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  • rtems task

    [root@centos7 hello_world_c]# aarch64-rtems6-gdb   o-optimize/hello.exe 
    GNU gdb (GDB) 10.1.90.20210409-git
    Copyright (C) 2021 Free Software Foundation, Inc.
    License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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    There is NO WARRANTY, to the extent permitted by law.
    Type "show copying" and "show warranty" for details.
    This GDB was configured as "--host=aarch64-linux-gnu --target=aarch64-rtems6".
    Type "show configuration" for configuration details.
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    For help, type "help".
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    Reading symbols from o-optimize/hello.exe...
    (gdb) target remote :8889
    Remote debugging using :8889
    bsp_vector_table_begin () at ../../../bsps/aarch64/shared/start/start.S:55
    55        mov x5, x1    /* machine type number or ~0 for DT boot */
    (gdb) b 
    Breakpoint 1 at 0x40008000: file ../../../bsps/aarch64/shared/start/start.S, line 55.
    (gdb) b rtems_task Init
    Function "rtems_task Init" not defined.
    Make breakpoint pending on future shared library load? (y or [n]) n
    (gdb) b rtems_task_create
    Breakpoint 2 at 0x4000ee10: file ../../../cpukit/rtems/src/taskcreate.c, line 77.
    (gdb) c
    Continuing.
    
    Breakpoint 2, rtems_task_create (name=name@entry=1430860064, initial_priority=initial_priority@entry=1, stack_size=stack_size@entry=10240, initial_modes=initial_modes@entry=256, attribute_set=attribute_set@entry=0, 
        id=id@entry=0x40108c8c <_ISR_Stack_area_begin+9164>) at ../../../cpukit/rtems/src/taskcreate.c:77
    77        memset( &config, 0, sizeof( config ) );
    (gdb) bt
    #0  rtems_task_create (name=name@entry=1430860064, initial_priority=initial_priority@entry=1, stack_size=stack_size@entry=10240, initial_modes=initial_modes@entry=256, attribute_set=attribute_set@entry=0, 
        id=id@entry=0x40108c8c <_ISR_Stack_area_begin+9164>) at ../../../cpukit/rtems/src/taskcreate.c:77
    #1  0x000000004000eeac in _RTEMS_tasks_Initialize_user_task () at ../../../cpukit/rtems/src/taskinitusers.c:35
    #2  0x000000004000f060 in rtems_initialize_executive () at ../../../cpukit/sapi/src/exinit.c:116
    #3  0x0000000040008c7c in boot_card (cmdline=<optimized out>) at ../../../bsps/shared/start/bootcard.c:55
    #4  0x00000000400080cc in _el1_start () at ../../../bsps/aarch64/shared/start/start.S:308
    Backtrace stopped: previous frame identical to this frame (corrupt stack?)
    (gdb) b rtems_task_start
    Breakpoint 3 at 0x4000eee0: file ../../../cpukit/rtems/src/taskstart.c, line 33.
    (gdb) b rtems_task_delete
    Function "rtems_task_delete" not defined.
    Make breakpoint pending on future shared library load? (y or [n]) n
    (gdb) c
    Continuing.
    
    Breakpoint 3, rtems_task_start (id=167837697, entry_point=entry_point@entry=0x40008900 <Init>, argument=argument@entry=1074801928) at ../../../cpukit/rtems/src/taskstart.c:33
    33        Thread_Entry_information entry = {
    (gdb) bt
    #0  rtems_task_start (id=167837697, entry_point=entry_point@entry=0x40008900 <Init>, argument=argument@entry=1074801928) at ../../../cpukit/rtems/src/taskstart.c:33
    #1  0x000000004000eec0 in _RTEMS_tasks_Initialize_user_task () at ../../../cpukit/rtems/src/taskinitusers.c:47
    #2  0x000000004000f060 in rtems_initialize_executive () at ../../../cpukit/sapi/src/exinit.c:116
    #3  0x0000000040008c7c in boot_card (cmdline=<optimized out>) at ../../../bsps/shared/start/bootcard.c:55
    #4  0x00000000400080cc in _el1_start () at ../../../bsps/aarch64/shared/start/start.S:308
    Backtrace stopped: previous frame identical to this frame (corrupt stack?)
    (gdb) s
    46        if ( entry_point == NULL ) {
    (gdb) list
    41        };
    42        Thread_Control   *the_thread;
    43        ISR_lock_Context  lock_context;
    44        Status_Control    status;
    45
    46        if ( entry_point == NULL ) {
    47          return RTEMS_INVALID_ADDRESS;
    48        }
    49
    50        the_thread = _Thread_Get( id, &lock_context );
    (gdb) b  _Thread_Start
    Breakpoint 4 at 0x40013340: file ../../../cpukit/score/src/threadstart.c, line 35.
    (gdb) c
    Continuing.
    
    Breakpoint 4, _Thread_Start (the_thread=0x40102090 <_RTEMS_tasks_Objects>, entry=entry@entry=0x40108c48 <_ISR_Stack_area_begin+9096>, lock_context=lock_context@entry=0x40108c40 <_ISR_Stack_area_begin+9088>) at ../../../cpukit/score/src/threadstart.c:35
    35        _Thread_State_acquire_critical( the_thread, lock_context );
    (gdb) b printf
    Function "printf" not defined.
    Make breakpoint pending on future shared library load? (y or [n]) n
    (gdb) b test.c:13
    Breakpoint 5 at 0x40008900: file test.c, line 13.
    (gdb) c
    Continuing.
    
    Breakpoint 5, Init (ignored=1074801928) at test.c:13
    13        printf( "\n\n*** HELLO WORLD TEST ***\n" );
    (gdb) bt
    #0  Init (ignored=1074801928) at test.c:13
    #1  0x0000000040011e64 in _Thread_Handler () at ../../../cpukit/score/src/threadhandler.c:145
    #2  0x0000000040011e00 in ?? ()
    Backtrace stopped: not enough registers or memory available to unwind further
    (gdb) c
    Continuing.
    [Inferior 1 (process 1) exited normally]
    (gdb) quit
    [root@centos7 hello_world_c]# 
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  • 原文地址:https://www.cnblogs.com/dream397/p/15401580.html
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