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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2787 | decky | 1 | /** @addtogroup tdebug |
| 2 | * @{ |
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| 3 | */ |
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| 4 | |||
| 5 | /** |
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| 6 | * @file |
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| 7 | * @brief Task Debugging Syscalls. |
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| 8 | */ |
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| 9 | |||
| 10 | #include <proc/task.h> |
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| 11 | #include <syscall/sysarg64.h> |
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| 12 | #include <syscall/copy.h> |
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| 13 | #include <console/klog.h> |
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| 14 | #include <tdebug/tdebug.h> |
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| 15 | #include <tdebug/systdebug.h> |
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| 16 | |||
| 17 | /** |
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| 18 | * Syscall to start debugging a task. |
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| 19 | * |
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| 20 | * The specified task (target) is attached to the current task (monitor). |
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| 21 | * The monitoring task will be informed of debug events in the |
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| 22 | * target task through IPC notifications with the specified method number. |
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| 23 | */ |
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| 24 | unative_t sys_tdebug_attach_task(sysarg64_t *uspace_taskid_arg, |
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| 25 | unative_t method) |
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| 26 | { |
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| 27 | sysarg64_t taskid_arg; |
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| 28 | int rc; |
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| 29 | |||
| 30 | rc = copy_from_uspace(&taskid_arg, uspace_taskid_arg, sizeof(sysarg64_t)); |
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| 31 | if (rc != 0) |
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| 32 | return (unative_t) rc; |
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| 33 | |||
| 34 | klog_printf("sys_tdebug_attach_task(%lld, %d)", taskid_arg.value, method); |
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| 35 | |||
| 36 | return tdebug_attach_task(taskid_arg.value, method); |
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| 37 | } |
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| 38 | |||
| 39 | /** |
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| 40 | * Syscall to stop debugging a task. |
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| 41 | */ |
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| 42 | unative_t sys_tdebug_detach_task(sysarg64_t *uspace_taskid_arg) |
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| 43 | { |
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| 44 | sysarg64_t taskid_arg; |
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| 45 | int rc; |
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| 46 | |||
| 47 | rc = copy_from_uspace(&taskid_arg, uspace_taskid_arg, sizeof(sysarg64_t)); |
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| 48 | if (rc != 0) |
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| 49 | return (unative_t) rc; |
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| 50 | |||
| 51 | klog_printf("sys_tdebug_detach_task(%lld)", taskid_arg.value); |
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| 52 | |||
| 53 | return tdebug_detach_task(taskid_arg.value); |
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| 54 | } |
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| 55 | |||
| 56 | /** |
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| 57 | * Syscall to resume a thread stopped in a debugging event. |
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| 58 | */ |
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| 59 | unative_t sys_tdebug_continue_thread(sysarg64_t *uspace_threadid_arg) |
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| 60 | { |
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| 61 | sysarg64_t threadid_arg; |
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| 62 | int rc; |
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| 63 | |||
| 64 | rc = copy_from_uspace(&threadid_arg, uspace_threadid_arg, |
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| 65 | sizeof(sysarg64_t)); |
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| 66 | |||
| 67 | if (rc != 0) |
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| 68 | return (unative_t) rc; |
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| 69 | |||
| 70 | klog_printf("sys_tdebug_continue_thread(%lld)", threadid_arg.value); |
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| 71 | |||
| 72 | return tdebug_continue_thread(threadid_arg.value); |
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| 73 | } |
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| 74 | |||
| 75 | /** |
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| 76 | * Syscall to retrieve the arguments of a syscall. |
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| 77 | * |
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| 78 | * When a thread is stopped in a TDEBUG_EV_SYSCALL event, |
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| 79 | * this function may be used to retrieve the arguments of the |
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| 80 | * corresponding syscall. |
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| 81 | */ |
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| 82 | unative_t sys_tdebug_get_syscall_args(sysarg64_t *uspace_threadid_arg, |
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| 83 | uintptr_t *uspace_buffer, unative_t *uspace_len_arg) |
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| 84 | { |
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| 85 | sysarg64_t threadid_arg; |
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| 86 | unative_t len_arg; |
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| 87 | unative_t sc_args[6]; |
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| 88 | int rc; |
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| 89 | |||
| 90 | rc = copy_from_uspace(&threadid_arg, uspace_threadid_arg, |
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| 91 | sizeof(sysarg64_t)); |
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| 92 | |||
| 93 | if (rc != 0) |
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| 94 | return (unative_t) rc; |
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| 95 | |||
| 96 | rc = copy_from_uspace(&len_arg, uspace_len_arg, sizeof(unative_t)); |
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| 97 | |||
| 98 | if (rc != 0) |
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| 99 | return (unative_t) rc; |
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| 100 | |||
| 101 | klog_printf("sys_tdebug_get_syscall_args(%lld,...)", threadid_arg.value); |
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| 102 | |||
| 103 | /* number of args to be copied */ |
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| 104 | if (len_arg > 6) len_arg = 6; |
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| 105 | |||
| 106 | rc = tdebug_get_syscall_args(threadid_arg.value, sc_args); |
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| 107 | if (rc != 0) |
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| 108 | return (unative_t) rc; |
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| 109 | |||
| 110 | rc = copy_to_uspace(uspace_buffer, sc_args, len_arg * sizeof(unative_t)); |
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| 111 | |||
| 112 | if (rc != 0) |
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| 113 | return (unative_t) rc; |
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| 114 | |||
| 115 | /* actual number of syscall args */ |
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| 116 | len_arg = 6; |
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| 117 | |||
| 118 | rc = copy_to_uspace(uspace_len_arg, &len_arg, sizeof(unative_t)); |
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| 119 | |||
| 120 | if (rc != 0) |
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| 121 | return (unative_t) rc; |
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| 122 | |||
| 123 | klog_printf("success\n"); |
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| 124 | return 0; |
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| 125 | } |
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| 126 | |||
| 127 | unative_t sys_tdebug_set_event_mask(sysarg64_t *uspace_threadid_arg, |
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| 128 | unative_t ev_mask) |
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| 129 | { |
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| 130 | sysarg64_t threadid_arg; |
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| 131 | int rc; |
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| 132 | |||
| 133 | rc = copy_from_uspace(&threadid_arg, uspace_threadid_arg, |
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| 134 | sizeof(sysarg64_t)); |
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| 135 | |||
| 136 | if (rc != 0) |
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| 137 | return (unative_t) rc; |
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| 138 | |||
| 139 | klog_printf("sys_tdebug_set_event_mask(%lld)", threadid_arg.value); |
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| 140 | |||
| 141 | return tdebug_set_event_mask(threadid_arg.value, ev_mask); |
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| 142 | } |
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| 143 | |||
| 144 | unative_t sys_tdebug_stop_thread(sysarg64_t *uspace_threadid_arg) |
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| 145 | { |
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| 146 | sysarg64_t threadid_arg; |
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| 147 | int rc; |
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| 148 | |||
| 149 | rc = copy_from_uspace(&threadid_arg, uspace_threadid_arg, |
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| 150 | sizeof(sysarg64_t)); |
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| 151 | |||
| 152 | if (rc != 0) |
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| 153 | return (unative_t) rc; |
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| 154 | |||
| 155 | klog_printf("sys_tdebug_stop_thread(%lld)", threadid_arg.value); |
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| 156 | |||
| 157 | return tdebug_stop_thread(threadid_arg.value); |
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| 158 | } |
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| 159 | |||
| 160 | unative_t sys_tdebug_stop_task(sysarg64_t *uspace_taskid_arg) |
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| 161 | { |
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| 162 | sysarg64_t taskid_arg; |
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| 163 | int rc; |
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| 164 | |||
| 165 | rc = copy_from_uspace(&taskid_arg, uspace_taskid_arg, sizeof(sysarg64_t)); |
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| 166 | if (rc != 0) |
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| 167 | return (unative_t) rc; |
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| 168 | |||
| 169 | klog_printf("sys_tdebug_stop_task(%lld)", taskid_arg.value); |
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| 170 | |||
| 171 | return tdebug_stop_task(taskid_arg.value); |
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| 172 | } |