static void display_closed (GdkDisplay *display, gboolean is_error) { int i; for (i = 0; i < num_screens; i++) { if (gail_screens [i].update_handler) { g_source_remove (gail_screens [i].update_handler); gail_screens [i].update_handler = 0; } if (gail_screens [i].update_desktop_handler) { g_source_remove (gail_screens [i].update_desktop_handler); gail_screens [i].update_desktop_handler = 0; } free_screen_info (&gail_screens [i]); } g_free (gail_screens); gail_screens = NULL; num_screens = 0; }
/* * EFI entry point for the arm/arm64 EFI stubs. This is the entrypoint * that is described in the PE/COFF header. Most of the code is the same * for both archictectures, with the arch-specific code provided in the * handle_kernel_image() function. */ unsigned long efi_entry(void *handle, efi_system_table_t *sys_table, unsigned long *image_addr) { efi_loaded_image_t *image; efi_status_t status; unsigned long image_size = 0; unsigned long dram_base; /* addr/point and size pairs for memory management*/ unsigned long initrd_addr; u64 initrd_size = 0; unsigned long fdt_addr = 0; /* Original DTB */ unsigned long fdt_size = 0; char *cmdline_ptr = NULL; int cmdline_size = 0; unsigned long new_fdt_addr; efi_guid_t loaded_image_proto = LOADED_IMAGE_PROTOCOL_GUID; unsigned long reserve_addr = 0; unsigned long reserve_size = 0; int secure_boot = 0; struct screen_info *si; /* Check if we were booted by the EFI firmware */ if (sys_table->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) goto fail; pr_efi(sys_table, "Booting Linux Kernel...\n"); status = check_platform_features(sys_table); if (status != EFI_SUCCESS) goto fail; /* * Get a handle to the loaded image protocol. This is used to get * information about the running image, such as size and the command * line. */ status = sys_table->boottime->handle_protocol(handle, &loaded_image_proto, (void *)&image); if (status != EFI_SUCCESS) { pr_efi_err(sys_table, "Failed to get loaded image protocol\n"); goto fail; } dram_base = get_dram_base(sys_table); if (dram_base == EFI_ERROR) { pr_efi_err(sys_table, "Failed to find DRAM base\n"); goto fail; } /* * Get the command line from EFI, using the LOADED_IMAGE * protocol. We are going to copy the command line into the * device tree, so this can be allocated anywhere. */ cmdline_ptr = efi_convert_cmdline(sys_table, image, &cmdline_size); if (!cmdline_ptr) { pr_efi_err(sys_table, "getting command line via LOADED_IMAGE_PROTOCOL\n"); goto fail; } /* check whether 'nokaslr' was passed on the command line */ if (IS_ENABLED(CONFIG_RANDOMIZE_BASE)) { static const u8 default_cmdline[] = CONFIG_CMDLINE; const u8 *str, *cmdline = cmdline_ptr; if (IS_ENABLED(CONFIG_CMDLINE_FORCE)) cmdline = default_cmdline; str = strstr(cmdline, "nokaslr"); if (str == cmdline || (str > cmdline && *(str - 1) == ' ')) __nokaslr = true; } si = setup_graphics(sys_table); status = handle_kernel_image(sys_table, image_addr, &image_size, &reserve_addr, &reserve_size, dram_base, image); if (status != EFI_SUCCESS) { pr_efi_err(sys_table, "Failed to relocate kernel\n"); goto fail_free_cmdline; } status = efi_parse_options(cmdline_ptr); if (status != EFI_SUCCESS) pr_efi_err(sys_table, "Failed to parse EFI cmdline options\n"); secure_boot = efi_get_secureboot(sys_table); if (secure_boot > 0) pr_efi(sys_table, "UEFI Secure Boot is enabled.\n"); if (secure_boot < 0) { pr_efi_err(sys_table, "could not determine UEFI Secure Boot status.\n"); } /* * Unauthenticated device tree data is a security hazard, so * ignore 'dtb=' unless UEFI Secure Boot is disabled. */ if (secure_boot != 0 && strstr(cmdline_ptr, "dtb=")) { pr_efi(sys_table, "Ignoring DTB from command line.\n"); } else { status = handle_cmdline_files(sys_table, image, cmdline_ptr, "dtb=", ~0UL, &fdt_addr, &fdt_size); if (status != EFI_SUCCESS) { pr_efi_err(sys_table, "Failed to load device tree!\n"); goto fail_free_image; } } if (fdt_addr) { pr_efi(sys_table, "Using DTB from command line\n"); } else { /* Look for a device tree configuration table entry. */ fdt_addr = (uintptr_t)get_fdt(sys_table, &fdt_size); if (fdt_addr) pr_efi(sys_table, "Using DTB from configuration table\n"); } if (!fdt_addr) pr_efi(sys_table, "Generating empty DTB\n"); status = handle_cmdline_files(sys_table, image, cmdline_ptr, "initrd=", dram_base + SZ_512M, (unsigned long *)&initrd_addr, (unsigned long *)&initrd_size); if (status != EFI_SUCCESS) pr_efi_err(sys_table, "Failed initrd from command line!\n"); efi_random_get_seed(sys_table); new_fdt_addr = fdt_addr; status = allocate_new_fdt_and_exit_boot(sys_table, handle, &new_fdt_addr, dram_base + MAX_FDT_OFFSET, initrd_addr, initrd_size, cmdline_ptr, fdt_addr, fdt_size); /* * If all went well, we need to return the FDT address to the * calling function so it can be passed to kernel as part of * the kernel boot protocol. */ if (status == EFI_SUCCESS) return new_fdt_addr; pr_efi_err(sys_table, "Failed to update FDT and exit boot services\n"); efi_free(sys_table, initrd_size, initrd_addr); efi_free(sys_table, fdt_size, fdt_addr); fail_free_image: efi_free(sys_table, image_size, *image_addr); efi_free(sys_table, reserve_size, reserve_addr); fail_free_cmdline: free_screen_info(sys_table, si); efi_free(sys_table, cmdline_size, (unsigned long)cmdline_ptr); fail: return EFI_ERROR; }
static gboolean get_stacked_windows (GailScreenInfo *info) { Atom ret_type; int format; gulong nitems; gulong bytes_after; guchar *data; int error; int result; int i; int j; int *desktops; gboolean *desktops_changed; if (_net_client_list_stacking == None) _net_client_list_stacking = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "_NET_CLIENT_LIST_STACKING", False); gdk_error_trap_push (); ret_type = None; result = XGetWindowProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), GDK_WINDOW_XWINDOW (info->root_window), _net_client_list_stacking, 0, G_MAXLONG, False, XA_WINDOW, &ret_type, &format, &nitems, &bytes_after, &data); error = gdk_error_trap_pop (); /* nitems < 1 will occur if the property is not set */ if (error != Success || result != Success || nitems < 1) { free_screen_info (info); return FALSE; } if (ret_type != XA_WINDOW) { XFree (data); free_screen_info (info); return FALSE; } desktops = g_malloc0 (nitems * sizeof (int)); desktops_changed = g_malloc0 (nitems * sizeof (gboolean)); for (i = 0; i < nitems; i++) { gboolean window_found = FALSE; for (j = 0; j < info->stacked_windows_len; j++) { if (info->stacked_windows [j] == data [i]) { desktops [i] = info->desktop [j]; desktops_changed [i] = info->desktop_changed [j]; window_found = TRUE; break; } } if (!window_found) { desktops [i] = get_window_desktop (data [i]); desktops_changed [i] = FALSE; } } free_screen_info (info); info->stacked_windows = (Window*) data; info->stacked_windows_len = nitems; info->desktop = desktops; info->desktop_changed = desktops_changed; return TRUE; }