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8232211: Remove dead code from os.hpp|cpp

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Reviewed-by: dholmes, dcubed, rehn
This commit is contained in:
Claes Redestad 2019-10-17 00:00:13 +02:00
parent 31afddccae
commit 638fe2b833
17 changed files with 2 additions and 316 deletions
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56
src/hotspot/os/linux/os_linux.cpp
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@ -148,11 +148,9 @@ uintptr_t os::Linux::_initial_thread_stack_size = 0;
int (*os::Linux::_pthread_getcpuclockid)(pthread_t, clockid_t *) = NULL;
int (*os::Linux::_pthread_setname_np)(pthread_t, const char*) = NULL;
Mutex* os::Linux::_createThread_lock = NULL;
pthread_t os::Linux::_main_thread;
int os::Linux::_page_size = -1;
bool os::Linux::_supports_fast_thread_cpu_time = false;
uint32_t os::Linux::_os_version = 0;
const char * os::Linux::_glibc_version = NULL;
const char * os::Linux::_libpthread_version = NULL;
@ -1364,8 +1362,6 @@ jlong os::elapsed_frequency() {
}
bool os::supports_vtime() { return true; }
bool os::enable_vtime() { return false; }
bool os::vtime_enabled() { return false; }
double os::elapsedVTime() {
struct rusage usage;
@ -4823,48 +4819,6 @@ jlong os::Linux::fast_thread_cpu_time(clockid_t clockid) {
return (tp.tv_sec * NANOSECS_PER_SEC) + tp.tv_nsec;
}
void os::Linux::initialize_os_info() {
assert(_os_version == 0, "OS info already initialized");
struct utsname _uname;
uint32_t major;
uint32_t minor;
uint32_t fix;
int rc;
// Kernel version is unknown if
// verification below fails.
_os_version = 0x01000000;
rc = uname(&_uname);
if (rc != -1) {
rc = sscanf(_uname.release,"%d.%d.%d", &major, &minor, &fix);
if (rc == 3) {
if (major < 256 && minor < 256 && fix < 256) {
// Kernel version format is as expected,
// set it overriding unknown state.
_os_version = (major << 16) |
(minor << 8 ) |
(fix << 0 ) ;
}
}
}
}
uint32_t os::Linux::os_version() {
assert(_os_version != 0, "not initialized");
return _os_version & 0x00FFFFFF;
}
bool os::Linux::os_version_is_known() {
assert(_os_version != 0, "not initialized");
return _os_version & 0x01000000 ? false : true;
}
/////
// glibc on Linux platform uses non-documented flag
// to indicate, that some special sort of signal
@ -5084,8 +5038,6 @@ void os::init(void) {
Linux::initialize_system_info();
Linux::initialize_os_info();
os::Linux::CPUPerfTicks pticks;
bool res = os::Linux::get_tick_information(&pticks, -1);
@ -5262,9 +5214,6 @@ jint os::init_2(void) {
}
}
// Initialize lock used to serialize thread creation (see os::create_thread)
Linux::set_createThread_lock(new Mutex(Mutex::leaf, "createThread_lock", false));
// at-exit methods are called in the reverse order of their registration.
// atexit functions are called on return from main or as a result of a
// call to exit(3C). There can be only 32 of these functions registered
@ -5465,11 +5414,6 @@ void os::set_native_thread_name(const char *name) {
}
}
bool os::distribute_processes(uint length, uint* distribution) {
// Not yet implemented.
return false;
}
bool os::bind_to_processor(uint processor_id) {
// Not yet implemented.
return false;