In this patch a small application is added to AppPkg, with the following
two goals:
- demonstrate how to use OrderedCollectionLib,
- allow users to test and "fuzz" BaseOrderedCollectionRedBlackTreeLib in
particular, entering API "commands" interactively, or providing them
from a script file.
A shell script is included that generates such an API command script.
Speaking about BaseOrderedCollectionRedBlackTreeLib specifically,
OrderedCollectionTest validates the internal red-black properties of the
tree after each read-write operation by setting the
PcdValidateOrderedCollection feature flag to TRUE.
The OrderedCollectionTest application's debugging environment is strictly
specified in the DSC file, because OrderedCollectionTest is entirely
useless for unit testing without full ASSERT() enablement.
The OrderedCollectionTest application deliberately doesn't follow the edk2
coding style in the following:
- const vs. CONST,
- void vs. VOID,
- assert() vs. ASSERT(),
- calloc() and free() vs. AllocateZeroPool() and FreePool(),
- integer types.
This is because OrderedCollectionTest is a standard C application, not a
UEFI application per se. In particular it relies on stdio. INTN, EFIAPI
and CONST VOID are used only in two places, where we provide the
comparator callbacks to OrderedCollectionLib. Proper range checking is
ensured for integers.
The application takes command input from stdin or a file (if the user
requests it), sends command output to stdout or a file (if the user
requests it), prints debug output to the console (as other AppPkg
applications do when debugging is enabled for them), and prints
diagnostics to stderr (like well behaved standard C programs should).
Input/output selection is implemented manually because the old shell
doesn't support input redirection at all, and because the new shell's
input redirection does not co-operate with fgets() for the time being.
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@15792 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
This library class provides a set of APIs to manage an ordered collection
of items:
- Init(),
- UnInit(),
- Insert(),
- Delete(),
- IsEmpty(),
- Next(),
- Prev(),
- Min(),
- Max(),
- Find(),
- UserStruct().
There are many ways to implement an ordered collection. Depending on the
frequency of the different actions, different internal implementations may
have different performance, memory overhead, or code size.
Developers can select the library instance for a platform or module in
their DSC files that meets the needs of that platform or module.
Commit-message-from: "Kinney, Michael D" <michael.d.kinney@intel.com>
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@15790 6f19259b-4bc3-4df7-8a09-765794883524
The member "fext._ub" is a structure (of type "struct __sbuf"), and the
current initializer triggers
StdLib/LibC/Stdio/vswscanf.c: In function 'vswscanf':
StdLib/LibC/Stdio/vswscanf.c:75:10: error: missing braces around
initializer [-Werror=missing-braces]
StdLib/LibC/Stdio/vswscanf.c:75:10: error: (near initialization for
'fext._ub') [-Werror=missing-braces]
cc1: all warnings being treated as errors
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@15786 6f19259b-4bc3-4df7-8a09-765794883524
The member "u.L" is an array, and the current initializer triggers
StdLib/LibC/gdtoa/strtof.c: In function '_strtof':
StdLib/LibC/gdtoa/strtof.c:53:9: error: missing braces around
initializer [-Werror=missing-braces]
StdLib/LibC/gdtoa/strtof.c:53:9: error: (near initialization for
'u.L') [-Werror=missing-braces]
cc1: all warnings being treated as errors
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@15785 6f19259b-4bc3-4df7-8a09-765794883524
This library has one depex of SerialPortPpi. Then, the PEIM linked it has this depex so that it is dispatched after SerialPortPpi is installed. SerialPortPpi notifies the platform initialization done, then serial port will work.
Contributed-under: TianoCore Contribution Agreement 1.0
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@15782 6f19259b-4bc3-4df7-8a09-765794883524
If GUIDED section has AUTH attribute only, DxeCore may wrongly set its AuthenticationStatus to 0 when its matched GUIDED extraction handler is not installed and Auth data is not verified. For this case, the return AuthenticationStatus should be EFI_AUTH_STATUS_NOT_TESTED.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Gao, Liming <liming.gao@intel.com>
Reviewed-by: Kinney, Michael D <michael.d.kinney@intel.com>
Reviewed-by: Yao, Jiewen <jiewen.yao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15781 6f19259b-4bc3-4df7-8a09-765794883524
Contributed-under: TianoCore Contribution Agreement 1.0
Signed off by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed by: Chris Li <chris.li@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15775 6f19259b-4bc3-4df7-8a09-765794883524
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Andrew Fish <afish@apple.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15774 6f19259b-4bc3-4df7-8a09-765794883524
Contributed-under: TianoCore Contribution Agreement 1.0
Signed off by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed by: Eric Dong <eric.dong@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15772 6f19259b-4bc3-4df7-8a09-765794883524
This patch replaces StrCpy with StrnCpy or refactors out the usage of StrCpy through some other means.
This patch replaces StrCat with StrnCat or refactors out the usage of StrCat through some other means.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15771 6f19259b-4bc3-4df7-8a09-765794883524
Contributed-under: TianoCore Contribution Agreement 1.0
Signed off by: Long Qin <qin.long@intel.com>
Reviewed by: Eric Dong <eric.dong@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15768 6f19259b-4bc3-4df7-8a09-765794883524
The changes are:
1. Add RVCT ARM build target
2. Add suppression of warnings to get openssl building (1295,550,1293,111,68,177,223,144,513,188)
3. Remove architectures that RVCT cannot build for (IA32, X64, and IPF)
4. Add the -DOPENSSL_NO_MD2 flag to prevent link errors from MD2 references; the comments in the .inf assumes that this flag exists but it wasn’t actually set
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eugene Cohen <eugene@hp.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Long Qin <qin.long@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15767 6f19259b-4bc3-4df7-8a09-765794883524
Contributed-under: TianoCore Contribution Agreement 1.0
Signed off by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed by: Eric Dong <eric.dong@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15766 6f19259b-4bc3-4df7-8a09-765794883524
When running Enquire.efi, several errors similar to the following are produced:
Maximum exponent = 128
Maximum number = 3.40282347e+38
*** WARNING: Possibly bad output from printf above
expected value around 3.40282347e38, bit pattern:
11111111 11111111 01111111 01111111
sscanf gave -inf, bit pattern:
00000000 00000000 10000000 11111111
difference= inf
Overflow doesn’t seem to generate a trap
The memory allocation tests will also fail, sometimes leaving all available memory consumed.
The correct output in the above example is:
Maximum exponent = 128
Maximum number = 3.40282347e+38
Overflow doesn't seem to generate a trap
The root cause is that all operations on values of Long or ULong type, within the gdtoa library, must be 32-bit operations. A previous change replaced the Long and ULong definitions with INTN and UINTN, respectively. While this is correct for a lot of Linux and NetBSD code, it was not correct for this library.
This fix reverts the definitions of ULong and Long back to 32-bit types.
A descriptive comment has also been added to the U union.
Additional white-space has been added to tidy up the definitions of the word0 and word1 macros.
Verified with Enquire.efi and the ISO/IEC C Library compliance Validation Suite.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Daryl McDaniel <daryl.mcdaniel@intel.com>
Reviewed-by: Jaben Carsey <Jaben.carsey@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15765 6f19259b-4bc3-4df7-8a09-765794883524
Eliminate duplicate GUID definition.
Do explicit data cast.
Use StrnCpy instead of StrCpy.
Update GCC assembly.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed off by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed by: Eric Dong <eric.dong@intel.com>
Reviewed by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15762 6f19259b-4bc3-4df7-8a09-765794883524
Contributed-under: TianoCore Contribution Agreement 1.0
Signed off by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed by: Eric Dong <eric.dong@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15751 6f19259b-4bc3-4df7-8a09-765794883524
The SMC helper functions were buggy as they were assuming that
the values in x1-x7 registers were preserved across an SMC call,
which is not the case. This patch fixes this issue.
It also simplifies the code by providing only 1 version of the SMC
helper function. We used to have 4 versions depending on the number
of arguments. The problem with this approach was that the number of
arguments also dictated the number of return values, which is
completely unrelated. E.g. you can have an SMC call that takes
1 argument but returns 4 values.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15748 6f19259b-4bc3-4df7-8a09-765794883524
relocations
- ADR_PREL_LO21: support for loading a PC relative label offset.
- R_AARCH64_CONDBR19: support for conditional branch instruction (ELF64 code: 280).
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Harry Liebel <Harry.Liebel@arm.com>
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
Reviewed-by: Yingke Liu <yingke.d.liu@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15745 6f19259b-4bc3-4df7-8a09-765794883524
Ruiyu Ni
Laszlo Ersek
Kinney, Michael D
Elvin Li
jyao1
Star Zeng
Gao, Liming
Chen Fan
Jeff Fan
Eric Dong
Andrew Fish
Fu, Siyuan
Jaben Carsey
Feng Tian
Qiu Shumin
qlong
Eugene Cohen
Daryl McDaniel
Olivier Martin
Harry Liebel