diff options
Diffstat (limited to 'libffi/src/m68k/ffi.c')
| -rw-r--r-- | libffi/src/m68k/ffi.c | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/libffi/src/m68k/ffi.c b/libffi/src/m68k/ffi.c deleted file mode 100644 index c5d950786f7..00000000000 --- a/libffi/src/m68k/ffi.c +++ /dev/null @@ -1,184 +0,0 @@ -/* ----------------------------------------------------------------------- - ffi.c - - m68k Foreign Function Interface - ----------------------------------------------------------------------- */ - -#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. */ - -static void * -ffi_prep_args (void *stack, extended_cif *ecif) -{ - unsigned int i; - int tmp; - unsigned int avn; - void **p_argv; - char *argp; - ffi_type **p_arg; - void *struct_value_ptr; - - tmp = 0; - argp = stack; - - if (ecif->cif->rtype->type == FFI_TYPE_STRUCT - && ecif->cif->rtype->size > 8) - struct_value_ptr = ecif->rvalue; - else - struct_value_ptr = NULL; - - avn = ecif->cif->nargs; - p_argv = ecif->avalue; - - for (i = ecif->cif->nargs, p_arg = ecif->cif->arg_types; - i != 0 && avn != 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 (avn != 0) - { - avn--; - z = (*p_arg)->size; - if (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 + sizeof (int) - z, *p_argv, z); - break; - - default: - FFI_ASSERT (0); - } - z = sizeof (int); - } - else - memcpy (argp, *p_argv, z); - p_argv++; - argp += z; - } - } - - return struct_value_ptr; -} - -#define CIF_FLAGS_INT 1 -#define CIF_FLAGS_DINT 2 -#define CIF_FLAGS_FLOAT 4 -#define CIF_FLAGS_DOUBLE 8 -#define CIF_FLAGS_LDOUBLE 16 -#define CIF_FLAGS_POINTER 32 -#define CIF_FLAGS_STRUCT 64 - -/* Perform machine dependent cif processing */ -ffi_status -ffi_prep_cif_machdep (ffi_cif *cif) -{ - /* Set the return type flag */ - switch (cif->rtype->type) - { - case FFI_TYPE_VOID: - cif->flags = 0; - break; - - case FFI_TYPE_STRUCT: - if (cif->rtype->size > 4 && cif->rtype->size <= 8) - cif->flags = CIF_FLAGS_DINT; - else if (cif->rtype->size <= 4) - cif->flags = CIF_FLAGS_STRUCT; - else - cif->flags = 0; - break; - - case FFI_TYPE_FLOAT: - cif->flags = CIF_FLAGS_FLOAT; - break; - - case FFI_TYPE_DOUBLE: - cif->flags = CIF_FLAGS_DOUBLE; - break; - - case FFI_TYPE_LONGDOUBLE: - cif->flags = CIF_FLAGS_LDOUBLE; - break; - - case FFI_TYPE_POINTER: - cif->flags = CIF_FLAGS_POINTER; - break; - - case FFI_TYPE_SINT64: - case FFI_TYPE_UINT64: - cif->flags = CIF_FLAGS_DINT; - break; - - default: - cif->flags = CIF_FLAGS_INT; - break; - } - - return FFI_OK; -} - -extern void ffi_call_SYSV (void *(*) (void *, extended_cif *), - extended_cif *, - unsigned, unsigned, unsigned, - void *, void (*fn) ()); - -void -ffi_call (ffi_cif *cif, void (*fn) (), void *rvalue, void **avalue) -{ - 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 - && cif->rtype->size > 8) - ecif.rvalue = alloca (cif->rtype->size); - else - ecif.rvalue = rvalue; - - - switch (cif->abi) - { - case FFI_SYSV: - ffi_call_SYSV (ffi_prep_args, &ecif, cif->bytes, - cif->flags, cif->rtype->size * 8, - ecif.rvalue, fn); - break; - - default: - FFI_ASSERT (0); - break; - } -} |