* move sHaikuRevision from uname.c into new system_revision.c

* add private function get_system_revision() for accessing the
  revision string
* adjust uname to use get_system_revision

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41479 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/system/system_revision.h

@@ -11,4 +11,18 @@
 #define SYSTEM_REVISION_LENGTH 128
 
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/** returns the system revision */
+const char* get_system_revision();
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
 #endif	/* _SYSTEM_SYSTEM_REVISION_H */

src/system/libroot/os/Jamfile

@@ -25,6 +25,7 @@ MergeObject os_main.o :
 	scheduler.c
 	sem.c
 	system_info.c
+	system_revision.c
 	team.c
 	thread.c
 	time.cpp

src/system/libroot/os/system_revision.c

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2011, Oliver Tappe <[email protected]>.
+ * Distributed under the terms of the MIT License.
+ */
+
+
+#include <system_revision.h>
+
+
+// Haiku SVN revision. Will be set when copying libroot.so to the image.
+// Lives in a separate section so that it can easily be found.
+static char sHaikuRevision[SYSTEM_REVISION_LENGTH]
+	__attribute__((section("_haiku_revision")));
+
+
+const char*
+get_system_revision()
+{
+	return sHaikuRevision;
+}

src/system/libroot/posix/sys/uname.c

@@ -16,17 +16,12 @@
 #include <system_revision.h>
 
 
-// Haiku SVN revision. Will be set when copying libroot.so to the image.
-// Lives in a separate section so that it can easily be found.
-static char sHaikuRevision[SYSTEM_REVISION_LENGTH]
-	__attribute__((section("_haiku_revision")));
-
-
 int
 uname(struct utsname *info)
 {
 	system_info systemInfo;
 	const char *platform;
+	const char *haikuRevision;
 
 	if (!info) {
 		errno = B_BAD_VALUE;
@@ -37,8 +32,9 @@ uname(struct utsname *info)
 
 	strlcpy(info->sysname, "Haiku", sizeof(info->sysname));
 
-	if (sHaikuRevision[0] != '\0')
-		snprintf(info->version, sizeof(info->version), "r%s ", sHaikuRevision);
+	haikuRevision = get_system_revision();
+	if (haikuRevision[0] != '\0')
+		snprintf(info->version, sizeof(info->version), "%s ", haikuRevision);
 	else
 		info->version[0] = '\0';
 	strlcat(info->version, systemInfo.kernel_build_date, sizeof(info->version));