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authorUlrich Drepper <drepper@redhat.com>1998-08-08 20:02:34 +0000
committerUlrich Drepper <drepper@redhat.com>1998-08-08 20:02:34 +0000
commit7ce241a03e2c0b49482d9d05c8ddb765e89a01d9 (patch)
treee8278ec57d7c434f389dc57afe24f66f93c06ced /bits/byteswap.h
parent9fbffc467639130663cc1959a59eb980b9207210 (diff)
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Update.
1998-07-31 17:59 Ulrich Drepper <drepper@cygnus.com> * sysdeps/generic/bits/byteswap.h: Fix problems with side effects. * manual/filesys.texi: Document truncate and ftruncate. Patch by Michael Deutschmann <michael@talamasca.wkpowerlink.com>. * shadow/putspent.c: Lock stream while generating the output. * sunrpc/clnt_unix.c: Use ucred instead of cmsgcred again. (__msgwrite): Rewrite accordingly. * sunrpc/svc_unix.c: Likewise. * sysdeps/unix/sysv/linux/Dist: Remove __recvmsg.S and __sendmsg.S. * sysdeps/unix/sysv/linux/Makefile [$(subdir)==socket] (sysdep_routines): Remove __sendmsg and __recvmsg. * sysdeps/unix/sysv/linux/__recvmsg.S: Removed. * sysdeps/unix/sysv/linux/__sendmsg.S: Removed. * sysdeps/unix/sysv/linux/recvmsg.c: Removed. * sysdeps/unix/sysv/linux/sendmsg.c: Removed. * sysdeps/unix/sysv/linux/recvmsg.S: New file. * sysdeps/unix/sysv/linux/sendmsg.S: New file. * sysdeps/unix/sysv/linux/bits/socket.h: Define SCM_CREDENTIALS and struct ucred. Remove struct cmsgcred. Patches by Thorsten Kukuk. 1998-08-03 Andreas Jaeger <aj@arthur.rhein-neckar.de> * inet/rcmd.c (__ivaliduser): Allow '#' as comment character. 1998-08-08 14:42 Ulrich Drepper <drepper@cygnus.com> * argp/argp-help.c: Prepare to be used outside glibc without gcc by adding usual alloca cruft. Reported by Eleftherios Gkioulekas <lf@amath.washington.edu>. 1998-04-05 Jim Meyering <meyering@ascend.com> * lib/regex.c (WIDE_CHAR_SUPPORT): Define. This now depends on HAVE_BTOWC so systems that lack btowc (like solaris-2.5.1) don't lose. 1998-08-07 Mark Kettenis <kettenis@phys.uva.nl> * sysdeps/generic/bits/sigaction.h: Remove definition of SA_DISABLE. * sysdeps/generic/bits/sigstack.h: Define SS_DISABLE, SS_ONSTACK, MINSIGSTKZ and SIGSTKSZ. Definitions match BSD. * hurd/sigunwind.c (_hurdsig_longjmp_from_handler): Use SS_ONSTACK instead of SA_ONSTACK. * sysdeps/mach/hurd/sigaltstack.c (__sigaltstack): Renamed from sigaltstack, and created a weak alias. Use SS_DISABLE and SS_ONSTACK instead of SA_DISABLE and SA_ONSTACK. * sysdeps/mach/hurd/sigstack.c (sigstack): Use SS_ONSTACK instead of SA_ONSTACK. Call __sigaltstack instead of sigaltstack. * sysdeps/mach/hurd/i386/sigreturn.c (__sigreturn): Use SS_ONSTACK instead of SA_ONSTACK. * sysdeps/mach/hurd/alpha/sigreturn.c (__sigreturn): Likewise. * sysdeps/mach/hurd/mips/sigreturn.c (__sigreturn): Likewise. * sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler): Use SS_DISABLE instead of SA_DISABLE. Use SS_ONSTACK instead of SA_ONSTACK where appropriate. * sysdeps/mach/hurd/alpha/trampoline.c (_hurd_setup_sighandler): Likewise. * sysdeps/mach/hurd/hppa/trampoline.c (_hurd_setup_sighandler): Likewise. * sysdeps/mach/hurd/mips/trampoline.c (_hurd_setup_sighandler): Likewise. * manual/signal.texi (Signal Stack): Talk about SS_DISABLE and SS_ONSTACK instead of SA_DISABLE and SA_ONSTACK in discussion of the `ss_flags' member of `struct sigaltstack'. 1998-08-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * libio/Makefile (routines) [$(versioning)=yes]: Add oldtmpfile. (shared-only-routines): Likewise. * libio/oldtmpfile.c: New file * stdio-common/tmpfile.c: Use __fdopen and __close. [USE_IN_LIBIO]: Use _IO_fdopen instead of _IO_new_fdopen. Put tmpfile on symbol version GLIBC_2.1. * stdio-common/tmpfile64.c: Use __fdopen and __close. [USE_IN_LIBIO]: Use _IO_fdopen instead of _IO_new_fdopen. * stdio-common/Version [GLIBC_2.1]: Add tmpfile. * stdio-common/tempnam.c: Use __strdup instead of strdup. * sysdeps/posix/fdopen.c: Define __fdopen and make fdopen weak alias. * sysdeps/generic/fdopen.c: Likewise. * sysdeps/mach/hurd/fdopen.c: Likewise. * stdio/stdio.h: Declare __fdopen. * sunrpc/openchild.c: Use __fdopen instead of fdopen. [USE_IN_LIBIO]: Map __fdopen to _IO_fdopen. * sysdeps/posix/tempname.c (__gen_tempname): Don't bother checking __stub_open64, it is never defined. 1998-08-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * libio/iofopen64.c: Fix typo. Avoid unnessary casts. * libio/iopopen.c: Unlink file before freeing it if command creation failed. Avoid unnessary casts. * libio/iofdopen.c: Avoid unnecessary cast. * pwd/fgetpwent_r.c [USE_IN_LIBIO]: Map funlockfile to _IO_funlockfile. * pwd/fgetspent_r.c [USE_IN_LIBIO]: Likewise. 1998-08-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * grp/grp.h, pwd/pwd.h: Don't declare __grpopen, __grpread, __grpalloc, __grpscan and the corresponding pwd functions, they were removed long ago. 1998-08-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * math/libm-test.c (csqrt_test): Adjust epsilons. (casinh_test): Likewise. 1998-08-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * posix/globtest.sh: Fix typo. Remove second test output file. 1998-08-07 Cristian Gafton <gafton@redhat.com> * pwd/putpwent.c (putpwent): Avoid writting (none) in the passwd file. * shadow/putspent.c (putspent): Likewise. * grp/putgrent.c: New file. * grp/Makefile (routines): Add putgrent. * grp/Versions [GLIBC_2.1]: Add putgrent. * grp/grp.h: Add putgrent prototype. 1998-08-04 19:33 Ulrich Drepper <drepper@cygnus.com> * elf/elf.h: More ELF definitions.
Diffstat (limited to 'bits/byteswap.h')
-rw-r--r--bits/byteswap.h33
1 files changed, 27 insertions, 6 deletions
diff --git a/bits/byteswap.h b/bits/byteswap.h
index 04a5efe..a5dd4a7 100644
--- a/bits/byteswap.h
+++ b/bits/byteswap.h
@@ -1,5 +1,5 @@
/* Macros to swap the order of bytes in integer values.
- Copyright (C) 1997 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -22,13 +22,34 @@
#endif
/* Swap bytes in 16 bit value. */
-#define __bswap_16(x) \
- ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
+#ifdef __GNUC__
+# define __bswap_16(x) \
+ (__extension__ \
+ ({ unsigned short int __bsx = (x); \
+ ((((__bsx) >> 8) & 0xff) | (((__bsx) & 0xff) << 8)); }))
+#else
+static __inline unsigned short int
+__bswap16 (unsigned short int x)
+{
+ return ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8));
+}
+#endif
/* Swap bytes in 32 bit value. */
-#define __bswap_32(x) \
- ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
- (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
+#ifdef __GNUC__
+# define __bswap_32(x) \
+ (__extension__ \
+ ({ unsigned int __bsx = (x); \
+ ((((__bsx) & 0xff000000) >> 24) | (((__bsx) & 0x00ff0000) >> 8) | \
+ (((__bsx) & 0x0000ff00) << 8) | (((__bsx) & 0x000000ff) << 24)); }))
+#else
+static __inline unsigned int
+__bswap32 (unsigned int x)
+{
+ return ((((__bsx) & 0xff000000) >> 24) | (((__bsx) & 0x00ff0000) >> 8) |
+ (((__bsx) & 0x0000ff00) << 8) | (((__bsx) & 0x000000ff) << 24));
+}
+#endif
#if defined __GNUC__ && __GNUC__ >= 2
/* Swap bytes in 64 bit value. */