glibc/include/bits/stdio2-decl.h

#include <libio/bits/stdio2-decl.h>

#ifndef _ISOMAC
libc_hidden_proto (__fgets_unlocked_chk)
libc_hidden_ldbl_proto (vfprintf)
libc_hidden_ldbl_proto (__vasprintf_chk)
libc_hidden_ldbl_proto (__vfprintf_chk)
#endif
Apply asm redirections in stdio.h before first use [BZ #27087] Compilers may not be able to apply asm redirections to functions after these functions are used for the first time, e.g. clang 13. Fix [BZ #27087] by applying all long double-related asm redirections before using functions in bits/stdio.h. However, as these asm redirections depend on the declarations provided by libio/bits/stdio2.h, this header was split in 2: - libio/bits/stdio2-decl.h contains all function declarations; - libio/bits/stdio2.h remains with the remaining contents, including redirections. This also adds the access attribute to __vsnprintf_chk that was missing. Tested with build-many-glibcs.py. Reviewed-by: Paul E. Murphy <murphyp@linux.ibm.com> 2022-07-07 21:12:58 +00:00			`#include <libio/bits/stdio2-decl.h>`
Enable --enable-fortify-source with clang clang generates internal calls for some _chk symbol, so add internal aliases for them, and stub some with rtld-stubbed-symbols to avoid ld.so linker issues. 2025-10-28 17:08:33 +00:00
			`#ifndef _ISOMAC`
			`libc_hidden_proto (__fgets_unlocked_chk)`
			`libc_hidden_ldbl_proto (vfprintf)`
			`libc_hidden_ldbl_proto (__vasprintf_chk)`
			`libc_hidden_ldbl_proto (__vfprintf_chk)`
			`#endif`