libabigail/tests/data/test-diff-dwarf/test17-non-refed-syms-v0.cc

// Compile this with:
// g++ -g -Wall -c test17-non-refed-syms-v0.cc

void
foo()
{
}
Support comparing symbols not referenced by debug info * doc/manuals/abidiff.rst: Adjust intro to mention that w/o debug info, abidiff now works but just report about added/removed symbols. Add documentation about the new --no-unreferenced-symbols option. * include/abg-comparison.h (string_elf_symbol_map): New typedef. (diff_context::show_symbols_unreferenced_by_debug_info): Declare new accessors. * src/abg-comparison.cc (diff_context::priv::show_syms_unreferenced_by_di_): New data member. (diff_context::priv::priv): Adjust. (diff_context::show_symbols_unreferenced_by_debug_info): Implement these accessors. (corpus_diff::priv::{unrefed_fn_syms_edit_script_, unrefed_var_syms_edit_script_, added_unrefed_fn_syms_, deleted_unrefed_fn_syms_, added_unrefed_var_syms_, deleted_unrefed_var_syms_}): New data members. (corpus_diff::priv::diff_stats::{num_func_syms_removed, num_func_syms_added, num_var_syms_removed, num_var_syms_added}): New data members. (corpus_diff::priv::diff_stats::diff_stats): Adjust. (corpus_diff::ensure_lookup_tables_populated): Populate lookup tables for added/removed symbols that are not referenced by any debug info. (corpus_diff::priv::apply_filters_and_compute_diff_stats): Compute stats for the added/removed symbols not referenced by any debug info. (corpus_diff::priv::emit_diff_stats): Emit stats about added/removed symbols that are not referenced by any debug info. (corpus_diff::length): Adjust to take in account added/removed symbols not referenced by any debug info. (show_linkage_name_and_aliases): New static function. (corpus_diff::report): When emitting a symbol name, emit its version too, and tell if it aliases other symbols. Avoid emitted extra new lines. Report added/removed symbols not referenced by any debug info. (compute_diff): In the overload for corpus_sptr, compute the diffs for symbols not referenced by debug info. * include/abg-corpus.h (corpus::get_unreferenced_{function,variable}_symbols): Declare new member functions. * src/abg-corpus.cc (corpus_priv::{unrefed_fun_symbols, unrefed_var_symbols}): New data members. (corpus_priv::build_unreferenced_symbols_tables): Define new member function. (struct comp_elf_symbols_functor): New functor. (corpus::is_empty): Adjust to take in account added/removed symbols not referenced by debug info. (corpus::{get_unreferenced_function_symbols, corpus::get_unreferenced_variable_symbols}): Define these accessors. * include/abg-dwarf-reader.h (enum status): Transform this into bitfields. Add a STATUS_UNKNOWN value that has the value 0. (operator\|(status, status), operator&(status, status)) (operator\|=(status&, status), operator&=(status, status)): New bit-wise operators to manipulate instances of the status bit-field. * src/abg-dwarf-reader.cc (get_version_for_symbol): Fix this to avoid returning garbage version sometimes. (read_debug_info_into_corpus): Fix this to return a non-null but empty corpus_sptr when there is no debug info available. (operator\|(status, status), operator&(status, status)) (operator\|=(status&, status), operator&=(status, status)): Define these new bitwise operators to manipulate instances of the status bit-field. (read_corpus_from_elf): Now that the abigail::dwarf_reader::status is a bit-field, set it to reflect if debug info and/or symbol tables have been found. Do not bail out if debug info hasn't been found. Rather, keep going, and go look for symbols-only; this is a kind of operating in degraded mode. * include/abg-ir.h (elf_symbol::get_aliases_id_string): Add a flag that says if the current instance of elf_symbol should be included in the list of aliases or not. * src/abg-ir.cc (elf_symbol::get_aliases_id_string): Define it. * tests/data/test-diff-dwarf/test16-syms-only-v{0,1}.o: New test input. * tools/abidiff.cc (options::show_symbols_not_referenced_by_debug_info): New data member. (options:options): Adjust. (display_usage): Add an info string for the new --no-unreferenced-symbols command line option. (parse_command_line): Parse the new --no-unreferenced-symbols command line. (set_diff_context_from_opts): Set the diff_context according to the presence of --no-unreferenced-symbols. (main): Adjust for the fact that abigail::dwarf_reader::status is now a bit-field. * tools/abilint.cc (main): Adjust for the fact that abigail::dwarf_reader::status is now a bit-field.. (): * tests/data/test-diff-dwarf/test16-syms-only-report.txt: New test reference output. * tests/data/test-diff-dwarf/test16-syms-only-v{0,1}.cc: Source code for new test input. * tests/data/test-diff-dwarf/test17-non-refed-syms-v{0,1}.o: New test input. * tests/data/test-diff-dwarf/test17-non-refed-syms-v{0,1}.cc: New source code for test input. * tests/data/test-diff-dwarf/libtest18-alias-sym-v{0,1}.so: New test input. * tests/data/test-diff-dwarf/test18-alias-sym-report-0.txt: Reference output for new test input. * tests/data/test-diff-dwarf/test18-alias-sym-v{0,1}.cc: Source code for new test input. * tests/data/test-diff-dwarf/test18-alias-sym-version-script: Source code for new test input. * tests/Makefile.am: Add the new test materials to the source distribution. * tests/test-diff-dwarf.cc(in_out_specs): Add the new input tests above to the array of tests to run by this harness. (main): Emit empty reports for empty resulting diffs. * tests/data/test-diff-dwarf/test{0,8,9,12,14-inline-report,}-report.txt: Adjust. * tests/data/test-diff-filter/test{0,01,2,4,5,7,8,9,10,12,13,15-0,15-1}-report.txt: Likewise. * tests/data/test-diff-filter/test{19-enum,20-inline,}-report-0.txt: Likewise. * tests/data/test-diff-suppr/test0-type-suppr-report-{1,2}.txt: Likewise. * tests/data/test-diff-suppr/test{1,2}-typedef-suppr-report-1.txt: Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com> 2014-10-22 16:05:31 +00:00			`// Compile this with:`
			`// g++ -g -Wall -c test17-non-refed-syms-v0.cc`

			`void`
			`foo()`
			`{`
			`}`