diff options
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 136 |
1 files changed, 117 insertions, 19 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 3638b3424be5..1dd4bd7dc271 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -312,8 +312,21 @@ config DEBUG_INFO_REDUCED DEBUG_INFO build and compile times are reduced too. Only works with newer gcc versions. -config DEBUG_INFO_COMPRESSED - bool "Compressed debugging information" +choice + prompt "Compressed Debug information" + help + Compress the resulting debug info. Results in smaller debug info sections, + but requires that consumers are able to decompress the results. + + If unsure, choose DEBUG_INFO_COMPRESSED_NONE. + +config DEBUG_INFO_COMPRESSED_NONE + bool "Don't compress debug information" + help + Don't compress debug info sections. + +config DEBUG_INFO_COMPRESSED_ZLIB + bool "Compress debugging information with zlib" depends on $(cc-option,-gz=zlib) depends on $(ld-option,--compress-debug-sections=zlib) help @@ -327,6 +340,18 @@ config DEBUG_INFO_COMPRESSED preferable to setting $KDEB_COMPRESS to "none" which would be even larger. +config DEBUG_INFO_COMPRESSED_ZSTD + bool "Compress debugging information with zstd" + depends on $(cc-option,-gz=zstd) + depends on $(ld-option,--compress-debug-sections=zstd) + help + Compress the debug information using zstd. This may provide better + compression than zlib, for about the same time costs, but requires newer + toolchain support. Requires GCC 13.0+ or Clang 16.0+, binutils 2.40+, and + zstd. + +endchoice # "Compressed Debug information" + config DEBUG_INFO_SPLIT bool "Produce split debuginfo in .dwo files" depends on $(cc-option,-gsplit-dwarf) @@ -364,6 +389,15 @@ config PAHOLE_HAS_BTF_TAG btf_decl_tag) or not. Currently only clang compiler implements these attributes, so make the config depend on CC_IS_CLANG. +config PAHOLE_HAS_LANG_EXCLUDE + def_bool PAHOLE_VERSION >= 124 + help + Support for the --lang_exclude flag which makes pahole exclude + compilation units from the supplied language. Used in Kbuild to + omit Rust CUs which are not supported in version 1.24 of pahole, + otherwise it would emit malformed kernel and module binaries when + using DEBUG_INFO_BTF_MODULES. + config DEBUG_INFO_BTF_MODULES def_bool y depends on DEBUG_INFO_BTF && MODULES && PAHOLE_HAS_SPLIT_BTF @@ -469,6 +503,7 @@ config SECTION_MISMATCH_WARN_ONLY config DEBUG_FORCE_FUNCTION_ALIGN_64B bool "Force all function address 64B aligned" depends on EXPERT && (X86_64 || ARM64 || PPC32 || PPC64 || ARC) + select FUNCTION_ALIGNMENT_64B help There are cases that a commit from one domain changes the function address alignment of other domains, and cause magic performance @@ -727,6 +762,8 @@ config DEBUG_KMEMLEAK select STACKTRACE if STACKTRACE_SUPPORT select KALLSYMS select CRC32 + select STACKDEPOT + select STACKDEPOT_ALWAYS_INIT if !DEBUG_KMEMLEAK_DEFAULT_OFF help Say Y here if you want to enable the memory leak detector. The memory allocation/freeing is traced in a way @@ -1180,7 +1217,7 @@ config SCHED_DEBUG depends on DEBUG_KERNEL && PROC_FS default y help - If you say Y here, the /proc/sched_debug file will be provided + If you say Y here, the /sys/kernel/debug/sched file will be provided that can help debug the scheduler. The runtime overhead of this option is minimal. @@ -1525,6 +1562,17 @@ config TRACE_IRQFLAGS_NMI depends on TRACE_IRQFLAGS depends on TRACE_IRQFLAGS_NMI_SUPPORT +config NMI_CHECK_CPU + bool "Debugging for CPUs failing to respond to backtrace requests" + depends on DEBUG_KERNEL + depends on X86 + default n + help + Enables debug prints when a CPU fails to respond to a given + backtrace NMI. These prints provide some reasons why a CPU + might legitimately be failing to respond, for example, if it + is offline of if ignore_nmis is set. + config DEBUG_IRQFLAGS bool "Debug IRQ flag manipulation" help @@ -1717,6 +1765,16 @@ config LATENCYTOP Enable this option if you want to use the LatencyTOP tool to find out which userspace is blocking on what kernel operations. +config DEBUG_CGROUP_REF + bool "Disable inlining of cgroup css reference count functions" + depends on DEBUG_KERNEL + depends on CGROUPS + depends on KPROBES + default n + help + Force cgroup css reference count functions to not be inlined so + that they can be kprobed for debugging. + source "kernel/trace/Kconfig" config PROVIDE_OHCI1394_DMA_INIT @@ -1880,7 +1938,7 @@ config FUNCTION_ERROR_INJECTION help Add fault injections into various functions that are annotated with ALLOW_ERROR_INJECTION() in the kernel. BPF may also modify the return - value of theses functions. This is useful to test error paths of code. + value of these functions. This is useful to test error paths of code. If unsure, say N @@ -1971,7 +2029,6 @@ config FAIL_SUNRPC config FAULT_INJECTION_STACKTRACE_FILTER bool "stacktrace filter for fault-injection capabilities" depends on FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT - depends on !X86_64 select STACKTRACE depends on FRAME_POINTER || MIPS || PPC || S390 || MICROBLAZE || ARM || ARC || X86 help @@ -2224,9 +2281,6 @@ config STRING_SELFTEST config TEST_STRING_HELPERS tristate "Test functions located in the string_helpers module at runtime" -config TEST_STRSCPY - tristate "Test strscpy*() family of functions at runtime" - config TEST_KSTRTOX tristate "Test kstrto*() family of functions at runtime" @@ -2250,6 +2304,7 @@ config TEST_XARRAY tristate "Test the XArray code at runtime" config TEST_MAPLE_TREE + depends on DEBUG_KERNEL select DEBUG_MAPLE_TREE tristate "Test the Maple Tree code at runtime" @@ -2260,15 +2315,6 @@ config TEST_RHASHTABLE If unsure, say N. -config TEST_SIPHASH - tristate "Perform selftest on siphash functions" - help - Enable this option to test the kernel's siphash (<linux/siphash.h>) hash - functions on boot (or module load). - - This is intended to help people writing architecture-specific - optimized versions. If unsure, say N. - config TEST_IDA tristate "Perform selftest on IDA functions" @@ -2471,6 +2517,19 @@ config LIST_KUNIT_TEST If unsure, say N. +config HASHTABLE_KUNIT_TEST + tristate "KUnit Test for Kernel Hashtable structures" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS + help + This builds the hashtable KUnit test suite. + It tests the basic functionality of the API defined in + include/linux/hashtable.h. For more information on KUnit and + unit tests in general please refer to the KUnit documentation + in Documentation/dev-tools/kunit/. + + If unsure, say N. + config LINEAR_RANGES_TEST tristate "KUnit test for linear_ranges" depends on KUNIT @@ -2541,6 +2600,15 @@ config MEMCPY_KUNIT_TEST If unsure, say N. +config MEMCPY_SLOW_KUNIT_TEST + bool "Include exhaustive memcpy tests" + depends on MEMCPY_KUNIT_TEST + default y + help + Some memcpy tests are quite exhaustive in checking for overlaps + and bit ranges. These can be very slow, so they are split out + as a separate config, in case they need to be disabled. + config IS_SIGNED_TYPE_KUNIT_TEST tristate "Test is_signed_type() macro" if !KUNIT_ALL_TESTS depends on KUNIT @@ -2596,6 +2664,22 @@ config HW_BREAKPOINT_KUNIT_TEST If unsure, say N. +config STRSCPY_KUNIT_TEST + tristate "Test strscpy*() family of functions at runtime" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS + +config SIPHASH_KUNIT_TEST + tristate "Perform selftest on siphash functions" if !KUNIT_ALL_TESTS + depends on KUNIT + default KUNIT_ALL_TESTS + help + Enable this option to test the kernel's siphash (<linux/siphash.h>) hash + functions on boot (or module load). + + This is intended to help people writing architecture-specific + optimized versions. If unsure, say N. + config TEST_UDELAY tristate "udelay test driver" help @@ -2813,8 +2897,22 @@ config RUST_OVERFLOW_CHECKS If unsure, say Y. -endmenu # "Rust" +config RUST_BUILD_ASSERT_ALLOW + bool "Allow unoptimized build-time assertions" + depends on RUST + help + Controls how are `build_error!` and `build_assert!` handled during build. + + If calls to them exist in the binary, it may indicate a violated invariant + or that the optimizer failed to verify the invariant during compilation. + + This should not happen, thus by default the build is aborted. However, + as an escape hatch, you can choose Y here to ignore them during build + and let the check be carried at runtime (with `panic!` being called if + the check fails). -source "Documentation/Kconfig" + If unsure, say N. + +endmenu # "Rust" endmenu # Kernel hacking |