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authorRichard Sandiford <rdsandiford@googlemail.com>2006-08-04 13:13:56 +0000
committerRichard Sandiford <rdsandiford@googlemail.com>2006-08-04 13:13:56 +0000
commit55e6e39790fd27daea0bf1af3b9a7797c735a79f (patch)
treeab971292b183f901480f70778f64119d5dec2b65 /bfd/elf-vxworks.c
parent9b86ba52c41d646787839bf0788ab66df66c9f1a (diff)
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2006-08-02 Richard Sandiford <richard@codesourcery.com> Kazu Hirata <kazu@codesourcery.com> Phil Edwards <phil@codesourcery.com> Nathan Sidwell <nathan@codesourcery.com> * config.bfd (sh-*-vxworks): Use bfd_elf32_shvxworks_vec and bfd_elf32_shlvxworks_vec. * configure.in (bfd_elf32_sh64_vec): Add elf-vxworks.lo. (bfd_elf32_sh64l_vec, bfd_elf32_sh64lin_vec): Likewise. (bfd_elf32_sh64blin_vec, bfd_elf32_sh64lnbsd_vec): Likewise. (bfd_elf32_sh64nbsd_vec, bfd_elf32_sh_vec): Likewise. (bfd_elf32_shblin_vec, bfd_elf32_shl_vec): Likewise. (bfd_elf32_shl_symbian_vec, bfd_elf32_shlin_vec): Likewise. (bfd_elf32_shlnbsd_vec, bfd_elf32_shnbsd_vec): Likewise. (bfd_elf32_shlvxworks_vec, bfd_elf32_shvxworks_vec): New stanzas. * configure: Regenerate. * Makefile.am: Regenerate dependencies. * Makefile.in: Regenerate. * elf-vxworks.c (elf_vxworks_gott_symbol_p): New function. (elf_vxworks_add_symbol_hook): Use it. (elf_vxworks_link_output_symbol_hook): Likewise. Use the hash table entry to check for weak undefined symbols and to obtain the original bfd. (elf_vxworks_emit_relocs): Use target_index instead of this_idx. * elf32-sh-relocs.h: New file, split from elf32-sh.c. (R_SH_DIR32): Use SH_PARTIAL32 for the partial_inplace field, SH_SRC_MASK32 for the src_mask field, and SH_ELF_RELOC for the special_function field. (R_SH_REL32): Use SH_PARTIAL32 and SH_SRC_MASK32 here too. (R_SH_REL32, R_SH_TLS_GD_32, R_SH_TLS_LD_32): Likewise. (R_SH_TLS_LDO_32, R_SH_TLS_IE_32, R_SH_TLS_LE_32): Likewise. (R_SH_TLS_DTPMOD32, R_SH_TLS_DTPOFF32, R_SH_TLS_TPOFF32): Likewise. (R_SH_GOT32, R_SH_PLT32, R_SH_COPY, R_SH_GLOB_DAT): Likewise. (R_SH_JMP_SLOT, R_SH_RELATIVE, R_SH_GOTOFF, R_SH_GOTPC): Likewise. (SH_PARTIAL32, SH_SRC_MASK32, SH_ELF_RELOC): Undefine at end of file. * elf32-sh.c: Include elf32-vxworks.h. (MINUS_ONE): Define. (sh_elf_howto_table): Include elf32-sh-relocs.h with SH_PARTIAL32 set to TRUE, SH_SRC_MASK32 set to 0xffffffff, and SH_ELF_RELOC set to sh_elf_reloc. (sh_vxworks_howto_table): New variable. Include elf32-sh-relocs.h with SH_PARTIAL32 set to FALSE, SH_SRC_MASK32 set to 0, and SH_ELF_RELOC set to bfd_elf_generic_reloc. (vxworks_object_p, get_howto_table): New functions. (sh_elf_reloc_type_lookup): Fix typo. Use get_howto_table. (sh_elf_info_to_howto): Use get_howto_table. (sh_elf_relax_section): Honor the partial_inplace field of the R_SH_DIR32 howto. (sh_elf_relax_delete_bytes): Likewise. (elf_sh_plt_info): New structure. (PLT_ENTRY_SIZE): Replace both definitions with... (ELF_PLT_ENTRY_SIZE): ...this new macro, with separate definitions for INCLUDE_SHMEDIA and !INCLUDE_SHMEDIA. (elf_sh_plt0_entry_be): Update sizes of both definitions accordingly. (elf_sh_plt0_entry_le): Likewise. (elf_sh_plt_entry_be, elf_sh_plt_entry_le): Likewise. (elf_sh_pic_plt_entry_be, elf_sh_pic_plt_entry_le): Likewise. (elf_sh_plts): New structure, with separate definitions for INCLUDE_SHMEDIA and !INCLUDE_SHMEDIA. (elf_sh_plt0_entry): Delete both definitions. (elf_sh_plt_entry, elf_sh_pic_plt_entry): Likewise. (elf_sh_sizeof_plt, elf_sh_plt_plt0_offset): Likewise. (elf_sh_plt_temp_offset, elf_sh_plt_symbol_offset): Likewise. (elf_sh_plt_reloc_offset): Likewise. (movi_shori_putval): Delete in favor of... (install_plt_field): ...this new function, with separate definitions for INCLUDE_SHMEDIA and !INCLUDE_SHMEDIA. (get_plt_info): New function, with separate definitions for INCLUDE_SHMEDIA and !INCLUDE_SHMEDIA. (elf_sh_plt0_linker_offset, elf_sh_plt0_gotid_offset): Delete. (VXWORKS_PLT_HEADER_SIZE, VXWORKS_PLT_ENTRY_SIZE): New macros. (vxworks_sh_plt0_entry_be, vxworks_sh_plt0_entry_le): New constants. (vxworks_sh_plt_entry_be, vxworks_sh_plt_entry_le): Likewise. (vxworks_sh_pic_plt_entry_be, vxworks_sh_pic_plt_entry_le): Likewise. (get_plt_index, get_plt_offset): New functions. (elf_sh_link_hash_table): Add srelplt2, plt_info and vxworks_p fields. (sh_elf_link_hash_table_create): Initialize them. (sh_elf_create_dynamic_sections): Call elf_vxworks_create_dynamic_sections for VxWorks. (allocate_dynrelocs): Use htab->plt_info to get the size of PLT entries. Allocate relocation entries in .rela.plt.unloaded if generating a VxWorks executable. (sh_elf_always_size_sections): New function. (sh_elf_size_dynamic_sections): Extend .rela.plt handling to .rela.plt.unloaded. (sh_elf_relocate_section): Use get_howto_table. Honor partial_inplace when calculating the addend for dynamic relocations. Use get_plt_index. (sh_elf_finish_dynamic_symbol): Use get_plt_index, install_plt_field and htab->plt_info. Fill in the bra .plt offset for VxWorks executables. Populate .rela.plt.unloaded. Do not make _GLOBAL_OFFSET_TABLE_ absolute on VxWorks. (sh_elf_finish_dynamic_sections): Use install_plt_field and htab->plt_info. Handle cases where there is no special PLT header. Populate the first relocation in .rela.plt.unloaded and fix up the remaining entries. (sh_elf_plt_sym_val): Use get_plt_info. (elf_backend_always_size_sections): Define. (TARGET_BIG_SYM, TARGET_BIG_NAME): Override for VxWorks. (TARGET_LITTLE_SYM, TARGET_BIG_SYM): Likewise. (elf32_bed, elf_backend_want_plt_sym): Likewise. (elf_symbol_leading_char, elf_backend_want_got_underscore): Likewise. (elf_backend_grok_prstatus, elf_backend_grok_psinfo): Likewise. (elf_backend_add_symbol_hook): Likewise. (elf_backend_link_output_symbol_hook): Likewise. (elf_backend_emit_relocs): Likewise. (elf_backend_final_write_processing): Likewise. (ELF_MAXPAGESIZE, ELF_COMMONPAGESIZE): Likewise. * targets.c (bfd_elf32_shlvxworks_vec): Declare. (bfd_elf32_shvxworks_vec): Likewise. (_bfd_target_vector): Include bfd_elf32_shlvxworks_vec and bfd_elf32_shvxworks_vec. gas/ * config/tc-sh.c (apply_full_field_fix): New function. (md_apply_fix): Use it instead of md_number_to_chars. Do not fill in fx_addnumber for BFD_RELOC_32_PLT_PCREL. (tc_gen_reloc): Use fx_addnumber rather than 0 as the default case. * config/tc-sh.h (TARGET_FORMAT): Override for TE_VXWORKS. ld/ 2006-08-02 Richard Sandiford <richard@codesourcery.com> Kazu Hirata <kazu@codesourcery.com> Phil Edwards <phil@codesourcery.com> * Makefile.am (ALL_EMULATIONS): Add eshelf_vxworks.o and eshlelf_vxworks.o. (eshelf_vxworks.c, eshlelf_vxworks.c): New rules. * Makefile.in: Regenerate. * configure.tgt (sh-*-vxworks): Use shelf_vxworks and shlelf_vxworks. * emulparams/shelf_vxworks.sh: New file. * emulparams/shlelf_vxworks.sh: Likewise. * emulparams/vxworks.sh (FINI): Prefix _etext with ${SYMPREFIX}. (OTHER_END_SYMBOLS): Likewise _ehdr. (DATA_END_SYMBOLS): Likewise _edata. * emultempl/vxworks.em (vxworks_after_open): Check whether output_bfd is indeed an ELF file before dealing with --force-dynamic. ld/testsuite/ * ld-sh/rd-sh.exp: Treat vxworks1-static.d specially. * ld-sh/sh-vxworks.exp: New file. * ld-sh/sh.exp: Extend sh-linux SIZEOF_HEADERS handling to sh-*-vxworks. * ld-sh/vxworks1-le.dd, ld-sh/vxworks1-lib-le.dd, * ld-sh/vxworks1-lib.dd, ld-sh/vxworks1-lib.nd, * ld-sh/vxworks1-lib.rd, ld-sh/vxworks1-lib.s, * ld-sh/vxworks1-static.d, ld-sh/vxworks1.dd, * ld-sh/vxworks1.ld, ld-sh/vxworks1.rd, ld-sh/vxworks1.s, * ld-sh/vxworks2-static.sd, ld-sh/vxworks2.s, * ld-sh/vxworks2.sd, ld-sh/vxworks3-le.dd, * ld-sh/vxworks3-lib-le.dd, ld-sh/vxworks3-lib.dd, * ld-sh/vxworks3-lib.s, ld-sh/vxworks3.dd, ld-sh/vxworks3.s, * ld-sh/vxworks4.d, ld-sh/vxworks4a.s, ld-sh/vxworks4b.s, * ld-sh/reloc1.s, ld-sh/reloc1.d: New tests.
Diffstat (limited to 'bfd/elf-vxworks.c')
-rw-r--r--bfd/elf-vxworks.c39
1 files changed, 26 insertions, 13 deletions
diff --git a/bfd/elf-vxworks.c b/bfd/elf-vxworks.c
index 90e620a..5b673f2 100644
--- a/bfd/elf-vxworks.c
+++ b/bfd/elf-vxworks.c
@@ -26,9 +26,28 @@
#include "elf-bfd.h"
#include "elf-vxworks.h"
+/* Return true if symbol NAME, as defined by ABFD, is one of the special
+ __GOTT_BASE__ or __GOTT_INDEX__ symbols. */
+
+static bfd_boolean
+elf_vxworks_gott_symbol_p (bfd *abfd, const char *name)
+{
+ char leading;
+
+ leading = bfd_get_symbol_leading_char (abfd);
+ if (leading)
+ {
+ if (*name != leading)
+ return FALSE;
+ name++;
+ }
+ return (strcmp (name, "__GOTT_BASE__") == 0
+ || strcmp (name, "__GOTT_INDEX__") == 0);
+}
+
/* Tweak magic VxWorks symbols as they are loaded. */
bfd_boolean
-elf_vxworks_add_symbol_hook (bfd *abfd ATTRIBUTE_UNUSED,
+elf_vxworks_add_symbol_hook (bfd *abfd,
struct bfd_link_info *info,
Elf_Internal_Sym *sym,
const char **namep,
@@ -45,8 +64,7 @@ elf_vxworks_add_symbol_hook (bfd *abfd ATTRIBUTE_UNUSED,
This transformation will be undone in
elf_i386_vxworks_link_output_symbol_hook. */
if ((info->shared || abfd->flags & DYNAMIC)
- && (strcmp (*namep, "__GOTT_INDEX__") == 0
- || strcmp (*namep, "__GOTT_BASE__") == 0))
+ && elf_vxworks_gott_symbol_p (abfd, *namep))
{
sym->st_info = ELF_ST_INFO (STB_WEAK, ELF_ST_TYPE (sym->st_info));
*flagsp |= BSF_WEAK;
@@ -114,16 +132,12 @@ elf_vxworks_link_output_symbol_hook (struct bfd_link_info *info
const char *name,
Elf_Internal_Sym *sym,
asection *input_sec ATTRIBUTE_UNUSED,
- struct elf_link_hash_entry *h
- ATTRIBUTE_UNUSED)
+ struct elf_link_hash_entry *h)
{
- /* Ignore the first dummy symbol. */
- if (!name)
- return TRUE;
-
/* Reverse the effects of the hack in elf_vxworks_add_symbol_hook. */
- if (strcmp (name, "__GOTT_INDEX__") == 0
- || strcmp (name, "__GOTT_BASE__") == 0)
+ if (h
+ && h->root.type == bfd_link_hash_undefweak
+ && elf_vxworks_gott_symbol_p (h->root.u.undef.abfd, name))
sym->st_info = ELF_ST_INFO (STB_GLOBAL, ELF_ST_TYPE (sym->st_info));
return TRUE;
@@ -171,8 +185,7 @@ elf_vxworks_emit_relocs (bfd *output_bfd,
for (j = 0; j < bed->s->int_rels_per_ext_rel; j++)
{
asection *sec = (*rel_hash)->root.u.def.section;
- int this_idx =
- elf_section_data (sec->output_section)->this_idx;
+ int this_idx = sec->output_section->target_index;
irela[j].r_info = ELF32_R_INFO (this_idx,
ELF32_R_TYPE (irela[j].r_info));