mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
entered into RCS
This commit is contained in:
parent
47688c639e
commit
4dd8b03944
@ -1,4 +1,4 @@
|
||||
/* Copyright (C) 1991 Free Software Foundation, Inc.
|
||||
/* Copyright (C) 1991, 1992 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
|
||||
@ -19,7 +19,7 @@ Cambridge, MA 02139, USA. */
|
||||
#ifndef _68881_SWITCH_H
|
||||
|
||||
#define _68881_SWITCH_H 1
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
|
||||
/* This is the format of the data at the code label for a function which
|
||||
wants to switch depending on whether or not a 68881 is present.
|
||||
@ -33,9 +33,9 @@ Cambridge, MA 02139, USA. */
|
||||
struct switch_caller
|
||||
{
|
||||
unsigned short int insn; /* The `jsr' or `jmp' instruction. */
|
||||
PTR target; /* The target of the instruction. */
|
||||
PTR soft; /* The address of the soft function. */
|
||||
PTR fpu; /* The address of the 68881 function. */
|
||||
__ptr_t target; /* The target of the instruction. */
|
||||
__ptr_t soft; /* The address of the soft function. */
|
||||
__ptr_t fpu; /* The address of the 68881 function. */
|
||||
};
|
||||
|
||||
/* These are opcodes (values for `insn', above) for `jmp' and `jsr'
|
||||
@ -50,20 +50,14 @@ struct switch_caller
|
||||
extern void EXFUN(__68881_switch, (int __dummy));
|
||||
|
||||
|
||||
#ifdef __STDC__
|
||||
#define __paste(a, b) a ## b
|
||||
#else
|
||||
#define __paste(a, b) a/**/b
|
||||
#endif
|
||||
|
||||
/* Define FUNCTION as a `struct switch_caller' which will call
|
||||
`__FUNCTION_68881' if a 68881 is present, and `__FUNCTION_soft' if not.
|
||||
#define switching_function(FUNCTION) \
|
||||
struct switch_caller FUNCTION = \
|
||||
{ \
|
||||
JSR, (PTR) __68881_switch, \
|
||||
__paste(__paste(__, FUNCTION), _soft), \
|
||||
__paste(__paste(__, FUNCTION), _68881) \
|
||||
JSR, (__ptr_t) __68881_switch, \
|
||||
__CONCAT(__CONCAT(__,FUNCTION),_soft), \
|
||||
__CONCAT(__CONCAT(__,FUNCTION),_68881) \
|
||||
}
|
||||
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user