Conditionally provide default __getreent() implementation only if
_REENT_THREAD_LOCAL is not defined. If struct _reent is replaced by
dedicated thread-local objects neither the structure nor _impure_ptr is
available.
RTEMS provides the option to have a global or per-thread reentrancy
as part of application configuration. As part of this, RTEMS provides
the implementation of __getreent() as appropriate. Allow the target
to determine if this method is present in libc.a.
This reverts commit 4de8596. It worked around a problem which was
actually introduced by patch 10a30e7 a few weeks ago. Rather than
adding special code to the newlib version of __getreent, the followup
patch reinstantiates the original, Cygwin-only implementation of
__getreent.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Signed-off-by: Stefan Assmann <sassmann@redhat.com>
So far the lib function __getreent always returned _impure_ptr. On Cygwin
this is only correct after _impure_ptr got initialized. The inline
function in include/cygwin/config.h always returns the right _reent ptr,
though.
After introducing per-thread locales, the __getreent function is called
prior to initialization of _impure_ptr (from dll_crt0_0) to access the
locale pointer, which leads to a crash.
Fix the __getreent lib function for Cygwin to return the correct _reent
pointer all the time. Rename inline function to __inline_getreent
and introduce a macro __getreent calling the inline function. Change
the lib function __getreent to call __inline_getreent on Cygwin.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Makefile.am: Copy and install headers from sys/machine/include
directory. Also pass $toollibdir to lower-level directories.
* Makefile.in: Regenerated.
* libc/include/stdio.h[!_REENT_ONLY]: Change stdin, stdout, and
stderr to use _REENT macro instead of _impure_ptr directly.
* libc/include/sys/config.h[__i386__][__linux__]: Define
__DYNAMIC_REENT__.
* libc/include/sys/reent.h[!_REENT_ONLY]: Change _REENT macro to be
call to __getreent() function if !__SINGLE_THREAD__ and
__DYNAMIC_REENT__ is set.
* libc/reent/Makefile.am: Add support for getreent.c.
* libc/reent/Makefile.in: Regenerated.
* libc/string/strerror.c: Add check if EOPNOTSUPP and ENOTSUP are same.
* libc/sys/linux/Makefile.am: Add support for new files.
* libc/sys/linux/configure.in: Add $EXTRA_DIRS variable.
* libc/sys/linux/Makefile.in: Regenerated.
* libc/sys/linux/configure: Ditto.
* libc/sys/linux/io.c: Add poll syscall. Also weak-alias
__close, __read, __write, __poll, __open, __lseek, __fcntl from
their __libc_ counterparts.
* libc/sys/linux/io64.c: Add __libc_ prefix to lseek64 and open64
and weak-alias to regular names.
* libc/sys/linux/pread64.c: Rename to __libc_pread64 and weak-alias
to pread64 and __pread64.
* libc/sys/linux/process.c: Weak_alias __libc_getpid to __getpid.
* libc/sys/linux/pwrite64.c: Rename to __libc_pwrite64 and
weak-alias to pwrite64.
* libc/sys/linux/sched.c: Weak-alias __libc_sched_getparam,
__libc_sched_getscheduler, __libc_sched_get_priority_max,
__libc_sched_get_priority_min, and __libc_sched_setschedule to
name with __ instead of __libc_.
* libc/sys/linux/siglongjmp.c: Include <machine/weakalias.h>.
Rename siglongjmp to __libc_siglongjmp and weak-alias to siglongjmp.
Call __libc_longjmp instead of longjmp, from __libc_siglongjmp.
* libc/sys/linux/signal.c: Rename raise to __libc_raise and weak-alias
to raise.
* libc/sys/linux/socket.c: Weak-alias __libc_connect to __connect and
__libc_send to __send.
* libc/sys/linux/time.c: Weak-alias __libc_gettimeofday to
__gettimeofday.
* libc/sys/linux/wait.c: Rename wait to __libc_wait and weak-alias
it to wait. Rename wait3 to __libc_wait3 and weak-alias it to wait3.
* libc/sys/linux/include/setjmp.h: Use __jmp_buf in sigjmp_buf
type and typedef __jmp_buf to jmp_buf.
* libc/sys/linux/machine/i386/Makefile.am: Add syscalls.c and
setjmp.S.
* libc/sys/linux/machine/i386/Makefile.in: Regenerated.
* libc/sys/linux/machine/i386/crt0.c: Add support to clear .bss
section.
* libc/sys/linux/machine/i386/socketcall.h: Change to use __libc_
prefix for function macros and then use weak_alias() to regular names.
* libc/sys/linux/machine/i386/syscall.h: Ditto.
* libc/sys/linux/sys/errno.h: Define EOPNOTSUP to be ENOTSUP.
* libc/sys/linux/sys/stdio.h: Define _flockfile and _funlockfile
to be flockfile() and funlockfile() respectively.
* libc/sys/linux/sys/types.h
* libc/reent/getreent.c: New file.
* libc/sys/linux/flockfile.c: Ditto.
* libc/sys/linux/funlockfile.c: Ditto.
* libc/sys/linux/getreent.c: Ditto.
* libc/sys/linux/pread.c: Ditto.
* libc/sys/linux/pwrite.c: Ditto.
* libc/sys/linux/raise.c: Ditto.
* libc/sys/linux/system.c: Ditto.
* libc/sys/linux/tcdrain.c: Ditto.
* libc/sys/linux/machine/i386/i386mach.h: Ditto.
* libc/sys/linux/machine/i386/setjmp.S: Ditto.
* libc/sys/linux/machine/i386/syscalls.c: Ditto.
* libc/sys/linux/machine/i386/weakalias.h: Ditto.
* libc/sys/linux/machine/i386/include/setjmp.h: Ditto.
Pekka Seppänen
Yaakov Selkowitz
Joel Sherrill
Corinna Vinschen
Brian Dessent
Jeff Johnston