1 | /* |
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2 | * signal.h - signal-management related operations |
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3 | * |
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4 | * Author Ghassan Almaless (2008,2009,2010,2011,2012) |
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5 | * Mohamed Lamine Karaoui (2015) |
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6 | * Alain Greiner (2016,2017) |
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7 | * |
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8 | * Copyright (c) UPMC Sorbonne Universites |
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9 | * |
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10 | * This file is part of ALMOS-MKH. |
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11 | * |
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12 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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13 | * under the terms of the GNU General Public License as published by |
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14 | * the Free Software Foundation; version 2.0 of the License. |
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15 | * |
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16 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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17 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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19 | * General Public License for more details. |
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20 | * |
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21 | * You should have received a copy of the GNU General Public License |
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22 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
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23 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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24 | */ |
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25 | |
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26 | #ifndef _SIGNAL_H_ |
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27 | #define _SIGNAL_H_ |
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28 | |
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29 | #include <hal_types.h> |
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30 | |
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31 | #define SIG_DEFAULT (void*)0L |
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32 | #define SIG_IGNORE (void*)1L |
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33 | #define SIG_ERROR -1L |
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34 | |
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35 | #define SIGHUP 1 /*! hangup */ |
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36 | #define SIGINT 2 /*! interrupt */ |
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37 | #define SIGQUIT 3 /*! quit */ |
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38 | #define SIGILL 4 /*! illegal instruction (not reset when caught) */ |
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39 | #define SIGTRAP 5 /*! trace trap (not reset when caught) */ |
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40 | #define SIGIOT 6 /*! IOT instruction */ |
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41 | #define SIGABRT 6 /*! used by abort, replace SIGIOT in the future */ |
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42 | #define SIGEMT 7 /*! EMT instruction */ |
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43 | #define SIGFPE 8 /*! floating point exception */ |
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44 | #define SIGKILL 9 /*! kill (cannot be caught or ignored) */ |
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45 | #define SIGBUS 10 /*! bus error */ |
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46 | #define SIGSEGV 11 /*! segmentation violation */ |
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47 | #define SIGSYS 12 /*! bad argument to system call */ |
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48 | #define SIGPIPE 13 /*! write on a pipe with no one to read it */ |
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49 | #define SIGALRM 14 /*! alarm clock */ |
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50 | #define SIGTERM 15 /*! software termination signal from kill */ |
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51 | #define SIGURG 16 /*! urgent condition on IO channel */ |
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52 | #define SIGSTOP 17 /*! sendable stop signal not from tty */ |
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53 | #define SIGTSTP 18 /*! stop signal from tty */ |
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54 | #define SIGCONT 19 /*! continue a stopped process */ |
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55 | #define SIGCHLD 20 /*! to parent on child stop or exit */ |
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56 | #define SIGCLD 20 /*! System V name for SIGCHLD */ |
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57 | #define SIGTTIN 21 /*! to readers pgrp upon background tty read */ |
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58 | #define SIGTTOU 22 /*! like TTIN for output if (tp->t_local<OSTOP) */ |
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59 | #define SIGIO 23 /*! input/output possible signal */ |
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60 | #define SIGPOLL SIGIO /*! System V name for SIGIO */ |
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61 | #define SIGXCPU 24 /*! exceeded CPU time limit */ |
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62 | #define SIGXFSZ 25 /*! exceeded file size limit */ |
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63 | #define SIGVTALRM 26 /*! virtual time alarm */ |
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64 | #define SIGPROF 27 /*! profiling time alarm */ |
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65 | #define SIGWINCH 28 /*! window changed */ |
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66 | #define SIGLOST 29 /*! resource lost (eg, record-lock lost) */ |
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67 | #define SIGUSR1 30 /*! user defined signal 1 */ |
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68 | #define SIGUSR2 31 /*! user defined signal 2 */ |
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69 | #define SIG_NR 32 /*! signal 0 implied */ |
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70 | |
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71 | #define SIG_DEFAULT_MASK 0xFFEEFFFF |
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72 | #define SIG_DEFAULT_STACK_SIZE 2048 |
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73 | |
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74 | /**** Forward declarations ****/ |
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75 | |
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76 | struct process_s; |
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77 | struct thread_s; |
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78 | |
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79 | typedef uint32_t sigval_t; |
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80 | typedef uint32_t sigset_t; |
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81 | |
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82 | /******************************************************************************************* |
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83 | * This structure ... TODO |
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84 | ******************************************************************************************/ |
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85 | |
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86 | typedef struct siginfo_s |
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87 | { |
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88 | int si_signo; /*! Signal number */ |
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89 | int si_errno; /*! An errno value */ |
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90 | int si_code; /*! Signal code */ |
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91 | pid_t si_pid; /*! Sending process ID */ |
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92 | uid_t si_uid; /*! Real user ID of sending process */ |
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93 | int si_status; /*! Exit value or signal */ |
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94 | cycle_t si_utime; /*! User time consumed */ |
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95 | cycle_t si_stime; /*! System time consumed */ |
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96 | sigval_t si_value; /*! Signal value */ |
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97 | int si_int; /*! POSIX.1b signal */ |
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98 | void *si_ptr; /*! POSIX.1b signal */ |
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99 | void *si_addr; /*! Memory location which caused fault */ |
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100 | int si_band; /*! Band event */ |
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101 | int si_fd; /*! File descriptor */ |
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102 | } |
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103 | siginfo_t; |
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104 | |
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105 | /******************************************************************************************* |
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106 | * This structure ... TODO |
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107 | ******************************************************************************************/ |
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108 | |
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109 | typedef void (sa_handler_t) ( uint32_t sig ); |
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110 | |
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111 | typedef struct sigaction_s |
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112 | { |
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113 | sigset_t sa_mask; |
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114 | uint32_t sa_flags; |
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115 | union |
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116 | { |
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117 | sa_handler_t *sa_handler; |
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118 | void (*sa_sigaction)(int, siginfo_t *, void *); |
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119 | }; |
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120 | } |
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121 | sigaction_t; |
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122 | |
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123 | /******************************************************************************************* |
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124 | * This structure ... TODO |
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125 | ******************************************************************************************/ |
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126 | |
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127 | typedef struct sig_mgr_s |
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128 | { |
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129 | sa_handler_t * sigactions[SIG_NR]; |
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130 | struct thread_s * handler; |
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131 | } |
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132 | sig_mgr_t; |
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133 | |
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134 | /******************************************************************************************* |
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135 | * This function ... TODO |
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136 | ******************************************************************************************/ |
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137 | int sys_sigreturn_setup( void * sigreturn_func ); |
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138 | |
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139 | |
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140 | /******************************************************************************************* |
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141 | * This function ... TODO |
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142 | ******************************************************************************************/ |
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143 | void signal_manager_init( struct process_s * process ); |
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144 | |
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145 | /******************************************************************************************* |
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146 | * This function register the signal <sig> in the bit-vector of all threads of a given |
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147 | * process identified by its <pid>, in a given cluster. |
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148 | * It must be executed by a thread running in the same cluster as the target threads |
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149 | * (can be a local thread or a RPC thread). |
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150 | ******************************************************************************************* |
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151 | * @ process : local pointer on local target process. |
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152 | * @ sig_id : signal type. |
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153 | ******************************************************************************************/ |
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154 | void signal_rise( struct process_s * process, |
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155 | uint32_t sig_id ); |
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156 | |
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157 | /******************************************************************************************* |
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158 | * This function TODO |
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159 | ******************************************************************************************/ |
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160 | void signal_notify( struct thread_s * this); |
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161 | |
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162 | /******************************************************************************************* |
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163 | * This function do nothing in this implementation. |
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164 | ******************************************************************************************/ |
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165 | #define signal_manager_destroy(task) |
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166 | |
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167 | #endif /*! _SIGNAL_H_ */ |
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