From ec099b4b2564a6a3b1f8ffc0ffc3b5d0cc00d2b4 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Fri, 25 Mar 1994 22:13:02 +0000 Subject: [PATCH] * aoutx.h (NAME(aout,find_nearest_line)): The caller expects functionname_ptr to be set to a symbol name, so prepend symbol_leading_char. --- bfd/ChangeLog | 6 ++ bfd/aoutx.h | 267 +++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 271 insertions(+), 2 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 0bbb37a9890..528f826a79f 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +Fri Mar 25 17:10:45 1994 Ian Lance Taylor (ian@tweedledumb.cygnus.com) + + * aoutx.h (NAME(aout,find_nearest_line)): The caller expects + functionname_ptr to be set to a symbol name, so prepend + symbol_leading_char. + Thu Mar 24 11:33:46 1994 Steve Chamberlain (sac@jonny.cygnus.com) * coff-h8300.c (h8300_reloc16_extra_cases): Add relaxing info diff --git a/bfd/aoutx.h b/bfd/aoutx.h index 674cf598bcf..b6c7c80104a 100644 --- a/bfd/aoutx.h +++ b/bfd/aoutx.h @@ -220,6 +220,9 @@ NAME(aout,reloc_type_lookup) (abfd,code) case 32: code = BFD_RELOC_32; break; + case 64: + code = BFD_RELOC_64; + break; } if (ext) switch (code) @@ -229,6 +232,8 @@ NAME(aout,reloc_type_lookup) (abfd,code) EXT (BFD_RELOC_LO10, 11); EXT (BFD_RELOC_32_PCREL_S2, 6); EXT (BFD_RELOC_SPARC_WDISP22, 7); + EXT (BFD_RELOC_SPARC13, 10); + EXT (BFD_RELOC_SPARC_BASE13, 15); default: return (CONST struct reloc_howto_struct *) 0; } else @@ -2737,7 +2742,18 @@ NAME(aout,find_nearest_line) if (*line_ptr && func) { CONST char *function = func->name; char *p; - strncpy(buffer, function, sizeof(buffer)-1); + + /* The caller expects a symbol name. We actually a + function name, without the leading underscore. Put the + underscore back in, so that the caller gets a symbol + name. */ + if (bfd_get_symbol_leading_char (abfd) == '\0') + strncpy (buffer, function, sizeof (buffer) - 1); + else + { + buffer[0] = bfd_get_symbol_leading_char (abfd); + strncpy (buffer + 1, function, sizeof (buffer) - 2); + } buffer[sizeof(buffer)-1] = 0; /* Have to remove : stuff */ p = strchr(buffer,':'); @@ -3317,7 +3333,7 @@ aout_link_add_symbols (abfd, info) if (! (_bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, value, string, copy, false, - ARCH_SIZE, (struct bfd_link_hash_entry **) sym_hash))) + (struct bfd_link_hash_entry **) sym_hash))) return false; if (type == (N_INDR | N_EXT) || type == N_WARNING) @@ -3364,6 +3380,9 @@ static boolean aout_link_input_section_ext bfd_size_type rel_size, bfd_byte *contents, int *symbol_map)); static INLINE asection *aout_reloc_index_to_section PARAMS ((bfd *, int)); +static boolean aout_link_reloc_link_order + PARAMS ((struct aout_final_link_info *, asection *, + struct bfd_link_order *)); /* Do the final link step. This is called on the output BFD. The INFO structure should point to a list of BFDs linked through the @@ -3384,6 +3403,7 @@ NAME(aout,final_link) (abfd, info, callback) file_ptr text_end; register struct bfd_link_order *p; asection *o; + boolean have_link_order_relocs; aout_info.info = info; aout_info.output_bfd = abfd; @@ -3416,7 +3436,13 @@ NAME(aout,final_link) (abfd, info, callback) abort (); } } + trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd) + ->link_order_head) + * obj_reloc_entry_size (abfd)); exec_hdr (abfd)->a_trsize = trsize; + drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd) + ->link_order_head) + * obj_reloc_entry_size (abfd)); exec_hdr (abfd)->a_drsize = drsize; } @@ -3472,6 +3498,7 @@ NAME(aout,final_link) (abfd, info, callback) for (sub = info->input_bfds; sub != (bfd *) NULL; sub = sub->link_next) sub->output_has_begun = false; + have_link_order_relocs = false; for (o = abfd->sections; o != (asection *) NULL; o = o->next) { for (p = o->link_order_head; @@ -3492,6 +3519,12 @@ NAME(aout,final_link) (abfd, info, callback) input_bfd->output_has_begun = true; } } + else if (p->type == bfd_section_reloc_link_order + || p->type == bfd_symbol_reloc_link_order) + { + /* These are handled below. */ + have_link_order_relocs = true; + } else { if (! _bfd_default_link_order (abfd, info, o, p)) @@ -3505,6 +3538,28 @@ NAME(aout,final_link) (abfd, info, callback) aout_link_write_other_symbol, (PTR) &aout_info); + /* Now handle any relocs we were asked to create by the linker. + These did not come from any input file. We must do these after + we have written out all the symbols, so that we know the symbol + indices to use. */ + if (have_link_order_relocs) + { + for (o = abfd->sections; o != (asection *) NULL; o = o->next) + { + for (p = o->link_order_head; + p != (struct bfd_link_order *) NULL; + p = p->next) + { + if (p->type == bfd_section_reloc_link_order + || p->type == bfd_symbol_reloc_link_order) + { + if (! aout_link_reloc_link_order (&aout_info, o, p)) + return false; + } + } + } + } + /* Update the header information. */ abfd->symcount = obj_aout_external_sym_count (abfd); exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE; @@ -4683,3 +4738,211 @@ aout_link_input_section_ext (finfo, input_bfd, input_section, relocs, return true; } + +/* Handle a link order which is supposed to generate a reloc. */ + +static boolean +aout_link_reloc_link_order (finfo, o, p) + struct aout_final_link_info *finfo; + asection *o; + struct bfd_link_order *p; +{ + struct bfd_link_order_reloc *pr; + int r_index; + int r_extern; + const reloc_howto_type *howto; + file_ptr *reloff_ptr; + struct reloc_std_external srel; + struct reloc_ext_external erel; + PTR rel_ptr; + + pr = p->u.reloc.p; + + if (p->type == bfd_section_reloc_link_order) + { + r_extern = 0; + if (pr->u.section == &bfd_abs_section) + r_index = N_ABS | N_EXT; + else + { + BFD_ASSERT (pr->u.section->owner == finfo->output_bfd); + r_index = pr->u.section->target_index; + } + } + else + { + struct aout_link_hash_entry *h; + + BFD_ASSERT (p->type == bfd_symbol_reloc_link_order); + r_extern = 1; + h = aout_link_hash_lookup (aout_hash_table (finfo->info), + pr->u.name, false, false, true); + if (h != (struct aout_link_hash_entry *) NULL + && h->indx == -1) + r_index = h->indx; + else + { + if (! ((*finfo->info->callbacks->unattached_reloc) + (finfo->info, pr->u.name, (bfd *) NULL, + (asection *) NULL, (bfd_vma) 0))) + return false; + r_index = 0; + } + } + + howto = bfd_reloc_type_lookup (finfo->output_bfd, pr->reloc); + if (howto == (const reloc_howto_type *) NULL) + { + bfd_set_error (bfd_error_bad_value); + return false; + } + + if (o == obj_textsec (finfo->output_bfd)) + reloff_ptr = &finfo->treloff; + else if (o == obj_datasec (finfo->output_bfd)) + reloff_ptr = &finfo->dreloff; + else + abort (); + + if (obj_reloc_entry_size (finfo->output_bfd) == RELOC_STD_SIZE) + { + int r_pcrel; + int r_baserel; + int r_jmptable; + int r_relative; + int r_length; + + r_pcrel = howto->pc_relative; + r_baserel = (howto->type & 8) != 0; + r_jmptable = 0; + r_relative = 0; + r_length = howto->size; + + PUT_WORD (finfo->output_bfd, p->offset, srel.r_address); + if (finfo->output_bfd->xvec->header_byteorder_big_p) + { + srel.r_index[0] = r_index >> 16; + srel.r_index[1] = r_index >> 8; + srel.r_index[2] = r_index; + srel.r_type[0] = + ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0) + | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0) + | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0) + | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0) + | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0) + | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG)); + } + else + { + srel.r_index[2] = r_index >> 16; + srel.r_index[1] = r_index >> 8; + srel.r_index[0] = r_index; + srel.r_type[0] = + ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0) + | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0) + | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0) + | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0) + | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0) + | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE)); + } + + rel_ptr = (PTR) &srel; + + /* We have to write the addend into the object file, since + standard a.out relocs are in place. It would be more + reliable if we had the current contents of the file here, + rather than assuming zeroes, but we can't read the file since + it was opened using bfd_openw. */ + if (pr->addend != 0) + { + bfd_size_type size; + bfd_reloc_status_type r; + bfd_byte *buf; + boolean ok; + + size = bfd_get_reloc_size (howto); + buf = (bfd_byte*) bfd_zmalloc (size); + if (buf == (bfd_byte *) NULL) + { + bfd_set_error (bfd_error_no_memory); + return false; + } + r = _bfd_relocate_contents (howto, finfo->output_bfd, + pr->addend, buf); + switch (r) + { + case bfd_reloc_ok: + break; + default: + case bfd_reloc_outofrange: + abort (); + case bfd_reloc_overflow: + if (! ((*finfo->info->callbacks->reloc_overflow) + (finfo->info, + (p->type == bfd_section_reloc_link_order + ? bfd_section_name (finfo->output_bfd, + pr->u.section) + : pr->u.name), + howto->name, pr->addend, (bfd *) NULL, + (asection *) NULL, (bfd_vma) 0))) + { + free (buf); + return false; + } + break; + } + ok = bfd_set_section_contents (finfo->output_bfd, o, + (PTR) buf, + (file_ptr) p->offset, + size); + free (buf); + if (! ok) + return false; + } + } + else + { + PUT_WORD (finfo->output_bfd, p->offset, erel.r_address); + + if (finfo->output_bfd->xvec->header_byteorder_big_p) + { + erel.r_index[0] = r_index >> 16; + erel.r_index[1] = r_index >> 8; + erel.r_index[2] = r_index; + erel.r_type[0] = + ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0) + | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG)); + } + else + { + erel.r_index[2] = r_index >> 16; + erel.r_index[1] = r_index >> 8; + erel.r_index[0] = r_index; + erel.r_type[0] = + (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0) + | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE); + } + + PUT_WORD (finfo->output_bfd, pr->addend, erel.r_addend); + + rel_ptr = (PTR) &erel; + } + + if (bfd_seek (finfo->output_bfd, *reloff_ptr, SEEK_SET) != 0 + || (bfd_write (rel_ptr, (bfd_size_type) 1, + obj_reloc_entry_size (finfo->output_bfd), + finfo->output_bfd) + != obj_reloc_entry_size (finfo->output_bfd))) + return false; + + *reloff_ptr += obj_reloc_entry_size (finfo->output_bfd); + + /* Assert that the relocs have not run into the symbols, and that n + the text relocs have not run into the data relocs. */ + BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (finfo->output_bfd) + && (reloff_ptr != &finfo->treloff + || (*reloff_ptr + <= obj_datasec (finfo->output_bfd)->rel_filepos))); + + return true; +} -- 2.30.2