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2004-05-06 Ulrich Drepper <drepper@redhat.com> * math/tgmath.h (fabs): Use __TGMATH_UNARY_REAL_IMAG_RET_REAL. (carg): Likewise. Patch by Lev S Bishop <lev.bishop@yale.edu>. * math/bug-tgmath1.c (main): Test fabs and carg as well. 2004-05-06 Richard Henderson <rth@redhat.com> * elf/elf.h (AT_L1I_CACHESHAPE, AT_L1D_CACHESHAPE, AT_L2_CACHESHAPE, AT_L3_CACHESHAPE): New. * sysdeps/unix/sysv/linux/alpha/Versions: Export __libc_alpha_cache_shape as a private symbol. * sysdeps/unix/sysv/linux/alpha/dl-sysdep.c: New file. * sysdeps/unix/sysv/linux/alpha/sysconf.c: New file. * sysdeps/alpha/divl.S: Use them. * sysdeps/alpha/divq.S: Likewise. * sysdeps/alpha/divqu.S: Likewise. * sysdeps/alpha/reml.S: Likewise. * sysdeps/alpha/remq.S: Likewise. * sysdeps/alpha/remqu.S: Likewise.
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| Original file line number | Diff line number | Diff line change |
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| /* Operating system support for run-time dynamic linker. Linux/PPC version. | ||
| Copyright (C) 1997, 1998, 2001, 2003 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 Lesser General Public | ||
| License as published by the Free Software Foundation; either | ||
| version 2.1 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 | ||
| Lesser General Public License for more details. | ||
| You should have received a copy of the GNU Lesser General Public | ||
| License along with the GNU C Library; if not, write to the Free | ||
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | ||
| 02111-1307 USA. */ | ||
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| #include "config.h" | ||
| #include "kernel-features.h" | ||
| #include <ldsodefs.h> | ||
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| extern long __libc_alpha_cache_shape[4]; | ||
| weak_extern (__libc_alpha_cache_shape); | ||
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| /* Scan the Aux Vector for the cache shape entries. */ | ||
| #define DL_PLATFORM_AUXV \ | ||
| case AT_L1I_CACHESHAPE: \ | ||
| { \ | ||
| long *cls = __libc_alpha_cache_shape; \ | ||
| if (cls != NULL) \ | ||
| cls[0] = av->a_un.a_val; \ | ||
| break; \ | ||
| } \ | ||
| case AT_L1D_CACHESHAPE: \ | ||
| { \ | ||
| long *cls = __libc_alpha_cache_shape; \ | ||
| if (cls != NULL) \ | ||
| cls[1] = av->a_un.a_val; \ | ||
| break; \ | ||
| } \ | ||
| case AT_L2_CACHESHAPE: \ | ||
| { \ | ||
| long *cls = __libc_alpha_cache_shape; \ | ||
| if (cls != NULL) \ | ||
| cls[2] = av->a_un.a_val; \ | ||
| break; \ | ||
| } \ | ||
| case AT_L3_CACHESHAPE: \ | ||
| { \ | ||
| long *cls = __libc_alpha_cache_shape; \ | ||
| if (cls != NULL) \ | ||
| cls[3] = av->a_un.a_val; \ | ||
| break; \ | ||
| } | ||
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| #include <sysdeps/unix/sysv/linux/dl-sysdep.c> |
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| /* Copyright (C) 2004 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 Lesser General Public | ||
| License as published by the Free Software Foundation; either | ||
| version 2.1 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 | ||
| Lesser General Public License for more details. | ||
| You should have received a copy of the GNU Lesser General Public | ||
| License along with the GNU C Library; if not, write to the Free | ||
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | ||
| 02111-1307 USA. */ | ||
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| #include <assert.h> | ||
| #include <stdbool.h> | ||
| #include <stdlib.h> | ||
| #include <unistd.h> | ||
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| static long int linux_sysconf (int name); | ||
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| #define CSHAPE(totalsize, linesize, assoc) \ | ||
| ((totalsize & ~0xff) | (linesize << 4) | assoc) | ||
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| long __libc_alpha_cache_shape[4] = { -2, -2, -2, -2 }; | ||
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| static inline unsigned long | ||
| implver (void) | ||
| { | ||
| unsigned long i; | ||
| #if __GNUC_PREREQ(3,3) | ||
| i = __builtin_alpha_implver (); | ||
| #else | ||
| asm ("implver %0" : "=r" (i)); | ||
| #endif | ||
| return i; | ||
| } | ||
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| static inline unsigned long | ||
| amask (unsigned long x) | ||
| { | ||
| unsigned long r; | ||
| #if __GNUC_PREREQ(3,3) | ||
| r = __builtin_alpha_amask (x); | ||
| #else | ||
| asm ("amask %1,%0" : "=r"(r) : "Ir"(x)); | ||
| #endif | ||
| return r; | ||
| } | ||
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| /* Get the value of the system variable NAME. */ | ||
| long int | ||
| __sysconf (int name) | ||
| { | ||
| long shape, index; | ||
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| /* We only handle the cache information here (for now). */ | ||
| if (name < _SC_LEVEL1_ICACHE_SIZE || name > _SC_LEVEL4_CACHE_LINESIZE) | ||
| return linux_sysconf (name); | ||
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| /* No Alpha has L4 caches. */ | ||
| if (name >= _SC_LEVEL4_CACHE_SIZE) | ||
| return -1; | ||
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| index = (name - _SC_LEVEL1_ICACHE_SIZE) / 3; | ||
| shape = __libc_alpha_cache_shape[index]; | ||
| if (shape == -2) | ||
| { | ||
| long shape_l1i, shape_l1d, shape_l2, shape_l3 = -1; | ||
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| /* ??? In the cases below for which we do not know L1 cache sizes, | ||
| we could do timings to measure sizes. But for the Bcache, it's | ||
| generally big enough that (without additional help) TLB effects | ||
| get in the way. We'd either need to be able to allocate large | ||
| pages or have the kernel do the timings from KSEG. Fortunately, | ||
| kernels beginning with 2.6.5 will pass us this info in auxvec. */ | ||
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| switch (implver()) | ||
| { | ||
| case 0: /* EV4 */ | ||
| /* EV4/LCA45 had 8k L1 caches; EV45 had 16k L1 caches. */ | ||
| /* EV4/EV45 had 128k to 16M 32-byte direct Bcache. LCA45 | ||
| had 64k to 8M 8-byte direct Bcache. Can't tell. */ | ||
| shape_l1i = shape_l1d = shape_l2 = CSHAPE (0, 5, 1); | ||
| break; | ||
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| case 1: /* EV5 */ | ||
| if (amask (1 << 8)) | ||
| { | ||
| /* MAX insns not present; either EV5 or EV56. */ | ||
| shape_l1i = shape_l1d = CSHAPE(8*1024, 5, 1); | ||
| /* ??? L2 and L3 *can* be configured as 32-byte line. */ | ||
| shape_l2 = CSHAPE (96*1024, 6, 3); | ||
| /* EV5/EV56 has 1M to 16M Bcache. */ | ||
| shape_l3 = CSHAPE (0, 6, 1); | ||
| } | ||
| else | ||
| { | ||
| /* MAX insns present; either PCA56 or PCA57. */ | ||
| /* PCA56 had 16k 64-byte cache; PCA57 had 32k Icache. */ | ||
| /* PCA56 had 8k 64-byte cache; PCA57 had 16k Dcache. */ | ||
| /* PCA5[67] had 512k to 4M Bcache. */ | ||
| shape_l1i = shape_l1d = shape_l2 = CSHAPE (0, 6, 1); | ||
| } | ||
| break; | ||
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| case 2: /* EV6 */ | ||
| shape_l1i = shape_l1d = CSHAPE(64*1024, 6, 2); | ||
| /* EV6/EV67/EV68* had 1M to 16M Bcache. */ | ||
| shape_l2 = CSHAPE (0, 6, 1); | ||
| break; | ||
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| case 3: /* EV7 */ | ||
| shape_l1i = shape_l1d = CSHAPE(64*1024, 6, 2); | ||
| shape_l2 = CSHAPE(7*1024*1024/4, 6, 7); | ||
| break; | ||
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| default: | ||
| shape_l1i = shape_l1d = shape_l2 = 0; | ||
| break; | ||
| } | ||
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| __libc_alpha_cache_shape[0] = shape_l1i; | ||
| __libc_alpha_cache_shape[1] = shape_l1d; | ||
| __libc_alpha_cache_shape[2] = shape_l2; | ||
| __libc_alpha_cache_shape[3] = shape_l3; | ||
| shape = __libc_alpha_cache_shape[index]; | ||
| } | ||
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| if (shape <= 0) | ||
| return shape; | ||
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| switch (name % 3) | ||
| { | ||
| case 0: /* total size */ | ||
| return shape & -0x100; | ||
| case 1: /* associativity */ | ||
| return shape & 0xf; | ||
| default: /* line size */ | ||
| return 1L << ((shape >> 4) & 0xf); | ||
| } | ||
| } | ||
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| /* Now the generic Linux version. */ | ||
| #undef __sysconf | ||
| #define __sysconf static linux_sysconf | ||
| #include "../sysconf.c" |