diff options
Diffstat (limited to 'contrib/SDL-3.2.8/src/loadso/dlopen/SDL_sysloadso.c')
| -rw-r--r-- | contrib/SDL-3.2.8/src/loadso/dlopen/SDL_sysloadso.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/contrib/SDL-3.2.8/src/loadso/dlopen/SDL_sysloadso.c b/contrib/SDL-3.2.8/src/loadso/dlopen/SDL_sysloadso.c new file mode 100644 index 0000000..c84d1a1 --- /dev/null +++ b/contrib/SDL-3.2.8/src/loadso/dlopen/SDL_sysloadso.c | |||
| @@ -0,0 +1,82 @@ | |||
| 1 | /* | ||
| 2 | Simple DirectMedia Layer | ||
| 3 | Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org> | ||
| 4 | |||
| 5 | This software is provided 'as-is', without any express or implied | ||
| 6 | warranty. In no event will the authors be held liable for any damages | ||
| 7 | arising from the use of this software. | ||
| 8 | |||
| 9 | Permission is granted to anyone to use this software for any purpose, | ||
| 10 | including commercial applications, and to alter it and redistribute it | ||
| 11 | freely, subject to the following restrictions: | ||
| 12 | |||
| 13 | 1. The origin of this software must not be misrepresented; you must not | ||
| 14 | claim that you wrote the original software. If you use this software | ||
| 15 | in a product, an acknowledgment in the product documentation would be | ||
| 16 | appreciated but is not required. | ||
| 17 | 2. Altered source versions must be plainly marked as such, and must not be | ||
| 18 | misrepresented as being the original software. | ||
| 19 | 3. This notice may not be removed or altered from any source distribution. | ||
| 20 | */ | ||
| 21 | #include "SDL_internal.h" | ||
| 22 | |||
| 23 | #ifdef SDL_LOADSO_DLOPEN | ||
| 24 | |||
| 25 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ | ||
| 26 | // System dependent library loading routines | ||
| 27 | |||
| 28 | #include <stdio.h> | ||
| 29 | #include <dlfcn.h> | ||
| 30 | |||
| 31 | #ifdef SDL_VIDEO_DRIVER_UIKIT | ||
| 32 | #include "../../video/uikit/SDL_uikitvideo.h" | ||
| 33 | #endif | ||
| 34 | |||
| 35 | SDL_SharedObject *SDL_LoadObject(const char *sofile) | ||
| 36 | { | ||
| 37 | void *handle; | ||
| 38 | const char *loaderror; | ||
| 39 | |||
| 40 | #ifdef SDL_VIDEO_DRIVER_UIKIT | ||
| 41 | if (!UIKit_IsSystemVersionAtLeast(8.0)) { | ||
| 42 | SDL_SetError("SDL_LoadObject requires iOS 8+"); | ||
| 43 | return NULL; | ||
| 44 | } | ||
| 45 | #endif | ||
| 46 | |||
| 47 | handle = dlopen(sofile, RTLD_NOW | RTLD_LOCAL); | ||
| 48 | loaderror = dlerror(); | ||
| 49 | if (!handle) { | ||
| 50 | SDL_SetError("Failed loading %s: %s", sofile, loaderror); | ||
| 51 | } | ||
| 52 | return (SDL_SharedObject *) handle; | ||
| 53 | } | ||
| 54 | |||
| 55 | SDL_FunctionPointer SDL_LoadFunction(SDL_SharedObject *handle, const char *name) | ||
| 56 | { | ||
| 57 | void *symbol = dlsym(handle, name); | ||
| 58 | if (!symbol) { | ||
| 59 | // prepend an underscore for platforms that need that. | ||
| 60 | bool isstack; | ||
| 61 | size_t len = SDL_strlen(name) + 1; | ||
| 62 | char *_name = SDL_small_alloc(char, len + 1, &isstack); | ||
| 63 | _name[0] = '_'; | ||
| 64 | SDL_memcpy(&_name[1], name, len); | ||
| 65 | symbol = dlsym(handle, _name); | ||
| 66 | SDL_small_free(_name, isstack); | ||
| 67 | if (!symbol) { | ||
| 68 | SDL_SetError("Failed loading %s: %s", name, | ||
| 69 | (const char *)dlerror()); | ||
| 70 | } | ||
| 71 | } | ||
| 72 | return symbol; | ||
| 73 | } | ||
| 74 | |||
| 75 | void SDL_UnloadObject(SDL_SharedObject *handle) | ||
| 76 | { | ||
| 77 | if (handle) { | ||
| 78 | dlclose(handle); | ||
| 79 | } | ||
| 80 | } | ||
| 81 | |||
| 82 | #endif // SDL_LOADSO_DLOPEN | ||
