feat(coredump): add coredump_extram attribute

Closes https://github.com/espressif/esp-idf/issues/15429

(cherry picked from commit 5ba3e9df98)

tools/test_apps/system/panic/main/include/test_panic.h

@@ -87,6 +87,10 @@ void test_panic_print_backtrace(void);
 void test_panic_halt(void);
 #endif /* CONFIG_ESP_SYSTEM_PANIC_PRINT_HALT */
 
+#if CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY && CONFIG_SPIRAM_ALLOW_NOINIT_SEG_EXTERNAL_MEMORY
+void test_panic_extram_attr(void);
+#endif
+
 #ifdef __cplusplus
 }
 #endif

tools/test_apps/system/panic/main/test_app_main.c

@@ -222,5 +222,9 @@ void app_main(void)
 #endif
 #endif
 
+#if CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY && CONFIG_SPIRAM_ALLOW_NOINIT_SEG_EXTERNAL_MEMORY
+    HANDLE_TEST(test_name, test_panic_extram_attr);
+#endif
+
     die("Unknown test name");
 }

tools/test_apps/system/panic/main/test_panic.c

@@ -430,6 +430,16 @@ void test_capture_dram(void)
 }
 #endif
 
+#if CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY && CONFIG_SPIRAM_ALLOW_NOINIT_SEG_EXTERNAL_MEMORY
+COREDUMP_EXTRAM_ATTR uint32_t g_extram_bss_var;
+COREDUMP_EXTRAM_NOINIT_ATTR uint32_t g_extram_noinit_var;
+void test_panic_extram_attr(void)
+{
+    g_extram_bss_var = 123456;
+    g_extram_noinit_var = 789012;
+    assert(0);
+}
+#endif
 
 #if CONFIG_ESP_SYSTEM_USE_FRAME_POINTER
 

tools/test_apps/system/panic/pytest_panic.py

@@ -285,6 +285,25 @@ def test_panic_extram_stack(dut: PanicTestDut, config: str) -> None:
     common_test(dut, config, expected_backtrace=None, expected_coredump=[coredump_pattern])
 
 
+@pytest.mark.psram
+@idf_parametrize('config, target', [('coredump_flash_extram_attr_esp32', 'esp32')], indirect=['config', 'target'])
+def test_panic_extram_attr(dut: PanicTestDut, config: str) -> None:
+    dut.run_test_func('test_panic_extram_attr')
+    regex_pattern = rb'assert failed:[\s\w()]*?\s[.\w/]*\.(?:c|cpp|h|hpp):\d.*$'
+    dut.expect(re.compile(regex_pattern, re.MULTILINE))
+    dut.expect_backtrace()
+    dut.expect_elf_sha256()
+    dut.expect_none(['Guru Meditation', 'Re-entered core dump'])
+
+    expect_coredump_flash_write_logs(dut, config)
+    core_elf_file = dut.process_coredump_flash()
+
+    dut.start_gdb_for_coredump(core_elf_file)
+
+    assert dut.gdb_data_eval_expr('g_extram_bss_var') == '123456'
+    assert dut.gdb_data_eval_expr('g_extram_noinit_var') == '789012'
+
+
 @pytest.mark.generic
 @idf_parametrize('config, target', CONFIGS, indirect=['config', 'target'])
 def test_int_wdt(dut: PanicTestDut, target: str, config: str, test_func_name: str) -> None:

tools/test_apps/system/panic/sdkconfig.ci.coredump_flash_extram_attr_esp32

@@ -0,0 +1,12 @@
+CONFIG_IDF_TARGET="esp32"
+CONFIG_ESP_COREDUMP_ENABLE_TO_FLASH=y
+# We need to have the coredump info log
+CONFIG_LOG_DEFAULT_LEVEL_INFO=y
+CONFIG_SPIRAM=y
+CONFIG_FREERTOS_TASK_CREATE_ALLOW_EXT_MEM=y
+CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY=y
+CONFIG_SPIRAM_ALLOW_NOINIT_SEG_EXTERNAL_MEMORY=y
+CONFIG_ESP_COREDUMP_USE_STACK_SIZE=y
+CONFIG_ESP_COREDUMP_CAPTURE_DRAM=y
+CONFIG_PARTITION_TABLE_CUSTOM=y
+CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions_capture_dram.csv"