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78 lines
1.9 KiB
78 lines
1.9 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Userland implementation of gettimeofday() for 32 bits processes in a |
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* ppc64 kernel for use in the vDSO |
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* |
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* Copyright (C) 2004 Benjamin Herrenschmuidt (benh@kernel.crashing.org, |
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* IBM Corp. |
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*/ |
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#include <asm/processor.h> |
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#include <asm/ppc_asm.h> |
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#include <asm/vdso.h> |
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#include <asm/vdso_datapage.h> |
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#include <asm/asm-offsets.h> |
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#include <asm/unistd.h> |
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#include <asm/vdso/gettimeofday.h> |
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.text |
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/* |
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* Exact prototype of gettimeofday |
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* |
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* int __kernel_gettimeofday(struct timeval *tv, struct timezone *tz); |
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* |
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*/ |
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V_FUNCTION_BEGIN(__kernel_gettimeofday) |
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cvdso_call __c_kernel_gettimeofday |
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V_FUNCTION_END(__kernel_gettimeofday) |
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/* |
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* Exact prototype of clock_gettime() |
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* |
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* int __kernel_clock_gettime(clockid_t clock_id, struct timespec *tp); |
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* |
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*/ |
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V_FUNCTION_BEGIN(__kernel_clock_gettime) |
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cvdso_call __c_kernel_clock_gettime |
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V_FUNCTION_END(__kernel_clock_gettime) |
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/* |
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* Exact prototype of clock_gettime64() |
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* |
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* int __kernel_clock_gettime64(clockid_t clock_id, struct __timespec64 *ts); |
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* |
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*/ |
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V_FUNCTION_BEGIN(__kernel_clock_gettime64) |
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cvdso_call __c_kernel_clock_gettime64 |
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V_FUNCTION_END(__kernel_clock_gettime64) |
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/* |
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* Exact prototype of clock_getres() |
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* |
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* int __kernel_clock_getres(clockid_t clock_id, struct timespec *res); |
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* |
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*/ |
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V_FUNCTION_BEGIN(__kernel_clock_getres) |
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cvdso_call __c_kernel_clock_getres |
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V_FUNCTION_END(__kernel_clock_getres) |
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/* |
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* Exact prototype of time() |
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* |
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* time_t time(time *t); |
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* |
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*/ |
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V_FUNCTION_BEGIN(__kernel_time) |
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cvdso_call_time __c_kernel_time |
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V_FUNCTION_END(__kernel_time) |
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/* Routines for restoring integer registers, called by the compiler. */ |
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/* Called with r11 pointing to the stack header word of the caller of the */ |
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/* function, just beyond the end of the integer restore area. */ |
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_GLOBAL(_restgpr_31_x) |
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_GLOBAL(_rest32gpr_31_x) |
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lwz r0,4(r11) |
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lwz r31,-4(r11) |
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mtlr r0 |
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mr r1,r11 |
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blr
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