diff --git a/libc/config/gpu/entrypoints.txt b/libc/config/gpu/entrypoints.txt
--- a/libc/config/gpu/entrypoints.txt
+++ b/libc/config/gpu/entrypoints.txt
@@ -82,10 +82,19 @@
 
     # stdio.h entrypoints
     libc.src.stdio.puts
+    libc.src.stdio.putc
+    libc.src.stdio.putchar
     libc.src.stdio.fputs
     libc.src.stdio.fread
+    libc.src.stdio.feof
+    libc.src.stdio.ferror
+    libc.src.stdio.fgetc
+    libc.src.stdio.fputc
     libc.src.stdio.fclose
     libc.src.stdio.fopen
+    libc.src.stdio.fwrite
+    libc.src.stdio.getchar
+    libc.src.stdio.getc
     libc.src.stdio.stdin
     libc.src.stdio.stdout
     libc.src.stdio.stderr
diff --git a/libc/docs/gpu/support.rst b/libc/docs/gpu/support.rst
--- a/libc/docs/gpu/support.rst
+++ b/libc/docs/gpu/support.rst
@@ -126,4 +126,13 @@
 fputs          |check|    |check|
 fclose         |check|    |check|
 fopen          |check|    |check|
+putc           |check|    |check|
+putchar        |check|    |check|
+feof           |check|
+ferror         |check|
+fgetc          |check|    |check|
+fputc          |check|    |check|
+fwrite         |check|    |check|
+getchar        |check|    |check|
+getc           |check|    |check|
 =============  =========  ============
diff --git a/libc/test/src/stdio/CMakeLists.txt b/libc/test/src/stdio/CMakeLists.txt
--- a/libc/test/src/stdio/CMakeLists.txt
+++ b/libc/test/src/stdio/CMakeLists.txt
@@ -233,7 +233,7 @@
     libc.src.stdio.fopen
 )
 
-add_libc_unittest(
+add_libc_test(
   putc_test
   SUITE
     libc_stdio_unittests
@@ -265,7 +265,7 @@
   )
 endif()
 
-add_libc_unittest(
+add_libc_test(
   fgetc_test
   SUITE
     libc_stdio_unittests