kopia lustrzana https://github.com/espressif/esp-idf
Kconfig: split out compiler options, add them to reference
Ivan Grokhotkov
rodzic
2f7d327978
commit
5e0a3d99e8
129
Kconfig
129
Kconfig
|
|
@ -35,134 +35,7 @@ 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 *".
|
||||
|
||||
endmenu # Compiler Options
|
||||
source "$IDF_PATH/Kconfig.compiler"
|
||||
|
||||
menu "Component config"
|
||||
source "$COMPONENT_KCONFIGS"
|
||||
|
|
|
|||
|
|
@ -0,0 +1,135 @@
|
|||
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 *``.
|
||||
|
||||
endmenu # Compiler Options
|
||||
|
|
@ -122,6 +122,9 @@ def print_all_components():
|
|||
|
||||
process_kconfig_file(kconfig_file_path, heading_level, 'Component config')
|
||||
process_kconfig_file(kconfig_file_path + '.projbuild', heading_level, '')
|
||||
|
||||
kconfig_file_path = os.path.join(os.path.curdir, '../..', 'Kconfig.compiler')
|
||||
process_kconfig_file(kconfig_file_path, heading_level, '')
|
||||
|
||||
if __name__ == '__main__':
|
||||
print_all_components()
|
||||
|
|
|
|||
Ładowanie…
Reference in New Issue