From 9ab066b4cf765f89fa238324bedb98825bec0bc5 Mon Sep 17 00:00:00 2001 From: Richard Sandiford Date: Mon, 11 Feb 2013 18:17:57 +0000 Subject: [PATCH] bfd/ * elfxx-mips.c (mips_got_tls_type): New enum. (mips_got_entry): Add tls_initialized. (mips_elf_got_entry_hash, mips_elf_got_entry_eq, mips_tls_got_relocs) (mips_elf_count_got_entry, mips_elf_initialize_tls_index): Remove GOT_TLS_TYPE masks. (mips_elf_reloc_tls_type, mips_tls_got_entries) (mips_elf_record_global_got_symbol, mips_elf_initialize_tls_index) (_bfd_mips_elf_finish_dynamic_symbol): Use GOT_TLS_NONE rather than GOT_NORMAL. (mips_elf_initialize_tls_slots): Replace got_offset and tls_type_p arguments with a GOT entry. Remove GOT_TLS_TYPE masks. Use tls_initialized rather than GOT_TLS_DONE. (mips_tls_got_index): Delete. (mips_elf_local_got_index, mips_elf_global_got_index): Use mips_elf_initialize_tls_slots rather than mips_tls_got_index. (mips_elf_record_got_entry): Initialize tls_initialized. --- bfd/ChangeLog | 19 ++++++++++ bfd/elfxx-mips.c | 94 ++++++++++++++++++++---------------------------- 2 files changed, 58 insertions(+), 55 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 510301938a1..d3b2d8a1298 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,22 @@ +2013-02-11 Richard Sandiford + + * elfxx-mips.c (mips_got_tls_type): New enum. + (mips_got_entry): Add tls_initialized. + (mips_elf_got_entry_hash, mips_elf_got_entry_eq, mips_tls_got_relocs) + (mips_elf_count_got_entry, mips_elf_initialize_tls_index): Remove + GOT_TLS_TYPE masks. + (mips_elf_reloc_tls_type, mips_tls_got_entries) + (mips_elf_record_global_got_symbol, mips_elf_initialize_tls_index) + (_bfd_mips_elf_finish_dynamic_symbol): Use GOT_TLS_NONE rather + than GOT_NORMAL. + (mips_elf_initialize_tls_slots): Replace got_offset and tls_type_p + arguments with a GOT entry. Remove GOT_TLS_TYPE masks. Use + tls_initialized rather than GOT_TLS_DONE. + (mips_tls_got_index): Delete. + (mips_elf_local_got_index, mips_elf_global_got_index): Use + mips_elf_initialize_tls_slots rather than mips_tls_got_index. + (mips_elf_record_got_entry): Initialize tls_initialized. + 2013-02-11 Richard Sandiford * elfxx-mips.c (mips_got_entry): Remove tls_ldm_offset. diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c index 102e57fa427..e4ba822849a 100644 --- a/bfd/elfxx-mips.c +++ b/bfd/elfxx-mips.c @@ -47,6 +47,14 @@ #include "hashtab.h" +/* Types of TLS GOT entry. */ +enum mips_got_tls_type { + GOT_TLS_NONE, + GOT_TLS_GD, + GOT_TLS_LDM, + GOT_TLS_IE +}; + /* This structure is used to hold information about one GOT entry. There are four types of entry: @@ -86,17 +94,14 @@ struct mips_got_entry struct mips_elf_link_hash_entry *h; } d; - /* The TLS type of this GOT entry: GOT_NORMAL, GOT_TLS_IE, GOT_TLS_GD - or GOT_TLS_LDM. An LDM GOT entry will be a local symbol entry with - r_symndx == 0. */ -#define GOT_NORMAL 0 -#define GOT_TLS_GD 1 -#define GOT_TLS_LDM 2 -#define GOT_TLS_IE 4 -#define GOT_TLS_TYPE 7 -#define GOT_TLS_DONE 0x80 + /* The TLS type of this GOT entry. An LDM GOT entry will be a local + symbol entry with r_symndx == 0. */ unsigned char tls_type; + /* True if we have filled in the GOT contents for a TLS entry, + and created the associated relocations. */ + unsigned char tls_initialized; + /* The offset from the beginning of the .got section to the entry corresponding to this symbol+addend. If it's a global symbol whose offset is yet to be decided, it's going to be -1. */ @@ -2742,8 +2747,8 @@ mips_elf_got_entry_hash (const void *entry_) const struct mips_got_entry *entry = (struct mips_got_entry *)entry_; return (entry->symndx - + (((entry->tls_type & GOT_TLS_TYPE) == GOT_TLS_LDM) << 18) - + ((entry->tls_type & GOT_TLS_TYPE) == GOT_TLS_LDM ? 0 + + ((entry->tls_type == GOT_TLS_LDM) << 18) + + (entry->tls_type == GOT_TLS_LDM ? 0 : !entry->abfd ? mips_elf_hash_bfd_vma (entry->d.address) : entry->symndx >= 0 ? (entry->abfd->id + mips_elf_hash_bfd_vma (entry->d.addend)) @@ -2757,8 +2762,8 @@ mips_elf_got_entry_eq (const void *entry1, const void *entry2) const struct mips_got_entry *e2 = (struct mips_got_entry *)entry2; return (e1->symndx == e2->symndx - && (e1->tls_type & GOT_TLS_TYPE) == (e2->tls_type & GOT_TLS_TYPE) - && ((e1->tls_type & GOT_TLS_TYPE) == GOT_TLS_LDM ? TRUE + && e1->tls_type == e2->tls_type + && (e1->tls_type == GOT_TLS_LDM ? TRUE : !e1->abfd ? !e2->abfd && e1->d.address == e2->d.address : e1->symndx >= 0 ? (e1->abfd == e2->abfd && e1->d.addend == e2->d.addend) @@ -2889,7 +2894,7 @@ mips_elf_reloc_tls_type (unsigned int r_type) if (tls_gottprel_reloc_p (r_type)) return GOT_TLS_IE; - return GOT_NORMAL; + return GOT_TLS_NONE; } /* Return the number of GOT slots needed for GOT TLS type TYPE. */ @@ -2906,7 +2911,7 @@ mips_tls_got_entries (unsigned int type) case GOT_TLS_IE: return 1; - case GOT_NORMAL: + case GOT_TLS_NONE: return 0; } abort (); @@ -2937,7 +2942,7 @@ mips_tls_got_relocs (struct bfd_link_info *info, unsigned char tls_type, if (!need_relocs) return 0; - switch (tls_type & GOT_TLS_TYPE) + switch (tls_type) { case GOT_TLS_GD: return indx != 0 ? 2 : 1; @@ -2961,13 +2966,10 @@ mips_elf_count_got_entry (struct bfd_link_info *info, struct mips_got_info *g, struct mips_got_entry *entry) { - unsigned char tls_type; - - tls_type = entry->tls_type & GOT_TLS_TYPE; - if (tls_type) + if (entry->tls_type) { - g->tls_gotno += mips_tls_got_entries (tls_type); - g->relocs += mips_tls_got_relocs (info, tls_type, + g->tls_gotno += mips_tls_got_entries (entry->tls_type); + g->relocs += mips_tls_got_relocs (info, entry->tls_type, entry->symndx < 0 ? &entry->d.h->root : NULL); } @@ -3028,16 +3030,15 @@ mips_elf_output_dynamic_relocation (bfd *output_bfd, /* Initialize a set of TLS GOT entries for one symbol. */ static void -mips_elf_initialize_tls_slots (bfd *abfd, bfd_vma got_offset, - unsigned char *tls_type_p, - struct bfd_link_info *info, +mips_elf_initialize_tls_slots (bfd *abfd, struct bfd_link_info *info, + struct mips_got_entry *entry, struct mips_elf_link_hash_entry *h, bfd_vma value) { struct mips_elf_link_hash_table *htab; int indx; asection *sreloc, *sgot; - bfd_vma got_offset2; + bfd_vma got_offset, got_offset2; bfd_boolean need_relocs = FALSE; htab = mips_elf_hash_table (info); @@ -3056,7 +3057,7 @@ mips_elf_initialize_tls_slots (bfd *abfd, bfd_vma got_offset, indx = h->root.dynindx; } - if (*tls_type_p & GOT_TLS_DONE) + if (entry->tls_initialized) return; if ((info->shared || indx != 0) @@ -3073,8 +3074,9 @@ mips_elf_initialize_tls_slots (bfd *abfd, bfd_vma got_offset, /* Emit necessary relocations. */ sreloc = mips_elf_rel_dyn_section (info, FALSE); + got_offset = entry->gotidx; - switch (*tls_type_p & GOT_TLS_TYPE) + switch (entry->tls_type) { case GOT_TLS_GD: /* General Dynamic. */ @@ -3147,21 +3149,7 @@ mips_elf_initialize_tls_slots (bfd *abfd, bfd_vma got_offset, abort (); } - *tls_type_p |= GOT_TLS_DONE; -} - -/* Return the GOT index to use for a relocation against H using the - TLS model in *TLS_TYPE. The GOT entries for this symbol/model - combination start at GOT_INDEX into ABFD's GOT. This function - initializes the GOT entries and corresponding relocations. */ - -static bfd_vma -mips_tls_got_index (bfd *abfd, bfd_vma got_index, unsigned char *tls_type, - struct bfd_link_info *info, - struct mips_elf_link_hash_entry *h, bfd_vma symbol) -{ - mips_elf_initialize_tls_slots (abfd, got_index, tls_type, info, h, symbol); - return got_index; + entry->tls_initialized = TRUE; } /* Return the offset from _GLOBAL_OFFSET_TABLE_ of the .got.plt entry @@ -3222,10 +3210,8 @@ mips_elf_local_got_index (bfd *abfd, bfd *ibfd, struct bfd_link_info *info, return MINUS_ONE; if (entry->tls_type) - return mips_tls_got_index (abfd, entry->gotidx, &entry->tls_type, - info, h, value); - else - return entry->gotidx; + mips_elf_initialize_tls_slots (abfd, info, entry, h, value); + return entry->gotidx; } /* Return the GOT index of global symbol H in the primary GOT. */ @@ -3301,8 +3287,7 @@ mips_elf_global_got_index (bfd *obfd, struct bfd_link_info *info, bfd *ibfd, + h->root.u.def.section->output_offset + h->root.u.def.section->output_section->vma); - return mips_tls_got_index (obfd, gotidx, &entry->tls_type, - info, lookup.d.h, value); + mips_elf_initialize_tls_slots (obfd, info, entry, lookup.d.h, value); } return gotidx; } @@ -3632,6 +3617,7 @@ mips_elf_record_got_entry (struct bfd_link_info *info, bfd *abfd, if (!entry) return FALSE; + lookup->tls_initialized = FALSE; lookup->gotidx = -1; *entry = *lookup; *loc = entry; @@ -3688,7 +3674,7 @@ mips_elf_record_global_got_symbol (struct elf_link_hash_entry *h, } tls_type = mips_elf_reloc_tls_type (r_type); - if (tls_type == GOT_NORMAL && hmips->global_got_area > GGA_NORMAL) + if (tls_type == GOT_TLS_NONE && hmips->global_got_area > GGA_NORMAL) hmips->global_got_area = GGA_NORMAL; entry.abfd = abfd; @@ -4239,12 +4225,10 @@ mips_elf_initialize_tls_index (void **entryp, void *data) { struct mips_got_entry *entry; struct mips_elf_traverse_got_arg *arg; - unsigned char tls_type; /* We're only interested in TLS symbols. */ entry = (struct mips_got_entry *) *entryp; - tls_type = (entry->tls_type & GOT_TLS_TYPE); - if (tls_type == 0) + if (entry->tls_type == GOT_TLS_NONE) return 1; arg = (struct mips_elf_traverse_got_arg *) data; @@ -4255,7 +4239,7 @@ mips_elf_initialize_tls_index (void **entryp, void *data) } /* Account for the entries we've just allocated. */ - arg->g->tls_assigned_gotno += mips_tls_got_entries (tls_type); + arg->g->tls_assigned_gotno += mips_tls_got_entries (entry->tls_type); return 1; } @@ -9854,7 +9838,7 @@ _bfd_mips_elf_finish_dynamic_symbol (bfd *output_bfd, e.abfd = output_bfd; e.symndx = -1; e.d.h = hmips; - e.tls_type = 0; + e.tls_type = GOT_TLS_NONE; for (g = g->next; g->next != gg; g = g->next) { -- 2.30.2