Fix self hosted loader building. When you use a self configured gcc, it

detects and uses the gas section merge support.  As a result, a whole bunch
of new sections arrive, including .rodata.str1.8, which was not included
in our custom ldscript.ia64.  The result was a loader binary that EFI
rejected.

While here, collect the loader shell commands linker set and include it
in the data area rather than having its own section.

/boot/loader.efi was the last holdout for having a 100% self built ia64
system.

sys/boot/efi/libefi/arch/ia64/ldscript.ia64

@@ -22,9 +22,10 @@ SECTIONS
   . = ALIGN(4096);
   .data :
   {
-    *(.rodata)
-    *(.rodata1)
-    *(.set.*)
+    *(.rodata*)
+    __start_set_Xcommand_set = .;
+    *(set_Xcommand_set)
+    __stop_set_Xcommand_set = .;
     *(.ctors)
     *(.data)
     *(.data1)

sys/boot/efi/loader/Makefile

@@ -54,7 +54,6 @@ vers.o: ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version
 
 ${BASE}.efi: ${BASE}.sym
 	${OBJCOPY} -j .text \
-		-j set_Xcommand_set \
 		-j .hash \
 		-j .data \
 		-j .sdata \

sys/boot/ia64/efi/Makefile

@@ -54,7 +54,6 @@ vers.o: ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version
 
 ${BASE}.efi: ${BASE}.sym
 	${OBJCOPY} -j .text \
-		-j set_Xcommand_set \
 		-j .hash \
 		-j .data \
 		-j .sdata \

sys/boot/ia64/efi/ldscript.ia64

@@ -22,9 +22,10 @@ SECTIONS
   . = ALIGN(4096);
   .data :
   {
-    *(.rodata)
-    *(.rodata1)
-    *(.set.*)
+    *(.rodata*)
+    __start_set_Xcommand_set = .;
+    *(set_Xcommand_set)
+    __stop_set_Xcommand_set = .;
     *(.ctors)
     *(.data)
     *(.data1)