mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-22 02:37:15 +00:00
Port the NetBSD KCSAN runtime to FreeBSD.
Update the NetBSD Kernel Concurrency Sanitizer (KCSAN) runtime to work in the FreeBSD kernel. It is a useful tool for finding data races between threads executing on different CPUs. This can be enabled by enabling KCSAN in the kernel config, or by using the GENERIC-KCSAN amd64 kernel. It works on amd64 and arm64, however the later needs a compiler change to allow -fsanitize=thread that KCSAN uses. Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D22315
This commit is contained in:
Andrew Turner
parent
489912da7b
commit
849aef496d
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=354942
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@ -146,6 +146,10 @@ DEFINE_IFUNC(, int, casueword, (volatile u_long *, u_long, u_long *, u_long))
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casueword_smap : casueword_nosmap);
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}
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#undef copyinstr
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#undef copyin
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#undef copyout
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int copyinstr_nosmap(const void *udaddr, void *kaddr, size_t len,
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size_t *lencopied);
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int copyinstr_smap(const void *udaddr, void *kaddr, size_t len,
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@ -64,6 +64,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/callout.h>
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#include <sys/cons.h>
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#include <sys/cpu.h>
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#include <sys/csan.h>
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#include <sys/efi.h>
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#include <sys/eventhandler.h>
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#include <sys/exec.h>
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@ -1899,6 +1900,8 @@ hammer_time(u_int64_t modulep, u_int64_t physfree)
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cpu_probe_amdc1e();
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kcsan_cpu_init(0);
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#ifdef FDT
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x86_init_fdt();
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#endif
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@ -2722,6 +2725,40 @@ outb_(u_short port, u_char data)
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void *memset_std(void *buf, int c, size_t len);
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void *memset_erms(void *buf, int c, size_t len);
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void *memmove_std(void * _Nonnull dst, const void * _Nonnull src,
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size_t len);
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void *memmove_erms(void * _Nonnull dst, const void * _Nonnull src,
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size_t len);
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void *memcpy_std(void * _Nonnull dst, const void * _Nonnull src,
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size_t len);
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void *memcpy_erms(void * _Nonnull dst, const void * _Nonnull src,
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size_t len);
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#ifdef KCSAN
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/*
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* These fail to build as ifuncs when used with KCSAN.
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*/
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void *
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memset(void *buf, int c, size_t len)
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{
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return memset_std(buf, c, len);
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}
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void *
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memmove(void * _Nonnull dst, const void * _Nonnull src, size_t len)
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{
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return memmove_std(dst, src, len);
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}
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void *
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memcpy(void * _Nonnull dst, const void * _Nonnull src, size_t len)
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{
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return memcpy_std(dst, src, len);
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}
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#else
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DEFINE_IFUNC(, void *, memset, (void *, int, size_t))
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{
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@ -2729,10 +2766,6 @@ DEFINE_IFUNC(, void *, memset, (void *, int, size_t))
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memset_erms : memset_std);
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}
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void *memmove_std(void * _Nonnull dst, const void * _Nonnull src,
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size_t len);
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void *memmove_erms(void * _Nonnull dst, const void * _Nonnull src,
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size_t len);
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DEFINE_IFUNC(, void *, memmove, (void * _Nonnull, const void * _Nonnull,
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size_t))
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{
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@ -2741,16 +2774,13 @@ DEFINE_IFUNC(, void *, memmove, (void * _Nonnull, const void * _Nonnull,
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memmove_erms : memmove_std);
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}
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void *memcpy_std(void * _Nonnull dst, const void * _Nonnull src,
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size_t len);
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void *memcpy_erms(void * _Nonnull dst, const void * _Nonnull src,
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size_t len);
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DEFINE_IFUNC(, void *, memcpy, (void * _Nonnull, const void * _Nonnull,size_t))
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{
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return ((cpu_stdext_feature & CPUID_STDEXT_ERMS) != 0 ?
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memcpy_erms : memcpy_std);
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}
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#endif
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void pagezero_std(void *addr);
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void pagezero_erms(void *addr);
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@ -106,6 +106,7 @@ options VERBOSE_SYSINIT=0 # Support debug.verbose_sysinit, off by default
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#options KCOV # Kernel Coverage Sanitizer
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# Warning: KUBSAN can result in a kernel too large for loader to load
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#options KUBSAN # Kernel Undefined Behavior Sanitizer
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#options KCSAN # Kernel Concurrency Sanitizer
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# Kernel dump features.
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options EKCD # Support for encrypted kernel dumps
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33
sys/amd64/conf/GENERIC-KCSAN
Normal file
33
sys/amd64/conf/GENERIC-KCSAN
Normal file
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@ -0,0 +1,33 @@
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#
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# GENERIC-KCSAN -- Kernel Concurrency Sanitizer kernel configuration file
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# for FreeBSD/amd64
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#
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# This configuration file removes several debugging options, including
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# WITNESS and INVARIANTS checking, which are known to have significant
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# performance impact on running systems. When benchmarking new features
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# this kernel should be used instead of the standard GENERIC.
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# This kernel configuration should never appear outside of the HEAD
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# of the FreeBSD tree.
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#
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# For more information on this file, please read the config(5) manual page,
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# and/or the handbook section on Kernel Configuration Files:
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#
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# https://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
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#
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# The handbook is also available locally in /usr/share/doc/handbook
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# if you've installed the doc distribution, otherwise always see the
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# FreeBSD World Wide Web server (https://www.FreeBSD.org/) for the
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# latest information.
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#
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# An exhaustive list of options and more detailed explanations of the
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# device lines is also present in the ../../conf/NOTES and NOTES files.
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# If you are in doubt as to the purpose or necessity of a line, check first
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# in NOTES.
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#
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# $FreeBSD$
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include GENERIC
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ident GENERIC-KCSAN
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options KCSAN
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@ -57,6 +57,20 @@
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#define wmb() __asm __volatile("sfence;" : : : "memory")
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#define rmb() __asm __volatile("lfence;" : : : "memory")
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#ifdef _KERNEL
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/*
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* OFFSETOF_MONITORBUF == __pcpu_offset(pc_monitorbuf).
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*
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* The open-coded number is used instead of the symbolic expression to
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* avoid a dependency on sys/pcpu.h in machine/atomic.h consumers.
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* An assertion in amd64/vm_machdep.c ensures that the value is correct.
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*/
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#define OFFSETOF_MONITORBUF 0x100
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#endif
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#if defined(KCSAN) && !defined(KCSAN_RUNTIME)
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#include <sys/_cscan_atomic.h>
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#else
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#include <sys/atomic_common.h>
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/*
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@ -345,15 +359,6 @@ atomic_testandclear_long(volatile u_long *p, u_int v)
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#if defined(_KERNEL)
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/*
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* OFFSETOF_MONITORBUF == __pcpu_offset(pc_monitorbuf).
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*
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* The open-coded number is used instead of the symbolic expression to
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* avoid a dependency on sys/pcpu.h in machine/atomic.h consumers.
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* An assertion in amd64/vm_machdep.c ensures that the value is correct.
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*/
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#define OFFSETOF_MONITORBUF 0x100
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#if defined(SMP) || defined(KLD_MODULE)
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static __inline void
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__storeload_barrier(void)
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@ -679,4 +684,6 @@ u_long atomic_swap_long(volatile u_long *p, u_long v);
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#endif /* !WANT_FUNCTIONS */
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#endif /* KCSAN && !KCSAN_RUNTIME */
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#endif /* !_MACHINE_ATOMIC_H_ */
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67
sys/amd64/include/csan.h
Normal file
67
sys/amd64/include/csan.h
Normal file
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@ -0,0 +1,67 @@
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/* $NetBSD: csan.h,v 1.2 2019/11/06 06:57:22 maxv Exp $ */
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/*
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* Copyright (c) 2019 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Maxime Villard.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <machine/cpufunc.h>
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#include <machine/stack.h>
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#include <machine/vmparam.h>
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static inline bool
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kcsan_md_is_avail(void)
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{
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return true;
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}
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static inline void
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kcsan_md_disable_intrs(uint64_t *state)
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{
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*state = intr_disable();
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}
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static inline void
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kcsan_md_enable_intrs(uint64_t *state)
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{
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intr_restore(*state);
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}
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static inline void
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kcsan_md_delay(uint64_t us)
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{
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DELAY(us);
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}
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static void
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kcsan_md_unwind(void)
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{
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}
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@ -25,6 +25,8 @@
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*
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*/
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#define KCSAN_RUNTIME
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#include "opt_platform.h"
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#include <sys/param.h>
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@ -32,7 +32,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/systm.h>
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int
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copystr(const void * __restrict kfaddr, void * __restrict kdaddr, size_t len,
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(copystr)(const void * __restrict kfaddr, void * __restrict kdaddr, size_t len,
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size_t * __restrict lencopied)
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{
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const char *src;
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@ -38,6 +38,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/bus.h>
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#include <sys/cons.h>
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#include <sys/cpu.h>
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#include <sys/csan.h>
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#include <sys/devmap.h>
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#include <sys/efi.h>
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#include <sys/exec.h>
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@ -1209,6 +1210,8 @@ initarm(struct arm64_bootparams *abp)
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kdb_init();
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pan_enable();
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kcsan_cpu_init(0);
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env = kern_getenv("kernelname");
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if (env != NULL)
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strlcpy(kernelname, env, sizeof(kernelname));
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@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/cpu.h>
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#include <sys/csan.h>
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#include <sys/kernel.h>
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#include <sys/ktr.h>
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#include <sys/malloc.h>
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@ -253,6 +254,8 @@ init_secondary(uint64_t cpu)
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mtx_unlock_spin(&ap_boot_mtx);
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kcsan_cpu_init(cpu);
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/* Enter the scheduler */
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sched_throw(NULL);
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@ -100,6 +100,7 @@ options VERBOSE_SYSINIT=0 # Support debug.verbose_sysinit, off by default
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#options KCOV # Kernel Coverage Sanitizer
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# Warning: KUBSAN can result in a kernel too large for loader to load
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#options KUBSAN # Kernel Undefined Behavior Sanitizer
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#options KCSAN # Kernel Concurrency Sanitizer
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# Kernel dump features.
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options EKCD # Support for encrypted kernel dumps
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@ -29,8 +29,6 @@
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#ifndef _MACHINE_ATOMIC_H_
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#define _MACHINE_ATOMIC_H_
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#include <sys/atomic_common.h>
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#define isb() __asm __volatile("isb" : : : "memory")
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/*
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@ -55,6 +53,12 @@
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#define wmb() dmb(st) /* Full system memory barrier store */
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#define rmb() dmb(ld) /* Full system memory barrier load */
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#if defined(KCSAN) && !defined(KCSAN_RUNTIME)
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#include <sys/_cscan_atomic.h>
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#else
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#include <sys/atomic_common.h>
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#define ATOMIC_OP(op, asm_op, bar, a, l) \
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static __inline void \
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atomic_##op##_##bar##8(volatile uint8_t *p, uint8_t val) \
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@ -601,5 +605,7 @@ atomic_thread_fence_seq_cst(void)
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dmb(sy);
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}
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#endif /* KCSAN && !KCSAN_RUNTIME */
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#endif /* _MACHINE_ATOMIC_H_ */
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@ -89,6 +89,9 @@
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#define BUS_SPACE_BARRIER_READ 0x01
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#define BUS_SPACE_BARRIER_WRITE 0x02
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#if defined(KCSAN) && !defined(KCSAN_RUNTIME)
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#include <sys/_cscan_bus.h>
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#else
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struct bus_space {
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/* cookie */
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@ -464,6 +467,8 @@ struct bus_space {
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#define bus_space_copy_region_8(t, h1, o1, h2, o2, c) \
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__bs_copy(8, t, h1, o1, h2, o2, c)
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#endif
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#include <machine/bus_dma.h>
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#endif /* _MACHINE_BUS_H_ */
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|
|
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104
sys/arm64/include/csan.h
Normal file
104
sys/arm64/include/csan.h
Normal file
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@ -0,0 +1,104 @@
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/* $NetBSD: csan.h,v 1.2 2019/11/06 06:57:22 maxv Exp $ */
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/*
|
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* Copyright (c) 2019 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Maxime Villard.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#include <machine/cpufunc.h>
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#include <machine/stack.h>
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#include <machine/vmparam.h>
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|
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static inline bool
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kcsan_md_is_avail(void)
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{
|
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return true;
|
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}
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static inline void
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kcsan_md_disable_intrs(uint64_t *state)
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{
|
||||
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||||
*state = intr_disable();
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}
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static inline void
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kcsan_md_enable_intrs(uint64_t *state)
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{
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intr_restore(*state);
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}
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static inline void
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kcsan_md_delay(uint64_t us)
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{
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DELAY(us);
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||||
}
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static void
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kcsan_md_unwind(void)
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{
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#ifdef DDB
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c_db_sym_t sym;
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db_expr_t offset;
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const char *symname;
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#endif
|
||||
struct unwind_state frame;
|
||||
uint64_t sp;
|
||||
int nsym;
|
||||
|
||||
__asm __volatile("mov %0, sp" : "=&r" (sp));
|
||||
|
||||
frame.sp = sp;
|
||||
frame.fp = (uint64_t)__builtin_frame_address(0);
|
||||
frame.pc = (uint64_t)kcsan_md_unwind;
|
||||
nsym = 0;
|
||||
|
||||
while (1) {
|
||||
unwind_frame(&frame);
|
||||
if (!INKERNEL((vm_offset_t)frame.fp) ||
|
||||
!INKERNEL((vm_offset_t)frame.pc))
|
||||
break;
|
||||
|
||||
#ifdef DDB
|
||||
sym = db_search_symbol((vm_offset_t)frame.pc, DB_STGY_PROC,
|
||||
&offset);
|
||||
db_symbol_values(sym, &symname, NULL);
|
||||
printf("#%d %p in %s+%#lx\n", nsym, (void *)frame.pc,
|
||||
symname, offset);
|
||||
#else
|
||||
printf("#%d %p\n", nsym, (void *)frame.pc);
|
||||
#endif
|
||||
nsym++;
|
||||
|
||||
if (nsym >= 15) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -3805,6 +3805,8 @@ kern/subr_compressor.c standard \
|
|||
kern/subr_coverage.c optional coverage \
|
||||
compile-with "${NORMAL_C:N-fsanitize*}"
|
||||
kern/subr_counter.c standard
|
||||
kern/subr_csan.c optional kcsan \
|
||||
compile-with "${NORMAL_C:N-fsanitize*}"
|
||||
kern/subr_devstat.c standard
|
||||
kern/subr_disk.c standard
|
||||
kern/subr_early.c standard
|
||||
|
|
|
|||
|
|
@ -286,8 +286,10 @@ kern/pic_if.m optional intrng
|
|||
kern/subr_devmap.c standard
|
||||
kern/subr_intr.c optional intrng
|
||||
libkern/bcmp.c standard
|
||||
libkern/memcmp.c standard
|
||||
libkern/memset.c standard
|
||||
libkern/memcmp.c standard \
|
||||
compile-with "${NORMAL_C:N-fsanitize*}"
|
||||
libkern/memset.c standard \
|
||||
compile-with "${NORMAL_C:N-fsanitize*}"
|
||||
libkern/arm64/crc32c_armv8.S standard
|
||||
cddl/dev/dtrace/aarch64/dtrace_asm.S optional dtrace compile-with "${DTRACE_S}"
|
||||
cddl/dev/dtrace/aarch64/dtrace_subr.c optional dtrace compile-with "${DTRACE_C}"
|
||||
|
|
|
|||
|
|
@ -38,6 +38,10 @@ MKMODULESENV+= WITH_CTF="${WITH_CTF}"
|
|||
MKMODULESENV+= WITH_EXTRA_TCP_STACKS="${WITH_EXTRA_TCP_STACKS}"
|
||||
.endif
|
||||
|
||||
.if defined(KCSAN_ENABLED)
|
||||
MKMODULESENV+= KCSAN_ENABLED="yes"
|
||||
.endif
|
||||
|
||||
.if defined(SAN_CFLAGS)
|
||||
MKMODULESENV+= SAN_CFLAGS="${SAN_CFLAGS}"
|
||||
.endif
|
||||
|
|
|
|||
|
|
@ -117,6 +117,11 @@ PROF= -pg
|
|||
.endif
|
||||
DEFINED_PROF= ${PROF}
|
||||
|
||||
KCSAN_ENABLED!= grep KCSAN opt_global.h || true ; echo
|
||||
.if !empty(KCSAN_ENABLED)
|
||||
SAN_CFLAGS+= -fsanitize=thread
|
||||
.endif
|
||||
|
||||
KUBSAN_ENABLED!= grep KUBSAN opt_global.h || true ; echo
|
||||
.if !empty(KUBSAN_ENABLED)
|
||||
SAN_CFLAGS+= -fsanitize=undefined
|
||||
|
|
|
|||
|
|
@ -230,6 +230,7 @@ ZSTDIO opt_zstdio.h
|
|||
# Sanitizers
|
||||
COVERAGE opt_global.h
|
||||
KCOV
|
||||
KCSAN opt_global.h
|
||||
KUBSAN opt_global.h
|
||||
|
||||
# POSIX kernel options
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load diff
|
|
@ -292,7 +292,7 @@ struct kaioinfo {
|
|||
* Different ABIs provide their own operations.
|
||||
*/
|
||||
struct aiocb_ops {
|
||||
int (*copyin)(struct aiocb *ujob, struct aiocb *kjob);
|
||||
int (*aio_copyin)(struct aiocb *ujob, struct aiocb *kjob);
|
||||
long (*fetch_status)(struct aiocb *ujob);
|
||||
long (*fetch_error)(struct aiocb *ujob);
|
||||
int (*store_status)(struct aiocb *ujob, long status);
|
||||
|
|
@ -1420,7 +1420,7 @@ aiocb_store_aiocb(struct aiocb **ujobp, struct aiocb *ujob)
|
|||
}
|
||||
|
||||
static struct aiocb_ops aiocb_ops = {
|
||||
.copyin = aiocb_copyin,
|
||||
.aio_copyin = aiocb_copyin,
|
||||
.fetch_status = aiocb_fetch_status,
|
||||
.fetch_error = aiocb_fetch_error,
|
||||
.store_status = aiocb_store_status,
|
||||
|
|
@ -1431,7 +1431,7 @@ static struct aiocb_ops aiocb_ops = {
|
|||
|
||||
#ifdef COMPAT_FREEBSD6
|
||||
static struct aiocb_ops aiocb_ops_osigevent = {
|
||||
.copyin = aiocb_copyin_old_sigevent,
|
||||
.aio_copyin = aiocb_copyin_old_sigevent,
|
||||
.fetch_status = aiocb_fetch_status,
|
||||
.fetch_error = aiocb_fetch_error,
|
||||
.store_status = aiocb_store_status,
|
||||
|
|
@ -1478,7 +1478,7 @@ aio_aqueue(struct thread *td, struct aiocb *ujob, struct aioliojob *lj,
|
|||
job = uma_zalloc(aiocb_zone, M_WAITOK | M_ZERO);
|
||||
knlist_init_mtx(&job->klist, AIO_MTX(ki));
|
||||
|
||||
error = ops->copyin(ujob, &job->uaiocb);
|
||||
error = ops->aio_copyin(ujob, &job->uaiocb);
|
||||
if (error) {
|
||||
ops->store_error(ujob, error);
|
||||
uma_zfree(aiocb_zone, job);
|
||||
|
|
@ -2743,7 +2743,7 @@ aiocb32_store_aiocb(struct aiocb **ujobp, struct aiocb *ujob)
|
|||
}
|
||||
|
||||
static struct aiocb_ops aiocb32_ops = {
|
||||
.copyin = aiocb32_copyin,
|
||||
.aio_copyin = aiocb32_copyin,
|
||||
.fetch_status = aiocb32_fetch_status,
|
||||
.fetch_error = aiocb32_fetch_error,
|
||||
.store_status = aiocb32_store_status,
|
||||
|
|
@ -2754,7 +2754,7 @@ static struct aiocb_ops aiocb32_ops = {
|
|||
|
||||
#ifdef COMPAT_FREEBSD6
|
||||
static struct aiocb_ops aiocb32_ops_osigevent = {
|
||||
.copyin = aiocb32_copyin_old_sigevent,
|
||||
.aio_copyin = aiocb32_copyin_old_sigevent,
|
||||
.fetch_status = aiocb32_fetch_status,
|
||||
.fetch_error = aiocb32_fetch_error,
|
||||
.store_status = aiocb32_store_status,
|
||||
|
|
|
|||
|
|
@ -41,7 +41,7 @@ __FBSDID("$FreeBSD$");
|
|||
* Compare strings.
|
||||
*/
|
||||
int
|
||||
strcmp(const char *s1, const char *s2)
|
||||
(strcmp)(const char *s1, const char *s2)
|
||||
{
|
||||
while (*s1 == *s2++)
|
||||
if (*s1++ == '\0')
|
||||
|
|
|
|||
|
|
@ -35,7 +35,7 @@ __FBSDID("$FreeBSD$");
|
|||
#include <sys/libkern.h>
|
||||
|
||||
char *
|
||||
strcpy(char * __restrict to, const char * __restrict from)
|
||||
(strcpy)(char * __restrict to, const char * __restrict from)
|
||||
{
|
||||
char *save = to;
|
||||
|
||||
|
|
|
|||
|
|
@ -80,7 +80,7 @@ static const unsigned long mask80 = 0x8080808080808080;
|
|||
} while (0)
|
||||
|
||||
size_t
|
||||
strlen(const char *str)
|
||||
(strlen)(const char *str)
|
||||
{
|
||||
const char *p;
|
||||
const unsigned long *lp;
|
||||
|
|
|
|||
|
|
@ -644,11 +644,11 @@ _ciss= ciss
|
|||
_chromebook_platform= chromebook_platform
|
||||
_cmx= cmx
|
||||
_coretemp= coretemp
|
||||
.if ${MK_SOURCELESS_HOST} != "no"
|
||||
.if ${MK_SOURCELESS_HOST} != "no" && empty(KCSAN_ENABLED)
|
||||
_hpt27xx= hpt27xx
|
||||
.endif
|
||||
_hptiop= hptiop
|
||||
.if ${MK_SOURCELESS_HOST} != "no"
|
||||
.if ${MK_SOURCELESS_HOST} != "no" && empty(KCSAN_ENABLED)
|
||||
_hptmv= hptmv
|
||||
_hptnr= hptnr
|
||||
_hptrr= hptrr
|
||||
|
|
|
|||
307
sys/sys/_cscan_atomic.h
Normal file
307
sys/sys/_cscan_atomic.h
Normal file
|
|
@ -0,0 +1,307 @@
|
|||
/*-
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*
|
||||
* Copyright (c) 2019 Andrew Turner
|
||||
*
|
||||
* This software was developed by SRI International and the University of
|
||||
* Cambridge Computer Laboratory (Department of Computer Science and
|
||||
* Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
|
||||
* DARPA SSITH research programme.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. 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 AUTHOR 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 AUTHOR 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.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#ifndef _SYS__CSAN_ATOMIC_H_
|
||||
#define _SYS__CSAN_ATOMIC_H_
|
||||
|
||||
#ifndef _MACHINE_ATOMIC_H_
|
||||
#error do not include this header, use machine/atomic.h
|
||||
#endif
|
||||
|
||||
#define KCSAN_ATOMIC_FUNC_1(op, name, type) \
|
||||
void kcsan_atomic_##op##_##name(volatile type *, type); \
|
||||
void kcsan_atomic_##op##_acq_##name(volatile type *, type); \
|
||||
void kcsan_atomic_##op##_rel_##name(volatile type *, type)
|
||||
|
||||
#define KCSAN_ATOMIC_CMPSET(name, type) \
|
||||
int kcsan_atomic_cmpset_##name(volatile type *, type, type); \
|
||||
int kcsan_atomic_cmpset_acq_##name(volatile type *, type, type); \
|
||||
int kcsan_atomic_cmpset_rel_##name(volatile type *, type, type)
|
||||
|
||||
#define KCSAN_ATOMIC_FCMPSET(name, type) \
|
||||
int kcsan_atomic_fcmpset_##name(volatile type *, type *, type); \
|
||||
int kcsan_atomic_fcmpset_acq_##name(volatile type *, type *, type); \
|
||||
int kcsan_atomic_fcmpset_rel_##name(volatile type *, type *, type)
|
||||
|
||||
#define KCSAN_ATOMIC_READ(op, name, type) \
|
||||
type kcsan_atomic_##op##_##name(volatile type *, type)
|
||||
|
||||
#define KCSAN_ATOMIC_READANDCLEAR(name, type) \
|
||||
type kcsan_atomic_readandclear_##name(volatile type *)
|
||||
|
||||
#define KCSAN_ATOMIC_LOAD(name, type) \
|
||||
type kcsan_atomic_load_##name(volatile type *); \
|
||||
type kcsan_atomic_load_acq_##name(volatile type *)
|
||||
|
||||
#define KCSAN_ATOMIC_STORE(name, type) \
|
||||
void kcsan_atomic_store_##name(volatile type *, type); \
|
||||
void kcsan_atomic_store_rel_##name(volatile type *, type)
|
||||
|
||||
#define KCSAN_ATOMIC_TEST(op, name, type) \
|
||||
int kcsan_atomic_##op##_##name(volatile type *, u_int)
|
||||
|
||||
#define KCSAN_ATOMIC_FUNCS(name, type) \
|
||||
KCSAN_ATOMIC_FUNC_1(add, name, type); \
|
||||
KCSAN_ATOMIC_FUNC_1(clear, name, type); \
|
||||
KCSAN_ATOMIC_CMPSET(name, type); \
|
||||
KCSAN_ATOMIC_FCMPSET(name, type); \
|
||||
KCSAN_ATOMIC_READ(fetchadd, name, type); \
|
||||
KCSAN_ATOMIC_LOAD(name, type); \
|
||||
KCSAN_ATOMIC_READANDCLEAR(name, type); \
|
||||
KCSAN_ATOMIC_FUNC_1(set, name, type); \
|
||||
KCSAN_ATOMIC_FUNC_1(subtract, name, type); \
|
||||
KCSAN_ATOMIC_STORE(name, type); \
|
||||
KCSAN_ATOMIC_READ(swap, name, type); \
|
||||
KCSAN_ATOMIC_TEST(testandclear, name, type); \
|
||||
KCSAN_ATOMIC_TEST(testandset, name, type)
|
||||
|
||||
KCSAN_ATOMIC_FUNCS(int, u_int);
|
||||
KCSAN_ATOMIC_FUNCS(long, u_long);
|
||||
KCSAN_ATOMIC_FUNCS(ptr, uintptr_t);
|
||||
KCSAN_ATOMIC_FUNCS(8, uint8_t);
|
||||
KCSAN_ATOMIC_FUNCS(16, uint16_t);
|
||||
KCSAN_ATOMIC_FUNCS(32, uint32_t);
|
||||
KCSAN_ATOMIC_FUNCS(64, uint64_t);
|
||||
|
||||
void kcsan_atomic_thread_fence_acq(void);
|
||||
void kcsan_atomic_thread_fence_acq_rel(void);
|
||||
void kcsan_atomic_thread_fence_rel(void);
|
||||
void kcsan_atomic_thread_fence_seq_cst(void);
|
||||
|
||||
#ifndef KCSAN_RUNTIME
|
||||
|
||||
#define atomic_add_int kcsan_atomic_add_int
|
||||
#define atomic_add_acq_int kcsan_atomic_add_acq_int
|
||||
#define atomic_add_rel_int kcsan_atomic_add_rel_int
|
||||
#define atomic_clear_int kcsan_atomic_clear_int
|
||||
#define atomic_clear_acq_int kcsan_atomic_clear_acq_int
|
||||
#define atomic_clear_rel_int kcsan_atomic_clear_rel_int
|
||||
#define atomic_cmpset_int kcsan_atomic_cmpset_int
|
||||
#define atomic_cmpset_acq_int kcsan_atomic_cmpset_acq_int
|
||||
#define atomic_cmpset_rel_int kcsan_atomic_cmpset_rel_int
|
||||
#define atomic_fcmpset_int kcsan_atomic_fcmpset_int
|
||||
#define atomic_fcmpset_acq_int kcsan_atomic_fcmpset_acq_int
|
||||
#define atomic_fcmpset_rel_int kcsan_atomic_fcmpset_rel_int
|
||||
#define atomic_fetchadd_int kcsan_atomic_fetchadd_int
|
||||
#define atomic_load_int kcsan_atomic_load_int
|
||||
#define atomic_load_acq_int kcsan_atomic_load_acq_int
|
||||
#define atomic_readandclear_int kcsan_atomic_readandclear_int
|
||||
#define atomic_set_int kcsan_atomic_set_int
|
||||
#define atomic_set_acq_int kcsan_atomic_set_acq_int
|
||||
#define atomic_set_rel_int kcsan_atomic_set_rel_int
|
||||
#define atomic_subtract_int kcsan_atomic_subtract_int
|
||||
#define atomic_subtract_acq_int kcsan_atomic_subtract_acq_int
|
||||
#define atomic_subtract_rel_int kcsan_atomic_subtract_rel_int
|
||||
#define atomic_store_int kcsan_atomic_store_int
|
||||
#define atomic_store_rel_int kcsan_atomic_store_rel_int
|
||||
#define atomic_swap_int kcsan_atomic_swap_int
|
||||
#define atomic_testandclear_int kcsan_atomic_testandclear_int
|
||||
#define atomic_testandset_int kcsan_atomic_testandset_int
|
||||
|
||||
#define atomic_add_long kcsan_atomic_add_long
|
||||
#define atomic_add_acq_long kcsan_atomic_add_acq_long
|
||||
#define atomic_add_rel_long kcsan_atomic_add_rel_long
|
||||
#define atomic_clear_long kcsan_atomic_clear_long
|
||||
#define atomic_clear_acq_long kcsan_atomic_clear_acq_long
|
||||
#define atomic_clear_rel_long kcsan_atomic_clear_rel_long
|
||||
#define atomic_cmpset_long kcsan_atomic_cmpset_long
|
||||
#define atomic_cmpset_acq_long kcsan_atomic_cmpset_acq_long
|
||||
#define atomic_cmpset_rel_long kcsan_atomic_cmpset_rel_long
|
||||
#define atomic_fcmpset_long kcsan_atomic_fcmpset_long
|
||||
#define atomic_fcmpset_acq_long kcsan_atomic_fcmpset_acq_long
|
||||
#define atomic_fcmpset_rel_long kcsan_atomic_fcmpset_rel_long
|
||||
#define atomic_fetchadd_long kcsan_atomic_fetchadd_long
|
||||
#define atomic_load_long kcsan_atomic_load_long
|
||||
#define atomic_load_acq_long kcsan_atomic_load_acq_long
|
||||
#define atomic_readandclear_long kcsan_atomic_readandclear_long
|
||||
#define atomic_set_long kcsan_atomic_set_long
|
||||
#define atomic_set_acq_long kcsan_atomic_set_acq_long
|
||||
#define atomic_set_rel_long kcsan_atomic_set_rel_long
|
||||
#define atomic_subtract_long kcsan_atomic_subtract_long
|
||||
#define atomic_subtract_acq_long kcsan_atomic_subtract_acq_long
|
||||
#define atomic_subtract_rel_long kcsan_atomic_subtract_rel_long
|
||||
#define atomic_store_long kcsan_atomic_store_long
|
||||
#define atomic_store_rel_long kcsan_atomic_store_rel_long
|
||||
#define atomic_swap_long kcsan_atomic_swap_long
|
||||
#define atomic_testandclear_long kcsan_atomic_testandclear_long
|
||||
#define atomic_testandset_long kcsan_atomic_testandset_long
|
||||
|
||||
#define atomic_add_ptr kcsan_atomic_add_ptr
|
||||
#define atomic_add_acq_ptr kcsan_atomic_add_acq_ptr
|
||||
#define atomic_add_rel_ptr kcsan_atomic_add_rel_ptr
|
||||
#define atomic_clear_ptr kcsan_atomic_clear_ptr
|
||||
#define atomic_clear_acq_ptr kcsan_atomic_clear_acq_ptr
|
||||
#define atomic_clear_rel_ptr kcsan_atomic_clear_rel_ptr
|
||||
#define atomic_cmpset_ptr kcsan_atomic_cmpset_ptr
|
||||
#define atomic_cmpset_acq_ptr kcsan_atomic_cmpset_acq_ptr
|
||||
#define atomic_cmpset_rel_ptr kcsan_atomic_cmpset_rel_ptr
|
||||
#define atomic_fcmpset_ptr kcsan_atomic_fcmpset_ptr
|
||||
#define atomic_fcmpset_acq_ptr kcsan_atomic_fcmpset_acq_ptr
|
||||
#define atomic_fcmpset_rel_ptr kcsan_atomic_fcmpset_rel_ptr
|
||||
#define atomic_fetchadd_ptr kcsan_atomic_fetchadd_ptr
|
||||
#define atomic_load_ptr(x) kcsan_atomic_load_ptr((volatile uintptr_t *)(x))
|
||||
#define atomic_load_acq_ptr kcsan_atomic_load_acq_ptr
|
||||
#define atomic_readandclear_ptr kcsan_atomic_readandclear_ptr
|
||||
#define atomic_set_ptr kcsan_atomic_set_ptr
|
||||
#define atomic_set_acq_ptr kcsan_atomic_set_acq_ptr
|
||||
#define atomic_set_rel_ptr kcsan_atomic_set_rel_ptr
|
||||
#define atomic_subtract_ptr kcsan_atomic_subtract_ptr
|
||||
#define atomic_subtract_acq_ptr kcsan_atomic_subtract_acq_ptr
|
||||
#define atomic_subtract_rel_ptr kcsan_atomic_subtract_rel_ptr
|
||||
#define atomic_store_ptr kcsan_atomic_store_ptr
|
||||
#define atomic_store_rel_ptr kcsan_atomic_store_rel_ptr
|
||||
#define atomic_swap_ptr kcsan_atomic_swap_ptr
|
||||
#define atomic_testandclear_ptr kcsan_atomic_testandclear_ptr
|
||||
#define atomic_testandset_ptr kcsan_atomic_testandset_ptr
|
||||
|
||||
#define atomic_add_8 kcsan_atomic_add_8
|
||||
#define atomic_add_acq_8 kcsan_atomic_add_acq_8
|
||||
#define atomic_add_rel_8 kcsan_atomic_add_rel_8
|
||||
#define atomic_clear_8 kcsan_atomic_clear_8
|
||||
#define atomic_clear_acq_8 kcsan_atomic_clear_acq_8
|
||||
#define atomic_clear_rel_8 kcsan_atomic_clear_rel_8
|
||||
#define atomic_cmpset_8 kcsan_atomic_cmpset_8
|
||||
#define atomic_cmpset_acq_8 kcsan_atomic_cmpset_acq_8
|
||||
#define atomic_cmpset_rel_8 kcsan_atomic_cmpset_rel_8
|
||||
#define atomic_fcmpset_8 kcsan_atomic_fcmpset_8
|
||||
#define atomic_fcmpset_acq_8 kcsan_atomic_fcmpset_acq_8
|
||||
#define atomic_fcmpset_rel_8 kcsan_atomic_fcmpset_rel_8
|
||||
#define atomic_fetchadd_8 kcsan_atomic_fetchadd_8
|
||||
#define atomic_load_8 kcsan_atomic_load_8
|
||||
#define atomic_load_acq_8 kcsan_atomic_load_acq_8
|
||||
#define atomic_readandclear_8 kcsan_atomic_readandclear_8
|
||||
#define atomic_set_8 kcsan_atomic_set_8
|
||||
#define atomic_set_acq_8 kcsan_atomic_set_acq_8
|
||||
#define atomic_set_rel_8 kcsan_atomic_set_rel_8
|
||||
#define atomic_subtract_8 kcsan_atomic_subtract_8
|
||||
#define atomic_subtract_acq_8 kcsan_atomic_subtract_acq_8
|
||||
#define atomic_subtract_rel_8 kcsan_atomic_subtract_rel_8
|
||||
#define atomic_store_8 kcsan_atomic_store_8
|
||||
#define atomic_store_rel_8 kcsan_atomic_store_rel_8
|
||||
#define atomic_swap_8 kcsan_atomic_swap_8
|
||||
#define atomic_testandclear_8 kcsan_atomic_testandclear_8
|
||||
#define atomic_testandset_8 kcsan_atomic_testandset_8
|
||||
|
||||
#define atomic_add_16 kcsan_atomic_add_16
|
||||
#define atomic_add_acq_16 kcsan_atomic_add_acq_16
|
||||
#define atomic_add_rel_16 kcsan_atomic_add_rel_16
|
||||
#define atomic_clear_16 kcsan_atomic_clear_16
|
||||
#define atomic_clear_acq_16 kcsan_atomic_clear_acq_16
|
||||
#define atomic_clear_rel_16 kcsan_atomic_clear_rel_16
|
||||
#define atomic_cmpset_16 kcsan_atomic_cmpset_16
|
||||
#define atomic_cmpset_acq_16 kcsan_atomic_cmpset_acq_16
|
||||
#define atomic_cmpset_rel_16 kcsan_atomic_cmpset_rel_16
|
||||
#define atomic_fcmpset_16 kcsan_atomic_fcmpset_16
|
||||
#define atomic_fcmpset_acq_16 kcsan_atomic_fcmpset_acq_16
|
||||
#define atomic_fcmpset_rel_16 kcsan_atomic_fcmpset_rel_16
|
||||
#define atomic_fetchadd_16 kcsan_atomic_fetchadd_16
|
||||
#define atomic_load_16 kcsan_atomic_load_16
|
||||
#define atomic_load_acq_16 kcsan_atomic_load_acq_16
|
||||
#define atomic_readandclear_16 kcsan_atomic_readandclear_16
|
||||
#define atomic_set_16 kcsan_atomic_set_16
|
||||
#define atomic_set_acq_16 kcsan_atomic_set_acq_16
|
||||
#define atomic_set_rel_16 kcsan_atomic_set_rel_16
|
||||
#define atomic_subtract_16 kcsan_atomic_subtract_16
|
||||
#define atomic_subtract_acq_16 kcsan_atomic_subtract_acq_16
|
||||
#define atomic_subtract_rel_16 kcsan_atomic_subtract_rel_16
|
||||
#define atomic_store_16 kcsan_atomic_store_16
|
||||
#define atomic_store_rel_16 kcsan_atomic_store_rel_16
|
||||
#define atomic_swap_16 kcsan_atomic_swap_16
|
||||
#define atomic_testandclear_16 kcsan_atomic_testandclear_16
|
||||
#define atomic_testandset_16 kcsan_atomic_testandset_16
|
||||
|
||||
#define atomic_add_32 kcsan_atomic_add_32
|
||||
#define atomic_add_acq_32 kcsan_atomic_add_acq_32
|
||||
#define atomic_add_rel_32 kcsan_atomic_add_rel_32
|
||||
#define atomic_clear_32 kcsan_atomic_clear_32
|
||||
#define atomic_clear_acq_32 kcsan_atomic_clear_acq_32
|
||||
#define atomic_clear_rel_32 kcsan_atomic_clear_rel_32
|
||||
#define atomic_cmpset_32 kcsan_atomic_cmpset_32
|
||||
#define atomic_cmpset_acq_32 kcsan_atomic_cmpset_acq_32
|
||||
#define atomic_cmpset_rel_32 kcsan_atomic_cmpset_rel_32
|
||||
#define atomic_fcmpset_32 kcsan_atomic_fcmpset_32
|
||||
#define atomic_fcmpset_acq_32 kcsan_atomic_fcmpset_acq_32
|
||||
#define atomic_fcmpset_rel_32 kcsan_atomic_fcmpset_rel_32
|
||||
#define atomic_fetchadd_32 kcsan_atomic_fetchadd_32
|
||||
#define atomic_load_32 kcsan_atomic_load_32
|
||||
#define atomic_load_acq_32 kcsan_atomic_load_acq_32
|
||||
#define atomic_readandclear_32 kcsan_atomic_readandclear_32
|
||||
#define atomic_set_32 kcsan_atomic_set_32
|
||||
#define atomic_set_acq_32 kcsan_atomic_set_acq_32
|
||||
#define atomic_set_rel_32 kcsan_atomic_set_rel_32
|
||||
#define atomic_subtract_32 kcsan_atomic_subtract_32
|
||||
#define atomic_subtract_acq_32 kcsan_atomic_subtract_acq_32
|
||||
#define atomic_subtract_rel_32 kcsan_atomic_subtract_rel_32
|
||||
#define atomic_store_32 kcsan_atomic_store_32
|
||||
#define atomic_store_rel_32 kcsan_atomic_store_rel_32
|
||||
#define atomic_swap_32 kcsan_atomic_swap_32
|
||||
#define atomic_testandclear_32 kcsan_atomic_testandclear_32
|
||||
#define atomic_testandset_32 kcsan_atomic_testandset_32
|
||||
|
||||
#define atomic_add_64 kcsan_atomic_add_64
|
||||
#define atomic_add_acq_64 kcsan_atomic_add_acq_64
|
||||
#define atomic_add_rel_64 kcsan_atomic_add_rel_64
|
||||
#define atomic_clear_64 kcsan_atomic_clear_64
|
||||
#define atomic_clear_acq_64 kcsan_atomic_clear_acq_64
|
||||
#define atomic_clear_rel_64 kcsan_atomic_clear_rel_64
|
||||
#define atomic_cmpset_64 kcsan_atomic_cmpset_64
|
||||
#define atomic_cmpset_acq_64 kcsan_atomic_cmpset_acq_64
|
||||
#define atomic_cmpset_rel_64 kcsan_atomic_cmpset_rel_64
|
||||
#define atomic_fcmpset_64 kcsan_atomic_fcmpset_64
|
||||
#define atomic_fcmpset_acq_64 kcsan_atomic_fcmpset_acq_64
|
||||
#define atomic_fcmpset_rel_64 kcsan_atomic_fcmpset_rel_64
|
||||
#define atomic_fetchadd_64 kcsan_atomic_fetchadd_64
|
||||
#define atomic_load_64 kcsan_atomic_load_64
|
||||
#define atomic_load_acq_64 kcsan_atomic_load_acq_64
|
||||
#define atomic_readandclear_64 kcsan_atomic_readandclear_64
|
||||
#define atomic_set_64 kcsan_atomic_set_64
|
||||
#define atomic_set_acq_64 kcsan_atomic_set_acq_64
|
||||
#define atomic_set_rel_64 kcsan_atomic_set_rel_64
|
||||
#define atomic_subtract_64 kcsan_atomic_subtract_64
|
||||
#define atomic_subtract_acq_64 kcsan_atomic_subtract_acq_64
|
||||
#define atomic_subtract_rel_64 kcsan_atomic_subtract_rel_64
|
||||
#define atomic_store_64 kcsan_atomic_store_64
|
||||
#define atomic_store_rel_64 kcsan_atomic_store_rel_64
|
||||
#define atomic_swap_64 kcsan_atomic_swap_64
|
||||
#define atomic_testandclear_64 kcsan_atomic_testandclear_64
|
||||
#define atomic_testandset_64 kcsan_atomic_testandset_64
|
||||
|
||||
#define atomic_thread_fence_acq kcsan_atomic_thread_fence_acq
|
||||
#define atomic_thread_fence_acq_rel kcsan_atomic_thread_fence_acq_rel
|
||||
#define atomic_thread_fence_rel kcsan_atomic_thread_fence_rel
|
||||
#define atomic_thread_fence_seq_cst kcsan_atomic_thread_fence_seq_cst
|
||||
|
||||
#endif /* !KCSAN_RUNTIME */
|
||||
|
||||
#endif /* !_SYS__CSAN_ATOMIC_H_ */
|
||||
190
sys/sys/_cscan_bus.h
Normal file
190
sys/sys/_cscan_bus.h
Normal file
|
|
@ -0,0 +1,190 @@
|
|||
/*-
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*
|
||||
* Copyright (c) 2019 Andrew Turner
|
||||
*
|
||||
* This software was developed by SRI International and the University of
|
||||
* Cambridge Computer Laboratory (Department of Computer Science and
|
||||
* Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
|
||||
* DARPA SSITH research programme.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. 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 AUTHOR 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 AUTHOR 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.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#ifndef _SYS__CSAN_BUS_H_
|
||||
#define _SYS__CSAN_BUS_H_
|
||||
|
||||
#define KCSAN_BS_MULTI(rw, width, type) \
|
||||
void kcsan_bus_space_##rw##_multi_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t, type *, bus_size_t); \
|
||||
void kcsan_bus_space_##rw##_multi_stream_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t, type *, bus_size_t); \
|
||||
void kcsan_bus_space_##rw##_region_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t, type *, bus_size_t); \
|
||||
void kcsan_bus_space_##rw##_region_stream_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t, type *, bus_size_t)
|
||||
|
||||
#define KCSAN_BS_READ(width, type) \
|
||||
type kcsan_bus_space_read_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t); \
|
||||
type kcsan_bus_space_read_stream_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t); \
|
||||
KCSAN_BS_MULTI(read, width, type)
|
||||
|
||||
#define KCSAN_BS_WRITE(width, type) \
|
||||
void kcsan_bus_space_write_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t, type); \
|
||||
void kcsan_bus_space_write_stream_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t, type); \
|
||||
KCSAN_BS_MULTI(write, width, const type)
|
||||
|
||||
#define KCSAN_BS_SET(width, type) \
|
||||
void kcsan_bus_space_set_multi_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t, type, bus_size_t); \
|
||||
void kcsan_bus_space_set_multi_stream_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t, type, bus_size_t); \
|
||||
void kcsan_bus_space_set_region_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t, type, bus_size_t); \
|
||||
void kcsan_bus_space_set_region_stream_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t, type, bus_size_t)
|
||||
|
||||
#define KCSAN_BS_COPY(width, type) \
|
||||
void kcsan_bus_space_copy_region_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t, bus_space_handle_t, \
|
||||
bus_size_t, bus_size_t); \
|
||||
void kcsan_bus_space_copy_region_stream_##width(bus_space_tag_t, \
|
||||
bus_space_handle_t, bus_size_t, bus_space_handle_t, \
|
||||
bus_size_t, bus_size_t);
|
||||
|
||||
#define KCSAN_BS(width, type) \
|
||||
KCSAN_BS_READ(width, type); \
|
||||
KCSAN_BS_WRITE(width, type); \
|
||||
KCSAN_BS_SET(width, type); \
|
||||
KCSAN_BS_COPY(width, type)
|
||||
|
||||
KCSAN_BS(1, uint8_t);
|
||||
KCSAN_BS(2, uint16_t);
|
||||
KCSAN_BS(4, uint32_t);
|
||||
KCSAN_BS(8, uint64_t);
|
||||
|
||||
int kcsan_bus_space_map(bus_space_tag_t, bus_addr_t, bus_size_t, int,
|
||||
bus_space_handle_t *);
|
||||
void kcsan_bus_space_unmap(bus_space_tag_t, bus_space_handle_t, bus_size_t);
|
||||
int kcsan_bus_space_subregion(bus_space_tag_t, bus_space_handle_t, bus_size_t,
|
||||
bus_size_t, bus_space_handle_t *);
|
||||
int kcsan_bus_space_alloc(bus_space_tag_t, bus_addr_t, bus_addr_t,
|
||||
bus_size_t, bus_size_t, bus_size_t, int, bus_addr_t *,
|
||||
bus_space_handle_t *);
|
||||
void kcsan_bus_space_free(bus_space_tag_t, bus_space_handle_t, bus_size_t);
|
||||
void kcsan_bus_space_barrier(bus_space_tag_t, bus_space_handle_t, bus_size_t,
|
||||
bus_size_t, int);
|
||||
|
||||
#ifndef KCSAN_RUNTIME
|
||||
|
||||
#define bus_space_map kcsan_bus_space_map
|
||||
#define bus_space_unmap kcsan_bus_space_unmap
|
||||
#define bus_space_subregion kcsan_bus_space_subregion
|
||||
#define bus_space_alloc kcsan_bus_space_alloc
|
||||
#define bus_space_free kcsan_bus_space_free
|
||||
#define bus_space_barrier kcsan_bus_space_barrier
|
||||
|
||||
#define bus_space_read_1 kcsan_bus_space_read_1
|
||||
#define bus_space_read_stream_1 kcsan_bus_space_read_stream_1
|
||||
#define bus_space_read_multi_1 kcsan_bus_space_read_multi_1
|
||||
#define bus_space_read_multi_stream_1 kcsan_bus_space_read_multi_stream_1
|
||||
#define bus_space_read_region_1 kcsan_bus_space_read_region_1
|
||||
#define bus_space_read_region_stream_1 kcsan_bus_space_read_region_stream_1
|
||||
#define bus_space_write_1 kcsan_bus_space_write_1
|
||||
#define bus_space_write_stream_1 kcsan_bus_space_write_stream_1
|
||||
#define bus_space_write_multi_1 kcsan_bus_space_write_multi_1
|
||||
#define bus_space_write_multi_stream_1 kcsan_bus_space_write_multi_stream_1
|
||||
#define bus_space_write_region_1 kcsan_bus_space_write_region_1
|
||||
#define bus_space_write_region_stream_1 kcsan_bus_space_write_region_stream_1
|
||||
#define bus_space_set_multi_1 kcsan_bus_space_set_multi_1
|
||||
#define bus_space_set_multi_stream_1 kcsan_bus_space_set_multi_stream_1
|
||||
#define bus_space_set_region_1 kcsan_bus_space_set_region_1
|
||||
#define bus_space_set_region_stream_1 kcsan_bus_space_set_region_stream_1
|
||||
#define bus_space_copy_multi_1 kcsan_bus_space_copy_multi_1
|
||||
#define bus_space_copy_multi_stream_1 kcsan_bus_space_copy_multi_stream_1
|
||||
|
||||
#define bus_space_read_2 kcsan_bus_space_read_2
|
||||
#define bus_space_read_stream_2 kcsan_bus_space_read_stream_2
|
||||
#define bus_space_read_multi_2 kcsan_bus_space_read_multi_2
|
||||
#define bus_space_read_multi_stream_2 kcsan_bus_space_read_multi_stream_2
|
||||
#define bus_space_read_region_2 kcsan_bus_space_read_region_2
|
||||
#define bus_space_read_region_stream_2 kcsan_bus_space_read_region_stream_2
|
||||
#define bus_space_write_2 kcsan_bus_space_write_2
|
||||
#define bus_space_write_stream_2 kcsan_bus_space_write_stream_2
|
||||
#define bus_space_write_multi_2 kcsan_bus_space_write_multi_2
|
||||
#define bus_space_write_multi_stream_2 kcsan_bus_space_write_multi_stream_2
|
||||
#define bus_space_write_region_2 kcsan_bus_space_write_region_2
|
||||
#define bus_space_write_region_stream_2 kcsan_bus_space_write_region_stream_2
|
||||
#define bus_space_set_multi_2 kcsan_bus_space_set_multi_2
|
||||
#define bus_space_set_multi_stream_2 kcsan_bus_space_set_multi_stream_2
|
||||
#define bus_space_set_region_2 kcsan_bus_space_set_region_2
|
||||
#define bus_space_set_region_stream_2 kcsan_bus_space_set_region_stream_2
|
||||
#define bus_space_copy_multi_2 kcsan_bus_space_copy_multi_2
|
||||
#define bus_space_copy_multi_stream_2 kcsan_bus_space_copy_multi_stream_2
|
||||
|
||||
#define bus_space_read_4 kcsan_bus_space_read_4
|
||||
#define bus_space_read_stream_4 kcsan_bus_space_read_stream_4
|
||||
#define bus_space_read_multi_4 kcsan_bus_space_read_multi_4
|
||||
#define bus_space_read_multi_stream_4 kcsan_bus_space_read_multi_stream_4
|
||||
#define bus_space_read_region_4 kcsan_bus_space_read_region_4
|
||||
#define bus_space_read_region_stream_4 kcsan_bus_space_read_region_stream_4
|
||||
#define bus_space_write_4 kcsan_bus_space_write_4
|
||||
#define bus_space_write_stream_4 kcsan_bus_space_write_stream_4
|
||||
#define bus_space_write_multi_4 kcsan_bus_space_write_multi_4
|
||||
#define bus_space_write_multi_stream_4 kcsan_bus_space_write_multi_stream_4
|
||||
#define bus_space_write_region_4 kcsan_bus_space_write_region_4
|
||||
#define bus_space_write_region_stream_4 kcsan_bus_space_write_region_stream_4
|
||||
#define bus_space_set_multi_4 kcsan_bus_space_set_multi_4
|
||||
#define bus_space_set_multi_stream_4 kcsan_bus_space_set_multi_stream_4
|
||||
#define bus_space_set_region_4 kcsan_bus_space_set_region_4
|
||||
#define bus_space_set_region_stream_4 kcsan_bus_space_set_region_stream_4
|
||||
#define bus_space_copy_multi_4 kcsan_bus_space_copy_multi_4
|
||||
#define bus_space_copy_multi_stream_4 kcsan_bus_space_copy_multi_stream_4
|
||||
|
||||
#define bus_space_read_8 kcsan_bus_space_read_8
|
||||
#define bus_space_read_stream_8 kcsan_bus_space_read_stream_8
|
||||
#define bus_space_read_multi_8 kcsan_bus_space_read_multi_8
|
||||
#define bus_space_read_multi_stream_8 kcsan_bus_space_read_multi_stream_8
|
||||
#define bus_space_read_region_8 kcsan_bus_space_read_region_8
|
||||
#define bus_space_read_region_stream_8 kcsan_bus_space_read_region_stream_8
|
||||
#define bus_space_write_8 kcsan_bus_space_write_8
|
||||
#define bus_space_write_stream_8 kcsan_bus_space_write_stream_8
|
||||
#define bus_space_write_multi_8 kcsan_bus_space_write_multi_8
|
||||
#define bus_space_write_multi_stream_8 kcsan_bus_space_write_multi_stream_8
|
||||
#define bus_space_write_region_8 kcsan_bus_space_write_region_8
|
||||
#define bus_space_write_region_stream_8 kcsan_bus_space_write_region_stream_8
|
||||
#define bus_space_set_multi_8 kcsan_bus_space_set_multi_8
|
||||
#define bus_space_set_multi_stream_8 kcsan_bus_space_set_multi_stream_8
|
||||
#define bus_space_set_region_8 kcsan_bus_space_set_region_8
|
||||
#define bus_space_set_region_stream_8 kcsan_bus_space_set_region_stream_8
|
||||
#define bus_space_copy_multi_8 kcsan_bus_space_copy_multi_8
|
||||
#define bus_space_copy_multi_stream_8 kcsan_bus_space_copy_multi_stream_8
|
||||
|
||||
#endif /* !KCSAN_RUNTIME */
|
||||
|
||||
#endif /* !_SYS__CSAN_BUS_H_ */
|
||||
|
|
@ -27,23 +27,19 @@
|
|||
* 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.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#ifndef _SYS_CSAN_H_
|
||||
#define _SYS_CSAN_H_
|
||||
|
||||
#ifdef _KERNEL_OPT
|
||||
#include "opt_kcsan.h"
|
||||
#endif
|
||||
|
||||
#include <sys/types.h>
|
||||
|
||||
#ifdef KCSAN
|
||||
void kcsan_init(void);
|
||||
void kcsan_cpu_init(struct cpu_info *);
|
||||
void kcsan_cpu_init(u_int);
|
||||
#else
|
||||
#define kcsan_init() __nothing
|
||||
#define kcsan_cpu_init(ci) __nothing
|
||||
#define kcsan_cpu_init(ci) ((void)0)
|
||||
#endif
|
||||
|
||||
#endif /* !_SYS_CSAN_H_ */
|
||||
|
|
|
|||
|
|
@ -191,6 +191,15 @@ size_t strspn(const char *, const char *);
|
|||
char *strstr(const char *, const char *);
|
||||
int strvalid(const char *, size_t);
|
||||
|
||||
#ifdef KCSAN
|
||||
char *kcsan_strcpy(char *, const char *);
|
||||
int kcsan_strcmp(const char *, const char *);
|
||||
size_t kcsan_strlen(const char *);
|
||||
#define strcpy(d, s) kcsan_strcpy((d), (s))
|
||||
#define strcmp(s1, s2) kcsan_strcmp((s1), (s2))
|
||||
#define strlen(s) kcsan_strlen((s))
|
||||
#endif
|
||||
|
||||
static __inline char *
|
||||
index(const char *p, int ch)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -315,21 +315,36 @@ void hexdump(const void *ptr, int length, const char *hdr, int flags);
|
|||
|
||||
#define ovbcopy(f, t, l) bcopy((f), (t), (l))
|
||||
void bcopy(const void * _Nonnull from, void * _Nonnull to, size_t len);
|
||||
#define bcopy(from, to, len) __builtin_memmove((to), (from), (len))
|
||||
void bzero(void * _Nonnull buf, size_t len);
|
||||
#define bzero(buf, len) __builtin_memset((buf), 0, (len))
|
||||
void explicit_bzero(void * _Nonnull, size_t);
|
||||
int bcmp(const void *b1, const void *b2, size_t len);
|
||||
#define bcmp(b1, b2, len) __builtin_memcmp((b1), (b2), (len))
|
||||
|
||||
void *memset(void * _Nonnull buf, int c, size_t len);
|
||||
#define memset(buf, c, len) __builtin_memset((buf), (c), (len))
|
||||
void *memcpy(void * _Nonnull to, const void * _Nonnull from, size_t len);
|
||||
#define memcpy(to, from, len) __builtin_memcpy((to), (from), (len))
|
||||
void *memmove(void * _Nonnull dest, const void * _Nonnull src, size_t n);
|
||||
#define memmove(dest, src, n) __builtin_memmove((dest), (src), (n))
|
||||
int memcmp(const void *b1, const void *b2, size_t len);
|
||||
|
||||
#ifdef KCSAN
|
||||
void *kcsan_memset(void *, int, size_t);
|
||||
void *kcsan_memcpy(void *, const void *, size_t);
|
||||
void *kcsan_memmove(void *, const void *, size_t);
|
||||
int kcsan_memcmp(const void *, const void *, size_t);
|
||||
#define bcopy(from, to, len) kcsan_memmove((to), (from), (len))
|
||||
#define bzero(buf, len) kcsan_memset((buf), 0, (len))
|
||||
#define bcmp(b1, b2, len) kcsan_memcmp((b1), (b2), (len))
|
||||
#define memset(buf, c, len) kcsan_memset((buf), (c), (len))
|
||||
#define memcpy(to, from, len) kcsan_memcpy((to), (from), (len))
|
||||
#define memmove(dest, src, n) kcsan_memmove((dest), (src), (n))
|
||||
#define memcmp(b1, b2, len) kcsan_memcmp((b1), (b2), (len))
|
||||
#else
|
||||
#define bcopy(from, to, len) __builtin_memmove((to), (from), (len))
|
||||
#define bzero(buf, len) __builtin_memset((buf), 0, (len))
|
||||
#define bcmp(b1, b2, len) __builtin_memcmp((b1), (b2), (len))
|
||||
#define memset(buf, c, len) __builtin_memset((buf), (c), (len))
|
||||
#define memcpy(to, from, len) __builtin_memcpy((to), (from), (len))
|
||||
#define memmove(dest, src, n) __builtin_memmove((dest), (src), (n))
|
||||
#define memcmp(b1, b2, len) __builtin_memcmp((b1), (b2), (len))
|
||||
#endif
|
||||
|
||||
void *memset_early(void * _Nonnull buf, int c, size_t len);
|
||||
#define bzero_early(buf, len) memset_early((buf), 0, (len))
|
||||
|
|
@ -352,6 +367,17 @@ int copyout(const void * _Nonnull __restrict kaddr,
|
|||
int copyout_nofault(const void * _Nonnull __restrict kaddr,
|
||||
void * __restrict udaddr, size_t len);
|
||||
|
||||
#ifdef KCSAN
|
||||
int kcsan_copystr(const void *, void *, size_t, size_t *);
|
||||
int kcsan_copyin(const void *, void *, size_t);
|
||||
int kcsan_copyinstr(const void *, void *, size_t, size_t *);
|
||||
int kcsan_copyout(const void *, void *, size_t);
|
||||
#define copystr(kf, k, l, lc) kcsan_copystr((kf), (k), (l), (lc))
|
||||
#define copyin(u, k, l) kcsan_copyin((u), (k), (l))
|
||||
#define copyinstr(u, k, l, lc) kcsan_copyinstr((u), (k), (l), (lc))
|
||||
#define copyout(k, u, l) kcsan_copyout((k), (u), (l))
|
||||
#endif
|
||||
|
||||
int fubyte(volatile const void *base);
|
||||
long fuword(volatile const void *base);
|
||||
int fuword16(volatile const void *base);
|
||||
|
|
|
|||
|
|
@ -101,6 +101,7 @@
|
|||
|
||||
#include <machine/_bus.h>
|
||||
#include <machine/cpufunc.h>
|
||||
#include <machine/bus_dma.h>
|
||||
|
||||
#ifndef __GNUCLIKE_ASM
|
||||
#error "no assembler code for your compiler"
|
||||
|
|
@ -131,6 +132,13 @@
|
|||
#define BUS_SPACE_INVALID_DATA (~0)
|
||||
#define BUS_SPACE_UNRESTRICTED (~0)
|
||||
|
||||
#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
|
||||
#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
|
||||
|
||||
#if defined(KCSAN) && !defined(KCSAN_RUNTIME)
|
||||
#include <sys/_cscan_bus.h>
|
||||
#else
|
||||
|
||||
/*
|
||||
* Map a region of device bus space into CPU virtual address space.
|
||||
*/
|
||||
|
|
@ -992,9 +1000,6 @@ bus_space_copy_region_4(bus_space_tag_t tag, bus_space_handle_t bsh1,
|
|||
* prevent reordering by the compiler; all Intel x86 processors currently
|
||||
* retire operations outside the CPU in program order.
|
||||
*/
|
||||
#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
|
||||
#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
|
||||
|
||||
static __inline void
|
||||
bus_space_barrier(bus_space_tag_t tag __unused, bus_space_handle_t bsh __unused,
|
||||
bus_size_t offset __unused, bus_size_t len __unused, int flags)
|
||||
|
|
@ -1022,8 +1027,6 @@ bus_space_barrier(bus_space_tag_t tag __unused, bus_space_handle_t bsh __unused,
|
|||
#define outl(a, b) compiler_error
|
||||
#endif
|
||||
|
||||
#include <machine/bus_dma.h>
|
||||
|
||||
/*
|
||||
* Stream accesses are the same as normal accesses on x86; there are no
|
||||
* supported bus systems with an endianess different from the host one.
|
||||
|
|
@ -1088,4 +1091,6 @@ bus_space_barrier(bus_space_tag_t tag __unused, bus_space_handle_t bsh __unused,
|
|||
#define bus_space_copy_region_stream_4(t, h1, o1, h2, o2, c) \
|
||||
bus_space_copy_region_4((t), (h1), (o1), (h2), (o2), (c))
|
||||
|
||||
#endif /* KCSAN && !KCSAN_RUNTIME */
|
||||
|
||||
#endif /* _X86_BUS_H_ */
|
||||
|
|
|
|||
|
|
@ -24,6 +24,8 @@
|
|||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#define KCSAN_RUNTIME
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
|
|
|
|||
|
|
@ -41,6 +41,7 @@ __FBSDID("$FreeBSD$");
|
|||
#include <sys/bus.h>
|
||||
#include <sys/cons.h> /* cngetc() */
|
||||
#include <sys/cpuset.h>
|
||||
#include <sys/csan.h>
|
||||
#ifdef GPROF
|
||||
#include <sys/gmon.h>
|
||||
#endif
|
||||
|
|
@ -1080,6 +1081,8 @@ init_secondary_tail(void)
|
|||
cpu_initclocks_ap();
|
||||
#endif
|
||||
|
||||
kcsan_cpu_init(cpuid);
|
||||
|
||||
sched_throw(NULL);
|
||||
|
||||
panic("scheduler returned us to %s", __func__);
|
||||
|
|
|
|||
Loading…
Reference in a new issue