gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

stat(), get_sched_affinity(), gettimeofday() and some detailed debug msgs

Browse Source
This commit is contained in:
Balazs Gerofi
2012-05-19 16:54:14 +09:00
parent c8d6ec9356
commit 9394c9fa54
3 changed files with 240 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
kernel/syscall.c
View File

@ -15,6 +15,8 @@
#include <ctype.h>
#include <waitq.h>
#include <rlimit.h>
#include <affinity.h>
#include <time.h>
/* Headers taken from kitten LWK */
#include <lwk/stddef.h>
@ -72,6 +74,10 @@ static int do_syscall(struct syscall_request *req, aal_mc_user_context_t *ctx)
{
struct syscall_response *res = cpu_local_var(scp).response_va;
dkprintf("SC(%d)[%3d] sending syscall\n",
aal_mc_get_processor_id(),
req->number);
send_syscall(req);
dkprintf("SC(%d)[%3d] waiting for host.. \n",
@ -98,6 +104,7 @@ long sys_brk(int n, aal_mc_user_context_t *ctx)
extend_process_region(cpu_local_var(current),
region->brk_start, region->brk_end,
address);
return region->brk_end;
}
@ -153,11 +160,31 @@ static int stop(void)
SYSCALL_DECLARE(open)
{
SYSCALL_HEADER;
dkprintf("open: %s\n", (char*)aal_mc_syscall_arg0(ctx));
SYSCALL_ARGS_3(MI, D, D);
SYSCALL_FOOTER;
}
SYSCALL_DECLARE(stat)
{
SYSCALL_HEADER;
dkprintf("stat(\"%s\");\n", (char*)aal_mc_syscall_arg0(ctx));
SYSCALL_ARGS_2(D, D);
SYSCALL_FOOTER;
}
SYSCALL_DECLARE(gettimeofday)
{
SYSCALL_HEADER;
dkprintf("gettimeofday() \n");
SYSCALL_ARGS_1(MO);
SYSCALL_FOOTER;
}
static DECLARE_WAITQ(my_waitq);
SYSCALL_DECLARE(ioctl)
@ -254,7 +281,7 @@ SYSCALL_DECLARE(pwrite)
SYSCALL_DECLARE(close)
{
kprintf("[%d] close() \n", aal_mc_get_processor_id());
dkprintf("[%d] close() \n", aal_mc_get_processor_id());
return -EBADF;
/*
@ -614,7 +641,7 @@ SYSCALL_DECLARE(getrlimit)
case RLIMIT_STACK:
dkprintf("[%d] getrlimit() RLIMIT_STACK\n", aal_mc_get_processor_id());
rlm->rlim_cur = (128*4096); /* Linux provides 8MB */
rlm->rlim_cur = (512*4096); /* Linux provides 8MB */
rlm->rlim_max = (1024*1024*1024);
ret = 0;
break;
@ -627,6 +654,23 @@ SYSCALL_DECLARE(getrlimit)
return ret;
}
SYSCALL_DECLARE(sched_getaffinity)
{
//int pid = (int)aal_mc_syscall_arg0(ctx);
//int size = (int)aal_mc_syscall_arg1(ctx);
int cpu_id;
cpu_set_t *mask = (cpu_set_t *)aal_mc_syscall_arg2(ctx);
CPU_ZERO(mask);
for (cpu_id = 0; cpu_id < 120; ++cpu_id)
CPU_SET(cpu_id, mask);
dkprintf("sched_getaffinity returns full mask\n");
return 0;
}
SYSCALL_DECLARE(noop)
{
kprintf("noop() \n");
@ -638,6 +682,7 @@ static long (*syscall_table[])(int, aal_mc_user_context_t *) = {
[1] = sys_write,
[2] = sys_open,
[3] = sys_close,
[4] = sys_stat,
[5] = sys_fstat,
[8] = sys_lseek,
[9] = sys_mmap,
@ -654,6 +699,7 @@ static long (*syscall_table[])(int, aal_mc_user_context_t *) = {
[56] = sys_clone,
[60] = sys_exit,
[63] = sys_uname,
[96] = sys_gettimeofday,
[97] = sys_getrlimit,
[102] = sys_getxid,
[104] = sys_getxid,
@ -663,6 +709,7 @@ static long (*syscall_table[])(int, aal_mc_user_context_t *) = {
[111] = sys_getxid,
[158] = sys_arch_prctl,
[202] = sys_futex,
[204] = sys_sched_getaffinity,
[218] = sys_set_tid_address,
[231] = sys_exit_group,
[273] = sys_set_robust_list,
@ -698,7 +745,9 @@ long syscall(int num, aal_mc_user_context_t *ctx)
if (syscall_table[num]) {
l = syscall_table[num](num, ctx);
dkprintf(" %lx\n", l);
dkprintf("SC(%d)[%3d] ret: %d\n",
aal_mc_get_processor_id(), num, l);
} else {
dkprintf("USC[%3d](%lx, %lx, %lx, %lx, %lx) @ %lx | %lx\n", num,
aal_mc_syscall_arg0(ctx), aal_mc_syscall_arg1(ctx),