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Fix FREESCALE_EDMA_NBYTES_MLOFFYES_MLOFF() so it works with negative offsets.
author vae
date Wed, 29 Apr 2015 23:31:48 +0000
parents 74dbf4c3f2e1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 //=======================================================================
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2 //
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3 // main.cxx
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4 //
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5 // Default main() function
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6 //
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7 //========================================================================
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8 // ####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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12 //
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13 // eCos is free software; you can redistribute it and/or modify it under
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14 // the terms of the GNU General Public License as published by the Free
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15 // Software Foundation; either version 2 or (at your option) any later
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16 // version.
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17 //
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18 // eCos is distributed in the hope that it will be useful, but WITHOUT
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19 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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21 // for more details.
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22 //
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23 // You should have received a copy of the GNU General Public License
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24 // along with eCos; if not, write to the Free Software Foundation, Inc.,
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25 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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26 //
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27 // As a special exception, if other files instantiate templates or use
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28 // macros or inline functions from this file, or you compile this file
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29 // and link it with other works to produce a work based on this file,
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30 // this file does not by itself cause the resulting work to be covered by
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31 // the GNU General Public License. However the source code for this file
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32 // must still be made available in accordance with section (3) of the GNU
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33 // General Public License v2.
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34 //
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35 // This exception does not invalidate any other reasons why a work based
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36 // on this file might be covered by the GNU General Public License.
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37 // -------------------------------------------
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38 // ####ECOSGPLCOPYRIGHTEND####
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39 //========================================================================
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40 //#####DESCRIPTIONBEGIN####
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41 //
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42 // Author(s): jlarmour
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43 // Contributors:
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44 // Date: 2000-04-30
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45 // Purpose: Provide a default empty main() function
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46 // Description: This file provides a default empty main() function so
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47 // that things don't fall apart if the user starts the
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48 // ISO C environment (the default setting) but doesn't
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49 // provide their own main(). This is taken advantage of
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50 // in some tests (for example)
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51 // Usage: Obviously simply override main() in your own program to
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52 // prevent the use of the one below
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53 //
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54 //####DESCRIPTIONEND####
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55 //
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56 //========================================================================
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57
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58 // CONFIGURATION
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59
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60 #include <pkgconf/system.h> // for CYGPKG_KERNEL
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61
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62 // INCLUDES
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63
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64 #include <cyg/infra/cyg_type.h> // Common type definitions and support
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65 #include <cyg/infra/cyg_trac.h> // Common tracing support
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66 #include <cyg/infra/cyg_ass.h> // Common assertion support
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67
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68 #ifdef CYGPKG_KERNEL
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69 # include <pkgconf/kernel.h> // kernel configuration
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70 # include <cyg/kernel/thread.hxx> // For thread suspend
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71 # include <cyg/kernel/thread.inl>
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72 #endif
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73
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74 // FUNCTION PROTOTYPES
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75
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76 // We provide a weakly named main to allow this to link if the user
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77 // doesn't provide their own main. This isn't strictly good behaviour,
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78 // but if the user wants good performance then of _course_ they should
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79 // play with the config options and this won't be called. Or it might
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80 // be "giving them enough rope" etc. :-)
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81
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82 externC int
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83 main( int argc, char *argv[] ) __attribute__((weak));
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84
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85 externC void
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86 cyg_user_start(void);
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87
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88 // FUNCTIONS
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89
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90 externC int
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91 main( int argc, char *argv[] )
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92 {
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93 CYG_REPORT_FUNCNAMETYPE("main", "returning %d" );
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94
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95 // try to be helpful by diagnosing malformed arguments
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96 CYG_PRECONDITION( argv != NULL, "argv is NULL!" );
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97 CYG_PRECONDITION( argv[argc] == NULL, "argv[argc] isn't NULL!" );
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98
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99 CYG_REPORT_FUNCARG2("argc=%d, argv[0]=%s", argc,
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100 (CYG_ADDRWORD)((argv[0]==NULL) ? "NULL" : argv[0]) );
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101
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102 CYG_TRACE0( true, "This is the system-supplied default main()" );
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103
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104 // If the kernel isn't present then cyg_libc_invoke_main() will have assumed
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105 // main() is present and will call it. But if we're here, then
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106 // evidently the user didn't supply one - which can't be right. So we
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107 // assume that they have useful code to run in cyg_user_start() instead.
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108 // Its better than just exiting
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109 #ifndef CYGPKG_KERNEL
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110 cyg_user_start();
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111 #else
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112 // Otherwise we suspend ourselves. This prevents problems caused by
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113 // running atexit() handlers.
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114 Cyg_Thread::self()->suspend();
115
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115 #endif
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116
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117 CYG_REPORT_RETVAL(0);
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118 return 0; // some CPUs have 0 hard-wired - faster than a reg
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119 } // main()
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120
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121 // EOF main.cxx