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 * Holds pointers to data passed from the program loader to the program
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 * Holds pointers to data passed from the program loader to the program
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 * and/or to the dynamic linker. This includes the program entry point,
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 * and/or to the dynamic linker. This includes the program entry point,
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 * arguments, environment variables etc.
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 * arguments, environment variables etc.
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 */
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 */
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typedef struct {
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typedef struct {
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    /** Program entry point */
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    /** Program entry point. */
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    entry_point_t entry;
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    entry_point_t entry;
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    /** Number of command-line arguments */
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    /** Number of command-line arguments. */
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    int argc;
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    int argc;
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    /** Command-line arguments */
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    /** Command-line arguments. */
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    char **argv;
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    char **argv;
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    /*
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    /*
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     * ELF-specific data
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     * ELF-specific data.
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     */
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     */
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    /** Pointer to ELF dynamic section of the program */
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    /** Pointer to ELF dynamic section of the program. */
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    void *dynamic;
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    void *dynamic;
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    /** Pointer to dynamic section of the runtime linker */
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    void *rtld_dynamic;
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    /** Runtime-linker load bias */
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    uintptr_t rtld_bias;
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} pcb_t;
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} pcb_t;
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- 
 
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/**
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 * A pointer to the program control block. Having received the PCB pointer,
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 * the C library startup code stores it here for later use.
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 */
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extern pcb_t *__pcb;
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extern pcb_t *__pcb;
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#endif
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#endif
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/**
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/**