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esp-idf/components/esp_rom/component.mk

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separate rom from esp32 component to esp_rom 1. separate rom include files and linkscript to esp_rom 2. modefiy "include rom/xxx.h" to "include esp32/rom/xxx.h" 3. Forward compatible 4. update mqtt
2019-03-14 05:29:32 -04:00
#Linker scripts used to link the final application.
#Warning: These linker scripts are only used when the normal app is compiled; the bootloader
#specifies its own scripts.
esp_rom: export newlib functions as strong symbols
2019-03-10 10:12:34 -04:00
LINKER_SCRIPTS += esp32.rom.ld \
esp32.rom.libgcc.ld \
esp32.rom.syscalls.ld \
esp32.rom.newlib-data.ld
separate rom from esp32 component to esp_rom 1. separate rom include files and linkscript to esp_rom 2. modefiy "include rom/xxx.h" to "include esp32/rom/xxx.h" 3. Forward compatible 4. update mqtt
2019-03-14 05:29:32 -04:00
#SPI-RAM incompatible functions can be used in when the SPI RAM
#workaround is not enabled.
ifndef CONFIG_SPIRAM_CACHE_WORKAROUND
esp_rom: export newlib functions as strong symbols
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LINKER_SCRIPTS += esp32.rom.newlib-funcs.ld
separate rom from esp32 component to esp_rom 1. separate rom include files and linkscript to esp_rom 2. modefiy "include rom/xxx.h" to "include esp32/rom/xxx.h" 3. Forward compatible 4. update mqtt
2019-03-14 05:29:32 -04:00
endif
ifdef CONFIG_NEWLIB_NANO_FORMAT
esp_rom: export newlib functions as strong symbols
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LINKER_SCRIPTS += esp32.rom.newlib-nano.ld
separate rom from esp32 component to esp_rom 1. separate rom include files and linkscript to esp_rom 2. modefiy "include rom/xxx.h" to "include esp32/rom/xxx.h" 3. Forward compatible 4. update mqtt
2019-03-14 05:29:32 -04:00
endif
esp_rom: don’t include locale functions when compiling with newlib 3
2019-03-29 00:37:51 -04:00
ifneq ($(GCC_NOT_5_2_0), 1)
LINKER_SCRIPTS += esp32.rom.newlib-locale.ld
endif
separate rom from esp32 component to esp_rom 1. separate rom include files and linkscript to esp_rom 2. modefiy "include rom/xxx.h" to "include esp32/rom/xxx.h" 3. Forward compatible 4. update mqtt
2019-03-14 05:29:32 -04:00
ifndef CONFIG_SPI_FLASH_ROM_DRIVER_PATCH
LINKER_SCRIPTS += esp32.rom.spiflash.ld
endif
[system]: Made longjmp save for context switch * 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.
2021-04-08 00:16:17 -04:00
COMPONENT_SRCDIRS := patches
separate rom from esp32 component to esp_rom 1. separate rom include files and linkscript to esp_rom 2. modefiy "include rom/xxx.h" to "include esp32/rom/xxx.h" 3. Forward compatible 4. update mqtt
2019-03-14 05:29:32 -04:00
COMPONENT_ADD_LDFLAGS += -L $(COMPONENT_PATH)/esp32/ld \
$(addprefix -T ,$(LINKER_SCRIPTS)) \
[system]: Made longjmp save for context switch * 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.
2021-04-08 00:16:17 -04:00
-l$(COMPONENT_NAME) -Wl,--wrap=longjmp \
separate rom from esp32 component to esp_rom 1. separate rom include files and linkscript to esp_rom 2. modefiy "include rom/xxx.h" to "include esp32/rom/xxx.h" 3. Forward compatible 4. update mqtt
2019-03-14 05:29:32 -04:00
COMPONENT_ADD_LINKER_DEPS += $(addprefix esp32/ld/, $(LINKER_SCRIPTS))
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