126 lines
2.4 KiB
C
126 lines
2.4 KiB
C
//////////////////////////////////////////////////
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//Title : wxc_debug.c
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//Auhtor : Liu Wei
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//Desc : wxc debug api implemetation
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//Created : 2007-05-01
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//Revision :
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//
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//Revision :
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//
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//////////////////////////////////////////////////
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#include "stdio.h"
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#include "assert.h"
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#include "string.h"
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#include "stdlib.h"
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#include <execinfo.h>
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#include <signal.h>
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void dump(int signo)
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{
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char buf[1024];
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char cmd[1024];
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FILE *fh;
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snprintf(buf, sizeof(buf), "/proc/%d/cmdline", getpid());
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if(!(fh = fopen(buf, "r")))
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exit(0);
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if(!fgets(buf, sizeof(buf), fh))
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exit(0);
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fclose(fh);
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if(buf[strlen(buf) - 1] == '\n')
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buf[strlen(buf) - 1] = '\0';
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snprintf(cmd, sizeof(cmd), "gdb %s %d", buf, getpid());
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system(cmd);
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exit(0);
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}
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void WxcBackTrace()
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{
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int i;
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void * array[25];
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int nSize = backtrace(array, 25);
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char ** symbols = backtrace_symbols(array, nSize);
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for (i = 0; i < nSize; i++)
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{
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printf("%s \n" , symbols[i]);
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}
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free(symbols);
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}
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typedef unsigned char BYTE;
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#define WxcAssert(uVal,pStr) \
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if(!(uVal)) \
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{ \
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WxcBackTrace(); \
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} \
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assert( uVal && pStr ); \
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void sprintf_bcd( const BYTE *pBcdBuff , int nBcdLen , char *pStrBuff , int nStrBuffSize )
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{
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int i ,len = 0;
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int nChar;
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nChar = ( nBcdLen % 8 )* 3 + ( nBcdLen / 8 ) * 25 + 1 ;
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WxcAssert((nChar < nStrBuffSize),"sprint bcd string buffer flow");
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for( i = 1 ; i <= nBcdLen; i ++ )
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{
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sprintf ( pStrBuff + len , "%02X ", pBcdBuff[i-1] );
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len += 3;
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if( 0 == (i % 16) )
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{
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strcat ( pStrBuff , "\n");
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len++;
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}
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else if( 0 == (i % 8) )
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{
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strcat ( pStrBuff , " ");
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len++;
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}
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}
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if( 0 != (len % 50) )
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{
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strcat ( pStrBuff , "\n");
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}
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}
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void testdump(char *p)
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{
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*p =0;
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}
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void main()
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{
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BYTE aBCDBuff[128];
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char temp[256] ;
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int i , j;
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char *p ;
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p = NULL;
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signal(SIGSEGV, &dump);
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for( i = 0 ; i < 128 ; i ++ )
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{
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if( i < 80 )
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aBCDBuff[i] = (BYTE)(1 + i) ;
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else
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aBCDBuff[i] = (BYTE)(256 - i*2) ;
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}
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for( j = 30 ; j < 100 ; j+=7 )
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{
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sprintf_bcd(aBCDBuff , j , temp , 256 );
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printf("BCD:\r\n%s\r\n", temp);
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}
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testdump(p);
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getchar();
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}
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