main.asm

// call one (EXECUTE_TASK_WITH_INIT)
  400414:       52800033        mov     w19, #0x1                       // #1
  400418:       b9004bb3        str     w19, [x29, #72]
  40041c:       b9004fbf        str     wzr, [x29, #76]
  400420:       b90053b3        str     w19, [x29, #80]
  400424:       b90057b3        str     w19, [x29, #84]
  400428:       b9005bbf        str     wzr, [x29, #88]
  40042c:       b9005fbf        str     wzr, [x29, #92]
  400430:       90000475        adrp    x21, 48c000 <__FRAME_END__+0x10334>
  400434:       f947b2b5        ldr     x21, [x21, #3936]
  400438:       f9400aa2        ldr     x2, [x21, #16]
  40043c:       910123b4        add     x20, x29, #0x48
  400440:       aa1403e1        mov     x1, x20
  400444:       52800080        mov     w0, #0x4                        // #4
  400448:       d63f0040        blr     x2
  
  // here is the supposedly identical code
  
  40044c:       d2800001        mov     x1, #0x0                        // #0
  400450:       d2800000        mov     x0, #0x0                        // #0
  400454:       94000104        bl      400864 <m5_dump_stats>
  400458:       f94006a0        ldr     x0, [x21, #8]
  40045c:       d63f0000        blr     x0
  400460:       d2800001        mov     x1, #0x0                        // #0
  400464:       d2800000        mov     x0, #0x0                        // #0
  400468:       940000ff        bl      400864 <m5_dump_stats>


// call two (EXECUTE_TASK)
  400460:       d2800001        mov     x1, #0x0                        // #0
  400464:       d2800000        mov     x0, #0x0                        // #0
  4005dc:       940000a2        bl      400864 <m5_dump_stats>
  4005e0:       90000460        adrp    x0, 48c000 <__FRAME_END__+0x10334> // What is this frame end variable?
  4005e4:       f946c800        ldr     x0, [x0, #3472]                    // Where does this come from?
  4005e8:       f9400400        ldr     x0, [x0, #8]
  4005ec:       d63f0000        blr     x0
  4005f0:       d2800001        mov     x1, #0x0                        // #0
  4005f4:       d2800000        mov     x0, #0x0                        // #0
  4005f8:       9400009b        bl      400864 <m5_dump_stats>



000000000047bccc <__FRAME_END__>:
  47bccc:       00000000        .word   0x00000000

main.c

// MIT license applies

#include "gem5/m5ops.h"
#include <stdio.h>


typedef int (*functionPtr)();
typedef int (*initFunctionPtr)(int count, int *task_args);

typedef struct task {
    char *name;
    functionPtr function;
    initFunctionPtr init;
    struct task* next_task;
} task;

// these are all defined in a library
void program_init(void);

extern task _altitude_control_task;
extern task _climb_control_task;
extern task _link_fbw_send;
extern task _navigation_task;
extern task _radio_control_task;
extern task _receive_gps_data_task;
extern task _reporting_task;
extern task _stabilisation_task;
extern task _check_failsafe_task;
extern task _check_mega128_values_task;
extern task _send_data_to_autopilot_task;
extern task _servo_transmit;
extern task _test_ppm_task;


#define EXECUTE_TASK_WITH_INIT(task, valcount, valone, valtwo, valthree, valfour, valfive, valsix) \
    values[0] = valone; values[1] = valtwo; values[2] = valthree; values[3] = valfour; values[4] = valfive; values[5] = valsix; \
    /*printf("running " #task " with %i count %i %i %i %i %i %i\n", valcount, valone, valtwo, valthree, valfour, valfive, valsix);*/ \
    task.init(valcount, values); \
    m5_dump_stats(0, 0); task.function(); m5_dump_stats(0, 0); \


#define EXECUTE_TASK(task) \
    m5_dump_stats(0, 0); task.function(); m5_dump_stats(0, 0);

int main( int argc, char *argv[] ) {
    int values[6];

    program_init();

    EXECUTE_TASK_WITH_INIT(_test_ppm_task, 4, 1, 0, 1, 1, 0, 0)
    EXECUTE_TASK(_servo_transmit)
    EXECUTE_TASK_WITH_INIT(_send_data_to_autopilot_task, 4, 0, 1, 1, 1, 0, 0)
    EXECUTE_TASK_WITH_INIT(_check_mega128_values_task, 4, 0, 1, 0, 1, 0, 0)
    EXECUTE_TASK_WITH_INIT(_check_failsafe_task, 1, 0, 0, 0, 0, 0, 0)
    EXECUTE_TASK_WITH_INIT(_stabilisation_task, 1, 1, 0, 0, 0, 0, 0)
    EXECUTE_TASK(_reporting_task)
    EXECUTE_TASK_WITH_INIT(_receive_gps_data_task, 6, 0, 3, 0, 0, 0, 6)
    EXECUTE_TASK_WITH_INIT(_radio_control_task, 5, 1, 4, 1, 1, 0, 0)
    EXECUTE_TASK_WITH_INIT(_navigation_task, 2, 0, 3, 0, 0, 0, 0)
    EXECUTE_TASK_WITH_INIT(_link_fbw_send, 1, 1, 0, 0, 0, 0, 0)
    EXECUTE_TASK_WITH_INIT(_climb_control_task, 5, 0, 1, 7, 6, 1, 0)
    EXECUTE_TASK_WITH_INIT(_altitude_control_task, 1, 1, 0, 0, 0, 0, 0)

    return 0;
}