struct ftrace_ops ftrace_list_end __read_mostly = {
.func = ftrace_stub,
- .flags = FTRACE_OPS_FL_RECURSION_SAFE | FTRACE_OPS_FL_STUB,
+ .flags = FTRACE_OPS_FL_STUB,
INIT_OPS_HASH(ftrace_list_end)
};
#if ARCH_SUPPORTS_FTRACE_OPS
static void ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
- struct ftrace_ops *op, struct pt_regs *regs);
+ struct ftrace_ops *op, struct ftrace_regs *fregs);
#else
/* See comment below, where ftrace_ops_list_func is defined */
static void ftrace_ops_no_ops(unsigned long ip, unsigned long parent_ip);
}
static void ftrace_pid_func(unsigned long ip, unsigned long parent_ip,
- struct ftrace_ops *op, struct pt_regs *regs)
+ struct ftrace_ops *op, struct ftrace_regs *fregs)
{
struct trace_array *tr = op->private;
int pid;
return;
}
- op->saved_func(ip, parent_ip, op, regs);
+ op->saved_func(ip, parent_ip, op, fregs);
}
static void ftrace_sync_ipi(void *data)
static void
function_profile_call(unsigned long ip, unsigned long parent_ip,
- struct ftrace_ops *ops, struct pt_regs *regs)
+ struct ftrace_ops *ops, struct ftrace_regs *fregs)
{
struct ftrace_profile_stat *stat;
struct ftrace_profile *rec;
#else
static struct ftrace_ops ftrace_profile_ops __read_mostly = {
.func = function_profile_call,
- .flags = FTRACE_OPS_FL_RECURSION_SAFE | FTRACE_OPS_FL_INITIALIZED,
+ .flags = FTRACE_OPS_FL_INITIALIZED,
INIT_OPS_HASH(ftrace_profile_ops)
};
.local_hash.notrace_hash = EMPTY_HASH,
.local_hash.filter_hash = EMPTY_HASH,
INIT_OPS_HASH(global_ops)
- .flags = FTRACE_OPS_FL_RECURSION_SAFE |
- FTRACE_OPS_FL_INITIALIZED |
+ .flags = FTRACE_OPS_FL_INITIALIZED |
FTRACE_OPS_FL_PID,
};
else
rec->flags &= ~FTRACE_FL_TRAMP_EN;
}
+
if (flag & FTRACE_FL_DIRECT) {
/*
* If there's only one user (direct_ops helper)
}
static void call_direct_funcs(unsigned long ip, unsigned long pip,
- struct ftrace_ops *ops, struct pt_regs *regs)
+ struct ftrace_ops *ops, struct ftrace_regs *fregs)
{
+ struct pt_regs *regs = ftrace_get_regs(fregs);
unsigned long addr;
addr = ftrace_find_rec_direct(ip);
struct ftrace_ops direct_ops = {
.func = call_direct_funcs,
- .flags = FTRACE_OPS_FL_IPMODIFY | FTRACE_OPS_FL_RECURSION_SAFE
+ .flags = FTRACE_OPS_FL_IPMODIFY
| FTRACE_OPS_FL_DIRECT | FTRACE_OPS_FL_SAVE_REGS
| FTRACE_OPS_FL_PERMANENT,
/*
struct ftrace_hash **orig_hash, *new_hash;
LIST_HEAD(process_mods);
char *func;
- int ret;
mutex_lock(&ops->func_hash->regex_lock);
mutex_lock(&ftrace_lock);
- ret = ftrace_hash_move_and_update_ops(ops, orig_hash,
+ ftrace_hash_move_and_update_ops(ops, orig_hash,
new_hash, enable);
mutex_unlock(&ftrace_lock);
core_initcall(ftrace_mod_cmd_init);
static void function_trace_probe_call(unsigned long ip, unsigned long parent_ip,
- struct ftrace_ops *op, struct pt_regs *pt_regs)
+ struct ftrace_ops *op, struct ftrace_regs *fregs)
{
struct ftrace_probe_ops *probe_ops;
struct ftrace_func_probe *probe;
struct ftrace_hash **orig_hash;
struct trace_parser *parser;
int filter_hash;
- int ret;
if (file->f_mode & FMODE_READ) {
iter = m->private;
orig_hash = &iter->ops->func_hash->notrace_hash;
mutex_lock(&ftrace_lock);
- ret = ftrace_hash_move_and_update_ops(iter->ops, orig_hash,
+ ftrace_hash_move_and_update_ops(iter->ops, orig_hash,
iter->hash, filter_hash);
mutex_unlock(&ftrace_lock);
} else {
struct ftrace_ops global_ops = {
.func = ftrace_stub,
- .flags = FTRACE_OPS_FL_RECURSION_SAFE |
- FTRACE_OPS_FL_INITIALIZED |
+ .flags = FTRACE_OPS_FL_INITIALIZED |
FTRACE_OPS_FL_PID,
};
static nokprobe_inline void
__ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
- struct ftrace_ops *ignored, struct pt_regs *regs)
+ struct ftrace_ops *ignored, struct ftrace_regs *fregs)
{
+ struct pt_regs *regs = ftrace_get_regs(fregs);
struct ftrace_ops *op;
int bit;
- bit = trace_test_and_set_recursion(TRACE_LIST_START, TRACE_LIST_MAX);
+ bit = trace_test_and_set_recursion(ip, parent_ip, TRACE_LIST_START, TRACE_LIST_MAX);
if (bit < 0)
return;
pr_warn("op=%p %pS\n", op, op);
goto out;
}
- op->func(ip, parent_ip, op, regs);
+ op->func(ip, parent_ip, op, fregs);
}
} while_for_each_ftrace_op(op);
out:
*/
#if ARCH_SUPPORTS_FTRACE_OPS
static void ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
- struct ftrace_ops *op, struct pt_regs *regs)
+ struct ftrace_ops *op, struct ftrace_regs *fregs)
{
- __ftrace_ops_list_func(ip, parent_ip, NULL, regs);
+ __ftrace_ops_list_func(ip, parent_ip, NULL, fregs);
}
NOKPROBE_SYMBOL(ftrace_ops_list_func);
#else
* this function will be called by the mcount trampoline.
*/
static void ftrace_ops_assist_func(unsigned long ip, unsigned long parent_ip,
- struct ftrace_ops *op, struct pt_regs *regs)
+ struct ftrace_ops *op, struct ftrace_regs *fregs)
{
int bit;
- bit = trace_test_and_set_recursion(TRACE_LIST_START, TRACE_LIST_MAX);
+ bit = trace_test_and_set_recursion(ip, parent_ip, TRACE_LIST_START, TRACE_LIST_MAX);
if (bit < 0)
return;
preempt_disable_notrace();
if (!(op->flags & FTRACE_OPS_FL_RCU) || rcu_is_watching())
- op->func(ip, parent_ip, op, regs);
+ op->func(ip, parent_ip, op, fregs);
preempt_enable_notrace();
trace_clear_recursion(bit);
ftrace_func_t ftrace_ops_get_func(struct ftrace_ops *ops)
{
/*
- * If the function does not handle recursion, needs to be RCU safe,
- * or does per cpu logic, then we need to call the assist handler.
+ * If the function does not handle recursion or needs to be RCU safe,
+ * then we need to call the assist handler.
*/
- if (!(ops->flags & FTRACE_OPS_FL_RECURSION_SAFE) ||
- ops->flags & FTRACE_OPS_FL_RCU)
+ if (ops->flags & (FTRACE_OPS_FL_RECURSION |
+ FTRACE_OPS_FL_RCU))
return ftrace_ops_assist_func;
return ops->func;