generator/sections/gen-section-firmware.c

/**
 * Functions for generating pseudo-random CPER firmware error sections.
 * 
 * Author: Lawrence.Tang@arm.com
 **/

#include <stdlib.h>
#include "../../edk/BaseTypes.h"
#include "../gen-utils.h"
#include "gen-sections.h"

//Generates a single pseudo-random firmware error section, saving the resulting address to the given
//location. Returns the size of the newly created section.
size_t generate_section_firmware(void** location)
{
    //Create random bytes.
    int size = 32;
    UINT8* bytes = generate_random_bytes(size);
    
    //Set reserved areas to zero.
    for (int i=0; i<6; i++)
        *(bytes + 2 + i) = 0; //Reserved bytes 2-7.

    //Set expected values.
    *(bytes + 1) = 2; //Revision, referenced version of spec is 2.
    UINT64* record_id = (UINT64*)(bytes + 8);
    *record_id = 0; //Record ID, should be forced to NULL.
    *bytes = rand() % 3; //Record type.

    //Set return values, exit.
    *location = bytes;
    return size;
}