2016-08-17 11:08:22 -04:00
|
|
|
#
|
|
|
|
|
# For a description of the syntax of this configuration file,
|
|
|
|
|
# see kconfig/kconfig-language.txt.
|
|
|
|
|
#
|
2016-08-19 02:30:39 -04:00
|
|
|
mainmenu "Espressif IoT Development Framework Configuration"
|
2016-08-17 11:08:22 -04:00
|
|
|
|
2018-12-06 09:08:18 -05:00
|
|
|
config IDF_CMAKE
|
|
|
|
|
bool
|
|
|
|
|
option env="IDF_CMAKE"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
config IDF_TARGET_ENV
|
|
|
|
|
# A proxy to get environment variable $IDF_TARGET
|
|
|
|
|
string
|
|
|
|
|
option env="IDF_TARGET"
|
|
|
|
|
|
|
|
|
|
config IDF_TARGET
|
|
|
|
|
# This option records the IDF target when sdkconfig is generated the first time.
|
|
|
|
|
# It is not updated if environment variable $IDF_TARGET changes later, and
|
|
|
|
|
# the build system is responsible for detecting the mismatch between
|
|
|
|
|
# CONFIG_IDF_TARGET and $IDF_TARGET.
|
|
|
|
|
string
|
|
|
|
|
default "IDF_TARGET_NOT_SET" if IDF_TARGET_ENV=""
|
|
|
|
|
default IDF_TARGET_ENV
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
menu "SDK tool configuration"
|
|
|
|
|
config TOOLPREFIX
|
|
|
|
|
string "Compiler toolchain path/prefix"
|
|
|
|
|
default "xtensa-esp32-elf-"
|
|
|
|
|
help
|
|
|
|
|
The prefix/path that is used to call the toolchain. The default setting assumes
|
|
|
|
|
a crosstool-ng gcc setup that is in your PATH.
|
|
|
|
|
|
|
|
|
|
config PYTHON
|
|
|
|
|
string "Python 2 interpreter"
|
|
|
|
|
depends on !IDF_CMAKE
|
|
|
|
|
default "python"
|
|
|
|
|
help
|
|
|
|
|
The executable name/path that is used to run python. On some systems Python 2.x
|
|
|
|
|
may need to be invoked as python2.
|
|
|
|
|
|
|
|
|
|
(Note: This option is used with the GNU Make build system only, not idf.py
|
|
|
|
|
or CMake-based builds.)
|
|
|
|
|
|
|
|
|
|
config MAKE_WARN_UNDEFINED_VARIABLES
|
|
|
|
|
bool "'make' warns on undefined variables"
|
|
|
|
|
default "y"
|
|
|
|
|
help
|
|
|
|
|
Adds --warn-undefined-variables to MAKEFLAGS. This causes make to
|
|
|
|
|
print a warning any time an undefined variable is referenced.
|
|
|
|
|
|
|
|
|
|
This option helps find places where a variable reference is misspelled
|
|
|
|
|
or otherwise missing, but it can be unwanted if you have Makefiles which
|
|
|
|
|
depend on undefined variables expanding to an empty string.
|
|
|
|
|
|
|
|
|
|
endmenu # SDK tool configuration
|
|
|
|
|
|
|
|
|
|
source "$COMPONENT_KCONFIGS_PROJBUILD"
|
|
|
|
|
|
|
|
|
|
menu "Compiler options"
|
|
|
|
|
|
|
|
|
|
choice OPTIMIZATION_COMPILER
|
|
|
|
|
prompt "Optimization Level"
|
|
|
|
|
default OPTIMIZATION_LEVEL_DEBUG
|
|
|
|
|
help
|
|
|
|
|
This option sets compiler optimization level (gcc -O argument).
|
|
|
|
|
|
|
|
|
|
- for "Release" setting, -Os flag is added to CFLAGS.
|
|
|
|
|
- for "Debug" setting, -Og flag is added to CFLAGS.
|
|
|
|
|
|
|
|
|
|
"Release" with -Os produces smaller & faster compiled code but it
|
|
|
|
|
may be harder to correlated code addresses to source files when debugging.
|
|
|
|
|
|
|
|
|
|
To add custom optimization settings, set CFLAGS and/or CPPFLAGS
|
|
|
|
|
in project makefile, before including $(IDF_PATH)/make/project.mk. Note that
|
|
|
|
|
custom optimization levels may be unsupported.
|
|
|
|
|
|
|
|
|
|
config OPTIMIZATION_LEVEL_DEBUG
|
|
|
|
|
bool "Debug (-Og)"
|
|
|
|
|
config OPTIMIZATION_LEVEL_RELEASE
|
|
|
|
|
bool "Release (-Os)"
|
|
|
|
|
endchoice
|
|
|
|
|
|
|
|
|
|
choice OPTIMIZATION_ASSERTION_LEVEL
|
|
|
|
|
prompt "Assertion level"
|
|
|
|
|
default OPTIMIZATION_ASSERTIONS_ENABLED
|
|
|
|
|
help
|
|
|
|
|
Assertions can be:
|
|
|
|
|
|
|
|
|
|
- Enabled. Failure will print verbose assertion details. This is the default.
|
|
|
|
|
|
|
|
|
|
- Set to "silent" to save code size (failed assertions will abort() but user
|
|
|
|
|
needs to use the aborting address to find the line number with the failed assertion.)
|
|
|
|
|
|
|
|
|
|
- Disabled entirely (not recommended for most configurations.) -DNDEBUG is added
|
|
|
|
|
to CPPFLAGS in this case.
|
|
|
|
|
|
|
|
|
|
config OPTIMIZATION_ASSERTIONS_ENABLED
|
|
|
|
|
prompt "Enabled"
|
|
|
|
|
bool
|
|
|
|
|
help
|
|
|
|
|
Enable assertions. Assertion content and line number will be printed on failure.
|
|
|
|
|
|
|
|
|
|
config OPTIMIZATION_ASSERTIONS_SILENT
|
|
|
|
|
prompt "Silent (saves code size)"
|
|
|
|
|
bool
|
|
|
|
|
help
|
|
|
|
|
Enable silent assertions. Failed assertions will abort(), user needs to
|
|
|
|
|
use the aborting address to find the line number with the failed assertion.
|
|
|
|
|
|
|
|
|
|
config OPTIMIZATION_ASSERTIONS_DISABLED
|
|
|
|
|
prompt "Disabled (sets -DNDEBUG)"
|
|
|
|
|
bool
|
|
|
|
|
help
|
|
|
|
|
If assertions are disabled, -DNDEBUG is added to CPPFLAGS.
|
|
|
|
|
|
|
|
|
|
endchoice # assertions
|
|
|
|
|
|
|
|
|
|
menuconfig CXX_EXCEPTIONS
|
|
|
|
|
bool "Enable C++ exceptions"
|
|
|
|
|
default n
|
|
|
|
|
help
|
|
|
|
|
Enabling this option compiles all IDF C++ files with exception support enabled.
|
|
|
|
|
|
|
|
|
|
Disabling this option disables C++ exception support in all compiled files, and any libstdc++ code
|
|
|
|
|
which throws an exception will abort instead.
|
|
|
|
|
|
|
|
|
|
Enabling this option currently adds an additional ~500 bytes of heap overhead
|
|
|
|
|
when an exception is thrown in user code for the first time.
|
|
|
|
|
|
|
|
|
|
config CXX_EXCEPTIONS_EMG_POOL_SIZE
|
|
|
|
|
int "Emergency Pool Size"
|
|
|
|
|
default 0
|
|
|
|
|
depends on CXX_EXCEPTIONS
|
|
|
|
|
help
|
|
|
|
|
Size (in bytes) of the emergency memory pool for C++ exceptions. This pool will be used to allocate
|
|
|
|
|
memory for thrown exceptions when there is not enough memory on the heap.
|
|
|
|
|
|
|
|
|
|
choice STACK_CHECK_MODE
|
|
|
|
|
prompt "Stack smashing protection mode"
|
|
|
|
|
default STACK_CHECK_NONE
|
|
|
|
|
help
|
|
|
|
|
Stack smashing protection mode. Emit extra code to check for buffer overflows, such as stack
|
|
|
|
|
smashing attacks. This is done by adding a guard variable to functions with vulnerable objects.
|
|
|
|
|
The guards are initialized when a function is entered and then checked when the function exits.
|
|
|
|
|
If a guard check fails, program is halted. Protection has the following modes:
|
|
|
|
|
|
|
|
|
|
- In NORMAL mode (GCC flag: -fstack-protector) only functions that call alloca, and functions with
|
|
|
|
|
buffers larger than 8 bytes are protected.
|
|
|
|
|
|
|
|
|
|
- STRONG mode (GCC flag: -fstack-protector-strong) is like NORMAL, but includes additional functions
|
|
|
|
|
to be protected -- those that have local array definitions, or have references to local frame
|
|
|
|
|
addresses.
|
|
|
|
|
|
|
|
|
|
- In OVERALL mode (GCC flag: -fstack-protector-all) all functions are protected.
|
|
|
|
|
|
|
|
|
|
Modes have the following impact on code performance and coverage:
|
|
|
|
|
|
|
|
|
|
- performance: NORMAL > STRONG > OVERALL
|
|
|
|
|
|
|
|
|
|
- coverage: NORMAL < STRONG < OVERALL
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
config STACK_CHECK_NONE
|
|
|
|
|
bool "None"
|
|
|
|
|
config STACK_CHECK_NORM
|
|
|
|
|
bool "Normal"
|
|
|
|
|
config STACK_CHECK_STRONG
|
|
|
|
|
bool "Strong"
|
|
|
|
|
config STACK_CHECK_ALL
|
|
|
|
|
bool "Overall"
|
|
|
|
|
endchoice
|
|
|
|
|
|
|
|
|
|
config STACK_CHECK
|
|
|
|
|
bool
|
|
|
|
|
default !STACK_CHECK_NONE
|
|
|
|
|
help
|
|
|
|
|
Stack smashing protection.
|
|
|
|
|
|
|
|
|
|
config WARN_WRITE_STRINGS
|
|
|
|
|
bool "Enable -Wwrite-strings warning flag"
|
|
|
|
|
default "n"
|
|
|
|
|
help
|
|
|
|
|
Adds -Wwrite-strings flag for the C/C++ compilers.
|
|
|
|
|
|
|
|
|
|
For C, this gives string constants the type ``const char[]`` so that
|
|
|
|
|
copying the address of one into a non-const ``char *`` pointer
|
|
|
|
|
produces a warning. This warning helps to find at compile time code
|
|
|
|
|
that tries to write into a string constant.
|
|
|
|
|
|
|
|
|
|
For C++, this warns about the deprecated conversion from string
|
|
|
|
|
literals to ``char *``.
|
|
|
|
|
|
|
|
|
|
config DISABLE_GCC8_WARNINGS
|
|
|
|
|
bool "Disable new warnings introduced in GCC 6 - 8"
|
|
|
|
|
default "n"
|
|
|
|
|
help
|
|
|
|
|
Enable this option if using GCC 6 or newer, and wanting to disable warnings which don't appear with
|
|
|
|
|
GCC 5.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
endmenu # Compiler Options
|
|
|
|
|
|
|
|
|
|
menu "Component config"
|
|
|
|
|
source "$COMPONENT_KCONFIGS"
|
|
|
|
|
endmenu
|
