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acrn-kernel/arch/csky/abiv1/inc/abi/vdso.h

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csky: VDSO and rt_sigreturn This patch adds files related to VDSO and our VDSO only support rt_sigreturn. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:14 +08:00
/* SPDX-License-Identifier: GPL-2.0 */
csky: Reconstruct VDSO framework Reconstruct vdso framework to support future vsyscall, vgettimeofday features. These are very important features to reduce system calls into the kernel for performance improvement. The patch is reference RISC-V's Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Palmer Dabbelt <palmerdabbelt@google.com>
2021-01-04 11:37:07 +08:00
#ifndef __ABI_CSKY_VDSO_H
#define __ABI_CSKY_VDSO_H
csky: VDSO and rt_sigreturn This patch adds files related to VDSO and our VDSO only support rt_sigreturn. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:14 +08:00
csky: Reconstruct VDSO framework Reconstruct vdso framework to support future vsyscall, vgettimeofday features. These are very important features to reduce system calls into the kernel for performance improvement. The patch is reference RISC-V's Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Palmer Dabbelt <palmerdabbelt@google.com>
2021-01-04 11:37:07 +08:00
/* movi r1, 127; addi r1, (139 - 127) */
#define SET_SYSCALL_ID .long 0x20b167f1
csky: VDSO and rt_sigreturn This patch adds files related to VDSO and our VDSO only support rt_sigreturn. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-09-05 14:25:14 +08:00
csky: Reconstruct VDSO framework Reconstruct vdso framework to support future vsyscall, vgettimeofday features. These are very important features to reduce system calls into the kernel for performance improvement. The patch is reference RISC-V's Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Palmer Dabbelt <palmerdabbelt@google.com>
2021-01-04 11:37:07 +08:00
#endif /* __ABI_CSKY_VDSO_H */