notaz.gp2x.de / pcsx_rearmed.git / blame
| Commit | Line | Data |
|---|---|---|
| 79bfeef6 PC |
1 | /* |
| 2 | * Simple test for x86_64 rip relative access that can also be useful | |
| 3 | * on other ports when data is close to instruction pointer. | |
| 4 | */ | |
| 5 | ||
| 6 | #include <lightning.h> | |
| 7 | #include <stdio.h> | |
| 8 | #include <assert.h> | |
| 9 | #include <sys/mman.h> | |
| 10 | #if defined(__sgi) | |
| 11 | # include <fcntl.h> | |
| 12 | #endif | |
| 13 | #include <unistd.h> | |
| 14 | ||
| 15 | #ifndef MAP_ANON | |
| 16 | # define MAP_ANON MAP_ANONYMOUS | |
| 17 | # ifndef MAP_ANONYMOUS | |
| 18 | # define MAP_ANONYMOUS 0 | |
| 19 | # endif | |
| 20 | #endif | |
| 21 | ||
| 22 | #if !defined(__sgi) | |
| 23 | #define mmap_fd -1 | |
| 24 | #endif | |
| 25 | ||
| 26 | int | |
| 27 | main(int argc, char *argv[]) | |
| 28 | { | |
| 29 | jit_uint8_t *ptr; | |
| 30 | jit_state_t *_jit; | |
| 31 | jit_word_t length; | |
| 32 | #if defined(__sgi) | |
| 33 | int mmap_fd; | |
| 34 | #endif | |
| 35 | void (*function)(void); | |
| 36 | int mmap_prot, mmap_flags, result, pagesize; | |
| 37 | int mult; | |
| 38 | ||
| 39 | #if defined(__ia64__) | |
| 40 | mult = 8; | |
| 41 | #else | |
| 42 | mult = 2; | |
| 43 | #endif | |
| 44 | pagesize = sysconf(_SC_PAGESIZE); | |
| 45 | if (pagesize < 4096) | |
| 46 | pagesize = 4096; | |
| 47 | ||
| 48 | #if defined(__sgi) | |
| 49 | mmap_fd = open("/dev/zero", O_RDWR); | |
| 50 | #endif | |
| 51 | ||
| 52 | mmap_prot = PROT_READ | PROT_WRITE; | |
| 53 | #if !(__OpenBSD__ || __APPLE__) | |
| 54 | mmap_prot |= PROT_EXEC; | |
| 55 | #endif | |
| 56 | #if __NetBSD__ | |
| 57 | mmap_prot = PROT_MPROTECT(mmap_prot); | |
| 58 | mmap_flags = 0; | |
| 59 | #else | |
| 60 | mmap_flags = MAP_PRIVATE; | |
| 61 | #endif | |
| 62 | mmap_flags |= MAP_ANON; | |
| 63 | ptr = mmap(NULL, pagesize * mult, mmap_prot, mmap_flags, mmap_fd, 0); | |
| 64 | assert(ptr != MAP_FAILED); | |
| 65 | #if defined(__sgi) | |
| 66 | close(mmap_fd); | |
| 67 | #endif | |
| 68 | ||
| 69 | init_jit(argv[0]); | |
| 70 | _jit = jit_new_state(); | |
| 71 | ||
| 72 | jit_prolog(); | |
| 73 | jit_movi(JIT_R0, 'c'); | |
| 74 | jit_sti_c(ptr + 0, JIT_R0); | |
| 75 | jit_movi(JIT_R0, 'C'); | |
| 76 | jit_sti_c(ptr + 1, JIT_R0); | |
| 77 | ||
| 78 | jit_movi(JIT_R0, 's'); | |
| 79 | jit_sti_s(ptr + 2, JIT_R0); | |
| 80 | jit_movi(JIT_R0, 'S'); | |
| 81 | jit_sti_s(ptr + 4, JIT_R0); | |
| 82 | ||
| 83 | jit_movi(JIT_R0, 'i'); | |
| 84 | jit_sti_i(ptr + 8, JIT_R0); | |
| 85 | #if __WORDSIZE == 64 | |
| 86 | jit_movi(JIT_R0, 'I'); | |
| 87 | jit_sti_i(ptr + 12, JIT_R0); | |
| 88 | ||
| 89 | jit_movi(JIT_R0, 'l'); | |
| 90 | jit_sti_l(ptr + 16, JIT_R0); | |
| 91 | #endif | |
| 92 | jit_movi_f(JIT_F0, 1.0); | |
| 93 | jit_sti_f(ptr + 24, JIT_F0); | |
| 94 | jit_movi_d(JIT_F0, 2.0); | |
| 95 | jit_sti_d(ptr + 32, JIT_F0); | |
| 96 | ||
| 97 | jit_ldi_c(JIT_R0, ptr + 0); | |
| 98 | jit_ldi_s(JIT_R1, ptr + 2); | |
| 99 | jit_ldi_i(JIT_R2, ptr + 8); | |
| 100 | #if __WORDSIZE == 64 | |
| 101 | jit_ldi_l(JIT_V0, ptr + 16); | |
| 102 | #endif | |
| 103 | jit_prepare(); | |
| 104 | #if __WORDSIZE == 64 | |
| 105 | jit_pushargi((jit_word_t)"%c %c %c %c\n"); | |
| 106 | #else | |
| 107 | jit_pushargi((jit_word_t)"%c %c %c l\n"); | |
| 108 | #endif | |
| 109 | jit_ellipsis(); | |
| 110 | jit_pushargr(JIT_R0); | |
| 111 | jit_pushargr(JIT_R1); | |
| 112 | jit_pushargr(JIT_R2); | |
| 113 | #if __WORDSIZE == 64 | |
| 114 | jit_pushargr(JIT_V0); | |
| 115 | #endif | |
| 116 | jit_finishi(printf); | |
| 117 | ||
| 118 | jit_ldi_uc(JIT_R0, ptr + 1); | |
| 119 | jit_ldi_us(JIT_R1, ptr + 4); | |
| 120 | #if __WORDSIZE == 64 | |
| 121 | jit_ldi_ui(JIT_R2, ptr + 12); | |
| 122 | #endif | |
| 123 | jit_prepare(); | |
| 124 | #if __WORDSIZE == 64 | |
| 125 | jit_pushargi((jit_word_t)"%c %c %c\n"); | |
| 126 | #else | |
| 127 | jit_pushargi((jit_word_t)"%c %c I\n"); | |
| 128 | #endif | |
| 129 | jit_ellipsis(); | |
| 130 | jit_pushargr(JIT_R0); | |
| 131 | jit_pushargr(JIT_R1); | |
| 132 | #if __WORDSIZE == 64 | |
| 133 | jit_pushargr(JIT_R2); | |
| 134 | #endif | |
| 135 | jit_finishi(printf); | |
| 136 | ||
| 137 | jit_ldi_f(JIT_F0, ptr + 24); | |
| 138 | jit_extr_f_d(JIT_F0, JIT_F0); | |
| 139 | jit_ldi_d(JIT_F1, ptr + 32); | |
| 140 | ||
| 141 | jit_prepare(); | |
| 142 | jit_pushargi((jit_word_t)"%.1f %.1f\n"); | |
| 143 | jit_ellipsis(); | |
| 144 | jit_pushargr_d(JIT_F0); | |
| 145 | jit_pushargr_d(JIT_F1); | |
| 146 | jit_finishi(printf); | |
| 147 | ||
| 148 | jit_realize(); | |
| 149 | ||
| 150 | jit_set_code(ptr + pagesize, pagesize * (mult - 1)); | |
| 151 | ||
| 152 | #if __NetBSD__ || __OpenBSD__ || __APPLE__ | |
| 153 | result = mprotect(ptr, pagesize, PROT_READ | PROT_WRITE); | |
| 154 | assert(result == 0); | |
| 155 | #endif | |
| 156 | function = jit_emit(); | |
| 157 | if (function == NULL) | |
| 158 | abort(); | |
| 159 | ||
| 160 | //jit_disassemble(); | |
| 161 | jit_clear_state(); | |
| 162 | #if __NetBSD__ || __OpenBSD__ || __APPLE__ | |
| 163 | result = mprotect(ptr + pagesize, pagesize, PROT_READ | PROT_EXEC); | |
| 164 | assert(result == 0); | |
| 165 | #endif | |
| 166 | (*function)(); | |
| 167 | jit_destroy_state(); | |
| 168 | finish_jit(); | |
| 169 | ||
| 170 | munmap(ptr, pagesize * mult); | |
| 171 | ||
| 172 | return (0); | |
| 173 | } |