+2001-03-16 Martin Schwidefsky <schwidefsky@de.ibm.com>
+
+ * sysdeps/s390/s390-64/bits/huge_val.h: Move to...
+ * sysdeps/s390/bits/huge_val.h: ...here.
+ * sysdeps/s390/s390-32/bit/huge_val.h: Remove.
+ * sysdeps/s390/s390-64/ffs.c: Move to...
+ * sysdeps/s390/ffs.c: ...here.
+ * sysdeps/s390/s390-32/ffs.c: Remove.
+
2001-03-16 Jakub Jelinek <jakub@redhat.com>
* elf/ldconfig.c (search_dir): Remove bogus diagnostic, instead
-GNU C Library NEWS -- history of user-visible changes. 2001-3-11
+GNU C Library NEWS -- history of user-visible changes. 2001-3-16
Copyright (C) 1992-1999, 2000, 2001 Free Software Foundation, Inc.
See the end for copying conditions.
* An asynchronous name lookup library was added. The interface is designed
after POSIX AIO. The proposal was circulated beforehand to get comments.
No negative ones came in. Implemented by Ulrich Drepper.
+
+* Port to S390/64bit contributed by Martin Schwidefsky
+ <schwidefsky@de.ibm.com>.
\f
Version 2.2.2
+++ /dev/null
-/* Machine-dependent pthreads configuration and inline functions.
- S390 version.
- Copyright (C) 1999, 2000 Free Software Foundation, Inc.
- Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
- 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. */
-
-#ifndef PT_EI
-# define PT_EI extern inline
-#endif
-
-/* Spinlock implementation; required. */
-PT_EI long int
-testandset (int *spinlock)
-{
- int ret;
-
- __asm__ __volatile__(
- " la 1,%1\n"
- " lhi 0,1\n"
- " l %0,%1\n"
- "0: cs %0,0,0(1)\n"
- " jl 0b"
- : "=&d" (ret), "+m" (*spinlock)
- : : "0", "1", "cc");
-
- return ret;
-}
-
-
-/* Get some notion of the current stack. Need not be exactly the top
- of the stack, just something somewhere in the current frame. */
-#define CURRENT_STACK_FRAME stack_pointer
-register char * stack_pointer __asm__ ("15");
-
-/* Return the thread descriptor for the current thread.
- S/390 registers uses access register 0 as "thread register". */
-#define THREAD_SELF ({ \
- register pthread_descr __self; \
- __asm__ ("ear %0,%%a0" : "=d" (__self) ); \
- __self; \
-})
-
-/* Initialize the thread-unique value. */
-#define INIT_THREAD_SELF(descr, nr) ({ \
- __asm__ ("sar %%a0,%0" : : "d" (descr) ); \
-})
-
-/* Access to data in the thread descriptor is easy. */
-#define THREAD_GETMEM(descr, member) THREAD_SELF->member
-#define THREAD_GETMEM_NC(descr, member) THREAD_SELF->member
-#define THREAD_SETMEM(descr, member, value) THREAD_SELF->member = (value)
-#define THREAD_SETMEM_NC(descr, member, value) THREAD_SELF->member = (value)
-
-
-/* Compare-and-swap for semaphores. */
-
-#define HAS_COMPARE_AND_SWAP
-
-PT_EI int
-__compare_and_swap(long int *p, long int oldval, long int newval)
-{
- int retval;
-
- __asm__ __volatile__(
- " la 1,%1\n"
- " lr 0,%2\n"
- " cs 0,%3,0(1)\n"
- " ipm %0\n"
- " srl %0,28\n"
- "0:"
- : "=&d" (retval), "+m" (*p)
- : "d" (oldval) , "d" (newval)
- : "cc", "0", "1" );
- return retval == 0;
-}
-
-
-
-/* Get some notion of the current stack. Need not be exactly the top
- of the stack, just something somewhere in the current frame. */
-#define CURRENT_STACK_FRAME stack_pointer
-register char * stack_pointer __asm__ ("%r15");
--- /dev/null
+/* Machine-dependent pthreads configuration and inline functions.
+ S390 version.
+ Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+ Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
+ 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. */
+
+#ifndef PT_EI
+# define PT_EI extern inline
+#endif
+
+/* Spinlock implementation; required. */
+PT_EI long int
+testandset (int *spinlock)
+{
+ int ret;
+
+ __asm__ __volatile__(
+ " la 1,%1\n"
+ " lhi 0,1\n"
+ " l %0,%1\n"
+ "0: cs %0,0,0(1)\n"
+ " jl 0b"
+ : "=&d" (ret), "+m" (*spinlock)
+ : : "0", "1", "cc");
+
+ return ret;
+}
+
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME stack_pointer
+register char * stack_pointer __asm__ ("15");
+
+/* Return the thread descriptor for the current thread.
+ S/390 registers uses access register 0 as "thread register". */
+#define THREAD_SELF ({ \
+ register pthread_descr __self; \
+ __asm__ ("ear %0,%%a0" : "=d" (__self) ); \
+ __self; \
+})
+
+/* Initialize the thread-unique value. */
+#define INIT_THREAD_SELF(descr, nr) ({ \
+ __asm__ ("sar %%a0,%0" : : "d" (descr) ); \
+})
+
+/* Access to data in the thread descriptor is easy. */
+#define THREAD_GETMEM(descr, member) THREAD_SELF->member
+#define THREAD_GETMEM_NC(descr, member) THREAD_SELF->member
+#define THREAD_SETMEM(descr, member, value) THREAD_SELF->member = (value)
+#define THREAD_SETMEM_NC(descr, member, value) THREAD_SELF->member = (value)
+
+/* We want the OS to assign stack addresses. */
+#define FLOATING_STACKS 1
+
+/* Maximum size of the stack if the rlimit is unlimited. */
+#define ARCH_STACK_MAX_SIZE 8*1024*1024
+
+/* Compare-and-swap for semaphores. */
+
+#define HAS_COMPARE_AND_SWAP
+
+PT_EI int
+__compare_and_swap(long int *p, long int oldval, long int newval)
+{
+ int retval;
+
+ __asm__ __volatile__(
+ " la 1,%1\n"
+ " lr 0,%2\n"
+ " cs 0,%3,0(1)\n"
+ " ipm %0\n"
+ " srl %0,28\n"
+ "0:"
+ : "=&d" (retval), "+m" (*p)
+ : "d" (oldval) , "d" (newval)
+ : "cc", "0", "1" );
+ return retval == 0;
+}
+
+
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME stack_pointer
+register char * stack_pointer __asm__ ("%r15");
--- /dev/null
+/* `HUGE_VAL' constants for S/390 (where it is infinity).
+ Used by <stdlib.h> and <math.h> functions for overflow.
+ Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+ Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
+ 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. */
+
+#ifndef _MATH_H
+# error "Never use <bits/huge_val.h> directly; include <math.h> instead."
+#endif
+
+#include <features.h>
+
+/* IEEE positive infinity (-HUGE_VAL is negative infinity). */
+
+#if __GNUC_PREREQ(2,96)
+# define HUGE_VAL (__extension__ 0x1.0p2047)
+#else
+# define __HUGE_VAL_bytes { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 }
+
+# define __huge_val_t union { unsigned char __c[8]; double __d; }
+# ifdef __GNUC__
+# define HUGE_VAL (__extension__ \
+ ((__huge_val_t) { __c: __HUGE_VAL_bytes }).__d)
+# else /* Not GCC. */
+static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
+# define HUGE_VAL (__huge_val.__d)
+# endif /* GCC. */
+#endif /* GCC 2.95 */
+
+
+/* ISO C 99 extensions: (float) HUGE_VALF and (long double) HUGE_VALL. */
+
+#ifdef __USE_ISOC99
+
+# if __GNUC_PREREQ(2,96)
+# define HUGE_VALF (__extension__ 0x1.0p255f)
+# define HUGE_VALL (__extension__ 0x1.0p255f)
+# else
+# define __HUGE_VALF_bytes { 0x7f, 0x80, 0, 0 }
+# define __huge_valf_t union { unsigned char __c[4]; float __f; }
+# ifdef __GNUC__
+# define HUGE_VALF (__extension__ \
+ ((__huge_valf_t) { __c: __HUGE_VALF_bytes }).__f)
+# else /* Not GCC. */
+static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
+# define HUGE_VALF (__huge_valf.__f)
+# endif /* GCC. */
+
+/* On 390 there is no 'long double' format. Make it the same as 'double' */
+# define HUGE_VALL HUGE_VAL
+
+# endif /* GCC 2.95 */
+
+#endif /* __USE_ISOC99. */
--- /dev/null
+/* ffs -- find first set bit in a word, counted from least significant end.
+ S/390 version.
+ Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+ Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
+ 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. */
+
+#define ffsl __something_else
+#include <string.h>
+
+#undef ffs
+
+/* ffs: find first bit set. This is defined the same way as
+ the libc and compiler builtin ffs routines, therefore
+ differs in spirit from the above ffz (man ffs). */
+
+int
+__ffs (x)
+ int x;
+{
+ int r;
+
+ if (x == 0)
+ return 0;
+ __asm__(" lr %%r1,%1\n"
+ " sr %0,%0\n"
+ " tml %%r1,0xFFFF\n"
+ " jnz 0f\n"
+ " ahi %0,16\n"
+ " srl %%r1,16\n"
+ "0: tml %%r1,0x00FF\n"
+ " jnz 1f\n"
+ " ahi %0,8\n"
+ " srl %%r1,8\n"
+ "1: tml %%r1,0x000F\n"
+ " jnz 2f\n"
+ " ahi %0,4\n"
+ " srl %%r1,4\n"
+ "2: tml %%r1,0x0003\n"
+ " jnz 3f\n"
+ " ahi %0,2\n"
+ " srl %%r1,2\n"
+ "3: tml %%r1,0x0001\n"
+ " jnz 4f\n"
+ " ahi %0,1\n"
+ "4:"
+ : "=&d" (r) : "d" (x) : "cc", "1" );
+ return r+1;
+}
+
+weak_alias (__ffs, ffs)
+#undef ffsl
+weak_alias (__ffs, ffsl)
+
projects / platform / upstream / glibc.git / commitdiff