1.1 --- a/src/os/solaris/vm/os_solaris.cpp Mon Oct 13 22:11:39 2014 +0200
1.2 +++ b/src/os/solaris/vm/os_solaris.cpp Fri May 17 18:13:25 2019 +0100
1.3 @@ -160,6 +160,7 @@
1.4
1.5 address os::Solaris::_main_stack_base = NULL; // 4352906 workaround
1.6
1.7 +os::Solaris::pthread_setname_np_func_t os::Solaris::_pthread_setname_np = NULL;
1.8
1.9 // "default" initializers for missing libc APIs
1.10 extern "C" {
1.11 @@ -519,8 +520,15 @@
1.12 }
1.13
1.14 void os::set_native_thread_name(const char *name) {
1.15 - // Not yet implemented.
1.16 - return;
1.17 + if (Solaris::_pthread_setname_np != NULL) {
1.18 + // Only the first 31 bytes of 'name' are processed by pthread_setname_np
1.19 + // but we explicitly copy into a size-limited buffer to avoid any
1.20 + // possible overflow.
1.21 + char buf[32];
1.22 + snprintf(buf, sizeof(buf), "%s", name);
1.23 + buf[sizeof(buf) - 1] = '\0';
1.24 + Solaris::_pthread_setname_np(pthread_self(), buf);
1.25 + }
1.26 }
1.27
1.28 bool os::distribute_processes(uint length, uint* distribution) {
1.29 @@ -4921,6 +4929,13 @@
1.30 // the minimum of what the OS supports (thr_min_stack()), and
1.31 // enough to allow the thread to get to user bytecode execution.
1.32 Solaris::min_stack_allowed = MAX2(thr_min_stack(), Solaris::min_stack_allowed);
1.33 +
1.34 + // retrieve entry point for pthread_setname_np
1.35 + void * handle = dlopen("libc.so.1", RTLD_LAZY);
1.36 + if (handle != NULL) {
1.37 + Solaris::_pthread_setname_np =
1.38 + (Solaris::pthread_setname_np_func_t)dlsym(handle, "pthread_setname_np");
1.39 + }
1.40 // If the pagesize of the VM is greater than 8K determine the appropriate
1.41 // number of initial guard pages. The user can change this with the
1.42 // command line arguments, if needed.
