From 8ed3b64330cd24e2a17d8794a871cab034707a33 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Sun, 1 Oct 2017 14:34:18 -0700 Subject: Mark internal stdlib functions with attribute_hidden [BZ #18822] Mark internal stdlib functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. __realpath is hidden with libc_hidden_proto and libc_hidden_def since the exported realpath is an alias of __realpath. [BZ #18822] * include/stdlib.h (__random): Add attribute_hidden. (__random_r): Likewise. (__srandom_r): Likewise. (__initstate_r): Likewise. (__setstate_r): Likewise. (__erand48_r): Likewise. (__nrand48_r): Likewise. (__jrand48_r): Likewise. (__srand48_r): Likewise. (__seed48_r): Likewise. (__lcong48_r): Likewise. (__drand48_iterate): Likewise. (__setenv): Likewise. (__unsetenv): Likewise. (__clearenv): Likewise. (__ptsname_r): Likewise. (__posix_openpt): Likewise. (__add_to_environ): Likewise. (__realpath): Add libc_hidden_proto. (__ecvt_r): Likewise. (__fcvt_r): Likewise. (__qecvt_r): Likewise. (__qfcvt_r): Likewise. * misc/efgcvt_r.c (cvt_symbol_1): Add libc_hidden_def (local). * stdlib/canonicalize.c (__realpath): Add libc_hidden_def. --- stdlib/canonicalize.c | 1 + 1 file changed, 1 insertion(+) (limited to 'stdlib') diff --git a/stdlib/canonicalize.c b/stdlib/canonicalize.c index c3d892c862..4ff7e0feb8 100644 --- a/stdlib/canonicalize.c +++ b/stdlib/canonicalize.c @@ -218,6 +218,7 @@ error: free (rpath); return NULL; } +libc_hidden_def (__realpath) versioned_symbol (libc, __realpath, realpath, GLIBC_2_3); -- cgit 1.4.1