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05a2d7a8b3
This is still not properly resolving <https://gcc.gnu.org/PR85463> '[nvptx] "exit" in offloaded region doesn't terminate process', but is one step into that direction, and allows for simplifying some GCC code.
42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
/*
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* Support file for nvptx in newlib.
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* Copyright (c) 2014-2018 Mentor Graphics.
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*
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* The authors hereby grant permission to use, copy, modify, distribute,
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* and license this software and its documentation for any purpose, provided
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* that existing copyright notices are retained in all copies and that this
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* notice is included verbatim in any distributions. No written agreement,
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* license, or royalty fee is required for any of the authorized uses.
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* Modifications to this software may be copyrighted by their authors
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* and need not follow the licensing terms described here, provided that
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* the new terms are clearly indicated on the first page of each file where
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* they apply.
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*/
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#include <unistd.h>
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#include <stdlib.h>
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/* Sadly, PTX doesn't support weak declarations, only weak
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definitions. Weakly define it here in case we're not using crt0
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(for instance in offloading). You probably shouldn't be calling
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'exit' in an offloaded region anyway, but that'd be a runtime
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error, not a link error. */
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int *__attribute((weak)) __exitval_ptr;
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void __attribute__((noreturn))
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_exit (int status)
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{
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if (__exitval_ptr)
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{
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*__exitval_ptr = status;
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for (;;)
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asm ("exit;" ::: "memory");
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}
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else /* offloading */
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{
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/* Map to 'abort'; see <https://gcc.gnu.org/PR85463>
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'[nvptx] "exit" in offloaded region doesn't terminate process'. */
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abort ();
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}
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}
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