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arch/mips/Kconfig.debug
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menu "Kernel hacking" |
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config TRACE_IRQFLAGS_SUPPORT bool default y |
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source "lib/Kconfig.debug" |
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config EARLY_PRINTK |
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bool "Early printk" if EXPERT |
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depends on SYS_HAS_EARLY_PRINTK default y help This option enables special console drivers which allow the kernel to print messages very early in the bootup process. This is useful for kernel debugging when your machine crashes very early before the console code is initialized. For normal operation, it is not recommended because it looks ugly on some machines and doesn't cooperate with an X server. You should normally say N here, unless you want to debug such a crash. |
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config CMDLINE_BOOL bool "Built-in kernel command line" default n help For most systems, it is firmware or second stage bootloader that by default specifies the kernel command line options. However, it might be necessary or advantageous to either override the default kernel command line or add a few extra options to it. For such cases, this option allows you to hardcode your own command line options directly into the kernel. For that, you should choose 'Y' here, and fill in the extra boot arguments in CONFIG_CMDLINE. The built-in options will be concatenated to the default command line if CMDLINE_OVERRIDE is set to 'N'. Otherwise, the default command line will be ignored and replaced by the built-in string. Most MIPS systems will normally expect 'N' here and rely upon the command line from the firmware or the second-stage bootloader. |
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config CMDLINE string "Default kernel command string" |
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depends on CMDLINE_BOOL |
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default "" help |
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On some platforms, there is currently no way for the boot loader to |
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pass arguments to the kernel. For these platforms, and for the cases when you want to add some extra options to the command line or ignore the default command line, you can supply some command-line options at build time by entering them here. In other cases you can specify kernel args so that you don't have to set them up in board prom initialization routines. For more information, see the CMDLINE_BOOL and CMDLINE_OVERRIDE options. config CMDLINE_OVERRIDE bool "Built-in command line overrides firware arguments" default n depends on CMDLINE_BOOL help By setting this option to 'Y' you will have your kernel ignore command line arguments from firmware or second stage bootloader. Instead, the built-in command line will be used exclusively. Normally, you will choose 'N' here. |
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config DEBUG_STACKOVERFLOW bool "Check for stack overflows" depends on DEBUG_KERNEL help This option will cause messages to be printed if free stack space drops below a certain limit(2GB on MIPS). The debugging option provides another way to check stack overflow happened on kernel mode stack usually caused by nested interruption. |
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config SMTC_IDLE_HOOK_DEBUG |
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bool "Enable additional debug checks before going into CPU idle loop" depends on DEBUG_KERNEL && MIPS_MT_SMTC help This option enables Enable additional debug checks before going into CPU idle loop. For details on these checks, see arch/mips/kernel/smtc.c. This debugging option result in significant overhead so should be disabled in production kernels. |
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config SB1XXX_CORELIS bool "Corelis Debugger" depends on SIBYTE_SB1xxx_SOC select DEBUG_INFO help Select compile flags that produce code that can be processed by the Corelis mksym utility and UDB Emulator. config RUNTIME_DEBUG bool "Enable run-time debugging" depends on DEBUG_KERNEL help If you say Y here, some debugging macros will do run-time checking. If you say N here, those macros will mostly turn to no-ops. See |
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arch/mips/include/asm/debug.h for debugging macros. |
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If unsure, say N. |
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config DEBUG_ZBOOT bool "Enable compressed kernel support debugging" depends on DEBUG_KERNEL && SYS_SUPPORTS_ZBOOT default n help If you want to add compressed kernel support to a new board, and the board supports uart16550 compatible serial port, please select SYS_SUPPORTS_ZBOOT_UART16550 for your board and enable this option to debug it. If your board doesn't support uart16550 compatible serial port, you can try to select SYS_SUPPORTS_ZBOOT and use the other methods to debug it. for example, add a new serial port support just as arch/mips/boot/compressed/uart-16550.c does. After the compressed kernel support works, please disable this option to reduce the kernel image size and speed up the booting procedure a little. |
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config SPINLOCK_TEST bool "Enable spinlock timing tests in debugfs" depends on DEBUG_FS default n help Add several files to the debugfs to test spinlock speed. |
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