diff options
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 118 |
1 files changed, 23 insertions, 95 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 075cd25363ac..2e24db4bff19 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -485,24 +485,25 @@ config FRAME_POINTER larger and slower, but it gives very useful debugging information in case of kernel bugs. (precise oopses/stacktraces/warnings) +config OBJTOOL + bool + config STACK_VALIDATION bool "Compile-time stack metadata validation" - depends on HAVE_STACK_VALIDATION + depends on HAVE_STACK_VALIDATION && UNWINDER_FRAME_POINTER + select OBJTOOL default n help - Add compile-time checks to validate stack metadata, including frame - pointers (if CONFIG_FRAME_POINTER is enabled). This helps ensure - that runtime stack traces are more reliable. - - This is also a prerequisite for generation of ORC unwind data, which - is needed for CONFIG_UNWINDER_ORC. + Validate frame pointer rules at compile-time. This helps ensure that + runtime stack traces are more reliable. For more information, see tools/objtool/Documentation/stack-validation.txt. -config VMLINUX_VALIDATION +config NOINSTR_VALIDATION bool - depends on STACK_VALIDATION && DEBUG_ENTRY + depends on HAVE_NOINSTR_VALIDATION && DEBUG_ENTRY + select OBJTOOL default y config VMLINUX_MAP @@ -698,40 +699,6 @@ config DEBUG_OBJECTS_ENABLE_DEFAULT help Debug objects boot parameter default value -config DEBUG_SLAB - bool "Debug slab memory allocations" - depends on DEBUG_KERNEL && SLAB - help - Say Y here to have the kernel do limited verification on memory - allocation as well as poisoning memory on free to catch use of freed - memory. This can make kmalloc/kfree-intensive workloads much slower. - -config SLUB_DEBUG_ON - bool "SLUB debugging on by default" - depends on SLUB && SLUB_DEBUG - default n - help - Boot with debugging on by default. SLUB boots by default with - the runtime debug capabilities switched off. Enabling this is - equivalent to specifying the "slub_debug" parameter on boot. - There is no support for more fine grained debug control like - possible with slub_debug=xxx. SLUB debugging may be switched - off in a kernel built with CONFIG_SLUB_DEBUG_ON by specifying - "slub_debug=-". - -config SLUB_STATS - default n - bool "Enable SLUB performance statistics" - depends on SLUB && SYSFS - help - SLUB statistics are useful to debug SLUBs allocation behavior in - order find ways to optimize the allocator. This should never be - enabled for production use since keeping statistics slows down - the allocator by a few percentage points. The slabinfo command - supports the determination of the most active slabs to figure - out which slabs are relevant to a particular load. - Try running: slabinfo -DA - config HAVE_DEBUG_KMEMLEAK bool @@ -1071,13 +1038,6 @@ config BOOTPARAM_SOFTLOCKUP_PANIC Say N if unsure. -config BOOTPARAM_SOFTLOCKUP_PANIC_VALUE - int - depends on SOFTLOCKUP_DETECTOR - range 0 1 - default 0 if !BOOTPARAM_SOFTLOCKUP_PANIC - default 1 if BOOTPARAM_SOFTLOCKUP_PANIC - config HARDLOCKUP_DETECTOR_PERF bool select SOFTLOCKUP_DETECTOR @@ -1119,13 +1079,6 @@ config BOOTPARAM_HARDLOCKUP_PANIC Say N if unsure. -config BOOTPARAM_HARDLOCKUP_PANIC_VALUE - int - depends on HARDLOCKUP_DETECTOR - range 0 1 - default 0 if !BOOTPARAM_HARDLOCKUP_PANIC - default 1 if BOOTPARAM_HARDLOCKUP_PANIC - config DETECT_HUNG_TASK bool "Detect Hung Tasks" depends on DEBUG_KERNEL @@ -1173,13 +1126,6 @@ config BOOTPARAM_HUNG_TASK_PANIC Say N if unsure. -config BOOTPARAM_HUNG_TASK_PANIC_VALUE - int - depends on DETECT_HUNG_TASK - range 0 1 - default 0 if !BOOTPARAM_HUNG_TASK_PANIC - default 1 if BOOTPARAM_HUNG_TASK_PANIC - config WQ_WATCHDOG bool "Detect Workqueue Stalls" depends on DEBUG_KERNEL @@ -1544,29 +1490,6 @@ config CSD_LOCK_WAIT_DEBUG include the IPI handler function currently executing (if any) and relevant stack traces. -choice - prompt "Lock debugging: prove subsystem device_lock() correctness" - depends on PROVE_LOCKING - help - For subsystems that have instrumented their usage of the device_lock() - with nested annotations, enable lock dependency checking. The locking - hierarchy 'subclass' identifiers are not compatible across - sub-systems, so only one can be enabled at a time. - -config PROVE_NVDIMM_LOCKING - bool "NVDIMM" - depends on LIBNVDIMM - help - Enable lockdep to validate nd_device_lock() usage. - -config PROVE_CXL_LOCKING - bool "CXL" - depends on CXL_BUS - help - Enable lockdep to validate cxl_device_lock() usage. - -endchoice - endmenu # lock debugging config TRACE_IRQFLAGS @@ -1616,8 +1539,7 @@ config WARN_ALL_UNSEEDED_RANDOM so architecture maintainers really need to do what they can to get the CRNG seeded sooner after the system is booted. However, since users cannot do anything actionable to - address this, by default the kernel will issue only a single - warning for the first use of unseeded randomness. + address this, by default this option is disabled. Say Y here if you want to receive warnings for all uses of unseeded randomness. This will be of use primarily for @@ -2035,10 +1957,11 @@ config KCOV bool "Code coverage for fuzzing" depends on ARCH_HAS_KCOV depends on CC_HAS_SANCOV_TRACE_PC || GCC_PLUGINS - depends on !ARCH_WANTS_NO_INSTR || STACK_VALIDATION || \ + depends on !ARCH_WANTS_NO_INSTR || HAVE_NOINSTR_HACK || \ GCC_VERSION >= 120000 || CLANG_VERSION >= 130000 select DEBUG_FS select GCC_PLUGIN_SANCOV if !CC_HAS_SANCOV_TRACE_PC + select OBJTOOL if HAVE_NOINSTR_HACK help KCOV exposes kernel code coverage information in a form suitable for coverage-guided fuzzing (randomized testing). @@ -2140,10 +2063,11 @@ config TEST_DIV64 If unsure, say N. config KPROBES_SANITY_TEST - tristate "Kprobes sanity tests" + tristate "Kprobes sanity tests" if !KUNIT_ALL_TESTS depends on DEBUG_KERNEL depends on KPROBES depends on KUNIT + default KUNIT_ALL_TESTS help This option provides for testing basic kprobes functionality on boot. Samples of kprobe and kretprobe are inserted and @@ -2417,8 +2341,9 @@ config TEST_SYSCTL If unsure, say N. config BITFIELD_KUNIT - tristate "KUnit test bitfield functions at runtime" + tristate "KUnit test bitfield functions at runtime" if !KUNIT_ALL_TESTS depends on KUNIT + default KUNIT_ALL_TESTS help Enable this option to test the bitfield functions at boot. @@ -2452,8 +2377,9 @@ config HASH_KUNIT_TEST optimized versions. If unsure, say N. config RESOURCE_KUNIT_TEST - tristate "KUnit test for resource API" + tristate "KUnit test for resource API" if !KUNIT_ALL_TESTS depends on KUNIT + default KUNIT_ALL_TESTS help This builds the resource API unit test. Tests the logic of API provided by resource.c and ioport.h. @@ -2506,8 +2432,9 @@ config LINEAR_RANGES_TEST If unsure, say N. config CMDLINE_KUNIT_TEST - tristate "KUnit test for cmdline API" + tristate "KUnit test for cmdline API" if !KUNIT_ALL_TESTS depends on KUNIT + default KUNIT_ALL_TESTS help This builds the cmdline API unit test. Tests the logic of API provided by cmdline.c. @@ -2517,8 +2444,9 @@ config CMDLINE_KUNIT_TEST If unsure, say N. config BITS_TEST - tristate "KUnit test for bits.h" + tristate "KUnit test for bits.h" if !KUNIT_ALL_TESTS depends on KUNIT + default KUNIT_ALL_TESTS help This builds the bits unit test. Tests the logic of macros defined in bits.h. |