From d038301c195742daa0008b68ee50e59ec151829e Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@gnu.org>
Date: Thu, 24 Apr 2003 17:15:25 +0000
Subject: [PATCH] 2003-04-24  Roland McGrath  <roland@redhat.com>

	* ldgram.y (phdr_type): Grok PT_TLS and PT_GNU_EH_FRAME names.
	If a name string is unknown, give an error rather than crashing later.
---
 ld/ldgram.y | 62 ++++++++++++++++++++++++++++++++++++-------------------------
 1 file changed, 37 insertions(+), 25 deletions(-)

diff --git a/ld/ldgram.y b/ld/ldgram.y
index fadc3e5..e9c8a9f 100644
--- a/ld/ldgram.y
+++ b/ld/ldgram.y
@@ -29,7 +29,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #include "bfd.h"
 #include "sysdep.h"
 #include "bfdlink.h"
-#include "ld.h"    
+#include "ld.h"
 #include "ldexp.h"
 #include "ldver.h"
 #include "ldlang.h"
@@ -102,7 +102,7 @@ static int error_index;
 %type <name> memspec_at_opt
 %type <cname> wildcard_name
 %type <wildcard> wildcard_spec
-%token <bigint> INT  
+%token <bigint> INT
 %token <name> NAME LNAME
 %type <integer> length
 %type <phdr> phdr_qualifiers
@@ -110,7 +110,7 @@ static int error_index;
 %type <section_phdr> phdr_opt
 %type <integer> opt_nocrossrefs
 
-%right <token> PLUSEQ MINUSEQ MULTEQ DIVEQ  '=' LSHIFTEQ RSHIFTEQ   ANDEQ OREQ 
+%right <token> PLUSEQ MINUSEQ MULTEQ DIVEQ  '=' LSHIFTEQ RSHIFTEQ   ANDEQ OREQ
 %right <token> '?' ':'
 %left <token> OROR
 %left <token>  ANDAND
@@ -125,7 +125,7 @@ static int error_index;
 %left  <token> '*' '/' '%'
 
 %right UNARY
-%token END 
+%token END
 %left <token> '('
 %token <token> ALIGN_K BLOCK BIND QUAD SQUAD LONG SHORT BYTE
 %token SECTIONS PHDRS SORT DATA_SEGMENT_ALIGN DATA_SEGMENT_END
@@ -158,7 +158,7 @@ static int error_index;
 
 %%
 
-file:	
+file:
 		INPUT_SCRIPT script_file
 	|	INPUT_MRI_SCRIPT mri_script_file
 	|	INPUT_VERSION_SCRIPT version_script_file
@@ -178,7 +178,7 @@ defsym_expr:
 		}
 	;
 
-/* SYNTAX WITHIN AN MRI SCRIPT FILE */  
+/* SYNTAX WITHIN AN MRI SCRIPT FILE */
 mri_script_file:
 		{
 		  ldlex_mri_script ();
@@ -198,7 +198,7 @@ mri_script_lines:
 	;
 
 mri_script_command:
-		CHIP  exp 
+		CHIP  exp
 	|	CHIP  exp ',' exp
 	|	NAME 	{
 			einfo(_("%P%F: unrecognised keyword in MRI style script '%s'\n"),$1);
@@ -207,12 +207,12 @@ mri_script_command:
 			config.map_filename = "-";
 			}
         |       ORDER ordernamelist
-	|       ENDWORD 
+	|       ENDWORD
         |       PUBLIC NAME '=' exp
  			{ mri_public($2, $4); }
         |       PUBLIC NAME ',' exp
  			{ mri_public($2, $4); }
-        |       PUBLIC NAME  exp 
+        |       PUBLIC NAME  exp
  			{ mri_public($2, $3); }
 	| 	FORMAT NAME
 			{ mri_format($2); }
@@ -232,8 +232,8 @@ mri_script_command:
 			{ mri_alignmod($2,$4); }
 	|	ABSOLUTE mri_abs_name_list
 	|	LOAD	 mri_load_name_list
-	|       NAMEWORD NAME 
-			{ mri_name($2); }   
+	|       NAMEWORD NAME
+			{ mri_name($2); }
 	|	ALIAS NAME ',' NAME
 			{ mri_alias($2,$4,0);}
 	|	ALIAS NAME ',' INT
@@ -340,7 +340,7 @@ ifile_p1:
 		  { lang_leave_group (); }
      	|	MAP '(' filename ')'
 		{ lang_add_map($3); }
-	|	INCLUDE filename 
+	|	INCLUDE filename
 		{ ldlex_script (); ldfile_open_command_file($2); }
 		ifile_list END
 		{ ldlex_popstate (); }
@@ -439,7 +439,7 @@ exclude_name_list:
 			  tmp = (struct name_list *) xmalloc (sizeof *tmp);
 			  tmp->name = $2;
 			  tmp->next = $1;
-			  $$ = tmp;	
+			  $$ = tmp;
 			}
 	|
 		wildcard_name
@@ -503,13 +503,13 @@ statement:
 	  	assignment end
 	|	CREATE_OBJECT_SYMBOLS
 		{
- 		lang_add_attribute(lang_object_symbols_statement_enum); 
+ 		lang_add_attribute(lang_object_symbols_statement_enum);
 	      	}
         |	';'
         |	CONSTRUCTORS
 		{
- 		
-		  lang_add_attribute(lang_constructors_statement_enum); 
+
+		  lang_add_attribute(lang_constructors_statement_enum);
 		}
 	| SORT '(' CONSTRUCTORS ')'
 		{
@@ -521,7 +521,7 @@ statement:
         	        {
 			  lang_add_data ((int) $1, $3);
 			}
-  
+
 	| FILL '(' fill_exp ')'
 			{
 			  lang_add_fill ($3);
@@ -532,7 +532,7 @@ statement_list:
 		statement_list statement
   	|  	statement
 	;
-  
+
 statement_list_opt:
 		/* empty */
 	|	statement_list
@@ -701,7 +701,7 @@ floating_point_support:
 	|	NOFLOAT
 			{ lang_float(FALSE); }
 	;
-		
+
 nocrossref_list:
 		/* empty */
 		{
@@ -829,7 +829,7 @@ opt_at:
 	;
 
 section:	NAME 		{ ldlex_expression(); }
-		opt_exp_with_type 
+		opt_exp_with_type
 		opt_at   	{ ldlex_popstate (); ldlex_script (); }
 		'{'
 			{
@@ -837,7 +837,7 @@ section:	NAME 		{ ldlex_expression(); }
 							      sectype,
 							      0, 0, 0, $4);
 			}
-		statement_list_opt 	
+		statement_list_opt
  		'}' { ldlex_popstate (); ldlex_expression (); }
 		memspec_opt memspec_at_opt phdr_opt fill_opt
 		{
@@ -850,7 +850,7 @@ section:	NAME 		{ ldlex_expression(); }
 			{ ldlex_expression (); }
 		opt_exp_without_type opt_nocrossrefs opt_at
 			{ ldlex_popstate (); ldlex_script (); }
-		'{' 
+		'{'
 			{
 			  lang_enter_overlay ($3);
 			}
@@ -990,7 +990,7 @@ phdr_type:
 			{
 			  "PT_NULL", "PT_LOAD", "PT_DYNAMIC",
 			  "PT_INTERP", "PT_NOTE", "PT_SHLIB",
-			  "PT_PHDR"
+			  "PT_PHDR", "PT_TLS"
 			};
 
 		      s = $1->name.name;
@@ -1002,6 +1002,18 @@ phdr_type:
 			    $$ = exp_intop (i);
 			    break;
 			  }
+		      if (i == sizeof phdr_types / sizeof phdr_types[0])
+			{
+			  if (strcmp (s, "PT_GNU_EH_FRAME") == 0)
+			    $$ = exp_intop (0x6474e550);
+			  else
+			    {
+			      einfo (_("\
+%X%P:%S: unknown phdr type `%s' (try integer literal)\n"),
+				     s);
+			      $$ = exp_intop (0);
+			    }
+			}
 		    }
 		}
 	;
@@ -1159,9 +1171,9 @@ opt_semicolon:
 
 %%
 void
-yyerror(arg) 
+yyerror(arg)
      const char *arg;
-{ 
+{
   if (ldfile_assumed_script)
     einfo (_("%P:%s: file format not recognized; treating as linker script\n"),
 	   ldfile_input_filename);
-- 
2.7.4