| 1 | #ifndef MMAN_H |
| 2 | #define MMAN_H |
| 3 | |
| 4 | #ifdef __cplusplus |
| 5 | extern "C" { |
| 6 | #endif |
| 7 | |
| 8 | #include <stdlib.h> |
| 9 | #include <stdio.h> |
| 10 | #include <stdint.h> |
| 11 | #include <malloc.h> |
| 12 | #include <switch.h> |
| 13 | #include <stdlib.h> |
| 14 | |
| 15 | //#include "3ds_utils.h" |
| 16 | |
| 17 | #define PROT_READ 0b001 |
| 18 | #define PROT_WRITE 0b010 |
| 19 | #define PROT_EXEC 0b100 |
| 20 | #define MAP_PRIVATE 2 |
| 21 | #define MAP_FIXED 0x10 |
| 22 | #define MAP_ANONYMOUS 0x20 |
| 23 | |
| 24 | #define MAP_FAILED ((void *)-1) |
| 25 | |
| 26 | static void* dynarec_cache = NULL; |
| 27 | static void* dynarec_cache_mapping = NULL; |
| 28 | |
| 29 | static inline void* mmap(void *addr, size_t len, int prot, int flags, int fd, off_t offset) |
| 30 | { |
| 31 | (void)fd; |
| 32 | (void)offset; |
| 33 | |
| 34 | //void* addr_out; |
| 35 | Result rc = svcMapPhysicalMemory(addr, len); |
| 36 | if (R_FAILED(rc)) |
| 37 | { |
| 38 | printf("mmap failed\n"); |
| 39 | return malloc(len); |
| 40 | } |
| 41 | |
| 42 | return addr; |
| 43 | |
| 44 | // if((prot == (PROT_READ | PROT_WRITE | PROT_EXEC)) && |
| 45 | // (flags == (MAP_PRIVATE | MAP_ANONYMOUS))) |
| 46 | // { |
| 47 | // if(true)// __ctr_svchax) |
| 48 | // { |
| 49 | // /* this hack works only for pcsx_rearmed */ |
| 50 | // uint32_t currentHandle; |
| 51 | // |
| 52 | // if(!dynarec_cache) |
| 53 | // dynarec_cache = memalign(0x1000, len); |
| 54 | // |
| 55 | // //svcDuplicateHandle(¤tHandle, 0xFFFF8001); |
| 56 | // //svcControlProcessMemory(currentHandle, addr, dynarec_cache, |
| 57 | // // len, MEMOP_MAP, prot); |
| 58 | // svcCloseHandle(currentHandle); |
| 59 | // dynarec_cache_mapping = addr; |
| 60 | // return addr; |
| 61 | // } |
| 62 | // else |
| 63 | // { |
| 64 | // printf("tried to mmap RWX pages without svcControlProcessMemory access !\n"); |
| 65 | // return MAP_FAILED; |
| 66 | // } |
| 67 | // |
| 68 | // } |
| 69 | |
| 70 | // addr_out = memalign(0x1000, len); |
| 71 | // if(!addr_out) |
| 72 | // return MAP_FAILED; |
| 73 | // |
| 74 | // return addr_out; |
| 75 | } |
| 76 | |
| 77 | static inline int mprotect(void *addr, size_t len, int prot) |
| 78 | { |
| 79 | return 0; |
| 80 | //if(true) // __ctr_svchax) |
| 81 | //{ |
| 82 | // uint32_t currentHandle; |
| 83 | // //svcDuplicateHandle(¤tHandle, 0xFFFF8001); |
| 84 | // //svcControlProcessMemory(currentHandle, addr, NULL, |
| 85 | // // len, MEMOP_PROT, prot); |
| 86 | // svcCloseHandle(currentHandle); |
| 87 | // return 0; |
| 88 | //} |
| 89 | |
| 90 | //printf("mprotect called without svcControlProcessMemory access !\n"); |
| 91 | //return -1; |
| 92 | } |
| 93 | |
| 94 | static inline int munmap(void *addr, size_t len) |
| 95 | { |
| 96 | Result rc = svcUnmapPhysicalMemory(addr, len); |
| 97 | if (R_FAILED(rc)) |
| 98 | { |
| 99 | printf("munmap failed\n"); |
| 100 | free(addr); |
| 101 | } |
| 102 | return 0; |
| 103 | // if((addr == dynarec_cache_mapping) && true)//__ctr_svchax) |
| 104 | // { |
| 105 | // uint32_t currentHandle; |
| 106 | // //svcDuplicateHandle(¤tHandle, 0xFFFF8001); |
| 107 | // //svcControlProcessMemory(currentHandle, |
| 108 | // // dynarec_cache, dynarec_cache_mapping, |
| 109 | // // len, MEMOP_UNMAP, 0b111); |
| 110 | // svcCloseHandle(currentHandle); |
| 111 | // dynarec_cache_mapping = NULL; |
| 112 | // |
| 113 | // } |
| 114 | // else |
| 115 | free(addr); |
| 116 | |
| 117 | return 0; |
| 118 | } |
| 119 | |
| 120 | #ifdef __cplusplus |
| 121 | }; |
| 122 | #endif |
| 123 | |
| 124 | #endif // MMAN_H |
| 125 | |