diff --git a/arch/cpu/arm/common/dbg-io/dbg-printf.c b/os/lib/dbg-io/printf.c
similarity index 100%
rename from arch/cpu/arm/common/dbg-io/dbg-printf.c
rename to os/lib/dbg-io/printf.c
diff --git a/arch/cpu/arm/common/dbg-io/dbg-putchar.c b/os/lib/dbg-io/putchar.c
similarity index 100%
rename from arch/cpu/arm/common/dbg-io/dbg-putchar.c
rename to os/lib/dbg-io/putchar.c
diff --git a/arch/cpu/arm/common/dbg-io/dbg-puts.c b/os/lib/dbg-io/puts.c
similarity index 100%
rename from arch/cpu/arm/common/dbg-io/dbg-puts.c
rename to os/lib/dbg-io/puts.c
diff --git a/arch/cpu/arm/common/dbg-io/dbg-snprintf.c b/os/lib/dbg-io/snprintf.c
similarity index 100%
rename from arch/cpu/arm/common/dbg-io/dbg-snprintf.c
rename to os/lib/dbg-io/snprintf.c
diff --git a/arch/cpu/arm/common/dbg-io/dbg-sprintf.c b/os/lib/dbg-io/sprintf.c
similarity index 100%
rename from arch/cpu/arm/common/dbg-io/dbg-sprintf.c
rename to os/lib/dbg-io/sprintf.c
diff --git a/arch/cpu/arm/common/dbg-io/strformat.c b/os/lib/dbg-io/strformat.c
similarity index 100%
rename from arch/cpu/arm/common/dbg-io/strformat.c
rename to os/lib/dbg-io/strformat.c
diff --git a/arch/cpu/arm/common/dbg-io/strformat.h b/os/lib/dbg-io/strformat.h
similarity index 100%
rename from arch/cpu/arm/common/dbg-io/strformat.h
rename to os/lib/dbg-io/strformat.h