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menu "Debugging Options"
config DEBUG
bool "Developer Checks"
default n
---help---
If you say Y here this will enable developer checks such as asserts
and extra printks. This option is intended for development purposes
only, and not for production use.
You probably want to say 'N' here.
if DEBUG || EXPERT = "y"
config CRASH_DEBUG
bool "Crash Debugging Support"
depends on X86
---help---
If you want to attach gdb to Xen to debug Xen if it crashes
then say Y.
config FRAME_POINTER
bool "Compile Xen with frame pointers"
default DEBUG
---help---
If you say Y here the resulting Xen will be slightly larger and
maybe slower, but it gives very useful debugging information
in case of any Xen bugs.
config GCOV
bool "Gcov Support"
depends on !LIVEPATCH
select SUPPRESS_DUPLICATE_SYMBOL_WARNINGS
---help---
Enable gcov (a test coverage program in GCC) support.
If unsure, say N here.
choice
prompt "Specify Gcov format"
depends on GCOV
default GCOV_FORMAT_AUTODETECT
---help---
The gcov format is determined by gcc version.
If unsure, choose "Autodetect".
config GCOV_FORMAT_AUTODETECT
bool "Autodetect"
---help---
Automatically select gcov format based on gcc version.
config GCOV_FORMAT_5
bool "GCC 5 format"
---help---
Select this option to use the format specified in GCC 5.
Works in gcc version range [5, ...).
config GCOV_FORMAT_4_9
bool "GCC 4.9 format"
---help---
Select this option to use the format specified in GCC 4.9.
Works in gcc version range [4.9, 5).
config GCOV_FORMAT_4_7
bool "GCC 4.7 format"
---help---
Select this option to use the format specified in GCC 4.7.
Works in gcc version range [4.7, 4.9).
config GCOV_FORMAT_3_4
bool "GCC 3.4 format"
---help---
Select this option to use the format specified in GCC 3.4.
Works in gcc version range [3.4, 4.7).
endchoice
config LOCK_PROFILE
bool "Lock Profiling"
---help---
Lock profiling allows you to see how often locks are taken and blocked.
You can use serial console to print (and reset) using 'l' and 'L'
respectively, or the 'xenlockprof' tool.
config PERF_COUNTERS
bool "Performance Counters"
---help---
Enables software performance counters that allows you to analyze
bottlenecks in the system. To access this data you can use serial
console to print (and reset) using 'p' and 'P' respectively, or
the 'xenperf' tool.
config PERF_ARRAYS
bool "Performance Counter Array Histograms"
depends on PERF_COUNTERS
---help---
Enables software performance counter array histograms.
config VERBOSE_DEBUG
bool "Verbose debug messages"
default DEBUG
---help---
Guest output from HYPERVISOR_console_io and hypervisor parsing
ELF images (dom0) will be logged in the Xen ring buffer.
config DEVICE_TREE_DEBUG
bool "Device tree debug messages"
depends on HAS_DEVICE_TREE
---help---
Device tree parsing and DOM0 device tree building messages are
logged in the Xen ring buffer.
If unsure, say N here.
endif # DEBUG || EXPERT
endmenu
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