669dcb606e
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Message-ID: <20230823065335.1919380-18-mjt@tls.msk.ru> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-ID: <20230823065335.1919380-19-mjt@tls.msk.ru> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
|
|
* TCG Helper Information Structure
|
|
*
|
|
* Copyright (c) 2023 Linaro Ltd
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#ifndef TCG_HELPER_INFO_H
|
|
#define TCG_HELPER_INFO_H
|
|
|
|
#ifdef CONFIG_TCG_INTERPRETER
|
|
#include <ffi.h>
|
|
#endif
|
|
|
|
/*
|
|
* Describe the calling convention of a given argument type.
|
|
*/
|
|
typedef enum {
|
|
TCG_CALL_RET_NORMAL, /* by registers */
|
|
TCG_CALL_RET_BY_REF, /* for i128, by reference */
|
|
TCG_CALL_RET_BY_VEC, /* for i128, by vector register */
|
|
} TCGCallReturnKind;
|
|
|
|
typedef enum {
|
|
TCG_CALL_ARG_NORMAL, /* by registers (continuing onto stack) */
|
|
TCG_CALL_ARG_EVEN, /* like normal, but skipping odd slots */
|
|
TCG_CALL_ARG_EXTEND, /* for i32, as a sign/zero-extended i64 */
|
|
TCG_CALL_ARG_EXTEND_U, /* ... as a zero-extended i64 */
|
|
TCG_CALL_ARG_EXTEND_S, /* ... as a sign-extended i64 */
|
|
TCG_CALL_ARG_BY_REF, /* for i128, by reference, first */
|
|
TCG_CALL_ARG_BY_REF_N, /* ... by reference, subsequent */
|
|
} TCGCallArgumentKind;
|
|
|
|
typedef struct TCGCallArgumentLoc {
|
|
TCGCallArgumentKind kind : 8;
|
|
unsigned arg_slot : 8;
|
|
unsigned ref_slot : 8;
|
|
unsigned arg_idx : 4;
|
|
unsigned tmp_subindex : 2;
|
|
} TCGCallArgumentLoc;
|
|
|
|
struct TCGHelperInfo {
|
|
void *func;
|
|
const char *name;
|
|
|
|
/* Used with g_once_init_enter. */
|
|
#ifdef CONFIG_TCG_INTERPRETER
|
|
ffi_cif *cif;
|
|
#else
|
|
uintptr_t init;
|
|
#endif
|
|
|
|
unsigned typemask : 32;
|
|
unsigned flags : 8;
|
|
unsigned nr_in : 8;
|
|
unsigned nr_out : 8;
|
|
TCGCallReturnKind out_kind : 8;
|
|
|
|
/* Maximum physical arguments are constrained by TCG_TYPE_I128. */
|
|
TCGCallArgumentLoc in[MAX_CALL_IARGS * (128 / TCG_TARGET_REG_BITS)];
|
|
};
|
|
|
|
#endif /* TCG_HELPER_INFO_H */
|