Cannot access memory at address 0xdeadbeef 确保地址有效(例如通过调试符号或程序逻辑确认)。 动态地址: 若地址来自变量(如指针),可以直接用变量名: bash 复制 (gdb) p *ptr# 打印指针指向的值(gdb) x/x ptr# 直接检查指针指向的内存 寄存器中的地址: 打印寄存器中的地址值: bash 复制 (gdb) x/x$rax#...
size=-1) string_at(addr[, size]) -> string Return the string at addr. ''' getsizeof用于获取对象占用的内存大小...,string_at用于获取指定地址、指定字节长度的内容,因为返回的对象类型是bytes,可以调用hex(...
static struct breakpoint * create_solib_event_breakpoint_1 (struct gdbarch *gdbarch, CORE_ADDR address, enum ugll_insert_mode insert_mode) { struct breakpoint *b; b = create_internal_breakpoint (gdbarch, address, bp_shlib_event, &internal_breakpoint_ops); update_global_location_list_noth...
val_print_string (unresolved_elttype,NULL, address,-1, stream, options); }elseif(cp_is_vtbl_member (type)) {/* Print vtbl's nicely. */CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset);structbound_minimal_symbolmsymbol=lookup_minimal_symbol_by_pc (vt_address);/...
命令作用print &variable查看变量的内存地址watch *(type *)address通过内存地址间接设置断点watch -l variable指定location参数watch variable thread 1仅编号为1的线程修改变量var值时会中断 catchpoint 从字面意思理解,是捕获断点,其主要监测信号的产生。例如c++的throw,或者加载库的时候,产生断点行为。
如果要打印一个序列化过的结构体,这个序列太长的话,往往会被gdb省略掉,如: gdb>p string "xxxx",…"" //会有省略号出现,无法看到完整的字符串 此时可以设置: gdb>set print elements 0 再次: gdb>p string "xxxx","yyyy",""//显示完整的字符串 ...
print 打印值及地址,简写p quit 退出gdb,简写q 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 04. 参考示例 4.1 参考程序 #include <stdio.h> #include <string.h> #include <stdlib.h> int fun(int number) { printf("fun...number = %d\n", number); return...
x /option address 1. 具体选项包括:nfu即, n, number: 显示的单元数量, 默认 1 个单元(u 选项保证) f, format: 格式 Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal), t(binary), f(float), a(address), i(instruction), c(char), s(string) ...
set print address on set print address off show print addressModeson When printing a value of a pointer, GDB will print the raw address along with any other information (e.g. $1 = 0xbffff232 "Hello, World"). off When printing a value of a pointer, GDB will hide the raw address ...
(gdb)printptr $4= (int *) 0x7fffffffe424 (gdb) 多线程 为了方便进行演示,我们创建一个简单的例子,代码如下: #include<chrono> #include<iostream> #include<string> #include<thread> #include<vector> intfun_int(intn){ std::this_thread::sleep_for(std::chrono::seconds(10)); ...