Changeset c4026aa in mainline for boot/arch/ia64/src/sal_asm.S

Timestamp:

2012-02-23T20:19:11Z (12 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

087768f

Parents:

f31aed5

Message:

Make sal_call() compliant with the ia64 ABI.

File:

• boot/arch/ia64/src/sal_asm.S (modified) (3 diffs)

boot/arch/ia64/src/sal_asm.S

@@ -29 +29 @@
 .explicit
 
+#define STACK_SCRATCH_AREA      16
+#define STACK_IN8               (0 + STACK_SCRATCH_AREA)
+#define STACK_IN9               (8 + STACK_SCRATCH_AREA)
+#define STACK_IN10              (16 + STACK_SCRATCH_AREA)
+
 .global sal_call
 
@@ -39 +44 @@
 #
 sal_call:
-        alloc loc0 = ar.pfs, 11, 5, 8, 0
+        alloc loc0 = ar.pfs, 8, 8, 8, 0
         
+        adds sp = -STACK_SCRATCH_AREA, sp
+
         mov loc1 = gp
         mov loc2 = rp
@@ -57 +64 @@
         
         ld8 loc3 = [loc3]
-        ld8 gp = [loc4] ;;
+        ld8 gp = [loc4]
+
+        adds r14 = STACK_IN8 + STACK_SCRATCH_AREA, sp
+        adds r15 = STACK_IN9 + STACK_SCRATCH_AREA, sp
+        adds r16 = STACK_IN10 + STACK_SCRATCH_AREA, sp ;;
+
+        ld8 loc5 = [r14]
+        ld8 loc6 = [r15]
+        ld8 loc7 = [r16]
         
         mov b6 = loc3 ;;
         br.call.sptk.many rp = b6
         
-        cmp.ne p7,p0 = 0, in8
-        cmp.ne p8,p0 = 0, in9
-        cmp.ne p9,p0 = 0, in10 ;;
+        cmp.ne p7,p0 = 0, loc5 
+        cmp.ne p8,p0 = 0, loc6 
+        cmp.ne p9,p0 = 0, loc7 ;;
         
-(p7)    st8 [in8] = r9
-(p8)    st8 [in9] = r10
-(p9)    st8 [in10] = r11
+(p7)    st8 [loc5] = r9
+(p8)    st8 [loc6] = r10
+(p9)    st8 [loc7] = r11
         
         mov gp = loc1
-        mov rp = loc2 ;;
+        mov rp = loc2
+
+        adds sp = STACK_SCRATCH_AREA, sp ;;
         
         mov ar.pfs = loc0
         br.ret.sptk.many rp
+