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Brian Fiete 2019-08-23 11:56:54 -07:00
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232
BeefySysLib/third_party/libffi/src/m32r/ffi.c vendored Normal file
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/* -----------------------------------------------------------------------
ffi.c - Copyright (c) 2004 Renesas Technology
Copyright (c) 2008 Red Hat, Inc.
M32R 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 RENESAS TECHNOLOGY 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)
{
unsigned int i;
int tmp;
unsigned int avn;
void **p_argv;
char *argp;
ffi_type **p_arg;
tmp = 0;
argp = stack;
if (ecif->cif->rtype->type == FFI_TYPE_STRUCT && ecif->cif->rtype->size > 8)
{
*(void **) argp = ecif->rvalue;
argp += 4;
}
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))
{
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:
z = (*p_arg)->size;
if ((*p_arg)->alignment != 1)
memcpy (argp, *p_argv, z);
else
memcpy (argp + 4 - z, *p_argv, z);
z = sizeof (int);
break;
default:
FFI_ASSERT(0);
}
}
else if (z == sizeof (int))
{
*(unsigned int *) argp = (unsigned int)*(UINT32 *)(* p_argv);
}
else
{
if ((*p_arg)->type == FFI_TYPE_STRUCT)
{
if (z > 8)
{
*(unsigned int *) argp = (unsigned int)(void *)(* p_argv);
z = sizeof(void *);
}
else
{
memcpy(argp, *p_argv, z);
z = 8;
}
}
else
{
/* Double or long long 64bit. */
memcpy (argp, *p_argv, z);
}
}
p_argv++;
argp += z;
}
}
return;
}
/* 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 = (unsigned) cif->rtype->type;
break;
case FFI_TYPE_STRUCT:
if (cif->rtype->size <= 4)
cif->flags = FFI_TYPE_INT;
else if (cif->rtype->size <= 8)
cif->flags = FFI_TYPE_DOUBLE;
else
cif->flags = (unsigned) cif->rtype->type;
break;
case FFI_TYPE_SINT64:
case FFI_TYPE_UINT64:
case FFI_TYPE_DOUBLE:
cif->flags = FFI_TYPE_DOUBLE;
break;
case FFI_TYPE_FLOAT:
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));
void ffi_call(ffi_cif *cif, void (*fn)(void), 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))
{
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, ecif.rvalue, fn);
if (cif->rtype->type == FFI_TYPE_STRUCT)
{
int size = cif->rtype->size;
int align = cif->rtype->alignment;
if (size < 4)
{
if (align == 1)
*(unsigned long *)(ecif.rvalue) <<= (4 - size) * 8;
}
else if (4 < size && size < 8)
{
if (align == 1)
{
memcpy (ecif.rvalue, ecif.rvalue + 8-size, size);
}
else if (align == 2)
{
if (size & 1)
size += 1;
if (size != 8)
memcpy (ecif.rvalue, ecif.rvalue + 8-size, size);
}
}
}
break;
default:
FFI_ASSERT(0);
break;
}
}

53
BeefySysLib/third_party/libffi/src/m32r/ffitarget.h vendored Normal file
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/* -----------------------------------------------------------------*-C-*-
ffitarget.h - Copyright (c) 2012 Anthony Green
Copyright (c) 2004 Renesas Technology.
Target configuration macros for M32R.
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 RENESAS TECHNOLOGY 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.
----------------------------------------------------------------------- */
#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
/* ---- Generic type definitions ----------------------------------------- */
#ifndef LIBFFI_ASM
typedef unsigned long ffi_arg;
typedef signed long ffi_sarg;
typedef enum ffi_abi
{
FFI_FIRST_ABI = 0,
FFI_SYSV,
FFI_LAST_ABI,
FFI_DEFAULT_ABI = FFI_SYSV
} ffi_abi;
#endif
#define FFI_CLOSURES 0
#define FFI_TRAMPOLINE_SIZE 24
#define FFI_NATIVE_RAW_API 0
#endif

121
BeefySysLib/third_party/libffi/src/m32r/sysv.S vendored Normal file
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/* -----------------------------------------------------------------------
sysv.S - Copyright (c) 2004 Renesas Technology
M32R 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 RENESAS TECHNOLOGY 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.
----------------------------------------------------------------------- */
#define LIBFFI_ASM
#include <fficonfig.h>
#include <ffi.h>
#ifdef HAVE_MACHINE_ASM_H
#include <machine/asm.h>
#else
/* XXX these lose for some platforms, I'm sure. */
#define CNAME(x) x
#define ENTRY(x) .globl CNAME(x)! .type CNAME(x),%function! CNAME(x):
#endif
.text
/* R0: ffi_prep_args */
/* R1: &ecif */
/* R2: cif->bytes */
/* R3: fig->flags */
/* sp+0: ecif.rvalue */
/* sp+4: fn */
/* This assumes we are using gas. */
ENTRY(ffi_call_SYSV)
/* Save registers. */
push fp
push lr
push r3
push r2
push r1
push r0
mv fp, sp
/* Make room for all of the new args. */
sub sp, r2
/* Place all of the ffi_prep_args in position. */
mv lr, r0
mv r0, sp
/* R1 already set. */
/* And call. */
jl lr
/* Move first 4 parameters in registers... */
ld r0, @(0,sp)
ld r1, @(4,sp)
ld r2, @(8,sp)
ld r3, @(12,sp)
/* ...and adjust the stack. */
ld lr, @(8,fp)
cmpi lr, #16
bc adjust_stack
ldi lr, #16
adjust_stack:
add sp, lr
/* Call the function. */
ld lr, @(28,fp)
jl lr
/* Remove the space we pushed for the args. */
mv sp, fp
/* Load R2 with the pointer to storage for the return value. */
ld r2, @(24,sp)
/* Load R3 with the return type code. */
ld r3, @(12,sp)
/* If the return value pointer is NULL, assume no return value. */
beqz r2, epilogue
/* Return INT. */
ldi r4, #FFI_TYPE_INT
bne r3, r4, return_double
st r0, @r2
bra epilogue
return_double:
/* Return DOUBLE or LONGDOUBLE. */
ldi r4, #FFI_TYPE_DOUBLE
bne r3, r4, epilogue
st r0, @r2
st r1, @(4,r2)
epilogue:
pop r0
pop r1
pop r2
pop r3
pop lr
pop fp
jmp lr
.ffi_call_SYSV_end:
.size CNAME(ffi_call_SYSV),.ffi_call_SYSV_end-CNAME(ffi_call_SYSV)