Replaced per-target bootloader.ld.in with bootloader.memory.ld.in and
bootloader.sections.ld.in.
Common code moved to file bootloader.sections.common.ld
Unify ESP32-P4 ECO4- and ECO4+ linker scripts into one shared script
Revision-specific code is selected with CONFIG_ESP32P4_SELECTS_REV_LESS_V3
When CONFIG_SECURE_BOOT_V2_ENABLED=y but
CONFIG_SECURE_BOOT_BUILD_SIGNED_BINARIES is not set, produce the
binary directly as bootloader.bin instead of bootloader-unsigned.bin.
This matches the v1 behavior where the intermediate binary name is
conditional: bootloader-unsigned.bin only when build-time signing is
enabled (so the signed output can be named bootloader.bin), otherwise
the output is bootloader.bin directly.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
The __init_project_configuration() function in cmakev2's project.cmake
unconditionally applied app-level compiler optimization flags based on
CONFIG_COMPILER_OPTIMIZATION_* Kconfig options. When the bootloader
subproject was built with cmakev2, these app-level flags leaked into the
bootloader compile command alongside the correct bootloader-specific
flags from CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_*.
For example, with the default configuration (app: DEBUG, bootloader:
SIZE), the bootloader received both "-Og -fno-shrink-wrap" (from app
config) and "-Os -freorder-blocks" (from bootloader config). While GCC
uses the last -O flag (-Os wins), the stray -fno-shrink-wrap persisted.
Introduce a SET_COMPILER_OPTIMIZATION build property that defaults to
YES when unset. Subprojects that manage their own optimization flags
(like the bootloader) can set this to NO before calling
idf_project_init() to prevent the default optimization flags from being
applied. This keeps project.cmake generic without requiring it to know
about specific subproject types.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
Add CMakeLists_v2.txt to the bootloader subproject, implementing the
bootloader build using the new cmakev2 IDF build framework.
The file covers the full bootloader build pipeline:
- Sets PROJECT_COMPONENTS_SOURCE to "idf_components" so that the
subproject's built-in components (main/, components/) are treated as
IDF components (priority 0) rather than project components (priority
3). This preserves the cmakev1 behaviour where user-supplied
components in bootloader_components/ can override the built-in ones.
- Registers optional user-supplied bootloader components from the
application project's bootloader_components/ directory, with support
for selectively excluding individual components via
IGNORE_EXTRA_COMPONENT.
- Bootstraps the cmakev2 framework (idf.cmake) and initialises the
project with BOOTLOADER_BUILD and NON_OS_BUILD properties, which are
also exposed as C preprocessor definitions.
- Sets GENERATE_SDKCONFIG to 0 to prevent the bootloader subproject
from regenerating the main project's sdkconfig, as the bootloader
has a different set of components and hence different Kconfig files.
- Sets the common implicit component dependencies shared by every
bootloader component (log, esp_rom, esp_common, esp_hw_support,
esp_libc, arch-specific component).
- Applies the compiler options specific for bootloader
- Selects the correct target-specific linker script, including a
separate script for ESP32-P4 silicon revisions < v3.
- Links the bootloader ELF via idf_build_executable and then converts it
to a flat binary via one of three paths depending on the secure boot
configuration:
* No secure boot: plain binary + size check + metadata.
* Secure Boot V1 one-time-flash: plain binary with post-build
instructions showing the esptool.py flash command.
* Secure Boot V1 reflashable: derives the symmetric eFuse key from
the ECDSA signing key, produces the reflash-digest image, and
prints burn/flash instructions.
* Secure Boot V2: produces an unsigned binary, optionally signs it
with the configured signing key (RSA-PSS 3072, ECDSA P-256, or
ECDSA P-384) via idf_sign_binary, and prints flash/multi-key
signing instructions.
- Adds comprehensive inline documentation explaining each section's
purpose, the rationale behind individual flags, and the relationships
between Kconfig symbols and generated artefacts.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
esp_stdio contains everything the old esp_vfs_console contained (the vfs stdio glue layer)
as well as other functionality related to stdio (previously referred to as console)
For bin log, reserve the first 4 bytes as zero for variables that are pointed to NULL
and should not be printed in the log. So the esp-idf-monitor will skip printing
those variables.
The bootloader build script incorrectly used the `DEPENDS` keyword with the
`add_custom_command(TARGET ...)` signature. This is unsupported, causes
warnings with modern CMake versions enforcing the CMP0175 policy.
This commit also updates the POST_BUILD messages generated during the
bootloader build to depend on more precise CMake targets rather than
depending on the generic bootloader.elf target.
This commit refactors the esptool_py component to provide utility
functions for binary file generation targets instead of creating the
targets. Binary generation targets are now moved to the respective
projects.
The following changes were done in this commit:
- Added __idf_build_binary() function to esptool_py to create the binary
file generation target.
- Added __idf_build_secure_binary() as the secure boot equivalent of the
above function.
- Top level project build now creates its own binary targets in
idf_build_executable() in build.cmake.
- Bootloader and esp_tee subprojects create their binary file generation
targets in their respective CMakeLists.txt files.
- All post-build targets such as the app_size_check target are now
created by the respective projects and not esptool_py.
- General clean-up of the esptool_py cmake files.
nilesh.kale
Alexey Lapshin
Frantisek Hrbata
Laukik Hase
Song Ruo Jing
armando
morris
Aditya Patwardhan
Xiao Xufeng
wuzhenghui
C.S.M
harshal.patil
Marius Vikhammer
Peter Dragun
Konstantin Kondrashov
Marek Fiala
Sudeep Mohanty
laokaiyao
Chen Jichang
gaoxu
Omar Chebib