--- /dev/null
+/* 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
--- /dev/null
+/* 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");
+}
--- /dev/null
+/* 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
--- /dev/null
+/* 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));
+}
--- /dev/null
+/* 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;
+}
git://sourceware.org / glibc.git / commitdiff