Chapter 2. API Reference
• 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
The performance impact includes increasing the amount of stack memory required for each task.
Available options:
• None (COMPILER_STACK_CHECK_MODE_NONE)
• Normal (COMPILER_STACK_CHECK_MODE_NORM)
• Strong (COMPILER_STACK_CHECK_MODE_STRONG)
• Overall (COMPILER_STACK_CHECK_MODE_ALL)
CONFIG_COMPILER_WARN_WRITE_STRINGS
Enable -Wwrite-strings warning flag
Found in: Compiler options
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 \*.
Default value:
• No (disabled)
CONFIG_COMPILER_DISABLE_GCC8_WARNINGS
Disable new warnings introduced in GCC 6 - 8
Found in: Compiler options
Enable this option if using GCC 6 or newer, and wanting to disable warnings which don’t appear with
GCC 5.
Default value:
• No (disabled)
CONFIG_COMPILER_DUMP_RTL_FILES
Dump RTL files during compilation
Found in: Compiler options
If enabled, RTL files will be produced during compilation. These files can be used by other tools, for
example to calculate call graphs.
Component config
Contains:
• ADC-Calibration
• Application Level Tracing
• CoAP Configuration
• Common ESP-related
• Core dump
• Driver configurations
• eFuse Bit Manager
Espressif Systems 1084
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