[libc] Add localtime_r to baremetal entrypoints (#166677)

Author: Prabhuk

libc/config/baremetal/aarch64/entrypoints.txt

@@ -269,9 +269,8 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.time.difftime
     libc.src.time.gmtime
     libc.src.time.gmtime_r
-    # TODO: Re-enable these when tests aren't broken.
-    # libc.src.time.localtime
-    # libc.src.time.localtime_r
+    libc.src.time.localtime
+    libc.src.time.localtime_r
     libc.src.time.mktime
     libc.src.time.strftime
     libc.src.time.strftime_l

libc/config/baremetal/arm/entrypoints.txt

@@ -269,6 +269,8 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.time.difftime
     libc.src.time.gmtime
     libc.src.time.gmtime_r
+    libc.src.time.localtime
+    libc.src.time.localtime_r
     libc.src.time.mktime
     libc.src.time.strftime
     libc.src.time.strftime_l

libc/config/baremetal/riscv/entrypoints.txt

@@ -269,6 +269,8 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.time.difftime
     libc.src.time.gmtime
     libc.src.time.gmtime_r
+    libc.src.time.localtime
+    libc.src.time.localtime_r
     libc.src.time.mktime
     libc.src.time.strftime
     libc.src.time.strftime_l

libc/src/time/baremetal/CMakeLists.txt

@@ -24,11 +24,11 @@ add_entrypoint_object(
   localtime
   SRCS
     localtime.cpp
+    ../time_utils.cpp
   HDRS
     ../localtime.h
-    time_utils.h
+    ../time_utils.h
   DEPENDS
-    .time_utils
     libc.hdr.types.struct_tm
     libc.hdr.types.time_t
 )
@@ -37,11 +37,11 @@ add_entrypoint_object(
   localtime_r
   SRCS
     localtime_r.cpp
+    ../time_utils.cpp
   HDRS
     ../localtime.h
-    time_utils.h
+    ../time_utils.h
   DEPENDS
-    .time_utils
     libc.hdr.types.struct_tm
     libc.hdr.types.time_t
 )