thread.c File Reference

#include <kernel/sched/thread.h>
#include <kernel/cpu/gdt.h>
#include <kernel/cpu/smp.h>
#include <kernel/init/init.h>
#include <kernel/log/log.h>
#include <kernel/log/panic.h>
#include <kernel/mem/vmm.h>
#include <kernel/sched/sched.h>
#include <kernel/sched/timer.h>
#include <kernel/sched/wait.h>
#include <kernel/sync/lock.h>
#include <stdlib.h>
#include <string.h>
#include <sys/list.h>
#include <sys/math.h>

Go to the source code of this file.

Functions
static uintptr_t	thread_id_to_offset (tid_t tid, uint64_t maxPages)
static uint64_t	thread_init (thread_t *thread, process_t *process)
thread_t *	thread_new (process_t *process)
	Creates a new thread structure.
void	thread_free (thread_t *thread)
	Frees a thread structure.
void	thread_save (thread_t *thread, const interrupt_frame_t *frame)
	Save state to a thread.
void	thread_load (thread_t *thread, interrupt_frame_t *frame)
	Load state from a thread.
void	thread_get_interrupt_frame (thread_t *thread, interrupt_frame_t *frame)
	Retrieve the interrupt frame from a thread.
bool	thread_is_note_pending (thread_t *thread)
	Check if a thread has a note pending.
uint64_t	thread_send_note (thread_t *thread, const void *buffer, uint64_t count)
	Send a note to a thread.
	SYSCALL_DEFINE (SYS_ERRNO, errno_t)
	SYSCALL_DEFINE (SYS_GETTID, tid_t)
thread_t *	thread_get_boot (void)
	Retrieves the boot thread.
uint64_t	thread_handle_page_fault (const interrupt_frame_t *frame)
	Handles a page fault that occurred in the currently running thread.
uint64_t	thread_copy_from_user (thread_t *thread, void *dest, const void *userSrc, uint64_t length)
	Safely copy data from user space.
uint64_t	thread_copy_to_user (thread_t *thread, void *dest, const void *userSrc, uint64_t length)
	Safely copy data to user space.
uint64_t	thread_copy_from_user_terminated (thread_t *thread, const void *userArray, const void *terminator, uint8_t objectSize, uint64_t maxCount, void **outArray, uint64_t *outCount)
	Safely copy a null-terminated array of objects from user space.
uint64_t	thread_copy_from_user_pathname (thread_t *thread, pathname_t *pathname, const char *userPath)
	Safely copy a string from user space and use it to initialize a pathname.
uint64_t	thread_load_atomic_from_user (thread_t *thread, atomic_uint64_t *userObj, uint64_t *outValue)
	Atomically load a 64-bit value from a user-space atomic variable.

Variables
static thread_t	bootThread
static bool	bootThreadInitalized = false

Function Documentation

SYSCALL_DEFINE() [1/2]

SYSCALL_DEFINE	(	SYS_ERRNO	,
		errno_t
	)

Definition at line 149 of file thread.c.

References errno.

SYSCALL_DEFINE() [2/2]

SYSCALL_DEFINE	(	SYS_GETTID	,
		tid_t
	)

Definition at line 154 of file thread.c.

References thread_t::id, and sched_thread().

thread_id_to_offset()

static uintptr_t thread_id_to_offset ( tid_t  tid, uint64_t  maxPages  )

static

Definition at line 22 of file thread.c.

References maxPages, PAGE_SIZE, and STACK_POINTER_GUARD_PAGES.

Referenced by thread_init().

thread_init()

static uint64_t thread_init ( thread_t *  thread, process_t *  process  )

static

Definition at line 27 of file thread.c.

References atomic_init, CONFIG_MAX_KERNEL_STACK_PAGES, CONFIG_MAX_USER_STACK_PAGES, DEREF, thread_t::entry, ERR, thread_t::error, thread_t::frame, process_t::id, thread_t::id, thread_t::kernelStack, process_threads_t::list, list_entry_init(), list_push(), process_threads_t::lock, lock_acquire(), lock_release(), LOG_DEBUG, memset(), process_threads_t::newTid, note_queue_init(), thread_t::notes, thread_t::process, thread_t::processEntry, REF, thread_t::sched, sched_thread_ctx_init(), thread_t::simd, simd_ctx_init(), stack_pointer_init(), thread_t::syscall, syscall_ctx_init(), thread_id_to_offset(), THREAD_PARKED, process_t::threads, thread_t::userStack, VMM_KERNEL_STACKS_MAX, VMM_USER_SPACE_MAX, thread_t::wait, and wait_thread_ctx_init().

Referenced by thread_get_boot(), and thread_new().

Variable Documentation

bootThread

thread_t bootThread

static

Definition at line 19 of file thread.c.

Referenced by init_early(), init_finalize(), thread_get_boot(), vmm_map_bootloader_lower_half(), and vmm_unmap_bootloader_lower_half().

bootThreadInitalized

bool bootThreadInitalized = false

static

Definition at line 20 of file thread.c.

Referenced by thread_get_boot().