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* configure.ac: Check for link.h and dl_iterate_phdr. * elf.c: #include <link.h> if system has dl_iterate_phdr. #undef ELF macros before #defining them. (dl_phdr_info, dl_iterate_phdr): Define if system does not have dl_iterate_phdr. (struct elf_syminfo_data): Add next field. (elf_initialize_syminfo): Initialize next field. (elf_add_syminfo_data): New static function. (elf_add): New static function, broken out of backtrace_initialize. Call backtrace_dwarf_add instead of backtrace_dwarf_initialize. (struct phdr_data): Define. (phdr_callback): New static function. (backtrace_initialize): Call elf_add. * dwarf.c (struct dwarf_data): Add next and base_address fields. (add_unit_addr): Add base_address parameter. Change all callers. (add_unit_ranges, build_address_map): Likewise. (add_line): Add ddata parameter. Change all callers. (read_line_program, add_function_range): Likewise. (dwarf_lookup_pc): New static function, broken out of dwarf_fileline. (dwarf_fileline): Call dwarf_lookup_pc. (build_dwarf_data): New static function. (backtrace_dwarf_add): New function. (backtrace_dwarf_initialize): Remove. * internal.h (backtrace_dwarf_initialize): Don't declare. (backtrace_dwarf_add): Declare. * configure, config.h.in: Rebuild. From-SVN: r192267
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