Fix PR ld/22263 on SPARC.
This is -fpie -pie generating dynamic relocations in the text section, simply because no TLS transitions are applied in PIE mode. The meat of the patch is to turn calls to bfd_link_pic (info) in TLS-related code into !bfd_link_executable (info) and there are quite a lot of them... bfd/ * elfxx-sparc.c (sparc_elf_tls_transition): Turn call to bfd_link_pic into call to !bfd_link_executable and tidy up. (_bfd_sparc_elf_check_relocs): Fix formatting and tidy up. <R_SPARC_TLS_LE_HIX22>: Turn call to bfd_link_pic into call to !bfd_link_executable. <R_SPARC_TLS_IE_HI22>: Likewise. <GOT relocations>: Remove useless code, tidy and merge blocks. <R_SPARC_TLS_GD_CALL>: Turn call to bfd_link_pic into call to !bfd_link_executable. <R_SPARC_WPLT30>: Tidy up. (_bfd_sparc_elf_gc_mark_hook): Turn call to bfd_link_pic into call to !bfd_link_executable. (allocate_dynrelocs): Likewise. (_bfd_sparc_elf_relocate_section): Fix formatting and tidy up. <R_SPARC_TLS_GD_HI22>: Merge into... <R_SPARC_TLS_GD_LO10>: ...this. Adjust 4th argument in call to sparc_elf_tls_transition and remove redundant code. <R_SPARC_TLS_LDM_HI22>: Turn call to bfd_link_pic into call to !bfd_link_executable. <R_SPARC_TLS_LDO_HIX22>: Likewise. <R_SPARC_TLS_LE_HIX22>: Likewise. Tidy up. <R_SPARC_TLS_LDM_CALL>: Likewise. <R_SPARC_TLS_GD_CALL>: Likewise. Tidy up. <R_SPARC_TLS_GD_ADD>: Likewise. <R_SPARC_TLS_LDM_ADD>: Likewise. <R_SPARC_TLS_LDO_ADD>: Likewise. <R_SPARC_TLS_IE_LD>: Likewise. ld/ * testsuite/ld-elf/tls.exp (AFLAGS_PIC): Define on SPARC. (pr22263-1): Pass AFLAGS_PIC to the assembler. * testsuite/ld-sparc/tlspie32.s: Add test for other 3 transitions. * testsuite/ld-sparc/tlspie32.dd: Adjust to above. * testsuite/ld-sparc/tlspie64.s: Add test for other 3 transitions. * testsuite/ld-sparc/tlspie64.dd: Adjust to above.
This commit is contained in:
Eric Botcazou
parent
bca65a2394
commit
c20c30f615
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@ -1,3 +1,34 @@
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2018-02-06 Eric Botcazou <ebotcazou@adacore.com>
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PR ld/22263
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* elfxx-sparc.c (sparc_elf_tls_transition): Turn call to bfd_link_pic
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into call to !bfd_link_executable and tidy up.
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(_bfd_sparc_elf_check_relocs): Fix formatting and tidy up.
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<R_SPARC_TLS_LE_HIX22>: Turn call to bfd_link_pic into call to
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!bfd_link_executable.
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<R_SPARC_TLS_IE_HI22>: Likewise.
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<GOT relocations>: Remove useless code, tidy and merge related blocks.
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<R_SPARC_TLS_GD_CALL>: Turn call to bfd_link_pic into call to
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!bfd_link_executable.
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<R_SPARC_WPLT30>: Tidy up.
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(_bfd_sparc_elf_gc_mark_hook): Turn call to bfd_link_pic into call to
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!bfd_link_executable.
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(allocate_dynrelocs): Likewise.
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(_bfd_sparc_elf_relocate_section): Fix formatting and tidy up.
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<R_SPARC_TLS_GD_HI22>: Merge into...
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<R_SPARC_TLS_GD_LO10>: ...this. Adjust 4th argument in call to
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sparc_elf_tls_transition and remove redundant code.
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<R_SPARC_TLS_LDM_HI22>: Turn call to bfd_link_pic into call to
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!bfd_link_executable.
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<R_SPARC_TLS_LDO_HIX22>: Likewise.
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<R_SPARC_TLS_LE_HIX22>: Likewise. Tidy up.
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<R_SPARC_TLS_LDM_CALL>: Likewise.
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<R_SPARC_TLS_GD_CALL>: Likewise. Tidy up.
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<R_SPARC_TLS_GD_ADD>: Likewise.
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<R_SPARC_TLS_LDM_ADD>: Likewise.
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<R_SPARC_TLS_LDO_ADD>: Likewise.
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<R_SPARC_TLS_IE_LD>: Likewise.
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2018-02-06 Miloš Stojanović <milos.stojanovic@rt-rk.com>
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PR 22789
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@ -1331,33 +1331,25 @@ sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
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if (! ABI_64_P (abfd)
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&& r_type == R_SPARC_TLS_GD_HI22
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&& ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
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r_type = R_SPARC_REV32;
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return R_SPARC_REV32;
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if (bfd_link_pic (info))
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if (!bfd_link_executable (info))
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return r_type;
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switch (r_type)
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{
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case R_SPARC_TLS_GD_HI22:
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if (is_local)
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return R_SPARC_TLS_LE_HIX22;
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return R_SPARC_TLS_IE_HI22;
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return is_local ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_IE_HI22;
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case R_SPARC_TLS_GD_LO10:
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if (is_local)
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return R_SPARC_TLS_LE_LOX10;
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return R_SPARC_TLS_IE_LO10;
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case R_SPARC_TLS_IE_HI22:
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if (is_local)
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return R_SPARC_TLS_LE_HIX22;
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return r_type;
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case R_SPARC_TLS_IE_LO10:
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if (is_local)
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return R_SPARC_TLS_LE_LOX10;
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return r_type;
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return is_local ? R_SPARC_TLS_LE_LOX10 : R_SPARC_TLS_IE_LO10;
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case R_SPARC_TLS_LDM_HI22:
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return R_SPARC_TLS_LE_HIX22;
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case R_SPARC_TLS_LDM_LO10:
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return R_SPARC_TLS_LE_LOX10;
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case R_SPARC_TLS_IE_HI22:
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return is_local ? R_SPARC_TLS_LE_HIX22 : r_type;
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case R_SPARC_TLS_IE_LO10:
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return is_local ? R_SPARC_TLS_LE_LOX10 : r_type;
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}
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return r_type;
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@ -1425,16 +1417,14 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
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if (r_symndx < symtab_hdr->sh_info)
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{
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/* A local symbol. */
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isym = bfd_sym_from_r_symndx (&htab->sym_cache,
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abfd, r_symndx);
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isym = bfd_sym_from_r_symndx (&htab->sym_cache, abfd, r_symndx);
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if (isym == NULL)
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return FALSE;
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/* Check relocation against local STT_GNU_IFUNC symbol. */
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if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
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{
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h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
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TRUE);
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h = elf_sparc_get_local_sym_hash (htab, abfd, rel, TRUE);
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if (h == NULL)
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return FALSE;
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@ -1456,13 +1446,10 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
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h = (struct elf_link_hash_entry *) h->root.u.i.link;
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}
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if (h && h->type == STT_GNU_IFUNC)
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if (h && h->type == STT_GNU_IFUNC && h->def_regular)
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{
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if (h->def_regular)
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{
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h->ref_regular = 1;
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h->plt.refcount += 1;
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}
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h->ref_regular = 1;
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h->plt.refcount += 1;
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}
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/* Compatibility with old R_SPARC_REV32 reloc conflicting
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@ -1505,13 +1492,13 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
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case R_SPARC_TLS_LE_HIX22:
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case R_SPARC_TLS_LE_LOX10:
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if (bfd_link_pic (info))
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if (!bfd_link_executable (info))
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goto r_sparc_plt32;
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break;
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case R_SPARC_TLS_IE_HI22:
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case R_SPARC_TLS_IE_LO10:
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if (bfd_link_pic (info))
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if (!bfd_link_executable (info))
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info->flags |= DF_STATIC_TLS;
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/* Fall through */
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@ -1530,14 +1517,6 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
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switch (r_type)
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{
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default:
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case R_SPARC_GOT10:
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case R_SPARC_GOT13:
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case R_SPARC_GOT22:
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case R_SPARC_GOTDATA_OP_HIX22:
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case R_SPARC_GOTDATA_OP_LOX10:
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tls_type = GOT_NORMAL;
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break;
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case R_SPARC_TLS_GD_HI22:
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case R_SPARC_TLS_GD_LO10:
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tls_type = GOT_TLS_GD;
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@ -1546,6 +1525,9 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
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case R_SPARC_TLS_IE_LO10:
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tls_type = GOT_TLS_IE;
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break;
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default:
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tls_type = GOT_NORMAL;
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break;
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}
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if (h != NULL)
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@ -1573,26 +1555,23 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
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_bfd_sparc_elf_local_got_tls_type (abfd)
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= (char *) (local_got_refcounts + symtab_hdr->sh_info);
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}
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switch (r_type)
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{
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case R_SPARC_GOTDATA_OP_HIX22:
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case R_SPARC_GOTDATA_OP_LOX10:
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break;
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default:
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local_got_refcounts[r_symndx] += 1;
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break;
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}
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if (r_type != R_SPARC_GOTDATA_OP_HIX22
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&& r_type != R_SPARC_GOTDATA_OP_LOX10)
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local_got_refcounts[r_symndx] += 1;
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old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
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}
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/* If a TLS symbol is accessed using IE at least once,
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there is no point to use dynamic model for it. */
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if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
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&& (old_tls_type != GOT_TLS_GD
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|| tls_type != GOT_TLS_IE))
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/* If a TLS symbol is accessed using IE at least once, there is no point
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in using the dynamic model for it. */
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if (old_tls_type != tls_type)
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{
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if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
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if (old_tls_type == GOT_UNKNOWN)
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;
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else if (old_tls_type == GOT_TLS_GD && tls_type == GOT_TLS_IE)
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;
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else if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
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tls_type = old_tls_type;
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else
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{
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@ -1602,10 +1581,7 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
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abfd, h ? h->root.root.string : "<local>");
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return FALSE;
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}
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}
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if (old_tls_type != tls_type)
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{
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if (h != NULL)
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_bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
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else
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@ -1613,11 +1589,9 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
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}
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}
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if (htab->elf.sgot == NULL)
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{
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if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
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return FALSE;
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}
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if (!htab->elf.sgot
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&& !_bfd_elf_create_got_section (htab->elf.dynobj, info))
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return FALSE;
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if (eh != NULL)
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eh->has_got_reloc = 1;
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@ -1625,28 +1599,25 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
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case R_SPARC_TLS_GD_CALL:
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case R_SPARC_TLS_LDM_CALL:
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if (bfd_link_pic (info))
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{
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/* These are basically R_SPARC_TLS_WPLT30 relocs against
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__tls_get_addr. */
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h = (struct elf_link_hash_entry *)
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bfd_link_hash_lookup (info->hash, "__tls_get_addr", TRUE,
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FALSE, TRUE);
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}
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else
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if (bfd_link_executable (info))
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break;
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/* Essentially R_SPARC_WPLT30 relocs against __tls_get_addr. */
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h = (struct elf_link_hash_entry *)
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bfd_link_hash_lookup (info->hash, "__tls_get_addr", TRUE,
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FALSE, TRUE);
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/* Fall through */
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case R_SPARC_PLT32:
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case R_SPARC_WPLT30:
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case R_SPARC_PLT32:
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case R_SPARC_PLT64:
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case R_SPARC_HIPLT22:
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case R_SPARC_LOPLT10:
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case R_SPARC_PCPLT32:
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case R_SPARC_PCPLT22:
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case R_SPARC_PCPLT10:
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case R_SPARC_PLT64:
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/* This symbol requires a procedure linkage table entry. We
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actually build the entry in adjust_dynamic_symbol,
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/* This symbol requires a procedure linkage table entry.
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We actually build the entry in adjust_dynamic_symbol,
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because this might be a case of linking PIC code without
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linking in any dynamic objects, in which case we don't
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need to generate a procedure linkage table after all. */
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@ -1659,7 +1630,7 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
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reloc for a local symbol if you assemble a call from
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one section to another when using -K pic. We treat
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it as WDISP30. */
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if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
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if (r_type == R_SPARC_PLT32)
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goto r_sparc_plt32;
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break;
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}
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@ -1675,14 +1646,9 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
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h->needs_plt = 1;
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{
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int this_r_type;
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if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
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goto r_sparc_plt32;
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this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
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if (this_r_type == R_SPARC_PLT32
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|| this_r_type == R_SPARC_PLT64)
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goto r_sparc_plt32;
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}
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h->plt.refcount += 1;
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eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
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@ -1886,9 +1852,7 @@ _bfd_sparc_elf_gc_mark_hook (asection *sec,
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return NULL;
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}
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/* FIXME: The test here, in check_relocs and in relocate_section
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dealing with TLS optimization, ought to be !bfd_link_executable (info). */
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if (bfd_link_pic (info))
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if (!bfd_link_executable (info))
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{
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switch (SPARC_ELF_R_TYPE (rel->r_info))
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{
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@ -2227,7 +2191,7 @@ allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
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/* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
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make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
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if (h->got.refcount > 0
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&& !bfd_link_pic (info)
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&& bfd_link_executable (info)
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&& h->dynindx == -1
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&& _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
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h->got.offset = (bfd_vma) -1;
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@ -2963,8 +2927,8 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
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bfd_set_error (bfd_error_bad_value);
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return FALSE;
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}
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howto = _bfd_sparc_elf_howto_table + r_type;
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howto = _bfd_sparc_elf_howto_table + r_type;
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r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
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h = NULL;
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sym = NULL;
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@ -3131,8 +3095,7 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
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}
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eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
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resolved_to_zero = (eh != NULL
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&& UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh));
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resolved_to_zero = eh && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
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switch (r_type)
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{
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@ -3378,8 +3341,7 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
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case R_SPARC_H34:
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case R_SPARC_UA64:
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r_sparc_plt32:
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if ((input_section->flags & SEC_ALLOC) == 0
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|| is_vxworks_tls)
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if ((input_section->flags & SEC_ALLOC) == 0 || is_vxworks_tls)
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break;
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/* Copy dynamic function pointer relocations. Don't generate
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@ -3551,40 +3513,19 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
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break;
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case R_SPARC_TLS_GD_HI22:
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if (! ABI_64_P (input_bfd)
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&& ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
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{
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/* R_SPARC_REV32 used the same reloc number as
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R_SPARC_TLS_GD_HI22. */
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r_type = R_SPARC_REV32;
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break;
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}
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/* Fall through */
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case R_SPARC_TLS_GD_LO10:
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case R_SPARC_TLS_IE_HI22:
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case R_SPARC_TLS_IE_LO10:
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r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
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tls_type = GOT_UNKNOWN;
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if (h == NULL && local_got_offsets)
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r_type = sparc_elf_tls_transition (info, input_bfd, r_type,
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h == NULL || h->dynindx == -1);
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||||
if (r_type == R_SPARC_REV32)
|
||||
break;
|
||||
if (h != NULL)
|
||||
tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
|
||||
else if (local_got_offsets)
|
||||
tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
|
||||
else if (h != NULL)
|
||||
{
|
||||
tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
|
||||
if (!bfd_link_pic (info)
|
||||
&& h->dynindx == -1
|
||||
&& tls_type == GOT_TLS_IE)
|
||||
switch (SPARC_ELF_R_TYPE (rel->r_info))
|
||||
{
|
||||
case R_SPARC_TLS_GD_HI22:
|
||||
case R_SPARC_TLS_IE_HI22:
|
||||
r_type = R_SPARC_TLS_LE_HIX22;
|
||||
break;
|
||||
default:
|
||||
r_type = R_SPARC_TLS_LE_LOX10;
|
||||
break;
|
||||
}
|
||||
}
|
||||
else
|
||||
tls_type = GOT_UNKNOWN;
|
||||
if (tls_type == GOT_TLS_IE)
|
||||
switch (r_type)
|
||||
{
|
||||
|
|
@ -3695,7 +3636,8 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
|
|||
|
||||
case R_SPARC_TLS_LDM_HI22:
|
||||
case R_SPARC_TLS_LDM_LO10:
|
||||
if (! bfd_link_pic (info))
|
||||
/* LD -> LE */
|
||||
if (bfd_link_executable (info))
|
||||
{
|
||||
bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
|
||||
continue;
|
||||
|
|
@ -3706,43 +3648,42 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
|
|||
|
||||
case R_SPARC_TLS_LDO_HIX22:
|
||||
case R_SPARC_TLS_LDO_LOX10:
|
||||
if (bfd_link_pic (info))
|
||||
/* LD -> LE */
|
||||
if (bfd_link_executable (info))
|
||||
{
|
||||
if (r_type == R_SPARC_TLS_LDO_HIX22)
|
||||
r_type = R_SPARC_TLS_LE_HIX22;
|
||||
else
|
||||
r_type = R_SPARC_TLS_LE_LOX10;
|
||||
}
|
||||
else
|
||||
{
|
||||
relocation -= dtpoff_base (info);
|
||||
break;
|
||||
}
|
||||
|
||||
r_type = (r_type == R_SPARC_TLS_LDO_HIX22
|
||||
? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
|
||||
/* Fall through. */
|
||||
|
||||
case R_SPARC_TLS_LE_HIX22:
|
||||
case R_SPARC_TLS_LE_LOX10:
|
||||
if (bfd_link_pic (info))
|
||||
if (!bfd_link_executable (info))
|
||||
{
|
||||
Elf_Internal_Rela outrel;
|
||||
bfd_boolean skip;
|
||||
|
||||
BFD_ASSERT (sreloc != NULL);
|
||||
skip = FALSE;
|
||||
outrel.r_offset =
|
||||
_bfd_elf_section_offset (output_bfd, info, input_section,
|
||||
rel->r_offset);
|
||||
if (outrel.r_offset == (bfd_vma) -1)
|
||||
skip = TRUE;
|
||||
else if (outrel.r_offset == (bfd_vma) -2)
|
||||
skip = TRUE;
|
||||
outrel.r_offset += (input_section->output_section->vma
|
||||
+ input_section->output_offset);
|
||||
if (skip)
|
||||
bfd_vma offset
|
||||
= _bfd_elf_section_offset (output_bfd, info, input_section,
|
||||
rel->r_offset);
|
||||
if (offset == (bfd_vma) -1 || offset == (bfd_vma) -2)
|
||||
memset (&outrel, 0, sizeof outrel);
|
||||
else
|
||||
{
|
||||
outrel.r_offset = offset
|
||||
+ input_section->output_section->vma
|
||||
+ input_section->output_offset;
|
||||
outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
|
||||
outrel.r_addend = relocation - dtpoff_base (info)
|
||||
+ rel->r_addend;
|
||||
outrel.r_addend
|
||||
= relocation - dtpoff_base (info) + rel->r_addend;
|
||||
}
|
||||
|
||||
BFD_ASSERT (sreloc != NULL);
|
||||
sparc_elf_append_rela (output_bfd, sreloc, &outrel);
|
||||
continue;
|
||||
}
|
||||
|
|
@ -3750,7 +3691,8 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
|
|||
break;
|
||||
|
||||
case R_SPARC_TLS_LDM_CALL:
|
||||
if (! bfd_link_pic (info))
|
||||
/* LD -> LE */
|
||||
if (bfd_link_executable (info))
|
||||
{
|
||||
/* mov %g0, %o0 */
|
||||
bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
|
||||
|
|
@ -3759,20 +3701,22 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
|
|||
/* Fall through */
|
||||
|
||||
case R_SPARC_TLS_GD_CALL:
|
||||
tls_type = GOT_UNKNOWN;
|
||||
if (h == NULL && local_got_offsets)
|
||||
if (h != NULL)
|
||||
tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
|
||||
else if (local_got_offsets)
|
||||
tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
|
||||
else if (h != NULL)
|
||||
tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
|
||||
if (! bfd_link_pic (info)
|
||||
else
|
||||
tls_type = GOT_UNKNOWN;
|
||||
/* GD -> IE or LE */
|
||||
if (bfd_link_executable (info)
|
||||
|| (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
|
||||
{
|
||||
Elf_Internal_Rela *rel2;
|
||||
bfd_vma insn;
|
||||
|
||||
if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
|
||||
/* GD -> LE */
|
||||
if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
|
||||
{
|
||||
/* GD -> LE */
|
||||
bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
|
||||
continue;
|
||||
}
|
||||
|
|
@ -3835,12 +3779,14 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
|
|||
goto r_sparc_wplt30;
|
||||
|
||||
case R_SPARC_TLS_GD_ADD:
|
||||
tls_type = GOT_UNKNOWN;
|
||||
if (h == NULL && local_got_offsets)
|
||||
if (h != NULL)
|
||||
tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
|
||||
else if (local_got_offsets)
|
||||
tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
|
||||
else if (h != NULL)
|
||||
tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
|
||||
if (! bfd_link_pic (info) || tls_type == GOT_TLS_IE)
|
||||
else
|
||||
tls_type = GOT_UNKNOWN;
|
||||
/* GD -> IE or LE */
|
||||
if (bfd_link_executable (info) || tls_type == GOT_TLS_IE)
|
||||
{
|
||||
/* add %reg1, %reg2, %reg3, %tgd_add(foo)
|
||||
changed into IE:
|
||||
|
|
@ -3848,21 +3794,23 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
|
|||
or LE:
|
||||
add %g7, %reg2, %reg3. */
|
||||
bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||||
if ((h != NULL && h->dynindx != -1) || bfd_link_pic (info))
|
||||
relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
|
||||
else
|
||||
if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
|
||||
relocation = (insn & ~0x7c000) | 0x1c000;
|
||||
else
|
||||
relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
|
||||
bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
|
||||
}
|
||||
continue;
|
||||
|
||||
case R_SPARC_TLS_LDM_ADD:
|
||||
if (! bfd_link_pic (info))
|
||||
/* LD -> LE */
|
||||
if (bfd_link_executable (info))
|
||||
bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
|
||||
continue;
|
||||
|
||||
case R_SPARC_TLS_LDO_ADD:
|
||||
if (! bfd_link_pic (info))
|
||||
/* LD -> LE */
|
||||
if (bfd_link_executable (info))
|
||||
{
|
||||
/* Change rs1 into %g7. */
|
||||
bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||||
|
|
@ -3873,7 +3821,8 @@ _bfd_sparc_elf_relocate_section (bfd *output_bfd,
|
|||
|
||||
case R_SPARC_TLS_IE_LD:
|
||||
case R_SPARC_TLS_IE_LDX:
|
||||
if (! bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
|
||||
/* IE -> LE */
|
||||
if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
|
||||
{
|
||||
bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
||||
int rs2 = insn & 0x1f;
|
||||
|
|
|
|||
|
|
@ -1,3 +1,7 @@
|
|||
2018-02-06 Eric Botcazou <ebotcazou@adacore.com>
|
||||
|
||||
* gcc-plugin.m4 (GCC_ENABLE_PLUGINS): Remove -q option passed to grep.
|
||||
|
||||
2018-01-10 Nick Clifton <nickc@redhat.com>
|
||||
|
||||
* Sync with GCC sources:
|
||||
|
|
|
|||
|
|
@ -60,14 +60,14 @@ AC_DEFUN([GCC_ENABLE_PLUGINS],
|
|||
if test "x$export_sym_check" != x; then
|
||||
echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c
|
||||
${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest$ac_exeext > /dev/null 2>&1
|
||||
if $export_sym_check conftest$ac_exeext | grep -q foobar > /dev/null; then
|
||||
if $export_sym_check conftest$ac_exeext | grep foobar > /dev/null; then
|
||||
: # No need to use a flag
|
||||
AC_MSG_RESULT([yes])
|
||||
else
|
||||
AC_MSG_RESULT([yes])
|
||||
AC_MSG_CHECKING([for -rdynamic])
|
||||
${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest$ac_exeext > /dev/null 2>&1
|
||||
if $export_sym_check conftest$ac_exeext | grep -q foobar > /dev/null; then
|
||||
if $export_sym_check conftest$ac_exeext | grep foobar > /dev/null; then
|
||||
plugin_rdynamic=yes
|
||||
pluginlibs="-rdynamic"
|
||||
else
|
||||
|
|
|
|||
|
|
@ -1,3 +1,12 @@
|
|||
2018-02-06 Eric Botcazou <ebotcazou@adacore.com>
|
||||
|
||||
* testsuite/ld-elf/tls.exp (AFLAGS_PIC): Define on SPARC.
|
||||
(pr22263-1): Pass AFLAGS_PIC to the assembler.
|
||||
* testsuite/ld-sparc/tlspie32.s: Add test for other 3 transitions.
|
||||
* testsuite/ld-sparc/tlspie32.dd: Adjust to above.
|
||||
* testsuite/ld-sparc/tlspie64.s: Add test for other 3 transitions.
|
||||
* testsuite/ld-sparc/tlspie64.dd: Adjust to above.
|
||||
|
||||
2018-02-05 Renlin Li <renlin.li@arm.com>
|
||||
|
||||
PR ld/22764
|
||||
|
|
|
|||
|
|
@ -37,12 +37,18 @@ if { [which $CC] == 0 } {
|
|||
return
|
||||
}
|
||||
|
||||
# This target requires extra GAS options when building PIC/PIE code.
|
||||
set AFLAGS_PIC ""
|
||||
if [istarget "sparc*-*-*"] {
|
||||
append AFLAGS_PIC " -K PIC"
|
||||
}
|
||||
|
||||
run_ld_link_tests [list \
|
||||
[list \
|
||||
"Build pr22263-1" \
|
||||
"-pie -e _start -z text" \
|
||||
"" \
|
||||
"" \
|
||||
"$AFLAGS_PIC" \
|
||||
{ pr22263-1a.c pr22263-1b.c } \
|
||||
{{readelf -r pr22263-1.rd}} \
|
||||
"pr22263-1" \
|
||||
|
|
|
|||
|
|
@ -10,9 +10,56 @@
|
|||
|
||||
Disassembly of section .text:
|
||||
|
||||
0[0-9a-f]+ <get_gdp>:
|
||||
+[0-9a-f]+: 03 00 00 00 sethi %hi\(0\), %g1
|
||||
+[0-9a-f]+: 82 00 60 04 add %g1, 4, %g1 ! 4 <tls_gd\+0x4>
|
||||
+[0-9a-f]+: 90 05 c0 01 add %l7, %g1, %o0
|
||||
+[0-9a-f]+: 40 00 40 43 call [0-9a-f]+ <__tls_get_addr@plt>
|
||||
0[0-9a-f]+ <foo-0x8>:
|
||||
+[0-9a-f]+: 81 c3 e0 08 retl
|
||||
+[0-9a-f]+: ae 03 c0 17 add %o7, %l7, %l7
|
||||
|
||||
0[0-9a-f]+ <foo>:
|
||||
+[0-9a-f]+: 9d e3 bf 98 save %sp, -104, %sp
|
||||
+[0-9a-f]+: 2f 00 00 40 sethi %hi\(0x10000\), %l7
|
||||
+[0-9a-f]+: 7f ff ff fc call [0-9a-f]+ <.*>
|
||||
+[0-9a-f]+: ae 05 e1 60 add %l7, 0x160, %l7 ! 10160 <.*>
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 03 00 00 00 sethi %hi\(0\), %g1
|
||||
+[0-9a-f]+: 82 00 60 04 add %g1, 4, %g1 ! 4 <.*>
|
||||
+[0-9a-f]+: d0 05 c0 01 ld \[ %l7 \+ %g1 ], %o0
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 90 01 c0 08 add %g7, %o0, %o0
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 03 00 00 00 sethi %hi\(0\), %g1
|
||||
+[0-9a-f]+: 82 18 7f f4 xor %g1, -12, %g1
|
||||
+[0-9a-f]+: 90 01 c0 01 add %g7, %g1, %o0
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 90 10 00 00 mov %g0, %o0
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 03 00 00 00 sethi %hi\(0\), %g1
|
||||
+[0-9a-f]+: 82 18 7f f8 xor %g1, -8, %g1
|
||||
+[0-9a-f]+: 82 01 c0 01 add %g7, %g1, %g1
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 03 00 00 00 sethi %hi\(0\), %g1
|
||||
+[0-9a-f]+: 82 18 7f fc xor %g1, -4, %g1
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 82 01 c0 01 add %g7, %g1, %g1
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 81 c7 e0 08 ret
|
||||
+[0-9a-f]+: 81 e8 00 00 restore
|
||||
|
|
|
|||
|
|
@ -1,20 +1,70 @@
|
|||
.section ".text"
|
||||
.global tls_gd
|
||||
.section .tbss,"awT",@nobits
|
||||
.global tls_gd
|
||||
.align 4
|
||||
.type tls_gd, #object
|
||||
.size tls_gd, 4
|
||||
tls_gd:
|
||||
.skip 4
|
||||
.section ".text"
|
||||
.global tls_ld
|
||||
.align 4
|
||||
.global get_gdp
|
||||
.type get_gdp, #function
|
||||
.type tls_ld, #object
|
||||
.size tls_ld, 4
|
||||
tls_ld:
|
||||
.skip 4
|
||||
.global tls_ie
|
||||
.align 4
|
||||
.type tls_ie, #object
|
||||
.size tls_ie, 4
|
||||
tls_ie:
|
||||
.skip 4
|
||||
.section ".text"
|
||||
.LLGETPC0:
|
||||
retl
|
||||
add %o7, %l7, %l7
|
||||
.align 4
|
||||
.global foo
|
||||
.type foo, #function
|
||||
.proc 0104
|
||||
get_gdp:
|
||||
foo:
|
||||
save %sp, -104, %sp
|
||||
sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %l7
|
||||
call .LLGETPC0
|
||||
add %l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7
|
||||
nop;nop;nop;nop
|
||||
|
||||
/* GD -> IE with global variable not defined in executable */
|
||||
sethi %tgd_hi22(sG1), %g1
|
||||
add %g1, %tgd_lo10(sG1), %g1
|
||||
add %l7, %g1, %o0, %tgd_add(sG1)
|
||||
call __tls_get_addr, %tgd_call(sG1)
|
||||
nop
|
||||
nop;nop;nop;nop
|
||||
|
||||
/* GD -> LE with global variable defined in executable */
|
||||
sethi %tgd_hi22(tls_gd), %g1
|
||||
add %g1, %tgd_lo10(tls_gd), %g1
|
||||
add %l7, %g1, %o0, %tgd_add(tls_gd)
|
||||
call __tls_get_addr, %tgd_call(tls_gd)
|
||||
nop
|
||||
.size get_gdp, .-get_gdp
|
||||
nop;nop;nop;nop
|
||||
|
||||
/* LD -> LE with global variable defined in executable */
|
||||
sethi %tldm_hi22(tls_ld), %g1
|
||||
add %g1, %tldm_lo10(tls_ld), %g1
|
||||
add %l7, %g1, %o0, %tldm_add(tls_ld)
|
||||
call __tls_get_addr, %tldm_call(tls_ld)
|
||||
nop
|
||||
sethi %tldo_hix22(tls_ld), %g1
|
||||
xor %g1, %tldo_lox10(tls_ld), %g1
|
||||
add %o0, %g1, %g1, %tldo_add(tls_ld)
|
||||
nop;nop;nop;nop
|
||||
|
||||
/* IE -> LE with global variable defined in executable */
|
||||
sethi %tie_hi22(tls_ie), %g1
|
||||
add %g1, %tie_lo10(tls_ie), %g1
|
||||
ld [%l7 + %g1], %g1, %tie_ld(tls_ie)
|
||||
add %g7, %g1, %g1, %tie_add(tls_ie)
|
||||
nop;nop;nop;nop
|
||||
|
||||
ret
|
||||
restore
|
||||
|
|
|
|||
|
|
@ -10,9 +10,56 @@
|
|||
|
||||
Disassembly of section .text:
|
||||
|
||||
0[0-9a-f]+ <get_gdp>:
|
||||
+[0-9a-f]+: 03 00 00 00 sethi %hi\(0\), %g1
|
||||
+[0-9a-f]+: 82 00 60 08 add %g1, 8, %g1 ! 8 <tls_gd\+0x8>
|
||||
+[0-9a-f]+: 90 05 c0 01 add %l7, %g1, %o0
|
||||
+[0-9a-f]+: 40 04 00 bb call [0-9a-f]+ <__tls_get_addr@plt>
|
||||
0[0-9a-f]+ <foo-0x8>:
|
||||
+[0-9a-f]+: 81 c3 e0 08 retl
|
||||
+[0-9a-f]+: ae 03 c0 17 add %o7, %l7, %l7
|
||||
|
||||
0[0-9a-f]+ <foo>:
|
||||
+[0-9a-f]+: 9d e3 bf 60 save %sp, -160, %sp
|
||||
+[0-9a-f]+: 2f 00 04 00 sethi %hi\(0x100000\), %l7
|
||||
+[0-9a-f]+: 7f ff ff fc call [0-9a-f]+ <.*>
|
||||
+[0-9a-f]+: ae 05 e2 08 add %l7, 0x208, %l7 ! 100208 <.*>
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 03 00 00 00 sethi %hi\(0\), %g1
|
||||
+[0-9a-f]+: 82 00 60 08 add %g1, 8, %g1 ! 8 <.*>
|
||||
+[0-9a-f]+: d0 5d c0 01 ldx \[ %l7 \+ %g1 ], %o0
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 90 01 c0 08 add %g7, %o0, %o0
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 03 00 00 00 sethi %hi\(0\), %g1
|
||||
+[0-9a-f]+: 82 18 7f f4 xor %g1, -12, %g1
|
||||
+[0-9a-f]+: 90 01 c0 01 add %g7, %g1, %o0
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 90 10 00 00 mov %g0, %o0
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 03 00 00 00 sethi %hi\(0\), %g1
|
||||
+[0-9a-f]+: 82 18 7f f8 xor %g1, -8, %g1
|
||||
+[0-9a-f]+: 82 01 c0 01 add %g7, %g1, %g1
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 03 00 00 00 sethi %hi\(0\), %g1
|
||||
+[0-9a-f]+: 82 18 7f fc xor %g1, -4, %g1
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 82 01 c0 01 add %g7, %g1, %g1
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 01 00 00 00 nop
|
||||
+[0-9a-f]+: 81 c7 e0 08 ret
|
||||
+[0-9a-f]+: 81 e8 00 00 restore
|
||||
|
|
|
|||
|
|
@ -1,20 +1,70 @@
|
|||
.section ".text"
|
||||
.global tls_gd
|
||||
.section .tbss,"awT",@nobits
|
||||
.global tls_gd
|
||||
.align 4
|
||||
.type tls_gd, #object
|
||||
.size tls_gd, 4
|
||||
tls_gd:
|
||||
.skip 4
|
||||
.section ".text"
|
||||
.global tls_ld
|
||||
.align 4
|
||||
.global get_gdp
|
||||
.type get_gdp, #function
|
||||
.type tls_ld, #object
|
||||
.size tls_ld, 4
|
||||
tls_ld:
|
||||
.skip 4
|
||||
.global tls_ie
|
||||
.align 4
|
||||
.type tls_ie, #object
|
||||
.size tls_ie, 4
|
||||
tls_ie:
|
||||
.skip 4
|
||||
.section ".text"
|
||||
.LLGETPC0:
|
||||
retl
|
||||
add %o7, %l7, %l7
|
||||
.align 4
|
||||
.global foo
|
||||
.type foo, #function
|
||||
.proc 0104
|
||||
get_gdp:
|
||||
foo:
|
||||
save %sp, -160, %sp
|
||||
sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %l7
|
||||
call .LLGETPC0
|
||||
add %l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7
|
||||
nop;nop;nop;nop
|
||||
|
||||
/* GD -> IE with global variable not defined in executable */
|
||||
sethi %tgd_hi22(sG1), %g1
|
||||
add %g1, %tgd_lo10(sG1), %g1
|
||||
add %l7, %g1, %o0, %tgd_add(sG1)
|
||||
call __tls_get_addr, %tgd_call(sG1)
|
||||
nop
|
||||
nop;nop;nop;nop
|
||||
|
||||
/* GD -> LE with global variable defined in executable */
|
||||
sethi %tgd_hi22(tls_gd), %g1
|
||||
add %g1, %tgd_lo10(tls_gd), %g1
|
||||
add %l7, %g1, %o0, %tgd_add(tls_gd)
|
||||
call __tls_get_addr, %tgd_call(tls_gd)
|
||||
nop
|
||||
.size get_gdp, .-get_gdp
|
||||
nop;nop;nop;nop
|
||||
|
||||
/* LD -> LE with global variable defined in executable */
|
||||
sethi %tldm_hi22(tls_ld), %g1
|
||||
add %g1, %tldm_lo10(tls_ld), %g1
|
||||
add %l7, %g1, %o0, %tldm_add(tls_ld)
|
||||
call __tls_get_addr, %tldm_call(tls_ld)
|
||||
nop
|
||||
sethi %tldo_hix22(tls_ld), %g1
|
||||
xor %g1, %tldo_lox10(tls_ld), %g1
|
||||
add %o0, %g1, %g1, %tldo_add(tls_ld)
|
||||
nop;nop;nop;nop
|
||||
|
||||
/* IE -> LE with global variable defined in executable */
|
||||
sethi %tie_hi22(tls_ie), %g1
|
||||
add %g1, %tie_lo10(tls_ie), %g1
|
||||
ldx [%l7 + %g1], %g1, %tie_ldx(tls_ie)
|
||||
add %g7, %g1, %g1, %tie_add(tls_ie)
|
||||
nop;nop;nop;nop
|
||||
|
||||
ret
|
||||
restore
|
||||
|
|
|
|||
Loading…
Reference in New Issue