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authorWaldemar Brodkorb <wbx@uclibc-ng.org>2018-02-02 02:25:10 +0000
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2018-02-03 19:29:56 +0000
commit5d5338562efa4c5e32c7fe1b64bc351f7e5e464d (patch)
tree8d7356db62f50f4d9d53cbdba271f1ade518f8bd
parent7cc754bc93eafa78695ec03bb0e4e8256d52c76d (diff)
add libc version compatibility
-rw-r--r--include/gnu/libc-version.h33
-rw-r--r--libc/misc/internals/Makefile.in2
-rw-r--r--libc/misc/internals/version.c65
-rw-r--r--libc/misc/internals/version.h4
-rw-r--r--libpthread/nptl/sysdeps/pthread/uClibc-glue.h4
5 files changed, 103 insertions, 5 deletions
diff --git a/include/gnu/libc-version.h b/include/gnu/libc-version.h
new file mode 100644
index 000000000..8ce3d1bf0
--- /dev/null
+++ b/include/gnu/libc-version.h
@@ -0,0 +1,33 @@
+/* Interface to GNU libc specific functions for version information.
+ Copyright (C) 1998-2018 Free Software Foundation, Inc.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _GNU_LIBC_VERSION_H
+#define _GNU_LIBC_VERSION_H 1
+
+#include <features.h>
+
+__BEGIN_DECLS
+
+/* Return string describing release status of currently running GNU libc. */
+extern const char *gnu_get_libc_release (void) __THROW;
+
+/* Return string describing version of currently running GNU libc. */
+extern const char *gnu_get_libc_version (void) __THROW;
+
+__END_DECLS
+
+#endif /* gnu/libc-version.h */
diff --git a/libc/misc/internals/Makefile.in b/libc/misc/internals/Makefile.in
index ce7f75af5..a8e4e36f9 100644
--- a/libc/misc/internals/Makefile.in
+++ b/libc/misc/internals/Makefile.in
@@ -8,7 +8,7 @@
subdirs += libc/misc/internals
CSRC-y := tempname.c errno.c h_errno.c __errno_location.c __h_errno_location.c \
- parse_config.c
+ parse_config.c version.c
MISC_INTERNALS_DIR := $(top_srcdir)libc/misc/internals
MISC_INTERNALS_OUT := $(top_builddir)libc/misc/internals
diff --git a/libc/misc/internals/version.c b/libc/misc/internals/version.c
new file mode 100644
index 000000000..4fa11e208
--- /dev/null
+++ b/libc/misc/internals/version.c
@@ -0,0 +1,65 @@
+/* Copyright (C) 1992-2018 Free Software Foundation, Inc.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include "version.h"
+#include <gnu/libc-version.h>
+
+static const char __libc_release[] = RELEASE;
+static const char __libc_version[] = VERSION;
+
+static const char banner[] =
+"uClibc-ng "RELEASE" release version "VERSION".\n\
+Copyright (C) 2018 Waldemar Brodkorb <wbx@uclibc-ng.org>\n\
+This is free software; see the source for copying conditions.\n\
+There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\
+PARTICULAR PURPOSE.\n\
+Compiled by GNU CC version "__VERSION__".\n";
+
+#include <unistd.h>
+
+extern void __libc_print_version (void) attribute_hidden;
+void
+__libc_print_version (void)
+{
+ write (STDOUT_FILENO, banner, sizeof banner - 1);
+}
+
+extern const char *__gnu_get_libc_release (void);
+const char *
+__gnu_get_libc_release (void)
+{
+ return __libc_release;
+}
+weak_alias (__gnu_get_libc_release, gnu_get_libc_release)
+
+extern const char *__gnu_get_libc_version (void);
+const char *
+__gnu_get_libc_version (void)
+{
+ return __libc_version;
+}
+weak_alias (__gnu_get_libc_version, gnu_get_libc_version)
+
+/* This function is the entry point for the shared object.
+ Running the library as a program will get here. */
+
+extern void __libc_main (void) __attribute__ ((noreturn));
+void
+__libc_main (void)
+{
+ __libc_print_version ();
+ _exit (0);
+}
diff --git a/libc/misc/internals/version.h b/libc/misc/internals/version.h
new file mode 100644
index 000000000..2d38baf04
--- /dev/null
+++ b/libc/misc/internals/version.h
@@ -0,0 +1,4 @@
+/* This file just defines the current version number of libc. */
+
+#define RELEASE "release"
+#define VERSION __stringify(__UCLIBC_MAJOR__) "." __stringify(__UCLIBC_MINOR__) "." __stringify(__UCLIBC_SUBLEVEL__)
diff --git a/libpthread/nptl/sysdeps/pthread/uClibc-glue.h b/libpthread/nptl/sysdeps/pthread/uClibc-glue.h
index 46f8f878c..5f246dd3e 100644
--- a/libpthread/nptl/sysdeps/pthread/uClibc-glue.h
+++ b/libpthread/nptl/sysdeps/pthread/uClibc-glue.h
@@ -39,8 +39,4 @@ extern int __cxa_atexit (void (*func) (void *), void *arg, void *d);
# define __uselocale(x) ((void)0)
#endif
-/* Use a funky version in a probably vein attempt at preventing gdb
- * from dlopen()'ing glibc's libthread_db library... */
-#define VERSION __stringify(__UCLIBC_MAJOR__) "." __stringify(__UCLIBC_MINOR__) "." __stringify(__UCLIBC_SUBLEVEL__)
-
#endif