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* [newlib-cygwin] Add --enable-newlib-global-stdio-streams
@ 2017-06-30 5:47 Sebastian Huber
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From: Sebastian Huber @ 2017-06-30 5:47 UTC (permalink / raw)
To: newlib-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=a254c82486fd405623f1655383ee67e96216a883
commit a254c82486fd405623f1655383ee67e96216a883
Author: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Thu Jun 29 07:28:08 2017 +0200
Add --enable-newlib-global-stdio-streams
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
Diff:
---
newlib/README | 6 ++++++
newlib/configure | 24 ++++++++++++++++++++++--
newlib/configure.in | 13 +++++++++++++
newlib/libc/include/sys/config.h | 6 ++++++
newlib/newlib.hin | 5 +++++
5 files changed, 52 insertions(+), 2 deletions(-)
diff --git a/newlib/README b/newlib/README
index ed8fb35..78f4de8 100644
--- a/newlib/README
+++ b/newlib/README
@@ -297,6 +297,12 @@ One feature can be enabled by specifying `--enable-FEATURE=yes' or
is not referenced.
Disabled by default.
+`--enable-newlib-global-stdio-streams'
+ Enable to move the stdio stream FILE objects out of struct _reent and make
+ them global. The stdio stream pointers of struct _reent are initialized
+ to point to the global stdio FILE stream objects.
+ Disabled by default.
+
`--enable-newlib-reent-small'
Enable small reentrant struct support.
Disabled by default.
diff --git a/newlib/configure b/newlib/configure
index de28c25..b2f0b33 100755
--- a/newlib/configure
+++ b/newlib/configure
@@ -795,6 +795,7 @@ enable_newlib_iconv_external_ccs
enable_newlib_atexit_dynamic_alloc
enable_newlib_global_atexit
enable_newlib_reent_small
+enable_newlib_global_stdio_streams
enable_newlib_fvwrite_in_streamio
enable_newlib_fseek_optimization
enable_newlib_wide_orient
@@ -1467,6 +1468,7 @@ Optional Features:
--disable-newlib-atexit-dynamic-alloc disable dynamic allocation of atexit entries
--enable-newlib-global-atexit enable atexit data structure as global
--enable-newlib-reent-small enable small reentrant struct support
+ --enable-newlib-global-stdio-streams enable global stdio streams
--disable-newlib-fvwrite-in-streamio disable iov in streamio
--disable-newlib-fseek-optimization disable fseek optimization
--disable-newlib-wide-orient Turn off wide orientation in streamio
@@ -2387,6 +2389,17 @@ else
newlib_reent_small=
fi
+# Check whether --enable-newlib-global-stdio-streams was given.
+if test "${enable_newlib_global_stdio_streams+set}" = set; then :
+ enableval=$enable_newlib_global_stdio_streams; case "${enableval}" in
+ yes) newlib_global_stdio_streams=yes;;
+ no) newlib_global_stdio_streams=no ;;
+ *) as_fn_error $? "bad value ${enableval} for newlib-global-stdio-streams option" "$LINENO" 5 ;;
+ esac
+else
+ newlib_global_stdio_streams=
+fi
+
# Check whether --enable-newlib-fvwrite-in-streamio was given.
if test "${enable_newlib_fvwrite_in_streamio+set}" = set; then :
enableval=$enable_newlib_fvwrite_in_streamio; if test "${newlib_fvwrite_in_streamio+set}" != set; then
@@ -11794,7 +11807,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 11797 "configure"
+#line 11810 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -11900,7 +11913,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 11903 "configure"
+#line 11916 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -12347,6 +12360,13 @@ _ACEOF
fi
+if test "${newlib_global_stdio_streams}" = "yes"; then
+cat >>confdefs.h <<_ACEOF
+#define _WANT_REENT_GLOBAL_STDIO_STREAMS 1
+_ACEOF
+
+fi
+
if test "${newlib_mb}" = "yes"; then
cat >>confdefs.h <<_ACEOF
#define _MB_CAPABLE 1
diff --git a/newlib/configure.in b/newlib/configure.in
index 354c07c..5b86ee8 100644
--- a/newlib/configure.in
+++ b/newlib/configure.in
@@ -136,6 +136,15 @@ AC_ARG_ENABLE(newlib-reent-small,
no) newlib_reent_small=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for newlib-reent-small option) ;;
esac], [newlib_reent_small=])dnl
+
+dnl Support --enable-newlib-global-stdio-streams
+AC_ARG_ENABLE(newlib-global-stdio-streams,
+[ --enable-newlib-global-stdio-streams enable global stdio streams],
+[case "${enableval}" in
+ yes) newlib_global_stdio_streams=yes;;
+ no) newlib_global_stdio_streams=no ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for newlib-global-stdio-streams option) ;;
+ esac], [newlib_global_stdio_streams=])dnl
dnl Support --disable-newlib-fvwrite-in-streamio
AC_ARG_ENABLE(newlib-fvwrite-in-streamio,
@@ -400,6 +409,10 @@ if test "${newlib_reent_small}" = "yes"; then
AC_DEFINE_UNQUOTED(_WANT_REENT_SMALL)
fi
+if test "${newlib_global_stdio_streams}" = "yes"; then
+AC_DEFINE_UNQUOTED(_WANT_REENT_GLOBAL_STDIO_STREAMS)
+fi
+
if test "${newlib_mb}" = "yes"; then
AC_DEFINE_UNQUOTED(_MB_CAPABLE)
AC_DEFINE_UNQUOTED(_MB_LEN_MAX,8)
diff --git a/newlib/libc/include/sys/config.h b/newlib/libc/include/sys/config.h
index ae8caff..e45aa54 100644
--- a/newlib/libc/include/sys/config.h
+++ b/newlib/libc/include/sys/config.h
@@ -276,6 +276,12 @@
#endif
#endif
+#ifdef _WANT_REENT_GLOBAL_STDIO_STREAMS
+#ifndef _REENT_GLOBAL_STDIO_STREAMS
+#define _REENT_GLOBAL_STDIO_STREAMS
+#endif
+#endif
+
/* If _MB_EXTENDED_CHARSETS_ALL is set, we want all of the extended
charsets. The extended charsets add a few functions and a couple
of tables of a few K each. */
diff --git a/newlib/newlib.hin b/newlib/newlib.hin
index 397bc9b..45c6831 100644
--- a/newlib/newlib.hin
+++ b/newlib/newlib.hin
@@ -79,6 +79,11 @@
/* Define if declare atexit data as global. */
#undef _REENT_GLOBAL_ATEXIT
+/* Define to move the stdio stream FILE objects out of struct _reent and make
+ them global. The stdio stream pointers of struct _reent are initialized to
+ point to the global stdio FILE stream objects. */
+#undef _WANT_REENT_GLOBAL_STDIO_STREAMS
+
/* Define if small footprint nano-formatted-IO implementation used. */
#undef _NANO_FORMATTED_IO
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2017-06-30 5:47 [newlib-cygwin] Add --enable-newlib-global-stdio-streams Sebastian Huber
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