From 896d548cb1cc34cdc6495c880eb42262fd6f1648 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Fri, 18 Apr 1997 15:50:19 +0000 Subject: [PATCH] * coff-alpha.c (bsd_alpha_howto_table): Cloned from alpha_howto_table but with an added LITERALSLEAZY entry. (alpha_adjust_reloc_in): Add handling of LITERALSLEAZY relocs. Use info on the howto_table gotten from the ecoff_backend data. (alpha_ecoff_get_relocated_section_contents): Ditto. (alpha_bfd_reloc_type_lookup): Ditto. (alpha_relocate_section): Ditto. Also remove an assertion causing failures on *BSD/alpha systems. (alpha_ecoff_backend_data): Addition of fields to handle different howto tables as well as a has_literalseazy flag. (bsd_alpha_ecoff_backend_data): New backend data structure for *BSD. (bsd_ecoffalpha_little_vec): Define. * coff-mips.c (MIPS_HOWTO_COUNT): Removed, it's unused. (mips_adjust_reloc_in): Use new ecoff_backend data to get at the howto table. (mips_bfd_reloc_type_lookup): Ditto. (mips_relocate_section): Ditto. (mips_ecoff_backend_data): Addition of fields to handle different howto tables as well as a has_literalseazy flag. * config.bfd: (alpha-*-openbsd*): New target. * configure.in (alpha*-*-openbsd*): New target. (bsd_ecoffalpha_little_vec): New vector for *BSD/Alpha ECOFF. * ecoff.c (_bfd_ecoff_set_arch_mach_hook): Handle new magic. (ecoff_get_magic): Ditto. * libecoff.h (ecoff_backend_data): Addition of fields to handle different howto tables as well as a has_literalseazy flag. * reloc.c: BFD_RELOC_ALPHA_LITERALSLEAZY): New reloc. * targets.c (bsd_ecoffalpha_little_vec): Declare. (bfd_target_vector): Include the bsd_ecoffalpha_little_vec target. * configure, bfd-in2.h, libbfd.h: Rebuild. --- bfd/ChangeLog | 33 +++++ bfd/coff-mips.c | 372 ++++++++++++++++++++++++++++++++---------------- bfd/ecoff.c | 45 ++++-- 3 files changed, 316 insertions(+), 134 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index f3083bd9d18..2b32a700da0 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,36 @@ +Fri Apr 18 11:42:55 1997 Niklas Hallqvist + + * coff-alpha.c (bsd_alpha_howto_table): Cloned from alpha_howto_table + but with an added LITERALSLEAZY entry. + (alpha_adjust_reloc_in): Add handling of LITERALSLEAZY relocs. Use + info on the howto_table gotten from the ecoff_backend data. + (alpha_ecoff_get_relocated_section_contents): Ditto. + (alpha_bfd_reloc_type_lookup): Ditto. + (alpha_relocate_section): Ditto. Also remove an assertion + causing failures on *BSD/alpha systems. + (alpha_ecoff_backend_data): Addition of fields to handle different + howto tables as well as a has_literalseazy flag. + (bsd_alpha_ecoff_backend_data): New backend data structure for *BSD. + (bsd_ecoffalpha_little_vec): Define. + * coff-mips.c (MIPS_HOWTO_COUNT): Removed, it's unused. + (mips_adjust_reloc_in): Use new ecoff_backend data to get at the howto + table. + (mips_bfd_reloc_type_lookup): Ditto. + (mips_relocate_section): Ditto. + (mips_ecoff_backend_data): Addition of fields to handle different + howto tables as well as a has_literalseazy flag. + * config.bfd: (alpha-*-openbsd*): New target. + * configure.in (alpha*-*-openbsd*): New target. + (bsd_ecoffalpha_little_vec): New vector for *BSD/Alpha ECOFF. + * ecoff.c (_bfd_ecoff_set_arch_mach_hook): Handle new magic. + (ecoff_get_magic): Ditto. + * libecoff.h (ecoff_backend_data): Addition of fields to handle + different howto tables as well as a has_literalseazy flag. + * reloc.c: BFD_RELOC_ALPHA_LITERALSLEAZY): New reloc. + * targets.c (bsd_ecoffalpha_little_vec): Declare. + (bfd_target_vector): Include the bsd_ecoffalpha_little_vec target. + * configure, bfd-in2.h, libbfd.h: Rebuild. + Thu Apr 17 13:46:56 1997 Per Fogelstrom * configure.host (mips*-*-openbsd*): New host. diff --git a/bfd/coff-mips.c b/bfd/coff-mips.c index 2b0a6a7fcd0..d2a34de697f 100644 --- a/bfd/coff-mips.c +++ b/bfd/coff-mips.c @@ -1,5 +1,5 @@ /* BFD back-end for MIPS Extended-Coff files. - Copyright 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc. + Copyright 1990, 91, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. Original version by Per Bothner. Full support added by Ian Lance Taylor, ian@cygnus.com. @@ -112,6 +112,9 @@ static boolean mips_relax_pcrel16 PARAMS ((struct bfd_link_info *, bfd *, asection *, struct ecoff_link_hash_entry *, bfd_byte *, bfd_vma)); +static reloc_howto_type *mips_bfd_reloc_type_lookup + PARAMS ((bfd *, bfd_reloc_code_real_type)); + /* ECOFF has COFF sections, but the debugging information is stored in a completely different format. ECOFF targets use some of the @@ -359,9 +362,6 @@ static reloc_howto_type mips_howto_table[] = true) /* pcrel_offset */ }; -#define MIPS_HOWTO_COUNT \ - (sizeof mips_howto_table / sizeof mips_howto_table[0]) - /* When the linker is doing relaxing, it may change a external PCREL16 reloc. This typically represents an instruction like bal foo @@ -538,7 +538,7 @@ mips_adjust_reloc_in (abfd, intern, rptr) if (! intern->r_extern && (intern->r_type == MIPS_R_GPREL || intern->r_type == MIPS_R_LITERAL)) - rptr->addend += _bfd_get_gp_value (abfd); + rptr->addend += ecoff_data (abfd)->gp; /* If the type is MIPS_R_IGNORE, make sure this is a reference to the absolute section so that the reloc is ignored. */ @@ -557,7 +557,7 @@ mips_adjust_reloc_in (abfd, intern, rptr) || intern->r_type == MIPS_R_RELLO))) rptr->addend = intern->r_offset; - rptr->howto = &mips_howto_table[intern->r_type]; + rptr->howto = &ecoff_backend (abfd)->howto_table[intern->r_type]; } /* Make any adjustments needed to a reloc before writing it out. None @@ -623,10 +623,21 @@ mips_generic_reloc (abfd, REFLO reloc, because there is a carry from the REFLO to the REFHI. Here we just save the information we need; we do the actual relocation when we see the REFLO. MIPS ECOFF requires that the - REFLO immediately follow the REFHI, so this ought to work. */ + REFLO immediately follow the REFHI. As a GNU extension, we permit + an arbitrary number of HI relocs to be associated with a single LO + reloc. This extension permits gcc to output the HI and LO relocs + itself. */ + +struct mips_hi +{ + struct mips_hi *next; + bfd_byte *addr; + bfd_vma addend; +}; -static bfd_byte *mips_refhi_addr; -static bfd_vma mips_refhi_addend; +/* FIXME: This should not be a static variable. */ + +static struct mips_hi *mips_refhi_list; static bfd_reloc_status_type mips_refhi_reloc (abfd, @@ -646,6 +657,7 @@ mips_refhi_reloc (abfd, { bfd_reloc_status_type ret; bfd_vma relocation; + struct mips_hi *n; /* If we're relocating, and this an external symbol, we don't want to change anything. */ @@ -675,8 +687,13 @@ mips_refhi_reloc (abfd, return bfd_reloc_outofrange; /* Save the information, and let REFLO do the actual relocation. */ - mips_refhi_addr = (bfd_byte *) data + reloc_entry->address; - mips_refhi_addend = relocation; + n = (struct mips_hi *) bfd_malloc (sizeof *n); + if (n == NULL) + return bfd_reloc_outofrange; + n->addr = (bfd_byte *) data + reloc_entry->address; + n->addend = relocation; + n->next = mips_refhi_list; + mips_refhi_list = n; if (output_bfd != (bfd *) NULL) reloc_entry->address += input_section->output_offset; @@ -704,36 +721,48 @@ mips_reflo_reloc (abfd, bfd *output_bfd; char **error_message; { - if (mips_refhi_addr != (bfd_byte *) NULL) + if (mips_refhi_list != NULL) { - unsigned long insn; - unsigned long val; - unsigned long vallo; - - /* Do the REFHI relocation. Note that we actually don't need to - know anything about the REFLO itself, except where to find - the low 16 bits of the addend needed by the REFHI. */ - insn = bfd_get_32 (abfd, mips_refhi_addr); - vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) - & 0xffff); - val = ((insn & 0xffff) << 16) + vallo; - val += mips_refhi_addend; - - /* The low order 16 bits are always treated as a signed value. - Therefore, a negative value in the low order bits requires an - adjustment in the high order bits. We need to make this - adjustment in two ways: once for the bits we took from the - data, and once for the bits we are putting back in to the - data. */ - if ((vallo & 0x8000) != 0) - val -= 0x10000; - if ((val & 0x8000) != 0) - val += 0x10000; - - insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff); - bfd_put_32 (abfd, insn, mips_refhi_addr); - - mips_refhi_addr = (bfd_byte *) NULL; + struct mips_hi *l; + + l = mips_refhi_list; + while (l != NULL) + { + unsigned long insn; + unsigned long val; + unsigned long vallo; + struct mips_hi *next; + + /* Do the REFHI relocation. Note that we actually don't + need to know anything about the REFLO itself, except + where to find the low 16 bits of the addend needed by the + REFHI. */ + insn = bfd_get_32 (abfd, l->addr); + vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) + & 0xffff); + val = ((insn & 0xffff) << 16) + vallo; + val += l->addend; + + /* The low order 16 bits are always treated as a signed + value. Therefore, a negative value in the low order bits + requires an adjustment in the high order bits. We need + to make this adjustment in two ways: once for the bits we + took from the data, and once for the bits we are putting + back in to the data. */ + if ((vallo & 0x8000) != 0) + val -= 0x10000; + if ((val & 0x8000) != 0) + val += 0x10000; + + insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff); + bfd_put_32 (abfd, insn, l->addr); + + next = l->next; + free (l); + l = next; + } + + mips_refhi_list = NULL; } /* Now do the REFLO reloc in the usual way. */ @@ -761,6 +790,7 @@ mips_gprel_reloc (abfd, char **error_message; { boolean relocateable; + bfd_vma gp; bfd_vma relocation; unsigned long val; unsigned long insn; @@ -794,15 +824,16 @@ mips_gprel_reloc (abfd, BFD. If we can't find it, we're stuck. We cache it in the ECOFF target data. We don't need to adjust the symbol value for an external symbol if we are producing relocateable output. */ - if (_bfd_get_gp_value (output_bfd) == 0 + gp = _bfd_get_gp_value (output_bfd); + if (gp == 0 && (relocateable == false || (symbol->flags & BSF_SECTION_SYM) != 0)) { if (relocateable != false) { /* Make up a value. */ - _bfd_set_gp_value (output_bfd, - symbol->section->output_section->vma + 0x4000); + gp = symbol->section->output_section->vma + 0x4000; + _bfd_set_gp_value (output_bfd, gp); } else { @@ -824,8 +855,8 @@ mips_gprel_reloc (abfd, name = bfd_asymbol_name (*sym); if (*name == '_' && strcmp (name, "_gp") == 0) { - _bfd_set_gp_value (output_bfd, - bfd_asymbol_value (*sym)); + gp = bfd_asymbol_value (*sym); + _bfd_set_gp_value (output_bfd, gp); break; } } @@ -834,7 +865,8 @@ mips_gprel_reloc (abfd, if (i >= count) { /* Only get the error once. */ - _bfd_set_gp_value (output_bfd, 4); + gp = 4; + _bfd_set_gp_value (output_bfd, gp); *error_message = (char *) "GP relative relocation when _gp not defined"; return bfd_reloc_dangerous; @@ -865,7 +897,7 @@ mips_gprel_reloc (abfd, an external symbol. */ if (relocateable == false || (symbol->flags & BSF_SECTION_SYM) != 0) - val += relocation - _bfd_get_gp_value (output_bfd); + val += relocation - gp; insn = (insn &~ 0xffff) | (val & 0xffff); bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); @@ -885,8 +917,9 @@ mips_gprel_reloc (abfd, are Cygnus extensions used when generating position independent code for embedded systems. */ -static bfd_byte *mips_relhi_addr; -static bfd_vma mips_relhi_addend; +/* FIXME: This should not be a static variable. */ + +static struct mips_hi *mips_relhi_list; static bfd_reloc_status_type mips_relhi_reloc (abfd, @@ -906,6 +939,7 @@ mips_relhi_reloc (abfd, { bfd_reloc_status_type ret; bfd_vma relocation; + struct mips_hi *n; /* If this is a reloc against a section symbol, then it is correct in the object file. The only time we want to change this case is @@ -944,8 +978,13 @@ mips_relhi_reloc (abfd, return bfd_reloc_outofrange; /* Save the information, and let RELLO do the actual relocation. */ - mips_relhi_addr = (bfd_byte *) data + reloc_entry->address; - mips_relhi_addend = relocation; + n = (struct mips_hi *) bfd_malloc (sizeof *n); + if (n == NULL) + return bfd_reloc_outofrange; + n->addr = (bfd_byte *) data + reloc_entry->address; + n->addend = relocation; + n->next = mips_relhi_list; + mips_relhi_list = n; if (output_bfd != (bfd *) NULL) reloc_entry->address += input_section->output_offset; @@ -973,46 +1012,58 @@ mips_rello_reloc (abfd, bfd *output_bfd; char **error_message; { - if (mips_relhi_addr != (bfd_byte *) NULL) + if (mips_relhi_list != NULL) { - unsigned long insn; - unsigned long val; - unsigned long vallo; - - /* Do the RELHI relocation. Note that we actually don't need to - know anything about the RELLO itself, except where to find - the low 16 bits of the addend needed by the RELHI. */ - insn = bfd_get_32 (abfd, mips_relhi_addr); - vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) - & 0xffff); - val = ((insn & 0xffff) << 16) + vallo; - val += mips_relhi_addend; - - /* If the symbol is defined, make val PC relative. If the - symbol is not defined we don't want to do this, because we - don't want the value in the object file to incorporate the - address of the reloc. */ - if (! bfd_is_und_section (bfd_get_section (symbol)) - && ! bfd_is_com_section (bfd_get_section (symbol))) - val -= (input_section->output_section->vma - + input_section->output_offset - + reloc_entry->address); - - /* The low order 16 bits are always treated as a signed value. - Therefore, a negative value in the low order bits requires an - adjustment in the high order bits. We need to make this - adjustment in two ways: once for the bits we took from the - data, and once for the bits we are putting back in to the - data. */ - if ((vallo & 0x8000) != 0) - val -= 0x10000; - if ((val & 0x8000) != 0) - val += 0x10000; - - insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff); - bfd_put_32 (abfd, insn, mips_relhi_addr); - - mips_relhi_addr = (bfd_byte *) NULL; + struct mips_hi *l; + + l = mips_relhi_list; + while (l != NULL) + { + unsigned long insn; + unsigned long val; + unsigned long vallo; + struct mips_hi *next; + + /* Do the RELHI relocation. Note that we actually don't + need to know anything about the RELLO itself, except + where to find the low 16 bits of the addend needed by the + RELHI. */ + insn = bfd_get_32 (abfd, l->addr); + vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) + & 0xffff); + val = ((insn & 0xffff) << 16) + vallo; + val += l->addend; + + /* If the symbol is defined, make val PC relative. If the + symbol is not defined we don't want to do this, because + we don't want the value in the object file to incorporate + the address of the reloc. */ + if (! bfd_is_und_section (bfd_get_section (symbol)) + && ! bfd_is_com_section (bfd_get_section (symbol))) + val -= (input_section->output_section->vma + + input_section->output_offset + + reloc_entry->address); + + /* The low order 16 bits are always treated as a signed + value. Therefore, a negative value in the low order bits + requires an adjustment in the high order bits. We need + to make this adjustment in two ways: once for the bits we + took from the data, and once for the bits we are putting + back in to the data. */ + if ((vallo & 0x8000) != 0) + val -= 0x10000; + if ((val & 0x8000) != 0) + val += 0x10000; + + insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff); + bfd_put_32 (abfd, insn, l->addr); + + next = l->next; + free (l); + l = next; + } + + mips_relhi_list = NULL; } /* If this is a reloc against a section symbol, then it is correct @@ -1114,7 +1165,7 @@ mips_bfd_reloc_type_lookup (abfd, code) return (reloc_howto_type *) NULL; } - return &mips_howto_table[mips_type]; + return &ecoff_backend (abfd)->howto_table[mips_type]; } /* A helper routine for mips_relocate_section which handles the REFHI @@ -1191,8 +1242,8 @@ mips_relocate_section (output_bfd, info, input_bfd, input_section, boolean got_lo; struct internal_reloc lo_int_rel; - BFD_ASSERT (input_bfd->xvec->header_byteorder - == output_bfd->xvec->header_byteorder); + BFD_ASSERT (input_bfd->xvec->byteorder + == output_bfd->xvec->byteorder); /* We keep a table mapping the symndx found in an internal reloc to the appropriate section. This is faster than looking up the @@ -1258,6 +1309,7 @@ mips_relocate_section (output_bfd, info, input_bfd, input_section, for (i = 0; ext_rel < ext_rel_end; ext_rel++, i++) { struct internal_reloc int_rel; + boolean use_lo; bfd_vma addend; reloc_howto_type *howto; struct ecoff_link_hash_entry *h = NULL; @@ -1273,8 +1325,7 @@ mips_relocate_section (output_bfd, info, input_bfd, input_section, got_lo = false; } - BFD_ASSERT (int_rel.r_type - < sizeof mips_howto_table / sizeof mips_howto_table[0]); + BFD_ASSERT (int_rel.r_type < ecoff_backend (abfd)->howto_table_size); /* The REFHI and RELHI relocs requires special handling. they must be followed by a REFLO or RELLO reloc, respectively, and @@ -1282,19 +1333,36 @@ mips_relocate_section (output_bfd, info, input_bfd, input_section, if (int_rel.r_type == MIPS_R_REFHI || int_rel.r_type == MIPS_R_RELHI) { - BFD_ASSERT ((ext_rel + 1) < ext_rel_end); - mips_ecoff_swap_reloc_in (input_bfd, (PTR) (ext_rel + 1), - &lo_int_rel); - BFD_ASSERT ((lo_int_rel.r_type - == (int_rel.r_type == MIPS_R_REFHI - ? MIPS_R_REFLO - : MIPS_R_RELLO)) - && int_rel.r_extern == lo_int_rel.r_extern - && int_rel.r_symndx == lo_int_rel.r_symndx); - got_lo = true; + struct external_reloc *lo_ext_rel; + + /* As a GNU extension, permit an arbitrary number of REFHI + or RELHI relocs before the REFLO or RELLO reloc. This + permits gcc to emit the HI and LO relocs itself. */ + for (lo_ext_rel = ext_rel + 1; + lo_ext_rel < ext_rel_end; + lo_ext_rel++) + { + mips_ecoff_swap_reloc_in (input_bfd, (PTR) lo_ext_rel, + &lo_int_rel); + if (lo_int_rel.r_type != int_rel.r_type) + break; + } + + if (lo_ext_rel < ext_rel_end + && (lo_int_rel.r_type + == (int_rel.r_type == MIPS_R_REFHI + ? MIPS_R_REFLO + : MIPS_R_RELLO)) + && int_rel.r_extern == lo_int_rel.r_extern + && int_rel.r_symndx == lo_int_rel.r_symndx) + { + use_lo = true; + if (lo_ext_rel == ext_rel + 1) + got_lo = true; + } } - howto = &mips_howto_table[int_rel.r_type]; + howto = &ecoff_backend (abfd)->howto_table[int_rel.r_type]; /* The SWITCH reloc must be handled specially. This reloc is marks the location of a difference between two portions of an @@ -1567,8 +1635,8 @@ mips_relocate_section (output_bfd, info, input_bfd, input_section, being against a section, we must put a special value into the r_offset field. This value is the old addend. The r_offset for - both the RELOHI and RELLO relocs are the - same, and we set both when we see RELHI. */ + both the RELHI and RELLO relocs are the same, + and we set both when we see RELHI. */ if (int_rel.r_type == MIPS_R_RELHI) { long addhi, addlo; @@ -1583,17 +1651,23 @@ mips_relocate_section (output_bfd, info, input_bfd, input_section, addhi -= 0x10000; addhi <<= 16; - addlo = bfd_get_32 (input_bfd, - (contents - + adjust - + lo_int_rel.r_vaddr - - input_section->vma)); - addlo &= 0xffff; - if (addlo & 0x8000) - addlo -= 0x10000; + if (! use_lo) + addlo = 0; + else + { + addlo = bfd_get_32 (input_bfd, + (contents + + adjust + + lo_int_rel.r_vaddr + - input_section->vma)); + addlo &= 0xffff; + if (addlo & 0x8000) + addlo -= 0x10000; + + lo_int_rel.r_offset = addhi + addlo; + } int_rel.r_offset = addhi + addlo; - lo_int_rel.r_offset = int_rel.r_offset; } } @@ -1657,7 +1731,8 @@ mips_relocate_section (output_bfd, info, input_bfd, input_section, - input_section->vma)); else { - mips_relocate_hi (&int_rel, &lo_int_rel, + mips_relocate_hi (&int_rel, + use_lo ? &lo_int_rel : NULL, input_bfd, input_section, contents, adjust, relocation, int_rel.r_type == MIPS_R_RELHI); @@ -1711,7 +1786,7 @@ mips_relocate_section (output_bfd, info, input_bfd, input_section, adding in the start address. */ if (howto->pc_relative) { - if (int_rel.r_type != MIPS_R_RELHI) + if (int_rel.r_type != MIPS_R_RELHI || ! use_lo) relocation += int_rel.r_vaddr + adjust; else relocation += lo_int_rel.r_vaddr + adjust; @@ -1731,8 +1806,9 @@ mips_relocate_section (output_bfd, info, input_bfd, input_section, addend); else { - mips_relocate_hi (&int_rel, &lo_int_rel, input_bfd, - input_section, contents, adjust, + mips_relocate_hi (&int_rel, + use_lo ? &lo_int_rel : NULL, + input_bfd, input_section, contents, adjust, relocation, int_rel.r_type == MIPS_R_RELHI); r = bfd_reloc_ok; @@ -1798,7 +1874,7 @@ mips_read_relocs (abfd, sec) if (section_tdata == (struct ecoff_section_tdata *) NULL) { sec->used_by_bfd = - (PTR) bfd_alloc_by_size_t (abfd, sizeof (struct ecoff_section_tdata)); + (PTR) bfd_alloc (abfd, sizeof (struct ecoff_section_tdata)); if (sec->used_by_bfd == NULL) return false; @@ -2034,7 +2110,7 @@ mips_relax_section (abfd, sec, info, again) size_t size; size = sec->reloc_count * sizeof (long); - offsets = (long *) bfd_alloc_by_size_t (abfd, size); + offsets = (long *) bfd_alloc (abfd, size); if (offsets == (long *) NULL) goto error_return; memset (offsets, 0, size); @@ -2417,7 +2493,7 @@ static const struct ecoff_backend_data mips_ecoff_backend_data = (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* reloc_out */ mips_ecoff_swap_filehdr_out, mips_ecoff_swap_aouthdr_out, mips_ecoff_swap_scnhdr_out, - FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, 0, true, + FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, 0, true, false, 4, mips_ecoff_swap_filehdr_in, mips_ecoff_swap_aouthdr_in, mips_ecoff_swap_scnhdr_in, NULL, mips_ecoff_bad_format_hook, _bfd_ecoff_set_arch_mach_hook, @@ -2481,6 +2557,12 @@ static const struct ecoff_backend_data mips_ecoff_backend_data = }, /* External reloc size. */ RELSZ, + /* Howto reloc table. */ + mips_howto_table, + /* Howto reloc table size. */ + sizeof mips_howto_table / sizeof mips_howto_table[0], + /* Does this backend implement the LITERALSLEAZY reloc? */ + false, /* Reloc swapping functions. */ mips_ecoff_swap_reloc_in, mips_ecoff_swap_reloc_out, @@ -2591,3 +2673,45 @@ const bfd_target ecoff_big_vec = (PTR) &mips_ecoff_backend_data }; + +const bfd_target ecoff_biglittle_vec = +{ + "ecoff-biglittlemips", /* name */ + bfd_target_ecoff_flavour, + BFD_ENDIAN_LITTLE, /* data byte order is little */ + BFD_ENDIAN_BIG, /* header byte order is big */ + + (HAS_RELOC | EXEC_P | /* object flags */ + HAS_LINENO | HAS_DEBUG | + HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), + + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), + 0, /* leading underscore */ + ' ', /* ar_pad_char */ + 15, /* ar_max_namelen */ + bfd_getl64, bfd_getl_signed_64, bfd_putl64, + bfd_getl32, bfd_getl_signed_32, bfd_putl32, + bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ + bfd_getb64, bfd_getb_signed_64, bfd_putb64, + bfd_getb32, bfd_getb_signed_32, bfd_putb32, + bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ + + {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ + _bfd_ecoff_archive_p, _bfd_dummy_target}, + {bfd_false, _bfd_ecoff_mkobject, /* bfd_set_format */ + _bfd_generic_mkarchive, bfd_false}, + {bfd_false, _bfd_ecoff_write_object_contents, /* bfd_write_contents */ + _bfd_write_archive_contents, bfd_false}, + + BFD_JUMP_TABLE_GENERIC (_bfd_ecoff), + BFD_JUMP_TABLE_COPY (_bfd_ecoff), + BFD_JUMP_TABLE_CORE (_bfd_nocore), + BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff), + BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff), + BFD_JUMP_TABLE_RELOCS (_bfd_ecoff), + BFD_JUMP_TABLE_WRITE (_bfd_ecoff), + BFD_JUMP_TABLE_LINK (_bfd_ecoff), + BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), + + (PTR) &mips_ecoff_backend_data +}; diff --git a/bfd/ecoff.c b/bfd/ecoff.c index 30bb34c1a07..dcedb7b9f71 100644 --- a/bfd/ecoff.c +++ b/bfd/ecoff.c @@ -1,5 +1,5 @@ /* Generic ECOFF (Extended-COFF) routines. - Copyright 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc. + Copyright 1990, 91, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. Original version by Per Bothner. Full support added by Ian Lance Taylor, ian@cygnus.com. @@ -209,6 +209,7 @@ _bfd_ecoff_set_arch_mach_hook (abfd, filehdr) break; case ALPHA_MAGIC: + case ALPHA_MAGIC_BSD: arch = bfd_arch_alpha; mach = 0; break; @@ -229,6 +230,7 @@ static int ecoff_get_magic (abfd) bfd *abfd; { + extern const bfd_target bsd_ecoffalpha_little_vec; int big, little; switch (bfd_get_arch (abfd)) @@ -257,7 +259,8 @@ ecoff_get_magic (abfd) return bfd_big_endian (abfd) ? big : little; case bfd_arch_alpha: - return ALPHA_MAGIC; + return (abfd->xvec == &bsd_ecoffalpha_little_vec + ? ALPHA_MAGIC_BSD : ALPHA_MAGIC); default: abort (); @@ -1443,11 +1446,11 @@ _bfd_ecoff_get_symbol_info (abfd, symbol, ret) /*ARGSUSED*/ boolean -_bfd_ecoff_bfd_is_local_label (abfd, symbol) +_bfd_ecoff_bfd_is_local_label_name (abfd, name) bfd *abfd; - asymbol *symbol; + const char *name; { - return symbol->name[0] == '$'; + return name[0] == '$'; } /* Print information about an ECOFF symbol. */ @@ -1856,10 +1859,10 @@ _bfd_ecoff_bfd_copy_private_bfd_data (ibfd, obfd) size_t c; boolean local; - /* This function is selected based on the input vector. We only - want to copy information over if the output BFD also uses ECOFF + /* We only want to copy information over if both BFD's use ECOFF format. */ - if (bfd_get_flavour (obfd) != bfd_target_ecoff_flavour) + if (bfd_get_flavour (ibfd) != bfd_target_ecoff_flavour + || bfd_get_flavour (obfd) != bfd_target_ecoff_flavour) return true; /* Copy the GP value and the register masks. */ @@ -2043,6 +2046,7 @@ ecoff_compute_section_file_positions (abfd) asection *current; unsigned int i; file_ptr old_sofar; + boolean rdata_in_text; boolean first_data, first_nonalloc; const bfd_vma round = ecoff_backend (abfd)->round; @@ -2063,6 +2067,27 @@ ecoff_compute_section_file_positions (abfd) qsort (sorted_hdrs, abfd->section_count, sizeof (asection *), ecoff_sort_hdrs); + /* Some versions of the OSF linker put the .rdata section in the + text segment, and some do not. */ + rdata_in_text = ecoff_backend (abfd)->rdata_in_text; + if (rdata_in_text) + { + for (i = 0; i < abfd->section_count; i++) + { + current = sorted_hdrs[i]; + if (strcmp (current->name, _RDATA) == 0) + break; + if ((current->flags & SEC_CODE) == 0 + && strcmp (current->name, _PDATA) != 0 + && strcmp (current->name, _RCONST) != 0) + { + rdata_in_text = false; + break; + } + } + } + ecoff_data (abfd)->rdata_in_text = rdata_in_text; + first_data = true; first_nonalloc = true; for (i = 0; i < abfd->section_count; i++) @@ -2090,7 +2115,7 @@ ecoff_compute_section_file_positions (abfd) && (abfd->flags & D_PAGED) != 0 && ! first_data && (current->flags & SEC_CODE) == 0 - && (! ecoff_backend (abfd)->rdata_in_text + && (! rdata_in_text || strcmp (current->name, _RDATA) != 0) && strcmp (current->name, _PDATA) != 0 && strcmp (current->name, _RCONST) != 0) @@ -2545,7 +2570,7 @@ _bfd_ecoff_write_object_contents (abfd) if ((section.s_flags & STYP_TEXT) != 0 || ((section.s_flags & STYP_RDATA) != 0 - && backend->rdata_in_text) + && ecoff_data (abfd)->rdata_in_text) || section.s_flags == STYP_PDATA || (section.s_flags & STYP_DYNAMIC) != 0 || (section.s_flags & STYP_LIBLIST) != 0 -- 2.30.2