re PR target/30417 (Section .data cannot be moved with -mmcu=atmega88)

	PR target/30417
	* config/avr/gen-avr-mmcu-specs.c (print_mcu):
	[*link_data_start]: Wrap -Tdata into %{!Tdata:...}.
	[*link_text_start]: Wrap -Ttext into %{!Ttext:...}.

From-SVN: r237639

gcc/ChangeLog

 2016-06-21  Georg-Johann Lay  <avr@gjlay.de>
 
+	PR target/30417
+	* config/avr/gen-avr-mmcu-specs.c (print_mcu):
+	[*link_data_start]: Wrap -Tdata into %{!Tdata:...}.
+	[*link_text_start]: Wrap -Ttext into %{!Ttext:...}.
+
+2016-06-21  Georg-Johann Lay  <avr@gjlay.de>
+
 	PR target/71103
 	* config/avr/avr.md (movqi): Only handle loading subreg:qi of
 	constant addresses if can_create_pseudo_p.

gcc/config/avr/gen-avr-mmcu-specs.c

@@ -27,7 +27,7 @@
 
 #include "avr-devices.c"
 
-// Get rid of "defaults.h".  We just need tm.h for `WITH_AVRLIBS' and
+// Get rid of "defaults.h".  We just need tm.h for `WITH_AVRLIBC' and
 // and `WITH_RTEMS'.  */
 #define GCC_DEFAULTS_H
 
@@ -242,12 +242,13 @@ print_mcu (const avr_mcu_t *mcu)
       fprintf (f, "*link_data_start:\n");
       if (mcu->data_section_start
           != arch->default_data_section_start)
-        fprintf (f, "\t-Tdata 0x%lX", 0x800000UL + mcu->data_section_start);
+        fprintf (f, "\t%%{!Tdata:-Tdata 0x%lX}",
+                 0x800000UL + mcu->data_section_start);
       fprintf (f, "\n\n");
 
       fprintf (f, "*link_text_start:\n");
       if (mcu->text_section_start != 0x0)
-        fprintf (f, "\t-Ttext 0x%lX", 0UL + mcu->text_section_start);
+        fprintf (f, "\t%%{!Ttext:-Ttext 0x%lX}", 0UL + mcu->text_section_start);
       fprintf (f, "\n\n");
     }