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-rw-r--r--ld/ldexp.c985
1 files changed, 985 insertions, 0 deletions
diff --git a/ld/ldexp.c b/ld/ldexp.c
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index 0000000..6c9d726
--- /dev/null
+++ b/ld/ldexp.c
@@ -0,0 +1,985 @@
+/* This module handles expression trees.
+Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 1998 Free Software Foundation, Inc.
+Written by Steve Chamberlain of Cygnus Support (sac@cygnus.com).
+
+This file is part of GLD, the Gnu Linker.
+
+GLD is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GLD is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+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, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
+
+/*
+This module is in charge of working out the contents of expressions.
+
+It has to keep track of the relative/absness of a symbol etc. This is
+done by keeping all values in a struct (an etree_value_type) which
+contains a value, a section to which it is relative and a valid bit.
+
+*/
+
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "bfdlink.h"
+
+#include "ld.h"
+#include "ldmain.h"
+#include "ldmisc.h"
+#include "ldexp.h"
+#include "ldgram.h"
+#include "ldlang.h"
+
+static void exp_print_token PARAMS ((token_code_type code));
+static void make_abs PARAMS ((etree_value_type *ptr));
+static etree_value_type new_abs PARAMS ((bfd_vma value));
+static void check PARAMS ((lang_output_section_statement_type *os,
+ const char *name, const char *op));
+static etree_value_type new_rel
+ PARAMS ((bfd_vma value, lang_output_section_statement_type *section));
+static etree_value_type new_rel_from_section
+ PARAMS ((bfd_vma value, lang_output_section_statement_type *section));
+static etree_value_type fold_binary
+ PARAMS ((etree_type *tree,
+ lang_output_section_statement_type *current_section,
+ lang_phase_type allocation_done,
+ bfd_vma dot, bfd_vma *dotp));
+static etree_value_type fold_name
+ PARAMS ((etree_type *tree,
+ lang_output_section_statement_type *current_section,
+ lang_phase_type allocation_done,
+ bfd_vma dot));
+static etree_value_type exp_fold_tree_no_dot
+ PARAMS ((etree_type *tree,
+ lang_output_section_statement_type *current_section,
+ lang_phase_type allocation_done));
+
+static void
+exp_print_token (code)
+ token_code_type code;
+{
+ static CONST struct
+ {
+ token_code_type code;
+ char *name;
+ } table[] =
+ {
+ { INT, "int" },
+ { REL, "relocateable" },
+ { NAME,"NAME" },
+ { PLUSEQ,"+=" },
+ { MINUSEQ,"-=" },
+ { MULTEQ,"*=" },
+ { DIVEQ,"/=" },
+ { LSHIFTEQ,"<<=" },
+ { RSHIFTEQ,">>=" },
+ { ANDEQ,"&=" },
+ { OREQ,"|=" },
+ { OROR,"||" },
+ { ANDAND,"&&" },
+ { EQ,"==" },
+ { NE,"!=" },
+ { LE,"<=" },
+ { GE,">=" },
+ { LSHIFT,"<<" },
+ { RSHIFT,">>=" },
+ { ALIGN_K,"ALIGN" },
+ { BLOCK,"BLOCK" },
+ { SECTIONS,"SECTIONS" },
+ { SIZEOF_HEADERS,"SIZEOF_HEADERS" },
+ { 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" },
+ { ENTRY,"ENTRY" },
+ { 0,(char *)NULL }
+ };
+ unsigned int idx;
+
+ for (idx = 0; table[idx].name != (char*)NULL; idx++) {
+ if (table[idx].code == code) {
+ fprintf(config.map_file, "%s", table[idx].name);
+ return;
+ }
+ }
+ /* Not in table, just print it alone */
+ fprintf(config.map_file, "%c",code);
+}
+
+static void
+make_abs (ptr)
+ etree_value_type *ptr;
+{
+ asection *s = ptr->section->bfd_section;
+ ptr->value += s->vma;
+ ptr->section = abs_output_section;
+}
+
+static etree_value_type
+new_abs (value)
+ bfd_vma value;
+{
+ etree_value_type new;
+ 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;
+{
+ 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(sizeof(new->value));
+ new->type.node_code = INT;
+ new->value.value = value;
+ new->type.node_class = etree_value;
+ return new;
+
+}
+
+/* Build an expression representing an unnamed relocateable value. */
+
+etree_type *
+exp_relop (section, value)
+ asection *section;
+ bfd_vma value;
+{
+ etree_type *new = (etree_type *) stat_alloc (sizeof (new->rel));
+ new->type.node_code = REL;
+ new->type.node_class = etree_rel;
+ new->rel.section = section;
+ new->rel.value = value;
+ return new;
+}
+
+static etree_value_type
+new_rel (value, section)
+ bfd_vma value;
+ lang_output_section_statement_type *section;
+{
+ etree_value_type new;
+ new.valid_p = true;
+ new.value = value;
+ new.section = section;
+ return new;
+}
+
+static etree_value_type
+new_rel_from_section (value, section)
+ bfd_vma value;
+ lang_output_section_statement_type *section;
+{
+ etree_value_type new;
+ new.valid_p = true;
+ new.value = value;
+ new.section = section;
+
+ new.value -= section->bfd_section->vma;
+
+ return new;
+}
+
+static etree_value_type
+fold_binary (tree, current_section, allocation_done, dot, dotp)
+ etree_type *tree;
+ lang_output_section_statement_type *current_section;
+ lang_phase_type allocation_done;
+ bfd_vma dot;
+ bfd_vma *dotp;
+{
+ etree_value_type result;
+
+ result = exp_fold_tree (tree->binary.lhs, current_section,
+ allocation_done, dot, dotp);
+ if (result.valid_p)
+ {
+ etree_value_type other;
+
+ other = exp_fold_tree (tree->binary.rhs,
+ current_section,
+ allocation_done, dot,dotp) ;
+ if (other.valid_p)
+ {
+ /* If the values are from different sections, or this is an
+ absolute expression, make both the source arguments
+ absolute. However, adding or subtracting an absolute
+ value from a relative value is meaningful, and is an
+ exception. */
+ if (current_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 == '-'))
+ {
+ etree_value_type hold;
+
+ /* If there is only one absolute term, make sure it is the
+ second one. */
+ if (other.section != abs_output_section)
+ {
+ hold = result;
+ result = other;
+ other = hold;
+ }
+ }
+ else if (result.section != other.section
+ || current_section == abs_output_section)
+ {
+ make_abs(&result);
+ make_abs(&other);
+ }
+
+ switch (tree->type.node_code)
+ {
+ case '%':
+ if (other.value == 0)
+ 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"));
+ result.value = ((bfd_signed_vma) result.value
+ / (bfd_signed_vma) other.value);
+ break;
+
+#define BOP(x,y) case x : result.value = result.value y other.value; break;
+ BOP('+',+);
+ BOP('*',*);
+ BOP('-',-);
+ BOP(LSHIFT,<<);
+ BOP(RSHIFT,>>);
+ BOP(EQ,==);
+ BOP(NE,!=);
+ BOP('<',<);
+ BOP('>',>);
+ BOP(LE,<=);
+ BOP(GE,>=);
+ BOP('&',&);
+ BOP('^',^);
+ BOP('|',|);
+ 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_p = false;
+ }
+ }
+
+ return result;
+}
+
+etree_value_type
+invalid ()
+{
+ etree_value_type new;
+ new.valid_p = false;
+ return new;
+}
+
+static etree_value_type
+fold_name (tree, current_section, allocation_done, dot)
+ etree_type *tree;
+ lang_output_section_statement_type *current_section;
+ lang_phase_type allocation_done;
+ bfd_vma dot;
+{
+ etree_value_type result;
+ switch (tree->type.node_code)
+ {
+ case SIZEOF_HEADERS:
+ if (allocation_done != lang_first_phase_enum)
+ {
+ result = new_abs ((bfd_vma)
+ bfd_sizeof_headers (output_bfd,
+ link_info.relocateable));
+ }
+ else
+ {
+ result.valid_p = false;
+ }
+ break;
+ case DEFINED:
+ if (allocation_done == lang_first_phase_enum)
+ result.valid_p = false;
+ else
+ {
+ struct bfd_link_hash_entry *h;
+
+ 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_p = true;
+ }
+ break;
+ case NAME:
+ result.valid_p = false;
+ if (tree->name.name[0] == '.' && tree->name.name[1] == 0)
+ {
+ if (allocation_done != lang_first_phase_enum)
+ result = new_rel_from_section(dot, current_section);
+ else
+ result = invalid();
+ }
+ else if (allocation_done != lang_first_phase_enum)
+ {
+ struct bfd_link_hash_entry *h;
+
+ 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
+ || allocation_done == lang_allocating_phase_enum)
+ {
+ 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"),
+ tree->name.name);
+ }
+ break;
+
+ case ADDR:
+ 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, "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;
+
+ 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:
+ FAIL();
+ break;
+ }
+
+ return result;
+}
+etree_value_type
+exp_fold_tree (tree, current_section, allocation_done, dot, dotp)
+ etree_type *tree;
+ lang_output_section_statement_type *current_section;
+ lang_phase_type allocation_done;
+ bfd_vma dot;
+ bfd_vma *dotp;
+{
+ etree_value_type result;
+
+ if (tree == NULL)
+ {
+ 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_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_assert:
+ result = exp_fold_tree (tree->assert_s.child,
+ current_section,
+ allocation_done, dot, dotp);
+ if (result.valid_p)
+ {
+ if (! result.value)
+ einfo ("%F%P: %s\n", tree->assert_s.message);
+ return result;
+ }
+ break;
+
+ 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)
+ {
+ 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;
+
+ 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;
+
+ 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_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);
+ 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_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_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,
+ 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"),
+ tree->assign.dst);
+ }
+ else if (tree->type.node_class == etree_provide
+ && h->type != bfd_link_hash_undefined
+ && h->type != bfd_link_hash_common)
+ {
+ /* Do nothing. The symbol was defined by some
+ object. */
+ }
+ else
+ {
+ /* FIXME: Should we worry if the symbol is already
+ defined? */
+ h->type = bfd_link_hash_defined;
+ h->u.def.value = result.value;
+ h->u.def.section = result.section->bfd_section;
+ }
+ }
+ }
+ break;
+
+ case etree_name:
+ result = fold_name (tree, current_section, allocation_done, dot);
+ break;
+
+ default:
+ FAIL ();
+ break;
+ }
+
+ return result;
+}
+
+static etree_value_type
+exp_fold_tree_no_dot (tree, current_section, allocation_done)
+ etree_type *tree;
+ lang_output_section_statement_type *current_section;
+ lang_phase_type allocation_done;
+{
+return exp_fold_tree(tree, current_section, allocation_done, (bfd_vma)
+ 0, (bfd_vma *)NULL);
+}
+
+etree_type *
+exp_binop (code, lhs, rhs)
+ int code;
+ etree_type *lhs;
+ etree_type *rhs;
+{
+ etree_type value, *new;
+ etree_value_type r;
+
+ value.type.node_code = code;
+ value.binary.lhs = lhs;
+ value.binary.rhs = rhs;
+ value.type.node_class = etree_binary;
+ r = exp_fold_tree_no_dot(&value,
+ abs_output_section,
+ lang_first_phase_enum );
+ if (r.valid_p)
+ {
+ return exp_intop(r.value);
+ }
+ new = (etree_type *) stat_alloc (sizeof (new->binary));
+ memcpy((char *)new, (char *)&value, sizeof(new->binary));
+ return new;
+}
+
+etree_type *
+exp_trinop (code, cond, lhs, rhs)
+ int code;
+ etree_type *cond;
+ etree_type *lhs;
+ etree_type *rhs;
+{
+ etree_type value, *new;
+ etree_value_type r;
+ value.type.node_code = code;
+ value.trinary.lhs = lhs;
+ value.trinary.cond = cond;
+ value.trinary.rhs = rhs;
+ 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_p) {
+ return exp_intop(r.value);
+ }
+ new = (etree_type *) stat_alloc (sizeof (new->trinary));
+ memcpy((char *)new,(char *) &value, sizeof(new->trinary));
+ return new;
+}
+
+
+etree_type *
+exp_unop (code, child)
+ int code;
+ etree_type *child;
+{
+ etree_type value, *new;
+
+ etree_value_type r;
+ value.unary.type.node_code = code;
+ value.unary.child = child;
+ value.unary.type.node_class = etree_unary;
+ r = exp_fold_tree_no_dot(&value,abs_output_section,
+ lang_first_phase_enum);
+ if (r.valid_p) {
+ return exp_intop(r.value);
+ }
+ new = (etree_type *) stat_alloc (sizeof (new->unary));
+ memcpy((char *)new, (char *)&value, sizeof(new->unary));
+ return new;
+}
+
+
+etree_type *
+exp_nameop (code, name)
+ int code;
+ CONST char *name;
+{
+ etree_type value, *new;
+ etree_value_type r;
+ value.name.type.node_code = code;
+ value.name.name = name;
+ value.name.type.node_class = etree_name;
+
+
+ r = exp_fold_tree_no_dot(&value,
+ (lang_output_section_statement_type *)NULL,
+ lang_first_phase_enum);
+ if (r.valid_p) {
+ return exp_intop(r.value);
+ }
+ new = (etree_type *) stat_alloc (sizeof (new->name));
+ memcpy((char *)new, (char *)&value, sizeof(new->name));
+ return new;
+
+}
+
+
+
+
+etree_type *
+exp_assop (code, dst, src)
+ int code;
+ CONST char *dst;
+ etree_type *src;
+{
+ etree_type value, *new;
+
+ value.assign.type.node_code = code;
+
+
+ value.assign.src = src;
+ value.assign.dst = dst;
+ value.assign.type.node_class = etree_assign;
+
+#if 0
+ if (exp_fold_tree_no_dot(&value, &result)) {
+ return exp_intop(result);
+ }
+#endif
+ new = (etree_type*) stat_alloc (sizeof (new->assign));
+ memcpy((char *)new, (char *)&value, sizeof(new->assign));
+ return new;
+}
+
+/* Handle PROVIDE. */
+
+etree_type *
+exp_provide (dst, src)
+ const char *dst;
+ etree_type *src;
+{
+ etree_type *n;
+
+ n = (etree_type *) stat_alloc (sizeof (n->assign));
+ n->assign.type.node_code = '=';
+ n->assign.type.node_class = etree_provide;
+ n->assign.src = src;
+ n->assign.dst = dst;
+ 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:
+ minfo ("0x%v", tree->value.value);
+ return;
+ case etree_rel:
+ if (tree->rel.section->owner != NULL)
+ minfo ("%B:", tree->rel.section->owner);
+ minfo ("%s+0x%v", tree->rel.section->name, tree->rel.value);
+ return;
+ case etree_assign:
+#if 0
+ if (tree->assign.dst->sdefs != (asymbol *)NULL){
+ fprintf(config.map_file,"%s (%x) ",tree->assign.dst->name,
+ tree->assign.dst->sdefs->value);
+ }
+ else {
+ fprintf(config.map_file,"%s (UNDEFINED)",tree->assign.dst->name);
+ }
+#endif
+ fprintf(config.map_file,"%s",tree->assign.dst);
+ exp_print_token(tree->type.node_code);
+ exp_print_tree(tree->assign.src);
+ break;
+ case etree_provide:
+ fprintf (config.map_file, "PROVIDE (%s, ", tree->assign.dst);
+ exp_print_tree (tree->assign.src);
+ fprintf (config.map_file, ")");
+ break;
+ case etree_binary:
+ fprintf(config.map_file,"(");
+ exp_print_tree(tree->binary.lhs);
+ exp_print_token(tree->type.node_code);
+ exp_print_tree(tree->binary.rhs);
+ fprintf(config.map_file,")");
+ break;
+ case etree_trinary:
+ exp_print_tree(tree->trinary.cond);
+ fprintf(config.map_file,"?");
+ exp_print_tree(tree->trinary.lhs);
+ fprintf(config.map_file,":");
+ exp_print_tree(tree->trinary.rhs);
+ break;
+ case etree_unary:
+ 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;
+ case etree_name:
+ if (tree->type.node_code == NAME) {
+ fprintf(config.map_file,"%s", tree->name.name);
+ }
+ else {
+ exp_print_token(tree->type.node_code);
+ if (tree->name.name)
+ fprintf(config.map_file,"(%s)", tree->name.name);
+ }
+ break;
+ default:
+ FAIL();
+ break;
+ }
+}
+
+bfd_vma
+exp_get_vma (tree, def, name, allocation_done)
+ etree_type *tree;
+ bfd_vma def;
+ char *name;
+ lang_phase_type allocation_done;
+{
+ etree_value_type r;
+
+ 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;
+ }
+ else
+ return def;
+}
+
+int
+exp_get_value_int (tree,def,name, allocation_done)
+ etree_type *tree;
+ int def;
+ char *name;
+ lang_phase_type allocation_done;
+{
+ return (int)exp_get_vma(tree,(bfd_vma)def,name, allocation_done);
+}
+
+
+bfd_vma
+exp_get_abs_int (tree, def, name, allocation_done)
+ etree_type *tree;
+ int def;
+ 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_p)
+ {
+ res.value += res.section->bfd_section->vma;
+ }
+ else {
+ einfo (_("%F%S non constant expression for %s\n"),name);
+ }
+ return res.value;
+}