diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2006-09-19 01:29:11 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2006-09-19 01:29:11 +0000 |
| commit | 996be4d2f17f10979c591575dcff12e502c4a87e (patch) | |
| tree | f864d9d937a62efa6625a22601e9e9e067a6e82a /ldso/include/dl-defs.h | |
| parent | 7f9010b2d3df3716c67fc00a0f1ec3c5fd127311 (diff) | |
merge some more FDPIC related fixes from Bernd Schmidt
Diffstat (limited to 'ldso/include/dl-defs.h')
| -rw-r--r-- | ldso/include/dl-defs.h | 12 |
1 files changed, 12 insertions, 0 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 */ |