diff options
Diffstat (limited to 'ldso/include')
| -rw-r--r-- | ldso/include/dl-defs.h | 12 | ||||
| -rw-r--r-- | ldso/include/dl-hash.h | 2 |
2 files changed, 13 insertions, 1 deletions
diff --git a/ldso/include/dl-defs.h b/ldso/include/dl-defs.h index 932f6ac53..d0c61d44e 100644 --- a/ldso/include/dl-defs.h +++ b/ldso/include/dl-defs.h @@ -140,4 +140,16 @@ typedef struct { && (!(TFROM) || (TFROM)->loadaddr < (TPNT)->loadaddr)) #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__)) +#endif + #endif /* _LD_DEFS_H */ diff --git a/ldso/include/dl-hash.h b/ldso/include/dl-hash.h index 8f30688d1..c21094020 100644 --- a/ldso/include/dl-hash.h +++ b/ldso/include/dl-hash.h @@ -28,7 +28,7 @@ struct dyn_elf { struct elf_resolve { /* These entries must be in this order to be compatible with the interface used by gdb to obtain the list of symbols. */ - DL_LOADADDR_TYPE loadaddr; /* Base address shared object is loaded at. */ + DL_LOADADDR_TYPE loadaddr; /* Base address shared object is loaded at. */ char *libname; /* Absolute file name object was found in. */ ElfW(Dyn) *dynamic_addr; /* Dynamic section of the shared object. */ struct elf_resolve * next; |