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author | Ian Lance Taylor <ian@airs.com> | 1995-09-12 16:23:25 +0000 |
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committer | Ian Lance Taylor <ian@airs.com> | 1995-09-12 16:23:25 +0000 |
commit | ae115e5114deb0326333c80f7af9e689b2e7d01f (patch) | |
tree | 2c592646411768ec9a95b17070181cb5b068cf9c /bfd/bout.c | |
parent | d8586e35caeb6ffea7058bce844023ec19140cc7 (diff) | |
download | gdb-ae115e5114deb0326333c80f7af9e689b2e7d01f.zip gdb-ae115e5114deb0326333c80f7af9e689b2e7d01f.tar.gz gdb-ae115e5114deb0326333c80f7af9e689b2e7d01f.tar.bz2 |
Extensive minor changes to avoid various gcc warnings. Also:
* Makefile.in (BFD32_BACKENDS): Remove coff-arm.o.
* archures.c (bfd_arch_info_type): Change mach field from long to
unsigned long.
(bfd_lookup_arch): Change machine parameter from long to unsigned
long.
Diffstat (limited to 'bfd/bout.c')
-rw-r--r-- | bfd/bout.c | 98 |
1 files changed, 68 insertions, 30 deletions
@@ -1,5 +1,5 @@ /* BFD back-end for Intel 960 b.out binaries. - Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc. + Copyright 1990, 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. Written by Cygnus Support. This file is part of BFD, the Binary File Descriptor library. @@ -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. */ #include "bfd.h" @@ -41,7 +41,7 @@ static bfd_reloc_status_type calljx_callback asection *)); static bfd_reloc_status_type callj_callback PARAMS ((bfd *, struct bfd_link_info *, arelent *, PTR data, - unsigned int srcidx, unsigned int dstidx, asection *)); + unsigned int srcidx, unsigned int dstidx, asection *, boolean)); static bfd_vma get_value PARAMS ((arelent *, struct bfd_link_info *, asection *)); static int abs32code PARAMS ((bfd *, asection *, arelent *, @@ -330,7 +330,7 @@ calljx_callback (abfd, link_info, reloc_entry, src, dst, input_section) /* Magic to turn call into callj */ static bfd_reloc_status_type callj_callback (abfd, link_info, reloc_entry, data, srcidx, dstidx, - input_section) + input_section, shrinking) bfd *abfd; struct bfd_link_info *link_info; arelent *reloc_entry; @@ -338,6 +338,7 @@ callj_callback (abfd, link_info, reloc_entry, data, srcidx, dstidx, unsigned int srcidx; unsigned int dstidx; asection *input_section; + boolean shrinking; { int word = bfd_get_32 (abfd, (bfd_byte *) data + srcidx); asymbol *symbol_in = *(reloc_entry->sym_ptr_ptr); @@ -368,12 +369,21 @@ callj_callback (abfd, link_info, reloc_entry, data, srcidx, dstidx, - output_addr (input_section)) & BAL_MASK); } + else if ((symbol->symbol.flags & BSF_SECTION_SYM) != 0) + { + /* A callj against a symbol in the same section is a fully + resolved relative call. We don't need to do anything here. + If the symbol is not in the same section, I'm not sure what + to do; fortunately, this case will probably never arise. */ + BFD_ASSERT (! shrinking); + BFD_ASSERT (symbol->symbol.section == input_section); + } else { word = CALL | (((word & BAL_MASK) + value + reloc_entry->addend - - dstidx + - (shrinking ? dstidx : 0) - output_addr (input_section)) & BAL_MASK); } @@ -425,7 +435,7 @@ static reloc_howto_type howto_done_align_table[] = { HOWTO (ALIGNDONE, 0xf, 0xf, 0, false, 0, complain_overflow_dont, 0, "donealign128", false, 0, 0, false), }; -static const reloc_howto_type * +static reloc_howto_type * b_out_bfd_reloc_type_lookup (abfd, code) bfd *abfd; bfd_reloc_code_real_type code; @@ -479,6 +489,11 @@ b_out_slurp_reloc_table (abfd, asect, symbols) goto doit; } + if (asect == obj_bsssec (abfd)) { + reloc_size = 0; + goto doit; + } + bfd_set_error (bfd_error_invalid_operation); return false; @@ -494,14 +509,16 @@ b_out_slurp_reloc_table (abfd, asect, symbols) } reloc_cache = (arelent *) malloc ((count+1) * sizeof (arelent)); if (!reloc_cache) { - free ((char*)relocs); + if (relocs != NULL) + free ((char*)relocs); bfd_set_error (bfd_error_no_memory); return false; } if (bfd_read ((PTR) relocs, 1, reloc_size, abfd) != reloc_size) { free (reloc_cache); - free (relocs); + if (relocs != NULL) + free (relocs); return false; } @@ -593,7 +610,7 @@ b_out_slurp_reloc_table (abfd, asect, symbols) if (raw[7] & pcrel_mask) { cache_ptr->howto = &howto_align_table[(raw[7] >> length_shift) & 3]; - cache_ptr->sym_ptr_ptr = &bfd_abs_symbol; + cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; } else { @@ -657,7 +674,8 @@ b_out_slurp_reloc_table (abfd, asect, symbols) } - free (relocs); + if (relocs != NULL) + free (relocs); asect->relocation = reloc_cache; asect->reloc_count = count; @@ -758,11 +776,11 @@ b_out_squirt_out_relocs (abfd, section) if (r_idx != 0) /* already mucked with r_extern, r_idx */; else if (bfd_is_com_section (output_section) - || output_section == &bfd_abs_section - || output_section == &bfd_und_section) + || bfd_is_abs_section (output_section) + || bfd_is_und_section (output_section)) { - if (bfd_abs_section.symbol == sym) + if (bfd_abs_section_ptr->symbol == sym) { /* Whoops, looked like an abs symbol, but is really an offset from the abs section */ @@ -814,17 +832,30 @@ b_out_canonicalize_reloc (abfd, section, relptr, symbols) arelent **relptr; asymbol **symbols; { - arelent *tblptr = section->relocation; - unsigned int count = 0; + arelent *tblptr; + unsigned int count; - if (!(tblptr || b_out_slurp_reloc_table (abfd, section, symbols))) - return -1; - tblptr = section->relocation; + if ((section->flags & SEC_CONSTRUCTOR) != 0) + { + arelent_chain *chain = section->constructor_chain; + for (count = 0; count < section->reloc_count; count++) + { + *relptr++ = &chain->relent; + chain = chain->next; + } + } + else + { + if (section->relocation == NULL + && ! b_out_slurp_reloc_table (abfd, section, symbols)) + return -1; - for (; count++ < section->reloc_count;) - *relptr++ = tblptr++; + tblptr = section->relocation; + for (count = 0; count++ < section->reloc_count;) + *relptr++ = tblptr++; + } - *relptr = 0; + *relptr = NULL; return section->reloc_count; } @@ -839,6 +870,9 @@ b_out_get_reloc_upper_bound (abfd, asect) return -1; } + if (asect->flags & SEC_CONSTRUCTOR) + return sizeof (arelent *) * (asect->reloc_count + 1); + if (asect == obj_datasec (abfd)) return (sizeof (arelent *) * ((exec_hdr(abfd)->a_drsize / sizeof (struct relocation_info)) @@ -859,10 +893,10 @@ b_out_get_reloc_upper_bound (abfd, asect) static boolean b_out_set_section_contents (abfd, section, location, offset, count) bfd *abfd; - sec_ptr section; - unsigned char *location; + asection *section; + PTR location; file_ptr offset; - int count; + bfd_size_type count; { if (abfd->output_has_begun == false) { /* set by bfd.c handler */ @@ -935,7 +969,7 @@ get_value (reloc, link_info, input_section) base of the section. To relocate, we find where the section will live in the output and add that in */ - if (symbol->section == &bfd_und_section) + if (bfd_is_und_section (symbol->section)) { struct bfd_link_hash_entry *h; @@ -947,7 +981,8 @@ get_value (reloc, link_info, input_section) h = bfd_link_hash_lookup (link_info->hash, bfd_asymbol_name (symbol), false, false, true); if (h != (struct bfd_link_hash_entry *) NULL - && h->type == bfd_link_hash_defined) + && (h->type == bfd_link_hash_defined + || h->type == bfd_link_hash_defweak)) value = h->u.def.value + output_addr (h->u.def.section); else if (h != (struct bfd_link_hash_entry *) NULL && h->type == bfd_link_hash_common) @@ -995,11 +1030,11 @@ perform_slip (abfd, slip, input_section, value) if (p->value > value) { p->value -=slip; - if (p->udata != NULL) + if (p->udata.p != NULL) { struct generic_link_hash_entry *h; - h = (struct generic_link_hash_entry *) p->udata; + h = (struct generic_link_hash_entry *) p->udata.p; BFD_ASSERT (h->root.type == bfd_link_hash_defined); h->root.u.def.value -= slip; BFD_ASSERT (h->root.u.def.value == p->value); @@ -1275,7 +1310,7 @@ b_out_bfd_get_relocated_section_contents (in_abfd, link_info, link_order, break; case CALLJ: callj_callback (in_abfd, link_info, reloc, data, src_address, - dst_address, input_section); + dst_address, input_section, false); src_address+=4; dst_address+=4; break; @@ -1290,7 +1325,8 @@ b_out_bfd_get_relocated_section_contents (in_abfd, link_info, link_order, /* This used to be a callx, but we've found out that a callj will reach, so do the right thing. */ callj_callback (in_abfd, link_info, reloc, data, - src_address + 4, dst_address, input_section); + src_address + 4, dst_address, input_section, + true); dst_address+=4; src_address+=8; break; @@ -1358,6 +1394,8 @@ b_out_bfd_get_relocated_section_contents (in_abfd, link_info, link_order, #define b_out_bfd_link_hash_table_create _bfd_generic_link_hash_table_create #define b_out_bfd_link_add_symbols _bfd_generic_link_add_symbols #define b_out_bfd_final_link _bfd_generic_final_link +#define b_out_bfd_link_split_section _bfd_generic_link_split_section + const bfd_target b_out_vec_big_host = { |