mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-28 07:41:05 +00:00
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/* Miscellaneous macros.
|
|
Copyright (C) 2000-2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library. If not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _SYS_ASM_H
|
|
#define _SYS_ASM_H
|
|
|
|
/* Macros to handle different pointer/register sizes for 32/64-bit code. */
|
|
#if __riscv_xlen == 64
|
|
# define PTRLOG 3
|
|
# define SZREG 8
|
|
# define REG_S sd
|
|
# define REG_L ld
|
|
#elif __riscv_xlen == 32
|
|
# define PTRLOG 2
|
|
# define SZREG 4
|
|
# define REG_S sw
|
|
# define REG_L lw
|
|
#else
|
|
# error __riscv_xlen must equal 32 or 64
|
|
#endif
|
|
|
|
#if !defined __riscv_float_abi_soft
|
|
/* For ABI uniformity, reserve 8 bytes for floats, even if double-precision
|
|
floating-point is not supported in hardware. */
|
|
# if defined __riscv_float_abi_double
|
|
# define FREG_L fld
|
|
# define FREG_S fsd
|
|
# define SZFREG 8
|
|
# else
|
|
# error unsupported FLEN
|
|
# endif
|
|
#endif
|
|
|
|
/* Declare leaf routine. */
|
|
#define LEAF(symbol) \
|
|
.globl symbol; \
|
|
.align 2; \
|
|
.type symbol,@function; \
|
|
symbol: \
|
|
cfi_startproc;
|
|
|
|
/* Mark end of function. */
|
|
#undef END
|
|
#define END(function) \
|
|
cfi_endproc; \
|
|
.size function,.-function
|
|
|
|
/* Stack alignment. */
|
|
#define ALMASK ~15
|
|
|
|
#endif /* sys/asm.h */
|