alx/ueforth
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Refactor fault handling.

Browse Source
This commit is contained in:
Brad Nelson
2023-01-14 22:28:38 -08:00
parent f8cfaedc84
commit 2f79192ea0
9 changed files with 110 additions and 79 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
esp32/faults.h Normal file
View File

@ -0,0 +1,54 @@
// Copyright 2023 Bradley D. Nelson
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#if defined(ENABLE_ESP32_FORTH_FAULT_HANDLING)
#include <setjmp.h>
#include "soc/soc.h"
#include <xtensa/xtensa_api.h>
static __thread jmp_buf g_forth_fault;
static __thread int g_forth_signal;
static __thread uint32_t g_forth_setlevel;
#define FAULT_ENTRY \
if (setjmp(g_forth_fault)) { THROWIT(-g_forth_signal); }
static void IRAM_ATTR forth_exception_handler(XtExcFrame *frame) {
g_forth_signal = frame->exccause;
XTOS_RESTORE_INTLEVEL(g_forth_setlevel);
longjmp(g_forth_fault, 1);
}
static void forth_faults_setup(void) {
xt_set_exception_handler(EXCCAUSE_LOAD_STORE_ERROR, forth_exception_handler);
xt_set_exception_handler(EXCCAUSE_PRIVILEGED, forth_exception_handler);
xt_set_exception_handler(EXCCAUSE_UNALIGNED, forth_exception_handler);
xt_set_exception_handler(EXCCAUSE_DIVIDE_BY_ZERO, forth_exception_handler);
xt_set_exception_handler(EXCCAUSE_INSTR_ERROR, forth_exception_handler);
xt_set_exception_handler(EXCCAUSE_ILLEGAL, forth_exception_handler);
xt_set_exception_handler(EXCCAUSE_LOAD_PROHIBITED, forth_exception_handler);
xt_set_exception_handler(EXCCAUSE_STORE_PROHIBITED, forth_exception_handler);
xt_set_exception_handler(EXCCAUSE_INSTR_PROHIBITED, forth_exception_handler);
uint32_t default_setlevel = XTOS_SET_INTLEVEL(XCHAL_EXCM_LEVEL);
XTOS_RESTORE_INTLEVEL(default_setlevel);
g_forth_setlevel = default_setlevel;
}
#else
#define forth_faults_setup()
#define FAULT_ENTRY
#endif