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Remove __FAVOR_BSD.

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This commit is contained in:
Joseph Myers 2013-12-17 18:05:42 +00:00
parent 0f197fe5b6
commit 7011c2622f
10 changed files with 117 additions and 202 deletions
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17
ChangeLog
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@ -1,3 +1,20 @@
2013-12-17 Joseph Myers <joseph@codesourcery.com>
* include/features.h (__FAVOR_BSD): Do not define.
* manual/creature.texi (_BSD_SOURCE): Do not document as enabling
features conflicting with POSIX.
(_GNU_SOURCE): Do not mention interaction with _BSD_SOURCE.
(_BSD_SOURCE): Remove description of not being a subset of other
feature test macros.
* manual/job.texi (getpgrp): Do not document BSD version.
(getpgid): Do not document by reference to BSD getpgrp.
* posix/unistd.h [__FAVOR_BSD]: Remove conditional code.
* setjmp/setjmp.h [__FAVOR_BSD]: Likewise.
* signal/signal.h [__FAVOR_BSD]: Likewise.
* sysdeps/gnu/netinet/tcp.h (struct tcphdr): Use anonymous unions
instead of making contents conditional on [__FAVOR_BSD].
* sysdeps/gnu/netinet/udp.h (struct udphdr): Likewise.
2013-12-17 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
* sysdeps/powerpc/fpu/libm-test-ulps: Update.

3
NEWS
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@ -100,6 +100,9 @@ Version 2.19
* The soft-float powerpc port now supports e500 processors.
* Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
* The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
conflict with POSIX.
Version 2.18

9
include/features.h
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@ -80,7 +80,6 @@
__USE_GNU Define GNU extensions.
__USE_REENTRANT Define reentrant/thread-safe *_r functions.
__USE_FORTIFY_LEVEL Additional security measures used, according to level.
__FAVOR_BSD Favor 4.3BSD things in cases of conflict.
The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
defined by this file unconditionally. `__GNU_LIBRARY__' is provided
@ -120,7 +119,6 @@
#undef __USE_GNU
#undef __USE_REENTRANT
#undef __USE_FORTIFY_LEVEL
#undef __FAVOR_BSD
#undef __KERNEL_STRICT_NAMES
/* Suppress kernel-name space pollution unless user expressedly asks
@ -144,13 +142,6 @@
#endif
/* If _BSD_SOURCE was defined by the user, favor BSD over POSIX. */
#if defined _BSD_SOURCE && \
!(defined _POSIX_SOURCE || defined _POSIX_C_SOURCE || \
defined _XOPEN_SOURCE || defined _GNU_SOURCE || defined _SVID_SOURCE)
# define __FAVOR_BSD 1
#endif
/* If _GNU_SOURCE was defined by the user, turn on all the other features. */
#ifdef _GNU_SOURCE
# undef _ISOC95_SOURCE

41
manual/creature.texi
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@ -77,24 +77,6 @@ edition is made available.
@defvr Macro _BSD_SOURCE
If you define this macro, functionality derived from 4.3 BSD Unix is
included as well as the @w{ISO C}, POSIX.1, and POSIX.2 material.
Some of the features derived from 4.3 BSD Unix conflict with the
corresponding features specified by the POSIX.1 standard. If this
macro is defined, the 4.3 BSD definitions take precedence over the
POSIX definitions.
Due to the nature of some of the conflicts between 4.3 BSD and POSIX.1,
you need to use a special @dfn{BSD compatibility library} when linking
programs compiled for BSD compatibility. This is because some functions
must be defined in two different ways, one of them in the normal C
library, and one of them in the compatibility library. If your program
defines @code{_BSD_SOURCE}, you must give the option @samp{-lbsd-compat}
to the compiler or linker when linking the program, to tell it to find
functions in this special compatibility library before looking for them in
the normal C library.
@pindex -lbsd-compat
@pindex bsd-compat
@cindex BSD compatibility library.
@end defvr
@comment (none)
@ -204,21 +186,6 @@ If you define this macro, everything is included: @w{ISO C89}, @w{ISO
C99}, POSIX.1, POSIX.2, BSD, SVID, X/Open, LFS, and GNU extensions. In
the cases where POSIX.1 conflicts with BSD, the POSIX definitions take
precedence.
If you want to get the full effect of @code{_GNU_SOURCE} but make the
BSD definitions take precedence over the POSIX definitions, use this
sequence of definitions:
@smallexample
#define _GNU_SOURCE
#define _BSD_SOURCE
#define _SVID_SOURCE
@end smallexample
Note that if you do this, you must link your program with the BSD
compatibility library by passing the @samp{-lbsd-compat} option to the
compiler or linker. @strong{NB:} If you forget to do this, you may
get very strange errors at run time.
@end defvr
@comment (none)
@ -248,11 +215,3 @@ those features. For example, if you define @code{_POSIX_C_SOURCE}, then
defining @code{_POSIX_SOURCE} as well has no effect. Likewise, if you
define @code{_GNU_SOURCE}, then defining either @code{_POSIX_SOURCE} or
@code{_POSIX_C_SOURCE} or @code{_SVID_SOURCE} as well has no effect.
Note, however, that the features of @code{_BSD_SOURCE} are not a subset of
any of the other feature test macros supported. This is because it defines
BSD features that take precedence over the POSIX features that are
requested by the other macros. For this reason, defining
@code{_BSD_SOURCE} in addition to the other feature test macros does have
an effect: it causes the BSD features to take priority over the conflicting
POSIX features.

39
manual/job.texi
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@ -1118,39 +1118,18 @@ from the calling process.
@end table
@end deftypefun
The @code{getpgrp} function has two definitions: one derived from BSD
Unix, and one from the POSIX.1 standard. The feature test macros you
have selected (@pxref{Feature Test Macros}) determine which definition
you get. Specifically, you get the BSD version if you define
@code{_BSD_SOURCE}; otherwise, you get the POSIX version if you define
@code{_POSIX_SOURCE} or @code{_GNU_SOURCE}. Programs written for old
BSD systems will not include @file{unistd.h}, which defines
@code{getpgrp} specially under @code{_BSD_SOURCE}. You must link such
programs with the @code{-lbsd-compat} option to get the BSD definition.@refill
@pindex -lbsd-compat
@pindex bsd-compat
@cindex BSD compatibility library
@comment unistd.h
@comment POSIX.1
@deftypefun pid_t getpgrp (void)
The @code{getpgrp} function returns the process group ID of
the calling process.
@end deftypefun
@comment unistd.h
@comment POSIX.1
@deftypefn {POSIX.1 Function} pid_t getpgrp (void)
The POSIX.1 definition of @code{getpgrp} returns the process group ID of
the calling process.
@end deftypefn
@deftypefun int getpgid (pid_t @var{pid})
@comment unistd.h
@comment BSD
@deftypefn {BSD Function} pid_t getpgrp (pid_t @var{pid})
The BSD definition of @code{getpgrp} returns the process group ID of the
process @var{pid}. You can supply a value of @code{0} for the @var{pid}
argument to get information about the calling process.
@end deftypefn
@comment unistd.h
@comment SVID
@deftypefn {System V Function} int getpgid (pid_t @var{pid})
@code{getpgid} is the same as the BSD function @code{getpgrp}. It
The @code{getpgid} function
returns the process group ID of the process @var{pid}. You can supply a
value of @code{0} for the @var{pid} argument to get information about
the calling process.
@ -1166,7 +1145,7 @@ different sessions, and the implementation doesn't allow to access the
process group ID of the process with ID @var{pid} from the calling
process.
@end table
@end deftypefn
@end deftypefun
@comment unistd.h
@comment POSIX.1

26
posix/unistd.h
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@ -630,17 +630,8 @@ extern __pid_t getpid (void) __THROW;
/* Get the process ID of the calling process's parent. */
extern __pid_t getppid (void) __THROW;
/* Get the process group ID of the calling process.
This function is different on old BSD. */
#ifndef __FAVOR_BSD
/* Get the process group ID of the calling process. */
extern __pid_t getpgrp (void) __THROW;
#else
# ifdef __REDIRECT_NTH
extern __pid_t __REDIRECT_NTH (getpgrp, (__pid_t __pid), __getpgid);
# else
# define getpgrp __getpgid
# endif
#endif
/* Get the process group ID of process PID. */
extern __pid_t __getpgid (__pid_t __pid) __THROW;
@ -662,25 +653,12 @@ extern int setpgid (__pid_t __pid, __pid_t __pgid) __THROW;
New programs should always use `setpgid' instead.
The default in GNU is to provide the System V function. The BSD
function is available under -D_BSD_SOURCE. */
# ifndef __FAVOR_BSD
GNU provides the POSIX.1 function. */
/* Set the process group ID of the calling process to its own PID.
This is exactly the same as `setpgid (0, 0)'. */
extern int setpgrp (void) __THROW;
# else
/* Another name for `setpgid' (above). */
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (setpgrp, (__pid_t __pid, __pid_t __pgrp), setpgid);
# else
# define setpgrp setpgid
# endif
# endif /* Favor BSD. */
#endif /* Use SVID or BSD. */
/* Create a new session with the calling process as its leader.

9
setjmp/setjmp.h
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@ -58,20 +58,13 @@ __END_NAMESPACE_STD
This is the internal name for `sigsetjmp'. */
extern int __sigsetjmp (struct __jmp_buf_tag __env[1], int __savemask) __THROWNL;
#ifndef __FAVOR_BSD
/* Store the calling environment in ENV, not saving the signal mask.
Return 0. */
extern int _setjmp (struct __jmp_buf_tag __env[1]) __THROWNL;
/* Do not save the signal mask. This is equivalent to the `_setjmp'
BSD function. */
# define setjmp(env) _setjmp (env)
#else
/* We are in 4.3 BSD-compatibility mode in which `setjmp'
saves the signal mask like `sigsetjmp (ENV, 1)'. We have to
define a macro since ISO C says `setjmp' is one. */
# define setjmp(env) setjmp (env)
#endif /* Favor BSD. */
#define setjmp(env) _setjmp (env)
__BEGIN_NAMESPACE_STD

22
signal/signal.h
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@ -158,28 +158,20 @@ extern void psiginfo (const siginfo_t *__pinfo, const char *__s);
/* The `sigpause' function has two different interfaces. The original
BSD definition defines the argument as a mask of the signal, while
the more modern interface in X/Open defines it as the signal
number. We go with the BSD version unless the user explicitly
selects the X/Open version.
/* The `sigpause' function in X/Open defines the argument as the
signal number. This requires redirecting to another function
because the default version in glibc uses an old BSD interface.
This function is a cancellation point and therefore not marked with
__THROW. */
extern int __sigpause (int __sig_or_mask, int __is_sig);
#ifdef __FAVOR_BSD
/* Set the mask of blocked signals to MASK,
wait for a signal to arrive, and then restore the mask. */
extern int sigpause (int __mask) __THROW __attribute_deprecated__;
#else
# ifdef __USE_XOPEN
# ifdef __GNUC__
#ifdef __USE_XOPEN
# ifdef __GNUC__
extern int sigpause (int __sig) __asm__ ("__xpg_sigpause");
# else
# else
/* Remove a signal from the signal mask and suspend the process. */
# define sigpause(sig) __sigpause ((sig), 1)
# endif
# define sigpause(sig) __sigpause ((sig), 1)
# endif
#endif

120
sysdeps/gnu/netinet/tcp.h
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@ -66,7 +66,6 @@
# include <sys/types.h>
# include <sys/socket.h>
# ifdef __FAVOR_BSD
typedef u_int32_t tcp_seq;
/*
* TCP header.
@ -74,66 +73,69 @@ typedef u_int32_t tcp_seq;
*/
struct tcphdr
{
u_int16_t th_sport; /* source port */
u_int16_t th_dport; /* destination port */
tcp_seq th_seq; /* sequence number */
tcp_seq th_ack; /* acknowledgement number */
# if __BYTE_ORDER == __LITTLE_ENDIAN
u_int8_t th_x2:4; /* (unused) */
u_int8_t th_off:4; /* data offset */
# endif
# if __BYTE_ORDER == __BIG_ENDIAN
u_int8_t th_off:4; /* data offset */
u_int8_t th_x2:4; /* (unused) */
# endif
u_int8_t th_flags;
# define TH_FIN 0x01
# define TH_SYN 0x02
# define TH_RST 0x04
# define TH_PUSH 0x08
# define TH_ACK 0x10
# define TH_URG 0x20
u_int16_t th_win; /* window */
u_int16_t th_sum; /* checksum */
u_int16_t th_urp; /* urgent pointer */
__extension__ union
{
struct
{
u_int16_t th_sport; /* source port */
u_int16_t th_dport; /* destination port */
tcp_seq th_seq; /* sequence number */
tcp_seq th_ack; /* acknowledgement number */
# if __BYTE_ORDER == __LITTLE_ENDIAN
u_int8_t th_x2:4; /* (unused) */
u_int8_t th_off:4; /* data offset */
# endif
# if __BYTE_ORDER == __BIG_ENDIAN
u_int8_t th_off:4; /* data offset */
u_int8_t th_x2:4; /* (unused) */
# endif
u_int8_t th_flags;
# define TH_FIN 0x01
# define TH_SYN 0x02
# define TH_RST 0x04
# define TH_PUSH 0x08
# define TH_ACK 0x10
# define TH_URG 0x20
u_int16_t th_win; /* window */
u_int16_t th_sum; /* checksum */
u_int16_t th_urp; /* urgent pointer */
};
struct
{
u_int16_t source;
u_int16_t dest;
u_int32_t seq;
u_int32_t ack_seq;
# if __BYTE_ORDER == __LITTLE_ENDIAN
u_int16_t res1:4;
u_int16_t doff:4;
u_int16_t fin:1;
u_int16_t syn:1;
u_int16_t rst:1;
u_int16_t psh:1;
u_int16_t ack:1;
u_int16_t urg:1;
u_int16_t res2:2;
# elif __BYTE_ORDER == __BIG_ENDIAN
u_int16_t doff:4;
u_int16_t res1:4;
u_int16_t res2:2;
u_int16_t urg:1;
u_int16_t ack:1;
u_int16_t psh:1;
u_int16_t rst:1;
u_int16_t syn:1;
u_int16_t fin:1;
# else
# error "Adjust your <bits/endian.h> defines"
# endif
u_int16_t window;
u_int16_t check;
u_int16_t urg_ptr;
};
};
};
# else /* !__FAVOR_BSD */
struct tcphdr
{
u_int16_t source;
u_int16_t dest;
u_int32_t seq;
u_int32_t ack_seq;
# if __BYTE_ORDER == __LITTLE_ENDIAN
u_int16_t res1:4;
u_int16_t doff:4;
u_int16_t fin:1;
u_int16_t syn:1;
u_int16_t rst:1;
u_int16_t psh:1;
u_int16_t ack:1;
u_int16_t urg:1;
u_int16_t res2:2;
# elif __BYTE_ORDER == __BIG_ENDIAN
u_int16_t doff:4;
u_int16_t res1:4;
u_int16_t res2:2;
u_int16_t urg:1;
u_int16_t ack:1;
u_int16_t psh:1;
u_int16_t rst:1;
u_int16_t syn:1;
u_int16_t fin:1;
# else
# error "Adjust your <bits/endian.h> defines"
# endif
u_int16_t window;
u_int16_t check;
u_int16_t urg_ptr;
};
# endif /* __FAVOR_BSD */
enum
{
TCP_ESTABLISHED = 1,

33
sysdeps/gnu/netinet/udp.h
View File

@ -52,27 +52,28 @@
/* UDP header as specified by RFC 768, August 1980. */
#ifdef __FAVOR_BSD
struct udphdr
{
u_int16_t uh_sport; /* source port */
u_int16_t uh_dport; /* destination port */
u_int16_t uh_ulen; /* udp length */
u_int16_t uh_sum; /* udp checksum */
__extension__ union
{
struct
{
u_int16_t uh_sport; /* source port */
u_int16_t uh_dport; /* destination port */
u_int16_t uh_ulen; /* udp length */
u_int16_t uh_sum; /* udp checksum */
};
struct
{
u_int16_t source;
u_int16_t dest;
u_int16_t len;
u_int16_t check;
};
};
};
#else
struct udphdr
{
u_int16_t source;
u_int16_t dest;
u_int16_t len;
u_int16_t check;
};
#endif
/* UDP socket options */
#define UDP_CORK 1 /* Never send partially complete segments. */
#define UDP_ENCAP 100 /* Set the socket to accept