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A warning is sent because `std::distance()` returns a signed type so
`CmpHelperEQ()` gets instantiated into a function that compares
differently signed arguments.
Differential Revision: https://reviews.llvm.org/D72632
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The main motivation for this is better failure messages in unit tests.
Split off from D70394.
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Summary:
This will allow updating MinidumpYAML and LLDB to use this common
definition.
Reviewers: labath, jhenderson, clayborg
Reviewed By: labath
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68656
llvm-svn: 375239
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Summary:
This patch adds the definitions of the constants and structures
necessary to interpret the MemoryInfoList minidump stream, as well as
the object::MinidumpFile interface to access the stream.
While the code is fairly simple, there is one important deviation from
the other minidump streams, which is worth calling out explicitly.
Unlike other "List" streams, the size of the records inside
MemoryInfoList stream is not known statically. Instead it is described
in the stream header. This makes it impossible to return
ArrayRef<MemoryInfo> from the accessor method, as it is done with other
streams. Instead, I create an iterator class, which can be parameterized
by the runtime size of the structure, and return
iterator_range<iterator> instead.
Reviewers: amccarth, jhenderson, clayborg
Subscribers: JosephTremoulet, zturner, markmentovai, lldb-commits, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68210
llvm-svn: 374051
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Summary:
the stream format is exactly the same as for ThreadList and ModuleList
streams, only the entry types are slightly different, so the changes in
this patch are just straight-forward applications of established
patterns.
Reviewers: amccarth, jhenderson, clayborg
Subscribers: markmentovai, lldb-commits, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D61885
llvm-svn: 360908
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Summary:
The stream contains the list of threads belonging to the process
described by the minidump. Its structure is the same as the ModuleList
stream, and in fact, I have generalized the ModuleList reading code to
handle this stream too.
Reviewers: amccarth, jhenderson, clayborg
Subscribers: llvm-commits, lldb-commits, markmentovai, zturner
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D61064
llvm-svn: 359762
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Summary:
The ModuleList stream consists of an integer giving the number of
entries in the list, followed by the list itself. Each entry in the list
describes a module (dynamically loaded objects which were loaded in the
process when it crashed (or when the minidump was generated).
The code for reading the list is relatively straight-forward, with a
single gotcha. Some minidump writers are emitting padding after the
"count" field in order to align the subsequent list on 8 byte boundary
(this depends on how their ModuleList type was defined and the native
alignment of various types on their platform). Fortunately, the minidump
format contains enough redundancy (in the form of the stream length
field in the stream directory), which allows us to detect this situation
and correct it.
This patch just adds the ability to parse the stream. Code for
conversion to/from yaml will come in a follow-up patch.
Reviewers: zturner, amccarth, jhenderson, clayborg
Subscribers: jdoerfert, markmentovai, lldb-commits, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D60121
llvm-svn: 357897
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Summary:
Strings in minidump files are stored as a 32-bit length field, giving
the length of the string in *bytes*, which is followed by the
appropriate number of UTF16 code units. The string is also supposed to
be null-terminated, and the null-terminator is not a part of the length
field. This patch:
- adds support for reading these strings out of the minidump file (this
implementation does not depend on proper null-termination)
- adds support for writing them to a minidump file
- using the previous two pieces implements proper (de)serialization of
the CSDVersion field of the SystemInfo stream. Previously, this was
only read/written as hex, and no attempt was made to access the
referenced string -- now this string is read and written correctly.
The changes are tested via yaml2obj|obj2yaml round-trip as well as a
unit test which checks the corner cases of the string deserialization
logic.
Reviewers: jhenderson, zturner, clayborg
Subscribers: llvm-commits, aprantl, markmentovai, amccarth, lldb-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59775
llvm-svn: 357749
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The first problem was a use-after-free in the tests (detected by asan
bots). The temporary array created for the "create" call is guaranteed
to live only until the end of the statement. The fix there is to store
the test data in a local variable to ensure it has the right lifetime
The second issue is broken BUILD_SHARED_LIBS build, which I fix by
adding the appropriate BinaryFormat dependency to the Object unit tests.
llvm-svn: 356655
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Summary:
This patch adds basic support for reading minidump files. It contains
the definitions of various important minidump data structures (header,
stream directory), and of one minidump stream (SystemInfo). The ability
to read other streams will be added in follow-up patches. However, all
streams can be read even now as raw data, which means lldb's minidump
support (where this code is taken from) can be immediately rebased on
top of this patch as soon as it lands.
As we don't have any support for generating minidump files (yet), this
tests the code via unit tests with some small handcrafted binaries in
the form of c char arrays.
Reviewers: Bigcheese, jhenderson, zturner
Subscribers: srhines, dschuff, mgorny, fedor.sergeev, lemo, clayborg, JDevlieghere, aprantl, lldb-commits, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59291
llvm-svn: 356652
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to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
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llvm-svn: 295188
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Unit tests needed to check on the endianness of the host platform. (Test was failing for big endian hosts).
llvm-svn: 295174
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Changed format specifiers to use format macro constant for pointer type.
Moved width part of format specifier in the correct place for formatting members a and b.
Added a unit test to confirm the output.
Differential Revision: https://reviews.llvm.org/D28957
llvm-svn: 295173
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Sometimes, llvm-symbolizer gives wrong results due to incorrect sizes of some symbols. The reason for that was an incorrectly sorted array in computeSymbolSizes. The comparison function used subtraction of unsigned types, which is incorrect. Let's change this to return explicit -1 or 1.
Differential Revision: https://reviews.llvm.org/D26537
llvm-svn: 287028
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Now that we have a lib/MC/MCAnalysis, the dependency was there just because
of two helper classes. Move the two over to MC.
This will allow IRObjectFile to parse inline assembly.
llvm-svn: 212248
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We already do this for shstrtab, so might as well do it for strtab. This
extracts the string table building code into a separate class. The idea
is to use it for other object formats too.
I mostly wanted to do this for the general principle, but it does save a
little bit on object file size. I tried this on a clang bootstrap and
saved 0.54% on the sum of object file sizes (1.14 MB out of 212 MB for
a release build).
Differential Revision: http://reviews.llvm.org/D3533
llvm-svn: 207670
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We would emit a pair of double quotes inside a pair of single quotes.
Just use a pair of single quotes.
llvm-svn: 204312
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llvm-svn: 196908
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One of these was spotted in review by Rafael.
llvm-svn: 187598
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It is failing with
YAMLTest.cpp:38: instantiated from here
YAMLTraits.h:226: error: 'llvm::yaml::MappingTraits<<unnamed>::BinaryHolder>::mapping' is not a valid template argument for type 'void (*)(llvm::yaml::IO&, <unnamed>::BinaryHolder&)' because function 'static void llvm::yaml::MappingTraits<<unnamed>::BinaryHolder>::mapping(llvm::yaml::IO&, <unnamed>::BinaryHolder&)' has not external linkage
llvm-svn: 186245
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Previously, it would simply output nothing, but it should output an
empty string `""`.
llvm-svn: 185894
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