darwin_closure.S: Fix alignement bug, allocate 8 bytes for the result.

[thirdparty/gcc.git] / libffi / src / powerpc / darwin_closure.S

diff --git a/libffi/src/powerpc/darwin_closure.S b/libffi/src/powerpc/darwin_closure.S
index 5420c77cfb559a40152babf211b8350d5883e58f..9ae17d8cce8445ace060eccd97b57890b32dbed7 100644 (file)
--- a/libffi/src/powerpc/darwin_closure.S
+++ b/libffi/src/powerpc/darwin_closure.S
@@ -41,27 +41,28 @@ LFB1:
        mflr r0                 /* extract return address  */
        stw r0, 8(r1)           /* save the return address  */
 LCFI0: 
-       /* 24 Bytes (Linkage Area) */
-       /* 32 Bytes (outgoing parameter area, always reserved) */
-       /* 104 Bytes (13*8 from FPR) */ 
-       /* 4 Bytes (result)
-       /* 164 Bytes */
+       /* 24 Bytes (Linkage Area)
+          32 Bytes (outgoing parameter area, always reserved)
+          104 Bytes (13*8 from FPR)    
+          8 Bytes (result)
+          168 Bytes  */
        
-       stwu r1,-164(r1)        /* skip over caller save area  */
+       stwu r1,-176(r1)        /* skip over caller save area
+                               keep stack aligned to 16  */
 LCFI1:         
        /* we want to build up an area for the parameters passed
        in registers (both floating point and integer)  */
        
-       /* we store gpr 3 to gpr 10 (aligned to 4) */
-       /* in the parents outgoing area            */
-       stw   r3, 188(r1)
-       stw   r4, 192(r1)
-       stw   r5, 196(r1) 
-       stw   r6, 200(r1)
-       stw   r7, 204(r1)
-       stw   r8, 208(r1) 
-       stw   r9, 212(r1)
-       stw   r10, 216(r1)
+       /* we store gpr 3 to gpr 10 (aligned to 4)
+       in the parents outgoing area  */
+       stw   r3, 200(r1)
+       stw   r4, 204(r1)
+       stw   r5, 208(r1) 
+       stw   r6, 212(r1)
+       stw   r7, 216(r1)
+       stw   r8, 220(r1) 
+       stw   r9, 224(r1)
+       stw   r10, 228(r1)
 
        /* we save fpr 1 to fpr 13 (aligned to 8) */
        stfd  f1, 56(r1)
@@ -85,15 +86,15 @@ LCFI1:
        /* now load up the pointer to the result storage */
        addi r4,r1,160
        
-       /* now load up the pointer to the saved gpr registers */
-       addi r5,r1,188
+       /* now load up the pointer to the saved gpr registers  */
+       addi r5,r1,200
 
        /* now load up the pointer to the saved fpr registers */
        addi r6,r1,56
 
-       /* now load up the pointer to the outgoing parameter  */
-       /* stack in the previous frame */
-       addi r7,r1,220
+       /* now load up the pointer to the outgoing parameter
+       stack in the previous frame  */
+       addi r7,r1,232
        
        /* make the call */
        bl L(_ffi_closure_helper_DARWIN)
@@ -182,9 +183,9 @@ LFE1:
 /* case void / done     */
 .L44:
        
-       addi r1,r1,164          /* restore stack pointer */
-       lwz r0,8(r1)            /* get return address */
-       mtlr r0                 /* reset link register */
+       addi r1,r1,176          /* restore stack pointer  */
+       lwz r0,8(r1)            /* get return address  */
+       mtlr r0                 /* reset link register  */
        blr
        
 /* END(ffi_closure_ASM)  */
@@ -223,7 +224,7 @@ LASFDE1:
        .set    L$set$3,LCFI1-LCFI0
        .long   L$set$3
        .byte   0xe     ; DW_CFA_def_cfa_offset
-       .byte   164,1   ; uleb128 164
+       .byte   176,1   ; uleb128 176
        .byte   0x4     ; DW_CFA_advance_loc4
        .set    L$set$4,LCFI0-LFB1
        .long   L$set$4