#ifndef RUBY_EVAL_INTERN_H #define RUBY_EVAL_INTERN_H #include "ruby/ruby.h" #include "vm_core.h" static inline void vm_passed_block_handler_set(rb_execution_context_t *ec, VALUE block_handler) { vm_block_handler_verify(block_handler); ec->passed_block_handler = block_handler; } static inline void pass_passed_block_handler(rb_execution_context_t *ec) { VALUE block_handler = rb_vm_frame_block_handler(ec->cfp); vm_passed_block_handler_set(ec, block_handler); VM_ENV_FLAGS_SET(ec->cfp->ep, VM_FRAME_FLAG_PASSED); } #define PASS_PASSED_BLOCK_HANDLER_EC(ec) pass_passed_block_handler(ec) #define PASS_PASSED_BLOCK_HANDLER() pass_passed_block_handler(GET_EC()) #ifdef HAVE_STDLIB_H #include #endif #ifndef EXIT_SUCCESS #define EXIT_SUCCESS 0 #endif #ifndef EXIT_FAILURE #define EXIT_FAILURE 1 #endif #include #include #ifdef __APPLE__ # ifdef HAVE_CRT_EXTERNS_H # include # else # include "missing/crt_externs.h" # endif #endif #ifndef HAVE_STRING_H char *strrchr(const char *, const char); #endif #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_NET_SOCKET_H #include #endif #define ruby_setjmp(env) RUBY_SETJMP(env) #define ruby_longjmp(env,val) RUBY_LONGJMP((env),(val)) #ifdef __CYGWIN__ # ifndef _setjmp int _setjmp(jmp_buf); # endif # ifndef _longjmp NORETURN(void _longjmp(jmp_buf, int)); # endif #endif #include #include #include #ifdef HAVE_SYS_SELECT_H #include #endif /* Solaris sys/select.h switches select to select_large_fdset to support larger file descriptors if FD_SETSIZE is larger than 1024 on 32bit environment. But Ruby doesn't change FD_SETSIZE because fd_set is allocated dynamically. So following definition is required to use select_large_fdset. */ #ifdef HAVE_SELECT_LARGE_FDSET #define select(n, r, w, e, t) select_large_fdset((n), (r), (w), (e), (t)) extern int select_large_fdset(int, fd_set *, fd_set *, fd_set *, struct timeval *); #endif #ifdef HAVE_SYS_PARAM_H #include #endif #include #ifdef _MSC_VER #define SAVE_ROOT_JMPBUF_BEFORE_STMT \ __try { #define SAVE_ROOT_JMPBUF_AFTER_STMT \ } \ __except (GetExceptionCode() == EXCEPTION_STACK_OVERFLOW ? \ (rb_ec_raised_set(GET_EC(), RAISED_STACKOVERFLOW), \ raise(SIGSEGV), \ EXCEPTION_EXECUTE_HANDLER) : \ EXCEPTION_CONTINUE_SEARCH) { \ /* never reaches here */ \ } #elif defined(__MINGW32__) LONG WINAPI rb_w32_stack_overflow_handler(struct _EXCEPTION_POINTERS *); #define SAVE_ROOT_JMPBUF_BEFORE_STMT \ do { \ PVOID _handler = AddVectoredExceptionHandler(1, rb_w32_stack_overflow_handler); #define SAVE_ROOT_JMPBUF_AFTER_STMT \ RemoveVectoredExceptionHandler(_handler); \ } while (0); #else #define SAVE_ROOT_JMPBUF_BEFORE_STMT #define SAVE_ROOT_JMPBUF_AFTER_STMT #endif #define SAVE_ROOT_JMPBUF(th, stmt) do \ if (ruby_setjmp((th)->root_jmpbuf) == 0) { \ SAVE_ROOT_JMPBUF_BEFORE_STMT \ stmt; \ SAVE_ROOT_JMPBUF_AFTER_STMT \ } \ else { \ rb_fiber_start(); \ } while (0) #define EC_PUSH_TAG(ec) do { \ rb_execution_context_t * const _ec = (ec); \ struct rb_vm_tag _tag; \ _tag.state = TAG_NONE; \ _tag.tag = Qundef; \ _tag.prev = _ec->tag; \ _tag.lock_rec = rb_ec_vm_lock_rec(_ec); \ #define EC_POP_TAG() \ _ec->tag = _tag.prev; \ } while (0) #define EC_TMPPOP_TAG() \ _ec->tag = _tag.prev #define EC_REPUSH_TAG() (void)(_ec->tag = &_tag) #if defined __GNUC__ && __GNUC__ == 4 && (__GNUC_MINOR__ >= 6 && __GNUC_MINOR__ <= 8) || __clang__ /* This macro prevents GCC 4.6--4.8 from emitting maybe-uninitialized warnings. * This macro also prevents Clang from dumping core in EC_EXEC_TAG(). * (I confirmed Clang 4.0.1 and 5.0.0.) */ # define VAR_FROM_MEMORY(var) __extension__(*(__typeof__(var) volatile *)&(var)) # define VAR_INITIALIZED(var) ((var) = VAR_FROM_MEMORY(var)) # define VAR_NOCLOBBERED(var) volatile var #else # define VAR_FROM_MEMORY(var) (var) # define VAR_INITIALIZED(var) ((void)&(var)) # define VAR_NOCLOBBERED(var) var #endif static inline void rb_ec_vm_lock_rec_check(const rb_execution_context_t *ec, unsigned int recorded_lock_rec) { unsigned int current_lock_rec = rb_ec_vm_lock_rec(ec); if (current_lock_rec != recorded_lock_rec) { rb_ec_vm_lock_rec_release(ec, recorded_lock_rec, current_lock_rec); } } /* clear ec->tag->state, and return the value */ static inline int rb_ec_tag_state(const rb_execution_context_t *ec) { struct rb_vm_tag *tag = ec->tag; enum ruby_tag_type state = tag->state; tag->state = TAG_NONE; rb_ec_vm_lock_rec_check(ec, tag->lock_rec); return state; } NORETURN(static inline void rb_ec_tag_jump(const rb_execution_context_t *ec, enum ruby_tag_type st)); static inline void rb_ec_tag_jump(const rb_execution_context_t *ec, enum ruby_tag_type st) { ec->tag->state = st; ruby_longjmp(ec->tag->buf, 1); } /* setjmp() in assignment expression rhs is undefined behavior [ISO/IEC 9899:1999] 7.13.1.1 */ #define EC_EXEC_TAG() \ (ruby_setjmp(_tag.buf) ? rb_ec_tag_state(VAR_FROM_MEMORY(_ec)) : (EC_REPUSH_TAG(), 0)) #define EC_JUMP_TAG(ec, st) rb_ec_tag_jump(ec, st) #define INTERNAL_EXCEPTION_P(exc) FIXNUM_P(exc) /* CREF operators */ #define CREF_FL_PUSHED_BY_EVAL IMEMO_FL_USER1 #define CREF_FL_OMOD_SHARED IMEMO_FL_USER2 static inline VALUE CREF_CLASS(const rb_cref_t *cref) { return cref->klass; } static inline rb_cref_t * CREF_NEXT(const rb_cref_t *cref) { return cref->next; } static inline const rb_scope_visibility_t * CREF_SCOPE_VISI(const rb_cref_t *cref) { return &cref->scope_visi; } static inline VALUE CREF_REFINEMENTS(const rb_cref_t *cref) { return cref->refinements; } static inline void CREF_REFINEMENTS_SET(rb_cref_t *cref, VALUE refs) { RB_OBJ_WRITE(cref, &cref->refinements, refs); } static inline int CREF_PUSHED_BY_EVAL(const rb_cref_t *cref) { return cref->flags & CREF_FL_PUSHED_BY_EVAL; } static inline void CREF_PUSHED_BY_EVAL_SET(rb_cref_t *cref) { cref->flags |= CREF_FL_PUSHED_BY_EVAL; } static inline int CREF_OMOD_SHARED(const rb_cref_t *cref) { return cref->flags & CREF_FL_OMOD_SHARED; } static inline void CREF_OMOD_SHARED_SET(rb_cref_t *cref) { cref->flags |= CREF_FL_OMOD_SHARED; } static inline void CREF_OMOD_SHARED_UNSET(rb_cref_t *cref) { cref->flags &= ~CREF_FL_OMOD_SHARED; } enum { RAISED_EXCEPTION = 1, RAISED_STACKOVERFLOW = 2, RAISED_NOMEMORY = 4 }; #define rb_ec_raised_set(ec, f) ((ec)->raised_flag |= (f)) #define rb_ec_raised_reset(ec, f) ((ec)->raised_flag &= ~(f)) #define rb_ec_raised_p(ec, f) (((ec)->raised_flag & (f)) != 0) #define rb_ec_raised_clear(ec) ((ec)->raised_flag = 0) int rb_ec_set_raised(rb_execution_context_t *ec); int rb_ec_reset_raised(rb_execution_context_t *ec); int rb_ec_stack_check(rb_execution_context_t *ec); VALUE rb_f_eval(int argc, const VALUE *argv, VALUE self); VALUE rb_make_exception(int argc, const VALUE *argv); NORETURN(void rb_method_name_error(VALUE, VALUE)); NORETURN(void rb_fiber_start(void)); NORETURN(void rb_print_undef(VALUE, ID, rb_method_visibility_t)); NORETURN(void rb_print_undef_str(VALUE, VALUE)); NORETURN(void rb_print_inaccessible(VALUE, ID, rb_method_visibility_t)); NORETURN(void rb_vm_localjump_error(const char *,VALUE, int)); NORETURN(void rb_vm_jump_tag_but_local_jump(int)); VALUE rb_vm_make_jump_tag_but_local_jump(int state, VALUE val); rb_cref_t *rb_vm_cref(void); rb_cref_t *rb_vm_cref_replace_with_duplicated_cref(void); VALUE rb_vm_call_cfunc(VALUE recv, VALUE (*func)(VALUE), VALUE arg, VALUE block_handler, VALUE filename); void rb_vm_set_progname(VALUE filename); void rb_thread_terminate_all(void); VALUE rb_vm_cbase(void); /* vm_backtrace.c */ VALUE rb_ec_backtrace_object(const rb_execution_context_t *ec); VALUE rb_ec_backtrace_str_ary(const rb_execution_context_t *ec, long lev, long n); VALUE rb_ec_backtrace_location_ary(const rb_execution_context_t *ec, long lev, long n); #ifndef CharNext /* defined as CharNext[AW] on Windows. */ # ifdef HAVE_MBLEN # define CharNext(p) ((p) + mblen((p), RUBY_MBCHAR_MAXSIZE)) # else # define CharNext(p) ((p) + 1) # endif #endif #if defined DOSISH || defined __CYGWIN__ static inline void translit_char(char *p, int from, int to) { while (*p) { if ((unsigned char)*p == from) *p = to; p = CharNext(p); } } #endif #endif /* RUBY_EVAL_INTERN_H */