diff options
Diffstat (limited to 'gold/yyscript.y')
| -rw-r--r-- | gold/yyscript.y | 116 |
1 files changed, 77 insertions, 39 deletions
diff --git a/gold/yyscript.y b/gold/yyscript.y index 40acb00a2..a1d58d3 100644 --- a/gold/yyscript.y +++ b/gold/yyscript.y @@ -82,6 +82,7 @@ /* Constants. */ %token <string> STRING +%token <string> QUOTED_STRING %token <integer> INTEGER /* Keywords. This list is taken from ldgram.y and ldlex.l in the old @@ -185,6 +186,7 @@ %type <versyms> vers_defns %type <versnode> vers_tag %type <deplist> verdep +%type <string> string %% @@ -207,7 +209,7 @@ file_cmd: { script_start_group(closure); } '(' input_list ')' { script_end_group(closure); } - | OPTION '(' STRING ')' + | OPTION '(' string ')' { script_parse_option(closure, $3.value, $3.length); } | VERSIONK '{' { script_push_lex_into_version_mode(closure); } @@ -222,9 +224,9 @@ file_cmd: these is more-or-less OK since most scripts simply explicitly choose the default. */ ignore_cmd: - OUTPUT_FORMAT '(' STRING ')' - | OUTPUT_FORMAT '(' STRING ',' STRING ',' STRING ')' - | OUTPUT_ARCH '(' STRING ')' + OUTPUT_FORMAT '(' string ')' + | OUTPUT_FORMAT '(' string ',' string ',' string ')' + | OUTPUT_ARCH '(' string ')' ; /* A list of input file names. */ @@ -235,7 +237,7 @@ input_list: /* An input file name. */ input_list_element: - STRING + string { script_add_file(closure, $1.value, $1.length); } | AS_NEEDED { script_start_as_needed(closure); } @@ -246,66 +248,66 @@ input_list_element: /* A command which may appear at the top level of a linker script, or within a SECTIONS block. */ file_or_sections_cmd: - ENTRY '(' STRING ')' + ENTRY '(' string ')' { script_set_entry(closure, $3.value, $3.length); } | assignment end ; /* Set a symbol to a value. */ assignment: - STRING '=' parse_exp + string '=' parse_exp { script_set_symbol(closure, $1.value, $1.length, $3, 0, 0); } - | STRING PLUSEQ parse_exp + | string PLUSEQ parse_exp { Expression_ptr s = script_exp_string($1.value, $1.length); Expression_ptr e = script_exp_binary_add(s, $3); script_set_symbol(closure, $1.value, $1.length, e, 0, 0); } - | STRING MINUSEQ parse_exp + | string MINUSEQ parse_exp { Expression_ptr s = script_exp_string($1.value, $1.length); Expression_ptr e = script_exp_binary_sub(s, $3); script_set_symbol(closure, $1.value, $1.length, e, 0, 0); } - | STRING MULTEQ parse_exp + | string MULTEQ parse_exp { Expression_ptr s = script_exp_string($1.value, $1.length); Expression_ptr e = script_exp_binary_mult(s, $3); script_set_symbol(closure, $1.value, $1.length, e, 0, 0); } - | STRING DIVEQ parse_exp + | string DIVEQ parse_exp { Expression_ptr s = script_exp_string($1.value, $1.length); Expression_ptr e = script_exp_binary_div(s, $3); script_set_symbol(closure, $1.value, $1.length, e, 0, 0); } - | STRING LSHIFTEQ parse_exp + | string LSHIFTEQ parse_exp { Expression_ptr s = script_exp_string($1.value, $1.length); Expression_ptr e = script_exp_binary_lshift(s, $3); script_set_symbol(closure, $1.value, $1.length, e, 0, 0); } - | STRING RSHIFTEQ parse_exp + | string RSHIFTEQ parse_exp { Expression_ptr s = script_exp_string($1.value, $1.length); Expression_ptr e = script_exp_binary_rshift(s, $3); script_set_symbol(closure, $1.value, $1.length, e, 0, 0); } - | STRING ANDEQ parse_exp + | string ANDEQ parse_exp { Expression_ptr s = script_exp_string($1.value, $1.length); Expression_ptr e = script_exp_binary_bitwise_and(s, $3); script_set_symbol(closure, $1.value, $1.length, e, 0, 0); } - | STRING OREQ parse_exp + | string OREQ parse_exp { Expression_ptr s = script_exp_string($1.value, $1.length); Expression_ptr e = script_exp_binary_bitwise_or(s, $3); script_set_symbol(closure, $1.value, $1.length, e, 0, 0); } - | PROVIDE '(' STRING '=' parse_exp ')' + | PROVIDE '(' string '=' parse_exp ')' { script_set_symbol(closure, $3.value, $3.length, $5, 1, 0); } - | PROVIDE_HIDDEN '(' STRING '=' parse_exp ')' + | PROVIDE_HIDDEN '(' string '=' parse_exp ')' { script_set_symbol(closure, $3.value, $3.length, $5, 1, 1); } ; @@ -373,27 +375,29 @@ exp: { $$ = script_exp_integer($1); } | STRING { $$ = script_exp_string($1.value, $1.length); } + | QUOTED_STRING + { $$ = script_exp_string($1.value, $1.length); } | MAX_K '(' exp ',' exp ')' { $$ = script_exp_function_max($3, $5); } | MIN_K '(' exp ',' exp ')' { $$ = script_exp_function_min($3, $5); } - | DEFINED '(' STRING ')' + | DEFINED '(' string ')' { $$ = script_exp_function_defined($3.value, $3.length); } | SIZEOF_HEADERS { $$ = script_exp_function_sizeof_headers(); } - | ALIGNOF '(' STRING ')' + | ALIGNOF '(' string ')' { $$ = script_exp_function_alignof($3.value, $3.length); } - | SIZEOF '(' STRING ')' + | SIZEOF '(' string ')' { $$ = script_exp_function_sizeof($3.value, $3.length); } - | ADDR '(' STRING ')' + | ADDR '(' string ')' { $$ = script_exp_function_addr($3.value, $3.length); } - | LOADADDR '(' STRING ')' + | LOADADDR '(' string ')' { $$ = script_exp_function_loadaddr($3.value, $3.length); } - | ORIGIN '(' STRING ')' + | ORIGIN '(' string ')' { $$ = script_exp_function_origin($3.value, $3.length); } - | LENGTH '(' STRING ')' + | LENGTH '(' string ')' { $$ = script_exp_function_length($3.value, $3.length); } - | CONSTANT '(' STRING ')' + | CONSTANT '(' string ')' { $$ = script_exp_function_constant($3.value, $3.length); } | ABSOLUTE '(' exp ')' { $$ = script_exp_function_absolute($3); } @@ -409,17 +413,17 @@ exp: { $$ = script_exp_function_data_segment_relro_end($3, $5); } | DATA_SEGMENT_END '(' exp ')' { $$ = script_exp_function_data_segment_end($3); } - | SEGMENT_START '(' STRING ',' exp ')' + | SEGMENT_START '(' string ',' exp ')' { $$ = script_exp_function_segment_start($3.value, $3.length, $5); } - | ASSERT_K '(' exp ',' STRING ')' + | ASSERT_K '(' exp ',' string ')' { $$ = script_exp_function_assert($3, $5.value, $5.length); } ; /* Handle the --defsym option. */ defsym_expr: - STRING '=' parse_exp + string '=' parse_exp { script_set_symbol(closure, $1.value, $1.length, $3, 0, 0); } ; @@ -438,23 +442,23 @@ vers_node: { script_register_vers_node (closure, NULL, 0, $2, NULL); } - | STRING '{' vers_tag '}' ';' + | string '{' vers_tag '}' ';' { script_register_vers_node (closure, $1.value, $1.length, $3, NULL); } - | STRING '{' vers_tag '}' verdep ';' + | string '{' vers_tag '}' verdep ';' { script_register_vers_node (closure, $1.value, $1.length, $3, $5); } ; verdep: - STRING + string { $$ = script_add_vers_depend (closure, NULL, $1.value, $1.length); } - | verdep STRING + | verdep string { $$ = script_add_vers_depend (closure, $1, $2.value, $2.length); } @@ -473,36 +477,70 @@ vers_tag: { $$ = script_new_vers_node (closure, $3, $7); } ; +/* Here is one of the rare places we care about the distinction + between STRING and QUOTED_STRING. For QUOTED_STRING, we do exact + matching on the pattern, so we pass in true for the exact_match + parameter. For STRING, we do glob matching and pass in false. */ vers_defns: STRING { $$ = script_new_vers_pattern (closure, NULL, $1.value, - $1.length); + $1.length, 0); + } + | QUOTED_STRING + { + $$ = script_new_vers_pattern (closure, NULL, $1.value, + $1.length, 1); } | vers_defns ';' STRING { - $$ = script_new_vers_pattern (closure, $1, $3.value, $3.length); + $$ = script_new_vers_pattern (closure, $1, $3.value, + $3.length, 0); + } + | vers_defns ';' QUOTED_STRING + { + $$ = script_new_vers_pattern (closure, $1, $3.value, + $3.length, 1); } - | /* Push STRING on the language stack. */ - EXTERN STRING '{' - { version_script_push_lang(closure, $2.value, $2.length); } + | /* Push string on the language stack. */ + EXTERN string '{' + { version_script_push_lang (closure, $2.value, $2.length); } vers_defns opt_semicolon '}' { $$ = $5; version_script_pop_lang(closure); } + | /* Push string on the language stack. This is more complicated + than the other cases because we need to merge the linked-list + state from the pre-EXTERN defns and the post-EXTERN defns. */ + vers_defns ';' EXTERN string '{' + { version_script_push_lang (closure, $4.value, $4.length); } + vers_defns opt_semicolon '}' + { + $$ = script_merge_expressions ($1, $7); + version_script_pop_lang(closure); + } | EXTERN // "extern" as a symbol name { $$ = script_new_vers_pattern (closure, NULL, "extern", - sizeof("extern") - 1); + sizeof("extern") - 1, 1); } | vers_defns ';' EXTERN { $$ = script_new_vers_pattern (closure, $1, "extern", - sizeof("extern") - 1); + sizeof("extern") - 1, 1); } ; +/* A string can be either a STRING or a QUOTED_STRING. Almost all the + time we don't care, and we use this rule. */ +string: + STRING + { $$ = $1; } + | QUOTED_STRING + { $$ = $1; } + ; + /* Some statements require a terminator, which may be a semicolon or a comma. */ end: |