diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/generic/fd_to_filename.h | 26 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc32/sparcv9/Makefile | 4 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc32/sparcv9/hp-timing.c | 24 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc32/sparcv9/hp-timing.h | 89 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc64/Makefile | 4 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc64/hp-timing.c | 24 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc64/hp-timing.h | 84 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/fd_to_filename.h | 46 |
8 files changed, 301 insertions, 0 deletions
diff --git a/sysdeps/generic/fd_to_filename.h b/sysdeps/generic/fd_to_filename.h new file mode 100644 index 0000000000..f055463d67 --- /dev/null +++ b/sysdeps/generic/fd_to_filename.h @@ -0,0 +1,26 @@ +/* Query filename corresponding to an open FD. Generic version. + Copyright (C) 2001 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. */ + +/* In general there is no generic way to query filename for an open + file descriptor. */ +static inline const char * +fd_to_filename (int fd) +{ + return NULL; +} diff --git a/sysdeps/sparc/sparc32/sparcv9/Makefile b/sysdeps/sparc/sparc32/sparcv9/Makefile index 2844d8b514..421f273dca 100644 --- a/sysdeps/sparc/sparc32/sparcv9/Makefile +++ b/sysdeps/sparc/sparc32/sparcv9/Makefile @@ -1,5 +1,9 @@ sysdep-CFLAGS += -mcpu=v8 -mtune=ultrasparc -Wa,-Av9a +ifeq ($(subdir),csu) +sysdep_routines += hp-timing +endif + ifeq ($(subst gnulib,string,$(subdir)),string) ASFLAGS-.o += -Wa,-Av9a ASFLAGS-.os += -Wa,-Av9a diff --git a/sysdeps/sparc/sparc32/sparcv9/hp-timing.c b/sysdeps/sparc/sparc32/sparcv9/hp-timing.c new file mode 100644 index 0000000000..772893e08b --- /dev/null +++ b/sysdeps/sparc/sparc32/sparcv9/hp-timing.c @@ -0,0 +1,24 @@ +/* Support for high precision, low overhead timing functions. sparcv9 version. + Copyright (C) 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David S. Miller <davem@redhat.com>, 2001. + + 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 <hp-timing.h> + +/* We have to define the variable for the overhead. */ +hp_timing_t __libc_hp_timing_overhead; diff --git a/sysdeps/sparc/sparc32/sparcv9/hp-timing.h b/sysdeps/sparc/sparc32/sparcv9/hp-timing.h new file mode 100644 index 0000000000..98acae9139 --- /dev/null +++ b/sysdeps/sparc/sparc32/sparcv9/hp-timing.h @@ -0,0 +1,89 @@ +/* High precision, low overhead timing functions. sparcv9 version. + Copyright (C) 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David S. Miller <davem@redhat.com>, 2001. + + 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 _HP_TIMING_H +#define _HP_TIMING_H 1 + +#include <string.h> +#include <sys/param.h> +#include <stdio-common/_itoa.h> + +#define HP_TIMING_AVAIL (1) +#define HP_TIMING_INLINE (1) + +typedef unsigned long long int hp_timing_t; + +extern hp_timing_t __libc_hp_timing_overhead; + +#define HP_TIMING_ZERO(Var) (Var) = (0) + +#define HP_TIMING_NOW(Var) \ + __asm__ __volatile__ ("rd %%tick, %L0\n\t" \ + "srlx %L0, 32, %H0" \ + : "=r" (Var)) + +#define HP_TIMING_DIFF_INIT() \ + do { \ + int __cnt = 5; \ + __libc_hp_timing_overhead = ~0ull; \ + do \ + { \ + hp_timing_t __t1, __t2; \ + HP_TIMING_NOW (__t1); \ + HP_TIMING_NOW (__t2); \ + if (__t2 - __t1 < __libc_hp_timing_overhead) \ + __libc_hp_timing_overhead = __t2 - __t1; \ + } \ + while (--__cnt > 0); \ + } while (0) + +#define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start)) + +#define HP_TIMING_ACCUM(Sum, Diff) \ +do { \ + hp_timing_t __diff = (Diff) - __libc_hp_timing_overhead; \ + __asm__ __volatile__("srl %L0, 0, %%g1\n\t" \ + "sllx %H0, 32, %%g7\n\t" \ + "or %%g1, %%g7, %%g1\n\t" \ + "1: ldx [%1], %%g5\n\t" \ + "add %%g5, %%g1, %%g7\n\t" \ + "casx [%1], %%g5, %%g7\n\t" \ + "cmp %%g5, %%g7\n\t" \ + "bne,pn %%xcc, 1b\n\t" \ + " nop" \ + : /* no outputs */ \ + : "r" (__diff), "r" (&(Sum)) \ + : "memory", "g1", "g5", "g7"); \ +} while(0) + +#define HP_TIMING_ACCUM_NT(Sum, Diff) (Sum) += (Diff) + +#define HP_TIMING_PRINT(Buf, Len, Val) \ + do { \ + char __buf[20]; \ + char *__cp = _itoa (Val, __buf + sizeof (__buf), 10, 0); \ + int __len = (Len); \ + char *__dest = (Buf); \ + while (__len-- > 0 && __cp < __buf + sizeof (__buf)) \ + *__dest++ = *__cp++; \ + memcpy (__dest, " clock cycles", MIN (__len, sizeof (" clock cycles"))); \ + } while (0) + +#endif /* hp-timing.h */ diff --git a/sysdeps/sparc/sparc64/Makefile b/sysdeps/sparc/sparc64/Makefile index 312e59ea21..d12f478f95 100644 --- a/sysdeps/sparc/sparc64/Makefile +++ b/sysdeps/sparc/sparc64/Makefile @@ -1,2 +1,6 @@ # The Sparc `long double' is a distinct type we support. long-double-fcts = yes + +ifeq ($(subdir),csu) +sysdep_routines += hp-timing +endif diff --git a/sysdeps/sparc/sparc64/hp-timing.c b/sysdeps/sparc/sparc64/hp-timing.c new file mode 100644 index 0000000000..862429fd0d --- /dev/null +++ b/sysdeps/sparc/sparc64/hp-timing.c @@ -0,0 +1,24 @@ +/* Support for high precision, low overhead timing functions. sparc64 version. + Copyright (C) 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David S. Miller <davem@redhat.com>, 2001. + + 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 <hp-timing.h> + +/* We have to define the variable for the overhead. */ +hp_timing_t __libc_hp_timing_overhead; diff --git a/sysdeps/sparc/sparc64/hp-timing.h b/sysdeps/sparc/sparc64/hp-timing.h new file mode 100644 index 0000000000..761a416c0c --- /dev/null +++ b/sysdeps/sparc/sparc64/hp-timing.h @@ -0,0 +1,84 @@ +/* High precision, low overhead timing functions. sparc64 version. + Copyright (C) 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David S. Miller <davem@redhat.com>, 2001. + + 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 _HP_TIMING_H +#define _HP_TIMING_H 1 + +#include <string.h> +#include <sys/param.h> +#include <stdio-common/_itoa.h> + +#define HP_TIMING_AVAIL (1) +#define HP_TIMING_INLINE (1) + +typedef unsigned long int hp_timing_t; + +extern hp_timing_t __libc_hp_timing_overhead; + +#define HP_TIMING_ZERO(Var) (Var) = (0) + +#define HP_TIMING_NOW(Var) __asm__ __volatile__ ("rd %%tick, %0" : "=r" (Var)) + +#define HP_TIMING_DIFF_INIT() \ + do { \ + int __cnt = 5; \ + __libc_hp_timing_overhead = ~0ull; \ + do \ + { \ + hp_timing_t __t1, __t2; \ + HP_TIMING_NOW (__t1); \ + HP_TIMING_NOW (__t2); \ + if (__t2 - __t1 < __libc_hp_timing_overhead) \ + __libc_hp_timing_overhead = __t2 - __t1; \ + } \ + while (--__cnt > 0); \ + } while (0) + +#define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start)) + +#define HP_TIMING_ACCUM(Sum, Diff) \ +do { \ + hp_timing_t __diff = (Diff) - __libc_hp_timing_overhead; \ + hp_timing_t tmp1, tmp2; \ + __asm__ __volatile__("1: ldx [%3], %0\n\t" \ + "add %0, %2, %1\n\t" \ + "casx [%3], %0, %1\n\t" \ + "cmp %0, %1\n\t" \ + "bne,pn %%xcc, 1b\n\t" \ + " nop" \ + : "=&r" (tmp1), "=&r" (tmp2) \ + : "r" (__diff), "r" (&(Sum)) \ + : "memory", "g1", "g5", "g7"); \ +} while(0) + +#define HP_TIMING_ACCUM_NT(Sum, Diff) (Sum) += (Diff) + +#define HP_TIMING_PRINT(Buf, Len, Val) \ + do { \ + char __buf[20]; \ + char *__cp = _itoa (Val, __buf + sizeof (__buf), 10, 0); \ + int __len = (Len); \ + char *__dest = (Buf); \ + while (__len-- > 0 && __cp < __buf + sizeof (__buf)) \ + *__dest++ = *__cp++; \ + memcpy (__dest, " clock cycles", MIN (__len, sizeof (" clock cycles"))); \ + } while (0) + +#endif /* hp-timing.h */ diff --git a/sysdeps/unix/sysv/linux/fd_to_filename.h b/sysdeps/unix/sysv/linux/fd_to_filename.h new file mode 100644 index 0000000000..94f55b6c46 --- /dev/null +++ b/sysdeps/unix/sysv/linux/fd_to_filename.h @@ -0,0 +1,46 @@ +/* Query filename corresponding to an open FD. Linux version. + Copyright (C) 2001 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 <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <stdio-common/_itoa.h> + +static inline const char * +fd_to_filename (int fd) +{ + char *ret = malloc (30); + + if (ret != NULL) + { + struct stat64 st; + + *_fitoa_word (fd, __stpcpy (ret, "/proc/self/fd/"), 10, 0) = '\0'; + + /* We must make sure the file exists. */ + if (__lxstat64 (_STAT_VER, ret, &st) < 0) + { + /* /proc is not mounted or something else happened. Don't + return the file name. */ + free (ret); + ret = NULL; + } + } + return ret; +} |