mirror of
https://github.com/SasaKaranovic/HousePlantMonitoringSystem.git
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Sasa Karanovic
63 lines
2.6 KiB
Plaintext
63 lines
2.6 KiB
Plaintext
Size
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https://mcuoneclipse.com/2013/04/14/text-data-and-bss-code-and-data-size-explained/
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The ‘bss’ contains all the uninitalized data.
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💡 bss (or .bss, or BSS) is the abbreviation for ‘Block Started by Symbol’ by an old assembler (see this link).
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The ‘dec’ (as a decimal number) is the sum of text, data and bss:
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‘data’ is used for initialized data. This is best explained with the following (global/extern) variable:
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‘text’ is what ends up in FLASH memory. I can show this with adding
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arm-none-eabi-size build/PlantSensorL011.elf
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text data bss dec hex filename
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12808 120 1216 14144 3740 build/PlantSensorL011.elf
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arm-none-eabi-objcopy -O ihex build/PlantSensorL011.elf build/PlantSensorL011.hex
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arm-none-eabi-objcopy -O binary -S build/PlantSensorL011.elf build/PlantSensorL011.bin
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arm-none-eabi-size build/PlantSensorL011.elf
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text data bss dec hex filename
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11788 120 1216 13124 3344 build/PlantSensorL011.elf
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arm-none-eabi-objcopy -O ihex build/PlantSensorL011.elf build/PlantSensorL011.hex
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arm-none-eabi-objcopy -O binary -S build/PlantSensorL011.elf build/PlantSensorL011.bin
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std libs
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arm-none-eabi-size build/PlantSensorL011.elf
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text data bss dec hex filename
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11788 120 1216 13124 3344 build/PlantSensorL011.elf
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arm-none-eabi-objcopy -O ihex build/PlantSensorL011.elf build/PlantSensorL011.hex
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arm-none-eabi-objcopy -O binary -S build/PlantSensorL011.elf build/PlantSensorL011.bin
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--- tinyprintf - logger 32b buffer --
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arm-none-eabi-size build/PlantSensorL011.elf
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text data bss dec hex filename
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10876 20 1188 12084 2f34 build/PlantSensorL011.elf
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arm-none-eabi-objcopy -O ihex build/PlantSensorL011.elf build/PlantSensorL011.hex
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arm-none-eabi-objcopy -O binary -S build/PlantSensorL011.elf build/PlantSensorL011.bin
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--- tinyprintf - logger 64b buffer - [main] ---
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arm-none-eabi-size build/PlantSensorL011.elf
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text data bss dec hex filename
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10972 20 1220 12212 2fb4 build/PlantSensorL011.elf
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arm-none-eabi-objcopy -O ihex build/PlantSensorL011.elf build/PlantSensorL011.hex
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arm-none-eabi-objcopy -O binary -S build/PlantSensorL011.elf build/PlantSensorL011.bin
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--- tinyprintf - logger 64b buffer - [main, adc] ---
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arm-none-eabi-size build/PlantSensorL011.elf
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text data bss dec hex filename
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11596 20 1220 12836 3224 build/PlantSensorL011.elf
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arm-none-eabi-objcopy -O ihex build/PlantSensorL011.elf build/PlantSensorL011.hex
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arm-none-eabi-objcopy -O binary -S build/PlantSensorL011.elf build/PlantSensorL011.bin
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