newlib-cygwin/newlib/libc/machine/amdgcn/exit-value.h

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/*
* Support file for amdgcn in newlib.
* Copyright (c) 2017 Mentor Graphics.
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#ifndef _AMDGCN_EXIT_VALUE_H_
#define _AMDGCN_EXIT_VALUE_H_
static inline void __attribute__((noreturn))
exit_with_int (int val)
{
/* Write the exit value to the conventional place. */
int *return_value;
asm ("s_load_dwordx2 %0, s[8:9], 16 glc\n\t"
"s_waitcnt 0" : "=Sg"(return_value));
*return_value = val;
/* Terminate the current kernel. */
asm ("s_dcache_wb");
asm ("s_endpgm");
__builtin_unreachable ();
}
static inline void __attribute__((noreturn))
exit_with_status_and_signal (int val, int signal)
{
if (signal == 0)
val = val & 0xff;
else
{
val = (128 + signal) & 0xff;
signal = signal & 0xff;
}
exit_with_int ((0xffff << 16) | (signal << 8) | val);
}
#endif