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* sys: Automated cleanup of cdefs and other formattingWarner Losh2023-11-271-1/+0
| | | | | | | | | | | | | | | | Apply the following automated changes to try to eliminate no-longer-needed sys/cdefs.h includes as well as now-empty blank lines in a row. Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/ Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/ Remove /\n+#if.*\n#endif.*\n+/ Remove /^#if.*\n#endif.*\n/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/ Sponsored by: Netflix
* sys: Remove $FreeBSD$: one-line .c patternWarner Losh2023-08-161-2/+0
| | | | Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
* sys: Remove $FreeBSD$: two-line .h patternWarner Losh2023-08-161-2/+0
| | | | Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
* spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSDWarner Losh2023-05-121-1/+1
| | | | | | | | | The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
* kcov: Integrate with KMSANMark Johnston2021-09-141-1/+1
| | | | | | | | | | | | | - kern_kcov.c needs to be compiled with -fsanitize=kernel-memory when KMSAN is configured since it calls into various other subsystems. - Disable address and memory sanitizers in kcov(4)'s coverage sanitizer callbacks, as they do not provide useful checking. Moreover, with KMSAN we may otherwise get false positives since the caller (coverage sanitizer runtime) is not instrumented. - Disable KASAN and KMSAN interceptors in subr_coverage.c, as they do not provide any benefit but do introduce overhead when fuzzing. Sponsored by: The FreeBSD Foundation
* Generalize bus_space(9) and atomic(9) sanitizer interceptorsMark Johnston2021-03-231-1/+3
| | | | | | | | | | | | | | | | | Make it easy to define interceptors for new sanitizer runtimes, rather than assuming KCSAN. Lay a bit of groundwork for KASAN and KMSAN. When a sanitizer is compiled in, atomic(9) and bus_space(9) definitions in atomic_san.h are used by default instead of the inline implementations in the platform's atomic.h. These definitions are implemented in the sanitizer runtime, which includes machine/{atomic,bus}.h with SAN_RUNTIME defined to pull in the actual implementations. No functional change intended. MFC after: 1 month Sponsored by: The FreeBSD Foundation
* Mark COVERAGE and KCOV as part of KCSANAndrew Turner2020-08-191-0/+2
| | | | | | | | | | While not strictly true this stops them from trying to use the KCSAN atomic hooks and allows these to be compiled into the same kernel. Sponsored by: Innovate UK Notes: svn path=/head/; revision=364393
* kcov: remove no longer needed atomic_load_ptr castsMateusz Guzik2020-02-141-10/+10
| | | | Notes: svn path=/head/; revision=357945
* Extract the coverage sanitizer KPI to a new file.Andrew Turner2019-01-291-0/+237
This will allow multiple consumers of the coverage data to be compiled into the kernel together. The only requirement is only one can be registered at a given point in time, however it is expected they will only register when the coverage data is needed. A new kernel conflig option COVERAGE is added. This will allow kcov to become a module that can be loaded as needed, or compiled into the kernel. While here clean up the #include style a little. Reviewed by: kib Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D18955 Notes: svn path=/head/; revision=343550
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