X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=ld%2Fldlex.l;h=ba618ecc2715bdb380752e97a919c33563042e31;hb=aefd8b33d97bded58e51d75271f99e1eaec9fb28;hp=d1621289d6ee11322defa12844308e012a059e84;hpb=eeed9cc785ca447868967e5c84dae63e9ca8e6c2;p=deliverable%2Fbinutils-gdb.git

diff --git a/ld/ldlex.l b/ld/ldlex.l
index d1621289d6..ba618ecc27 100644
--- a/ld/ldlex.l
+++ b/ld/ldlex.l
@@ -1,8 +1,8 @@
-%option nounput
+%option nounput noyywrap
 
 %{
 
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2017 Free Software Foundation, Inc.
    Written by Steve Chamberlain of Cygnus Support.
 
    This file is part of the GNU Binutils.
@@ -39,9 +39,8 @@
    yylex and yyparse (indirectly) both check this.  */
 input_type parser_input;
 
-/* Line number in the current input file.
-   (FIXME Actually, it doesn't appear to get reset for each file?)  */
-unsigned int lineno = 1;
+/* Line number in the current input file.  */
+unsigned int lineno;
 
 /* The string we are currently lexing, or NULL if we are reading a
    file.  */
@@ -87,10 +86,6 @@ static void lex_warn_invalid (char *where, char *what);
 */
 #define RTOKEN(x)  {  yylval.token = x; return x; }
 
-/* Some versions of flex want this.  */
-#ifndef yywrap
-int yywrap (void) { return 1; }
-#endif
 %}
 
 %a 4000
@@ -279,6 +274,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 <BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS"	{ RTOKEN(CREATE_OBJECT_SYMBOLS);}
 <BOTH,SCRIPT>"CONSTRUCTORS"		{ RTOKEN( CONSTRUCTORS);}
 <BOTH,SCRIPT>"FORCE_COMMON_ALLOCATION"	{ RTOKEN(FORCE_COMMON_ALLOCATION);}
+<BOTH,SCRIPT>"FORCE_GROUP_ALLOCATION"	{ RTOKEN(FORCE_GROUP_ALLOCATION);}
 <BOTH,SCRIPT>"INHIBIT_COMMON_ALLOCATION" { RTOKEN(INHIBIT_COMMON_ALLOCATION);}
 <BOTH,SCRIPT>"SECTIONS"			{ RTOKEN(SECTIONS);}
 <BOTH,SCRIPT>"INSERT"			{ RTOKEN(INSERT_K);}
@@ -298,6 +294,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 <BOTH,SCRIPT>"BYTE"			{ RTOKEN( BYTE);}
 <BOTH,SCRIPT>"NOFLOAT"			{ RTOKEN(NOFLOAT);}
 <EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS"	{ RTOKEN(NOCROSSREFS);}
+<EXPRESSION,BOTH,SCRIPT>"NOCROSSREFS_TO" { RTOKEN(NOCROSSREFS_TO);}
 <BOTH,SCRIPT>"OVERLAY"			{ RTOKEN(OVERLAY); }
 <BOTH,SCRIPT>"SORT_BY_NAME"		{ RTOKEN(SORT_BY_NAME); }
 <BOTH,SCRIPT>"SORT_BY_ALIGNMENT"	{ RTOKEN(SORT_BY_ALIGNMENT); }
@@ -380,6 +377,11 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 				  return NAME;
 				}
 <INPUTLIST>"="{FILENAMECHAR1}{FILENAMECHAR}*	{
+/* Filename to be prefixed by --sysroot or when non-sysrooted, nothing.  */
+				 yylval.name = xstrdup (yytext);
+				  return NAME;
+				}
+<INPUTLIST>"$SYSROOT"{FILENAMECHAR1}{FILENAMECHAR}*	{
 /* Filename to be prefixed by --sysroot or when non-sysrooted, nothing.  */
 				 yylval.name = xstrdup (yytext);
 				  return NAME;
@@ -415,9 +417,15 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 
 <EXPRESSION,BOTH,SCRIPT,VERS_NODE,INPUTLIST>"\""[^\"]*"\"" {
 					/* No matter the state, quotes
-					   give what's inside */
+					   give what's inside.  */
+					bfd_size_type len;
 					yylval.name = xstrdup (yytext + 1);
-					yylval.name[yyleng - 2] = 0;
+					/* PR ld/20906.  A corrupt input file
+					   can contain bogus strings.  */
+					len = strlen (yylval.name);
+					if (len > yyleng - 2)
+					  len = yyleng - 2;
+					yylval.name[len] = 0;
 					return NAME;
 				}
 <BOTH,SCRIPT,EXPRESSION>"\n"		{ lineno++;}
@@ -450,7 +458,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 				  return *yytext;
 				}
 
-<VERS_START,VERS_NODE,VERS_SCRIPT>[\n]		{ lineno++; }
+<VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[\n]	{ lineno++; }
 
 <VERS_START,VERS_NODE,VERS_SCRIPT>#.*		{ /* Eat up comments */ }
 
@@ -459,7 +467,10 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 <<EOF>> {
   include_stack_ptr--;
   if (include_stack_ptr == 0)
-    yyterminate ();
+    {
+      lineno = 0;
+      yyterminate ();
+    }
   else
     yy_switch_to_buffer (include_stack[include_stack_ptr]);