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  1. Embedded Software & Tools
  2. EXT_EP-10875

EABI cinit copy initialization of a single byte size global variable overwrites the adjacent memory location with a zero value

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Medium Medium
    • Code Generation Tools
    • CODEGEN-10306
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      https://e2e.ti.com/support/tools/code-composer-studio-group/ccs/f/code-composer-studio-forum/1190185/cl2000-linker-generating-wrong-autoinitialization-data/4484946?tisearch=e2e-sitesearch&keymatch=EXT_EP-10875#4484946
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      https://e2e.ti.com/support/tools/code-composer-studio-group/ccs/f/code-composer-studio-forum/1190185/cl2000-linker-generating-wrong-autoinitialization-data/4484946?tisearch=e2e-sitesearch&keymatch=EXT_EP-10875#4484946
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      C2000_16.9.0.LTS
      C6000_8.2.0
      C7000_5.0.0.STS*
      C6000_8.3.0
      MSP430_20.2.0.LTS
      C7000_2.1.0.LTS
      ARM_18.12.0.LTS
      MSP430_21.6.0.LTS
      C2000_21.6.0.LTS
      PRU_2.3.0
      C7000_3.1.0.LTS
      PRU_2.2.0
      ARM_20.2.0.LTS
      C7000_4.0.0.STS
      C7000_4.1.0.LTS
      C2000_20.2.0.LTS
      ARM_18.1.0.LTS
      MSP430_18.1.0.LTS
      C7000_1.4.0.LTS
      ARM_16.9.0.LTS
      C2000_22.6.0.LTS
      MSP430_18.12.0.LTS
      MSP430_16.9.0.LTS
      C2000_18.12.0.LTS
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      C2000_16.9.0.LTS C6000_8.2.0 C7000_5.0.0.STS* C6000_8.3.0 MSP430_20.2.0.LTS C7000_2.1.0.LTS ARM_18.12.0.LTS MSP430_21.6.0.LTS C2000_21.6.0.LTS PRU_2.3.0 C7000_3.1.0.LTS PRU_2.2.0 ARM_20.2.0.LTS C7000_4.0.0.STS C7000_4.1.0.LTS C2000_20.2.0.LTS ARM_18.1.0.LTS MSP430_18.1.0.LTS C7000_1.4.0.LTS ARM_16.9.0.LTS C2000_22.6.0.LTS MSP430_18.12.0.LTS MSP430_16.9.0.LTS C2000_18.12.0.LTS
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      C2000_22.6.2.LTS*
      C2000_21.6.2.LTS*
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      C2000_22.6.2.LTS* C2000_21.6.2.LTS*
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      Include at least one additional global variable in the same data section’s init record to make it larger. This will generate a cinit record with the correct size for number of variables to initialize.

      Or avoid using the adjacent memory location which will get zero initialized.
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      Include at least one additional global variable in the same data section’s init record to make it larger. This will generate a cinit record with the correct size for number of variables to initialize. Or avoid using the adjacent memory location which will get zero initialized.

      EABI cinit copy initialization of a single byte size global variable overwrites the adjacent memory location with a zero value. Depending on the order of global variable initializations, this might over write a variable in the adjacent memory location.

      This happens only for single-variable cinit copy records and only for "copy" compression which actually means no compression.

      Some targets have 8-bit bytes and some have 16-bit bytes. This issue affects both.

            syncuser TI User
            syncuser TI User
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              Created:
              Updated: