2c8f92039d
Added initial support Xilinx Embedded Software. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
102 lines
3.4 KiB
C
Executable file
102 lines
3.4 KiB
C
Executable file
/******************************************************************************
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*
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* Copyright (C) 2010 - 2014 Xilinx, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* Use of the Software is limited solely to applications:
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* (a) running on a Xilinx device, or
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* (b) that interact with a Xilinx device through a bus or interconnect.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of the Xilinx shall not be used
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* in advertising or otherwise to promote the sale, use or other dealings in
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* this Software without prior written authorization from Xilinx.
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*
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******************************************************************************/
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//----------------------------------------------------------------------------------------------------//
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//! @file libprocess.c
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//! This contains system call wrapper functions for Process Management.
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//----------------------------------------------------------------------------------------------------//
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#include <os_config.h>
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#include <sys/process.h>
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#include <sys/syscall.h>
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#include <sys/stats.h>
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#include <sys/ktypes.h>
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reent_t *lreent = NULL;
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extern void* make_syscall (void *arg1, void *arg2, void *arg3, void *arg4, void *arg5, int syscall_num);
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reent_t* get_reentrancy (void)
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{
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return (reent_t*) make_syscall (NULL, NULL, NULL, NULL, NULL, SC_GET_REENTRANCY);
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}
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#ifdef CONFIG_ELF_PROCESS
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pid_t elf_process_create (void* start, int prio)
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{
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return (int) make_syscall (start, (void*)prio, NULL, NULL, NULL, SC_PROCESS_CREATE);
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}
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int elf_process_exit (void)
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{
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return (int) make_syscall ( NULL, NULL, NULL, NULL, NULL, SC_PROCESS_EXIT);
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}
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#endif
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#ifdef CONFIG_KILL
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int kill (pid_t pid)
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{
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return (int) make_syscall ((void*)(int)pid, NULL, NULL, NULL, NULL, SC_PROCESS_KILL);
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}
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#endif
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int process_status (pid_t pid, p_stat *ps)
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{
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return (int) make_syscall ((void*)(int)pid, (void*)ps, NULL, NULL, NULL, SC_PROCESS_STATUS);
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}
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pid_t get_currentPID (void)
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{
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return (int) make_syscall (NULL, NULL, NULL, NULL, NULL, SC_PROCESS_GETPID);
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}
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#ifdef CONFIG_YIELD
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int yield (void)
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{
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return (int) make_syscall (NULL, NULL, NULL, NULL, NULL, SC_PROCESS_YIELD);
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}
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#endif /* CONFIG_YIELD */
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#ifdef CONFIG_STATS
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int get_kernel_stats (kstats_t *stats)
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{
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return (int) make_syscall ((void*)stats, NULL, NULL, NULL, NULL, SC_GET_KERNEL_STATS);
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}
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#endif
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int* __errno (void)
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{
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if (lreent == NULL)
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lreent = get_reentrancy ();
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return &(lreent->_errno);
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}
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