haiku/src/system/kernel/system_info.c
Axel Dörfler e6dc7903e4 * vm.h no longer includes vm_types.h - only those that actually need access
to the private VM types are including vm_types.h now.
* Removed vm_page, vm_area, vm_cache, and vm_address_space typedefs; it's
  cleaner this way, and the actual types are only used in C++ files now,
  anyway.
* And that caused changes in many files...
* Made commpage.h self-containing.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22329 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-09-27 12:21:33 +00:00

149 lines
3.4 KiB
C

/*
* Copyright (c) 2004-2007, Haiku, Inc.
* Distributed under the terms of the MIT license.
*
* Authors:
* Stefano Ceccherini
* Axel Dörfler, axeld@pinc-software.de
*/
#include <system_info.h>
#include <OS.h>
#include <KernelExport.h>
#include <cpu.h>
#include <debug.h>
#include <kernel.h>
#include <port.h>
#include <real_time_clock.h>
#include <sem.h>
#include <smp.h>
#include <team.h>
#include <thread.h>
#include <vm.h>
#include <vm_page.h>
#include <arch/system_info.h>
#include <string.h>
const static int64 kKernelVersion = 0x1;
const static char *kKernelName = "kernel_" HAIKU_ARCH;
// Haiku SVN revision. Will be set when copying the kernel to the image.
// Lives in a separate section so that it can easily be found.
static uint32 sHaikuRevision __attribute__((section("_haiku_revision")));
static uint32 sHaikuRevision = 0;
static int
dump_info(int argc, char **argv)
{
int32 i;
kprintf("kernel build: %s %s\n\n", __DATE__, __TIME__);
kprintf("cpu count: %ld, active times:\n", smp_get_num_cpus());
for (i = 0; i < smp_get_num_cpus(); i++)
kprintf(" [%ld] %Ld\n", i + 1, cpu_get_active_time(i));
// ToDo: Add page_faults
kprintf("pages:\t\t%ld (%ld max)\n", vm_page_num_pages() - vm_page_num_free_pages(),
vm_page_num_pages());
kprintf("sems:\t\t%ld (%ld max)\n", sem_used_sems(), sem_max_sems());
kprintf("ports:\t\t%ld (%ld max)\n", port_used_ports(), port_max_ports());
kprintf("threads:\t%ld (%ld max)\n", thread_used_threads(), thread_max_threads());
kprintf("teams:\t\t%ld (%ld max)\n", team_used_teams(), team_max_teams());
return 0;
}
// #pragma mark -
status_t
_get_system_info(system_info *info, size_t size)
{
int32 i;
if (size != sizeof(system_info))
return B_BAD_VALUE;
memset(info, 0, sizeof(system_info));
info->boot_time = rtc_boot_time();
info->cpu_count = smp_get_num_cpus();
for (i = 0; i < info->cpu_count; i++)
info->cpu_infos[i].active_time = cpu_get_active_time(i);
// ToDo: Add page_faults
info->max_pages = vm_page_num_pages();
info->used_pages = vm_page_num_pages() - vm_page_num_free_pages();
info->used_threads = thread_used_threads();
info->max_threads = thread_max_threads();
info->used_teams = team_used_teams();
info->max_teams = team_max_teams();
info->used_ports = port_used_ports();
info->max_ports = port_max_ports();
info->used_sems = sem_used_sems();
info->max_sems = sem_max_sems();
info->kernel_version = kKernelVersion;
strlcpy(info->kernel_name, kKernelName, B_FILE_NAME_LENGTH);
strlcpy(info->kernel_build_date, __DATE__, B_OS_NAME_LENGTH);
strlcpy(info->kernel_build_time, __TIME__, B_OS_NAME_LENGTH);
// all other stuff is architecture specific
return arch_get_system_info(info, size);
}
status_t
system_info_init(struct kernel_args *args)
{
add_debugger_command("info", &dump_info, "System info");
return arch_system_info_init(args);
}
uint32
get_haiku_revision(void)
{
return sHaikuRevision;
}
// #pragma mark -
status_t
_user_get_system_info(system_info *userInfo, size_t size)
{
system_info info;
status_t status;
// The BeBook says get_system_info() always returns B_OK,
// but that ain't true with invalid addresses
if (userInfo == NULL || !IS_USER_ADDRESS(userInfo))
return B_BAD_ADDRESS;
status = _get_system_info(&info, size);
if (status == B_OK) {
if (user_memcpy(userInfo, &info, sizeof(system_info)) < B_OK)
return B_BAD_ADDRESS;
return B_OK;
}
return status;
}