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721728e7de
Libabigail's DWARF reader doesn't read the DT_SONAME tag from the
.dynamic section. The abigail::corpus type doesn't have a property
for that tag either. And the comparison engine doesn't take that tag
in when comparing corpora.
This patch modifies the DWARF reader to read the DT_SONAME and
DT_NEEDED tags from the .dynamic section. The value of DT_SONAME tag
is then saved in the new corpus property accessed by the new
abigail::corpus::get_soname() accessor. The comparison engine has
also been modified to compare the sonames of two corpora being
compared. Note that the value of the DT_NEEDED elf tag is saved in a
new corpus property that is accessed via the new
abigail::corpus::get_needed() getter. This property is not used yet.
This patch also adds a unit test for this new feature.
* include/abg-corpus.h (corpus::{get_needed, set_needed,
get_soname, set_soname}): Declare new accessors.
* src/abg-corpus.cc (corpus::priv::{needed, soname}): New data
members.
(corpus::{get_needed, set_needed, get_soname, set_soname}): Define
new accessors.
(corpus::is_empty): Take dt_needed and dt_soname in account in
computing empty-ness.
* src/abg-dwarf-reader.cc (read_context::{dt_needed_,
dt_soname_}): New data members.
(read_context::{dt_needed, dt_soname}): New accessors.
(read_context::load_dt_soname_and_needed): New member function.
(read_corpus_from_elf): Call the new
read_context::load_dt_soname_and_needed() to read the dt_soname
and dt_needed tags. Set them to the corpus.
* include/abg-comparison.h (diff_context::show_soname_change):
Declare new accessors.
* src/abg-comparison.cc (diff_context::priv::show_soname_change_):
New data member.
(diff_context::priv::priv): Initialize the new data member
diff_context::priv::show_soname_change_.
(diff_context::show_soname_change): Define new accessors.
(corpus_diff::priv::sonames_equal_): New data member.
(corpus_diff::priv::priv): Initialize the new data member
corpus_diff::priv::sonames_equal_.
(corpus_diff::length): Take the new priv_->sonames_equals_ data
member in account.
(corpus_diff::{report, priv::emit_diff_stats}): If the sonames
changed and we are allowed to report it, then report it.
(compute_diff): In the variant for corpus_diff, do not forget to
compare the sonames.
* src/abg-reader.cc (build_needed, read_elf_needed_from_input):
Define new static functions.
(read_corpus_from_input): Read the 'soname' attribute from the
'abi-corpus' xml element node.
* src/abg-writer.cc (write_elf_needed): Define new static
function.
(write_corpus_to_native_xml): Write a new 'elf-needed' xml element
node that contains one xml 'dependency' element node per
dependency to emit. This uses the new write_elf_needed() function
above.
* tests/data/test-diff-dwarf/libtest19-soname-v0.so: New test
input data.
* tests/data/test-diff-dwarf/libtest19-soname-v1.so: Likewise.
* tests/data/test-diff-dwarf/test19-soname-report-0.txt: Likewise.
* tests/data/test-diff-dwarf/test19-soname-v0.c: Source code of
the first binary above.
* tests/data/test-diff-dwarf/test19-soname-v1.c: Source code of
the second binary above.
* tests/test-diff-dwarf.cc (in_out_specs): Add the test input
above to the list of test input to run this harness on.
* tests/data/Makefile.am: Add the new test input data above.
* tests/data/test-read-dwarf/test{0,1}.abi: Adjust.
* tests/data/test-read-dwarf/test{2,3,4,6,}.so.abi: Adjust.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
43 lines
3.1 KiB
Plaintext
43 lines
3.1 KiB
Plaintext
<abi-corpus path='data/test-read-dwarf/test6.so'>
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<elf-needed>
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<dependency name='libstdc++.so.6'/>
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<dependency name='libm.so.6'/>
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<dependency name='libgcc_s.so.1'/>
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<dependency name='libc.so.6'/>
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</elf-needed>
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<elf-function-symbols>
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<elf-symbol name='_Z3barv' type='func-type' binding='global-binding' is-defined='yes'/>
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<elf-symbol name='_Z4blehv' type='func-type' binding='global-binding' is-defined='yes'/>
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<elf-symbol name='_ZN1B3fooEv' type='func-type' binding='weak-binding' is-defined='yes'/>
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<elf-symbol name='_fini' type='func-type' binding='global-binding' is-defined='yes'/>
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<elf-symbol name='_init' type='func-type' binding='global-binding' is-defined='yes'/>
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</elf-function-symbols>
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<elf-variable-symbols>
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<elf-symbol name='_ZN1CIiE3barE' type='object-type' binding='gnu-unique-binding' is-defined='yes'/>
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<elf-symbol name='_ZZN1B3fooEvE1a' type='object-type' binding='gnu-unique-binding' is-defined='yes'/>
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</elf-variable-symbols>
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<abi-instr version='1.0' address-size='64' path='test6.cc'>
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<class-decl name='B' size-in-bits='8' is-struct='yes' visibility='default' filepath='/home/skumari/Tasks/source_repo/dodji/libabigail/tests/data/test-read-dwarf/test6.cc' line='9' column='1' id='type-id-1'>
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<member-function access='public'>
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<function-decl name='foo' mangled-name='_ZN1B3fooEv' filepath='/home/skumari/Tasks/source_repo/dodji/libabigail/tests/data/test-read-dwarf/test6.cc' line='11' column='1' visibility='default' binding='global' size-in-bits='64' alignment-in-bits='64' elf-symbol-id='_ZN1B3fooEv'>
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<parameter type-id='type-id-2' is-artificial='yes'/>
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<return type-id='type-id-3'/>
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</function-decl>
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</member-function>
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</class-decl>
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<type-decl name='int' size-in-bits='32' alignment-in-bits='32' id='type-id-3'/>
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<pointer-type-def type-id='type-id-1' size-in-bits='64' alignment-in-bits='64' id='type-id-2'/>
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<function-decl name='bar' mangled-name='_Z3barv' filepath='/home/skumari/Tasks/source_repo/dodji/libabigail/tests/data/test-read-dwarf/test6.cc' line='19' column='1' visibility='default' binding='global' size-in-bits='64' alignment-in-bits='64' elf-symbol-id='_Z3barv'>
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<return type-id='type-id-3'/>
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</function-decl>
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<function-decl name='bleh' mangled-name='_Z4blehv' filepath='/home/skumari/Tasks/source_repo/dodji/libabigail/tests/data/test-read-dwarf/test6.cc' line='34' column='1' visibility='default' binding='global' size-in-bits='64' alignment-in-bits='64' elf-symbol-id='_Z4blehv'>
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<return type-id='type-id-3'/>
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</function-decl>
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<class-decl name='C<int>' size-in-bits='8' is-struct='yes' visibility='default' filepath='/home/skumari/Tasks/source_repo/dodji/libabigail/tests/data/test-read-dwarf/test6.cc' line='26' column='1' id='type-id-4'>
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<data-member access='public' static='yes'>
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<var-decl name='bar' type-id='type-id-3' mangled-name='_ZN1CIiE3barE' visibility='default' filepath='/home/skumari/Tasks/source_repo/dodji/libabigail/tests/data/test-read-dwarf/test6.cc' line='31' column='1' elf-symbol-id='_ZN1CIiE3barE'/>
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</data-member>
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</class-decl>
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</abi-instr>
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</abi-corpus>
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