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Merge "<sched.h>: Add sched_getcpu() and cpu_set_t"

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This commit is contained in:
David 'Digit' Turner 2010-12-07 04:51:39 -08:00 committed by Android (Google) Code Review
commit 6a916acce2
22 changed files with 585 additions and 2 deletions
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4
libc/Android.mk
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@ -273,6 +273,10 @@ libc_common_src_files := \
bionic/md5.c \
bionic/pututline.c \
bionic/realpath.c \
bionic/sched_getaffinity.c \
bionic/sched_getcpu.c \
bionic/sched_cpualloc.c \
bionic/sched_cpucount.c \
bionic/semaphore.c \
bionic/sha1.c \
bionic/ssp.c \

3
libc/SYSCALLS.TXT
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@ -229,6 +229,9 @@ int sched_getparam(pid_t pid, struct sched_param *param) 155
int sched_get_priority_max(int policy) 159
int sched_get_priority_min(int policy) 160
int sched_rr_get_interval(pid_t pid, struct timespec *interval) 161
int sched_setaffinity(pid_t pid, size_t setsize, const cpu_set_t* set) 241
int __sched_getaffinity:sched_getaffinity(pid_t pid, size_t setsize, cpu_set_t* set) 242
int __getcpu:getcpu(unsigned *cpu, unsigned *node, void *unused) 345,318,318
# io priorities
int ioprio_set(int which, int who, int ioprio) 314,289,288

3
libc/arch-arm/syscalls.mk
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@ -153,6 +153,9 @@ syscall_src += arch-arm/syscalls/sched_getparam.S
syscall_src += arch-arm/syscalls/sched_get_priority_max.S
syscall_src += arch-arm/syscalls/sched_get_priority_min.S
syscall_src += arch-arm/syscalls/sched_rr_get_interval.S
syscall_src += arch-arm/syscalls/sched_setaffinity.S
syscall_src += arch-arm/syscalls/__sched_getaffinity.S
syscall_src += arch-arm/syscalls/__getcpu.S
syscall_src += arch-arm/syscalls/ioprio_set.S
syscall_src += arch-arm/syscalls/ioprio_get.S
syscall_src += arch-arm/syscalls/uname.S

19
libc/arch-arm/syscalls/__getcpu.S Normal file
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@ -0,0 +1,19 @@
/* autogenerated by gensyscalls.py */
#include <sys/linux-syscalls.h>
.text
.type __getcpu, #function
.globl __getcpu
.align 4
.fnstart
__getcpu:
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_getcpu
swi #0
ldmfd sp!, {r4, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
.fnend

19
libc/arch-arm/syscalls/__sched_getaffinity.S Normal file
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@ -0,0 +1,19 @@
/* autogenerated by gensyscalls.py */
#include <sys/linux-syscalls.h>
.text
.type __sched_getaffinity, #function
.globl __sched_getaffinity
.align 4
.fnstart
__sched_getaffinity:
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_sched_getaffinity
swi #0
ldmfd sp!, {r4, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
.fnend

19
libc/arch-arm/syscalls/sched_setaffinity.S Normal file
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@ -0,0 +1,19 @@
/* autogenerated by gensyscalls.py */
#include <sys/linux-syscalls.h>
.text
.type sched_setaffinity, #function
.globl sched_setaffinity
.align 4
.fnstart
sched_setaffinity:
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_sched_setaffinity
swi #0
ldmfd sp!, {r4, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
.fnend

3
libc/arch-sh/syscalls.mk
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@ -142,6 +142,9 @@ syscall_src += arch-sh/syscalls/sched_getparam.S
syscall_src += arch-sh/syscalls/sched_get_priority_max.S
syscall_src += arch-sh/syscalls/sched_get_priority_min.S
syscall_src += arch-sh/syscalls/sched_rr_get_interval.S
syscall_src += arch-sh/syscalls/sched_setaffinity.S
syscall_src += arch-sh/syscalls/__sched_getaffinity.S
syscall_src += arch-sh/syscalls/__getcpu.S
syscall_src += arch-sh/syscalls/ioprio_set.S
syscall_src += arch-sh/syscalls/ioprio_get.S
syscall_src += arch-sh/syscalls/uname.S

32
libc/arch-sh/syscalls/__getcpu.S Normal file
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@ -0,0 +1,32 @@
/* autogenerated by gensyscalls.py */
#include <sys/linux-syscalls.h>
.text
.type __getcpu, @function
.globl __getcpu
.align 4
__getcpu:
/* invoke trap */
mov.l 0f, r3 /* trap num */
trapa #(3 + 0x10)
/* check return value */
cmp/pz r0
bt __NR_getcpu_end
/* keep error number */
sts.l pr, @-r15
mov.l 1f, r1
jsr @r1
mov r0, r4
lds.l @r15+, pr
__NR_getcpu_end:
rts
nop
.align 2
0: .long __NR_getcpu
1: .long __set_syscall_errno

32
libc/arch-sh/syscalls/__sched_getaffinity.S Normal file
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@ -0,0 +1,32 @@
/* autogenerated by gensyscalls.py */
#include <sys/linux-syscalls.h>
.text
.type __sched_getaffinity, @function
.globl __sched_getaffinity
.align 4
__sched_getaffinity:
/* invoke trap */
mov.l 0f, r3 /* trap num */
trapa #(3 + 0x10)
/* check return value */
cmp/pz r0
bt __NR_sched_getaffinity_end
/* keep error number */
sts.l pr, @-r15
mov.l 1f, r1
jsr @r1
mov r0, r4
lds.l @r15+, pr
__NR_sched_getaffinity_end:
rts
nop
.align 2
0: .long __NR_sched_getaffinity
1: .long __set_syscall_errno

32
libc/arch-sh/syscalls/sched_setaffinity.S Normal file
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@ -0,0 +1,32 @@
/* autogenerated by gensyscalls.py */
#include <sys/linux-syscalls.h>
.text
.type sched_setaffinity, @function
.globl sched_setaffinity
.align 4
sched_setaffinity:
/* invoke trap */
mov.l 0f, r3 /* trap num */
trapa #(3 + 0x10)
/* check return value */
cmp/pz r0
bt __NR_sched_setaffinity_end
/* keep error number */
sts.l pr, @-r15
mov.l 1f, r1
jsr @r1
mov r0, r4
lds.l @r15+, pr
__NR_sched_setaffinity_end:
rts
nop
.align 2
0: .long __NR_sched_setaffinity
1: .long __set_syscall_errno

3
libc/arch-x86/syscalls.mk
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@ -156,6 +156,9 @@ syscall_src += arch-x86/syscalls/sched_getparam.S
syscall_src += arch-x86/syscalls/sched_get_priority_max.S
syscall_src += arch-x86/syscalls/sched_get_priority_min.S
syscall_src += arch-x86/syscalls/sched_rr_get_interval.S
syscall_src += arch-x86/syscalls/sched_setaffinity.S
syscall_src += arch-x86/syscalls/__sched_getaffinity.S
syscall_src += arch-x86/syscalls/__getcpu.S
syscall_src += arch-x86/syscalls/ioprio_set.S
syscall_src += arch-x86/syscalls/ioprio_get.S
syscall_src += arch-x86/syscalls/uname.S

29
libc/arch-x86/syscalls/__getcpu.S Normal file
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@ -0,0 +1,29 @@
/* autogenerated by gensyscalls.py */
#include <sys/linux-syscalls.h>
.text
.type __getcpu, @function
.globl __getcpu
.align 4
__getcpu:
pushl %ebx
pushl %ecx
pushl %edx
mov 16(%esp), %ebx
mov 20(%esp), %ecx
mov 24(%esp), %edx
movl $__NR_getcpu, %eax
int $0x80
cmpl $-129, %eax
jb 1f
negl %eax
pushl %eax
call __set_errno
addl $4, %esp
orl $-1, %eax
1:
popl %edx
popl %ecx
popl %ebx
ret

29
libc/arch-x86/syscalls/__sched_getaffinity.S Normal file
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@ -0,0 +1,29 @@
/* autogenerated by gensyscalls.py */
#include <sys/linux-syscalls.h>
.text
.type __sched_getaffinity, @function
.globl __sched_getaffinity
.align 4
__sched_getaffinity:
pushl %ebx
pushl %ecx
pushl %edx
mov 16(%esp), %ebx
mov 20(%esp), %ecx
mov 24(%esp), %edx
movl $__NR_sched_getaffinity, %eax
int $0x80
cmpl $-129, %eax
jb 1f
negl %eax
pushl %eax
call __set_errno
addl $4, %esp
orl $-1, %eax
1:
popl %edx
popl %ecx
popl %ebx
ret

29
libc/arch-x86/syscalls/sched_setaffinity.S Normal file
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@ -0,0 +1,29 @@
/* autogenerated by gensyscalls.py */
#include <sys/linux-syscalls.h>
.text
.type sched_setaffinity, @function
.globl sched_setaffinity
.align 4
sched_setaffinity:
pushl %ebx
pushl %ecx
pushl %edx
mov 16(%esp), %ebx
mov 20(%esp), %ecx
mov 24(%esp), %edx
movl $__NR_sched_setaffinity, %eax
int $0x80
cmpl $-129, %eax
jb 1f
negl %eax
pushl %eax
call __set_errno
addl $4, %esp
orl $-1, %eax
1:
popl %edx
popl %ecx
popl %ebx
ret

40
libc/bionic/sched_cpualloc.c Normal file
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@ -0,0 +1,40 @@
/*
* Copyright (C) 2010 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#define _GNU_SOURCE 1
#include <sched.h>
#include <stdlib.h>
cpu_set_t* __sched_cpualloc(size_t count)
{
return (cpu_set_t*) malloc(CPU_ALLOC_SIZE(count));
}
void __sched_cpufree(cpu_set_t* set)
{
free(set);
}

40
libc/bionic/sched_cpucount.c Normal file
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@ -0,0 +1,40 @@
/*
* Copyright (C) 2010 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#define _GNU_SOURCE 1
#include <sched.h>
int __sched_cpucount(size_t setsize, cpu_set_t* set)
{
int nn = 0, nn_max = setsize / sizeof(__CPU_BITTYPE);
int count = 0;
for ( ; nn < nn_max; nn++ )
count += __builtin_popcount(set->__bits[nn]);
return count;
}

41
libc/bionic/sched_getaffinity.c Normal file
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@ -0,0 +1,41 @@
/*
* Copyright (C) 2010 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#define _GNU_SOURCE 1
#include <sched.h>
int sched_getaffinity(pid_t pid, size_t setsize, cpu_set_t* set)
{
int ret = __sched_getaffinity(pid, setsize, set);
if (ret >= 0) {
if ((size_t)ret < setsize) {
memset((char*)set + ret, '\0', setsize - (size_t)ret);
}
ret = 0;
}
return ret;
}

40
libc/bionic/sched_getcpu.c Normal file
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@ -0,0 +1,40 @@
/*
* Copyright (C) 2010 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#define _GNU_SOURCE 1
#include <sched.h>
extern int __getcpu(unsigned *cpu, unsigned *node, void* unused);
int sched_getcpu(void)
{
unsigned cpu;
if (__getcpu(&cpu, NULL, NULL) < 0)
return 0;
return (int)cpu;
}

3
libc/docs/CHANGES.TXT
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@ -11,6 +11,9 @@ Differences between current and Android 2.3:
- <time.h>: Add timegm(), timelocal(), time2posix() and posix2time()
- <sched.h>: Add sched_getcpu(), sched_getaffinity(), sched_setaffinity(),
cpu_set_t and related macros (e.g. CPU_SETSIZE, CPU_ZERO, CPU_SET, ...)
-------------------------------------------------------------------------------
Differences between Android 2.3 and Android 2.2:

156
libc/include/sched.h
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@ -73,6 +73,162 @@ extern int sched_rr_get_interval(pid_t pid, struct timespec *tp);
extern int clone(int (*fn)(void *), void *child_stack, int flags, void* arg, ...);
#endif
/* Support for cpu thread affinity */
#ifdef _GNU_SOURCE
extern int sched_getcpu(void);
/* Our implementation supports up to 32 independent CPUs, which is also
* the maximum supported by the kernel at the moment. GLibc uses 1024 by
* default.
*
* If you want to use more than that, you should use CPU_ALLOC() / CPU_FREE()
* and the CPU_XXX_S() macro variants.
*/
#define CPU_SETSIZE 32
#define __CPU_BITTYPE unsigned long int /* mandated by the kernel */
#define __CPU_BITSHIFT 5 /* should be log2(BITTYPE) */
#define __CPU_BITS (1 << __CPU_BITSHIFT)
#define __CPU_ELT(x) ((x) >> __CPU_BITSHIFT)
#define __CPU_MASK(x) ((__CPU_BITTYPE)1 << ((x) & (__CPU_BITS-1)))
typedef struct {
__CPU_BITTYPE __bits[ CPU_SETSIZE / __CPU_BITS ];
} cpu_set_t;
extern int sched_setaffinity(pid_t pid, size_t setsize, const cpu_set_t* set);
extern int sched_getaffinity(pid_t pid, size_t setsize, cpu_set_t* set);
/* Provide optimized implementation for 32-bit cpu_set_t */
#if CPU_SETSIZE == __CPU_BITS
# define CPU_ZERO(set_) \
do{ \
(set_)->__bits[0] = 0; \
}while(0)
# define CPU_SET(cpu_,set_) \
do {\
size_t __cpu = (cpu_); \
if (__cpu < CPU_SETSIZE) \
(set_)->__bits[0] |= __CPU_MASK(__cpu); \
}while (0)
# define CPU_CLR(cpu_,set_) \
do {\
size_t __cpu = (cpu_); \
if (__cpu < CPU_SETSIZE) \
(set_)->__bits[0] &= ~__CPU_MASK(__cpu); \
}while (0)
# define CPU_ISSET(cpu_, set_) \
(__extension__({\
size_t __cpu = (cpu_); \
(cpu_ < CPU_SETSIZE) \
? ((set_)->__bits[0] & __CPU_MASK(__cpu)) != 0 \
: 0; \
}))
# define CPU_EQUAL(set1_, set2_) \
((set1_)->__bits[0] == (set2_)->__bits[0])
# define __CPU_OP(dst_, set1_, set2_, op_) \
do { \
(dst_)->__bits[0] = (set1_)->__bits[0] op_ (set2_)->__bits[0]; \
} while (0)
# define CPU_COUNT(set_) __builtin_popcountl((set_)->__bits[0])
#else /* CPU_SETSIZE != __CPU_BITS */
# define CPU_ZERO(set_) CPU_ZERO_S(sizeof(cpu_set_t), set_)
# define CPU_SET(cpu_,set_) CPU_SET_S(cpu_,sizeof(cpu_set_t),set_)
# define CPU_CLR(cpu_,set_) CPU_CLR_S(cpu_,sizeof(cpu_set_t),set_)
# define CPU_ISSET(cpu_,set_) CPU_ISSET_S(cpu_,sizeof(cpu_set_t),set_)
# define CPU_COUNT(set_) CPU_COUNT_S(sizeof(cpu_set_t),set_)
# define CPU_EQUAL(set1_,set2_) CPU_EQUAL_S(sizeof(cpu_set_t),set1_,set2_)
# define __CPU_OP(dst_,set1_,set2_,op_) __CPU_OP_S(sizeof(cpu_set_t),dst_,set1_,set2_,op_)
#endif /* CPU_SETSIZE != __CPU_BITS */
#define CPU_AND(set1_,set2_) __CPU_OP(set1_,set2_,&)
#define CPU_OR(set1_,set2_) __CPU_OP(set1_,set2_,|)
#define CPU_XOR(set1_,set2_) __CPU_OP(set1_,set2_,^)
/* Support for dynamically-allocated cpu_set_t */
#define CPU_ALLOC_SIZE(count) \
__CPU_ELT((count) + (__CPU_BITS-1))*sizeof(__CPU_BITTYPE)
#define CPU_ALLOC(count) __sched_cpualloc((count));
#define CPU_FREE(set) __sched_cpufree((set))
extern cpu_set_t* __sched_cpualloc(size_t count);
extern void __sched_cpufree(cpu_set_t* set);
#define CPU_ZERO_S(setsize_,set_) \
do { \
size_t __nn = 0; \
size_t __nn_max = (setsize_)/sizeof(__CPU_BITTYPE); \
for (; __nn < __nn_max; __nn++) \
(set_)->__bits[__nn] = 0; \
} while (0)
#define CPU_SET_S(cpu_,setsize_,set_) \
do { \
size_t __cpu = (cpu_); \
if (__cpu < 8*(setsize_)) \
(set_)->__bits[__CPU_ELT(__cpu)] |= __CPU_MASK(__cpu); \
} while (0)
#define CPU_CLR_S(cpu_,setsize_,set_) \
do { \
size_t __cpu = (cpu_); \
if (__cpu < 8*(setsize_)) \
(set_)->__bits[__CPU_ELT(__cpu)] &= ~__CPU_MASK(__cpu); \
} while (0)
#define CPU_ISSET_S(cpu_, setsize_, set_) \
(__extension__ ({ \
size_t __cpu = (cpu_); \
(__cpu < 8*(setsize_)) \
? ((set_)->__bits[__CPU_ELT(__cpu)] & __CPU_MASK(__cpu)) != 0 \
: 0; \
}))
#define CPU_EQUAL_S(setsize_, set1_, set2_) \
(__extension__ ({ \
__const __CPU_BITTYPE* __src1 = (set1_)->__bits; \
__const __CPU_BITTYPE* __src2 = (set2_)->__bits; \
size_t __nn = 0, __nn_max = (setsize_)/sizeof(__CPU_BITTYPE); \
for (; __nn < __nn_max; __nn++) { \
if (__src1[__nn] != __src2[__nn]) \
break; \
} \
__nn == __nn_max; \
}))
#define __CPU_OP_S(setsize_, dstset_, srcset1_, srcset2_, op) \
do { \
cpu_set_t* __dst = (dstset); \
const __CPU_BITTYPE* __src1 = (srcset1)->__bits; \
const __CPU_BITTYPE* __src2 = (srcset2)->__bits; \
size_t __nn = 0, __nn_max = (setsize_)/sizeof(__CPU_BITTYPE); \
for (; __nn < __nn_max; __nn++) \
(__dst)->__bits[__nn] = __src1[__nn] op __src2[__nn]; \
} while (0)
#define CPU_COUNT_S(setsize_, set_) \
__sched_cpucount((setsize_), (set_))
extern int __sched_cpucount(size_t setsize, cpu_set_t* set);
#endif /* _GNU_SOURCE */
__END_DECLS
#endif /* _SCHED_H_ */

5
libc/include/sys/linux-syscalls.h
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@ -120,6 +120,8 @@
#define __NR_sched_get_priority_max (__NR_SYSCALL_BASE + 159)
#define __NR_sched_get_priority_min (__NR_SYSCALL_BASE + 160)
#define __NR_sched_rr_get_interval (__NR_SYSCALL_BASE + 161)
#define __NR_sched_setaffinity (__NR_SYSCALL_BASE + 241)
#define __NR_sched_getaffinity (__NR_SYSCALL_BASE + 242)
#define __NR_uname (__NR_SYSCALL_BASE + 122)
#define __NR_wait4 (__NR_SYSCALL_BASE + 114)
#define __NR_umask (__NR_SYSCALL_BASE + 60)
@ -174,6 +176,7 @@
#define __NR_getsockopt (__NR_SYSCALL_BASE + 295)
#define __NR_sendmsg (__NR_SYSCALL_BASE + 296)
#define __NR_recvmsg (__NR_SYSCALL_BASE + 297)
#define __NR_getcpu (__NR_SYSCALL_BASE + 345)
#define __NR_ioprio_set (__NR_SYSCALL_BASE + 314)
#define __NR_ioprio_get (__NR_SYSCALL_BASE + 315)
#define __NR_epoll_create (__NR_SYSCALL_BASE + 250)
@ -218,6 +221,7 @@
#define __NR_timer_delete (__NR_SYSCALL_BASE + 263)
#define __NR_utimes (__NR_SYSCALL_BASE + 271)
#define __NR_socketcall (__NR_SYSCALL_BASE + 102)
#define __NR_getcpu (__NR_SYSCALL_BASE + 318)
#define __NR_ioprio_set (__NR_SYSCALL_BASE + 289)
#define __NR_ioprio_get (__NR_SYSCALL_BASE + 290)
#define __NR_epoll_create (__NR_SYSCALL_BASE + 254)
@ -276,6 +280,7 @@
#define __NR_socketcall (__NR_SYSCALL_BASE + 102)
#define __NR_socketcall (__NR_SYSCALL_BASE + 102)
#define __NR___socketcall (__NR_SYSCALL_BASE + 102)
#define __NR_getcpu (__NR_SYSCALL_BASE + 318)
#define __NR_ioprio_set (__NR_SYSCALL_BASE + 288)
#define __NR_ioprio_get (__NR_SYSCALL_BASE + 289)
#define __NR_epoll_create (__NR_SYSCALL_BASE + 254)

6
libc/include/sys/linux-unistd.h
View File

@ -53,7 +53,7 @@ int acct (const char* filepath);
ssize_t read (int, void*, size_t);
ssize_t write (int, const void*, size_t);
ssize_t __pread64 (int, void *, size_t, off_t, off_t);
ssize_t __pwrite64 (int, const void *, size_t, off_t, off_t);
ssize_t __pwrite64 (int, void *, size_t, off_t, off_t);
int __open (const char*, int, mode_t);
int __openat (int, const char*, int, mode_t);
int close (int);
@ -183,6 +183,9 @@ int sched_getparam (pid_t pid, struct sched_param *param);
int sched_get_priority_max (int policy);
int sched_get_priority_min (int policy);
int sched_rr_get_interval (pid_t pid, struct timespec *interval);
int sched_setaffinity (pid_t pid, size_t setsize, const cpu_set_t* set);
int __sched_getaffinity (pid_t pid, size_t setsize, cpu_set_t* set);
int __getcpu (unsigned *cpu, unsigned *node, void *unused);
int ioprio_set (int which, int who, int ioprio);
int ioprio_get (int which, int who);
int uname (struct utsname *);
@ -205,7 +208,6 @@ int poll (struct pollfd *, unsigned int, long);
int eventfd (unsigned int, int);
int __set_tls (void*);
int cacheflush (long start, long end, long flags);
int eventfd (int count, int flags);
#ifdef __cplusplus
}
#endif