2020-05-09 Mark Wielaard * find-debuginfo.c (dwfl_standard_find_debuginfo): Return failure when mod is NULL. 2020-05-08 Mark Wielaard * libdwfl/core-file.c (dwfl_core_file_report): Keep track of new bool cleanup_user_core and cleanup dwfl->user_core in error case. 2020-04-30 Mark Wielaard * find-debuginfo.c (dwfl_standard_find_debuginfo): When mod->dw is already set then try fetching debugaltlink. 2020-04-25 Mark Wielaard * gzip.c (open_stream): Return DWFL_E_NOMEM instead of calling zlib_fail. 2020-04-16 Mark Wielaard * find-debuginfo.c (dwfl_standard_find_debuginfo): Initialize bits to NULL. 2020-01-24 Mark Wielaard * linux-kernel-modules.c (find_kernel_elf): Check release isn't NULL. (report_kernel): Check release and *release aren't NULL. (report_kernel_archive): Likewise. 2019-12-11 Omar Sandoval * libdwflP.h (Dwfl_Module): Remove coalescing state. Rename lookup_tail_ndx to next_segndx. * segment.c (dwfl_report_segment): Remove coalescing logic. * libdwfl.h (dwfl_report_segment): Document that IDENT is ignored. 2019-12-05 Mark Wielaard * linux-kernel-modules.c (find_kernel_elf): Also try to find vmlinux image. 2019-10-28 Aaron Merey * dwfl_build_id_find_elf.c (dwfl_build_id_find_elf): Call debuginfod client functions via dlopen to look for elf/dwarf files as fallback. * find-debuginfo.c (dwfl_standard_find_debuginfo): Ditto. 2019-10-07 Omar Sandoval * dwfl_frame.c (dwfl_getthreads): Get rid of unnecessary thread_free_all_states calls. (getthread): Ditto. (state_free): Remove function. (thread_free_all_states): Remove function. (free_states): Add function. (dwfl_thread_getframes): Don't update thread->unwound while unwinding. * libdwflP.h (struct Dwfl_Thread): Update comment for unwound member. 2019-08-12 Mark Wielaard * gzip.c (open_stream): Return DWFL_E_ERRNO on bad file operation. * open.c (libdw_open_elf): New argument bad_elf_ok. Check it and return DWFL_E_NOERROR in case it is set and error was DWFL_E_BADELF. (__libdw_open_file): Call libdw_open_elf with bad_elf_ok false. (__libdw_open_elf): Call libdw_open_elf with bad_elf_ok true. 2019-08-05 Omar Sandoval * dwfl_segment_report_module.c (dwfl_segment_report_module): Assign mod->main.fd. 2019-04-28 Mark Wielaard * frame_unwind.c (expr_eval): Make sure we left shift a unsigned 64bit value. 2019-04-28 Mark Wielaard * cu.c (addrarange): Only call realloc when naranges is not zero. 2019-03-27 Mark Wielaard * dwfl_segment_report_module.c (dwfl_segment_report_module): Check ph_buffer_size vs xlatefrom.d_size after read_portion call. 2019-02-24 Mark Wielaard * linux-kernel-modules.c (intuit_kernel_bounds): Init *notes before fopen. (dwfl_linux_kernel_report_kernel): Remove fake note init empty asm. 2019-01-25 Yonghong Song * linux-proc-maps.c (proc_maps_report): Use PRIu64, not PRIi64, to read the inode number. 2019-01-20 Mark Wielaard * dwfl_segment_report_module.c (dwfl_segment_report_module): Check dyn_filesz vs dyn_data_size after read_portion call. 2019-01-16 Mark Wielaard * linux-core-attach.c (core_next_thread): Pass desc to ebl_core_note. (core_set_initial_registers): Likewise. 2018-10-23 Mark Wielaard * relocate.c (relocate_section): Only sanity check mmapped Elf files for overlap. Don't error when section data was malloced, not mmapped. 2018-10-20 Mark Wielaard * libdwflP.h (__libdw_open_elf): New internal function declaration. * open.c (what_kind): Rename close_fd to may_close_fd. (__libdw_open_file): Replaced (and renamed) by a call to ... (libdw_open_elf): this. And add never_close_fd argument. (__libdw_open_elf): New function that calls libdw_open_elf. 2018-10-18 Mark Wielaard * dwfl_segment_report_module.c (consider_note): Take align as new argument. Use align to set d_type and calculate padding. (dwfl_segment_report_module): Pass align to consider_notes. * core-file.c (dwfl_core_file_report): Check p_align to set ELF type. * linux-kernel-modules.c (check_notes): Check name and type of note to determine padding. 2018-10-19 Mark Wielaard * dwfl_module_getdwarf.c (find_aux_sym): Check sh_entsize is not zero. 2018-10-14 Mark Wielaard * dwfl_segment_report_module.c (read_portion): Check requested filesz isn't larger than buffer_available. (dwfl_segment_report_module): Check data_size vs filesz after read_portion call. 2018-10-02 Andreas Schwab * relocate.c (relocate): Handle ADD/SUB relocations. 2018-09-13 Mark Wielaard * dwfl_segment_report_module.c (dwfl_segment_report_module): Document why we use e_shnum directly. * elf-from-memory.c (elf_from_remote_memory): Likewise. 2018-07-17 Ulf Hermann * linux-pid-attach.c: Include sys/uio.h only on linux. 2018-06-04 Mark Wielaard * libdwflP.h (__libdwfl_addrsym): Remove function declaration. * dwfl_module_addrsym.c (__libdwfl_addrsym): Make a static function. 2018-05-27 Mark Wielaard * relocate.c (__libdwfl_relocate): Always call relocate_section with partial true. 2018-05-17 Mark Wielaard * dwfl_module (__libdwfl_module_free): Free elfdir. * dwfl_module_getdwarf.c (load_dw): Close file descriptors after dwarf_begin_elf call. Set Dwarf debugdir if it is NULL, this is the main module file and we recorded the elfdir. * libdwflP.h (struct Dwfl_Module): Add elfdir field. * offline.c (process_elf): Record the elfdir before we close the main ELF file descriptor. 2018-04-10 Mark Wielaard * frame_unwind.c (unwind): If __libdwfl_frame_reg_get fails for the return address either set an error or mark the pc undefined. 2018-03-17 Mark Wielaard * libdwflP.h (struct __libdwfl_remote_mem_cache): New. (struct __libdwfl_pid_arg): Add mem_cache field. * linux-pid-attach.c (read_cached_memory): New function. (clear_cached_memory): Likewise. (pid_memory_read): Call read_cached_memory. (pid_detach): Free mem_cache. (pid_thread_detach): Call clear_cached_memory. (dwfl_linux_proc_attach): Initialize mem_cache to NULL. 2018-03-05 Mark Wielaard * dwfl_build_id_find_elf.c (__libdwfl_open_by_build_id): Use realpath (name, NULL) instead of canonicalize_file_name (name). * find-debuginfo.c (dwfl_standard_find_debuginfo): Likewise. 2018-01-29 Mark Wielaard * cu.c (cudie_offset): Use __libdw_first_die_off_from_cu instead of DIE_OFFSET_FROM_CU_OFFSET. (intern_cu): Simply use a copy of the given die CU as key instead of trying to construct a dummy one by hand. 2018-02-15 Mark Wielaard * linux-pid-attach.c: Include sys/wait.h after sys/ptrace.h. 2018-02-09 Joshua Watt * dwfl_report_elf.c (__libdwfl_elf_address_range): Use FALLTHROUGH macro instead of comment. * frame_unwind.c (expr_eval): Likewise. 2017-11-20 Mark Wielaard * link_map.c (do_check64): Take a char * and calculate type and val offsets before reading, possibly unaligned, values. (do_check32): Likewise. (check64): Remove define. (check32): Likewise. (auxv_format_probe): Call do_check32 and do_check64 directly with a, possibly unaligned, auxv entry pointer. (dwfl_link_map_report): Redefine AUXV_SCAN to not dereference a possibly unaligned auxv entry pointer. 2017-10-16 Mark Wielaard * argp-std.c (parse_opt): For -k call argp_failure not failure to keep dwfl around. 2017-07-26 Yunlian Jiang * argp-std.c (failure): Move to file scope. (fail): Likewise. 2017-04-20 Ulf Hermann Mark Wielaard * derelocate.c (compare_secrefs): Compare by end address and then by section number if addresses are equal. 2017-04-20 Ulf Hermann Mark Wielaard * linux-kernel-modules.c: Always return NULL from kernel_release() on non-linux systems and set errno to ENOTSUP. 2017-04-20 Ulf Hermann * libdwflP.h: Don't include config.h. * argp-std.c: Include config.h. * cu.c: Likewise. * derelocate.c: Likewise. * dwfl_addrdie.c: Likewise. * dwfl_addrdwarf.c: Likewise. * dwfl_addrmodule.c: Likewise. * dwfl_begin.c: Likewise. * dwfl_build_id_find_debuginfo.c: Likewise. * dwfl_build_id_find_elf.c: Likewise. * dwfl_cumodule.c: Likewise. * dwfl_dwarf_line.c: Likewise. * dwfl_end.c: Likewise. * dwfl_frame.c: Likewise. * dwfl_frame_regs.c: Likewise. * dwfl_getdwarf.c: Likewise. * dwfl_getmodules.c: Likewise. * dwfl_getsrc.c: Likewise. * dwfl_getsrclines.c: Likewise. * dwfl_line_comp_dir.c: Likewise. * dwfl_linecu.c: Likewise. * dwfl_lineinfo.c: Likewise. * dwfl_linemodule.c: Likewise. * dwfl_module.c: Likewise. * dwfl_module_addrdie.c: Likewise. * dwfl_module_addrname.c: Likewise. * dwfl_module_addrsym.c: Likewise. * dwfl_module_build_id.c: Likewise. * dwfl_module_dwarf_cfi.c: Likewise. * dwfl_module_eh_cfi.c: Likewise. * dwfl_module_getdarf.c: Likewise. * dwfl_module_getelf.c: Likewise. * dwfl_module_getsrc.c: Likewise. * dwfl_module_getsrc_file.c: Likewise. * dwfl_module_getsym.c: Likewise. * dwfl_module_info.c: Likewise. * dwfl_module_nextcu.c: Likewise. * dwfl_module_register_names.c: Likewise. * dwfl_module_report_build_id.c: Likewise. * dwfl_module_return_value_location.c: Likewise. * dwfl_nextcu.c: Likewise. * dwfl_onesrcline.c: Likewise. * dwfl_report_elf.c: Likewise. * dwfl_validate_address.c: Likewise. * dwfl_version.c: Likewise. * find-debuginfo.c: Likewise. * gzip.c: Likewise. * image-header.c: Likewise. * lines.c: Likewise. * linux-core-attach.c: Likewise. * linux-pid-attach.c: Likewise. * offline.c: Likewise. * open.c: Likewise. * relocate.c: Likewise. * segment.c: Likewise. 2017-04-20 Ulf Hermann * libdwfl.h: Use __const_attribute__. 2017-04-20 Ulf Hermann * elf-from-memory.c: Explicitly cast phnum to size_t. 2017-04-20 Ulf Hermann * dwfl_module_getdwarf.c: Check shnum for 0 before subtracting from it. 2017-04-20 Ulf Hermann * dwfl_frame.c: Drop unused sys/ptrace.h include. * frame_unwind.c: Likewise. * linux-pid-attach.c: Include sys/ptrace.h and sys/syscall.h only on linux. 2017-04-20 Ulf Hermann * linux-kernel-modules.c: Include sys/types.h before fts.h 2017-03-24 Mark Wielaard * linux-core-attach.c (core_next_thread): If n_namesz == 0 then the note name data is the empty string. (dwfl_core_file_attach): Likewise. 2017-02-15 Ulf Hermann * linux-kernel-modules.c: Include system.h. 2017-02-15 Ulf Hermann * linux-kernel-modules.c: Use sysconf(_SC_PAGESIZE) to get page size. * linux-proc-maps.c: Likewise. 2016-12-29 Luiz Angelo Daros de Luca * dwfl_build_id_find_elf.c: Include system.h. * dwfl_module_getdwarf.c: Likewise. * libdwfl_crc32_file.c: Don't define LIB_SYSTEM_H. 2016-11-23 Mark Wielaard * linux-kernel-modules.c: Only include fts.h early if BAD_FTS is defined. 2016-10-11 Akihiko Odaki * core-file.c: Remove sys/param.h. * dwfl_segment_report_module.c: Likewise. Add system.h include. (MAX): Remove definition. * frame_unwind.c: Add system.h include. (MAX): Remove definition. * linux-core-attach.c (MIN): Remove definition. * linux-pid-attach.c (MAX): Likewise. 2016-08-12 Mark Wielaard * link_map.c (dwfl_link_map_report): Fix assert, set in.d_size. 2016-04-14 Mark Wielaard * dwfl_module_getsrc_file.c (dwfl_module_getsrc_file): Free match on invalid DWARF if we allocated it. 2016-04-14 Mark Wielaard * linux-proc-maps.c (proc_maps_report): Free last_file on bad file mapping. 2016-03-01 Steven Chamberlain * linux-pid-attach.c: Removed unused pid_thread_callbacks, pid_thread_detach, pid_detach, pid_set_initial_registers, pid_memory_read, pid_getthread, pid_next_thread in #ifndef __linux__ code. 2016-02-22 Ravi Bangoria Mark Wielaard * find-debuginfo.c (find_debuginfo_in_path): Remember whether debuglink_file is NULL. Try file basename (without .debug) ofr absolute and relative path if debug_file was NULL. * linux-kernel-modules.c (try_kernel_name): If try_debug is true call dwfl_standard_find_debuginfo with NULL debuglink_file, otherwise with basename of fname. 2016-02-13 Mark Wielaard * linux-proc-maps.c (proc_maps_report): Free last_file when ENOEXEC. 2016-02-13 Mark Wielaard * frame_unwind.c (new_unwound): Check and return unwound. (handle_cfi): Check new_unwound was able to allocate new memory before use. Return DWFL_E_NOMEM otherwise. 2016-02-11 Mark Wielaard * relocate.c (relocate_section): Check result of all gelf_get* calls. (__libdwfl_relocate): Likewise. (__libdwfl_relocate_section): Likewise. 2016-02-11 Mark Wielaard * relocate.c (relocate_section): Check result of gelf_update_* calls. 2016-01-08 Mark Wielaard * libdwfl_a_SOURCES: Unconditionally add gzip.c. * linux-kernel-modules.c (vmlinux_suffixes): We always have at least .gz support. (try_kernel_name): Likewise. (check_suffix): Likewise. * open.c (decompress): Likewise. 2015-12-18 Mark Wielaard * dwfl_module_getdwarf.c (find_symtab): Uncompress symstr, xndx, sym sections and aux_str, aux_xndx and aux_sym sections if necessary. * relocate.c (relocate_getsym): Uncompress symtab and symtab_shndx if necessary. (resolve_symbol): Uncompress strtab section if necessary. (relocate_section): Uncompress the section the relocations apply to if necessary. 2015-11-18 Chih-Hung Hsieh * linux-proc-maps.c (proc_maps_report): Move nested function 'report' to file scope. 2015-11-18 Chih-Hung Hsieh * core-file.c (elf_begin_rand): Move nested function 'fail' to file scope. * core-file.c (dwfl_elf_phdr_memory_callback): Move nested functions 'update_end' and 'more' to file scope. 2015-11-17 Chih-Hung Hsieh * link_map.c (auxv_format_probe): Move nested functions check64 and check32 to file scope. 2015-12-08 Jose E. Marchesi * dwfl_frame.c (state_fetch_pc): Add a backend-defined offset to the value of the return address register as defined by the CFI abi. * frame_unwind.c (handle_cfi): Likewise. 2015-12-01 Mark Wielaard * link_map.c (dwfl_link_map_report): Track whether in.d_buf comes from exec or memory_callback, free as appropriate. 2015-12-01 Mark Wielaard * libdwflP.h (struct Dwfl_User_Core): New. (struct DWfl): Replace executable_for_core with user_core. * argp-std.c (parse_opt): Store core and fd in Dwfl user_core. * core-file.c (dwfl_core_file_report): Check and store executable_for_core in Dwfl user_core. * dwfl_build_id_find_elf.c (dwfl_build_id_find_elf): Check and use executable_for_core in Dwfl user_core. * dwfl_end.c (dwfl_end): Release resources held in Dwfl user_core. * link-map.c (report_r_debug): Check executable_for_core in Dwfl user_core. (dwfl_link_map_report): Likewise. 2015-11-16 Chih-Hung Hsieh * dwfl_module_getdwarf.c (find_prelink_address_sync): Move nested function 'consider_shdr' to file scope. * dwfl_module_getdwarf.c (find_dynsym): Move nested function 'translate_offs' to file scope. 2015-11-16 Chih-Hung Hsieh * dwfl_module_addrsym.c (__libdwfl_addrsym): Move nested functions 'same_section', 'binding_value', 'try_sym_value', and 'search_table' to file scope. 2015-11-19 Mark Wielaard * dwfl_module.c (__libdwfl_module_free): Remove Dwfl_Module Ebl from eh_cfi and dwarf_cfi cache if necessary before calling dwarf_end and dwarf_cfi_end. 2015-11-13 Chih-Hung Hsieh * gzip.c (unzip): Move nested functions to file scope. 2015-10-21 Chih-Hung Hsieh Mark Wielaard * dwfl_module_getsrc_file.c (dwfl_module_getsrc_file): Move nested functions 'dwarf_line_file', 'dwfl_line', and 'dwfl_line_file' to file scope. Rename dwarf_line_file to dwfl_dwarf_line_file. Don't use INTUSE. 2015-10-21 Chih-Hung Hsieh * frame_unwind.c (expr_eval): Move nested function 'push' and 'pop' to file scope. Pass used local variables in struct eval_stack. 2015-10-21 Chih-Hung Hsieh * dwfl_module.c (dwfl_report_module): Move nested function 'use' to file scope. 2015-10-09 Josh Stone * core-file.c (elf_begin_rand): Replace loff_t with off_t. * open.c (decompress): Replace off64_t with off_t. * gzip.c (unzip): Likewise. * image-header.c (__libdw_image_header): Likewise. * libdwflP.h: Likewise in function declarations. * argp-std.c (parse_opt): Replace open64 with open. * dwfl_build_id_find_elf.c (__libdwfl_open_mod_by_build_id, dwfl_build_id_find_elf): Likewise. * dwfl_module_getdwarf.c (open_elf_file): Likewise. * dwfl_report_elf.c (dwfl_report_elf): Likewise. * dwfl_segment_report_module.c (dwfl_segment_report_module): Likewise. * link_map.c (report_r_debug): Likewise. * offline.c (dwfl_report_offline): Likewise. * linux-proc-maps.c (grovel_auxv, get_pid_class, dwfl_linux_proc_find_elf): Likewise. (read_proc_memory): Replace off64_t with off_t. * find-debuginfo.c (find_debuginfo_in_path): Replace stat64 and fstat64 with stat and fstat. (try_open): Likewise, and replace open64 with open. * linux-kernel-modules.c: Manually define open and fopen to open64 and fopen64 when needed, since the early fts.h include breaks that. (try_kernel_name): Replace open64 with open. (check_notes): Likewise. 2015-10-09 Jose E. Marchesi * linux-proc-maps.c (read_proc_memory): Use seek+read instead of pread, as the later doesn't accept negative offsets. 2015-10-07 Mark Wielaard * dwfl_module_getdwarf.c (MAX): Removed. (find_prelink_address_sync): Allocate exact amount of bytes for phdrs and shdrs. * dwfl_segment_report_module.c (dwfl_segment_report_module): Likewise for phdrs. * elf-from-memory.c (MAX): Removed. (elf_from_remote_memory): Allocate exact amount of bytes for phdrs. 2015-10-05 Chih-Hung Hsieh * dwfl_module_getdwarf.c (find_prelink_address_sync): Do not use union of variable length arrays. * dwfl_segment_report_module.c (dwfl_segment_report_module): Likewise. * elf-from-memory.c (elf_from_remote_memory): Likewise. * link_map.c (auxv_format_probe): Likewise. * link_map.c (report_r_debug): Likewise. * link_map.c (dwfl_link_map_report): Likewise. 2015-09-18 Chih-Hung Hsieh * relocate.c (relocate_section): Move nested function "relocate" to file scope, pass all used local variables as constants. Move nested "check_badreltype" to file scope, pass addresses of updated used local variables. * linux-kernel-modules.c (intuit_kernel_bounds): Move nested function "read_address" to file scope, pass all updated local variables in a state structure. * linux-kernel-modules.c (dwfl_linux_kernel_find_elf): Move nested function "subst_name" to file scope, pass all used local variables as constants. * linux-kernel-modules.c (dwfl_linux_kernel_report_kernel): Replace simple nested function "report" with a macro. Work around gcc static analysis error -Werror=maybe-uninitialized. 2015-09-22 Mark Wielaard * core-file.c: Remove old-style function definitions. * dwfl_error.c: Likewise. * dwfl_module_dwarf_cfi.c: Likewise. * dwfl_module_eh_cfi.c: Likewise. * dwfl_module_register_names.c: Likewise. * dwfl_module_return_value_location.c: Likewise. * dwfl_version.c: Likewise. 2015-09-09 Chih-Hung Hsieh Mark Wielaard * dwfl_frame.c (dwfl_attach_state): Remove redundant NULL tests on parameters declared with __nonnull_attribute__. * libdwfl.h (dwfl_module_getelf): Don't mark first argument as nonnull. 2015-09-08 Mark Wielaard * libdwflP.h (struct __libdwfl_pid_arg): Add elf and elf_fd. * linux-pid-attach.c (pid_detach): Call elf_end and close. (dwfl_linux_proc_attach): Open and save /proc/PID/exe. 2015-09-04 Chih-Hung Hsieh * find-debuginfo.c (find_debuginfo_in_path): Try to locate the debug info file named debuglink_file under mod->dwfl->callbacks->debuginfo_path, by looking at the set of sub-trees under mod->dwfl->callbacks->debuginfo_path which is common to the set of non-absolute parent trees of file_name. 2015-06-18 Mark Wielaard * find-debuginfo.c (try_open): Free fname on all failure paths. 2015-06-18 Mark Wielaard * dwfl_module_getdwarf.c (find_symtab): Check shdr is not NULL and sh_entsize is not zero. 2015-06-06 Mark Wielaard * find-debuginfo.c (find_debuginfo_in_path): Always free localpath, localname and file_dirname. 2015-06-06 Mark Wielaard * derelocate.c (cache_sections): Free sortrefs. 2015-06-05 Mark Wielaard * dwfl_segment_report_module.c (dwfl_segment_report_module): If the note_file exists, but the build_id doesn't match discard the file and continue reporting. 2015-06-01 Mark Wielaard * dwfl_build_id_find_elf.c (__libdwfl_open_by_build_id): Copy path pointer before passing to strsep. 2015-05-30 Mark Wielaard * link_map.c (check32): Use read_4ubyte_unaligned_noncvt to read type and value. (read_addrs): Use read_(4|8)ubyte_unaligned_noncvt or to read adresses. 2015-05-30 Mark Wielaard * find-debuginfo.c (dwfl_standard_find_debuginfo): Check file_name is not NULL before calling canonicalize_file_name. 2015-05-24 Mark Wielaard * derelocate.c (check_module): Check mod is not NULL. 2015-05-22 Mark Wielaard * link_map.c (dwfl_link_map_report): Allocate phdrs and dyn with malloc instead of stack allocating. Call free when done with data. 2015-05-22 Mark Wielaard * dwfl_segment_report_module.c (dwfl_segment_report_module): Allocate phdrs with malloc, not on stack. free in finish. Allocate dyn with malloc, not on stack, free after use. 2015-05-22 Mark Wielaard * find-debuginfo.c (find_debuginfo_in_path): malloc or strdup, instead of alloca or strdupa, local strings of unknown size. Call free before return. 2015-05-22 Mark Wielaard * dwfl_build_id_find_elf.c (__libdwfl_open_by_build_id): Return error when id_len too small or too large. strdup, not strdupa, and free path when done. 2015-05-19 Mark Wielaard * elf-from-memory.c (elf_from_remote_memory): Don't allocate all phdrs on the stack. Allocate with malloc and free when done. 2015-05-19 Mark Wielaard * linux-kernel-modules.c (dwfl_linux_kernel_find_elf): malloc and free alternate_name. 2015-05-19 Mark Wielaard * linux-kernel-modules.c (dwfl_linux_kernel_report_offline): Don't stack allocate name. Only change chars up to suffix. 2015-05-18 Mark Wielaard * dwfl_module_getdwarf.c (find_prelink_address_sync): Allocate phdrs and shdrs unions with malloc, not alloca. Free after use. 2015-05-18 Mark Wielaard * derelocate.c (cache_sections): Allocate temporary newrefs and sortrefs with malloc, not alloca. Always free them on return. 2015-05-07 Mark Wielaard * cu.c (intern_cu): Check for EOF and check cuoff points to a real Dwarf_Die before interning. Explicitly check EOF is expected. 2015-05-05 Mark Wielaard * dwfl_lineinfo.c (dwfl_lineinfo): Check info->file is valid. 2015-05-06 Roland McGrath * dwfl_error.c (struct msgtable): Break type definition out of the 'msgtable' initializer. (msgtable): Make it a union of struct msgtable and a char array. (msgstr): Use the full-table char array rather than the msg_0 entry. 2015-04-23 Max Filippov * core-file.c (_compat_without_executable_dwfl_core_file_report): Guard with SYMBOL_VERSIONING. * dwfl_module_build_id.c (_compat_vaddr_at_end_dwfl_module_build_id): Likewise. * dwfl_report_elf.c (_compat_without_add_p_vaddr_dwfl_report_elf): Likewise. 2015-04-02 Mark Wielaard * segment.c (insert): Check correct number of lookup_elts. 2015-03-31 Mark Wielaard * core-file.c (core_file_read_eagerly): Special case small images. 2015-01-26 Mark Wielaard * dwfl_module_getdwarf.c (find_symtab): Explicitly clear symdata, syments and first_global on elferr before calling find_dynsym. 2014-12-27 Mark Wielaard * dwfl_module_getsrc.c (dwfl_module_getsrc): Never match a line that has end_sequence set. 2015-01-04 Mark Wielaard * cu.c (intern_cu): Store result and return directly when finding EOF marker. (__libdwfl_nextcu): Check *nextp as returned by intern_cu isn't -1. 2014-12-19 Mark Wielaard * dwfl_module_getdwarf.c (find_symtab): Always try find_dynsym last. 2014-12-19 Mark Wielaard * elf-from-memory.c (handle_segment): Remove palign sanity check. 2014-12-18 Mark Wielaard * relocate.c (resolve_symbol): Make sure symstrdata->d_buf != NULL. 2014-12-13 Mark Wielaard * dwfl_module_getdwarf.c (find_dynsym): elf_getdata_rawchunk takes a size_t, make sure it doesn't overflow. 2014-12-13 Mark Wielaard * cu.c (cudie_offset): Make sure Dwarf_Off difference doesn't wrap around before returning as int. 2014-12-11 Josh Stone * dwfl_module_getsrc.c (dwfl_module_getsrc): Return the *last* line record <= addr, rather than returning immediately on matches. 2014-12-09 Mark Wielaard * dwfl_segment_report_module.c (handle_file_note): Check count doesn't overflow. 2014-12-07 Mark Wielaard * relocate.c (relocate_section): Sanity check section overlap against actually used ehsize, shentsize and phentsize. 2014-12-07 Mark Wielaard * offline.c (dwfl_offline_section_address): Assert shndx is not zero. * relocate.c (__libdwfl_relocate_value): Don't relocate against section zero. 2014-11-29 Mark Wielaard * relocate.c (relocate_section): Check relocation section and target section data don't overlap any of the ELF headers. (relocate): Check for offset + size overflow. 2014-11-22 Mark Wielaard * link_map.c (consider_executable): Use elf_getphdrnum. (dwfl_link_map_report): Likewise. 2014-11-18 Mark Wielaard * dwfl_module_getdwarf.c (find_symtab): Sanity check the data buffer, number of symbols and first_global before use. 2014-11-14 Mark Wielaard * dwfl_module_getdwarf.c (load_symtab): Don't use tables which have a zero sh_entsize. 2014-11-10 Mark Wielaard * dwfl_module_getdwarf.c (find_dynsym): New inner function translate_offs that takes an adjust argument. Try finding the symbol table with and without adjusting to main_bias. 2014-09-26 Jan Kratochvil Support NT_FILE for locating files. * core-file.c (dwfl_core_file_report): New variables note_file and note_file_size, set them and pass them to dwfl_segment_report_module. * dwfl_segment_report_module.c: Include common.h and fcntl.h. (buf_has_data, buf_read_ulong, handle_file_note): New functions. (invalid_elf): New function from code of dwfl_segment_report_module. (dwfl_segment_report_module): Add parameters note_file and note_file_size. New variables elf and fd, clean them up in finish. Move some code to invalid_elf. Call handle_file_note, if it found a name verify the file by invalid_elf. Protect elf and fd against cleanup by finish if we found the file for new Dwfl_Module. * libdwflP.h (dwfl_segment_report_module): Add parameters note_file and note_file_size. 2014-09-23 Mark Wielaard * dwfl_segment_report_module.c (dwfl_segment_report_module): Extract ei_class, ei_data and e_type early and use the result. 2014-09-18 Jan Kratochvil * dwfl_build_id_find_elf.c (dwfl_build_id_find_elf): Use IS_EXECUTABLE. * dwfl_segment_report_module.c (dwfl_segment_report_module): Set IS_EXECUTABLE. * libdwflP.h (struct Dwfl_Module): New field is_executable. 2014-08-28 Jan Kratochvil * dwfl_module_getdwarf.c (find_offsets): Add parameter main_bias, use it. (find_dynsym): Pass the new parameter main_bias. 2014-08-14 Mark Wielaard * linux-kernel-modules.c (check-suffix): Also TRY .ko.xz. 2014-07-24 Jan Kratochvil Fix report_r_debug for prelinked libraries. * link_map.c (report_r_debug): Comment out variable l_addr. Use instead new variable base recalculated from l_ld. 2014-06-24 Kurt Roeckx * linux-pid-attach.c: Make it build on non linux hosts. 2014-06-17 Mark Wielaard * frame_unwind.c (handle_cfi): Use ebl_func_addr_mask. * dwfl_module_getsym.c (__libdwfl_getsym): Likewise. 2014-06-15 Mark Wielaard * linux-core-attach.c (core_memory_read): Use libdw/memory-access.h macros read_4ubyte_unaligned_noncvt and read_8ubyte_unaligned_noncvt to read possibly unaligned data. (core_next_thread): Likewise. (core_set_initial_registers): Likewise. (dwfl_core_file_attach): Likewise. 2014-06-11 Mark Wielaard * dwfl_frame.c (__libdwfl_process_free): Reset dwfl->attacherr. (dwfl_attach_state): Set dwfl->attacherr. (dwfl_pid): Check and return dwfl->attacherr if set. (dwfl_getthreads): Likewise. (getthread): Likewise. * libdwflP.h: Add DWFL_E_NO_CORE_FILE. (struct Dwfl): Add attacherr field. * linux-core-attach.c (dwfl_core_file_attach): Set dwfl->attacherr. Don't assert if ELF file is not ET_CORE, just return error. * linux-pid-attach.c (dwfl_linux_proc_attach): Set dwfl->attacherr. 2014-06-10 Mark Wielaard * argp-std.c (parse_opt): Ignore errors from dwfl_core_file_attach or dwfl_linux_proc_attach. 2014-05-15 Mark Wielaard * linux-proc-maps.c (grovel_auxv): Close fd on error. 2014-05-02 Mark Wielaard * dwfl_module_getdwarf: Remove ENABLE_DWZ ifdefs so find_debug_altlink is always called. 2014-05-01 Mark Wielaard * libdwflP.h (struct Dwfl_Module): Add alt, alt_fd and alt_elf fields. (__libdwfl_open_mod_by_build_id): Renamed __libdwfl_open_by_build_id. (__libdwfl_open_by_build_id): New declaration that takes an explicit build-id. * dwfl_build_id_find_debuginfo.c (dwfl_build_id_find_debuginfo): If we already have the Dwarf then look for the alt dwz multi file by build-id. * dwfl_build_id_find_elf.c (__libdwfl_open_by_build_id): Add the build-id we are looking for as argument. (__libdwfl_open_mod_by_build_id): New function, calls __libdwfl_open_by_build_id. (dwfl_build_id_find_elf): Call __libdwfl_open_mod_by_build_id. * dwfl_module.c (__libdwfl_module_free): Release alt, alt_elf and close alt_fd if necessary. * dwfl_module_getdwarf.c (__check_build_id): Removed. (try_debugaltlink): Removed. (open_debugaltlink): Removed. (open_elf_file): First half of open_elf that just opens the elf file but doesn't setup the load address. (open_elf): Call open_elf_file. (find_debug_altlink): New function. (load_dw): Remove loading of dwz multifile. (find_dw): Call find_debug_altlink. * find-debuginfo.c (validate): Handle alt debug case using dwelf_dwarf_gnu_debugaltlink and mod->alt_elf. (find_debuginfo_in_path): Handle alt debug files possibly in .dwz subdirs. * linux-kernel-modules.c (try_kernel_name): Use fakemod.debug.name to store name to find by dwfl_standard_find_debuginfo instead of allocating an extra variable on stack. 2014-04-30 Mark Wielaard * dwfl_module_build_id.c (__libdwfl_find_elf_build_id): Moved to dwelf_elf_gnu_build_id.c. (__libdwfl_find_build_id): Add assert to make sure mod is never NULL. * dwfl_segment_report_module.c (dwfl_segment_report_module): Call dwelf_elf_gnu_build_id directly instead of __libdwfl_find_build_id. * dwfl_module_getdwarf.c (__check_build_id): Implement using dwelf_elf_gnu_build_id. 2014-04-15 Florian Weimer * dwfl_module_getdwarf.c (__check_build_id): Moved from libdw. (try_debugaltlink): Likewise. (open_debugaltlink): Likewise. (load_dw): Locate alternate debug information using dwelf_dwarf_gnu_debugaltlink and call open_debugaltlink. 2014-04-11 Mark Wielaard * Makefile.am (AM_CPPFLAGS): Add libdwelf. * libdwflP.h: Include libdwelfP.h. * dwfl_module_getdwarf.c (find_debuglink): Moved to libdwelf. (find_debuginfo): Use dwelf_elf_gnu_debuglink. 2014-04-22 Mark Wielaard * frame_unwind.c (__libdwfl_frame_reg_get): Use uint64_t when checking bits. (__libdwfl_frame_reg_set): Likewise. 2014-04-22 Kurt Roeckx * linux-pid-attach.c: Make linux only. 2014-03-14 Mark Wielaard * Makefile.am: Remove !MUDFLAP and MUDFLAP conditions. Remove libelf and libdw definitions when MUDFLAP is defined. * argp-std.c (__libdwfl_argp_mudflap_options): Removed. 2014-03-03 Mark Wielaard * elf-from-memory.c (elf_from_remote_memory): Keep track of segments_end_mem. Pass memsz to first handle_segment pass. Only extend contents_size and use shdrs if only file bits are in segment. 2014-03-11 Josh Stone * dwfl_module_getdwarf.c (open_elf): Only explicitly set mod->e_type when processing the main ELF file. 2014-03-04 Mark Wielaard * libdwflP.h (struct __libdwfl_pid_arg): Moved here and renamed from linux-pid-attach.c (struct pid_arg). (__libdwfl_get_pid_arg): New internal function declaration. (__libdwfl_ptrace_attach): Likewise. (__libdwfl_ptrace_detach): Likewise. * dwfl_frame.c (dwfl_attach_state): Add "(deleted)" files to the special exception modules that cannot be checked at this point. * linux-pid-attach.c (struct pid_arg): Moved to libdwflP.h (ptrace_attach): Renamed to... (__libdwfl_ptrace_attach): New internal function. (__libdwfl_ptrace_detach): Likewise. Extracted from ... (pid_thread_detach): Call __libdwfl_ptrace_detach now. (__libdwfl_get_pid_arg): New internal function. * linux-proc-maps.c (dwfl_linux_proc_find_elf): Check if special module name contains "(deleted)" and dwfl_pid gives an attached pid. If pid is set and try to (re)use ptrace attach state of process before reading memory. 2014-03-03 Mark Wielaard * elf-from-memory.c (elf_from_remote_memory): Take pagesize as argument. Free buffer when detecting bad elf. Check PT_LOAD alignment requirements on first handle_segment pass. Calculate loadbase, start and end of segment using pagesize, not p_align. * linux-proc-maps.c (dwfl_linux_proc_find_elf): Provide pagesize to elf_from_remote_memory. 2014-02-26 Mark Wielaard * linux-proc-maps.c (proc_maps_report): Don't assert on bad input. 2014-02-26 Mark Wielaard * elf-from-memory.c (elf_from_remote_memory): Check against p64 p_type in case ELFCLASS64, not against p32 p_type. 2014-01-17 Petr Machata * relocate.c (relocate_section): Use gelf_fsize instead of relying on shdr->sh_entsize. 2014-01-05 Mark Wielaard * frame_unwind.c (handle_cfi): Only skip resetting return register if the regno is not the actual CIE return address register. 2014-01-02 Mark Wielaard * linux-pid-attach.c (dwfl_linux_proc_attach): Use strtol, not atoi. 2013-12-30 Mark Wielaard * argp-std.c (parse_opt): Call dwfl_linux_proc_attach and dwfl_core_file_attach explicitly. * core-file.c (dwfl_core_file_report): Don't call __libdwfl_attach_state_for_core implicitly. * dwfl_begin.c (dwfl_begin): Remove setting of process_attach_error. * dwfl_frame.c (dwfl_pid): Set errno to DWFL_E_NO_ATTACH_STATE, not process_attach_error. (dwfl_getthreads): Likewise. (getthread): Likewise. * libdwfl.h (dwfl_core_file_report): Update documentation. (dwfl_linux_proc_report): Likewise. (dwfl_core_file_attach): New function declaration. (dwfl_linux_proc_attach): Likewise. * libdwflP.h (struct Dwfl): Remove process_attach_error. (__libdwfl_attach_state_for_pid): Removed declaration. (__libdwfl_attach_state_for_core): Likewise. (dwfl_core_file_attach): New internal declaration. (dwfl_linux_proc_attach): Likewise. (attach_state_for_core): Renamed to... (dwfl_core_file_attach): ...this. Change return type. (__libdwfl_attach_state_for_core): Removed. * linux-pid-attach.c (struct pid_arg): Add assume_ptrace_stopped. (pid_set_initial_registers): Check assume_ptrace_stopped before calling ptrace. (pid_thread_detach): Likewise. (__libdwfl_attach_state_for_pid): Renamed to... (dwfl_linux_proc_attach): ...this. Adjust return type. * linux-proc-maps.c (dwfl_linux_proc_report): Don't call __libdwfl_attach_state_for_pid implicitly. 2013-12-28 Mark Wielaard * linux-proc-maps.c (dwfl_linux_proc_find_elf): Don't return special character device files, only regular files. 2013-12-24 Mark Wielaard * linux-core-attach.c (core_next_thread): Check whether thread_argp is NULL. Reset core_arg->thread_note_offset and malloc a thread_arg in that case. Free thread_arg if there are no more threads. 2013-12-23 Mark Wielaard * dwfl_segment_report_module.c (dwfl_segment_report_module): Free build_id before returning early. 2013-12-23 Mark Wielaard * linux-pid-attach.c (__libdwfl_attach_state_for_pid): Report actual pid (thread group leader) to dwfl_attach_state. 2013-12-21 Mark Wielaard * frame_unwind.c (handle_cfi): Track whether the return register has been set and only allow it to be set once. 2013-12-20 Mark Wielaard * dwfl_frame.c (one_arg): New struct. (get_one_thread_cb): New function. (dwfl_getthread): Likewise. (one_thread): New struct. (get_one_thread_frames_cb): New function. (dwfl_getthread_frames): Likewise. * libdwfl.h (Dwfl_Thread_Callbacks): Add get_thread function. (dwfl_getthread_frames): Likewise. * libdwflP.h (dwfl_getthread_frames): New internal function declaration. * linux-core-attach.c (core_thread_callbacks): Initialize get_thread to NULL. * linux-pid-attach.c (pid_getthread): New function. (pid_thread_callbacks): Initialize get_thread to pid_getthread. 2013-12-20 Mark Wielaard * linux-kernel-modules.c (report_kernel_archive): Correct nested asprintf result check for debug.a. 2013-12-18 Mark Wielaard * derelocate.c (__libdwfl_find_section_ndx): New internal function. * dwfl_module_addrname.c (dwfl_module_addrname): Use dwfl_module_addrinfo. * dwfl_module_addrsym.c (dwfl_module_addrsym_elf): Replace with... (__libdwfl_addrsym): ...this. Use __libdwfl_getsym, use value for comparisons, not st_value. Fill in off. Search for both value and the (adjusted) sym.st_value when different. (dwfl_module_addrsym): Implement using __libdwfl_addrsym. (dwfl_module_addrinfo): New function. * dwfl_module_getsym.c (dwfl_module_getsym_elf): Replace with... (__libdwfl_getsym): ...this. Use ebl_resolve_sym_value if requested and possible. Adjust sym->st_value only when requested. Fill in addr if available. (dwfl_module_getsym_info): New function. (dwfl_module_getsym): Use __libdwfl_getsym. * libdwfl.h (dwfl_module_getsym_elf): Removed. (dwfl_module_getsym_info): New function declaration. (dwfl_module_addrinfo): Likewise. (dwfl_module_addrsym): Add documentation describing differences with addrinfo variants. (dwfl_module_addrsym_elf): Removed. * libdwflP.h (__libdwfl_getsym): New internal function declaration. (__libdwfl_addrsym): Likewise. (__libdwfl_find_section_ndx): Likewise. (dwfl_module_addrinfo): New internal declaration. (dwfl_module_getsym_info): Likewise. (dwfl_module_addrsym_elf): Removed. (dwfl_module_getsym_elf): Likewise. 2013-12-18 Jan Kratochvil * argp-std.c (offline_find_elf): Remove. (offline_callbacks): Use dwfl_build_id_find_elf instead. * dwfl_build_id_find_elf.c (dwfl_build_id_find_elf): Move here the code removed above. 2013-12-18 Jan Kratochvil unwinder: s390 and s390x * dwfl_frame_pc.c (dwfl_frame_pc): Call ebl_normalize_pc. * frame_unwind.c (new_unwound): New function from ... (handle_cfi): ... here. Call it. (setfunc, getfunc, readfunc): New functions. (__libdwfl_frame_unwind): Call ebl_unwind with those functions. * linux-core-attach.c (core_set_initial_registers): Always iterate through the Ebl_Register_Location loop. Call dwfl_thread_state_register_pc there. 2013-12-17 Jan Kratochvil * frame_unwind.c (handle_cfi): Call ebl_dwarf_to_regno for RA. 2013-12-17 Mark Wielaard * linux-pid-attach.c (pid_next_thread): Call rewinddir on first traversal. 2013-12-16 Mark Wielaard * libdwfl.h (dwfl_module_getsymtab_first_global): New function definition. * dwfl_module_getdwarf.c (dwfl_module_getsymtab_first_global): New function. * libdwflP.h (dwfl_module_getsymtab_first_global): New internal function definition. * dwfl_module_addrsym.c (dwfl_module_addrsym_elf): Use new function. 2013-12-14 Mark Wielaard * dwfl_module.c (__libdwfl_module_free): Free mod->reloc_info if allocated. Call dwarf_cfi_end on mod->eh_cfi if necessary. * frame_unwind.c (handle_cfi): Free frame result from dwarf_cfi_addrframe when done. 2013-12-15 Jan Kratochvil unwinder: ppc and ppc64 * frame_unwind.c (__libdwfl_frame_reg_get, __libdwfl_frame_reg_set): Call ebl_dwarf_to_regno. * linux-core-attach.c (core_set_initial_registers): Implement pc_register support. * linux-pid-attach.c (pid_thread_state_registers_cb): Implement FIRSTREG -1. 2013-11-30 Jan Kratochvil Introduce process_attach_error. * dwfl_begin.c (dwfl_begin): Initialize process_attach_error. * dwfl_frame.c (dwfl_pid, dwfl_getthreads): Use PROCESS_ATTACH_ERROR if PROCESS is NULL. * libdwflP.h (struct Dwfl): New field process_attach_error. * linux-core-attach.c (__libdwfl_attach_state_for_core): Rename to ... (attach_state_for_core): ... here, make it static, change return type, no longer use __libdwfl_seterrno. (__libdwfl_attach_state_for_core): New wrapper for it. 2013-11-27 Mark Wielaard * dwfl_module_addrsym.c (dwfl_module_addrsym): Rename to and call... (dwfl_module_addrsym_elf): this. Add elfp and biasp arguments, keep track of symelf, addr_symelf, closest_elf and sizeless_elf instead of tracking dwfl_files. * dwfl_module_getsym.c (__libdwfl_module_getsym): Renamed to... (dwfl_module_getsym_elf): ...this. Remove dwfl_file argument, add new elfp and biasp arguments. Track elf instead of file. (dwfl_module_getsym): Call dwfl_module_getsym_elf. dwfl_module_info.c (dwfl_module_info): Pass elf to dwfl_adjusted_st_value. * libdwfl.h (dwfl_module_getsym): Document limitations of shndx. (dwfl_module_getsym_elf): New function declaration. (dwfl_module_addrsym_elf): Likewise. * libdwflP.h (dwfl_module_addrsym_elf): INTDECL. (dwfl_module_getsym_elf): Likewise. (dwfl_adjusted_st_value): Take and check elf not dwfl_file. (dwfl_deadjust_st_value): Likewise. (__libdwfl_module_getsym): Removed. * relocate.c (resolve_symbol): Pass elf to dwfl_adjusted_st_value. 2013-11-21 Jan Kratochvil Fix non-build-id core files on build-id system. * link_map.c (report_r_debug): Remove valid clearing if build-id cannot be read from memory. 2013-11-21 Jan Kratochvil * dwfl_segment_report_module.c (dwfl_segment_report_module): New variable close_elf. Call __libdwfl_find_elf_build_id and compare the content, if possible. 2013-11-21 Jan Kratochvil link_map: Use proper bias, not l_addr. * core-file.c (dynamic_vaddr_get): Rename to ... (__libdwfl_dynamic_vaddr_get): ... here, make it global, internal_function. (dwfl_core_file_report): Update name in the caller. * libdwflP.h (__libdwfl_dynamic_vaddr_get): New declaration. * link_map.c (report_r_debug): New variable elf_dynamic_vaddr. Call __libdwfl_dynamic_vaddr_get for it. Remove L_ADDR FIXME comment. Use ELF_DYNAMIC_VADDR instead of L_ADDR. 2013-11-19 Jan Kratochvil Compatibility with older kernels such as RHEL-6. * linux-pid-attach.c (struct pid_arg): New field tid_was_stopped. (ptrace_attach): New parameter tid_was_stoppedp. Set it. (pid_set_initial_registers): Pass tid_was_stopped. (pid_thread_detach): Use tid_was_stopped. 2013-11-18 Josh Stone * dwfl_module_getdwarf.c (find_aux_address_sync): New function. (find_aux_sym): Use it. 2013-11-14 Jan Kratochvil Code cleanup: Remove const in prototype * dwfl_frame_regs.c (dwfl_thread_state_registers): Remove const from firstreg. * libdwfl.h (dwfl_thread_state_registers): Likewise. * linux-pid-attach.c (pid_thread_state_registers_cb): Likewise. 2013-11-14 Jan Kratochvil Fix dwfl_attach_state machine->elf. * dwfl_frame.c (dwfl_attach_state): Change parameter machine to elf. Call ebl_openbackend instead of ebl_openbackend_machine. * libdwfl.h (dwfl_attach_state): Change parameter machine to elf. Update the function description. * linux-core-attach.c (__libdwfl_attach_state_for_core): Pass CORE to dwfl_attach_state. * linux-pid-attach.c (__libdwfl_attach_state_for_pid): Pass NULL to dwfl_attach_state. 2013-11-06 Jan Kratochvil Provide __libdwfl_module_getsym to get dwfl_file *. * dwfl_module_addrsym.c (dwfl_module_addrsym) (i_to_symfile): Remove. (dwfl_module_addrsym) (search_table): New variable file. Use __libdwfl_module_getsym. Use file. * dwfl_module_getsym.c (dwfl_module_getsym): Rename to ... (__libdwfl_module_getsym): ... here. Add parameter filep. Set it. (dwfl_module_getsym): New wrapper. * libdwflP.h (__libdwfl_module_getsym): New declaration. 2013-11-13 Jan Kratochvil Fix dwfl_module_addrsym for minidebuginfo. * dwfl_module_addrsym.c (dwfl_module_addrsym): New variable addr_symfile. (dwfl_module_addrsym) (same_section): Use it. (dwfl_module_addrsym) (i_to_symfile): New function. (dwfl_module_addrsym) (search_table): Use it. 2013-11-07 Jan Kratochvil Mark Wielaard * Makefile.am (libdwfl_a_SOURCES): Add dwfl_frame.c, frame_unwind.c, dwfl_frame_pc.c, linux-pid-attach.c, linux-core-attach.c and dwfl_frame_regs.c. * core-file.c (dwfl_core_file_report): Call __libdwfl_attach_state_for_core. * dwfl_end.c (dwfl_end): Call __libdwfl_process_free. * dwfl_frame.c: New file. * frame_unwind.c: New file. * dwfl_frame_pc.c: New file. * linux-pid-attach.c: New file. * linux-core-attach.c: New file. * dwfl_frame_regs.c: New file. * libdwfl.h (Dwfl_Thread, Dwfl_Frame): New typedefs. (dwfl_core_file_report, dwfl_linux_proc_report): Extend comments. (Dwfl_Thread_Callbacks): New definition. (struct ebl, dwfl_attach_state, dwfl_pid, dwfl_thread_dwfl) (dwfl_thread_tid, dwfl_frame_thread, dwfl_thread_state_registers) (dwfl_thread_state_register_pc, dwfl_getthreads, dwfl_thread_getframes) (dwfl_frame_pc): New declarations. * libdwflP.h (Dwfl_Process): New typedef. (LIBEBL_BAD, CORE_MISSING, INVALID_REGISTER, PROCESS_MEMORY_READ) (PROCESS_NO_ARCH, PARSE_PROC, INVALID_DWARF, UNSUPPORTED_DWARF) (NEXT_THREAD_FAIL, ATTACH_STATE_CONFLICT, NO_ATTACH_STATE, NO_UNWIND) (INVALID_ARGUMENT): New DWFL_ERROR entries. (struct Dwfl): New entry process. (struct Dwfl_Process, struct Dwfl_Thread, struct Dwfl_Frame) (__libdwfl_frame_reg_get, __libdwfl_frame_reg_set) (__libdwfl_process_free, __libdwfl_frame_unwind) (__libdwfl_attach_state_for_pid, __libdwfl_attach_state_for_core) (__libdwfl_segment_start, __libdwfl_segment_end): New declarations. (dwfl_attach_state, dwfl_pid, dwfl_thread_dwfl, dwfl_thread_tid) (dwfl_frame_thread, dwfl_thread_state_registers) (dwfl_thread_state_register_pc, dwfl_getthreads, dwfl_thread_getframes) (dwfl_frame_pc): New INTDECL entries. * linux-proc-maps.c (dwfl_linux_proc_report): Call __libdwfl_attach_state_for_pid. * segment.c (segment_start): Rename to ... (__libdwfl_segment_start): ... here and make it internal_function. (segment_end): Rename to ... (__libdwfl_segment_end): ... here and make it internal_function. (reify_segments, dwfl_report_segment): Rename them at the callers. 2013-11-07 Jan Kratochvil * core-file.c (dwfl_core_file_report): Remove the use of MAX. 2013-11-07 Jan Kratochvil * core-file.c (dwfl_core_file_report): Replaced variable sniffed by retval. Fix one forgotten LISTED increase. 2013-11-07 Jan Kratochvil Fix core files for re-prelink-ed files. * core-file.c (dynamic_vaddr_get): New function. (dwfl_core_file_report): New variable file_dynamic_vaddr. Call dynamic_vaddr_get instead of using L_ADDR. * libdwflP.h (struct r_debug_info_module): Remove field l_addr. * link_map.c (report_r_debug): Do not initialize l_addr. 2013-11-07 Jan Kratochvil Code cleanup. * core-file.c (dwfl_core_file_report): Reindent block of code by continue keyword. 2013-10-30 Jan Kratochvil * argp-std.c (parse_opt): Use executable parameter of dwfl_core_file_report. * core-file.c (dwfl_core_file_report): Add parameter executable. Set it to DWFL. Add NEW_VERSION for it. (_compat_without_executable_dwfl_core_file_report): New. Twice. * libdwfl.h (dwfl_core_file_report): Add parameter executable, update the function comment. 2013-10-15 Mark Wielaard * linux-proc-maps.c (proc_maps_report): Ignore non-absolute file mappings. (dwfl_linux_proc_find_elf): Don't abort, just return failure. 2013-09-12 Mark Wielaard * cu.c (intern_cu): If dwarf_offdie fails free cu. 2013-09-12 Mark Wielaard * linux-proc-maps.c (proc_maps_report): Don't fclose FILE in bad_report. 2013-09-12 Mark Wielaard * dwfl_module_getdwarf.c (find_symtab): Call elf_getdata with aux_xndxscn, not xndxscn, for aux_symxndxdata. 2013-08-25 Mark Wielaard * linux-kernel-modules.c (report_kernel): Pass add_p_vaddr as true to dwfl_report_elf. 2013-07-25 Jan Kratochvil * dwfl_segment_report_module.c (dwfl_segment_report_module): Check for conflicts all the modules, not just the first one. Compare L_LD if it is equal, not if it is in a module address range. 2013-07-23 Jan Kratochvil * libdwflP.h (__libdwfl_elf_address_range): Add internal_function. 2013-07-23 Jan Kratochvil * core-file.c (clear_r_debug_info): Close also ELF and FD. (dwfl_core_file_report): Call __libdwfl_report_elf for R_DEBUG_INFO.MODULE. * dwfl_report_elf.c (__libdwfl_elf_address_range): New function from code of ... (__libdwfl_report_elf): ... this function. Call it. * dwfl_segment_report_module.c: Include unistd.h. (dwfl_segment_report_module): Use basename for MODULE->NAME. Clear MODULE if it has no build-id and we have segment with build-id. Ignore this segment only if MODULE still contains valid ELF. * libdwflP.h (__libdwfl_elf_address_range): New declaration. (struct r_debug_info_module): New fields fd, elf, l_addr, start, end and disk_file_has_build_id. (dwfl_link_map_report): Extend the comment. * link_map.c (report_r_debug): Extend the comment. Always fill in new r_debug_info_module. Initialize also the new r_debug_info_module fields. Remove one FIXME comment. Call __libdwfl_elf_address_range instead of __libdwfl_report_elf when R_DEBUG_INFO is not NULL. 2013-07-19 Jan Kratochvil * libdwflP.h (__libdwfl_find_elf_build_id): Add internal_function. 2013-07-02 Mark Wielaard * relocate.c (__libdwfl_relocate_value): Remove mod->e_type assert. 2013-06-05 Mark Wielaard * link_map.c (report_r_debug): Always call release_buffer after memory_callback succeeded reading build_id. 2013-05-30 Jan Kratochvil * argp-std.c (parse_opt) core> e>: Set executable_for_core before calling dwfl_core_file_report. * core-file.c (clear_r_debug_info): New function. (dwfl_core_file_report): Move raw segments reporting lower. New variable r_debug_info, pass it to dwfl_segment_report_module. Call clear_r_debug_info in the end. Return sum of LISTED and SNIFFED. * dwfl_module_build_id.c (check_notes): Move into __libdwfl_find_elf_build_id. (__libdwfl_find_build_id): Rename to ... (__libdwfl_find_elf_build_id): ... here. Add parameters build_id_bits, build_id_elfaddr and build_id_len. Verify MOD vs. ELF. (__libdwfl_find_elf_build_id) (check_notes): Remove parameters mod and set, rename data_vaddr to data_elfaddr. Do not call found_build_id. (__libdwfl_find_elf_build_id): Update the check_notes caller, do not adjust its data_elfaddr parameter. (__libdwfl_find_build_id): New wrapper of __libdwfl_find_elf_build_id. * dwfl_segment_report_module.c (dwfl_segment_report_module): New parameter r_debug_info. New variable name_is_final. Adjust addresses according to R_DEBUG_INFO->MODULE. Check conflicts against DWFL. Do not overwrite NAME by SONAME if NAME_IS_FINAL. * libdwflP.h (__libdwfl_find_elf_build_id): New declaration. (struct r_debug_info_module, struct r_debug_info): New definitions. (dwfl_segment_report_module, dwfl_link_map_report): Add parameter r_debug_info. * link_map.c: Include fcntl.h. (report_r_debug): Add parameter r_debug_info, describe it in the function comment. Delete dwfl_addrmodule call and its dependent code. Verify build-id before calling dwfl_report_elf, also supply executable_for_core to it. Store r_debug_info->module info when appropriate. (dwfl_link_map_report): Add parameter r_debug_info. New variable in_ok. Try to read IN from EXECUTABLE_FOR_CORE. Update report_r_debug caller parameters. 2013-04-30 Jan Kratochvil * dwfl_report_elf.c (__libdwfl_report_elf): Add parameter add_p_vaddr. Set it to true for ET_EXEC and ET_CORE. Provide alternative setup of START and BIAS if !ADD_P_VADDR. Set END from BIAS, not BASE. (dwfl_report_elf): Add parameter add_p_vaddr. Pass it down. Add NEW_VERSION. (_compat_without_add_p_vaddr_dwfl_report_elf) : New, with COMPAT_VERSION. * libdwfl.h (dwfl_report_elf): Add parameter add_p_vaddr. Describe it. * libdwflP.h (__libdwfl_report_elf): Add parameter add_p_vaddr. * link_map.c (report_r_debug): Use true add_p_vaddr for dwfl_report_elf. * linux-kernel-modules.c (report_kernel): Use false add_p_vaddr for dwfl_report_elf. * offline.c (process_elf): Use true add_p_vaddr for dwfl_report_elf. 2013-04-27 Mark Wielaard * link_map.c: #include system.h. 2013-04-26 Jan Kratochvil * link_map.c (BE32, BE64, LE32, LE64): Delete the definitions, move them to lib/system.h. 2013-04-24 Mark Wielaard * Makefile.am: Use AM_CPPFLAGS instead of INCLUDES. 2013-03-20 Jan Kratochvil * dwfl_report_elf.c (__libdwfl_report_elf): Remove BASE aligning. 2013-03-12 Mark Wielaard * dwfl_getsrclines.c (dwfl_getsrclines): Return 0 on success. 2013-02-22 Mark Wielaard * open.c (__libdw_gunzip,__libdw_bunzip2,__libdw_unlzma): Define as DWFL_E_BADELF when not used. 2013-02-10 Mark Wielaard * argp-std.c (parse_opt): Use opt->core and opt->e explicitly in failure messages When handling ARGP_KEY_SUCCESS because arg will not have been set. 2013-01-30 Jan Kratochvil * linux-proc-maps.c: Include system.h. (PROCEXEFMT, get_pid_class): New. (grovel_auxv): Detect 32-bit vs. 64-bit auxv, possibly call get_pid_class. 2013-01-23 Mark Wielaard * dwfl_module_getdwarf.c (find_aux_sym): Don't substract one from aux_syments by default. (find_symtab): Also succeed when only aux_symdata is found. When no symtab is found always try to load auxiliary table. (dwfl_module_getsymtab): Substract one from result when both tables have symbols. * dwfl_module_getsym.c (dwfl_module_getsym): Only skip auxiliary zero entry when both tables have symbols. * dwfl_module_addrsym.c (dwfl_module_addrsym): Only substract one from first_global when both tables have symbols. 2013-01-16 Mark Wielaard * libdwflP.h (struct Dwfl_Module): Add aux_sym, aux_symdata, aux_syments, aux_symstrdata, aux_symxndxdata and aux_first_global. (dwfl_adjusted_aux_sym_addr): New function. (dwfl_deadjust_aux_sym_addr): Likewise. (dwfl_adjusted_st_value): Take and check symfile argument. (dwfl_deadjust_st_value): Likewise. * dwfl_module_getdwarf.c (find_prelink_address_sync): Take and use dwfl_file as argument to set address_sync. (find_debuginfo): Call find_prelink_address_sync with debug file. (find_aux_sym): New function. (find_symtab): Use find_aux_sym if all we have is the dynsym table and fill in aux DwflModule fields. (dwfl_module_getsymtab): Return syments plus aux_syments. (load_symtab): Always set first_global. * dwfl_module_addrsym.c (dwfl_module_addrsym): Check symfile when using same_section. Calculate first_global based on both mod->first_global and mod->aux_first_global. * dwfl_module.c (__libdwfl_module_free): Free aux_sym. * dwfl_module_getsym.c (dwfl_module_getsym): Use auxsym table to retrieve symbol and name if necessary, making sure all locals from any table come before any globals. * dwfl_module_info.c (dwfl_module_info): Call dwfl_adjusted_st_value with symfile. * relocate.c (resolve_symbol): Likewise. 2013-01-07 Roland McGrath * link_map.c (auxv_format_probe): Handle unaligned 64-bit data, but still assume the data is at least 32-bit aligned anyway. (dwfl_link_map_report): Handle unaligned auxv data. 2012-12-11 Mark Wielaard * linux-kernel-modules.c (report_kernel): Only free fname if find_kernel_elf succeeds and allocates it. (report_kernel_archive): Fix brackets around unlikely expression. 2012-11-29 Jan Kratochvil * argp-std.c: Update Copyright year. (offline_find_elf): New function. (offline_callbacks): Use it for find_elf. (struct parse_opt): New. (parse_opt): New key ARGP_KEY_INIT. In other make hook struct parse_opt pointer from former Dwfl pointer. Delay 'e and OPT_COREFILE processing till ARGP_KEY_SUCCESS. Initialize state->input already from ARGP_KEY_SUCCESS. Modify the cleanup in ARGP_KEY_ERROR. Make the final state->input initialization optional. * dwfl_end.c: Update Copyright year. (dwfl_end): Free executable_for_core. * libdwflP.h: Update Copyright year. (struct Dwfl): New field executable_for_core. 2012-11-20 Jan Kratochvil * dwfl_report_elf.c (__libdwfl_report_elf): Simplify START and BIAS calculation. 2012-10-17 Jan Kratochvil * dwfl_module_getdwarf.c (mod_verify_build_id): New function with code from ... (__libdwfl_getelf): ... here. Call it. 2012-10-17 Jan Kratochvil * libdwfl.h (dwfl_module_getelf): Add __nonnull_attribute__. 2012-10-10 Jan Kratochvil * dwfl_segment_report_module.c (dwfl_segment_report_module): Initialize mod->MAIN_BIAS. 2012-10-10 Jan Kratochvil * dwfl_module_addrsym.c (dwfl_module_addrsym): New function binding_value. Use it for both zero and non-zero size symbols comparisons. 2012-10-01 Mark Wielaard * cu.c (cudie_offset): Don't use type_sig8, it might not be initialized and these are always real CUs, never TUs. 2012-10-01 Mark Wielaard * derelocate.c (find_section): Check next section exists before accessing it. 2012-08-01 Petr Machata * offline.c (process_archive_member): Ignore entry "/SYM64/". 2012-03-28 Roland McGrath * dwfl_segment_report_module.c (dwfl_segment_report_module: read_portion): Don't use existing buffer when FILESZ is zero (string mode) and available portion doesn't hold a terminated string. 2011-12-02 Roland McGrath * elf-from-memory.c (elf_from_remote_memory): Fix ELFCLASS64 case to use elf64_xlatetom and PHDRS.p64. Reported by Serge Pavlov . 2011-11-31 Mark Wielaard * dwfl_module_addrsym.c (dwfl_module_addrsym): First search all global symbols. Then only when that doesn't provide a match search all local symbols too. * dwfl_module_getdwarf.c (load_symtab): Take first_global int arg and fill it in. (find_symtab): Initialize mod->first_global and pass it to load_symtab. * libdwfl/libdwflP.h (Dwfl_Module): Add first_global field. 2011-11-31 Mark Wielaard * dwfl_module_addrsym.c (dwfl_module_addrsym): Only update sizeless_sym if needed and closer to desired addr. 2011-10-20 Mark Wielaard * derelocate.c (cache_sections): Intern mod->reloc_info check. (dwfl_module_relocations): Don't check mod->reloc_info. (dwfl_module_relocation_info): Likewise. (find_section): Likewise. 2011-07-09 Roland McGrath * image-header.c (LE32): Macro removed (now in lib/system.h). 2011-04-11 Mark Wielaard * linux-kernel-modules.c (vmlinux_suffixes): Guard definition by check for zlib, bzlib or lzma defines to check it isn't empty. (try_kernel_name): Use same guard for use of vmlinux_suffixes. 2011-03-08 Roland McGrath * dwfl_module_getdwarf.c (open_elf): Clear errno before CBFAIL. Reported by Kurt Roeckx . 2011-02-11 Roland McGrath * linux-kernel-modules.c (try_kernel_name): Try .gz, .bz2, .xz suffixes if corresponding decompression support is enabled. 2011-02-01 Roland McGrath * dwfl_module_getdwarf.c (find_prelink_address_sync): Use the section-end address as the synchronization point, rather than sh_addr. * dwfl_module_getdwarf.c (find_prelink_address_sync): Discover PT_INTERP p_vaddr separately from main phdrs and undo phdrs. * dwfl_module_getdwarf.c (find_prelink_address_sync): Fix pasto in last change, so we recognize PT_INTERP in ELFCLASS64 correctly. 2011-01-11 Roland McGrath * dwfl_module_getdwarf.c (open_elf): Remove section-based address_sync fixup from here. (find_prelink_address_sync): New function. (find_debuginfo): Call it. * libdwflP.h (DWFL_ERRORS): Add BAD_PRELINK error. 2011-01-04 Roland McGrath * dwfl_module_getdwarf.c (open_elf): Enhance address_sync calculation logic to consider section addresses, the better to survive all the possible prelink machinations. * libdwflP.h (struct dwfl_file): Comment change. 2010-11-30 Roland McGrath * derelocate.c (dwfl_module_relocations): Remove over-eager assert. 2010-11-12 Roland McGrath * libdwflP.h (struct Dwfl_Module): New member main_bias. (dwfl_adjusted_address, dwfl_deadjust_address): Use it. * dwfl_module_getdwarf.c (__libdwfl_getelf): Initialize it. * libdwflP.h (dwfl_deadjust_address): New function. (dwfl_deadjust_dwarf_addr, dwfl_deadjust_st_value): New functions. * cu.c (addrarange): Use dwfl_deadjust_dwarf_addr. * dwfl_module_addrsym.c: Use dwfl_deadjust_st_value. 2010-11-11 Roland McGrath * libdwflP.h (struct dwfl_file): Remove bias member. Add vaddr and address_sync members instead. (dwfl_adjusted_address): Calculate using vaddr. (dwfl_adjusted_dwarf_addr): Calculate using address_sync and call that. (dwfl_adjusted_st_value): Use one of those calls. * dwfl_module_getdwarf.c (open_elf): Initialize vaddr and address_sync. * dwfl_segment_report_module.c (dwfl_segment_report_module): Likewise. * derelocate.c (dwfl_module_relocations): Update ET_EXEC assertions. * link_map.c (consider_executable): Adjust only MOD->low_addr for detected PIE bias change. * libdwflP.h (dwfl_adjusted_dwarf_addr): New function. * dwfl_module_info.c: Use it. * cu.c (addrarange): Likewise. * dwfl_dwarf_line.c: Likewise. * dwfl_module_dwarf_cfi.c: Likewise. * dwfl_lineinfo.c: Likewise. * dwfl_nextcu.c: Likewise. * dwfl_module_getdwarf.c (dwfl_module_getdwarf): Likewise. * libdwflP.h (dwfl_adjusted_st_value): New function. * relocate.c (resolve_symbol): Use it. * dwfl_module_getsym.c: Likewise. * dwfl_module_addrsym.c: Likewise. * dwfl_module_info.c: Likewise. * libdwflP.h (dwfl_adjusted_address): New function. * dwfl_module_build_id.c (__libdwfl_find_build_id): Use it. * relocate.c (__libdwfl_relocate_value): Likewise. * derelocate.c (cache_sections): Likewise. (dwfl_module_address_section): Likewise. * dwfl_module_getelf.c: Likewise. * dwfl_module_eh_cfi.c: Likewise. * link_map.c (consider_executable): Likewise. 2010-08-24 Roland McGrath * dwfl_dwarf_line.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. 2010-08-18 Roland McGrath * link_map.c (report_r_debug): Use found name if we have no name, even if we already have an Elf handle. 2010-06-30 Roland McGrath * linux-kernel-modules.c (dwfl_linux_kernel_find_elf): Don't be confused by -1 return from dwfl_build_id_find_elf after it opened the Elf handle. * find-debuginfo.c (dwfl_standard_find_debuginfo): Likewise for dwfl_build_id_find_debuginfo. 2010-06-16 Roland McGrath * cu.c (cudie_offset): Use DIE_OFFSET_FROM_CU_OFFSET macro. 2010-06-14 Roland McGrath * find-debuginfo.c (try_open): Take new arg MAIN_STAT. Compare candidate file to that st_dev/st_ino and pretend it didn't exist if they match. (find_debuginfo_in_path): Update caller, pass main file's info. 2010-05-20 Roland McGrath * linux-proc-maps.c (find_sysinfo_ehdr): Renamed to ... (grovel_auxv): ... this. Take DWFL argument. (dwfl_linux_proc_report): Update caller. * dwfl_module_getdwarf.c (open_elf): Calculate alignment for bias based on dwfl->segment_align or manifest alignment of MOD->low_addr. 2010-05-19 Roland McGrath * linux-kernel-modules.c (intuit_kernel_bounds): Rewritten. 2010-05-06 Roland McGrath * segment.c (insert): Clear inserted elements of DWFL->lookup_module. * libdwflP.h (DWFL_ERRORS): Add WRONG_ID_ELF. * dwfl_build_id_find_elf.c: Set MOD->main.valid when there is a build ID but we didn't find a file. * dwfl_module_getdwarf.c (__libdwfl_getelf): When that's set, check and refuse any fallback file-by-name if it lacks the matching ID. * dwfl_error.c (dwfl_errno): Add INTDEF. * libdwflP.h: Add INTDECL. * dwfl_module_getdwarf.c (open_elf): Do elf_end and clear FILE->elf in failure cases. 2010-05-04 Roland McGrath * dwfl_segment_report_module.c: Use "[pie]" rather than "[dso]" for an ET_DYN that has a DT_DEBUG. * dwfl_segment_report_module.c: Fix jump-start of NDX-finding loop. * segment.c (insert): Fix moving of values following insertion. (reify_segments): Fix up MOD->segment backpointer indices after later insertions in the main loop invalidate them. * link_map.c (dwfl_link_map_report): Detect bias of embedded phdrs and apply it to PT_DYNAMIC p_vaddr so we handle a PIE correctly. * core-file.c (dwfl_core_file_report): Return any nonzero count of modules reported, even if link_map grovelling failed and only sniffing found anything. 2010-04-26 Roland McGrath * relocate.c (relocate_section): Treat R_*_NONE reloc as no reloc. Works around probably-wrong ld -r behavior for case of a DWARF address constant that refers to a discarded SHF_ALLOC section. 2010-04-14 Roland McGrath * link_map.c (report_r_debug): Limit iterations on the l_next chain to an upper bound on sane possible number of elements. 2010-03-11 Roland McGrath * link_map.c (auxv_format_probe): Fix scanning loop, so we really scan the second half for 32-bit matches. 2010-03-10 Roland McGrath * core-file.c (dwfl_core_file_report): Punt EHDR argument. * argp-std.c (parse_opt): Update caller. * libdwfl.h: Declare dwfl_core_file_report. * libdwflP.h: Don't. 2010-02-17 Roland McGrath * dwfl_segment_report_module.c (addr_segndx): Take new flag argument. If set, find the first index not below ADDR. (dwfl_segment_report_module): Update callers. Pass true when calculating return value. 2010-02-15 Roland McGrath * Makefile.am: Use config/eu.am for common stuff. * find-debuginfo.c (find_debuginfo_in_path): Fix uninitialized variable in failure path. 2010-02-02 Mark Wielaard * dwfl_module_dwarf_cfi.c (dwfl_module_dwarf_cfi): Always set bias. * dwfl_module_eh_cfi.c (dwfl_module_eh_cfi): Likewise 2010-01-07 Roland McGrath * core-file.c (dwfl_core_file_report): Use elf_getphdrnum. * dwfl_module_build_id.c (__libdwfl_find_build_id): Likewise. * dwfl_module_getdwarf.c (open_elf, find_dynsym): Likewise. * dwfl_report_elf.c (__libdwfl_report_elf): Likewise. 2010-01-06 Roland McGrath * relocate.c (relocate_getsym): For SHN_COMMON, zero st_value. (relocate_section): Let unresolved SHN_COMMON symbol stay 0. 2009-11-16 Roland McGrath * relocate.c (relocate_section): Skip SHT_NOBITS or empty target scn. 2009-11-12 Petr Machata * core-file.c (dwfl_elf_phdr_memory_callback): Only load ahead if the chunk is both offset-contiguous and vaddr-contiguous. 2009-11-05 Roland McGrath * link_map.c (report_r_debug): Skip entries with l_ld==0. Use dwfl_addrmodule for l_ld lookup, don't bail on lookup failure. 2009-09-04 Roland McGrath * image-header.c (__libdw_image_header): Fix tranposed comparison. 2009-08-27 Roland McGrath * image-header.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwflP.h: Declare __libdw_image_header. * open.c (decompress): Don't consume ELF on failure. (what_kind): New function, broken out of ... (__libdw_open_file): ... here. Call it. If it fails, try __libdw_image_header and then try what_kind again. * gzip.c (unzip): Reuse *WHOLE as first INPUT_BUFFER, leave it behind for next decompressor. * open.c (decompress): Free BUFFER on failure. 2009-08-26 Roland McGrath * gzip.c (find_zImage_payload): New function, broken out of ... (mapped_zImage): ... here. Call it. (find_zImage_payload) [LZMA]: Match LZMA-compressed kernels with stupid method of just trying the decoder. * open.c [USE_LZMA]: Try __libdw_unlzma. * libdwflP.h: Declare it. (DWFL_ERRORS): Add DWFL_E_LZMA. * gzip.c [LZMA]: Implement liblzma version for XZ file format. * lzma.c: New file. * Makefile.am [LZMA] (libdwfl_a_SOURCES): Add it. * gzip.c (mapped_zImage): Limit scan to 32kb. Make this unconditional, support bzip2 kernel images too. (unzip): Use direct inflate method for non-mmap case too. Only zlib uses the stream method. 2009-08-09 Roland McGrath * dwfl_module_build_id.c: Use new macros for versioned definitions. 2009-07-08 Roland McGrath * dwfl_module_dwarf_cfi.c: New file. * dwfl_module_eh_cfi.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add them. * libdwflP.h (struct Dwfl_Module): New members `dwarf_cfi', `eh_cfi. Add INTDECL for dwfl_module_eh_cfi, dwfl_module_dwarf_cfi. 2009-07-08 Roland McGrath * libdwflP.h (struct Dwfl_Module): Reorder members to pack better. 2009-06-18 Mark Wielaard * dwfl_report_elf.c (__libdwfl_report_elf): Return NULL on overlap. 2009-06-13 Ulrich Drepper * derelocate.c: Don't use deprecated libelf functions. * dwfl_module_getdwarf.c: Likewise. * relocate.c: Likewise. 2009-04-23 Ulrich Drepper * dwfl_module_build_id.c: Define versioned symbols only if SHARED is defined. Otherwise just define the latest version. 2009-04-22 Roland McGrath * relocate.c (resolve_symbol): Apply correct bias to st_value found in a non-ET_REL module. * dwfl_module_build_id.c (__libdwfl_find_build_id): Fix last change to adjust properly for non-ET_REL. 2009-04-21 Roland McGrath * dwfl_module_getsym.c: Apply non-ET_REL bias only if SHF_ALLOC. * relocate.c (__libdwfl_relocate_value): Assert that MOD is ET_REL. * derelocate.c (cache_sections): Call __libdwfl_relocate_value only for ET_REL. * dwfl_module_build_id.c (__libdwfl_find_build_id): Likewise. 2009-04-20 Roland McGrath * dwfl_module_getdwarf.c (__libdwfl_getelf): Add internal_function. 2009-04-19 Roland McGrath * dwfl_module_getdwarf.c (find_file): Renamed to ... (__libdwfl_getelf): ... this. Make it global. (find_symtab, find_dw): Update callers. (dwfl_module_getelf): Functions moved ... * dwfl_module_getelf.c: ... here, new file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwflP.h: Declare __libdwfl_getelf. 2009-04-14 Roland McGrath * dwfl_segment_report_module.c: Handle DT_STRTAB value being either absolute (already adjusted in place) or needing load bias adjustment. * core-file.c (dwfl_elf_phdr_memory_callback): Fix return value for gelf_getphdr failure. Fix file size limit checks. * dwfl_segment_report_module.c: Fix underflow in DYNSTRSZ check. 2009-04-08 Roland McGrath * dwfl_module_getsym.c: Don't adjust for bias again after __libdwfl_relocate_value. * relocate.c (__libdwfl_relocate_value): Don't adjust a value from a non-SHF_ALLOC section. (relocate_getsym): Test st_shndx for SHN_* values, not *SHNDX. * dwfl_module_getsym.c (dwfl_module_getsym): Likewise. 2009-03-09 Roland McGrath * dwfl_module_build_id.c (__libdwfl_find_build_id): Move SHSTRNDX variable to outer scope, so we cache it for the loop. * relocate.c (__libdwfl_relocate_value): Add MOD->main.bias to sh_addr. 2009-02-12 Roland McGrath * dwfl_module_build_id.c (__libdwfl_find_build_id): Use __libdwfl_relocate_value to find correct sh_addr value. 2009-02-10 Roland McGrath * dwfl_report_elf.c (__libdwfl_report_elf): Take new arg SANITY. If false, don't fail for NO_PHDR. (dwfl_report_elf): Update caller. * libdwflP.h: Update decl. * offline.c (process_elf): Call it with false, so we don't refuse dubiously-formed objects here. * link_map.c (consider_executable): Don't assert dwfl_addrsegment finds our module. We shouldn't crash when we confuse some guesses. 2009-02-10 Ulrich Drepper * open.c (decompress): Avoid crash with empty input file. 2009-01-27 Roland McGrath * dwfl_report_elf.c (__libdwfl_report_elf): Ignore trailing PT_LOAD with zero vaddr and memsz. 2009-01-22 Roland McGrath * open.c (decompress): Move BUFFER, SIZE decls outside #if. * dwfl_segment_report_module.c (addr_segndx): Remove bogus adjustments after address-matching loop. * segment.c (lookup): Fix fencepost in checking for HINT match. 2009-01-14 Roland McGrath * gzip.c [!BZLIB] (mapped_zImage): New function. (unzip) [!BZLIB]: Grok Linux kernel zImage format. 2009-01-10 Ulrich Drepper * dwfl_error.c: Always use __thread. Remove all !USE_TLS code. 2009-01-08 Roland McGrath * linux-kernel-modules.c (dwfl_linux_kernel_report_offline): Skip subdirectory named "source". (dwfl_linux_kernel_find_elf): Likewise. 2009-01-06 Roland McGrath * linux-kernel-modules.c (check_suffix): New function. Match ".ko", ".ko.gz", and ".ko.bz2" suffixes. (dwfl_linux_kernel_report_offline): Use it. (dwfl_linux_kernel_find_elf): Likewise. 2009-01-05 Roland McGrath * argp-std.c (parse_opt): Use __libdw_open_file for core file. * dwfl_build_id_find_debuginfo.c: Use it to open the file. * dwfl_build_id_find_elf.c: Likewise. * dwfl_module_getdwarf.c (open_elf): Likewise. * dwfl_report_elf.c: Likewise. * find-debuginfo.c (validate): Likewise. * offline.c (__libdwfl_report_offline): Likewise. * libdwflP.h: Declare __libdw_open_file. * open.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * gzip.c: New file. * Makefile.am [ZLIB] (libdwfl_a_SOURCES): Add it. * bzip2.c: New file. * Makefile.am [BZLIB] (libdwfl_a_SOURCES): Add it. * libdwflP.h: Declare __libdw_gunzip, __libdw_bunzip2. 2008-12-16 Roland McGrath * dwfl_module_build_id.c (dwfl_module_build_id): Define with alias and symver magic to bind to ELFUTILS_0.138. (_BUG_COMPAT_dwfl_module_build_id): New function, bug compatible wrapper for ELFUTILS_0.130 version set. 2008-12-18 Roland McGrath * derelocate.c (dwfl_module_relocate_address): Fix last fix: ET_DYN addresses are taken as relative to MOD->low_addr. 2008-12-15 Roland McGrath * derelocate.c (dwfl_module_relocate_address): Apply main.bias, not debug.bias. 2008-12-11 Roland McGrath * offline.c (process_archive): Don't call elf_end and close if returning NULL. Check first elf_begin call and set error code specially for empty archive. Fixes RHBZ#465878. 2008-12-02 Roland McGrath * dwfl_getmodules.c (dwfl_getmodules): Typo fix in last change. 2008-11-26 Roland McGrath * dwfl_getmodules.c (dwfl_getmodules): Encode iteration style in return value, and interpret encoded OFFSET argument. 2008-10-07 Roland McGrath * dwfl_module_build_id.c (check_notes): Fix typo in vaddr calculation. 2008-09-29 Roland McGrath * segment.c (insert): Must realloc DWFL->lookup_module here too. (dwfl_report_segment): Clear DWFL->lookup_module before insert calls. 2008-08-28 Roland McGrath * segment.c (reify_segments): Fix last change. 2008-08-27 Roland McGrath * linux-proc-maps.c (read_proc_memory): Return 0 for EINVAL or EPERM failure from pread64. 2008-08-26 Roland McGrath * segment.c (reify_segments): Insert a trailing segment for a module end that is above the highest current segment. 2008-08-25 Roland McGrath * dwfl_module_getdwarf.c (open_elf): Extract elf_errno () for coded return value, not plain DWFL_E_LIBELF. Return DWFL_E_BADELF if FILE->elf is not ELF_K_ELF. * dwfl_segment_report_module.c: Add a cast. 2008-08-21 Denys Vlasenko * dwfl_module_addrsym.c (dwfl_module_addrsym): Improve logic which decides which symbol is "closest" to a given address. 2008-08-15 Roland McGrath * argp-std.c (offline_callbacks): Use dwfl_build_id_find_elf. (options, parse_opt): Handle --core. * core-file.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwflP.h (dwfl_core_file_report): Declare it. * link_map.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwflP.h (dwfl_link_map_report): Declare it. * libdwflP.h (MIN, MAX): New macros. (Dwfl_Memory_Callback): New typedef. (Dwfl_Module_Callback): New typedef. (dwfl_segment_report_module): Declare it. * dwfl_segment_report_module.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * derelocate.c (dwfl_module_address_section): Add INTDEF. * libdwflP.h: Add INTDECL. * segment.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwfl.h: Declare dwfl_addrsegment, dwfl_report_segment. * libdwflP.h (struct Dwfl): New members lookup_elts, lookup_alloc, lookup_addr, lookup_module, lookup_segndx, replace removed members modules, nmodules. (struct Dwfl_Module): New member segment. * dwfl_end.c (dwfl_end): Free the new ones. Iterate via modulelist to each free module. * dwfl_module.c (dwfl_report_begin_add): Do nothing. (dwfl_report_begin): Don't call it. Truncate the segment table instead. (dwfl_report_module): Don't touch DWFL->nmodules. (dwfl_report_end): Don't touch DWFL->modules and DWFL->nmodules. (compare_modules): Function removed. * dwfl_getmodules.c: Rewritten. Add INTDEF. * libdwflP.h: Add INTDECLs. * dwfl_getdwarf.c: Rewritten to call dwfl_getmodules. * dwfl_addrmodule.c: Rewritten to just call dwfl_addrsegment. 2008-08-03 Roland McGrath * linux-kernel-modules.c: Include before . 2008-07-17 Roland McGrath * dwfl_build_id_find_elf.c (__libdwfl_open_by_build_id): Set errno to zero if the failure was only ENOENT. 2008-06-03 Roland McGrath * dwfl_module_addrsym.c (dwfl_module_addrsym): Exclude undefined symbols. 2008-05-22 Petr Machata * dwfl_module_getdwarf.c (open_elf): Bias of ET_EXEC files is always 0. 2008-05-06 Roland McGrath * linux-kernel-modules.c (dwfl_linux_kernel_report_offline): Use FTS_LOGICAL here too. (dwfl_linux_kernel_find_elf): Likewise. 2008-04-29 Roland McGrath * find-debuginfo.c (dwfl_standard_find_debuginfo): Try path search based on canonicalize_file_name if it differs from the supplied name. * linux-kernel-modules.c (check_module_notes): Use FTS_LOGICAL so we accept symlinks. 2008-04-27 Roland McGrath * linux-kernel-modules.c (report_kernel): Fix crash when dwfl_report_elf fails. 2008-04-05 Roland McGrath * linux-proc-maps.c (proc_maps_report): Don't leak LAST_FILE. * dwfl_module_getdwarf.c (find_file): Always free build_id_bits. Clear it after freeing. * dwfl_module_report_build_id.c (dwfl_module_report_build_id): Likewise. 2008-03-26 Roland McGrath * dwfl_module_getdwarf.c (load_symtab): Don't return success for SHT_DYNSYM, just set *SYMSCN like the comment says. * dwfl_end.c (dwfl_end): Iterate on modulelist chain, not modules array. * argp-std.c (parse_opt): On failure, call dwfl_end before argp_failure. 2008-03-19 Roland McGrath * dwfl_module_getsrc.c: Adjust address for module bias before search. 2008-03-01 Roland McGrath * libdwflP.h (__libdwfl_seterrno): Remove parameter name from prototype to avoid older compiler's complaint about reuse of the name. (__libdwfl_canon_error): Likewise. 2008-02-19 Roland McGrath * relocate.c (relocate_section): Check for an unhandled relocation type before resolving a reloc's symbol. Lift DWFL_E_BADRELTYPE -> DWFL_E_UNKNOWN_MACHINE check out of loops. * dwfl_module_getdwarf.c (load_dw): Skip relocation if DEBUGFILE->relocated is already set. 2008-01-26 Roland McGrath * dwfl_module_getdwarf.c (open_elf): Open FILE->name if it's non-null. * dwfl_build_id_find_elf.c (__libdwfl_open_by_build_id): Don't clear incoming *FILE_NAME at the start. 2008-01-08 Roland McGrath * Makefile.am (euinclude): Variable removed. (pkginclude_HEADERS): Set this instead of euinclude_HEADERS. 2007-10-23 Roland McGrath * linux-kernel-modules.c (report_kernel_archive): Reorder the kernel module to appear first. 2007-10-20 Roland McGrath * offline.c (process_archive_member): Take FD argument, pass it down to process_file. Return Elf_Cmd, not bool. Call elf_next here, always before elf_end. (process_archive): Update caller. Don't close FD here unless there are no member refs. * dwfl_module.c (free_file): Close fd only when elf_end returns zero. * libdwflP.h (struct dwfl_file): New bool member `relocated'. * dwfl_module_getdwarf.c (dwfl_module_getelf): For ET_REL, apply partial relocation to one or both files. (dwfl_module_getdwarf): For ET_REL, make sure extra sections' relocations have been applied to the debug file if dwfl_module_getelf has been used before. * relocate.c (resolve_symbol): New function. (relocate_section): Call it. * relocate.c (relocate_getsym): Handle null MOD->symfile. (relocate_section): Take new bool arg, PARTIAL. If true, no error for BADRELTYPE/RELUNDEF, instead just skip them and leave only those skipped relocs behind the reloc section. (__libdwfl_relocate_section): Take new arg, pass it down. (__libdwfl_relocate): Take new bool arg, DEBUG. If false, do partial relocation on all sections. * dwfl_module_getdwarf.c (load_dw): Update caller. * libdwflP.h: Update decls. * derelocate.c (dwfl_module_address_section): Pass new argument to __libdwfl_relocate_section, true. * derelocate.c (cache_sections): Don't cache reloc sections when section_address callback is null. 2007-10-19 Roland McGrath * relocate.c (relocate_section): Fix fencepost error in r_offset check. * derelocate.c (struct dwfl_relocation): Add member `relocs'. (struct secref): Likewise. (cache_sections): Cache the relocation section referring to each section we cache, if any. (dwfl_module_address_section): Use __libdwfl_relocate_section as necessary. * relocate.c (struct reloc_symtab_cache): New type. (relocate_getsym): Use it instead of four arguments. (__libdwfl_relocate): Update caller. (relocate_section): New function, broken out of ... (__libdwfl_relocate): ... here. (__libdwfl_relocate_section): New function. * libdwflP.h: Declare it. 2007-10-17 Roland McGrath * dwfl_module_getsym.c (dwfl_module_getsym): Apply MOD->symfile->bias to relocated st_value. * dwfl_report_elf.c (__libdwfl_report_elf): Align initial BASE for ET_REL to 0x100. 2007-10-16 Roland McGrath * dwfl_report_elf.c (__libdwfl_report_elf): Readjust BASE when a later section has larger alignment requirements not met by the original BASE, rather than padding more between sections. * dwfl_report_elf.c (__libdwfl_report_elf): Fix bias calculation. * dwfl_module_build_id.c (__libdwfl_find_build_id): Apply module bias to sh_addr value. * dwfl_report_elf.c (__libdwfl_report_elf): Don't be confused by BASE at zero in ET_REL case. Adjust BASE to necessary alignment. * dwfl_module_build_id.c (check_notes): Take -1, not 0, as stub value for DATA_VADDR. (__libdwfl_find_build_id): Update caller. * relocate.c (__libdwfl_relocate_value): Don't use sh_offset. * dwfl_report_elf.c (__libdwfl_report_elf): Likewise. * offline.c (dwfl_offline_section_address): Bail early if there is separate debug file. * relocate.c (__libdwfl_relocate): Don't return DWFL_E_NO_DWARF. 2007-10-09 Roland McGrath * dwfl_report_elf.c (__libdwfl_report_elf): Clear SHDR->sh_offset when caching SHDR->sh_addr = 0. * offline.c (dwfl_offline_section_address): Never called for sh_addr really at 0, don't check for it. Use MOD->debug directly, not symfile. * dwfl_module_getdwarf.c (load_symtab): Return success properly when we've found SHT_SYMTAB. * relocate.c (relocate_getsym): New function. (__libdwfl_relocate): Use it. (__libdwfl_relocate_value): Take new Elf * argument. Make SYMSHSTRNDX be a pointer instead of value; cache getshstrndx result there. * libdwflP.h: Update decl. * derelocate.c (cache_sections): Update caller. Always work on the main file, not the symfile. (dwfl_module_address_section): Likewise. * dwfl_module_getsym.c (dwfl_module_getsym): Update caller. 2007-10-07 Roland McGrath * offline.c (process_archive): Initialize MOD. * linux-kernel-modules.c (get_release): New function, broken out of ... (report_kernel): ... here. Call it. (try_kernel_name): Take new arg TRY_DEBUG, only try ".debug" if set. (find_kernel_elf): Update caller. (report_kernel_archive): New function. (dwfl_linux_kernel_report_offline): Call it. * offline.c (process_file): Take new arg PREDICATE, pass it down. (process_archive): Likewise. (process_archive_member): Likewise. When nonnull, let the predicate decide whether to use this member. (__libdwfl_report_offline): New function, broken out of ... (dwfl_report_offline): ... here. Call it. * libdwflP.h: Declare it. * offline.c (process_archive, process_archive_member): New functions. (process_elf, process_file): New functions, broken out of ... (dwfl_report_offline): ... here. Call process_file, which recurses on ELF_K_AR files. * dwfl_report_elf.c (__libdwfl_report_elf): New, broken out of ... (dwfl_report_elf): ... here. Call it. * libdwflP.h: Declare it. 2007-10-06 Roland McGrath * derelocate.c (dwfl_module_relocations): Don't call dwfl_module_getdwarf. * derelocate.c (find_section): Use __libdwfl_seterrno, not __libdw_seterrno. * relocate.c (__libdwfl_relocate_value): Abuse sh_offset, not SHF_ALLOC, to cache sh_addr resolved to 0. * dwfl_report_elf.c (dwfl_report_elf): When an ET_REL file has sh_addr values nonzero already, just use its existing layout. * relocate.c (__libdwfl_relocate): Clear size of reloc section in its in-core shdr after applying it. 2007-10-04 Ulrich Drepper * linux-kernel-modules.c (dwfl_linux_kernel_report_kernel): Fake initialization of notes variable. 2007-10-04 Roland McGrath * linux-kernel-modules.c (intuit_kernel_bounds): Take new arg NOTES, fill in with vaddr of "__start_notes" symbol if found. (check_notes): New function. (check_kernel_notes): New function. (dwfl_linux_kernel_report_kernel): Call it. (check_module_notes): New function. (dwfl_linux_kernel_report_modules): Call it. * linux-kernel-modules.c (dwfl_linux_kernel_find_elf): Try dwfl_build_id_find_elf first. * linux-kernel-modules.c (report_kernel): Don't leak FD if !REPORT. Set kernel module e_type to ET_DYN. 2007-10-03 Roland McGrath * find-debuginfo.c (validate): New function, broken out of ... (find_debuginfo_in_path): ... here. New function, broken out of ... (dwfl_standard_find_debuginfo): ... here. Call it, after trying dwfl_build_id_find_debuginfo first. * dwfl_build_id_find_elf.c: New file. * dwfl_build_id_find_debuginfo.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add them. * libdwfl.h: Declare them. * libdwflP.h: Add INTDECLs. * dwfl_module_build_id.c: New file. * dwfl_module_report_build_id.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add them. * libdwfl.h: Declare them. * libdwflP.h (struct Dwfl_Module): New members build_id_bits, build_id_len, build_id_vaddr. Declare __libdwfl_find_build_id. * dwfl_module.c (__libdwfl_module_free): Free MOD->build_id_bits. * dwfl_module_getdwarf.c (find_offsets): New function. (find_dynsym): New function, calls that. (find_symtab): Call it. 2007-09-11 Roland McGrath * dwfl_module_addrsym.c: Prefer a later global symbol at the same address if its st_size is smaller. 2007-08-13 Roland McGrath * dwfl_module_addrsym.c: Add dead initializer for stupid compiler. 2007-08-12 Roland McGrath * linux-kernel-modules.c (dwfl_linux_kernel_report_offline): Don't use FTS_LOGICAL. * elf-from-memory.c (elf_from_remote_memory): Don't reset LOADBASE on a second phdr if it happens to match EHDR_VMA exactly. 2007-08-08 Roland McGrath * dwfl_module_addrsym.c: Don't use STT_SECTION, STT_FILE symbols and those with no names. Rewrite best symbol algorithm not to assume a sorted table and to be smarter handling sizeless symbols. 2007-07-16 Roland McGrath * dwfl_module.c (dwfl_report_module): Increment DWFL->nmodules when reviving an existing module. 2007-06-08 Roland McGrath * libdwflP.h: Fix #ifndef for config.h to use PACKAGE_NAME. 2007-05-17 Roland McGrath * linux-kernel-modules.c (dwfl_linux_kernel_report_offline): Look at whole /lib/modules/VERSION tree, not just /lib/modules/VERSION/kernel. (dwfl_linux_kernel_find_elf): Likewise. * linux-kernel-modules.c (dwfl_linux_kernel_report_modules): Use getline and sscanf instead of fscanf. 2007-05-08 Roland McGrath * offline.c (dwfl_offline_section_address): Don't assume section numbers match between stripped and debuginfo files. Instead, assume only that the ordering among SHF_ALLOC sections matches. * linux-kernel-modules.c (report_kernel): Change RELEASE argument to pointer to string. (dwfl_linux_kernel_report_offline): Update caller. (dwfl_linux_kernel_report_kernel): Likewise. 2007-04-23 Roland McGrath * argp-std.c (options): Fix group title string. * argp-std.c (parse_opt): Handle ARGP_KEY_ERROR, free the Dwfl. Update via STATE->input every time we set STATE->hook, not only at ARGP_KEY_SUCCESS. * dwfl_module.c (free_file): Free FILE->name. 2007-04-16 Roland McGrath * derelocate.c (cache_sections): Apply bias to sh_addr. (compare_secrefs): Fix address comparison to avoid signed overflow. (find_section): New function, broken out of ... (dwfl_module_relocate_address): ... here, call it. (check_module): New function, broken out of ... (dwfl_module_relocate_address): ... here, call it. (dwfl_module_address_section): New function. * libdwfl.h: Declare it. 2007-03-26 Roland McGrath * dwfl_module.c (__libdwfl_module_free): Free MOD itself. 2007-03-18 Roland McGrath * dwfl_module_getdwarf.c (find_debuglink): New function, broken out of (find_debuginfo): ... here. Call it. Don't return error for libelf errors finding .gnu_debuglink section. 2007-03-12 Roland McGrath * dwfl_module.c (dwfl_report_begin_add): New function broken out of ... (dwfl_report_begin): ... here. Call it. * libdwfl.h: Declare it. * libdwflP.h: Add INTDECL. * elf-from-memory.c (elf_from_remote_memory): Fix 32/64 typo. * offline.c: Comment typo fix. 2007-03-04 Roland McGrath * linux-kernel-modules.c (KERNEL_MODNAME): New macro for "kernel". (find_kernel_elf): New function, broken out of ... (report_kernel): ... here. Call it. (dwfl_linux_kernel_find_elf): Use it for module named KERNEL_MODNAME. (intuit_kernel_bounds): New function, grovel /proc/kallsyms to guess virtual address bounds of kernel from symbols rounded to page size. (dwfl_linux_kernel_report_kernel): Use that if it works, before resorting to report_kernel. * dwfl_module_getdwarf.c (open_elf): Set MOD->e_type to ET_DYN for an ET_EXEC file with nonzero bias. * dwfl_module_addrname.c (dwfl_module_addrname): Just call dwfl_module_addrsym. Guts moved to ... * dwfl_module_addrsym.c: ... here; new file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwfl.h: Declare dwfl_module_addrsym. * libdwflP.h: Add INTDECL. 2007-03-03 Roland McGrath * dwfl_module.c (free_file): New function, broken out of ... (__libdwfl_module_free): ... here. In it, close fd after elf_end. * dwfl_module_getdwarf.c (open_elf): Close fd and reset to -1 on libelf failure. 2007-03-02 Roland McGrath * linux-kernel-modules.c: Fix bogus error test for asprintf call. 2007-02-02 Roland McGrath * dwfl_addrmodule.c (dwfl_addrmodule): Match a module's high boundary address exactly if it's no other module's low boundary. * dwfl_module_addrname.c (dwfl_module_addrname): If no symbol's value and size cover the address, select the closest symbol with st_size==0 that lies in the same section. 2007-01-29 Roland McGrath * dwfl_version.c (dwfl_version): Return PACKAGE_VERSION, not PACKAGE_STRING. 2007-01-20 Roland McGrath * relocate.c (__libdwfl_relocate_value): Treat section_address of -1 as omitted, not 0. * libdwfl.h (Dwfl_Callbacks): Update comment. * derelocate.c (cache_sections): Don't ignore sh_addr == 0 sections. * linux-kernel-modules.c (dwfl_linux_kernel_module_section_address): For ignored missing section, use -1 instead of 0. * offline.c (dwfl_offline_section_address): Expect a call for 0. 2007-01-19 Roland McGrath * argp-std.c (parse_opt): For -e, reset DWFL->offline_next_address to zero so a lone -e foo.so is shown without address bias. 2007-01-10 Roland McGrath * linux-kernel-modules.c (report_kernel): Check asprintf return value directly instead of via side effect, to silence warn_unused_result. (dwfl_linux_kernel_report_offline): Likewise. (dwfl_linux_kernel_find_elf): Likewise. (dwfl_linux_kernel_module_section_address): Likewise. * find-debuginfo.c (try_open): Likewise. * linux-proc-maps.c (find_sysinfo_ehdr): Likewise. (dwfl_linux_proc_report): Likewise. * libdwfl.h (dwfl_begin): Require nonnull argument. 2006-12-27 Roland McGrath * dwfl_module.c (compare_modules): Fix address comparison to avoid signed overflow. Patch by Frank Ch. Eigler . 2006-10-30 Roland McGrath * dwfl_module.c (dwfl_report_module): Comment typo fix. 2006-09-05 Roland McGrath * derelocate.c (cache_sections): Use alloca instead of variable-sized auto array, in function already using alloca. 2006-08-14 Roland McGrath * linux-kernel-modules.c (try_kernel_name): If the call to dwfl_standard_find_debuginfo produces no results, try it again with NULL as DEBUGLINK_FILE to try *FNAME with .debug suffix. * find-debuginfo.c (DEFAULT_DEBUGINFO_PATH): Macro moved ... * libdwflP.h: ... to here. * linux-kernel-modules.c (try_kernel_name): Skip manual open if it repeats the first thing dwfl_standard_find_debuginfo will try. * linux-kernel-modules.c (MODULE_SECT_NAME_LEN): New macro. (dwfl_linux_kernel_module_section_address): If a /sys file is missing and the section name is >= MODULE_SECT_NAME_LEN, try truncating the section name. 2006-07-12 Ulrich Drepper * cu.c: Adjust for internal_function_def removal. * dwfl_error.c: Likewise. * dwfl_module.c: Likewise. * dwfl_module_getdwarf.c: Likewise. * lines.c: Likewise. * relocate.c: Likewise. 2006-07-11 Ulrich Drepper * dwfl_module.c (compare_modules): Don't return GElf_Sxword value, it can overflow the return value type. Patch by Tim Moore . 2006-06-28 Roland McGrath * libdwfl.h: Cosmetic changes. * dwfl_line_comp_dir.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwfl.h: Declare dwfl_line_comp_dir. * dwfl_lineinfo.c (dwfl_lineinfo): Remove stray extern in defn. * dwfl_linecu.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwfl.h: Declare dwfl_linecu. * libdwflP.h (dwfl_linecu_inline): Function renamed from dwfl_linecu. (dwfl_linecu): Define as macro. * relocate.c (__libdwfl_relocate): Use dwfl_module_getsym. * dwfl_module_getdwarf.c (dwfl_module_getsymtab): New function. (dwfl_module_addrname): Function moved ... * dwfl_module_addrname.c: ... here, new file. * dwfl_module_getsym.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add them. * libdwfl.h: Declare dwfl_module_getsymtab, dwfl_module_getsym. * libdwflP.h: Add INTDECLs. 2006-06-27 Roland McGrath * dwfl_module.c (dwfl_report_end): Whitespace fix. 2006-06-13 Roland McGrath * elf-from-memory.c (elf_from_remote_memory): Fix 32/64 typo. Use __libdwfl_seterrno for elf_memory failure. 2006-05-22 Roland McGrath * dwfl_module_return_value_location.c (dwfl_module_return_value_location): Use __libdwfl_module_getebl. 2006-05-27 Ulrich Drepper * libdwfl.h: Add extern "C". 2006-05-22 Ulrich Drepper * cu.c (addrarange): Handle files without aranges information. 2006-05-16 Ulrich Drepper * dwfl_addrmodule.c (dwfl_addrmodule): Also return NULL of ->modules is NULL. 2006-02-26 Roland McGrath * dwfl_version.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwfl.h: Declare dwfl_version. * offline.c (dwfl_report_offline): Account for dwfl_report_elf having aligned up from DWFL->offline_next_address when checking for overlap. 2005-12-22 Roland McGrath * argp-std.c (parse_opt): Call dwfl_end in failure cases. * linux-proc-maps.c (proc_maps_report): New function, broken out of ... (dwfl_linux_proc_report): ... here. Call it. (dwfl_linux_proc_maps_report): New function. * libdwfl.h: Declare it. * libdwflP.h: Add INTDECL. * argp-std.c (options, parse_opt): Grok -M/--linux-process-map. * dwfl_nextcu.c (dwfl_nextcu): Don't fail when dwfl_module_getdwarf failed with DWFL_E_NO_DWARF. 2005-11-26 Roland McGrath * dwfl_end.c (dwfl_end): Free the DWFL itself. 2005-11-25 Roland McGrath * dwfl_module_getdwarf.c (__libdwfl_module_getebl): New function. (load_dw): Use it. * dwfl_module_register_names.c (dwfl_module_register_names): Likewise. * libdwflP.h: Declare it. * dwfl_module_register_names.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwfl.h: Declare dwfl_module_register_names. 2005-11-21 Roland McGrath * linux-kernel-modules.c (dwfl_linux_kernel_module_section_address): Don't leak malloc'd file name. If a /sys/.../sections file is missing and starts with ".init", try the variant with "_init" too; catches PPC64 kernel braindamage. 2005-11-15 Roland McGrath * libdwfl.h: Comment fixes. * dwfl_module_return_value_location.c: Add unlikely for error case. 2005-11-13 Roland McGrath * dwfl_return_value_location.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwfl.h: Declare dwfl_module_return_value_location. * libdwflP.h (DWFL_ERRORS): Add DWFL_E_WEIRD_TYPE. 2005-10-20 Roland McGrath * libdwflP.h (DWFL_ERRORS): New error UNKNOWN_MACHINE. * relocate.c (__libdwfl_relocate): Return DWFL_E_UNKNOWN_MACHINE instead of DWFL_E_BADRELTYPE if ebl_get_elfmachine yields EM_NONE. 2005-10-01 Roland McGrath * linux-kernel-modules.c (report_kernel): Return ENOENT if we fail with errno 0. 2005-09-19 Roland McGrath * linux-kernel-modules.c (dwfl_linux_kernel_report_modules): Use PRIx64 instead of PRIi64, lest addresses with high bits set overflow the signed integer reading; they will just have to be in hexadecimal. (dwfl_linux_kernel_module_section_address): Likewise. 2005-08-28 Ulrich Drepper * Makefile.am (%.os): Use COMPILE.os. (COMPILE.os): Filter out gconv options. 2005-08-25 Roland McGrath * cu.c (__libdwfl_nextcu): Return success when dwarf_nextcu hits end. * dwfl_nextcu.c (dwfl_nextcu): Skip modules with no dwarf info. 2005-08-24 Roland McGrath * dwfl_lineinfo.c (dwfl_lineinfo): Add bias, don't subtract it. * argp-std.c [_MUDFLAP] (__libdwfl_argp_mudflap_options): New function, magic initializer to set -heur-stack-bound option. 2005-08-22 Roland McGrath * dwfl_validate_address.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwfl.h: Declare dwfl_validate_address. * derelocate.c (dwfl_module_relocate_address): Add INTDEF. * libdwflP.h: Add INTDECL. * dwfl_module_getdwarf.c (find_symtab): Use elf_getdata instead of elf_rawdata for symbol-related sections. * offline.c (dwfl_report_offline): Move offline_next_address outside module's range, in case it's an ET_EXEC using fixed segment locations. * libdwfl.h: Update comment. * dwfl_report_elf.c (dwfl_report_elf): Align BASE to first segment's required alignment. 2005-08-20 Roland McGrath * linux-kernel-modules.c (report_kernel): Take new argument PREDICATE, function to choose whether to report. (dwfl_linux_kernel_report_offline): Likewise. * libdwfl.h: Update decl. * argp-std.c (parse_opt): Update caller. * dwfl_getsrclines.c: New file. * dwfl_onesrcline.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add them. * libdwfl.h: Declare dwfl_getsrclines, dwfl_onesrcline. * linux-kernel-modules.c (dwfl_linux_kernel_find_elf): Don't leak MODULESDIR[0]. Call fts_close on failure. * dwfl_module_getdwarf.c (load_dw): Take dwfl_file * instead of Elf *. Close ET_REL file descriptors after relocation. (find_dw): Update caller. * offline.c (dwfl_report_offline): Get the file into memory and close the file descriptor. * dwfl_module_getdwarf.c (find_debuginfo): Do nothing when MOD->debug.elf is already set. * find-debuginfo.c (try_open): Use TEMP_FAILURE_RETRY. (dwfl_standard_find_debuginfo): Fail on errors not ENOENT or ENOTDIR. * argp-std.c (options, parse_opt): Grok -K/--offline-kernel, use dwfl_linux_kernel_report_offline with offline_callbacks. * linux-kernel-modules.c (report_kernel): New function, broken out of ... (dwfl_linux_kernel_report_kernel): ... here. Use it. (dwfl_linux_kernel_report_offline): New function. * libdwfl.h: Declare it. * libdwflP.h: Add INTDECL. 2005-08-19 Roland McGrath Use standard debuginfo search path to look for vmlinux. * find-debuginfo.c (dwfl_standard_find_debuginfo): Don't check CRC if passed zero. * linux-kernel-modules.c (try_kernel_name): New function, broken out of ... (dwfl_linux_kernel_report_kernel): ... here. Use it. * argp-std.c (offline_callbacks): New variable. (parse_opt): Use it for -e. Allow multiple -e options. * offline.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwfl.h: Declare dwfl_offline_section_address, dwfl_report_offline. * libdwflP.h: Add INTDECLs. (OFFLINE_REDZONE): New macro. (struct Dwfl): New member `offline_next_address'. * dwfl_begin.c (dwfl_begin): Initialize it. * dwfl_module.c (dwfl_report_begin): Likewise. * dwfl_report_elf.c (dwfl_report_elf): Accept all types. When ET_REL, do a nominal absolute section layout starting at BASE. * libdwfl.h: Update comment. 2005-08-18 Roland McGrath * dwfl_module_getsrc_file.c (dwfl_module_getsrc_file): Do dwfl_module_getdwarf if necessary. * dwfl_report_elf.c (dwfl_report_elf): Permit ET_REL with BASE==0. * libdwfl.h: Update comment. * derelocate.c: New file. * Makefile.am (libdwfl_a_SOURCES): Add it. * libdwflP.h (struct Dwfl_Module): isrel -> e_type. * dwfl_report_elf.c (dwfl_report_elf): Initialize it. * dwfl_module_getdwarf.c (open_elf): Update initialization. (load_dw, dwfl_module_addrname): Update uses. * relocate.c (__libdwfl_relocate): Likewise. 2005-08-04 Roland McGrath * libdwfl.h (Dwfl_Callbacks.section_address): Take additional arguments SHNDX, SHDR. (dwfl_linux_kernel_module_section_address): Update prototype. * relocate.c (__libdwfl_relocate_value): Update caller. * linux-kernel-modules.c (dwfl_linux_kernel_module_section_address): Take the new arguments. 2005-08-10 Roland McGrath * relocate.c (__libdwfl_relocate): Take argument DEBUGFILE, use it instead of MOD->debug.file. * libdwflP.h: Update decl. * dwfl_module_getdwarf.c (load_dw): Update caller. Fixes bug #165598. 2005-08-09 Roland McGrath * libdwflP.h: Include ../libdw/libdwP.h for its INTDECLs. * cu.c: Use INTUSE on dwarf_* calls. * dwfl_error.c: Likewise. * dwfl_module.c: Likewise. * dwfl_module_getdwarf.c: Likewise. * dwfl_module_getsrc_file.c: Likewise. * lines.c: Likewise. 2005-08-07 Roland McGrath * linux-kernel-modules.c (dwfl_linux_kernel_find_elf): When module names contain '_' or '-', look for files named either "foo-bar.ko" or "foo_bar.ko". 2005-07-29 Roland McGrath * loc2c.c: File removed. * loc2c.h: File removed. * loc2c-runtime.h: File removed. * test2.c: File removed. * Makefile.am (EXTRA_DIST): Variable removed. (noinst_HEADERS): Remove loc2c.h from here. 2005-07-28 Ulrich Drepper * libdwfl.h: Add a few missing extern for function prototypes. * libdwfl_crc32.c: New file. * libdwfl_crc32_file.c: New file. * libdwflP.h: Declare the new functions. * Makefile.am (libdwfl_a_SOURCES): Add libdwfl_crc32.c and libdwfl_crc32_file.c. * libdwfl/find-debuginfo.c (check_crc): Use __libdwfl_crc32_file instead of crc32_file. 2005-07-28 Roland McGrath * ptest.c: Moved to ../tests/dwflmodtest.c. * Makefile.am (noinst_PROGRAMS): Variable removed. (libdwfl_so_SOURCES, libdwfl_LIBS, libdwfl_so_LDADD): Likewise. (EXTRA_DIST, ptest_LDADD, test2_LDADD): Likewise. (libdwfl): Don't use libdwfl.so any more. (libdwfl.so, install, uninstall): Targets removed. (test2_SOURCES): Define EXTRA_DIST instead of this. * libdwfl.map: File removed. * libdwfl.h: Use "" for libdw.h #include. 2005-07-27 Roland McGrath * libdwfl.map: Add dwfl_getmodules. 2005-07-23 Ulrich Drepper * Makefile.am: Fix rules to allow building with mudflap. 2005-07-21 Roland McGrath * Makefile.am (noinst_HEADERS): Add loc2c.c. * test2.c (main): Check sscanf result to quiet warning. 2005-07-20 Roland McGrath * libdwfl-branch merged, creating this direcotry.