Message ID | 20170901180029.9527-3-hjl.tools@gmail.com |
---|---|
State | New |
Headers | show |
Series | Hide internal functions in libc.so | expand |
On 9/1/17, H.J. Lu <hjl.tools@gmail.com> wrote: > Mark __ptsname_internal, __mktime_internal and __fopen_internal with > attribute_hidden to allow direct access to them within libc.so and > libc.a without using GOT nor PLT. > > [BZ #18822] > * include/stdlib.h (__ptsname_internal): Add attribute_hidden. > * include/time.h (__mktime_internal): Likewise. > * libio/iolibio.h (__fopen_internal): Likewise. > --- > include/stdlib.h | 2 +- > include/time.h | 2 +- > libio/iolibio.h | 3 ++- > 3 files changed, 4 insertions(+), 3 deletions(-) > > diff --git a/include/stdlib.h b/include/stdlib.h > index c4a6e6f737..2274790a2e 100644 > --- a/include/stdlib.h > +++ b/include/stdlib.h > @@ -78,7 +78,7 @@ extern char *__realpath (const char *__name, char > *__resolved); > extern int __ptsname_r (int __fd, char *__buf, size_t __buflen); > # ifndef _ISOMAC > extern int __ptsname_internal (int fd, char *buf, size_t buflen, > - struct stat64 *stp); > + struct stat64 *stp) attribute_hidden; > # endif > extern int __getpt (void); > extern int __posix_openpt (int __oflag); > diff --git a/include/time.h b/include/time.h > index 9fb0e329a3..e8c07bbfea 100644 > --- a/include/time.h > +++ b/include/time.h > @@ -54,7 +54,7 @@ extern void __tz_compute (time_t timer, struct tm *tm, int > use_localtime) > extern time_t __mktime_internal (struct tm *__tp, > struct tm *(*__func) (const time_t *, > struct tm *), > - time_t *__offset); > + time_t *__offset) attribute_hidden; > extern struct tm *__localtime_r (const time_t *__timer, > struct tm *__tp) attribute_hidden; > > diff --git a/libio/iolibio.h b/libio/iolibio.h > index f215fcef01..754d8b0650 100644 > --- a/libio/iolibio.h > +++ b/libio/iolibio.h > @@ -23,7 +23,8 @@ extern _IO_FILE *_IO_fopen (const char*, const char*); > extern _IO_FILE *_IO_old_fopen (const char*, const char*); > extern _IO_FILE *_IO_new_fopen (const char*, const char*); > extern _IO_FILE *_IO_fopen64 (const char*, const char*); > -extern _IO_FILE *__fopen_internal (const char*, const char*, int); > +extern _IO_FILE *__fopen_internal (const char*, const char*, int) > + attribute_hidden; > extern _IO_FILE *__fopen_maybe_mmap (_IO_FILE *) __THROW; > extern int _IO_fprintf (_IO_FILE*, const char*, ...); > extern int _IO_fputs (const char*, _IO_FILE*); > -- > 2.13.5 > > Tested with build-many-glibcs.py. I am checking it in.
diff --git a/include/stdlib.h b/include/stdlib.h index c4a6e6f737..2274790a2e 100644 --- a/include/stdlib.h +++ b/include/stdlib.h @@ -78,7 +78,7 @@ extern char *__realpath (const char *__name, char *__resolved); extern int __ptsname_r (int __fd, char *__buf, size_t __buflen); # ifndef _ISOMAC extern int __ptsname_internal (int fd, char *buf, size_t buflen, - struct stat64 *stp); + struct stat64 *stp) attribute_hidden; # endif extern int __getpt (void); extern int __posix_openpt (int __oflag); diff --git a/include/time.h b/include/time.h index 9fb0e329a3..e8c07bbfea 100644 --- a/include/time.h +++ b/include/time.h @@ -54,7 +54,7 @@ extern void __tz_compute (time_t timer, struct tm *tm, int use_localtime) extern time_t __mktime_internal (struct tm *__tp, struct tm *(*__func) (const time_t *, struct tm *), - time_t *__offset); + time_t *__offset) attribute_hidden; extern struct tm *__localtime_r (const time_t *__timer, struct tm *__tp) attribute_hidden; diff --git a/libio/iolibio.h b/libio/iolibio.h index f215fcef01..754d8b0650 100644 --- a/libio/iolibio.h +++ b/libio/iolibio.h @@ -23,7 +23,8 @@ extern _IO_FILE *_IO_fopen (const char*, const char*); extern _IO_FILE *_IO_old_fopen (const char*, const char*); extern _IO_FILE *_IO_new_fopen (const char*, const char*); extern _IO_FILE *_IO_fopen64 (const char*, const char*); -extern _IO_FILE *__fopen_internal (const char*, const char*, int); +extern _IO_FILE *__fopen_internal (const char*, const char*, int) + attribute_hidden; extern _IO_FILE *__fopen_maybe_mmap (_IO_FILE *) __THROW; extern int _IO_fprintf (_IO_FILE*, const char*, ...); extern int _IO_fputs (const char*, _IO_FILE*);