fix(esp_rom): fixed float to int conversion functions not working on P4

components/esp_rom/esp32p4/ld/esp32p4.rom.rvfp.ld

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -16,15 +16,21 @@
 /***************************************
  Group rvfplibdf
  ***************************************/
+/*
+ * These functions cannot work when compiling with floating point ABI
+ * implementation assumes argument is passed in a0, but floats will be passed
+ * in the floating point registers instead
+ *
+ * __fixsfdi = 0x4fc00878;
+ * __fixunssfdi = 0x4fc00880;
+ */
 
 /* Functions */
 __adddf3 = 0x4fc00868;
 __eqdf2 = 0x4fc0086c;
 __fixdfdi = 0x4fc00870;
 __fixdfsi = 0x4fc00874;
-__fixsfdi = 0x4fc00878;
 __fixunsdfsi = 0x4fc0087c;
-__fixunssfdi = 0x4fc00880;
 __floatdidf = 0x4fc00884;
 __floatsidf = 0x4fc00888;
 __floatundidf = 0x4fc0088c;
@@ -41,6 +47,10 @@ __subdf3 = 0x4fc008ac;
  Group libgcc
 ***************************************/
 
+/* Not part of the orginal ROM interface, but RVFP versions cannot work with float-abi */
+__fixsfdi = 0x4fc007ac;
+__fixunssfdi = 0x4fc007b4;
+
 /* Functions */
 __absvdi2 = 0x4fc0073c;
 __absvsi2 = 0x4fc00740;

components/esp_rom/test_apps/.build-test-rules.yml

@@ -9,6 +9,3 @@ components/esp_rom/test_apps/rom_tests:
     - if: IDF_TARGET in ["esp32", "esp32c2"]
       temporary: false
       reason: lack of memory for testing miniz compressing
-    - if: IDF_TARGET == "esp32p4"
-      temporary: true
-      reason: test not pass, should be re-enable # TODO: IDF-8977

components/esp_rom/test_apps/rom_tests/pytest_esp_rom.py

@@ -10,6 +10,7 @@ from pytest_embedded import Dut
 @pytest.mark.esp32s3
 @pytest.mark.esp32c6
 @pytest.mark.esp32h2
+@pytest.mark.esp32p4
 @pytest.mark.generic
 def test_esp_rom(dut: Dut) -> None:
     dut.run_all_single_board_cases()