Commit d3d099b40c122550279789200263346f120f6909
2013-07-02T16:11:38
little-endian ppc64 support
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diff --git a/ChangeLog b/ChangeLog
index 837fa88..866fa05 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2013-06-24 Alan Modra <amodra@gmail.com>
+
+ * src/powerpc/ffi.c (ffi_prep_args_SYSV): Move var declaration
+ before statements.
+ (ffi_prep_args64): Support little-endian.
+ (ffi_closure_helper_SYSV, ffi_closure_helper_LINUX64): Likewise.
+ * src/powerpc/linux64_closure.S (ffi_closure_LINUX64): Likewise.
+ * src/powerpc/ppc_closure.S (ffi_closure_SYSV): Likewise.
+
2013-06-12 Mischa Jonker <mjonker@synopsys.com>
* configure.ac: Add support for ARC.
@@ -354,7 +363,7 @@
(required for shared libs on cygwin/mingw).
* Makefile.in: Rebuilt.
-2012-10-31 Alan Modra <amodra@gmail.com>
+2012-10-31 Alan Modra <amodra@gmail.co>
* src/powerpc/linux64_closure.S: Add new ABI support.
* src/powerpc/linux64.S: Likewise.
diff --git a/src/powerpc/ffi.c b/src/powerpc/ffi.c
index 54f2731..3156e9c 100644
--- a/src/powerpc/ffi.c
+++ b/src/powerpc/ffi.c
@@ -132,6 +132,9 @@ ffi_prep_args_SYSV (extended_cif *ecif, unsigned *const stack)
int i;
ffi_type **ptr;
+#ifndef __NO_FPRS__
+ double double_tmp;
+#endif
union {
void **v;
char **c;
@@ -151,7 +154,6 @@ ffi_prep_args_SYSV (extended_cif *ecif, unsigned *const stack)
gpr_base.u = stacktop.u - ASM_NEEDS_REGISTERS - NUM_GPR_ARG_REGISTERS;
intarg_count = 0;
#ifndef __NO_FPRS__
- double double_tmp;
fpr_base.d = gpr_base.d - NUM_FPR_ARG_REGISTERS;
fparg_count = 0;
copy_space.c = ((flags & FLAG_FP_ARGUMENTS) ? fpr_base.c : gpr_base.c);
@@ -553,11 +555,12 @@ ffi_prep_args64 (extended_cif *ecif, unsigned long *const stack)
{
char *where = next_arg.c;
+#ifndef __LITTLE_ENDIAN__
/* Structures with size less than eight bytes are passed
left-padded. */
if ((*ptr)->size < 8)
where += 8 - (*ptr)->size;
-
+#endif
memcpy (where, *p_argv.c, (*ptr)->size);
next_arg.ul += words;
if (next_arg.ul == gpr_end.ul)
@@ -1236,6 +1239,7 @@ ffi_closure_helper_SYSV (ffi_closure *closure, void *rvalue,
case FFI_TYPE_SINT8:
case FFI_TYPE_UINT8:
+#ifndef __LITTLE_ENDIAN__
/* there are 8 gpr registers used to pass values */
if (ng < 8)
{
@@ -1249,9 +1253,11 @@ ffi_closure_helper_SYSV (ffi_closure *closure, void *rvalue,
pst++;
}
break;
+#endif
case FFI_TYPE_SINT16:
case FFI_TYPE_UINT16:
+#ifndef __LITTLE_ENDIAN__
/* there are 8 gpr registers used to pass values */
if (ng < 8)
{
@@ -1265,6 +1271,7 @@ ffi_closure_helper_SYSV (ffi_closure *closure, void *rvalue,
pst++;
}
break;
+#endif
case FFI_TYPE_SINT32:
case FFI_TYPE_UINT32:
@@ -1395,21 +1402,27 @@ ffi_closure_helper_LINUX64 (ffi_closure *closure, void *rvalue,
{
case FFI_TYPE_SINT8:
case FFI_TYPE_UINT8:
+#ifndef __LITTLE_ENDIAN__
avalue[i] = (char *) pst + 7;
pst++;
break;
+#endif
case FFI_TYPE_SINT16:
case FFI_TYPE_UINT16:
+#ifndef __LITTLE_ENDIAN__
avalue[i] = (char *) pst + 6;
pst++;
break;
+#endif
case FFI_TYPE_SINT32:
case FFI_TYPE_UINT32:
+#ifndef __LITTLE_ENDIAN__
avalue[i] = (char *) pst + 4;
pst++;
break;
+#endif
case FFI_TYPE_SINT64:
case FFI_TYPE_UINT64:
@@ -1419,11 +1432,13 @@ ffi_closure_helper_LINUX64 (ffi_closure *closure, void *rvalue,
break;
case FFI_TYPE_STRUCT:
+#ifndef __LITTLE_ENDIAN__
/* Structures with size less than eight bytes are passed
left-padded. */
if (arg_types[i]->size < 8)
avalue[i] = (char *) pst + 8 - arg_types[i]->size;
else
+#endif
avalue[i] = pst;
pst += (arg_types[i]->size + 7) / 8;
break;
diff --git a/src/powerpc/linux64_closure.S b/src/powerpc/linux64_closure.S
index b1e1219..ac4a226 100644
--- a/src/powerpc/linux64_closure.S
+++ b/src/powerpc/linux64_closure.S
@@ -132,7 +132,11 @@ ffi_closure_LINUX64:
blr
nop
# case FFI_TYPE_INT
+#ifdef __LITTLE_ENDIAN__
+ lwa %r3, 112+0(%r1)
+#else
lwa %r3, 112+4(%r1)
+#endif
mtlr %r0
addi %r1, %r1, 240
blr
@@ -152,33 +156,57 @@ ffi_closure_LINUX64:
lfd %f2, 112+8(%r1)
b .Lfinish
# case FFI_TYPE_UINT8
+#ifdef __LITTLE_ENDIAN__
+ lbz %r3, 112+0(%r1)
+#else
lbz %r3, 112+7(%r1)
+#endif
mtlr %r0
addi %r1, %r1, 240
blr
# case FFI_TYPE_SINT8
+#ifdef __LITTLE_ENDIAN__
+ lbz %r3, 112+0(%r1)
+#else
lbz %r3, 112+7(%r1)
+#endif
extsb %r3,%r3
mtlr %r0
b .Lfinish
# case FFI_TYPE_UINT16
+#ifdef __LITTLE_ENDIAN__
+ lhz %r3, 112+0(%r1)
+#else
lhz %r3, 112+6(%r1)
+#endif
mtlr %r0
.Lfinish:
addi %r1, %r1, 240
blr
# case FFI_TYPE_SINT16
+#ifdef __LITTLE_ENDIAN__
+ lha %r3, 112+0(%r1)
+#else
lha %r3, 112+6(%r1)
+#endif
mtlr %r0
addi %r1, %r1, 240
blr
# case FFI_TYPE_UINT32
+#ifdef __LITTLE_ENDIAN__
+ lwz %r3, 112+0(%r1)
+#else
lwz %r3, 112+4(%r1)
+#endif
mtlr %r0
addi %r1, %r1, 240
blr
# case FFI_TYPE_SINT32
+#ifdef __LITTLE_ENDIAN__
+ lwa %r3, 112+0(%r1)
+#else
lwa %r3, 112+4(%r1)
+#endif
mtlr %r0
addi %r1, %r1, 240
blr
diff --git a/src/powerpc/ppc_closure.S b/src/powerpc/ppc_closure.S
index 41fb885..c3349df 100644
--- a/src/powerpc/ppc_closure.S
+++ b/src/powerpc/ppc_closure.S
@@ -159,25 +159,41 @@ ENTRY(ffi_closure_SYSV)
#endif
# case FFI_TYPE_UINT8
+#ifdef __LITTLE_ENDIAN__
+ lbz %r3,112+0(%r1)
+#else
lbz %r3,112+3(%r1)
+#endif
mtlr %r0
addi %r1,%r1,144
blr
# case FFI_TYPE_SINT8
+#ifdef __LITTLE_ENDIAN__
+ lbz %r3,112+0(%r1)
+#else
lbz %r3,112+3(%r1)
+#endif
extsb %r3,%r3
mtlr %r0
b .Lfinish
# case FFI_TYPE_UINT16
+#ifdef __LITTLE_ENDIAN__
+ lhz %r3,112+0(%r1)
+#else
lhz %r3,112+2(%r1)
+#endif
mtlr %r0
addi %r1,%r1,144
blr
# case FFI_TYPE_SINT16
+#ifdef __LITTLE_ENDIAN__
+ lha %r3,112+0(%r1)
+#else
lha %r3,112+2(%r1)
+#endif
mtlr %r0
addi %r1,%r1,144
blr
@@ -239,9 +255,15 @@ ENTRY(ffi_closure_SYSV)
# case FFI_SYSV_TYPE_SMALL_STRUCT + 3. Three byte struct.
lwz %r3,112+0(%r1)
+#ifdef __LITTLE_ENDIAN__
+ mtlr %r0
+ addi %r1,%r1,144
+ blr
+#else
srwi %r3,%r3,8
mtlr %r0
b .Lfinish
+#endif
# case FFI_SYSV_TYPE_SMALL_STRUCT + 4. Four byte struct.
lwz %r3,112+0(%r1)
@@ -252,20 +274,35 @@ ENTRY(ffi_closure_SYSV)
# case FFI_SYSV_TYPE_SMALL_STRUCT + 5. Five byte struct.
lwz %r3,112+0(%r1)
lwz %r4,112+4(%r1)
+#ifdef __LITTLE_ENDIAN__
+ mtlr %r0
+ b .Lfinish
+#else
li %r5,24
b .Lstruct567
+#endif
# case FFI_SYSV_TYPE_SMALL_STRUCT + 6. Six byte struct.
lwz %r3,112+0(%r1)
lwz %r4,112+4(%r1)
+#ifdef __LITTLE_ENDIAN__
+ mtlr %r0
+ b .Lfinish
++#else
li %r5,16
b .Lstruct567
+#endif
# case FFI_SYSV_TYPE_SMALL_STRUCT + 7. Seven byte struct.
lwz %r3,112+0(%r1)
lwz %r4,112+4(%r1)
+#ifdef __LITTLE_ENDIAN__
+ mtlr %r0
+ b .Lfinish
+#else
li %r5,8
b .Lstruct567
+#endif
# case FFI_SYSV_TYPE_SMALL_STRUCT + 8. Eight byte struct.
lwz %r3,112+0(%r1)
@@ -273,6 +310,7 @@ ENTRY(ffi_closure_SYSV)
mtlr %r0
b .Lfinish
+#ifndef __LITTLE_ENDIAN__
.Lstruct567:
subfic %r6,%r5,32
srw %r4,%r4,%r5
@@ -288,7 +326,8 @@ ENTRY(ffi_closure_SYSV)
mtlr %r0
addi %r1,%r1,144
blr
-
+#endif
+
END(ffi_closure_SYSV)
.section ".eh_frame",EH_FRAME_FLAGS,@progbits