find_name.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:1k
- /*
- * BK Id: SCCS/s.find_name.c 1.5 05/17/01 18:14:21 cort
- */
- #include <stdio.h>
- #include <asm/page.h>
- #include <sys/mman.h>
- #include <strings.h>
- /*
- * Finds a given address in the System.map and prints it out
- * with its neighbors. -- Cort
- */
- int main(int argc, char **argv)
- {
- unsigned long addr, cmp, i;
- FILE *f;
- char s[256], last[256];
-
- if ( argc < 2 )
- {
- fprintf(stderr, "Usage: %s <address>n", argv[0]);
- return -1;
- }
- for ( i = 1 ; argv[i] ; i++ )
- {
- sscanf( argv[i], "%0lx", &addr );
- /* adjust if addr is relative to kernelbase */
- if ( addr < PAGE_OFFSET )
- addr += PAGE_OFFSET;
-
- if ( (f = fopen( "System.map", "r" )) == NULL )
- {
- perror("fopen()n");
- exit(-1);
- }
-
- while ( !feof(f) )
- {
- fgets(s, 255 , f);
- sscanf( s, "%0lx", &cmp );
- if ( addr < cmp )
- break;
- strcpy( last, s);
- }
-
- printf( "%s%s", last, s );
- }
- fclose(f);
- return 0;
- }