diff options
| -rw-r--r-- | dlfcn.c | 8 | ||||
| -rw-r--r-- | dlfcn.h | 29 |
2 files changed, 26 insertions, 11 deletions
| @@ -225,10 +225,10 @@ void *dlopen( const char *file, int mode ) | |||
| 225 | * all symbols from the original program file, and any objects loaded | 225 | * all symbols from the original program file, and any objects loaded |
| 226 | * with the RTLD_GLOBAL flag. | 226 | * with the RTLD_GLOBAL flag. |
| 227 | * The return value from GetModuleHandle( ) allows us to retrieve | 227 | * The return value from GetModuleHandle( ) allows us to retrieve |
| 228 | * symbols only from the original program file. For objects loaded with | 228 | * symbols only from the original program file. EnumProcessModules() is |
| 229 | * the RTLD_GLOBAL flag, we create our own list later on. For objects | 229 | * used to access symbols from other libraries. For objects loaded |
| 230 | * outside of the program file but already loaded (e.g. linked DLLs) | 230 | * with the RTLD_LOCAL flag, we create our own list later on. They are |
| 231 | * they are added below. | 231 | * excluded from EnumProcessModules() iteration. |
| 232 | */ | 232 | */ |
| 233 | hModule = GetModuleHandle( NULL ); | 233 | hModule = GetModuleHandle( NULL ); |
| 234 | 234 | ||
| @@ -30,26 +30,41 @@ extern "C" { | |||
| 30 | # define DLFCN_EXPORT | 30 | # define DLFCN_EXPORT |
| 31 | #endif | 31 | #endif |
| 32 | 32 | ||
| 33 | /* POSIX says these are implementation-defined. | 33 | /* Relocations are performed when the object is loaded. */ |
| 34 | * To simplify use with Windows API, we treat them the same way. | ||
| 35 | */ | ||
| 36 | |||
| 37 | #define RTLD_LAZY 0 | ||
| 38 | #define RTLD_NOW 0 | 34 | #define RTLD_NOW 0 |
| 39 | 35 | ||
| 36 | /* Relocations are performed at an implementation-defined time. | ||
| 37 | * Windows API does not support lazy symbol resolving (when first reference | ||
| 38 | * to a given symbol occurs). So RTLD_LAZY implementation is same as RTLD_NOW. | ||
| 39 | */ | ||
| 40 | #define RTLD_LAZY RTLD_NOW | ||
| 41 | |||
| 42 | /* All symbols are available for relocation processing of other modules. */ | ||
| 40 | #define RTLD_GLOBAL (1 << 1) | 43 | #define RTLD_GLOBAL (1 << 1) |
| 44 | |||
| 45 | /* All symbols are not made available for relocation processing by other modules. */ | ||
| 41 | #define RTLD_LOCAL (1 << 2) | 46 | #define RTLD_LOCAL (1 << 2) |
| 42 | 47 | ||
| 43 | /* These two were added in The Open Group Base Specifications Issue 6. | 48 | /* These two were added in The Open Group Base Specifications Issue 6. |
| 44 | * Note: All other RTLD_* flags in any dlfcn.h are not standard compliant. | 49 | * Note: All other RTLD_* flags in any dlfcn.h are not standard compliant. |
| 45 | */ | 50 | */ |
| 46 | 51 | ||
| 52 | /* The symbol lookup happens in the normal global scope. */ | ||
| 47 | #define RTLD_DEFAULT ((void *)0) | 53 | #define RTLD_DEFAULT ((void *)0) |
| 54 | |||
| 55 | /* Specifies the next object after this one that defines name. */ | ||
| 48 | #define RTLD_NEXT ((void *)-1) | 56 | #define RTLD_NEXT ((void *)-1) |
| 49 | 57 | ||
| 50 | DLFCN_EXPORT void *dlopen ( const char *file, int mode ); | 58 | /* Open a symbol table handle. */ |
| 51 | DLFCN_EXPORT int dlclose(void *handle); | 59 | DLFCN_EXPORT void *dlopen(const char *file, int mode); |
| 60 | |||
| 61 | /* Close a symbol table handle. */ | ||
| 62 | DLFCN_EXPORT int dlclose(void *handle); | ||
| 63 | |||
| 64 | /* Get the address of a symbol from a symbol table handle. */ | ||
| 52 | DLFCN_EXPORT void *dlsym(void *handle, const char *name); | 65 | DLFCN_EXPORT void *dlsym(void *handle, const char *name); |
| 66 | |||
| 67 | /* Get diagnostic information. */ | ||
| 53 | DLFCN_EXPORT char *dlerror(void); | 68 | DLFCN_EXPORT char *dlerror(void); |
| 54 | 69 | ||
| 55 | #ifdef __cplusplus | 70 | #ifdef __cplusplus |