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-rw-r--r--py/nlr.c74
1 files changed, 0 insertions, 74 deletions
diff --git a/py/nlr.c b/py/nlr.c
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--- a/py/nlr.c
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@@ -1,74 +0,0 @@
-/*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2013-2017 Damien P. George
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "py/mpstate.h"
-
-// Helper macros to save/restore the pystack state
-#if MICROPY_ENABLE_PYSTACK
-#define MP_NLR_SAVE_PYSTACK(nlr_buf) (nlr_buf)->pystack = MP_STATE_THREAD(pystack_cur)
-#define MP_NLR_RESTORE_PYSTACK(nlr_buf) MP_STATE_THREAD(pystack_cur) = (nlr_buf)->pystack
-#else
-#define MP_NLR_SAVE_PYSTACK(nlr_buf) (void)nlr_buf
-#define MP_NLR_RESTORE_PYSTACK(nlr_buf) (void)nlr_buf
-#endif
-
-#if !MICROPY_NLR_SETJMP
-// When not using setjmp, nlr_push_tail is called from inline asm so needs special care
-#if MICROPY_NLR_X86 && (defined(_WIN32) || defined(__CYGWIN__))
-// On these 32-bit platforms make sure nlr_push_tail doesn't have a leading underscore
-unsigned int nlr_push_tail(nlr_buf_t *nlr) asm("nlr_push_tail");
-#else
-// LTO can't see inside inline asm functions so explicitly mark nlr_push_tail as used
-__attribute__((used)) unsigned int nlr_push_tail(nlr_buf_t *nlr);
-#endif
-#endif
-
-unsigned int nlr_push_tail(nlr_buf_t *nlr) {
- nlr_buf_t **top = &MP_STATE_THREAD(nlr_top);
- nlr->prev = *top;
- MP_NLR_SAVE_PYSTACK(nlr);
- *top = nlr;
- return 0; // normal return
-}
-
-void nlr_pop(void) {
- nlr_buf_t **top = &MP_STATE_THREAD(nlr_top);
- *top = (*top)->prev;
-}
-
-NORETURN void nlr_jump(void *val) {
- nlr_buf_t **top_ptr = &MP_STATE_THREAD(nlr_top);
- nlr_buf_t *top = *top_ptr;
- if (top == NULL) {
- nlr_jump_fail(val);
- }
-
- top->ret_val = val;
- MP_NLR_RESTORE_PYSTACK(top);
- *top_ptr = top->prev;
-
- nlr_jump_tail(top);
-}