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add PID and GID to /proc/pid/status

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add /proc/pid/cmdline

refs #445
refs #447
This commit is contained in:
Tomoki Shirasawa
2015-05-18 17:45:37 +09:00
parent f4162dff52
commit 7d5a68be1b
9 changed files with 319 additions and 21 deletions
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45
kernel/procfs.c
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@@ -63,17 +63,20 @@ void create_proc_procfs_files(int pid, int cpuid)
snprintf(fname, PROCFS_NAME_MAX, "mcos%d/%d/auxv", osnum, pid);
create_proc_procfs_file(pid, fname, 0400, cpuid);
snprintf(fname, PROCFS_NAME_MAX, "mcos%d/%d/cmdline", osnum, pid);
create_proc_procfs_file(pid, fname, 0444, cpuid);
snprintf(fname, PROCFS_NAME_MAX, "mcos%d/%d/mem", osnum, pid);
create_proc_procfs_file(pid, fname, 0400, cpuid);
snprintf(fname, PROCFS_NAME_MAX, "mcos%d/%d/maps", osnum, pid);
create_proc_procfs_file(pid, fname, 0400, cpuid);
create_proc_procfs_file(pid, fname, 0444, cpuid);
snprintf(fname, PROCFS_NAME_MAX, "mcos%d/%d/pagemap", osnum, pid);
create_proc_procfs_file(pid, fname, 0400, cpuid);
create_proc_procfs_file(pid, fname, 0444, cpuid);
snprintf(fname, PROCFS_NAME_MAX, "mcos%d/%d/status", osnum, pid);
create_proc_procfs_file(pid, fname, 0400, cpuid);
create_proc_procfs_file(pid, fname, 0444, cpuid);
snprintf(fname, PROCFS_NAME_MAX, "mcos%d/%d/task/%d/mem", osnum, pid, pid);
create_proc_procfs_file(pid, fname, 0400, cpuid);
@@ -134,6 +137,9 @@ void delete_proc_procfs_files(int pid)
snprintf(fname, PROCFS_NAME_MAX, "mcos%d/%d/pagemap", osnum, pid);
delete_proc_procfs_file(pid, fname);
snprintf(fname, PROCFS_NAME_MAX, "mcos%d/%d/cmdline", osnum, pid);
delete_proc_procfs_file(pid, fname);
snprintf(fname, PROCFS_NAME_MAX, "mcos%d/%d/auxv", osnum, pid);
delete_proc_procfs_file(pid, fname);
@@ -525,8 +531,9 @@ void process_procfs_request(unsigned long rarg)
if (strcmp(p, "status") == 0) {
struct vm_range *range;
unsigned long lockedsize = 0;
char tmp[80];
char tmp[1024];
int len;
struct fork_tree_node *ftn = proc->ftn;
ihk_mc_spinlock_lock_noirq(&proc->vm->memory_range_lock);
list_for_each_entry(range, &proc->vm->vm_range_list, list) {
@@ -535,7 +542,13 @@ void process_procfs_request(unsigned long rarg)
}
ihk_mc_spinlock_unlock_noirq(&proc->vm->memory_range_lock);
sprintf(tmp, "VmLck: %9lu kB\n", (lockedsize + 1023) >> 10);
sprintf(tmp,
"Uid:\t%d\t%d\t%d\t%d\n"
"Gid:\t%d\t%d\t%d\t%d\n"
"VmLck:\t%9lu kB\n",
ftn->ruid, ftn->euid, ftn->suid, ftn->fsuid,
ftn->rgid, ftn->egid, ftn->sgid, ftn->fsgid,
(lockedsize + 1023) >> 10);
len = strlen(tmp);
if (r->offset < len) {
if (r->offset + r->count < len) {
@@ -574,6 +587,28 @@ void process_procfs_request(unsigned long rarg)
goto end;
}
/*
* mcos%d/PID/cmdline
*/
if (strcmp(p, "cmdline") == 0) {
unsigned int limit = proc->saved_cmdline_len;
unsigned int len = r->count;
if (r->offset < limit) {
if (limit < r->offset + r->count) {
len = limit - r->offset;
}
memcpy((void *)buf, ((char *) proc->saved_cmdline) + r->offset, len);
ans = len;
if (r->offset + len == limit) {
eof = 1;
}
} else if (r->offset == limit) {
ans = 0;
eof = 1;
}
goto end;
}
/*
* mcos%d/PID/taks/PID/mem
*