--r-- | bfd/libbfd.h | 8 | ||||
-rw-r--r-- | bfd/reloc.c | 39 | ||||
-rw-r--r-- | gas/ChangeLog | 10 | ||||
-rw-r--r-- | gas/config/tc-microblaze.c | 200 | ||||
-rw-r--r-- | include/ChangeLog | 4 | ||||
-rw-r--r-- | include/elf/microblaze.h | 8 |
9 files changed, 785 insertions, 166 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index ff06aee052..5c4ace1783 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,25 @@ +2012-12-10 Edgar E. Iglesias <edgar.iglesias@gmail.com> + + * reloc.c (MICROBLAZE): Document new relocations + * bfd-in2.h: Regenerated + * libbfd.h: Regenerated + * elf32-microblaze.c (microblaze_elf_howto_raw): Add TLS relocations + (microblaze_elf_reloc_type_lookup): Likewise + (elf32_mb_link_hash_entry): define TLS reference types + (elf32_mb_link_hash_table): add TLS Local dynamic GOT entry + #define has_tls_reloc if section has TLS relocs + (dtprel_base), (check_unique_offset): New + (microblaze_elf_output_dynamic_relocation): output simple + dynamic relocation into SRELOC. + (microblaze_elf_relocate_section): Accommodate TLS relocations. + (microblaze_elf_check_relocs): Likewise + (update_local_sym_info): New + (microblaze_elf_copy_indirect_symbol): Add tls_mask. + (allocate_dynrelocs): Handle TLS symbol + (microblaze_elf_size_dynamic_sections): Set size and offset + (microblaze_elf_finish_dynamic_symbol): Use + microblaze_elf_output_dynamic_relocation + 2012-12-09 H.J. Lu <hongjiu.lu@intel.com> PR binutils/14933 diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h index bba8757c56..82537c1df0 100644 --- a/bfd/bfd-in2.h +++ b/bfd/bfd-in2.h @@ -5071,6 +5071,37 @@ value in a word. The relocation is relative offset from */ the dynamic object into the runtime process image. */ BFD_RELOC_MICROBLAZE_COPY, +/* Unused Reloc */ + BFD_RELOC_MICROBLAZE_64_TLS, + +/* This is a 64 bit reloc that stores the 32 bit GOT relative value +of the GOT TLS GD info entry in two words (with an imm instruction). The +relocation is GOT offset. */ + BFD_RELOC_MICROBLAZE_64_TLSGD, + +/* This is a 64 bit reloc that stores the 32 bit GOT relative value +of the GOT TLS LD info entry in two words (with an imm instruction). The +relocation is GOT offset. */ + BFD_RELOC_MICROBLAZE_64_TLSLD, + +/* This is a 32 bit reloc that stores the Module ID to GOT(n). */ + BFD_RELOC_MICROBLAZE_32_TLSDTPMOD, + +/* This is a 32 bit reloc that stores TLS offset to GOT(n+1). */ + BFD_RELOC_MICROBLAZE_32_TLSDTPREL, + +/* This is a 32 bit reloc for storing TLS offset to two words (uses imm +instruction) */ + BFD_RELOC_MICROBLAZE_64_TLSDTPREL, + +/* This is a 64 bit reloc that stores 32-bit thread pointer relative offset +to two words (uses imm instruction). */ + BFD_RELOC_MICROBLAZE_64_TLSGOTTPREL, + +/* This is a 64 bit reloc that stores 32-bit thread pointer relative offset +to two words (uses imm instruction). */ + BFD_RELOC_MICROBLAZE_64_TLSTPREL, + /* AArch64 ADD immediate instruction, holding bits 0 to 11 of the address. Used in conjunction with BFD_RELOC_AARCH64_ADR_HI21_PCREL. */ BFD_RELOC_AARCH64_ADD_LO12, diff --git a/bfd/elf32-microblaze.c b/bfd/elf32-microblaze.c index be2de13425..9d0a7ca49d 100644 --- a/bfd/elf32-microblaze.c +++ b/bfd/elf32-microblaze.c @@ -370,6 +370,132 @@ static reloc_howto_type microblaze_elf_howto_raw[] = 0, /* Source Mask. */ 0x0000ffff, /* Dest Mask. */ FALSE), /* PC relative offset? */ + + /* Marker relocs for TLS. */ + HOWTO (R_MICROBLAZE_TLS, + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MICROBLAZE_TLS", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + HOWTO (R_MICROBLAZE_TLSGD, + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MICROBLAZE_TLSGD", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + HOWTO (R_MICROBLAZE_TLSLD, + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MICROBLAZE_TLSLD", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* Computes the load module index of the load module that contains the + definition of its TLS sym. */ + HOWTO (R_MICROBLAZE_TLSDTPMOD32, + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MICROBLAZE_TLSDTPMOD32", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* Computes a dtv-relative displacement, the difference between the value + of sym+add and the base address of the thread-local storage block that + contains the definition of sym, minus 0x8000. Used for initializing GOT */ + HOWTO (R_MICROBLAZE_TLSDTPREL32, + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MICROBLAZE_TLSDTPREL32", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* Computes a dtv-relative displacement, the difference between the value + of sym+add and the base address of the thread-local storage block that + contains the definition of sym, minus 0x8000. */ + HOWTO (R_MICROBLAZE_TLSDTPREL64, + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MICROBLAZE_TLSDTPREL64", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* Computes a tp-relative displacement, the difference between the value of + sym+add and the value of the thread pointer (r13). */ + HOWTO (R_MICROBLAZE_TLSGOTTPREL32, + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MICROBLAZE_TLSGOTTPREL32", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* Computes a tp-relative displacement, the difference between the value of + sym+add and the value of the thread pointer (r13). */ + HOWTO (R_MICROBLAZE_TLSTPREL32, + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MICROBLAZE_TLSTPREL32", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + }; #ifndef NUM_ELEM @@ -461,6 +587,27 @@ microblaze_elf_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, case BFD_RELOC_MICROBLAZE_32_GOTOFF: microblaze_reloc = R_MICROBLAZE_GOTOFF_32; break; + case BFD_RELOC_MICROBLAZE_64_TLSGD: + microblaze_reloc = R_MICROBLAZE_TLSGD; + break; + case BFD_RELOC_MICROBLAZE_64_TLSLD: + microblaze_reloc = R_MICROBLAZE_TLSLD; + break; + case BFD_RELOC_MICROBLAZE_32_TLSDTPREL: + microblaze_reloc = R_MICROBLAZE_TLSDTPREL32; + break; + case BFD_RELOC_MICROBLAZE_64_TLSDTPREL: + microblaze_reloc = R_MICROBLAZE_TLSDTPREL64; + break; + case BFD_RELOC_MICROBLAZE_32_TLSDTPMOD: + microblaze_reloc = R_MICROBLAZE_TLSDTPMOD32; + break; + case BFD_RELOC_MICROBLAZE_64_TLSGOTTPREL: + microblaze_reloc = R_MICROBLAZE_TLSGOTTPREL32; + break; + case BFD_RELOC_MICROBLAZE_64_TLSTPREL: + microblaze_reloc = R_MICROBLAZE_TLSTPREL32; + break; case BFD_RELOC_MICROBLAZE_COPY: microblaze_reloc = R_MICROBLAZE_COPY; break; @@ -550,8 +697,21 @@ struct elf32_mb_link_hash_entry /* Track dynamic relocs copied for this symbol. */ struct elf32_mb_dyn_relocs *dyn_relocs; + /* TLS Reference Types for the symbol; Updated by check_relocs */ +#define TLS_GD 1 /* GD reloc. */ +#define TLS_LD 2 /* LD reloc. */ +#define TLS_TPREL 4 /* TPREL reloc, => IE. */ +#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ +#define TLS_TLS 16 /* Any TLS reloc. */ + unsigned char tls_mask; + }; +#define IS_TLS_GD(x) (x == (TLS_TLS | TLS_GD)) +#define IS_TLS_LD(x) (x == (TLS_TLS | TLS_LD)) +#define IS_TLS_DTPREL(x) (x == (TLS_TLS | TLS_DTPREL)) +#define IS_TLS_NONE(x) (x == 0) + #define elf32_mb_hash_entry(ent) ((struct elf32_mb_link_hash_entry *)(ent)) /* ELF linker hash table. */ @@ -571,8 +731,17 @@ struct elf32_mb_link_hash_table /* Small local sym to section mapping cache. */ struct sym_cache sym_sec; + + /* TLS Local Dynamic GOT Entry */ + union { + bfd_signed_vma refcount; + bfd_vma offset; + } tlsld_got; }; +/* Nonzero if this section has TLS related relocations. */ +#define has_tls_reloc sec_flg0 + /* Get the ELF linker hash table from a link_info structure. */ #define elf32_mb_hash_table(p) \ @@ -604,6 +773,7 @@ link_hash_newfunc (struct bfd_hash_entry *entry, eh = (struct elf32_mb_link_hash_entry *) entry; eh->dyn_relocs = NULL; + eh->tls_mask = 0; } return entry; @@ -654,6 +824,40 @@ microblaze_elf_final_sdp (struct bfd_link_info *info) + h->u.def.section->output_offset); } +static bfd_vma +dtprel_base (struct bfd_link_info *info) +{ + /* If tls_sec is NULL, we should have signalled an error already. */ + if (elf_hash_table (info)->tls_sec == NULL) + return 0; + return elf_hash_table (info)->tls_sec->vma; +} + +/* The size of the thread control block. */ +#define TCB_SIZE 8 + +/* Output a simple dynamic relocation into SRELOC. */ + +static void +microblaze_elf_output_dynamic_relocation (bfd *output_bfd, + asection *sreloc, + unsigned long reloc_index, + unsigned long indx, + int r_type, + bfd_vma offset, + bfd_vma addend) +{ + + Elf_Internal_Rela rel; + + rel.r_info = ELF32_R_INFO (indx, r_type); + rel.r_offset = offset; + rel.r_addend = addend; + + bfd_elf32_swap_reloca_out (output_bfd, &rel, + (sreloc->contents + reloc_index * sizeof (Elf32_External_Rela))); +} + /* This code is taken from elf32-m32r.c There is some attempt to make this function usable for many architectures, both USE_REL and USE_RELA ['twould be nice if such a critter existed], @@ -707,6 +911,7 @@ microblaze_elf_relocate_section (bfd *output_bfd, bfd_boolean ret = TRUE; asection *sreloc; bfd_vma *local_got_offsets; + unsigned int tls_type; if (!microblaze_elf_howto_table[R_MICROBLAZE_max-1]) microblaze_elf_howto_init (); @@ -738,6 +943,8 @@ microblaze_elf_relocate_section (bfd *output_bfd, h = NULL; r_type = ELF32_R_TYPE (rel->r_info); + tls_type = 0; + if (r_type < 0 || r_type >= (int) R_MICROBLAZE_max) { (*_bfd_error_handler) (_("%s: unknown relocation type %d"), @@ -971,70 +1178,182 @@ microblaze_elf_relocate_section (bfd *output_bfd, break; } + case (int) R_MICROBLAZE_TLSGD: + tls_type = (TLS_TLS | TLS_GD); + goto dogot; + case (int) R_MICROBLAZE_TLSLD: + tls_type = (TLS_TLS | TLS_LD); + dogot: case (int) R_MICROBLAZE_GOT_64: { + bfd_vma *offp; + bfd_vma off, off2; + unsigned long indx; + bfd_vma static_value; + + bfd_boolean need_relocs = FALSE; if (htab->sgot == NULL) abort (); - if (h == NULL) + + indx = 0; + offp = NULL; + + /* 1. Identify GOT Offset; + 2. Compute Static Values + 3. Process Module Id, Process Offset + 4. Fixup Relocation with GOT offset value. */ + + /* 1. Determine GOT Offset to use : TLS_LD, global, local */ + if (IS_TLS_LD (tls_type)) + offp = &htab->tlsld_got.offset; + else if (h != NULL) + { + if (htab->sgotplt != NULL && h->got.offset != (bfd_vma) -1) + offp = &h->got.offset; + else + abort (); + } + else { - bfd_vma off; if (local_got_offsets == NULL) abort (); - off = local_got_offsets[r_symndx]; - /* The LSB indicates whether we've already - created relocation. */ - if (off & 1) - off &= ~1; - else - { - bfd_put_32 (output_bfd, relocation + addend, - htab->sgot->contents + off); + offp = &local_got_offsets[r_symndx]; + } + + if (!offp) + abort (); + + off = (*offp) & ~1; + off2 = off; + + if (IS_TLS_LD(tls_type) || IS_TLS_GD(tls_type)) + off2 = off + 4; + + /* Symbol index to use for relocs */ + if (h != NULL) + { + bfd_boolean dyn = + elf_hash_table (info)->dynamic_sections_created; + + if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) + && (!info->shared || !SYMBOL_REFERENCES_LOCAL (info, h))) + indx = h->dynindx; + } - if (info->shared) + /* Need to generate relocs ? */ + if ((info->shared || indx != 0) + && (h == NULL + || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT + || h->root.type != bfd_link_hash_undefweak)) + need_relocs = TRUE; + + /* 2. Compute/Emit Static value of r-expression */ + static_value = relocation + addend; + + /* 3. Process module-id and offset */ + if (! ((*offp) & 1) ) + { + bfd_vma got_offset; + + got_offset = (htab->sgot->output_section->vma + + htab->sgot->output_offset + + off); + + /* Process module-id */ + if (IS_TLS_LD(tls_type)) + { + if (! info->shared) { - Elf_Internal_Rela outrel; - bfd_byte *loc; - if (htab->srelgot == NULL) - abort (); - outrel.r_offset = (htab->sgot->output_section->vma - + htab->sgot->output_offset - + off); - outrel.r_info = ELF32_R_INFO (0, R_MICROBLAZE_REL); - outrel.r_addend = relocation + addend; - loc = htab->srelgot->contents; - loc += htab->srelgot->reloc_count++ - * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); + bfd_put_32 (output_bfd, 1, htab->sgot->contents + off); + } + else + { + microblaze_elf_output_dynamic_relocation (output_bfd, + htab->srelgot, htab->srelgot->reloc_count++, + /* symindex= */ 0, R_MICROBLAZE_TLSDTPMOD32, + got_offset, 0); } - local_got_offsets[r_symndx] |= 1; } - relocation = htab->sgot->output_section->vma - + htab->sgot->output_offset + off - - htab->sgotplt->output_section->vma - - htab->sgotplt->output_offset; - unresolved_reloc = FALSE; - } - else - { - if (htab->sgotplt != NULL && h != NULL - && h->got.offset != (bfd_vma) -1) + else if (IS_TLS_GD(tls_type)) + { + if (! need_relocs) + { + bfd_put_32 (output_bfd, 1, htab->sgot->contents + off); + } + else + { + microblaze_elf_output_dynamic_relocation (output_bfd, + htab->srelgot, + htab->srelgot->reloc_count++, + /* symindex= */ indx, R_MICROBLAZE_TLSDTPMOD32, + got_offset, indx ? 0 : static_value); + } + } + + /* Process Offset */ + if (htab->srelgot == NULL) + abort (); + + got_offset = (htab->sgot->output_section->vma + + htab->sgot->output_offset + + off2); + if (IS_TLS_LD(tls_type)) + { + /* For LD, offset should be 0 */ + *offp |= 1; + bfd_put_32 (output_bfd, 0, htab->sgot->contents + off2); + } + else if (IS_TLS_GD(tls_type)) { - bfd_put_32 (output_bfd, relocation + addend, - htab->sgot->contents + h->got.offset); - relocation = htab->sgot->output_section->vma - + htab->sgot->output_offset - + h->got.offset - - htab->sgotplt->output_section->vma - - htab->sgotplt->output_offset; - unresolved_reloc = FALSE; + *offp |= 1; + static_value -= dtprel_base(info); + if (need_relocs) + { + microblaze_elf_output_dynamic_relocation (output_bfd, + htab->srelgot, htab->srelgot->reloc_count++, + /* symindex= */ indx, R_MICROBLAZE_TLSDTPREL32, + got_offset, indx ? 0 : static_value); + } + else + { + bfd_put_32 (output_bfd, static_value, + htab->sgot->contents + off2); + } } else - abort (); /* ??? */ + { + bfd_put_32 (output_bfd, static_value, + htab->sgot->contents + off2); + + /* Relocs for dyn symbols generated by + finish_dynamic_symbols */ + if (info->shared && h == NULL) + { + *offp |= 1; + microblaze_elf_output_dynamic_relocation (output_bfd, + htab->srelgot, htab->srelgot->reloc_count++, + /* symindex= */ indx, R_MICROBLAZE_REL, + got_offset, static_value); + } + } } + + /* 4. Fixup Relocation with GOT offset value + Compute relative address of GOT entry for applying + the current relocation */ + relocation = htab->sgot->output_section->vma + + htab->sgot->output_offset + + off + - htab->sgotplt->output_section->vma + - htab->sgotplt->output_offset; + + /* Apply Current Relocation */ bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, contents + offset + endian); bfd_put_16 (input_bfd, relocation & 0xffff, contents + offset + endian + INST_WORD_SIZE); + + unresolved_reloc = FALSE; break; } @@ -1064,6 +1383,14 @@ microblaze_elf_relocate_section (bfd *output_bfd, break; } + case (int) R_MICROBLAZE_TLSDTPREL64: + relocation += addend; + relocation -= dtprel_base(info); + bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, + contents + offset + 2); + bfd_put_16 (input_bfd, relocation & 0xffff, + contents + offset + 2 + INST_WORD_SIZE); + break; case (int) R_MICROBLAZE_64_PCREL : case (int) R_MICROBLAZE_64: case (int) R_MICROBLAZE_32: @@ -1941,6 +2268,33 @@ create_got_section (bfd *dynobj, struct bfd_link_info *info) return TRUE; } +static bfd_boolean +update_local_sym_info (bfd *abfd, + Elf_Internal_Shdr *symtab_hdr, + unsigned long r_symndx, + unsigned int tls_type) +{ + bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd); + unsigned char *local_got_tls_masks; + + if (local_got_refcounts == NULL) + { + bfd_size_type size = symtab_hdr->sh_info; + + size *= (sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks)); + local_got_refcounts = bfd_zalloc (abfd, size); + if (local_got_refcounts == NULL) + return FALSE; + elf_local_got_refcounts (abfd) = local_got_refcounts; + } + + local_got_tls_masks = + (unsigned char *) (local_got_refcounts + symtab_hdr->sh_info); + local_got_tls_masks[r_symndx] |= tls_type; + local_got_refcounts[r_symndx] += 1; + + return TRUE; +} /* Look through the relocs for a section during the first phase. */ static bfd_boolean @@ -1977,6 +2331,7 @@ microblaze_elf_check_relocs (bfd * abfd, unsigned int r_type; struct elf_link_hash_entry * h; unsigned long r_symndx; + unsigned char tls_type = 0; r_symndx = ELF32_R_SYM (rel->r_info); r_type = ELF32_R_TYPE (rel->r_info); @@ -2012,6 +2367,13 @@ microblaze_elf_check_relocs (bfd * abfd, break; /* This relocation requires .got entry. */ + case R_MICROBLAZE_TLSGD: + tls_type |= (TLS_TLS | TLS_GD); + goto dogottls; + case R_MICROBLAZE_TLSLD: + tls_type |= (TLS_TLS | TLS_LD); + dogottls: + sec->has_tls_reloc = 1; case R_MICROBLAZE_GOT_64: if (htab->sgot == NULL) { @@ -2023,25 +2385,12 @@ microblaze_elf_check_relocs (bfd * abfd, if (h != NULL) { h->got.refcount += 1; + elf32_mb_hash_entry (h)->tls_mask |= tls_type; } else { - bfd_signed_vma *local_got_refcounts; - - /* This is a global offset table entry for a local symbol. */ - local_got_refcounts = elf_local_got_refcounts (abfd); - if (local_got_refcounts == NULL) - { - bfd_size_type size; - - size = symtab_hdr->sh_info; - size *= sizeof (bfd_signed_vma); - local_got_refcounts = bfd_zalloc (abfd, size); - if (local_got_refcounts == NULL) - return FALSE; - elf_local_got_refcounts (abfd) = local_got_refcounts; - } - local_got_refcounts[r_symndx] += 1; + if (! update_local_sym_info(abfd, symtab_hdr, r_symndx, tls_type) ) + return FALSE; } break; @@ -2105,45 +2454,16 @@ microblaze_elf_check_relocs (bfd * abfd, if (sreloc == NULL) { - const char *name; bfd *dynobj; - unsigned int strndx = elf_elfheader (abfd)->e_shstrndx; - unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name; - - name = bfd_elf_string_from_elf_section (abfd, strndx, shnam); - if (name == NULL) - return FALSE; - - if (strncmp (name, ".rela", 5) != 0 - || strcmp (bfd_get_section_name (abfd, sec), - name + 5) != 0) - { - (*_bfd_error_handler) - (_("%B: bad relocation section name `%s\'"), - abfd, name); - } if (htab->elf.dynobj == NULL) htab->elf.dynobj = abfd; dynobj = htab->elf.dynobj; - sreloc = bfd_get_linker_section (dynobj, name); + sreloc = _bfd_elf_make_dynamic_reloc_section (sec, dynobj, + 2, abfd, 1); if (sreloc == NULL) - { - flagword flags; - - flags = (SEC_HAS_CONTENTS | SEC_READONLY - | SEC_IN_MEMORY | SEC_LINKER_CREATED); - if ((sec->flags & SEC_ALLOC) != 0) - flags |= SEC_ALLOC | SEC_LOAD; - sreloc = bfd_make_section_anyway_with_flags (dynobj, - name, - flags); - if (sreloc == NULL - || ! bfd_set_section_alignment (dynobj, sreloc, 2)) - return FALSE; - } - elf_section_data (sec)->sreloc = sreloc; + return FALSE; } /* If this is a global symbol, we count the number of @@ -2274,6 +2594,8 @@ microblaze_elf_copy_indirect_symbol (struct bfd_link_info *info, eind->dyn_relocs = NULL; } + edir->tls_mask |= eind->tls_mask; + _bfd_elf_link_hash_copy_indirect (info, dir, ind); } @@ -2492,8 +2814,10 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void * dat) h->needs_plt = 0; } + eh = (struct elf32_mb_link_hash_entry *) h; if (h->got.refcount > 0) { + unsigned int need; asection *s; /* Make sure this symbol is output as a dynamic symbol. @@ -2505,15 +2829,43 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void * dat) return FALSE; } - s = htab->sgot; - h->got.offset = s->size; - s->size += 4; - htab->srelgot->size += sizeof (Elf32_External_Rela); + need = 0; + if ((eh->tls_mask & TLS_TLS) != 0) + { + /* Handle TLS Symbol */ + if ((eh->tls_mask & TLS_LD) != 0) + { + if (!eh->elf.def_dynamic) + /* We'll just use htab->tlsld_got.offset. This should + always be the case. It's a little odd if we have + a local dynamic reloc against a non-local symbol. */ + htab->tlsld_got.refcount += 1; + else + need += 8; + } + if ((eh->tls_mask & TLS_GD) != 0) + need += 8; + } + else + { + /* Regular (non-TLS) symbol */ + need += 4; + } + if (need == 0) + { + h->got.offset = (bfd_vma) -1; + } + else + { + s = htab->sgot; + h->got.offset = s->size; + s->size += need; + htab->srelgot->size += need * (sizeof (Elf32_External_Rela) / 4); + } } else h->got.offset = (bfd_vma) -1; - eh = (struct elf32_mb_link_hash_entry *) h; if (eh->dyn_relocs == NULL) return TRUE; @@ -2611,6 +2963,7 @@ microblaze_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, bfd_signed_vma *end_local_got; bfd_size_type locsymcount; Elf_Internal_Shdr *symtab_hdr; + unsigned char *lgot_masks; asection *srel; if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) @@ -2650,17 +3003,36 @@ microblaze_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; locsymcount = symtab_hdr->sh_info; end_local_got = local_got + locsymcount; + lgot_masks = (unsigned char *) end_local_got; s = htab->sgot; srel = htab->srelgot; - for (; local_got < end_local_got; ++local_got) - { - if (*local_got > 0) - { - *local_got = s->size; - s->size += 4; - if (info->shared) - srel->size += sizeof (Elf32_External_Rela); + for (; local_got < end_local_got; ++local_got, ++lgot_masks) + { + if (*local_got > 0) + { + unsigned int need = 0; + if ((*lgot_masks & TLS_TLS) != 0) + { + if ((*lgot_masks & TLS_GD) != 0) + need += 8; + if ((*lgot_masks & TLS_LD) != 0) + htab->tlsld_got.refcount += 1; + } + else + need += 4; + + if (need == 0) + { + *local_got = (bfd_vma) -1; + } + else + { + *local_got = s->size; + s->size += need; + if (info->shared) + srel->size += need * (sizeof (Elf32_External_Rela) / 4); + } } else *local_got = (bfd_vma) -1; @@ -2671,6 +3043,16 @@ microblaze_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, sym dynamic relocs. */ elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info); + if (htab->tlsld_got.refcount > 0) + { + htab->tlsld_got.offset = htab->sgot->size; + htab->sgot->size += 8; + if (info->shared) + htab->srelgot->size += sizeof (Elf32_External_Rela); + } + else + htab->tlsld_got.offset = (bfd_vma) -1; + if (elf_hash_table (info)->dynamic_sections_created) { /* Make space for the trailing nop in .plt. */ @@ -2789,6 +3171,7 @@ microblaze_elf_finish_dynamic_symbol (bfd *output_bfd, Elf_Internal_Sym *sym) { struct elf32_mb_link_hash_table *htab; + struct elf32_mb_link_hash_entry *eh = elf32_mb_hash_entry(h); htab = elf32_mb_hash_table (info); if (htab == NULL) @@ -2860,12 +3243,14 @@ microblaze_elf_finish_dynamic_symbol (bfd *output_bfd, } } - if (h->got.offset != (bfd_vma) -1) + /* h->got.refcount to be checked ? */ + if (h->got.offset != (bfd_vma) -1 && + ! ((h->got.offset & 1) || + IS_TLS_LD(eh->tls_mask) || IS_TLS_GD(eh->tls_mask))) { asection *sgot; asection *srela; - Elf_Internal_Rela rela; - bfd_byte *loc; + bfd_vma offset; /* This symbol has an entry in the global offset table. Set it up. */ @@ -2874,8 +3259,7 @@ microblaze_elf_finish_dynamic_symbol (bfd *output_bfd, srela = htab->srelgot; BFD_ASSERT (sgot != NULL && srela != NULL); - rela.r_offset = (sgot->output_section->vma - + sgot->output_offset + offset = (sgot->output_section->vma + sgot->output_offset + (h->got.offset &~ (bfd_vma) 1)); /* If this is a -Bsymbolic link, and the symbol is defined @@ -2888,22 +3272,25 @@ microblaze_elf_finish_dynamic_symbol (bfd *output_bfd, && h->def_regular) { asection *sec = h->root.u.def.section; - rela.r_info = ELF32_R_INFO (0, R_MICROBLAZE_REL); - rela.r_addend = (h->root.u.def.value - + sec->output_section->vma - + sec->output_offset); + microblaze_elf_output_dynamic_relocation (output_bfd, + srela, srela->reloc_count++, + /* symindex= */ 0, + R_MICROBLAZE_REL, offset, + h->root.u.def.value + + sec->output_section->vma + + sec->output_offset); } else { - rela.r_info = ELF32_R_INFO (h->dynindx, R_MICROBLAZE_GLOB_DAT); - rela.r_addend = 0; + microblaze_elf_output_dynamic_relocation (output_bfd, + srela, srela->reloc_count++, + h->dynindx, + R_MICROBLAZE_GLOB_DAT, + offset, 0); } bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + (h->got.offset &~ (bfd_vma) 1)); - loc = srela->contents; - loc += srela->reloc_count++ * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); } if (h->needs_copy) @@ -3073,7 +3460,7 @@ microblaze_elf_add_symbol_hook (bfd *abfd, #define ELF_TARGET_ID MICROBLAZE_ELF_DATA #define ELF_MACHINE_CODE EM_MICROBLAZE #define ELF_MACHINE_ALT1 EM_MICROBLAZE_OLD -#define ELF_MAXPAGESIZE 0x4 /* 4k, if we ever have 'em. */ +#define ELF_MAXPAGESIZE 0x1000 #define elf_info_to_howto microblaze_elf_info_to_howto #define elf_info_to_howto_rel NULL diff --git a/bfd/libbfd.h b/bfd/libbfd.h index 0458e399f0..362e35f7d4 100644 --- a/bfd/libbfd.h +++ b/bfd/libbfd.h @@ -2420,6 +2420,14 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@", "BFD_RELOC_MICROBLAZE_64_GOTOFF", "BFD_RELOC_MICROBLAZE_32_GOTOFF", "BFD_RELOC_MICROBLAZE_COPY", + "BFD_RELOC_MICROBLAZE_64_TLS", + "BFD_RELOC_MICROBLAZE_64_TLSGD", + "BFD_RELOC_MICROBLAZE_64_TLSLD", + "BFD_RELOC_MICROBLAZE_32_TLSDTPMOD", + "BFD_RELOC_MICROBLAZE_32_TLSDTPREL", + "BFD_RELOC_MICROBLAZE_64_TLSDTPREL", + "BFD_RELOC_MICROBLAZE_64_TLSGOTTPREL", + "BFD_RELOC_MICROBLAZE_64_TLSTPREL", "BFD_RELOC_AARCH64_ADD_LO12", "BFD_RELOC_AARCH64_GOT_LD_PREL19", "BFD_RELOC_AARCH64_ADR_GOT_PAGE", diff --git a/bfd/reloc.c b/bfd/reloc.c index e097887182..3f880497df 100644 --- a/bfd/reloc.c +++ b/bfd/reloc.c @@ -5882,6 +5882,45 @@ ENUM ENUMDOC This is used to tell the dynamic linker to copy the value out of the dynamic object into the runtime process image. +ENUM + BFD_RELOC_MICROBLAZE_64_TLS +ENUMDOC + Unused Reloc +ENUM + BFD_RELOC_MICROBLAZE_64_TLSGD +ENUMDOC + This is a 64 bit reloc that stores the 32 bit GOT relative value + of the GOT TLS GD info entry in two words (with an imm instruction). The + relocation is GOT offset. +ENUM + BFD_RELOC_MICROBLAZE_64_TLSLD +ENUMDOC + This is a 64 bit reloc that stores the 32 bit GOT relative value + of the GOT TLS LD info entry in two words (with an imm instruction). The + relocation is GOT offset. +ENUM + BFD_RELOC_MICROBLAZE_32_TLSDTPMOD +ENUMDOC + This is a 32 bit reloc that stores the Module ID to GOT(n). +ENUM + BFD_RELOC_MICROBLAZE_32_TLSDTPREL +ENUMDOC + This is a 32 bit reloc that stores TLS offset to GOT(n+1). +ENUM + BFD_RELOC_MICROBLAZE_64_TLSDTPREL +ENUMDOC + This is a 32 bit reloc for storing TLS offset to two words (uses imm + instruction) +ENUM + BFD_RELOC_MICROBLAZE_64_TLSGOTTPREL +ENUMDOC + This is a 64 bit reloc that stores 32-bit thread pointer relative offset + to two words (uses imm instruction). +ENUM + BFD_RELOC_MICROBLAZE_64_TLSTPREL +ENUMDOC + This is a 64 bit reloc that stores 32-bit thread pointer relative offset + to two words (uses imm instruction). ENUM BFD_RELOC_AARCH64_ADD_LO12 diff --git a/gas/ChangeLog b/gas/ChangeLog index 29f88a6f4a..31804b70d6 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,13 @@ +2012-12-11 Edgar E. Iglesias <edgar.iglesias@gmail.com> + + * config/tc-microblaze.c: Define TLS offsets + (md_relax_table): Add TLS offsets + (imm_types), (match_imm), (get_imm_otype): New to support TLS offsets. + (tc_microblaze_fix_adjustable): Add TLS relocs. + (md_convert_frag): Support TLS offsets. + (md_apply_fix), (md_estimate_size_before_relax), (tc_gen_reloc): + Add TLS relocs + 2012-12-06 Yufeng Zhang <yufeng.zhang@arm.com> * config/tc-aarch64.c (exp_has_bignum_p): Remove. diff --git a/gas/config/tc-microblaze.c b/gas/config/tc-microblaze.c index e9c7846e6e..872737b3c0 100644 --- a/gas/config/tc-microblaze.c +++ b/gas/config/tc-microblaze.c @@ -81,7 +81,12 @@ const char FLT_CHARS[] = "rRsSfFdDxXpP"; #define GOT_OFFSET 8 #define PLT_OFFSET 9 #define GOTOFF_OFFSET 10 - +#define TLSGD_OFFSET 11 +#define TLSLD_OFFSET 12 +#define TLSDTPMOD_OFFSET 13 +#define TLSDTPREL_OFFSET 14 +#define TLSGOTTPREL_OFFSET 15 +#define TLSTPREL_OFFSET 16 /* Initialize the relax table. */ const relax_typeS md_relax_table[] = @@ -97,6 +102,12 @@ const relax_typeS md_relax_table[] = { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 8: GOT_OFFSET. */ { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 9: PLT_OFFSET. */ { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 10: GOTOFF_OFFSET. */ + { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 11: TLSGD_OFFSET. */ + { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 12: TLSLD_OFFSET. */ + { 0x7fffffff, 0x80000000, INST_WORD_SIZE*1, 0 }, /* 13: TLSDTPMOD_OFFSET. */ + { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 14: TLSDTPREL_OFFSET. */ + { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 }, /* 15: TLSGOTTPREL_OFFSET. */ + { 0x7fffffff, 0x80000000, INST_WORD_SIZE*2, 0 } /* 16: TLSTPREL_OFFSET. */ }; static struct hash_control * opcode_hash_control; /* Opcode mnemonics. */ @@ -599,9 +610,75 @@ parse_exp (char *s, expressionS *e) } /* Symbol modifiers (@GOT, @PLT, @GOTOFF). */ +#define IMM_NONE 0 #define IMM_GOT 1 #define IMM_PLT 2 #define IMM_GOTOFF 3 +#define IMM_TLSGD 4 +#define IMM_TLSLD 5 +#define IMM_TLSDTPMOD 6 +#define IMM_TLSDTPREL 7 +#define IMM_TLSTPREL 8 +#define IMM_MAX 9 + +struct imm_type { + char *isuffix; /* Suffix String */ + int itype; /* Suffix Type */ + int otype; /* Offset Type */ +}; + +/* These are NOT in assending order of type, GOTOFF is ahead to make + sure @GOTOFF does not get matched with @GOT */ +static struct imm_type imm_types[] = { + { "NONE", IMM_NONE , 0 }, + { "GOTOFF", IMM_GOTOFF , GOTOFF_OFFSET }, + { "GOT", IMM_GOT , GOT_OFFSET }, + { "PLT", IMM_PLT , PLT_OFFSET }, + { "TLSGD", IMM_TLSGD , TLSGD_OFFSET }, + { "TLSLDM", IMM_TLSLD, TLSLD_OFFSET }, + { "TLSDTPMOD", IMM_TLSDTPMOD, TLSDTPMOD_OFFSET }, + { "TLSDTPREL", IMM_TLSDTPREL, TLSDTPREL_OFFSET }, + { "TLSTPREL", IMM_TLSTPREL, TLSTPREL_OFFSET } +}; + +static int +match_imm (const char *s, int *ilen) +{ + int i; + int slen; + + /* Check for matching suffix */ + for (i = 1; i < IMM_MAX; i++) + { + slen = strlen (imm_types[i].isuffix); + + if (strncmp (imm_types[i].isuffix, s, slen) == 0) + { + *ilen = slen; + return imm_types[i].itype; + } + } /* for */ + *ilen = 0; + return 0; +} + +static int +get_imm_otype (int itype) +{ + int i, otype; + + otype = 0; + /* Check for matching itype */ + for (i = 1; i < IMM_MAX; i++) + { + if (imm_types[i].itype == itype) + { + otype = imm_types[i].otype; + break; + } + } + return otype; +} static symbolS * GOT_symbol; @@ -612,6 +689,9 @@ parse_imm (char * s, expressionS * e, int min, int max) { char *new_pointer; char *atp; + int itype, ilen; + + ilen = 0; /* Find the start of "@GOT" or "@PLT" suffix (if any) */ for (atp = s; *atp != '@'; atp++) @@ -620,26 +700,18 @@ parse_imm (char * s, expressionS * e, int min, int max) if (*atp == '@') { - if (strncmp (atp + 1, "GOTOFF", 5) == 0) - { - *atp = 0; - e->X_md = IMM_GOTOFF; - } - else if (strncmp (atp + 1, "GOT", 3) == 0) - { - *atp = 0; - e->X_md = IMM_GOT; - } - else if (strncmp (atp + 1, "PLT", 3) == 0) - { - *atp = 0; - e->X_md = IMM_PLT; - } + itype = match_imm (atp + 1, &ilen); + if (itype != 0) + { + *atp = 0; + e->X_md = itype; + } else - { - atp = NULL; - e->X_md = 0; - } + { + atp = NULL; + e->X_md = 0; + ilen = 0; + } *atp = 0; } else @@ -655,6 +727,11 @@ parse_imm (char * s, expressionS * e, int min, int max) new_pointer = parse_exp (s, e); + if (!GOT_symbol && ! strncmp (s, GOT_SYMBOL_NAME, 20)) + { + GOT_symbol = symbol_find_or_make (GOT_SYMBOL_NAME); + } + if (e->X_op == O_absent) ; /* An error message has already been emitted. */ else if ((e->X_op != O_constant && e->X_op != O_symbol) ) @@ -670,9 +747,7 @@ parse_imm (char * s, expressionS * e, int min, int max) { *atp = '@'; /* restore back (needed?) */ if (new_pointer >= atp) - new_pointer += (e->X_md == IMM_GOTOFF)?7:4; - /* sizeof("@GOTOFF", "@GOT" or "@PLT") */ - + new_pointer += ilen + 1; /* sizeof (imm_suffix) + 1 for '@' */ } return new_pointer; } @@ -792,7 +867,14 @@ tc_microblaze_fix_adjustable (struct fix *fixP) if (fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOTOFF || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_32_GOTOFF || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOT - || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_PLT) + || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_PLT + || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSGD + || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSLD + || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_32_TLSDTPMOD + || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_32_TLSDTPREL + || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSDTPREL + || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSGOTTPREL + || fixP->fx_r_type == BFD_RELOC_MICROBLAZE_64_TLSTPREL) return 0; return 1; @@ -940,12 +1022,8 @@ md_assemble (char * str) opc = str_microblaze_rw_anchor; else opc = NULL; - if (exp.X_md == IMM_GOT) - subtype = GOT_OFFSET; - else if (exp.X_md == IMM_PLT) - subtype = PLT_OFFSET; - else if (exp.X_md == IMM_GOTOFF) - subtype = GOTOFF_OFFSET; + if (exp.X_md != 0) + subtype = get_imm_otype(exp.X_md); else subtype = opcode->inst_offset_type; @@ -1436,12 +1514,11 @@ md_assemble (char * str) char *opc = NULL; relax_substateT subtype; - if (exp.X_md == IMM_GOT) - subtype = GOT_OFFSET; - else if (exp.X_md == IMM_PLT) - subtype = PLT_OFFSET; + if (exp.X_md != 0) + subtype = get_imm_otype(exp.X_md); else subtype = opcode->inst_offset_type; + output = frag_var (rs_machine_dependent, isize * 2, /* maxm of 2 words. */ isize, /* minm of 1 word. */ @@ -1503,12 +1580,11 @@ md_assemble (char * str) char *opc = NULL; relax_substateT subtype; - if (exp.X_md == IMM_GOT) - subtype = GOT_OFFSET; - else if (exp.X_md == IMM_PLT) - subtype = PLT_OFFSET; - else + if (exp.X_md != 0) + subtype = get_imm_otype(exp.X_md); + else subtype = opcode->inst_offset_type; + output = frag_var (rs_machine_dependent, isize * 2, /* maxm of 2 words. */ isize, /* minm of 1 word. */ @@ -1576,12 +1652,11 @@ md_assemble (char * str) char *opc = NULL; relax_substateT subtype; - if (exp.X_md == IMM_GOT) - subtype = GOT_OFFSET; - else if (exp.X_md == IMM_PLT) - subtype = PLT_OFFSET; - else - subtype = opcode->inst_offset_type; + if (exp.X_md != 0) + subtype = get_imm_otype(exp.X_md); + else + subtype = opcode->inst_offset_type; + output = frag_var (rs_machine_dependent, isize * 2, /* maxm of 2 words. */ isize, /* minm of 1 word. */ @@ -1847,6 +1922,24 @@ md_convert_frag (bfd * abfd ATTRIBUTE_UNUSED, fragP->fr_fix += INST_WORD_SIZE * 2; fragP->fr_var = 0; break; + case TLSGD_OFFSET: + fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, + fragP->fr_offset, FALSE, BFD_RELOC_MICROBLAZE_64_TLSGD); + fragP->fr_fix += INST_WORD_SIZE * 2; + fragP->fr_var = 0; + break; + case TLSLD_OFFSET: + fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, + fragP->fr_offset, FALSE, BFD_RELOC_MICROBLAZE_64_TLSLD); + fragP->fr_fix += INST_WORD_SIZE * 2; + fragP->fr_var = 0; + break; + case TLSDTPREL_OFFSET: + fix_new (fragP, fragP->fr_fix, INST_WORD_SIZE * 2, fragP->fr_symbol, + fragP->fr_offset, FALSE, BFD_RELOC_MICROBLAZE_64_TLSDTPREL); + fragP->fr_fix += INST_WORD_SIZE * 2; + fragP->fr_var = 0; + break; default: abort (); @@ -2028,6 +2121,11 @@ md_apply_fix (fixS * fixP, } break; + case BFD_RELOC_MICROBLAZE_64_TLSDTPREL: + case BFD_RELOC_MICROBLAZE_64_TLSGD: + case BFD_RELOC_MICROBLAZE_64_TLSLD: + S_SET_THREAD_LOCAL (fixP->fx_addsy); + case BFD_RELOC_MICROBLAZE_64_GOTPC: case BFD_RELOC_MICROBLAZE_64_GOT: case BFD_RELOC_MICROBLAZE_64_PLT: @@ -2206,11 +2304,16 @@ md_estimate_size_before_relax (fragS * fragP, case GOT_OFFSET: case PLT_OFFSET: case GOTOFF_OFFSET: + case TLSGD_OFFSET: + case TLSLD_OFFSET: + case TLSTPREL_OFFSET: + case TLSDTPREL_OFFSET: fragP->fr_var = INST_WORD_SIZE*2; break; case DEFINED_RO_SEGMENT: case DEFINED_RW_SEGMENT: case DEFINED_PC_OFFSET: + case TLSDTPMOD_OFFSET: fragP->fr_var = INST_WORD_SIZE; break; default: @@ -2294,6 +2397,13 @@ tc_gen_reloc (asection * section ATTRIBUTE_UNUSED, fixS * fixp) case BFD_RELOC_MICROBLAZE_64_PLT: case BFD_RELOC_MICROBLAZE_64_GOTOFF: case BFD_RELOC_MICROBLAZE_32_GOTOFF: + case BFD_RELOC_MICROBLAZE_64_TLSGD: + case BFD_RELOC_MICROBLAZE_64_TLSLD: + case BFD_RELOC_MICROBLAZE_32_TLSDTPMOD: + case BFD_RELOC_MICROBLAZE_32_TLSDTPREL: + case BFD_RELOC_MICROBLAZE_64_TLSDTPREL: + case BFD_RELOC_MICROBLAZE_64_TLSGOTTPREL: + case BFD_RELOC_MICROBLAZE_64_TLSTPREL: code = fixp->fx_r_type; break; diff --git a/include/ChangeLog b/include/ChangeLog index 571fe74812..16ff7e64d9 100644 --- a/include/ChangeLog +++ b/include/ChangeLog @@ -1,3 +1,7 @@ +2012-12-11 Edgar E. Iglesias <edgar.iglesias@gmail.com> + + * elf/microblaze.h: Add TLS relocs to START_RELOC_NUMBERS + 2012-11-09 Jason Merrill <jason@redhat.com> * demangle.h (enum demangle_component_type): Add diff --git a/include/elf/microblaze.h b/include/elf/microblaze.h index d392231227..c4d98213ac 100644 --- a/include/elf/microblaze.h +++ b/include/elf/microblaze.h @@ -50,6 +50,14 @@ START_RELOC_NUMBERS (elf_microblaze_reloc_type) RELOC_NUMBER (R_MICROBLAZE_GOTOFF_64, 19) /* Offset relative to GOT. */ RELOC_NUMBER (R_MICROBLAZE_GOTOFF_32, 20) /* Offset relative to GOT. */ RELOC_NUMBER (R_MICROBLAZE_COPY, 21) /* Runtime copy. */ + RELOC_NUMBER (R_MICROBLAZE_TLS, 22) /* TLS Reloc */ + RELOC_NUMBER (R_MICROBLAZE_TLSGD, 23) /* TLS General Dynamic */ + RELOC_NUMBER (R_MICROBLAZE_TLSLD, 24) /* TLS Local Dynamic */ + RELOC_NUMBER (R_MICROBLAZE_TLSDTPMOD32, 25) /* TLS Module ID */ + RELOC_NUMBER (R_MICROBLAZE_TLSDTPREL32, 26) /* TLS Offset Within TLS Block */ + RELOC_NUMBER (R_MICROBLAZE_TLSDTPREL64, 27) /* TLS Offset Within TLS Block */ + RELOC_NUMBER (R_MICROBLAZE_TLSGOTTPREL32, 28) /* TLS Offset From Thread Pointer */ + RELOC_NUMBER (R_MICROBLAZE_TLSTPREL32, 29) /* TLS Offset From Thread Pointer */ END_RELOC_NUMBERS (R_MICROBLAZE_max) |