tile: prefer <arch/intreg.h> to __need_int_reg_t

As part of some work in glibc to move away from the "__need" prefix,
this commit breaks away the definitions of __int_reg_t, __uint_reg_t,
__INT_REG_BITS, and __INT_REG_FMT to a separate <arch/intreg.h>
"microheader".  It is then included from <arch/abi.h> to preserve
the semantics of the previous header.

For now, we continue to preserve the __need_int_reg_t semantics
in <arch/abi.h> as well, but anticipate that after a few years
we can obsolete it.
This commit is contained in:
Chris Metcalf 2017-03-23 11:31:19 -04:00
parent c02ed2e75e
commit 34649f72b6
2 changed files with 74 additions and 45 deletions

View File

@ -20,58 +20,17 @@
#ifndef __ARCH_ABI_H__
#if !defined __need_int_reg_t && !defined __DOXYGEN__
# define __ARCH_ABI_H__
# include <arch/chip.h>
#endif
/* Provide the basic machine types. */
#ifndef __INT_REG_BITS
/** Number of bits in a register. */
#if defined __tilegx__
# define __INT_REG_BITS 64
#elif defined __tilepro__
# define __INT_REG_BITS 32
#elif !defined __need_int_reg_t
#ifndef __tile__ /* support uncommon use of arch headers in non-tile builds */
# include <arch/chip.h>
# define __INT_REG_BITS CHIP_WORD_SIZE()
#else
# error Unrecognized architecture with __need_int_reg_t
#endif
#if __INT_REG_BITS == 64
#ifndef __ASSEMBLER__
/** Unsigned type that can hold a register. */
typedef unsigned long long __uint_reg_t;
/** Signed type that can hold a register. */
typedef long long __int_reg_t;
#endif
/** String prefix to use for printf(). */
#define __INT_REG_FMT "ll"
#else
#ifndef __ASSEMBLER__
/** Unsigned type that can hold a register. */
typedef unsigned long __uint_reg_t;
/** Signed type that can hold a register. */
typedef long __int_reg_t;
#endif
/** String prefix to use for printf(). */
#define __INT_REG_FMT "l"
#endif
#endif /* __INT_REG_BITS */
#include <arch/intreg.h>
/* __need_int_reg_t is deprecated: just include <arch/intreg.h> */
#ifndef __need_int_reg_t
#define __ARCH_ABI_H__
#ifndef __ASSEMBLER__
/** Unsigned type that can hold a register. */

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@ -0,0 +1,70 @@
/*
* Copyright 2017 Tilera Corporation. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, version 2.
*
* This program 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, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for
* more details.
*/
/**
* @file
*
* Provide types and defines for the type that can hold a register,
* in the implementation namespace.
*/
#ifndef __ARCH_INTREG_H__
#define __ARCH_INTREG_H__
/*
* Get number of bits in a register. __INT_REG_BITS may be defined
* prior to including this header to force a particular bit width.
*/
#ifndef __INT_REG_BITS
# if defined __tilegx__
# define __INT_REG_BITS 64
# elif defined __tilepro__
# define __INT_REG_BITS 32
# else
# error Unrecognized architecture
# endif
#endif
#if __INT_REG_BITS == 64
# ifndef __ASSEMBLER__
/** Unsigned type that can hold a register. */
typedef unsigned long long __uint_reg_t;
/** Signed type that can hold a register. */
typedef long long __int_reg_t;
# endif
/** String prefix to use for printf(). */
# define __INT_REG_FMT "ll"
#elif __INT_REG_BITS == 32
# ifndef __ASSEMBLER__
/** Unsigned type that can hold a register. */
typedef unsigned long __uint_reg_t;
/** Signed type that can hold a register. */
typedef long __int_reg_t;
# endif
/** String prefix to use for printf(). */
# define __INT_REG_FMT "l"
#else
# error Unrecognized value of __INT_REG_BITS
#endif
#endif /* !__ARCH_INTREG_H__ */