minix/servers/procfs/root.c
Lionel Sambuc b1c4ba4ab6 ARM updates
Due to the ABI we are using we have to use the earm architecture
moniker for the build system to behave correctly. This involves
then some headers to move around.

There is also a few related Makefile updates as well as minor
source code corrections.
2013-01-17 10:03:58 +01:00

211 lines
5.7 KiB
C

/* ProcFS - root.c - by Alen Stojanov and David van Moolenbroek */
#include "inc.h"
#if defined (__i386__)
#include <machine/pci.h>
#endif
#include <minix/dmap.h>
#include "cpuinfo.h"
#include "mounts.h"
static void root_hz(void);
static void root_uptime(void);
static void root_loadavg(void);
static void root_kinfo(void);
static void root_meminfo(void);
#if defined(__i386__)
static void root_pci(void);
#endif
static void root_dmap(void);
static void root_ipcvecs(void);
struct file root_files[] = {
{ "hz", REG_ALL_MODE, (data_t) root_hz },
{ "uptime", REG_ALL_MODE, (data_t) root_uptime },
{ "loadavg", REG_ALL_MODE, (data_t) root_loadavg },
{ "kinfo", REG_ALL_MODE, (data_t) root_kinfo },
{ "meminfo", REG_ALL_MODE, (data_t) root_meminfo },
#if defined(__i386__)
{ "pci", REG_ALL_MODE, (data_t) root_pci },
#endif
{ "dmap", REG_ALL_MODE, (data_t) root_dmap },
#if defined(__i386__)
{ "cpuinfo", REG_ALL_MODE, (data_t) root_cpuinfo },
#endif
{ "ipcvecs", REG_ALL_MODE, (data_t) root_ipcvecs },
{ "mounts", REG_ALL_MODE, (data_t) root_mounts },
{ NULL, 0, NULL }
};
/*===========================================================================*
* root_hz *
*===========================================================================*/
static void root_hz(void)
{
/* Print the system clock frequency.
*/
buf_printf("%lu\n", (long) sys_hz());
}
/*===========================================================================*
* root_loadavg *
*===========================================================================*/
static void root_loadavg(void)
{
/* Print load averages.
*/
struct load loads[3];
ldiv_t avg[3];
if (procfs_getloadavg(loads, 3) != 3)
return;
avg[0] = ldiv(100L * loads[0].proc_load / loads[0].ticks, 100);
avg[1] = ldiv(100L * loads[1].proc_load / loads[1].ticks, 100);
avg[2] = ldiv(100L * loads[2].proc_load / loads[2].ticks, 100);
buf_printf("%ld.%0.2ld %ld.%02ld %ld.%02ld\n",
avg[0].quot, avg[0].rem, avg[1].quot, avg[1].rem,
avg[2].quot, avg[2].rem);
}
/*===========================================================================*
* root_uptime *
*===========================================================================*/
static void root_uptime(void)
{
/* Print the current uptime.
*/
clock_t ticks;
ldiv_t division;
if (getuptime(&ticks) != OK)
return;
division = ldiv(100L * ticks / sys_hz(), 100L);
buf_printf("%ld.%0.2ld\n", division.quot, division.rem);
}
/*===========================================================================*
* root_kinfo *
*===========================================================================*/
static void root_kinfo(void)
{
/* Print general kernel information.
*/
struct kinfo kinfo;
if (sys_getkinfo(&kinfo) != OK)
return;
buf_printf("%u %u\n", kinfo.nr_procs, kinfo.nr_tasks);
}
/*===========================================================================*
* root_meminfo *
*===========================================================================*/
static void root_meminfo(void)
{
/* Print general memory information.
*/
struct vm_stats_info vsi;
if (vm_info_stats(&vsi) != OK)
return;
buf_printf("%u %lu %lu %lu %lu\n", vsi.vsi_pagesize,
vsi.vsi_total, vsi.vsi_free, vsi.vsi_largest, vsi.vsi_cached);
}
/*===========================================================================*
* root_pci *
*===========================================================================*/
#if defined(__i386__)
static void root_pci(void)
{
/* Print information about PCI devices present in the system.
*/
u16_t vid, did;
u8_t bcr, scr, pifr;
char *slot_name, *dev_name;
int r, devind;
static int first = TRUE;
/* This should be taken care of behind the scenes by the PCI lib. */
if (first) {
pci_init();
first = FALSE;
}
/* Iterate over all devices, printing info for each of them. */
r = pci_first_dev(&devind, &vid, &did);
while (r == 1) {
slot_name = pci_slot_name(devind);
dev_name = pci_dev_name(vid, did);
bcr = pci_attr_r8(devind, PCI_BCR);
scr = pci_attr_r8(devind, PCI_SCR);
pifr = pci_attr_r8(devind, PCI_PIFR);
buf_printf("%s %x/%x/%x %04X:%04X %s\n",
slot_name ? slot_name : "-",
bcr, scr, pifr, vid, did,
dev_name ? dev_name : "");
r = pci_next_dev(&devind, &vid, &did);
}
}
#endif /* defined(__i386__) */
/*===========================================================================*
* root_dmap *
*===========================================================================*/
static void root_dmap(void)
{
struct dmap dmap[NR_DEVICES];
int i;
if (getsysinfo(VFS_PROC_NR, SI_DMAP_TAB, dmap, sizeof(dmap)) != OK)
return;
for (i = 0; i < NR_DEVICES; i++) {
if (dmap[i].dmap_driver == NONE)
continue;
buf_printf("%u %s %u\n", i, dmap[i].dmap_label,
dmap[i].dmap_driver);
}
}
/*===========================================================================*
* root_ipcvecs *
*===========================================================================*/
static void root_ipcvecs(void)
{
extern struct minix_kerninfo *_minix_kerninfo;
extern struct minix_ipcvecs _minix_ipcvecs;
/* only print this if the kernel provides the info; otherwise binaries
* will be using their own in-libc vectors that are normal symbols in the
* binary.
*/
if(!_minix_kerninfo || !(_minix_kerninfo->ki_flags & MINIX_KIF_IPCVECS))
return;
/* print the vectors with an descriptive name and the additional (k)
* to distinguish them from regular symbols.
*/
#define PRINT_ENTRYPOINT(name) \
buf_printf("%08lx T %s(k)\n", _minix_ipcvecs.name, #name)
PRINT_ENTRYPOINT(sendrec);
PRINT_ENTRYPOINT(send);
PRINT_ENTRYPOINT(notify);
PRINT_ENTRYPOINT(senda);
PRINT_ENTRYPOINT(sendnb);
PRINT_ENTRYPOINT(receive);
PRINT_ENTRYPOINT(do_kernel_call);
}