[2/3] Don't send EXCEPTION_EXECUTE_FAULT to Windows programs that didn't enable DEP. (try 3)

Michael Karcher wine at mkarcher.dialup.fu-berlin.de
Sat Aug 15 09:23:03 CDT 2009

This is what Windows does, too. If Data Execution Prevention is not enabled
for a process, Windows does not use the EXCEPTION_EXECUTE_FAULT flag, as
the program might be incompatible with it and expect EXCEPTION_READ_FAULT.

This fixes the non-functional single-stepping in Delphi,
as reported for example in

try3: Use NtQueryInformationProcess to find out whether DEP is enabled.
 dlls/ntdll/signal_i386.c     |    9 +++++++++
 dlls/ntdll/tests/exception.c |    6 +-----
 2 files changed, 10 insertions(+), 5 deletions(-)

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