| Age | Commit message (Collapse) | Author |
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so interfaces needing it can get it.
* stdlib/errno.h (error_t): Move definition to...
* bits/types/error_t.h: ... new header.
* stdlib/Makefile (headers): Add bits/types/error_t.h.
* sysdeps/mach/hurd/bits/errno.h (error_t): Move definition to...
* sysdeps/mach/hurd/bits/types/error_t.h: ... new header.
* sysdeps/mach/hurd/errnos.awk (error_t): Likewise.
* hurd/hurd.h: Include <bits/types/error_t.h>
* hurd/hurd/fd.h: Include <bits/types/error_t.h>
* hurd/hurd/id.h: Include <errno.h> and <bits/types/error_t.h>
* hurd/hurd/lookup.h: Include <errno.h> and <bits/types/error_t.h>
* hurd/hurd/resource.h: Include <bits/types/error_t.h>
* hurd/hurd/signal.h: Include <bits/types/error_t.h>
* hurd/hurd/sigpreempt.h: Include <bits/types/error_t.h>
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* All files with FSF copyright notices: Update copyright dates
using scripts/update-copyrights.
* locale/programs/charmap-kw.h: Regenerated.
* locale/programs/locfile-kw.h: Likewise.
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This is fairly complicated, not because the users of __need_Emath and
__need_error_t have complicated requirements, but because the core
changes had a lot of fallout.
__need_error_t exists for gnulib compatibility in argz.h and argp.h.
error_t itself is a Hurdism, an enum containing all the E-constants,
so you can do 'p (error_t) errno' in gdb and get a symbolic value.
argz.h and argp.h use it for function return values, and they want to
fall back to 'int' when that's not available. There is no reason why
these nonstandard headers cannot just go ahead and include all of
errno.h; so we do that.
__need_Emath is defined only by .S files; what they _really_ need is
for errno.h to avoid declaring anything other than the E-constants
(e.g. 'extern int __errno_location(void);' is a syntax error in
assembly language). This is replaced with a check for __ASSEMBLER__ in
errno.h, plus a carefully documented requirement for bits/errno.h not
to define anything other than macros. That in turn has the
consequence that bits/errno.h must not define errno - fortunately, all
live ports use the same definition of errno, so I've moved it to
errno.h. The Hurd bits/errno.h must also take care not to define
error_t when __ASSEMBLER__ is defined, which involves repeating all of
the definitions twice, but it's a generated file so that's okay.
* stdlib/errno.h: Remove __need_Emath and __need_error_t logic.
Reorganize file. Declare errno here. When __ASSEMBLER__ is
defined, don't declare anything other than the E-constants.
* include/errno.h: Change conditional for exposing internal
declarations to (not _ISOMAC and not __ASSEMBLER__).
* bits/errno.h: Remove logic for __need_Emath. Document
requirements for a port-specific bits/errno.h.
* sysdeps/unix/sysv/linux/bits/errno.h
* sysdeps/unix/sysv/linux/alpha/bits/errno.h
* sysdeps/unix/sysv/linux/hppa/bits/errno.h
* sysdeps/unix/sysv/linux/mips/bits/errno.h
* sysdeps/unix/sysv/linux/sparc/bits/errno.h:
Add multiple-include guard and check against improper inclusion.
Remove __need_Emath logic. Don't declare errno here. Ensure all
constants are defined as simple integer literals. Consistent
formatting.
* sysdeps/mach/hurd/errnos.awk: Likewise. Only define error_t and
enum __error_t_codes if __ASSEMBLER__ is not defined.
* sysdeps/mach/hurd/bits/errno.h: Regenerate.
* argp/argp.h, string/argz.h: Don't define __need_error_t before
including errno.h.
* sysdeps/i386/i686/fpu/multiarch/s_cosf-sse2.S
* sysdeps/i386/i686/fpu/multiarch/s_sincosf-sse2.S
* sysdeps/i386/i686/fpu/multiarch/s_sinf-sse2.S
* sysdeps/x86_64/fpu/s_cosf.S
* sysdeps/x86_64/fpu/s_sincosf.S
* sysdeps/x86_64/fpu/s_sinf.S:
Just include errno.h; don't define __need_Emath or include
bits/errno.h directly.
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2002-07-19 Ulrich Drepper <drepper@redhat.com>
* configure.in: Add test for __thread support in compiler.
* config.h.in: Add HAVE___THREAD.
* Makefile (headers): Remove errno.h, sys/errno.h, and bits/errno.h.
* include/sys/errno.h: Moved to...
* stdlib/sys/errno.h: ...here. New file.
* stdlib/errno.h: New file. Moved from...
* include/errno.h: ...here. Changed into an internal header defining
libc-local things like __set_errno.
* stdlib/Makefile (headers): Add errno.h, sys/errno.h, and
bits/errno.h.
* elf/dl-minimal.c: Include <tls.h>. Define errno as thread-local
variable if USE_TLS && HAVE___THREAD. Don't define __errno_location
either.
* elf/rtld.c (_dl_start): Add code to initialize TLS for ld.so
from...
(_dl_start_final): ...here. Add code to initialize tls elements from
bootstrap_map.
* sysdeps/generic/errno-loc.c: Define errno as thread-local variable
if USE_TLS && HAVE___THREAD.
* sysdeps/generic/bits/errno.h: Remove __set_errno definition.
* sysdeps/mach/hurd/bits/errno.h: Likewise.
* sysdeps/standalone/arm/bits/errno.h: Likewise.
* sysdeps/standalone/bits/errno.h: Likewise.
* sysdeps/unix/bsd/bsd4.4/bits/errno.h: Likewise.
* sysdeps/unix/sysv/aix/bits/errno.h: Likewise.
* sysdeps/unix/sysv/hpux/bits/errno.h: Likewise.
* sysdeps/unix/sysv/linux/bits/errno.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/bits/errno.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/errno.h: Likewise.
* sysdeps/unix/sysv/sysv4/solaris2/bits/errno.h: Likewise.
* sysdeps/i386/dl-machine.c (elf_machine_rel) [RTLD_BOOTSTRAP]: Don't
use GL(dl_rtld_map), use map parameter.
* sysdeps/sh/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/unix/sysv/linux/i386/sysdep.S: Define errno in .tbss if
USE_TLS && HAVE___THREAD.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Unify SETUP_PIC_REG
definitions. If USE_TLS && HAVE___THREAD store errooor value using
TLS code sequence.
* sysdeps/unix/sysv/linux/i386/i686/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/getcwd.c: No real need to restore errno.
* sysdeps/unix/sysv/linux/grantpt.c: Likewise.
* sysdeps/unix/sysv/linux/internal_statvfs.c: Likewise.
* sysdeps/unix/sysv/linux/msgctl.c: Likewise.
* sysdeps/unix/sysv/linux/readv.c: Likewise.
* sysdeps/unix/sysv/linux/writev.c: Likewise.
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