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7c3018f9e4
glibc/include/unistd.h
Zack Weinberg 7c3018f9e4 Suppress internal declarations for most of the testsuite. 
This patch adds a new build module called 'testsuite'.
IS_IN (testsuite) implies _ISOMAC, as do IS_IN_build and __cplusplus
(which means several ad-hoc tests for __cplusplus can go away).
libc-symbols.h now suppresses almost all of *itself* when _ISOMAC is
defined; in particular, _ISOMAC mode does not get config.h
automatically anymore.

There are still quite a few tests that need to see internal gunk of
one variety or another.  For them, we now have 'tests-internal' and
'test-internal-extras'; files in this category will still be compiled
with MODULE_NAME=nonlib, and everything proceeds as it always has.
The bulk of this patch is moving tests from 'tests' to
'tests-internal'.  There is also 'tests-static-internal', which has
the same effect on files in 'tests-static', and 'modules-names-tests',
which has the *inverse* effect on files in 'modules-names' (it's
inverted because most of the things in modules-names are *not* tests).
For both of these, the file must appear in *both* the new variable and
the old one.

There is also now a special case for when libc-symbols.h is included
without MODULE_NAME being defined at all.  (This happens during the
creation of libc-modules.h, and also when preprocessing Versions
files.)  When this happens, IS_IN is set to be always false and
_ISOMAC is *not* defined, which was the status quo, but now it's
explicit.

The remaining changes to C source files in this patch seemed likely to
cause problems in the absence of the main change.  They should be
relatively self-explanatory.  In a few cases I duplicated a definition
from an internal header rather than move the test to tests-internal;
this was a judgement call each time and I'm happy to change those
however reviewers feel is more appropriate.

	* Makerules: New subdir configuration variables 'tests-internal'
	and 'test-internal-extras'.  Test files in these categories will
	still be compiled with MODULE_NAME=nonlib.  Test files in the
	existing categories (tests, xtests, test-srcs, test-extras) are
	now compiled with MODULE_NAME=testsuite.
	New subdir configuration variable 'modules-names-tests'.  Files
	which are in both 'modules-names' and 'modules-names-tests' will
	be compiled with MODULE_NAME=testsuite instead of
	MODULE_NAME=extramodules.
	(gen-as-const-headers): Move to tests-internal.
	(do-tests-clean, common-mostlyclean): Support tests-internal.
	* Makeconfig (built-modules): Add testsuite.
	* Makefile: Change libof-check-installed-headers-c and
	libof-check-installed-headers-cxx to 'testsuite'.
	* Rules: Likewise.  Support tests-internal.
	* benchtests/strcoll-inputs/filelist#en_US.UTF-8:
	Remove extra-modules.mk.

	* config.h.in: Don't check for __OPTIMIZE__ or __FAST_MATH__ here.
	* include/libc-symbols.h: Move definitions of _GNU_SOURCE,
	PASTE_NAME, PASTE_NAME1, IN_MODULE, IS_IN, and IS_IN_LIB to the
	very top of the file and rationalize their order.
	If MODULE_NAME is not defined at all, define IS_IN to always be
	false, and don't define _ISOMAC.
	If any of IS_IN (testsuite), IS_IN_build, or __cplusplus are
	true, define _ISOMAC and suppress everything else in this file,
	starting with the inclusion of config.h.
	Do check for inappropriate definitions of __OPTIMIZE__ and
	__FAST_MATH__ here, but only if _ISOMAC is not defined.
        Correct some out-of-date commentary.

	* include/math.h: If _ISOMAC is defined, undefine NO_LONG_DOUBLE
	and _Mlong_double_ before including math.h.
	* include/string.h: If _ISOMAC is defined, don't expose
	_STRING_ARCH_unaligned. Move a comment to a more appropriate
	location.

	* include/errno.h, include/stdio.h, include/stdlib.h, include/string.h
	* include/time.h, include/unistd.h, include/wchar.h: No need to
	check __cplusplus nor use __BEGIN_DECLS/__END_DECLS.

	* misc/sys/cdefs.h (__NTHNL): New macro.
	* sysdeps/m68k/m680x0/fpu/bits/mathinline.h
	(__m81_defun): Use __NTHNL to avoid errors with GCC 6.

	* elf/tst-env-setuid-tunables.c: Include config.h with _LIBC
	defined, for HAVE_TUNABLES.
	* inet/tst-checks-posix.c: No need to define _ISOMAC.
	* intl/tst-gettext2.c: Provide own definition of N_.
	* math/test-signgam-finite-c99.c: No need to define _ISOMAC.
	* math/test-signgam-main.c: No need to define _ISOMAC.
	* stdlib/tst-strtod.c: Convert to test-driver. Split locale_test to...
	* stdlib/tst-strtod1i.c: ...this new file.
	* stdlib/tst-strtod5.c: Convert to test-driver and add copyright notice.
        Split tests of __strtod_internal to...
	* stdlib/tst-strtod5i.c: ...this new file.
	* string/test-string.h: Include stdint.h. Duplicate definition of
	inhibit_loop_to_libcall here (from libc-symbols.h).
	* string/test-strstr.c: Provide dummy definition of
	libc_hidden_builtin_def when including strstr.c.
	* sysdeps/ia64/fpu/libm-symbols.h: Suppress entire file in _ISOMAC
	mode; no need to test __STRICT_ANSI__ nor __cplusplus as well.
	* sysdeps/x86_64/fpu/math-tests-arch.h: Include cpu-features.h.
	Don't include init-arch.h.
	* sysdeps/x86_64/multiarch/test-multiarch.h: Include cpu-features.h.
	Don't include init-arch.h.

	* elf/Makefile: Move tst-ptrguard1-static, tst-stackguard1-static,
	tst-tls1-static, tst-tls2-static, tst-tls3-static, loadtest,
	unload, unload2, circleload1, neededtest, neededtest2,
	neededtest3, neededtest4, tst-tls1, tst-tls2, tst-tls3,
	tst-tls6, tst-tls7, tst-tls8, tst-dlmopen2, tst-ptrguard1,
	tst-stackguard1, tst-_dl_addr_inside_object, and all of the
	ifunc tests to tests-internal.
	Don't add $(modules-names) to test-extras.
	* inet/Makefile: Move tst-inet6_scopeid_pton to tests-internal.
	Add tst-deadline to tests-static-internal.
	* malloc/Makefile: Move tst-mallocstate and tst-scratch_buffer to
	tests-internal.
	* misc/Makefile: Move tst-atomic and tst-atomic-long to tests-internal.
	* nptl/Makefile: Move tst-typesizes, tst-rwlock19, tst-sem11,
	tst-sem12, tst-sem13, tst-barrier5, tst-signal7, tst-tls3,
	tst-tls3-malloc, tst-tls5, tst-stackguard1, tst-sem11-static,
	tst-sem12-static, and tst-stackguard1-static to tests-internal.
        Link tests-internal with libpthread also.
	Don't add $(modules-names) to test-extras.
	* nss/Makefile: Move tst-field to tests-internal.
	* posix/Makefile: Move bug-regex5, bug-regex20, bug-regex33,
	tst-rfc3484, tst-rfc3484-2, and tst-rfc3484-3 to tests-internal.
	* stdlib/Makefile: Move tst-strtod1i, tst-strtod3, tst-strtod4,
	tst-strtod5i, tst-tls-atexit, and tst-tls-atexit-nodelete to
	tests-internal.
        * sunrpc/Makefile: Move tst-svc_register to tests-internal.
	* sysdeps/powerpc/Makefile: Move test-get_hwcap and
	test-get_hwcap-static to tests-internal.
	* sysdeps/unix/sysv/linux/Makefile: Move tst-setgetname to
	tests-internal.
	* sysdeps/x86_64/fpu/Makefile: Add all libmvec test modules to
	modules-names-tests.
2017-05-11 19:27:59 -04:00

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#ifndef _UNISTD_H
# include <posix/unistd.h>
# ifndef _ISOMAC
libc_hidden_proto (_exit, __noreturn__)
rtld_hidden_proto (_exit, __noreturn__)
libc_hidden_proto (alarm)
libc_hidden_proto (confstr)
libc_hidden_proto (execl)
libc_hidden_proto (execle)
libc_hidden_proto (execlp)
libc_hidden_proto (execvp)
libc_hidden_proto (getpid)
libc_hidden_proto (getsid)
libc_hidden_proto (getdomainname)
extern __typeof (getlogin_r) __getlogin_r __nonnull ((1));
libc_hidden_proto (__getlogin_r)
libc_hidden_proto (getlogin_r)
libc_hidden_proto (seteuid)
libc_hidden_proto (setegid)
libc_hidden_proto (tcgetpgrp)
libc_hidden_proto (readlinkat)
/* Now define the internal interfaces. */
extern int __access (const char *__name, int __type);
extern int __euidaccess (const char *__name, int __type);
extern __off64_t __lseek64 (int __fd, __off64_t __offset, int __whence);
extern __off_t __lseek (int __fd, __off_t __offset, int __whence);
libc_hidden_proto (__lseek)
extern __off_t __libc_lseek (int __fd, __off_t __offset, int __whence);
extern __off64_t __libc_lseek64 (int __fd, __off64_t __offset, int __whence);
extern ssize_t __pread (int __fd, void *__buf, size_t __nbytes,
__off_t __offset);
libc_hidden_proto (__pread);
extern ssize_t __libc_pread (int __fd, void *__buf, size_t __nbytes,
__off_t __offset);
extern ssize_t __pread64 (int __fd, void *__buf, size_t __nbytes,
__off64_t __offset);
libc_hidden_proto (__pread64);
extern ssize_t __libc_pread64 (int __fd, void *__buf, size_t __nbytes,
__off64_t __offset);
extern ssize_t __pwrite (int __fd, const void *__buf, size_t __n,
__off_t __offset);
libc_hidden_proto (__pwrite)
extern ssize_t __libc_pwrite (int __fd, const void *__buf, size_t __n,
__off_t __offset);
extern ssize_t __pwrite64 (int __fd, const void *__buf, size_t __n,
__off64_t __offset);
libc_hidden_proto (__pwrite64)
extern ssize_t __libc_pwrite64 (int __fd, const void *__buf, size_t __n,
__off64_t __offset) attribute_hidden;
extern ssize_t __libc_read (int __fd, void *__buf, size_t __n);
libc_hidden_proto (__libc_read)
libc_hidden_proto (read)
extern ssize_t __libc_write (int __fd, const void *__buf, size_t __n);
libc_hidden_proto (__libc_write)
libc_hidden_proto (write)
extern int __pipe (int __pipedes[2]);
libc_hidden_proto (__pipe)
extern int __pipe2 (int __pipedes[2], int __flags);
extern unsigned int __sleep (unsigned int __seconds);
extern int __chown (const char *__file,
__uid_t __owner, __gid_t __group);
libc_hidden_proto (__chown)
extern int __fchown (int __fd,
__uid_t __owner, __gid_t __group);
extern int __lchown (const char *__file, __uid_t __owner,
__gid_t __group);
extern int __chdir (const char *__path);
extern int __fchdir (int __fd);
extern char *__getcwd (char *__buf, size_t __size);
extern int __rmdir (const char *__path);
extern int __execvpe (const char *file, char *const argv[],
char *const envp[]);
/* Get the canonical absolute name of the named directory, and put it in SIZE
bytes of BUF. Returns NULL if the directory couldn't be determined or
SIZE was too small. If successful, returns BUF. In GNU, if BUF is
NULL, an array is allocated with `malloc'; the array is SIZE bytes long,
unless SIZE <= 0, in which case it is as big as necessary. */
char *__canonicalize_directory_name_internal (const char *__thisdir,
char *__buf,
size_t __size) attribute_hidden;
extern int __dup (int __fd);
libc_hidden_proto (__dup)
extern int __dup2 (int __fd, int __fd2);
libc_hidden_proto (__dup2)
extern int __dup3 (int __fd, int __fd2, int flags);
libc_hidden_proto (__dup3)
extern int __execve (const char *__path, char *const __argv[],
char *const __envp[]);
extern long int __pathconf (const char *__path, int __name);
extern long int __fpathconf (int __fd, int __name);
extern long int __sysconf (int __name);
libc_hidden_proto (__sysconf)
extern __pid_t __getpid (void);
libc_hidden_proto (__getpid)
extern __pid_t __getppid (void);
extern __pid_t __setsid (void);
extern __uid_t __getuid (void);
extern __uid_t __geteuid (void);
extern __gid_t __getgid (void);
extern __gid_t __getegid (void);
extern int __getgroups (int __size, __gid_t __list[]);
libc_hidden_proto (__getpgid)
extern int __group_member (__gid_t __gid);
extern int __setuid (__uid_t __uid);
extern int __setreuid (__uid_t __ruid, __uid_t __euid);
extern int __setgid (__gid_t __gid);
extern int __setpgid (__pid_t __pid, __pid_t __pgid);
libc_hidden_proto (__setpgid)
extern int __setregid (__gid_t __rgid, __gid_t __egid);
extern int __getresuid (__uid_t *__ruid, __uid_t *__euid, __uid_t *__suid);
extern int __getresgid (__gid_t *__rgid, __gid_t *__egid, __gid_t *__sgid);
extern int __setresuid (__uid_t __ruid, __uid_t __euid, __uid_t __suid);
extern int __setresgid (__gid_t __rgid, __gid_t __egid, __gid_t __sgid);
libc_hidden_proto (__getresuid)
libc_hidden_proto (__getresgid)
libc_hidden_proto (__setresuid)
libc_hidden_proto (__setresgid)
extern __pid_t __vfork (void);
libc_hidden_proto (__vfork)
extern int __ttyname_r (int __fd, char *__buf, size_t __buflen);
extern int __isatty (int __fd);
extern int __link (const char *__from, const char *__to);
extern int __symlink (const char *__from, const char *__to);
extern ssize_t __readlink (const char *__path, char *__buf, size_t __len);
extern int __unlink (const char *__name);
extern int __gethostname (char *__name, size_t __len);
extern int __profil (unsigned short int *__sample_buffer, size_t __size,
size_t __offset, unsigned int __scale);
extern int __getdtablesize (void);
extern int __brk (void *__addr);
extern int __close (int __fd);
libc_hidden_proto (__close)
extern int __libc_close (int __fd);
extern ssize_t __read (int __fd, void *__buf, size_t __nbytes);
libc_hidden_proto (__read)
extern ssize_t __write (int __fd, const void *__buf, size_t __n);
libc_hidden_proto (__write)
extern __pid_t __fork (void);
libc_hidden_proto (__fork)
extern int __getpagesize (void) __attribute__ ((__const__));
libc_hidden_proto (__getpagesize)
extern int __ftruncate (int __fd, __off_t __length);
extern int __ftruncate64 (int __fd, __off64_t __length);
extern int __truncate (const char *path, __off_t __length);
extern void *__sbrk (intptr_t __delta);
libc_hidden_proto (__sbrk)
/* This variable is set nonzero at startup if the process's effective
IDs differ from its real IDs, or it is otherwise indicated that
extra security should be used. When this is set the dynamic linker
and some functions contained in the C library ignore various
environment variables that normally affect them. */
extern int __libc_enable_secure attribute_relro;
extern int __libc_enable_secure_decided;
rtld_hidden_proto (__libc_enable_secure)
/* Various internal function. */
extern void __libc_check_standard_fds (void) attribute_hidden;
/* Internal name for fork function. */
extern __pid_t __libc_fork (void);
/* Suspend the process until a signal arrives.
This always returns -1 and sets `errno' to EINTR. */
extern int __libc_pause (void);
/* Not cancelable variant. */
extern int __pause_nocancel (void) attribute_hidden;
extern int __getlogin_r_loginuid (char *name, size_t namesize)
attribute_hidden;
# if IS_IN (rtld)
# include <dl-unistd.h>
# endif
# if IS_IN (rtld) || !defined SHARED
/* __access variant that does not set errno. Used in very early initialization
code in libc.a and ld.so. It follows access return semantics (zero for
sucess otherwise a value different than 0). */
extern __typeof (__access) __access_noerrno attribute_hidden;
# endif
# endif
#endif
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