GIGA: C++ Zephyr Sychronization Sample Sketch Compile Error

[mjs513]

Describe the bug
Testing the Zephyr C++ Sychronization Sample sketch:
C++ synchronizationUse Zephyr synchronization primitives from C++ code.

That actually tests virtual functions results in compiler crashes.

Target board + cli verbose compilation output
Target Board: Arduino GIGA R1

Output of Serial Monitor

�[1;32muart:~$ �[msketch
[00:35:21.783,000] �[1;31m<err> llext: Multiple SHT_NOBITS sections are not supported�[0m
[00:35:21.783,000] �[1;31m<err> llext: Failed to map ELF sections, ret -134�[0m
Failed to load sketch, rc -134
�[1;32muart:~$ �[m

Output of readelf
readelf.txt

Optional: attach the sketch

#include "Arduino.h"


/**
 * @class semaphore the basic pure virtual semaphore class
 */
class semaphore {
public:
	virtual int wait(void) = 0;
	virtual int wait(int timeout) = 0;
	virtual void give(void) = 0;
};

/* specify delay between greetings (in ms); compute equivalent in ticks */
#define SLEEPTIME  500
#define STACKSIZE 2000

struct k_thread coop_thread;
K_THREAD_STACK_DEFINE(coop_stack, STACKSIZE);

/*
 * @class cpp_semaphore
 * @brief Semaphore
 *
 * Class derives from the pure virtual semaphore class and
 * implements it's methods for the semaphore
 */
class cpp_semaphore: public semaphore {
protected:
	struct k_sem _sema_internal;
public:
	cpp_semaphore();
	virtual ~cpp_semaphore() {}
	virtual int wait(void);
	virtual int wait(int timeout);
	virtual void give(void);
};

/*
 * @brief cpp_semaphore basic constructor
 */
cpp_semaphore::cpp_semaphore()
{
	printk("Create semaphore %p\n", this);
	k_sem_init(&_sema_internal, 0, K_SEM_MAX_LIMIT);
}

/*
 * @brief wait for a semaphore
 *
 * Test a semaphore to see if it has been signaled.  If the signal
 * count is greater than zero, it is decremented.
 *
 * @return 1 when semaphore is available
 */
int cpp_semaphore::wait(void)
{
	k_sem_take(&_sema_internal, K_FOREVER);
	return 1;
}

/*
 * @brief wait for a semaphore within a specified timeout
 *
 * Test a semaphore to see if it has been signaled.  If the signal
 * count is greater than zero, it is decremented. The function
 * waits for timeout specified
 *
 * @param timeout the specified timeout in ticks
 *
 * @return 1 if semaphore is available, 0 if timed out
 */
int cpp_semaphore::wait(int timeout)
{
	return k_sem_take(&_sema_internal, K_MSEC(timeout));
}

/**
 * @brief Signal a semaphore
 *
 * This routine signals the specified semaphore.
 */
void cpp_semaphore::give(void)
{
	k_sem_give(&_sema_internal);
}

cpp_semaphore sem_main;
cpp_semaphore sem_coop;

void coop_thread_entry(void)
{
	struct k_timer timer;

	k_timer_init(&timer, NULL, NULL);

	while (1) {
		/* wait for main thread to let us have a turn */
		sem_coop.wait();

		/* say "hello" */
		printk("%s: Hello World!\n", __FUNCTION__);

		/* wait a while, then let main thread have a turn */
		k_timer_start(&timer, K_MSEC(SLEEPTIME), K_NO_WAIT);
		k_timer_status_sync(&timer);
		sem_main.give();
	}
}

void setup(void)
{

  Serial.begin(9600);
	struct k_timer timer;

	k_thread_create(&coop_thread, coop_stack, STACKSIZE,
			(k_thread_entry_t) coop_thread_entry,
			NULL, NULL, NULL, K_PRIO_COOP(7), 0, K_NO_WAIT);
	k_timer_init(&timer, NULL, NULL);

	while (1) {
		/* say "hello" */
		printk("%s: Hello World!\n", __FUNCTION__);

		/* wait a while, then let coop thread have a turn */
		k_timer_start(&timer, K_MSEC(SLEEPTIME), K_NO_WAIT);
		k_timer_status_sync(&timer);
		sem_coop.give();

		/* Wait for coop thread to let us have a turn */
		sem_main.wait();
	}

}

void loop(){}

Additional context
Add any other context about the problem here.

[mjs513]

Sorry responded in the other C++ issue (#28 (comment)).

Did a double check looks like as a minimum I seem to need to add:  

CONFIG_CPP=y
CONFIG_STD_CPP17=y

to avoid a __cxa_pure_virtual_error.