Mercurial > hg > graal-jvmci-8
annotate src/os_cpu/linux_sparc/vm/vm_version_linux_sparc.cpp @ 22840:ec3982ff3fed
8062672: JVM crashes during GC on various asserts which checks that HeapWord ptr is an oop
Summary: Crashes were caused by not disabling UseMemSetInBOT as should be done on sparc. Added support for picking up blkinit as a platform feature if available on Linux sparc. This is needed to avoid enabling UseMemSetInBOT when running on this platform.
Reviewed-by: jmasa, brutisso
| author | sjohanss |
|---|---|
| date | Thu, 11 Dec 2014 09:56:57 +0100 |
| parents | a0ea36509b7b |
| children | 7985a33bac9c |
| rev | line source |
|---|---|
| 133 | 1 /* |
| 1972 | 2 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. |
| 133 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 133 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "runtime/os.hpp" | |
| 27 #include "vm_version_sparc.hpp" | |
| 133 | 28 |
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29 static bool cpuinfo_field_contains(const char* field, const char* value) { |
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30 char line[1024]; |
| 133 | 31 bool rv = false; |
| 32 | |
| 33 FILE* fp = fopen("/proc/cpuinfo", "r"); | |
| 34 if (fp == NULL) { | |
| 35 return rv; | |
| 36 } | |
| 37 | |
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38 while (fgets(line, sizeof(line), fp) != NULL) { |
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39 assert(strlen(line) < sizeof(line) - 1, "buffer line[1024] is too small."); |
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40 if (strncmp(line, field, strlen(field)) == 0) { |
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41 if (strstr(line, value) != NULL) { |
| 133 | 42 rv = true; |
| 43 } | |
| 44 break; | |
| 45 } | |
| 46 } | |
| 47 | |
| 48 fclose(fp); | |
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49 return rv; |
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50 } |
| 133 | 51 |
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52 static bool detect_niagara() { |
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53 return cpuinfo_field_contains("cpu", "Niagara"); |
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54 } |
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55 |
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56 static bool detect_blkinit() { |
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57 return cpuinfo_field_contains("cpucaps", "blkinit"); |
| 133 | 58 } |
| 59 | |
| 60 int VM_Version::platform_features(int features) { | |
| 61 // Default to generic v9 | |
| 62 features = generic_v9_m; | |
| 63 | |
| 64 if (detect_niagara()) { | |
| 65 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) tty->print_cr("Detected Linux on Niagara");) | |
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66 features = niagara1_m | T_family_m; |
| 133 | 67 } |
| 68 | |
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69 if (detect_blkinit()) { |
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70 features |= blk_init_instructions_m; |
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71 } |
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8062672: JVM crashes during GC on various asserts which checks that HeapWord ptr is an oop
sjohanss
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72 |
| 133 | 73 return features; |
| 74 } |