Don't output symbol version definitions for non-DT_NEEDED libs
[platform/upstream/binutils.git] / ld / ldlex.l
index aa06d54..d162128 100644 (file)
@@ -1,8 +1,8 @@
+%option nounput
+
 %{
 
-/* Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003, 2004, 2005, 2007
-   Free Software Foundation, Inc.
+/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
    Written by Steve Chamberlain of Cygnus Support.
 
    This file is part of the GNU Binutils.
@@ -22,7 +22,6 @@
    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
    MA 02110-1301, USA.  */
 
-#include "sysdep.h"
 #include "bfd.h"
 #include "safe-ctype.h"
 #include "bfdlink.h"
@@ -57,24 +56,28 @@ const char *lex_string = NULL;
    Otherwise, stack elements 0 through `include_stack_ptr - 1' are valid.  */
 
 #undef YY_INPUT
-#define YY_INPUT(buf,result,max_size) yy_input (buf, &result, max_size)
+#define YY_INPUT(buf,result,max_size) result = yy_input (buf, max_size)
 
+#ifndef YY_NO_UNPUT
 #define YY_NO_UNPUT
+#endif
 
 #define MAX_INCLUDE_DEPTH 10
 static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
 static const char *file_name_stack[MAX_INCLUDE_DEPTH];
 static unsigned int lineno_stack[MAX_INCLUDE_DEPTH];
+static unsigned int sysrooted_stack[MAX_INCLUDE_DEPTH];
 static unsigned int include_stack_ptr = 0;
 static int vers_node_nesting = 0;
 
-static void yy_input (char *, int *, int);
+static int yy_input (char *, int);
 static void comment (void);
 static void lex_warn_invalid (char *where, char *what);
 
 /* STATES
        EXPRESSION      definitely in an expression
        SCRIPT          definitely in a script
+       INPUTLIST       definitely in a script, a filename-list
        BOTH            either EXPRESSION or SCRIPT
        DEFSYMEXP       in an argument to -defsym
         MRI             in an MRI script
@@ -98,7 +101,7 @@ CMDFILENAMECHAR1  [_a-zA-Z0-9\/\.\\_\+\$\:\[\]\\\,\=\&\!\<\>\~]
 FILENAMECHAR1  [_a-zA-Z\/\.\\\$\_\~]
 SYMBOLCHARN     [_a-zA-Z\/\.\\\$\_\~0-9]
 FILENAMECHAR   [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~]
-WILDCHAR       [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~\?\*]
+WILDCHAR       [_a-zA-Z0-9\/\.\-\_\+\=\$\:\[\]\\\,\~\?\*\^\!]
 WHITE          [ \t\n\r]+
 
 NOCFILENAMECHAR        [_a-zA-Z0-9\/\.\-\_\+\$\:\[\]\\\~]
@@ -107,6 +110,7 @@ V_TAG [.$_a-zA-Z][._a-zA-Z0-9]*
 V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 
 %s SCRIPT
+%s INPUTLIST
 %s EXPRESSION
 %s BOTH
 %s DEFSYMEXP
@@ -132,7 +136,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
        }
     }
 
-<BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT>"/*"  { comment (); }
+<BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>"/*"        { comment (); }
 
 
 <DEFSYMEXP>"-"                  { RTOKEN('-');}
@@ -219,7 +223,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 <BOTH,SCRIPT,EXPRESSION,MRI>"|="       { RTOKEN(OREQ);}
 <BOTH,SCRIPT,EXPRESSION,MRI>"&&"       { RTOKEN(ANDAND);}
 <BOTH,SCRIPT,EXPRESSION,MRI>">"                { RTOKEN('>');}
-<BOTH,SCRIPT,EXPRESSION,MRI>","                { RTOKEN(',');}
+<BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>","              { RTOKEN(',');}
 <BOTH,SCRIPT,EXPRESSION,MRI>"&"                { RTOKEN('&');}
 <BOTH,SCRIPT,EXPRESSION,MRI>"|"                { RTOKEN('|');}
 <BOTH,SCRIPT,EXPRESSION,MRI>"~"                { RTOKEN('~');}
@@ -234,11 +238,13 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 <BOTH,SCRIPT,EXPRESSION,MRI>"="         { RTOKEN('=');}
 <BOTH,SCRIPT,EXPRESSION,MRI>"}"                { RTOKEN('}') ; }
 <BOTH,SCRIPT,EXPRESSION,MRI>"{"                { RTOKEN('{'); }
-<BOTH,SCRIPT,EXPRESSION,MRI>")"                { RTOKEN(')');}
-<BOTH,SCRIPT,EXPRESSION,MRI>"("                { RTOKEN('(');}
+<BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>")"              { RTOKEN(')');}
+<BOTH,SCRIPT,EXPRESSION,MRI,INPUTLIST>"("              { RTOKEN('(');}
 <BOTH,SCRIPT,EXPRESSION,MRI>":"                { RTOKEN(':'); }
 <BOTH,SCRIPT,EXPRESSION,MRI>";"                { RTOKEN(';');}
 <BOTH,SCRIPT>"MEMORY"                  { RTOKEN(MEMORY);}
+<BOTH,SCRIPT>"REGION_ALIAS"            { RTOKEN(REGION_ALIAS);}
+<BOTH,SCRIPT>"LD_FEATURE"              { RTOKEN(LD_FEATURE);}
 <BOTH,SCRIPT,EXPRESSION>"ORIGIN"       { RTOKEN(ORIGIN);}
 <BOTH,SCRIPT>"VERSION"                 { RTOKEN(VERSIONK);}
 <EXPRESSION,BOTH,SCRIPT>"BLOCK"                { RTOKEN(BLOCK);}
@@ -253,6 +259,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 <EXPRESSION,BOTH,SCRIPT>"ALIGNOF"      { RTOKEN(ALIGNOF); }
 <EXPRESSION,BOTH>"MAX"                 { RTOKEN(MAX_K); }
 <EXPRESSION,BOTH>"MIN"                 { RTOKEN(MIN_K); }
+<EXPRESSION,BOTH>"LOG2CEIL"            { RTOKEN(LOG2CEIL); }
 <EXPRESSION,BOTH,SCRIPT>"ASSERT"       { RTOKEN(ASSERT_K); }
 <BOTH,SCRIPT>"ENTRY"                   { RTOKEN(ENTRY);}
 <BOTH,SCRIPT,MRI>"EXTERN"              { RTOKEN(EXTERN);}
@@ -267,7 +274,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 <BOTH,SCRIPT>"OUTPUT"                  { RTOKEN(OUTPUT);}
 <BOTH,SCRIPT>"INPUT"                   { RTOKEN(INPUT);}
 <EXPRESSION,BOTH,SCRIPT>"GROUP"                { RTOKEN(GROUP);}
-<EXPRESSION,BOTH,SCRIPT>"AS_NEEDED"    { RTOKEN(AS_NEEDED);}
+<EXPRESSION,BOTH,SCRIPT,INPUTLIST>"AS_NEEDED"  { RTOKEN(AS_NEEDED);}
 <EXPRESSION,BOTH,SCRIPT>"DEFINED"      { RTOKEN(DEFINED);}
 <BOTH,SCRIPT>"CREATE_OBJECT_SYMBOLS"   { RTOKEN(CREATE_OBJECT_SYMBOLS);}
 <BOTH,SCRIPT>"CONSTRUCTORS"            { RTOKEN( CONSTRUCTORS);}
@@ -295,6 +302,8 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 <BOTH,SCRIPT>"SORT_BY_NAME"            { RTOKEN(SORT_BY_NAME); }
 <BOTH,SCRIPT>"SORT_BY_ALIGNMENT"       { RTOKEN(SORT_BY_ALIGNMENT); }
 <BOTH,SCRIPT>"SORT"                    { RTOKEN(SORT_BY_NAME); }
+<BOTH,SCRIPT>"SORT_BY_INIT_PRIORITY"   { RTOKEN(SORT_BY_INIT_PRIORITY); }
+<BOTH,SCRIPT>"SORT_NONE"               { RTOKEN(SORT_NONE); }
 <EXPRESSION,BOTH,SCRIPT>"NOLOAD"       { RTOKEN(NOLOAD);}
 <EXPRESSION,BOTH,SCRIPT>"DSECT"                { RTOKEN(DSECT);}
 <EXPRESSION,BOTH,SCRIPT>"COPY"         { RTOKEN(COPY);}
@@ -307,10 +316,13 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 <BOTH,SCRIPT>"org"                     { RTOKEN(ORIGIN);}
 <BOTH,SCRIPT>"l"                       { RTOKEN( LENGTH);}
 <BOTH,SCRIPT>"len"                     { RTOKEN( LENGTH);}
+<EXPRESSION,BOTH,SCRIPT>"INPUT_SECTION_FLAGS"  { RTOKEN(INPUT_SECTION_FLAGS); }
 <EXPRESSION,BOTH,SCRIPT>"INCLUDE"      { RTOKEN(INCLUDE);}
 <BOTH,SCRIPT>"PHDRS"                   { RTOKEN (PHDRS); }
 <EXPRESSION,BOTH,SCRIPT>"AT"           { RTOKEN(AT);}
+<EXPRESSION,BOTH,SCRIPT>"ALIGN_WITH_INPUT"     { RTOKEN(ALIGN_WITH_INPUT);}
 <EXPRESSION,BOTH,SCRIPT>"SUBALIGN"     { RTOKEN(SUBALIGN);}
+<EXPRESSION,BOTH,SCRIPT>"HIDDEN"       { RTOKEN(HIDDEN); }
 <EXPRESSION,BOTH,SCRIPT>"PROVIDE"      { RTOKEN(PROVIDE); }
 <EXPRESSION,BOTH,SCRIPT>"PROVIDE_HIDDEN" { RTOKEN(PROVIDE_HIDDEN); }
 <EXPRESSION,BOTH,SCRIPT>"KEEP"         { RTOKEN(KEEP); }
@@ -363,11 +375,16 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
                                }
 
 
-<BOTH>{FILENAMECHAR1}{FILENAMECHAR}*   {
+<BOTH,INPUTLIST>{FILENAMECHAR1}{FILENAMECHAR}* {
+                                yylval.name = xstrdup (yytext);
+                                 return NAME;
+                               }
+<INPUTLIST>"="{FILENAMECHAR1}{FILENAMECHAR}*   {
+/* Filename to be prefixed by --sysroot or when non-sysrooted, nothing.  */
                                 yylval.name = xstrdup (yytext);
                                  return NAME;
                                }
-<BOTH>"-l"{FILENAMECHAR}+ {
+<BOTH,INPUTLIST>"-l"{FILENAMECHAR}+ {
                                  yylval.name = xstrdup (yytext + 2);
                                  return LNAME;
                                }
@@ -396,7 +413,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
                  }
        }
 
-<EXPRESSION,BOTH,SCRIPT,VERS_NODE>"\""[^\"]*"\"" {
+<EXPRESSION,BOTH,SCRIPT,VERS_NODE,INPUTLIST>"\""[^\"]*"\"" {
                                        /* No matter the state, quotes
                                           give what's inside */
                                        yylval.name = xstrdup (yytext + 1);
@@ -437,22 +454,17 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 
 <VERS_START,VERS_NODE,VERS_SCRIPT>#.*          { /* Eat up comments */ }
 
-<VERS_START,VERS_NODE,VERS_SCRIPT>[ \t\r]+     { /* Eat up whitespace */ }
+<VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>[ \t\r]+           { /* Eat up whitespace */ }
 
 <<EOF>> {
   include_stack_ptr--;
-
   if (include_stack_ptr == 0)
-  {
     yyterminate ();
-  }
   else
-  {
     yy_switch_to_buffer (include_stack[include_stack_ptr]);
-  }
 
-  ldfile_input_filename = file_name_stack[include_stack_ptr - 1];
   lineno = lineno_stack[include_stack_ptr];
+  input_flags.sysrooted = sysrooted_stack[include_stack_ptr];
 
   return END;
 }
@@ -467,7 +479,7 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
    saving the current input info on the include stack.  */
 
 void
-lex_push_file (FILE *file, const char *name)
+lex_push_file (FILE *file, const char *name, unsigned int sysrooted)
 {
   if (include_stack_ptr >= MAX_INCLUDE_DEPTH)
     {
@@ -475,10 +487,12 @@ lex_push_file (FILE *file, const char *name)
     }
   file_name_stack[include_stack_ptr] = name;
   lineno_stack[include_stack_ptr] = lineno;
+  sysrooted_stack[include_stack_ptr] = input_flags.sysrooted;
   include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
 
   include_stack_ptr++;
   lineno = 1;
+  input_flags.sysrooted = sysrooted;
   yyin = file;
   yy_switch_to_buffer (yy_create_buffer (yyin, YY_BUF_SIZE));
 }
@@ -527,7 +541,7 @@ yy_create_string_buffer (const char *string, size_t size)
    on the include stack.  */
 
 void
-lex_redirect (const char *string)
+lex_redirect (const char *string, const char *fake_filename, unsigned int count)
 {
   YY_BUFFER_STATE tmp;
 
@@ -536,11 +550,11 @@ lex_redirect (const char *string)
     {
       einfo("%F: macros nested too deeply\n");
     }
-  file_name_stack[include_stack_ptr] = "redirect";
+  file_name_stack[include_stack_ptr] = fake_filename;
   lineno_stack[include_stack_ptr] = lineno;
   include_stack[include_stack_ptr] = YY_CURRENT_BUFFER;
   include_stack_ptr++;
-  lineno = 1;
+  lineno = count;
   tmp = yy_create_string_buffer (string, strlen (string));
   yy_switch_to_buffer (tmp);
 }
@@ -559,6 +573,13 @@ ldlex_script (void)
 }
 
 void
+ldlex_inputlist (void)
+{
+  *(state_stack_p)++ = yy_start;
+  BEGIN (INPUTLIST);
+}
+
+void
 ldlex_mri_script (void)
 {
   *(state_stack_p)++ = yy_start;
@@ -605,24 +626,34 @@ ldlex_popstate (void)
 {
   yy_start = *(--state_stack_p);
 }
+
+/* Return the current file name, or the previous file if no file is
+   current.  */
+
+const char*
+ldlex_filename (void)
+{
+  return file_name_stack[include_stack_ptr - (include_stack_ptr != 0)];
+}
 \f
 
-/* Place up to MAX_SIZE characters in BUF and return in *RESULT
+/* Place up to MAX_SIZE characters in BUF and return
    either the number of characters read, or 0 to indicate EOF.  */
 
-static void
-yy_input (char *buf, int *result, int max_size)
+static int
+yy_input (char *buf, int max_size)
 {
-  *result = 0;
+  int result = 0;
   if (YY_CURRENT_BUFFER->yy_input_file)
     {
       if (yyin)
        {
-         *result = fread (buf, 1, max_size, yyin);
-         if (*result < max_size && ferror (yyin))
+         result = fread (buf, 1, max_size, yyin);
+         if (result < max_size && ferror (yyin))
            einfo ("%F%P: read in flex scanner failed\n");
        }
     }
+  return result;
 }
 
 /* Eat the rest of a C-style comment.  */
@@ -677,14 +708,14 @@ lex_warn_invalid (char *where, char *what)
   if (ldfile_assumed_script)
     {
       bfd_set_error (bfd_error_file_not_recognized);
-      einfo ("%F%s: file not recognized: %E\n", ldfile_input_filename);
+      einfo ("%F%s: file not recognized: %E\n", ldlex_filename ());
     }
 
   if (! ISPRINT (*what))
     {
-      sprintf (buf, "\\%03o", (unsigned int) *what);
+      sprintf (buf, "\\%03o", *(unsigned char *) what);
       what = buf;
     }
 
-  einfo ("%P:%S: ignoring invalid character `%s'%s\n", what, where);
+  einfo ("%P:%S: ignoring invalid character `%s'%s\n", NULL, what, where);
 }