AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-11-24 22:10:13 +00:00
Code Issues Packages Projects Releases Wiki Activity

Initial revision

Browse Source
This commit is contained in:
Roland McGrath 1991-06-12 22:41:10 +00:00
parent 868236e8e9
commit 7d8d1a9564
5 changed files with 277 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
sysdeps/unix/bsd/sun/m68k/sethostid.S Normal file
View File

@ -0,0 +1,45 @@
/* Copyright (C) 1991 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <sysdep.h>
#ifdef SYS_sethostid
SYSCALL (sethostid)
ret
#else
#include <gnu/errno.h>
.globl _sethostid
.even
_sethostid:
movel #ENOSYS, ___errno
moveq #-1, d0
rts
#ifdef __GNU_STAB__
#include <gnu-stabs.h>
stub_warning(sethostid);
#endif
#endif

96
sysdeps/vax/__longjmp.c Normal file
View File

@ -0,0 +1,96 @@
/* Copyright (C) 1991 Free Software Foundation, Inc.
Derived from @(#)_setjmp.s 5.7 (Berkeley) 6/27/88,
Copyright (c) 1980 Regents of the University of California.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <setjmp.h>
#define REI 02 /* Vax `rei' opcode. */
/* Jump to the position specified by ENV, causing the
setjmp call there to return VAL, or 1 if VAL is 0. */
__NORETURN
void
DEFUN(__longjmp, (env, val), CONST jmp_buf env AND int val)
{
register long int *fp asm("fp");
long int *regsave;
unsigned long int flags;
if (env.__fp == NULL)
__libc_fatal("longjmp: Invalid ENV argument.\n");
if (val == 0)
val = 1;
asm volatile("loop:");
flags = *(long int *) (6 + (char *) fp);
regsave = (long int *) (20 + (char *) fp);
if (flags & 1)
/* R0 was saved by the caller.
Store VAL where it will be restored from. */
*regsave++ = val;
if (flags & 2)
/* R1 was saved by the caller.
Store ENV where it will be restored from. */
*regsave = env;
/* Was the FP saved in the last call the same one in ENV? */
asm volatile("cmpl %0, 12(fp);"
/* Yes, return to it. */
"beql done;"
/* The FP in ENV is less than the one saved in the last call.
This means we have already returned from the function that
called `setjmp' with ENV! */
"blssu latejump;" : /* No outputs. */ : "g" (env.__fp));
/* We are more than one level below the state in ENV.
Return to where we will pop another stack frame. */
asm volatile("movl $loop, 16(fp);"
"ret");
asm volatile("done:");
{
char return_insn asm("*16(fp)");
if (return_insn == REI)
/* We're returning with an `rei' instruction.
Do a return with PSL-PC pop. */
asm volatile("movab 0f, 16(fp)");
else
/* Do a standard return. */
asm volatile("movab 1f, 16(fp)");
/* Return. */
asm volatile("ret");
}
asm volatile("0:" /* `rei' return. */
/* Compensate for PSL-PC push. */
"addl2 %0, sp;"
"1:" /* Standard return. */
/* Return to saved PC. */
"jmp %1" : /* No outputs. */ :
"g" (8), "g" (env.__pc));
/* Jump here when the FP saved in ENV points
to a function that has already returned. */
asm volatile("latejump:");
__libc_fatal("longjmp: Attempt to jump to a function that has returned.\n");
}

60
sysdeps/vax/infnan.c Normal file
View File

@ -0,0 +1,60 @@
/* Copyright (C) 1991 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#ifndef __GNUC__
#include <../sysdeps/generic/infnan.c>
#else
#include <ansidecl.h>
#include <errno.h>
#include <math.h>
/* Deal with an infinite or NaN result.
If ERROR is ERANGE, result is +Inf;
if ERROR is - ERANGE, result is -Inf;
otherwise result is NaN.
This will set `errno' to either ERANGE or EDOM,
and may return an infinity or NaN, or may do something else. */
double
DEFUN(__infnan, (error), int error)
{
switch (error)
{
case ERANGE:
errno = ERANGE;
break;
case - ERANGE:
errno = ERANGE;
break;
default:
errno = EDOM;
break;
}
/* Trigger a reserved operand fault. */
{
double result;
asm volatile("emodd %1, %1, %2, %0, %0" : "=r" (result) :
"i" (0), "i" (0x8000));
return result;
}
}
#endif

43
sysdeps/vax/memccpy.c Normal file
View File

@ -0,0 +1,43 @@
/* Copyright (C) 1991 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <string.h>
/* Copy no more than N bytes of SRC to DEST, stopping when C is found.
Return the position in DEST one byte past where C was copied,
or NULL if C was not found in the first NBYTES bytes of SRC. */
PTR
DEFUN(__memccpy, (dest, src, c, n),
PTR dest AND CONST PTR src AND int c AND size_t nbytes)
{
/* Except when NBYTES > 65535, this is what a hand-coded version would
do anyway. */
PTR found = memchr(src, c, n);
if (found == NULL)
{
(void) memcpy(dest, src, n);
return NULL;
}
(void) memcpy(dest, src, (char *) found + 1 - (char *) src);
return (PTR) ((char *) dest + ((char *) found + 1 - (char *) src));
}

33
sysdeps/vax/setjmp.c Normal file
View File

@ -0,0 +1,33 @@
/* Copyright (C) 1991 Free Software Foundation, Inc.
Derived from @(#)_setjmp.s 5.7 (Berkeley) 6/27/88,
Copyright (c) 1980 Regents of the University of California.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <setjmp.h>
/* Save the current program position in ENV and return 0. */
int
DEFUN(__setjmp, (env), jmp_buf env)
{
/* Save our caller's FP and PC. */
asm("movl 12(fp), %0" : "=g" (env[0].__fp));
asm("movl 16(fp), %0" : "=g" (env[0].__pc));
return 0;
}