mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-01-22 15:07:43 +08:00
b9898fc993
Check whether __builtin_gcn_kernarg_ptr is available and, if it is,
call it instead using the hard-coded 'asm("s8")' in:
* newlib/libc/machine/amdgcn/exit-value.h (exit_with_int)
* newlib/libc/machine/amdgcn/mlock.c (sbrk)
* newlib/libc/sys/amdgcn/write.c (write)
newlib/libc/machine/amdgcn/exit-value.h | 6 ++++++
newlib/libc/machine/amdgcn/mlock.c | 10 +++++++---
newlib/libc/sys/amdgcn/write.c | 4 ++++
3 files changed, 17 insertions(+), 3 deletions(-)
55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/*
|
|
* 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;
|
|
#if defined(__has_builtin) && __has_builtin(__builtin_gcn_kernarg_ptr)
|
|
asm ("s_load_dwordx2 %0, %1, 16 glc\n\t"
|
|
"s_waitcnt 0"
|
|
: "=Sg"(return_value) : "r"(__builtin_gcn_kernarg_ptr()));
|
|
#else
|
|
asm ("s_load_dwordx2 %0, s[8:9], 16 glc\n\t"
|
|
"s_waitcnt 0" : "=Sg"(return_value));
|
|
#endif
|
|
*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
|