PR ld/10340
* ldfile.c (is_sysrooted_pathname): Remove notsame param.
(ldfile_add_library_path): Don't set sysrooted flag.
(ldfile_open_file_search): Likewise, and don't copy them.
(try_open): Delete exten and code handling such. Add sysrooted
param and return whether path is in sysroot.
(ldfile_find_command_file): Delete extend param. Add sysrooted
param. Rename local var. Update try_open calls.
(ldfile_open_command_file_1): Pass sysrooted to lex_push_file.
* ldfile.h (search_dirs_type): Remove sysrooted field.
* ldlang.c (new_afile): Always set sysrooted from input_flags.
(load_symbols): Don't set input_flags.sysrooted.
* ldlang.h (struct lang_input_statement_flags): Revise sysrooted
comment.
* ldlex.h (lex_push_file): Update prototype.
* ldlex.l (sysrooted_stack): New array.
(EOF): Pop input_flags.sysrooted.
(lex_push_file): Add sysrooted param. Save and set
input_flags.sysrooted.