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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) \ | |
24 | dh_ctype(ret) HELPER(name) (void) DEF_HELPER_ATTR; | |
25 | ||
26 | #define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \ | |
27 | dh_ctype(ret) HELPER(name) (dh_ctype(t1)) DEF_HELPER_ATTR; | |
28 | ||
29 | #define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \ | |
30 | dh_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) \ | |
33 | dh_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) \ | |
37 | dh_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) \ | |
41 | dh_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) \ | |
45 | dh_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) \ | |
50 | dh_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 |