warning: Can't read pathname for load map: Input/output error.Core was generated by `./string'.Program terminated with signal 11, Segmentation fault.#0 0xb752fb8e in __printf_fphex (fp=0x0, info=0x0, args=0x0) at ../stdio-common/printf_fphex.c:177177../stdio-common/printf_fp...
This GDB was configured as "i686-pc-linux-gnu"...Using host libthread_db library "/lib/libthread_db.so.1". warning: Can't read pathname for load map:输入/输出错误. Reading symbols from /lib/libc.so.6...done. Loaded symbols for /lib/libc.so.6 Reading symbols from /lib/ld-linux....
close(3) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7791000 set_thread_area({entry_number:-1 -> 6, base_addr:0xb77916c0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0...
gettimeofday(&s,NULL);// malloc分配内存for(inti =0; i <100000; i++) {void*ptr = mmap(NULL, MEM_LEN, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANON,-1,0);if(ptr == MAP_FAILED) {printf("mmap error!\n");return-1; }// memset(ptr, 0, MEM_LEN);if(munmap(ptr, MEM_LEN)...
首先，任何修改 const 对象的行为都是未定义的（除非修改的是 const 对象的 mutable 成员）。Except ...
编译c 代码时 dpc_new 工具新增参数 CHAR_MAP=STRING。这样会转为 string 处理就可以避免这个问题了。 ODBC 应用程序执行 SQLConnect 函数时报错 【问题描述】 ODBC 应用程序执行 SQLConnect 函数时报错:“SQL_INVALID_HANDLE = -2 checkError function was called with an invalid handle!!”。 【问题分析】 ...
stdio.h>#include<map>staticstd::map<int,int>m;static__attribute__((constructor))voidf(){m[1]=2;}intmain(){printf("main start\n");printf("%d\n",m[1]);}~/test/cpp_test$ g++-o a a.cpp&&./aSegmentationfault(core dumped)~/test...
Introduction 上⼀个lab的主要内容为__data pointer__(指向数据的指针)可能在Linux系统中造成的__segmentation fault__。本次lab将考虑__function pointer__(指向函数/代码的指针)可能造成的错误：segfault或其他exceptions。函数指针 Function Pointers ⼀个函数指针可以像函数⼀样被调⽤，包括传递参数和获得返回...
首先，任何修改 const 对象的行为都是未定义的（除非修改的是 const 对象的 mutable 成员）。Except ...
if (fileptr == MAP_FAILED) { perror("mmap"); close(fd); return -1; } struct FileInfo *fileInfo = (struct FileInfo*)malloc(sizeof(struct FileInfo)); if (fileInfo == NULL) { munmap(fileptr, fileLength); close(fd); return -1; ...