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comparison src/os/windows/vm/os_windows.cpp @ 1214:0fc941df6fb7

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6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter Summary: Add support for chaining Windows UnhandledExceptionFilter handlers Reviewed-by: kamg, dholmes, never, acorn, ikrylov
author dcubed
date Tue, 02 Feb 2010 10:37:32 -0700
parents 24fda36852ce
children f19bf22685cc
comparison
equal deleted inserted replaced
1184:7fbf850d87b7 1214:0fc941df6fb7
1 /* 1 /*
2 * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved. 2 * Copyright 1997-2010 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
140 void os::run_periodic_checks() { 140 void os::run_periodic_checks() {
141 return; 141 return;
142 } 142 }
143 143
144 #ifndef _WIN64 144 #ifndef _WIN64
145 // previous UnhandledExceptionFilter, if there is one
146 static LPTOP_LEVEL_EXCEPTION_FILTER prev_uef_handler = NULL;
147
145 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo); 148 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo);
146 #endif 149 #endif
147 void os::init_system_properties_values() { 150 void os::init_system_properties_values() {
148 /* sysclasspath, java_home, dll_dir */ 151 /* sysclasspath, java_home, dll_dir */
149 { 152 {
258 Arguments::set_endorsed_dirs(buf); 261 Arguments::set_endorsed_dirs(buf);
259 #undef ENDORSED_DIR 262 #undef ENDORSED_DIR
260 } 263 }
261 264
262 #ifndef _WIN64 265 #ifndef _WIN64
263 SetUnhandledExceptionFilter(Handle_FLT_Exception); 266 // set our UnhandledExceptionFilter and save any previous one
267 prev_uef_handler = SetUnhandledExceptionFilter(Handle_FLT_Exception);
264 #endif 268 #endif
265 269
266 // Done 270 // Done
267 return; 271 return;
268 } 272 }
1907 } 1911 }
1908 1912
1909 #ifndef _WIN64 1913 #ifndef _WIN64
1910 //----------------------------------------------------------------------------- 1914 //-----------------------------------------------------------------------------
1911 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { 1915 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) {
1912 // handle exception caused by native mothod modifying control word 1916 // handle exception caused by native method modifying control word
1913 PCONTEXT ctx = exceptionInfo->ContextRecord; 1917 PCONTEXT ctx = exceptionInfo->ContextRecord;
1914 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; 1918 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode;
1915 1919
1916 switch (exception_code) { 1920 switch (exception_code) {
1917 case EXCEPTION_FLT_DENORMAL_OPERAND: 1921 case EXCEPTION_FLT_DENORMAL_OPERAND:
1928 // Mask out pending FLT exceptions 1932 // Mask out pending FLT exceptions
1929 ctx->FloatSave.StatusWord &= 0xffffff00; 1933 ctx->FloatSave.StatusWord &= 0xffffff00;
1930 return EXCEPTION_CONTINUE_EXECUTION; 1934 return EXCEPTION_CONTINUE_EXECUTION;
1931 } 1935 }
1932 } 1936 }
1937
1938 if (prev_uef_handler != NULL) {
1939 // We didn't handle this exception so pass it to the previous
1940 // UnhandledExceptionFilter.
1941 return (prev_uef_handler)(exceptionInfo);
1942 }
1943
1933 return EXCEPTION_CONTINUE_SEARCH; 1944 return EXCEPTION_CONTINUE_SEARCH;
1934 } 1945 }
1935 #else //_WIN64 1946 #else //_WIN64
1936 /* 1947 /*
1937 On Windows, the mxcsr control bits are non-volatile across calls 1948 On Windows, the mxcsr control bits are non-volatile across calls