enum ia_css_err ia_css_frame_allocate_with_buffer_size(
struct ia_css_frame **frame,
const unsigned int buffer_size_bytes,
const bool contiguous)
{
/* AM: Body coppied from frame_allocate_with_data(). */
enum ia_css_err err;
struct ia_css_frame *me = frame_create(0, 0,
IA_CSS_FRAME_FORMAT_NUM,/* Not valid format yet */
0, 0, contiguous, false);
if (me == NULL)
return IA_CSS_ERR_CANNOT_ALLOCATE_MEMORY;
/* Get the data size */
me->data_bytes = buffer_size_bytes;
err = frame_allocate_buffer_data(me);
if (err != IA_CSS_SUCCESS) {
sh_css_free(me);
return err;
}
*frame = me;
return err;
}
static struct resizor *
resizor_create(struct display *display)
{
struct resizor *resizor;
resizor = malloc(sizeof *resizor);
if (resizor == NULL)
return resizor;
memset(resizor, 0, sizeof *resizor);
resizor->window = window_create(display);
resizor->widget = frame_create(resizor->window, resizor);
window_set_title(resizor->window, "Wayland Resizor");
resizor->display = display;
window_set_key_handler(resizor->window, key_handler);
window_set_user_data(resizor->window, resizor);
widget_set_redraw_handler(resizor->widget, redraw_handler);
window_set_keyboard_focus_handler(resizor->window,
keyboard_focus_handler);
widget_set_button_handler(resizor->widget, button_handler);
resizor->height.previous = 400;
resizor->height.current = 400;
resizor->height.target = 400;
resizor->width.previous = 400;
resizor->width.current = 400;
resizor->width.target = 400;
widget_schedule_resize(resizor->widget, 400, 400);
return resizor;
}
static enum ia_css_err frame_allocate_with_data(struct ia_css_frame **frame,
unsigned int width,
unsigned int height,
enum ia_css_frame_format format,
unsigned int padded_width,
unsigned int raw_bit_depth,
bool contiguous)
{
enum ia_css_err err;
struct ia_css_frame *me = frame_create(width,
height,
format,
padded_width,
raw_bit_depth,
contiguous,
true);
if (me == NULL)
return IA_CSS_ERR_CANNOT_ALLOCATE_MEMORY;
err = ia_css_frame_init_planes(me);
if (err == IA_CSS_SUCCESS)
err = frame_allocate_buffer_data(me);
if (err != IA_CSS_SUCCESS) {
sh_css_free(me);
return err;
}
*frame = me;
return err;
}
static struct clickdot *
clickdot_create(struct display *display)
{
struct clickdot *clickdot;
clickdot = xzalloc(sizeof *clickdot);
clickdot->window = window_create(display);
clickdot->widget = frame_create(clickdot->window, clickdot);
window_set_title(clickdot->window, "Wayland ClickDot");
clickdot->display = display;
clickdot->buffer = NULL;
window_set_key_handler(clickdot->window, key_handler);
window_set_user_data(clickdot->window, clickdot);
window_set_keyboard_focus_handler(clickdot->window,
keyboard_focus_handler);
widget_set_redraw_handler(clickdot->widget, redraw_handler);
widget_set_button_handler(clickdot->widget, button_handler);
widget_set_motion_handler(clickdot->widget, motion_handler);
widget_set_resize_handler(clickdot->widget, resize_handler);
widget_set_leave_handler(clickdot->widget, leave_handler);
widget_schedule_resize(clickdot->widget, 500, 400);
clickdot->dot.x = 250;
clickdot->dot.y = 200;
clickdot->line.x = -1;
clickdot->line.y = -1;
clickdot->line.old_x = -1;
clickdot->line.old_y = -1;
clickdot->reset = 0;
return clickdot;
}
int
main(int argc, char *argv[])
{
struct editor editor;
editor.display = display_create(argc, argv);
if (editor.display == NULL) {
fprintf(stderr, "failed to create display: %m\n");
return -1;
}
wl_display_add_global_listener(display_get_display(editor.display),
global_handler, &editor);
editor.window = window_create(editor.display);
editor.widget = frame_create(editor.window, &editor);
editor.entry = text_entry_create(&editor, "Entry");
editor.editor = text_entry_create(&editor, "Editor");
window_set_title(editor.window, "Text Editor");
widget_set_redraw_handler(editor.widget, redraw_handler);
widget_set_resize_handler(editor.widget, resize_handler);
widget_set_button_handler(editor.widget, button_handler);
window_schedule_resize(editor.window, 500, 400);
display_run(editor.display);
text_entry_destroy(editor.entry);
text_entry_destroy(editor.editor);
return 0;
}
static struct view *
view_create(struct display *display,
uint32_t key, const char *filename, int fullscreen, int *view_counter)
{
struct view *view;
gchar *basename;
gchar *title;
GFile *file = NULL;
GError *error = NULL;
view = malloc(sizeof *view);
if (view == NULL)
return view;
memset(view, 0, sizeof *view);
file = g_file_new_for_commandline_arg(filename);
basename = g_file_get_basename(file);
if(!basename) {
title = g_strdup("Wayland View");
} else {
title = g_strdup_printf("Wayland View - %s", basename);
g_free(basename);
}
view->document = poppler_document_new_from_file(g_file_get_uri(file),
NULL, &error);
if(error) {
title = g_strdup("File not found");
}
view->window = window_create(display);
view->widget = frame_create(view->window, view);
window_set_title(view->window, title);
g_free(title);
view->display = display;
window_set_user_data(view->window, view);
window_set_key_handler(view->window, key_handler);
window_set_keyboard_focus_handler(view->window,
keyboard_focus_handler);
window_set_fullscreen_handler(view->window, fullscreen_handler);
window_set_close_handler(view->window, close_handler);
widget_set_button_handler(view->widget, button_handler);
widget_set_resize_handler(view->widget, resize_handler);
widget_set_redraw_handler(view->widget, redraw_handler);
view->page = 0;
view->fullscreen = fullscreen;
window_set_fullscreen(view->window, view->fullscreen);
window_schedule_resize(view->window, 500, 400);
view->view_counter = view_counter;
*view_counter += 1;
return view;
}
// FIXME: error handling (not asserts) needed in this function
static void mem_allocate_handler(struct mem_binding *b, uint8_t bits,
genpaddr_t minbase, genpaddr_t maxlimit)
{
struct capref *cap = malloc(sizeof(struct capref));
errval_t err, ret;
trace_event(TRACE_SUBSYS_MEMSERV, TRACE_EVENT_MEMSERV_ALLOC, bits);
/* refill slot allocator if needed */
err = slot_prealloc_refill(mm_ram.slot_alloc_inst);
assert(err_is_ok(err));
/* refill slab allocator if needed */
while (slab_freecount(&mm_ram.slabs) <= MINSPARENODES) {
struct capref frame;
err = msa.a.alloc(&msa.a, &frame);
assert(err_is_ok(err));
err = frame_create(frame, BASE_PAGE_SIZE * 8, NULL);
assert(err_is_ok(err));
void *buf;
err = vspace_map_one_frame(&buf, BASE_PAGE_SIZE * 8, frame, NULL, NULL);
if (err_is_fail(err)) {
DEBUG_ERR(err, "vspace_map_one_frame failed");
assert(buf);
}
slab_grow(&mm_ram.slabs, buf, BASE_PAGE_SIZE * 8);
}
ret = mymm_alloc(cap, bits, minbase, maxlimit);
if (err_is_ok(ret)) {
mem_avail -= 1UL << bits;
} else {
// DEBUG_ERR(ret, "allocation of %d bits in % " PRIxGENPADDR "-%" PRIxGENPADDR " failed",
// bits, minbase, maxlimit);
*cap = NULL_CAP;
}
/* Reply */
err = b->tx_vtbl.allocate_response(b, MKCONT(allocate_response_done, cap),
ret, *cap);
if (err_is_fail(err)) {
if (err_no(err) == FLOUNDER_ERR_TX_BUSY) {
struct pending_reply *r = malloc(sizeof(struct pending_reply));
assert(r != NULL);
r->b = b;
r->err = ret;
r->cap = cap;
err = b->register_send(b, get_default_waitset(), MKCONT(retry_reply,r));
assert(err_is_ok(err));
} else {
DEBUG_ERR(err, "failed to reply to memory request");
allocate_response_done(cap);
}
}
}
static struct image *
image_create(struct display *display, const char *filename,
int *image_counter)
{
struct image *image;
char *b, *copy, title[512];;
image = malloc(sizeof *image);
if (image == NULL)
return image;
memset(image, 0, sizeof *image);
copy = strdup(filename);
b = basename(copy);
snprintf(title, sizeof title, "Wayland Image - %s", b);
free(copy);
image->filename = strdup(filename);
image->image = load_cairo_surface(filename);
if (!image->image) {
fprintf(stderr, "could not find the image %s!\n", b);
free(image);
return NULL;
}
image->window = window_create(display);
image->widget = frame_create(image->window, image);
window_set_title(image->window, title);
image->display = display;
image->image_counter = image_counter;
*image_counter += 1;
image->initialized = false;
window_set_user_data(image->window, image);
widget_set_redraw_handler(image->widget, redraw_handler);
widget_set_resize_handler(image->widget, resize_handler);
window_set_keyboard_focus_handler(image->window,
keyboard_focus_handler);
window_set_fullscreen_handler(image->window, fullscreen_handler);
window_set_close_handler(image->window, close_handler);
widget_set_enter_handler(image->widget, enter_handler);
widget_set_motion_handler(image->widget, motion_handler);
widget_set_button_handler(image->widget, button_handler);
widget_set_axis_handler(image->widget, axis_handler);
window_set_key_handler(image->window, key_handler);
widget_schedule_resize(image->widget, 500, 400);
return image;
}
int test_01()
{
FILE* log = stdout;
int frame_size = 10;
int data_size = (int)1e6;
int* data_in = (int*)calloc(data_size, sizeof(int));
int* data_out = NULL;
int times = 100;
int i = 0;
transmitter_t transmitter = transmitter_create(log, frame_size, data_in, data_size);
receiver_t receiver = receiver_create(log, frame_size, data_size);
transmitter->start(transmitter);
receiver->start(receiver);
L_Loop:
frame_t frame_in = transmitter->transmit_frame(transmitter);
if (frame_in == NULL) goto L_Stop;
frame_display(frame_in);
/* channel emulation */
frame_t frame_out = frame_create(frame_size);
frame_out = frame_cpy(frame_out, frame_in);
frame_display(frame_out);
receiver->receive_frame(receiver, frame_out, frame_in);
goto L_Loop;
L_Stop:
transmitter->stop(transmitter);
receiver->stop(receiver);
data_out = receiver_get_received_data(receiver);
if (cmp_data(data_in, data_out, data_size))
printf("test: OK\n");
else
printf("test: FAIL\n");
//print_data(data_in, data_size);
//print_data(data_out, data_size);
free(data_in);
receiver_destroy(receiver);
transmitter_destroy(transmitter);
return 0;
}
errval_t memserv_alloc(struct capref *ret, uint8_t bits, genpaddr_t minbase,
genpaddr_t maxlimit)
{
errval_t err;
assert(bits >= MINSIZEBITS);
/* refill slot allocator if needed */
err = slot_prealloc_refill(mm_ram.slot_alloc_inst);
assert(err_is_ok(err));
/* refill slab allocator if needed */
size_t freecount = slab_freecount(&mm_ram.slabs);
while (!refilling && (freecount <= MINSPARENODES)) {
refilling = true;
struct capref frame;
err = msa.a.alloc(&msa.a, &frame);
assert(err_is_ok(err));
size_t retsize;
err = frame_create(frame, BASE_PAGE_SIZE * 8, &retsize);
assert(err_is_ok(err));
assert(retsize % BASE_PAGE_SIZE == 0);
assert(retsize >= BASE_PAGE_SIZE);
void *buf;
err = paging_map_frame(get_current_paging_state(), &buf, retsize, frame, NULL, NULL);
if (err_is_fail(err)) {
DEBUG_ERR(err, "paging_map_frame failed");
assert(buf);
}
slab_grow(&mm_ram.slabs, buf, retsize);
freecount = slab_freecount(&mm_ram.slabs);
}
if (freecount > MINSPARENODES) {
refilling = false;
}
if(maxlimit == 0) {
err = mm_alloc(&mm_ram, bits, ret, NULL);
} else {
err = mm_alloc_range(&mm_ram, bits, minbase, maxlimit, ret, NULL);
}
if (err_is_fail(err)) {
debug_printf("in mem_serv:mymm_alloc(bits=%"PRIu8", minbase=%"PRIxGENPADDR
", maxlimit=%"PRIxGENPADDR")\n", bits, minbase, maxlimit);
DEBUG_ERR(err, "mem_serv:mymm_alloc");
}
return err;
}
/* create various resources like shrapnells */
void client_game_create()
{
frame_create();
shrapnells_init();
shine_load();
init_angles();
/* background */
bkgnd = stk_surface_create( SDL_SWSURFACE,
stk_display->w, stk_display->h );
SDL_SetColorKey( bkgnd, 0, 0 );
stk_surface_fill( bkgnd, 0,0,-1,-1, 0x0 );
}
static struct ModeInfo *
create_wscreensaver_instance(struct wscreensaver *screensaver,
struct wl_output *output, int width, int height)
{
static int instance;
struct ModeInfo *mi;
struct rectangle drawarea;
mi = calloc(1, sizeof *mi);
if (!mi)
return NULL;
if (demo_mode)
mi->window = window_create(screensaver->display);
else
mi->window = window_create_custom(screensaver->display);
if (!mi->window) {
fprintf(stderr, "%s: creating a window failed.\n", progname);
free(mi);
return NULL;
}
window_set_title(mi->window, progname);
if (screensaver->interface && !demo_mode) {
mi->widget = window_add_widget(mi->window, mi);
screensaver_set_surface(screensaver->interface,
window_get_wl_surface(mi->window),
output);
} else {
mi->widget = frame_create(mi->window, mi);
}
widget_set_redraw_handler(mi->widget, redraw_handler);
mi->priv = screensaver;
mi->eglctx = EGL_NO_CONTEXT;
mi->instance_number = instance++; /* XXX */
widget_get_allocation(mi->widget, &drawarea);
mi->width = drawarea.width;
mi->height = drawarea.height;
screensaver->plugin->init(mi);
window_schedule_resize(mi->window, width, height);
return mi;
}
static struct demoapp *
demoapp_create(struct display *display)
{
struct demoapp *app;
app = calloc(1, sizeof *app);
if (!app)
return NULL;
app->egl = egl_state_create(display_get_display(display));
app->display = display;
display_set_user_data(app->display, app);
app->window = window_create(app->display);
app->widget = frame_create(app->window, app);
window_set_title(app->window, "Wayland Sub-surface Demo");
window_set_key_handler(app->window, key_handler);
window_set_user_data(app->window, app);
window_set_keyboard_focus_handler(app->window, keyboard_focus_handler);
widget_set_redraw_handler(app->widget, redraw_handler);
widget_set_resize_handler(app->widget, resize_handler);
app->subsurface = window_add_subsurface(app->window, app,
int_to_mode(option_red_mode));
widget_set_redraw_handler(app->subsurface, sub_redraw_handler);
widget_set_resize_handler(app->subsurface, sub_resize_handler);
if (app->egl && !option_no_triangle)
app->triangle = triangle_create(app->window, app->egl);
/* minimum size */
widget_schedule_resize(app->widget, 100, 100);
/* initial size */
widget_schedule_resize(app->widget, 400, 300);
app->animate = 1;
return app;
}
enum ia_css_err ia_css_frame_create_from_info(struct ia_css_frame **frame,
const struct ia_css_frame_info *info)
{
enum ia_css_err err = IA_CSS_SUCCESS;
struct ia_css_frame *me;
ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
"ia_css_frame_create_from_info() enter:\n");
if (frame == NULL || info == NULL) {
ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
"ia_css_frame_create_from_info() leave:"
" invalid arguments\n");
return IA_CSS_ERR_INVALID_ARGUMENTS;
}
me = frame_create(info->res.width,
info->res.height,
info->format,
info->padded_width,
info->raw_bit_depth,
false,
false);
if (me == NULL) {
ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
"ia_css_frame_create_from_info() leave:"
" frame create failed\n");
return IA_CSS_ERR_CANNOT_ALLOCATE_MEMORY;
}
err = ia_css_frame_init_planes(me);
if (err == IA_CSS_SUCCESS)
*frame = me;
else
sh_css_free(me);
ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "ia_css_frame_create_from_info() leave:\n");
return err;
}
int
main(int argc, char *argv[])
{
struct editor editor;
memset(&editor, 0, sizeof editor);
editor.display = display_create(argc, argv);
if (editor.display == NULL) {
fprintf(stderr, "failed to create display: %m\n");
return -1;
}
display_set_user_data(editor.display, &editor);
display_set_global_handler(editor.display, global_handler);
editor.window = window_create(editor.display);
editor.widget = frame_create(editor.window, &editor);
editor.entry = text_entry_create(&editor, "Entry");
editor.editor = text_entry_create(&editor, "Editor");
window_set_title(editor.window, "Text Editor");
window_set_key_handler(editor.window, key_handler);
window_set_user_data(editor.window, &editor);
widget_set_redraw_handler(editor.widget, redraw_handler);
widget_set_resize_handler(editor.widget, resize_handler);
widget_set_button_handler(editor.widget, editor_button_handler);
window_schedule_resize(editor.window, 500, 400);
display_run(editor.display);
text_entry_destroy(editor.entry);
text_entry_destroy(editor.editor);
return 0;
}
/**
* \brief Create mappings
*
* \param state The object metadata
* \param frame An empty slot to place the frame capability in
* \param req_size The required amount by the application
* \param retbuf Pointer to return the mapped buffer
* \param retsize The actual size returned
*
* This function will returns a special error code if frame_create
* fails due to the constrains to the memory server (amount of memory
* or region of memory). This is to facilitate retrying with different
* constraints.
*/
errval_t vspace_mmu_aware_map(struct vspace_mmu_aware *state, size_t req_size,
void **retbuf, size_t *retsize)
{
errval_t err;
struct capref frame;
// Calculate how much still to map in
size_t origsize = req_size;
assert(state->mapoffset >= state->offset);
if(state->mapoffset - state->offset > req_size) {
req_size = 0;
} else {
req_size -= state->mapoffset - state->offset;
}
size_t alloc_size = ROUND_UP(req_size, BASE_PAGE_SIZE);
size_t ret_size = 0;
if (req_size > 0) {
#if __x86_64__
if ((state->vregion.flags & VREGION_FLAGS_HUGE) &&
(state->mapoffset & HUGE_PAGE_MASK) == 0)
{
// this is an opportunity to switch to 1G pages if requested.
// we know that we can use large pages without jumping through hoops
// if state->vregion.flags has VREGION_FLAGS_HUGE set and
// mapoffset is aligned to at least HUGE_PAGE_SIZE.
alloc_size = ROUND_UP(req_size, HUGE_PAGE_SIZE);
// goto allocation directly so we can avoid nasty code interaction
// between #if __x86_64__ and the size checks, we want to be able
// to use 2M pages on x86_64 also. -SG, 2015-04-30.
goto allocate;
}
#endif
if ((state->vregion.flags & VREGION_FLAGS_LARGE) &&
(state->mapoffset & LARGE_PAGE_MASK) == 0)
{
// this is an opportunity to switch to 2M pages if requested.
// we know that we can use large pages without jumping through hoops
// if state->vregion.flags has VREGION_FLAGS_LARGE set and
// mapoffset is aligned to at least LARGE_PAGE_SIZE.
alloc_size = ROUND_UP(req_size, LARGE_PAGE_SIZE);
}
// Create frame of appropriate size
allocate:
err = state->slot_alloc->alloc(state->slot_alloc, &frame);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_SLOT_ALLOC_NO_SPACE);
}
err = frame_create(frame, alloc_size, &ret_size);
if (err_is_fail(err)) {
if (err_no(err) == LIB_ERR_RAM_ALLOC_MS_CONSTRAINTS) {
// we can only get 4k frames for now; retry with 4k
if (alloc_size > BASE_PAGE_SIZE && req_size <= BASE_PAGE_SIZE) {
alloc_size = BASE_PAGE_SIZE;
goto allocate;
}
return err_push(err, LIB_ERR_FRAME_CREATE_MS_CONSTRAINTS);
}
return err_push(err, LIB_ERR_FRAME_CREATE);
}
assert(ret_size >= req_size);
origsize += ret_size - req_size;
req_size = ret_size;
if (state->consumed + req_size > state->size) {
err = cap_delete(frame);
if (err_is_fail(err)) {
debug_err(__FILE__, __func__, __LINE__, err,
"cap_delete failed");
}
state->slot_alloc->free(state->slot_alloc, frame);
return LIB_ERR_VSPACE_MMU_AWARE_NO_SPACE;
}
// Map it in
err = state->memobj.m.f.fill(&state->memobj.m, state->mapoffset, frame,
req_size);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_MEMOBJ_FILL);
}
err = state->memobj.m.f.pagefault(&state->memobj.m, &state->vregion,
state->mapoffset, 0);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_MEMOBJ_PAGEFAULT_HANDLER);
}
}
// Return buffer
genvaddr_t gvaddr = vregion_get_base_addr(&state->vregion) + state->offset;
*retbuf = (void*)vspace_genvaddr_to_lvaddr(gvaddr);
*retsize = origsize;
state->mapoffset += req_size;
state->offset += origsize;
state->consumed += origsize;
return SYS_ERR_OK;
}
static errval_t elf_allocate(void *state, genvaddr_t base, size_t size,
uint32_t flags, void **retbase)
{
errval_t err;
struct spawninfo *si = state;
// Increase size by space wasted on first page due to page-alignment
size_t base_offset = BASE_PAGE_OFFSET(base);
size += base_offset;
base -= base_offset;
// Page-align
size = ROUND_UP(size, BASE_PAGE_SIZE);
cslot_t vspace_slot = si->elfload_slot;
// Allocate the frames
size_t sz = 0;
for (lpaddr_t offset = 0; offset < size; offset += sz) {
sz = 1UL << log2floor(size - offset);
struct capref frame = {
.cnode = si->segcn,
.slot = si->elfload_slot++,
};
err = frame_create(frame, sz, NULL);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_FRAME_CREATE);
}
}
cslot_t spawn_vspace_slot = si->elfload_slot;
cslot_t new_slot_count = si->elfload_slot - vspace_slot;
// create copies of the frame capabilities for spawn vspace
for (int copy_idx = 0; copy_idx < new_slot_count; copy_idx++) {
struct capref frame = {
.cnode = si->segcn,
.slot = vspace_slot + copy_idx,
};
struct capref spawn_frame = {
.cnode = si->segcn,
.slot = si->elfload_slot++,
};
err = cap_copy(spawn_frame, frame);
if (err_is_fail(err)) {
// TODO: make debug printf
printf("cap_copy failed for src_slot = %"PRIuCSLOT", dest_slot = %"PRIuCSLOT"\n", frame.slot, spawn_frame.slot);
return err_push(err, LIB_ERR_CAP_COPY);
}
}
/* Map into my vspace */
struct memobj *memobj = malloc(sizeof(struct memobj_anon));
if (!memobj) {
return LIB_ERR_MALLOC_FAIL;
}
struct vregion *vregion = malloc(sizeof(struct vregion));
if (!vregion) {
return LIB_ERR_MALLOC_FAIL;
}
// Create the objects
err = memobj_create_anon((struct memobj_anon*)memobj, size, 0);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_MEMOBJ_CREATE_ANON);
}
err = vregion_map(vregion, get_current_vspace(), memobj, 0, size,
VREGION_FLAGS_READ_WRITE);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_VSPACE_MAP);
}
for (lvaddr_t offset = 0; offset < size; offset += sz) {
sz = 1UL << log2floor(size - offset);
struct capref frame = {
.cnode = si->segcn,
.slot = vspace_slot++,
};
genvaddr_t genvaddr = vspace_lvaddr_to_genvaddr(offset);
err = memobj->f.fill(memobj, genvaddr, frame, sz);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_MEMOBJ_FILL);
}
err = memobj->f.pagefault(memobj, vregion, offset, 0);
if (err_is_fail(err)) {
DEBUG_ERR(err, "lib_err_memobj_pagefault_handler");
return err_push(err, LIB_ERR_MEMOBJ_PAGEFAULT_HANDLER);
}
}
/* Map into spawn vspace */
struct memobj *spawn_memobj = NULL;
struct vregion *spawn_vregion = NULL;
err = spawn_vspace_map_anon_fixed_attr(si, base, size, &spawn_vregion,
&spawn_memobj,
elf_to_vregion_flags(flags));
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_VSPACE_MAP);
}
for (lvaddr_t offset = 0; offset < size; offset += sz) {
sz = 1UL << log2floor(size - offset);
struct capref frame = {
.cnode = si->segcn,
.slot = spawn_vspace_slot++,
};
genvaddr_t genvaddr = vspace_lvaddr_to_genvaddr(offset);
err = memobj->f.fill(spawn_memobj, genvaddr, frame, sz);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_MEMOBJ_FILL);
}
err = spawn_memobj->f.pagefault(spawn_memobj, spawn_vregion, offset, 0);
if (err_is_fail(err)) {
DEBUG_ERR(err, "lib_err_memobj_pagefault_handler");
return err_push(err, LIB_ERR_MEMOBJ_PAGEFAULT_HANDLER);
}
}
genvaddr_t genvaddr = vregion_get_base_addr(vregion) + base_offset;
*retbase = (void*)vspace_genvaddr_to_lvaddr(genvaddr);
return SYS_ERR_OK;
}
/**
* \brief Load the elf image
*/
errval_t spawn_arch_load(struct spawninfo *si,
lvaddr_t binary, size_t binary_size,
genvaddr_t *entry, void** arch_info)
{
errval_t err;
// Reset the elfloader_slot
si->elfload_slot = 0;
struct capref cnode_cap = {
.cnode = si->rootcn,
.slot = ROOTCN_SLOT_SEGCN,
};
err = cnode_create_raw(cnode_cap, &si->segcn, DEFAULT_CNODE_SLOTS, NULL);
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_CREATE_SEGCN);
}
// TLS is NYI
si->tls_init_base = 0;
si->tls_init_len = si->tls_total_len = 0;
// Load the binary
err = elf_load(EM_HOST, elf_allocate, si, binary, binary_size, entry);
if (err_is_fail(err)) {
return err;
}
struct Elf32_Shdr* got_shdr =
elf32_find_section_header_name(binary, binary_size, ".got");
if (got_shdr)
{
*arch_info = (void*)got_shdr->sh_addr;
}
else {
return SPAWN_ERR_LOAD;
}
return SYS_ERR_OK;
}
void spawn_arch_set_registers(void *arch_load_info,
dispatcher_handle_t handle,
arch_registers_state_t *enabled_area,
arch_registers_state_t *disabled_area)
{
assert(arch_load_info != NULL);
uintptr_t got_base = (uintptr_t)arch_load_info;
struct dispatcher_shared_arm* disp_arm = get_dispatcher_shared_arm(handle);
disp_arm->got_base = got_base;
enabled_area->regs[REG_OFFSET(PIC_REGISTER)] = got_base;
disabled_area->regs[REG_OFFSET(PIC_REGISTER)] = got_base;
#ifndef __ARM_ARCH_7M__ //armv7-m does not support these flags
enabled_area->named.cpsr = CPSR_F_MASK | ARM_MODE_USR;
disabled_area->named.cpsr = CPSR_F_MASK | ARM_MODE_USR;
#endif
}
static errval_t elf_allocate(void *state, genvaddr_t base, size_t size,
uint32_t flags, void **retbase)
{
errval_t err;
lvaddr_t vaddr;
size_t used_size;
struct spawninfo *si = state;
// Increase size by space wasted on first page due to page-alignment
size_t base_offset = BASE_PAGE_OFFSET(base);
size += base_offset;
base -= base_offset;
// Page-align
size = ROUND_UP(size, BASE_PAGE_SIZE);
cslot_t vspace_slot = si->elfload_slot;
// Step 1: Allocate the frames
size_t sz = 0;
for (lpaddr_t offset = 0; offset < size; offset += sz) {
sz = 1UL << log2floor(size - offset);
struct capref frame = {
.cnode = si->segcn,
.slot = si->elfload_slot++,
};
err = frame_create(frame, sz, NULL);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_FRAME_CREATE);
}
}
cslot_t spawn_vspace_slot = si->elfload_slot;
cslot_t new_slot_count = si->elfload_slot - vspace_slot;
// Step 2: create copies of the frame capabilities for child vspace
for (int copy_idx = 0; copy_idx < new_slot_count; copy_idx++) {
struct capref frame = {
.cnode = si->segcn,
.slot = vspace_slot + copy_idx,
};
struct capref spawn_frame = {
.cnode = si->segcn,
.slot = si->elfload_slot++,
};
err = cap_copy(spawn_frame, frame);
if (err_is_fail(err)) {
debug_printf("cap_copy failed for src_slot = %"PRIuCSLOT
", dest_slot = %"PRIuCSLOT"\n", frame.slot,
spawn_frame.slot);
return err_push(err, LIB_ERR_CAP_COPY);
}
}
// Step 3: map into own vspace
// Get virtual address range to hold the module
void *vaddr_range;
err = paging_alloc(get_current_paging_state(), &vaddr_range, size);
if (err_is_fail(err)) {
debug_printf("elf_allocate: paging_alloc failed\n");
return (err);
}
// map allocated physical memory in virutal memory of parent process
vaddr = (lvaddr_t)vaddr_range;
used_size = size;
while (used_size > 0) {
struct capref frame = {
.cnode = si->segcn,
.slot = vspace_slot++,
}; // find out the size of the frame
struct frame_identity id;
err = invoke_frame_identify(frame, &id);
assert(err_is_ok(err));
size_t slot_size = (1UL << id.bits);
// map frame to provide physical memory backing
err = paging_map_fixed_attr(get_current_paging_state(), vaddr, frame, slot_size,
VREGION_FLAGS_READ_WRITE);
if (err_is_fail(err)) {
debug_printf("elf_allocate: paging_map_fixed_attr failed\n");
return err;
}
used_size -= slot_size;
vaddr += slot_size;
} // end while:
// Step 3: map into new process
struct paging_state *cp = si->vspace;
// map allocated physical memory in virutal memory of child process
vaddr = (lvaddr_t)base;
used_size = size;
while (used_size > 0) {
struct capref frame = {
.cnode = si->segcn,
.slot = spawn_vspace_slot++,
};
// find out the size of the frame
struct frame_identity id;
err = invoke_frame_identify(frame, &id);
assert(err_is_ok(err));
size_t slot_size = (1UL << id.bits);
// map frame to provide physical memory backing
err = paging_map_fixed_attr(cp, vaddr, frame, slot_size,
elf_to_vregion_flags(flags));
if (err_is_fail(err)) {
debug_printf("elf_allocate: paging_map_fixed_attr failed\n");
return err;
}
used_size -= slot_size;
vaddr += slot_size;
} // end while:
*retbase = (void*) vaddr_range + base_offset;
return SYS_ERR_OK;
} // end function: elf_allocate
/**
* \brief Load the elf image
*/
errval_t spawn_arch_load(struct spawninfo *si,
lvaddr_t binary, size_t binary_size,
genvaddr_t *entry, void** arch_info)
{
errval_t err;
// Reset the elfloader_slot
si->elfload_slot = 0;
struct capref cnode_cap = {
.cnode = si->rootcn,
.slot = ROOTCN_SLOT_SEGCN,
};
err = cnode_create_raw(cnode_cap, &si->segcn, DEFAULT_CNODE_SLOTS, NULL);
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_CREATE_SEGCN);
}
// TLS is NYI
si->tls_init_base = 0;
si->tls_init_len = si->tls_total_len = 0;
//debug_printf("spawn_arch_load: about to load elf %p\n", elf_allocate);
// Load the binary
err = elf_load(EM_HOST, elf_allocate, si, binary, binary_size, entry);
if (err_is_fail(err)) {
return err;
}
//debug_printf("hello here\n");
struct Elf32_Shdr* got_shdr =
elf32_find_section_header_name(binary, binary_size, ".got");
if (got_shdr)
{
*arch_info = (void*)got_shdr->sh_addr;
}
else {
return SPAWN_ERR_LOAD;
}
return SYS_ERR_OK;
}
void spawn_arch_set_registers(void *arch_load_info,
dispatcher_handle_t handle,
arch_registers_state_t *enabled_area,
arch_registers_state_t *disabled_area)
{
assert(arch_load_info != NULL);
uintptr_t got_base = (uintptr_t)arch_load_info;
struct dispatcher_shared_arm* disp_arm = get_dispatcher_shared_arm(handle);
disp_arm->got_base = got_base;
enabled_area->regs[REG_OFFSET(PIC_REGISTER)] = got_base;
enabled_area->named.cpsr = CPSR_F_MASK | ARM_MODE_USR;
disabled_area->regs[REG_OFFSET(PIC_REGISTER)] = got_base;
disabled_area->named.cpsr = CPSR_F_MASK | ARM_MODE_USR;
}
int main( int argc, char *argv[] ){
int ret = 0;
signed char option;
int i = 0;
int lastopt = 0;
bool interactive = false;
bool load_libs = true;
bool set_a_gc_profile = false;
unsigned new_gc_profile = 0;
stack_frame_t *global_frame;
if ( argc < 2 ){
// By default, go into an REPL
interactive = true;
} else {
// otherwise parse options
lastopt = 1;
for ( i = 1; i < argc && argv[i][0] == '-'; i++ ){
option = argv[i][1];
switch ( option ){
case 'i':
interactive = true;
break;
case 'h':
print_help( );
exit( 0 );
break;
case 'L':
load_libs = false;
break;
case 'g':
{
char *profile = argv[++i];
set_a_gc_profile = true;
if ( strcmp( profile, "fast" ) == 0 ){
new_gc_profile = GC_PROFILE_FAST;
} else if ( strcmp( profile, "balanced" ) == 0 ){
new_gc_profile = GC_PROFILE_BALANCED;
} else if ( strcmp( profile, "lowmem" ) == 0 ){
new_gc_profile = GC_PROFILE_LOWMEM;
} else {
printf( "Unknown garbage collector profile \"%s\", "
"using \"balanced\" instead...\n", profile );
new_gc_profile = GC_PROFILE_BALANCED;
}
}
case 'v':
break;
default:
print_help( );
exit( 1 );
break;
}
/* This keeps track of where the argument after the current argument is,
in order to find the filenames after option parsing is done. */
lastopt = i + 1;
}
}
// print some info about the interpreter going into a REPL
if ( interactive ){
printf( "%s\n", GOJIRA_BUILD_NAME );
}
// Initialize the global interpreter state
global_frame = frame_create( NULL, NULL, MAKE_ENV );
init_global_frame( global_frame );
if ( set_a_gc_profile ){
gc_set_profile( get_current_gc( global_frame ), new_gc_profile );
}
// Load the 'base' library for needed primatives
if ( load_libs ){
evaluate_file( global_frame, BASE_LIB );
}
make_argument_var( global_frame, lastopt, argc, argv );
if ( lastopt ){
evaluate_file( global_frame, argv[lastopt] );
}
// Go into the REPL if the interpreter flag is set
if ( interactive ){
read_eval_print( global_frame );
}
// Clean up the global frame, and free all tokens left in the token cache
gc_collect( get_current_gc( global_frame ));
destroy_token_cache( );
return ret;
}
void _DbgNewFrame(int l, const char* name)
{
// Create a new frame and add it as an element on the frames' list
frames=linked_list_element_push_front(frames, frame_create(l, name));
}
/**
* \brief Setup arguments and environment
*
* \param argv Command-line arguments, NULL-terminated
* \param envp Environment, NULL-terminated
*/
static errval_t spawn_setup_env(struct spawninfo *si,
char *const argv[], char *const envp[])
{
errval_t err;
// Create frame (actually multiple pages) for arguments
si->argspg.cnode = si->taskcn;
si->argspg.slot = TASKCN_SLOT_ARGSPAGE;
struct capref spawn_argspg = {
.cnode = si->taskcn,
.slot = TASKCN_SLOT_ARGSPAGE2,
};
err = frame_create(si->argspg, ARGS_SIZE, NULL);
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_CREATE_ARGSPG);
}
err = cap_copy(spawn_argspg, si->argspg);
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_CREATE_ARGSPG);
}
/* Map in args frame */
genvaddr_t spawn_args_base;
err = spawn_vspace_map_one_frame(si, &spawn_args_base, spawn_argspg, ARGS_SIZE);
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_MAP_ARGSPG_TO_NEW);
}
void *argspg;
err = vspace_map_one_frame(&argspg, ARGS_SIZE, si->argspg, NULL, NULL);
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_MAP_ARGSPG_TO_SELF);
}
/* Layout of arguments page:
* struct spawn_domain_params; // contains pointers to other fields
* char buf[]; // NUL-terminated strings for arguments and environment
* vspace layout data follows the string data
*/
struct spawn_domain_params *params = argspg;
char *buf = (char *)(params + 1);
size_t buflen = ARGS_SIZE - (buf - (char *)argspg);
/* Copy command-line arguments */
int i;
size_t len;
for (i = 0; argv[i] != NULL; i++) {
len = strlen(argv[i]) + 1;
if (len > buflen) {
return SPAWN_ERR_ARGSPG_OVERFLOW;
}
strcpy(buf, argv[i]);
params->argv[i] = buf - (char *)argspg + (char *)(lvaddr_t)spawn_args_base;
buf += len;
buflen -= len;
}
assert(i <= MAX_CMDLINE_ARGS);
int argc = i;
params->argv[i] = NULL;
/* Copy environment strings */
for (i = 0; envp[i] != NULL; i++) {
len = strlen(envp[i]) + 1;
if (len > buflen) {
return SPAWN_ERR_ARGSPG_OVERFLOW;
}
strcpy(buf, envp[i]);
params->envp[i] = buf - (char *)argspg + (char *)(lvaddr_t)spawn_args_base;
buf += len;
buflen -= len;
}
assert(i <= MAX_ENVIRON_VARS);
params->envp[i] = NULL;
/* Serialise vspace data */
// XXX: align buf to next word
char *vspace_buf = (char *)ROUND_UP((lvaddr_t)buf, sizeof(uintptr_t));
buflen -= vspace_buf - buf;
// FIXME: currently just the pmap is serialised
err = si->vspace->pmap->f.serialise(si->vspace->pmap, vspace_buf, buflen);
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_SERIALISE_VSPACE);
}
/* Setup environment pointer and vspace pointer */
params->argc = argc;
params->vspace_buf = (char *)vspace_buf - (char *)argspg
+ (char *)(lvaddr_t)spawn_args_base;
params->vspace_buf_len = buflen;
// Setup TLS data
params->tls_init_base = (void *)vspace_genvaddr_to_lvaddr(si->tls_init_base);
params->tls_init_len = si->tls_init_len;
params->tls_total_len = si->tls_total_len;
arch_registers_state_t *enabled_area =
dispatcher_get_enabled_save_area(si->handle);
registers_set_param(enabled_area, (uintptr_t)spawn_args_base);
return SYS_ERR_OK;
}
/**
* Copies caps from inheritcnode into destination cnode,
* ignores caps that to not exist.
*
* \param inheritcn Source cnode
* \param inherit_slot Source cnode slot
* \param destcn Target cnode
* \param destcn_slot Target cnode slot
*
* \retval SYS_ERR_OK Copy to target was successful or source cap
* did not exist.
* \retval SPAWN_ERR_COPY_INHERITCN_CAP Error in cap_copy
*/
static errval_t spawn_setup_inherited_cap(struct cnoderef inheritcn,
capaddr_t inherit_slot,
struct cnoderef destcn,
capaddr_t destcn_slot)
{
errval_t err;
struct capref src;
src.cnode = inheritcn;
src.slot = inherit_slot;;
// Create frame (actually multiple pages) for fds
struct capref dest;
dest.cnode = destcn;
dest.slot = destcn_slot;
err = cap_copy(dest, src);
if (err_no(err) == SYS_ERR_SOURCE_CAP_LOOKUP) {
// there was no fdcap to inherit, continue
return SYS_ERR_OK;
} else if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_COPY_INHERITCN_CAP);
}
return SYS_ERR_OK;
}
/**
* \brief Setup the dispatcher frame
*/
static errval_t spawn_setup_dispatcher(struct spawninfo *si,
coreid_t core_id,
const char *name,
genvaddr_t entry,
void* arch_info)
{
errval_t err;
/* Create dispatcher frame (in taskcn) */
si->dispframe.cnode = si->taskcn;
si->dispframe.slot = TASKCN_SLOT_DISPFRAME;
struct capref spawn_dispframe = {
.cnode = si->taskcn,
.slot = TASKCN_SLOT_DISPFRAME2,
};
err = frame_create(si->dispframe, (1 << DISPATCHER_FRAME_BITS), NULL);
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_CREATE_DISPATCHER_FRAME);
}
err = cap_copy(spawn_dispframe, si->dispframe);
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_CREATE_DISPATCHER_FRAME);
}
/* Map in dispatcher frame */
dispatcher_handle_t handle;
err = vspace_map_one_frame((void**)&handle, 1ul << DISPATCHER_FRAME_BITS,
si->dispframe, NULL, NULL);
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_MAP_DISPATCHER_TO_SELF);
}
genvaddr_t spawn_dispatcher_base;
err = spawn_vspace_map_one_frame(si, &spawn_dispatcher_base, spawn_dispframe,
1UL << DISPATCHER_FRAME_BITS);
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_MAP_DISPATCHER_TO_NEW);
}
/* Set initial state */
// XXX: Confusion address translation about l/gen/addr in entry
struct dispatcher_shared_generic *disp =
get_dispatcher_shared_generic(handle);
struct dispatcher_generic *disp_gen = get_dispatcher_generic(handle);
arch_registers_state_t *enabled_area =
dispatcher_get_enabled_save_area(handle);
arch_registers_state_t *disabled_area =
dispatcher_get_disabled_save_area(handle);
/* Place core_id */
disp_gen->core_id = core_id;
/* place eh information */
disp_gen->eh_frame = si->eh_frame;
disp_gen->eh_frame_size = si->eh_frame_size;
disp_gen->eh_frame_hdr = si->eh_frame_hdr;
disp_gen->eh_frame_hdr_size = si->eh_frame_hdr_size;
/* Setup dispatcher and make it runnable */
disp->udisp = spawn_dispatcher_base;
disp->disabled = 1;
disp->fpu_trap = 1;
#ifdef __k1om__
disp->xeon_phi_id = disp_xeon_phi_id();
#endif
// Copy the name for debugging
const char *copy_name = strrchr(name, '/');
if (copy_name == NULL) {
copy_name = name;
} else {
copy_name++;
}
strncpy(disp->name, copy_name, DISP_NAME_LEN);
spawn_arch_set_registers(arch_info, handle, enabled_area, disabled_area);
registers_set_entry(disabled_area, entry);
si->handle = handle;
return SYS_ERR_OK;
}
errval_t spawn_map_bootinfo(struct spawninfo *si, genvaddr_t *retvaddr)
{
errval_t err;
struct capref src = {
.cnode = cnode_task,
.slot = TASKCN_SLOT_BOOTINFO
};
struct capref dest = {
.cnode = si->taskcn,
.slot = TASKCN_SLOT_BOOTINFO
};
err = cap_copy(dest, src);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_CAP_COPY);
}
err = spawn_vspace_map_one_frame(si, retvaddr, dest, BOOTINFO_SIZE);
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_MAP_BOOTINFO);
}
return SYS_ERR_OK;
}
/**
* \brief Retrive the commandline args of #name
*
* The arguments are malloced into a new space so need to be freed after use
*/
errval_t spawn_get_cmdline_args(struct mem_region *module,
char **retargs)
{
assert(module != NULL && retargs != NULL);
/* Get the cmdline args */
const char *args = getopt_module(module);
/* Allocate space */
*retargs = malloc(sizeof(char) * strlen(args));
if (!retargs) {
return LIB_ERR_MALLOC_FAIL;
}
/* Copy args */
strcpy(*retargs, args);
return SYS_ERR_OK;
}
int
main(int argc, char *argv[])
{
struct editor editor;
int i;
uint32_t click_to_show = 0;
const char *preferred_language = NULL;
for (i = 1; i < argc; i++) {
if (strcmp("--click-to-show", argv[i]) == 0)
click_to_show = 1;
else if (strcmp("--preferred-language", argv[i]) == 0) {
if (i + 1 < argc) {
preferred_language = argv[i + 1];
i++;
}
}
}
memset(&editor, 0, sizeof editor);
#ifdef HAVE_PANGO
g_type_init();
#endif
editor.display = display_create(&argc, argv);
if (editor.display == NULL) {
fprintf(stderr, "failed to create display: %m\n");
return -1;
}
display_set_user_data(editor.display, &editor);
display_set_global_handler(editor.display, global_handler);
editor.window = window_create(editor.display);
editor.widget = frame_create(editor.window, &editor);
editor.entry = text_entry_create(&editor, "Entry");
editor.entry->click_to_show = click_to_show;
if (preferred_language)
editor.entry->preferred_language = strdup(preferred_language);
editor.editor = text_entry_create(&editor, "Numeric");
editor.editor->content_purpose = WL_TEXT_INPUT_CONTENT_PURPOSE_NUMBER;
editor.editor->click_to_show = click_to_show;
window_set_title(editor.window, "Text Editor");
window_set_key_handler(editor.window, key_handler);
window_set_user_data(editor.window, &editor);
widget_set_redraw_handler(editor.widget, redraw_handler);
widget_set_resize_handler(editor.widget, resize_handler);
widget_set_button_handler(editor.widget, editor_button_handler);
window_schedule_resize(editor.window, 500, 400);
display_run(editor.display);
text_entry_destroy(editor.entry);
text_entry_destroy(editor.editor);
return 0;
}
static struct gears *
gears_create(struct display *display)
{
const int width = 450, height = 500;
struct gears *gears;
int i;
gears = malloc(sizeof *gears);
memset(gears, 0, sizeof *gears);
gears->d = display;
gears->window = window_create(display);
gears->widget = frame_create(gears->window, gears);
window_set_title(gears->window, "Wayland Gears");
gears->display = display_get_egl_display(gears->d);
if (gears->display == NULL)
die("failed to create egl display\n");
eglBindAPI(EGL_OPENGL_API);
gears->config = display_get_argb_egl_config(gears->d);
gears->context = eglCreateContext(gears->display, gears->config,
EGL_NO_CONTEXT, NULL);
if (gears->context == NULL)
die("failed to create context\n");
if (!eglMakeCurrent(gears->display, NULL, NULL, gears->context))
die("failed to make context current\n");
for (i = 0; i < 3; i++) {
gears->gear_list[i] = glGenLists(1);
glNewList(gears->gear_list[i], GL_COMPILE);
make_gear(&gear_templates[i]);
glEndList();
}
glEnable(GL_NORMALIZE);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 200.0);
glMatrixMode(GL_MODELVIEW);
glLightfv(GL_LIGHT0, GL_POSITION, light_pos);
glEnable(GL_CULL_FACE);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_DEPTH_TEST);
glClearColor(0, 0, 0, 0.92);
window_set_user_data(gears->window, gears);
widget_set_resize_handler(gears->widget, resize_handler);
widget_set_redraw_handler(gears->widget, redraw_handler);
window_set_keyboard_focus_handler(gears->window,
keyboard_focus_handler);
window_schedule_resize(gears->window, width, height);
return gears;
}
static errval_t elf_allocate(void *state, genvaddr_t base, size_t size,
uint32_t flags, void **retbase)
{
errval_t err;
struct spawninfo *si = state;
// Increase size by space wasted on first page due to page-alignment
size_t base_offset = BASE_PAGE_OFFSET(base);
size += base_offset;
base -= base_offset;
// Page-align
size = ROUND_UP(size, BASE_PAGE_SIZE);
cslot_t vspace_slot = si->elfload_slot;
// Allocate the frames
size_t sz = 0;
for (lpaddr_t offset = 0; offset < size; offset += sz) {
sz = 1UL << log2floor(size - offset);
struct capref frame = {
.cnode = si->segcn,
.slot = si->elfload_slot++,
};
err = frame_create(frame, sz, NULL);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_FRAME_CREATE);
}
}
cslot_t spawn_vspace_slot = si->elfload_slot;
cslot_t new_slot_count = si->elfload_slot - vspace_slot;
// create copies of the frame capabilities for spawn vspace
for (int copy_idx = 0; copy_idx < new_slot_count; copy_idx++) {
struct capref frame = {
.cnode = si->segcn,
.slot = vspace_slot + copy_idx,
};
struct capref spawn_frame = {
.cnode = si->segcn,
.slot = si->elfload_slot++,
};
err = cap_copy(spawn_frame, frame);
if (err_is_fail(err)) {
// TODO: make debug printf
printf("cap_copy failed for src_slot = %"PRIuCSLOT", dest_slot = %"PRIuCSLOT"\n", frame.slot, spawn_frame.slot);
return err_push(err, LIB_ERR_CAP_COPY);
}
}
/* Map into my vspace */
struct memobj *memobj = malloc(sizeof(struct memobj_anon));
if (!memobj) {
return LIB_ERR_MALLOC_FAIL;
}
struct vregion *vregion = malloc(sizeof(struct vregion));
if (!vregion) {
return LIB_ERR_MALLOC_FAIL;
}
// Create the objects
err = memobj_create_anon((struct memobj_anon*)memobj, size, 0);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_MEMOBJ_CREATE_ANON);
}
err = vregion_map(vregion, get_current_vspace(), memobj, 0, size,
VREGION_FLAGS_READ_WRITE);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_VSPACE_MAP);
}
for (lvaddr_t offset = 0; offset < size; offset += sz) {
sz = 1UL << log2floor(size - offset);
struct capref frame = {
.cnode = si->segcn,
.slot = vspace_slot++,
};
genvaddr_t genvaddr = vspace_lvaddr_to_genvaddr(offset);
err = memobj->f.fill(memobj, genvaddr, frame, sz);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_MEMOBJ_FILL);
}
err = memobj->f.pagefault(memobj, vregion, offset, 0);
if (err_is_fail(err)) {
DEBUG_ERR(err, "lib_err_memobj_pagefault_handler");
return err_push(err, LIB_ERR_MEMOBJ_PAGEFAULT_HANDLER);
}
}
/* Map into spawn vspace */
struct memobj *spawn_memobj = NULL;
struct vregion *spawn_vregion = NULL;
err = spawn_vspace_map_anon_fixed_attr(si, base, size, &spawn_vregion,
&spawn_memobj,
elf_to_vregion_flags(flags));
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_VSPACE_MAP);
}
for (lvaddr_t offset = 0; offset < size; offset += sz) {
sz = 1UL << log2floor(size - offset);
struct capref spawn_frame = {
.cnode = si->segcn,
.slot = spawn_vspace_slot++,
};
genvaddr_t genvaddr = vspace_lvaddr_to_genvaddr(offset);
err = memobj->f.fill(spawn_memobj, genvaddr, spawn_frame, sz);
if (err_is_fail(err)) {
return err_push(err, LIB_ERR_MEMOBJ_FILL);
}
err = spawn_memobj->f.pagefault(spawn_memobj, spawn_vregion, offset, 0);
if (err_is_fail(err)) {
DEBUG_ERR(err, "lib_err_memobj_pagefault_handler");
return err_push(err, LIB_ERR_MEMOBJ_PAGEFAULT_HANDLER);
}
}
si->vregion[si->vregions] = vregion;
si->base[si->vregions++] = base;
genvaddr_t genvaddr = vregion_get_base_addr(vregion) + base_offset;
*retbase = (void*)vspace_genvaddr_to_lvaddr(genvaddr);
return SYS_ERR_OK;
}
/**
* \brief Load the elf image
*/
errval_t spawn_arch_load(struct spawninfo *si,
lvaddr_t binary, size_t binary_size,
genvaddr_t *entry, void** arch_load_info)
{
errval_t err;
// Reset the elfloader_slot
si->elfload_slot = 0;
si->vregions = 0;
struct capref cnode_cap = {
.cnode = si->rootcn,
.slot = ROOTCN_SLOT_SEGCN,
};
// XXX: this code assumes that elf_load never needs more than 32 slots for
// text frame capabilities.
err = cnode_create_raw(cnode_cap, &si->segcn, DEFAULT_CNODE_SLOTS, NULL);
if (err_is_fail(err)) {
return err_push(err, SPAWN_ERR_CREATE_SEGCN);
}
// Load the binary
si->tls_init_base = 0;
si->tls_init_len = si->tls_total_len = 0;
err = elf_load_tls(EM_HOST, elf_allocate, si, binary, binary_size, entry,
&si->tls_init_base, &si->tls_init_len, &si->tls_total_len);
if (err_is_fail(err)) {
return err;
}
return SYS_ERR_OK;
}
void spawn_arch_set_registers(void *arch_load_info,
dispatcher_handle_t handle,
arch_registers_state_t *enabled_area,
arch_registers_state_t *disabled_area)
{
#if defined(__x86_64__)
/* XXX: 1st argument to _start is the dispatcher pointer
* see lib/crt/arch/x86_64/crt0.s */
disabled_area->rdi = get_dispatcher_shared_generic(handle)->udisp;
#elif defined(__i386__)
/* XXX: 1st argument to _start is the dispatcher pointer
* see lib/crt/arch/x86_32/crt0.s */
disabled_area->edi = get_dispatcher_shared_generic(handle)->udisp;
#endif
}