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The lm_info structure is used to store target specific information about mapped libraries. It is currently defined as an opaque type in solist.h and a pointer to it is included in solist, the target-agnostic object representing a loaded shared library. Multiple targets define their own implementation of lm_info. In anticipation of using C++ stuff (e.g. vector) in the lm_info objects, we first need to avoid different definitions of classes with the same name (which violates the one definition rule). This patch does it by having a base class (lm_info_base) from which all the specific lm_info derive. Each implementation is renamed to something that makes sense (e.g. lm_info_aix for AIX). The next logical step would probably be to derive directly from so_list, it's not really obvious, so I'll keep that for another day. One special case is the Neutrino (nto) support. It uses SVR4-style libraries, but overrides some methods. To do that, it needed to have its own copy of SVR4's lm_info structure in nto-tdep.c, because it was just not possible to put it in solib-svr4.h and include that file. Over time, that copy got out of sync, which is still the case today. I can only assume that the lm_addr function in nto-tdep.c is broken right now. The first field of the old lm_info was a pointer (gdb_byte *), whereas in the new lm_info it's an address in the inferior (CORE_ADDR). Trying to use that field today probably results in a crash. With this refactor, it's now possible to put lm_info_svr4 in solib-svr4.h and just include it. I have adapted the code in nto-tdep.c to that it builds, but it's probably not correct. Since I don't have the knowledge nor setup to try this on Neutrino, somebody else would have to fix it. But I am confident that I am not making things worse than they already are. gdb/ChangeLog: * solist.h (struct lm_info): Remove. (struct lm_info_base): New class. (struct so_list) <lm_info>: Change type to lm_info_base *. * nto-tdep.c (struct lm_info): Remove. (lm_addr): Adjust. * solib-aix.c (struct lm_info): Rename to ... (struct lm_info_aix): ... this. Extend lm_info_base. (lm_info_p): Rename to ... (lm_info_aix_p): ... this, and adjust. (solib_aix_new_lm_info, solib_aix_xfree_lm_info, solib_aix_parse_libraries, library_list_start_library, solib_aix_free_library_list, solib_aix_parse_libraries, solib_aix_get_library_list, solib_aix_relocate_section_addresses, solib_aix_free_so, solib_aix_get_section_offsets, solib_aix_solib_create_inferior_hook, solib_aix_current_sos): Adjust. (struct solib_aix_inferior_data) <library_list>: Adjust. * solib-darwin.c (struct lm_info): Rename to ... (struct lm_info_darwin): ... this. Extend lm_info_base. (darwin_current_sos, darwin_relocate_section_addresses): Adjust. * solib-dsbt.c (struct lm_info): Rename to ... (struct lm_info_dsbt): ... this. Extend lm_info_base. (struct dsbt_info) <main_executable_lm_info): Adjust. (dsbt_current_sos, dsbt_relocate_main_executable, dsbt_free_so, dsbt_relocate_section_addresses): Adjust. * solib-frv.c (struct lm_info): Rename to ... (struct lm_info_frv): ... this. Extend lm_info_base. (main_executable_lm_info): Adjust. (frv_current_sos, frv_relocate_main_executable, frv_free_so, frv_relocate_section_addresses, frv_fdpic_find_global_pointer, find_canonical_descriptor_in_load_object, frv_fdpic_find_canonical_descriptor): Adjust. * solib-svr4.c (struct lm_info): Move to solib-svr4.h, renamed to lm_info_svr4. (lm_info_read, lm_addr_check, svr4_keep_data_in_core, svr4_clear_so, svr4_copy_library_list, library_list_start_library, svr4_default_sos, svr4_read_so_list, svr4_current_sos, svr4_fetch_objfile_link_map, solist_update_incremental): Adjust. * solib-svr4.h (struct lm_info_svr4): Move here from solib-svr4.c. * solib-target.c (struct lm_info): Rename to ... (struct lm_info_target): ... this. Extend lm_info_base. (lm_info_p): Rename to ... (lm_info_target_p): ... this. (solib_target_parse_libraries, library_list_start_segment, library_list_start_section, library_list_start_library, library_list_end_library, solib_target_free_library_list, solib_target_current_sos, solib_target_free_so, solib_target_relocate_section_addresses): Adjust. * windows-nat.c (struct lm_info): Rename to ... (struct lm_info_windows): ... this. Extend lm_info_base. (windows_make_so, handle_load_dll, handle_unload_dll, windows_xfer_shared_libraries): Adjust.
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.