+/* Called by the bison parser to set the entry symbol. */
+
+extern void
+script_set_entry(void* closure, const char*, size_t);
+
+/* Called by the bison parser to set whether to define common symbols. */
+
+extern void
+script_set_common_allocation(void* closure, int);
+
+/* Called by the bison parser to parse an OPTION. */
+
+extern void
+script_parse_option(void* closure, const char*, size_t);
+
+/* Called by the bison parser to handle OUTPUT_FORMAT. This return 0
+ if the parse should be aborted. */
+
+extern int
+script_check_output_format(void* closure, const char*, size_t,
+ const char*, size_t, const char*, size_t);
+
+/* Called by the bison parser to handle TARGET. */
+extern void
+script_set_target(void* closure, const char*, size_t);
+
+/* Called by the bison parser to handle SEARCH_DIR. */
+
+extern void
+script_add_search_dir(void* closure, const char*, size_t);
+
+/* Called by the bison parser to push the lexer into expression
+ mode. */
+
+extern void
+script_push_lex_into_expression_mode(void* closure);
+
+/* Called by the bison parser to push the lexer into version
+ mode. */
+
+extern void
+script_push_lex_into_version_mode(void* closure);
+
+/* Called by the bison parser to pop the lexer mode. */
+
+extern void
+script_pop_lex_mode(void* closure);
+
+/* Called by the bison parser to get the value of a symbol. This is
+ called for a reference to a symbol, but is not called for something
+ like "sym += 10". Uses of the special symbol "." can just call
+ script_exp_string. */
+
+extern Expression_ptr
+script_symbol(void* closure, const char*, size_t);
+
+/* Called by the bison parser to set a symbol to a value. PROVIDE is
+ non-zero if the symbol should be provided--only defined if there is
+ an undefined reference. HIDDEN is non-zero if the symbol should be
+ hidden. */
+
+extern void
+script_set_symbol(void* closure, const char*, size_t, Expression_ptr,
+ int provide, int hidden);
+
+/* Called by the bison parser to add an assertion. */
+
+extern void
+script_add_assertion(void* closure, Expression_ptr, const char* message,
+ size_t messagelen);
+
+/* Called by the bison parser to start a SECTIONS clause. */
+
+extern void
+script_start_sections(void* closure);
+
+/* Called by the bison parser to finish a SECTIONS clause. */
+
+extern void
+script_finish_sections(void* closure);
+
+/* Called by the bison parser to start handling input section
+ specifications for an output section. */
+
+extern void
+script_start_output_section(void* closure, const char* name, size_t namelen,
+ const struct Parser_output_section_header*);
+
+/* Called by the bison parser when done handling input section
+ specifications for an output section. */
+
+extern void
+script_finish_output_section(void* closure,
+ const struct Parser_output_section_trailer*);
+
+/* Called by the bison parser to handle a data statement (LONG, BYTE,
+ etc.) in an output section. */
+
+extern void
+script_add_data(void* closure, int data_token, Expression_ptr val);
+
+/* Called by the bison parser to set the fill value in an output
+ section. */
+
+extern void
+script_add_fill(void* closure, Expression_ptr val);
+
+/* Called by the bison parser to add an input section specification to
+ an output section. The KEEP parameter is non-zero if this is
+ within a KEEP clause, meaning that the garbage collector should not
+ discard it. */
+
+extern void
+script_add_input_section(void* closure, const struct Input_section_spec*,
+ int keep);
+
+/* Create a new list of string and sort entries. */
+
+extern String_sort_list_ptr
+script_new_string_sort_list(const struct Wildcard_section*);
+
+/* Add an entry to a list of string and sort entries. */
+
+extern String_sort_list_ptr
+script_string_sort_list_add(String_sort_list_ptr,
+ const struct Wildcard_section*);
+
+/* Create a new list of strings. */
+
+extern String_list_ptr
+script_new_string_list(const char*, size_t);
+
+/* Add an element to a list of strings. */
+
+extern String_list_ptr
+script_string_list_push_back(String_list_ptr, const char*, size_t);
+
+/* Concatenate two string lists. */
+
+extern String_list_ptr
+script_string_list_append(String_list_ptr, String_list_ptr);
+
+/* Define a new program header. */
+
+extern void
+script_add_phdr(void* closure, const char* name, size_t namelen,
+ unsigned int type, const struct Phdr_info*);
+
+/* Convert a program header string to a type. */
+
+extern unsigned int
+script_phdr_string_to_type(void* closure, const char*, size_t);
+
+/* Handle DATA_SEGMENT_ALIGN and DATA_SEGMENT_RELRO_END. */
+
+extern void
+script_data_segment_align(void* closure);
+
+extern void
+script_data_segment_relro_end(void* closure);
+
+/* Record the fact that a SEGMENT_START expression is seen. */
+
+extern void
+script_saw_segment_start_expression(void* closure);
+
+/* Called by the bison parser for MEMORY regions. */
+
+extern void
+script_add_memory(void*, const char*, size_t, unsigned int,
+ Expression_ptr, Expression_ptr);
+
+extern unsigned int
+script_parse_memory_attr(void*, const char*, size_t, int);
+
+extern void
+script_set_section_region(void*, const char*, size_t, int);
+
+extern void
+script_include_directive(int, void *, const char*, size_t);
+
+/* Called by the bison parser for expressions. */
+
+extern Expression_ptr
+script_exp_unary_minus(Expression_ptr);
+extern Expression_ptr
+script_exp_unary_logical_not(Expression_ptr);
+extern Expression_ptr
+script_exp_unary_bitwise_not(Expression_ptr);
+extern Expression_ptr
+script_exp_binary_mult(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_div(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_mod(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_add(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_sub(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_lshift(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_rshift(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_eq(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_ne(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_le(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_ge(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_lt(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_gt(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_bitwise_and(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_bitwise_xor(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_bitwise_or(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_logical_and(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_binary_logical_or(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_trinary_cond(Expression_ptr, Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_integer(uint64_t);
+extern Expression_ptr
+script_exp_string(const char*, size_t);
+extern Expression_ptr
+script_exp_function_max(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_function_min(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_function_defined(const char*, size_t);
+extern Expression_ptr
+script_exp_function_sizeof_headers(void);
+extern Expression_ptr
+script_exp_function_alignof(const char*, size_t);
+extern Expression_ptr
+script_exp_function_sizeof(const char*, size_t);
+extern Expression_ptr
+script_exp_function_addr(const char*, size_t);
+extern Expression_ptr
+script_exp_function_loadaddr(const char*, size_t);
+extern Expression_ptr
+script_exp_function_origin(void*, const char*, size_t);
+extern Expression_ptr
+script_exp_function_length(void*, const char*, size_t);
+extern Expression_ptr
+script_exp_function_constant(const char*, size_t);
+extern Expression_ptr
+script_exp_function_absolute(Expression_ptr);
+extern Expression_ptr
+script_exp_function_align(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_function_data_segment_align(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_function_data_segment_relro_end(Expression_ptr, Expression_ptr);
+extern Expression_ptr
+script_exp_function_data_segment_end(Expression_ptr);
+extern Expression_ptr
+script_exp_function_segment_start(const char*, size_t, Expression_ptr);
+extern Expression_ptr
+script_exp_function_assert(Expression_ptr, const char*, size_t);
+
+extern void
+script_register_vers_node(void* closure,
+ const char* tag,
+ int taglen,
+ struct Version_tree*,
+ struct Version_dependency_list*);
+
+extern struct Version_dependency_list*
+script_add_vers_depend(void* closure,
+ struct Version_dependency_list* existing_dependencies,
+ const char* depend_to_add, int deplen);
+
+extern struct Version_expression_list*
+script_new_vers_pattern(void* closure,
+ struct Version_expression_list*,
+ const char*, int, int);
+
+extern struct Version_expression_list*
+script_merge_expressions(struct Version_expression_list* a,
+ struct Version_expression_list* b);
+
+extern struct Version_tree*
+script_new_vers_node(void* closure,
+ struct Version_expression_list* global,
+ struct Version_expression_list* local);
+
+extern void
+version_script_push_lang(void* closure, const char* lang, int langlen);
+
+extern void
+version_script_pop_lang(void* closure);
+
+#ifdef __cplusplus
+} // End extern "C"
+#endif
+