--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mozilla-ppc64le-libffi.patch Tue Mar 18 22:53:41 2014 +0100
@@ -0,0 +1,3206 @@
+# HG changeset patch
+# Parent 8dc4f9193d19bb9ab3f476cbf44366fdf5304ae4
+# User Ulrich Weigand <uweigand@de.ibm.com>
+Bug 976648 - powerpc64le-linux support - libffi backport
+
+diff --git a/js/src/ctypes/libffi/aclocal.m4 b/js/src/ctypes/libffi/aclocal.m4
+--- a/js/src/ctypes/libffi/aclocal.m4
++++ b/js/src/ctypes/libffi/aclocal.m4
+@@ -1277,31 +1277,34 @@ ia64-*-hpux*)
+ LD="${LD-ld} -64"
+ ;;
+ esac
+ fi
+ fi
+ rm -rf conftest*
+ ;;
+
+-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
++x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
+ s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+ # Find out which ABI we are using.
+ echo 'int i;' > conftest.$ac_ext
+ if AC_TRY_EVAL(ac_compile); then
+ case `/usr/bin/file conftest.o` in
+ *32-bit*)
+ case $host in
+ x86_64-*kfreebsd*-gnu)
+ LD="${LD-ld} -m elf_i386_fbsd"
+ ;;
+ x86_64-*linux*)
+ LD="${LD-ld} -m elf_i386"
+ ;;
+- ppc64-*linux*|powerpc64-*linux*)
++ powerpc64le-*linux*)
++ LD="${LD-ld} -m elf32lppclinux"
++ ;;
++ powerpc64-*linux*)
+ LD="${LD-ld} -m elf32ppclinux"
+ ;;
+ s390x-*linux*)
+ LD="${LD-ld} -m elf_s390"
+ ;;
+ sparc64-*linux*)
+ LD="${LD-ld} -m elf32_sparc"
+ ;;
+@@ -1310,17 +1313,20 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*
+ *64-bit*)
+ case $host in
+ x86_64-*kfreebsd*-gnu)
+ LD="${LD-ld} -m elf_x86_64_fbsd"
+ ;;
+ x86_64-*linux*)
+ LD="${LD-ld} -m elf_x86_64"
+ ;;
+- ppc*-*linux*|powerpc*-*linux*)
++ powerpcle-*linux*)
++ LD="${LD-ld} -m elf64lppc"
++ ;;
++ powerpc-*linux*)
+ LD="${LD-ld} -m elf64ppc"
+ ;;
+ s390*-*linux*|s390*-*tpf*)
+ LD="${LD-ld} -m elf64_s390"
+ ;;
+ sparc*-*linux*)
+ LD="${LD-ld} -m elf64_sparc"
+ ;;
+diff --git a/js/src/ctypes/libffi/configure b/js/src/ctypes/libffi/configure
+--- a/js/src/ctypes/libffi/configure
++++ b/js/src/ctypes/libffi/configure
+@@ -6293,17 +6293,17 @@ ia64-*-hpux*)
+ LD="${LD-ld} -64"
+ ;;
+ esac
+ fi
+ fi
+ rm -rf conftest*
+ ;;
+
+-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
++x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
+ s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+ # Find out which ABI we are using.
+ echo 'int i;' > conftest.$ac_ext
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+@@ -6311,17 +6311,20 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*
+ *32-bit*)
+ case $host in
+ x86_64-*kfreebsd*-gnu)
+ LD="${LD-ld} -m elf_i386_fbsd"
+ ;;
+ x86_64-*linux*)
+ LD="${LD-ld} -m elf_i386"
+ ;;
+- ppc64-*linux*|powerpc64-*linux*)
++ powerpc64le-*linux*)
++ LD="${LD-ld} -m elf32lppclinux"
++ ;;
++ powerpc64-*linux*)
+ LD="${LD-ld} -m elf32ppclinux"
+ ;;
+ s390x-*linux*)
+ LD="${LD-ld} -m elf_s390"
+ ;;
+ sparc64-*linux*)
+ LD="${LD-ld} -m elf32_sparc"
+ ;;
+@@ -6330,17 +6333,20 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*
+ *64-bit*)
+ case $host in
+ x86_64-*kfreebsd*-gnu)
+ LD="${LD-ld} -m elf_x86_64_fbsd"
+ ;;
+ x86_64-*linux*)
+ LD="${LD-ld} -m elf_x86_64"
+ ;;
+- ppc*-*linux*|powerpc*-*linux*)
++ powerpcle-*linux*)
++ LD="${LD-ld} -m elf64lppc"
++ ;;
++ powerpc-*linux*)
+ LD="${LD-ld} -m elf64ppc"
+ ;;
+ s390*-*linux*|s390*-*tpf*)
+ LD="${LD-ld} -m elf64_s390"
+ ;;
+ sparc*-*linux*)
+ LD="${LD-ld} -m elf64_sparc"
+ ;;
+diff --git a/js/src/ctypes/libffi/m4/libtool.m4 b/js/src/ctypes/libffi/m4/libtool.m4
+--- a/js/src/ctypes/libffi/m4/libtool.m4
++++ b/js/src/ctypes/libffi/m4/libtool.m4
+@@ -1262,31 +1262,34 @@ ia64-*-hpux*)
+ LD="${LD-ld} -64"
+ ;;
+ esac
+ fi
+ fi
+ rm -rf conftest*
+ ;;
+
+-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
++x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
+ s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+ # Find out which ABI we are using.
+ echo 'int i;' > conftest.$ac_ext
+ if AC_TRY_EVAL(ac_compile); then
+ case `/usr/bin/file conftest.o` in
+ *32-bit*)
+ case $host in
+ x86_64-*kfreebsd*-gnu)
+ LD="${LD-ld} -m elf_i386_fbsd"
+ ;;
+ x86_64-*linux*)
+ LD="${LD-ld} -m elf_i386"
+ ;;
+- ppc64-*linux*|powerpc64-*linux*)
++ powerpc64le-*linux*)
++ LD="${LD-ld} -m elf32lppclinux"
++ ;;
++ powerpc64-*linux*)
+ LD="${LD-ld} -m elf32ppclinux"
+ ;;
+ s390x-*linux*)
+ LD="${LD-ld} -m elf_s390"
+ ;;
+ sparc64-*linux*)
+ LD="${LD-ld} -m elf32_sparc"
+ ;;
+@@ -1295,17 +1298,20 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*
+ *64-bit*)
+ case $host in
+ x86_64-*kfreebsd*-gnu)
+ LD="${LD-ld} -m elf_x86_64_fbsd"
+ ;;
+ x86_64-*linux*)
+ LD="${LD-ld} -m elf_x86_64"
+ ;;
+- ppc*-*linux*|powerpc*-*linux*)
++ powerpcle-*linux*)
++ LD="${LD-ld} -m elf64lppc"
++ ;;
++ powerpc-*linux*)
+ LD="${LD-ld} -m elf64ppc"
+ ;;
+ s390*-*linux*|s390*-*tpf*)
+ LD="${LD-ld} -m elf64_s390"
+ ;;
+ sparc*-*linux*)
+ LD="${LD-ld} -m elf64_sparc"
+ ;;
+diff --git a/js/src/ctypes/libffi/src/powerpc/ffi.c b/js/src/ctypes/libffi/src/powerpc/ffi.c
+--- a/js/src/ctypes/libffi/src/powerpc/ffi.c
++++ b/js/src/ctypes/libffi/src/powerpc/ffi.c
+@@ -1,12 +1,14 @@
+ /* -----------------------------------------------------------------------
+- ffi.c - Copyright (c) 1998 Geoffrey Keating
+- Copyright (C) 2007, 2008 Free Software Foundation, Inc
+- Copyright (C) 2008 Red Hat, Inc
++ ffi.c - Copyright (C) 2011 Anthony Green
++ Copyright (C) 2011 Kyle Moffett
++ Copyright (C) 2008 Red Hat, Inc
++ Copyright (C) 2007, 2008 Free Software Foundation, Inc
++ Copyright (c) 1998 Geoffrey Keating
+
+ PowerPC Foreign Function Interface
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ ``Software''), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+@@ -34,42 +36,39 @@
+
+ extern void ffi_closure_SYSV (void);
+ extern void FFI_HIDDEN ffi_closure_LINUX64 (void);
+
+ enum {
+ /* The assembly depends on these exact flags. */
+ FLAG_RETURNS_SMST = 1 << (31-31), /* Used for FFI_SYSV small structs. */
+ FLAG_RETURNS_NOTHING = 1 << (31-30), /* These go in cr7 */
++#ifndef __NO_FPRS__
+ FLAG_RETURNS_FP = 1 << (31-29),
++#endif
+ FLAG_RETURNS_64BITS = 1 << (31-28),
+
+ FLAG_RETURNS_128BITS = 1 << (31-27), /* cr6 */
+- FLAG_SYSV_SMST_R4 = 1 << (31-26), /* use r4 for FFI_SYSV 8 byte
+- structs. */
+- FLAG_SYSV_SMST_R3 = 1 << (31-25), /* use r3 for FFI_SYSV 4 byte
+- structs. */
+- /* Bits (31-24) through (31-19) store shift value for SMST */
+
+ FLAG_ARG_NEEDS_COPY = 1 << (31- 7),
++ FLAG_ARG_NEEDS_PSAVE = FLAG_ARG_NEEDS_COPY, /* Used by ELFv2 */
++#ifndef __NO_FPRS__
+ FLAG_FP_ARGUMENTS = 1 << (31- 6), /* cr1.eq; specified by ABI */
++#endif
+ FLAG_4_GPR_ARGUMENTS = 1 << (31- 5),
+ FLAG_RETVAL_REFERENCE = 1 << (31- 4)
+ };
+
+ /* About the SYSV ABI. */
+-unsigned int NUM_GPR_ARG_REGISTERS = 8;
++#define ASM_NEEDS_REGISTERS 4
++#define NUM_GPR_ARG_REGISTERS 8
+ #ifndef __NO_FPRS__
+-unsigned int NUM_FPR_ARG_REGISTERS = 8;
+-#else
+-unsigned int NUM_FPR_ARG_REGISTERS = 0;
++# define NUM_FPR_ARG_REGISTERS 8
+ #endif
+
+-enum { ASM_NEEDS_REGISTERS = 4 };
+-
+ /* ffi_prep_args_SYSV is called by the assembly routine once stack space
+ has been allocated for the function's arguments.
+
+ The stack layout we want looks like this:
+
+ | Return address from ffi_call_SYSV 4bytes | higher addresses
+ |--------------------------------------------|
+ | Previous backchain pointer 4 | stack pointer here
+@@ -108,100 +107,119 @@ ffi_prep_args_SYSV (extended_cif *ecif,
+ /* 'stacktop' points at the previous backchain pointer. */
+ valp stacktop;
+
+ /* 'gpr_base' points at the space for gpr3, and grows upwards as
+ we use GPR registers. */
+ valp gpr_base;
+ int intarg_count;
+
++#ifndef __NO_FPRS__
+ /* 'fpr_base' points at the space for fpr1, and grows upwards as
+ we use FPR registers. */
+ valp fpr_base;
+ int fparg_count;
++#endif
+
+ /* 'copy_space' grows down as we put structures in it. It should
+ stay 16-byte aligned. */
+ valp copy_space;
+
+ /* 'next_arg' grows up as we put parameters in it. */
+ valp next_arg;
+
+- int i, ii MAYBE_UNUSED;
++ int i;
+ ffi_type **ptr;
++#ifndef __NO_FPRS__
+ double double_tmp;
++#endif
+ union {
+ void **v;
+ char **c;
+ signed char **sc;
+ unsigned char **uc;
+ signed short **ss;
+ unsigned short **us;
+ unsigned int **ui;
+ long long **ll;
+ float **f;
+ double **d;
+ } p_argv;
+ size_t struct_copy_size;
+ unsigned gprvalue;
+
+- if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT)
+- NUM_FPR_ARG_REGISTERS = 0;
+-
+ stacktop.c = (char *) stack + bytes;
+ gpr_base.u = stacktop.u - ASM_NEEDS_REGISTERS - NUM_GPR_ARG_REGISTERS;
+ intarg_count = 0;
++#ifndef __NO_FPRS__
+ 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);
++#else
++ copy_space.c = gpr_base.c;
++#endif
+ next_arg.u = stack + 2;
+
+ /* Check that everything starts aligned properly. */
+- FFI_ASSERT (((unsigned) (char *) stack & 0xF) == 0);
+- FFI_ASSERT (((unsigned) copy_space.c & 0xF) == 0);
+- FFI_ASSERT (((unsigned) stacktop.c & 0xF) == 0);
++ FFI_ASSERT (((unsigned long) (char *) stack & 0xF) == 0);
++ FFI_ASSERT (((unsigned long) copy_space.c & 0xF) == 0);
++ FFI_ASSERT (((unsigned long) stacktop.c & 0xF) == 0);
+ FFI_ASSERT ((bytes & 0xF) == 0);
+ FFI_ASSERT (copy_space.c >= next_arg.c);
+
+ /* Deal with return values that are actually pass-by-reference. */
+ if (flags & FLAG_RETVAL_REFERENCE)
+ {
+ *gpr_base.u++ = (unsigned long) (char *) ecif->rvalue;
+ intarg_count++;
+ }
+
+ /* Now for the arguments. */
+ p_argv.v = ecif->avalue;
+ for (ptr = ecif->cif->arg_types, i = ecif->cif->nargs;
+ i > 0;
+ i--, ptr++, p_argv.v++)
+ {
+- switch ((*ptr)->type)
+- {
++ unsigned short typenum = (*ptr)->type;
++
++ /* We may need to handle some values depending on ABI */
++ if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT) {
++ if (typenum == FFI_TYPE_FLOAT)
++ typenum = FFI_TYPE_UINT32;
++ if (typenum == FFI_TYPE_DOUBLE)
++ typenum = FFI_TYPE_UINT64;
++ if (typenum == FFI_TYPE_LONGDOUBLE)
++ typenum = FFI_TYPE_UINT128;
++ } else if (ecif->cif->abi != FFI_LINUX) {
++#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
++ if (typenum == FFI_TYPE_LONGDOUBLE)
++ typenum = FFI_TYPE_STRUCT;
++#endif
++ }
++
++ /* Now test the translated value */
++ switch (typenum) {
++#ifndef __NO_FPRS__
+ case FFI_TYPE_FLOAT:
+ /* With FFI_LINUX_SOFT_FLOAT floats are handled like UINT32. */
+- if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT)
+- goto soft_float_prep;
+ double_tmp = **p_argv.f;
+ if (fparg_count >= NUM_FPR_ARG_REGISTERS)
+ {
+ *next_arg.f = (float) double_tmp;
+ next_arg.u += 1;
+ intarg_count++;
+ }
+ else
+ *fpr_base.d++ = double_tmp;
+ fparg_count++;
+ FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
+ break;
+
+ case FFI_TYPE_DOUBLE:
+ /* With FFI_LINUX_SOFT_FLOAT doubles are handled like UINT64. */
+- if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT)
+- goto soft_double_prep;
+ double_tmp = **p_argv.d;
+
+ if (fparg_count >= NUM_FPR_ARG_REGISTERS)
+ {
+ if (intarg_count >= NUM_GPR_ARG_REGISTERS
+ && intarg_count % 2 != 0)
+ {
+ intarg_count++;
+@@ -213,53 +231,16 @@ ffi_prep_args_SYSV (extended_cif *ecif,
+ else
+ *fpr_base.d++ = double_tmp;
+ fparg_count++;
+ FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
+ break;
+
+ #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+ case FFI_TYPE_LONGDOUBLE:
+- if ((ecif->cif->abi != FFI_LINUX)
+- && (ecif->cif->abi != FFI_LINUX_SOFT_FLOAT))
+- goto do_struct;
+- /* The soft float ABI for long doubles works like this,
+- a long double is passed in four consecutive gprs if available.
+- A maximum of 2 long doubles can be passed in gprs.
+- If we do not have 4 gprs left, the long double is passed on the
+- stack, 4-byte aligned. */
+- if (ecif->cif->abi == FFI_LINUX_SOFT_FLOAT)
+- {
+- unsigned int int_tmp = (*p_argv.ui)[0];
+- if (intarg_count >= NUM_GPR_ARG_REGISTERS - 3)
+- {
+- if (intarg_count < NUM_GPR_ARG_REGISTERS)
+- intarg_count += NUM_GPR_ARG_REGISTERS - intarg_count;
+- *next_arg.u = int_tmp;
+- next_arg.u++;
+- for (ii = 1; ii < 4; ii++)
+- {
+- int_tmp = (*p_argv.ui)[ii];
+- *next_arg.u = int_tmp;
+- next_arg.u++;
+- }
+- }
+- else
+- {
+- *gpr_base.u++ = int_tmp;
+- for (ii = 1; ii < 4; ii++)
+- {
+- int_tmp = (*p_argv.ui)[ii];
+- *gpr_base.u++ = int_tmp;
+- }
+- }
+- intarg_count +=4;
+- }
+- else
+- {
+ double_tmp = (*p_argv.d)[0];
+
+ if (fparg_count >= NUM_FPR_ARG_REGISTERS - 1)
+ {
+ if (intarg_count >= NUM_GPR_ARG_REGISTERS
+ && intarg_count % 2 != 0)
+ {
+ intarg_count++;
+@@ -275,23 +256,50 @@ ffi_prep_args_SYSV (extended_cif *ecif,
+ {
+ *fpr_base.d++ = double_tmp;
+ double_tmp = (*p_argv.d)[1];
+ *fpr_base.d++ = double_tmp;
+ }
+
+ fparg_count += 2;
+ FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
+- }
+ break;
+ #endif
++#endif /* have FPRs */
++
++ /*
++ * The soft float ABI for long doubles works like this, a long double
++ * is passed in four consecutive GPRs if available. A maximum of 2
++ * long doubles can be passed in gprs. If we do not have 4 GPRs
++ * left, the long double is passed on the stack, 4-byte aligned.
++ */
++ case FFI_TYPE_UINT128: {
++ unsigned int int_tmp = (*p_argv.ui)[0];
++ unsigned int ii;
++ if (intarg_count >= NUM_GPR_ARG_REGISTERS - 3) {
++ if (intarg_count < NUM_GPR_ARG_REGISTERS)
++ intarg_count += NUM_GPR_ARG_REGISTERS - intarg_count;
++ *(next_arg.u++) = int_tmp;
++ for (ii = 1; ii < 4; ii++) {
++ int_tmp = (*p_argv.ui)[ii];
++ *(next_arg.u++) = int_tmp;
++ }
++ } else {
++ *(gpr_base.u++) = int_tmp;
++ for (ii = 1; ii < 4; ii++) {
++ int_tmp = (*p_argv.ui)[ii];
++ *(gpr_base.u++) = int_tmp;
++ }
++ }
++ intarg_count += 4;
++ break;
++ }
+
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+- soft_double_prep:
+ if (intarg_count == NUM_GPR_ARG_REGISTERS-1)
+ intarg_count++;
+ if (intarg_count >= NUM_GPR_ARG_REGISTERS)
+ {
+ if (intarg_count % 2 != 0)
+ {
+ intarg_count++;
+ next_arg.u++;
+@@ -314,19 +322,16 @@ ffi_prep_args_SYSV (extended_cif *ecif,
+ gpr_base.u++;
+ }
+ *gpr_base.ll++ = **p_argv.ll;
+ }
+ intarg_count += 2;
+ break;
+
+ case FFI_TYPE_STRUCT:
+-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+- do_struct:
+-#endif
+ struct_copy_size = ((*ptr)->size + 15) & ~0xF;
+ copy_space.c -= struct_copy_size;
+ memcpy (copy_space.c, *p_argv.c, (*ptr)->size);
+
+ gprvalue = (unsigned long) copy_space.c;
+
+ FFI_ASSERT (copy_space.c > next_arg.c);
+ FFI_ASSERT (flags & FLAG_ARG_NEEDS_COPY);
+@@ -344,45 +349,91 @@ ffi_prep_args_SYSV (extended_cif *ecif,
+ case FFI_TYPE_SINT16:
+ gprvalue = **p_argv.ss;
+ goto putgpr;
+
+ case FFI_TYPE_INT:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_POINTER:
+- soft_float_prep:
+
+ gprvalue = **p_argv.ui;
+
+ putgpr:
+ if (intarg_count >= NUM_GPR_ARG_REGISTERS)
+ *next_arg.u++ = gprvalue;
+ else
+ *gpr_base.u++ = gprvalue;
+ intarg_count++;
+ break;
+ }
+ }
+
+ /* Check that we didn't overrun the stack... */
+ FFI_ASSERT (copy_space.c >= next_arg.c);
+ FFI_ASSERT (gpr_base.u <= stacktop.u - ASM_NEEDS_REGISTERS);
++ /* The assert below is testing that the number of integer arguments agrees
++ with the number found in ffi_prep_cif_machdep(). However, intarg_count
++ is incremented whenever we place an FP arg on the stack, so account for
++ that before our assert test. */
++#ifndef __NO_FPRS__
++ if (fparg_count > NUM_FPR_ARG_REGISTERS)
++ intarg_count -= fparg_count - NUM_FPR_ARG_REGISTERS;
+ FFI_ASSERT (fpr_base.u
+ <= stacktop.u - ASM_NEEDS_REGISTERS - NUM_GPR_ARG_REGISTERS);
++#endif
+ FFI_ASSERT (flags & FLAG_4_GPR_ARGUMENTS || intarg_count <= 4);
+ }
+
+ /* About the LINUX64 ABI. */
+ enum {
+ NUM_GPR_ARG_REGISTERS64 = 8,
+ NUM_FPR_ARG_REGISTERS64 = 13
+ };
+ enum { ASM_NEEDS_REGISTERS64 = 4 };
+
++#if _CALL_ELF == 2
++static unsigned int
++discover_homogeneous_aggregate (const ffi_type *t, unsigned int *elnum)
++{
++ switch (t->type)
++ {
++ case FFI_TYPE_FLOAT:
++ case FFI_TYPE_DOUBLE:
++ *elnum = 1;
++ return (int) t->type;
++
++ case FFI_TYPE_STRUCT:;
++ {
++ unsigned int base_elt = 0, total_elnum = 0;
++ ffi_type **el = t->elements;
++ while (*el)
++ {
++ unsigned int el_elt, el_elnum = 0;
++ el_elt = discover_homogeneous_aggregate (*el, &el_elnum);
++ if (el_elt == 0
++ || (base_elt && base_elt != el_elt))
++ return 0;
++ base_elt = el_elt;
++ total_elnum += el_elnum;
++ if (total_elnum > 8)
++ return 0;
++ el++;
++ }
++ *elnum = total_elnum;
++ return base_elt;
++ }
++
++ default:
++ return 0;
++ }
++}
++#endif
++
++
+ /* ffi_prep_args64 is called by the assembly routine once stack space
+ has been allocated for the function's arguments.
+
+ The stack layout we want looks like this:
+
+ | Ret addr from ffi_call_LINUX64 8bytes | higher addresses
+ |--------------------------------------------|
+ | CR save area 8bytes |
+@@ -418,141 +469,216 @@ ffi_prep_args64 (extended_cif *ecif, uns
+ const unsigned long bytes = ecif->cif->bytes;
+ const unsigned long flags = ecif->cif->flags;
+
+ typedef union {
+ char *c;
+ unsigned long *ul;
+ float *f;
+ double *d;
++ size_t p;
+ } valp;
+
+ /* 'stacktop' points at the previous backchain pointer. */
+ valp stacktop;
+
+ /* 'next_arg' points at the space for gpr3, and grows upwards as
+ we use GPR registers, then continues at rest. */
+ valp gpr_base;
+ valp gpr_end;
+ valp rest;
+ valp next_arg;
+
+ /* 'fpr_base' points at the space for fpr3, and grows upwards as
+ we use FPR registers. */
+ valp fpr_base;
+- int fparg_count;
++ unsigned int fparg_count;
+
+- int i, words;
++ unsigned int i, words, nargs, nfixedargs;
+ ffi_type **ptr;
+ double double_tmp;
+ union {
+ void **v;
+ char **c;
+ signed char **sc;
+ unsigned char **uc;
+ signed short **ss;
+ unsigned short **us;
+ signed int **si;
+ unsigned int **ui;
+ unsigned long **ul;
+ float **f;
+ double **d;
+ } p_argv;
+ unsigned long gprvalue;
++#ifdef __STRUCT_PARM_ALIGN__
++ unsigned long align;
++#endif
+
+ stacktop.c = (char *) stack + bytes;
+ gpr_base.ul = stacktop.ul - ASM_NEEDS_REGISTERS64 - NUM_GPR_ARG_REGISTERS64;
+ gpr_end.ul = gpr_base.ul + NUM_GPR_ARG_REGISTERS64;
++#if _CALL_ELF == 2
++ rest.ul = stack + 4 + NUM_GPR_ARG_REGISTERS64;
++#else
+ rest.ul = stack + 6 + NUM_GPR_ARG_REGISTERS64;
++#endif
+ fpr_base.d = gpr_base.d - NUM_FPR_ARG_REGISTERS64;
+ fparg_count = 0;
+ next_arg.ul = gpr_base.ul;
+
+ /* Check that everything starts aligned properly. */
+ FFI_ASSERT (((unsigned long) (char *) stack & 0xF) == 0);
+ FFI_ASSERT (((unsigned long) stacktop.c & 0xF) == 0);
+ FFI_ASSERT ((bytes & 0xF) == 0);
+
+ /* Deal with return values that are actually pass-by-reference. */
+ if (flags & FLAG_RETVAL_REFERENCE)
+ *next_arg.ul++ = (unsigned long) (char *) ecif->rvalue;
+
+ /* Now for the arguments. */
+ p_argv.v = ecif->avalue;
+- for (ptr = ecif->cif->arg_types, i = ecif->cif->nargs;
+- i > 0;
+- i--, ptr++, p_argv.v++)
++ nargs = ecif->cif->nargs;
++ nfixedargs = ecif->cif->nfixedargs;
++ for (ptr = ecif->cif->arg_types, i = 0;
++ i < nargs;
++ i++, ptr++, p_argv.v++)
+ {
++ unsigned int elt, elnum;
++
+ switch ((*ptr)->type)
+ {
+ case FFI_TYPE_FLOAT:
+ double_tmp = **p_argv.f;
+- *next_arg.f = (float) double_tmp;
++ if (fparg_count < NUM_FPR_ARG_REGISTERS64 && i < nfixedargs)
++ *fpr_base.d++ = double_tmp;
++ else
++ *next_arg.f = (float) double_tmp;
+ if (++next_arg.ul == gpr_end.ul)
+ next_arg.ul = rest.ul;
+- if (fparg_count < NUM_FPR_ARG_REGISTERS64)
+- *fpr_base.d++ = double_tmp;
+ fparg_count++;
+ FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
+ break;
+
+ case FFI_TYPE_DOUBLE:
+ double_tmp = **p_argv.d;
+- *next_arg.d = double_tmp;
++ if (fparg_count < NUM_FPR_ARG_REGISTERS64 && i < nfixedargs)
++ *fpr_base.d++ = double_tmp;
++ else
++ *next_arg.d = double_tmp;
+ if (++next_arg.ul == gpr_end.ul)
+ next_arg.ul = rest.ul;
+- if (fparg_count < NUM_FPR_ARG_REGISTERS64)
+- *fpr_base.d++ = double_tmp;
+ fparg_count++;
+ FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
+ break;
+
+ #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+ case FFI_TYPE_LONGDOUBLE:
+ double_tmp = (*p_argv.d)[0];
+- *next_arg.d = double_tmp;
++ if (fparg_count < NUM_FPR_ARG_REGISTERS64 && i < nfixedargs)
++ *fpr_base.d++ = double_tmp;
++ else
++ *next_arg.d = double_tmp;
+ if (++next_arg.ul == gpr_end.ul)
+ next_arg.ul = rest.ul;
+- if (fparg_count < NUM_FPR_ARG_REGISTERS64)
+- *fpr_base.d++ = double_tmp;
+ fparg_count++;
+ double_tmp = (*p_argv.d)[1];
+- *next_arg.d = double_tmp;
++ if (fparg_count < NUM_FPR_ARG_REGISTERS64 && i < nfixedargs)
++ *fpr_base.d++ = double_tmp;
++ else
++ *next_arg.d = double_tmp;
+ if (++next_arg.ul == gpr_end.ul)
+ next_arg.ul = rest.ul;
+- if (fparg_count < NUM_FPR_ARG_REGISTERS64)
+- *fpr_base.d++ = double_tmp;
+ fparg_count++;
+ FFI_ASSERT (__LDBL_MANT_DIG__ == 106);
+ FFI_ASSERT (flags & FLAG_FP_ARGUMENTS);
+ break;
+ #endif
+
+ case FFI_TYPE_STRUCT:
+- words = ((*ptr)->size + 7) / 8;
+- if (next_arg.ul >= gpr_base.ul && next_arg.ul + words > gpr_end.ul)
++#ifdef __STRUCT_PARM_ALIGN__
++ align = (*ptr)->alignment;
++ if (align > __STRUCT_PARM_ALIGN__)
++ align = __STRUCT_PARM_ALIGN__;
++ if (align > 1)
++ next_arg.p = ALIGN (next_arg.p, align);
++#endif
++ elt = 0;
++#if _CALL_ELF == 2
++ elt = discover_homogeneous_aggregate (*ptr, &elnum);
++#endif
++ if (elt)
+ {
+- size_t first = gpr_end.c - next_arg.c;
+- memcpy (next_arg.c, *p_argv.c, first);
+- memcpy (rest.c, *p_argv.c + first, (*ptr)->size - first);
+- next_arg.c = rest.c + words * 8 - first;
++ union {
++ void *v;
++ float *f;
++ double *d;
++ } arg;
++
++ arg.v = *p_argv.v;
++ if (elt == FFI_TYPE_FLOAT)
++ {
++ do
++ {
++ double_tmp = *arg.f++;
++ if (fparg_count < NUM_FPR_ARG_REGISTERS64
++ && i < nfixedargs)
++ *fpr_base.d++ = double_tmp;
++ else
++ *next_arg.f = (float) double_tmp;
++ if (++next_arg.f == gpr_end.f)
++ next_arg.f = rest.f;
++ fparg_count++;
++ }
++ while (--elnum != 0);
++ if ((next_arg.p & 3) != 0)
++ {
++ if (++next_arg.f == gpr_end.f)
++ next_arg.f = rest.f;
++ }
++ }
++ else
++ do
++ {
++ double_tmp = *arg.d++;
++ if (fparg_count < NUM_FPR_ARG_REGISTERS64 && i < nfixedargs)
++ *fpr_base.d++ = double_tmp;
++ else
++ *next_arg.d = double_tmp;
++ if (++next_arg.d == gpr_end.d)
++ next_arg.d = rest.d;
++ fparg_count++;
++ }
++ while (--elnum != 0);
+ }
+ else
+ {
+- char *where = next_arg.c;
++ words = ((*ptr)->size + 7) / 8;
++ if (next_arg.ul >= gpr_base.ul && next_arg.ul + words > gpr_end.ul)
++ {
++ size_t first = gpr_end.c - next_arg.c;
++ memcpy (next_arg.c, *p_argv.c, first);
++ memcpy (rest.c, *p_argv.c + first, (*ptr)->size - first);
++ next_arg.c = rest.c + words * 8 - first;
++ }
++ else
++ {
++ char *where = next_arg.c;
+
+- /* Structures with size less than eight bytes are passed
+- left-padded. */
+- if ((*ptr)->size < 8)
+- where += 8 - (*ptr)->size;
+-
+- memcpy (where, *p_argv.c, (*ptr)->size);
+- next_arg.ul += words;
+- if (next_arg.ul == gpr_end.ul)
+- next_arg.ul = rest.ul;
++#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)
++ next_arg.ul = rest.ul;
++ }
+ }
+ break;
+
+ case FFI_TYPE_UINT8:
+ gprvalue = **p_argv.uc;
+ goto putgpr;
+ case FFI_TYPE_SINT8:
+ gprvalue = **p_argv.sc;
+@@ -586,53 +712,55 @@ ffi_prep_args64 (extended_cif *ecif, uns
+ FFI_ASSERT (flags & FLAG_4_GPR_ARGUMENTS
+ || (next_arg.ul >= gpr_base.ul
+ && next_arg.ul <= gpr_base.ul + 4));
+ }
+
+
+
+ /* Perform machine dependent cif processing */
+-ffi_status
+-ffi_prep_cif_machdep (ffi_cif *cif)
++static ffi_status
++ffi_prep_cif_machdep_core (ffi_cif *cif)
+ {
+ /* All this is for the SYSV and LINUX64 ABI. */
+- int i;
+ ffi_type **ptr;
+ unsigned bytes;
+- int fparg_count = 0, intarg_count = 0;
+- unsigned flags = 0;
++ unsigned i, fparg_count = 0, intarg_count = 0;
++ unsigned flags = cif->flags;
+ unsigned struct_copy_size = 0;
+ unsigned type = cif->rtype->type;
+ unsigned size = cif->rtype->size;
+
+- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
+- NUM_FPR_ARG_REGISTERS = 0;
+-
++ /* The machine-independent calculation of cif->bytes doesn't work
++ for us. Redo the calculation. */
+ if (cif->abi != FFI_LINUX64)
+ {
+- /* All the machine-independent calculation of cif->bytes will be wrong.
+- Redo the calculation for SYSV. */
+-
+ /* Space for the frame pointer, callee's LR, and the asm's temp regs. */
+ bytes = (2 + ASM_NEEDS_REGISTERS) * sizeof (int);
+
+ /* Space for the GPR registers. */
+ bytes += NUM_GPR_ARG_REGISTERS * sizeof (int);
+ }
+ else
+ {
+ /* 64-bit ABI. */
++#if _CALL_ELF == 2
++ /* Space for backchain, CR, LR, TOC and the asm's temp regs. */
++ bytes = (4 + ASM_NEEDS_REGISTERS64) * sizeof (long);
+
++ /* Space for the general registers. */
++ bytes += NUM_GPR_ARG_REGISTERS64 * sizeof (long);
++#else
+ /* Space for backchain, CR, LR, cc/ld doubleword, TOC and the asm's temp
+ regs. */
+ bytes = (6 + ASM_NEEDS_REGISTERS64) * sizeof (long);
+
+ /* Space for the mandatory parm save area and general registers. */
+ bytes += 2 * NUM_GPR_ARG_REGISTERS64 * sizeof (long);
++#endif
+ }
+
+ /* Return value handling. The rules for SYSV are as follows:
+ - 32-bit (or less) integer values are returned in gpr3;
+ - Structures of size <= 4 bytes also returned in gpr3;
+ - 64-bit integer values and structures between 5 and 8 bytes are returned
+ in gpr3 and gpr4;
+ - Single/double FP values are returned in fpr1;
+@@ -641,71 +769,93 @@ ffi_prep_cif_machdep (ffi_cif *cif)
+ - long doubles (if not equivalent to double) are returned in
+ fpr1,fpr2 for Linux and as for large structs for SysV.
+ For LINUX64:
+ - integer values in gpr3;
+ - Structures/Unions by reference;
+ - Single/double FP values in fpr1, long double in fpr1,fpr2.
+ - soft-float float/doubles are treated as UINT32/UINT64 respectivley.
+ - soft-float long doubles are returned in gpr3-gpr6. */
++ /* First translate for softfloat/nonlinux */
++ if (cif->abi == FFI_LINUX_SOFT_FLOAT)
++ {
++ if (type == FFI_TYPE_FLOAT)
++ type = FFI_TYPE_UINT32;
++ if (type == FFI_TYPE_DOUBLE)
++ type = FFI_TYPE_UINT64;
++ if (type == FFI_TYPE_LONGDOUBLE)
++ type = FFI_TYPE_UINT128;
++ }
++ else if (cif->abi != FFI_LINUX
++ && cif->abi != FFI_LINUX64)
++ {
++#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
++ if (type == FFI_TYPE_LONGDOUBLE)
++ type = FFI_TYPE_STRUCT;
++#endif
++ }
++
+ switch (type)
+ {
++#ifndef __NO_FPRS__
+ #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+ case FFI_TYPE_LONGDOUBLE:
+- if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX64
+- && cif->abi != FFI_LINUX_SOFT_FLOAT)
+- goto byref;
+ flags |= FLAG_RETURNS_128BITS;
+ /* Fall through. */
+ #endif
+ case FFI_TYPE_DOUBLE:
+ flags |= FLAG_RETURNS_64BITS;
+ /* Fall through. */
+ case FFI_TYPE_FLOAT:
+- /* With FFI_LINUX_SOFT_FLOAT no fp registers are used. */
+- if (cif->abi != FFI_LINUX_SOFT_FLOAT)
+- flags |= FLAG_RETURNS_FP;
++ flags |= FLAG_RETURNS_FP;
+ break;
++#endif
+
++ case FFI_TYPE_UINT128:
++ flags |= FLAG_RETURNS_128BITS;
++ /* Fall through. */
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+ flags |= FLAG_RETURNS_64BITS;
+ break;
+
+ case FFI_TYPE_STRUCT:
+- if (cif->abi == FFI_SYSV)
++ /*
++ * The final SYSV ABI says that structures smaller or equal 8 bytes
++ * are returned in r3/r4. The FFI_GCC_SYSV ABI instead returns them
++ * in memory.
++ *
++ * NOTE: The assembly code can safely assume that it just needs to
++ * store both r3 and r4 into a 8-byte word-aligned buffer, as
++ * we allocate a temporary buffer in ffi_call() if this flag is
++ * set.
++ */
++ if (cif->abi == FFI_SYSV && size <= 8)
+ {
+- /* The final SYSV ABI says that structures smaller or equal 8 bytes
+- are returned in r3/r4. The FFI_GCC_SYSV ABI instead returns them
+- in memory. */
+-
+- /* Treat structs with size <= 8 bytes. */
+- if (size <= 8)
++ flags |= FLAG_RETURNS_SMST;
++ break;
++ }
++#if _CALL_ELF == 2
++ if (cif->abi == FFI_LINUX64)
++ {
++ unsigned int elt, elnum;
++ elt = discover_homogeneous_aggregate (cif->rtype, &elnum);
++ if (elt)
++ {
++ if (elt == FFI_TYPE_DOUBLE)
++ flags |= FLAG_RETURNS_64BITS;
++ flags |= FLAG_RETURNS_FP | FLAG_RETURNS_SMST;
++ break;
++ }
++ if (size <= 16)
+ {
+ flags |= FLAG_RETURNS_SMST;
+- /* These structs are returned in r3. We pack the type and the
+- precalculated shift value (needed in the sysv.S) into flags.
+- The same applies for the structs returned in r3/r4. */
+- if (size <= 4)
+- {
+- flags |= FLAG_SYSV_SMST_R3;
+- flags |= 8 * (4 - size) << 8;
+- break;
+- }
+- /* These structs are returned in r3 and r4. See above. */
+- if (size <= 8)
+- {
+- flags |= FLAG_SYSV_SMST_R3 | FLAG_SYSV_SMST_R4;
+- flags |= 8 * (8 - size) << 8;
+- break;
+- }
++ break;
+ }
+ }
+-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+- byref:
+ #endif
+ intarg_count++;
+ flags |= FLAG_RETVAL_REFERENCE;
+ /* Fall through. */
+ case FFI_TYPE_VOID:
+ flags |= FLAG_RETURNS_NOTHING;
+ break;
+
+@@ -717,218 +867,334 @@ ffi_prep_cif_machdep (ffi_cif *cif)
+ if (cif->abi != FFI_LINUX64)
+ /* The first NUM_GPR_ARG_REGISTERS words of integer arguments, and the
+ first NUM_FPR_ARG_REGISTERS fp arguments, go in registers; the rest
+ goes on the stack. Structures and long doubles (if not equivalent
+ to double) are passed as a pointer to a copy of the structure.
+ Stuff on the stack needs to keep proper alignment. */
+ for (ptr = cif->arg_types, i = cif->nargs; i > 0; i--, ptr++)
+ {
+- switch ((*ptr)->type)
+- {
++ unsigned short typenum = (*ptr)->type;
++
++ /* We may need to handle some values depending on ABI */
++ if (cif->abi == FFI_LINUX_SOFT_FLOAT) {
++ if (typenum == FFI_TYPE_FLOAT)
++ typenum = FFI_TYPE_UINT32;
++ if (typenum == FFI_TYPE_DOUBLE)
++ typenum = FFI_TYPE_UINT64;
++ if (typenum == FFI_TYPE_LONGDOUBLE)
++ typenum = FFI_TYPE_UINT128;
++ } else if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX64) {
++#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
++ if (typenum == FFI_TYPE_LONGDOUBLE)
++ typenum = FFI_TYPE_STRUCT;
++#endif
++ }
++
++ switch (typenum) {
++#ifndef __NO_FPRS__
+ case FFI_TYPE_FLOAT:
+- /* With FFI_LINUX_SOFT_FLOAT floats are handled like UINT32. */
+- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
+- goto soft_float_cif;
+ fparg_count++;
+ /* floating singles are not 8-aligned on stack */
+ break;
+
+ #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+ case FFI_TYPE_LONGDOUBLE:
+- if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX_SOFT_FLOAT)
+- goto do_struct;
+- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
+- {
+- if (intarg_count >= NUM_GPR_ARG_REGISTERS - 3
+- || intarg_count < NUM_GPR_ARG_REGISTERS)
+- /* A long double in FFI_LINUX_SOFT_FLOAT can use only
+- a set of four consecutive gprs. If we have not enough,
+- we have to adjust the intarg_count value. */
+- intarg_count += NUM_GPR_ARG_REGISTERS - intarg_count;
+- intarg_count += 4;
+- break;
+- }
+- else
+- fparg_count++;
++ fparg_count++;
+ /* Fall thru */
+ #endif
+ case FFI_TYPE_DOUBLE:
+- /* With FFI_LINUX_SOFT_FLOAT doubles are handled like UINT64. */
+- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
+- goto soft_double_cif;
+ fparg_count++;
+ /* If this FP arg is going on the stack, it must be
+ 8-byte-aligned. */
+ if (fparg_count > NUM_FPR_ARG_REGISTERS
+ && intarg_count >= NUM_GPR_ARG_REGISTERS
+ && intarg_count % 2 != 0)
+ intarg_count++;
+ break;
++#endif
++ case FFI_TYPE_UINT128:
++ /*
++ * A long double in FFI_LINUX_SOFT_FLOAT can use only a set
++ * of four consecutive gprs. If we do not have enough, we
++ * have to adjust the intarg_count value.
++ */
++ if (intarg_count >= NUM_GPR_ARG_REGISTERS - 3
++ && intarg_count < NUM_GPR_ARG_REGISTERS)
++ intarg_count = NUM_GPR_ARG_REGISTERS;
++ intarg_count += 4;
++ break;
+
+ case FFI_TYPE_UINT64:
+ case FFI_TYPE_SINT64:
+- soft_double_cif:
+ /* 'long long' arguments are passed as two words, but
+ either both words must fit in registers or both go
+ on the stack. If they go on the stack, they must
+ be 8-byte-aligned.
+
+ Also, only certain register pairs can be used for
+ passing long long int -- specifically (r3,r4), (r5,r6),
+ (r7,r8), (r9,r10).
+ */
+ if (intarg_count == NUM_GPR_ARG_REGISTERS-1
+ || intarg_count % 2 != 0)
+ intarg_count++;
+ intarg_count += 2;
+ break;
+
+ case FFI_TYPE_STRUCT:
+-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+- do_struct:
+-#endif
+ /* We must allocate space for a copy of these to enforce
+ pass-by-value. Pad the space up to a multiple of 16
+ bytes (the maximum alignment required for anything under
+ the SYSV ABI). */
+ struct_copy_size += ((*ptr)->size + 15) & ~0xF;
+ /* Fall through (allocate space for the pointer). */
+
+- default:
+- soft_float_cif:
++ case FFI_TYPE_POINTER:
++ case FFI_TYPE_INT:
++ case FFI_TYPE_UINT32:
++ case FFI_TYPE_SINT32:
++ case FFI_TYPE_UINT16:
++ case FFI_TYPE_SINT16:
++ case FFI_TYPE_UINT8:
++ case FFI_TYPE_SINT8:
+ /* Everything else is passed as a 4-byte word in a GPR, either
+ the object itself or a pointer to it. */
+ intarg_count++;
+ break;
++ default:
++ FFI_ASSERT (0);
+ }
+ }
+ else
+ for (ptr = cif->arg_types, i = cif->nargs; i > 0; i--, ptr++)
+ {
++ unsigned int elt, elnum;
++#ifdef __STRUCT_PARM_ALIGN__
++ unsigned int align;
++#endif
++
+ switch ((*ptr)->type)
+ {
+ #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+ case FFI_TYPE_LONGDOUBLE:
+- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
+- intarg_count += 4;
+- else
+- {
+- fparg_count += 2;
+- intarg_count += 2;
+- }
++ fparg_count += 2;
++ intarg_count += 2;
++ if (fparg_count > NUM_FPR_ARG_REGISTERS64)
++ flags |= FLAG_ARG_NEEDS_PSAVE;
+ break;
+ #endif
+ case FFI_TYPE_FLOAT:
+ case FFI_TYPE_DOUBLE:
+ fparg_count++;
+ intarg_count++;
++ if (fparg_count > NUM_FPR_ARG_REGISTERS64)
++ flags |= FLAG_ARG_NEEDS_PSAVE;
+ break;
+
+ case FFI_TYPE_STRUCT:
++#ifdef __STRUCT_PARM_ALIGN__
++ align = (*ptr)->alignment;
++ if (align > __STRUCT_PARM_ALIGN__)
++ align = __STRUCT_PARM_ALIGN__;
++ align = align / 8;
++ if (align > 1)
++ intarg_count = ALIGN (intarg_count, align);
++#endif
+ intarg_count += ((*ptr)->size + 7) / 8;
++ elt = 0;
++#if _CALL_ELF == 2
++ elt = discover_homogeneous_aggregate (*ptr, &elnum);
++#endif
++ if (elt)
++ {
++ fparg_count += elnum;
++ if (fparg_count > NUM_FPR_ARG_REGISTERS64)
++ flags |= FLAG_ARG_NEEDS_PSAVE;
++ }
++ else
++ {
++ if (intarg_count > NUM_GPR_ARG_REGISTERS64)
++ flags |= FLAG_ARG_NEEDS_PSAVE;
++ }
+ break;
+
+- default:
++ case FFI_TYPE_POINTER:
++ case FFI_TYPE_UINT64:
++ case FFI_TYPE_SINT64:
++ case FFI_TYPE_INT:
++ case FFI_TYPE_UINT32:
++ case FFI_TYPE_SINT32:
++ case FFI_TYPE_UINT16:
++ case FFI_TYPE_SINT16:
++ case FFI_TYPE_UINT8:
++ case FFI_TYPE_SINT8:
+ /* Everything else is passed as a 8-byte word in a GPR, either
+ the object itself or a pointer to it. */
+ intarg_count++;
++ if (intarg_count > NUM_GPR_ARG_REGISTERS64)
++ flags |= FLAG_ARG_NEEDS_PSAVE;
+ break;
++ default:
++ FFI_ASSERT (0);
+ }
+ }
+
++#ifndef __NO_FPRS__
+ if (fparg_count != 0)
+ flags |= FLAG_FP_ARGUMENTS;
++#endif
+ if (intarg_count > 4)
+ flags |= FLAG_4_GPR_ARGUMENTS;
+ if (struct_copy_size != 0)
+ flags |= FLAG_ARG_NEEDS_COPY;
+
+ if (cif->abi != FFI_LINUX64)
+ {
++#ifndef __NO_FPRS__
+ /* Space for the FPR registers, if needed. */
+ if (fparg_count != 0)
+ bytes += NUM_FPR_ARG_REGISTERS * sizeof (double);
++#endif
+
+ /* Stack space. */
+ if (intarg_count > NUM_GPR_ARG_REGISTERS)
+ bytes += (intarg_count - NUM_GPR_ARG_REGISTERS) * sizeof (int);
++#ifndef __NO_FPRS__
+ if (fparg_count > NUM_FPR_ARG_REGISTERS)
+ bytes += (fparg_count - NUM_FPR_ARG_REGISTERS) * sizeof (double);
++#endif
+ }
+ else
+ {
++#ifndef __NO_FPRS__
+ /* Space for the FPR registers, if needed. */
+ if (fparg_count != 0)
+ bytes += NUM_FPR_ARG_REGISTERS64 * sizeof (double);
++#endif
+
+ /* Stack space. */
++#if _CALL_ELF == 2
++ if ((flags & FLAG_ARG_NEEDS_PSAVE) != 0)
++ bytes += intarg_count * sizeof (long);
++#else
+ if (intarg_count > NUM_GPR_ARG_REGISTERS64)
+ bytes += (intarg_count - NUM_GPR_ARG_REGISTERS64) * sizeof (long);
++#endif
+ }
+
+ /* The stack space allocated needs to be a multiple of 16 bytes. */
+ bytes = (bytes + 15) & ~0xF;
+
+ /* Add in the space for the copied structures. */
+ bytes += struct_copy_size;
+
+ cif->flags = flags;
+ cif->bytes = bytes;
+
+ return FFI_OK;
+ }
+
++ffi_status
++ffi_prep_cif_machdep (ffi_cif *cif)
++{
++ cif->nfixedargs = cif->nargs;
++ return ffi_prep_cif_machdep_core (cif);
++}
++
++ffi_status
++ffi_prep_cif_machdep_var (ffi_cif *cif,
++ unsigned int nfixedargs,
++ unsigned int ntotalargs MAYBE_UNUSED)
++{
++ cif->nfixedargs = nfixedargs;
++#if _CALL_ELF == 2
++ if (cif->abi == FFI_LINUX64)
++ cif->flags |= FLAG_ARG_NEEDS_PSAVE;
++#endif
++ return ffi_prep_cif_machdep_core (cif);
++}
++
+ extern void ffi_call_SYSV(extended_cif *, unsigned, unsigned, unsigned *,
+ void (*fn)(void));
+ extern void FFI_HIDDEN ffi_call_LINUX64(extended_cif *, unsigned long,
+ unsigned long, unsigned long *,
+ void (*fn)(void));
+
+ void
+ ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
+ {
++ /*
++ * The final SYSV ABI says that structures smaller or equal 8 bytes
++ * are returned in r3/r4. The FFI_GCC_SYSV ABI instead returns them
++ * in memory.
++ *
++ * We bounce-buffer SYSV small struct return values so that sysv.S
++ * can write r3 and r4 to memory without worrying about struct size.
++ *
++ * For ELFv2 ABI, use a bounce buffer for homogeneous structs too,
++ * for similar reasons.
++ */
++ unsigned long smst_buffer[8];
+ extended_cif ecif;
+
+ ecif.cif = cif;
+ ecif.avalue = avalue;
+
+- /* If the return value is a struct and we don't have a return */
+- /* value address then we need to make one */
+-
+- if ((rvalue == NULL) && (cif->rtype->type == FFI_TYPE_STRUCT))
+- {
+- ecif.rvalue = alloca(cif->rtype->size);
+- }
+- else
+- ecif.rvalue = rvalue;
+-
++ ecif.rvalue = rvalue;
++ if ((cif->flags & FLAG_RETURNS_SMST) != 0)
++ ecif.rvalue = smst_buffer;
++ /* Ensure that we have a valid struct return value.
++ FIXME: Isn't this just papering over a user problem? */
++ else if (!rvalue && cif->rtype->type == FFI_TYPE_STRUCT)
++ ecif.rvalue = alloca (cif->rtype->size);
+
+ switch (cif->abi)
+ {
+ #ifndef POWERPC64
++# ifndef __NO_FPRS__
+ case FFI_SYSV:
+ case FFI_GCC_SYSV:
+ case FFI_LINUX:
++# endif
+ case FFI_LINUX_SOFT_FLOAT:
+ ffi_call_SYSV (&ecif, -cif->bytes, cif->flags, ecif.rvalue, fn);
+ break;
+ #else
+ case FFI_LINUX64:
+ ffi_call_LINUX64 (&ecif, -(long) cif->bytes, cif->flags, ecif.rvalue, fn);
+ break;
+ #endif
+ default:
+ FFI_ASSERT (0);
+ break;
+ }
++
++ /* Check for a bounce-buffered return value */
++ if (rvalue && ecif.rvalue == smst_buffer)
++ {
++ unsigned int rsize = cif->rtype->size;
++#ifndef __LITTLE_ENDIAN__
++ /* The SYSV ABI returns a structure of up to 4 bytes in size
++ left-padded in r3. */
++ if (cif->abi == FFI_SYSV && rsize <= 4)
++ memcpy (rvalue, (char *) smst_buffer + 4 - rsize, rsize);
++ /* The SYSV ABI returns a structure of up to 8 bytes in size
++ left-padded in r3/r4, and the ELFv2 ABI similarly returns a
++ structure of up to 8 bytes in size left-padded in r3. */
++ else if (rsize <= 8)
++ memcpy (rvalue, (char *) smst_buffer + 8 - rsize, rsize);
++ else
++#endif
++ memcpy (rvalue, smst_buffer, rsize);
++ }
+ }
+
+
+-#ifndef POWERPC64
++#if !defined POWERPC64 || _CALL_ELF == 2
+ #define MIN_CACHE_LINE_SIZE 8
+
+ static void
+ flush_icache (char *wraddr, char *xaddr, int size)
+ {
+ int i;
+ for (i = 0; i < size; i += MIN_CACHE_LINE_SIZE)
+ __asm__ volatile ("icbi 0,%0;" "dcbf 0,%1;"
+@@ -942,26 +1208,48 @@ flush_icache (char *wraddr, char *xaddr,
+ ffi_status
+ ffi_prep_closure_loc (ffi_closure *closure,
+ ffi_cif *cif,
+ void (*fun) (ffi_cif *, void *, void **, void *),
+ void *user_data,
+ void *codeloc)
+ {
+ #ifdef POWERPC64
++# if _CALL_ELF == 2
++ unsigned int *tramp = (unsigned int *) &closure->tramp[0];
++
++ if (cif->abi != FFI_LINUX64)
++ return FFI_BAD_ABI;
++
++ tramp[0] = 0xe96c0018; /* 0: ld 11,2f-0b(12) */
++ tramp[1] = 0xe98c0010; /* ld 12,1f-0b(12) */
++ tramp[2] = 0x7d8903a6; /* mtctr 12 */
++ tramp[3] = 0x4e800420; /* bctr */
++ /* 1: .quad function_addr */
++ /* 2: .quad context */
++ *(void **) &tramp[4] = (void *) ffi_closure_LINUX64;
++ *(void **) &tramp[6] = codeloc;
++ flush_icache ((char *)tramp, (char *)codeloc, FFI_TRAMPOLINE_SIZE);
++# else
+ void **tramp = (void **) &closure->tramp[0];
+
+- FFI_ASSERT (cif->abi == FFI_LINUX64);
++ if (cif->abi != FFI_LINUX64)
++ return FFI_BAD_ABI;
+ /* Copy function address and TOC from ffi_closure_LINUX64. */
+ memcpy (tramp, (char *) ffi_closure_LINUX64, 16);
+ tramp[2] = codeloc;
++# endif
+ #else
+ unsigned int *tramp;
+
+- FFI_ASSERT (cif->abi == FFI_GCC_SYSV || cif->abi == FFI_SYSV);
++ if (! (cif->abi == FFI_GCC_SYSV
++ || cif->abi == FFI_SYSV
++ || cif->abi == FFI_LINUX
++ || cif->abi == FFI_LINUX_SOFT_FLOAT))
++ return FFI_BAD_ABI;
+
+ tramp = (unsigned int *) &closure->tramp[0];
+ tramp[0] = 0x7c0802a6; /* mflr r0 */
+ tramp[1] = 0x4800000d; /* bl 10 <trampoline_initial+0x10> */
+ tramp[4] = 0x7d6802a6; /* mflr r11 */
+ tramp[5] = 0x7c0803a6; /* mtlr r0 */
+ tramp[6] = 0x800b0000; /* lwz r0,0(r11) */
+ tramp[7] = 0x816b0004; /* lwz r11,4(r11) */
+@@ -1006,110 +1294,215 @@ ffi_closure_helper_SYSV (ffi_closure *cl
+ /* rvalue is the pointer to space for return value in closure assembly */
+ /* pgr is the pointer to where r3-r10 are stored in ffi_closure_SYSV */
+ /* pfr is the pointer to where f1-f8 are stored in ffi_closure_SYSV */
+ /* pst is the pointer to outgoing parameter stack in original caller */
+
+ void ** avalue;
+ ffi_type ** arg_types;
+ long i, avn;
+- long nf; /* number of floating registers already used */
+- long ng; /* number of general registers already used */
+- ffi_cif * cif;
+- double temp;
+- unsigned size;
++#ifndef __NO_FPRS__
++ long nf = 0; /* number of floating registers already used */
++#endif
++ long ng = 0; /* number of general registers already used */
+
+- cif = closure->cif;
++ ffi_cif *cif = closure->cif;
++ unsigned size = cif->rtype->size;
++ unsigned short rtypenum = cif->rtype->type;
++
+ avalue = alloca (cif->nargs * sizeof (void *));
+- size = cif->rtype->size;
+
+- nf = 0;
+- ng = 0;
++ /* First translate for softfloat/nonlinux */
++ if (cif->abi == FFI_LINUX_SOFT_FLOAT) {
++ if (rtypenum == FFI_TYPE_FLOAT)
++ rtypenum = FFI_TYPE_UINT32;
++ if (rtypenum == FFI_TYPE_DOUBLE)
++ rtypenum = FFI_TYPE_UINT64;
++ if (rtypenum == FFI_TYPE_LONGDOUBLE)
++ rtypenum = FFI_TYPE_UINT128;
++ } else if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX64) {
++#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
++ if (rtypenum == FFI_TYPE_LONGDOUBLE)
++ rtypenum = FFI_TYPE_STRUCT;
++#endif
++ }
++
+
+ /* Copy the caller's structure return value address so that the closure
+ returns the data directly to the caller.
+ For FFI_SYSV the result is passed in r3/r4 if the struct size is less
+ or equal 8 bytes. */
+-
+- if ((cif->rtype->type == FFI_TYPE_STRUCT
+- && !((cif->abi == FFI_SYSV) && (size <= 8)))
+-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+- || (cif->rtype->type == FFI_TYPE_LONGDOUBLE
+- && cif->abi != FFI_LINUX && cif->abi != FFI_LINUX_SOFT_FLOAT)
+-#endif
+- )
+- {
++ if (rtypenum == FFI_TYPE_STRUCT && ((cif->abi != FFI_SYSV) || (size > 8))) {
+ rvalue = (void *) *pgr;
+ ng++;
+ pgr++;
+ }
+
+ i = 0;
+ avn = cif->nargs;
+ arg_types = cif->arg_types;
+
+ /* Grab the addresses of the arguments from the stack frame. */
+- while (i < avn)
+- {
+- switch (arg_types[i]->type)
+- {
++ while (i < avn) {
++ unsigned short typenum = arg_types[i]->type;
++
++ /* We may need to handle some values depending on ABI */
++ if (cif->abi == FFI_LINUX_SOFT_FLOAT) {
++ if (typenum == FFI_TYPE_FLOAT)
++ typenum = FFI_TYPE_UINT32;
++ if (typenum == FFI_TYPE_DOUBLE)
++ typenum = FFI_TYPE_UINT64;
++ if (typenum == FFI_TYPE_LONGDOUBLE)
++ typenum = FFI_TYPE_UINT128;
++ } else if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX64) {
++#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
++ if (typenum == FFI_TYPE_LONGDOUBLE)
++ typenum = FFI_TYPE_STRUCT;
++#endif
++ }
++
++ switch (typenum) {
++#ifndef __NO_FPRS__
++ case FFI_TYPE_FLOAT:
++ /* unfortunately float values are stored as doubles
++ * in the ffi_closure_SYSV code (since we don't check
++ * the type in that routine).
++ */
++
++ /* there are 8 64bit floating point registers */
++
++ if (nf < 8)
++ {
++ double temp = pfr->d;
++ pfr->f = (float) temp;
++ avalue[i] = pfr;
++ nf++;
++ pfr++;
++ }
++ else
++ {
++ /* FIXME? here we are really changing the values
++ * stored in the original calling routines outgoing
++ * parameter stack. This is probably a really
++ * naughty thing to do but...
++ */
++ avalue[i] = pst;
++ pst += 1;
++ }
++ break;
++
++ case FFI_TYPE_DOUBLE:
++ /* On the outgoing stack all values are aligned to 8 */
++ /* there are 8 64bit floating point registers */
++
++ if (nf < 8)
++ {
++ avalue[i] = pfr;
++ nf++;
++ pfr++;
++ }
++ else
++ {
++ if (((long) pst) & 4)
++ pst++;
++ avalue[i] = pst;
++ pst += 2;
++ }
++ break;
++
++#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
++ case FFI_TYPE_LONGDOUBLE:
++ if (nf < 7)
++ {
++ avalue[i] = pfr;
++ pfr += 2;
++ nf += 2;
++ }
++ else
++ {
++ if (((long) pst) & 4)
++ pst++;
++ avalue[i] = pst;
++ pst += 4;
++ nf = 8;
++ }
++ break;
++#endif
++#endif /* have FPRS */
++
++ case FFI_TYPE_UINT128:
++ /*
++ * Test if for the whole long double, 4 gprs are available.
++ * otherwise the stuff ends up on the stack.
++ */
++ if (ng < 5) {
++ avalue[i] = pgr;
++ pgr += 4;
++ ng += 4;
++ } else {
++ avalue[i] = pst;
++ pst += 4;
++ ng = 8+4;
++ }
++ break;
++
+ case FFI_TYPE_SINT8:
+ case FFI_TYPE_UINT8:
++#ifndef __LITTLE_ENDIAN__
+ /* there are 8 gpr registers used to pass values */
+ if (ng < 8)
+ {
+ avalue[i] = (char *) pgr + 3;
+ ng++;
+ pgr++;
+ }
+ else
+ {
+ avalue[i] = (char *) pst + 3;
+ 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)
+ {
+ avalue[i] = (char *) pgr + 2;
+ ng++;
+ pgr++;
+ }
+ else
+ {
+ avalue[i] = (char *) pst + 2;
+ pst++;
+ }
+ break;
++#endif
+
+ case FFI_TYPE_SINT32:
+ case FFI_TYPE_UINT32:
+ case FFI_TYPE_POINTER:
+- soft_float_closure:
+ /* there are 8 gpr registers used to pass values */
+ if (ng < 8)
+ {
+ avalue[i] = pgr;
+ ng++;
+ pgr++;
+ }
+ else
+ {
+ avalue[i] = pst;
+ pst++;
+ }
+ break;
+
+ case FFI_TYPE_STRUCT:
+-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+- do_struct:
+-#endif
+ /* Structs are passed by reference. The address will appear in a
+ gpr if it is one of the first 8 arguments. */
+ if (ng < 8)
+ {
+ avalue[i] = (void *) *pgr;
+ ng++;
+ pgr++;
+ }
+@@ -1117,17 +1510,16 @@ ffi_closure_helper_SYSV (ffi_closure *cl
+ {
+ avalue[i] = (void *) *pst;
+ pst++;
+ }
+ break;
+
+ case FFI_TYPE_SINT64:
+ case FFI_TYPE_UINT64:
+- soft_double_closure:
+ /* passing long long ints are complex, they must
+ * be passed in suitable register pairs such as
+ * (r3,r4) or (r5,r6) or (r6,r7), or (r7,r8) or (r9,r10)
+ * and if the entire pair aren't available then the outgoing
+ * parameter stack is used for both but an alignment of 8
+ * must will be kept. So we must either look in pgr
+ * or pst to find the correct address for this type
+ * of parameter.
+@@ -1149,277 +1541,239 @@ ffi_closure_helper_SYSV (ffi_closure *cl
+ if (((long) pst) & 4)
+ pst++;
+ avalue[i] = pst;
+ pst += 2;
+ ng = 8;
+ }
+ break;
+
+- case FFI_TYPE_FLOAT:
+- /* With FFI_LINUX_SOFT_FLOAT floats are handled like UINT32. */
+- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
+- goto soft_float_closure;
+- /* unfortunately float values are stored as doubles
+- * in the ffi_closure_SYSV code (since we don't check
+- * the type in that routine).
+- */
+-
+- /* there are 8 64bit floating point registers */
+-
+- if (nf < 8)
+- {
+- temp = pfr->d;
+- pfr->f = (float) temp;
+- avalue[i] = pfr;
+- nf++;
+- pfr++;
+- }
+- else
+- {
+- /* FIXME? here we are really changing the values
+- * stored in the original calling routines outgoing
+- * parameter stack. This is probably a really
+- * naughty thing to do but...
+- */
+- avalue[i] = pst;
+- pst += 1;
+- }
+- break;
+-
+- case FFI_TYPE_DOUBLE:
+- /* With FFI_LINUX_SOFT_FLOAT doubles are handled like UINT64. */
+- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
+- goto soft_double_closure;
+- /* On the outgoing stack all values are aligned to 8 */
+- /* there are 8 64bit floating point registers */
+-
+- if (nf < 8)
+- {
+- avalue[i] = pfr;
+- nf++;
+- pfr++;
+- }
+- else
+- {
+- if (((long) pst) & 4)
+- pst++;
+- avalue[i] = pst;
+- pst += 2;
+- }
+- break;
+-
+-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+- case FFI_TYPE_LONGDOUBLE:
+- if (cif->abi != FFI_LINUX && cif->abi != FFI_LINUX_SOFT_FLOAT)
+- goto do_struct;
+- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
+- { /* Test if for the whole long double, 4 gprs are available.
+- otherwise the stuff ends up on the stack. */
+- if (ng < 5)
+- {
+- avalue[i] = pgr;
+- pgr += 4;
+- ng += 4;
+- }
+- else
+- {
+- avalue[i] = pst;
+- pst += 4;
+- ng = 8;
+- }
+- break;
+- }
+- if (nf < 7)
+- {
+- avalue[i] = pfr;
+- pfr += 2;
+- nf += 2;
+- }
+- else
+- {
+- if (((long) pst) & 4)
+- pst++;
+- avalue[i] = pst;
+- pst += 4;
+- nf = 8;
+- }
+- break;
+-#endif
+-
+ default:
+- FFI_ASSERT (0);
++ FFI_ASSERT (0);
+ }
+
+ i++;
+ }
+
+
+ (closure->fun) (cif, rvalue, avalue, closure->user_data);
+
+ /* Tell ffi_closure_SYSV how to perform return type promotions.
+ Because the FFI_SYSV ABI returns the structures <= 8 bytes in r3/r4
+ we have to tell ffi_closure_SYSV how to treat them. We combine the base
+ type FFI_SYSV_TYPE_SMALL_STRUCT - 1 with the size of the struct.
+ So a one byte struct gets the return type 16. Return type 1 to 15 are
+ already used and we never have a struct with size zero. That is the reason
+ for the subtraction of 1. See the comment in ffitarget.h about ordering.
+ */
+- if (cif->abi == FFI_SYSV && cif->rtype->type == FFI_TYPE_STRUCT
+- && size <= 8)
++ if (cif->abi == FFI_SYSV && rtypenum == FFI_TYPE_STRUCT && size <= 8)
+ return (FFI_SYSV_TYPE_SMALL_STRUCT - 1) + size;
+-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+- else if (cif->rtype->type == FFI_TYPE_LONGDOUBLE
+- && cif->abi != FFI_LINUX && cif->abi != FFI_LINUX_SOFT_FLOAT)
+- return FFI_TYPE_STRUCT;
+-#endif
+- /* With FFI_LINUX_SOFT_FLOAT floats and doubles are handled like UINT32
+- respectivley UINT64. */
+- if (cif->abi == FFI_LINUX_SOFT_FLOAT)
+- {
+- switch (cif->rtype->type)
+- {
+- case FFI_TYPE_FLOAT:
+- return FFI_TYPE_UINT32;
+- break;
+- case FFI_TYPE_DOUBLE:
+- return FFI_TYPE_UINT64;
+- break;
+-#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+- case FFI_TYPE_LONGDOUBLE:
+- return FFI_TYPE_UINT128;
+- break;
+-#endif
+- default:
+- return cif->rtype->type;
+- }
+- }
+- else
+- {
+- return cif->rtype->type;
+- }
++ return rtypenum;
+ }
+
+ int FFI_HIDDEN ffi_closure_helper_LINUX64 (ffi_closure *, void *,
+ unsigned long *, ffi_dblfl *);
+
+ int FFI_HIDDEN
+ ffi_closure_helper_LINUX64 (ffi_closure *closure, void *rvalue,
+ unsigned long *pst, ffi_dblfl *pfr)
+ {
+ /* rvalue is the pointer to space for return value in closure assembly */
+ /* pst is the pointer to parameter save area
+ (r3-r10 are stored into its first 8 slots by ffi_closure_LINUX64) */
+ /* pfr is the pointer to where f1-f13 are stored in ffi_closure_LINUX64 */
+
+ void **avalue;
+ ffi_type **arg_types;
+- long i, avn;
++ unsigned long i, avn, nfixedargs;
+ ffi_cif *cif;
+ ffi_dblfl *end_pfr = pfr + NUM_FPR_ARG_REGISTERS64;
++#ifdef __STRUCT_PARM_ALIGN__
++ unsigned long align;
++#endif
+
+ cif = closure->cif;
+ avalue = alloca (cif->nargs * sizeof (void *));
+
+- /* Copy the caller's structure return value address so that the closure
+- returns the data directly to the caller. */
+- if (cif->rtype->type == FFI_TYPE_STRUCT)
++ /* Copy the caller's structure return value address so that the
++ closure returns the data directly to the caller. */
++ if (cif->rtype->type == FFI_TYPE_STRUCT
++ && (cif->flags & FLAG_RETURNS_SMST) == 0)
+ {
+ rvalue = (void *) *pst;
+ pst++;
+ }
+
+ i = 0;
+ avn = cif->nargs;
++ nfixedargs = cif->nfixedargs;
+ arg_types = cif->arg_types;
+
+ /* Grab the addresses of the arguments from the stack frame. */
+ while (i < avn)
+ {
++ unsigned int elt, elnum;
++
+ switch (arg_types[i]->type)
+ {
+ 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:
+ avalue[i] = pst;
+ pst++;
+ break;
+
+ case FFI_TYPE_STRUCT:
+- /* 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;
++#ifdef __STRUCT_PARM_ALIGN__
++ align = arg_types[i]->alignment;
++ if (align > __STRUCT_PARM_ALIGN__)
++ align = __STRUCT_PARM_ALIGN__;
++ if (align > 1)
++ pst = (unsigned long *) ALIGN ((size_t) pst, align);
++#endif
++ elt = 0;
++#if _CALL_ELF == 2
++ elt = discover_homogeneous_aggregate (arg_types[i], &elnum);
++#endif
++ if (elt)
++ {
++ union {
++ void *v;
++ unsigned long *ul;
++ float *f;
++ double *d;
++ size_t p;
++ } to, from;
++
++ /* Repackage the aggregate from its parts. The
++ aggregate size is not greater than the space taken by
++ the registers so store back to the register/parameter
++ save arrays. */
++ if (pfr + elnum <= end_pfr)
++ to.v = pfr;
++ else
++ to.v = pst;
++
++ avalue[i] = to.v;
++ from.ul = pst;
++ if (elt == FFI_TYPE_FLOAT)
++ {
++ do
++ {
++ if (pfr < end_pfr && i < nfixedargs)
++ {
++ *to.f = (float) pfr->d;
++ pfr++;
++ }
++ else
++ *to.f = *from.f;
++ to.f++;
++ from.f++;
++ }
++ while (--elnum != 0);
++ }
++ else
++ {
++ do
++ {
++ if (pfr < end_pfr && i < nfixedargs)
++ {
++ *to.d = pfr->d;
++ pfr++;
++ }
++ else
++ *to.d = *from.d;
++ to.d++;
++ from.d++;
++ }
++ while (--elnum != 0);
++ }
++ }
+ else
+- avalue[i] = pst;
++ {
++#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;
+
+ case FFI_TYPE_FLOAT:
+ /* unfortunately float values are stored as doubles
+ * in the ffi_closure_LINUX64 code (since we don't check
+ * the type in that routine).
+ */
+
+ /* there are 13 64bit floating point registers */
+
+- if (pfr < end_pfr)
++ if (pfr < end_pfr && i < nfixedargs)
+ {
+ double temp = pfr->d;
+ pfr->f = (float) temp;
+ avalue[i] = pfr;
+ pfr++;
+ }
+ else
+ avalue[i] = pst;
+ pst++;
+ break;
+
+ case FFI_TYPE_DOUBLE:
+ /* On the outgoing stack all values are aligned to 8 */
+ /* there are 13 64bit floating point registers */
+
+- if (pfr < end_pfr)
++ if (pfr < end_pfr && i < nfixedargs)
+ {
+ avalue[i] = pfr;
+ pfr++;
+ }
+ else
+ avalue[i] = pst;
+ pst++;
+ break;
+
+ #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+ case FFI_TYPE_LONGDOUBLE:
+- if (pfr + 1 < end_pfr)
++ if (pfr + 1 < end_pfr && i + 1 < nfixedargs)
+ {
+ avalue[i] = pfr;
+ pfr += 2;
+ }
+ else
+ {
+- if (pfr < end_pfr)
++ if (pfr < end_pfr && i < nfixedargs)
+ {
+ /* Passed partly in f13 and partly on the stack.
+ Move it all to the stack. */
+ *pst = *(unsigned long *) pfr;
+ pfr++;
+ }
+ avalue[i] = pst;
+ }
+@@ -1433,10 +1787,19 @@ ffi_closure_helper_LINUX64 (ffi_closure
+
+ i++;
+ }
+
+
+ (closure->fun) (cif, rvalue, avalue, closure->user_data);
+
+ /* Tell ffi_closure_LINUX64 how to perform return type promotions. */
++ if ((cif->flags & FLAG_RETURNS_SMST) != 0)
++ {
++ if ((cif->flags & FLAG_RETURNS_FP) == 0)
++ return FFI_V2_TYPE_SMALL_STRUCT + cif->rtype->size - 1;
++ else if ((cif->flags & FLAG_RETURNS_64BITS) != 0)
++ return FFI_V2_TYPE_DOUBLE_HOMOG;
++ else
++ return FFI_V2_TYPE_FLOAT_HOMOG;
++ }
+ return cif->rtype->type;
+ }
+diff --git a/js/src/ctypes/libffi/src/powerpc/ffitarget.h b/js/src/ctypes/libffi/src/powerpc/ffitarget.h
+--- a/js/src/ctypes/libffi/src/powerpc/ffitarget.h
++++ b/js/src/ctypes/libffi/src/powerpc/ffitarget.h
+@@ -1,11 +1,13 @@
+ /* -----------------------------------------------------------------*-C-*-
+- ffitarget.h - Copyright (c) 1996-2003 Red Hat, Inc.
+- Copyright (C) 2007, 2008 Free Software Foundation, Inc
++ ffitarget.h - Copyright (c) 2012 Anthony Green
++ Copyright (C) 2007, 2008, 2010 Free Software Foundation, Inc
++ Copyright (c) 1996-2003 Red Hat, Inc.
++
+ Target configuration macros for PowerPC.
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ ``Software''), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+@@ -23,16 +25,20 @@
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ DEALINGS IN THE SOFTWARE.
+
+ ----------------------------------------------------------------------- */
+
+ #ifndef LIBFFI_TARGET_H
+ #define LIBFFI_TARGET_H
+
++#ifndef LIBFFI_H
++#error "Please do not include ffitarget.h directly into your source. Use ffi.h instead."
++#endif
++
+ /* ---- System specific configurations ----------------------------------- */
+
+ #if defined (POWERPC) && defined (__powerpc64__) /* linux64 */
+ #ifndef POWERPC64
+ #define POWERPC64
+ #endif
+ #elif defined (POWERPC_DARWIN) && defined (__ppc64__) /* Darwin */
+ #ifndef POWERPC64
+@@ -52,28 +58,24 @@ typedef enum ffi_abi {
+ FFI_FIRST_ABI = 0,
+
+ #ifdef POWERPC
+ FFI_SYSV,
+ FFI_GCC_SYSV,
+ FFI_LINUX64,
+ FFI_LINUX,
+ FFI_LINUX_SOFT_FLOAT,
+-# ifdef POWERPC64
++# if defined(POWERPC64)
+ FFI_DEFAULT_ABI = FFI_LINUX64,
++# elif defined(__NO_FPRS__)
++ FFI_DEFAULT_ABI = FFI_LINUX_SOFT_FLOAT,
++# elif (__LDBL_MANT_DIG__ == 106)
++ FFI_DEFAULT_ABI = FFI_LINUX,
+ # else
+-# if (!defined(__NO_FPRS__) && (__LDBL_MANT_DIG__ == 106))
+- FFI_DEFAULT_ABI = FFI_LINUX,
+-# else
+-# ifdef __NO_FPRS__
+- FFI_DEFAULT_ABI = FFI_LINUX_SOFT_FLOAT,
+-# else
+ FFI_DEFAULT_ABI = FFI_GCC_SYSV,
+-# endif
+-# endif
+ # endif
+ #endif
+
+ #ifdef POWERPC_AIX
+ FFI_AIX,
+ FFI_DARWIN,
+ FFI_DEFAULT_ABI = FFI_AIX,
+ #endif
+@@ -96,32 +98,45 @@ typedef enum ffi_abi {
+ FFI_LAST_ABI
+ } ffi_abi;
+ #endif
+
+ /* ---- Definitions for closures ----------------------------------------- */
+
+ #define FFI_CLOSURES 1
+ #define FFI_NATIVE_RAW_API 0
++#if defined (POWERPC) || defined (POWERPC_FREEBSD)
++# define FFI_TARGET_SPECIFIC_VARIADIC 1
++# define FFI_EXTRA_CIF_FIELDS unsigned nfixedargs
++#endif
+
+ /* For additional types like the below, take care about the order in
+ ppc_closures.S. They must follow after the FFI_TYPE_LAST. */
+
+ /* Needed for soft-float long-double-128 support. */
+ #define FFI_TYPE_UINT128 (FFI_TYPE_LAST + 1)
+
+ /* Needed for FFI_SYSV small structure returns.
+ We use two flag bits, (FLAG_SYSV_SMST_R3, FLAG_SYSV_SMST_R4) which are
+ defined in ffi.c, to determine the exact return type and its size. */
+ #define FFI_SYSV_TYPE_SMALL_STRUCT (FFI_TYPE_LAST + 2)
+
+-#if defined(POWERPC64) || defined(POWERPC_AIX)
+-#define FFI_TRAMPOLINE_SIZE 24
+-#else /* POWERPC || POWERPC_AIX */
+-#define FFI_TRAMPOLINE_SIZE 40
++/* Used by ELFv2 for homogenous structure returns. */
++#define FFI_V2_TYPE_FLOAT_HOMOG (FFI_TYPE_LAST + 1)
++#define FFI_V2_TYPE_DOUBLE_HOMOG (FFI_TYPE_LAST + 2)
++#define FFI_V2_TYPE_SMALL_STRUCT (FFI_TYPE_LAST + 3)
++
++#if _CALL_ELF == 2
++# define FFI_TRAMPOLINE_SIZE 32
++#else
++# if defined(POWERPC64) || defined(POWERPC_AIX)
++# define FFI_TRAMPOLINE_SIZE 24
++# else /* POWERPC || POWERPC_AIX */
++# define FFI_TRAMPOLINE_SIZE 40
++# endif
+ #endif
+
+ #ifndef LIBFFI_ASM
+ #if defined(POWERPC_DARWIN) || defined(POWERPC_AIX)
+ struct ffi_aix_trampoline_struct {
+ void * code_pointer; /* Pointer to ffi_closure_ASM */
+ void * toc; /* TOC */
+ void * static_chain; /* Pointer to closure */
+diff --git a/js/src/ctypes/libffi/src/powerpc/linux64.S b/js/src/ctypes/libffi/src/powerpc/linux64.S
+--- a/js/src/ctypes/libffi/src/powerpc/linux64.S
++++ b/js/src/ctypes/libffi/src/powerpc/linux64.S
+@@ -25,56 +25,86 @@
+ DEALINGS IN THE SOFTWARE.
+ ----------------------------------------------------------------------- */
+
+ #define LIBFFI_ASM
+ #include <fficonfig.h>
+ #include <ffi.h>
+
+ #ifdef __powerpc64__
+- .hidden ffi_call_LINUX64, .ffi_call_LINUX64
+- .globl ffi_call_LINUX64, .ffi_call_LINUX64
++ .hidden ffi_call_LINUX64
++ .globl ffi_call_LINUX64
++# if _CALL_ELF == 2
++ .text
++ffi_call_LINUX64:
++ addis %r2, %r12, .TOC.-ffi_call_LINUX64@ha
++ addi %r2, %r2, .TOC.-ffi_call_LINUX64@l
++ .localentry ffi_call_LINUX64, . - ffi_call_LINUX64
++# else
+ .section ".opd","aw"
+ .align 3
+ ffi_call_LINUX64:
++# ifdef _CALL_LINUX
++ .quad .L.ffi_call_LINUX64,.TOC.@tocbase,0
++ .type ffi_call_LINUX64,@function
++ .text
++.L.ffi_call_LINUX64:
++# else
++ .hidden .ffi_call_LINUX64
++ .globl .ffi_call_LINUX64
+ .quad .ffi_call_LINUX64,.TOC.@tocbase,0
+ .size ffi_call_LINUX64,24
+ .type .ffi_call_LINUX64,@function
+ .text
+ .ffi_call_LINUX64:
++# endif
++# endif
+ .LFB1:
+ mflr %r0
+ std %r28, -32(%r1)
+ std %r29, -24(%r1)
+ std %r30, -16(%r1)
+ std %r31, -8(%r1)
+ std %r0, 16(%r1)
+
+ mr %r28, %r1 /* our AP. */
+ .LCFI0:
+ stdux %r1, %r1, %r4
+ mr %r31, %r5 /* flags, */
+ mr %r30, %r6 /* rvalue, */
+ mr %r29, %r7 /* function address. */
++/* Save toc pointer, not for the ffi_prep_args64 call, but for the later
++ bctrl function call. */
++# if _CALL_ELF == 2
++ std %r2, 24(%r1)
++# else
+ std %r2, 40(%r1)
++# endif
+
+ /* Call ffi_prep_args64. */
+ mr %r4, %r1
++# if defined _CALL_LINUX || _CALL_ELF == 2
++ bl ffi_prep_args64
++# else
+ bl .ffi_prep_args64
++# endif
+
+- ld %r0, 0(%r29)
++# if _CALL_ELF == 2
++ mr %r12, %r29
++# else
++ ld %r12, 0(%r29)
+ ld %r2, 8(%r29)
+ ld %r11, 16(%r29)
+-
++# endif
+ /* Now do the call. */
+ /* Set up cr1 with bits 4-7 of the flags. */
+ mtcrf 0x40, %r31
+
+ /* Get the address to call into CTR. */
+- mtctr %r0
++ mtctr %r12
+ /* Load all those argument registers. */
+ ld %r3, -32-(8*8)(%r28)
+ ld %r4, -32-(7*8)(%r28)
+ ld %r5, -32-(6*8)(%r28)
+ ld %r6, -32-(5*8)(%r28)
+ bf- 5, 1f
+ ld %r7, -32-(4*8)(%r28)
+ ld %r8, -32-(3*8)(%r28)
+@@ -99,50 +129,93 @@ 1:
+ lfd %f13, -32-(9*8)(%r28)
+ 2:
+
+ /* Make the call. */
+ bctrl
+
+ /* This must follow the call immediately, the unwinder
+ uses this to find out if r2 has been saved or not. */
++# if _CALL_ELF == 2
++ ld %r2, 24(%r1)
++# else
+ ld %r2, 40(%r1)
++# endif
+
+ /* Now, deal with the return value. */
+ mtcrf 0x01, %r31
+- bt- 30, .Ldone_return_value
+- bt- 29, .Lfp_return_value
++ bt 31, .Lstruct_return_value
++ bt 30, .Ldone_return_value
++ bt 29, .Lfp_return_value
+ std %r3, 0(%r30)
+ /* Fall through... */
+
+ .Ldone_return_value:
+ /* Restore the registers we used and return. */
+ mr %r1, %r28
+ ld %r0, 16(%r28)
+- ld %r28, -32(%r1)
++ ld %r28, -32(%r28)
+ mtlr %r0
+ ld %r29, -24(%r1)
+ ld %r30, -16(%r1)
+ ld %r31, -8(%r1)
+ blr
+
+ .Lfp_return_value:
+ bf 28, .Lfloat_return_value
+ stfd %f1, 0(%r30)
+ mtcrf 0x02, %r31 /* cr6 */
+ bf 27, .Ldone_return_value
+ stfd %f2, 8(%r30)
+ b .Ldone_return_value
+ .Lfloat_return_value:
+ stfs %f1, 0(%r30)
+ b .Ldone_return_value
++
++.Lstruct_return_value:
++ bf 29, .Lsmall_struct
++ bf 28, .Lfloat_homog_return_value
++ stfd %f1, 0(%r30)
++ stfd %f2, 8(%r30)
++ stfd %f3, 16(%r30)
++ stfd %f4, 24(%r30)
++ stfd %f5, 32(%r30)
++ stfd %f6, 40(%r30)
++ stfd %f7, 48(%r30)
++ stfd %f8, 56(%r30)
++ b .Ldone_return_value
++
++.Lfloat_homog_return_value:
++ stfs %f1, 0(%r30)
++ stfs %f2, 4(%r30)
++ stfs %f3, 8(%r30)
++ stfs %f4, 12(%r30)
++ stfs %f5, 16(%r30)
++ stfs %f6, 20(%r30)
++ stfs %f7, 24(%r30)
++ stfs %f8, 28(%r30)
++ b .Ldone_return_value
++
++.Lsmall_struct:
++ std %r3, 0(%r30)
++ std %r4, 8(%r30)
++ b .Ldone_return_value
++
+ .LFE1:
+ .long 0
+ .byte 0,12,0,1,128,4,0,0
++# if _CALL_ELF == 2
++ .size ffi_call_LINUX64,.-ffi_call_LINUX64
++# else
++# ifdef _CALL_LINUX
++ .size ffi_call_LINUX64,.-.L.ffi_call_LINUX64
++# else
+ .size .ffi_call_LINUX64,.-.ffi_call_LINUX64
++# endif
++# endif
+
+ .section .eh_frame,EH_FRAME_FLAGS,@progbits
+ .Lframe1:
+ .4byte .LECIE1-.LSCIE1 # Length of Common Information Entry
+ .LSCIE1:
+ .4byte 0x0 # CIE Identifier Tag
+ .byte 0x1 # CIE Version
+ .ascii "zR\0" # CIE Augmentation
+@@ -175,13 +248,13 @@ 2:
+ .byte 0x9e # DW_CFA_offset, column 0x1e
+ .uleb128 0x2
+ .byte 0x9d # DW_CFA_offset, column 0x1d
+ .uleb128 0x3
+ .byte 0x9c # DW_CFA_offset, column 0x1c
+ .uleb128 0x4
+ .align 3
+ .LEFDE1:
++
++# if (defined __ELF__ && defined __linux__) || _CALL_ELF == 2
++ .section .note.GNU-stack,"",@progbits
++# endif
+ #endif
+-
+-#if defined __ELF__ && defined __linux__
+- .section .note.GNU-stack,"",@progbits
+-#endif
+diff --git a/js/src/ctypes/libffi/src/powerpc/linux64_closure.S b/js/src/ctypes/libffi/src/powerpc/linux64_closure.S
+--- a/js/src/ctypes/libffi/src/powerpc/linux64_closure.S
++++ b/js/src/ctypes/libffi/src/powerpc/linux64_closure.S
+@@ -27,179 +27,330 @@
+ #define LIBFFI_ASM
+ #include <fficonfig.h>
+ #include <ffi.h>
+
+ .file "linux64_closure.S"
+
+ #ifdef __powerpc64__
+ FFI_HIDDEN (ffi_closure_LINUX64)
+- FFI_HIDDEN (.ffi_closure_LINUX64)
+- .globl ffi_closure_LINUX64, .ffi_closure_LINUX64
++ .globl ffi_closure_LINUX64
++# if _CALL_ELF == 2
++ .text
++ffi_closure_LINUX64:
++ addis %r2, %r12, .TOC.-ffi_closure_LINUX64@ha
++ addi %r2, %r2, .TOC.-ffi_closure_LINUX64@l
++ .localentry ffi_closure_LINUX64, . - ffi_closure_LINUX64
++# else
+ .section ".opd","aw"
+ .align 3
+ ffi_closure_LINUX64:
++# ifdef _CALL_LINUX
++ .quad .L.ffi_closure_LINUX64,.TOC.@tocbase,0
++ .type ffi_closure_LINUX64,@function
++ .text
++.L.ffi_closure_LINUX64:
++# else
++ FFI_HIDDEN (.ffi_closure_LINUX64)
++ .globl .ffi_closure_LINUX64
+ .quad .ffi_closure_LINUX64,.TOC.@tocbase,0
+ .size ffi_closure_LINUX64,24
+ .type .ffi_closure_LINUX64,@function
+ .text
+ .ffi_closure_LINUX64:
++# endif
++# endif
++
++# if _CALL_ELF == 2
++# 32 byte special reg save area + 64 byte parm save area
++# + 64 byte retval area + 13*8 fpr save area + round to 16
++# define STACKFRAME 272
++# define PARMSAVE 32
++# define RETVAL PARMSAVE+64
++# else
++# 48 bytes special reg save area + 64 bytes parm save area
++# + 16 bytes retval area + 13*8 bytes fpr save area + round to 16
++# define STACKFRAME 240
++# define PARMSAVE 48
++# define RETVAL PARMSAVE+64
++# endif
++
+ .LFB1:
+- # save general regs into parm save area
+- std %r3, 48(%r1)
+- std %r4, 56(%r1)
+- std %r5, 64(%r1)
+- std %r6, 72(%r1)
++# if _CALL_ELF == 2
++ ld %r12, FFI_TRAMPOLINE_SIZE(%r11) # closure->cif
+ mflr %r0
++ lwz %r12, 28(%r12) # cif->flags
++ mtcrf 0x40, %r12
++ addi %r12, %r1, PARMSAVE
++ bt 7, .Lparmsave
++ # Our caller has not allocated a parameter save area.
++ # We need to allocate one here and use it to pass gprs to
++ # ffi_closure_helper_LINUX64.
++ addi %r12, %r1, -STACKFRAME+PARMSAVE
++.Lparmsave:
++ std %r0, 16(%r1)
++ # Save general regs into parm save area
++ std %r3, 0(%r12)
++ std %r4, 8(%r12)
++ std %r5, 16(%r12)
++ std %r6, 24(%r12)
++ std %r7, 32(%r12)
++ std %r8, 40(%r12)
++ std %r9, 48(%r12)
++ std %r10, 56(%r12)
+
+- std %r7, 80(%r1)
+- std %r8, 88(%r1)
+- std %r9, 96(%r1)
+- std %r10, 104(%r1)
++ # load up the pointer to the parm save area
++ mr %r5, %r12
++# else
++ mflr %r0
++ # Save general regs into parm save area
++ # This is the parameter save area set up by our caller.
++ std %r3, PARMSAVE+0(%r1)
++ std %r4, PARMSAVE+8(%r1)
++ std %r5, PARMSAVE+16(%r1)
++ std %r6, PARMSAVE+24(%r1)
++ std %r7, PARMSAVE+32(%r1)
++ std %r8, PARMSAVE+40(%r1)
++ std %r9, PARMSAVE+48(%r1)
++ std %r10, PARMSAVE+56(%r1)
++
+ std %r0, 16(%r1)
+
+- # mandatory 48 bytes special reg save area + 64 bytes parm save area
+- # + 16 bytes retval area + 13*8 bytes fpr save area + round to 16
+- stdu %r1, -240(%r1)
++ # load up the pointer to the parm save area
++ addi %r5, %r1, PARMSAVE
++# endif
++
++ # next save fpr 1 to fpr 13
++ stfd %f1, -104+(0*8)(%r1)
++ stfd %f2, -104+(1*8)(%r1)
++ stfd %f3, -104+(2*8)(%r1)
++ stfd %f4, -104+(3*8)(%r1)
++ stfd %f5, -104+(4*8)(%r1)
++ stfd %f6, -104+(5*8)(%r1)
++ stfd %f7, -104+(6*8)(%r1)
++ stfd %f8, -104+(7*8)(%r1)
++ stfd %f9, -104+(8*8)(%r1)
++ stfd %f10, -104+(9*8)(%r1)
++ stfd %f11, -104+(10*8)(%r1)
++ stfd %f12, -104+(11*8)(%r1)
++ stfd %f13, -104+(12*8)(%r1)
++
++ # load up the pointer to the saved fpr registers */
++ addi %r6, %r1, -104
++
++ # load up the pointer to the result storage
++ addi %r4, %r1, -STACKFRAME+RETVAL
++
++ stdu %r1, -STACKFRAME(%r1)
+ .LCFI0:
+
+- # next save fpr 1 to fpr 13
+- stfd %f1, 128+(0*8)(%r1)
+- stfd %f2, 128+(1*8)(%r1)
+- stfd %f3, 128+(2*8)(%r1)
+- stfd %f4, 128+(3*8)(%r1)
+- stfd %f5, 128+(4*8)(%r1)
+- stfd %f6, 128+(5*8)(%r1)
+- stfd %f7, 128+(6*8)(%r1)
+- stfd %f8, 128+(7*8)(%r1)
+- stfd %f9, 128+(8*8)(%r1)
+- stfd %f10, 128+(9*8)(%r1)
+- stfd %f11, 128+(10*8)(%r1)
+- stfd %f12, 128+(11*8)(%r1)
+- stfd %f13, 128+(12*8)(%r1)
+-
+- # set up registers for the routine that actually does the work
+ # get the context pointer from the trampoline
+- mr %r3, %r11
+-
+- # now load up the pointer to the result storage
+- addi %r4, %r1, 112
+-
+- # now load up the pointer to the parameter save area
+- # in the previous frame
+- addi %r5, %r1, 240 + 48
+-
+- # now load up the pointer to the saved fpr registers */
+- addi %r6, %r1, 128
++ mr %r3, %r11
+
+ # make the call
++# if defined _CALL_LINUX || _CALL_ELF == 2
++ bl ffi_closure_helper_LINUX64
++# else
+ bl .ffi_closure_helper_LINUX64
++# endif
+ .Lret:
+
+ # now r3 contains the return type
+ # so use it to look up in a table
+ # so we know how to deal with each type
+
+ # look up the proper starting point in table
+ # by using return type as offset
++ ld %r0, STACKFRAME+16(%r1)
++ cmpldi %r3, FFI_V2_TYPE_SMALL_STRUCT
++ bge .Lsmall
+ mflr %r4 # move address of .Lret to r4
+ sldi %r3, %r3, 4 # now multiply return type by 16
+ addi %r4, %r4, .Lret_type0 - .Lret
+- ld %r0, 240+16(%r1)
+ add %r3, %r3, %r4 # add contents of table to table address
+ mtctr %r3
+ bctr # jump to it
+
+ # Each of the ret_typeX code fragments has to be exactly 16 bytes long
+ # (4 instructions). For cache effectiveness we align to a 16 byte boundary
+ # first.
+ .align 4
+
+ .Lret_type0:
+ # case FFI_TYPE_VOID
+ mtlr %r0
+- addi %r1, %r1, 240
++ addi %r1, %r1, STACKFRAME
+ blr
+ nop
+ # case FFI_TYPE_INT
+- lwa %r3, 112+4(%r1)
++# ifdef __LITTLE_ENDIAN__
++ lwa %r3, RETVAL+0(%r1)
++# else
++ lwa %r3, RETVAL+4(%r1)
++# endif
+ mtlr %r0
+- addi %r1, %r1, 240
++ addi %r1, %r1, STACKFRAME
+ blr
+ # case FFI_TYPE_FLOAT
+- lfs %f1, 112+0(%r1)
++ lfs %f1, RETVAL+0(%r1)
+ mtlr %r0
+- addi %r1, %r1, 240
++ addi %r1, %r1, STACKFRAME
+ blr
+ # case FFI_TYPE_DOUBLE
+- lfd %f1, 112+0(%r1)
++ lfd %f1, RETVAL+0(%r1)
+ mtlr %r0
+- addi %r1, %r1, 240
++ addi %r1, %r1, STACKFRAME
+ blr
+ # case FFI_TYPE_LONGDOUBLE
+- lfd %f1, 112+0(%r1)
++ lfd %f1, RETVAL+0(%r1)
+ mtlr %r0
+- lfd %f2, 112+8(%r1)
++ lfd %f2, RETVAL+8(%r1)
+ b .Lfinish
+ # case FFI_TYPE_UINT8
+- lbz %r3, 112+7(%r1)
++# ifdef __LITTLE_ENDIAN__
++ lbz %r3, RETVAL+0(%r1)
++# else
++ lbz %r3, RETVAL+7(%r1)
++# endif
+ mtlr %r0
+- addi %r1, %r1, 240
++ addi %r1, %r1, STACKFRAME
+ blr
+ # case FFI_TYPE_SINT8
+- lbz %r3, 112+7(%r1)
++# ifdef __LITTLE_ENDIAN__
++ lbz %r3, RETVAL+0(%r1)
++# else
++ lbz %r3, RETVAL+7(%r1)
++# endif
+ extsb %r3,%r3
+ mtlr %r0
+ b .Lfinish
+ # case FFI_TYPE_UINT16
+- lhz %r3, 112+6(%r1)
++# ifdef __LITTLE_ENDIAN__
++ lhz %r3, RETVAL+0(%r1)
++# else
++ lhz %r3, RETVAL+6(%r1)
++# endif
+ mtlr %r0
+ .Lfinish:
+- addi %r1, %r1, 240
++ addi %r1, %r1, STACKFRAME
+ blr
+ # case FFI_TYPE_SINT16
+- lha %r3, 112+6(%r1)
++# ifdef __LITTLE_ENDIAN__
++ lha %r3, RETVAL+0(%r1)
++# else
++ lha %r3, RETVAL+6(%r1)
++# endif
+ mtlr %r0
+- addi %r1, %r1, 240
++ addi %r1, %r1, STACKFRAME
+ blr
+ # case FFI_TYPE_UINT32
+- lwz %r3, 112+4(%r1)
++# ifdef __LITTLE_ENDIAN__
++ lwz %r3, RETVAL+0(%r1)
++# else
++ lwz %r3, RETVAL+4(%r1)
++# endif
+ mtlr %r0
+- addi %r1, %r1, 240
++ addi %r1, %r1, STACKFRAME
+ blr
+ # case FFI_TYPE_SINT32
+- lwa %r3, 112+4(%r1)
++# ifdef __LITTLE_ENDIAN__
++ lwa %r3, RETVAL+0(%r1)
++# else
++ lwa %r3, RETVAL+4(%r1)
++# endif
+ mtlr %r0
+- addi %r1, %r1, 240
++ addi %r1, %r1, STACKFRAME
+ blr
+ # case FFI_TYPE_UINT64
+- ld %r3, 112+0(%r1)
++ ld %r3, RETVAL+0(%r1)
+ mtlr %r0
+- addi %r1, %r1, 240
++ addi %r1, %r1, STACKFRAME
+ blr
+ # case FFI_TYPE_SINT64
+- ld %r3, 112+0(%r1)
++ ld %r3, RETVAL+0(%r1)
+ mtlr %r0
+- addi %r1, %r1, 240
++ addi %r1, %r1, STACKFRAME
+ blr
+ # case FFI_TYPE_STRUCT
+ mtlr %r0
+- addi %r1, %r1, 240
++ addi %r1, %r1, STACKFRAME
+ blr
+ nop
+ # case FFI_TYPE_POINTER
+- ld %r3, 112+0(%r1)
++ ld %r3, RETVAL+0(%r1)
+ mtlr %r0
+- addi %r1, %r1, 240
++ addi %r1, %r1, STACKFRAME
+ blr
+-# esac
++# case FFI_V2_TYPE_FLOAT_HOMOG
++ lfs %f1, RETVAL+0(%r1)
++ lfs %f2, RETVAL+4(%r1)
++ lfs %f3, RETVAL+8(%r1)
++ b .Lmorefloat
++# case FFI_V2_TYPE_DOUBLE_HOMOG
++ lfd %f1, RETVAL+0(%r1)
++ lfd %f2, RETVAL+8(%r1)
++ lfd %f3, RETVAL+16(%r1)
++ lfd %f4, RETVAL+24(%r1)
++ mtlr %r0
++ lfd %f5, RETVAL+32(%r1)
++ lfd %f6, RETVAL+40(%r1)
++ lfd %f7, RETVAL+48(%r1)
++ lfd %f8, RETVAL+56(%r1)
++ addi %r1, %r1, STACKFRAME
++ blr
++.Lmorefloat:
++ lfs %f4, RETVAL+12(%r1)
++ mtlr %r0
++ lfs %f5, RETVAL+16(%r1)
++ lfs %f6, RETVAL+20(%r1)
++ lfs %f7, RETVAL+24(%r1)
++ lfs %f8, RETVAL+28(%r1)
++ addi %r1, %r1, STACKFRAME
++ blr
++.Lsmall:
++# ifdef __LITTLE_ENDIAN__
++ ld %r3,RETVAL+0(%r1)
++ mtlr %r0
++ ld %r4,RETVAL+8(%r1)
++ addi %r1, %r1, STACKFRAME
++ blr
++# else
++ # A struct smaller than a dword is returned in the low bits of r3
++ # ie. right justified. Larger structs are passed left justified
++ # in r3 and r4. The return value area on the stack will have
++ # the structs as they are usually stored in memory.
++ cmpldi %r3, FFI_V2_TYPE_SMALL_STRUCT + 7 # size 8 bytes?
++ neg %r5, %r3
++ ld %r3,RETVAL+0(%r1)
++ blt .Lsmalldown
++ mtlr %r0
++ ld %r4,RETVAL+8(%r1)
++ addi %r1, %r1, STACKFRAME
++ blr
++.Lsmalldown:
++ addi %r5, %r5, FFI_V2_TYPE_SMALL_STRUCT + 7
++ mtlr %r0
++ sldi %r5, %r5, 3
++ addi %r1, %r1, STACKFRAME
++ srd %r3, %r3, %r5
++ blr
++# endif
++
+ .LFE1:
+ .long 0
+ .byte 0,12,0,1,128,0,0,0
++# if _CALL_ELF == 2
++ .size ffi_closure_LINUX64,.-ffi_closure_LINUX64
++# else
++# ifdef _CALL_LINUX
++ .size ffi_closure_LINUX64,.-.L.ffi_closure_LINUX64
++# else
+ .size .ffi_closure_LINUX64,.-.ffi_closure_LINUX64
++# endif
++# endif
+
+ .section .eh_frame,EH_FRAME_FLAGS,@progbits
+ .Lframe1:
+ .4byte .LECIE1-.LSCIE1 # Length of Common Information Entry
+ .LSCIE1:
+ .4byte 0x0 # CIE Identifier Tag
+ .byte 0x1 # CIE Version
+ .ascii "zR\0" # CIE Augmentation
+@@ -218,19 +369,19 @@ ffi_closure_LINUX64:
+ .LASFDE1:
+ .4byte .LASFDE1-.Lframe1 # FDE CIE offset
+ .8byte .LFB1-. # FDE initial location
+ .8byte .LFE1-.LFB1 # FDE address range
+ .uleb128 0x0 # Augmentation size
+ .byte 0x2 # DW_CFA_advance_loc1
+ .byte .LCFI0-.LFB1
+ .byte 0xe # DW_CFA_def_cfa_offset
+- .uleb128 240
++ .uleb128 STACKFRAME
+ .byte 0x11 # DW_CFA_offset_extended_sf
+ .uleb128 0x41
+ .sleb128 -2
+ .align 3
+ .LEFDE1:
++
++# if defined __ELF__ && defined __linux__
++ .section .note.GNU-stack,"",@progbits
++# endif
+ #endif
+-
+-#if defined __ELF__ && defined __linux__
+- .section .note.GNU-stack,"",@progbits
+-#endif
+diff --git a/js/src/ctypes/libffi/src/powerpc/ppc_closure.S b/js/src/ctypes/libffi/src/powerpc/ppc_closure.S
+--- a/js/src/ctypes/libffi/src/powerpc/ppc_closure.S
++++ b/js/src/ctypes/libffi/src/powerpc/ppc_closure.S
+@@ -117,53 +117,88 @@ ENTRY(ffi_closure_SYSV)
+ # case FFI_TYPE_INT
+ lwz %r3,112+0(%r1)
+ mtlr %r0
+ .Lfinish:
+ addi %r1,%r1,144
+ blr
+
+ # case FFI_TYPE_FLOAT
++#ifndef __NO_FPRS__
+ lfs %f1,112+0(%r1)
+ mtlr %r0
+ addi %r1,%r1,144
++#else
++ nop
++ nop
++ nop
++#endif
+ blr
+
+ # case FFI_TYPE_DOUBLE
++#ifndef __NO_FPRS__
+ lfd %f1,112+0(%r1)
+ mtlr %r0
+ addi %r1,%r1,144
++#else
++ nop
++ nop
++ nop
++#endif
+ blr
+
+ # case FFI_TYPE_LONGDOUBLE
++#ifndef __NO_FPRS__
+ lfd %f1,112+0(%r1)
+ lfd %f2,112+8(%r1)
+ mtlr %r0
+ b .Lfinish
++#else
++ nop
++ nop
++ nop
++ blr
++#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
+
+ # case FFI_TYPE_UINT32
+ lwz %r3,112+0(%r1)
+ mtlr %r0
+ addi %r1,%r1,144
+@@ -198,76 +233,99 @@ ENTRY(ffi_closure_SYSV)
+ mtlr %r0
+ addi %r1,%r1,144
+ blr
+
+ # case FFI_TYPE_UINT128
+ lwz %r3,112+0(%r1)
+ lwz %r4,112+4(%r1)
+ lwz %r5,112+8(%r1)
+- bl .Luint128
++ b .Luint128
+
+ # The return types below are only used when the ABI type is FFI_SYSV.
+ # case FFI_SYSV_TYPE_SMALL_STRUCT + 1. One byte struct.
+ lbz %r3,112+0(%r1)
+ mtlr %r0
+ addi %r1,%r1,144
+ blr
+
+ # case FFI_SYSV_TYPE_SMALL_STRUCT + 2. Two byte struct.
+ lhz %r3,112+0(%r1)
+ mtlr %r0
+ addi %r1,%r1,144
+ blr
+
+ # 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)
+ mtlr %r0
+ addi %r1,%r1,144
+ blr
+
+ # 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)
+ lwz %r4,112+4(%r1)
+ mtlr %r0
+ b .Lfinish
+
++#ifndef __LITTLE_ENDIAN__
+ .Lstruct567:
+ subfic %r6,%r5,32
+ srw %r4,%r4,%r5
+ slw %r6,%r3,%r6
+ srw %r3,%r3,%r5
+ or %r4,%r6,%r4
+ mtlr %r0
+ addi %r1,%r1,144
+ blr
++#endif
+
+ .Luint128:
+ lwz %r6,112+12(%r1)
+ mtlr %r0
+ addi %r1,%r1,144
+ blr
+
+ END(ffi_closure_SYSV)
+diff --git a/js/src/ctypes/libffi/src/powerpc/sysv.S b/js/src/ctypes/libffi/src/powerpc/sysv.S
+--- a/js/src/ctypes/libffi/src/powerpc/sysv.S
++++ b/js/src/ctypes/libffi/src/powerpc/sysv.S
+@@ -78,37 +78,41 @@ ENTRY(ffi_call_SYSV)
+ nop
+ lwz %r7,-16-(4*4)(%r28)
+ lwz %r8,-16-(3*4)(%r28)
+ lwz %r9,-16-(2*4)(%r28)
+ lwz %r10,-16-(1*4)(%r28)
+ nop
+ 1:
+
++#ifndef __NO_FPRS__
+ /* Load all the FP registers. */
+ bf- 6,2f
+ lfd %f1,-16-(8*4)-(8*8)(%r28)
+ lfd %f2,-16-(8*4)-(7*8)(%r28)
+ lfd %f3,-16-(8*4)-(6*8)(%r28)
+ lfd %f4,-16-(8*4)-(5*8)(%r28)
+ nop
+ lfd %f5,-16-(8*4)-(4*8)(%r28)
+ lfd %f6,-16-(8*4)-(3*8)(%r28)
+ lfd %f7,-16-(8*4)-(2*8)(%r28)
+ lfd %f8,-16-(8*4)-(1*8)(%r28)
++#endif
+ 2:
+
+ /* Make the call. */
+ bctrl
+
+ /* Now, deal with the return value. */
+ mtcrf 0x01,%r31 /* cr7 */
+ bt- 31,L(small_struct_return_value)
+ bt- 30,L(done_return_value)
++#ifndef __NO_FPRS__
+ bt- 29,L(fp_return_value)
++#endif
+ stw %r3,0(%r30)
+ bf+ 28,L(done_return_value)
+ stw %r4,4(%r30)
+ mtcrf 0x02,%r31 /* cr6 */
+ bf 27,L(done_return_value)
+ stw %r5,8(%r30)
+ stw %r6,12(%r30)
+ /* Fall through... */
+@@ -119,41 +123,38 @@ L(done_return_value):
+ lwz %r31, -4(%r28)
+ mtlr %r9
+ lwz %r30, -8(%r28)
+ lwz %r29,-12(%r28)
+ lwz %r28,-16(%r28)
+ lwz %r1,0(%r1)
+ blr
+
++#ifndef __NO_FPRS__
+ L(fp_return_value):
+ bf 28,L(float_return_value)
+ stfd %f1,0(%r30)
+ mtcrf 0x02,%r31 /* cr6 */
+ bf 27,L(done_return_value)
+ stfd %f2,8(%r30)
+ b L(done_return_value)
+ L(float_return_value):
+ stfs %f1,0(%r30)
+ b L(done_return_value)
++#endif
+
+ L(small_struct_return_value):
+- extrwi %r6,%r31,2,19 /* number of bytes padding = shift/8 */
+- mtcrf 0x02,%r31 /* copy flags to cr[24:27] (cr6) */
+- extrwi %r5,%r31,5,19 /* r5 <- number of bits of padding */
+- subfic %r6,%r6,4 /* r6 <- number of useful bytes in r3 */
+- bf- 25,L(done_return_value) /* struct in r3 ? if not, done. */
+-/* smst_one_register: */
+- slw %r3,%r3,%r5 /* Left-justify value in r3 */
+- mtxer %r6 /* move byte count to XER ... */
+- stswx %r3,0,%r30 /* ... and store that many bytes */
+- bf+ 26,L(done_return_value) /* struct in r3:r4 ? */
+- add %r6,%r6,%r30 /* adjust pointer */
+- stswi %r4,%r6,4 /* store last four bytes */
+- b L(done_return_value)
++ /*
++ * The C code always allocates a properly-aligned 8-byte bounce
++ * buffer to make this assembly code very simple. Just write out
++ * r3 and r4 to the buffer to allow the C code to handle the rest.
++ */
++ stw %r3, 0(%r30)
++ stw %r4, 4(%r30)
++ b L(done_return_value)
+
+ .LFE1:
+ END(ffi_call_SYSV)
+
+ .section ".eh_frame",EH_FRAME_FLAGS,@progbits
+ .Lframe1:
+ .4byte .LECIE1-.LSCIE1 /* Length of Common Information Entry */
+ .LSCIE1: