1 /* Helper file for declaring TCG helper functions. 2 This one expands prototypes for the helper functions. */ 3 4 #ifndef HELPER_PROTO_H 5 #define HELPER_PROTO_H 6 7 #include "exec/helper-head.h" 8 9 /* 10 * Work around an issue with --enable-lto, in which GCC's ipa-split pass 11 * decides to split out the noreturn code paths that raise an exception, 12 * taking the __builtin_return_address() along into the new function, 13 * where it no longer computes a value that returns to TCG generated code. 14 * Despite the name, the noinline attribute affects splitter, so this 15 * prevents the optimization in question. Given that helpers should not 16 * otherwise be called directly, this should have any other visible effect. 17 * 18 * See https://gitlab.com/qemu-project/qemu/-/issues/1454 19 */ 20 #define DEF_HELPER_ATTR __attribute__((noinline)) 21 22 #define DEF_HELPER_FLAGS_0(name, flags, ret) \ 23 dh_ctype(ret) HELPER(name) (void) DEF_HELPER_ATTR; 24 25 #define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \ 26 dh_ctype(ret) HELPER(name) (dh_ctype(t1)) DEF_HELPER_ATTR; 27 28 #define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \ 29 dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2)) DEF_HELPER_ATTR; 30 31 #define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \ 32 dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), \ 33 dh_ctype(t3)) DEF_HELPER_ATTR; 34 35 #define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \ 36 dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ 37 dh_ctype(t4)) DEF_HELPER_ATTR; 38 39 #define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \ 40 dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ 41 dh_ctype(t4), dh_ctype(t5)) DEF_HELPER_ATTR; 42 43 #define DEF_HELPER_FLAGS_6(name, flags, ret, t1, t2, t3, t4, t5, t6) \ 44 dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ 45 dh_ctype(t4), dh_ctype(t5), \ 46 dh_ctype(t6)) DEF_HELPER_ATTR; 47 48 #define DEF_HELPER_FLAGS_7(name, flags, ret, t1, t2, t3, t4, t5, t6, t7) \ 49 dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ 50 dh_ctype(t4), dh_ctype(t5), dh_ctype(t6), \ 51 dh_ctype(t7)) DEF_HELPER_ATTR; 52 53 #define IN_HELPER_PROTO 54 55 #include "helper.h" 56 #include "accel/tcg/tcg-runtime.h" 57 #include "accel/tcg/plugin-helpers.h" 58 59 #undef IN_HELPER_PROTO 60 61 #undef DEF_HELPER_FLAGS_0 62 #undef DEF_HELPER_FLAGS_1 63 #undef DEF_HELPER_FLAGS_2 64 #undef DEF_HELPER_FLAGS_3 65 #undef DEF_HELPER_FLAGS_4 66 #undef DEF_HELPER_FLAGS_5 67 #undef DEF_HELPER_FLAGS_6 68 #undef DEF_HELPER_FLAGS_7 69 #undef DEF_HELPER_ATTR 70 71 #endif /* HELPER_PROTO_H */ 72