1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* 3 * Helper file for declaring TCG helper functions. 4 * This one expands prototypes for the helper functions. 5 * Define HELPER_H for the header file to be expanded. 6 */ 7 8#include "exec/helper-head.h" 9 10/* 11 * Work around an issue with --enable-lto, in which GCC's ipa-split pass 12 * decides to split out the noreturn code paths that raise an exception, 13 * taking the __builtin_return_address() along into the new function, 14 * where it no longer computes a value that returns to TCG generated code. 15 * Despite the name, the noinline attribute affects splitter, so this 16 * prevents the optimization in question. Given that helpers should not 17 * otherwise be called directly, this should not have any other visible effect. 18 * 19 * See https://gitlab.com/qemu-project/qemu/-/issues/1454 20 */ 21#define DEF_HELPER_ATTR __attribute__((noinline)) 22 23#define DEF_HELPER_FLAGS_0(name, flags, ret) \ 24dh_ctype(ret) HELPER(name) (void) DEF_HELPER_ATTR; 25 26#define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \ 27dh_ctype(ret) HELPER(name) (dh_ctype(t1)) DEF_HELPER_ATTR; 28 29#define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \ 30dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2)) DEF_HELPER_ATTR; 31 32#define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \ 33dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), \ 34 dh_ctype(t3)) DEF_HELPER_ATTR; 35 36#define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \ 37dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ 38 dh_ctype(t4)) DEF_HELPER_ATTR; 39 40#define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \ 41dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ 42 dh_ctype(t4), dh_ctype(t5)) DEF_HELPER_ATTR; 43 44#define DEF_HELPER_FLAGS_6(name, flags, ret, t1, t2, t3, t4, t5, t6) \ 45dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ 46 dh_ctype(t4), dh_ctype(t5), \ 47 dh_ctype(t6)) DEF_HELPER_ATTR; 48 49#define DEF_HELPER_FLAGS_7(name, flags, ret, t1, t2, t3, t4, t5, t6, t7) \ 50dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ 51 dh_ctype(t4), dh_ctype(t5), dh_ctype(t6), \ 52 dh_ctype(t7)) DEF_HELPER_ATTR; 53 54#define IN_HELPER_PROTO 55 56#include HELPER_H 57 58#undef IN_HELPER_PROTO 59 60#undef DEF_HELPER_FLAGS_0 61#undef DEF_HELPER_FLAGS_1 62#undef DEF_HELPER_FLAGS_2 63#undef DEF_HELPER_FLAGS_3 64#undef DEF_HELPER_FLAGS_4 65#undef DEF_HELPER_FLAGS_5 66#undef DEF_HELPER_FLAGS_6 67#undef DEF_HELPER_FLAGS_7 68#undef DEF_HELPER_ATTR 69