baselibc: Add option to enable extra debugging for malloc/free

apache · Oct 16, 2024 · e43465a · e43465a
1 parent 08847c3
commit e43465a
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Showing 2 changed files with 9 additions and 0 deletions.
diff --git a/libc/baselibc/pkg.yml b/libc/baselibc/pkg.yml
@@ -34,5 +34,8 @@ pkg.init.BASELIBC_THREAD_SAFE_HEAP_ALLOCATION:
 pkg.cflags:
     - -fno-builtin-malloc
 
+pkg.cflags.BASELIBC_DEBUG_MALLOC:
+    - -DDEBUG_MALLOC
+
 pkg.lflags:
     - -umain
diff --git a/libc/baselibc/syscfg.yml b/libc/baselibc/syscfg.yml
@@ -41,3 +41,9 @@ syscfg.defs:
         description: >
             Set to 1 if project requires malloc/calloc/free to be thread safe.
         value: 0
+
+    BASELIBC_DEBUG_MALLOC:
+        description: >
+            Set to 1 to enable extra debugging for malloc/free calls.
+            This will e.g. assert on double-free.
+        value: 0