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/* Copyright (C) 2003,2004 Andi Kleen, SuSE Labs.
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libnuma is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; version
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libnuma is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should find a copy of v2.1 of the GNU Lesser General Public License
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somewhere on your Linux system; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include <sys/types.h>
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#include <asm/unistd.h>
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#define WEAK __attribute__((weak))
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#if !defined(__NR_mbind) || !defined(__NR_set_mempolicy) || \
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!defined(__NR_get_mempolicy)
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#if defined(__x86_64__)
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#define __NR_sched_setaffinity 203
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#define __NR_sched_getaffinity 204
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/* Official allocation */
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#define __NR_mbind 237
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#define __NR_set_mempolicy 238
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#define __NR_get_mempolicy 239
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#elif defined(__ia64__)
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#define __NR_sched_setaffinity 1231
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#define __NR_sched_getaffinity 1232
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/* Official allocation */
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#define __NR_mbind 1259
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#define __NR_get_mempolicy 1260
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#define __NR_set_mempolicy 1261
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#elif defined(__i386__)
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/* semi-official allocation (in -mm) */
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#define __NR_mbind 274
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#define __NR_get_mempolicy 275
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#define __NR_set_mempolicy 276
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#elif defined(__ppc64__) || defined(__ppc__)
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#define __NR_mbind 259
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#define __NR_get_mempolicy 260
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#define __NR_set_mempolicy 261
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#error "Add syscalls for your architecture or update kernel headers"
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#if defined(__x86_64__)
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/* 6 argument calls on x86-64 are often buggy in both glibc and
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asm/unistd.h. Add a working version here. */
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long syscall6(long call, long a, long b, long c, long d, long e, long f)
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asm volatile ("movq %[d],%%r10 ; movq %[e],%%r8 ; movq %[f],%%r9 ; syscall"
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: "0" (call),"D" (a),"S" (b), "d" (c),
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[d] "g" (d), [e] "g" (e), [f] "g" (f) :
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"r11","rcx","r8","r10","r9","memory" );
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#elif defined(__i386__)
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/* i386 has buggy syscall6 in glibc too. This is tricky to do
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in inline assembly because it clobbers so many registers. Do it
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" movl (0+5)*4(%esp),%eax\n"
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" movl (1+5)*4(%esp),%ebx\n"
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" movl (2+5)*4(%esp),%ecx\n"
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" movl (3+5)*4(%esp),%edx\n"
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" movl (4+5)*4(%esp),%esi\n"
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" movl (5+5)*4(%esp),%edi\n"
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" movl (6+5)*4(%esp),%ebp\n"
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extern long __syscall6(long n, long a, long b, long c, long d, long e, long f);
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long syscall6(long call, long a, long b, long c, long d, long e, long f)
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long res = __syscall6(call,a,b,c,d,e,f);
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#define syscall6 syscall
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long WEAK get_mempolicy(int *policy,
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unsigned long *nmask, unsigned long maxnode,
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void *addr, int flags)
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return syscall(__NR_get_mempolicy, policy, nmask, maxnode, addr, flags);
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long WEAK mbind(void *start, unsigned long len, int mode,
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unsigned long *nmask, unsigned long maxnode, unsigned flags)
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return syscall6(__NR_mbind, (long)start, len, mode, (long)nmask, maxnode, flags);
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long WEAK set_mempolicy(int mode, unsigned long *nmask,
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unsigned long maxnode)
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return syscall(__NR_set_mempolicy,mode,nmask,maxnode);
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/* SLES8 glibc doesn't define those */
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int numa_sched_setaffinity(pid_t pid, unsigned len, unsigned long *mask)
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return syscall(__NR_sched_setaffinity,pid,len,mask);
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int numa_sched_getaffinity(pid_t pid, unsigned len, unsigned long *mask)
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return syscall(__NR_sched_getaffinity,pid,len,mask);
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make_internal_alias(numa_sched_getaffinity);
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make_internal_alias(numa_sched_setaffinity);
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make_internal_alias(get_mempolicy);
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make_internal_alias(set_mempolicy);
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make_internal_alias(mbind);
added
removed
syscall.c
