Re: [PATCH] Pass -mtune and -march options to assembler.

["Valdimir Volynsky" <vvv at ru dot ru>]

> No.  This doesn't work for assemblers other than GNU as.

Ok. Let's pass options to the assembler via optional 
option :) - temporary enviroment variable. If assembler 
can't use it - no problem.
This is a 2 part patch. First one for GCC, second patch 
for GNU AS.

This patch fixes PR 40171 by passing optimization options
-mtune and -march to the assembler via temporary 
enviroment
variable AS_OPT_OPTION.

Part 1 (GCC)

2009-05-25  Vladimir Volynsky  <vvv@ru.ru>

	PR target/40171
	* gcc.c (process_command): Pass -mtune and -march
	options to the assembler via temporary enviroment
	variable AS_OPT_OPTION

--- gcc/gcc.c	2009-05-25 22:36:22.000000000 +0400
+++ gcc/gcc.c.vv	2009-05-25 22:41:14.000000000 +0400
@@ -3744,6 +3744,20 @@ process_command (int argc, const 
char **
 	print_multi_os_directory = 1;
       else if (! strcmp (argv[i], 
"-print-sysroot-headers-suffix"))
 	print_sysroot_headers_suffix = 1;
+      else if (! strncmp (argv[i], "-mtune", 6))
+	{
+	  /* Pass -mtune not obligatory option to the assembler.
+	     Used temporary enviroment variable AS_OPT_OPTION.
+	     This option can be overridden by assembler option 
-Wa, */
+	setenv("AS_OPT_OPTION",argv[i],1);
+	}
+      else if (! strncmp (argv[i], "-march", 6))
+	{
+	  /* Pass -march option to the assembler.
+	     Used temporary enviroment variable AS_OPT_OPTION.
+	     This option can be overridden by assembler option 
-Wa, */
+	setenv("AS_OPT_OPTION",argv[i],1);
+	}
       else if (! strncmp (argv[i], "-Wa,", 4))
 	{
 	  int prev, j;

Part 2 (BINUTILS)

2009-05-25  Vladimir Volynsky  <vvv@ru.ru>

	PR target/40171
	* as.c (parse_args): Add option from enviroment
	variable AS_OPT_OPTION

--- gas/as.c	2009-05-25 22:45:11.000000000 +0400
+++ gas/as.c.vv	2009-05-25 22:46:10.000000000 +0400
@@ -517,6 +517,12 @@ parse_args (int * pargc, char *** 
pargv)
   old_argc = *pargc;
   old_argv = *pargv;
 
+  /* Add enviroment variable AS_OPT_OPTION to local copy 
of the old argv.  */
+  if( getenv("AS_OPT_OPTION")!=NULL )
+ 	{
+ 	old_argv[old_argc++]=getenv("AS_OPT_OPTION");
+	}
+
   /* Initialize a new argv that contains no options.  */
   new_argv = xmalloc (sizeof (char *) * (old_argc + 1));
   new_argv[0] = old_argv[0];


Vladimir.
---
Professional hosting for everyone - http://www.host.ru