fix(esp_timer): enable dump overflow test on linux

components/esp_timer/test_apps/main/CMakeLists.txt

@@ -23,3 +23,12 @@ idf_component_register(SRCS ${srcs}
                        PRIV_INCLUDE_DIRS "../../private_include" "../include"
                        PRIV_REQUIRES cmock test_utils esp_timer spi_flash esp_psram esp_driver_gpio esp_pm
                        WHOLE_ARCHIVE)
+
+if(CONFIG_IDF_TARGET_LINUX AND NOT CMAKE_HOST_SYSTEM_NAME STREQUAL "Darwin")
+    # Linux host heap integrity checks are stubs, so use ASan to catch dump overflows.
+    set(asan_options -fsanitize=address -fno-omit-frame-pointer)
+    idf_component_get_property(esp_timer_lib esp_timer COMPONENT_LIB)
+    target_compile_options(${esp_timer_lib} PRIVATE ${asan_options})
+    target_compile_options(${COMPONENT_LIB} PRIVATE ${asan_options})
+    idf_build_set_property(LINK_OPTIONS -fsanitize=address APPEND)
+endif()

components/esp_timer/test_apps/main/test_esp_timer.c

@@ -6,6 +6,7 @@
 #include "sdkconfig.h"
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <inttypes.h>
 #include <time.h>
 #include <sys/time.h>
@@ -506,27 +507,6 @@ TEST_CASE("Can dump esp_timer stats", "[esp_timer]")
        overflow the internal string buffer if the
        length calculation is not correct.
     */
-#if CONFIG_IDF_TARGET_LINUX
-    const int NUM_TIMERS = 200;
-    esp_timer_handle_t timers[NUM_TIMERS];
-
-    for (int i = 0; i < NUM_TIMERS; ++i) {
-        char name[30];
-        snprintf(name, sizeof(name), "test_timer_number_%d", i);
-        esp_timer_create_args_t timer_args = {
-            .callback = &empty_cb,
-            .arg = NULL,
-            .name = name
-        };
-        TEST_ESP_OK(esp_timer_create(&timer_args, &timers[i]));
-    }
-
-    esp_timer_dump(stdout);
-
-    for (int i = 0; i < NUM_TIMERS; ++i) {
-        TEST_ESP_OK(esp_timer_delete(timers[i]));
-    }
-#else
     enum {
         INACTIVE_TIMER_COUNT = 64,
         NUM_TIMERS = 256,
@@ -566,7 +546,9 @@ TEST_CASE("Can dump esp_timer stats", "[esp_timer]")
     fclose(stream);
     TEST_ASSERT_NOT_NULL(strstr(dump_buf, "Timer stats:"));
     TEST_ASSERT_NOT_NULL(strstr(dump_buf, "72057594037927935"));
+#if !CONFIG_IDF_TARGET_LINUX
     TEST_ASSERT_TRUE(heap_caps_check_integrity_all(true));
+#endif
 
     for (size_t i = 0; i < NUM_TIMERS; ++i) {
         TEST_ESP_OK(esp_timer_stop(timers[i]));
@@ -576,7 +558,6 @@ TEST_CASE("Can dump esp_timer stats", "[esp_timer]")
     for (size_t i = 0; i < INACTIVE_TIMER_COUNT; ++i) {
         TEST_ESP_OK(esp_timer_delete(inactive_timers[i]));
     }
-#endif
 }
 
 typedef struct {