* sysdeps/sparc/jmp_buf.h: Rewritten; use array of ints, not struct.
* sysdeps/sparc/setjmp.S: Rewritten; store %fp value as well.
* sysdeps/sparc/__longjmp.S: Rewritten; unwind frames one by one with
`restore' until the target frame is hit.
Sun Mar 10 20:29:40 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/sigsuspend.c: New file.
* sysdeps/unix/sysv/linux/syscalls.list: Remove sigsuspend, add
s_sigsuspend.
Thu Mar 7 21:30:58 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makerules (+make-deps, sed-remove-objpfx): Quote periods on the
left side of sed substitutions.
Sun Mar 10 16:58:10 1996 Ulrich Drepper <drepper@gnu.ai.mit.edu>
* stdio-common/printf_fp.c (hack_digit): __mpn_normal_size
is not available anymore. Do it ourselves.
* sysdeps/unix/sysv/linux/i386/fpu_control.h (_FPU_SETCW):
Correct GCC `asm' syntax.
* stdio-common/Makefile (tests): Add tst-ungetc.
* stdio-common/tst-ungetc.c: New test from drepper.
* stdio-common/tstscanf.c (main): New %[ test case from drepper.
* sysdeps/libm-ieee754/s_scalbn.c (scalbn): Rename to __scalbn;
somehow this was missed, though the weak alias is already there.
+Tue Mar 12 04:42:01 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
+
+ * sysdeps/sparc/jmp_buf.h: Rewritten; use array of ints, not struct.
+ * sysdeps/sparc/setjmp.S: Rewritten; store %fp value as well.
+ * sysdeps/sparc/__longjmp.S: Rewritten; unwind frames one by one with
+ `restore' until the target frame is hit.
+
+Sun Mar 10 20:29:40 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+ * sysdeps/unix/sysv/linux/sigsuspend.c: New file.
+ * sysdeps/unix/sysv/linux/syscalls.list: Remove sigsuspend, add
+ s_sigsuspend.
+
+Thu Mar 7 21:30:58 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+ * Makerules (+make-deps, sed-remove-objpfx): Quote periods on the
+ left side of sed substitutions.
+
+Sun Mar 10 16:58:10 1996 Ulrich Drepper <drepper@gnu.ai.mit.edu>
+
+ * stdio-common/printf_fp.c (hack_digit): __mpn_normal_size
+ is not available anymore. Do it ourselves.
+
+ * sysdeps/unix/sysv/linux/i386/fpu_control.h (_FPU_SETCW):
+ Correct GCC `asm' syntax.
+
Tue Mar 12 03:15:02 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
+ * stdio-common/Makefile (tests): Add tst-ungetc.
+ * stdio-common/tst-ungetc.c: New test from drepper.
+ * stdio-common/tstscanf.c (main): New %[ test case from drepper.
+
+ * sysdeps/libm-ieee754/s_scalbn.c (scalbn): Rename to __scalbn;
+ somehow this was missed, though the weak alias is already there.
+
* sysdeps/unix/sysv/linux/i386/fpu_control.h (_FPU_DEFAULT): Change
default to double precision, all interrupts masked; fdlibm requires.
define +make-deps
-@rm -f $@
$(+mkdep) $< $(CPPFLAGS) $($(<:$*.%=%)-CPPFLAGS) | \
-sed -e 's,$*\.o,$(foreach o,$(object-suffixes),$(@:.d=$o)) $@,' \
+sed -e 's,$(subst .,\.,$*)\.o,$(foreach o,$(object-suffixes),$(@:.d=$o)) $@,' \
$(sed-remove-objpfx) > $(@:.d=.T)
mv -f $(@:.d=.T) $@
endef
ifneq (,$(objpfx))
-sed-remove-objpfx = -e 's@ $(subst @,\@,$(objpfx))@ $$(objpfx)@g' \
- -e 's@^$(subst @,\@,$(objpfx))@$$(objpfx)@g'
+sed-remove-objpfx = -e 's@ $(subst .,\., \
+ $(subst @,\@,$(objpfx)))@ $$(objpfx)@g' \
+ -e 's@^$(subst .,\.,$(subst @,\@,$(objpfx)))@$$(objpfx)@g'
endif
\f
# Figure out the source filenames in this directory.
distribute := _itoa.h printf-parse.h
tests := tst-printf tstscanf test_rdwr test-popen tstgetln test-fseek \
- temptest tst-fileno test-fwrite \
+ temptest tst-fileno test-fwrite tst-ungetc \
xbug errnobug \
bug1 bug2 bug3 bug4 bug5 bug6 bug7 bug8 bug9 bug10 bug11 \
tfformat tiformat tstdiomisc \
tmp[fracsize - scalesize] = hi;
hi = tmp[0];
- fracsize = __mpn_normal_size (frac, scalesize);
+ fracsize = scalesize;
+ while (fracsize != 0 && frac[fracsize - 1] == 0)
+ --fracsize;
if (fracsize == 0)
{
/* We're not prepared for an mpn variable with zero
--- /dev/null
+/* Test for ungetc bugs. */
+
+#include <stdio.h>
+
+#define assert(x) \
+ if (!(x)) \
+ { \
+ fputs ("test failed: " #x "\n", stderr); \
+ retval = 1; \
+ goto the_end; \
+ }
+
+int
+main (int argc, char *argv[])
+{
+ char *name;
+ FILE *fp = NULL;
+ int retval = 0;
+ int c;
+
+ name = tmpnam (NULL);
+ fp = fopen (name, "w");
+ assert (fp != NULL)
+ fputs ("bl", fp);
+ fclose (fp);
+ fp = NULL;
+
+ fp = fopen (name, "r");
+ assert (fp != NULL)
+ assert (getc (fp) != EOF);
+ assert ((c = getc (fp)) != EOF);
+ assert (getc (fp) == EOF);
+ assert (ungetc (c, fp) == c);
+ assert (feof (fp) == 0);
+
+the_end:
+ if (fp != NULL)
+ fclose (fp);
+ unlink (name);
+
+ return retval;
+}
-/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1996 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
if (sscanf ("0", "%d", &x) != 1)
exit (EXIT_FAILURE);
+ sscanf ("conversion] Zero flag Ze]ro#\n", "%*[^]] %[^#]\n", buf);
+ if (strcmp (buf, "] Zero flag Ze]ro") != 0)
+ {
+ fputs ("test failed!", stderr);
+ return 1;
+ }
+
if (argc == 2 && !strcmp (argv[1], "-opipe"))
{
out = popen ("/bin/cat", "w");
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
+ * software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
static char rcsid[] = "$NetBSD: s_scalbn.c,v 1.8 1995/05/10 20:48:08 jtc Exp $";
#endif
-/*
+/*
* scalbn (double x, int n)
- * scalbn(x,n) returns x* 2**n computed by exponent
- * manipulation rather than by actually performing an
+ * scalbn(x,n) returns x* 2**n computed by exponent
+ * manipulation rather than by actually performing an
* exponentiation or a multiplication.
*/
tiny = 1.0e-300;
#ifdef __STDC__
- double scalbn (double x, int n)
+ double __scalbn (double x, int n)
#else
- double scalbn (x,n)
+ double __scalbn (x,n)
double x; int n;
#endif
{
k = (hx&0x7ff00000)>>20; /* extract exponent */
if (k==0) { /* 0 or subnormal x */
if ((lx|(hx&0x7fffffff))==0) return x; /* +-0 */
- x *= two54;
+ x *= two54;
GET_HIGH_WORD(hx,x);
- k = ((hx&0x7ff00000)>>20) - 54;
+ k = ((hx&0x7ff00000)>>20) - 54;
if (n< -50000) return tiny*x; /*underflow*/
}
if (k==0x7ff) return x+x; /* NaN or Inf */
- k = k+n;
- if (k > 0x7fe) return huge*copysign(huge,x); /* overflow */
+ k = k+n;
+ if (k > 0x7fe) return huge*__copysign(huge,x); /* overflow */
if (k > 0) /* normal result */
{SET_HIGH_WORD(x,(hx&0x800fffff)|(k<<20)); return x;}
if (k <= -54)
if (n > 50000) /* in case integer overflow in n+k */
- return huge*copysign(huge,x); /*overflow*/
- else return tiny*copysign(tiny,x); /*underflow*/
+ return huge*__copysign(huge,x); /*overflow*/
+ else return tiny*__copysign(tiny,x); /*underflow*/
k += 54; /* subnormal result */
SET_HIGH_WORD(x,(hx&0x800fffff)|(k<<20));
return x*twom54;
-/* Copyright (C) 1991, 1993 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1993, 1996 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
Cambridge, MA 02139, USA. */
#include <sysdep.h>
-#ifdef __svr4__
-#include <sys/trap.h>
-#else
-#include <machine/trap.h>
-#endif
-/* NOTE: This code depends on the definition of `__jmp_buf' in <jmp_buf.h>. */
+#include <jmp_buf.h>
+#define ENV(reg) [%g1 + (reg * 4)]
ENTRY (__longjmp)
- /* Do a "flush register windows trap". The trap handler in the
- kernel writes all the register windows to their stack slots, and
- marks them all as invalid (needing to be sucked up from the
- stack when used). This ensures that all information needed to
- unwind to these callers is in memory, not in the register
- windows. */
- ta ST_FLUSH_WINDOWS
- ld [%o0], %o7 /* Return PC. */
- ld [%o0 + 4], %fp /* Saved SP. */
- sub %fp, 64, %sp /* Allocate a register save area. */
-
- /* if (%o1 == 0) %o1 = 1; */
- tst %o1
- be,a Ldone
- mov 1, %o1
-
-Ldone: retl
- /* On the way out, put the return value in %o0. */
- restore %o1, 0, %o0
+ /* Store our arguments in global registers so we can still
+ use them while unwinding frames and their register windows. */
+ mov %o0, %g1 /* ENV in %g1 */
+ orcc %o1, %g0, %g6 /* VAL in %g6 */
+ be,a 0f /* Branch if zero; else skip delay slot. */
+ mov 1, %g6 /* Delay slot only hit if zero: VAL = 1. */
+0:
+
+ /* Cache target FP in register %g7. */
+ ld ENV (JB_FP), %g7
+
+ /* Now we will loop, unwinding the register windows up the stack
+ until the restored %fp value matches the target value in %g7. */
+
+loop: cmp %fp, %g7 /* Have we reached the target frame? */
+ bl,a loop /* Loop while current fp is below target. */
+ restore /* Unwind register window in delay slot. */
+ be,a found /* Better have hit it exactly. */
+ ld ENV (JB_SP), %o0 /* Delay slot: extract target SP. */
+
+bogus: /* Get here only if the jmp_buf or stack is clobbered. */
+ call C_SYMBOL_NAME (abort)
+ nop
+ unimp 0
+
+found: /* We have unwound register windows so %fp matches the target. */
+ cmp %o0, %sp /* Check jmp_buf SP vs register window. */
+ bge,a sp_ok /* Saved must not be deeper than register. */
+ mov %o0, %sp /* OK, install new SP. */
+ b,a bogus /* Bogus, we lose. */
+
+sp_ok: ld ENV (JB_PC), %o0 /* Extract target return PC. */
+ jmp %o0 + 8 /* Return there. */
+ mov %g6, %o0 /* Delay slot: set return value. */
-/* Copyright (C) 1991, 1993, 1994 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1993, 1994, 1996 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
Cambridge, MA 02139, USA. */
#include <sysdep.h>
-
-/* NOTE: This code depends on the definition of `__jmp_buf' in <jmp_buf.h>. */
+#include <jmp_buf.h>
ENTRY (__sigsetjmp)
- /* Save our return PC and SP (second store in the jmp delay slot). */
- st %o7, [%o0]
- /* Save the signal mask if requested. We do this as a tail-call
+ /* Save our SP and FP; in the delay slot of the jump, save our
+ return PC. Save the signal mask if requested with a tail-call
for simplicity; it always returns zero. */
sethi %hi(C_SYMBOL_NAME (__sigjmp_save)), %g1
+ st %sp, [%o0 + (JB_SP*4)]
or %lo(C_SYMBOL_NAME (__sigjmp_save)), %g1, %g1
+ st %fp, [%o0 + (JB_FP*4)]
jmp %g1
- st %sp, [%o0 + 4]
+ st %o7, [%o0 + (JB_PC*4)]
/* Macros for accessing the hardware control word. */
#define _FPU_GETCW(cw) __asm__ ("fnstcw %0" : "=m" (cw))
-#define _FPU_SETCW(cw) __asm__ ("fldcw %0" : "m" (cw))
+#define _FPU_SETCW(cw) __asm__ ("fldcw %0" : : "m" (cw))
/* Default control word set at startup. */
extern fpu_control_t __fpu_control;
--- /dev/null
+/* Copyright (C) 1996 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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <signal.h>
+#include <stddef.h>
+#include <unistd.h>
+
+extern int __syscall_sigsuspend (int, unsigned long, unsigned long);
+
+/* Change the set of blocked signals to SET,
+ wait until a signal arrives, and restore the set of blocked signals. */
+int
+DEFUN(sigsuspend, (set), CONST sigset_t *set)
+{
+ return __syscall_sigsuspend (0, 0, *set);
+}
pipe - pipe 1 __pipe pipe
reboot - reboot 3 reboot
s_ptrace ptrace ptrace 4 __syscall_ptrace
+s_sigsuspend sigsuspend sigsuspend 3 __syscall_sigsuspend
setpgid - setpgid 2 setpgid
sigpending - sigpending 1 sigpending
sigprocmask - sigprocmask 3 __sigprocmask sigprocmask
-sigsuspend - sigsuspend 1 sigsuspend
stty - stty 2 stty
umount - umount 1 __umount umount
wait4 - wait4 4 __wait4 wait4
projects / thirdparty / glibc.git / commitdiff
