| /* Helper file for declaring TCG helper functions. |
| Should be included at the start and end of target-foo/helper.h. |
| |
| 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 */ |
| |
| #ifndef GEN_HELPER |
| /* Function prototypes. */ |
| |
| #define DEF_HELPER_FLAGS_0(name, flags, ret) \ |
| dh_ctype(ret) HELPER(name) (void); |
| |
| #define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \ |
| dh_ctype(ret) HELPER(name) (dh_ctype(t1)); |
| |
| #define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \ |
| dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2)); |
| |
| #define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \ |
| dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3)); |
| |
| #define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \ |
| dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ |
| dh_ctype(t4)); |
| |
| #define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \ |
| dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ |
| dh_ctype(t4), dh_ctype(t5)); |
| |
| #undef GEN_HELPER |
| #define GEN_HELPER -1 |
| |
| #elif GEN_HELPER == 1 |
| /* Gen functions. */ |
| |
| #define DEF_HELPER_FLAGS_0(name, flags, ret) \ |
| static inline void glue(gen_helper_, name)(dh_retvar_decl0(ret)) \ |
| { \ |
| int sizemask; \ |
| sizemask = dh_is_64bit(ret); \ |
| tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 0, NULL); \ |
| } |
| |
| #define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \ |
| static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) dh_arg_decl(t1, 1)) \ |
| { \ |
| TCGArg args[1]; \ |
| int sizemask = 0; \ |
| dh_sizemask(ret, 0); \ |
| dh_arg(t1, 1); \ |
| tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 1, args); \ |
| } |
| |
| #define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \ |
| static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) dh_arg_decl(t1, 1), \ |
| dh_arg_decl(t2, 2)) \ |
| { \ |
| TCGArg args[2]; \ |
| int sizemask = 0; \ |
| dh_sizemask(ret, 0); \ |
| dh_arg(t1, 1); \ |
| dh_arg(t2, 2); \ |
| tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 2, args); \ |
| } |
| |
| #define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \ |
| static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) dh_arg_decl(t1, 1), \ |
| dh_arg_decl(t2, 2), dh_arg_decl(t3, 3)) \ |
| { \ |
| TCGArg args[3]; \ |
| int sizemask = 0; \ |
| dh_sizemask(ret, 0); \ |
| dh_arg(t1, 1); \ |
| dh_arg(t2, 2); \ |
| dh_arg(t3, 3); \ |
| tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 3, args); \ |
| } |
| |
| #define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \ |
| static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) dh_arg_decl(t1, 1), \ |
| dh_arg_decl(t2, 2), dh_arg_decl(t3, 3), dh_arg_decl(t4, 4)) \ |
| { \ |
| TCGArg args[4]; \ |
| int sizemask = 0; \ |
| dh_sizemask(ret, 0); \ |
| dh_arg(t1, 1); \ |
| dh_arg(t2, 2); \ |
| dh_arg(t3, 3); \ |
| dh_arg(t4, 4); \ |
| tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 4, args); \ |
| } |
| |
| #define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \ |
| static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) \ |
| dh_arg_decl(t1, 1), dh_arg_decl(t2, 2), dh_arg_decl(t3, 3), \ |
| dh_arg_decl(t4, 4), dh_arg_decl(t5, 5)) \ |
| { \ |
| TCGArg args[5]; \ |
| int sizemask = 0; \ |
| dh_sizemask(ret, 0); \ |
| dh_arg(t1, 1); \ |
| dh_arg(t2, 2); \ |
| dh_arg(t3, 3); \ |
| dh_arg(t4, 4); \ |
| dh_arg(t5, 5); \ |
| tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 5, args); \ |
| } |
| |
| #undef GEN_HELPER |
| #define GEN_HELPER -1 |
| |
| #elif GEN_HELPER == 2 |
| /* Register helpers. */ |
| |
| #define DEF_HELPER_FLAGS_0(name, flags, ret) { HELPER(name), #name }, |
| |
| #define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \ |
| DEF_HELPER_FLAGS_0(name, flags, ret) |
| |
| #define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \ |
| DEF_HELPER_FLAGS_0(name, flags, ret) |
| |
| #define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \ |
| DEF_HELPER_FLAGS_0(name, flags, ret) |
| |
| #define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \ |
| DEF_HELPER_FLAGS_0(name, flags, ret) |
| |
| #define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \ |
| DEF_HELPER_FLAGS_0(name, flags, ret) |
| |
| #undef GEN_HELPER |
| #define GEN_HELPER -1 |
| |
| #elif GEN_HELPER == -1 |
| /* Undefine macros. */ |
| |
| #undef DEF_HELPER_FLAGS_0 |
| #undef DEF_HELPER_FLAGS_1 |
| #undef DEF_HELPER_FLAGS_2 |
| #undef DEF_HELPER_FLAGS_3 |
| #undef DEF_HELPER_FLAGS_4 |
| #undef DEF_HELPER_FLAGS_5 |
| #undef GEN_HELPER |
| |
| #endif |