/* Helper file for declaring TCG helper functions. Used by other helper files. Targets should use DEF_HELPER_N and DEF_HELPER_FLAGS_N to declare helper functions. Names should be specified without the helper_ prefix, and the return and argument types specified. 3 basic types are understood (i32, i64 and ptr). Additional aliases are provided for convenience and to match the types used by the C helper implementation. The target helper.h should be included in all files that use/define helper functions. THis will ensure that function prototypes are consistent. In addition it should be included an extra two times for helper.c, defining: GEN_HELPER 1 to produce op generation functions (gen_helper_*) GEN_HELPER 2 to do runtime registration helper functions. */ #ifndef DEF_HELPER_H #define DEF_HELPER_H 1 #define HELPER(name) glue(helper_, name) #define GET_TCGV_i32 GET_TCGV_I32 #define GET_TCGV_i64 GET_TCGV_I64 #define GET_TCGV_ptr GET_TCGV_PTR /* Some types that make sense in C, but not for TCG. */ #define dh_alias_i32 i32 #define dh_alias_s32 i32 #define dh_alias_int i32 #define dh_alias_i64 i64 #define dh_alias_s64 i64 #define dh_alias_f32 i32 #define dh_alias_f64 i64 #if TARGET_LONG_BITS == 32 #define dh_alias_tl i32 #else #define dh_alias_tl i64 #endif #define dh_alias_ptr ptr #define dh_alias_void void #define dh_alias_noreturn noreturn #define dh_alias_env ptr #define dh_alias(t) glue(dh_alias_, t) #define dh_ctype_i32 uint32_t #define dh_ctype_s32 int32_t #define dh_ctype_int int #define dh_ctype_i64 uint64_t #define dh_ctype_s64 int64_t #define dh_ctype_f32 float32 #define dh_ctype_f64 float64 #define dh_ctype_tl target_ulong #define dh_ctype_ptr void * #define dh_ctype_void void #define dh_ctype_noreturn void QEMU_NORETURN #define dh_ctype_env CPUArchState * #define dh_ctype(t) dh_ctype_##t /* We can't use glue() here because it falls foul of C preprocessor recursive expansion rules. */ #define dh_retvar_decl0_void void #define dh_retvar_decl0_noreturn void #define dh_retvar_decl0_i32 TCGv_i32 retval #define dh_retvar_decl0_i64 TCGv_i64 retval #define dh_retvar_decl0_ptr TCGv_ptr retval #define dh_retvar_decl0(t) glue(dh_retvar_decl0_, dh_alias(t)) #define dh_retvar_decl_void #define dh_retvar_decl_noreturn #define dh_retvar_decl_i32 TCGv_i32 retval, #define dh_retvar_decl_i64 TCGv_i64 retval, #define dh_retvar_decl_ptr TCGv_ptr retval, #define dh_retvar_decl(t) glue(dh_retvar_decl_, dh_alias(t)) #define dh_retvar_void TCG_CALL_DUMMY_ARG #define dh_retvar_noreturn TCG_CALL_DUMMY_ARG #define dh_retvar_i32 GET_TCGV_i32(retval) #define dh_retvar_i64 GET_TCGV_i64(retval) #define dh_retvar_ptr GET_TCGV_ptr(retval) #define dh_retvar(t) glue(dh_retvar_, dh_alias(t)) #define dh_is_64bit_void 0 #define dh_is_64bit_noreturn 0 #define dh_is_64bit_i32 0 #define dh_is_64bit_i64 1 #define dh_is_64bit_ptr (sizeof(void *) == 8) #define dh_is_64bit(t) glue(dh_is_64bit_, dh_alias(t)) #define dh_is_signed_void 0 #define dh_is_signed_noreturn 0 #define dh_is_signed_i32 0 #define dh_is_signed_s32 1 #define dh_is_signed_i64 0 #define dh_is_signed_s64 1 #define dh_is_signed_f32 0 #define dh_is_signed_f64 0 #define dh_is_signed_tl 0 #define dh_is_signed_int 1 /* ??? This is highly specific to the host cpu. There are even special extension instructions that may be required, e.g. ia64's addp4. But for now we don't support any 64-bit targets with 32-bit pointers. */ #define dh_is_signed_ptr 0 #define dh_is_signed_env dh_is_signed_ptr #define dh_is_signed(t) dh_is_signed_##t #define dh_sizemask(t, n) \ sizemask |= dh_is_64bit(t) << (n*2); \ sizemask |= dh_is_signed(t) << (n*2+1) #define dh_arg(t, n) \ args[n - 1] = glue(GET_TCGV_, dh_alias(t))(glue(arg, n)); \ dh_sizemask(t, n) #define dh_arg_decl(t, n) glue(TCGv_, dh_alias(t)) glue(arg, n) #define DEF_HELPER_0(name, ret) \ DEF_HELPER_FLAGS_0(name, 0, ret) #define DEF_HELPER_1(name, ret, t1) \ DEF_HELPER_FLAGS_1(name, 0, ret, t1) #define DEF_HELPER_2(name, ret, t1, t2) \ DEF_HELPER_FLAGS_2(name, 0, ret, t1, t2) #define DEF_HELPER_3(name, ret, t1, t2, t3) \ DEF_HELPER_FLAGS_3(name, 0, ret, t1, t2, t3) #define DEF_HELPER_4(name, ret, t1, t2, t3, t4) \ DEF_HELPER_FLAGS_4(name, 0, ret, t1, t2, t3, t4) #define DEF_HELPER_5(name, ret, t1, t2, t3, t4, t5) \ DEF_HELPER_FLAGS_5(name, 0, ret, t1, t2, t3, t4, t5) /* MAX_OPC_PARAM_IARGS must be set to n if last entry is DEF_HELPER_FLAGS_n. */ #endif /* DEF_HELPER_H */