117 lines
3.3 KiB
Text
117 lines
3.3 KiB
Text
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mainmenu "Tiny Mountain Build Options"
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source "kernel/Kconfig"
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source "misc/Kconfig"
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source "arch/Kconfig"
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menu "Debugging Options"
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config STDOUT_CONSOLE
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bool
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prompt "Send stdout to console"
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default n
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help
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This option directs standard output (e.g. printf) to the console
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device, rather than suppressing in entirely.
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config ASSERT
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bool
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prompt "Enable __ASSERT() macro"
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default n
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help
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This enables the __ASSERT() macro in the kernel code. If an assertion
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fails, the calling thread is put on an infinite tight loop. Since
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enabling this adds a significant footprint, it should only be enabled
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in a non-production system.
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config ASSERT_LEVEL
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int
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prompt "__ASSERT() level"
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default 1
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depends on ASSERT
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help
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This option specifies the assertion level used by the __ASSERT()
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macro. It can be set to one of three possible values:
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Level 0: off
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Level 1: on + warning in every file that includes __assert.h
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Level 2: on + no warning
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endmenu
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menu "System Monitoring Options"
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config BOOT_TIME_MEASUREMENT
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bool
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prompt "Boot time measurements [EXPERIMENTAL]"
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default n
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depends on EXPERIMENTAL
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help
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This option enables the recording of timestamps during system start
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up. The global variable __start_tsc records the time TiMo begins
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executing, while __main_tsc records when main() begins executing,
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and __idle_tsc records when the CPU becomes idle. All values are
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recorded in terms of CPU clock cycles since system reset.
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config CPU_CLOCK_FREQ_MHZ
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int
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prompt "CPU CLock Frequency in MHz"
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default 20
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depends on BOOT_TIME_MEASUREMENT
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help
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This option specifies the CPU Clock Frequency in MHz in order to
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convert Intel RDTSC timestamp to microseconds.
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endmenu
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menu "Compile and Link Features"
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config COMPILER_OPT
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string
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prompt "Custom compiler options"
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default ""
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help
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This option is a free-form string that is passed to the compiler
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when building all parts of a project (i.e. kernel, LKMs, and USAPs).
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The compiler options specified by this string supplement the
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pre-defined set of compiler supplied by the TiMo build system,
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and can be used to change compiler optimization, warning and error
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messages, and so on.
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A given LKM or USAP can override this setting by means of the
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OVERRIDE_COMPILER_OPT make variable in its Makefile.
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config SECTION_GARBAGE_COLLECTION
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bool
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prompt "ELF section garbage collection"
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default y
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help
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This option enables the compiler to place each function and data
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item into its own ELF section, which then allows the linker to
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discard any sections that are not directly referenced. Enabling
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this option should significantly reduce the final image size,
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especially in situations when only a relatively few number of
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APIs in the object modules are actually referenced.
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Certain host tools expect the presence of various symbols in
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the ELF image, regardless of image configuration or composition.
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Enabling this option may cause these host tools to end abnormally
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if the expected symbols have been discarded.
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endmenu
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source "drivers/Kconfig"
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config EXPERIMENTAL
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bool
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prompt "Experimental Options"
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default n
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help
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This option enables all experimental options in the project.
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If it is disabled, all options marked as EXPERIMENTAL will
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be disabled.
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If it is enabled, all options marked as EXPERIMENTAL will
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be available for selection.
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