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authorIan Lance Taylor <ian@airs.com>1995-09-12 16:23:25 +0000
committerIan Lance Taylor <ian@airs.com>1995-09-12 16:23:25 +0000
commitae115e5114deb0326333c80f7af9e689b2e7d01f (patch)
tree2c592646411768ec9a95b17070181cb5b068cf9c /bfd/bout.c
parentd8586e35caeb6ffea7058bce844023ec19140cc7 (diff)
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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.c98
1 files changed, 68 insertions, 30 deletions
diff --git a/bfd/bout.c b/bfd/bout.c
index 314d3b4..c730eb6 100644
--- a/bfd/bout.c
+++ b/bfd/bout.c
@@ -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 =
{