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f95af3a89a
218 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Dodji Seketeli
|
f95af3a89a |
Do not compare access specs for member types & functions
It turns that in some DWARF (e.g, from the r300_dri.so binary in bug libabigail/19024) the same class Foo can be declared as a struct, and later defined as a class. Or the other way around. In some cases, Foo can be declared as a struct, have a member type Foo::Type with no access specifier, and later that member type is still present with no access specifier when Foo is defined as a class. So when comparing Foo::Type (from struct Foo) against Foo::Type (from class Foo) we must not consider the access specification of Type, otherwise, as in the first case it's 'public' and in the second case it's 'private', the two member types would be considered different. And something similar happens for member function declarations too. This patch thus avoids comparing access specifiers for member types and functions. Though it can be considered as a regression compared to what was being done before, access specifiers don't have an impact on ABI per se. And they can cause noise in the result, as we are seeing here. * include/abg-fwd.h (is_function_decl): Declare a new overload. * src/abg-ir.cc (is_function_decl): Define a new overload. (equals): In the overload for decl_base, do not compare access specifiers when comparing member functions and types. * tests/data/test-diff-dwarf/test0-report.txt: Adjust. * tests/data/test-diff-filter/test0-report.txt: Likewise. * tests/data/test-diff-filter/test01-report.txt: Likewise. * tests/data/test-diff-filter/test30-pr18904-rvalueref-report0.txt: Likewise. * tests/data/test-diff-filter/test31-pr18535-libstdc++-report-0.txt: Likewise. * tests/data/test-diff-filter/test4-report.txt: Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
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Ondrej Oprala
|
b2a5bf6389 |
Bug 19082 - Recognize suppression spec files
When abipkgdiff is invoked on a set of packages, the newer (second) one is also
inspected for files matching the pattern '*.abignore', whose contents are read
and interpreted as suppression specifications.
* tests/data/Makefile.am: Add new test material to the build system.
* tests/data/test-diff-pkg/dirpkg-{0-dir1,{1,2}-dir2}/dir.abignore:
A test suppression specification.
* tests/data/test-diff-pkg/dirpkg-{2,3}-dir2/.abignore: Likewise.
* tests/data/test-diff-pkg/dirpkg-3.suppr: Likewise.
* tests/data/test-diff-pkg/dirpkg-{1,2,3}-dir{1,2}/libobj-v0.so: New
binary test inputs.
* tests/data/test-diff-pkg/dirpkg-{1,2,3}-dir{1,2}/obj-v0.cc: New test
source files
* tests/data/test-diff-pkg/dirpkg-{1,2,3}-report-{0,1}.txt: New
reference outputs
* tests/test-diff-pkg.cc: Adjust to run the new tests.
* tools/abipkgdiff.cc (prog_options): New static pointer to struct
opts.
(file_tree_walker_callback_fn): Rename to
first_package_tree_walker_callback_fn.
(second_package_tree_walker_callback_fn): Check for ELF files just
like the previous function but additionally check for files
ending with ".abignore", unless disabled from the command line.
({create_maps_of_package,extract_package_and_map_its}_content):
Add a callback as a new argument.
(main) handle the new "--no-abignore" option, which turns off
the search for suppression files within the new package.
Signed-off-by: Ondrej Oprala <ooprala@redhat.com>
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Dodji Seketeli
|
efeb4e2a8a |
Bug 19024 - Failing to flag underlying type of enums as anonymous
The for now, the underlying type of an enum type is always assumed to be anonymous by libabigail. But then, the code of the DWARF reader was failing to set the "is-anonymous" flag on it. So type canonicalizing code was comparing the enum underlying types by looking at their names; they all have the same name -- as we forget that they are anonymous; so they (wrongly) all look the same, within the same ABI corpus. This patch sets properly sets the is-anonymous flag on enumerator underlying types again. * src/abg-dwarf-raeder.cc (build_enum_type): Set the is-anonymous flag on the underlying type of the enum. * tests/data/test-read-dwarf/test0.abi: Adjust. * tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Likewise. * tests/data/test-read-dwarf/test10-pr18818-gcc.so.abi: Likewise. * tests/data/test-read-dwarf/test11-pr18828.so.abi: Likewise. * tests/data/test-read-dwarf/test12-pr18844.so.abi: Likewise. * tests/data/test-read-dwarf/test13-pr18894.so.abi: Likewise. * tests/data/test-read-dwarf/test14-pr18893.so.abi: Likewise. * tests/data/test-read-dwarf/test15-pr18892.so.abi: Likewise. * tests/data/test-read-dwarf/test16-pr18904.so.abi: Likewise. * tests/data/test-read-dwarf/test17-pr19027.so.abi: Likewise. * tests/data/test-read-dwarf/test18-pr19037-libvtkRenderingLIC-6.1.so.abi: Likewise. * tests/data/test-read-dwarf/test19-pr19023-libtcmalloc_and_profiler.so.abi: Likewise. * tests/data/test-read-dwarf/test20-pr19025-libvtkParallelCore-6.1.so.abi: Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
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Dodji Seketeli
|
e9bdb488b3 |
Bug 19025 - abixml writer forgets to emit some member types
When a member type (a type that is a member of a class) M is referenced by some types emitted by abixml, but the context of M (the class type which M is a member of) is not itself referenced by any ABI artifact, then abixml forgets to emit the context of M and thus M itself. With this patch, when the abixml writer has emitted almost all ABI artifacts for the current translation unit, it looks for types that have been referenced by the emitted ABI artifacts, but that haven't been emitted themselves. It then emits those referenced-but-not-emitted types, and makes sure their contexts are emitted as well. * include/abg-fwd.h (is_namespace): Fix prototype. * src/abg-writer.cc (struct type_ptr_comp_functor): New internal type. (sort_type_ptr_map): New static function. (write_context::m_referenced_types_map): Renamed m_referenced_fntypes_map data member into this. (write_context::get_referenced_types): New member function. (write_context::record_type_as_referenced): Renamed record_fntype_as_referenced member function into this. Adjust. (write_context::type_is_referenced): Renamed fntype_is_referenced into this. (write_context::clear_referenced_types_map): Renamed clear_referenced_fntypes_map member function into this. Adjust. (write_decl_in_scope): New static function. (write_translation_unit): Use it here to emit types that are referenced by other types in the TU, but that are not emitted. Adjust. (write_pointer_type_def, write_reference_type_def) (write_typedef_decl): Record the underlying types referenced by the emitted types as being, well, referenced. * tests/data/test-read-dwarf/test20-pr19025-libvtkParallelCore-6.1.so: New test binary input. * tests/data/test-read-dwarf/test20-pr19025-libvtkParallelCore-6.1.so.abi: New reference output of the binary input above. * tests/data/Makefile.am: Add the new test material above to the source distribution. * tests/test-read-dwarf.cc (in_out_spec): Add the new test inputs. * tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Adjust. * tests/data/test-read-dwarf/test10-pr18818-gcc.so.abi: Likewise. * tests/data/test-read-dwarf/test12-pr18844.so.abi: Likewise. * tests/data/test-read-dwarf/test13-pr18894.so.abi: Likewise. * tests/data/test-read-dwarf/test14-pr18893.so.abi: Likewise. * tests/data/test-read-dwarf/test15-pr18892.so.abi: Likewise. * tests/data/test-read-dwarf/test16-pr18904.so.abi: Likewise. * tests/data/test-read-dwarf/test17-pr19027.so.abi: Likewise. * tests/data/test-read-dwarf/test18-pr19037-libvtkRenderingLIC-6.1.so.abi: Likewise. * tests/data/test-read-dwarf/test19-pr19023-libtcmalloc_and_profiler.so.abi: Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
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Dodji Seketeli
|
0e3416e7e2 |
Bug 19023 - Type canonicalization is sensitive to struct-ness
In some debug info of some shared library, the same type can be present as a struct in some translation units, and as a class in others. As we are using the "pretty representation" of types to hash types during type canonicalization, a "class foo" and "struct foo" are (wrongly) considered different, because those pretty representations are different. This patch changes the canonicalization code to make it independent from the struct-ness of the class being canonicalized. * include/abg-ir.h (class_decl::is_struct): Declare a setter for the "is-struct" property. * src/abg-ir.cc (class_decl::is_struct): And define that setter here. (type_base::get_canonical_type_for): Temporarily set the 'is-struct' flag of the class type to 'false' before building its pretty representation. * tests/data/test-read-dwarf/test19-pr19023-libtcmalloc_and_profiler.so: New test input binary. * tests/data/test-read-dwarf/test19-pr19023-libtcmalloc_and_profiler.so.abi: New test reference output. * tests/data/Makefile.am: Add the new test material above to the source distribution. * tests/test-read-dwarf.cc (in_out_specs): Add the two new test inputs to the list of test inputs to consider. * tests/data/test-read-dwarf/test14-pr18893.so.abi: Adjust. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
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Dodji Seketeli
|
48801d23e4 |
Bug 19037 - Make ABI corpus support several functions with same symbol
It turns out that, in DWARF, there can be function template
instantiations foo<int>(int) and foo<TypedefOfInt>(TypedefOfInt) which
have the same symbol name, if TypedefOfInt is a typedef of int.
An ABI corpus retains only one function declaration per symbol
name. So in the example of the bug the input DWARF has the two
instantiations, but libabigail is just keeping one of the two; so the
abixml only has one of the two template instantiations.
This patch changes the ABI corpus model so that it represents the fact
that there can be several function declarations for a given symbol.
The patch then adjust the comparison engine to make it know about this
new model.
* include/abg-corpus.h
(corpus::exported_decls_builder::str_{fn,var}_ptr_map_type):
Remove these typedefs from here as they only used internally in
abg-corpus.cc. So we move them there instead.
* src/abg-corpus.cc (str_fn_ptrs_map_type): New typedef.
(str_var_ptr_map_type): Moved the typedef that was in
corpus::exported_decls_builder here.
(corpus::exported_decls_builder::id_fns_map_): Rename the fns_
data member into this. Make it have a str_fn_ptrs_map_type as a
type.
(corpus::exported_decls_builder::id_fns_map): Renamed the
fns_map() accessor into this one.
(corpus::exported_decls_builder::{fn_id_is_in_id_fns_map,
fn_is_in_fns}): New member functions.
(corpus::exported_decls_builder::fn_is_in_id_fns_map): Rename
fn_is_in_map into this.
(corpus::exported_decls_builder::add_fn_to_id_fns_map): Rename
add_fn_to_map into this.
(corpus::exported_decls_builder::add_fn_to_exported): Adjust.
(corpus::exported_decls_builder::maybe_add_fn_to_exported_fns):
Adjust.
* src/abg-comparison.cc (function_decl_diff::report): Emit reports
about function name changes (for a given function ID) only if
there are sub-type changes to be reported for the function. In
that case, do not forget to emit the sub-type changes after the
name changes have been reported.
(corpus_diff::priv::ensure_lookup_tables_populated): Several
functions of the same ID can be removed or added from/to the
corpus.
* tests/data/test-read-dwarf/test18-pr19037-libvtkRenderingLIC-6.1.so:
New test input binary.
* tests/data/test-read-dwarf/test18-pr19037-libvtkRenderingLIC-6.1.so.abi:
New test output reference.
* tests/data/Makefile.am: Add the new test materials to the source
distribution.
* tests/test-read-dwarf.cc (in_out_specs): Adjust to add the new
test inputs above.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
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Dodji Seketeli
|
9a0abd846b |
Use the ODR to speed up type canonicalization
This is the last patch of the series of 11 patches that started at the
patch with the subject:
constify is_class_type()
And below starts the cover letter of this patch.
While analyzing some libraries like libmozjs.so[1] it appeared that
type canonicalization takes a significant time to comparing composite
types that are re-defined in each translation units again and again.
The One Definition Rule[2] says that two types with the same name
shall designate the same thing; so when a type T being canonicalized
has the same name of a canonical type C in the same ABI corpus, then
this patch considers C as being the canonical type of T, without
comparing T and C structurally. This saves us from comparing T and C.
Before this patch, `abidw --noout libmozjs.so` was taking
approximatively 5 minutes; with the patch, it takes 1 minutes and 30
seconds.
To do this, the patch changes ABI artifacts to carry a pointer to the
corpus it belongs to. Whenever an ABI artifact is added to a given
context, the corpus of that context is propagated to the artifact;
that is now possible as the artifact now carries the property of the
corpus it belongs to.
During type canonicalization the ODR-based optimization outlined above
is performed as we can now compare the corpus of a given type again
the one of another type; it's now possible to know if two types come
from the same corpus.
There are a few cases though were the optimization is not performed:
- anonymous struct; when a struct is anonymous (it has no name, as
described in the DWARF), the DWARF reader gives it a name
nonetheless, so that diagnostics can refer to that anonymous type.
But then all anonymous types in the system have the same name. So
when faced with two anonymous types (with the same name) from the
same corpus, it's wrong to consider that they name the same thing.
The patch added an "is_anonymous" property to types created by the
DWARF reader so that such anonymous types can be detected by the
type canonicalizer; they are thus not involved in this
optimization. Note that the abixml writer and reader have been
updated to emit and read this property.
- typedefs. I have seen in some boost code two typedefs of the same
name refer to different underlying types. I believe this is a
violation of ODR. I'll need to investigate on this later. And I
think we really need to detect these ODR violations as part of
this enhancement request:
https://sourceware.org/bugzilla/show_bug.cgi?id=18941.
- pointers, references, arrays and function types, as they can refer
to the two exceptions above.
This is the last patch of the series which aimed at speeding up type
canonicalization in the context of types being re-defined a lot in
translation units.
[1]: Instruction to build libmozjs.so from the mongodb sources:
- git clone https://github.com/mongodb/mongo.git
- cd mongo
- scons --link-model=dynamic build/opt/third_party/mozjs-38/libmozjs.so
[2] One Definition Rule: https://en.wikipedia.org/wiki/One_Definition_Rule
* include/abg-fwd.h (class corpus): Forward-declare this.
(is_anonymous_type): Declare this new function.
* include/abg-ir.h (corpus_sptr, corpus_wptr): Declare these
typedefs here too.
(translation_unit::{g,s}et_corpus): Declare new member functions.
(type_or_decl_base::{g,s}et_corpus): Likewise.
* src/abg-ir.cc (translation_unit::priv::corpus): New data member.
(translation_unit::priv::priv): Initialize it.
(translation_unit::{g,s}et_corpus): Define new accessors.
(translation_unit::get_global_scope): Propagate the corpus of the
translation unit to its newly created global scope.
(translation_unit::bind_function_type_life_time): Propagate the
corpus of the translation_unit to the added function type.
(type_or_decl_base::priv::corpus_): Add new data member.
(type_or_decl_base::priv::priv): Initialize it.
(type_or_decl_base::{g,s}et_corpus): Define new accessors.
(scope_decl::{add,insert}_member_decl): Propagate the context's
corpus to the member added to the context.
(decl_base::priv::is_anonymous_): Add new data member.
(decl_base::priv::priv): Initialize it.
(decl_base::{s,g}et_is_anonymous): Define accessors.
(is_anonymous_type): Define a new test function.
(decl_base::set_name): Update the "is_anonymous" property.
(type_base::get_canonical_type_for): Implement the ODR-based
optimization to type canonicalization.
* src/abg-corpus.cc (corpus::add): When a translation unit is
added to a corpus, set the corpus of the translation unit.
* src/abg-dwarf-reader.cc (build_enum_type)
(build_class_type_and_add_to_ir): Set the "is_anonymous" flag on
anonymous enums and classes.
* src/abg-reader.cc (read_is_anonymous): Define new static
function.
(build_type_decl, build_enum_type, build_class_decl): Call the new
read_is_anonymous function and set the "is_anonymous" property on
the built type declaration.
* src/abg-writer.cc (write_is_anonymous): Define new static
function.
(write_type_decl, write_enum_type_decl, write_class_decl): Write
the "is_anonymous" property.
* tests/data/test-diff-filter/test31-pr18535-libstdc++-report-0.txt:
Adjust.
* tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Likewise.
* tests/data/test-read-dwarf/test10-pr18818-gcc.so.abi: Likewise.
* tests/data/test-read-dwarf/test11-pr18828.so.abi: Likewise.
* tests/data/test-read-dwarf/test12-pr18844.so.abi: Likewise.
* tests/data/test-read-dwarf/test13-pr18894.so.abi: Likewise.
* tests/data/test-read-dwarf/test14-pr18893.so.abi: Likewise.
* tests/data/test-read-dwarf/test15-pr18892.so.abi: Likewise.
* tests/data/test-read-dwarf/test16-pr18904.so.abi: Likewise.
* tests/data/test-read-dwarf/test17-pr19027.so.abi: Likewise.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
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Ondrej Oprala
|
910672f8c2 |
Bug 19027 - ABI asymmetry with enums over INT_MAX
* src/abg-reader.cc (build_enum_type_decl): Use strtol instead of atoi to parse the values and check for overflow. * tests/data/Makefile.am: Add the new test material to the build system. * tests/data/test-read-dwarf/test17-pr19027.so: New test file. * tests/data/test-read-dwarf/test17-pr19027.so.abi: Likewise. * tests/test-read-dwarf.cc: Adjust to launch the new test. Signed-off-by: Ondrej Oprala <ooprala@redhat.com> |
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Ondrej Oprala
|
9cb146a013 |
Bug 17340 - Support pointers and references to functions
* include/abg-comparison.h (compute_diff_for_distinct_kinds): Take the
first two arguments of type const type_or_decl_base_sptr instead.
* include/abg-ir.h (translation_unit::get_function_types): Declare new
method.
(function_types): Declare new typedef.
* src/abg-comparison.cc (compute_diff_for_types): Take the first two
arguments of type const type_or_decl_base_sptr instead of a const
decl_base_sptr.
(try_to_diff): Likewise.
(try_to_diff<class_decl>): Likewise.
(try_to_diff_distinct_kinds): Likewise.
(compute_diff_for_distinct_kinds): Likewise. Also remove a variant
accepting arguments of type const type_base_sptr.
* src/abg-dwarf-reader.cc (build_class_type_and_add_to_ir): Skip
building a pointer if it points to the beginning of a vptr.
(build_pointer_type_def): Declare utype_decl of type
type_or_decl_base_sptr and adjust assignments to it accordingly.
(build_function_type): New function definition.
(build_function_decl): Call build_function_type instead of building
an ftype manually.
(build_ir_node_from_die): Amend case DW_TAG_subroutine_type with
appropriate calls to build a function type.
* src/abg-ir.cc (translation_unit::get_function_types): New method
definition.
({pointer,reference}_type_def::pointer_type_def): Expect that
pointed_to might not have an accompanying declaration and set a type's
name in this case as well.
({pointer,reference}_type_def::get_qualified_name): Generate a
qualified name even if the pointed-to type has no declaration.
* src/abg-reader.cc (build_function_type): New function definition.
(handle_element_node): Return a type_or_decl_base_sptr instead and
try calling handle_function_type in addition to others.
(handle_function_type): New function definition that calls
build_function_type.
(build_type): Try calling build_function_type as well.
* src/abg-writer.cc (fn_shared_ptr_map): Declare new typedef.
(write_context::{clear_referenced_fntypes_map,fntype_is_referenced,
record_fntype_as_referenced}): New member functions.
(write_translation_unit): Call the new clear_referenced_fntypes_map.
* tests/data/Makefile.am: Add the new test material to the build
system.
(write_translation_unit): Separately write function types that have
been recorded to emit by write_{pointer,reference}_type_def.
(write_{pointer,reference}_type_def): Record the type pointed to as
a type to be emitted if type == function type.
(write_function_type): Write the details of a function type in the
abixml format and unmark the type.
* tests/data/test-diff-dwarf/test32-fnptr-changes-report-0.txt: New
test reference report.
* tests/data/test-diff-dwarf/test32-fnptr-changes-v{0,1}.cc: New test
source files.
* tests/data/test-diff-dwarf/test32-fnptr-changes-v{0,1}.o: New binary
test inputs.
* tests/data/test-diff-dwarf/test33-fnref-changes-report-0.txt: New
test reference report.
* tests/data/test-diff-dwarf/test33-fnref-changes-v{0,1}.cc: New test
source files.
* tests/data/test-diff-dwarf/test33-fnref-changes-v{0,1}.o: New binary
test inputs.
* tests/data/test-diff-filter/test30-pr18904-rvalueref-report0.txt:
Adjust.
* tests/data/test-diff-filter/test31-pr18535-libstdc++-report-0.txt:
Likewise.
* tests/data/test-read-dwarf/test10-pr18818-gcc.so.abi: Likewise.
* tests/data/test-read-dwarf/test11-pr18828.so.abi: Likewise.
* tests/data/test-read-dwarf/test12-pr18844.so.abi: Likewise.
* tests/data/test-read-dwarf/test13-pr18894.so.abi: Likewise.
* tests/data/test-read-dwarf/test14-pr18893.so.abi: Likewise.
* tests/data/test-read-dwarf/test15-pr18892.so.abi: Likewise.
* tests/data/test-read-dwarf/test16-pr18904.so.abi: Likewise.
* tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Likewise.
* tests/data/test-read-write/test27.xml: New test source file.
* tests/test-diff-dwarf.cc: Adjust to launch the new tests.
* tests/test-read-write.cc: Likewise.
Signed-off-by: Ondrej Oprala <ooprala@redhat.com>
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Dodji Seketeli
|
d0b8ef6521 |
Bug 18535 - abidiff reports false positive ABI difference for libstdc++
When the DWARF reader of libabigail sees a data member for a given class flagged as being a declaration, it considers the declaration as being a definition. The reason why it doesn't strictly trust the "is_declaration" flag of DWARF is that some DWARF producers sometimes wrongly emit that flag. But then, it turns out that a class declaration can have a *static* data member without loosing its declaration-only property. This patch thus changes the behaviour of the DWARF reader to make it consider the class declaration as being a definition when the class has a *non-static* data member; a static data member only is not enough to make the class declaration become a definition. * src/abg-dwarf-reader.cc (build_class_type_and_add_to_ir): The presence of a data member shouldn't make a declaration-only class loose its declaration-only-ness; the presence of a enon-static* data member should. * tests/data/test-read-dwarf/test15-pr18892.so.abi: Adjust. * tests/data/test-read-dwarf/test16-pr18904.so.abi: Likewise. * tests/data/test-diff-filter/test31-pr18535-libstdc++-4.8.3.so: New binary test input. * tests/data/test-diff-filter/test31-pr18535-libstdc++-4.9.2.so: Likewise. * tests/data/test-diff-filter/test31-pr18535-libstdc++-report-0.txt: New test reference output. * tests/data/Makefile.am: Add the new test material to the build system. * tests/test-diff-filter.cc (in_out_specs): Add the new test inputs to the set of inputs to consider. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
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Dodji Seketeli
|
912eb7e36b |
Speed up type canonicalization by avoiding recursive hashing
Recursive type hashing was showing up as the major hot spot of
performance profiles. After spending a few days on trying to speed it
up, I have officially declared recursive tree node hashing as a slow
process and I am giving up.
I have thus decided to not use that at type canonicalization time.
Rather, I am proposing a new type canonicalization routine where types
are first hashed by hashing their pretty representation string.
Basically, if T is the total number of types in the system and C the
number of classes of equivalences (or the number of canonical types),
the number of type comparisons done by a naive type canonicalization
routine is N x C. With the worse C being equal to N itself, that
worse number of comparisons is N*N.
By using a hash table to store the canonical types, keyed by a hash of
their pretty representation string, the number of type comparisons can
be brought down to N*P, where P is a the greater number of which
pretty representation string hash collide. That number P is usually
small; my measurements show that N usually goes from 1 to 3. And
moreover, computing the hash of the pretty representation string of
the function is way faster than using the recursive type hash!
As a result, running abidw on the libcilkrts.so library, from GCC goes
from 12 minutes to 0.4 seconds!
Incidentally, now that we are not trying to speed up the recursive
type hashing process, all the complicated business we had around
caching the result of the hashing is gone! I was thinking that hash
cashing was inherently a bad idea, especially for recursive types --
that refer to themselves directly or indirectly, because in those
case, depending on when you cached the hash value, the value of the
hashing can be different.
The abixml writer's code doesn't use the recursive type hash anymore
either; it uses the pointer value of the canonical type as hash.
Super fast too!
The patch had to fix pieces here and there to comply with the fact
that canonical types are now used across the board in a mandatory
fashion.
* include/abg-ir.h (canonical_types_map_type): Adjust this typedef
to make it point to an unordered_map which the key is now a string
and the value is a vector of types.
(type_or_decl_base::{get_cached_hash_value, set_cached_hash_value,
cached_hash}): Remove these member functions and type.
(struct type_base::cached_hash): Remove.
* src/abg-ir.cc (struct type_or_decl_base::priv::hash_): Remove.
(type_or_decl_base::priv::priv): Adjust.
(type_or_decl_base::{g,s}et_cached_hash_value): Remove.
(type_base::get_canonical_type_for): For declaration-only classes,
look at their definition for the canonical_type. Do not use
recursive type hashing anymore. Rather, use the pretty
representation string, and hash that.
(class_decl::base_spec::get_hash): Do away with hash value caching
here.
(class_decl::operator==): For decl-only classes, look at their
definitions for canonical types.
(hash_type_or_decl): Adjust comment. Use the canonical type
pointer value for type hash. That's the fast path. Otherwise, if
not available, fall back to a slow path which is the recursive
type hash we were using before.
* src/abg-dwarf-reader.cc (maybe_canonicalize_type): Schedule all
classes and typedef to classes for late canonicalization.
* src/abg-hash.cc (type_base::dynamic_hash::operator()): There is
no hash value cashing anymore.
(type_base::cached_hash::operator()): Remove.
* src/abg-reader.cc (read_context::get_type): Slight style
adjustment.
(read_translation_unit_from_file)
(read_translation_unit_from_buffer): Do not forget to canonicalize
types when reading just one translation unit.
(build_type_tparameter, build_template_tparameter): Canonicalize
the type.
* src/abg-writer.cc (struct type_hasher): New hasher type.
(type_ptr_map): Use a deep pointer comparison equal operator
functor, and canonical types as type hash values.
(write_class_decl): Do not write size and alignment on decl-only
classes. Do not record decl-only classes as being emitted. Their
definition must be emitted before.
* tests/test-read-write.cc (main): Do not do abi testing on
translation units (as opposed to doing it on abi corpora) as that
code is not wet yet. We need to know how to diff namespaces.
* tests/data/test-abidiff/test-PR18791-report0.txt: Adjust.
* tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Likewise.
* tests/data/test-read-dwarf/test10-pr18818-gcc.so.abi: Likewise.
* tests/data/test-read-dwarf/test12-pr18844.so.abi: Likewise.
* tests/data/test-read-dwarf/test13-pr18894.so.abi: Likewise.
* tests/data/test-read-dwarf/test14-pr18893.so.abi: Likewise.
* tests/data/test-read-dwarf/test15-pr18892.so.abi: Likewise.
* tests/data/test-read-dwarf/test16-pr18904.so.abi: Likewise.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
||
|
Dodji Seketeli
|
16299395d7 |
Support source_location_not_in and source_location_not_regexp suppressions
This patch adds support for properties source_location_not_in and
source_location_not_regexp in the [suppress_type] section of
suppression specifications. So the suppression specification:
[suppress_type]
source_location_not_in = foo1.h, foo2.h bar1.h bar2.h
suppresses ABI change reports about types that are *NOT* defined in
files foo{1,2}.h and bar{1,2}.h. The intended use of this construct is to
constrain abi change reports to types that are part of the API of a
given shared library. The API of the library is supposed to be
defined in foo.h and bar.h only.
Similarly, the suppression specification:
[suppress_type]
source_location_not_regexp = (foo|bar){1,2}\\.h
suppresses ABI change reports about types that are not defined in the
same set of files foo1.h, foo2.h, bar1.h and bar2.h.
* include/abg-ini.h (enum property_value::value_kind): Add a
LIST_PROPERTY_VALUE kind.
(class {list_property_value, list_property}): Declare new types.
(is_list_property, is_list_property_value): Declare new functions.
* src/abg-ini.cc (struct list_property_value::priv): Define new
type.
(list_property_value::{list_property_value, get_content,
set_content, as_string}): Define new member functions.
(is_list_property_value): Define new function.
(struct list_property::priv): Define new type.
(list_property::{list_property, get_value, set_value,
handle_escape}): Define new member functions.
(is_list_property): Define new function.
(read_context::buf_): New data member.
(read_context::{peek, get, put_back, good, eof, read_string,
read_list_property_value}): New member functions.
(read_context::read_next_char): Use the new read_context::{get,
good, eof} member function, rather than using the input stream
directly.
(read_context::{skip_white_spaces, skip_comments,
skip_white_spaces_or_comments, read_property_name,
read_function_name, read_function_argument,
read_function_call_expr, read_property_value,
read_tuple_property_value, read_section_name, read_section}):
Adjust to use the new member functions of read_context rather than
using the input stream directly.
(read_context::read_string_property_value): Likewise. Use the new
read_context::read_string() method.
(read_context::{read, write}_property): Support reading list_property.
* include/abg-comparison.h
(type_suppression::{get_source_locations_to_keep,
set_source_locations_to_keep,
set_source_location_to_keep_regex_str,
get_source_location_to_keep_regex_str}): Add new member functions.
* src/abg-comparison.cc
(type_suppression::priv::{source_location_to_keep_,
source_location_to_keep_regex_str_,
source_location_to_keep_regex_}): Add new data members.
(type_suppression::priv::{g,s}et_source_location_to_keep_regex):
Define new member functions.
(type_suppression::{g,s}et_source_locations_to_keep): Define new
member functions.
(type_suppression::{g,s}et_source_location_to_keep_regex_str):
Likewise.
(type_suppression::suppresses_type): Support
"source_location_not_regexp" and "source_location_not_in"
properties of suppression specifications.
(read_type_suppression): Likewise. Also adjust to the fact that
ta tuple property value that is a list of strings is not a list
property value.
* doc/manuals/libabigail-concepts.rst: Add documentation for
source_location_not_in and source_location_not_regexp.
* tests/data/test-diff-suppr/libtest26-loc-suppr-v{0,1}.so: New
binary test inputs.
* tests/data/test-diff-suppr/test26-loc-suppr-{0,1,2}.suppr: New
suppression specification test inputs.
* tests/data/test-diff-suppr/test26-loc-suppr-report-{0,1,2,3}.txt:
New test reference reports.
* tests/data/test-diff-suppr/test26-loc-suppr-v{0,1}.cc: Source
code of the test binary input above.
* tests/data/test-diff-suppr/test26-loc-suppr.h: Likewise.
* tests/data/Makefile.am: Add the new test material to source
distribution.
* tests/test-diff-suppr.cc (in_out_specs): Add the new test inputs above.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
||
|
Dodji Seketeli
|
113601c062 |
Compare qualified name in decl_base comparison operator
* src/abg-ir.cc (equals): In the overload for decl_base, compare qualified names, not just names. * tests/data/test-abidiff/test-PR18791-report0.txt: Adjust. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
||
|
Dodji Seketeli
|
4b29b46269 |
Fix a stupid typo in function sorting code
* src/abg-comparison.cc (function_comp::operator()): Fix a typo preventing the proper sorting of function name when their declarator names are equal. Oops. * tests/data/test-diff-filter/test30-pr18904-rvalueref-report0.txt: Adjust. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
||
|
Dodji Seketeli
|
ba741963b9 |
Use cache type hash values only after type canonicalization is done
Look at this code:
struct list;
struct payload
{
int value;
list* parent_list; //<-- the hash value of struct list when looking
// through this pointer is the non-zero
// value as computed on the struct list
// type below.
};
struct list
{
payload* p; // <-- While walking the struct list type, the hash
// value of the 'struct list' sub-tree node when
// looking through this pointer is zero, because we
// are still computing the hash value of struct list.
// we do it this way to break the otherwise infinite
// recursion that might occur here.
list* next; // <-- likewise here.
list* prev; // <-- likewise here.
}; // <-- when we reach this point the hash value of struct list
// is computed and is different from zero.
Basically, when a type refers to itself in one of its sub-type (like
struct list here, where list::p refers to struct list, because its
type contains a pointer to struct list), then we need to devise a way
to break the infinite recursion we might fall into when computing its
hash value.
So, when computing the hash value of struct list, when we look at the
type of list::prev, which is "list*", we say that the hash value of the type
pointed to by the type of list::next (which is struct list itself) is
zero. This allows us to break the possibly infinite recursion here.
But then, this means that the hash value of "struct list" depends on
*when* we request that hash value. If we are computing the hash value
of struct list itself, then the temporary value of "struct list" is
zero. But then once we are done computing the hash value of "struct
list", that value becomes non-zero.
Hence, the hash value of a type depends on when that value is
computed.
But then if we want to cache that hash value and re-use it later,
which value should we cache? Definitely not the zero value!
So in other words, we can use (and thus cache) the hash value of a
given type T only after the hash values of all types which use T have
been computed.
To satisfy that condition, we decide to use the (cached) hash value of
each type only after we've computed all the hash values of all types
of the system.
So, during type canonicalization, when a type T is canonicalized, this
patch stores the hash value of T. But then it's only when all types
are canonicalized that the hashing code is allowed to re-use the
cached value of types.
This fixes the issues of spurious type differences introduced when the
same type was read either from DWARF or from abixml. Those
differences where introduced by differences in the order of hashing
types which sub-types refer to themselves. The patch also updates
regression tests accordingly.
* src/abg-dwarf-reader.cc (read_debug_info_into_corpus): Before we
read debug info and build the IR, set a flag in the environment
saying that type canonicalization isn't finished yet. But then,
after type canonicalization is done, flip that flag to say that
type canonicalization is done.
* src/abg-reader.cc (read_corpus_from_input): Likewise.
* src/abg-ir.cc (type_base::get_canonical_type_for): Once a type
has been canonicalized, cache its hash value.
* src/abg-hash.cc (type_base::dynamic_hash::operator()): If type
canonicalization has been done and if the type has a cached value,
use that one.
* tests/data/test-read-dwarf/test2.so.abi: Adjust.
* tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Likewise.
* tests/data/test-read-dwarf/test10-pr18818-gcc.so.abi: Likewise.
* tests/data/test-read-dwarf/test12-pr18844.so.abi: Likewise.
* tests/data/test-read-dwarf/test13-pr18894.so.abi: Likewise.
* tests/data/test-read-dwarf/test14-pr18893.so.abi: Likewise.
* tests/data/test-read-dwarf/test15-pr18892.so.abi: Likewise.
* tests/data/test-read-dwarf/test16-pr18904.so.abi: Likewise.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
||
|
Dodji Seketeli
|
49759d3be8 |
Bug 18904 - Fix support for C++ rvalue references
* src/abg-comparison.cc (reference_diff::has_changes): Just compare the references, rather than assuming that the change can only be on underlying types. (reference_diff::report): Describe lvalue/rvalue changes for references. * src/abg-ir.cc (reference_type_def::reference_type_def): Properly set the name for an rvalue reference. (equals): For references, compare lvalue-ness too. (reference_type_def::get_qualified_name): Properly set rvalue reference names. * tests/data/test-diff-filter/test30-pr18904-rvalueref-liba.so: New test input. * tests/data/test-diff-filter/test30-pr18904-rvalueref-libb.so: New test input. * tests/data/test-diff-filter/test30-pr18904-rvalueref-report0.txt: New test reference output. * tests/data/Makefile.am: Add the new files to source distribution. * tests/test-diff-filter.cc (in_out_specs): Run the new tests. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
||
|
Dodji Seketeli
|
3b6bada297 |
More type degradation fixes (from DWARF to abixml)
The series of fixes to make "abidw foo > foo.abi && abidiff foo foo.abi" work continues. On a binary submitted as part of bug 18904, I am still seeing type degradation. This patch addresses the different cases of degradation that are happening. * include/abg-fwd.h (get_type_scope): Declare new function. * src/abg-hash.cc (var_decl:#️⃣:operator()): Do not cache the hash because that can alter the hash computing of a larger type which embeds a var decl as a member declaration. This is especially true if the var decl indirectly references the larger type. The only way to cache the value of a var decl would be to wait after all canonical types have been computed. We'd then seal all types. After that sealing happens, we can cache var decls starting from the top-level ones. (function_decl:#️⃣:operator()): Likewise. * src/abg-ir.cc (get_type_scope): Define new functions. * src/abg-reader.cc (read_is_declaration_only): Declare this function earlier. (typedef const_types_map_it): Adjust this to make it point to a map of string and vector of types, as opposed to a map to string and type as it was before. (typedef types_map_it): New typedef. (read_context::map_id_and_node): Map a type id to the last xmlNodePtr that represent a *declaration*. That gives more leeway to the declaration resolution code to choose the right definition later. Otherwise, there are cases where the wrong definition. By wrong definition, I mean a definition that is different from the one chosen by the DWARF reading code, for a given declaration. Basically for a given ABI corpus, a type declaration resolve to the first definition seen in the corpus. (read_context::get_all_type_decls): Define new member function. (read_context::types_equal): Use qualified names only if both types have a scope. (read_context::key_type_decl): Now a given ID is associated to *all* the declarations and definition that have that ID. (read_translation_unit_from_input): Make sure the current corpus node points to the right node. (build_class_decl): Resolve class declarations to the first definition seen in the corpus. Key a type decl before reading its members as a reading a member can request the current decl. No need to try and canonicalize a member type, as build_class_decl() does that already. * tests/data/test-read-dwarf/test16-pr18904.so: New test binary input. * tests/data/test-read-dwarf/test16-pr18904.so.abi: New test output reference. * tests/test-read-dwarf.cc: Run the test above. * tests/data/Makefile.am: Add the new test input to source distribution. * tests/data/test-abidiff/test-PR18791-report0.txt: Adjust. * tests/data/test-read-dwarf/test13-pr18894.so.abi: Likewise. * tests/data/test-read-dwarf/test14-pr18893.so.abi: Likewise. * tests/data/test-read-dwarf/test15-pr18892.so.abi: Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
||
|
Dodji Seketeli
|
a4b9f670fe |
Bug 18892 - type degradation from DWARF to abixml on libtsan.so
abidiff-ing libtsan.so again the output of abidw libtsan.so does not yield the empty set. This is because some types, especially an enum (in certain cases) when read (de-serialized) from DWARF doesn't hash the same as when de-serialized from abixml. This is because an enum type can have a linkage name, referred to by the DW_AT_linkage_name DWARF attribute. This linkage_name was being read from DWARF but wasn't serialized to abixml. At de-serialization time, well, the linkage_name information was lost. Oops. Also, I have seen that in some case we can canonicalize enum types too early, when we de-serialize them from abixml, before we are done building them. This patch addresses these issues. * src/abg-reader.cc (read_context::maybe_canonicalize_type): Late canonicalize enum types. (build_enum_type_decl): Read the linkage name of the enum type. * src/abg-writer.cc (write_enum_type_decl): Emit the linkage name of the enum type. * tests/data/test-read-dwarf/test15-pr18892.so: New binary test input. * tests/data/test-read-dwarf/test15-pr18892.so.abi: New test output reference. * tests/data/Makefile.am: Add the new test inputs above to source distribution. * tests/test-read-dwarf.cc (in_out_specs): Run the two tests above. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
||
|
Dodji Seketeli
|
60cdabd931 |
Bug 18893 - type degradation from dwarf to abixml on libGLU.so
abidiff-ing libGLU.so against the result of 'abidw libGLU.so' does not yield the empty set. This is because hashing certain types when they are read (de-serialized) from DWARF doesn't give the same result as when they are de-serialized from abixml. I call this type degradation. And it leads to spurious comparison differences. This is due to several issues. 1/ The logical link between a class declaration and its definition -- that is built when reading types from DWARF is not preserved in abixml. So, for example, when a class S refers to itself via a pointer to its declaration, that type might hash differently when read from DWARF and when read from abixml. When read from abixml it's a pointer to S itself. But then that 'self' can be a copy of S that is defined in another file because abixml doesn't enforce the One Definition Rule from C++ either. 2/ As the result of hashing is kept in a cache for var_decl and function_decl, hashing those decl before their types are completely built caches a value that becomes wrong when their type become completely built. 3/ In DWARF, a class which has a virtual member function can still be considered as being declaration-only. And its definition can come later in the DWARF info. Our DWARF reader removes the "declaration-only" flag from a class as soon as it sees virtual member functions in that class; that makes us consider that class as a definition. And then later when we read the real definition of the class we have two classes of the same name, with different layouts/size in the system. This leads to spurious comparison differences too. This patch addresses issues 1, 2 and 3. * src/abg-dwarf-reader.cc (build_class_type_and_add_to_ir): Do not consider that virtual member functions disqualify a class from being declaration-only. * src/abg-hash.cc (var_decl:#️⃣:operator()): Do not cache the result of hashing before we are done building the type of the var_decl. (function_decl:#️⃣:operator()): Likewise, do not cache the result of hashing before we are done building the type of the function_decl. * src/abg-reader.cc (build_class_decl): Build the link between a class declaration and its definition. If there are several definitions of a class in the corpus, keep just one. * src/abg-writer.cc (write_class_is_declaration_only): Emit the link between a class declaration and its definition. (write_class_decl): Emit a class declaration even if it has a definition. The definition is going to be emitted separately. * tests/data/test-read-dwarf/test14-pr18893.so: New binary test input. * tests/data/test-read-dwarf/test14-pr18893.so.abi: New test reference output. * tests/data/Makefile.am: Add the new test input files to source distribution. * tests/test-read-dwarf.cc (in_out_specs): Run the new tests. * tests/data/test-abidiff/test-PR18791-report0.txt: Adjust. * tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Likewise. * tests/data/test-read-dwarf/test10-pr18818-gcc.so.abi: Likewise. * tests/data/test-read-dwarf/test11-pr18828.so.abi: Likewise. * tests/data/test-read-dwarf/test12-pr18844.so.abi: Likewise. * tests/data/test-read-dwarf/test13-pr18894.so.abi: Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
||
|
Dodji Seketeli
|
5822798dd1 |
Bug 18894 - Fix representation of enumerators in abixml format
It turns out that using a size_t to serialize an enumerator is not
enough to represent things like enum foo {value = -3}; We need to
represent it using ssize_t.
Also, the patch avoids early canonicalization (when reading DWARF) of
types that refer to themselves. This was leading to type degradation
(serializing the type from IR to abixml and de-serializing it back to
IR leads to a different type).
* include/abg-ir.h (enum_type_decl::enumerator::get_value()):
Change the type of this from size_t to ssize_t.
* src/abg-ir.cc (enum_type_decl::enumerator::get_value): Do the
same on the definition side.
(non_canonicalized_subtype_detector::visit_begin): If a type
refers to itself, late canonicalize it to have a similar hashing
result as what the abixml reader does.
* src/abg-reader.cc (build_enum_type_decl): Use ssize_t to read
the value of enumerators.
* tests/data/test-read-dwarf/test13-pr18894.so.abi: New test input.
* tests/data/Makefile.am: Add the new test inputs above to source
distribution.
* tests/test-read-dwarf.cc (in_out_specs): Add new test inputs.
* tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Adjust.
* tests/data/test-read-dwarf/test10-pr18818-gcc.so.abi: Likewise.
* tests/data/test-read-dwarf/test11-pr18828.so.abi: Likewise.
* tests/data/test-read-dwarf/test12-pr18844.so.abi: Likewise.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
||
|
Dodji Seketeli
|
425f8a4ec4 |
Detect vtable changes from member function changes
This patch adds vtable changes detection based on the detection of
virtual member function changes. That is, when a member function
changes, if that member function is virtual, then infer if the change
implies changes to the vtable of the containing class.
Before that patch, we were doing the vtable change detection when we
were comparing two classes; we were then comparing their virtual
member functions. But as for a given class all its virtual member
functions are not necessarily emitted in the DWARF debug info (only
the virtual member functions that are used in a given translation unit
are emitted in that translation unit) it's not reliable to compare
virtual member functions as part of comparing a given class. We thus
decided some patches ago to stop comparing virtual member functions
when we compare two classes.
So with this patch now, we still detect changes to the vtable and emit
an appropriate message to the user.
* include/abg-ir.h (class_decl::{has_virtual_base, has_vtable}):
Declare new member functions.
* src/abg-comp-filter.cc (has_virtual_mem_fn_change): New overload
for function_decl_diff.
(has_virtual_mem_fn_change): In the overload for diff*, support
virtual member function changes detection for function_decl_diff*.
* src/abg-comparison.cc (function_decl_diff::report): Detect and
report changes to a vtable by looking a changes that can happen to
a given member function.
(corpus_diff::report): Detect and report changes to vtables by
looking at changes change to member functions.
* tests/data/test-diff-dwarf/test29-vtable-changes-report-0.txt:
New text input.
* tests/data/test-diff-dwarf/test29-vtable-changes-v{0,1}.cc: Source
code of new test input binaries.
* tests/data/test-diff-dwarf/test29-vtable-changes-v{0,1}.o: New
test input binaries.
* tests/data/test-diff-dwarf/test30-vtable-changes-report-0.txt:
New text input.
* tests/data/test-diff-dwarf/test30-vtable-changes-v{0,1}.cc: New
test input.
* tests/data/test-diff-dwarf/test30-vtable-changes-v{0,1}.o: New
test input binaries.
* tests/data/test-diff-dwarf/test31-vtable-changes-report-0.txt:
New test input.
* tests/data/test-diff-dwarf/test31-vtable-changes-v{0,1}.cc:
Source code of new test input binary.
* tests/data/test-diff-dwarf/test31-vtable-changes-v{0,1}.o: New
test input binary.
* tests/data/Makefile.am: Add the new test input files above to
source distribution.
* tests/test-diff-dwarf.cc (in_out_specs): Consume the new test
inputs above.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
||
|
Dodji Seketeli
|
d8af43b827 |
Do not hash or compare virtual member functions as par of classes
When comparing two classes, do not compare their virtual member
functions anymore, because DWARF might not represent all the virtual
member functions of a class, in a given translation unit.
We still detect changes to virtual member functions (adding or
removing) because the index of a given member function in a vtable is
a property of the member function itself. So if a vtable index
changes on a function, we detect it as part of comparing the exported
member functions themselves. Likewise, if a member function is added
or removed, we detect it; and so if it's a virtual member function
then we detect it too. In a subsequent patch, we'll add a dedicated
section to the report emitted by abidiff for changes to the vtable of
classes, I guess.
For now, this patch fixes some crashes we were having due to
discrepancies in hash values of classes, due to the fact that not all
of their virtual member functions were present in the debug info,
depending on the translation unit of the classes in question.
* src/abg-ir.cc (equals): When comparing two classes, do not
compare their virtual member functions.
* src/abg-hash.cc (class_decl:#️⃣:operator()): Do not hash
virtual member functions when hashing a class.
* tests/data/test-read-dwarf/test10-pr18818-gcc.so.abi: Adjust.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
||
|
Dodji Seketeli
|
540370c9d1 |
Adjust many reference output for the non-regression test suite
So the last series of patches have changed the test output a lot. This patch adjusts the reference output to have "make check" work again. There is still one test that fails: ./build/tests/runtestreaddwarf. It'll be addressed in subsequent patches from now. * tests/data/test-abidiff/test-enum0-report.txt: Adjust. * tests/data/test-abidiff/test-enum1-report.txt: Adjust. * tests/data/test-abidiff/test-qual-type0-report.txt: Adjust. * tests/data/test-abidiff/test-struct0-report.txt: Adjust. * tests/data/test-read-dwarf/test10-pr18818-gcc.so.abi: Adjust. * tests/data/test-read-dwarf/test11-pr18828.so.abi: Adjust. * tests/data/test-read-dwarf/test12-pr18844.so.abi: Adjust. * tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Adjust. * tests/data/test-read-write/test17.xml: Adjust. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
||
|
Dodji Seketeli
|
585fc4c33c |
Make abipkgdiff compare tar archives containing binaries
This patch adds support for comparing the ABI of binaries contained in
a tar archive.
If the archive is compressed with gzip, bzip2, lzip, lzma or xz, then
abipkgdiff recognizes the usual relevant file extensions and lets the
GNU tar program handle the decompression.
If the archive is not compressed, abipkgdiff recognizes the UStar
(Uniform Standard Tape ARchive) format, even if the archive file name
doesn't end with the .tar extension, and lets the GNU tar program
handle the extraction. If the file ends up with the .tar extension
anyway (even if it's not in the UStar format, abipkgdiff lets the GNU
tar program handle its extraction.
* config.h.in (WITH_TAR): New configuration preprocessor macro.
* configure.ac: Add a new --enable-tar option. It's turned on
automatically if the tar program is found in the PATH. Adjust the
build configuration report to add the tar archive support.
* include/abg-tools-utils.h (string_ends_with): Declare new
function.
(enum file_type): Add a new FILE_TYPE_TAR enumerator.
* src/abg-tools-utils.cc (string_ends_with): Define new function.
(operator<<(ostream&, file_type)): Serialize the new FILE_TYPE_TAR
enumerator.
(guess_file_type): Detect UStar format file by reading its magic
number. Detect compressed tar files based on the file path
extension.
* tools/abipkgdiff.cc (extract_tar): Define new function.
(extract_package): Handle tar packages.
(main): Handle tar archives.
* tools/abidiff.cc (main): Handle the new FILE_TYPE_TAR
enumerator.
* tools/abilint.cc (main): Likewise.
* tests/data/test-diff-pkg/tarpkg-0-dir{1,2}.ta{,r,.bz2, gz}: New
test input tarballs.
* tests/data/test-diff-pkg/tarpkg-0-report-0.txt: New test output
reference.
* tests/data/Makefile.am: Add the new test data file above to
source distribution.
* tests/test-diff-pkg.cc (in_out_specs): Add new tests cases.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
||
|
Dodji Seketeli
|
d7dbbf0d50 |
Make abipkgdiff compare directories containing binaries
abipkgdiff knows how to compare the ABI of binaries contained in .deb
and .rpm files. This patch adds support for comparing the ABI of
binaries contained in two directories.
* include/abg-tools-utils.h (enum file_type): Add a new
FILE_TYPE_DIR enumerator.
* src/abg-tools-utils.cc (operator<<(ostream&, file_type)):
Support serialization of the new FILE_TYPE_DIR enumerator.
(guess_file_type): Detect that the path given is a directory.
* tools/abipkgdiff.cc (package::package): If the package is a
directory, then set its extracted directory path to the path of
the directory.
(package::erase_extraction_directory): Do not erase the extraction
directory if the package is a directory provided by the user.
(extract_package): If the package is a directory provided by the
user, then there is nothing to extract.
(main): If the first package is a directory, then the second one
should be a directory as well.
* tools/abidiff.cc (main): Support directories as input.
* tools/abilint.cc (main): Likewise.
* tests/data/test-diff-pkg/dirpkg-0-dir{1,2}/libobj-v0.so: New
binary test inputs.
* test/data/test-diff-pkg/dirpkg-0-report-0.txt: New input test
file.
* tests/data/test-diff-pkg/dirpkg-1-dir{1,2}/obj-v0.cc: Source
code of the binary test inputs above.
* tests/data/Makefile.am: Add the new files above to the source
distribution.
* tests/test-diff-pkg.cc (in_out_specs): Add the new test input
files above to the set of tests this harness has to run over.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
||
|
Dodji Seketeli
|
ae5e1be5c3 |
[dwarf reader] Support reference types without explicit DW_AT_byte_size
On x86_64 at least, in the debug info emitted by Clang, reference types don't necessarily have the DW_AT_byte_size property. In that case, assume the size of the pointer type is the address size of the current translation unit, rather than giving up and not building the type. * src/abg-dwarf-reader.cc (build_reference_type): If the type DIE has no DW_AT_byte_size, assume the type size is the translation unit's address size. * tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Adjust. * tests/data/test-read-dwarf/test12-pr18844.so.abi: Adjust. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
||
|
Dodji Seketeli
|
12123aede6 |
[dwarf reader] Support pointer types without explicit DW_AT_byte_size
On x86_64 at least, in the debug info emitted by Clang, pointer types don't necessarily have the DW_AT_byte_size property. In that case, assume the size of the pointer type is the address size of the current translation unit, rather than giving up and not building the type. * abg-dwarf-reader.cc (build_pointer_type_def): If the type DIE has no DW_AT_byte_size, assume the type size is the translation unit's address size. * tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Adjust. * tests/data/test-read-dwarf/test12-pr18844.so.abi: Adjust. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
||
|
Dodji Seketeli
|
ddb17eddba |
Hash a class declaration the same as its definition
A class declaration hashes differently from its definition.
Since the abixml format can now use a class element id before defining
it, it's more consistent to stop representing class declarations in
the abixml format, when the class is actually defined in the corpus.
So this patch now hashes a class declaration the same as its
definition, when the definition is present. If the definition is not
present then the hash value of the declaration is just zero. This is
consistent with what is done elsewhere in the code as a hash value of
zero means the hash could not be computed, somehow, as the type
comparison code knows that a type with hash value zero can be equal to
a type with a hash value that is different from zero.
As a result, many tests which use the abixml format have been adjusted
to reflect the new form of abixml where class declarations are now
omitted when these declarations are accompanied with their definition.
I made sure that abidiff reports that former abixml output and the new
one are equivalent.
After this change abixml outputs should contain less redundant type
declarations. This is another step toward normalizing the abixml
output.
* src/abg-hash.cc (class_decl:#️⃣:operator()(const class_decl&)):
If the class declaration has a definition, hash its definition
instead. Otherwise, if the class declaration has no definition,
just return a zero hash, like what we were doing before.
* src/abg-reader.cc (read_context::maybe_canonicalize_type): Do
not early canonicalize method types because most of the time, when
this function is called, the method hasn't been added to its
parent class yet. So wait until late before canonicalizing.
* src/abg-writer.cc (write_class_is_declaration_only): Do not emit
the "is-declaration-only" property if the declaration has a
definition.
(write_class_decl): If the class declaration has a definition,
emit the definition instead.
* tests/data/test-read-dwarf/test10-pr18818-gcc.so.abi: Adjust.
* tests/data/test-read-dwarf/test12-pr18844.so.abi: Likewise.
* tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Likewise.
* tests/data/test-read-write/test18.xml: Likewise.
* tests/data/test-read-write/test20.xml: Likewise.
* tests/data/test-read-write/test21.xml: Likewise.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
||
|
Dodji Seketeli
|
4f5c0326a4 |
Canonicalize all types that got scheduled for late canonicalization
Until now, when late type canonicalization time come (after having read all of the ABI corpus), the types scheduled for late canonicalization were considered and only those that don't have non-canonicalized sub-types were canonicalized. This patch just canonicalizes all the scheduled type. As a result, all types should now be canonicalized, so type comparison should be as fast as a pointer comparison now. But then, loading DWARF is now even longer, type canonicalization needs to happen. * src/abg-dwarf-reader.cc (read_context::canonicalize_types_scheduled): Canonicalize all types scheduled for late canonicalization. * tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Adjust. * tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Adjust. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
||
|
Dodji Seketeli
|
39b2e8b7d5 |
Make decl_base::get_qualified_name() work when decl context changes
decl_base::get_qualified_name() caches its result. So when it's first called on a decl that is not added to a scope, what is returned is a non-qualified name. Which is all right. But then when the decl is later added to a scope, the cached result of decl_base::get_qualified_name() is not longer correct. This patch resets the cache of decl_base::get_qualified_name() when the decl gets added to a new scope. * include/abg-ir.h (class decl_base): Make class scope_decl a friend of decl_base. (type_base::priv_): Make this protected, rather than private. * src/abg-ir.cc (scope_decl::add_member_decl) (scope_decl::insert_member_decl): Reset the cache of the result of decl_base::get_qualified_name(). * tests/data/test-abidiff/test-PR18791-report0.txt: Adjust. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
||
|
Dodji Seketeli
|
ba5b4452d5 |
Bug 18844 - assert failure in abidw at abg-dwarf-reader.cc:6537
The DWARF reader is not scheduling a declaration-only class for resolution when the class has member types. When reading the code of build_class_type_and_add_to_ir(), we see that the scheduling is done before getting out of the function. But then, building members of the class can trigger another invocation of build_class_type_and_add_to_ir() before the current invocation returns. In that case, the declaration-only class being built appears as not being scheduled for resolution. And that is what violates the assertion that declaration-only classes should be scheduled for resolution whenever they are used. This patch addresses the issue by scheduling the resolution earlier, when we know we are dealing with a declaration-only class, and before dealing with members of that classes. * src/abg-dwarf-reader.cc (build_class_type_and_add_to_ir): Schedule declaration-only class resolution before the class appears as usable as to other types being built. * tests/data/test-read-dwarf/test12-pr18844.so: Add a new binary test input. * tests/data/test-read-dwarf/test12-pr18844.so.abi: The reference ABI XML output for the binary above. * tests/data/Makefile.am: Add the new test inputs above to the source distribution. * tests/test-read-dwarf.cc (in_out_specs): Add the new test inputs above to the set of input this test harness has to run over. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
||
|
Dodji Seketeli
|
f38c19f8da |
Bug 18828 - Handle force-resolving of multiple declarations-only of the same type
When a declaration-only type that is used in a context where it needs to be complete (and no definition is present for that type in the ABI corpus) handle cases where that type is was actually declared several times. * src/abg-dwarf-reader.cc (read_context::resolve_declaration_only_classes): Accept that a class that needs to be force-resolved might have been declared several times. In that case, some instances of that declaration-only class might have already been resolved (or completed). * tests/data/test-read-dwarf/test11-pr18828.so: New binary input. It comes from bug https://sourceware.org/bugzilla/show_bug.cgi?id=18828. * tests/data/test-read-dwarf/test11-pr18828.so.abi: The reference output for the binary above. * tests/data/Makefile.am: Add the test input files above to source distribution. * tests/test-read-dwarf.cc (in_out_specs): Add the test inputs above to the set of input this test harness has to run over. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
||
|
Dodji Seketeli
|
88ae73fdf9 |
Avoid declaring a type several times in the same TU in the XML format
It appears a lot of duplicated type declarations can appear in a given
translation unit. This patch avoids that.
* src/abg-writer.cc (write_context::{record_type_id_as_emitted,
record_type_as_emitted, type_id_is_emitted, type_is_emitted,
clear_emitted_types_map}): New member functions.
(write_context::m_emitted_type_id_map): New data member.
(write_translation_unit): Clear the per-translation unit map of
emitted types. Do not emit a type that has already been emitted
in this translation unit.
(write_namespace_decl): Do not emit a type that has already been
emitted in this translation unit.
(write_type_decl, write_qualified_type_def)
(write_pointer_type_def, write_reference_type_def)
(write_array_type_def, write_typedef_decl, write_class_decl)
(write_type_tparameter, write_template_tparameter): Record the
type we've just written as having been written out.
* tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Adjust as
duplicated declarations got removed.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
||
|
Dodji Seketeli
|
160961f3cb |
Bug 18818 - abidw aborts on a class with a non-complete base class
On some binaries with debug info emitted by "Ubuntu clang version
3.6.0-2ubuntu1" and "GNU C++ 4.9.2" (as the value of the
DW_AT_producer property), it seems some classes can have a base class
that is not complete. E.g, the debug info (that I have extracted
using the command eu-readelf --debug-dump=info
<the-binary-attached-to-the-bug>) has these relevant pieces:
[...]
[ 5ff7] class_type
containing_type (ref4) [ 7485]
name (strp) "system_error"
byte_size (data1) 40
decl_file (data1) 46
decl_line (data1) 22
[ 6003] inheritance
type (ref4) [ 7480]
[...]
Here, we are looking at the type system_error (actually
boost::system::system_error) that inherits the type which DIE is
referred to as offset '7480'.
Then the definition of the DIE at offset 7480 is:
[...]
[ 7480] class_type
name (strp) "runtime_error"
declaration (flag_present)
[ 7485] class_type
name (strp) "exception"
declaration (flag_present)
[...]
You can see that the type "runtime_error" (actually
std::runtime_error) has the flag DW_AT_declaration set, marking it as
a declaration (with no definition yet). And no other DIE in the same
translation unit
(src/third_party/boost-1.56.0/libs/filesystem/src/codecvt_error_category.cpp)
or in the same DSO provides the definition for that declaration.
I believe this is ill-formed. A base class should be defined and have
a layout completed expressed and accessible from the translation unit
it's used in.
The patch I am proposing detects that the base class is still
incomplete when we finish loading the current binary. In that case,
the base class is made complete with a size of 1. Meaning it's an
empty class (with no data member and no base class). This works as a
viable work-around *if* the producer only omitted definitions for
empty classes. We'll need to fix the producers eventually.
* src/abg-dwarf-reader.cc
(read_context::decl_only_classes_to_force_defined_map_): New data
member.
(read_context::declaration_only_classes_to_force_defined): New
accessors.
(read_context::schedule_declaration_only_class_for_forced_resolution):
New member function.
(build_class_type_and_add_to_ir): If a base class is a
declaration-only class then mark it as needing to be force-defined
*if* it's still not defined at the end of the abi corpus loading.
(read_context::resolve_declaration_only_classes): If
declaration-only classes that need to force-defined are present
and not defined (when we reach the end of the ABI corpus) then
force-define them as empty classes.
* tests/data/test-read-dwarf/test10-pr18818-gcc.so: New test
binary input file. This comes from a user binary submitted to bug
https://sourceware.org/bugzilla/show_bug.cgi?id=18818. The
original URL to the binary is
https://sourceware.org/bugzilla/attachment.cgi?id=8518.
* tests/data/test-read-dwarf/test9-pr18818-clang.so: New binary
input file. This comes from the same bug report as above. The
original URL to the binary is
https://sourceware.org/bugzilla/attachment.cgi?id=8511.
* tests/data/test-read-dwarf/test10-pr18818-gcc.so.abi: New
reference output file.
* tests/data/test-read-dwarf/test9-pr18818-clang.so.abi: Likewise.
* tests/data/Makefile.am: Add the new files above to the source
distribution.
* tests/test-read-dwarf.cc (in_out_specs): Add the test inputs
above the set of tests input this harness has to run over.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
||
Matthias Klose
|
4df0a4d952 |
Add support for .deb files to abipkgdiff
This lets abipkgdiff compare debian binary packages. The patch contains test cases for debian package with split debug info that is referenced by the build-id scheme. These test cases come from the bug report https://sourceware.org/bugzilla/show_bug.cgi?id=18792, more particularly from the attachment https://sourceware.org/bugzilla/attachment.cgi?id=8516. * include/abg-tools-utils.h (file_type): Add FILE_TYPE_DEB. * tools/abipkgdiff.cc (extract_deb): New. (extract_package, main): Handle FILE_TYPE_DEB. * src/abg-tools-utils.cc (operator<<): Handle FILE_TYPE_DEB. (guess_file_type): Detect FILE_TYPE_DEB. * tools/abidiff.cc (main): Handle FILE_TYPE_DEB. * tools/abilint.cc (main): Handle FILE_TYPE_DEB. * tests/data/test-diff-pkg/libsigc++-2.0-0c2a-dbgsym_2.4.0-1_amd64.ddeb: Input debian debug info package; to be compared by the test harness runtestdiffpkg. * tests/data/test-diff-pkg/libsigc++-2.0-0c2a_2.4.0-1_amd64.deb: Input debian package; to be compared by the test harness runtestdiffpkg. * tests/data/test-diff-pkg/libsigc++-2.0-0v5-dbgsym_2.4.1-1ubuntu2_amd64.ddeb: Input debug info package * tests/data/test-diff-pkg/libsigc++-2.0-0v5_2.4.1-1ubuntu2_amd64.deb: Input debian package; to be compared by the test harness runtestdiffpkg. * tests/data/test-diff-pkg/libsigc++-2.0-0c2a_2.4.0-1_amd64--libsigc++-2.0-0v5_2.4.1-1ubuntu2_amd64-report-0.txt: Reference output for the comparison of the packages above. * tests/data/Makefile.am: Add the new files above to the source distribution. * tests/test-diff-pkg.cc (in_out_specs): Add the input packages above to the set of files to be compared by this test harness. Signed-off-by: Matthias Klose <doko@debian.org> Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
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Dodji Seketeli
|
242e49a321 |
Bug 18791 - libabigail fails to read the output of abidw
The reader fails to set the access specifier for a member type. Fixed
thus.
* src/abg-reader.cc (read_context::get_scope_for_node): Take an
access_specifier output parameter to set the access specifier of
the current node in its scope. Update the function to set the
access_specifier.
(read_context::build_or_get_type_decl): Adjust to set the access
specifier of the type we are building, in case it's a member type.
* tests/data/test-abidiff/test-PR18791-v{0,1}.so.abi: New test input files.
* tests/data/test-abidiff/test-PR18791-report0.txt: New test
output reference.
* tests/data/Makefile.am: Add the new test material to the source
distribution.
* tests/test-abidiff.cc (specs): Add the new test inputs to the set of
input files this test harness has to run over.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
||
|
Dodji Seketeli
|
9f7c07460d |
Add --no-added-syms to abipkgdiff
With this new option the tool ignores added functions, variables and their symbols. * tools/abipkgdiff.cc (options::show_added_syms): New data member. (options::options): Initialize it. (parse_command_line): Parse the new --no-added-syms option and set the options::show_added_syms flag accordingly. (display_usage): Add a help string for the new option. (set_diff_context_from_opts): Set the diff context according to the state of the new options::show_added_syms flag. * doc/manuals/abipkgdiff.rst: Add manual entry for the new --no-added-syms options. * tests/data/test-diff-pkg/test-rpm-report-5.txt: New test reference input file. * tests/data/Makefile.am: Add the new file above to source distribution. * tests/test-diff-pkg.cc (InOutSpec::prog_options): New data member. (in_out_specs): Adjust. Add a new input to run the test again with --no-added-syms. (main): Adjust to pass the program options contained in InOutSpec::prog_options to abipkgdiff. Signed-off-by: Dodji Seketeli <dodji@redhat.com> fixup! Add --no-added-syms to abipkgdiff Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
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|
Dodji Seketeli
|
a746f4afee |
Make applying supp specs through pointer access look through typedefs
Consider the declaration of the exported function bar() below:
struct _OpaqueType {int member;};
typedef struct _OpaqueType Type;
void bar(Type*);
Once the *definition of struct _OpaqueType and bar() are compiled into
a shared library, if a layout change happens to struct _OpaqueType,
then abidiff rightfully reports that bar() is impacted by the layout
change to struct _OpaqueType.
But then, the following suppression specification won't silence the
ABI change report:
[suppress_type]
name = _OpaqueType
type_kind = struct
accessed_through = pointer
This is because strictly speaking, it's not struct _OpaqueType that is
accessed through a pointer, from function bar(); it's the type 'Type',
(which is a typedef of struct _OpaqueType) that is accessed though a
pointer.
But then, as 'Type' and 'struct _OpaqueType' are the same type (modulo
the typedef), this behaviour is not super useful. It would be more
interesting if the suppression specification could silence the ABI
change report.
And this is what this patch does.
* include/abg-comparison.h (type_suppression::suppresses_type):
Declare new member function.
(get_typedef_diff_underlying_type_diff): Declare new function.
* include/abg-fwd.h (get_typedef_underlying_type): Likewise.
* src/abg-comparison.cc (type_suppression::suppresses_type):
Define new member function.
(get_typedef_diff_underlying_type_diff): Define new function.
(type_suppression::suppresses_diff): After looking through the
different kind of access methods, use the new
type_suppression::suppresses_type(), rather than doing lots of
stuff ourselves here. But then, if the suppression doesn't apply
to the subjects of the diff, look through typedefs and try to
apply the suppression again.
* src/abg-ir.cc (get_typedef_underlying_type): Define new
function.
* tests/data/test-diff-suppr/libtest25-typedef-v{0,1}.so: New
binary test input files.
* tests/data/test-diff-suppr/test25-typedef-v{0,1}.c: Source code
for the binary test input files above.
* tests/data/test-diff-suppr/test25-typedef-report-{0, 1}.txt: New test
input files.
* tests/data/test-diff-suppr/test25-typedef-suppr-0.txt: New test
input file.
* tests/data/Makefile.am: Add the new test material to the source
distribution.
* tests/test-diff-suppr.cc (in_out_specs): Add the test inputs
above to the set of test inputs this harness has to run over.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
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|
Dodji Seketeli
|
88a1e8d6a0 |
Make the name of the removed variable section be consistent
The removed functions section is introduced by the string "Removed functions", whereas the removed variables section is introduced by the string "Deleted variables". This patch makes the latter be "Removed variables" just like for the functions. * src/abg-comparison.cc (corpus_diff::report): Introduce the section of removed variables with the string "Removed variable", rather than with the string "Deleted variable". * tests/data/test-abicompat/test2-var-removed-report-0.txt: Adjust. * tests/data/test-diff-suppr/test18-suppr-removed-var-report-0.txt: Likewise. * tests/data/test-diff-suppr/test18-suppr-removed-var-report-3.txt: Likewise. * tests/data/test-diff-suppr/test18-suppr-removed-var-report-5.txt: Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
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|
Dodji Seketeli
|
e5cf9d1f60 |
Consider default symbol versions when computing added/removed fns/vars
When computing the set of added function or variable symbols, if a
symbol S with no version symbol was present in a given corpus and that
symbol gained a *DEFAULT* version V in the second corpus, we should
not consider that a new symbol S was added (and that the former S was
removed) because:
1/ S was already present in the first corpus
2/ applications linked to the first corpus and that were using S
(with no version) there, will automatically use the S with version V
in the second corpus, without needing any re-linking; the
power of symbol versioning!
Rather, it's just that S gained a default symbol version.
This patch implements that.
* include/abg-corpus.h (corpus::{lookup_function_symbol,
lookup_variable_symbol}): Take a elf_symbol::version object,
rather than a string representing the version. Add an overload
that takes an elf_symbol.
* src/abg-corpus.cc (find_symbol_by_version): New static function.
(corpus::{lookup_function_symbol, lookup_variable_symbol}): Take a
elf_symbol::version object, rather than a string representing the
version. Add an overload that takes an elf_symbol. If the looked
up symbol has no version and if the corpus contains a symbol with
the same name and with a default version, then return that latter
symbol if the corpus doesn't contain a symbol with the same name
and empty version.
* src/abg-comparison.cc
(class_diff::ensure_lookup_tables_populated): Adjust.
(corpus_diff::priv::ensure_lookup_tables_populated): Before
deciding that a symbol has been added, if the symbol has a default
version, make sure no symbol with the same name and without
version was present in the former corpus. Similarly, before
deciding that a symbol has been removed, if the symbol has no
version, make sure the latter corpus has no symbol with the same
name and with a default version.
* tests/data/test-diff-dwarf/test12-report.txt: Adjust. The
function should not be considered as added, because its symbol
(and version) was already present in the former DSO.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
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Dodji Seketeli
|
819f8941cf |
Show linkage names in abipkgdiff output
With this patch abipkgdiff now shows the linkage names of added/removed functions and variables. In addition, there now is a --no-linkage-name option to avoid seeing linkage names. * doc/manuals/abipkgdiff.rst: Document the new --no-linkage-name options. * tools/abipkgdiff.cc (options::show_linkage_names): New data member. (options::options): Initialize it. (display_usage): Display a usage string for --no-linkage-name. (parse_command_line): Parse the --no-linkage-name option. (set_diff_context_from_opts): Set the diff context accordingly. * tests/data/test-diff-pkg/test-rpm-report-0.txt: Adjust. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
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Dodji Seketeli
|
0cf1828a90 |
Fix type synthesis to fix abicompat weak mode
While looking further in the issue Sinny Kumari reported, I realized that the weak mode wasn't working in that example either. It turned out that synthesizing qualified types was not working because we were just looking them up in the binary, rather than looking up the un-qualified underlying type and then synthezing the resulting qualified type. This patch just does that. * include/abg-fwd.h (synthesize_type_from_translation_unit): Declare new function. (synthesize_function_type_from_translation_unit): Make the translation_unit parameter non-const because the function needs to bind the life time of the synthesized function to the life time of the translation unit. Make this function be a friend of abigail::ir::translation_unit. (synthesize_function_type_from_translation_unit): * src/abg-ir.cc (translation_unit::priv::synthesized_types_): New data member. (synthesize_type_from_translation_unit): Define new function. (synthesize_function_type_from_translation_unit): Make the translation_unit parameter non-const. If the return is void, then take that in account carefuly. Rather than just looking up the type of parameters and return value, synthesize them too, especially when they are qualified types. Bind the life time of the synthesized function type to the lifetime of the translation unit. * tests/data/test-abicompat/test7-fn-changed-report-1.txt: New test reference output. * tests/test-abicompat.cc (in_out_spec): Run the harness on the exisiting test7-fn-changed-app and libtest7-fn-changed-libapp-v1 but in weak mode this time. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
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Dodji Seketeli
|
92b821034a |
Clean up the output of abicompat weak mode
Remove ugly vertical spaces from the output of abicompat in weak mode and adjust regression tests accordingly. * tools/abicompat.cc (perform_compat_check_in_weak_mode): Remove disgracious vertical spaces in the wording. * tests/data/test-abicompat/test5-fn-changed-report-0.txt: Adjust. * tests/data/test-abicompat/test6-var-changed-report-0.txt: Adjust. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
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Dodji Seketeli
|
af2a94defa |
Fix computing the set of exported functions and varible symbols
Sinny Kumari reported that abicompat is failing to report ABI changes
on a library linked to a small test program. It turned out that the
code that compute if a given exported function is to be kept by
looking at the white list of symbols to keep has a bug in which the
versions of the symbols of the white list were not being reset as they
should. Fixed thus.
* src/abg-ir.cc (elf_symbol::get_name_and_version_from_id): Always
set the version and name of the symbol.
* src/abg-corpus.cc
(corpus::exported_decls_builder::{keep_wrt_id_of_fns_to_keep,
keep_wrt_id_of_vars_to_keep}): Reset the symbol name *and* version
before passing it. This is redundant with the fix in
elf_symbol::get_name_and_version_from_id() that always set the
symbol name and version now, but I felt it makes it easier to
understand the fix overall.
* tests/data/test-abicompat/libtest7-fn-changed-libapp-v{0,1}.so:
New test input binaries.
* tests/data/test-abicompat/test7-fn-changed-app: Likewise.
* tests/data/test-abicompat/test7-fn-changed-{app, libapp-v0,
libapp-v1}.c: Source code of the binary test inputs above.
* * tests/data/test-abicompat/test7-fn-changed-{libapp-v0,
libapp-v1}.h: Likewise.
* tests/data/test-abicompat/test7-fn-changed-report-0.txt: Test
input.
* tests/data/Makefile.am: Add the new test material above to
source distribution.
* tests/test-abicompat.cc (int_out_specs): Add the test inputs
above to the set of inputs this test harness has to run over.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
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Dodji Seketeli
|
7cae79e0d8 |
On changed fn, show symbol info when name is different from linkage name in C
In change reports for function sub-type changes, for the C language,
when the name of the function is different from its linkage name, even
when the function symbol has no aliases, show the symbol information
of the function.
* include/abg-ir.h (translation_unit::language): New enum type.
(translation_unit::{get_language, set_language}): Declare new
accessors.
(translation_unit_language_to_string)
(string_to_translation_unit_language, is_c_language)
(is_cplus_plus_language): Declare new functions.
* src/abg-ir.cc (translation_unit::priv::language_): New data
member.
(translation_unit::priv::language_): Initialize it.
(translation_unit::{set_language, get_language}): Define new
member functions.
(translation_unit_language_to_string)
(string_to_translation_unit_language, is_c_language)
(is_cplus_plus_language): Define new functions.
* src/abg-dwarf-reader.cc (dwarf_language_to_tu_language): New
static function.
(build_translation_unit_and_add_to_ir): Read the language of the
translation unit.
* src/abg-comparison.cc (corpus_diff::report): When reporting a
change in a function sub-type, if we are in C language translation
unit, if the function name is different from its linkage name,
even if the symbol doesn't have any alias, show symbol
information.
* src/abg-reader.cc (read_translation_unit_from_input): Read the
'language' property of the translation unit, if present.
* src/abg-writer.cc (write_translation_unit): Write the 'language'
property to the translation unit, if present.
* tests/data/test-read-dwarf/test0.abi: Adjust for the new
'language' property of the 'abi-instr' element.
* tests/data/test-read-dwarf/test1.abi: Likewise.
* tests/data/test-read-dwarf/test2.so.abi: Likewise.
* tests/data/test-read-dwarf/test3.so.abi: Likewise.
* tests/data/test-read-dwarf/test4.so.abi: Likewise.
* tests/data/test-read-dwarf/test5.o.abi: Likewise.
* tests/data/test-read-dwarf/test6.so.abi: Likewise.
* tests/data/test-read-dwarf/test7.so.abi: Likewise.
* tests/data/test-read-dwarf/test8-qualified-this-pointer.so.abi:
Likewise.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
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Dodji Seketeli
|
f3ed9dfa92 |
Support file_name_regexp and soname_regexp in supp-specs
With this patch it's now possible to express the soname or name of the binary
file that contains the ABI artifacts the suppression specifications
should apply to.
* include/abg-comparison.h (suppression_base::priv_): Make this
pimpl member protected.
(suppression_base::set_file_name_regex_str)
(get_file_name_regex_str, get_soname_regex_str)
(set_soname_regex_str): Declare new accessors.
(function_suppression::{suppresses_function,
suppresses_function_symbol}): Take a diff_context_sptr.
(variable_suppression::{suppresses_variable,
suppresses_variable_symbol}): Take a diff_context_sptr.
* src/abg-comparison.cc
(suppression_base::priv::{file_name_regex_str_, file_name_regex_,
soname_regex_str_, soname_regex_}): Define new data members.
(suppression_base::priv::get_file_name_regex_str)
(get_soname_regex_str): Define new member functions.
(suppression_base::set_file_name_regex_str)
(get_file_name_regex_str, get_soname_regex_str)
(set_soname_regex_str): Define new accessors.
(type_suppression::suppresses_diff): Evaluate file_name_regexp and
soname_regexp.
(read_type_suppression): Fix the reading of the "label" property.
Read the file_name_regexp and soname_regexp properties.
(function_suppression::{suppresses_function,
suppresses_function_symbol): Take a diff_context_sptr parameter.
Evaluate file_name_regexp and soname_regexp properties.
(function_suppression::suppresses_diff): Adjust for the api change
of function_suppression::suppresses_function().
(read_function_suppression): Read the file_name_regexp and
soname_regexp properties.
(variable_suppression::suppresses_variable): Take a
diff_context_sptr parameter and evaluate file_name_regexp and
soname_regexp properties.
(variable_suppression::suppresses_variable_symbol): Likewise.
(variable_suppression::suppresses_diff): Adjust for the api change
of variable_suppression::suppresses_variable().
(read_variable_suppression): Read the file_name_regexp and
soname_regexp properties.
(function_is_suppressed, variable_is_suppressed): Take a
diff_context_sptr parameter.
(corpus_diff::priv::apply_suppressions_to_added_removed_fns_vars):
Adjust.
* doc/manuals/libabigail-concepts.rst: Document file_name_regexp
and soname_regexp in the manual.
* tests/data/test-diff-suppr/libtest24-soname-v{0,1}.so: New test
binary input files.
* tests/data/test-diff-suppr/test24-soname-report-{0,4}.txt: New
test input files.
* tests/data/test-diff-suppr/test24-soname-suppr-{0,4}.txt:
Likewise.
* tests/data/test-diff-suppr/test24-soname-v{0,1}.cc: Source code
of the binary test input files above.
* tests/data/Makefile.am: Add the new test material above to
source distribution.
* tests/test-diff-suppr.cc (in_out_spec): Add the new test inputs
to the set of tests this harness has to run over.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
|
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Sinny Kumari
|
260b92f5df |
Add regression tests for abipkgdiff tool
Add tests for the abipkgdiff tool. The tests runs abipkgdiff on RPM packages. RPMs for test data are taken from Fedora koji build with build id - 106158 and 648058 * tests/Makefile.am: Build new runtestdiffpkg regression test * tests/data/Makefile.am: Add new test files to source * tests/data/test-diff-pkg/dbus-glib-0.104-3.fc23.x86_64.rpm: Test data for abipkgdiff tool * tests/data/test-diff-pkg/dbus-glib-0.80-3.fc12.x86_64.rpm: Likewise * tests/data/test-diff-pkg/dbus-glib-debuginfo-0.104-3.fc23.x86_64.rpm: Likewise * tests/data/test-diff-pkg/dbus-glib-debuginfo-0.80-3.fc12.x86_64.rpm: Likewise * tests/data/test-diff-pkg/test-rpm-report-0.txt: Expected test output * tests/data/test-diff-pkg/test-rpm-report-1.txt: Likewise * tests/data/test-diff-pkg/test-rpm-report-2.txt: Likewise * tests/data/test-diff-pkg/test-rpm-report-3.txt: Likewise * tests/data/test-diff-pkg/test-rpm-report-4.txt: Likewise * tests/test-diff-pkg.cc: New file Signed-off-by: Sinny Kumari <sinny@redhat.com> |
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Dodji Seketeli
|
f154ff8db1 |
Remove extra vertical spaces from diff report
* src/abg-comparison.cc (class_diff::report): Do not emit new line unless the diff is to be reported. * tests/data/test-diff-filter/test25-cyclic-type-report-0.txt: Adjust. * tests/data/test-diff-filter/test26-qualified-redundant-node-report-0.txt: Adjust. * tests/data/test-diff-filter/test27-redundant-and-filtered-children-nodes-report-1.txt: : Adjust. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
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Dodji Seketeli
|
f2175b70cc |
Adjust some tests for output changes
After commit "8a4b0c9 Fix missing newlines in diff report", I forgot to adjust some test reference outputs, leading to some test failures. Fixed thus. * tests/data/test-abidiff/test-struct1-report.txt: Adjust. * tests/data/test-diff-dwarf/test10-report.txt: Likewise. * tests/data/test-diff-dwarf/test11-report.txt: Likewise. * tests/data/test-diff-dwarf/test13-report.txt: Likewise. * tests/data/test-diff-filter/test2-report.txt: Likewise. * tests/data/test-diff-filter/test26-qualified-redundant-node-report-0.txt: Likewise. * tests/data/test-diff-filter/test26-qualified-redundant-node-report-1.txt: Likewise. * tests/data/test-diff-filter/test27-redundant-and-filtered-children-nodes-report-1.txt: Likewise. * tests/data/test-diff-filter/test27-redundant-and-filtered-children-nodes-report-2.txt: Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com> |
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Dodji Seketeli
|
fe9fa7a05f |
Support filtering out just one alias of a function
Suppose a function private_foo() has a symbol private_foo and also a
another one (an alias) named public_foo. Then suppose we want to
filter out sub-type changes to private_foo(). But then we still want
to see changes to public_foo.
This patch does add this feature. The [suppress_function] directive
now has a new (hidden) boolean 'allow_other_aliases' property. When
set to 'yes' or 'true', if the function being looked at has an alias
symbol that does *NOT* match the other properties of the directive,
then the directive doesn't suppress reports for the function. This
new property is set to yes by default.
This means that when a function has got multiple aliases, to suppress
the function, one needs to write a regular expression that matches the
names of aliases. Otherwise the function will not be suppressed.
* include/abg-comparison.h (function_suppression::{get,
set}_allow_other_aliases): Declare new member functions.
* src/abg-comparison.cc
(function_suppression::priv::allow_other_aliases_): New data
member.
(function_suppression::priv::priv): Initialize it to 'true'.
(function_suppression::{get, set}_allow_other_aliases): Define new
member functions.
(read_function_suppression): Parse the new "allow_other_aliases"
property.
(function_suppression::suppresses_function): Update to evaluate
the new 'allow_other_aliases' property when there is a property to
match against some a symbol name of the function.
(corpus_diff::report): Fix the printing of function aliases when
printing sub-type changes to properly emit the plural of the word
'symbol' when the function has several aliases.
* include/abg-ir.h (elf_symbol::get_number_of_aliases): Declare
new member function.
* src/abg-ir.cc (elf_symbol::get_number_of_aliases): Define new
member function.
* doc/manuals/libabigail-concepts.rst: Update manual.
* tests/data/test-diff-dwarf/test5-report.txt: Adjust.
* tests/data/test-diff-suppr/libtest23-alias-filter-v0.so: New
test input.
* tests/data/test-diff-suppr/libtest23-alias-filter-v1.so: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-0.suppr: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-1.suppr: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-2.suppr: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-3.suppr: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-4.suppr: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-report-0.txt: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-report-1.txt: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-report-2.txt: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-report-3.txt: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-report-4.txt: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-report-5.txt: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-v0.c: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-v1.c: Likewise.
* tests/data/test-diff-suppr/test23-alias-filter-version-script: Likewise.
* tests/data/Makefile.am: Add the new test stuff to source
distribution.
* tests/test-diff-suppr.cc (in_out_spec): Add the tests inputs
above to the list of input to run over.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
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