For pointer subtraction, the result is of type "ptrdiff_t". According to
the C11 standard (Committee Draft - April 12, 2011):
"When two pointers are subtracted, both shall point to elements of the
same array object, or one past the last element of the array object; the
result is the difference of the subscripts of the two array elements. The
size of the result is implementation-defined, and its type (a signed
integer type) is ptrdiff_t defined in the <stddef.h> header. If the result
is not representable in an object of that type, the behavior is
undefined."
In our codes, there are cases that the pointer subtraction is not
performed by pointers to elements of the same array object. This might
lead to potential issues, since the behavior is undefined according to C11
standard.
Also, since the size of type "ptrdiff_t" is implementation-defined. Some
static code checkers may warn that the pointer subtraction might underflow
first and then being cast to a bigger size. For example:
UINT8 *Ptr1, *Ptr2;
UINTN PtrDiff;
...
PtrDiff = (UINTN) (Ptr1 - Ptr2);
The commit will refine the pointer subtraction expressions by casting each
pointer to UINTN first and then perform the subtraction:
PtrDiff = (UINTN) Ptr1 - (UINTN) Ptr2;
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
To follow Shell spec 2.2, change "dh" to support dump from
protocol GUID and support "decode" parameter to dump the
GUID/name mapping.
Contributed-under: TianoCore Contribution Agreement 1.0
Cc: Jaben Carsey <jaben.carsey@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Signed-off-by: Chen A Chen <chen.a.chen@intel.com>
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
Minor changes to match help output notes for disconnect command
with UEFI Shell 2.2 specification document.
Few other formatting changes to fit the help output in 80x25 screen size.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Tapan Shah <tapandshah@hpe.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
As per ECR 1416, latest UEFI Shell 2.2 specification:
Define a behavior where 'disconnect -r' will disconnect drivers
from all devices but it will reconnect all consoles.
If -nc flag is used (e.g. 'disconnect -r -nc') then disconnect drivers
from all devices and don't reconnect consoles.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Tapan Shah <tapandshah@hpe.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
In shell spec, the usage of "Drvcfg" command is: drvcfg [-l XXX] [-c]
[-f <Type>|-v|-s] [DriverHandle [DeviceHandle [ChildHandle]]]
[-i filename] [-o filename]. The parameter number(doesn't include the flags)
cannot exceed 4, now we add this point to check whether using the command
correctly.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Tapan Shah <tapandshah@hpe.com>
Some of the libraries under ShellPkg/Library/ are only intended to be
loaded into the Shell by means of a NULL LibraryClass resolution, and
serve no other purpose. Since the Shell itself is a UEFI_APPLICATION, it
makes sense to set the module type of those libraries to UEFI_APPLICATION
as well.
This allows us to use different compiler flags for the Shell application
itself but also for the majority of its constituent parts that are built
separately via these libraries.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18310 6f19259b-4bc3-4df7-8a09-765794883524
Initialize local variable before it is passed into a function by reference.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: "Kinney, Michael D" <michael.d.kinney@intel.com>
Reviewed-by: Qiu Shumin <shumin.qiu@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18183 6f19259b-4bc3-4df7-8a09-765794883524
Updates to Driver1 profile commands response output.
Updating Driver1 profile commands source code to include command name as a prefix in error message.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Tapan Shah <tapandshah@hp.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16727 6f19259b-4bc3-4df7-8a09-765794883524
* Follow a consistent style
* Add consistent sections: NOTES, EXAMPLES, RETURN VALUES, etc.
* Wrap the text to fit in 80x25 formatted console output
* Remove excessive and very verbose examples output
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Tapan Shah <tapandshah@hp.com>
Reviewed-By: Jaben Carsey <jaben.carsey@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15994 6f19259b-4bc3-4df7-8a09-765794883524
- Update 'devices -sfo' format to match UEFI Shell 2.1 spec
- Update help output for easier viewing
- Update 'devices' output format for better alignment when there are many device handles:
T D
Y C I
P F A
CTRL E G G #P #D #C Device Name
==== = = = == == === =========================================================
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chris Phillips <chrisp@hp.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15884 6f19259b-4bc3-4df7-8a09-765794883524
- Update 'drivers -sfo' format to match UEFI Shell 2.1 spec
- Update help output for easier viewing
- Update 'drivers' output format for better alignment
T D
Y C I
P F A
DRV VERSION E G G #D #C DRIVER NAME IMAGE PATH
=== ======== = = = === === =================================== ==========
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chris Phillips <chrisp@hp.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15870 6f19259b-4bc3-4df7-8a09-765794883524
This function was not exposed outside the library and is not used internally.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jaben Carsey <Jaben.carsey@intel.com>
Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15353 6f19259b-4bc3-4df7-8a09-765794883524
Signed-off-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jaben Carsey <Jaben.carsey@intel.com>
1) ShellPkg/Library/UefiHandleParsingLib
a. UefiHandleParsingLib.c – ConvertHandleToHandleIndex() and ConvertHandleIndexToHandle()
i. Update to work correctly when handles are destroyed due to driver disconnect operations. Same handle index is never reused.
b. UefiHandleParsingLib.c – ParseHandleDatabaseByRelationshipWithType() and ParseHandleDatabaseForChildControllers()
i. Expand to handle Service Binding Protocol usage such as Network stack.
2) ShellPkg/Library/UefiShellDriver1CommandsLib
a. DevTree.c – Fix bug where the same handle is shown more than once.
b. Dh.c – Fix use of GetDriverName() and GetDriverImageName(). The status returned must always be evaluated.
c. Disconnect.c – Remove requirement that a handle being disconnected must support Device Path Protocol. This prevents driver model handles without device paths from being disconnected (i.e. Network Stack)
d. OpenInfo.c – Fix bug when showing open info about a ControllerHandle that has been destroyed due to a disconnect or an unload operation.
e. UefiShellDriver1CommandsLib.uni – Fix “drivers” command formatting when handle indexes have more than 2 characters.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13786 6f19259b-4bc3-4df7-8a09-765794883524
Hao Wu
Ruiyu Ni
Chen A Chen
Gary Lin
Tapan Shah
Dandan Bi
Mudusuru, Giri P
Qiu Shumin
Liming Gao
Jordan Justen
Samer El-Haj-Mahmoud
Ard Biesheuvel
Kinney, Michael D
Tapan Shah
Chris Phillips
Jaben Carsey
Eric Dong
jcarsey
jcarsey
mdkinney
ydong10