- Use FT_Matrix instead of MATRIX in FONT_CACHE_ENTRY structure.
- Use FtMatrixFromMx and FT_Set_Transform instead of FtSetCoordinateTransform.
CORE-11848
Use an INT call stub and exit on the address after the stub instead or using iret (some BIOS code uses int / iret internally). This fixes the messed up display when trying to switch modes.
Addendum to commit de81021ba.
Otherwise, we get the following build error:
\ntoskrnl\kd64\kddata.c(532,5): error: initializer element is not a compile-time constant
PtrToUL64(RtlpBreakWithStatusInstruction),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
\ntoskrnl\kd64\kddata.c(526,26): note: expanded from macro 'PtrToUL64'
#define PtrToUL64(x) ((ULPTR64)(x))
^~~~~~~~~~~~
xml2: Import upstream release 2.10.0.
wine commit id 015491ab32742ace5218d37b1149c58803858214 by Alexandre Julliard <julliard@winehq.org>
Note: Upstream msxml3_test has switched away from WINE_NO_LONG_TYPES, so
I've kept the old printf format specifiers for now. Once we do a full
sync, we can get rid of __ROS_LONG64__ for this test and use them
unmodified.
If you ask why there are two sets of functions that do the same, it's
because this file (and the kdmain.c) will very soon some day be moved to
a transport dll, outside the kernel, and it will need these functions.
See this command's documentation:
https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/-dbgprint
and the section "DbgPrint buffer and the debugger"
https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/reading-and-filtering-debugging-messages#dbgprint-buffer-and-the-debugger
for more details.
- Loosely implement the function, based on our existing circular printout
buffers in kdio.c.
- Enable its usage in the KdpPrint() and KdpPrompt() functions.
Notice that this function will *only* capture the strings being sent **to**
the debugger, and not the strings the debugger itself produce. (This means
that we cannot use the KdPrintCircularBuffer as a replacement for our
KDBG dmesg one, for example...)
How to test:
Run ReactOS under WinDbg, and use the !dbgprint command to view the
buffer. You can also use the Memory Window, place yourself at the
address pointed by KdPrintCircularBuffer and KdPrintWritePointer, and
read its contents.
What you should observe:
Prior notice: The circular buffer in debug builds of ReactOS and Windows
is 0x8000 bytes large. In release builds, its size is down to 0x1000.
1- When you start e.g. the 2nd-stage GUI installation of ReactOS, going
past the initial "devices installation" and letting it stabilize on
the Welcome page, break into WinDbg and run the !dbgprint command. You
should notice that the end of its output is weirdly truncated, compared
to what has been actually emitted to the debug output. Comparing this
with the actual contents of the circular buffer (via Memory Window),
shows that the buffer contents is actually correct.
2- Copy all the text that has been output by the !dbgprint command and
paste it in an editor; count the number of all characters appearing +
newlines (only CR or LF), and observe that this number is "mysteriously"
equal to 16384 == 0x4000.
3- Continue running ReactOS installation for a little while, breaking back
back into WinDbg and looking at !dbgprint again. Its output seems to be
still stopping at the same place as before (but the actual buffer memory
contents shows otherwise). Continue running ROS installation, and break
into the debugger when ROS is about to restart. You should now observe
that the dbgprint buffer rolled over:
dd nt!KdPrintRolloverCount shows 1.
Carefully analysing the output of !dbgprint, however, you will notice
that it looks a bit garbage-y: the first part of the output is actually
truncated after 16384 characters, then you get a second part of the
buffer showing what ReactOS was printing while shutting down. Then
you get again what was shown at the top of the !dbgprint output.
(Of course, comparing with the actual contents of the circular buffer
in memory shows that its contents are fine...)
The reason of these strange observations, is because there is an intrinsic
bug in the !dbgprint command implementation (in kdexts.dll). Essentially,
it displays the contents of the circular buffer in two single dprintf()
calls: one for the "older" (bottom) part of the buffer:
[WritePointer, EndOfBuffer]
and one for the "newer" (upper) part of the buffer:
[CircularBuffer, WritePointer[ .
The first aspect of the bug (causing observation 3), is that those two
parts are not necessarily NULL-terminated strings (especially after
rollover), so for example, displaying the upper part of the buffer, will
potentially also display part of the buffer's bottom part.
The second aspect of the bug (explaining observations 1 and 2), is due
to the implementation of the dprintf() function (callback in dbgenv.dll).
There, it uses a fixed-sized buffer of size 0x4000 == 16384 characters.
Since the output of the circular buffer is not done by little chunks,
but by the two large parts, if any of those are larger than 0x4000 they
get truncated on display.
(This last observation is confirmed in a completely different context by
https://community.osr.com/discussion/112439/dprintf-s-max-string-length .)
But the underlying GCC stupidity is still there (15 years later).
However, enable it only in 32-bit GCC builds, not in 64-bits nor with MSVC.
See commit b9cd3f2d9 (r25845) for some details.
GCC is indeed still incapable of casting 32-bit pointers up to 64-bits,
when static-initializing arrays (**outside** a function) without emitting
the error:
"error: initializer element is not constant"
(which might somehow indicate it actually tries to generate executable
code for casting the pointers, instead of doing it at compile-time).
Going down the rabbit hole, other stupidities show up:
Our PVOID64 type and the related POINTER_64 (in 32-bit archs), or the
PVOID32 and POINTER_32 (in 64-bit archs), are all silently broken in
GCC builds, because the pointer size attributes __ptr64 and __ptr32,
which are originally MSVC-specific, are defined to nothing in _mingw.h.
(And similarly for the __uptr and __sptr sign-extension attributes.)
Clang and other sane ompilers has since then implemented those (enabled
with -fms-extensions), but not GCC. The closest thing that could exist
for GCC is to do:
#define __ptr64 __attribute__((mode(DI)))
in order to get a 64-bit-sized pointer type with
typedef void* __ptr64 PVOID64;
but even this does not work, with the error:
"error: invalid pointer mode 'DI'"
Choose the correct element of the KiUnexpectedRange array,
depending on the interrupt vector, the same way as here:
a2c6af0da4/ntoskrnl/ke/amd64/except.c (L77)
And guard KeConnectInterrupt() execution with dispatcher lock.
CORE-14922
- Line-wrapping is enabled with 'ESC[?7h' (the '?' was forgotten).
Notice that the following reference also shows it wrong:
https://www.cse.psu.edu/~kxc104/class/cse472/09s/hw/hw7/vt100ansi.htm
- Terminal type is actually queried with 'ESC Z' (VT52-compatible), or
with 'ESC[c' (VT100-compatible). The antediluvian CTRL-E ('\x05')
control code gives instead a user-configurable (usually empty) string,
so it's not reliable.
Also, we don't really care about the returned result, we just need to
know that one has been sent.
Cross-checked with online documentation:
* "Digital VT100 User Guide" (EK-VT100-UG-001) (1st edition, August 1978,
reviewed November 1978).
* https://www.real-world-systems.com/docs/ANSIcode.html
* https://geoffg.net/Downloads/Terminal/TerminalEscapeCodes.pdf
* https://invisible-island.net/xterm/ctlseqs/ctlseqs.html
* https://en.wikipedia.org/wiki/Enquiry_character
- Retrieve the size of the *controlling terminal* with escape sequences
only when it's a serial one: serial output is enabled *and* KDSERIAL
is set (i.e. user input through serial). See code for the actual logic
(the corresponding truth table is left as an exercise for the reader).
- Fix also a "Buffer" vs. "InBuffer" mismatch, that caused the whole
code to fail.
- For fallback terminal size values, use meaningful ones when SCREEN
is instead the controlling "terminal" (based on full-size BOOTVID
values).
- When echoing read characters during line-cooking, do direct output by
using KdpDprintf() instead of going through the heavy KdbpPrint() function.
This fixes some input artifacts like: 1. extra slowdowns due to
querying terminal size at each keypress, and 2. getting obnoxious
"--- Press q to abort ..." prompts in the middle of typing a long
comamnd because you are at the very bottom of the screen.
Makefile.am: this hasn't been updated in a while
security.c: WIN32 -> _WIN32 to keep the ROS-diff consistent with the rest
win32config.h/libxslt.h: remove unnecessary ROS-diff
xsltwin32config.h: this was missed in the 1.1.34 sync
xsltexports.h: mark a ROS-diff as such
CDefaultContextMenu::DoProperties provides a fallback call
to the property sheet testing the return value of the _DoCallback method,
which is ultimately the return value of SH_ShowDriveProperties().
SH_ShowDriveProperties() sometimes returns an HRESULT, however it is marked
as returning a BOOL. Then, DrivesContextMenuCallback() always handles this
result as an HRESULT.
Fix SH_ShowDriveProperties() to always return a BOOL as it is intended,
and in DrivesContextMenuCallback() handle the result accordingly.
CORE-18537
- Remove KdbInit() macro and directly use KdbpCliInit() (since the place
where it was used was already within an #ifdef KDBG block).
- Declare KdpKdbgInit() only when KDBG is defined, move its definition
into kdio.c and remove the legacy wrappers/kdbg.c file.
And in KdbInitialize(), set KdpInitRoutine directly to the former,
instead of using the KdpKdbgInit indirection.
- Don't reset KdComPortInUse in KdpDebugLogInit().
- Minor refactorings: KdpSerialDebugPrint -> KdpSerialPrint and make it
static; argument name "Message" -> "String", "StringLength" -> "Length".
