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vm.c: ruby_th_dtrace_setup

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* vm.c (ruby_th_dtrace_setup): extract setup for calling dtrace
  hook from RUBY_DTRACE_HOOK macro.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52338 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2015-10-29 05:32:19 +00:00
parent 56eee285be
commit 38094dd7f4
2 changed files with 62 additions and 48 deletions
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70
probes_helper.h
View file

@ -4,66 +4,40 @@
#include "ruby/ruby.h"
#include "probes.h"
VALUE rb_class_path_no_cache(VALUE _klass);
struct ruby_dtrace_method_hook_args {
const char *classname;
const char *methodname;
const char *filename;
int line_no;
volatile VALUE klass;
volatile VALUE name;
};
#define RUBY_DTRACE_HOOK(name, th, klazz, id) \
NOINLINE(int ruby_th_dtrace_setup(rb_thread_t *, VALUE, ID, struct ruby_dtrace_method_hook_args *));
#define RUBY_DTRACE_METHOD_HOOK(name, th, klazz, id) \
do { \
if (RUBY_DTRACE_##name##_ENABLED()) { \
VALUE _klass = (klazz); \
ID _id = (id); \
const char * classname; \
const char * methodname; \
const char * filename; \
if (!_klass) { \
rb_thread_method_id_and_class((th), &_id, &_klass); \
if (UNLIKELY(RUBY_DTRACE_##name##_ENABLED())) { \
struct ruby_dtrace_method_hook_args args; \
if (ruby_th_dtrace_setup(th, klazz, id, &args)) { \
RUBY_DTRACE_##name(args.classname, \
args.methodname, \
args.filename, \
args.line_no); \
} \
if (_klass) { \
if (RB_TYPE_P(_klass, T_ICLASS)) { \
_klass = RBASIC(_klass)->klass; \
} \
else if (FL_TEST(_klass, FL_SINGLETON)) { \
_klass = rb_iv_get(_klass, "__attached__"); \
} \
switch (TYPE(_klass)) { \
case T_CLASS: \
case T_ICLASS: \
case T_MODULE: \
{ \
VALUE _name = rb_class_path_no_cache(_klass); \
if (!NIL_P(_name)) { \
classname = StringValuePtr(_name); \
} \
else { \
classname = "<unknown>"; \
} \
methodname = rb_id2name(_id); \
filename = rb_sourcefile(); \
if (classname && methodname && filename) { \
RUBY_DTRACE_##name( \
classname, \
methodname, \
filename, \
rb_sourceline()); \
} \
RB_GC_GUARD(_name); \
break; \
} \
} \
} \
RB_GC_GUARD(_klass); \
} \
} while (0)
#define RUBY_DTRACE_METHOD_ENTRY_HOOK(th, klass, id) \
RUBY_DTRACE_HOOK(METHOD_ENTRY, th, klass, id)
RUBY_DTRACE_METHOD_HOOK(METHOD_ENTRY, th, klass, id)
#define RUBY_DTRACE_METHOD_RETURN_HOOK(th, klass, id) \
RUBY_DTRACE_HOOK(METHOD_RETURN, th, klass, id)
RUBY_DTRACE_METHOD_HOOK(METHOD_RETURN, th, klass, id)
#define RUBY_DTRACE_CMETHOD_ENTRY_HOOK(th, klass, id) \
RUBY_DTRACE_HOOK(CMETHOD_ENTRY, th, klass, id)
RUBY_DTRACE_METHOD_HOOK(CMETHOD_ENTRY, th, klass, id)
#define RUBY_DTRACE_CMETHOD_RETURN_HOOK(th, klass, id) \
RUBY_DTRACE_HOOK(CMETHOD_RETURN, th, klass, id)
RUBY_DTRACE_METHOD_HOOK(CMETHOD_RETURN, th, klass, id)
#endif /* RUBY_PROBES_HELPER_H */

40
vm.c
View file

@ -179,6 +179,46 @@ rb_vm_inc_const_missing_count(void)
ruby_vm_const_missing_count +=1;
}
VALUE rb_class_path_no_cache(VALUE _klass);
int
ruby_th_dtrace_setup(rb_thread_t *th, VALUE klass, ID id,
struct ruby_dtrace_method_hook_args *args)
{
enum ruby_value_type type;
if (!klass) {
if (!th) th = GET_THREAD();
if (!rb_thread_method_id_and_class(th, &id, &klass) || !klass)
return FALSE;
}
if (RB_TYPE_P(klass, T_ICLASS)) {
klass = RBASIC(klass)->klass;
}
else if (FL_TEST(klass, FL_SINGLETON)) {
klass = rb_attr_get(klass, id__attached__);
if (NIL_P(klass)) return FALSE;
}
type = BUILTIN_TYPE(klass);
if (type == T_CLASS || type == T_ICLASS || type == T_MODULE) {
VALUE name = rb_class_path_no_cache(klass);
const char *classname;
const char *methodname = rb_id2name(id);
const char *filename = rb_sourcefile();
if (methodname && filename) {
if (NIL_P(name) || !(classname = StringValuePtr(name)))
classname = "<unknown>";
args->classname = classname;
args->methodname = methodname;
args->filename = filename;
args->line_no = rb_sourceline();
args->klass = klass;
args->name = name;
return TRUE;
}
}
return FALSE;
}
/*
* call-seq:
* RubyVM.stat -> Hash