/* Boot the current CPU */
void __cpuinit start_secondary(unsigned long boot_phys_offset,
unsigned long fdt_paddr,
unsigned long hwid)
{
unsigned int cpuid = init_data.cpuid;
memset(get_cpu_info(), 0, sizeof (struct cpu_info));
set_processor_id(cpuid);
current_cpu_data = boot_cpu_data;
identify_cpu(¤t_cpu_data);
init_traps();
setup_virt_paging();
mmu_init_secondary_cpu();
gic_init_secondary_cpu();
init_secondary_IRQ();
gic_route_ppis();
init_maintenance_interrupt();
init_timer_interrupt();
set_current(idle_vcpu[cpuid]);
setup_cpu_sibling_map(cpuid);
/* Run local notifiers */
notify_cpu_starting(cpuid);
wmb();
/* Now report this CPU is up */
smp_up_cpu = MPIDR_INVALID;
cpumask_set_cpu(cpuid, &cpu_online_map);
wmb();
local_irq_enable();
local_abort_enable();
printk(XENLOG_DEBUG "CPU %u booted.\n", smp_processor_id());
startup_cpu_idle_loop();
}
/* Boot the current CPU */
void start_secondary(unsigned long boot_phys_offset,
unsigned long fdt_paddr,
unsigned long hwid)
{
unsigned int cpuid = init_data.cpuid;
memset(get_cpu_info(), 0, sizeof (struct cpu_info));
set_processor_id(cpuid);
identify_cpu(¤t_cpu_data);
init_traps();
mmu_init_secondary_cpu();
gic_init_secondary_cpu();
init_secondary_IRQ();
init_maintenance_interrupt();
init_timer_interrupt();
set_current(idle_vcpu[cpuid]);
setup_cpu_sibling_map(cpuid);
/* Run local notifiers */
notify_cpu_starting(cpuid);
/*
* Ensure that previous writes are visible before marking the cpu as
* online.
*/
smp_wmb();
/* Now report this CPU is up */
cpumask_set_cpu(cpuid, &cpu_online_map);
local_irq_enable();
local_abort_enable();
check_local_cpu_errata();
printk(XENLOG_DEBUG "CPU %u booted.\n", smp_processor_id());
startup_cpu_idle_loop();
}
/*
* This is the kernel main routine. When the boot process is completed, this
* function is called.
*/
void start_kernel(void) {
int pid, i;
char *names[N_CONSOLES] = { "PRG1", "PRG2", "PRG3",
"PRG4", "PRG5", "PRG6" };
// init traps
init_traps();
// initialize IRQs
init_irq();
// initialize the tty driver. The tty is composed by a keyboard driver
// that read input keys a print the relative ASCII code on video.
tty_init();
// initialize the timer.
time_init();
// initialize the scheduler
sched_init();
printk("Kernel info: %u bytes, start at 0x%x0 end at 0x%x0.\n",
&__KERNEL_END__-K_START, K_START, &__KERNEL_END__);
sti();
// calibrate delay
calibrate_delay();
// floppy driver initialization
floppy_init();
// switch in user mode
move_to_user_mode();
// for a process for each console and execute the program PRGi
for (i=0; i<N_CONSOLES; ++i) {
// spawn process i and run PRG1
pid = fork();
if (pid == 0) {
exec(names[i]);
} else if (pid < 0) {
print("idle: cannot duplicate myself.\n");
}
}
print("Idle: ok!\n");
// idle loop
while(1);
}
/**
* Initialize the agent. Calls into init_agent_read_config to set tha app's
* configuration file in the appropriate default storage space,
* NETSNMP_DS_LIB_APPTYPE. Need to call init_agent before calling init_snmp.
*
* @param app the configuration file to be read in, gets stored in default
* storage
*
* @return Returns non-zero on failure and zero on success.
*
* @see init_snmp
*/
int
init_agent(const char *app)
{
int r = 0;
if(++done_init_agent > 1) {
snmp_log(LOG_WARNING, "ignoring extra call to init_agent (%d)\n",
done_init_agent);
return r;
}
/*
* get current time (ie, the time the agent started)
*/
gettimeofday(&starttime, NULL);
starttime.tv_sec--;
starttime.tv_usec += 1000000L;
/*
* we handle alarm signals ourselves in the select loop
*/
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_ALARM_DONT_USE_SIG, 1);
#ifdef CAN_USE_NLIST
init_kmem("/dev/kmem");
#endif
setup_tree();
init_agent_read_config(app);
#ifdef TESTING
auto_nlist_print_tree(-2, 0);
#endif
_init_agent_callback_transport();
netsnmp_init_helpers();
init_traps();
netsnmp_container_init_list();
#if defined(USING_AGENTX_SUBAGENT_MODULE) || defined(USING_AGENTX_MASTER_MODULE)
/*
* initialize agentx configs
*/
agentx_config_init();
if(netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE) == SUB_AGENT)
subagent_init();
#endif
/*
* Register configuration tokens from transport modules.
*/
#ifdef SNMP_TRANSPORT_UDP_DOMAIN
netsnmp_udp_agent_config_tokens_register();
#endif
#ifdef SNMP_TRANSPORT_UDPIPV6_DOMAIN
netsnmp_udp6_agent_config_tokens_register();
#endif
#ifdef SNMP_TRANSPORT_UNIX_DOMAIN
netsnmp_unix_agent_config_tokens_register();
#endif
#ifdef NETSNMP_EMBEDDED_PERL
init_perl();
#endif
#ifdef USING_AGENTX_SUBAGENT_MODULE
/*
* don't init agent modules for a sub-agent
*/
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE) == SUB_AGENT)
return r;
#endif
# include "agent_module_inits.h"
return r;
} /* end init_agent() */
/* C entry point for boot CPU */
void __init start_xen(unsigned long boot_phys_offset,
unsigned long fdt_paddr,
unsigned long cpuid)
{
size_t fdt_size;
int cpus, i;
const char *cmdline;
setup_cache();
percpu_init_areas();
set_processor_id(0); /* needed early, for smp_processor_id() */
smp_clear_cpu_maps();
/* This is mapped by head.S */
device_tree_flattened = (void *)BOOT_FDT_VIRT_START
+ (fdt_paddr & ((1 << SECOND_SHIFT) - 1));
fdt_size = device_tree_early_init(device_tree_flattened, fdt_paddr);
cmdline = device_tree_bootargs(device_tree_flattened);
early_printk("Command line: %s\n", cmdline);
cmdline_parse(cmdline);
setup_pagetables(boot_phys_offset, get_xen_paddr());
setup_mm(fdt_paddr, fdt_size);
vm_init();
dt_unflatten_host_device_tree();
dt_irq_xlate = gic_irq_xlate;
dt_uart_init();
console_init_preirq();
system_state = SYS_STATE_boot;
processor_id();
platform_init();
smp_init_cpus();
cpus = smp_get_max_cpus();
init_xen_time();
gic_init();
set_current((struct vcpu *)0xfffff000); /* debug sanity */
idle_vcpu[0] = current;
init_traps();
setup_virt_paging();
p2m_vmid_allocator_init();
softirq_init();
tasklet_subsys_init();
init_IRQ();
gic_route_ppis();
gic_route_spis();
init_maintenance_interrupt();
init_timer_interrupt();
timer_init();
init_idle_domain();
rcu_init();
arch_init_memory();
local_irq_enable();
local_abort_enable();
smp_prepare_cpus(cpus);
initialize_keytable();
console_init_postirq();
do_presmp_initcalls();
for_each_present_cpu ( i )
{
if ( (num_online_cpus() < cpus) && !cpu_online(i) )
{
int ret = cpu_up(i);
if ( ret != 0 )
printk("Failed to bring up CPU %u (error %d)\n", i, ret);
}
}
printk("Brought up %ld CPUs\n", (long)num_online_cpus());
/* TODO: smp_cpus_done(); */
do_initcalls();
/* Create initial domain 0. */
dom0 = domain_create(0, 0, 0);
if ( IS_ERR(dom0) || (alloc_dom0_vcpu0() == NULL) )
panic("Error creating domain 0");
dom0->is_privileged = 1;
dom0->target = NULL;
if ( construct_dom0(dom0) != 0)
panic("Could not set up DOM0 guest OS");
/* Scrub RAM that is still free and so may go to an unprivileged domain. */
scrub_heap_pages();
init_constructors();
console_endboot();
/* Hide UART from DOM0 if we're using it */
serial_endboot();
system_state = SYS_STATE_active;
domain_unpause_by_systemcontroller(dom0);
/* Switch on to the dynamically allocated stack for the idle vcpu
* since the static one we're running on is about to be freed. */
memcpy(idle_vcpu[0]->arch.cpu_info, get_cpu_info(),
sizeof(struct cpu_info));
switch_stack_and_jump(idle_vcpu[0]->arch.cpu_info, init_done);
}
/* C entry point for boot CPU */
void __init start_xen(unsigned long boot_phys_offset,
unsigned long fdt_paddr,
unsigned long cpuid)
{
size_t fdt_size;
int cpus, i;
paddr_t xen_paddr;
const char *cmdline;
struct bootmodule *xen_bootmodule;
struct domain *dom0;
struct xen_arch_domainconfig config;
setup_cache();
percpu_init_areas();
set_processor_id(0); /* needed early, for smp_processor_id() */
set_current((struct vcpu *)0xfffff000); /* debug sanity */
idle_vcpu[0] = current;
setup_virtual_regions(NULL, NULL);
/* Initialize traps early allow us to get backtrace when an error occurred */
init_traps();
smp_clear_cpu_maps();
/* This is mapped by head.S */
device_tree_flattened = (void *)BOOT_FDT_VIRT_START
+ (fdt_paddr & ((1 << SECOND_SHIFT) - 1));
fdt_size = boot_fdt_info(device_tree_flattened, fdt_paddr);
cmdline = boot_fdt_cmdline(device_tree_flattened);
printk("Command line: %s\n", cmdline);
cmdline_parse(cmdline);
/* Register Xen's load address as a boot module. */
xen_bootmodule = add_boot_module(BOOTMOD_XEN,
(paddr_t)(uintptr_t)(_start + boot_phys_offset),
(paddr_t)(uintptr_t)(_end - _start + 1), NULL);
BUG_ON(!xen_bootmodule);
xen_paddr = get_xen_paddr();
setup_pagetables(boot_phys_offset, xen_paddr);
/* Update Xen's address now that we have relocated. */
printk("Update BOOTMOD_XEN from %"PRIpaddr"-%"PRIpaddr" => %"PRIpaddr"-%"PRIpaddr"\n",
xen_bootmodule->start, xen_bootmodule->start + xen_bootmodule->size,
xen_paddr, xen_paddr + xen_bootmodule->size);
xen_bootmodule->start = xen_paddr;
setup_mm(fdt_paddr, fdt_size);
/* Parse the ACPI tables for possible boot-time configuration */
acpi_boot_table_init();
end_boot_allocator();
vm_init();
dt_unflatten_host_device_tree();
init_IRQ();
platform_init();
preinit_xen_time();
gic_preinit();
arm_uart_init();
console_init_preirq();
console_init_ring();
system_state = SYS_STATE_boot;
processor_id();
smp_init_cpus();
cpus = smp_get_max_cpus();
init_xen_time();
gic_init();
p2m_vmid_allocator_init();
softirq_init();
tasklet_subsys_init();
xsm_dt_init();
init_maintenance_interrupt();
init_timer_interrupt();
timer_init();
init_idle_domain();
rcu_init();
arch_init_memory();
local_irq_enable();
local_abort_enable();
smp_prepare_cpus(cpus);
initialize_keytable();
console_init_postirq();
do_presmp_initcalls();
for_each_present_cpu ( i )
{
if ( (num_online_cpus() < cpus) && !cpu_online(i) )
{
int ret = cpu_up(i);
if ( ret != 0 )
printk("Failed to bring up CPU %u (error %d)\n", i, ret);
}
}
printk("Brought up %ld CPUs\n", (long)num_online_cpus());
/* TODO: smp_cpus_done(); */
setup_virt_paging();
iommu_setup();
do_initcalls();
/*
* It needs to be called after do_initcalls to be able to use
* stop_machine (tasklets initialized via an initcall).
*/
apply_alternatives_all();
/* Create initial domain 0. */
/* The vGIC for DOM0 is exactly emulating the hardware GIC */
config.gic_version = XEN_DOMCTL_CONFIG_GIC_NATIVE;
config.nr_spis = gic_number_lines() - 32;
dom0 = domain_create(0, 0, 0, &config);
if ( IS_ERR(dom0) || (alloc_dom0_vcpu0(dom0) == NULL) )
panic("Error creating domain 0");
dom0->is_privileged = 1;
dom0->target = NULL;
if ( construct_dom0(dom0) != 0)
panic("Could not set up DOM0 guest OS");
/* Scrub RAM that is still free and so may go to an unprivileged domain. */
scrub_heap_pages();
init_constructors();
console_endboot();
/* Hide UART from DOM0 if we're using it */
serial_endboot();
system_state = SYS_STATE_active;
/* Must be done past setting system_state. */
unregister_init_virtual_region();
domain_unpause_by_systemcontroller(dom0);
/* Switch on to the dynamically allocated stack for the idle vcpu
* since the static one we're running on is about to be freed. */
memcpy(idle_vcpu[0]->arch.cpu_info, get_cpu_info(),
sizeof(struct cpu_info));
switch_stack_and_jump(idle_vcpu[0]->arch.cpu_info, init_done);
}
/**
* Initialize the agent. Calls into init_agent_read_config to set tha app's
* configuration file in the appropriate default storage space,
* NETSNMP_DS_LIB_APPTYPE. Need to call init_agent before calling init_snmp.
*
* @param app the configuration file to be read in, gets stored in default
* storage
*
* @return Returns non-zero on failure and zero on success.
*
* @see init_snmp
*/
int
init_agent(const char *app)
{
int r = 0;
if(++done_init_agent > 1) {
snmp_log(LOG_WARNING, "ignoring extra call to init_agent (%d)\n",
done_init_agent);
return r;
}
/*
* get current time (ie, the time the agent started)
*/
gettimeofday(&starttime, NULL);
starttime.tv_sec--;
starttime.tv_usec += 1000000L;
/*
* we handle alarm signals ourselves in the select loop
*/
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_ALARM_DONT_USE_SIG, 1);
#ifdef NETSNMP_CAN_USE_NLIST
init_kmem("/dev/kmem");
#endif
setup_tree();
/* add by frank */
/*´´½¨ÓëÊý¾Ý¿âÄ£¿é»¥³âͨѶµÄÍⲿSOCKET½Ó¿Ú*/
dbsdev = dbsOpen(MID_SNMP);
if( NULL != dbsdev )
{
dbsWaitModule(dbsdev, MF_CMM|MF_ALARM|MF_TM);
//printf("init_agent: dbsOpen\n");
}
else
{
fprintf(stderr,"ERROR: snmpd->dbsOpen error, exited !\n");
}
if( CMM_SUCCESS != snmp2cmm_init() )
{
printf("module snmpd snmp2cmm_init error\n");
dbs_sys_log(dbsdev, DBS_LOG_ERR, "module snmpd snmp2cmm_init error");
}
init_agent_read_config(app);
#ifdef TESTING
auto_nlist_print_tree(-2, 0);
#endif
_init_agent_callback_transport();
netsnmp_init_helpers();
init_traps();
netsnmp_container_init_list();
#if defined(USING_AGENTX_SUBAGENT_MODULE) || defined(USING_AGENTX_MASTER_MODULE)
/*
* initialize agentx configs
*/
agentx_config_init();
if(netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE) == SUB_AGENT)
subagent_init();
#endif
/*
* Register configuration tokens from transport modules.
*/
#ifdef NETSNMP_TRANSPORT_UDP_DOMAIN
netsnmp_udp_agent_config_tokens_register();
#endif
#ifdef NETSNMP_TRANSPORT_UDPIPV6_DOMAIN
netsnmp_udp6_agent_config_tokens_register();
#endif
#ifdef NETSNMP_TRANSPORT_UNIX_DOMAIN
netsnmp_unix_agent_config_tokens_register();
#endif
#ifdef NETSNMP_EMBEDDED_PERL
init_perl();
#endif
#ifdef USING_AGENTX_SUBAGENT_MODULE
/*
* don't init agent modules for a sub-agent
*/
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE) == SUB_AGENT)
return r;
#endif
# include "agent_module_inits.h"
return r;
} /* end init_agent() */
void entry(struct Multiboot_Info_dec * old_mbinfo)
{
// This function is entered into by the kernel header
// which sets up some basic tables for use and passes on
// the multiboot info structure
struct Multiboot_Info_dec mbinfo;
#ifdef DEBUG
U8 * screen = (U8 *)0xB8000;
U16 i;
// Clear the screen so debug messages are more visible
for (i = 0; i < 160; i+=2)
{
screen[i] = ' ';
screen[i+1] = 0x17;
}
for (i = 160; i < 7840; i+=2)
{
screen[i] = ' ';
screen[i+1] = 0x07;
}
dprint("\t\t\tThe Poseidon Project Kernel.\n\n");
dprint("The Poseidon Project (c) Copyright 1998, 1999 John Barker\n");
dprint("All rights reserved. 32 bit message based real time operating system.\n\n");
#endif
// Copy the old table to a local one for safe keeping
// because once memory is initialized the old one may be wiped
memcpy(&mbinfo,old_mbinfo,sizeof(struct Multiboot_Info_dec));
// Set up the exception traps
init_traps();
// Allocate the irq routines
init_irqs();
// Initialize memory management so we can use kmalloc and other
// memory based functions
init_mm(&mbinfo);
// Initialize the object manager so we can start using it
init_obj();
// Initialize the module/driver interface so modules can be loaded
init_mdi();
// Set up the clocks and timers
init_time();
// Set up tables and data for the executive
init_executive();
// Initialize IPC and message buffers for all objects
init_ipc();
// Initialize the system calls (system call interface)
init_sci();
// Load all the modules passed to us at boot time, one of these
// should be init or main
load_modules(&mbinfo);
// Start the executive scheduler, will boot the init module
start_executive();
// The idle function - just loop, should be run in user mode
idle();
}
int
main(int argc, char *argv[]) {
IxpMsg m;
char **oargv;
char *wmiirc, *s;
int i;
quotefmtinstall();
fmtinstall('r', errfmt);
fmtinstall('a', afmt);
fmtinstall('C', Cfmt);
extern int fmtevent(Fmt*);
fmtinstall('E', fmtevent);
wmiirc = "wmiirc";
oargv = argv;
ARGBEGIN{
case 'a':
address = EARGF(usage());
break;
case 'r':
wmiirc = EARGF(usage());
break;
case 'v':
print("%s", version);
exit(0);
case 'D':
s = EARGF(usage());
m = ixp_message(s, strlen(s), 0);
msg_debug(&m);
break;
default:
usage();
break;
}ARGEND;
if(argc)
usage();
setlocale(LC_CTYPE, "");
starting = true;
initdisplay();
traperrors(true);
selectinput(&scr.root, EnterWindowMask
| SubstructureRedirectMask);
if(traperrors(false))
fatal("another window manager is already running");
passwd = getpwuid(getuid());
user = estrdup(passwd->pw_name);
init_environment();
fmtinstall('F', Ffmt);
ixp_printfcall = printfcall;
sock = ixp_announce(address);
if(sock < 0)
fatal("Can't create socket '%s': %r", address);
closeexec(ConnectionNumber(display));
closeexec(sock);
if(wmiirc[0])
spawn_command(wmiirc);
init_traps();
init_cursors();
init_lock_keys();
ewmh_init();
xext_init();
srv.preselect = check_preselect;
ixp_listen(&srv, sock, &p9srv, serve_9pcon, nil);
ixp_listen(&srv, ConnectionNumber(display), nil, check_x_event, closedisplay);
def.border = 1;
def.colmode = Colstack;
def.font = loadfont(FONT);
def.incmode = ISqueeze;
def.mod = Mod1Mask;
strcpy(def.grabmod, "Mod1");
loadcolor(&def.focuscolor, FOCUSCOLORS);
loadcolor(&def.normcolor, NORMCOLORS);
disp.sel = pointerscreen();
init_screens();
root_init();
disp.focus = nil;
setfocus(screen->barwin, RevertToParent);
view_select("1");
scan_wins();
starting = false;
view_update_all();
ewmh_updateviews();
event("FocusTag %s\n", selview->name);
i = ixp_serverloop(&srv);
if(i)
fprint(2, "%s: error: %r\n", argv0);
else
event("Quit");
cleanup();
if(exitsignal)
raise(exitsignal);
if(execstr) {
char *toks[32];
int n;
n = unquote(strdup(execstr), toks, nelem(toks)-1);
toks[n] = nil;
execvp(toks[0], toks);
fprint(2, "%s: failed to exec %q: %r\n", argv0, execstr);
execvp(argv0, oargv);
fatal("failed to exec myself");
}
return i;
}
int
main(int argc, char *argv[]) {
char *wmiirc;
WMScreen *s;
WinAttr wa;
int i;
fmtinstall('r', errfmt);
fmtinstall('C', Cfmt);
wmiirc = "wmiistartrc";
ARGBEGIN{
case 'v':
print("%s", version);
exit(0);
case 'V':
verbose = True;
break;
case 'a':
address = EARGF(usage());
break;
case 'r':
wmiirc = EARGF(usage());
break;
default:
usage();
break;
}ARGEND;
if(argc)
usage();
setlocale(LC_CTYPE, "");
starting = True;
initdisplay();
xlib_errorhandler = XSetErrorHandler(errorhandler);
check_other_wm = True;
XSelectInput(display, scr.root.w,
SubstructureRedirectMask
| EnterWindowMask);
XSync(display, False);
check_other_wm = False;
passwd = getpwuid(getuid());
user = estrdup(passwd->pw_name);
init_environment();
sock = ixp_announce(address);
if(sock < 0)
fatal("Can't create socket '%s': %r", address);
if(wmiirc)
spawn_command(wmiirc);
init_traps();
init_atoms();
init_cursors();
init_lock_keys();
srv.preselect = check_preselect;
ixp_listen(&srv, sock, &p9srv, serve_9pcon, nil);
ixp_listen(&srv, ConnectionNumber(display), nil, check_x_event, closedisplay);
def.font = loadfont(FONT);
def.border = 1;
def.colmode = Coldefault;
def.mod = Mod1Mask;
strcpy(def.grabmod, "Mod1");
loadcolor(&def.focuscolor, FOCUSCOLORS);
loadcolor(&def.normcolor, NORMCOLORS);
num_screens = 1;
screens = emallocz(num_screens * sizeof(*screens));
screen = &screens[0];
for(i = 0; i < num_screens; i++) {
s = &screens[i];
init_screen(s);
s->ibuf = allocimage(Dx(s->r), Dy(s->r), scr.depth);
wa.event_mask =
SubstructureRedirectMask
| SubstructureNotifyMask
| EnterWindowMask
| LeaveWindowMask
| FocusChangeMask;
wa.cursor = cursor[CurNormal];
setwinattr(&scr.root, &wa,
CWEventMask
| CWCursor);
initbar(s);
}
screen->focus = nil;
setfocus(screen->barwin, RevertToParent);
scan_wins();
starting = False;
select_view("nil");
update_views();
write_event("FocusTag %s\n", screen->sel->name);
check_x_event(nil);
i = ixp_serverloop(&srv);
if(i)
fprint(2, "%s: error: %r\n", argv0);
cleanup();
if(exitsignal)
raise(exitsignal);
if(execstr)
execl("/bin/sh", "sh", "-c", execstr, nil);
return i;
}
