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https://github.com/espressif/esp-idf.git
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fc22e3c645
* Patched longjmp to be context-switch safe longjmp modifies the windowbase and windowstart registers, which isn't safe if a context switch occurs during the modification. After a context switch, windowstart and windowbase will be different, leading to a wrongly set windowstart bit due to longjmp writing it based on the windowbase before the context switch. This corrupts the registers at the next window overflow reaching that wrongly set bit. The solution is to disable interrupts during this code. It is only 6 instructions long, the impact shouldn't be significant. The fix is implemented as a wrapper which replaces the original first instructions of longjmp which are buggy. Then, it jumps back to execute the rest of the original longjmp function. Added a comparably reliable test to the test apps.
35 lines
1.2 KiB
Makefile
35 lines
1.2 KiB
Makefile
#
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# This is a project Makefile. It is assumed the directory this Makefile resides in is a
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# project subdirectory.
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#
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ifeq ("$(MAKELEVEL)","0")
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$(error Bootloader makefile expects to be run as part of 'make bootloader' from a top-level project.)
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endif
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PROJECT_NAME := bootloader
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COMPONENTS := esp_hw_support esptool_py bootloader_support log spi_flash micro-ecc soc main efuse esp_rom hal xtensa
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# Clear C and CXX from top level project
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CFLAGS =
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CXXFLAGS =
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#We cannot include the idf_target, esp_common component directly but we need their includes.
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CFLAGS += -I $(IDF_PATH)/components/$(IDF_TARGET)/include
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CFLAGS += -I $(IDF_PATH)/components/esp_common/include
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CFLAGS += -I $(IDF_PATH)/components/xtensa/include -I $(IDF_PATH)/components/xtensa/$(IDF_TARGET)/include
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# The bootloader pseudo-component is also included in this build, for its Kconfig.projbuild to be included.
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#
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# IS_BOOTLOADER_BUILD tells the component Makefile.projbuild to be a no-op
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IS_BOOTLOADER_BUILD := 1
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export IS_BOOTLOADER_BUILD
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# BOOTLOADER_BUILD macro is the same, for source file changes
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CFLAGS += -D BOOTLOADER_BUILD=1
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# include the top-level "project" include directory, for sdkconfig.h
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CFLAGS += -I$(BUILD_DIR_BASE)/../include
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include $(IDF_PATH)/make/project.mk
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