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-rw-r--r--gcc-4.4.3/libffi/src/arm/ffi.c308
1 files changed, 0 insertions, 308 deletions
diff --git a/gcc-4.4.3/libffi/src/arm/ffi.c b/gcc-4.4.3/libffi/src/arm/ffi.c
deleted file mode 100644
index 35b2c3477..000000000
--- a/gcc-4.4.3/libffi/src/arm/ffi.c
+++ /dev/null
@@ -1,308 +0,0 @@
-/* -----------------------------------------------------------------------
- ffi.c - Copyright (c) 1998 Red Hat, Inc.
-
- ARM 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
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be included
- in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- OTHER DEALINGS IN THE SOFTWARE.
- ----------------------------------------------------------------------- */
-
-#include <ffi.h>
-#include <ffi_common.h>
-
-#include <stdlib.h>
-
-/* ffi_prep_args is called by the assembly routine once stack space
- has been allocated for the function's arguments */
-
-void ffi_prep_args(char *stack, extended_cif *ecif)
-{
- register unsigned int i;
- register void **p_argv;
- register char *argp;
- register ffi_type **p_arg;
-
- argp = stack;
-
- if ( ecif->cif->flags == FFI_TYPE_STRUCT ) {
- *(void **) argp = ecif->rvalue;
- argp += 4;
- }
-
- p_argv = ecif->avalue;
-
- for (i = ecif->cif->nargs, p_arg = ecif->cif->arg_types;
- (i != 0);
- i--, p_arg++)
- {
- size_t z;
-
- /* Align if necessary */
- if (((*p_arg)->alignment - 1) & (unsigned) argp) {
- argp = (char *) ALIGN(argp, (*p_arg)->alignment);
- }
-
- if ((*p_arg)->type == FFI_TYPE_STRUCT)
- argp = (char *) ALIGN(argp, 4);
-
- z = (*p_arg)->size;
- if (z < sizeof(int))
- {
- z = sizeof(int);
- switch ((*p_arg)->type)
- {
- case FFI_TYPE_SINT8:
- *(signed int *) argp = (signed int)*(SINT8 *)(* p_argv);
- break;
-
- case FFI_TYPE_UINT8:
- *(unsigned int *) argp = (unsigned int)*(UINT8 *)(* p_argv);
- break;
-
- case FFI_TYPE_SINT16:
- *(signed int *) argp = (signed int)*(SINT16 *)(* p_argv);
- break;
-
- case FFI_TYPE_UINT16:
- *(unsigned int *) argp = (unsigned int)*(UINT16 *)(* p_argv);
- break;
-
- case FFI_TYPE_STRUCT:
- memcpy(argp, *p_argv, (*p_arg)->size);
- break;
-
- default:
- FFI_ASSERT(0);
- }
- }
- else if (z == sizeof(int))
- {
- *(unsigned int *) argp = (unsigned int)*(UINT32 *)(* p_argv);
- }
- else
- {
- memcpy(argp, *p_argv, z);
- }
- p_argv++;
- argp += z;
- }
-
- return;
-}
-
-/* Perform machine dependent cif processing */
-ffi_status ffi_prep_cif_machdep(ffi_cif *cif)
-{
- /* Round the stack up to a multiple of 8 bytes. This isn't needed
- everywhere, but it is on some platforms, and it doesn't harm anything
- when it isn't needed. */
- cif->bytes = (cif->bytes + 7) & ~7;
-
- /* Set the return type flag */
- switch (cif->rtype->type)
- {
- case FFI_TYPE_VOID:
- case FFI_TYPE_FLOAT:
- case FFI_TYPE_DOUBLE:
- cif->flags = (unsigned) cif->rtype->type;
- break;
-
- case FFI_TYPE_SINT64:
- case FFI_TYPE_UINT64:
- cif->flags = (unsigned) FFI_TYPE_SINT64;
- break;
-
- case FFI_TYPE_STRUCT:
- if (cif->rtype->size <= 4)
- /* A Composite Type not larger than 4 bytes is returned in r0. */
- cif->flags = (unsigned)FFI_TYPE_INT;
- else
- /* A Composite Type larger than 4 bytes, or whose size cannot
- be determined statically ... is stored in memory at an
- address passed [in r0]. */
- cif->flags = (unsigned)FFI_TYPE_STRUCT;
- break;
-
- default:
- cif->flags = FFI_TYPE_INT;
- break;
- }
-
- return FFI_OK;
-}
-
-extern void ffi_call_SYSV(void (*)(char *, extended_cif *), extended_cif *,
- unsigned, unsigned, unsigned *, void (*fn)());
-
-void ffi_call(ffi_cif *cif, void (*fn)(), void *rvalue, void **avalue)
-{
- extended_cif ecif;
-
- int small_struct = (cif->flags == FFI_TYPE_INT
- && cif->rtype->type == FFI_TYPE_STRUCT);
-
- ecif.cif = cif;
- ecif.avalue = avalue;
-
- unsigned int temp;
-
- /* 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->flags == FFI_TYPE_STRUCT))
- {
- ecif.rvalue = alloca(cif->rtype->size);
- }
- else if (small_struct)
- ecif.rvalue = &temp;
- else
- ecif.rvalue = rvalue;
-
- switch (cif->abi)
- {
- case FFI_SYSV:
- ffi_call_SYSV(ffi_prep_args, &ecif, cif->bytes, cif->flags, ecif.rvalue,
- fn);
-
- break;
- default:
- FFI_ASSERT(0);
- break;
- }
- if (small_struct)
- memcpy (rvalue, &temp, cif->rtype->size);
-}
-
-/** private members **/
-
-static void ffi_prep_incoming_args_SYSV (char *stack, void **ret,
- void** args, ffi_cif* cif);
-
-void ffi_closure_SYSV (ffi_closure *);
-
-/* This function is jumped to by the trampoline */
-
-unsigned int
-ffi_closure_SYSV_inner (closure, respp, args)
- ffi_closure *closure;
- void **respp;
- void *args;
-{
- // our various things...
- ffi_cif *cif;
- void **arg_area;
-
- cif = closure->cif;
- arg_area = (void**) alloca (cif->nargs * sizeof (void*));
-
- /* this call will initialize ARG_AREA, such that each
- * element in that array points to the corresponding
- * value on the stack; and if the function returns
- * a structure, it will re-set RESP to point to the
- * structure return address. */
-
- ffi_prep_incoming_args_SYSV(args, respp, arg_area, cif);
-
- (closure->fun) (cif, *respp, arg_area, closure->user_data);
-
- return cif->flags;
-}
-
-/*@-exportheader@*/
-static void
-ffi_prep_incoming_args_SYSV(char *stack, void **rvalue,
- void **avalue, ffi_cif *cif)
-/*@=exportheader@*/
-{
- register unsigned int i;
- register void **p_argv;
- register char *argp;
- register ffi_type **p_arg;
-
- argp = stack;
-
- if ( cif->flags == FFI_TYPE_STRUCT ) {
- *rvalue = *(void **) argp;
- argp += 4;
- }
-
- p_argv = avalue;
-
- for (i = cif->nargs, p_arg = cif->arg_types; (i != 0); i--, p_arg++)
- {
- size_t z;
-
- size_t alignment = (*p_arg)->alignment;
- if (alignment < 4)
- alignment = 4;
- /* Align if necessary */
- if ((alignment - 1) & (unsigned) argp) {
- argp = (char *) ALIGN(argp, alignment);
- }
-
- z = (*p_arg)->size;
-
- /* because we're little endian, this is what it turns into. */
-
- *p_argv = (void*) argp;
-
- p_argv++;
- argp += z;
- }
-
- return;
-}
-
-/* How to make a trampoline. */
-
-#define FFI_INIT_TRAMPOLINE(TRAMP,FUN,CTX) \
-({ unsigned char *__tramp = (unsigned char*)(TRAMP); \
- unsigned int __fun = (unsigned int)(FUN); \
- unsigned int __ctx = (unsigned int)(CTX); \
- *(unsigned int*) &__tramp[0] = 0xe92d000f; /* stmfd sp!, {r0-r3} */ \
- *(unsigned int*) &__tramp[4] = 0xe59f0000; /* ldr r0, [pc] */ \
- *(unsigned int*) &__tramp[8] = 0xe59ff000; /* ldr pc, [pc] */ \
- *(unsigned int*) &__tramp[12] = __ctx; \
- *(unsigned int*) &__tramp[16] = __fun; \
- __clear_cache((&__tramp[0]), (&__tramp[19])); \
- })
-
-
-/* the cif must already be prep'ed */
-
-ffi_status
-ffi_prep_closure_loc (ffi_closure* closure,
- ffi_cif* cif,
- void (*fun)(ffi_cif*,void*,void**,void*),
- void *user_data,
- void *codeloc)
-{
- FFI_ASSERT (cif->abi == FFI_SYSV);
-
- FFI_INIT_TRAMPOLINE (&closure->tramp[0], \
- &ffi_closure_SYSV, \
- codeloc);
-
- closure->cif = cif;
- closure->user_data = user_data;
- closure->fun = fun;
-
- return FFI_OK;
-}
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