Lines Matching +full:debian +full:- +full:build +full:- +full:testing
1 # SPDX-License-Identifier: GPL-2.0-only
19 parameter printk.time=1. See Documentation/admin-guide/kernel-parameters.rst
39 bool "Show build ID information in stacktraces"
42 Selecting this option adds build ID information for symbols in
46 accessible but can be downloaded given the build ID of the vmlinux or
50 int "Default console loglevel (1-15)"
60 Note: This does not affect the log level of un-prefixed printk()
65 int "quiet console loglevel (1-15)"
76 int "Default message log level (1-7)"
82 This was hard-coded to KERN_WARNING since at least 2.6.10 but folks
94 This build option allows you to read kernel boot messages
118 enabled/disabled based on various levels of scope - per source file,
158 nullarbor:~ # echo -n 'file svcsock.c line 1603 +p' >
162 nullarbor:~ # echo -n 'file svcsock.c +p' >
166 nullarbor:~ # echo -n 'module nfsd +p' >
170 nullarbor:~ # echo -n 'func svc_process +p' >
174 nullarbor:~ # echo -n 'func svc_process -p' >
177 See Documentation/admin-guide/dynamic-debug-howto.rst for additional
207 debugging but costs about 70-100K of memory.
225 menu "Compile-time checks and compiler options"
232 information will be generated for build targets.
235 # older binutils ports do not support when utilizing RISC-V style linker
238 def_bool $(as-instr,.uleb128 .Lexpr_end4 - .Lexpr_start3\n.Lexpr_start3:\n.Lexpr_end4:)
246 This adds debug symbols to the kernel and modules (gcc -g), and
256 Do not build the kernel with debugging information, which will
257 result in a faster and smaller build.
268 support newer revisions, and prevent testing newer versions, but
290 5.0+ accepts the -gdwarf-5 flag but only had partial support for some
294 15-18% savings in resulting image and debug info section sizes as
313 build directory object sizes shrink dramatically over a full
314 DEBUG_INFO build and compile times are reduced too.
332 depends on $(cc-option,-gz=zlib)
333 depends on $(ld-option,--compress-debug-sections=zlib)
338 Users of dpkg-deb via debian/rules may find an increase in
347 depends on $(cc-option,-gz=zstd)
348 depends on $(ld-option,--compress-debug-sections=zstd)
359 depends on $(cc-option,-gsplit-dwarf)
360 # RISC-V linker relaxation + -gsplit-dwarf has issues with LLVM and GCC
362 # https://github.com/llvm/llvm-project/issues/56642
367 reduces the build directory size for builds with DEBUG_INFO,
406 Support for the --lang_exclude flag which makes pahole exclude
420 bool "Allow loading modules with non-matching BTF type info"
433 build directory. If you load vmlinux into gdb, the helper
436 instance. See Documentation/process/debugging/gdb-kernel-debugging.rst
452 Tell the compiler to warn at build time for stack frames larger than this.
457 bool "Strip assembler-generated symbols during link"
460 Strip internal assembler-generated symbols during a link (symbols
477 This option will install uapi headers (headers exported to user-space)
478 into the usr/include directory for use during the kernel build.
480 user-space program samples. It is also needed by some features such
496 kernel build, and enabling this option causes the following
498 - Add the option -fno-inline-functions-called-once to gcc commands.
499 When inlining a function annotated with __init in a non-init
506 bool "Make section mismatch errors non-fatal"
509 If you say N here, the build process will fail if there are any
551 Fail the build on objtool warnings.
559 bool "Compile-time stack metadata validation"
564 Validate frame pointer rules at compile-time. This helps ensure that
580 Selecting this option will pass "-Map=vmlinux.map" to ld
596 This option generates modules.builtin.ranges in the build tree with
602 bool "Force weak per-cpu definitions"
631 keys are documented in <file:Documentation/admin-guide/sysrq.rst>.
641 to a bitmask as described in Documentation/admin-guide/sysrq.rst.
682 debugfs=[on,no-mount,off]. The restrictions apply for API access
701 Access is off. Clients get -PERM when trying to create nodes in
703 Client can then back-off or continue without debugfs access.
743 properly. This can make kmalloc/kfree-intensive workloads
777 int "debug_objects bootup default value (0-1)"
797 task has ever had available in the sysrq-T and sysrq-P debug output.
819 build and run DEBUG_VM_PGTABLE.
837 Enable this to turn on extended checks in the virtual-memory system
862 bool "Debug VM red-black trees"
865 Enable VM red-black tree debugging information and extra validations.
870 bool "Debug page-flags operations"
920 on the mminit_loglevel= command-line option.
930 debugfs interface under /sys/kernel/debug/notifier-error-inject/memory
935 Example: Inject memory hotplug offline error (-12 == -ENOMEM)
937 # cd /sys/kernel/debug/notifier-error-inject/memory
938 # echo -12 > actions/MEM_GOING_OFFLINE/error
943 be called memory-notifier-error-inject.
975 mechanism for non-highmem pages and on non-highmem systems.
999 These kinds of bugs usually occur when call-chains in the
1129 high-availability systems that have uptime guarantees and
1140 # Global switch whether to build a hardlockup detector at all. It is available
1168 # Note that arch-specific variants are always preferred.
1183 an arch-specific hardlockup detector or if resources needed
1206 The arch-specific implementation of the hardlockup detector will
1256 to determine when a task has become non-responsive and should
1277 high-availability systems that have uptime guarantees and
1305 bool "Report per-cpu work items which hog CPU for too long"
1308 Say Y here to enable reporting of concurrency-managed per-cpu work
1312 them from stalling other per-cpu work items. Occassional
1326 Also it could generate series of lockups with cooling-down periods.
1359 if kernel code uses it in a preemption-unsafe way. Also, the kernel
1400 participant CPUs, tasks and irq-contexts would be needed
1413 and rwsems - in which case all dependencies between these
1418 For more details, see Documentation/locking/lockdep-design.rst.
1421 bool "Enable raw_spinlock - spinlock nesting checks" if !ARCH_SUPPORTS_RT
1459 bool "Spinlock and rw-lock debugging: basic checks"
1463 Say Y here and build SMP to catch missing spinlock initialization
1476 bool "Wait/wound mutex debugging: Slowpath testing"
1483 This feature enables slowpath testing for w/w mutex users by
1484 injecting additional -EDEADLK wound/backoff cases. Together with
1510 memory-freeing routines (kfree(), kmem_cache_free(), free_pages(),
1563 … Try increasing this value if you hit "lockdep bfs error:-1" warning due to __cq_enqueue() failure.
1586 bool "Locking API boot-time self-tests"
1589 Say Y here if you want the kernel to run a short self-test during
1590 bootup. The self-test checks whether common types of locking bugs
1605 Say Y here if you want kernel locking-primitive torture tests
1607 Say M if you want these torture tests to build as a module.
1619 Say M if you want these self tests to build as a module.
1757 Enable this to turn on extended checks in the linked-list walking
1770 Enable this to turn on extended checks in the priority-ordered
1771 linked-list (plist) walking routines. This checks the entire
1780 Enable this to turn on checks on scatter-gather tables. This can
1818 bool "Force round-robin CPU selection for unbound work items"
1827 round-robin CPU selection to flush out usages which depend on the
1896 in charge of the OHCI-1394 controllers should be used instead.
1898 See Documentation/core-api/debugging-via-ohci1394.rst for more information.
1930 io-memory regardless of whether a driver is actively using that
1935 userspace access to *idle* io-memory ranges (see /proc/iomem) This
1947 menu "Kernel Testing and Coverage"
1969 interface /sys/kernel/debug/notifier-error-inject/pm
1974 Example: Inject PM suspend error (-12 = -ENOMEM)
1976 # cd /sys/kernel/debug/notifier-error-inject/pm/
1977 # echo -12 > actions/PM_SUSPEND_PREPARE/error
1982 be called pm-notifier-error-inject.
1993 /sys/kernel/debug/notifier-error-inject/OF-reconfig/
1999 be called of-reconfig-notifier-error-inject.
2009 interface /sys/kernel/debug/notifier-error-inject/netdev
2014 Example: Inject netdevice mtu change error (-22 = -EINVAL)
2016 # cd /sys/kernel/debug/notifier-error-inject/netdev
2017 # echo -22 > actions/NETDEV_CHANGEMTU/error
2022 be called netdev-notifier-error-inject.
2027 bool "Fault-injections of functions"
2037 bool "Fault-injection framework"
2040 Provide fault-injection framework.
2041 For more details, see Documentation/fault-injection/.
2044 bool "Fault-injection capability for kmalloc"
2047 Provide fault-injection capability for kmalloc.
2050 bool "Fault-injection capability for alloc_pages()"
2053 Provide fault-injection capability for alloc_pages().
2059 Provides fault-injection capability to inject failures
2063 bool "Fault-injection capability for disk IO"
2066 Provide fault-injection capability for disk IO.
2069 bool "Fault-injection capability for faking disk interrupts"
2072 Provide fault-injection capability on end IO handling. This
2080 bool "Fault-injection capability for futexes"
2084 Provide fault-injection capability for futexes.
2087 bool "Debugfs entries for fault-injection capabilities"
2090 Enable configuration of fault-injection capabilities via debugfs.
2093 bool "Fault-injection capability for functions"
2096 Provide function-based fault-injection capability.
2103 bool "Fault-injection capability for MMC IO"
2106 Provide fault-injection capability for MMC IO.
2113 bool "Fault-injection capability for SunRPC"
2116 Provide fault-injection capability for SunRPC and
2120 bool "Fault-injection capability forcing skb to reallocate"
2123 Provide fault-injection capability that forces the skb to be
2127 Documentation/fault-injection/fault-injection.rst
2130 bool "Configfs interface for fault-injection capabilities"
2134 This option allows configfs-based drivers to dynamically configure
2135 fault-injection via configfs. Each parameter for driver-specific
2136 fault-injection can be made visible as a configfs attribute in a
2141 bool "stacktrace filter for fault-injection capabilities"
2147 Provide stacktrace filter for fault-injection capabilities
2153 build and run with CONFIG_KCOV. This typically requires
2157 def_bool $(cc-option,-fsanitize-coverage=trace-pc)
2171 for coverage-guided fuzzing (randomized testing).
2173 For more details, see Documentation/dev-tools/kcov.rst.
2178 depends on $(cc-option,-fsanitize-coverage=trace-cmp)
2201 KCOV uses preallocated per-cpu areas to collect coverage from
2214 bool "Runtime Testing"
2229 the kernel command line (when built-in), or from userspace (when
2230 built-in or modular).
2258 This module enables testing of the different dumping mechanisms by
2265 Documentation/fault-injection/provoke-crashes.rst
2275 to the KUnit documentation in Documentation/dev-tools/kunit/.
2301 tristate "Array-based sort test" if !KUNIT_ALL_TESTS
2305 This option enables the self-test function of 'sort()' at boot,
2336 Enable this to turn on testing of the operation of the I/O iterator
2350 This option provides for testing basic kprobes functionality on
2362 This option will enable testing the fprobe when the system boot.
2393 tristate "Red-Black tree test"
2400 tristate "Reed-Solomon library test"
2406 This option enables the self-test function of rslib at boot,
2422 Enable this option to build test module which validates per-cpu
2428 tristate "Perform an atomic64_t self-test"
2440 This is a one-shot self test that permutes through the
2442 N-disk array. Recovery is performed with the asynchronous
2525 production build.
2528 to the KUnit documentation in Documentation/dev-tools/kunit/.
2568 no compiler warnings from C=1 sparse checker or -Wextra
2613 interface for testing firmware loading. This can be used to
2615 actual firmware-using device. The contents can be rechecked by
2640 production build.
2643 to the KUnit documentation in Documentation/dev-tools/kunit/.
2657 production build.
2660 to the KUnit documentation in Documentation/dev-tools/kunit/.
2674 production build.
2677 to the KUnit documentation in Documentation/dev-tools/kunit/.
2692 production build.
2695 to the KUnit documentation in Documentation/dev-tools/kunit/.
2697 This is intended to help people writing architecture-specific
2709 to the KUnit documentation in Documentation/dev-tools/kunit/.
2721 to the KUnit documentation in Documentation/dev-tools/kunit/.
2735 to the KUnit documentation in Documentation/dev-tools/kunit/.
2740 tristate "KUnit Test for Kernel Linked-list structures" if !KUNIT_ALL_TESTS
2751 production build.
2754 to the KUnit documentation in Documentation/dev-tools/kunit/.
2767 in Documentation/dev-tools/kunit/.
2779 to the KUnit documentation in Documentation/dev-tools/kunit/.
2791 to the KUnit documentation in Documentation/dev-tools/kunit/.
2803 to the KUnit documentation in Documentation/dev-tools/kunit/.
2815 to the KUnit documentation in Documentation/dev-tools/kunit/.
2826 to the KUnit documentation in Documentation/dev-tools/kunit/.
2837 to the KUnit documentation in Documentation/dev-tools/kunit/.
2849 to the KUnit documentation in Documentation/dev-tools/kunit/.
2862 to the KUnit documentation in Documentation/dev-tools/kunit/.
2871 Test if the kernel is zero-initializing stack variables and
2883 by the str*() and mem*() family of functions. For testing runtime
2917 This is intended to help people writing architecture-specific
2934 This is intended to help people writing architecture-specific
2944 user/kernel boundary testing is working.
2998 Although technically you can either build test_kmod as a module or
3006 tools/testing/selftests/kmod/kmod.sh --help
3063 tools/testing/selftests/module/find_symbol.sh
3065 The current defaults will incur a build delay of about 7 minutes
3071 will segfault the build system.
3098 down the build and may crash your build.
3103 You won't really be testing kallsysms, so this just helps fast builds
3107 bool "Enable testing kallsyms with large exports"
3110 your build considerably.
3132 you are aware that this should not be used for automated build tests.
3150 virt_to_phys() done against the non-linear part of the
3174 Test if the kernel is zero-initializing heap and page allocations.
3186 This is a pseudo device driver solely for testing HMM.
3187 Say M here if you want to build the HMM test module.
3188 Doing so will allow you to run tools/testing/selftest/vm/hmm-tests.
3207 for self-testing floating point control register setting in
3318 memtest=0, mean disabled; -- default
3327 bool "Microsoft Hyper-V driver testing"
3331 Select this option to enable Hyper-V vmbus testing.
3333 endmenu # "Kernel Testing and Coverage"
3341 Enables rustc's `-Cdebug-assertions` codegen option.
3357 Enables rustc's `-Coverflow-checks` codegen option.
3360 overflow. When overflow-checks are enabled, a Rust panic will occur
3368 bool "Allow unoptimized build-time assertions"
3371 Controls how `build_error!` and `build_assert!` are handled during the build.
3376 This should not happen, thus by default the build is aborted. However,
3377 as an escape hatch, you can choose Y here to ignore them during build
3392 please refer to the KUnit documentation in Documentation/dev-tools/kunit/.