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newlib/.../getreent.c: Allow to be provided by host and do so for RTEMS 

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 commit is contained in:
Joel Sherrill 2017-10-11 07:57:44 -05:00 committed by Corinna Vinschen
parent 181fe5d2ed
commit b1a388799d
2 changed files with 10 additions and 2 deletions
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4
newlib/configure.host
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@ -586,7 +586,7 @@ case "${host}" in
default_newlib_io_long_double="yes"
default_newlib_io_pos_args="yes"
CC="${CC} -I${cygwin_srcdir}/include"
newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DSIGNAL_PROVIDED -D_COMPILING_NEWLIB -DHAVE_BLKSIZE -DHAVE_FCNTL -DMALLOC_PROVIDED"
newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DGETREENT_PROVIDED -DSIGNAL_PROVIDED -D_COMPILING_NEWLIB -DHAVE_BLKSIZE -DHAVE_FCNTL -DMALLOC_PROVIDED"
syscall_dir=syscalls
;;
*-*-phoenix*)
@ -605,7 +605,7 @@ case "${host}" in
default_newlib_io_long_long="yes"
default_newlib_io_c99_formats="yes"
newlib_cflags="${newlib_cflags} -D_COMPILING_NEWLIB"
newlib_cflags="${newlib_cflags} -DCLOCK_PROVIDED -DMALLOC_PROVIDED -DEXIT_PROVIDED -DSIGNAL_PROVIDED -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_NANOSLEEP -DHAVE_BLKSIZE -DHAVE_FCNTL -DHAVE_ASSERT_FUNC"
newlib_cflags="${newlib_cflags} -DCLOCK_PROVIDED -DMALLOC_PROVIDED -DEXIT_PROVIDED -DSIGNAL_PROVIDED -DGETREENT_PROVIDED -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_NANOSLEEP -DHAVE_BLKSIZE -DHAVE_FCNTL -DHAVE_ASSERT_FUNC"
# turn off unsupported items in posix directory
newlib_cflags="${newlib_cflags} -D_NO_GETLOGIN -D_NO_GETPWENT -D_NO_GETUT -D_NO_GETPASS -D_NO_SIGSET -D_NO_WORDEXP -D_NO_POPEN -D_NO_POSIX_SPAWN"
;;

8
newlib/libc/reent/getreent.c
View File

@ -1,5 +1,11 @@
/* default reentrant pointer when multithread enabled */
#ifdef GETREENT_PROVIDED
int _dummy_getreent;
#else
#include <_ansi.h>
#include <reent.h>
@ -12,3 +18,5 @@ _DEFUN_VOID(__getreent)
{
return _impure_ptr;
}
#endif