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| author | H.J. Lu <hjl.tools@gmail.com> | 2017-10-01 14:34:18 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2017-10-01 14:34:54 -0700 |
| commit | 8ed3b64330cd24e2a17d8794a871cab034707a33 (patch) | |
| tree | c0866d5ce8606469bddba2cf06a430c9c4145aaa /misc | |
| parent | ef9b6f73f45a46d079018f63e2d9184eaa0db1d5 (diff) | |
| download | glibc-8ed3b64330cd24e2a17d8794a871cab034707a33.tar.gz glibc-8ed3b64330cd24e2a17d8794a871cab034707a33.tar.xz glibc-8ed3b64330cd24e2a17d8794a871cab034707a33.zip | |
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.
Diffstat (limited to 'misc')
| -rw-r--r-- | misc/efgcvt_r.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/misc/efgcvt_r.c b/misc/efgcvt_r.c index e34c455f0a..7bd3d16c00 100644 --- a/misc/efgcvt_r.c +++ b/misc/efgcvt_r.c @@ -240,6 +240,7 @@ __APPEND (FUNC_PREFIX, ecvt_r) (FLOAT_TYPE value, int ndigit, int *decpt, cvt_symbol_1 (libc, __APPEND (FUNC_PREFIX, symbol), \ APPEND (FUNC_PREFIX, symbol), GLIBC_2_4) # define cvt_symbol_1(lib, local, symbol, version) \ + libc_hidden_def (local) \ versioned_symbol (lib, local, symbol, version) # else # define cvt_symbol(symbol) \ @@ -247,11 +248,15 @@ __APPEND (FUNC_PREFIX, ecvt_r) (FLOAT_TYPE value, int ndigit, int *decpt, APPEND (q, symbol), GLIBC_2_0); \ weak_alias (__APPEND (FUNC_PREFIX, symbol), APPEND (FUNC_PREFIX, symbol)) # define cvt_symbol_1(lib, local, symbol, version) \ + libc_hidden_def (local) \ compat_symbol (lib, local, symbol, version) # endif #else # define cvt_symbol(symbol) \ - weak_alias (__APPEND (FUNC_PREFIX, symbol), APPEND (FUNC_PREFIX, symbol)) + cvt_symbol_1 (__APPEND (FUNC_PREFIX, symbol), APPEND (FUNC_PREFIX, symbol)) +# define cvt_symbol_1(local, symbol) \ + libc_hidden_def (local) \ + weak_alias (local, symbol) #endif cvt_symbol(fcvt_r); cvt_symbol(ecvt_r); |