diff options
Diffstat (limited to 'gold/yyscript.y')
| -rw-r--r-- | gold/yyscript.y | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/gold/yyscript.y b/gold/yyscript.y index a037906..ad76709 100644 --- a/gold/yyscript.y +++ b/gold/yyscript.y @@ -60,6 +60,8 @@ struct Parser_output_section_header output_section_header; /* An output section trailer. */ struct Parser_output_section_trailer output_section_trailer; + /* A section constraint. */ + enum Section_constraint constraint; /* A complete input section specification. */ struct Input_section_spec input_section_spec; /* A list of wildcard specifications, with exclusions. */ @@ -195,6 +197,7 @@ %type <expr> opt_at opt_align opt_subalign opt_fill %type <output_section_header> section_header %type <output_section_trailer> section_trailer +%type <constraint> opt_constraint %type <integer> data_length %type <input_section_spec> input_section_no_keep %type <wildcard_sections> wildcard_sections @@ -229,6 +232,8 @@ file_cmd: { script_end_group(closure); } | OPTION '(' string ')' { script_parse_option(closure, $3.value, $3.length); } + | SEARCH_DIR '(' string ')' + { script_add_search_dir(closure, $3.value, $3.length); } | SECTIONS '{' { script_start_sections(closure); } sections_block '}' @@ -239,6 +244,7 @@ file_cmd: { script_pop_lex_mode(closure); } | file_or_sections_cmd | ignore_cmd + | ';' ; /* Top level commands which we ignore. The GNU linker uses these to @@ -287,12 +293,14 @@ section_block_cmd: section_header: { script_push_lex_into_expression_mode(closure); } opt_address_and_section_type opt_at opt_align opt_subalign + { script_pop_lex_mode(closure); } + opt_constraint { $$.address = $2; $$.load_address = $3; $$.align = $4; $$.subalign = $5; - script_pop_lex_mode(closure); + $$.constraint = $7; } ; @@ -340,13 +348,23 @@ opt_subalign: { $$ = $3; } ; +/* A section constraint. */ +opt_constraint: + /* empty */ + { $$ = CONSTRAINT_NONE; } + | ONLY_IF_RO + { $$ = CONSTRAINT_ONLY_IF_RO; } + | ONLY_IF_RW + { $$ = CONSTRAINT_ONLY_IF_RW; } + | SPECIAL + { $$ = CONSTRAINT_SPECIAL; } + ; + /* The trailer of an output section in a SECTIONS block. */ section_trailer: - { script_push_lex_into_expression_mode(closure); } opt_memspec opt_at_memspec opt_phdr opt_fill opt_comma { - $$.fill = $5; - script_pop_lex_mode(closure); + $$.fill = $4; } ; @@ -374,7 +392,7 @@ opt_phdr: /* The value to use to fill an output section. FIXME: This does not handle a string of arbitrary length. */ opt_fill: - '=' exp + '=' parse_exp { $$ = $2; } | /* empty */ { $$ = NULL; } @@ -405,6 +423,7 @@ section_cmd: some ELF linker scripts use it although it does nothing, we accept it and ignore it. */ } + | SORT_BY_NAME '(' CONSTRUCTORS ')' | ';' ; |