author | sla |
Wed, 15 Dec 2010 07:11:31 -0800 | |
changeset 7452 | b3fa838286de |
parent 7410 | f5b282e7a7a6 |
child 7691 | ec07a04e74e7 |
permissions | -rw-r--r-- |
7410 | 1 |
/* |
2 |
* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
|
3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
|
4 |
* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
|
8 |
* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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10 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
|
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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24 |
||
25 |
||
26 |
#include "java.h" |
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27 |
#include <dirent.h> |
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28 |
#include <dlfcn.h> |
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29 |
#include <fcntl.h> |
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30 |
#include <inttypes.h> |
|
7452
b3fa838286de
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
7410
diff
changeset
|
31 |
#include <stdint.h> |
7410 | 32 |
#include <stdio.h> |
33 |
#include <string.h> |
|
34 |
#include <stdlib.h> |
|
35 |
#include <limits.h> |
|
36 |
#include <sys/stat.h> |
|
37 |
#include <unistd.h> |
|
38 |
#include <sys/types.h> |
|
39 |
||
40 |
#ifndef GAMMA |
|
41 |
#include "manifest_info.h" |
|
42 |
#include "version_comp.h" |
|
43 |
#endif |
|
44 |
||
45 |
#ifdef __linux__ |
|
46 |
#include <pthread.h> |
|
47 |
#else |
|
48 |
#include <thread.h> |
|
49 |
#endif |
|
50 |
||
51 |
#define JVM_DLL "libjvm.so" |
|
52 |
#define JAVA_DLL "libjava.so" |
|
53 |
||
54 |
#ifndef GAMMA /* launcher.make defines ARCH */ |
|
55 |
/* |
|
56 |
* If a processor / os combination has the ability to run binaries of |
|
57 |
* two data models and cohabitation of jre/jdk bits with both data |
|
58 |
* models is supported, then DUAL_MODE is defined. When DUAL_MODE is |
|
59 |
* defined, the architecture names for the narrow and wide version of |
|
60 |
* the architecture are defined in LIBARCH64NAME and LIBARCH32NAME. Currently |
|
61 |
* only Solaris on sparc/sparcv9 and i586/amd64 is DUAL_MODE; linux |
|
62 |
* i586/amd64 could be defined as DUAL_MODE but that is not the |
|
63 |
* current policy. |
|
64 |
*/ |
|
65 |
||
66 |
#ifndef LIBARCHNAME |
|
67 |
# error "The macro LIBARCHNAME was not defined on the compile line" |
|
68 |
#endif |
|
69 |
||
70 |
#ifdef __sun |
|
71 |
# define DUAL_MODE |
|
72 |
# ifndef LIBARCH32NAME |
|
73 |
# error "The macro LIBARCH32NAME was not defined on the compile line" |
|
74 |
# endif |
|
75 |
# ifndef LIBARCH64NAME |
|
76 |
# error "The macro LIBARCH64NAME was not defined on the compile line" |
|
77 |
# endif |
|
78 |
# include <sys/systeminfo.h> |
|
79 |
# include <sys/elf.h> |
|
80 |
# include <stdio.h> |
|
81 |
#endif |
|
82 |
||
83 |
#endif /* ifndef GAMMA */ |
|
84 |
||
85 |
/* pointer to environment */ |
|
86 |
extern char **environ; |
|
87 |
||
88 |
#ifndef GAMMA |
|
89 |
/* |
|
90 |
* A collection of useful strings. One should think of these as #define |
|
91 |
* entries, but actual strings can be more efficient (with many compilers). |
|
92 |
*/ |
|
93 |
#ifdef __linux__ |
|
94 |
static const char *system_dir = "/usr/java"; |
|
95 |
static const char *user_dir = "/java"; |
|
96 |
#else /* Solaris */ |
|
97 |
static const char *system_dir = "/usr/jdk"; |
|
98 |
static const char *user_dir = "/jdk"; |
|
99 |
#endif |
|
100 |
||
101 |
#endif /* ifndef GAMMA */ |
|
102 |
||
103 |
/* |
|
104 |
* Flowchart of launcher execs and options processing on unix |
|
105 |
* |
|
106 |
* The selection of the proper vm shared library to open depends on |
|
107 |
* several classes of command line options, including vm "flavor" |
|
108 |
* options (-client, -server) and the data model options, -d32 and |
|
109 |
* -d64, as well as a version specification which may have come from |
|
110 |
* the command line or from the manifest of an executable jar file. |
|
111 |
* The vm selection options are not passed to the running |
|
112 |
* virtual machine; they must be screened out by the launcher. |
|
113 |
* |
|
114 |
* The version specification (if any) is processed first by the |
|
115 |
* platform independent routine SelectVersion. This may result in |
|
116 |
* the exec of the specified launcher version. |
|
117 |
* |
|
118 |
* Typically, the launcher execs at least once to ensure a suitable |
|
119 |
* LD_LIBRARY_PATH is in effect for the process. The first exec |
|
120 |
* screens out all the data model options; leaving the choice of data |
|
121 |
* model implicit in the binary selected to run. However, in case no |
|
122 |
* exec is done, the data model options are screened out before the vm |
|
123 |
* is invoked. |
|
124 |
* |
|
125 |
* incoming argv ------------------------------ |
|
126 |
* | | |
|
127 |
* \|/ | |
|
128 |
* CheckJVMType | |
|
129 |
* (removes -client, -server, etc.) | |
|
130 |
* \|/ |
|
131 |
* CreateExecutionEnvironment |
|
132 |
* (removes -d32 and -d64, |
|
133 |
* determines desired data model, |
|
134 |
* sets up LD_LIBRARY_PATH, |
|
135 |
* and exec's) |
|
136 |
* | |
|
137 |
* -------------------------------------------- |
|
138 |
* | |
|
139 |
* \|/ |
|
140 |
* exec child 1 incoming argv ----------------- |
|
141 |
* | | |
|
142 |
* \|/ | |
|
143 |
* CheckJVMType | |
|
144 |
* (removes -client, -server, etc.) | |
|
145 |
* | \|/ |
|
146 |
* | CreateExecutionEnvironment |
|
147 |
* | (verifies desired data model |
|
148 |
* | is running and acceptable |
|
149 |
* | LD_LIBRARY_PATH; |
|
150 |
* | no-op in child) |
|
151 |
* | |
|
152 |
* \|/ |
|
153 |
* TranslateDashJArgs... |
|
154 |
* (Prepare to pass args to vm) |
|
155 |
* | |
|
156 |
* | |
|
157 |
* | |
|
158 |
* \|/ |
|
159 |
* ParseArguments |
|
160 |
* (ignores -d32 and -d64, |
|
161 |
* processes version options, |
|
162 |
* creates argument list for vm, |
|
163 |
* etc.) |
|
164 |
* |
|
165 |
*/ |
|
166 |
||
167 |
static char *SetExecname(char **argv); |
|
168 |
static char * GetExecname(); |
|
169 |
static jboolean GetJVMPath(const char *jrepath, const char *jvmtype, |
|
170 |
char *jvmpath, jint jvmpathsize, char * arch); |
|
171 |
static jboolean GetJREPath(char *path, jint pathsize, char * arch, jboolean speculative); |
|
172 |
||
173 |
#ifndef GAMMA |
|
174 |
const char * |
|
175 |
GetArch() |
|
176 |
{ |
|
177 |
return LIBARCHNAME; |
|
178 |
} |
|
179 |
#endif /* ifndef GAMMA */ |
|
180 |
||
181 |
void |
|
182 |
CreateExecutionEnvironment(int *_argcp, |
|
183 |
char ***_argvp, |
|
184 |
char jrepath[], |
|
185 |
jint so_jrepath, |
|
186 |
char jvmpath[], |
|
187 |
jint so_jvmpath, |
|
188 |
char **original_argv) { |
|
189 |
/* |
|
190 |
* First, determine if we are running the desired data model. If we |
|
191 |
* are running the desired data model, all the error messages |
|
192 |
* associated with calling GetJREPath, ReadKnownVMs, etc. should be |
|
193 |
* output. However, if we are not running the desired data model, |
|
194 |
* some of the errors should be suppressed since it is more |
|
195 |
* informative to issue an error message based on whether or not the |
|
196 |
* os/processor combination has dual mode capabilities. |
|
197 |
*/ |
|
198 |
||
199 |
char *execname = NULL; |
|
200 |
int original_argc = *_argcp; |
|
201 |
jboolean jvmpathExists; |
|
202 |
||
203 |
/* Compute the name of the executable */ |
|
204 |
execname = SetExecname(*_argvp); |
|
205 |
||
206 |
#ifndef GAMMA |
|
207 |
/* Set the LD_LIBRARY_PATH environment variable, check data model |
|
208 |
flags, and exec process, if needed */ |
|
209 |
{ |
|
210 |
char *arch = (char *)GetArch(); /* like sparc or sparcv9 */ |
|
211 |
char * jvmtype = NULL; |
|
212 |
int argc = *_argcp; |
|
213 |
char **argv = original_argv; |
|
214 |
||
215 |
char *runpath = NULL; /* existing effective LD_LIBRARY_PATH |
|
216 |
setting */ |
|
217 |
||
218 |
int running = /* What data model is being ILP32 => |
|
219 |
32 bit vm; LP64 => 64 bit vm */ |
|
220 |
#ifdef _LP64 |
|
221 |
64; |
|
222 |
#else |
|
223 |
32; |
|
224 |
#endif |
|
225 |
||
226 |
int wanted = running; /* What data mode is being |
|
227 |
asked for? Current model is |
|
228 |
fine unless another model |
|
229 |
is asked for */ |
|
230 |
||
231 |
char* new_runpath = NULL; /* desired new LD_LIBRARY_PATH string */ |
|
232 |
char* newpath = NULL; /* path on new LD_LIBRARY_PATH */ |
|
233 |
char* lastslash = NULL; |
|
234 |
||
235 |
char** newenvp = NULL; /* current environment */ |
|
236 |
||
237 |
char** newargv = NULL; |
|
238 |
int newargc = 0; |
|
239 |
#ifdef __sun |
|
240 |
char* dmpath = NULL; /* data model specific LD_LIBRARY_PATH, |
|
241 |
Solaris only */ |
|
242 |
#endif |
|
243 |
||
244 |
/* |
|
245 |
* Starting in 1.5, all unix platforms accept the -d32 and -d64 |
|
246 |
* options. On platforms where only one data-model is supported |
|
247 |
* (e.g. ia-64 Linux), using the flag for the other data model is |
|
248 |
* an error and will terminate the program. |
|
249 |
*/ |
|
250 |
||
251 |
{ /* open new scope to declare local variables */ |
|
252 |
int i; |
|
253 |
||
254 |
newargv = (char **)JLI_MemAlloc((argc+1) * sizeof(*newargv)); |
|
255 |
newargv[newargc++] = argv[0]; |
|
256 |
||
257 |
/* scan for data model arguments and remove from argument list; |
|
258 |
last occurrence determines desired data model */ |
|
259 |
for (i=1; i < argc; i++) { |
|
260 |
||
261 |
if (strcmp(argv[i], "-J-d64") == 0 || strcmp(argv[i], "-d64") == 0) { |
|
262 |
wanted = 64; |
|
263 |
continue; |
|
264 |
} |
|
265 |
if (strcmp(argv[i], "-J-d32") == 0 || strcmp(argv[i], "-d32") == 0) { |
|
266 |
wanted = 32; |
|
267 |
continue; |
|
268 |
} |
|
269 |
newargv[newargc++] = argv[i]; |
|
270 |
||
271 |
#ifdef JAVA_ARGS |
|
272 |
if (argv[i][0] != '-') |
|
273 |
continue; |
|
274 |
#else |
|
275 |
if (strcmp(argv[i], "-classpath") == 0 || strcmp(argv[i], "-cp") == 0) { |
|
276 |
i++; |
|
277 |
if (i >= argc) break; |
|
278 |
newargv[newargc++] = argv[i]; |
|
279 |
continue; |
|
280 |
} |
|
281 |
if (argv[i][0] != '-') { i++; break; } |
|
282 |
#endif |
|
283 |
} |
|
284 |
||
285 |
/* copy rest of args [i .. argc) */ |
|
286 |
while (i < argc) { |
|
287 |
newargv[newargc++] = argv[i++]; |
|
288 |
} |
|
289 |
newargv[newargc] = NULL; |
|
290 |
||
291 |
/* |
|
292 |
* newargv has all proper arguments here |
|
293 |
*/ |
|
294 |
||
295 |
argc = newargc; |
|
296 |
argv = newargv; |
|
297 |
} |
|
298 |
||
299 |
/* If the data model is not changing, it is an error if the |
|
300 |
jvmpath does not exist */ |
|
301 |
if (wanted == running) { |
|
302 |
/* Find out where the JRE is that we will be using. */ |
|
303 |
if (!GetJREPath(jrepath, so_jrepath, arch, JNI_FALSE) ) { |
|
304 |
fprintf(stderr, "Error: could not find Java 2 Runtime Environment.\n"); |
|
305 |
exit(2); |
|
306 |
} |
|
307 |
||
308 |
/* Find the specified JVM type */ |
|
309 |
if (ReadKnownVMs(jrepath, arch, JNI_FALSE) < 1) { |
|
310 |
fprintf(stderr, "Error: no known VMs. (check for corrupt jvm.cfg file)\n"); |
|
311 |
exit(1); |
|
312 |
} |
|
313 |
||
314 |
jvmpath[0] = '\0'; |
|
315 |
jvmtype = CheckJvmType(_argcp, _argvp, JNI_FALSE); |
|
316 |
||
317 |
if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath, arch )) { |
|
318 |
fprintf(stderr, "Error: no `%s' JVM at `%s'.\n", jvmtype, jvmpath); |
|
319 |
exit(4); |
|
320 |
} |
|
321 |
} else { /* do the same speculatively or exit */ |
|
322 |
#ifdef DUAL_MODE |
|
323 |
if (running != wanted) { |
|
324 |
/* Find out where the JRE is that we will be using. */ |
|
325 |
if (!GetJREPath(jrepath, so_jrepath, ((wanted==64)?LIBARCH64NAME:LIBARCH32NAME), JNI_TRUE)) { |
|
326 |
goto EndDataModelSpeculate; |
|
327 |
} |
|
328 |
||
329 |
/* |
|
330 |
* Read in jvm.cfg for target data model and process vm |
|
331 |
* selection options. |
|
332 |
*/ |
|
333 |
if (ReadKnownVMs(jrepath, ((wanted==64)?LIBARCH64NAME:LIBARCH32NAME), JNI_TRUE) < 1) { |
|
334 |
goto EndDataModelSpeculate; |
|
335 |
} |
|
336 |
jvmpath[0] = '\0'; |
|
337 |
jvmtype = CheckJvmType(_argcp, _argvp, JNI_TRUE); |
|
338 |
/* exec child can do error checking on the existence of the path */ |
|
339 |
jvmpathExists = GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath, |
|
340 |
((wanted==64)?LIBARCH64NAME:LIBARCH32NAME)); |
|
341 |
||
342 |
} |
|
343 |
EndDataModelSpeculate: /* give up and let other code report error message */ |
|
344 |
; |
|
345 |
#else |
|
346 |
fprintf(stderr, "Running a %d-bit JVM is not supported on this platform.\n", wanted); |
|
347 |
exit(1); |
|
348 |
#endif |
|
349 |
} |
|
350 |
||
351 |
/* |
|
352 |
* We will set the LD_LIBRARY_PATH as follows: |
|
353 |
* |
|
354 |
* o $JVMPATH (directory portion only) |
|
355 |
* o $JRE/lib/$LIBARCHNAME |
|
356 |
* o $JRE/../lib/$LIBARCHNAME |
|
357 |
* |
|
358 |
* followed by the user's previous effective LD_LIBRARY_PATH, if |
|
359 |
* any. |
|
360 |
*/ |
|
361 |
||
362 |
#ifdef __sun |
|
363 |
/* |
|
364 |
* Starting in Solaris 7, ld.so.1 supports three LD_LIBRARY_PATH |
|
365 |
* variables: |
|
366 |
* |
|
367 |
* 1. LD_LIBRARY_PATH -- used for 32 and 64 bit searches if |
|
368 |
* data-model specific variables are not set. |
|
369 |
* |
|
370 |
* 2. LD_LIBRARY_PATH_64 -- overrides and replaces LD_LIBRARY_PATH |
|
371 |
* for 64-bit binaries. |
|
372 |
* |
|
373 |
* 3. LD_LIBRARY_PATH_32 -- overrides and replaces LD_LIBRARY_PATH |
|
374 |
* for 32-bit binaries. |
|
375 |
* |
|
376 |
* The vm uses LD_LIBRARY_PATH to set the java.library.path system |
|
377 |
* property. To shield the vm from the complication of multiple |
|
378 |
* LD_LIBRARY_PATH variables, if the appropriate data model |
|
379 |
* specific variable is set, we will act as if LD_LIBRARY_PATH had |
|
380 |
* the value of the data model specific variant and the data model |
|
381 |
* specific variant will be unset. Note that the variable for the |
|
382 |
* *wanted* data model must be used (if it is set), not simply the |
|
383 |
* current running data model. |
|
384 |
*/ |
|
385 |
||
386 |
switch(wanted) { |
|
387 |
case 0: |
|
388 |
if(running == 32) { |
|
389 |
dmpath = getenv("LD_LIBRARY_PATH_32"); |
|
390 |
wanted = 32; |
|
391 |
} |
|
392 |
else { |
|
393 |
dmpath = getenv("LD_LIBRARY_PATH_64"); |
|
394 |
wanted = 64; |
|
395 |
} |
|
396 |
break; |
|
397 |
||
398 |
case 32: |
|
399 |
dmpath = getenv("LD_LIBRARY_PATH_32"); |
|
400 |
break; |
|
401 |
||
402 |
case 64: |
|
403 |
dmpath = getenv("LD_LIBRARY_PATH_64"); |
|
404 |
break; |
|
405 |
||
406 |
default: |
|
407 |
fprintf(stderr, "Improper value at line %d.", __LINE__); |
|
408 |
exit(1); /* unknown value in wanted */ |
|
409 |
break; |
|
410 |
} |
|
411 |
||
412 |
/* |
|
413 |
* If dmpath is NULL, the relevant data model specific variable is |
|
414 |
* not set and normal LD_LIBRARY_PATH should be used. |
|
415 |
*/ |
|
416 |
if( dmpath == NULL) { |
|
417 |
runpath = getenv("LD_LIBRARY_PATH"); |
|
418 |
} |
|
419 |
else { |
|
420 |
runpath = dmpath; |
|
421 |
} |
|
422 |
#else |
|
423 |
/* |
|
424 |
* If not on Solaris, assume only a single LD_LIBRARY_PATH |
|
425 |
* variable. |
|
426 |
*/ |
|
427 |
runpath = getenv("LD_LIBRARY_PATH"); |
|
428 |
#endif /* __sun */ |
|
429 |
||
430 |
#ifdef __linux |
|
431 |
/* |
|
432 |
* On linux, if a binary is running as sgid or suid, glibc sets |
|
433 |
* LD_LIBRARY_PATH to the empty string for security purposes. (In |
|
434 |
* contrast, on Solaris the LD_LIBRARY_PATH variable for a |
|
435 |
* privileged binary does not lose its settings; but the dynamic |
|
436 |
* linker does apply more scrutiny to the path.) The launcher uses |
|
437 |
* the value of LD_LIBRARY_PATH to prevent an exec loop. |
|
438 |
* Therefore, if we are running sgid or suid, this function's |
|
439 |
* setting of LD_LIBRARY_PATH will be ineffective and we should |
|
440 |
* return from the function now. Getting the right libraries to |
|
441 |
* be found must be handled through other mechanisms. |
|
442 |
*/ |
|
443 |
if((getgid() != getegid()) || (getuid() != geteuid()) ) { |
|
444 |
return; |
|
445 |
} |
|
446 |
#endif |
|
447 |
||
448 |
/* runpath contains current effective LD_LIBRARY_PATH setting */ |
|
449 |
||
450 |
jvmpath = JLI_StringDup(jvmpath); |
|
451 |
new_runpath = JLI_MemAlloc( ((runpath!=NULL)?strlen(runpath):0) + |
|
452 |
2*strlen(jrepath) + 2*strlen(arch) + |
|
453 |
strlen(jvmpath) + 52); |
|
454 |
newpath = new_runpath + strlen("LD_LIBRARY_PATH="); |
|
455 |
||
456 |
||
457 |
/* |
|
458 |
* Create desired LD_LIBRARY_PATH value for target data model. |
|
459 |
*/ |
|
460 |
{ |
|
461 |
/* remove the name of the .so from the JVM path */ |
|
462 |
lastslash = strrchr(jvmpath, '/'); |
|
463 |
if (lastslash) |
|
464 |
*lastslash = '\0'; |
|
465 |
||
466 |
||
467 |
/* jvmpath, ((running != wanted)?((wanted==64)?"/"LIBARCH64NAME:"/.."):""), */ |
|
468 |
||
469 |
sprintf(new_runpath, "LD_LIBRARY_PATH=" |
|
470 |
"%s:" |
|
471 |
"%s/lib/%s:" |
|
472 |
"%s/../lib/%s", |
|
473 |
jvmpath, |
|
474 |
#ifdef DUAL_MODE |
|
475 |
jrepath, ((wanted==64)?LIBARCH64NAME:LIBARCH32NAME), |
|
476 |
jrepath, ((wanted==64)?LIBARCH64NAME:LIBARCH32NAME) |
|
477 |
#else |
|
478 |
jrepath, arch, |
|
479 |
jrepath, arch |
|
480 |
#endif |
|
481 |
); |
|
482 |
||
483 |
||
484 |
/* |
|
485 |
* Check to make sure that the prefix of the current path is the |
|
486 |
* desired environment variable setting. |
|
487 |
*/ |
|
488 |
if (runpath != NULL && |
|
489 |
strncmp(newpath, runpath, strlen(newpath))==0 && |
|
490 |
(runpath[strlen(newpath)] == 0 || runpath[strlen(newpath)] == ':') && |
|
491 |
(running == wanted) /* data model does not have to be changed */ |
|
492 |
#ifdef __sun |
|
493 |
&& (dmpath == NULL) /* data model specific variables not set */ |
|
494 |
#endif |
|
495 |
) { |
|
496 |
||
497 |
return; |
|
498 |
||
499 |
} |
|
500 |
} |
|
501 |
||
502 |
/* |
|
503 |
* Place the desired environment setting onto the prefix of |
|
504 |
* LD_LIBRARY_PATH. Note that this prevents any possible infinite |
|
505 |
* loop of execv() because we test for the prefix, above. |
|
506 |
*/ |
|
507 |
if (runpath != 0) { |
|
508 |
strcat(new_runpath, ":"); |
|
509 |
strcat(new_runpath, runpath); |
|
510 |
} |
|
511 |
||
512 |
if( putenv(new_runpath) != 0) { |
|
513 |
exit(1); /* problem allocating memory; LD_LIBRARY_PATH not set |
|
514 |
properly */ |
|
515 |
} |
|
516 |
||
517 |
/* |
|
518 |
* Unix systems document that they look at LD_LIBRARY_PATH only |
|
519 |
* once at startup, so we have to re-exec the current executable |
|
520 |
* to get the changed environment variable to have an effect. |
|
521 |
*/ |
|
522 |
||
523 |
#ifdef __sun |
|
524 |
/* |
|
525 |
* If dmpath is not NULL, remove the data model specific string |
|
526 |
* in the environment for the exec'ed child. |
|
527 |
*/ |
|
528 |
||
529 |
if( dmpath != NULL) |
|
530 |
(void)UnsetEnv((wanted==32)?"LD_LIBRARY_PATH_32":"LD_LIBRARY_PATH_64"); |
|
531 |
#endif |
|
532 |
||
533 |
newenvp = environ; |
|
534 |
||
535 |
{ |
|
536 |
char *newexec = execname; |
|
537 |
#ifdef DUAL_MODE |
|
538 |
/* |
|
539 |
* If the data model is being changed, the path to the |
|
540 |
* executable must be updated accordingly; the executable name |
|
541 |
* and directory the executable resides in are separate. In the |
|
542 |
* case of 32 => 64, the new bits are assumed to reside in, e.g. |
|
543 |
* "olddir/LIBARCH64NAME/execname"; in the case of 64 => 32, |
|
544 |
* the bits are assumed to be in "olddir/../execname". For example, |
|
545 |
* |
|
546 |
* olddir/sparcv9/execname |
|
547 |
* olddir/amd64/execname |
|
548 |
* |
|
549 |
* for Solaris SPARC and Linux amd64, respectively. |
|
550 |
*/ |
|
551 |
||
552 |
if (running != wanted) { |
|
553 |
char *oldexec = strcpy(JLI_MemAlloc(strlen(execname) + 1), execname); |
|
554 |
char *olddir = oldexec; |
|
555 |
char *oldbase = strrchr(oldexec, '/'); |
|
556 |
||
557 |
||
558 |
newexec = JLI_MemAlloc(strlen(execname) + 20); |
|
559 |
*oldbase++ = 0; |
|
560 |
sprintf(newexec, "%s/%s/%s", olddir, |
|
561 |
((wanted==64) ? LIBARCH64NAME : ".."), oldbase); |
|
562 |
argv[0] = newexec; |
|
563 |
} |
|
564 |
#endif |
|
565 |
||
566 |
(void)fflush(stdout); |
|
567 |
(void)fflush(stderr); |
|
568 |
execve(newexec, argv, newenvp); |
|
569 |
perror("execve()"); |
|
570 |
||
571 |
fprintf(stderr, "Error trying to exec %s.\n", newexec); |
|
572 |
fprintf(stderr, "Check if file exists and permissions are set correctly.\n"); |
|
573 |
||
574 |
#ifdef DUAL_MODE |
|
575 |
if (running != wanted) { |
|
576 |
fprintf(stderr, "Failed to start a %d-bit JVM process from a %d-bit JVM.\n", |
|
577 |
wanted, running); |
|
578 |
# ifdef __sun |
|
579 |
||
580 |
# ifdef __sparc |
|
581 |
fprintf(stderr, "Verify all necessary J2SE components have been installed.\n" ); |
|
582 |
fprintf(stderr, |
|
583 |
"(Solaris SPARC 64-bit components must be installed after 32-bit components.)\n" ); |
|
584 |
# else |
|
585 |
fprintf(stderr, "Either 64-bit processes are not supported by this platform\n"); |
|
586 |
fprintf(stderr, "or the 64-bit components have not been installed.\n"); |
|
587 |
# endif |
|
588 |
} |
|
589 |
# endif |
|
590 |
#endif |
|
591 |
||
592 |
} |
|
593 |
||
594 |
exit(1); |
|
595 |
} |
|
596 |
||
597 |
#else /* ifndef GAMMA */ |
|
598 |
||
599 |
/* |
|
600 |
* gamma launcher is simpler in that it doesn't handle VM flavors, data |
|
601 |
* model, LD_LIBRARY_PATH, etc. Assuming everything is set-up correctly |
|
602 |
* all we need to do here is to return correct path names. See also |
|
603 |
* GetJVMPath() and GetApplicationHome(). |
|
604 |
*/ |
|
605 |
||
606 |
{ char *arch = (char *) ARCH; /* like sparc or sparcv9 */ |
|
607 |
char *p; |
|
608 |
||
609 |
if (!GetJREPath(jrepath, so_jrepath, arch, JNI_FALSE) ) { |
|
610 |
fprintf(stderr, "Error: could not find Java 2 Runtime Environment.\n"); |
|
611 |
exit(2); |
|
612 |
} |
|
613 |
||
614 |
if (!GetJVMPath(jrepath, NULL, jvmpath, so_jvmpath, arch )) { |
|
615 |
fprintf(stderr, "Error: no JVM at `%s'.\n", jvmpath); |
|
616 |
exit(4); |
|
617 |
} |
|
618 |
} |
|
619 |
||
620 |
#endif /* ifndef GAMMA */ |
|
621 |
} |
|
622 |
||
623 |
||
624 |
/* |
|
625 |
* On Solaris VM choosing is done by the launcher (java.c). |
|
626 |
*/ |
|
627 |
static jboolean |
|
628 |
GetJVMPath(const char *jrepath, const char *jvmtype, |
|
629 |
char *jvmpath, jint jvmpathsize, char * arch) |
|
630 |
{ |
|
631 |
struct stat s; |
|
632 |
||
633 |
#ifndef GAMMA |
|
634 |
if (strchr(jvmtype, '/')) { |
|
635 |
sprintf(jvmpath, "%s/" JVM_DLL, jvmtype); |
|
636 |
} else { |
|
637 |
sprintf(jvmpath, "%s/lib/%s/%s/" JVM_DLL, jrepath, arch, jvmtype); |
|
638 |
} |
|
639 |
#else |
|
640 |
/* |
|
641 |
* For gamma launcher, JVM is either built-in or in the same directory. |
|
642 |
* Either way we return "<exe_path>/libjvm.so" where <exe_path> is the |
|
643 |
* directory where gamma launcher is located. |
|
644 |
*/ |
|
645 |
||
646 |
char *p; |
|
647 |
||
648 |
snprintf(jvmpath, jvmpathsize, "%s", GetExecname()); |
|
649 |
p = strrchr(jvmpath, '/'); |
|
650 |
if (p) { |
|
651 |
/* replace executable name with libjvm.so */ |
|
652 |
snprintf(p + 1, jvmpathsize - (p + 1 - jvmpath), "%s", JVM_DLL); |
|
653 |
} else { |
|
654 |
/* this case shouldn't happen */ |
|
655 |
snprintf(jvmpath, jvmpathsize, "%s", JVM_DLL); |
|
656 |
} |
|
657 |
#endif /* ifndef GAMMA */ |
|
658 |
||
659 |
if (_launcher_debug) |
|
660 |
printf("Does `%s' exist ... ", jvmpath); |
|
661 |
||
662 |
if (stat(jvmpath, &s) == 0) { |
|
663 |
if (_launcher_debug) |
|
664 |
printf("yes.\n"); |
|
665 |
return JNI_TRUE; |
|
666 |
} else { |
|
667 |
if (_launcher_debug) |
|
668 |
printf("no.\n"); |
|
669 |
return JNI_FALSE; |
|
670 |
} |
|
671 |
} |
|
672 |
||
673 |
/* |
|
674 |
* Find path to JRE based on .exe's location or registry settings. |
|
675 |
*/ |
|
676 |
static jboolean |
|
677 |
GetJREPath(char *path, jint pathsize, char * arch, jboolean speculative) |
|
678 |
{ |
|
679 |
char libjava[MAXPATHLEN]; |
|
680 |
||
681 |
if (GetApplicationHome(path, pathsize)) { |
|
682 |
/* Is JRE co-located with the application? */ |
|
683 |
sprintf(libjava, "%s/lib/%s/" JAVA_DLL, path, arch); |
|
684 |
if (access(libjava, F_OK) == 0) { |
|
685 |
goto found; |
|
686 |
} |
|
687 |
||
688 |
/* Does the app ship a private JRE in <apphome>/jre directory? */ |
|
689 |
sprintf(libjava, "%s/jre/lib/%s/" JAVA_DLL, path, arch); |
|
690 |
if (access(libjava, F_OK) == 0) { |
|
691 |
strcat(path, "/jre"); |
|
692 |
goto found; |
|
693 |
} |
|
694 |
} |
|
695 |
||
696 |
if (!speculative) |
|
697 |
fprintf(stderr, "Error: could not find " JAVA_DLL "\n"); |
|
698 |
return JNI_FALSE; |
|
699 |
||
700 |
found: |
|
701 |
if (_launcher_debug) |
|
702 |
printf("JRE path is %s\n", path); |
|
703 |
return JNI_TRUE; |
|
704 |
} |
|
705 |
||
706 |
jboolean |
|
707 |
LoadJavaVM(const char *jvmpath, InvocationFunctions *ifn) |
|
708 |
{ |
|
709 |
#ifdef GAMMA |
|
710 |
/* JVM is directly linked with gamma launcher; no dlopen() */ |
|
711 |
ifn->CreateJavaVM = JNI_CreateJavaVM; |
|
712 |
ifn->GetDefaultJavaVMInitArgs = JNI_GetDefaultJavaVMInitArgs; |
|
713 |
return JNI_TRUE; |
|
714 |
#else |
|
715 |
Dl_info dlinfo; |
|
716 |
void *libjvm; |
|
717 |
||
718 |
if (_launcher_debug) { |
|
719 |
printf("JVM path is %s\n", jvmpath); |
|
720 |
} |
|
721 |
||
722 |
libjvm = dlopen(jvmpath, RTLD_NOW + RTLD_GLOBAL); |
|
723 |
if (libjvm == NULL) { |
|
724 |
#if defined(__sparc) && !defined(_LP64) /* i.e. 32-bit sparc */ |
|
725 |
FILE * fp; |
|
726 |
Elf32_Ehdr elf_head; |
|
727 |
int count; |
|
728 |
int location; |
|
729 |
||
730 |
fp = fopen(jvmpath, "r"); |
|
731 |
if(fp == NULL) |
|
732 |
goto error; |
|
733 |
||
734 |
/* read in elf header */ |
|
735 |
count = fread((void*)(&elf_head), sizeof(Elf32_Ehdr), 1, fp); |
|
736 |
fclose(fp); |
|
737 |
if(count < 1) |
|
738 |
goto error; |
|
739 |
||
740 |
/* |
|
741 |
* Check for running a server vm (compiled with -xarch=v8plus) |
|
742 |
* on a stock v8 processor. In this case, the machine type in |
|
743 |
* the elf header would not be included the architecture list |
|
744 |
* provided by the isalist command, which is turn is gotten from |
|
745 |
* sysinfo. This case cannot occur on 64-bit hardware and thus |
|
746 |
* does not have to be checked for in binaries with an LP64 data |
|
747 |
* model. |
|
748 |
*/ |
|
749 |
if(elf_head.e_machine == EM_SPARC32PLUS) { |
|
750 |
char buf[257]; /* recommended buffer size from sysinfo man |
|
751 |
page */ |
|
752 |
long length; |
|
753 |
char* location; |
|
754 |
||
755 |
length = sysinfo(SI_ISALIST, buf, 257); |
|
756 |
if(length > 0) { |
|
757 |
location = strstr(buf, "sparcv8plus "); |
|
758 |
if(location == NULL) { |
|
759 |
fprintf(stderr, "SPARC V8 processor detected; Server compiler requires V9 or better.\n"); |
|
760 |
fprintf(stderr, "Use Client compiler on V8 processors.\n"); |
|
761 |
fprintf(stderr, "Could not create the Java virtual machine.\n"); |
|
762 |
return JNI_FALSE; |
|
763 |
} |
|
764 |
} |
|
765 |
} |
|
766 |
#endif |
|
767 |
fprintf(stderr, "dl failure on line %d", __LINE__); |
|
768 |
goto error; |
|
769 |
} |
|
770 |
||
771 |
ifn->CreateJavaVM = (CreateJavaVM_t) |
|
772 |
dlsym(libjvm, "JNI_CreateJavaVM"); |
|
773 |
if (ifn->CreateJavaVM == NULL) |
|
774 |
goto error; |
|
775 |
||
776 |
ifn->GetDefaultJavaVMInitArgs = (GetDefaultJavaVMInitArgs_t) |
|
777 |
dlsym(libjvm, "JNI_GetDefaultJavaVMInitArgs"); |
|
778 |
if (ifn->GetDefaultJavaVMInitArgs == NULL) |
|
779 |
goto error; |
|
780 |
||
781 |
return JNI_TRUE; |
|
782 |
||
783 |
error: |
|
784 |
fprintf(stderr, "Error: failed %s, because %s\n", jvmpath, dlerror()); |
|
785 |
return JNI_FALSE; |
|
786 |
#endif /* ifndef GAMMA */ |
|
787 |
} |
|
788 |
||
789 |
/* |
|
790 |
* If app is "/foo/bin/javac", or "/foo/bin/sparcv9/javac" then put |
|
791 |
* "/foo" into buf. |
|
792 |
*/ |
|
793 |
jboolean |
|
794 |
GetApplicationHome(char *buf, jint bufsize) |
|
795 |
{ |
|
796 |
#ifdef __linux__ |
|
797 |
char *execname = GetExecname(); |
|
798 |
if (execname) { |
|
799 |
strncpy(buf, execname, bufsize-1); |
|
800 |
buf[bufsize-1] = '\0'; |
|
801 |
} else { |
|
802 |
return JNI_FALSE; |
|
803 |
} |
|
804 |
#else |
|
805 |
Dl_info dlinfo; |
|
806 |
||
807 |
dladdr((void *)GetApplicationHome, &dlinfo); |
|
808 |
if (realpath(dlinfo.dli_fname, buf) == NULL) { |
|
809 |
fprintf(stderr, "Error: realpath(`%s') failed.\n", dlinfo.dli_fname); |
|
810 |
return JNI_FALSE; |
|
811 |
} |
|
812 |
#endif |
|
813 |
||
814 |
#ifdef GAMMA |
|
815 |
{ |
|
7452
b3fa838286de
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
7410
diff
changeset
|
816 |
/* gamma launcher uses JAVA_HOME environment variable to find JDK/JRE */ |
b3fa838286de
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
7410
diff
changeset
|
817 |
char* java_home_var = getenv("JAVA_HOME"); |
7410 | 818 |
if (java_home_var == NULL) { |
7452
b3fa838286de
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
7410
diff
changeset
|
819 |
printf("JAVA_HOME must point to a valid JDK/JRE to run gamma\n"); |
7410 | 820 |
return JNI_FALSE; |
821 |
} |
|
822 |
snprintf(buf, bufsize, "%s", java_home_var); |
|
823 |
} |
|
824 |
#else |
|
825 |
if (strrchr(buf, '/') == 0) { |
|
826 |
buf[0] = '\0'; |
|
827 |
return JNI_FALSE; |
|
828 |
} |
|
829 |
*(strrchr(buf, '/')) = '\0'; /* executable file */ |
|
830 |
if (strlen(buf) < 4 || strrchr(buf, '/') == 0) { |
|
831 |
buf[0] = '\0'; |
|
832 |
return JNI_FALSE; |
|
833 |
} |
|
834 |
if (strcmp("/bin", buf + strlen(buf) - 4) != 0) |
|
835 |
*(strrchr(buf, '/')) = '\0'; /* sparcv9 or amd64 */ |
|
836 |
if (strlen(buf) < 4 || strcmp("/bin", buf + strlen(buf) - 4) != 0) { |
|
837 |
buf[0] = '\0'; |
|
838 |
return JNI_FALSE; |
|
839 |
} |
|
840 |
*(strrchr(buf, '/')) = '\0'; /* bin */ |
|
841 |
#endif /* ifndef GAMMA */ |
|
842 |
||
843 |
return JNI_TRUE; |
|
844 |
} |
|
845 |
||
846 |
||
847 |
/* |
|
848 |
* Return true if the named program exists |
|
849 |
*/ |
|
850 |
static int |
|
851 |
ProgramExists(char *name) |
|
852 |
{ |
|
853 |
struct stat sb; |
|
854 |
if (stat(name, &sb) != 0) return 0; |
|
855 |
if (S_ISDIR(sb.st_mode)) return 0; |
|
856 |
return (sb.st_mode & S_IEXEC) != 0; |
|
857 |
} |
|
858 |
||
859 |
||
860 |
/* |
|
861 |
* Find a command in a directory, returning the path. |
|
862 |
*/ |
|
863 |
static char * |
|
864 |
Resolve(char *indir, char *cmd) |
|
865 |
{ |
|
866 |
char name[PATH_MAX + 2], *real; |
|
867 |
||
868 |
if ((strlen(indir) + strlen(cmd) + 1) > PATH_MAX) return 0; |
|
869 |
sprintf(name, "%s%c%s", indir, FILE_SEPARATOR, cmd); |
|
870 |
if (!ProgramExists(name)) return 0; |
|
871 |
real = JLI_MemAlloc(PATH_MAX + 2); |
|
872 |
if (!realpath(name, real)) |
|
873 |
strcpy(real, name); |
|
874 |
return real; |
|
875 |
} |
|
876 |
||
877 |
||
878 |
/* |
|
879 |
* Find a path for the executable |
|
880 |
*/ |
|
881 |
static char * |
|
882 |
FindExecName(char *program) |
|
883 |
{ |
|
884 |
char cwdbuf[PATH_MAX+2]; |
|
885 |
char *path; |
|
886 |
char *tmp_path; |
|
887 |
char *f; |
|
888 |
char *result = NULL; |
|
889 |
||
890 |
/* absolute path? */ |
|
891 |
if (*program == FILE_SEPARATOR || |
|
892 |
(FILE_SEPARATOR=='\\' && strrchr(program, ':'))) |
|
893 |
return Resolve("", program+1); |
|
894 |
||
895 |
/* relative path? */ |
|
896 |
if (strrchr(program, FILE_SEPARATOR) != 0) { |
|
897 |
char buf[PATH_MAX+2]; |
|
898 |
return Resolve(getcwd(cwdbuf, sizeof(cwdbuf)), program); |
|
899 |
} |
|
900 |
||
901 |
/* from search path? */ |
|
902 |
path = getenv("PATH"); |
|
903 |
if (!path || !*path) path = "."; |
|
904 |
tmp_path = JLI_MemAlloc(strlen(path) + 2); |
|
905 |
strcpy(tmp_path, path); |
|
906 |
||
907 |
for (f=tmp_path; *f && result==0; ) { |
|
908 |
char *s = f; |
|
909 |
while (*f && (*f != PATH_SEPARATOR)) ++f; |
|
910 |
if (*f) *f++ = 0; |
|
911 |
if (*s == FILE_SEPARATOR) |
|
912 |
result = Resolve(s, program); |
|
913 |
else { |
|
914 |
/* relative path element */ |
|
915 |
char dir[2*PATH_MAX]; |
|
916 |
sprintf(dir, "%s%c%s", getcwd(cwdbuf, sizeof(cwdbuf)), |
|
917 |
FILE_SEPARATOR, s); |
|
918 |
result = Resolve(dir, program); |
|
919 |
} |
|
920 |
if (result != 0) break; |
|
921 |
} |
|
922 |
||
923 |
JLI_MemFree(tmp_path); |
|
924 |
return result; |
|
925 |
} |
|
926 |
||
927 |
||
928 |
/* Store the name of the executable once computed */ |
|
929 |
static char *execname = NULL; |
|
930 |
||
931 |
/* |
|
932 |
* Compute the name of the executable |
|
933 |
* |
|
934 |
* In order to re-exec securely we need the absolute path of the |
|
935 |
* executable. On Solaris getexecname(3c) may not return an absolute |
|
936 |
* path so we use dladdr to get the filename of the executable and |
|
937 |
* then use realpath to derive an absolute path. From Solaris 9 |
|
938 |
* onwards the filename returned in DL_info structure from dladdr is |
|
939 |
* an absolute pathname so technically realpath isn't required. |
|
940 |
* On Linux we read the executable name from /proc/self/exe. |
|
941 |
* As a fallback, and for platforms other than Solaris and Linux, |
|
942 |
* we use FindExecName to compute the executable name. |
|
943 |
*/ |
|
944 |
static char * |
|
945 |
SetExecname(char **argv) |
|
946 |
{ |
|
947 |
char* exec_path = NULL; |
|
948 |
||
949 |
if (execname != NULL) /* Already determined */ |
|
950 |
return (execname); |
|
951 |
||
952 |
#if defined(__sun) |
|
953 |
{ |
|
954 |
Dl_info dlinfo; |
|
955 |
if (dladdr((void*)&SetExecname, &dlinfo)) { |
|
956 |
char *resolved = (char*)JLI_MemAlloc(PATH_MAX+1); |
|
957 |
if (resolved != NULL) { |
|
958 |
exec_path = realpath(dlinfo.dli_fname, resolved); |
|
959 |
if (exec_path == NULL) { |
|
960 |
JLI_MemFree(resolved); |
|
961 |
} |
|
962 |
} |
|
963 |
} |
|
964 |
} |
|
965 |
#elif defined(__linux__) |
|
966 |
{ |
|
967 |
const char* self = "/proc/self/exe"; |
|
968 |
char buf[PATH_MAX+1]; |
|
969 |
int len = readlink(self, buf, PATH_MAX); |
|
970 |
if (len >= 0) { |
|
971 |
buf[len] = '\0'; /* readlink doesn't nul terminate */ |
|
972 |
exec_path = JLI_StringDup(buf); |
|
973 |
} |
|
974 |
} |
|
975 |
#else /* !__sun && !__linux */ |
|
976 |
{ |
|
977 |
/* Not implemented */ |
|
978 |
} |
|
979 |
#endif |
|
980 |
||
981 |
if (exec_path == NULL) { |
|
982 |
exec_path = FindExecName(argv[0]); |
|
983 |
} |
|
984 |
execname = exec_path; |
|
985 |
return exec_path; |
|
986 |
} |
|
987 |
||
988 |
/* |
|
989 |
* Return the name of the executable. Used in java_md.c to find the JRE area. |
|
990 |
*/ |
|
991 |
static char * |
|
992 |
GetExecname() { |
|
993 |
return execname; |
|
994 |
} |
|
995 |
||
996 |
void ReportErrorMessage(char * message, jboolean always) { |
|
997 |
if (always) { |
|
998 |
fprintf(stderr, "%s\n", message); |
|
999 |
} |
|
1000 |
} |
|
1001 |
||
1002 |
void ReportErrorMessage2(char * format, char * string, jboolean always) { |
|
1003 |
if (always) { |
|
1004 |
fprintf(stderr, format, string); |
|
1005 |
fprintf(stderr, "\n"); |
|
1006 |
} |
|
1007 |
} |
|
1008 |
||
1009 |
void ReportExceptionDescription(JNIEnv * env) { |
|
1010 |
(*env)->ExceptionDescribe(env); |
|
1011 |
} |
|
1012 |
||
1013 |
/* |
|
1014 |
* Return JNI_TRUE for an option string that has no effect but should |
|
1015 |
* _not_ be passed on to the vm; return JNI_FALSE otherwise. On |
|
1016 |
* Solaris SPARC, this screening needs to be done if: |
|
1017 |
* 1) LD_LIBRARY_PATH does _not_ need to be reset and |
|
1018 |
* 2) -d32 or -d64 is passed to a binary with a matching data model |
|
1019 |
* (the exec in SetLibraryPath removes -d<n> options and points the |
|
1020 |
* exec to the proper binary). When this exec is not done, these options |
|
1021 |
* would end up getting passed onto the vm. |
|
1022 |
*/ |
|
1023 |
jboolean RemovableMachineDependentOption(char * option) { |
|
1024 |
/* |
|
1025 |
* Unconditionally remove both -d32 and -d64 options since only |
|
1026 |
* the last such options has an effect; e.g. |
|
1027 |
* java -d32 -d64 -d32 -version |
|
1028 |
* is equivalent to |
|
1029 |
* java -d32 -version |
|
1030 |
*/ |
|
1031 |
||
1032 |
if( (strcmp(option, "-d32") == 0 ) || |
|
1033 |
(strcmp(option, "-d64") == 0 )) |
|
1034 |
return JNI_TRUE; |
|
1035 |
else |
|
1036 |
return JNI_FALSE; |
|
1037 |
} |
|
1038 |
||
1039 |
void PrintMachineDependentOptions() { |
|
1040 |
fprintf(stdout, |
|
1041 |
" -d32 use a 32-bit data model if available\n" |
|
1042 |
"\n" |
|
1043 |
" -d64 use a 64-bit data model if available\n"); |
|
1044 |
return; |
|
1045 |
} |
|
1046 |
||
1047 |
#ifndef GAMMA |
|
1048 |
/* |
|
1049 |
* The following methods (down to ServerClassMachine()) answer |
|
1050 |
* the question about whether a machine is a "server-class" |
|
1051 |
* machine. A server-class machine is loosely defined as one |
|
1052 |
* with 2 or more processors and 2 gigabytes or more physical |
|
1053 |
* memory. The definition of a processor is a physical package, |
|
1054 |
* not a hyperthreaded chip masquerading as a multi-processor. |
|
1055 |
* The definition of memory is also somewhat fuzzy, since x86 |
|
1056 |
* machines seem not to report all the memory in their DIMMs, we |
|
1057 |
* think because of memory mapping of graphics cards, etc. |
|
1058 |
* |
|
1059 |
* This code is somewhat more confused with #ifdef's than we'd |
|
1060 |
* like because this file is used by both Solaris and Linux |
|
1061 |
* platforms, and so needs to be parameterized for SPARC and |
|
1062 |
* i586 hardware. The other Linux platforms (amd64 and ia64) |
|
1063 |
* don't even ask this question, because they only come with |
|
1064 |
* server JVMs. */ |
|
1065 |
||
1066 |
# define KB (1024UL) |
|
1067 |
# define MB (1024UL * KB) |
|
1068 |
# define GB (1024UL * MB) |
|
1069 |
||
1070 |
/* Compute physical memory by asking the OS */ |
|
1071 |
uint64_t |
|
1072 |
physical_memory(void) { |
|
1073 |
const uint64_t pages = (uint64_t) sysconf(_SC_PHYS_PAGES); |
|
1074 |
const uint64_t page_size = (uint64_t) sysconf(_SC_PAGESIZE); |
|
1075 |
const uint64_t result = pages * page_size; |
|
1076 |
# define UINT64_FORMAT "%" PRIu64 |
|
1077 |
||
1078 |
if (_launcher_debug) { |
|
1079 |
printf("pages: " UINT64_FORMAT |
|
1080 |
" page_size: " UINT64_FORMAT |
|
1081 |
" physical memory: " UINT64_FORMAT " (%.3fGB)\n", |
|
1082 |
pages, page_size, result, result / (double) GB); |
|
1083 |
} |
|
1084 |
return result; |
|
1085 |
} |
|
1086 |
||
1087 |
#if defined(__sun) && defined(__sparc) |
|
1088 |
||
1089 |
/* Methods for solaris-sparc: these are easy. */ |
|
1090 |
||
1091 |
/* Ask the OS how many processors there are. */ |
|
1092 |
unsigned long |
|
1093 |
physical_processors(void) { |
|
1094 |
const unsigned long sys_processors = sysconf(_SC_NPROCESSORS_CONF); |
|
1095 |
||
1096 |
if (_launcher_debug) { |
|
1097 |
printf("sysconf(_SC_NPROCESSORS_CONF): %lu\n", sys_processors); |
|
1098 |
} |
|
1099 |
return sys_processors; |
|
1100 |
} |
|
1101 |
||
1102 |
/* The solaris-sparc version of the "server-class" predicate. */ |
|
1103 |
jboolean |
|
1104 |
solaris_sparc_ServerClassMachine(void) { |
|
1105 |
jboolean result = JNI_FALSE; |
|
1106 |
/* How big is a server class machine? */ |
|
1107 |
const unsigned long server_processors = 2UL; |
|
1108 |
const uint64_t server_memory = 2UL * GB; |
|
1109 |
const uint64_t actual_memory = physical_memory(); |
|
1110 |
||
1111 |
/* Is this a server class machine? */ |
|
1112 |
if (actual_memory >= server_memory) { |
|
1113 |
const unsigned long actual_processors = physical_processors(); |
|
1114 |
if (actual_processors >= server_processors) { |
|
1115 |
result = JNI_TRUE; |
|
1116 |
} |
|
1117 |
} |
|
1118 |
if (_launcher_debug) { |
|
1119 |
printf("solaris_" LIBARCHNAME "_ServerClassMachine: %s\n", |
|
1120 |
(result == JNI_TRUE ? "JNI_TRUE" : "JNI_FALSE")); |
|
1121 |
} |
|
1122 |
return result; |
|
1123 |
} |
|
1124 |
||
1125 |
#endif /* __sun && __sparc */ |
|
1126 |
||
1127 |
#if defined(__sun) && defined(i586) |
|
1128 |
||
1129 |
/* |
|
1130 |
* A utility method for asking the CPU about itself. |
|
1131 |
* There's a corresponding version of linux-i586 |
|
1132 |
* because the compilers are different. |
|
1133 |
*/ |
|
1134 |
void |
|
1135 |
get_cpuid(uint32_t arg, |
|
1136 |
uint32_t* eaxp, |
|
1137 |
uint32_t* ebxp, |
|
1138 |
uint32_t* ecxp, |
|
1139 |
uint32_t* edxp) { |
|
1140 |
#ifdef _LP64 |
|
1141 |
asm( |
|
1142 |
/* rbx is a callee-saved register */ |
|
1143 |
" movq %rbx, %r11 \n" |
|
1144 |
/* rdx and rcx are 3rd and 4th argument registers */ |
|
1145 |
" movq %rdx, %r10 \n" |
|
1146 |
" movq %rcx, %r9 \n" |
|
1147 |
" movl %edi, %eax \n" |
|
1148 |
" cpuid \n" |
|
1149 |
" movl %eax, (%rsi)\n" |
|
1150 |
" movl %ebx, (%r10)\n" |
|
1151 |
" movl %ecx, (%r9) \n" |
|
1152 |
" movl %edx, (%r8) \n" |
|
1153 |
/* Restore rbx */ |
|
1154 |
" movq %r11, %rbx"); |
|
1155 |
#else |
|
1156 |
/* EBX is a callee-saved register */ |
|
1157 |
asm(" pushl %ebx"); |
|
1158 |
/* Need ESI for storing through arguments */ |
|
1159 |
asm(" pushl %esi"); |
|
1160 |
asm(" movl 8(%ebp), %eax \n" |
|
1161 |
" cpuid \n" |
|
1162 |
" movl 12(%ebp), %esi \n" |
|
1163 |
" movl %eax, (%esi) \n" |
|
1164 |
" movl 16(%ebp), %esi \n" |
|
1165 |
" movl %ebx, (%esi) \n" |
|
1166 |
" movl 20(%ebp), %esi \n" |
|
1167 |
" movl %ecx, (%esi) \n" |
|
1168 |
" movl 24(%ebp), %esi \n" |
|
1169 |
" movl %edx, (%esi) "); |
|
1170 |
/* Restore ESI and EBX */ |
|
1171 |
asm(" popl %esi"); |
|
1172 |
/* Restore EBX */ |
|
1173 |
asm(" popl %ebx"); |
|
1174 |
#endif |
|
1175 |
} |
|
1176 |
||
1177 |
#endif /* __sun && i586 */ |
|
1178 |
||
1179 |
#if defined(__linux__) && defined(i586) |
|
1180 |
||
1181 |
/* |
|
1182 |
* A utility method for asking the CPU about itself. |
|
1183 |
* There's a corresponding version of solaris-i586 |
|
1184 |
* because the compilers are different. |
|
1185 |
*/ |
|
1186 |
void |
|
1187 |
get_cpuid(uint32_t arg, |
|
1188 |
uint32_t* eaxp, |
|
1189 |
uint32_t* ebxp, |
|
1190 |
uint32_t* ecxp, |
|
1191 |
uint32_t* edxp) { |
|
1192 |
#ifdef _LP64 |
|
1193 |
__asm__ volatile (/* Instructions */ |
|
1194 |
" movl %4, %%eax \n" |
|
1195 |
" cpuid \n" |
|
1196 |
" movl %%eax, (%0)\n" |
|
1197 |
" movl %%ebx, (%1)\n" |
|
1198 |
" movl %%ecx, (%2)\n" |
|
1199 |
" movl %%edx, (%3)\n" |
|
1200 |
: /* Outputs */ |
|
1201 |
: /* Inputs */ |
|
1202 |
"r" (eaxp), |
|
1203 |
"r" (ebxp), |
|
1204 |
"r" (ecxp), |
|
1205 |
"r" (edxp), |
|
1206 |
"r" (arg) |
|
1207 |
: /* Clobbers */ |
|
1208 |
"%rax", "%rbx", "%rcx", "%rdx", "memory" |
|
1209 |
); |
|
1210 |
#else |
|
1211 |
uint32_t value_of_eax = 0; |
|
1212 |
uint32_t value_of_ebx = 0; |
|
1213 |
uint32_t value_of_ecx = 0; |
|
1214 |
uint32_t value_of_edx = 0; |
|
1215 |
__asm__ volatile (/* Instructions */ |
|
1216 |
/* ebx is callee-save, so push it */ |
|
1217 |
" pushl %%ebx \n" |
|
1218 |
" movl %4, %%eax \n" |
|
1219 |
" cpuid \n" |
|
1220 |
" movl %%eax, %0 \n" |
|
1221 |
" movl %%ebx, %1 \n" |
|
1222 |
" movl %%ecx, %2 \n" |
|
1223 |
" movl %%edx, %3 \n" |
|
1224 |
/* restore ebx */ |
|
1225 |
" popl %%ebx \n" |
|
1226 |
||
1227 |
: /* Outputs */ |
|
1228 |
"=m" (value_of_eax), |
|
1229 |
"=m" (value_of_ebx), |
|
1230 |
"=m" (value_of_ecx), |
|
1231 |
"=m" (value_of_edx) |
|
1232 |
: /* Inputs */ |
|
1233 |
"m" (arg) |
|
1234 |
: /* Clobbers */ |
|
1235 |
"%eax", "%ecx", "%edx" |
|
1236 |
); |
|
1237 |
*eaxp = value_of_eax; |
|
1238 |
*ebxp = value_of_ebx; |
|
1239 |
*ecxp = value_of_ecx; |
|
1240 |
*edxp = value_of_edx; |
|
1241 |
#endif |
|
1242 |
} |
|
1243 |
||
1244 |
#endif /* __linux__ && i586 */ |
|
1245 |
||
1246 |
#ifdef i586 |
|
1247 |
/* |
|
1248 |
* Routines shared by solaris-i586 and linux-i586. |
|
1249 |
*/ |
|
1250 |
||
1251 |
enum HyperThreadingSupport_enum { |
|
1252 |
hts_supported = 1, |
|
1253 |
hts_too_soon_to_tell = 0, |
|
1254 |
hts_not_supported = -1, |
|
1255 |
hts_not_pentium4 = -2, |
|
1256 |
hts_not_intel = -3 |
|
1257 |
}; |
|
1258 |
typedef enum HyperThreadingSupport_enum HyperThreadingSupport; |
|
1259 |
||
1260 |
/* Determine if hyperthreading is supported */ |
|
1261 |
HyperThreadingSupport |
|
1262 |
hyperthreading_support(void) { |
|
1263 |
HyperThreadingSupport result = hts_too_soon_to_tell; |
|
1264 |
/* Bits 11 through 8 is family processor id */ |
|
1265 |
# define FAMILY_ID_SHIFT 8 |
|
1266 |
# define FAMILY_ID_MASK 0xf |
|
1267 |
/* Bits 23 through 20 is extended family processor id */ |
|
1268 |
# define EXT_FAMILY_ID_SHIFT 20 |
|
1269 |
# define EXT_FAMILY_ID_MASK 0xf |
|
1270 |
/* Pentium 4 family processor id */ |
|
1271 |
# define PENTIUM4_FAMILY_ID 0xf |
|
1272 |
/* Bit 28 indicates Hyper-Threading Technology support */ |
|
1273 |
# define HT_BIT_SHIFT 28 |
|
1274 |
# define HT_BIT_MASK 1 |
|
1275 |
uint32_t vendor_id[3] = { 0U, 0U, 0U }; |
|
1276 |
uint32_t value_of_eax = 0U; |
|
1277 |
uint32_t value_of_edx = 0U; |
|
1278 |
uint32_t dummy = 0U; |
|
1279 |
||
1280 |
/* Yes, this is supposed to be [0], [2], [1] */ |
|
1281 |
get_cpuid(0, &dummy, &vendor_id[0], &vendor_id[2], &vendor_id[1]); |
|
1282 |
if (_launcher_debug) { |
|
1283 |
printf("vendor: %c %c %c %c %c %c %c %c %c %c %c %c \n", |
|
1284 |
((vendor_id[0] >> 0) & 0xff), |
|
1285 |
((vendor_id[0] >> 8) & 0xff), |
|
1286 |
((vendor_id[0] >> 16) & 0xff), |
|
1287 |
((vendor_id[0] >> 24) & 0xff), |
|
1288 |
((vendor_id[1] >> 0) & 0xff), |
|
1289 |
((vendor_id[1] >> 8) & 0xff), |
|
1290 |
((vendor_id[1] >> 16) & 0xff), |
|
1291 |
((vendor_id[1] >> 24) & 0xff), |
|
1292 |
((vendor_id[2] >> 0) & 0xff), |
|
1293 |
((vendor_id[2] >> 8) & 0xff), |
|
1294 |
((vendor_id[2] >> 16) & 0xff), |
|
1295 |
((vendor_id[2] >> 24) & 0xff)); |
|
1296 |
} |
|
1297 |
get_cpuid(1, &value_of_eax, &dummy, &dummy, &value_of_edx); |
|
1298 |
if (_launcher_debug) { |
|
1299 |
printf("value_of_eax: 0x%x value_of_edx: 0x%x\n", |
|
1300 |
value_of_eax, value_of_edx); |
|
1301 |
} |
|
1302 |
if ((((value_of_eax >> FAMILY_ID_SHIFT) & FAMILY_ID_MASK) == PENTIUM4_FAMILY_ID) || |
|
1303 |
(((value_of_eax >> EXT_FAMILY_ID_SHIFT) & EXT_FAMILY_ID_MASK) != 0)) { |
|
1304 |
if ((((vendor_id[0] >> 0) & 0xff) == 'G') && |
|
1305 |
(((vendor_id[0] >> 8) & 0xff) == 'e') && |
|
1306 |
(((vendor_id[0] >> 16) & 0xff) == 'n') && |
|
1307 |
(((vendor_id[0] >> 24) & 0xff) == 'u') && |
|
1308 |
(((vendor_id[1] >> 0) & 0xff) == 'i') && |
|
1309 |
(((vendor_id[1] >> 8) & 0xff) == 'n') && |
|
1310 |
(((vendor_id[1] >> 16) & 0xff) == 'e') && |
|
1311 |
(((vendor_id[1] >> 24) & 0xff) == 'I') && |
|
1312 |
(((vendor_id[2] >> 0) & 0xff) == 'n') && |
|
1313 |
(((vendor_id[2] >> 8) & 0xff) == 't') && |
|
1314 |
(((vendor_id[2] >> 16) & 0xff) == 'e') && |
|
1315 |
(((vendor_id[2] >> 24) & 0xff) == 'l')) { |
|
1316 |
if (((value_of_edx >> HT_BIT_SHIFT) & HT_BIT_MASK) == HT_BIT_MASK) { |
|
1317 |
if (_launcher_debug) { |
|
1318 |
printf("Hyperthreading supported\n"); |
|
1319 |
} |
|
1320 |
result = hts_supported; |
|
1321 |
} else { |
|
1322 |
if (_launcher_debug) { |
|
1323 |
printf("Hyperthreading not supported\n"); |
|
1324 |
} |
|
1325 |
result = hts_not_supported; |
|
1326 |
} |
|
1327 |
} else { |
|
1328 |
if (_launcher_debug) { |
|
1329 |
printf("Not GenuineIntel\n"); |
|
1330 |
} |
|
1331 |
result = hts_not_intel; |
|
1332 |
} |
|
1333 |
} else { |
|
1334 |
if (_launcher_debug) { |
|
1335 |
printf("not Pentium 4 or extended\n"); |
|
1336 |
} |
|
1337 |
result = hts_not_pentium4; |
|
1338 |
} |
|
1339 |
return result; |
|
1340 |
} |
|
1341 |
||
1342 |
/* Determine how many logical processors there are per CPU */ |
|
1343 |
unsigned int |
|
1344 |
logical_processors_per_package(void) { |
|
1345 |
/* |
|
1346 |
* After CPUID with EAX==1, register EBX bits 23 through 16 |
|
1347 |
* indicate the number of logical processors per package |
|
1348 |
*/ |
|
1349 |
# define NUM_LOGICAL_SHIFT 16 |
|
1350 |
# define NUM_LOGICAL_MASK 0xff |
|
1351 |
unsigned int result = 1U; |
|
1352 |
const HyperThreadingSupport hyperthreading = hyperthreading_support(); |
|
1353 |
||
1354 |
if (hyperthreading == hts_supported) { |
|
1355 |
uint32_t value_of_ebx = 0U; |
|
1356 |
uint32_t dummy = 0U; |
|
1357 |
||
1358 |
get_cpuid(1, &dummy, &value_of_ebx, &dummy, &dummy); |
|
1359 |
result = (value_of_ebx >> NUM_LOGICAL_SHIFT) & NUM_LOGICAL_MASK; |
|
1360 |
if (_launcher_debug) { |
|
1361 |
printf("logical processors per package: %u\n", result); |
|
1362 |
} |
|
1363 |
} |
|
1364 |
return result; |
|
1365 |
} |
|
1366 |
||
1367 |
/* Compute the number of physical processors, not logical processors */ |
|
1368 |
unsigned long |
|
1369 |
physical_processors(void) { |
|
1370 |
const long sys_processors = sysconf(_SC_NPROCESSORS_CONF); |
|
1371 |
unsigned long result = sys_processors; |
|
1372 |
||
1373 |
if (_launcher_debug) { |
|
1374 |
printf("sysconf(_SC_NPROCESSORS_CONF): %lu\n", sys_processors); |
|
1375 |
} |
|
1376 |
if (sys_processors > 1) { |
|
1377 |
unsigned int logical_processors = logical_processors_per_package(); |
|
1378 |
if (logical_processors > 1) { |
|
1379 |
result = (unsigned long) sys_processors / logical_processors; |
|
1380 |
} |
|
1381 |
} |
|
1382 |
if (_launcher_debug) { |
|
1383 |
printf("physical processors: %lu\n", result); |
|
1384 |
} |
|
1385 |
return result; |
|
1386 |
} |
|
1387 |
||
1388 |
#endif /* i586 */ |
|
1389 |
||
1390 |
#if defined(__sun) && defined(i586) |
|
1391 |
||
1392 |
/* The definition of a server-class machine for solaris-i586/amd64 */ |
|
1393 |
jboolean |
|
1394 |
solaris_i586_ServerClassMachine(void) { |
|
1395 |
jboolean result = JNI_FALSE; |
|
1396 |
/* How big is a server class machine? */ |
|
1397 |
const unsigned long server_processors = 2UL; |
|
1398 |
const uint64_t server_memory = 2UL * GB; |
|
1399 |
/* |
|
1400 |
* We seem not to get our full complement of memory. |
|
1401 |
* We allow some part (1/8?) of the memory to be "missing", |
|
1402 |
* based on the sizes of DIMMs, and maybe graphics cards. |
|
1403 |
*/ |
|
1404 |
const uint64_t missing_memory = 256UL * MB; |
|
1405 |
const uint64_t actual_memory = physical_memory(); |
|
1406 |
||
1407 |
/* Is this a server class machine? */ |
|
1408 |
if (actual_memory >= (server_memory - missing_memory)) { |
|
1409 |
const unsigned long actual_processors = physical_processors(); |
|
1410 |
if (actual_processors >= server_processors) { |
|
1411 |
result = JNI_TRUE; |
|
1412 |
} |
|
1413 |
} |
|
1414 |
if (_launcher_debug) { |
|
1415 |
printf("solaris_" LIBARCHNAME "_ServerClassMachine: %s\n", |
|
1416 |
(result == JNI_TRUE ? "true" : "false")); |
|
1417 |
} |
|
1418 |
return result; |
|
1419 |
} |
|
1420 |
||
1421 |
#endif /* __sun && i586 */ |
|
1422 |
||
1423 |
#if defined(__linux__) && defined(i586) |
|
1424 |
||
1425 |
/* The definition of a server-class machine for linux-i586 */ |
|
1426 |
jboolean |
|
1427 |
linux_i586_ServerClassMachine(void) { |
|
1428 |
jboolean result = JNI_FALSE; |
|
1429 |
/* How big is a server class machine? */ |
|
1430 |
const unsigned long server_processors = 2UL; |
|
1431 |
const uint64_t server_memory = 2UL * GB; |
|
1432 |
/* |
|
1433 |
* We seem not to get our full complement of memory. |
|
1434 |
* We allow some part (1/8?) of the memory to be "missing", |
|
1435 |
* based on the sizes of DIMMs, and maybe graphics cards. |
|
1436 |
*/ |
|
1437 |
const uint64_t missing_memory = 256UL * MB; |
|
1438 |
const uint64_t actual_memory = physical_memory(); |
|
1439 |
||
1440 |
/* Is this a server class machine? */ |
|
1441 |
if (actual_memory >= (server_memory - missing_memory)) { |
|
1442 |
const unsigned long actual_processors = physical_processors(); |
|
1443 |
if (actual_processors >= server_processors) { |
|
1444 |
result = JNI_TRUE; |
|
1445 |
} |
|
1446 |
} |
|
1447 |
if (_launcher_debug) { |
|
1448 |
printf("linux_" LIBARCHNAME "_ServerClassMachine: %s\n", |
|
1449 |
(result == JNI_TRUE ? "true" : "false")); |
|
1450 |
} |
|
1451 |
return result; |
|
1452 |
} |
|
1453 |
||
1454 |
#endif /* __linux__ && i586 */ |
|
1455 |
||
1456 |
/* Dispatch to the platform-specific definition of "server-class" */ |
|
1457 |
jboolean |
|
1458 |
ServerClassMachine(void) { |
|
1459 |
jboolean result = JNI_FALSE; |
|
1460 |
#if defined(NEVER_ACT_AS_SERVER_CLASS_MACHINE) |
|
1461 |
result = JNI_FALSE; |
|
1462 |
#elif defined(ALWAYS_ACT_AS_SERVER_CLASS_MACHINE) |
|
1463 |
result = JNI_TRUE; |
|
1464 |
#elif defined(__sun) && defined(__sparc) |
|
1465 |
result = solaris_sparc_ServerClassMachine(); |
|
1466 |
#elif defined(__sun) && defined(i586) |
|
1467 |
result = solaris_i586_ServerClassMachine(); |
|
1468 |
#elif defined(__linux__) && defined(i586) |
|
1469 |
result = linux_i586_ServerClassMachine(); |
|
1470 |
#else |
|
1471 |
if (_launcher_debug) { |
|
1472 |
printf("ServerClassMachine: returns default value of %s\n", |
|
1473 |
(result == JNI_TRUE ? "true" : "false")); |
|
1474 |
} |
|
1475 |
#endif |
|
1476 |
return result; |
|
1477 |
} |
|
1478 |
||
1479 |
/* |
|
1480 |
* Since using the file system as a registry is a bit risky, perform |
|
1481 |
* additional sanity checks on the identified directory to validate |
|
1482 |
* it as a valid jre/sdk. |
|
1483 |
* |
|
1484 |
* Return 0 if the tests fail; otherwise return non-zero (true). |
|
1485 |
* |
|
1486 |
* Note that checking for anything more than the existence of an |
|
1487 |
* executable object at bin/java relative to the path being checked |
|
1488 |
* will break the regression tests. |
|
1489 |
*/ |
|
1490 |
static int |
|
1491 |
CheckSanity(char *path, char *dir) |
|
1492 |
{ |
|
1493 |
char buffer[PATH_MAX]; |
|
1494 |
||
1495 |
if (strlen(path) + strlen(dir) + 11 > PATH_MAX) |
|
1496 |
return (0); /* Silently reject "impossibly" long paths */ |
|
1497 |
||
1498 |
(void)strcat(strcat(strcat(strcpy(buffer, path), "/"), dir), "/bin/java"); |
|
1499 |
return ((access(buffer, X_OK) == 0) ? 1 : 0); |
|
1500 |
} |
|
1501 |
||
1502 |
/* |
|
1503 |
* Determine if there is an acceptable JRE in the directory dirname. |
|
1504 |
* Upon locating the "best" one, return a fully qualified path to |
|
1505 |
* it. "Best" is defined as the most advanced JRE meeting the |
|
1506 |
* constraints contained in the manifest_info. If no JRE in this |
|
1507 |
* directory meets the constraints, return NULL. |
|
1508 |
* |
|
1509 |
* Note that we don't check for errors in reading the directory |
|
1510 |
* (which would be done by checking errno). This is because it |
|
1511 |
* doesn't matter if we get an error reading the directory, or |
|
1512 |
* we just don't find anything interesting in the directory. We |
|
1513 |
* just return NULL in either case. |
|
1514 |
* |
|
1515 |
* The historical names of j2sdk and j2re were changed to jdk and |
|
1516 |
* jre respecively as part of the 1.5 rebranding effort. Since the |
|
1517 |
* former names are legacy on Linux, they must be recognized for |
|
1518 |
* all time. Fortunately, this is a minor cost. |
|
1519 |
*/ |
|
1520 |
static char |
|
1521 |
*ProcessDir(manifest_info *info, char *dirname) |
|
1522 |
{ |
|
1523 |
DIR *dirp; |
|
1524 |
struct dirent *dp; |
|
1525 |
char *best = NULL; |
|
1526 |
int offset; |
|
1527 |
int best_offset = 0; |
|
1528 |
char *ret_str = NULL; |
|
1529 |
char buffer[PATH_MAX]; |
|
1530 |
||
1531 |
if ((dirp = opendir(dirname)) == NULL) |
|
1532 |
return (NULL); |
|
1533 |
||
1534 |
do { |
|
1535 |
if ((dp = readdir(dirp)) != NULL) { |
|
1536 |
offset = 0; |
|
1537 |
if ((strncmp(dp->d_name, "jre", 3) == 0) || |
|
1538 |
(strncmp(dp->d_name, "jdk", 3) == 0)) |
|
1539 |
offset = 3; |
|
1540 |
else if (strncmp(dp->d_name, "j2re", 4) == 0) |
|
1541 |
offset = 4; |
|
1542 |
else if (strncmp(dp->d_name, "j2sdk", 5) == 0) |
|
1543 |
offset = 5; |
|
1544 |
if (offset > 0) { |
|
1545 |
if ((JLI_AcceptableRelease(dp->d_name + offset, |
|
1546 |
info->jre_version)) && CheckSanity(dirname, dp->d_name)) |
|
1547 |
if ((best == NULL) || (JLI_ExactVersionId( |
|
1548 |
dp->d_name + offset, best + best_offset) > 0)) { |
|
1549 |
if (best != NULL) |
|
1550 |
JLI_MemFree(best); |
|
1551 |
best = JLI_StringDup(dp->d_name); |
|
1552 |
best_offset = offset; |
|
1553 |
} |
|
1554 |
} |
|
1555 |
} |
|
1556 |
} while (dp != NULL); |
|
1557 |
(void) closedir(dirp); |
|
1558 |
if (best == NULL) |
|
1559 |
return (NULL); |
|
1560 |
else { |
|
1561 |
ret_str = JLI_MemAlloc(strlen(dirname) + strlen(best) + 2); |
|
1562 |
ret_str = strcat(strcat(strcpy(ret_str, dirname), "/"), best); |
|
1563 |
JLI_MemFree(best); |
|
1564 |
return (ret_str); |
|
1565 |
} |
|
1566 |
} |
|
1567 |
||
1568 |
/* |
|
1569 |
* This is the global entry point. It examines the host for the optimal |
|
1570 |
* JRE to be used by scanning a set of directories. The set of directories |
|
1571 |
* is platform dependent and can be overridden by the environment |
|
1572 |
* variable JAVA_VERSION_PATH. |
|
1573 |
* |
|
1574 |
* This routine itself simply determines the set of appropriate |
|
1575 |
* directories before passing control onto ProcessDir(). |
|
1576 |
*/ |
|
1577 |
char* |
|
1578 |
LocateJRE(manifest_info* info) |
|
1579 |
{ |
|
1580 |
char *path; |
|
1581 |
char *home; |
|
1582 |
char *target = NULL; |
|
1583 |
char *dp; |
|
1584 |
char *cp; |
|
1585 |
||
1586 |
/* |
|
1587 |
* Start by getting JAVA_VERSION_PATH |
|
1588 |
*/ |
|
1589 |
if (info->jre_restrict_search) |
|
1590 |
path = JLI_StringDup(system_dir); |
|
1591 |
else if ((path = getenv("JAVA_VERSION_PATH")) != NULL) |
|
1592 |
path = JLI_StringDup(path); |
|
1593 |
else |
|
1594 |
if ((home = getenv("HOME")) != NULL) { |
|
1595 |
path = (char *)JLI_MemAlloc(strlen(home) + strlen(system_dir) + |
|
1596 |
strlen(user_dir) + 2); |
|
1597 |
path = strcat(strcat(strcat(strcpy(path, home), |
|
1598 |
user_dir), ":"), system_dir); |
|
1599 |
} else |
|
1600 |
path = JLI_StringDup(system_dir); |
|
1601 |
||
1602 |
/* |
|
1603 |
* Step through each directory on the path. Terminate the scan with |
|
1604 |
* the first directory with an acceptable JRE. |
|
1605 |
*/ |
|
1606 |
cp = dp = path; |
|
1607 |
while (dp != NULL) { |
|
1608 |
cp = strchr(dp, (int)':'); |
|
1609 |
if (cp != NULL) |
|
1610 |
*cp = (char)NULL; |
|
1611 |
if ((target = ProcessDir(info, dp)) != NULL) |
|
1612 |
break; |
|
1613 |
dp = cp; |
|
1614 |
if (dp != NULL) |
|
1615 |
dp++; |
|
1616 |
} |
|
1617 |
JLI_MemFree(path); |
|
1618 |
return (target); |
|
1619 |
} |
|
1620 |
||
1621 |
/* |
|
1622 |
* Given a path to a jre to execute, this routine checks if this process |
|
1623 |
* is indeed that jre. If not, it exec's that jre. |
|
1624 |
* |
|
1625 |
* We want to actually check the paths rather than just the version string |
|
1626 |
* built into the executable, so that given version specification (and |
|
1627 |
* JAVA_VERSION_PATH) will yield the exact same Java environment, regardless |
|
1628 |
* of the version of the arbitrary launcher we start with. |
|
1629 |
*/ |
|
1630 |
void |
|
1631 |
ExecJRE(char *jre, char **argv) |
|
1632 |
{ |
|
1633 |
char wanted[PATH_MAX]; |
|
1634 |
char *execname; |
|
1635 |
char *progname; |
|
1636 |
||
1637 |
/* |
|
1638 |
* Resolve the real path to the directory containing the selected JRE. |
|
1639 |
*/ |
|
1640 |
if (realpath(jre, wanted) == NULL) { |
|
1641 |
fprintf(stderr, "Unable to resolve %s\n", jre); |
|
1642 |
exit(1); |
|
1643 |
} |
|
1644 |
||
1645 |
/* |
|
1646 |
* Resolve the real path to the currently running launcher. |
|
1647 |
*/ |
|
1648 |
execname = SetExecname(argv); |
|
1649 |
if (execname == NULL) { |
|
1650 |
fprintf(stderr, "Unable to resolve current executable\n"); |
|
1651 |
exit(1); |
|
1652 |
} |
|
1653 |
||
1654 |
/* |
|
1655 |
* If the path to the selected JRE directory is a match to the initial |
|
1656 |
* portion of the path to the currently executing JRE, we have a winner! |
|
1657 |
* If so, just return. |
|
1658 |
*/ |
|
1659 |
if (strncmp(wanted, execname, strlen(wanted)) == 0) |
|
1660 |
return; /* I am the droid you were looking for */ |
|
1661 |
||
1662 |
/* |
|
1663 |
* If this isn't the selected version, exec the selected version. |
|
1664 |
*/ |
|
1665 |
#ifdef JAVA_ARGS /* javac, jar and friends. */ |
|
1666 |
progname = "java"; |
|
1667 |
#else /* java, oldjava, javaw and friends */ |
|
1668 |
#ifdef PROGNAME |
|
1669 |
progname = PROGNAME; |
|
1670 |
#else |
|
1671 |
progname = *argv; |
|
1672 |
if ((s = strrchr(progname, FILE_SEPARATOR)) != 0) { |
|
1673 |
progname = s + 1; |
|
1674 |
} |
|
1675 |
#endif /* PROGNAME */ |
|
1676 |
#endif /* JAVA_ARGS */ |
|
1677 |
||
1678 |
/* |
|
1679 |
* This should never happen (because of the selection code in SelectJRE), |
|
1680 |
* but check for "impossibly" long path names just because buffer overruns |
|
1681 |
* can be so deadly. |
|
1682 |
*/ |
|
1683 |
if (strlen(wanted) + strlen(progname) + 6 > PATH_MAX) { |
|
1684 |
fprintf(stderr, "Path length exceeds maximum length (PATH_MAX)\n"); |
|
1685 |
exit(1); |
|
1686 |
} |
|
1687 |
||
1688 |
/* |
|
1689 |
* Construct the path and exec it. |
|
1690 |
*/ |
|
1691 |
(void)strcat(strcat(wanted, "/bin/"), progname); |
|
1692 |
argv[0] = progname; |
|
1693 |
if (_launcher_debug) { |
|
1694 |
int i; |
|
1695 |
printf("ReExec Command: %s (%s)\n", wanted, argv[0]); |
|
1696 |
printf("ReExec Args:"); |
|
1697 |
for (i = 1; argv[i] != NULL; i++) |
|
1698 |
printf(" %s", argv[i]); |
|
1699 |
printf("\n"); |
|
1700 |
} |
|
1701 |
(void)fflush(stdout); |
|
1702 |
(void)fflush(stderr); |
|
1703 |
execv(wanted, argv); |
|
1704 |
perror("execv()"); |
|
1705 |
fprintf(stderr, "Exec of %s failed\n", wanted); |
|
1706 |
exit(1); |
|
1707 |
} |
|
1708 |
#endif /* ifndef GAMMA */ |
|
1709 |
||
1710 |
/* |
|
1711 |
* "Borrowed" from Solaris 10 where the unsetenv() function is being added |
|
1712 |
* to libc thanks to SUSv3 (Standard Unix Specification, version 3). As |
|
1713 |
* such, in the fullness of time this will appear in libc on all relevant |
|
1714 |
* Solaris/Linux platforms and maybe even the Windows platform. At that |
|
1715 |
* time, this stub can be removed. |
|
1716 |
* |
|
1717 |
* This implementation removes the environment locking for multithreaded |
|
1718 |
* applications. (We don't have access to these mutexes within libc and |
|
1719 |
* the launcher isn't multithreaded.) Note that what remains is platform |
|
1720 |
* independent, because it only relies on attributes that a POSIX environment |
|
1721 |
* defines. |
|
1722 |
* |
|
1723 |
* Returns 0 on success, -1 on failure. |
|
1724 |
* |
|
1725 |
* Also removed was the setting of errno. The only value of errno set |
|
1726 |
* was EINVAL ("Invalid Argument"). |
|
1727 |
*/ |
|
1728 |
||
1729 |
/* |
|
1730 |
* s1(environ) is name=value |
|
1731 |
* s2(name) is name(not the form of name=value). |
|
1732 |
* if names match, return value of 1, else return 0 |
|
1733 |
*/ |
|
1734 |
static int |
|
1735 |
match_noeq(const char *s1, const char *s2) |
|
1736 |
{ |
|
1737 |
while (*s1 == *s2++) { |
|
1738 |
if (*s1++ == '=') |
|
1739 |
return (1); |
|
1740 |
} |
|
1741 |
if (*s1 == '=' && s2[-1] == '\0') |
|
1742 |
return (1); |
|
1743 |
return (0); |
|
1744 |
} |
|
1745 |
||
1746 |
/* |
|
1747 |
* added for SUSv3 standard |
|
1748 |
* |
|
1749 |
* Delete entry from environ. |
|
1750 |
* Do not free() memory! Other threads may be using it. |
|
1751 |
* Keep it around forever. |
|
1752 |
*/ |
|
1753 |
static int |
|
1754 |
borrowed_unsetenv(const char *name) |
|
1755 |
{ |
|
1756 |
long idx; /* index into environ */ |
|
1757 |
||
1758 |
if (name == NULL || *name == '\0' || |
|
1759 |
strchr(name, '=') != NULL) { |
|
1760 |
return (-1); |
|
1761 |
} |
|
1762 |
||
1763 |
for (idx = 0; environ[idx] != NULL; idx++) { |
|
1764 |
if (match_noeq(environ[idx], name)) |
|
1765 |
break; |
|
1766 |
} |
|
1767 |
if (environ[idx] == NULL) { |
|
1768 |
/* name not found but still a success */ |
|
1769 |
return (0); |
|
1770 |
} |
|
1771 |
/* squeeze up one entry */ |
|
1772 |
do { |
|
1773 |
environ[idx] = environ[idx+1]; |
|
1774 |
} while (environ[++idx] != NULL); |
|
1775 |
||
1776 |
return (0); |
|
1777 |
} |
|
1778 |
/* --- End of "borrowed" code --- */ |
|
1779 |
||
1780 |
/* |
|
1781 |
* Wrapper for unsetenv() function. |
|
1782 |
*/ |
|
1783 |
int |
|
1784 |
UnsetEnv(char *name) |
|
1785 |
{ |
|
1786 |
return(borrowed_unsetenv(name)); |
|
1787 |
} |
|
1788 |
||
1789 |
/* --- Splash Screen shared library support --- */ |
|
1790 |
||
1791 |
static const char* SPLASHSCREEN_SO = "libsplashscreen.so"; |
|
1792 |
||
1793 |
static void* hSplashLib = NULL; |
|
1794 |
||
1795 |
void* SplashProcAddress(const char* name) { |
|
1796 |
if (!hSplashLib) { |
|
1797 |
hSplashLib = dlopen(SPLASHSCREEN_SO, RTLD_LAZY | RTLD_GLOBAL); |
|
1798 |
} |
|
1799 |
if (hSplashLib) { |
|
1800 |
void* sym = dlsym(hSplashLib, name); |
|
1801 |
return sym; |
|
1802 |
} else { |
|
1803 |
return NULL; |
|
1804 |
} |
|
1805 |
} |
|
1806 |
||
1807 |
void SplashFreeLibrary() { |
|
1808 |
if (hSplashLib) { |
|
1809 |
dlclose(hSplashLib); |
|
1810 |
hSplashLib = NULL; |
|
1811 |
} |
|
1812 |
} |
|
1813 |
||
1814 |
const char * |
|
1815 |
jlong_format_specifier() { |
|
1816 |
return "%lld"; |
|
1817 |
} |
|
1818 |
||
1819 |
/* |
|
1820 |
* Block current thread and continue execution in a new thread |
|
1821 |
*/ |
|
1822 |
int |
|
1823 |
ContinueInNewThread(int (JNICALL *continuation)(void *), jlong stack_size, void * args) { |
|
1824 |
int rslt; |
|
1825 |
#ifdef __linux__ |
|
1826 |
pthread_t tid; |
|
1827 |
pthread_attr_t attr; |
|
1828 |
pthread_attr_init(&attr); |
|
1829 |
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE); |
|
1830 |
||
1831 |
if (stack_size > 0) { |
|
1832 |
pthread_attr_setstacksize(&attr, stack_size); |
|
1833 |
} |
|
1834 |
||
1835 |
if (pthread_create(&tid, &attr, (void *(*)(void*))continuation, (void*)args) == 0) { |
|
1836 |
void * tmp; |
|
1837 |
pthread_join(tid, &tmp); |
|
7452
b3fa838286de
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
7410
diff
changeset
|
1838 |
rslt = (int)(intptr_t)tmp; |
7410 | 1839 |
} else { |
1840 |
/* |
|
1841 |
* Continue execution in current thread if for some reason (e.g. out of |
|
1842 |
* memory/LWP) a new thread can't be created. This will likely fail |
|
1843 |
* later in continuation as JNI_CreateJavaVM needs to create quite a |
|
1844 |
* few new threads, anyway, just give it a try.. |
|
1845 |
*/ |
|
1846 |
rslt = continuation(args); |
|
1847 |
} |
|
1848 |
||
1849 |
pthread_attr_destroy(&attr); |
|
1850 |
#else |
|
1851 |
thread_t tid; |
|
1852 |
long flags = 0; |
|
1853 |
if (thr_create(NULL, stack_size, (void *(*)(void *))continuation, args, flags, &tid) == 0) { |
|
1854 |
void * tmp; |
|
1855 |
thr_join(tid, NULL, &tmp); |
|
7452
b3fa838286de
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
7410
diff
changeset
|
1856 |
rslt = (int)(intptr_t)tmp; |
7410 | 1857 |
} else { |
1858 |
/* See above. Continue in current thread if thr_create() failed */ |
|
1859 |
rslt = continuation(args); |
|
1860 |
} |
|
1861 |
#endif |
|
1862 |
return rslt; |
|
1863 |
} |
|
1864 |
||
1865 |
/* Coarse estimation of number of digits assuming the worst case is a 64-bit pid. */ |
|
1866 |
#define MAX_PID_STR_SZ 20 |
|
1867 |
||
1868 |
void SetJavaLauncherPlatformProps() { |
|
1869 |
/* Linux only */ |
|
1870 |
#ifdef __linux__ |
|
1871 |
const char *substr = "-Dsun.java.launcher.pid="; |
|
1872 |
char *pid_prop_str = (char *)JLI_MemAlloc(strlen(substr) + MAX_PID_STR_SZ + 1); |
|
1873 |
sprintf(pid_prop_str, "%s%d", substr, getpid()); |
|
1874 |
AddOption(pid_prop_str, NULL); |
|
1875 |
#endif |
|
1876 |
} |