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Added memory leak dialog in vm_stop

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Stack, call stack and heap are evaluated to check for leaks.
This commit is contained in:
Aryadev Chavali
2023-11-02 23:25:37 +00:00
parent 4eee6e1a0a
commit f433febb22
1 changed files with 50 additions and 0 deletions
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50
vm/runtime.c
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@@ -380,10 +380,60 @@ void vm_load_call_stack(vm_t *vm, word *buffer, size_t size)
void vm_stop(vm_t *vm)
{
#if VERBOSE >= 1
bool leaks = false;
printf("[" TERM_YELLOW "DATA" TERM_RESET "]: Checking for leaks...\n");
if (vm->call_stack.ptr > 0)
{
leaks = true;
printf("\t[" TERM_RED "DATA" TERM_RESET "]: Call stack at %lu\n\t[" TERM_RED
"DATA" TERM_RESET "]\n\t[" TERM_RED "DATA" TERM_RESET "]: Call "
"stack trace:",
vm->call_stack.ptr);
for (size_t i = vm->call_stack.ptr; i > 0; --i)
{
word w = vm->call_stack.address_pointers[i - 1];
printf("\t\t%lu: %lX", vm->call_stack.ptr - i, w);
if (i != 1)
printf(", ");
printf("\n");
}
}
if (vm->heap.pages > 0)
{
leaks = true;
page_t *cur = vm->heap.beg;
size_t capacities[vm->heap.pages], total_capacity = 0;
for (size_t i = 0; i < vm->heap.pages; ++i)
{
capacities[i] = cur->available;
total_capacity += capacities[i];
}
printf("\t[" TERM_RED "DATA" TERM_RESET
"]: Heap: %luB (over %lu %s) not reclaimed\n",
total_capacity, vm->heap.pages,
vm->heap.pages == 1 ? "page" : "pages");
printf("\t[" TERM_RED "DATA" TERM_RESET "]: Complete breakdown:\n");
for (size_t i = 0; i < vm->heap.pages; i++)
printf("\t\t[%lu]: %luB bytes lost\n", i, capacities[i]);
}
if (vm->stack.ptr > 0)
{
leaks = true;
printf("\t[" TERM_RED "DATA" TERM_RESET "]: Stack: %luB not reclaimed\n",
vm->stack.ptr);
}
if (leaks)
printf("[" TERM_RED "DATA" TERM_RESET "]: Leaks found\n");
else
printf("[" TERM_GREEN "DATA" TERM_RESET "]: No leaks found\n");
#endif
free(vm->registers.data);
free(vm->program.instructions);
free(vm->stack.data);
heap_stop(&vm->heap);
free(vm->call_stack.address_pointers);
vm->registers = (registers_t){0};
vm->program = (struct Program){0};