From f21acc89c06c14160eab88246e9dbe0b17eb5f89 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sat, 12 Jul 1997 23:35:19 +0000 Subject: Update. 1997-07-13 01:18 Ulrich Drepper * setjmp/setjmp.h: Define _setjmp and _longjmp also if __USE_XOPEN. * sysdeps/unix/sysv/linux/bits/ipc.h: Fix comment. * sysdeps/unix/sysv/linux/bits/msq.h: Likewise. * sysdeps/unix/sysv/linux/bits/sem.h: Likewise. * sysdeps/unix/sysv/linux/bits/shm.h: Likewise. * time/Makefile (routines): Add getdate. * time/time.h: Add prototype for getdate and getdate_r. * time/getdate.c: New file. Provided by Mark Kettenis . 1997-06-30 14:49 H.J. Lu From Ralf Baechle on Sat Jun 21 18:11:21 1997: * sysdeps/unix/sysv/linux/syscalls.list (swapon): Add __swapon alias. (swapoff): New. * elf/Makefile: Add linker script support. (headers): Add bits/dlfcn.h. * elf/dl-load.c (MAP_BASE_ADDR): New. * elf/dlfcn.h: Include . * elf/elf.h: Add MIPS support. * sysdeps/generic/Dist: Add entry.h. * sysdeps/generic/entry.h: New, define the entry symbol. * elf/rtld.c (_start): Include . Change to ENTRY_POINT. * sysdeps/generic/dl-sysdep.c (_start): Likewise. * mips/elf/start.S (_start): Likewise. * sysdeps/mips/bsd-_setjmp.S: Fix PIC. * sysdeps/mips/bsd-setjmp.S: Likewise. * sysdeps/mips/setjmp.S: Likewise. * mips/elf/start.S: Likewise. * sysdeps/unix/mips/brk.S: Likewise. * sysdeps/unix/mips/sysdep.S: Likewise. * sysdeps/unix/mips/sysdep.h: Likewise. * sysdeps/unix/mips/wait.S: Likewise. * sysdeps/mips/dl-machine.h: Update for Linux/MIPS. * sysdeps/mips/fpu_control.h: Likewise. * sysdeps/generic/bits/dlfcn.h: New file. * sysdeps/mips/rtld-ldscript.in: New for Linux/MIPS. * sysdeps/mips/rtld-parms: Likewise. * sysdeps/mips/bits/dlfcn.h: Likewise. * sysdeps/mips/mips64/rtld-parms: Likewise. * sysdeps/mips/mipsel/rtld-parms: Likewise. * sysdeps/unix/sysv/linux/mips/Dist: Likewise. * sysdeps/unix/sysv/linux/mips/Makefile: Likewise. * sysdeps/unix/sysv/linux/mips/clone.S: Likewise. * sysdeps/unix/sysv/linux/mips/entry.h: Likewise. * sysdeps/unix/sysv/linux/mips/fpregdef.h: Likewise. * sysdeps/unix/sysv/linux/mips/fxstat.c: Likewise. * sysdeps/unix/sysv/linux/mips/kernel_sigaction.h: Likewise. * sysdeps/unix/sysv/linux/mips/kernel_stat.h: Likewise. * sysdeps/unix/sysv/linux/mips/kernel_termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/lxstat.c: Likewise. * sysdeps/unix/sysv/linux/mips/regdef.h: Likewise. * sysdeps/unix/sysv/linux/mips/sgidefs.h: Likewise. * sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/mips/ustat.c: Likewise. * sysdeps/unix/sysv/linux/mips/xmknod.c: Likewise. * sysdeps/unix/sysv/linux/mips/xstat.c: Likewise. * sysdeps/unix/sysv/linux/mips/bits/endian.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/fcntl.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/ioctl-types.h: * sysdeps/unix/sysv/linux/mips/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/shm.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/signum.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/socket.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/stat.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/statfs.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/time.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/acct.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/asm.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/cachectl.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/fpregdef.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/regdef.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/syscall.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/sysmips.h: Likewise. 1997-04-09 19:05 H.J. Lu (hjl@gnu.ai.mit.edu) * isomac.c (xstrndup): New, use it instead of strndup (). 1997-07-02 08:55 H.J. Lu * sysdeps/i386/dl-machine.h (elf_machine_rel): Print the program name for different sizes. 1997-07-10 15:47 Fila Kolodny * nis/ypclnt.c: Change references to MAXHOSTNAMELEN to NIS_MAXNAMELEN. Add include of rpcsvc/nis.h. * inet/getnameinfo.c: Delete references to MAXHOSTNAMELEN. * sysdeps/posix/getaddrinfo.c: Likewise. Change size of variable buffer to be big enough to hold an IPv6 address in printable format. 1997-07-12 18:47 Ulrich Drepper * assert/assert.h [!NDEBUG] (assert, assert_perror): Don't use || and && in tests to allow use in C++ code which overloads these operators. Reported by Istvan Marko . * configure.in: Move mips64* recognition before mips*. Patch by Zack Weinberg . 1997-07-03 20:44 Andreas Schwab * Makerules (lib%.so, $(common-objpfx)libc.so): Don't use automatic variables in dependency lists. (build-shlib): Always filter out the version script file. * extra-lib.mk ($(objpfx)$(lib).so): Depend on version script. 1997-07-12 17:56 Ulrich Drepper * login/login.c (tty_name): Test return value of ttyname_r for != 0, not < 0. * misc/ttyslot.c (ttyslot): Test return value of ttyname_r for == 0, not >= 0. * sysdeps/unix/getlogin.c (getlogin): Test return value of ttyname_r for != 0. * sysdeps/unix/getlogin_r.c (getlogin_r): Likewise. 1997-07-10 Andreas Jaeger * login/utmp_file.c (getutline_r_file): Fix type: compare with *result. 1997-07-11 00:21 Mark Kettenis * login/Makefile (headers): Add utmpx.h and bits/utmpx.h. 1997-07-09 19:21 Mark Kettenis * login/programs/utmpd.c, login/programs/database.c, login/programs/request.c: Prepare messages for internationalization. * login/programs/utmpd.c: (main): Change handling of errors in opening the database. * login/programs/database.c: (open_database, synchronize_dtatabase, initialize_database): Properly handle errors. (get_mtime): Use fstat instead of stat. All callers changed. * login/getutent_r.c: Make setutxent a weak alias for __setutxent. * login/getutent.c: Rename getutent to __getutent and make getutent a weak alias. Make getutxent a weak alias for __getutent. * login/utmpx.h: New file. * sysdeps/gnu/bits/utmp.h: Cleanup. Added comments. * sysdeps/gnu/bits/utmpx.h: New file. * stdio-common/strops.c: Partialy undo last change. Will need more investigation. --- sysdeps/mips/fpu_control.h | 90 +++++++++++++++++++++++++--------------------- 1 file changed, 50 insertions(+), 40 deletions(-) (limited to 'sysdeps/mips/fpu_control.h') diff --git a/sysdeps/mips/fpu_control.h b/sysdeps/mips/fpu_control.h index 36e05a4f6e..e271ae1fcc 100644 --- a/sysdeps/mips/fpu_control.h +++ b/sysdeps/mips/fpu_control.h @@ -1,7 +1,7 @@ /* FPU control word bits. Mips version. Copyright (C) 1996, 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. - Contributed by Olaf Flebbe. + Contributed by Olaf Flebbe and Ralf Baechle. 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 @@ -21,74 +21,84 @@ #ifndef _FPU_CONTROL_H #define _FPU_CONTROL_H -/* FP control/status register bit assignments. +/* MIPS FPU floating point control register bits. * - * 31-25 24 23 22-18 17-12 11-7 6-2 1-0 - * (cause) (enables) (flags) - * | reserved | FS | C | reserved | E V Z O U I | V Z O U I | V Z O U I | RM + * 31-25 -> floating point conditions code bits 7-1. These bits are only + * available in MIPS IV. + * 24 -> flush denormalized results to zero instead of + * causing unimplemented operation exception. This bit is only + * available for MIPS III and newer. + * 23 -> Condition bit + * 22-18 -> reserved (read as 0, write with 0) + * 17 -> cause bit for unimplemented operation + * 16 -> cause bit for invalid exception + * 15 -> cause bit for division by zero exception + * 14 -> cause bit for overflow exception + * 13 -> cause bit for underflow exception + * 12 -> cause bit for inexact exception + * 11 -> enable exception for invalid exception + * 10 -> enable exception for division by zero exception + * 9 -> enable exception for overflow exception + * 8 -> enable exception for underflow exception + * 7 -> enable exception for inexact exception + * 6 -> flag invalid exception + * 5 -> flag division by zero exception + * 4 -> flag overflow exception + * 3 -> flag underflow exception + * 2 -> flag inexact exception + * 1-0 -> rounding control * - * FS: When set, denormalized results are flushed to zero instead of - * causing an unimplemented operation exception. - * C: Condition bit. - * E: Unimplemented Operation. - * V: Invalid Operation. - * Z: Division by zero. - * O: Overflow. - * U: Underflow. - * I: Inexact Operation - * RM: Rounding mode bits - * 00 (RN) - rounding to nearest - * 01 (RZ) - rounding toward zero - * 10 (RP) - rounding down (toward - infinity) - * 11 (RM) - rounding up (toward + infinity) * + * Rounding Control: + * 00 - rounding to nearest (RN) + * 01 - rounding toward zero (RZ) + * 01 - rounding (up) toward plus infinity (RP) + * 11 - rounding (down)toward minus infinity (RM) */ #include /* masking of interrupts */ -#define _FPU_MASK_IM (1 << 11) -#define _FPU_MASK_DM (1 << 24) /* XXX */ -#define _FPU_MASK_ZM (1 << 10) -#define _FPU_MASK_OM (1 << 9) -#define _FPU_MASK_UM (1 << 8) -#define _FPU_MASK_PM (1 << 7) - -/* precision control */ -#define _FPU_EXTENDED 0 -#define _FPU_DOUBLE 0 -#define _FPU_SINGLE 0 +#define _FPU_MASK_V 0x0800 /* Invalid operation */ +#define _FPU_MASK_Z 0x0400 /* Division by zero */ +#define _FPU_MASK_O 0x0200 /* Overflow */ +#define _FPU_MASK_U 0x0100 /* Underflow */ +#define _FPU_MASK_I 0x0080 /* Inexact operation */ + +/* flush denormalized numbers to zero */ +#define _FPU_FLUSH_TZ 0x1000000 /* rounding control */ -#define _FPU_RC_NEAREST 0x0 /* RECOMMENDED */ -#define _FPU_RC_DOWN 0x2 -#define _FPU_RC_UP 0x3 +#define _FPU_RC_NEAREST 0x0 /* RECOMMENDED */ #define _FPU_RC_ZERO 0x1 +#define _FPU_RC_UP 0x2 +#define _FPU_RC_DOWN 0x3 -#define _FPU_RESERVED 0xfe7c0000 /* Reserved bits */ +#define _FPU_RESERVED 0xfe3c0000 /* Reserved bits in cw */ /* The fdlibm code requires strict IEEE double precision arithmetic, and no interrupts for exceptions, rounding to nearest. */ -#define _FPU_DEFAULT 0x0 +#define _FPU_DEFAULT 0x00000600 /* IEEE: same as above, but exceptions */ -#define _FPU_IEEE (0x1f << 7) +#define _FPU_IEEE 0x00000F80 /* Type of the control word. */ -typedef unsigned int fpu_control_t; +typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__HI__))); /* Macros for accessing the hardware control word. */ -#define _FPU_GETCW(cw) __asm__ ("cfc1 %0, $31; nop; nop" : "=r" (cw)) -#define _FPU_SETCW(cw) __asm__ ("ctc1 %0, $31; nop; nop" : : "r" (cw)) +#define _FPU_GETCW(cw) __asm__ ("cfc1 %0,$31" : "=r" (cw) : ) +#define _FPU_SETCW(cw) __asm__ ("ctc1 %0,$31" : : "r" (cw)) /* Default control word set at startup. */ extern fpu_control_t __fpu_control; __BEGIN_DECLS -/* Called at startup. It can be used to manipulate fpu control register. */ +/* Called at startup. It can be used to manipulate the fpu control + register. */ extern void __setfpucw __P ((fpu_control_t)); __END_DECLS -- cgit v1.2.3