By using 'bits 16', we can write code for 16-bit use the actual
assembly syntax rather than 'DB' and sometimes writing code with
seemingly incorrect operands because we know it will run correctly
when the processor is running in 16-bit mode.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16023 6f19259b-4bc3-4df7-8a09-765794883524
http://www.nasm.us/doc/nasmdoc3.html#section-3.9
A local label is a label beginning with the period, and it's actual
name is prefixed by the previous non-local label.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16022 6f19259b-4bc3-4df7-8a09-765794883524
This is a translation of X64/Thunk16.asm to NASM.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16021 6f19259b-4bc3-4df7-8a09-765794883524
This is a translation of Ia32/Thunk16.asm to NASM.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16020 6f19259b-4bc3-4df7-8a09-765794883524
2. Add MODULE_UNI_FILE file that contains the localized Abstract and Description of a module.
a. Addresses an information gap between INF files and the UEFI Distribution Packaging Specification XML schema
b. There will be an associated update to UPT in BaseTools to consume MODULE_UNI_FILE and associated UNI file during UDP creation that performs the INF -> XML conversion.
c. There will be an associated update to UPT in BaseTools to produce MODULE_UNI_FILE and associated UNI file during UDP installation that performs the XML -> INF conversion.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Gao, Liming <liming.gao@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15918 6f19259b-4bc3-4df7-8a09-765794883524
1. Usage information in INF file comment blocks are either incomplete or incorrect.
This includes usage information for Protocols/PPIs/GUIDs/PCDs/HOBs/Events/BootModes.
The syntax for usage information in comment blocks is defined in the EDK II Module Information (INF) Specification
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Gao, Liming <liming.gao@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15917 6f19259b-4bc3-4df7-8a09-765794883524
Liming proposed different changes compare to the latest patch.
This commit ensures the changes goes in his direction.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Andrew Fish <afish@apple.com>
Signed-off-by: Olivier Martin <olivier.martin@arm.com
Reviewed-by: Gao, Liming <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15866 6f19259b-4bc3-4df7-8a09-765794883524
This library only support GCC, RVCT and XCode for now.
The new files were missing from SVN rev15851.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Andrew Fish <afish@apple.com>
Signed-off-by: Olivier Martin <olivier.martin@arm.com
Reviewed-by: Gao, Liming <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15852 6f19259b-4bc3-4df7-8a09-765794883524
- The edk2 coding style prefers each variable declaration to stand on
its own line.
- Internal linkage (ie. STATIC) functions have caused problems with
source level debugging before, so we generally avoid STATIC in MdePkg.
- Even forward declarations of functions should carry full comment
blocks.
- Nullity checks in controlling expressions should be spelled out
explicitly, as (Ptr != NULL).
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15843 6f19259b-4bc3-4df7-8a09-765794883524
VS2005 reports the following build failure:
BaseOrderedCollectionRedBlackTreeLib.c(151) : warning C4244:
'return' : conversion from 'int' to 'BOOLEAN', possible loss of data
BaseOrderedCollectionRedBlackTreeLib.c(840) : warning C4244:
'return' : conversion from 'int' to 'BOOLEAN', possible loss of data
This is incorrect. The ISO C standard guarantees that the expressions in
question can only return values 0 and 1, both of which can be represented
by BOOLEAN (== UINT8, == unsigned char).
Silence the incorrect warnings with explicit casts to BOOLEAN.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15813 6f19259b-4bc3-4df7-8a09-765794883524
Gcc-4.4 reports the following build failure:
BaseOrderedCollectionRedBlackTreeLib.c:
In function 'OrderedCollectionInsert':
BaseOrderedCollectionRedBlackTreeLib.c:586:
error: 'Result' may be used uninitialized in this function
This is incorrect. There are two areas of use of Result to consider:
- In the very first while loop. The warning is likely not about this code
area, because Result is assigned directly before use.
- The last use of Result in the function. The build warning / error is
incorrect. For Result to be uninitialized at that point, the very first
while loop must not have been entered at all (because that loop assigns
a value to Result). However, if that loop is never entered, then Parent
is still NULL. And Parent==NULL implies that the use of Result is never
reached, because we jump to the Done label just before it.
Assign an irrelevant value of 0 to Result at the beginning of the function
in order to silence the incorrect warning.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15812 6f19259b-4bc3-4df7-8a09-765794883524
edk2 should have a fast and easy-to-use associative array (a dictionary)
type.
Red-black trees have O(log(n)) worst case time complexity for lookup,
insertion, and deletion (where n is the number of nodes in the tree). They
support minimum and maximum lookup with the same time complexity, hence
red-black trees double as priority queues as well.
Given an iterator to a red-black tree node, getting the next or previous
node (which corresponds to the ordered successor or the predecessor,
respectively, according to the user-defined ordering) is O(log(n)) as
well.
The code reflects the Binary Search Trees and Red-Black Trees chapters of
Introduction to Algorithms, by Cormen, Leiserson, Rivest. One point where
the implementation diverges is the first phase of the Delete() operation.
During that phase, the book's algorithm copies the key and other business
*contents* of the successor node (in case the successor node is affected),
and releases the successor node (instead of the node that the user
requested to delete).
While semantically correct, this would break the above iterator validity
guarantee. This implementation replaces the copying of business contents
between nodes with suitable relinking of nodes, so that all iterators
(except the one whose deletion is being requested) remain valid.
I had written this code originally in approx. 2002. I personally own the
copyright of that version and am hereby relicensing it to Red Hat, under
the BSDL. I had used the original code in a few personal projects since,
for example in the lbzip2-0.x parallel (de)compressor, and now I've ported
the library to edk2. Both during the original implementation and now
during the porting I verified all the cases and their proofs as rigorously
as I could, on paper. (NB, I couldn't find any errors in the 2002 code
now.)
During the porting to edk2, I documented all those cases in code comments
as well (at least half of the source is documentation). These comments are
not blind copies of diagrams from the Algorithms book, nor are they copies
from my original code -- I've done them all fresh now, and I've only
matched the results against the book. Reviewers are invited to sit down
with a pen, some paper, the book, and the code.
The Validate() function verifies the internal red-black properties of the
tree. This function helps with unit testing, and is only invoked when
requested with the PcdValidateOrderedCollection feature flag.
A note about diagrams: edges represented by backslash (\) characters are
often written as "\_", ie. with a following underscore. This is because
line-trailing backslashes are processed very early in compilation (in
translation phase 2), "splicing physical source lines to form logical
source lines". Since the edk2 coding style requires "//" comments for such
documentation, a trailing backslash would splice the next physical line
into the "scope" of the comment. To prevent this, trailing backslashes are
defanged by appending underscores, which should be visually bearable.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15791 6f19259b-4bc3-4df7-8a09-765794883524
The overlap may happen when the address of Destination in
UnicodeStrToAsciiStr() or Source in AsciiStrToUnicodeStr()
is not two bytes aligned.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15665 6f19259b-4bc3-4df7-8a09-765794883524
2. PeiCore will call this API to migrate the PEI Services Table pointer from temporary RAM to permanent RAM.
Signed-off-by: Gao, Liming <liming.gao@intel.com>
Reviewed-by: Kinney, Michael D <michael.d.kinney@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15114 6f19259b-4bc3-4df7-8a09-765794883524
Let the comments to be aligned with code behavior for LibPcdSetX APIs.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15056 6f19259b-4bc3-4df7-8a09-765794883524
2. Add support to find section by instance rather than only 0 at PEI phase.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14763 6f19259b-4bc3-4df7-8a09-765794883524
Add a new instance of DevicePathLib which tries to locate the protocol and if it's not found, it uses the internal functions.
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14504 6f19259b-4bc3-4df7-8a09-765794883524
1.Change function name to avoid name conflict.
2.Refine check for Pe Image.
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13220 6f19259b-4bc3-4df7-8a09-765794883524
Signed-off-by: Li Elvin <elvin.li@intel.com>
Reviewed-by: Li Kevin <kevin.y.li@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13183 6f19259b-4bc3-4df7-8a09-765794883524
This function supports loading via these interfaces, in order:
* gEfiFirmwareVolume2ProtocolGuid
* gEfiSimpleFileSystemProtocolGuid
* gEfiLoadFile2ProtocolGuid
* gEfiLoadFileProtocolGuid
Previously, if a device path supported any of these interfaces,
it would only check that interface. (If it failed to load via
that interface, it would not move on and check the others.)
This change causes the other interfaces to still be checked if
the previous ones fail.
Signed-off-by: jljusten
Reviewed-by: mdkinney
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12761 6f19259b-4bc3-4df7-8a09-765794883524
The registers used to passed arguments to the DxeCore entrypoint in the inline
assembly function InternalSwitchStackAsm() where switched at compilation time.
This change replaces the inline assembly by a pure assembly source file to
avoid this kind of optimization.
Note: Inline assembly is generally not recommanded in system programming.
Reviewed-by: lgao4
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12674 6f19259b-4bc3-4df7-8a09-765794883524
Per Rui's review of the patch _16GdtrBase is a label that is patched by C code so it does require initialization.
approved-by: andrewfish
reviewed-by: jljusten
reviewed-by: rsun3
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12515 6f19259b-4bc3-4df7-8a09-765794883524
Implement these functions in the UefiLib instance.
Add 2 functions to PrintLib library class: SPrintLengthAsciiFormat and SPrintLength.
Implement these functions in the BasePrintLib instance and the DxePrintLib2Protocol instance.
Signed-off-by: jcarsey
Reviewed-by: jljusten
Reviewed-by: geekboy15a
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12081 6f19259b-4bc3-4df7-8a09-765794883524
Reverted changes of data areas from .long back to .space 4. This was done
because the size of .long is based off of .int and may vary. Using a fixed size
is required because these values are for patching code. Also note that .space
will automatically initialize the data to zero. Not initializing all values to
zero was causing the hang/reset.
Signed-off-by: geekboy15a
Reviewed-by: darylm503
Reviewed-by: jljusten
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12079 6f19259b-4bc3-4df7-8a09-765794883524
The code was using ARMv6 co-processor reg, that is a no-op on ARMv7. WFI is the instruction on ARMv7.
signed-off-by: andrewfish
reviewed-by: mdkinney
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12035 6f19259b-4bc3-4df7-8a09-765794883524
Fixed issues with X64 clang, and also make StackSwitch push a zero on the new stack to prevent a stack unwind into memory that is no longer valid.
signed-off-by: andrewfish
reviewed-by: lgao4
reviewed-by: mdkinney
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12007 6f19259b-4bc3-4df7-8a09-765794883524
1) Define new DebugPrintErrorLevelLib that produces an API that DebugPrint() APIs in DebugLib implementations can use to retrieve the current mask for filtering DebugPrint() statements.
2) Add a BASE type implementation of the DebugPrintErrorLevelLib that directly accessed PcdDebugPrintErrorLevel to provide backward compatibility with the current EDK II DebugLib behavior.
3) Update description of the DebugPrint() API in the DebugLib to describe the new dependency on the DebugPrintErrorLevelLib that replaces the prior dependency in the PcdDebugPrintErrorLevel PCD.
4) Update the comments in BaseDebugLibNull to match (3).
5) Update BaseDebugLibSerialPort to use DebugPrintErrorLevelLib instead of the PcdDebugPrintErrorLevel PCD.
6) Update UefiDebugLinConOut to use DebugPrintErrorLevelLib instead of the PcdDebugPrintErrorLevel PCD.
7) Update UefiDebugLibStdErr to use DebugPrintErrorLevelLib instead of the PcdDebugPrintErrorLevel PCD.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11365 6f19259b-4bc3-4df7-8a09-765794883524
Jordan Justen
Gao, Liming
Andrew Fish
Eric Dong
Laszlo Ersek
lhauch
Qiu Shumin
Star Zeng
Harry Liebel
Ruiyu Ni
Tian, Feng
jyao1
Tian, Hot
Ruiyu Ni
David Woodhouse
Bob C Feng
Elvin Li
Mars Lin
Olivier Martin
Jeff Fan
Gary Ching-Pang Lin
lgao4
niruiyu
ydong10
li-elvin
lzeng14
erictian
jyao1
rsun3
hhtian
jljusten
oliviermartin
andrewfish
xdu2
jcarsey
geekboy15a
mdkinney