/* This module handles expression trees.
-Copyright (C) 1991, 1993, 1994, 1995 Free Software Foundation, Inc.
+Copyright (C) 1991, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
Written by Steve Chamberlain of Cygnus Support (sac@cygnus.com).
This file is part of GLD, the Gnu Linker.
{ NEXT,"NEXT" },
{ SIZEOF,"SIZEOF" },
{ ADDR,"ADDR" },
+ { LOADADDR,"LOADADDR" },
{ MEMORY,"MEMORY" },
{ DEFINED,"DEFINED" },
{ TARGET_K,"TARGET" },
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 *
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)
+ {
+ result.valid = false;
+ return result;
+ }
+
+ switch (tree->type.node_class)
{
- case etree_value:
- result = new_rel(tree->value.value, current_section);
+ 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;
+ 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 ALIGN_K:
- if (allocation_done != lang_first_phase_enum) {
- result = new_rel_from_section(ALIGN_N(dot,
- result.value) ,
- current_section);
- }
- else {
- result.valid = false;
- }
- break;
- case ABSOLUTE:
- if (allocation_done != lang_first_phase_enum && result.valid)
- {
- result.value += result.section->bfd_section->vma;
- result.section = abs_output_section;
- }
- else
+ case etree_unary:
+ result = exp_fold_tree (tree->unary.child,
+ current_section,
+ allocation_done, dot, dotp);
+ if (result.valid)
+ {
+ switch (tree->type.node_code)
{
- result.valid = false;
+ 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 = false;
+ break;
+
+ case ABSOLUTE:
+ if (allocation_done != lang_first_phase_enum && result.valid)
+ {
+ result.value += result.section->bfd_section->vma;
+ result.section = abs_output_section;
+ }
+ else
+ result.valid = false;
+ 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:
+ /* 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 = false;
+ break;
+
+ default:
+ FAIL ();
+ 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();
}
- }
-
break;
- case etree_trinary:
-
- 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 etree_trinary:
+ 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);
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
- || (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 == 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 && current_section != abs_output_section) {
- 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)
+ 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,
dot, dotp);
if (result.valid)
{
+ 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)
&& 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;
{
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;
}
}
-
-
-
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 && name != NULL)
+ einfo ("%F%S nonconstant expression for %s\n", name);
+ return r.value;
}
- return r.value;
- }
- else {
+ else
return def;
- }
}
int
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