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PR ld/12356

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* ld.texinfo (Miscellaneous Commands): Describe LD_FEATURE.
	(Expression Section): Update.
	* ld.h (ld_config_type): Add sane_expr.
	* ldgram.y (ifile_p1): Add LD_FEATURE.
	* ldlex.l (LD_FEATYRE): New.
	* ldemul.c (after_parse_default): Delete code handling ld_compatibility.
	* ldexp.h (struct ldexp_control): Delete uses_defined.
	* ldexp.c: Remove all uses of uses_defined.
	(fold_name): Test config.sane_expr rather than ld_compatibility.
	(exp_fold_tree_1): Likewise.  Adjust handling of assignments
	during first phase.
	* ldlang.h (ld_compatibility): Delete.
	(lang_ld_feature): Declare.
	* ldlang.c (ld_compatibility): Delete.
	(open_input_bfds): Only handle assignments for --defsym.
	(lang_ld_feature): New function.
This commit is contained in:
Alan Modra 2011-01-13 13:29:55 +00:00
parent 2e57b2afce
commit 01554a74b5
10 changed files with 77 additions and 26 deletions
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34
ld/ldlang.c
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@ -108,7 +108,6 @@ bfd_boolean delete_output_file_on_failure = FALSE;
struct lang_phdr *lang_phdr_list;
struct lang_nocrossrefs *nocrossref_list;
bfd_boolean missing_file = FALSE;
int ld_compatibility;
/* Functions that traverse the linker script and might evaluate
DEFINED() need to increment this. */
@ -3250,7 +3249,9 @@ open_input_bfds (lang_statement_union_type *s, bfd_boolean force)
}
break;
case lang_assignment_statement_enum:
exp_fold_tree_no_dot (s->assignment_statement.exp);
if (s->assignment_statement.exp->assign.hidden)
/* This is from a --defsym on the command line. */
exp_fold_tree_no_dot (s->assignment_statement.exp);
break;
default:
break;
@ -7845,3 +7846,32 @@ lang_append_dynamic_list_cpp_new (void)
lang_append_dynamic_list (dynamic);
}
/* Scan a space and/or comma separated string of features. */
void
lang_ld_feature (char *str)
{
char *p, *q;
p = str;
while (*p)
{
char sep;
while (*p == ',' || ISSPACE (*p))
++p;
if (!*p)
break;
q = p + 1;
while (*q && *q != ',' && !ISSPACE (*q))
++q;
sep = *q;
*q = 0;
if (strcasecmp (p, "SANE_EXPR") == 0)
config.sane_expr = TRUE;
else
einfo (_("%X%P: unknown feature `%s'\n"), p);
*q = sep;
p = q;
}
}