print [expression] # 打印表达式 p [expression] # 同上 ptype [expression] # 打印表达式的类型 info args # 打印函数参数 info locals # 打印局部变量 info registers # 打印寄存器信息 3.5 修改 修改变量 set variable i = 10 # 将变量 i 设置为 10 set var i = 10 # 同上 p i = 10 # 将变量...
{_M_thread = 8751184979258729844}} __for_range = <error reading variable: Cannot access memory at address 0xa00000009> __for_begin = {_M_id = {_M_thread = 1}} __for_end = {_M_id = {_M_thread = 9892260835563793713}} threads = std::vector of length 3, capacity 4 = {{_M_...
在GDB中设置字符串时,可以使用以下命令: ``` set variable<variable_name> =<string_value>" ``` 其中,`<variable_name>` 是要...
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。 命令 含义 ...
使用print $寄存器名字,如print $pc,查看PC寄存器内容 5.6.设置内存 内存设置的命令为:set key=value。 如果是全局变量,并且存在符号,可以直接对变量赋值,比如: set var rtc_time_in_ram_ = 1或者省略“var”set rtc_time_in_ram_ = 1 如果要修改的内存没有符号,可以通过地址修改其内容,比如设置RTC时间...
/* For a pointer to a textual type, also print the string pointed to, unless pointer is null. */ 所说,对于一个指向文本(字符)结构的指针,除了输出地址之外,还会输出指向的字符串内容(除非指针为0),此时就会真正访问内存地址。 而对于通常的double指针就不会,所以double取地址就不会报错。
variable in the program being debugged. EXP is any valid expression. Use "set variable" for variables with names identical to set subcommands. With a subcommand, this command modifies parts of the gdb environment. You can see these environment settings with the "show" command. ...
$/usr/bin/aarch64-unknown-linux-gnu-pkg-config --exists --print-errors"libdebuginfod >= 0.179"Package libdebuginfod was not found in the pkg-config search path. Perhaps you should add the directory containing `libdebuginfod.pc' to the PKG_CONFIG_PATH environment variable ...
(a few standard names starting with $), or an actual variable in the program being debugged. EXP is any valid expression. Use "set variable" for variables with names identical to set subcommands. With a subcommand, this command modifies parts of the gdb environment. You can see these ...
使用x/s命令打印ASCII字符串,如果是宽字符字符串,需要先看宽字符的长度print sizeof(str)。 如果长度为2,则使用x/hs打印;如果长度为4,则使用x/ws打印。 打印数组 打印指针 打印指定内存地址的值 使用x命令来打印内存的值,格式为x/nfu addr,以f格式打印从addr开始的n个长度单元为u的内存值。