fancy.cxx

ecos为实时嵌入式操作系统

//==========================================================================
//
//      fancy.cxx
//
//      Fancy formatting trace and assert functions
//
//==========================================================================
//####COPYRIGHTBEGIN####
//
// -------------------------------------------
// The contents of this file are subject to the Cygnus eCos Public License
// Version 1.0 (the "License"); you may not use this file except in
// compliance with the License.  You may obtain a copy of the License at
// http://sourceware.cygnus.com/ecos
// 
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
// License for the specific language governing rights and limitations under
// the License.
// 
// The Original Code is eCos - Embedded Cygnus Operating System, released
// September 30, 1998.
// 
// The Initial Developer of the Original Code is Cygnus.  Portions created
// by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions.  All Rights Reserved.
// -------------------------------------------
//
//####COPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):   nickg
// Contributors:        nickg
// Date:        1997-12-04
// Purpose:     Fancy Trace and assert functions
// Description: The functions in this file are fancy implementations of the
//              standard trace and assert functions. These do printf
//              style formatting, printing the string and arguments.
//
//####DESCRIPTIONEND####
//
//==========================================================================

#include <pkgconf/system.h>
#include <pkgconf/infra.h>

#ifdef CYGDBG_INFRA_DEBUG_TRACE_ASSERT_FANCY

#include <cyg/infra/cyg_type.h>         // base types
#include <cyg/infra/cyg_trac.h>         // tracing macros
#include <cyg/infra/cyg_ass.h>          // assertion macros

#include <pkgconf/hal.h>                // HAL configury
#include <cyg/infra/diag.h>             // HAL polled output
#include <cyg/hal/hal_arch.h>           // architectural stuff for...
#include <cyg/hal/hal_intr.h>           // interrupt control

#ifdef CYGPKG_KERNEL
#include <pkgconf/kernel.h>             // kernel configury
#include <cyg/kernel/thread.hxx>        // thread id to print
#include <cyg/kernel/sched.hxx>         // ancillaries for above
#include <cyg/kernel/thread.inl>        // ancillaries for above
#endif

// -------------------------------------------------------------------------
// Local Configuration: hack me!

// these are generally:
//      if 0, feature is disabled
//      if 1, feature is enabled, printing is default width
//      if >1, field is padded up to that width if necessary
//              (not truncated ever)

#define CYG_FILENAME    20
#define CYG_THREADID    0 // DO NOT SET IF NO KERNEL
#define CYG_LINENUM     4
#define CYG_FUNCNAME    100
#define CYG_DIAG_PRINTF 1
#define CYG_FUNC_INDENT 2

#ifndef CYGPKG_KERNEL
# undef  CYG_THREADID
# define CYG_THREADID 0
#endif

#if CYG_FUNCNAME == 1
#define CYG_FBUF_SIZE   100
#else
#define CYG_FBUF_SIZE   (CYG_FUNCNAME+20)
#endif

// -------------------------------------------------------------------------
// Functions to trim file names and function names down to printable lengths
// (these are shared between trace and assert functions)

#ifdef CYGDBG_USE_TRACING

#if 0
static char * tracepremsgs[] = {
    "  INFO:",
    "ENTER :",
    "ARGS  :",
    "RETURN:",
    "bad code"
};
#endif

static char * tracepremsgs[] = {
    "'",
    "{{",
    "((",
    "}}",
    "bad code"
};

static char * tracepostmsgs[] = {
    "'",
    "",
    "))",
    "",
    "bad code"
};

static void
write_whattrace( cyg_uint32 what )
{
#if CYG_FUNC_INDENT
    static cyg_uint32 cyg_indent = 0;
    if ( 3 == what )
        cyg_indent -= CYG_FUNC_INDENT;
    cyg_uint32 i = cyg_indent;
    for ( ; i > 0; i-- )
        diag_write_string( " " );
#endif // CYG_FUNC_INDENT
    diag_write_string( tracepremsgs[ what > 4 ? 4 : what ] );
#if CYG_FUNC_INDENT
    if ( 1 == what )
        cyg_indent += CYG_FUNC_INDENT;
#endif // CYG_FUNC_INDENT
}

static void
write_whattracepost( cyg_uint32 what )
{
    diag_write_string( tracepostmsgs[ what > 4 ? 4 : what ] );
}
#endif // CYGDBG_USE_TRACING

static const char *trim_file(const char *file)
{
#if CYG_FILENAME
    if ( NULL == file )
        file = "<nofile>";

#if 1 == CYG_FILENAME
    const char *f = file;
    while( *f ) f++;
    while( *f != '/' && f != file ) f--;
    return f==file?f:(f+1);
#else
    static char fbuf2[100];
    const char *f = file;
    char *g = fbuf2;
    while( *f ) f++;
    while( *f != '/' && f != file ) f--;
    if ( f > file ) f++;
    while( *f ) *g++ = *f++;
    while( CYG_FILENAME > (g - fbuf2) ) *g++ = ' ';
    *g = 0;
    return fbuf2;
#endif
#else
    return "";
#endif
}

static const char *trim_func(const char *func)
{
#if CYG_FUNCNAME
    static char fbuf[CYG_FBUF_SIZE];
    int i;
    
    if ( NULL == func )
        func = "<nofunc>";

    for( i = 0; func[i] && func[i] != '(' && i < CYG_FBUF_SIZE-4 ; i++ )
        fbuf[i] = func[i];

    fbuf[i++] = '(';
    fbuf[i++] = ')';
    fbuf[i  ] = 0;
    i=0;
#if 1 == CYG_FUNCNAME
    return &fbuf[i];
#else
    char *p = &fbuf[i];
    while ( *p ) p++;
    while ( CYG_FUNCNAME > (p - (&fbuf[i])) ) *p++ = ' ';
    *p = 0;
    return &fbuf[i];
#endif
#else
    return "";
#endif
}

void write_lnum( cyg_uint32 lnum)
{
#if CYG_LINENUM
    diag_write_char('[');
#if 1 < CYG_LINENUM
    cyg_uint32 i, j;
    for ( i = 2, j = 100; i < CYG_LINENUM ; i++, j *= 10 )
        if ( lnum < j )
            diag_write_char(' ');
#endif    
    diag_write_dec(lnum);
    diag_write_char(']');
    diag_write_char(' ');
#endif
}

void write_thread_id()
{
#if CYG_THREADID    
    Cyg_Thread *t = Cyg_Thread::self();
    cyg_uint16 tid = 0xFFFF;

    if( t != NULL ) tid = t->get_unique_id();

    diag_write_char('<');
    diag_write_hex(tid);
    diag_write_char('>');
#endif
}

// -------------------------------------------------------------------------
// Trace functions:

#ifdef CYGDBG_USE_TRACING

externC void
cyg_tracenomsg( char *psz_func, char *psz_file, cyg_uint32 linenum )
{
    cyg_uint32 old_ints;

    HAL_DISABLE_INTERRUPTS(old_ints);
    DIAG_DEVICE_START_SYNC();

    diag_write_string("TRACE: ");
    write_thread_id();
    diag_write_string(trim_file(psz_file));
    write_lnum(linenum);
    diag_write_string(trim_func(psz_func));
    diag_write_char('\n');

    DIAG_DEVICE_END_SYNC();
    HAL_RESTORE_INTERRUPTS(old_ints);
    
};

// provide every other one of these as a space/caller bloat compromise.

externC void
cyg_tracemsg( cyg_uint32 what, 
              char *psz_func, char *psz_file, cyg_uint32 linenum,
              char *psz_msg )
{
    cyg_uint32 old_ints;

    HAL_DISABLE_INTERRUPTS(old_ints);
    DIAG_DEVICE_START_SYNC();

    if ( NULL == psz_msg )
        psz_msg = "<nomsg>";

    diag_write_string( "TRACE: " );
    write_thread_id();
    diag_write_string(trim_file(psz_file));
    write_lnum(linenum);
    diag_write_string(trim_func(psz_func));
    diag_write_char(' ');
    write_whattrace( what );
    diag_write_string(psz_msg);
    write_whattracepost( what );
    diag_write_char('\n');

    DIAG_DEVICE_END_SYNC();
    HAL_RESTORE_INTERRUPTS(old_ints);

};

externC void
cyg_tracemsg2( cyg_uint32 what, 
               char *psz_func, char *psz_file, cyg_uint32 linenum,
               char *psz_msg,
               CYG_ADDRWORD arg0,  CYG_ADDRWORD arg1 )
{
    cyg_uint32 old_ints;

    HAL_DISABLE_INTERRUPTS(old_ints);
    DIAG_DEVICE_START_SYNC();

    if ( NULL == psz_msg )
        psz_msg = "<nomsg>";

    diag_write_string( "TRACE: " );
    write_thread_id();
    diag_write_string(trim_file(psz_file));
    write_lnum(linenum);
    diag_write_string(trim_func(psz_func));
    diag_write_char(' ');
    write_whattrace( what );
#if CYG_DIAG_PRINTF
    diag_printf( psz_msg, arg0, arg1 );
#else
    diag_write_string(psz_msg);
    diag_write_char(' ');
    diag_write_hex(arg0);
    diag_write_char(' ');
    diag_write_hex(arg1);
#endif    
    write_whattracepost( what );
    diag_write_char('\n');    
    DIAG_DEVICE_END_SYNC();
    HAL_RESTORE_INTERRUPTS(old_ints);
};

externC void
cyg_tracemsg4( cyg_uint32 what, 
               char *psz_func, char *psz_file, cyg_uint32 linenum,
               char *psz_msg,
               CYG_ADDRWORD arg0,  CYG_ADDRWORD arg1,
               CYG_ADDRWORD arg2,  CYG_ADDRWORD arg3 )
{
    cyg_uint32 old_ints;

    HAL_DISABLE_INTERRUPTS(old_ints);
    DIAG_DEVICE_START_SYNC();

    if ( NULL == psz_msg )
        psz_msg = "<nomsg>";

    diag_write_string( "TRACE: " );
    write_thread_id();
    diag_write_string(trim_file(psz_file));
    write_lnum(linenum);
    diag_write_string(trim_func(psz_func));
    diag_write_char(' ');
    write_whattrace( what );
#if CYG_DIAG_PRINTF
    diag_printf( psz_msg, arg0, arg1, arg2, arg3 );
#else
    diag_write_string(psz_msg);
    diag_write_char(' ');
    diag_write_hex(arg0);
    diag_write_char(' ');
    diag_write_hex(arg1);
    diag_write_char(' ');
    diag_write_hex(arg2);
    diag_write_char(' ');
    diag_write_hex(arg3);
#endif    
    write_whattracepost( what );
    diag_write_char('\n');    

    DIAG_DEVICE_END_SYNC();
    HAL_RESTORE_INTERRUPTS(old_ints);
};

externC void
cyg_tracemsg6( cyg_uint32 what, 
               char *psz_func, char *psz_file, cyg_uint32 linenum,
               char *psz_msg,
               CYG_ADDRWORD arg0,  CYG_ADDRWORD arg1,
               CYG_ADDRWORD arg2,  CYG_ADDRWORD arg3,
               CYG_ADDRWORD arg4,  CYG_ADDRWORD arg5 )
{
    cyg_uint32 old_ints;

    HAL_DISABLE_INTERRUPTS(old_ints);
    DIAG_DEVICE_START_SYNC();

    if ( NULL == psz_msg )
        psz_msg = "<nomsg>";

    diag_write_string( "TRACE: " );
    write_thread_id();
    diag_write_string(trim_file(psz_file));
    write_lnum(linenum);
    diag_write_string(trim_func(psz_func));
    diag_write_char(' ');
    write_whattrace( what );
#if CYG_DIAG_PRINTF
    diag_printf( psz_msg, arg0, arg1, arg2, arg3, arg4, arg5 );
#else
    diag_write_string(psz_msg);
    diag_write_char(' ');
    diag_write_hex(arg0);
    diag_write_char(' ');
    diag_write_hex(arg1);
    diag_write_char(' ');
    diag_write_hex(arg2);
    diag_write_char(' ');
    diag_write_hex(arg3);
    diag_write_char(' ');
    diag_write_hex(arg4);
    diag_write_char(' ');
    diag_write_hex(arg5);
#endif    
    write_whattracepost( what );
    diag_write_char('\n');    

    DIAG_DEVICE_END_SYNC();
    HAL_RESTORE_INTERRUPTS(old_ints);
};

externC void
cyg_tracemsg8( cyg_uint32 what, 
               char *psz_func, char *psz_file, cyg_uint32 linenum,
               char *psz_msg,
               CYG_ADDRWORD arg0,  CYG_ADDRWORD arg1,
               CYG_ADDRWORD arg2,  CYG_ADDRWORD arg3,
               CYG_ADDRWORD arg4,  CYG_ADDRWORD arg5,
               CYG_ADDRWORD arg6,  CYG_ADDRWORD arg7 )
{
    cyg_uint32 old_ints;

    HAL_DISABLE_INTERRUPTS(old_ints);
    DIAG_DEVICE_START_SYNC();

    if ( NULL == psz_msg )
        psz_msg = "<nomsg>";

    diag_write_string( "TRACE: " );
    write_thread_id();
    diag_write_string(trim_file(psz_file));
    write_lnum(linenum);
    diag_write_string(trim_func(psz_func));
    diag_write_char(' ');
    write_whattrace( what );
#if CYG_DIAG_PRINTF
    diag_printf( psz_msg, arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7 );
#else
    diag_write_string(psz_msg);
    diag_write_char(' ');
    diag_write_hex(arg0);
    diag_write_char(' ');
    diag_write_hex(arg1);
    diag_write_char(' ');
    diag_write_hex(arg2);
    diag_write_char(' ');
    diag_write_hex(arg3);
    diag_write_char(' ');
    diag_write_hex(arg4);
    diag_write_char(' ');
    diag_write_hex(arg5);
    diag_write_char(' ');
    diag_write_hex(arg6);
    diag_write_char(' ');
    diag_write_hex(arg7);
#endif    
    write_whattracepost( what );
    diag_write_char('\n');    

    DIAG_DEVICE_END_SYNC();
    HAL_RESTORE_INTERRUPTS(old_ints);
};

#endif // CYGDBG_USE_TRACING

// -------------------------------------------------------------------------
// Assert functions:

#ifdef CYGDBG_USE_ASSERTS

externC void
cyg_assert_fail( const char *psz_func, const char *psz_file,
                 cyg_uint32 linenum, const char *psz_msg )
{
    cyg_uint32 old_ints;

    HAL_DISABLE_INTERRUPTS(old_ints);
    DIAG_DEVICE_START_SYNC();

    diag_write_string("ASSERT FAIL: ");
    write_thread_id();
    diag_write_string(trim_file(psz_file));
    write_lnum(linenum);
    diag_write_string(trim_func(psz_func));
    diag_write_char(' ');
    diag_write_string(psz_msg);
    diag_write_char('\n');

    for(;;);
    
//    DIAG_DEVICE_END_SYNC();
//    HAL_RESTORE_INTERRUPTS(old_ints);
};

extern "C"
{
extern unsigned long CYG_LABEL_NAME(stext);
extern unsigned long CYG_LABEL_NAME(etext);

unsigned long stext_addr = (unsigned long)&CYG_LABEL_NAME(stext);
unsigned long etext_addr = (unsigned long)&CYG_LABEL_NAME(etext);
};

externC cyg_bool cyg_check_data_ptr(void *ptr)
{
    unsigned long p = (unsigned long)ptr;
    
    if( p == 0 ) return false;

    if( p > stext_addr && p < etext_addr ) return false;

    return true;
}

externC cyg_bool cyg_check_func_ptr(void (*ptr)(void))
{
    unsigned long p = (unsigned long)ptr;
    
    if( p == 0 ) return false;

    if( p < stext_addr && p > etext_addr ) return false;

    return true;
}

#endif // CYGDBG_USE_ASSERTS

#endif // CYGDBG_INFRA_DEBUG_TRACE_ASSERT_FANCY

// -------------------------------------------------------------------------
// EOF fancy.cxx