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comparison src/os/windows/vm/os_windows.cpp @ 4872:aa3d708d67c4

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7141200: log some interesting information in ring buffers for crashes Reviewed-by: kvn, jrose, kevinw, brutisso, twisti, jmasa
author never
date Wed, 01 Feb 2012 07:59:01 -0800
parents d7e3846464d0
children 379b22e03c32
comparison
equal deleted inserted replaced
4871:f067b4e0e04b 4872:aa3d708d67c4
1 /* 1 /*
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. 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.
2086 #ifdef _M_IA64 2086 #ifdef _M_IA64
2087 assert(0, "Fix Handle_IDiv_Exception"); 2087 assert(0, "Fix Handle_IDiv_Exception");
2088 #elif _M_AMD64 2088 #elif _M_AMD64
2089 PCONTEXT ctx = exceptionInfo->ContextRecord; 2089 PCONTEXT ctx = exceptionInfo->ContextRecord;
2090 address pc = (address)ctx->Rip; 2090 address pc = (address)ctx->Rip;
2091 NOT_PRODUCT(Events::log("idiv overflow exception at " INTPTR_FORMAT , pc));
2092 assert(pc[0] == 0xF7, "not an idiv opcode"); 2091 assert(pc[0] == 0xF7, "not an idiv opcode");
2093 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); 2092 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands");
2094 assert(ctx->Rax == min_jint, "unexpected idiv exception"); 2093 assert(ctx->Rax == min_jint, "unexpected idiv exception");
2095 // set correct result values and continue after idiv instruction 2094 // set correct result values and continue after idiv instruction
2096 ctx->Rip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes 2095 ctx->Rip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes
2098 ctx->Rdx = (DWORD)0; // remainder 2097 ctx->Rdx = (DWORD)0; // remainder
2099 // Continue the execution 2098 // Continue the execution
2100 #else 2099 #else
2101 PCONTEXT ctx = exceptionInfo->ContextRecord; 2100 PCONTEXT ctx = exceptionInfo->ContextRecord;
2102 address pc = (address)ctx->Eip; 2101 address pc = (address)ctx->Eip;
2103 NOT_PRODUCT(Events::log("idiv overflow exception at " INTPTR_FORMAT , pc));
2104 assert(pc[0] == 0xF7, "not an idiv opcode"); 2102 assert(pc[0] == 0xF7, "not an idiv opcode");
2105 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); 2103 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands");
2106 assert(ctx->Eax == min_jint, "unexpected idiv exception"); 2104 assert(ctx->Eax == min_jint, "unexpected idiv exception");
2107 // set correct result values and continue after idiv instruction 2105 // set correct result values and continue after idiv instruction
2108 ctx->Eip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes 2106 ctx->Eip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes
5329 _OpenProcessToken != NULL && 5327 _OpenProcessToken != NULL &&
5330 _LookupPrivilegeValue != NULL; 5328 _LookupPrivilegeValue != NULL;
5331 } 5329 }
5332 5330
5333 #endif 5331 #endif
5334