2 Commits

Author	SHA1	Message	Date
Dodji Seketeli	ce1278c3da	Initial support for elf symbol (versionning) during decl comparison ... * include/abg-fwd.h (get_linkage_name): Remove. * include/abg-dwarf-reader.h (enum symbol_type) (enum symbol_binding): Move these into abg-ir.h. (lookup_symbol_from_elf, lookup_public_function_symbol_from_elf): Adjust. * src/abg-dwarf-reader.cc (eval_last_constant_dwarf_sub_expr): Declare this before using it. (die_address_attribute, die_location_address) (stt_to_elf_symbol_type, stb_to_elf_symbol_binding) (find_hash_table_section_index, find_symbol_table_section) (find_symbol_table_section_index, find_text_section) (find_bss_section, compare_symbol_name) (get_symbol_versionning_sections get_version_for_symbol) (lookup_symbol_from_sysv_hash_tab) (lookup_symbol_from_gnu_hash_tab, get_elf_class_size_in_bytes) (bloom_word_at, setup_gnu_ht, lookup_symbol_from_elf_hash_tab) (lookup_symbol_from_symtab, maybe_adjust_fn_sym_address) (maybe_adjust_var_sym_address): New static functions. (enum hash_table_kind): New enum. (struct gnu_ht): New struct. (read_context::var_decls_to_add_): Renamed var_decls_to_add into this. (read_context::{fun, var}_sym_addr_sym_index_map_): New member. (read_context::{lookup_symbol_from_elf, lookup_elf_symbol_from_index, lookup_elf_fn_symbol_from_address, lookup_elf_var_symbol_from_address, fun_sym_addr_sym_index_map, var_sym_addr_sym_index_map, load_symbol_addr_to_index_maps, get_function_address, get_variable_address}): New member functions. (read_context::lookup_public_{variable, function}_symbol_from_elf): Adjust. (op_pushes_constant_value): Fix a bug here. (lookup_symbol_from_elf): Adjust. Support cases where there is no elf hash table, e.g, for relocatable files. (lookup_public_function_symbol_from_elf) (lookup_public_variable_symbol_from_elf): Adjust. (build_var_decl): Allow updating the var_decl to associate it with its underlying symbol. In that case, if the linkage name is not set, set it to the symbol name. (build_function_decl): Likewise for function_decl. (operator<<(std::ostream&, symbol_type)): (operator<<(std::ostream&, symbol_binding)): Move these do abg-ir.cc. * include/abg-ir.h (class elf_symbol): Declare new class. Move enum symbol_binding and enum symbol_type (from abg-dwarf-reader.h) to elf_symbol::binding and elf_symbol::type here. (operator<<(std::ostream&, elf_symbol::type)) (operator<<(std::ostream&, elf_symbol::binding)) (operator==(const elf_symbol_sptr, const elf_symbol_sptr)): New operators. (class elf_symbol::version): Declare new class. (class var_decl): Make this pimpl, and add ... (var_decl::{g,s}et_symbol): ... new member functions. (class function_decl): Likewise, make this pimpl and add ... (function_decl::{g,s}et_symbol): ... new member functions. * src/abg-ir.cc (struct elf_symbol, elf_symbol::priv): New types. (elf_symbol::*): Lots of new members and member functions. (operator==(const elf_symbol_sptr, const elf_symbol_sptr)): New. (operator<<(std::ostream&, elf_symbol::type)): New. (operator<<(std::ostream&, elf_symbol::binding)): New. (elf_symbol::version::priv): New type. (elf_symbol::version::*): Lots of member functions. (get_linkage_name): Removed. (var_decl::priv): New type. Pimplify the thing. (var_decl::{s,g}et_symbol): New. (var_decl::operator==): Take symbols in account in the comparison. (function_decl::priv): New type. (function_decl::*): Pimplify. (function_decl::{s,g}et_symbol): New. (function_decl::operator==): Take symbols in account in the comparison. * include/abg-comparison.h (diff_context::show_linkage_name): New member function. * src/abg-comparison.cc (diff_context::priv::show_linkage_name_): New member. (diff_context::priv::priv): Initialize it. (diff_context::show_linkage_names): New member function. (corpus_diff::report): If the user used --show-linkage-names, display the linkage name after the name of the functions. Add missing "'" in the some spots. * tools/bidiff.cc (options.show_linkage_names): New member. (display_usage, parse_command_line): Support --linkage-names. * tools/bisym.cc (show_help): Add '\n' at the end of help string for --demangle. Add --no-absolute-path option. (parse_command_line): Support --no-absolute-path. (main): Adjust for symbol (versionning) support. Consider that the program successfully completed even when the symbol wasn't found. Support --no-absolute-path. * tests/data/test-lookup-syms/test0-report.txt: New. * tests/data/test-lookup-syms/test01-report.txt: New. * tests/data/test-lookup-syms/test02-report.txt: New. * tests/data/test-read-dwarf/test0.abi: Adjust. * tests/data/test-read-dwarf/test1.abi: Adjust. * tests/data/test-diff-dwarf/test7-report.txt: Adjust. * tests/data/test-diff-filter/test10-report.txt: Adjust. * tests/data/test-diff-filter/test12-report.txt: Adjust. * tests/data/test-lookup-syms/test1-[123]-report.txt: New. * tests/data/test-lookup-syms/test1.c: New. * tests/data/test-lookup-syms/test1.version-script: New. * tests/test-lookup-syms.cc: Adjust for new tests. * test/Makefile.am: Adjust makefile. Signed-off-by: Dodji Seketeli <dodji@redhat.com>	2014-05-12 16:09:47 +02:00
Dodji Seketeli	12c777681d	Support symbol lookups from ELF ... * include/abg-dwarf-reader.h (symbol_type, symbol_binding): New enums. (operator<<): Declare new overloads for the new enums above. (lookup_symbol_from_elf, lookup_public_function_symbol_from_elf): Declare new entry points. * src/abg-dwarf-reader.cc (lookup_symbol_from_elf) (lookup_public_function_symbol_from_elf) (lookup_public_variable_symbol_from_elf): Define new static functions. (read_context::elf_{module_, handle}_): New data members. (read_context::{elf_module, elf_handle}): New accessors. (read_context::load_debug_info): Store the elf module into read_context::_elf_module_. Adjust. (read_context::{lookup_symbol_from_elf, lookup_public_function_symbol_from_elf, lookup_public_variable_symbol_from_elf}): New member functions. (lookup_symbol_from_elf, lookup_public_function_symbol_from_elf) (operator<<): Define public entry points. * tools/bisym.cc: New tool to lookup a symbol in an elf file. * tools/Makefile.am: Add the bisym.cc source file to the distribution and arrange to compile it into a 'bisym' executable. * tests/test-lookup-syms.cc: New test harness. * tests/data/test-lookup-syms/test0-report.txt: New test input for the harness above. * tests/data/test-lookup-syms/test0.cc: Likewise. * tests/data/test-lookup-syms/test0.o: Likewise * tests/data/test-lookup-syms/test01-report.txt: Likewise. * tests/data/test-lookup-syms/test02-report.txt: Likewise. * tests/Makefile.am: Build the new runtestlookupsyms test and add the new files to the distribution. Signed-off-by: Dodji Seketeli <dodji@redhat.com>	2014-04-21 17:56:40 +02:00