starnakin/42_KFS
1
2
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fix: thread switch gets back into the isr routine but iret does not return to the correct frame

Browse Source
This commit is contained in:
0x35c
2025-11-07 16:23:30 +01:00
parent d1364f5c1f
commit a3a226ad95
4 changed files with 18 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
src/multitasking/thread.c
View File

@ -22,19 +22,18 @@ struct tcb *create_thread(struct pcb *process, void (*routine)(void))
// set esp to "skip" the 4 GPRs and eip later to be used as the context
// of the thread
new_tcb->esp = new_tcb->esp0 + STACK_SIZE - 5 * 4;
memcpy(new_tcb->esp + 4, routine, 4);
new_tcb->esp[4] = (uint32_t)routine;
new_tcb->process = process;
new_tcb->next = NULL;
new_tcb->state = NEW;
struct tcb *it = process->thread_list;
if (it) {
while (it)
it = it->next;
it = new_tcb;
}
else {
if (process->thread_list == NULL) {
process->thread_list = new_tcb;
} else {
struct tcb *it = process->thread_list;
while (it->next)
it = it->next;
it->next = new_tcb;
}
return new_tcb;