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This commit is contained in:
Jesper Wilhelmsson 2016-03-19 01:23:46 +01:00
commit 132e217524
213 changed files with 5739 additions and 4474 deletions
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44
hotspot/src/os/linux/vm/os_linux.cpp
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@ -594,15 +594,7 @@ void os::Linux::libpthread_init() {
// _expand_stack_to() assumes its frame size is less than page size, which
// should always be true if the function is not inlined.
#if __GNUC__ < 3 // gcc 2.x does not support noinline attribute
#define NOINLINE
#else
#define NOINLINE __attribute__ ((noinline))
#endif
static void _expand_stack_to(address bottom) NOINLINE;
static void _expand_stack_to(address bottom) {
static void NOINLINE _expand_stack_to(address bottom) {
address sp;
size_t size;
volatile char *p;
@ -769,7 +761,7 @@ bool os::create_thread(Thread* thread, ThreadType thr_type,
(uintx) tid, os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
} else {
log_warning(os, thread)("Failed to start thread - pthread_create failed (%s) for attributes: %s.",
strerror(ret), os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
os::errno_name(ret), os::Posix::describe_pthread_attr(buf, sizeof(buf), &attr));
}
pthread_attr_destroy(&attr);
@ -890,6 +882,13 @@ void os::free_thread(OSThread* osthread) {
assert(osthread != NULL, "osthread not set");
if (Thread::current()->osthread() == osthread) {
#ifdef ASSERT
sigset_t current;
sigemptyset(&current);
pthread_sigmask(SIG_SETMASK, NULL, &current);
assert(!sigismember(&current, SR_signum), "SR signal should not be blocked!");
#endif
// Restore caller's signal mask
sigset_t sigmask = osthread->caller_sigmask();
pthread_sigmask(SIG_SETMASK, &sigmask, NULL);
@ -1395,7 +1394,7 @@ void os::die() {
size_t os::lasterror(char *buf, size_t len) {
if (errno == 0) return 0;
const char *s = ::strerror(errno);
const char *s = os::strerror(errno);
size_t n = ::strlen(s);
if (n >= len) {
n = len - 1;
@ -2601,7 +2600,7 @@ static void warn_fail_commit_memory(char* addr, size_t size, bool exec,
int err) {
warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
", %d) failed; error='%s' (errno=%d)", p2i(addr), size, exec,
strerror(err), err);
os::strerror(err), err);
}
static void warn_fail_commit_memory(char* addr, size_t size,
@ -2609,7 +2608,7 @@ static void warn_fail_commit_memory(char* addr, size_t size,
int err) {
warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
", " SIZE_FORMAT ", %d) failed; error='%s' (errno=%d)", p2i(addr), size,
alignment_hint, exec, strerror(err), err);
alignment_hint, exec, os::strerror(err), err);
}
// NOTE: Linux kernel does not really reserve the pages for us.
@ -3912,7 +3911,8 @@ static void SR_handler(int sig, siginfo_t* siginfo, ucontext_t* context) {
// after sigsuspend.
int old_errno = errno;
Thread* thread = Thread::current();
Thread* thread = Thread::current_or_null_safe();
assert(thread != NULL, "Missing current thread in SR_handler");
OSThread* osthread = thread->osthread();
assert(thread->is_VM_thread() || thread->is_Java_thread(), "Must be VMThread or JavaThread");
@ -3924,7 +3924,7 @@ static void SR_handler(int sig, siginfo_t* siginfo, ucontext_t* context) {
os::SuspendResume::State state = osthread->sr.suspended();
if (state == os::SuspendResume::SR_SUSPENDED) {
sigset_t suspend_set; // signals for sigsuspend()
sigemptyset(&suspend_set);
// get current set of blocked signals and unblock resume signal
pthread_sigmask(SIG_BLOCK, NULL, &suspend_set);
sigdelset(&suspend_set, SR_signum);
@ -4178,6 +4178,7 @@ static bool call_chained_handler(struct sigaction *actp, int sig,
// try to honor the signal mask
sigset_t oset;
sigemptyset(&oset);
pthread_sigmask(SIG_SETMASK, &(actp->sa_mask), &oset);
// call into the chained handler
@ -4188,7 +4189,7 @@ static bool call_chained_handler(struct sigaction *actp, int sig,
}
// restore the signal mask
pthread_sigmask(SIG_SETMASK, &oset, 0);
pthread_sigmask(SIG_SETMASK, &oset, NULL);
}
// Tell jvm's signal handler the signal is taken care of.
return true;
@ -4615,7 +4616,7 @@ void os::init(void) {
Linux::set_page_size(sysconf(_SC_PAGESIZE));
if (Linux::page_size() == -1) {
fatal("os_linux.cpp: os::init: sysconf failed (%s)",
strerror(errno));
os::strerror(errno));
}
init_page_sizes((size_t) Linux::page_size());
@ -4633,7 +4634,7 @@ void os::init(void) {
int status;
pthread_condattr_t* _condattr = os::Linux::condAttr();
if ((status = pthread_condattr_init(_condattr)) != 0) {
fatal("pthread_condattr_init: %s", strerror(status));
fatal("pthread_condattr_init: %s", os::strerror(status));
}
// Only set the clock if CLOCK_MONOTONIC is available
if (os::supports_monotonic_clock()) {
@ -4642,7 +4643,7 @@ void os::init(void) {
warning("Unable to use monotonic clock with relative timed-waits" \
" - changes to the time-of-day clock may have adverse affects");
} else {
fatal("pthread_condattr_setclock: %s", strerror(status));
fatal("pthread_condattr_setclock: %s", os::strerror(status));
}
}
}
@ -4888,7 +4889,7 @@ int os::active_processor_count() {
log_trace(os)("active_processor_count: "
"CPU_ALLOC failed (%s) - using "
"online processor count: %d",
strerror(errno), online_cpus);
os::strerror(errno), online_cpus);
return online_cpus;
}
}
@ -4918,7 +4919,7 @@ int os::active_processor_count() {
else {
cpu_count = ::sysconf(_SC_NPROCESSORS_ONLN);
warning("sched_getaffinity failed (%s)- using online processor count (%d) "
"which may exceed available processors", strerror(errno), cpu_count);
"which may exceed available processors", os::strerror(errno), cpu_count);
}
if (cpus_p != &cpus) { // can only be true when CPU_ALLOC used
@ -5769,6 +5770,7 @@ void Parker::park(bool isAbsolute, jlong time) {
// Don't catch signals while blocked; let the running threads have the signals.
// (This allows a debugger to break into the running thread.)
sigset_t oldsigs;
sigemptyset(&oldsigs);
sigset_t* allowdebug_blocked = os::Linux::allowdebug_blocked_signals();
pthread_sigmask(SIG_BLOCK, allowdebug_blocked, &oldsigs);
#endif