239 address os::current_stack_pointer() {
240 return (address)_get_current_sp();
241 }
242
243 extern "C" intptr_t *_get_current_fp(); // in .il file
244
245 frame os::current_frame() {
246 intptr_t* fp = _get_current_fp(); // it's inlined so want current fp
247 frame myframe((intptr_t*)os::current_stack_pointer(),
248 (intptr_t*)fp,
249 CAST_FROM_FN_PTR(address, os::current_frame));
250 if (os::is_first_C_frame(&myframe)) {
251 // stack is not walkable
252 frame ret; // This will be a null useless frame
253 return ret;
254 } else {
255 return os::get_sender_for_C_frame(&myframe);
256 }
257 }
258
259 static int threadgetstate(thread_t tid, int *flags, lwpid_t *lwp, stack_t *ss, gregset_t rs, lwpstatus_t *lwpstatus) {
260 char lwpstatusfile[PROCFILE_LENGTH];
261 int lwpfd, err;
262
263 if (err = os::Solaris::thr_getstate(tid, flags, lwp, ss, rs))
264 return (err);
265 if (*flags == TRS_LWPID) {
266 sprintf(lwpstatusfile, "/proc/%d/lwp/%d/lwpstatus", getpid(),
267 *lwp);
268 if ((lwpfd = open(lwpstatusfile, O_RDONLY)) < 0) {
269 perror("thr_mutator_status: open lwpstatus");
270 return (EINVAL);
271 }
272 if (pread(lwpfd, lwpstatus, sizeof (lwpstatus_t), (off_t)0) !=
273 sizeof (lwpstatus_t)) {
274 perror("thr_mutator_status: read lwpstatus");
275 (void) close(lwpfd);
276 return (EINVAL);
277 }
278 (void) close(lwpfd);
279 }
280 return (0);
281 }
282
283 #ifndef AMD64
284
285 // Detecting SSE support by OS
286 // From solaris_i486.s
287 extern "C" bool sse_check();
288 extern "C" bool sse_unavailable();
289
290 enum { SSE_UNKNOWN, SSE_NOT_SUPPORTED, SSE_SUPPORTED};
291 static int sse_status = SSE_UNKNOWN;
292
293
294 static void check_for_sse_support() {
295 if (!VM_Version::supports_sse()) {
296 sse_status = SSE_NOT_SUPPORTED;
297 return;
298 }
299 // looking for _sse_hw in libc.so, if it does not exist or
300 // the value (int) is 0, OS has no support for SSE
301 int *sse_hwp;
302 void *h;
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239 address os::current_stack_pointer() {
240 return (address)_get_current_sp();
241 }
242
243 extern "C" intptr_t *_get_current_fp(); // in .il file
244
245 frame os::current_frame() {
246 intptr_t* fp = _get_current_fp(); // it's inlined so want current fp
247 frame myframe((intptr_t*)os::current_stack_pointer(),
248 (intptr_t*)fp,
249 CAST_FROM_FN_PTR(address, os::current_frame));
250 if (os::is_first_C_frame(&myframe)) {
251 // stack is not walkable
252 frame ret; // This will be a null useless frame
253 return ret;
254 } else {
255 return os::get_sender_for_C_frame(&myframe);
256 }
257 }
258
259 #ifndef AMD64
260
261 // Detecting SSE support by OS
262 // From solaris_i486.s
263 extern "C" bool sse_check();
264 extern "C" bool sse_unavailable();
265
266 enum { SSE_UNKNOWN, SSE_NOT_SUPPORTED, SSE_SUPPORTED};
267 static int sse_status = SSE_UNKNOWN;
268
269
270 static void check_for_sse_support() {
271 if (!VM_Version::supports_sse()) {
272 sse_status = SSE_NOT_SUPPORTED;
273 return;
274 }
275 // looking for _sse_hw in libc.so, if it does not exist or
276 // the value (int) is 0, OS has no support for SSE
277 int *sse_hwp;
278 void *h;
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