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clean up unused code

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This commit is contained in:
Tomoki Shirasawa
2017-06-27 13:46:38 +09:00
parent 07efb3ab9a
commit 4f9865cc8f
3 changed files with 0 additions and 346 deletions
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1
executer/include/uprotocol.h
View File

@ -58,7 +58,6 @@
#define MCEXEC_UP_UTIL_THREAD1 0x30a02920
#define MCEXEC_UP_UTIL_THREAD2 0x30a02921
#define MCEXEC_UP_SIG_THREAD 0x30a02922
#define MCEXEC_UP_SWITCH_THREAD 0x30a02923
#define MCEXEC_UP_SYSCALL_THREAD 0x30a02924
#define MCEXEC_UP_TERMINATE_THREAD 0x30a02925

344
executer/kernel/mcctrl/control.c
View File

@ -91,7 +91,6 @@ int mcctrl_ikc_set_recv_cpu(ihk_os_t os, int cpu);
int syscall_backward(struct mcctrl_usrdata *, int, unsigned long, unsigned long,
unsigned long, unsigned long, unsigned long,
unsigned long, unsigned long *);
long mcexec_switch_thread(ihk_os_t os, unsigned long code, struct file *file);
static long mcexec_prepare_image(ihk_os_t os,
struct program_load_desc * __user udesc)
@ -358,28 +357,6 @@ static long mcexec_debug_log(ihk_os_t os, unsigned long arg)
int mcexec_close_exec(ihk_os_t os);
int mcexec_destroy_per_process_data(ihk_os_t os);
#if 0
static unsigned long mod_sys_call_table(int num, unsigned long func)
{
static unsigned long *sys_call_table = NULL;
unsigned long oldval;
if (!sys_call_table) {
sys_call_table =
(unsigned long *)kallsyms_lookup_name("sys_call_table");
if (!sys_call_table) {
printk("sys_call_table not found\n");
return -ENOENT;
}
}
oldval = sys_call_table[num];
if (func && sys_call_table[num] != func) {
sys_call_table[num] = func;
}
return oldval;
}
#endif
static void release_handler(ihk_os_t os, void *param)
{
struct mcos_handler_info *info = param;
@ -2133,24 +2110,6 @@ mcexec_util_thread1(ihk_os_t os, unsigned long arg, struct file *file)
return rc;
}
#if 0
static struct {
unsigned long org_futex;
unsigned long org_brk;
unsigned long org_clone;
unsigned long org_fork;
unsigned long org_vfork;
unsigned long org_gettid;
unsigned long org_mmap;
unsigned long org_munmap;
unsigned long org_mprotect;
unsigned long org_mremap;
unsigned long org_execve;
unsigned long org_exit_group;
unsigned long org_exit;
} org_syscalls;
#endif
static inline struct host_thread *get_host_thread(void)
{
int pid = task_tgid_vnr(current);
@ -2167,225 +2126,6 @@ static inline struct host_thread *get_host_thread(void)
return thread;
}
#if 0
#define DEF_SYSCALL(f, v, n) \
static asmlinkage unsigned long f(unsigned long p1, unsigned long p2, \
unsigned long p3, unsigned long p4, unsigned long p5, \
unsigned long p6)\
{\
struct host_thread *thread = get_host_thread();\
\
if (thread) {\
unsigned long ret;\
int rc;\
\
rc = syscall_backward(thread->handler->ud, n, p1, p2, p3, p4, \
p5, p6, &ret);\
if (rc < 0)\
return rc;\
return ret;\
}\
\
return ((asmlinkage unsigned long (*)(unsigned long, unsigned long,\
unsigned long, unsigned long, unsigned long, unsigned long))\
org_syscalls.v)(p1, p2, p3, p4, p5, p6);\
}
#define BAD_SYSCALL(f, v) \
static asmlinkage unsigned long f(unsigned long p1, unsigned long p2, \
unsigned long p3, unsigned long p4, unsigned long p5, \
unsigned long p6)\
{\
struct host_thread *thread = get_host_thread();\
\
if (thread) {\
return -ENOSYS;\
}\
\
return ((asmlinkage unsigned long (*)(unsigned long, unsigned long,\
unsigned long, unsigned long, unsigned long, unsigned long))\
org_syscalls.v)(p1, p2, p3, p4, p5, p6);\
}
DEF_SYSCALL(mod_futex, org_futex, __NR_futex)
DEF_SYSCALL(mod_brk, org_brk, __NR_brk)
DEF_SYSCALL(mod_gettid, org_gettid, __NR_gettid)
DEF_SYSCALL(mod_mmap, org_mmap, __NR_mmap)
DEF_SYSCALL(mod_munmap, org_munmap, __NR_munmap)
DEF_SYSCALL(mod_mremap, org_mremap, __NR_mremap)
DEF_SYSCALL(mod_mprotect, org_mprotect, __NR_mprotect)
BAD_SYSCALL(mod_clone, org_clone)
BAD_SYSCALL(mod_fork, org_fork)
BAD_SYSCALL(mod_vfork, org_vfork)
BAD_SYSCALL(mod_execve, org_execve)
static asmlinkage unsigned long mod_exit(int exit_status)
{
struct host_thread *thread = get_host_thread();
if (thread) {
unsigned long code = (exit_status & 255) << 8;
ihk_os_t os = thread->handler->ud->os;
struct file *file = thread->handler->file;
mcexec_switch_thread(os, code, file);
return 0;
}
return ((asmlinkage unsigned long (*)(int))
org_syscalls.org_exit)(exit_status);
}
static asmlinkage unsigned long mod_exit_group(int exit_status)
{
struct host_thread *thread = get_host_thread();
if (thread) {
unsigned long code = (exit_status & 255) << 8;
ihk_os_t os = thread->handler->ud->os;
struct file *file = thread->handler->file;
code |= 0x100000000;
mcexec_switch_thread(os, code, file);
return 0;
}
return ((asmlinkage unsigned long (*)(int))
org_syscalls.org_exit_group)(exit_status);
}
static void save_syscalls(void)
{
#define SAVE_SYSCALL(v, f, n) \
do { \
unsigned long org; \
if (org_syscalls.v == 0L && \
(org = mod_sys_call_table(n, 0L)) != (unsigned long)f) \
org_syscalls.v = org; \
} while (0)
SAVE_SYSCALL(org_futex, mod_futex, __NR_futex);
SAVE_SYSCALL(org_brk, mod_brk, __NR_brk);
SAVE_SYSCALL(org_clone, mod_clone, __NR_clone);
SAVE_SYSCALL(org_fork, mod_fork, __NR_fork);
SAVE_SYSCALL(org_vfork, mod_vfork, __NR_vfork);
SAVE_SYSCALL(org_gettid, mod_gettid, __NR_gettid);
SAVE_SYSCALL(org_mmap, mod_mmap, __NR_mmap);
SAVE_SYSCALL(org_munmap, mod_munmap, __NR_munmap);
SAVE_SYSCALL(org_mprotect, mod_mprotect, __NR_mprotect);
SAVE_SYSCALL(org_mremap, mod_mremap, __NR_mremap);
SAVE_SYSCALL(org_execve, mod_execve, __NR_execve);
SAVE_SYSCALL(org_exit_group, mod_exit_group, __NR_exit_group);
SAVE_SYSCALL(org_exit, mod_exit, __NR_exit);
}
static void mod_syscalls(void)
{
#define MOD_SYSCALL(f, n) \
do { \
mod_sys_call_table(n, (unsigned long)f); \
} while (0)
MOD_SYSCALL(mod_futex, __NR_futex);
MOD_SYSCALL(mod_brk, __NR_brk);
MOD_SYSCALL(mod_clone, __NR_clone);
MOD_SYSCALL(mod_fork, __NR_fork);
MOD_SYSCALL(mod_vfork, __NR_vfork);
MOD_SYSCALL(mod_gettid, __NR_gettid);
MOD_SYSCALL(mod_mmap, __NR_mmap);
MOD_SYSCALL(mod_munmap, __NR_munmap);
MOD_SYSCALL(mod_mprotect, __NR_mprotect);
MOD_SYSCALL(mod_mremap, __NR_mremap);
MOD_SYSCALL(mod_execve, __NR_execve);
MOD_SYSCALL(mod_exit_group, __NR_exit_group);
MOD_SYSCALL(mod_exit, __NR_exit);
}
static void restore_syscalls(void)
{
#define RESTORE_SYSCALL(v, n) \
do { \
mod_sys_call_table(n, org_syscalls.v); \
} while (0)
RESTORE_SYSCALL(org_futex, __NR_futex);
RESTORE_SYSCALL(org_brk, __NR_brk);
RESTORE_SYSCALL(org_clone, __NR_clone);
RESTORE_SYSCALL(org_fork, __NR_fork);
RESTORE_SYSCALL(org_vfork, __NR_vfork);
RESTORE_SYSCALL(org_gettid, __NR_gettid);
RESTORE_SYSCALL(org_mmap, __NR_mmap);
RESTORE_SYSCALL(org_munmap, __NR_munmap);
RESTORE_SYSCALL(org_mprotect, __NR_mprotect);
RESTORE_SYSCALL(org_mremap, __NR_mremap);
RESTORE_SYSCALL(org_execve, __NR_execve);
RESTORE_SYSCALL(org_exit_group, __NR_exit_group);
RESTORE_SYSCALL(org_exit, __NR_exit);
}
static void process_exit_prober(void *data, struct task_struct *tsk)
{
struct mcos_handler_info *info;
unsigned long flags;
struct host_thread *thread;
struct host_thread *prev;
int pid = task_tgid_vnr(tsk);
int tid = task_pid_vnr(tsk);
int code;
struct ikc_scd_packet *packet;
struct mcctrl_usrdata *usrdata = NULL;
struct mcctrl_per_proc_data *ppd = NULL;
if (!host_threads) {
return;
}
write_lock_irqsave(&host_thread_lock, flags);
for (prev = NULL, thread = host_threads; thread;
prev = thread, thread = thread->next)
if(thread->pid == pid && thread->tid == tid)
break;
if (!thread) {
write_unlock_irqrestore(&host_thread_lock, flags);
return;
}
info = thread->handler;
if (!info)
goto err;
usrdata = info->ud;
code = tsk->exit_code;
ppd = mcctrl_get_per_proc_data(usrdata, pid);
if (!ppd) {
kprintf("%s: ERROR: no packet registered for TID %d\n",
__FUNCTION__, task_pid_vnr(current));
goto err;
}
packet = (struct ikc_scd_packet *)mcctrl_get_per_thread_data(ppd, tsk);
if (!packet) {
goto err;
}
mcctrl_delete_per_thread_data(ppd, tsk);
__return_syscall(usrdata->os, packet, code, tid);
ihk_ikc_release_packet((struct ihk_ikc_free_packet *)packet,
(usrdata->channels + packet->ref)->c);
err:
if (ppd)
mcctrl_put_per_proc_data(ppd);
if (prev)
prev->next = thread->next;
else
host_threads = thread->next;
write_unlock_irqrestore(&host_thread_lock, flags);
kfree(thread);
read_lock_irqsave(&host_thread_lock, flags);
if (!host_threads) {
restore_syscalls();
unregister_trace_sched_process_exit(process_exit_prober, NULL);
}
read_unlock_irqrestore(&host_thread_lock, flags);
}
#endif
long
mcexec_util_thread2(ihk_os_t os, unsigned long arg, struct file *file)
{
@ -2409,18 +2149,9 @@ mcexec_util_thread2(ihk_os_t os, unsigned long arg, struct file *file)
thread->handler = info;
write_lock_irqsave(&host_thread_lock, flags);
#if 0
if (!host_threads) {
save_syscalls();
register_trace_sched_process_exit(process_exit_prober, NULL);
}
#endif
thread->next = host_threads;
host_threads = thread;
write_unlock_irqrestore(&host_thread_lock, flags);
#if 0
mod_syscalls();
#endif
return 0;
}
@ -2448,67 +2179,6 @@ mcexec_sig_thread(ihk_os_t os, unsigned long arg, struct file *file)
return -EINVAL;
}
long
mcexec_switch_thread(ihk_os_t os, unsigned long code, struct file *file)
{
int tid = task_pid_vnr(current);
int pid = task_tgid_vnr(current);
unsigned long flags;
struct host_thread *thread;
struct host_thread *prev;
struct ikc_scd_packet *packet;
struct mcctrl_usrdata *usrdata = ihk_host_os_get_usrdata(os);
struct mcctrl_per_proc_data *ppd;
write_lock_irqsave(&host_thread_lock, flags);
for (prev = NULL, thread = host_threads; thread;
prev = thread, thread = thread->next)
if(thread->tid == tid)
break;
if (!thread) {
write_unlock_irqrestore(&host_thread_lock, flags);
return -EINVAL;
}
ppd = mcctrl_get_per_proc_data(usrdata, pid);
if (!ppd) {
kprintf("%s: ERROR: no per-process structure for PID %d??\n",
__FUNCTION__, task_tgid_vnr(current));
goto err;
}
packet = (struct ikc_scd_packet *)mcctrl_get_per_thread_data(ppd,
current);
if (!packet) {
kprintf("%s: ERROR: no packet registered for TID %d\n",
__FUNCTION__, tid);
goto err;
}
mcctrl_delete_per_thread_data(ppd, current);
__return_syscall(usrdata->os, packet, code, tid);
ihk_ikc_release_packet((struct ihk_ikc_free_packet *)packet,
(usrdata->channels + packet->ref)->c);
err:
if(ppd)
mcctrl_put_per_proc_data(ppd);
if (prev)
prev->next = thread->next;
else
host_threads = thread->next;
write_unlock_irqrestore(&host_thread_lock, flags);
kfree(thread);
#if 0
read_lock_irqsave(&host_thread_lock, flags);
if (!host_threads) {
restore_syscalls();
unregister_trace_sched_process_exit(process_exit_prober, NULL);
}
read_unlock_irqrestore(&host_thread_lock, flags);
#endif
set_user_sp(thread->usp);
return 0;
}
long
mcexec_terminate_thread(ihk_os_t os, unsigned long *param, struct file *file)
{
@ -2522,17 +2192,14 @@ mcexec_terminate_thread(ihk_os_t os, unsigned long *param, struct file *file)
struct mcctrl_usrdata *usrdata = ihk_host_os_get_usrdata(os);
struct mcctrl_per_proc_data *ppd;
printk("mcexec_terminate_thread\n");
write_lock_irqsave(&host_thread_lock, flags);
for (prev = NULL, thread = host_threads; thread;
prev = thread, thread = thread->next) {
printk("thread tid=%d\n", thread->tid);
if(thread->tid == tid)
break;
}
if (!thread) {
write_unlock_irqrestore(&host_thread_lock, flags);
printk("mcexec_terminate_thread no thread pid=%d tid=%d\n", pid, tid);
return -EINVAL;
}
@ -2581,14 +2248,6 @@ mcexec_syscall_thread(ihk_os_t os, unsigned long arg, struct file *file)
if (copy_from_user(&param, uparam, sizeof param)) {
return -EFAULT;
}
if (param.number == __NR_exit ||
param.number == __NR_exit_group) {
unsigned long code = (param.args[0] & 255) << 8;
if (param.number == __NR_exit_group)
code |= 0x100000000L;
mcexec_switch_thread(os, code, file);
return 0;
}
rc = syscall_backward(ihk_host_os_get_usrdata(os), param.number,
param.args[0], param.args[1], param.args[2],
param.args[3], param.args[4], param.args[5],
@ -2707,9 +2366,6 @@ long __mcctrl_control(ihk_os_t os, unsigned int req, unsigned long arg,
case MCEXEC_UP_SIG_THREAD:
return mcexec_sig_thread(os, arg, file);
case MCEXEC_UP_SWITCH_THREAD:
return mcexec_switch_thread(os, arg, file);
case MCEXEC_UP_SYSCALL_THREAD:
return mcexec_syscall_thread(os, arg, file);

1
executer/kernel/mcctrl/driver.c
View File

@ -84,7 +84,6 @@ static struct ihk_os_user_call_handler mcctrl_uchs[] = {
{ .request = MCEXEC_UP_UTIL_THREAD1, .func = mcctrl_ioctl },
{ .request = MCEXEC_UP_UTIL_THREAD2, .func = mcctrl_ioctl },
{ .request = MCEXEC_UP_SIG_THREAD, .func = mcctrl_ioctl },
{ .request = MCEXEC_UP_SWITCH_THREAD, .func = mcctrl_ioctl },
{ .request = MCEXEC_UP_SYSCALL_THREAD, .func = mcctrl_ioctl },
{ .request = MCEXEC_UP_TERMINATE_THREAD, .func = mcctrl_ioctl },
{ .request = MCEXEC_UP_DEBUG_LOG, .func = mcctrl_ioctl },