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Fix HandleInvalidParameter/HandlePureVirtualCall to dynamically lookup the RtlCaptureContext symbol so the Windows exception handler will continue to work on Windows 2000. Patch by Jim Mathies <jmathies@mozilla.com> and Timothy Nikkel <tnikkel@gmail.com>. r=ted

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git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@637 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
ted.mielczarek 2010-08-02 13:56:29 +00:00
parent 0b814c1d2b
commit 0fdc829d32
1 changed files with 48 additions and 26 deletions
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74
src/client/windows/handler/exception_handler.cc
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@ -37,6 +37,8 @@
#include "client/windows/handler/exception_handler.h"
#include "common/windows/guid_string.h"
typedef VOID (WINAPI *RtlCaptureContextPtr) (PCONTEXT pContextRecord);
namespace google_breakpad {
static const int kWaitForHandlerThreadMs = 60000;
@ -486,18 +488,28 @@ void ExceptionHandler::HandleInvalidParameter(const wchar_t* expression,
EXCEPTION_RECORD exception_record = {};
CONTEXT exception_context = {};
EXCEPTION_POINTERS exception_ptrs = { &exception_record, &exception_context };
RtlCaptureContext(&exception_context);
exception_record.ExceptionCode = STATUS_NONCONTINUABLE_EXCEPTION;
// We store pointers to the the expression and function strings,
// and the line as exception parameters to make them easy to
// access by the developer on the far side.
exception_record.NumberParameters = 3;
exception_record.ExceptionInformation[0] =
reinterpret_cast<ULONG_PTR>(&assertion.expression);
exception_record.ExceptionInformation[1] =
reinterpret_cast<ULONG_PTR>(&assertion.file);
exception_record.ExceptionInformation[2] = assertion.line;
EXCEPTION_POINTERS* exinfo = NULL;
RtlCaptureContextPtr fnRtlCaptureContext = (RtlCaptureContextPtr)
GetProcAddress(GetModuleHandleW(L"kernel32"), "RtlCaptureContext");
if (fnRtlCaptureContext) {
fnRtlCaptureContext(&exception_context);
exception_record.ExceptionCode = STATUS_NONCONTINUABLE_EXCEPTION;
// We store pointers to the the expression and function strings,
// and the line as exception parameters to make them easy to
// access by the developer on the far side.
exception_record.NumberParameters = 3;
exception_record.ExceptionInformation[0] =
reinterpret_cast<ULONG_PTR>(&assertion.expression);
exception_record.ExceptionInformation[1] =
reinterpret_cast<ULONG_PTR>(&assertion.file);
exception_record.ExceptionInformation[2] = assertion.line;
exinfo = &exception_ptrs;
}
bool success = false;
// In case of out-of-process dump generation, directly call
@ -505,10 +517,10 @@ void ExceptionHandler::HandleInvalidParameter(const wchar_t* expression,
if (current_handler->IsOutOfProcess()) {
success = current_handler->WriteMinidumpWithException(
GetCurrentThreadId(),
&exception_ptrs,
exinfo,
&assertion);
} else {
success = current_handler->WriteMinidumpOnHandlerThread(&exception_ptrs,
success = current_handler->WriteMinidumpOnHandlerThread(exinfo,
&assertion);
}
@ -564,18 +576,28 @@ void ExceptionHandler::HandlePureVirtualCall() {
EXCEPTION_RECORD exception_record = {};
CONTEXT exception_context = {};
EXCEPTION_POINTERS exception_ptrs = { &exception_record, &exception_context };
RtlCaptureContext(&exception_context);
exception_record.ExceptionCode = STATUS_NONCONTINUABLE_EXCEPTION;
// We store pointers to the the expression and function strings,
// and the line as exception parameters to make them easy to
// access by the developer on the far side.
exception_record.NumberParameters = 3;
exception_record.ExceptionInformation[0] =
reinterpret_cast<ULONG_PTR>(&assertion.expression);
exception_record.ExceptionInformation[1] =
reinterpret_cast<ULONG_PTR>(&assertion.file);
exception_record.ExceptionInformation[2] = assertion.line;
EXCEPTION_POINTERS* exinfo = NULL;
RtlCaptureContextPtr fnRtlCaptureContext = (RtlCaptureContextPtr)
GetProcAddress(GetModuleHandleW(L"kernel32"), "RtlCaptureContext");
if (fnRtlCaptureContext) {
fnRtlCaptureContext(&exception_context);
exception_record.ExceptionCode = STATUS_NONCONTINUABLE_EXCEPTION;
// We store pointers to the the expression and function strings,
// and the line as exception parameters to make them easy to
// access by the developer on the far side.
exception_record.NumberParameters = 3;
exception_record.ExceptionInformation[0] =
reinterpret_cast<ULONG_PTR>(&assertion.expression);
exception_record.ExceptionInformation[1] =
reinterpret_cast<ULONG_PTR>(&assertion.file);
exception_record.ExceptionInformation[2] = assertion.line;
exinfo = &exception_ptrs;
}
bool success = false;
// In case of out-of-process dump generation, directly call
@ -584,10 +606,10 @@ void ExceptionHandler::HandlePureVirtualCall() {
if (current_handler->IsOutOfProcess()) {
success = current_handler->WriteMinidumpWithException(
GetCurrentThreadId(),
&exception_ptrs,
exinfo,
&assertion);
} else {
success = current_handler->WriteMinidumpOnHandlerThread(&exception_ptrs,
success = current_handler->WriteMinidumpOnHandlerThread(exinfo,
&assertion);
}