Extract GCABI json

gcabi.c

/**
arm-linux-gnueabihf-gcc -ggdb -g3 gcabi.c -o gcabi -I /.../galcore_headers/include_imx8_v6.2.3.129602
extract_structures_json.py gcabi _gcsHAL_INTERFACE _gcoCMDBUF _gcsQUEUE > data/gcs_hal_interface_GCABI.json
 */

#include <gc_abi.h>

struct _gcsHAL_INTERFACE x;
struct _gcoCMDBUF y;
struct _gcsQUEUE z;

int main()
{
    x.command = gcvHAL_QUERY_VIDEO_MEMORY;
    y.object.type = gcvOBJ_COMMANDBUFFER;
    z.next = 12345;
}