From dd82c578be73d9140d047f30636320e25165c4ab Mon Sep 17 00:00:00 2001 From: Michael Meissner Date: Fri, 22 Sep 1995 02:30:57 +0000 Subject: [PATCH] Add support -mrelocatable-lib --- bfd/ChangeLog | 6 +++++ bfd/elf32-ppc.c | 60 +++++++++++++++++++++++++++++-------------------- 2 files changed, 42 insertions(+), 24 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 9f7157ceec9..629b2570c45 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +Thu Sep 21 21:53:18 1995 Michael Meissner + + * elf32-ppc.c (ppc_elf_merge_private_bfd_data): Allow modules + compiled with -mrelocatable-lib to be linked with either normal + modules or -mrelocatable modules. + Wed Sep 20 12:03:26 1995 Ian Lance Taylor * coffcode.h (coff_write_object_contents): Clear the vstamp field diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c index c55c396a22e..3620c7f8131 100644 --- a/bfd/elf32-ppc.c +++ b/bfd/elf32-ppc.c @@ -16,7 +16,7 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software -Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* This file is based on a preliminary PowerPC ELF ABI. The information may not match the final PowerPC ELF ABI. It includes @@ -35,7 +35,7 @@ static bfd_reloc_status_type ppc_elf_unsupported_reloc static bfd_reloc_status_type ppc_elf_std_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); -static bfd_vma ppc_elf_addr16_ha_inner PARAMS ((asection *, bfd_vma, bfd_vma)); +static bfd_vma ppc_elf_addr16_ha_inner PARAMS ((bfd_vma)); static bfd_reloc_status_type ppc_elf_addr16_ha_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); static bfd_vma ppc_elf_got16_inner PARAMS ((asection *sec)); @@ -643,16 +643,16 @@ static reloc_howto_type ppc_elf_howto_raw[] = small data items. */ HOWTO (R_PPC_SDAREL, /* type */ 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - ppc_elf_unsupported_reloc, /* special_function */ + complain_overflow_signed, /* complain_on_overflow */ + ppc_elf_got16_reloc, /* special_function */ "R_PPC_SDAREL", /* name */ false, /* partial_inplace */ 0, /* src_mask */ - 0xffff, /* dst_mask */ + 0xffff, /* dst_mask */ false), /* pcrel_offset */ /* These next 4 relocations were added by Sun. */ @@ -834,6 +834,7 @@ ppc_elf_reloc_type_lookup (abfd, code) case BFD_RELOC_LO16: return ppc_elf_howto_table[ (int) R_PPC_ADDR16_LO ]; case BFD_RELOC_HI16: return ppc_elf_howto_table[ (int) R_PPC_ADDR16_HI ]; case BFD_RELOC_HI16_S: return ppc_elf_howto_table[ (int) R_PPC_ADDR16_HA ]; + case BFD_RELOC_GPREL16: return ppc_elf_howto_table[ (int) R_PPC_SDAREL ]; } return (reloc_howto_type *)NULL; @@ -931,21 +932,29 @@ ppc_elf_merge_private_bfd_data (ibfd, obfd) else /* Incompatible flags */ { - /* Warn about -mrelocatable mismatch */ - if ((new_flags & EF_PPC_RELOCATABLE) != 0 && (old_flags & EF_PPC_RELOCATABLE) == 0) + /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib to be linked + with either. */ + if ((new_flags & EF_PPC_RELOCATABLE) != 0 + && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0) { new_flags &= ~EF_PPC_RELOCATABLE; fprintf (stderr, "%s: compiled with -mrelocatable and linked with modules compiled normally\n", bfd_get_filename (ibfd)); } - else if ((new_flags & EF_PPC_RELOCATABLE) == 0 && (old_flags & EF_PPC_RELOCATABLE) != 0) + else if ((new_flags & EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB) == 0 + && (old_flags & EF_PPC_RELOCATABLE) != 0) { old_flags &= ~EF_PPC_RELOCATABLE; fprintf (stderr, "%s: compiled normally and linked with modules compiled with -mrelocatable\n", bfd_get_filename (ibfd)); } + else if ((new_flags & EF_PPC_RELOCATABLE_LIB) != 0) + elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE_LIB; + + new_flags &= ~ (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB); + old_flags &= ~ (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB); /* Warn about eabi vs. V.4 mismatch */ if ((new_flags & EF_PPC_EMB) != 0 && (old_flags & EF_PPC_EMB) == 0) @@ -1041,21 +1050,14 @@ ppc_elf_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section, /* Internal function to return the adjustment to the addend for relocations that return the upper 16 bits after sign extending the lower 16 bits, ie - for use with a ORIS instruction followed by a memory reference using the + for use with a ADDIS instruction followed by a memory reference using the bottom 16 bits. */ INLINE static bfd_vma -ppc_elf_addr16_ha_inner (sec, value, addend) - asection *sec; - bfd_vma value; - bfd_vma addend; +ppc_elf_addr16_ha_inner (relocation) + bfd_vma relocation; { - bfd_vma relocation = (value - + sec->output_section->vma - + sec->output_offset - + addend); - return (relocation & 0x8000) << 1; } @@ -1073,13 +1075,20 @@ ppc_elf_addr16_ha_reloc (abfd, reloc_entry, symbol, data, input_section, bfd *output_bfd; char **error_message; { + bfd_vma relocation; + asection *sec; + if (output_bfd != (bfd *) NULL) return ppc_elf_std_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd, error_message); - reloc_entry->addend += ppc_elf_addr16_ha_inner (symbol->section, - (bfd_is_com_section (symbol->section)) ? 0 : symbol->value, - reloc_entry->addend); + sec = symbol->section; + relocation = (((bfd_is_com_section (sec)) ? 0 : symbol->value) + + sec->output_section->vma + + sec->output_offset + + reloc_entry->addend); + + reloc_entry->addend += ppc_elf_addr16_ha_inner (relocation); return bfd_reloc_continue; } @@ -1093,7 +1102,9 @@ ppc_elf_got16_inner (sec) { BFD_ASSERT (bfd_is_und_section (sec) || strcmp (bfd_get_section_name (abfd, sec), ".got") == 0 - || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0); + || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0 + || strcmp (bfd_get_section_name (abfd, sec), ".sdata") == 0 + || strcmp (bfd_get_section_name (abfd, sec), ".sbss") == 0) return -(sec->output_section->vma + 0x8000); } @@ -1298,13 +1309,14 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section, case (int)R_PPC_GOT16: /* GOT16 relocations */ case (int)R_PPC_GOT16_LO: case (int)R_PPC_GOT16_HI: + case (int)R_PPC_SDAREL: BFD_ASSERT (sec != (asection *)0); addend += ppc_elf_got16_inner (sec); break; case (int)R_PPC_ADDR16_HA: /* arithmetic adjust relocations */ BFD_ASSERT (sec != (asection *)0); - addend += ppc_elf_addr16_ha_inner (sec, relocation, addend); + addend += ppc_elf_addr16_ha_inner (relocation + addend); break; } -- 2.30.2