The function __attribute__((destructor)) is silently ignored

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    • Type: Bug
    • Resolution: Fixed
    • Priority: Medium
    • Code Generation Tools
    • CODEGEN-14222
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      C29_1.0.0.LTS
      ARMCLANG_5.0.0.STS*
      ARMCLANG_4.0.0.LTS
      C29_2.0.0.STS
      ARMCLANG_3.2.0.LTS
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      C29_1.0.0.LTS ARMCLANG_5.0.0.STS* ARMCLANG_4.0.0.LTS C29_2.0.0.STS ARMCLANG_3.2.0.LTS
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      ARMCLANG_5.0.0.STS*
      C29_1.0.2.LTS*
      ARMCLANG_3.2.4.LTS*
      ARMCLANG_4.0.4.LTS
      C29_2.1.0.LTS*
      Show
      ARMCLANG_5.0.0.STS* C29_1.0.2.LTS* ARMCLANG_3.2.4.LTS* ARMCLANG_4.0.4.LTS C29_2.1.0.LTS*
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      Use the standard RTS function atexit. For example:

          atexit(function_name_here); /* declared in <stdlib.h> */
      Show
      Use the standard RTS function atexit. For example:     atexit(function_name_here); /* declared in <stdlib.h> */

      The attached file has these lines ...

      __attribute__((destructor))
void stub() {}

int main()
{
    return 0;
}

      Build it down to assembly code ...

      tiarmclang -S file.c

      Inspect the assembly to see ...

      	.section	.fini_array,"a",%fini_array
	.p2align	2
	.long	stub(target1)

      An entry is made in the section .fini_array. But the startup and cleanup code in the compiler RTS library ignores this entry.

            Assignee:
            TI User
            Reporter:
            TI User
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            0 Vote for this issue
            Watchers:
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              Created:
              Updated:
              Resolved:

                Connection: Intermediate to External PROD System
                EXTSYNC-5684 - The function __attribute__((destruc...
                SYNCHRONIZED
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