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Built libdispatch with clang interface stubs. Ran into some block
related issues. Basically VarDecl symbols can leak out because I wasn't
checking the case where a VarDecl is contained inside a BlockDecl
(versus a method or function).
This patch checks that a VarDecl is not a child decl of a BlockDecl.
This patch also does something very similar for c++ lambdas as well.
Differential Revision: https://reviews.llvm.org/D71301
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Just trying to make https://reviews.llvm.org/D71301 look cleaner.
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NamespaceAliasDecl UnresolvedUsingTypenameDecl CXXDeductionGuideDecl
ConstructorUsingShadowDecl
Differential Revision: https://reviews.llvm.org/D70728
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Adding support for processing the following Decls: NonTypeTemplateParmDecl,
CXXConversionDecl, UnresolvedUsingValueDecl, UsingDecl, UsingShadowDecl,
TypeAliasTemplateDecl, TypeAliasDecl, VarTemplateDecl,
VarTemplateSpecializationDecl, UsingDirectiveDecl, TemplateTemplateParmDecl,
ClassTemplatePartialSpecializationDecl, IndirectFieldDecl.
Also, this allows for processing NamedDecls that don't have an identifier and
skips over VarDecls that are dependent on template types.
Differential Revision: https://reviews.llvm.org/D69995
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Microsoft's ABI mangles names differently than Itanium and this breaks the LLVM
yaml parser unless the name is escaped in quotes. Quotes are being added to the
mangled names of the IFS file generation so that llvm-ifs doesn't break when
Windows triples are passed to the driver.
Differential Revision: https://reviews.llvm.org/D68915
llvm-svn: 374798
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This is just a long standing spelling error that was found recently.
llvm-svn: 374638
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The clang IFS ASTConsumer was asserting on enums, records (struct definitions in
C), and typedefs. All it needs to do is skip them because the stub just needs to
expose global object instances and functions.
Differential Revision: https://reviews.llvm.org/D68859
llvm-svn: 374573
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llvm-svn: 369803
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I've been working on a new tool, llvm-ifs, for merging interface stub files
generated by clang and I've iterated on my derivative format of TBE to a newer
format. llvm-ifs will only support the new format, so I am going to drop the
older experimental interface stubs formats in this commit to make things
simpler.
Differential Revision: https://reviews.llvm.org/D66573
llvm-svn: 369719
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After posting llvm-ifs on phabricator, I made some progress in hardening up how
I think the format for Interface Stubs should look. There are a number of
things I think the TBE format was missing (no endianness, no info about the
Object Format because it assumes ELF), so I have added those and broken off
from being as similar to the TBE schema. In a subsequent commit I can drop the
other formats.
An example of how The format will look is as follows:
--- !experimental-ifs-v1
IfsVersion: 1.0
Triple: x86_64-unknown-linux-gnu
ObjectFileFormat: ELF
Symbols:
_Z9nothiddenv: { Type: Func }
_Z10cmdVisiblev: { Type: Func }
...
The format is still marked experimental.
Differential Revision: https://reviews.llvm.org/D66446
llvm-svn: 369715
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Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.
Differential revision: https://reviews.llvm.org/D66259
llvm-svn: 368942
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This change reverts r363649; effectively re-landing r363626. At this point
clang::Index::CodegenNameGeneratorImpl has been refactored into
clang::AST::ASTNameGenerator. This makes it so that the previous circular link
dependency no longer exists, fixing the previous share lib
(-DBUILD_SHARED_LIBS=ON) build issue which was the reason for r363649.
Clang interface stubs (previously referred to as clang-ifsos) is a new frontend
action in clang that allows the generation of stub files that contain mangled
name info that can be used to produce a stub library. These stub libraries can
be useful for breaking up build dependencies and controlling access to a
library's internal symbols. Generation of these stubs can be invoked by:
clang -fvisibility=<visibility> -emit-interface-stubs \
-interface-stub-version=<interface format>
Notice that -fvisibility (along with use of visibility attributes) can be used
to control what symbols get generated. Currently the interface format is
experimental but there are a wide range of possibilities here.
Currently clang-ifs produces .ifs files that can be thought of as analogous to
object (.o) files, but just for the mangled symbol info. In a subsequent patch
I intend to add support for merging the .ifs files into one .ifs/.ifso file
that can be the input to something like llvm-elfabi to produce something like a
.so file or .dll (but without any of the code, just symbols).
Differential Revision: https://reviews.llvm.org/D60974
llvm-svn: 363948
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This reverts commit rC363626.
clangIndex depends on clangFrontend. r363626 adds a dependency from
clangFrontend to clangIndex, which creates a circular dependency.
This is disallowed by -DBUILD_SHARED_LIBS=on builds:
CMake Error: The inter-target dependency graph contains the following strongly connected component (cycle):
"clangFrontend" of type SHARED_LIBRARY
depends on "clangIndex" (weak)
"clangIndex" of type SHARED_LIBRARY
depends on "clangFrontend" (weak)
At least one of these targets is not a STATIC_LIBRARY. Cyclic dependencies are allowed only among static libraries.
Note, the dependency on clangIndex cannot be removed because
libclangFrontend.so is linked with -Wl,-z,defs: a shared object must
have its full direct dependencies specified on the linker command line.
In -DBUILD_SHARED_LIBS=off builds, this appears to work when linking
`bin/clang-9`. However, it can cause trouble to downstream clang library
users. The llvm build system links libraries this way:
clang main_program_object_file ... lib/libclangIndex.a ... lib/libclangFrontend.a -o exe
libclangIndex.a etc are not wrapped in --start-group.
If the downstream application depends on libclangFrontend.a but not any
other clang libraries that depend on libclangIndex.a, this can cause undefined
reference errors when the linker is ld.bfd or gold.
The proper fix is to not include clangIndex files in clangFrontend.
llvm-svn: 363649
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Clang interface stubs (previously referred to as clang-ifsos) is a new frontend
action in clang that allows the generation of stub files that contain mangled
name info that can be used to produce a stub library. These stub libraries can
be useful for breaking up build dependencies and controlling access to a
library's internal symbols. Generation of these stubs can be invoked by:
clang -fvisibility=<visibility> -emit-interface-stubs \
-interface-stub-version=<interface format>
Notice that -fvisibility (along with use of visibility attributes) can be used
to control what symbols get generated. Currently the interface format is
experimental but there are a wide range of possibilities here.
Differential Revision: https://reviews.llvm.org/D60974
llvm-svn: 363626
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