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[sw/example] demo_newlib: add destructor test

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stnolting 2024-07-05 12:53:19 +02:00
parent e3e4eb73cf
commit 4b34a9690b
1 changed files with 14 additions and 3 deletions
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17
sw/example/demo_newlib/main.c
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@ -26,6 +26,16 @@
/**@}*/
/**********************************************************************//**
* @name Print main's return code using a destructor
**************************************************************************/
void __attribute__((destructor)) main_destructor_test(void) {
int32_t main_ret = (int32_t)neorv32_cpu_csr_read(CSR_MSCRATCH);
neorv32_uart0_printf("\nDestructor: main terminated with return/exit code %i.\n", main_ret);
}
/**********************************************************************//**
* @name Max heap size (from linker script's "__neorv32_heap_size")
**************************************************************************/
@ -111,10 +121,11 @@ int main() {
// NOTE: exit is highly over-sized as it also includes clean-up functions (destructors), which
// are not required for bare-metal or RTOS applications... better use the simple 'return' or even better
// make sure main never returns. Anyway, let's check if 'exit' works.
neorv32_uart0_printf("terminating via <exit> ");
exit(0);
int exit_code = 7;
neorv32_uart0_printf("<exit> terminating by exit(%i)...\n", exit_code);
exit(exit_code);
// should never be reached
neorv32_uart0_printf("failed!n");
neorv32_uart0_printf("exit failed!\n");
return 0;
}