diff --git a/gdb/auto-load.c b/gdb/auto-load.c index 9a1ccec87ce..5253b320543 100644 --- a/gdb/auto-load.c +++ b/gdb/auto-load.c @@ -51,6 +51,9 @@ followed by the path of a python script to load. */ #define AUTO_SECTION_NAME ".debug_gdb_scripts" +/* The section to look in for the name of a separate debug file. */ +#define DEBUGLINK_SECTION_NAME ".gnu_debuglink" + static void maybe_print_unsupported_script_warning (struct auto_load_pspace_info *, struct objfile *objfile, const struct extension_language_defn *language, @@ -823,24 +826,61 @@ auto_load_objfile_script (struct objfile *objfile, gdb::unique_xmalloc_ptr realname = gdb_realpath (objfile_name (objfile)); - if (!auto_load_objfile_script_1 (objfile, realname.get (), language)) + if (auto_load_objfile_script_1 (objfile, realname.get (), language)) + return; + + /* For Windows/DOS .exe executables, strip the .exe suffix, so that + FOO-gdb.gdb could be used for FOO.exe, and try again. */ + + size_t len = strlen (realname.get ()); + const size_t lexe = sizeof (".exe") - 1; + + if (len > lexe && strcasecmp (realname.get () + len - lexe, ".exe") == 0) { - /* For Windows/DOS .exe executables, strip the .exe suffix, so that - FOO-gdb.gdb could be used for FOO.exe, and try again. */ + len -= lexe; + realname.get ()[len] = '\0'; - size_t len = strlen (realname.get ()); - const size_t lexe = sizeof (".exe") - 1; + auto_load_debug_printf + ("auto-load: Stripped .exe suffix, retrying with \"%s\".", + realname.get ()); - if (len > lexe && strcasecmp (realname.get () + len - lexe, ".exe") == 0) + auto_load_objfile_script_1 (objfile, realname.get (), language); + return; + } + + /* If OBJFILE is a separate debug file and its name does not match + the name given in the parent's .gnu_debuglink section, try to + find the auto-load script using the parent's path and the + debuglink name. */ + + struct objfile *parent = objfile->separate_debug_objfile_backlink; + if (parent != nullptr) + { + unsigned long crc32; + gdb::unique_xmalloc_ptr debuglink + (bfd_get_debug_link_info (parent->obfd, &crc32)); + + if (debuglink.get () != nullptr + && strcmp (debuglink.get (), lbasename (realname.get ())) != 0) { - len -= lexe; - realname.get ()[len] = '\0'; + /* Replace the last component of the parent's path with the + debuglink name. */ - auto_load_debug_printf - ("auto-load: Stripped .exe suffix, retrying with \"%s\".", - realname.get ()); + std::string p_realname = gdb_realpath (objfile_name (parent)).get (); + size_t last = p_realname.find_last_of ('/'); - auto_load_objfile_script_1 (objfile, realname.get (), language); + if (last != std::string::npos) + { + p_realname.replace (last + 1, std::string::npos, + debuglink.get ()); + + auto_load_debug_printf + ("Debug filename mismatch, retrying with \"%s\".", + p_realname.c_str ()); + + auto_load_objfile_script_1 (objfile, + p_realname.c_str (), language); + } } } }