118 lines
2.2 KiB
C
118 lines
2.2 KiB
C
/**
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* @defgroup dlfcn Dlfcn
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* @ingroup libc
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*/
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#ifndef _DLFCN_H
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#define _DLFCN_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <features.h>
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#define RTLD_LAZY 1
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#define RTLD_NOW 2
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#define RTLD_NOLOAD 4
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#define RTLD_NODELETE 4096
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#define RTLD_GLOBAL 256
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#define RTLD_LOCAL 0
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#define RTLD_NEXT ((void *)-1)
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#define RTLD_DEFAULT ((void *)0)
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#define RTLD_DI_LINKMAP 2
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/**
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* @ingroup dlfcn
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*
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* @par Description:
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* The function shall close the loading shared libraries.
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*
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* @attention
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* <ul>
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* <li>None.</li>
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* </ul>
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*
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* @retval #int On success, this function shall return LOS_OK.
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* On failure, this function shall return LOS_NOK or -1.
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*
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* @par Dependency:
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* <ul><li>dlfcn.h</li></ul>
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*
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* @see dlopen | dlsym
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*
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* @since Huawei LiteOS V100R001C00
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*/
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int dlclose(void *);
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char *dlerror(void);
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/**
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* @ingroup dlfcn
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*
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* @par Description:
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* The function shall return the pointer to the handle of loading shared libraries.
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*
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* @attention
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* <ul>
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* <li>The function is not supported for the second param.</li>
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* </ul>
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*
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* @retval #void* On success, this function shall return the pointer to the handle of
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* loading shared libraries. On failure, this function shall return NULL.
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*
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* @par Dependency:
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* <ul><li>dlfcn.h</li></ul>
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*
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* @see dlclose | dlsym
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*
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* @since Huawei LiteOS V100R001C00
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*/
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void *dlopen(const char *, int);
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/**
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* @ingroup dlfcn
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*
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* @par Description:
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* The function shall return the second param address in memory of loading shared libraries.
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*
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* @attention
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* <ul>
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* <li>None.</li>
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* </ul>
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*
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* @retval #void* On success, this function shall return the second param address in memory
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* of loading shared libraries. On failure, this function shall return NULL.
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*
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* @par Dependency:
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* <ul><li>dlfcn.h</li></ul>
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*
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* @see dlopen | dlclose
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*
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* @since Huawei LiteOS V100R001C00
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*/
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void *dlsym(void *__restrict, const char *__restrict);
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#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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typedef struct {
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const char *dli_fname;
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void *dli_fbase;
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const char *dli_sname;
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void *dli_saddr;
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} Dl_info;
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int dladdr(const void *, Dl_info *);
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int dlinfo(void *, int, void *);
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#endif
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#if _REDIR_TIME64
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__REDIR(dlsym, __dlsym_time64);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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