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ffi.c (ffi_prep_args_SYSV): Move var declaration before statements. 

* 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.

From-SVN: r200383
This commit is contained in:
Alan Modra 2013-06-25 09:38:47 +09:30 committed by Alan Modra
parent fe7144f48e
commit 40b45a6d76
4 changed files with 93 additions and 7 deletions
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9
libffi/ChangeLog
View File

@ -1,3 +1,12 @@
2013-06-25 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.
2013-05-22 Dominique d'Humieres <dominiq@lps.ens.fr>
Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>

24
libffi/src/powerpc/ffi.c
View File

@ -127,6 +127,9 @@ 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;
@ -146,7 +149,6 @@ 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);
@ -542,11 +544,12 @@ 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)
@ -1208,6 +1211,7 @@ 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)
{
@ -1221,9 +1225,10 @@ 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)
{
@ -1237,7 +1242,7 @@ ffi_closure_helper_SYSV (ffi_closure *closure, void *rvalue,
pst++;
}
break;
#endif
case FFI_TYPE_SINT32:
case FFI_TYPE_UINT32:
case FFI_TYPE_POINTER:
@ -1367,22 +1372,25 @@ 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:
case FFI_TYPE_POINTER:
@ -1391,11 +1399,13 @@ 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;

28
libffi/src/powerpc/linux64_closure.S
View File

@ -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

39
libffi/src/powerpc/ppc_closure.S
View File

@ -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
@ -282,6 +320,7 @@ ENTRY(ffi_closure_SYSV)
mtlr %r0
addi %r1,%r1,144
blr
#endif
.Luint128:
lwz %r6,112+12(%r1)