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Debugger: DebugBreakApi is always used under 32bit Windows

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Change-Id: Iacd672cf38f698912609aeb2d3e7d54101bcfe0d
Reviewed-by: hjk <qthjk@ovi.com>
This commit is contained in:
David Schulz
2012-03-02 12:25:38 +01:00
committed by hjk
parent 41cbb6cdee
commit 12bf40dbc5
1 changed files with 30 additions and 16 deletions
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46
src/plugins/debugger/procinterrupt.cpp
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@@ -37,7 +37,6 @@
#include <QProcess> // makes kill visible on Windows.
#include <QFile>
#include <QDir>
using namespace Debugger::Internal;
static inline QString msgCannotInterrupt(int pid, const QString &why)
@@ -99,23 +98,38 @@ bool Debugger::Internal::interruptProcess(int pID, int engineType, QString *erro
// Try DebugBreakProcess if either Qt Creator is compiled 64 bit or
// both Qt Creator and application are 32 bit.
#ifdef Q_OS_WIN64
Q_UNUSED(engineType)
// Qt-Creator compiled 64 bit: Always use DebugBreakProcess.
const bool useDebugBreakApi = true;
// Qt-Creator compiled 64 bit
// Windows must be 64 bit
// CDB 64 bit: use DebugBreakProcess for 32 an 64 bit processes.
// CDB 32 bit: untested
// GDB: not supported
const bool useDebugBreakApi= true;
#else
// Qt-Creator compiled 32 bit:
// CDB: If Qt-Creator is a WOW64 process (meaning a 32bit process
// running in emulation), always use win64interrupt.exe for native
// 64 bit processes and WOW64 processes. While DebugBreakProcess()
// works in theory for other WOW64 processes, the break appears
// as a WOW64 breakpoint, which CDB is configured to ignore since
// it also triggers on module loading.
// GDB: Use win64interrupt for native 64bit processes only (it fails
// for WOW64 processes.
static const bool hostIsWow64Process = isWow64Process(GetCurrentProcess());
const bool useDebugBreakApi = engineType == CdbEngineType ?
!hostIsWow64Process :
!isWow64Process(inferior);
bool useDebugBreakApi;
if (isWow64Process(GetCurrentProcess())) {
// Windows is 64 bit
if (engineType == CdbEngineType) {
// CDB 64 bit: If Qt-Creator is a WOW64 process (meaning a 32bit process
// running in emulation), always use win64interrupt.exe for native
// 64 bit processes and WOW64 processes. While DebugBreakProcess()
// works in theory for other WOW64 processes, the break appears
// as a WOW64 breakpoint, which CDB is configured to ignore since
// it also triggers on module loading.
// CDB 32 bit: untested
useDebugBreakApi = false;
} else {
// GDB: Use win64interrupt for native 64bit processes only (it fails
// for WOW64 processes.
useDebugBreakApi = isWow64Process(inferior);
}
} else {
// Windows is 32 bit
// All processes are 32 bit, so DebugBreakProcess can be used in all cases.
useDebugBreakApi = true;
}
#endif
if (useDebugBreakApi) {
ok = DebugBreakProcess(inferior);