/* This module handles expression trees.
-Copyright (C) 1991, 1993, 1994, 1995 Free Software Foundation, Inc.
-Written by Steve Chamberlain of Cygnus Support (sac@cygnus.com).
+ Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 1999
+ Free Software Foundation, Inc.
+ Written by Steve Chamberlain of Cygnus Support (sac@cygnus.com).
This file is part of GLD, the Gnu Linker.
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GLD; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with GLD; see the file COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
/*
This module is in charge of working out the contents of expressions.
{ NEXT,"NEXT" },
{ SIZEOF,"SIZEOF" },
{ ADDR,"ADDR" },
+ { LOADADDR,"LOADADDR" },
{ MEMORY,"MEMORY" },
{ DEFINED,"DEFINED" },
{ TARGET_K,"TARGET" },
{ SEARCH_DIR,"SEARCH_DIR" },
{ MAP,"MAP" },
{ QUAD,"QUAD" },
+ { SQUAD,"SQUAD" },
{ LONG,"LONG" },
{ SHORT,"SHORT" },
{ BYTE,"BYTE" },
bfd_vma value;
{
etree_value_type new;
- new.valid = true;
+ new.valid_p = true;
new.section = abs_output_section;
new.value = value;
return new;
static void
check (os, name, op)
lang_output_section_statement_type *os;
- CONST char *name;
- CONST char *op;
+ const char *name;
+ const char *op;
{
- if (os == (lang_output_section_statement_type *)NULL) {
- einfo("%F%P: %s uses undefined section %s\n", op, name);
- }
- if (os->processed == false) {
- einfo("%F%P: %s forward reference of section %s\n",op, name);
- }
+ if (os == NULL)
+ einfo (_("%F%P: %s uses undefined section %s\n"), op, name);
+ if (! os->processed)
+ einfo (_("%F%P: %s forward reference of section %s\n"), op, name);
}
etree_type *
exp_intop (value)
bfd_vma value;
{
- etree_type *new = (etree_type *)stat_alloc((bfd_size_type)(sizeof(new->value)));
+ etree_type *new = (etree_type *) stat_alloc(sizeof(new->value));
new->type.node_code = INT;
new->value.value = value;
new->type.node_class = etree_value;
lang_output_section_statement_type *section;
{
etree_value_type new;
- new.valid = true;
+ new.valid_p = true;
new.value = value;
new.section = section;
return new;
lang_output_section_statement_type *section;
{
etree_value_type new;
- new.valid = true;
+ new.valid_p = true;
new.value = value;
new.section = section;
result = exp_fold_tree (tree->binary.lhs, current_section,
allocation_done, dot, dotp);
- if (result.valid)
+ if (result.valid_p)
{
etree_value_type other;
other = exp_fold_tree (tree->binary.rhs,
current_section,
allocation_done, dot,dotp) ;
- if (other.valid)
+ if (other.valid_p)
{
/* If the values are from different sections, or this is an
absolute expression, make both the source arguments
value from a relative value is meaningful, and is an
exception. */
if (current_section != abs_output_section
- && (result.section == abs_output_section
- || other.section == abs_output_section)
+ && (other.section == abs_output_section
+ || (result.section == abs_output_section
+ && tree->type.node_code == '+'))
&& (tree->type.node_code == '+'
|| tree->type.node_code == '-'))
{
/* If there is only one absolute term, make sure it is the
second one. */
- if (result.section == abs_output_section)
+ if (other.section != abs_output_section)
{
hold = result;
result = other;
{
case '%':
if (other.value == 0)
- einfo ("%F%S %% by zero\n");
+ einfo (_("%F%S %% by zero\n"));
result.value = ((bfd_signed_vma) result.value
% (bfd_signed_vma) other.value);
break;
case '/':
if (other.value == 0)
- einfo ("%F%S / by zero\n");
+ einfo (_("%F%S / by zero\n"));
result.value = ((bfd_signed_vma) result.value
/ (bfd_signed_vma) other.value);
break;
BOP(ANDAND,&&);
BOP(OROR,||);
+ case MAX_K:
+ if (result.value < other.value)
+ result = other;
+ break;
+
+ case MIN_K:
+ if (result.value > other.value)
+ result = other;
+ break;
+
default:
FAIL();
}
}
else
{
- result.valid = false;
+ result.valid_p = false;
}
}
invalid ()
{
etree_value_type new;
- new.valid = false;
+ new.valid_p = false;
return new;
}
}
else
{
- result.valid = false;
+ result.valid_p = false;
}
break;
case DEFINED:
if (allocation_done == lang_first_phase_enum)
- result.valid = false;
+ result.valid_p = false;
else
{
struct bfd_link_hash_entry *h;
- h = bfd_link_hash_lookup (link_info.hash, tree->name.name,
- false, false, true);
+ h = bfd_wrapped_link_hash_lookup (output_bfd, &link_info,
+ tree->name.name,
+ false, false, true);
result.value = (h != (struct bfd_link_hash_entry *) NULL
&& (h->type == bfd_link_hash_defined
+ || h->type == bfd_link_hash_defweak
|| h->type == bfd_link_hash_common));
result.section = 0;
- result.valid = true;
+ result.valid_p = true;
}
break;
case NAME:
- result.valid = false;
+ result.valid_p = false;
if (tree->name.name[0] == '.' && tree->name.name[1] == 0)
{
if (allocation_done != lang_first_phase_enum)
{
struct bfd_link_hash_entry *h;
- h = bfd_link_hash_lookup (link_info.hash, tree->name.name,
- false, false, true);
- if (h != NULL && h->type == bfd_link_hash_defined)
+ h = bfd_wrapped_link_hash_lookup (output_bfd, &link_info,
+ tree->name.name,
+ false, false, true);
+ if (h != NULL
+ && (h->type == bfd_link_hash_defined
+ || h->type == bfd_link_hash_defweak))
{
if (bfd_is_abs_section (h->u.def.section))
result = new_abs (h->u.def.value);
- else if (allocation_done == lang_final_phase_enum)
+ else if (allocation_done == lang_final_phase_enum
+ || allocation_done == lang_allocating_phase_enum)
{
- lang_output_section_statement_type *os;
-
- os = (lang_output_section_statement_lookup
- (h->u.def.section->output_section->name));
-
- /* FIXME: Is this correct if this section is being
- linked with -R? */
- result = new_rel ((h->u.def.value
- + h->u.def.section->output_offset),
- os);
+ asection *output_section;
+
+ output_section = h->u.def.section->output_section;
+ if (output_section == NULL)
+ einfo (_("%X%S: unresolvable symbol `%s' referenced in expression\n"),
+ tree->name.name);
+ else
+ {
+ lang_output_section_statement_type *os;
+
+ os = (lang_output_section_statement_lookup
+ (bfd_get_section_name (output_bfd,
+ output_section)));
+
+ /* FIXME: Is this correct if this section is
+ being linked with -R? */
+ result = new_rel ((h->u.def.value
+ + h->u.def.section->output_offset),
+ os);
+ }
}
}
else if (allocation_done == lang_final_phase_enum)
- einfo ("%F%S: undefined symbol `%s' referenced in expression\n",
+ einfo (_("%F%S: undefined symbol `%s' referenced in expression\n"),
tree->name.name);
}
break;
case ADDR:
+ if (allocation_done != lang_first_phase_enum)
+ {
+ lang_output_section_statement_type *os;
- if (allocation_done != lang_first_phase_enum) {
- lang_output_section_statement_type *os =
- lang_output_section_find(tree->name.name);
- check(os,tree->name.name,"ADDR");
- result = new_rel((bfd_vma)0, os);
- }
- else {
- result = invalid();
- }
+ os = lang_output_section_find (tree->name.name);
+ check (os, tree->name.name, "ADDR");
+ result = new_rel (0, os);
+ }
+ else
+ result = invalid ();
+ break;
+
+ case LOADADDR:
+ if (allocation_done != lang_first_phase_enum)
+ {
+ lang_output_section_statement_type *os;
+
+ os = lang_output_section_find (tree->name.name);
+ check (os, tree->name.name, "LOADADDR");
+ if (os->load_base == NULL)
+ result = new_rel (0, os);
+ else
+ result = exp_fold_tree_no_dot (os->load_base,
+ abs_output_section,
+ allocation_done);
+ }
+ else
+ result = invalid ();
break;
+
case SIZEOF:
- if(allocation_done != lang_first_phase_enum) {
- lang_output_section_statement_type *os =
- lang_output_section_find(tree->name.name);
- check(os,tree->name.name,"SIZEOF");
- result = new_abs((bfd_vma)(os->bfd_section->_raw_size));
- }
- else {
- result = invalid();
- }
+ if (allocation_done != lang_first_phase_enum)
+ {
+ lang_output_section_statement_type *os;
+
+ os = lang_output_section_find (tree->name.name);
+ check (os, tree->name.name, "SIZEOF");
+ result = new_abs (os->bfd_section->_raw_size);
+ }
+ else
+ result = invalid ();
break;
default:
{
etree_value_type result;
- if (tree == (etree_type *)NULL) {
- result.valid = false;
- }
- else {
- switch (tree->type.node_class)
+ if (tree == NULL)
{
- case etree_value:
- result = new_rel(tree->value.value, current_section);
+ result.valid_p = false;
+ return result;
+ }
+
+ switch (tree->type.node_class)
+ {
+ case etree_value:
+ result = new_rel (tree->value.value, current_section);
break;
+
case etree_rel:
if (allocation_done != lang_final_phase_enum)
- result.valid = false;
+ result.valid_p = false;
else
result = new_rel ((tree->rel.value
+ tree->rel.section->output_section->vma
+ tree->rel.section->output_offset),
current_section);
break;
- case etree_unary:
- result = exp_fold_tree(tree->unary.child,
- current_section,
- allocation_done, dot, dotp);
- if (result.valid == true)
- {
- switch(tree->type.node_code)
+
+ case etree_assert:
+ result = exp_fold_tree (tree->assert_s.child,
+ current_section,
+ allocation_done, dot, dotp);
+ if (result.valid_p)
{
- case ALIGN_K:
- if (allocation_done != lang_first_phase_enum) {
- result = new_rel_from_section(ALIGN_N(dot,
- result.value) ,
- current_section);
+ if (! result.value)
+ einfo ("%F%P: %s\n", tree->assert_s.message);
+ return result;
+ }
+ break;
- }
- else {
- result.valid = false;
- }
- break;
- case ABSOLUTE:
- if (allocation_done != lang_first_phase_enum)
- {
- if (current_section
- == (lang_output_section_statement_type*)NULL)
+ case etree_unary:
+ result = exp_fold_tree (tree->unary.child,
+ current_section,
+ allocation_done, dot, dotp);
+ if (result.valid_p)
+ {
+ switch (tree->type.node_code)
{
- /* Outside a section, so it's all ok */
+ case ALIGN_K:
+ if (allocation_done != lang_first_phase_enum)
+ result = new_rel_from_section (ALIGN_N (dot, result.value),
+ current_section);
+ else
+ result.valid_p = false;
+ break;
- }
- else {
- /* Inside a section, subtract the base of the section,
- so when it's added again (in an assignment), everything comes out fine
- */
- result.section = abs_output_section;
- result.value -= current_section->bfd_section->vma;
- result.valid = true;
- }
- }
- else
- {
- result.valid = false;
- }
+ case ABSOLUTE:
+ if (allocation_done != lang_first_phase_enum && result.valid_p)
+ {
+ result.value += result.section->bfd_section->vma;
+ result.section = abs_output_section;
+ }
+ else
+ result.valid_p = false;
+ break;
- break;
- case '~':
- make_abs(&result);
- result.value = ~result.value;
- break;
- case '!':
- make_abs(&result);
- result.value = !result.value;
- break;
- case '-':
- make_abs(&result);
- result.value = -result.value;
- break;
- case NEXT:
- if (allocation_done ==lang_allocating_phase_enum) {
- make_abs(&result);
- result.value = ALIGN_N(dot, result.value);
- }
- else {
- /* Return next place aligned to value */
- result.valid = false;
- }
- break;
- default:
- FAIL();
- }
- }
+ case '~':
+ make_abs (&result);
+ result.value = ~result.value;
+ break;
- break;
- case etree_trinary:
+ case '!':
+ make_abs (&result);
+ result.value = !result.value;
+ break;
- result = exp_fold_tree(tree->trinary.cond,
- current_section,
- allocation_done, dot, dotp);
- if (result.valid) {
- result = exp_fold_tree(result.value ?
- tree->trinary.lhs:tree->trinary.rhs,
- current_section,
- allocation_done, dot, dotp);
- }
+ case '-':
+ make_abs (&result);
+ result.value = -result.value;
+ break;
+
+ case NEXT:
+ /* Return next place aligned to value. */
+ if (allocation_done == lang_allocating_phase_enum)
+ {
+ make_abs (&result);
+ result.value = ALIGN_N (dot, result.value);
+ }
+ else
+ result.valid_p = false;
+ break;
+
+ default:
+ FAIL ();
+ break;
+ }
+ }
+ break;
+ case etree_trinary:
+ result = exp_fold_tree (tree->trinary.cond, current_section,
+ allocation_done, dot, dotp);
+ if (result.valid_p)
+ result = exp_fold_tree ((result.value
+ ? tree->trinary.lhs
+ : tree->trinary.rhs),
+ current_section,
+ allocation_done, dot, dotp);
break;
- case etree_binary:
- result = fold_binary(tree, current_section, allocation_done,
- dot, dotp);
+
+ case etree_binary:
+ result = fold_binary (tree, current_section, allocation_done,
+ dot, dotp);
break;
- case etree_assign:
- case etree_provide:
- if (tree->assign.dst[0] == '.' && tree->assign.dst[1] == 0) {
- /* Assignment to dot can only be done during allocation */
- if (tree->type.node_class == etree_provide)
- einfo ("%F%S can not PROVIDE assignment to location counter\n");
- if (allocation_done == lang_allocating_phase_enum) {
- result = exp_fold_tree(tree->assign.src,
- current_section,
- lang_allocating_phase_enum, dot, dotp);
- if (result.valid == false) {
- einfo("%F%S invalid assignment to location counter\n");
- }
- else {
- if (current_section ==
- (lang_output_section_statement_type *)NULL) {
- einfo("%F%S assignment to location counter invalid outside of SECTION\n");
- }
- else {
- bfd_vma nextdot =result.value +
- current_section->bfd_section->vma;
- if (nextdot < dot) {
- einfo("%F%S cannot move location counter backwards (from %V to %V)\n", dot, nextdot);
- }
- else {
- *dotp = nextdot;
- }
+
+ case etree_assign:
+ case etree_provide:
+ if (tree->assign.dst[0] == '.' && tree->assign.dst[1] == 0)
+ {
+ /* Assignment to dot can only be done during allocation */
+ if (tree->type.node_class == etree_provide)
+ einfo (_("%F%S can not PROVIDE assignment to location counter\n"));
+ if (allocation_done == lang_allocating_phase_enum
+ || (allocation_done == lang_final_phase_enum
+ && current_section == abs_output_section))
+ {
+ result = exp_fold_tree (tree->assign.src,
+ current_section,
+ lang_allocating_phase_enum, dot,
+ dotp);
+ if (! result.valid_p)
+ einfo (_("%F%S invalid assignment to location counter\n"));
+ else
+ {
+ if (current_section == NULL)
+ einfo (_("%F%S assignment to location counter invalid outside of SECTION\n"));
+ else
+ {
+ bfd_vma nextdot;
+
+ nextdot = (result.value
+ + current_section->bfd_section->vma);
+ if (nextdot < dot
+ && current_section != abs_output_section)
+ {
+ einfo (_("%F%S cannot move location counter backwards (from %V to %V)\n"),
+ dot, nextdot);
+ }
+ else
+ *dotp = nextdot;
+ }
+ }
}
- }
}
- }
else
{
result = exp_fold_tree (tree->assign.src,
current_section, allocation_done,
dot, dotp);
- if (result.valid)
+ if (result.valid_p)
{
+ boolean create;
struct bfd_link_hash_entry *h;
+ if (tree->type.node_class == etree_assign)
+ create = true;
+ else
+ create = false;
h = bfd_link_hash_lookup (link_info.hash, tree->assign.dst,
- (tree->type.node_class == etree_assign
- ? true : false),
- false, false);
+ create, false, false);
if (h == (struct bfd_link_hash_entry *) NULL)
{
if (tree->type.node_class == etree_assign)
- einfo ("%P%F:%s: hash creation failed\n",
+ einfo (_("%P%F:%s: hash creation failed\n"),
tree->assign.dst);
}
else if (tree->type.node_class == etree_provide
&& h->type != bfd_link_hash_common)
{
/* Do nothing. The symbol was defined by some
- object. */
+ object. */
}
else
{
h->u.def.section = result.section->bfd_section;
}
}
- }
+ }
break;
- case etree_name:
- result = fold_name(tree, current_section, allocation_done, dot);
+
+ case etree_name:
+ result = fold_name (tree, current_section, allocation_done, dot);
break;
- default:
- einfo("%F%S need more of these %d\n",tree->type.node_class );
+ default:
+ FAIL ();
+ break;
}
- }
return result;
}
-
static etree_value_type
exp_fold_tree_no_dot (tree, current_section, allocation_done)
etree_type *tree;
r = exp_fold_tree_no_dot(&value,
abs_output_section,
lang_first_phase_enum );
- if (r.valid)
+ if (r.valid_p)
{
return exp_intop(r.value);
}
- new = (etree_type *)stat_alloc((bfd_size_type)(sizeof(new->binary)));
+ new = (etree_type *) stat_alloc (sizeof (new->binary));
memcpy((char *)new, (char *)&value, sizeof(new->binary));
return new;
}
value.type.node_class = etree_trinary;
r= exp_fold_tree_no_dot(&value, (lang_output_section_statement_type
*)NULL,lang_first_phase_enum);
- if (r.valid) {
+ if (r.valid_p) {
return exp_intop(r.value);
}
- new = (etree_type *)stat_alloc((bfd_size_type)(sizeof(new->trinary)));
+ new = (etree_type *) stat_alloc (sizeof (new->trinary));
memcpy((char *)new,(char *) &value, sizeof(new->trinary));
return new;
}
value.unary.type.node_class = etree_unary;
r = exp_fold_tree_no_dot(&value,abs_output_section,
lang_first_phase_enum);
- if (r.valid) {
+ if (r.valid_p) {
return exp_intop(r.value);
}
- new = (etree_type *)stat_alloc((bfd_size_type)(sizeof(new->unary)));
+ new = (etree_type *) stat_alloc (sizeof (new->unary));
memcpy((char *)new, (char *)&value, sizeof(new->unary));
return new;
}
r = exp_fold_tree_no_dot(&value,
(lang_output_section_statement_type *)NULL,
lang_first_phase_enum);
- if (r.valid) {
+ if (r.valid_p) {
return exp_intop(r.value);
}
- new = (etree_type *)stat_alloc((bfd_size_type)(sizeof(new->name)));
+ new = (etree_type *) stat_alloc (sizeof (new->name));
memcpy((char *)new, (char *)&value, sizeof(new->name));
return new;
return exp_intop(result);
}
#endif
- new = (etree_type*)stat_alloc((bfd_size_type)(sizeof(new->assign)));
+ new = (etree_type*) stat_alloc (sizeof (new->assign));
memcpy((char *)new, (char *)&value, sizeof(new->assign));
return new;
}
return n;
}
+/* Handle ASSERT. */
+
+etree_type *
+exp_assert (exp, message)
+ etree_type *exp;
+ const char *message;
+{
+ etree_type *n;
+
+ n = (etree_type *) stat_alloc (sizeof (n->assert_s));
+ n->assert_s.type.node_code = '!';
+ n->assert_s.type.node_class = etree_assert;
+ n->assert_s.child = exp;
+ n->assert_s.message = message;
+ return n;
+}
+
void
exp_print_tree (tree)
etree_type *tree;
{
switch (tree->type.node_class) {
case etree_value:
- print_address(tree->value.value);
+ minfo ("0x%v", tree->value.value);
return;
case etree_rel:
if (tree->rel.section->owner != NULL)
- fprintf (config.map_file, "%s:",
- bfd_get_filename (tree->rel.section->owner));
- fprintf (config.map_file, "%s+", tree->rel.section->name);
- print_address (tree->rel.value);
+ minfo ("%B:", tree->rel.section->owner);
+ minfo ("%s+0x%v", tree->rel.section->name, tree->rel.value);
return;
case etree_assign:
#if 0
fprintf(config.map_file,"%s (UNDEFINED)",tree->assign.dst->name);
}
#endif
- fprintf(config.map_file,"%s ",tree->assign.dst);
+ fprintf(config.map_file,"%s",tree->assign.dst);
exp_print_token(tree->type.node_code);
exp_print_tree(tree->assign.src);
break;
exp_print_token(tree->unary.type.node_code);
if (tree->unary.child)
{
-
fprintf(config.map_file,"(");
exp_print_tree(tree->unary.child);
fprintf(config.map_file,")");
}
break;
+
+ case etree_assert:
+ fprintf (config.map_file, "ASSERT (");
+ exp_print_tree (tree->assert_s.child);
+ fprintf (config.map_file, ", %s)", tree->assert_s.message);
+ break;
+
case etree_undef:
fprintf(config.map_file,"????????");
break;
}
}
-
-
-
bfd_vma
exp_get_vma (tree, def, name, allocation_done)
etree_type *tree;
- bfd_vma def;
+ bfd_vma def;
char *name;
lang_phase_type allocation_done;
{
etree_value_type r;
- if (tree != (etree_type *)NULL) {
- r = exp_fold_tree_no_dot(tree,
- abs_output_section,
- allocation_done);
- if (r.valid == false && name) {
- einfo("%F%S nonconstant expression for %s\n",name);
+ if (tree != NULL)
+ {
+ r = exp_fold_tree_no_dot (tree, abs_output_section, allocation_done);
+ if (! r.valid_p && name != NULL)
+ einfo (_("%F%S nonconstant expression for %s\n"), name);
+ return r.value;
}
- return r.value;
- }
- else {
+ else
return def;
- }
}
int
}
-int
+bfd_vma
exp_get_abs_int (tree, def, name, allocation_done)
etree_type *tree;
- int def;
+ int def ATTRIBUTE_UNUSED;
char *name;
lang_phase_type allocation_done;
{
etree_value_type res;
res = exp_fold_tree_no_dot (tree, abs_output_section, allocation_done);
- if (res.valid)
+ if (res.valid_p)
{
res.value += res.section->bfd_section->vma;
}
else {
- einfo ("%F%S non constant expression for %s\n",name);
+ einfo (_("%F%S non constant expression for %s\n"),name);
}
return res.value;
}
projects / deliverable / binutils-gdb.git / blobdiff