make ASan a compile time option

Fix check for render realloc.
2025-11-22 23:27:34 -08:00 · 2025-11-22 12:50:22 -08:00
2 changed files with 11 additions and 2 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,7 +6,16 @@ set(KE_VERSION "1.0.10")

 set(CMAKE_C_FLAGS "-Wall -Wextra -pedantic -Wshadow -Werror -std=c99 -g")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_DEFAULT_SOURCE -D_XOPEN_SOURCE")
+
+# Optionally enable AddressSanitizer (ASan)
+option(ENABLE_ASAN "Enable AddressSanitizer for builds" OFF)
+
+if (ENABLE_ASAN)
+    message(STATUS "ASan enabled")
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address -fno-omit-frame-pointer")
+    # Ensure the sanitizer is linked too (especially important on some platforms)
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=address")
+endif()


 # Add executable
--- a/main.c
+++ b/main.c
@@ -364,7 +364,7 @@ erow_update(struct erow *row)
 		}
 	}

-	if (row->rsize) {
+	if (row->rsize || row->render != NULL) {
 		free(row->render);
 		row->rsize = 0;
 	}
Author	SHA1	Message	Date
Kyle Isom	fb02f37512	make ASan a compile time option	2025-11-22 23:27:34 -08:00
Kyle Isom	1722dbee0b	Fix check for render realloc.	2025-11-22 12:50:22 -08:00