[PATCH RESEND v11 11/13] um: change machine name for uname output

[Hajime Tazaki <thehajime@gmail.com>]

This commit tries to display MMU/!MMU mode from the output of uname(2)
so that users can distinguish which mode of UML is running right now.

Signed-off-by: Hajime Tazaki <thehajime@gmail.com>
---
 arch/um/Makefile        | 6 ++++++
 arch/um/os-Linux/util.c | 3 ++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/um/Makefile b/arch/um/Makefile
index 5371c9a1b11e..9bc8fc149514 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -153,6 +153,12 @@ export CFLAGS_vmlinux := $(LINK-y) $(LINK_WRAPS) $(LD_FLAGS_CMDLINE) $(CC_FLAGS_
 CLEAN_FILES += linux x.i gmon.out
 MRPROPER_FILES += $(HOST_DIR)/include/generated
 
+ifeq ($(CONFIG_MMU),y)
+UTS_MACHINE := "um"
+else
+UTS_MACHINE := "um\(nommu\)"
+endif
+
 archclean:
 	@find . \( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \
 		-o -name '*.gcov' \) -type f -print | xargs rm -f
diff --git a/arch/um/os-Linux/util.c b/arch/um/os-Linux/util.c
index 4193e04d7e4a..20421e9f0f77 100644
--- a/arch/um/os-Linux/util.c
+++ b/arch/um/os-Linux/util.c
@@ -65,7 +65,8 @@ void setup_machinename(char *machine_out)
 	}
 # endif
 #endif
-	strcpy(machine_out, host.machine);
+	strcat(machine_out, "/");
+	strcat(machine_out, host.machine);
 }
 
 void setup_hostinfo(char *buf, int len)
-- 
2.43.0