| 1 | /* |
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| 2 | * sys_display.c - display the current state of a kernel structure on TXT0 |
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| 3 | * |
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| 4 | * Author Alain Greiner (2016,2017,2018,2019,2020) |
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| 5 | * |
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| 6 | * Copyright (c) UPMC Sorbonne Universites |
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| 7 | * |
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| 8 | * This file is part of ALMOS-MKH. |
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| 9 | * |
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| 10 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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| 11 | * under the terms of the GNU General Public License as published by |
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| 12 | * the Free Software Foundation; version 2.0 of the License. |
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| 13 | * |
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| 14 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 17 | * General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
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| 21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 22 | */ |
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| 23 | |
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| 24 | #include <hal_kernel_types.h> |
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| 25 | #include <hal_uspace.h> |
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| 26 | #include <hal_vmm.h> |
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| 27 | #include <errno.h> |
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| 28 | #include <vmm.h> |
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| 29 | #include <cluster.h> |
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| 30 | #include <thread.h> |
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| 31 | #include <process.h> |
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| 32 | #include <string.h> |
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| 33 | #include <shared_syscalls.h> |
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| 34 | #include <remote_barrier.h> |
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| 35 | #include <vfs.h> |
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| 36 | #include <mapper.h> |
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| 37 | #include <ksocket.h> |
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| 38 | #include <syscalls.h> |
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| 39 | |
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| 40 | ///////////////////////////////////////////////////////////////////////////////// |
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| 41 | // This static function returns a printable string for the type of display. |
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| 42 | ///////////////////////////////////////////////////////////////////////////////// |
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| 43 | |
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| 44 | #if DEBUG_SYS_DISPLAY |
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| 45 | static char* display_type_str( uint32_t type ) |
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| 46 | { |
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| 47 | if ( type == DISPLAY_STRING ) return "STRING"; |
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| 48 | else if( type == DISPLAY_VMM ) return "VMM"; |
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| 49 | else if( type == DISPLAY_SCHED ) return "SCHED"; |
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| 50 | else if( type == DISPLAY_CLUSTER_PROCESSES ) return "CLUSTER_PROCESSES"; |
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| 51 | else if( type == DISPLAY_VFS ) return "VFS"; |
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| 52 | else if( type == DISPLAY_CHDEV ) return "CHDEV"; |
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| 53 | else if( type == DISPLAY_TXT_PROCESSES ) return "TXT_PROCESSES"; |
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| 54 | else if( type == DISPLAY_DQDT ) return "DQDT"; |
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| 55 | else if( type == DISPLAY_BUSYLOCKS ) return "BUSYLOCKS"; |
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| 56 | else if( type == DISPLAY_MAPPER ) return "MAPPER"; |
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| 57 | else if( type == DISPLAY_BARRIER ) return "BARRIER"; |
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| 58 | else if( type == DISPLAY_FAT ) return "FAT"; |
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| 59 | else if( type == DISPLAY_SOCKET ) return "SOCKET"; |
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| 60 | else if( type == DISPLAY_FD ) return "FD"; |
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| 61 | else if( type == DISPLAY_WINDOWS ) return "WINDOWS"; |
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| 62 | else return "undefined"; |
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| 63 | } |
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| 64 | #endif |
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| 65 | |
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| 66 | ///////////////////////////// |
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| 67 | int sys_display( reg_t type, |
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| 68 | reg_t arg0, |
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| 69 | reg_t arg1, |
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| 70 | reg_t arg2 ) |
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| 71 | { |
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| 72 | |
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| 73 | error_t error; |
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| 74 | vseg_t * vseg; |
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| 75 | |
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| 76 | thread_t * this = CURRENT_THREAD; |
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| 77 | process_t * process = this->process; |
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| 78 | |
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| 79 | #if (DEBUG_SYS_DISPLAY || CONFIG_INSTRUMENTATION_SYSCALLS) |
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| 80 | uint64_t tm_start = hal_get_cycles(); |
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| 81 | #endif |
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| 82 | |
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| 83 | #if DEBUG_SYS_DISPLAY |
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| 84 | tm_start = hal_get_cycles(); |
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| 85 | if( DEBUG_SYS_DISPLAY < tm_start ) |
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| 86 | printk("\n[%s] thread[%x,%x] enter / type %s / arg0 %x / arg1 %x / arg2 %x / cycle = %d\n", |
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| 87 | __FUNCTION__, process->pid, this->trdid, display_type_str(type), |
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| 88 | (uint32_t)arg0, (uint32_t)arg1, (uint32_t)arg2, (uint32_t)tm_start ); |
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| 89 | #endif |
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| 90 | |
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| 91 | switch( type ) |
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| 92 | { |
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| 93 | //////////////////// |
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| 94 | case DISPLAY_STRING: |
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| 95 | { |
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| 96 | char kbuf[512]; |
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| 97 | uint32_t length; |
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| 98 | |
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| 99 | char * string = (char *)arg0; |
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| 100 | |
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| 101 | // check string in user space |
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| 102 | error = vmm_get_vseg( process , (intptr_t)arg0 , &vseg ); |
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| 103 | if( error ) |
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| 104 | { |
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| 105 | |
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| 106 | #if DEBUG_SYSCALLS_ERROR |
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| 107 | printk("\n[ERROR] in %s for STRING : string buffer %x unmapped\n", |
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| 108 | __FUNCTION__ , (intptr_t)arg0 ); |
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| 109 | #endif |
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| 110 | this->errno = EINVAL; |
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| 111 | return -1; |
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| 112 | } |
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| 113 | |
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| 114 | // ckeck string length |
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| 115 | length = hal_strlen_from_uspace( string ); |
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| 116 | if( length >= 512 ) |
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| 117 | { |
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| 118 | |
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| 119 | #if DEBUG_SYSCALLS_ERROR |
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| 120 | printk("\n[ERROR] in %s STRING : string length %d too large\n", |
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| 121 | __FUNCTION__ , length ); |
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| 122 | #endif |
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| 123 | this->errno = EINVAL; |
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| 124 | return -1; |
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| 125 | } |
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| 126 | |
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| 127 | // copy string to kernel space |
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| 128 | hal_strcpy_from_uspace( XPTR( local_cxy , kbuf ), |
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| 129 | string, |
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| 130 | 512 ); |
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| 131 | |
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| 132 | // print message on TXT0 kernel terminal |
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| 133 | printk("\n%s / cycle %d\n", kbuf, (uint32_t)hal_get_cycles() ); |
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| 134 | |
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| 135 | break; |
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| 136 | } |
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| 137 | ///////////////// |
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| 138 | case DISPLAY_VMM: |
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| 139 | { |
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| 140 | cxy_t cxy = (cxy_t)arg0; |
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| 141 | pid_t pid = (pid_t)arg1; |
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| 142 | bool_t mapping = (arg2 != 0); |
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| 143 | |
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| 144 | // check cxy argument |
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| 145 | if( cluster_is_active( cxy ) == false ) |
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| 146 | { |
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| 147 | |
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| 148 | #if DEBUG_SYSCALLS_ERROR |
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| 149 | printk("\n[ERROR] in %s VMM : process %x in cluster %x not found\n", |
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| 150 | __FUNCTION__ , pid , cxy ); |
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| 151 | #endif |
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| 152 | this->errno = EINVAL; |
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| 153 | return -1; |
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| 154 | } |
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| 155 | |
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| 156 | // get extended pointer on process PID in cluster CXY |
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| 157 | xptr_t process_xp = cluster_get_process_from_pid_in_cxy( cxy , pid ); |
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| 158 | if( process_xp == XPTR_NULL ) |
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| 159 | { |
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| 160 | |
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| 161 | #if DEBUG_SYSCALLS_ERROR |
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| 162 | printk("\n[ERROR] in %s VMM : process %x in cluster %x not found\n", |
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| 163 | __FUNCTION__ , pid , cxy ); |
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| 164 | #endif |
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| 165 | this->errno = EINVAL; |
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| 166 | return -1; |
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| 167 | } |
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| 168 | |
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| 169 | // call kernel function |
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| 170 | hal_vmm_display( process_xp , mapping ); |
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| 171 | |
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| 172 | break; |
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| 173 | } |
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| 174 | /////////////////// |
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| 175 | case DISPLAY_SCHED: |
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| 176 | { |
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| 177 | cxy_t cxy = (cxy_t)arg0; |
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| 178 | lid_t lid = (lid_t)arg1; |
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| 179 | |
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| 180 | // check cxy argument |
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| 181 | if( cluster_is_active( cxy ) == false ) |
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| 182 | { |
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| 183 | |
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| 184 | #if DEBUG_SYSCALLS_ERROR |
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| 185 | printk("\n[ERROR] in %s SCHED : illegal cxy argument %x\n", |
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| 186 | __FUNCTION__ , cxy ); |
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| 187 | #endif |
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| 188 | this->errno = EINVAL; |
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| 189 | return -1; |
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| 190 | } |
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| 191 | |
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| 192 | // check lid argument |
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| 193 | if( lid >= LOCAL_CLUSTER->cores_nr ) |
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| 194 | { |
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| 195 | |
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| 196 | #if DEBUG_SYSCALLS_ERROR |
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| 197 | printk("\n[ERROR] in %s SCHED : illegal lid argument %x\n", |
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| 198 | __FUNCTION__ , lid ); |
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| 199 | #endif |
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| 200 | this->errno = EINVAL; |
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| 201 | return -1; |
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| 202 | } |
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| 203 | |
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| 204 | // call kernel function |
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| 205 | sched_remote_display( cxy , lid ); |
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| 206 | |
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| 207 | break; |
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| 208 | } |
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| 209 | /////////////////////////////// |
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| 210 | case DISPLAY_CLUSTER_PROCESSES: |
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| 211 | { |
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| 212 | cxy_t cxy = (cxy_t)arg0; |
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| 213 | bool_t owned = (bool_t)arg1; |
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| 214 | |
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| 215 | // check cxy argument |
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| 216 | if( cluster_is_active( cxy ) == false ) |
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| 217 | { |
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| 218 | |
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| 219 | #if DEBUG_SYSCALLS_ERROR |
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| 220 | printk("\n[ERROR] in %s CLUSTER_PROCESSES : illegal cxy argument %x\n", |
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| 221 | __FUNCTION__ , cxy ); |
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| 222 | #endif |
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| 223 | this->errno = EINVAL; |
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| 224 | return -1; |
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| 225 | } |
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| 226 | |
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| 227 | cluster_processes_display( cxy , owned ); |
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| 228 | |
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| 229 | break; |
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| 230 | } |
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| 231 | ///////////////// |
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| 232 | case DISPLAY_VFS: |
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| 233 | { |
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| 234 | vfs_display( process->vfs_root_xp ); |
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| 235 | |
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| 236 | break; |
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| 237 | } |
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| 238 | /////////////////// |
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| 239 | case DISPLAY_CHDEV: |
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| 240 | { |
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| 241 | chdev_dir_display(); |
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| 242 | |
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| 243 | break; |
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| 244 | } |
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| 245 | /////////////////////////// |
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| 246 | case DISPLAY_TXT_PROCESSES: |
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| 247 | { |
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| 248 | uint32_t txt_id = (uint32_t)arg0; |
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| 249 | |
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| 250 | // check argument |
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| 251 | if( txt_id >= LOCAL_CLUSTER->nb_txt_channels ) |
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| 252 | { |
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| 253 | |
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| 254 | #if DEBUG_SYSCALLS_ERROR |
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| 255 | printk("\n[ERROR] in %s TXT_PROCESSES : illegal txt_id argument %d\n", |
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| 256 | __FUNCTION__ , txt_id ); |
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| 257 | #endif |
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| 258 | this->errno = EINVAL; |
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| 259 | return -1; |
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| 260 | } |
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| 261 | |
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| 262 | process_txt_display( txt_id ); |
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| 263 | |
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| 264 | break; |
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| 265 | } |
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| 266 | ////////////////// |
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| 267 | case DISPLAY_DQDT: |
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| 268 | { |
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| 269 | dqdt_display(); |
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| 270 | |
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| 271 | break; |
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| 272 | } |
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| 273 | /////////////////////// |
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| 274 | case DISPLAY_BUSYLOCKS: |
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| 275 | { |
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| 276 | pid_t pid = (pid_t)arg0; |
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| 277 | trdid_t trdid = (trdid_t)arg1; |
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| 278 | |
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| 279 | // get extended pointer on target thread |
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| 280 | xptr_t thread_xp = thread_get_xptr( pid , trdid ); |
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| 281 | |
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| 282 | if( thread_xp == XPTR_NULL ) |
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| 283 | { |
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| 284 | |
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| 285 | #if DEBUG_SYSCALLS_ERROR |
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| 286 | printk("\n[ERROR] in %s BUSYLOCKS : thread[%x,%x] not found\n", |
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| 287 | __FUNCTION__ , pid, trdid ); |
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| 288 | #endif |
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| 289 | this->errno = EINVAL; |
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| 290 | return -1; |
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| 291 | } |
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| 292 | |
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| 293 | thread_display_busylocks( thread_xp , __FUNCTION__ ); |
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| 294 | |
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| 295 | break; |
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| 296 | } |
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| 297 | //////////////////// |
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| 298 | case DISPLAY_MAPPER: |
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| 299 | { |
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| 300 | xptr_t root_inode_xp; |
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| 301 | xptr_t inode_xp; |
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| 302 | cxy_t inode_cxy; |
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| 303 | vfs_inode_t * inode_ptr; |
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| 304 | xptr_t mapper_xp; |
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| 305 | mapper_t * mapper_ptr; |
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| 306 | xptr_t page_xp; |
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| 307 | |
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| 308 | char kbuf[CONFIG_VFS_MAX_PATH_LENGTH]; |
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| 309 | |
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| 310 | char * path = (char *)arg0; |
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| 311 | uint32_t page_id = (uint32_t)arg1; |
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| 312 | uint32_t nbytes = (uint32_t)arg2; |
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| 313 | |
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| 314 | // check pathname length |
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| 315 | if( hal_strlen_from_uspace( path ) >= CONFIG_VFS_MAX_PATH_LENGTH ) |
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| 316 | { |
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| 317 | |
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| 318 | #if DEBUG_SYSCALLS_ERROR |
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| 319 | printk("\n[ERROR] in %s MAPPER : pathname too long\n", |
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| 320 | __FUNCTION__ ); |
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| 321 | #endif |
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| 322 | this->errno = EINVAL; |
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| 323 | return -1; |
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| 324 | } |
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| 325 | |
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| 326 | // check nbytes |
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| 327 | if( nbytes >= 4096 ) |
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| 328 | { |
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| 329 | |
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| 330 | #if DEBUG_SYSCALLS_ERROR |
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| 331 | printk("\n[ERROR] in %s MAPPER : nbytes cannot be larger than 4096\n", |
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| 332 | __FUNCTION__ ); |
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| 333 | #endif |
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| 334 | this->errno = EINVAL; |
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| 335 | return -1; |
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| 336 | } |
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| 337 | |
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| 338 | // copy pathname in kernel space |
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| 339 | hal_strcpy_from_uspace( XPTR( local_cxy , kbuf ), |
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| 340 | path, |
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| 341 | CONFIG_VFS_MAX_PATH_LENGTH ); |
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| 342 | |
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| 343 | // compute root inode for pathname |
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| 344 | if( kbuf[0] == '/' ) // absolute path |
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| 345 | { |
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| 346 | // use extended pointer on VFS root inode |
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| 347 | root_inode_xp = process->vfs_root_xp; |
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| 348 | } |
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| 349 | else // relative path |
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| 350 | { |
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| 351 | // get cluster and local pointer on reference process |
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| 352 | xptr_t ref_xp = process->ref_xp; |
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| 353 | process_t * ref_ptr = (process_t *)GET_PTR( ref_xp ); |
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| 354 | cxy_t ref_cxy = GET_CXY( ref_xp ); |
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| 355 | |
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| 356 | // get extended pointer on CWD inode |
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| 357 | root_inode_xp = hal_remote_l64( XPTR( ref_cxy , &ref_ptr->cwd_xp ) ); |
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| 358 | } |
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| 359 | |
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| 360 | // get extended pointer on target inode |
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| 361 | error = vfs_lookup( root_inode_xp, |
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| 362 | kbuf, |
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| 363 | 0, |
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| 364 | &inode_xp, |
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| 365 | NULL ); |
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| 366 | if( error ) |
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| 367 | { |
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| 368 | |
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| 369 | #if DEBUG_SYSCALLS_ERROR |
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| 370 | printk("\n[ERROR] in %s for MAPPER : cannot found inode <%s>\n", |
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| 371 | __FUNCTION__ , kbuf ); |
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| 372 | #endif |
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| 373 | this->errno = ENFILE; |
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| 374 | return -1; |
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| 375 | } |
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| 376 | |
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| 377 | // get target inode cluster and local pointer |
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| 378 | inode_cxy = GET_CXY( inode_xp ); |
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| 379 | inode_ptr = GET_PTR( inode_xp ); |
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| 380 | |
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| 381 | // get extended pointer on target mapper |
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| 382 | mapper_ptr = hal_remote_lpt( XPTR( inode_cxy , &inode_ptr->mapper ) ); |
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| 383 | mapper_xp = XPTR( inode_cxy , mapper_ptr ); |
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| 384 | |
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| 385 | // get extended pointer on target page |
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| 386 | page_xp = mapper_get_page( mapper_xp , page_id ); |
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| 387 | |
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| 388 | if( page_xp == XPTR_NULL ) |
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| 389 | { |
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| 390 | |
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| 391 | #if DEBUG_SYSCALLS_ERROR |
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| 392 | printk("\n[ERROR] in %s MAPPER : cannot get page %d\n", |
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| 393 | __FUNCTION__ , page_id ); |
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| 394 | #endif |
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| 395 | this->errno = ENFILE; |
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| 396 | return -1; |
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| 397 | } |
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| 398 | |
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| 399 | // display mapper |
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| 400 | mapper_display_page( mapper_xp , page_xp , nbytes ); |
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| 401 | |
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| 402 | |
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| 403 | break; |
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| 404 | } |
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| 405 | ///////////////////// |
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| 406 | case DISPLAY_BARRIER: |
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| 407 | { |
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| 408 | // get target process PID |
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| 409 | pid_t pid = (pid_t)arg0; |
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| 410 | |
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| 411 | // get pointers on owner process |
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| 412 | xptr_t process_xp = cluster_get_reference_process_from_pid( pid ); |
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| 413 | process_t * process_ptr = GET_PTR( process_xp ); |
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| 414 | cxy_t process_cxy = GET_CXY( process_xp ); |
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| 415 | |
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| 416 | if( process_xp == XPTR_NULL ) |
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| 417 | { |
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| 418 | |
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| 419 | #if DEBUG_SYSCALLS_ERROR |
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| 420 | printk("\n[ERROR] in %s BARRIER : process %x not found\n", |
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| 421 | __FUNCTION__ , pid ); |
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| 422 | #endif |
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| 423 | this->errno = EINVAL; |
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| 424 | return -1; |
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| 425 | } |
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| 426 | |
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| 427 | // get extended pointer on root of list of barriers |
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| 428 | xptr_t root_xp = XPTR( process_cxy , &process_ptr->barrier_root ); |
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| 429 | |
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| 430 | if( xlist_is_empty( root_xp ) ) |
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| 431 | { |
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| 432 | |
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| 433 | #if DEBUG_SYSCALLS_ERROR |
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| 434 | printk("\n[ERROR] in %s BARRIER : no registered barrier in process %x\n", |
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| 435 | __FUNCTION__ , pid ); |
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| 436 | #endif |
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| 437 | this->errno = EINVAL; |
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| 438 | return -1; |
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| 439 | } |
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| 440 | |
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| 441 | // get extended pointer on first registered generic barrier descriptor |
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| 442 | xptr_t gen_barrier_xp = XLIST_FIRST( root_xp , generic_barrier_t , list ); |
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| 443 | |
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| 444 | // display barrier state |
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| 445 | generic_barrier_display( gen_barrier_xp ); |
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| 446 | |
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| 447 | break; |
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| 448 | } |
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| 449 | ///////////////// |
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| 450 | case DISPLAY_FAT: |
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| 451 | { |
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| 452 | uint32_t slots = (uint32_t)arg1; |
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| 453 | |
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| 454 | if( slots > 1024 ) |
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| 455 | { |
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| 456 | |
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| 457 | #if DEBUG_SYSCALLS_ERROR |
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| 458 | printk("\n[ERROR] in %s FAT : nb_slots larger than 1024\n", |
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| 459 | __FUNCTION__ ); |
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| 460 | #endif |
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| 461 | this->errno = EINVAL; |
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| 462 | return -1; |
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| 463 | } |
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| 464 | |
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| 465 | if( slots == 0 ) // display fat context in cluster cxy |
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| 466 | { |
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| 467 | uint32_t cxy = (uint32_t)arg0; |
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| 468 | |
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| 469 | if( cluster_is_active( cxy ) == false ) |
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| 470 | { |
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| 471 | |
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| 472 | #if DEBUG_SYSCALLS_ERROR |
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| 473 | printk("\n[ERROR] in %s FAT : illegal cxy argument %x\n", |
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| 474 | __FUNCTION__ , cxy ); |
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| 475 | #endif |
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| 476 | this->errno = EINVAL; |
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| 477 | return -1; |
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| 478 | } |
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| 479 | |
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| 480 | fatfs_display_ctx( cxy ); |
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| 481 | } |
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| 482 | else // display nb_slots in page |
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| 483 | { |
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| 484 | uint32_t min = (uint32_t)arg0; |
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| 485 | |
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| 486 | fatfs_display_fat( min , slots ); |
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| 487 | } |
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| 488 | |
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| 489 | break; |
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| 490 | } |
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| 491 | //////////////////// |
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| 492 | case DISPLAY_SOCKET: |
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| 493 | { |
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| 494 | pid_t pid = (pid_t)arg0; |
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| 495 | trdid_t fdid = (trdid_t)arg1; |
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| 496 | |
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| 497 | // get extended pointer on owner process descriptor |
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| 498 | xptr_t owner_xp = cluster_get_owner_process_from_pid( pid ); |
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| 499 | |
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| 500 | if( owner_xp == XPTR_NULL ) |
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| 501 | { |
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| 502 | |
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| 503 | #if DEBUG_SYSCALLS_ERROR |
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| 504 | printk("\n[ERROR] in %s for SOCKET : pid %x not found\n", __FUNCTION__ , pid ); |
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| 505 | #endif |
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| 506 | this->errno = EINVAL; |
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| 507 | return -1; |
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| 508 | } |
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| 509 | |
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| 510 | // get extended pointer on file descriptor |
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| 511 | xptr_t file_xp = process_fd_get_xptr_from_owner( owner_xp , fdid ); |
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| 512 | |
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| 513 | if( file_xp == XPTR_NULL ) |
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| 514 | { |
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| 515 | |
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| 516 | #if DEBUG_SYSCALLS_ERROR |
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| 517 | printk("\n[ERROR] in %s for SOCKET : fdid %d not found\n", __FUNCTION__ , fdid ); |
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| 518 | #endif |
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| 519 | this->errno = EINVAL; |
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| 520 | return -1; |
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| 521 | } |
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| 522 | |
|---|
| 523 | // get local pointer and cluster for file |
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| 524 | vfs_file_t * file_ptr = GET_PTR( file_xp ); |
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| 525 | cxy_t file_cxy = GET_CXY( file_xp ); |
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| 526 | |
|---|
| 527 | // get local pointer on socket descriptor |
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| 528 | socket_t * socket = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
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| 529 | |
|---|
| 530 | // display socket descriptor on TXT0 |
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| 531 | socket_display( XPTR( file_cxy , socket ), __FUNCTION__ , NULL ); |
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| 532 | |
|---|
| 533 | break; |
|---|
| 534 | } |
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| 535 | //////////////// |
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| 536 | case DISPLAY_FD: |
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| 537 | { |
|---|
| 538 | pid_t pid = (pid_t)arg0; |
|---|
| 539 | |
|---|
| 540 | // get extended pointer on owner process descriptor |
|---|
| 541 | xptr_t owner_xp = cluster_get_owner_process_from_pid( pid ); |
|---|
| 542 | |
|---|
| 543 | if( owner_xp == XPTR_NULL ) |
|---|
| 544 | { |
|---|
| 545 | |
|---|
| 546 | #if DEBUG_SYSCALLS_ERROR |
|---|
| 547 | printk("\n[ERROR] in %s for FD : pid %x not found\n", __FUNCTION__ , pid ); |
|---|
| 548 | #endif |
|---|
| 549 | this->errno = EINVAL; |
|---|
| 550 | return -1; |
|---|
| 551 | } |
|---|
| 552 | |
|---|
| 553 | // display fd_array on TXT0 |
|---|
| 554 | process_fd_display( owner_xp ); |
|---|
| 555 | |
|---|
| 556 | break; |
|---|
| 557 | } |
|---|
| 558 | ///////////////////// |
|---|
| 559 | case DISPLAY_WINDOWS: |
|---|
| 560 | { |
|---|
| 561 | pid_t pid = (pid_t)arg0; |
|---|
| 562 | |
|---|
| 563 | if( pid != 0 ) // only one target process |
|---|
| 564 | { |
|---|
| 565 | // get extended pointer on owner process descriptor |
|---|
| 566 | xptr_t owner_xp = cluster_get_owner_process_from_pid( pid ); |
|---|
| 567 | |
|---|
| 568 | if( owner_xp == XPTR_NULL ) |
|---|
| 569 | { |
|---|
| 570 | |
|---|
| 571 | #if DEBUG_SYSCALLS_ERROR |
|---|
| 572 | printk("\n[ERROR] in %s for FD : pid %x not found\n", __FUNCTION__ , pid ); |
|---|
| 573 | #endif |
|---|
| 574 | this->errno = EINVAL; |
|---|
| 575 | return -1; |
|---|
| 576 | } |
|---|
| 577 | } |
|---|
| 578 | |
|---|
| 579 | // display windows state for one, or for all processes |
|---|
| 580 | dev_fbf_display_windows( pid ); |
|---|
| 581 | |
|---|
| 582 | break; |
|---|
| 583 | } |
|---|
| 584 | //////// |
|---|
| 585 | default: |
|---|
| 586 | { |
|---|
| 587 | |
|---|
| 588 | #if DEBUG_SYSCALLS_ERROR |
|---|
| 589 | printk("\n[ERROR] in %s : undefined display type %d\n", |
|---|
| 590 | __FUNCTION__ , type ); |
|---|
| 591 | #endif |
|---|
| 592 | this->errno = EINVAL; |
|---|
| 593 | return -1; |
|---|
| 594 | } |
|---|
| 595 | } // end switch on type |
|---|
| 596 | |
|---|
| 597 | #if (DEBUG_SYS_DISPLAY || CONFIG_INSTRUMENTATION_SYSCALLS) |
|---|
| 598 | uint64_t tm_end = hal_get_cycles(); |
|---|
| 599 | #endif |
|---|
| 600 | |
|---|
| 601 | #if DEBUG_SYS_DISPLAY |
|---|
| 602 | if( DEBUG_SYS_DISPLAY < tm_end ) |
|---|
| 603 | printk("\n[%s] thread[%x,%x] exit / cycle %d\n", |
|---|
| 604 | __FUNCTION__, process->pid, this->trdid, (uint32_t)tm_end ); |
|---|
| 605 | #endif |
|---|
| 606 | |
|---|
| 607 | #if CONFIG_INSTRUMENTATION_SYSCALLS |
|---|
| 608 | hal_atomic_add( &syscalls_cumul_cost[SYS_DISPLAY] , tm_end - tm_start ); |
|---|
| 609 | hal_atomic_add( &syscalls_occurences[SYS_DISPLAY] , 1 ); |
|---|
| 610 | #endif |
|---|
| 611 | |
|---|
| 612 | return 0; |
|---|
| 613 | |
|---|
| 614 | } // end sys_display() |
|---|