diff options
27 files changed, 1234 insertions, 7 deletions
diff --git a/ChangeLog b/ChangeLog index f7cadf9286..f8ebfd845c 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,50 @@ +2000-05-05 Jes Sorensen <jes@linuxcare.com> + + * sysdeps/unix/sysv/linux/ia64/sysdep.h: New file. + * sysdeps/unix/sysv/linux/ia64/syscall.S: New file. + + * sysdeps/unix/sysv/linux/ia64/bits/types.h: New file. + * sysdeps/unix/sysv/linux/ia64/bits/endian.h: New file. + + * sysdeps/ia64/Implies: New file. + * sysdeps/ia64/Versions: New file. Declare _dl_symbol_address. + * sysdeps/ia64/Makefile: New file. + * sysdeps/ia64/gmp-mparam.h: New file, + + * sysdeps/ia64/elf/start.S: New file. + + * sysdeps/ia64/bits/fenv.h: New file. + +2000-05-05 David Mosberger-Tang <davidm@hpl.hp.com> + + * sysdeps/unix/sysv/linux/ia64/sysdep.S: New file. + +2000-04-26 Jes Sorensen <Jes.Sorensen@cern.ch> + + * sysdeps/unix/sysv/linux/ia64/bits/elfclass.h: New file. The + ia64 has 64 bit .hash entries just as the Alpha. + +2000-04-25 Jes Sorensen <Jes.Sorensen@cern.ch> + + * sysdeps/ia64/memprof.h: New file. Provide GETSP() macro. + +2000-04-17 Jes Sorensen <Jes.Sorensen@cern.ch> + + * sysdeps/ia64/fpu/fclrexcpt.c: New file. + * sysdeps/ia64/fpu/fedisblxcpt.c: New file. + * sysdeps/ia64/fpu/feenablxcpt.c: New file. + * sysdeps/ia64/fpu/fegetenv.c: New file. + * sysdeps/ia64/fpu/fegetexcept.c: New file. + * sysdeps/ia64/fpu/fegetround.c: New file. + * sysdeps/ia64/fpu/feholdexcpt.c: New file. + * sysdeps/ia64/fpu/fesetenv.c: New file. + * sysdeps/ia64/fpu/fesetround.c: New file. + * sysdeps/ia64/fpu/feupdateenv.c: New file. + * sysdeps/ia64/fpu/fgetexcptflg.c: New file. + * sysdeps/ia64/fpu/fraiseexcpt.c: New file. + * sysdeps/ia64/fpu/fsetexcptflg.c: New file. + * sysdeps/ia64/fpu/ftestexcept.c: New file. + 2000-05-05 Andreas Jaeger <aj@suse.de> * misc/tst-tsearch.c (main): Correct type for initstate argument. @@ -5,22 +52,21 @@ * sysdeps/generic/dl-procinfo.h (_DL_HWCAP_COUNT): New. (_dl_string_hwcap): New, does nothing. - * sysdeps/unix/sysv/linux/i386/dl-procinfo.h (_DL_HWCAP_COUNT): - New. + * sysdeps/unix/sysv/linux/i386/dl-procinfo.h (_DL_HWCAP_COUNT): New. (_dl_procinfo): Use _DL_HWCAP_COUNT instead of a constant. (_dl_string_hwcap): New function, converts from string to hwcap encoding. - * sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.h (_DL_HWCAP_COUNT): - New. + * sysdeps/unix/sysv/linux/sparc/sparc32/dl-procinfo.h + (_DL_HWCAP_COUNT): New. (_dl_procinfo): Use _DL_HWCAP_COUNT instead of a constant. (_dl_string_hwcap): New function, converts from string to hwcap encoding. - * sysdeps/unix/sysv/linux/sparc/sparc64/dl-procinfo.h (_DL_HWCAP_COUNT): - New. + * sysdeps/unix/sysv/linux/sparc/sparc64/dl-procinfo.h + (_DL_HWCAP_COUNT): New. (_dl_procinfo): Use _DL_HWCAP_COUNT instead of a constant. (_dl_string_hwcap): New function, converts from string to hwcap encoding. - + 2000-05-05 Ulrich Drepper <drepper@redhat.com> * elf/Makefile (distribute): Add dl-lookupcfg.h. diff --git a/sysdeps/ia64/Makefile b/sysdeps/ia64/Makefile new file mode 100644 index 0000000000..5f04a9dd66 --- /dev/null +++ b/sysdeps/ia64/Makefile @@ -0,0 +1,8 @@ +ifeq ($(subdir), csu) +CPPFLAGS-start.S = -D__ASSEMBLY__ +endif + +ifeq ($(subdir),elf) +dl-routines += dl-symaddr dl-fptr +rtld-routines += dl-symaddr dl-fptr +endif diff --git a/sysdeps/ia64/Versions b/sysdeps/ia64/Versions new file mode 100644 index 0000000000..e3323177f2 --- /dev/null +++ b/sysdeps/ia64/Versions @@ -0,0 +1,6 @@ +ld { + GLIBC_2.2 { + # ia64 specific functions in the dynamic linker, but used by libc.so. + _dl_symbol_address; + } +} diff --git a/sysdeps/ia64/bits/fenv.h b/sysdeps/ia64/bits/fenv.h new file mode 100644 index 0000000000..46e53ae08d --- /dev/null +++ b/sysdeps/ia64/bits/fenv.h @@ -0,0 +1,82 @@ +/* Copyright (C) 1999, 2000 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. */ + +#ifndef _FENV_H +# error "Never use <bits/fenv.h> directly; include <fenv.h> instead." +#endif + + +/* Define bits representing the exception. We use the bit positions of + the appropriate bits in the FPSR... (Tahoe EAS 2.4 5-4)*/ + +enum + { + FE_INEXACT = 1UL << 5, +#define FE_INEXACT FE_INEXACT + + FE_UNDERFLOW = 1UL << 4, +#define FE_UNDERFLOW FE_UNDERFLOW + + FE_OVERFLOW = 1UL << 3, +#define FE_OVERFLOW FE_OVERFLOW + + FE_DIVBYZERO = 1UL << 2, +#define FE_DIVBYZERO FE_DIVBYZERO + + FE_UNNORMAL = 1UL << 1, +#define FE_UNNORMAL FE_UNNORMAL + + FE_INVALID = 1UL << 0, +#define FE_INVALID FE_INVALID + + FE_ALL_EXCEPT = + (FE_INEXACT | FE_UNDERFLOW | FE_OVERFLOW | FE_DIVBYZERO | FE_UNNORMAL | FE_INVALID) +#define FE_ALL_EXCEPT FE_ALL_EXCEPT + }; + + +enum + { + FE_TOWARDZERO = 3, +#define FE_TOWARDZERO FE_TOWARDZERO + + FE_UPWARD = 2, +#define FE_UPWARD FE_UPWARD + + FE_DOWNWARD = 1, +#define FE_DOWNWARD FE_DOWNWARD + + FE_TONEAREST = 0, +#define FE_TONEAREST FE_TONEAREST + }; + + +/* Type representing exception flags. */ +typedef unsigned long fexcept_t; + +/* Type representing floating-point environment. */ +typedef unsigned long fenv_t; + +/* If the default argument is used we use this value. */ +#define FE_DFL_ENV ((fenv_t *) 0xc009804c0270033fUL) + +#ifdef __USE_GNU +/* Floating-point environment where only FE_UNNORMAL is masked since this + exception is not generally supported by glibc. */ +# define FE_NOMASK_ENV ((fenv_t *) 0xc009804c02700302UL) +#endif diff --git a/sysdeps/ia64/elf/start.S b/sysdeps/ia64/elf/start.S new file mode 100644 index 0000000000..424fae8471 --- /dev/null +++ b/sysdeps/ia64/elf/start.S @@ -0,0 +1,84 @@ +/* Copyright (C) 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Written by Jes Sorensen, <Jes.Sorensen@cern.ch>, April 1999. + + 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 <asm/unistd.h> +#include <asm/fpu.h> + +/* + * Arguments for __libc_start_main: + * out0: main + * out1: argc + * out2: argv + * out3: init + * out4: fini + * out5: rtld_fini + * out6: stack_end + */ + + .psr abi64 + .psr lsb + .lsb + + .text + + .global _start# + .proc _start# + +_start: + { .mlx + alloc r2 = ar.pfs,0,0,7,0 + movl r3 = FPSR_DEFAULT + } + { .mlx + adds out2 = 16, sp /* get address of argc value */ + movl gp = @gprel(0f) + ;; + } +0: { .mii + ld8 out1 = [out2], 8 /* load argc and move out2 to become argv */ + mov r9 = ip + ;; + sub gp = r9, gp /* back-compute gp value */ + ;; + } + { .mfi + mov ar.fpsr = r3 + addl out0 = @ltoff(@fptr(main#)), gp + } + { .mfi + addl out4 = @ltoff(@fptr(_fini#)), gp + addl out3 = @ltoff(@fptr(_init#)), gp + ;; + } + { .mmi + ld8 out0 = [out0] /* pointer to `main' function descriptor */ + ld8 out3 = [out3] /* pointer to `init' function descriptor */ + adds out6 = 16, sp /* highest non-environment stack address */ + } + { .mib + ld8 out4 = [out4] /* pointer to `fini' function descriptor */ + mov out5 = ret0 /* dynamic linker destructor */ + br.call.sptk.few rp = __libc_start_main# + } + { .mib + mov rp = r0 + br.ret.sptk.few rp /* break miserably if we ever return */ + ;; + } + .endp _start# diff --git a/sysdeps/ia64/fpu/fclrexcpt.c b/sysdeps/ia64/fpu/fclrexcpt.c new file mode 100644 index 0000000000..fbd93ce5da --- /dev/null +++ b/sysdeps/ia64/fpu/fclrexcpt.c @@ -0,0 +1,39 @@ +/* Clear given exceptions in current floating-point environment. + Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999 and + Jes Sorensen <Jes.Sorensen@cern.ch>, 2000 + + 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 <fenv.h> + +int +feclearexcept (int excepts) +{ + fenv_t fpsr; + + /* Get the current state. */ + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); + + /* Clear the relevant bits. */ + fpsr &= ~(((unsigned long int) ((excepts & FE_ALL_EXCEPT) << 13))); + /* Put the new state in effect. */ + __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr) : "memory"); + + /* success */ + return 0; +} diff --git a/sysdeps/ia64/fpu/fedisblxcpt.c b/sysdeps/ia64/fpu/fedisblxcpt.c new file mode 100644 index 0000000000..fceedc22be --- /dev/null +++ b/sysdeps/ia64/fpu/fedisblxcpt.c @@ -0,0 +1,37 @@ +/* Disable floating-point exceptions. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jes Sorensen <Jes.Sorensen@cern.ch>, 2000. + + 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 <fenv.h> + +int +fedisableexcept (int excepts) +{ + fenv_t old_fpsr; + fenv_t new_fpsr; + + /* Get the current fpsr. */ + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (old_fpsr)); + + new_fpsr = old_fpsr |= FE_ALL_EXCEPT; + + __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (new_fpsr) : "memory"); + + return (old_fpsr ^ FE_ALL_EXCEPT) & FE_ALL_EXCEPT; +} diff --git a/sysdeps/ia64/fpu/feenablxcpt.c b/sysdeps/ia64/fpu/feenablxcpt.c new file mode 100644 index 0000000000..2c54476681 --- /dev/null +++ b/sysdeps/ia64/fpu/feenablxcpt.c @@ -0,0 +1,38 @@ +/* Enable floating-point exceptions. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jes Sorensen <Jes.Sorensen@cern.ch>, 2000. + + 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 <fenv.h> + +int +feenableexcept (int excepts) +{ + fenv_t old_fpsr; + fenv_t new_fpsr; + + /* Get the current fpsr. */ + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r " (old_fpsr)); + + new_fpsr = ((old_fpsr & FE_ALL_EXCEPT) + | (old_fpsr & ((unsigned long int) excepts ^ FE_ALL_EXCEPT))); + + __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (new_fpsr) : "memory"); + + return (old_fpsr ^ FE_ALL_EXCEPT) & FE_ALL_EXCEPT; +} diff --git a/sysdeps/ia64/fpu/fegetenv.c b/sysdeps/ia64/fpu/fegetenv.c new file mode 100644 index 0000000000..4527bc506e --- /dev/null +++ b/sysdeps/ia64/fpu/fegetenv.c @@ -0,0 +1,29 @@ +/* Store current floating-point environment. + Copyright (C) 1997, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999. + + 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 <fenv.h> + +int +fegetenv (fenv_t *envp) +{ + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (*envp)); + + return 0; +} diff --git a/sysdeps/ia64/fpu/fegetexcept.c b/sysdeps/ia64/fpu/fegetexcept.c new file mode 100644 index 0000000000..828f7db570 --- /dev/null +++ b/sysdeps/ia64/fpu/fegetexcept.c @@ -0,0 +1,31 @@ +/* Get enabled floating-point exceptions. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jes Sorensen <Jes.Sorensen@cern.ch>, 2000. + + 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 <fenv.h> + +int +fegetexcept (void) +{ + fenv_t fpsr; + + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); + + return (fpsr ^ FE_ALL_EXCEPT) & FE_ALL_EXCEPT; +} diff --git a/sysdeps/ia64/fpu/fegetround.c b/sysdeps/ia64/fpu/fegetround.c new file mode 100644 index 0000000000..b30fec544f --- /dev/null +++ b/sysdeps/ia64/fpu/fegetround.c @@ -0,0 +1,31 @@ +/* Return current rounding direction. + Copyright (C) 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999. + + 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 <fenv.h> + +int +fegetround (void) +{ + fenv_t fpsr; + + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); + + return (fpsr >> 10) & 3; +} diff --git a/sysdeps/ia64/fpu/feholdexcpt.c b/sysdeps/ia64/fpu/feholdexcpt.c new file mode 100644 index 0000000000..3bab374000 --- /dev/null +++ b/sysdeps/ia64/fpu/feholdexcpt.c @@ -0,0 +1,33 @@ +/* Store current floating-point environment and clear exceptions. + Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999 + + 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 <fenv.h> + +int +feholdexcept (fenv_t *envp) +{ + /* Save the current state. */ + fegetenv (envp); + + /* set the trap disable bit */ + __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (*envp | FE_ALL_EXCEPT)); + + return 1; +} diff --git a/sysdeps/ia64/fpu/fesetenv.c b/sysdeps/ia64/fpu/fesetenv.c new file mode 100644 index 0000000000..b1209ca34e --- /dev/null +++ b/sysdeps/ia64/fpu/fesetenv.c @@ -0,0 +1,41 @@ +/* Install given floating-point environment. + Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jes Sorensen <Jes.Sorensen@cern.ch>, 2000 + + 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 <fenv.h> + +int +fesetenv (const fenv_t *envp) +{ + fenv_t env; + + /* + This stinks! + Magic encoding of default values: bit 62+63 set (which will never + happen for a user-space address) means it's not indirect. + */ + if (((unsigned long int) envp >> 62) == 0x03) + env = (unsigned long int) envp & 0x3fffffffffffffff; + else + env = *envp; + + __asm__ __volatile__ ("mov.m ar.fpsr=%0;;" :: "r" (env)); + + return 0; +} diff --git a/sysdeps/ia64/fpu/fesetround.c b/sysdeps/ia64/fpu/fesetround.c new file mode 100644 index 0000000000..66d7f89f39 --- /dev/null +++ b/sysdeps/ia64/fpu/fesetround.c @@ -0,0 +1,41 @@ +/* Set current rounding direction. + Copyright (C) 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999. + + 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 <fenv.h> + +int +fesetround (int round) +{ + unsigned long int fpsr; + + if (round & ~3) + return 0; + + /* Get the current state. */ + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); + + /* Set the relevant bits. */ + fpsr = (fpsr & ~(3UL << 10)) | ((unsigned long int) round << 10); + + /* Put the new state in effect. */ + __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr) : "memory"); + + return 1; +} diff --git a/sysdeps/ia64/fpu/feupdateenv.c b/sysdeps/ia64/fpu/feupdateenv.c new file mode 100644 index 0000000000..89e0b2e993 --- /dev/null +++ b/sysdeps/ia64/fpu/feupdateenv.c @@ -0,0 +1,42 @@ +/* Install given floating-point environment and raise exceptions. + Copyright (C) 1997, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999. + + 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 <fenv.h> + +int +feupdateenv (const fenv_t *envp) +{ + fenv_t fpsr; + + + /* Get the current exception state. */ + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); + + /* Install new environment. */ + fesetenv (envp); + + /* Raise the safed exception. Incidently for us the implementation + defined format of the values in objects of type fexcept_t is the + same as the ones specified using the FE_* constants. */ + feraiseexcept ((int) fpsr & FE_ALL_EXCEPT); + + /* Success. */ + return 0; +} diff --git a/sysdeps/ia64/fpu/fgetexcptflg.c b/sysdeps/ia64/fpu/fgetexcptflg.c new file mode 100644 index 0000000000..555530762d --- /dev/null +++ b/sysdeps/ia64/fpu/fgetexcptflg.c @@ -0,0 +1,35 @@ +/* Store current representation for exceptions. + Copyright (C) 1997, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999. + + 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 <fenv.h> + +int +fegetexceptflag (fexcept_t *flagp, int excepts) +{ + fenv_t fpsr; + + /* Get the current exceptions. */ + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); + + *flagp = (fpsr ^ FE_ALL_EXCEPT) & excepts & FE_ALL_EXCEPT; + + /* Success. */ + return 0; +} diff --git a/sysdeps/ia64/fpu/fraiseexcpt.c b/sysdeps/ia64/fpu/fraiseexcpt.c new file mode 100644 index 0000000000..78a881117e --- /dev/null +++ b/sysdeps/ia64/fpu/fraiseexcpt.c @@ -0,0 +1,94 @@ +/* Raise given exceptions. + Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jes Sorensen <Jes.Sorensen@cern.ch>, 2000. + + 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 <fenv.h> +#include <math.h> +#include <signal.h> +#include <unistd.h> +#include <asm/fpu.h> + +int +feraiseexcept (int excepts) +{ + fenv_t fpsr; + double tmp; + double dummy; + + /* Raise exceptions represented by EXPECTS. But we must raise only + one signal at a time. It is important the if the overflow/underflow + exception and the inexact exception are given at the same time, + the overflow/underflow exception precedes the inexact exception. */ + + /* We do these bits in assembly to be certain GCC doesn't optimize + away something important. */ + + /* First: invalid exception. */ + if (FE_INVALID & excepts) + { + /* One example of a invalid operation is 0 * Infinity. */ + tmp = 0; + __asm__ __volatile__ ("frcpa.s0 %0,p1=f0,f0" : "=f" (tmp) : : "p1" ); + } + + /* Next: division by zero. */ + if (FE_DIVBYZERO & excepts) + __asm__ __volatile__ ("frcpa.s0 %0,p1=f1,f0" : "=f" (tmp) : : "p1" ); + + /* XXX There seem to be no reliable way to generate + overflow/underflow exceptions without causing inexact exceptions + as well. */ + /* Next: overflow. */ + if (FE_OVERFLOW & excepts) + { + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); + fpsr |= (FE_OVERFLOW << 13); + __asm__ __volatile__ ("mov.m ar.fpsr=%0" : : "r" (fpsr)); + + if (!((unsigned long int) fpsr & FE_OVERFLOW)) + { + pid_t pid = getpid (); + kill (pid, SIGFPE); + } + } + + /* Next: underflow. */ + if (FE_UNDERFLOW & excepts) + { + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); + fpsr |= (FE_UNDERFLOW << 13); + __asm__ __volatile__ ("mov.m ar.fpsr=%0" : : "r" (fpsr)); + + if (!((unsigned long int) fpsr & FE_UNDERFLOW)) + { + pid_t pid = getpid(); + kill (pid, SIGFPE); + } + } + + /* Last: inexact. */ + if (FE_INEXACT & excepts) + { + dummy = DBL_MAX; + __asm__ __volatile__ ("fadd.d.s0 %0=%1,f1" : "=f" (dummy) : "0" (dummy)); + } + + /* Success. */ + return 0; +} diff --git a/sysdeps/ia64/fpu/fsetexcptflg.c b/sysdeps/ia64/fpu/fsetexcptflg.c new file mode 100644 index 0000000000..5e040416d4 --- /dev/null +++ b/sysdeps/ia64/fpu/fsetexcptflg.c @@ -0,0 +1,44 @@ +/* Set floating-point environment exception handling. + Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999. + + 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 <fenv.h> +#include <math.h> + +int +fesetexceptflag (const fexcept_t *flagp, int excepts) +{ + fenv_t fpsr; + + /* Get the current exception state. */ + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); + + /* Get the reverse bits so we can enable the exceptions flagged + rather than disable them. */ + excepts ^= FE_ALL_EXCEPT; + + /* Set all the bits that were called for. */ + fpsr = (fpsr & ~FE_ALL_EXCEPT) | (*flagp & excepts & FE_ALL_EXCEPT); + + /* And store it back. */ + __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr) : "memory"); + + /* Success. */ + return 0; +} diff --git a/sysdeps/ia64/fpu/ftestexcept.c b/sysdeps/ia64/fpu/ftestexcept.c new file mode 100644 index 0000000000..538bf2916e --- /dev/null +++ b/sysdeps/ia64/fpu/ftestexcept.c @@ -0,0 +1,32 @@ +/* Test exception in current environment. + Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999. + + 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 <fenv.h> + +int +fetestexcept (int excepts) +{ + fenv_t fpsr; + + /* Get current exceptions. */ + __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); + + return (fpsr >> 13) & excepts & FE_ALL_EXCEPT; +} diff --git a/sysdeps/ia64/gmp-mparam.h b/sysdeps/ia64/gmp-mparam.h new file mode 100644 index 0000000000..d52b870740 --- /dev/null +++ b/sysdeps/ia64/gmp-mparam.h @@ -0,0 +1,27 @@ +/* gmp-mparam.h -- Compiler/machine parameter header file. + +Copyright (C) 2000 Free Software Foundation, Inc. + +This file is part of the GNU MP Library. + +The GNU MP 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 MP 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 MP 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 BITS_PER_MP_LIMB 64 +#define BYTES_PER_MP_LIMB 8 +#define BITS_PER_LONGINT 64 +#define BITS_PER_INT 32 +#define BITS_PER_SHORTINT 16 +#define BITS_PER_CHAR 8 diff --git a/sysdeps/ia64/memprof.h b/sysdeps/ia64/memprof.h new file mode 100644 index 0000000000..e447a735e0 --- /dev/null +++ b/sysdeps/ia64/memprof.h @@ -0,0 +1,22 @@ +/* Copyright (C) 2000 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. */ + + +#define GETSP() ({ register uintptr_t stack_ptr asm ("%r12"); stack_ptr; }) + +#include <sysdeps/generic/memprof.h> diff --git a/sysdeps/unix/sysv/linux/ia64/bits/elfclass.h b/sysdeps/unix/sysv/linux/ia64/bits/elfclass.h new file mode 100644 index 0000000000..de0c694e0c --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/bits/elfclass.h @@ -0,0 +1,14 @@ +/* This file specifies the native word size of the machine, which indicates + the ELF file class used for executables and shared objects on this + machine. */ + +#ifndef _LINK_H +# error "Never use <bits/elfclass.h> directly; include <link.h> instead." +#endif + +#include <bits/wordsize.h> + +#define __ELF_NATIVE_CLASS __WORDSIZE + +/* Linux/ia64, like the Alpha has the .hash section with 64 bit entries. */ +typedef uint64_t Elf_Symndx; diff --git a/sysdeps/unix/sysv/linux/ia64/bits/endian.h b/sysdeps/unix/sysv/linux/ia64/bits/endian.h new file mode 100644 index 0000000000..98a5e23991 --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/bits/endian.h @@ -0,0 +1,7 @@ +/* Linux/ia64 is little-endian. */ + +#ifndef _ENDIAN_H +# error "Never use <bits/endian.h> directly; include <endian.h> instead." +#endif + +#define __BYTE_ORDER __LITTLE_ENDIAN diff --git a/sysdeps/unix/sysv/linux/ia64/bits/types.h b/sysdeps/unix/sysv/linux/ia64/bits/types.h new file mode 100644 index 0000000000..a94c8a99ae --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/bits/types.h @@ -0,0 +1,136 @@ +/* Copyright (C) 1999, 2000 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. */ + +/* + * Never include this file directly; use <sys/types.h> instead. + */ + +#ifndef _BITS_TYPES_H +#define _BITS_TYPES_H 1 + +#include <features.h> + +#define __need_size_t +#include <stddef.h> + +/* Convenience types. */ +typedef unsigned char __u_char; +typedef unsigned short int __u_short; +typedef unsigned int __u_int; +typedef unsigned long int __u_long; +typedef unsigned long int __u_quad_t; +typedef long int __quad_t; +typedef signed char __int8_t; +typedef unsigned char __uint8_t; +typedef signed short int __int16_t; +typedef unsigned short int __uint16_t; +typedef signed int __int32_t; +typedef unsigned int __uint32_t; +typedef signed long int __int64_t; +typedef unsigned long int __uint64_t; +typedef __quad_t *__qaddr_t; + +typedef __uint64_t __dev_t; /* Type of device numbers. */ +typedef __uint32_t __uid_t; /* Type of user identifications. */ +typedef __uint32_t __gid_t; /* Type of group identifications. */ +typedef __uint32_t __ino_t; /* Type of file serial numbers. */ +typedef __uint64_t __ino64_t; /* "" (LFS) */ +typedef __uint32_t __mode_t; /* Type of file attribute bitmasks. */ +typedef __uint32_t __nlink_t; /* Type of file link counts. */ +typedef __int64_t __off_t; /* Type of file sizes and offsets. */ +typedef __int64_t __off64_t; /* "" (LFS) */ +typedef __int64_t __loff_t; /* Type of file sizes and offsets. */ +typedef __int32_t __pid_t; /* Type of process identifications. */ +typedef __int64_t __ssize_t; /* Type of a byte count, or error. */ +typedef __uint64_t __rlim_t; /* Type of resource counts. */ +typedef __uint64_t __rlim64_t; /* "" (LFS) */ +typedef __int32_t __blkcnt_t; /* Type to count nr disk blocks. */ +typedef __int64_t __blkcnt64_t; /* "" (LFS) */ +typedef __uint32_t __fsblkcnt_t; /* Type to count file system blocks. */ +typedef __uint64_t __fsblkcnt64_t; /* "" (LFS) */ +typedef __uint32_t __fsfilcnt_t; /* Type to count file system inodes. */ +typedef __uint64_t __fsfilcnt64_t; /* "" (LFS) */ +typedef __uint32_t __id_t; /* General type for IDs. */ + +typedef struct + { + int __val[2]; + } __fsid_t; /* Type of file system IDs. */ + +/* Everythin' else. */ +typedef int __daddr_t; /* Type of a disk address. */ +typedef char *__caddr_t; /* Type of a core address. */ +typedef long int __time_t; +typedef unsigned int __useconds_t; +typedef long int __suseconds_t; +typedef long int __swblk_t; /* Type of a swap block maybe? */ +typedef long int __clock_t; +typedef int __key_t; /* Type of a SYSV IPC key. */ + +/* Used in `struct shmid_ds'. */ +typedef int __ipc_pid_t; + +/* type to represent block size. */ +typedef long int __blksize_t; + +/* One element in the file descriptor mask array. */ +typedef unsigned long int __fd_mask; + +/* Due to incaution, we may have gotten these from a kernel header file. */ +#undef __FD_SETSIZE +#undef __NFDBITS +#undef __FDMASK + +/* Number of descriptors that can fit in an `fd_set'. */ +#define __FD_SETSIZE 1024 + +/* It's easier to assume 8-bit bytes than to get CHAR_BIT. */ +#define __NFDBITS (8 * sizeof (__fd_mask)) +#define __FDELT(d) ((d) / __NFDBITS) +#define __FDMASK(d) ((__fd_mask) 1 << ((d) % __NFDBITS)) + +/* fd_set for select and pselect. */ +typedef struct + { + /* XPG4.2 requires this member name. Otherwise avoid the name + from the user namespace. */ +#ifdef __USE_XOPEN + __fd_mask fds_bits[__FD_SETSIZE / __NFDBITS]; +# define __FDS_BITS(set) ((set)->fds_bits) +#else + __fd_mask __fds_bits[__FD_SETSIZE / __NFDBITS]; +# define __FDS_BITS(set) ((set)->__fds_bits) +#endif + } __fd_set; + +/* Used in XTI. */ +typedef int __t_scalar_t; +typedef unsigned int __t_uscalar_t; + +/* Duplicates info from stdint.h but this is used in unistd.h. */ +typedef long int __intptr_t; + +/* Duplicate info from sys/socket.h. */ +typedef unsigned int __socklen_t; + +/* Now add the thread types. */ +#ifdef __USE_UNIX98 +# include <bits/pthreadtypes.h> +#endif + +#endif /* bits/types.h */ diff --git a/sysdeps/unix/sysv/linux/ia64/syscall.S b/sysdeps/unix/sysv/linux/ia64/syscall.S new file mode 100644 index 0000000000..25f81cd61a --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/syscall.S @@ -0,0 +1,45 @@ +/* Copyright (C) 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jes Sorensen (Jes.Sorensen@cern.ch) + + 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 <sysdep.h> + +/* + * This is ugly as hell, but we need to take out the syscall number and + * rotate the input arguments one register before performing the syscall + */ +ENTRY(__syscall) + mov r15=r32 /* syscall number */ + ;; + mov r32=r33 + ;; + mov r33=r34 + ;; + mov r34=r35 + ;; + mov r35=r36 + ;; + mov r36=r37 + break __BREAK_SYSCALL + cmp.ne p6,p0=-1,r10 /* r10 = -1 on error */ + ;; +(p6) ret +(p7) br.cond.spnt.few __syscall_error +PSEUDO_END(__syscall) + +weak_alias (__syscall, syscall) diff --git a/sysdeps/unix/sysv/linux/ia64/sysdep.S b/sysdeps/unix/sysv/linux/ia64/sysdep.S new file mode 100644 index 0000000000..dcf9803044 --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/sysdep.S @@ -0,0 +1,84 @@ +/* Copyright (C) 1999, 2000 Hewlett-Packard Co. + Contributed by David Mosberger-Tang <davidm@hpl.hp.com>. + + 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 <sysdep.h> +#include <features.h> + + .psr abi64 + .psr lsb + .lsb + + .global errno + .common errno,4,4 + .type errno, @object + .size errno, 4 + + .global __errno +__errno = errno + + .global _errno +_errno = errno + + .text + + .align 8 + + .global __syscall_error + .proc __syscall_error +__syscall_error: +#ifdef _LIBC_REENTRANT + alloc r35=ar.pfs, 0, 4, 0, 0 + mov r32=b0 + mov r33=r8 + mov r34=r1 + ;; + br.call.sptk.many b0 = __errno_location# +.Lret0: /* force new bundle */ + st4 [r8]=r33 + mov r1=r34 + mov b0=r32 + mov r8=-1 + mov ar.pfs=r35 +#else /* _LIBC_REENTRANT */ + /* + * Note that the gp has to be set properly for this to work. + * As long as all syscalls are in the same load unit + * (executable or shared library) as this routine, we should + * be fine. Otherwise, we would have to first load the global + * pointer register from __gp. + */ + addl r2=@ltoff(errno),gp + ;; + ld8 r2=[r2] + mov r3=r8 + mov r8=-1 + ;; + st4 [r2]=r3 +#endif /* _LIBC_REENTRANT */ + ret // ret is #define'd in syscall.h! + .endp __syscall_error + + + .global __ia64_syscall + .proc __ia64_syscall +__ia64_syscall: + break __BREAK_SYSCALL + cmp.eq p6,p0=-1,r10 +(p6) br.cond.spnt.few __syscall_error + ret + .endp __ia64_syscall diff --git a/sysdeps/unix/sysv/linux/ia64/sysdep.h b/sysdeps/unix/sysv/linux/ia64/sysdep.h new file mode 100644 index 0000000000..6901d5e38e --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/sysdep.h @@ -0,0 +1,99 @@ +/* Copyright (C) 1999, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Written by Jes Sorensen, <Jes.Sorensen@cern.ch>, April 1999. + Based on code originally written by David Mosberger-Tang + + 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 <sysdeps/unix/sysdep.h> + +/* For Linux we can use the system call table in the header file + /usr/include/asm/unistd.h + of the kernel. But these symbols do not follow the SYS_* syntax + so we have to redefine the `SYS_ify' macro here. */ +#undef SYS_ify +#ifdef __STDC__ +# define SYS_ify(syscall_name) __NR_##syscall_name +#else +# define SYS_ify(syscall_name) __NR_/**/syscall_name +#endif + +#ifdef __ASSEMBLER__ + +/* Linux uses a negative return value to indicate syscall errors, unlike + most Unices, which use the condition codes' carry flag. + + Since version 2.1 the return value of a system call might be negative + even if the call succeeded. E.g., the `lseek' system call might return + a large offset. Therefore we must not anymore test for < 0, but test + for a real error by making sure the value in %d0 is a real error + number. Linus said he will make sure the no syscall returns a value + in -1 .. -4095 as a valid result so we can savely test with -4095. */ + +/* We don't want the label for the error handler to be visible in the symbol + table when we define it here. */ +#define SYSCALL_ERROR_LABEL __syscall_error + +#ifdef PROF +#error "define CALL_MCOUNT" +#else +#define CALL_MCOUNT +#endif + + +#undef PSEUDO +#define PSEUDO(name, syscall_name, args) \ + ENTRY(name) \ + DO_CALL (SYS_ify(syscall_name)); \ + cmp.eq p6,p0=-1,r10;; \ +(p6) br.cond.spnt.few __syscall_error; + +#define ENTRY(name) \ + .psr abi64; \ + .psr lsb; \ + .lsb; \ + .proc C_SYMBOL_NAME(name); \ + .text; \ + .align 32; \ + .proc C_SYMBOL_NAME(name); \ + .global C_SYMBOL_NAME(name); \ + C_LABEL(name) \ + CALL_MCOUNT + +#define DO_CALL(num) \ + mov r15=num; \ + break __BREAK_SYSCALL; + +#undef PSEUDO_END +#define PSEUDO_END(name) .endp C_SYMBOL_NAME(name); + +#undef END +#define END(name) \ + .size C_SYMBOL_NAME(name), . - C_SYMBOL_NAME(name) ; \ + .endp C_SYMBOL_NAME(name) + +#define ret br.ret.sptk.few b0 + +#else /* not __ASSEMBLER__ */ + +/* Define a macro which expands into the inline wrapper code for a system + call. */ +#if 0 +#undef INLINE_SYSCALL +#define INLINE_SYSCALL(name, nr, args...) __##name (args) +#endif + +#endif /* not __ASSEMBLER__ */ |