feat(coredump): add coredump_noinit attribute

components/esp_common/include/esp_attr.h

@@ -120,7 +120,14 @@ extern "C" {
 
 // Allows to place data into RTC_FAST memory and map it to coredump
 #define COREDUMP_RTC_FAST_ATTR _SECTION_ATTR_IMPL(".rtc.fast.coredump", __COUNTER__)
+
+// Allows to place data into RTC_NOINIT memory and map it to coredump
+#define COREDUMP_NOINIT_ATTR _SECTION_ATTR_IMPL(".rtc_noinit.coredump", __COUNTER__)
 #else
+
+// Allows to place data into NOINIT memory and map it to coredump
+#define COREDUMP_NOINIT_ATTR _SECTION_ATTR_IMPL(".noinit.coredump", __COUNTER__)
+
 // RTC memory is not supported on these chips
 #define RTC_DATA_ATTR ESP_STATIC_ASSERT(0, "RTC_DATA_ATTR is not supported on this chip. Use DRAM_ATTR instead.")
 #define RTC_NOINIT_ATTR ESP_STATIC_ASSERT(0, "RTC_NOINIT_ATTR is not supported on this chip. Use DRAM_ATTR instead.")

components/espcoredump/include_core_dump/esp_core_dump_common.h

@@ -37,6 +37,7 @@ typedef enum {
     COREDUMP_MEMORY_RTC,
     COREDUMP_MEMORY_RTC_FAST,
 #endif
+    COREDUMP_MEMORY_NOINIT,
     COREDUMP_MEMORY_MAX,
     COREDUMP_MEMORY_START = COREDUMP_MEMORY_IRAM
 } coredump_region_t;

components/espcoredump/linker.lf

@@ -6,6 +6,10 @@ entries:
 entries:
     .rtc.coredump+
 
+[sections:rtc_noinit_coredump]
+entries:
+    .rtc_noinit.coredump+
+
 [sections:dram_coredump]
 entries:
     .dram2.coredump+
@@ -17,11 +21,17 @@ entries:
 entries:
     .iram2.coredump+
 
+[sections:noinit_coredump]
+entries:
+    .noinit.coredump+
+
 [scheme:coredump_default]
 entries:
     dram_coredump -> dram0_data
     rtc_coredump -> rtc_data
     rtc_fast_coredump -> rtc_force_fast
+    rtc_noinit_coredump -> rtc_noinit
+    noinit_coredump -> noinit
     iram_coredump -> iram0_data
 
 [mapping:coredump_default]
@@ -30,6 +40,8 @@ entries:
     * (coredump_default);
         rtc_fast_coredump -> rtc_force_fast SURROUND(coredump_rtc_fast),
         rtc_coredump -> rtc_data SURROUND(coredump_rtc),
+        rtc_noinit_coredump -> rtc_noinit SURROUND(coredump_rtc_noinit),
+        noinit_coredump -> noinit SURROUND(coredump_noinit),
         dram_coredump -> dram0_data SURROUND(coredump_dram),
         iram_coredump -> iram0_data SURROUND(coredump_iram)
 

components/espcoredump/src/core_dump_common.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2015-2026 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -51,6 +51,11 @@ extern int _coredump_rtc_start;
 extern int _coredump_rtc_end;
 extern int _coredump_rtc_fast_start;
 extern int _coredump_rtc_fast_end;
+extern int _coredump_rtc_noinit_start;
+extern int _coredump_rtc_noinit_end;
+#else
+extern int _coredump_noinit_start;
+extern int _coredump_noinit_end;
 #endif
 
 static void* s_exc_frame = NULL;
@@ -241,21 +246,6 @@ bool esp_core_dump_get_task_snapshot(void *handle, core_dump_task_header_t *task
     return true;
 }
 
-uint32_t esp_core_dump_get_user_ram_segments(void)
-{
-    uint32_t total_sz = 0;
-
-    // count number of memory segments to insert into ELF structure
-    total_sz += COREDUMP_GET_MEMORY_SIZE(&_coredump_dram_end, &_coredump_dram_start) > 0 ? 1 : 0;
-#if SOC_RTC_MEM_SUPPORTED
-    total_sz += COREDUMP_GET_MEMORY_SIZE(&_coredump_rtc_end, &_coredump_rtc_start) > 0 ? 1 : 0;
-    total_sz += COREDUMP_GET_MEMORY_SIZE(&_coredump_rtc_fast_end, &_coredump_rtc_fast_start) > 0 ? 1 : 0;
-#endif
-    total_sz += COREDUMP_GET_MEMORY_SIZE(&_coredump_iram_end, &_coredump_iram_start) > 0 ? 1 : 0;
-
-    return total_sz;
-}
-
 static const struct {
     int *start;
     int *end;
@@ -277,6 +267,9 @@ static const struct {
 #if SOC_RTC_MEM_SUPPORTED
     [COREDUMP_MEMORY_RTC] = { &_coredump_rtc_start, &_coredump_rtc_end },
     [COREDUMP_MEMORY_RTC_FAST] = { &_coredump_rtc_fast_start, &_coredump_rtc_fast_end },
+    [COREDUMP_MEMORY_NOINIT] = { &_coredump_rtc_noinit_start, &_coredump_rtc_noinit_end },
+#else
+    [COREDUMP_MEMORY_NOINIT] = { &_coredump_noinit_start, &_coredump_noinit_end },
 #endif
 };
 

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

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2022-2026 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Unlicense OR CC0-1.0
  */
@@ -405,6 +405,8 @@ int g_bss_var;
 char *g_heap_ptr;
 COREDUMP_IRAM_DATA_ATTR uint32_t g_cd_iram = 0x4242;
 COREDUMP_DRAM_ATTR uint32_t g_cd_dram = 0x4343;
+COREDUMP_NOINIT_ATTR uint32_t g_noinit_var;
+COREDUMP_NOINIT_ATTR char g_noinit_buffer[28];
 #if SOC_RTC_MEM_SUPPORTED
 COREDUMP_RTC_FAST_ATTR uint32_t g_rtc_fast_var;
 COREDUMP_RTC_DATA_ATTR uint32_t g_rtc_data_var = 0x55A9;
@@ -422,6 +424,8 @@ void test_capture_dram(void)
     g_rtc_fast_var = 0xAABBCCDD;
     g_rtc_data_var++;
 #endif
+    g_noinit_var = 0xCAFEBABE;
+    strcpy(g_noinit_buffer, "NOINIT_TEST_STRING");
     assert(0);
 }
 #endif

tools/test_apps/system/panic/pytest_panic.py

@@ -1305,6 +1305,9 @@ def test_capture_dram(dut: PanicTestDut, config: str, test_func_name: str) -> No
     assert re.search(r'0x[0-9a-fA-F]+ "Coredump Test"', dut.gdb_data_eval_expr('g_heap_ptr'))
     assert int(dut.gdb_data_eval_expr('g_cd_iram')) == 0x4243
     assert int(dut.gdb_data_eval_expr('g_cd_dram')) == 0x4344
+    assert int(dut.gdb_data_eval_expr('g_noinit_var')) == 0xCAFEBABE
+    buffer_value = str(dut.gdb_data_eval_expr('g_noinit_buffer'))
+    assert 'NOINIT_TEST_STRING' in buffer_value
 
     if dut.target not in ['esp32c61', 'esp32c2']:
         assert int(dut.gdb_data_eval_expr('g_rtc_data_var')) == 0x55AA