diff options
Diffstat (limited to 'ldso/include/dl-defs.h')
| -rw-r--r-- | ldso/include/dl-defs.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/ldso/include/dl-defs.h b/ldso/include/dl-defs.h index d0c61d44e..18eff43c1 100644 --- a/ldso/include/dl-defs.h +++ b/ldso/include/dl-defs.h @@ -140,13 +140,19 @@ typedef struct { && (!(TFROM) || (TFROM)->loadaddr < (TPNT)->loadaddr)) #endif +/* Use this macro to convert a pointer to a function's entry point to + * a pointer to function. The pointer is assumed to have already been + * relocated. LOADADDR is passed because it may contain additional + * information needed to compute the pointer to function. + */ +#ifndef DL_ADDR_TO_FUNC_PTR +# define DL_ADDR_TO_FUNC_PTR(ADDR, LOADADDR) ((void(*)(void))(ADDR)) +#endif + /* On some platforms, computing a pointer to function is more expensive than calling a function at a given address, so this alternative is provided. The function signature must be given within parentheses, as in a type cast. */ -#ifndef DL_ADDR_TO_FUNC_PTR -# define DL_ADDR_TO_FUNC_PTR(ADDR, LOADADDR) (ADDR) -#endif #ifndef DL_CALL_FUNC_AT_ADDR # define DL_CALL_FUNC_AT_ADDR(ADDR, LOADADDR, SIGNATURE, ...) \ ((*SIGNATURE DL_ADDR_TO_FUNC_PTR ((ADDR), (LOADADDR)))(__VA_ARGS__)) |