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Stephen Boyd
5ca43f6c3b
Most arches define CONFIG_DEBUG_STACK_USAGE exactly the same way. Move it to lib/Kconfig.debug so each arch doesn't have to define it. This obviously makes the option generic, but that's fine because the config is already used in generic code. It's not obvious to me that sysrq-P actually does anything caution by keeping the most inclusive wording. Signed-off-by: Stephen Boyd <[email protected]> Cc: Chris Metcalf <[email protected]> Acked-by: David S. Miller <[email protected]> Acked-by: Richard Weinberger <[email protected]> Acked-by: Mike Frysinger <[email protected]> Cc: Russell King <[email protected]> Cc: Hirokazu Takata <[email protected]> Acked-by: Ralf Baechle <[email protected]> Cc: Paul Mackerras <[email protected]> Acked-by: Benjamin Herrenschmidt <[email protected]> Cc: Chen Liqin <[email protected]> Cc: Lennox Wu <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
35 lines
1.0 KiB
Plaintext
35 lines
1.0 KiB
Plaintext
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 EXPERT && 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_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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