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
@@ -55,10 +55,13 @@
     libc.src.string.strtok_r
 
     # stdlib.h entrypoints
+    libc.src.stdlib.abs
     libc.src.stdlib.atoi
     libc.src.stdlib.atof
     libc.src.stdlib.atol
     libc.src.stdlib.atoll
+    libc.src.stdlib.labs
+    libc.src.stdlib.llabs
     libc.src.stdlib.atexit
     libc.src.stdlib.strtod
     libc.src.stdlib.strtof
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
@@ -84,11 +84,14 @@
 =============  =========  ============
 Function Name  Available  RPC Required
 =============  =========  ============
+abs            |check|
 atoi           |check|
 atof           |check|
 atol           |check|
 atoll          |check|
 atexit         |check|
+labs           |check|
+llabs          |check|
 strtod         |check|
 strtof         |check|
 strtol         |check|