X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=ld%2Fldlex.l;h=e1394a035762d7767a78c4f2eea17928a6839060;hb=0c66ea4c5e46372c7411f67b0ba21d7de5215958;hp=e01ce0688dd48494676ea4a024504ae09d53ef1f;hpb=75be928bd2cbcc431c59bb3b9f20a7c002fc2022;p=deliverable%2Fbinutils-gdb.git

diff --git a/ld/ldlex.l b/ld/ldlex.l
index e01ce0688d..e1394a0357 100644
--- a/ld/ldlex.l
+++ b/ld/ldlex.l
@@ -1,35 +1,28 @@
+%option nounput
+
 %{
 
-/* Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003, 2004, 2005  Free Software Foundation, Inc.
+/* Copyright (C) 1991-2016 Free Software Foundation, Inc.
+   Written by Steve Chamberlain of Cygnus Support.
 
-   This file is part of GLD, the Gnu Linker.
+   This file is part of the GNU Binutils.
 
-   GLD is free software; you can redistribute it and/or modify
+   This program 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.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
-   GLD is distributed in the hope that it will be useful,
+   This program 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, 51 Franklin Street - Fifth Floor, Boston, MA
-   02110-1301, USA.  */
-
-/*
-This was written by steve chamberlain
-                    sac@cygnus.com
-*/
-
-
-#include <stdio.h>
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
 
 #include "bfd.h"
-#include "sysdep.h"
 #include "safe-ctype.h"
 #include "bfdlink.h"
 #include "ld.h"
@@ -46,9 +39,8 @@ This was written by steve chamberlain
    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.  */
@@ -63,24 +55,28 @@ 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
@@ -104,7 +100,7 @@ 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\/\.\-\_\+\$\:\[\]\\\~]
@@ -113,6 +109,7 @@ 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
@@ -132,12 +129,13 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 	case input_script: return INPUT_SCRIPT; break;
 	case input_mri_script: return INPUT_MRI_SCRIPT; break;
 	case input_version_script: return INPUT_VERSION_SCRIPT; break;
+	case input_dynamic_list: return INPUT_DYNAMIC_LIST; break;
 	case input_defsym: return INPUT_DEFSYM; break;
 	default: abort ();
 	}
     }
 
-<BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT>"/*"	{ comment (); }
+<BOTH,SCRIPT,EXPRESSION,VERS_START,VERS_NODE,VERS_SCRIPT,INPUTLIST>"/*"	{ comment (); }
 
 
 <DEFSYMEXP>"-"                  { RTOKEN('-');}
@@ -224,7 +222,7 @@ 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('~');}
@@ -239,11 +237,13 @@ 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);}
@@ -255,9 +255,11 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 <EXPRESSION,BOTH,SCRIPT>"DATA_SEGMENT_END"	{ RTOKEN(DATA_SEGMENT_END);}
 <EXPRESSION,BOTH,SCRIPT>"ADDR"		{ RTOKEN(ADDR);}
 <EXPRESSION,BOTH,SCRIPT>"LOADADDR"	{ RTOKEN(LOADADDR);}
+<EXPRESSION,BOTH,SCRIPT>"ALIGNOF"	{ RTOKEN(ALIGNOF); }
 <EXPRESSION,BOTH>"MAX"			{ RTOKEN(MAX_K); }
 <EXPRESSION,BOTH>"MIN"			{ RTOKEN(MIN_K); }
-<EXPRESSION,BOTH>"ASSERT"		{ RTOKEN(ASSERT_K); }
+<EXPRESSION,BOTH>"LOG2CEIL"		{ RTOKEN(LOG2CEIL); }
+<EXPRESSION,BOTH,SCRIPT>"ASSERT"	{ RTOKEN(ASSERT_K); }
 <BOTH,SCRIPT>"ENTRY"			{ RTOKEN(ENTRY);}
 <BOTH,SCRIPT,MRI>"EXTERN"		{ RTOKEN(EXTERN);}
 <EXPRESSION,BOTH,SCRIPT>"NEXT"		{ RTOKEN(NEXT);}
@@ -271,13 +273,16 @@ 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);}
 <BOTH,SCRIPT>"FORCE_COMMON_ALLOCATION"	{ RTOKEN(FORCE_COMMON_ALLOCATION);}
 <BOTH,SCRIPT>"INHIBIT_COMMON_ALLOCATION" { RTOKEN(INHIBIT_COMMON_ALLOCATION);}
 <BOTH,SCRIPT>"SECTIONS"			{ RTOKEN(SECTIONS);}
+<BOTH,SCRIPT>"INSERT"			{ RTOKEN(INSERT_K);}
+<BOTH,SCRIPT>"AFTER"			{ RTOKEN(AFTER);}
+<BOTH,SCRIPT>"BEFORE"			{ RTOKEN(BEFORE);}
 <BOTH,SCRIPT>"FILL"			{ RTOKEN(FILL);}
 <BOTH,SCRIPT>"STARTUP"			{ RTOKEN(STARTUP);}
 <BOTH,SCRIPT>"OUTPUT_FORMAT"		{ RTOKEN(OUTPUT_FORMAT);}
@@ -292,10 +297,13 @@ 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); }
 <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);}
@@ -308,13 +316,18 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 <BOTH,SCRIPT>"org"			{ RTOKEN(ORIGIN);}
 <BOTH,SCRIPT>"l"			{ RTOKEN( LENGTH);}
 <BOTH,SCRIPT>"len"			{ RTOKEN( LENGTH);}
-<BOTH,SCRIPT>"INCLUDE"			{ RTOKEN(INCLUDE);}
+<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); }
 <EXPRESSION,BOTH,SCRIPT>"EXCLUDE_FILE"  { RTOKEN(EXCLUDE_FILE); }
+<EXPRESSION,BOTH,SCRIPT>"CONSTANT"	{ RTOKEN(CONSTANT);}
 <MRI>"#".*\n?			{ ++ lineno; }
 <MRI>"\n"	                { ++ lineno;  RTOKEN(NEWLINE); }
 <MRI>"*".*			{ /* Mri comment line */ }
@@ -362,11 +375,24 @@ V_IDENTIFIER [*?.$_a-zA-Z\[\]\-\!\^\\]([*?.$_a-zA-Z0-9\[\]\-\!\^\\]|::)*
 				}
 
 
-<BOTH,EXPRESSION>{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,EXPRESSION>"-l"{FILENAMECHAR}+ {
+<BOTH,INPUTLIST>"-l"{FILENAMECHAR}+ {
+				  yylval.name = xstrdup (yytext + 2);
+				  return LNAME;
+				}
+<EXPRESSION>{FILENAMECHAR1}{NOCFILENAMECHAR}*	{
+				 yylval.name = xstrdup (yytext);
+				  return NAME;
+				}
+<EXPRESSION>"-l"{NOCFILENAMECHAR}+ {
 				  yylval.name = xstrdup (yytext + 2);
 				  return LNAME;
 				}
@@ -387,7 +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);
@@ -424,26 +450,24 @@ 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 */ }
 
-<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 ();
-  }
+    {
+      lineno = 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;
 }
@@ -458,7 +482,7 @@ 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)
     {
@@ -466,10 +490,12 @@ 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));
 }
@@ -518,7 +544,7 @@ 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;
 
@@ -527,11 +553,11 @@ 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);
 }
@@ -549,6 +575,13 @@ ldlex_script (void)
   BEGIN (SCRIPT);
 }
 
+void
+ldlex_inputlist (void)
+{
+  *(state_stack_p)++ = yy_start;
+  BEGIN (INPUTLIST);
+}
+
 void
 ldlex_mri_script (void)
 {
@@ -596,24 +629,34 @@ 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)];
+}
 
 
-/* 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.  */
@@ -668,14 +711,14 @@ 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);
 }