mirror of https://gitee.com/openkylin/linux.git
44 lines
1.3 KiB
Plaintext
44 lines
1.3 KiB
Plaintext
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menu "Kernel hacking"
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source "lib/Kconfig.debug"
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config EARLY_PRINTK
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bool "Early printk" if EMBEDDED && DEBUG_KERNEL
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default y
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help
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Write kernel log output directly via the hypervisor console.
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This is useful for kernel debugging when your machine crashes very
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early before the console code is initialized. For normal operation
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it is not recommended because it looks ugly and doesn't cooperate
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with klogd/syslogd. You should normally N here,
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unless you want to debug such a crash.
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config DEBUG_STACKOVERFLOW
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bool "Check for stack overflows"
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depends on DEBUG_KERNEL
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help
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This option will cause messages to be printed if free stack space
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drops below a certain limit.
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config DEBUG_STACK_USAGE
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bool "Stack utilization instrumentation"
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depends on DEBUG_KERNEL
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help
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Enables the display of the minimum amount of free stack which each
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task has ever had available in the sysrq-T and sysrq-P debug output.
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This option will slow down process creation somewhat.
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config DEBUG_EXTRA_FLAGS
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string "Additional compiler arguments when building with '-g'"
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depends on DEBUG_INFO
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default ""
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help
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Debug info can be large, and flags like
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`-femit-struct-debug-baseonly' can reduce the kernel file
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size and build time noticeably. Such flags are often
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helpful if the main use of debug info is line number info.
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endmenu
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