如何在gdb中列出结构体信息？
我可以检查非结构类型，但是在检查结构时，总是得到“Function“struct”未定义。”：
(gdb) l ngx_http_request_t
10
11 #include <ngx_config.h>
12 #include <ngx_core.h>
13
14
15 typedef struct ngx_http_request_s ngx_http_request_t;
16 typedef struct ngx_http_upstream_s ngx_http_upstream_t;
17 typedef struct ngx_http_cache_s ngx_http_cache_t;
18 typedef struct ngx_http_file_cache_s ngx_http_file_cache_t;
19 typedef struct ngx_http_log_ctx_s ngx_http_log_ctx_t;
(gdb) l struct ngx_http_request_s
Function "struct" not defined.
在gdb中可能吗？
I can check non-struct types,but when checking struct,always getting a "Function "struct" not defined.":
(gdb) l ngx_http_request_t
10
11 #include <ngx_config.h>
12 #include <ngx_core.h>
13
14
15 typedef struct ngx_http_request_s ngx_http_request_t;
16 typedef struct ngx_http_upstream_s ngx_http_upstream_t;
17 typedef struct ngx_http_cache_s ngx_http_cache_t;
18 typedef struct ngx_http_file_cache_s ngx_http_file_cache_t;
19 typedef struct ngx_http_log_ctx_s ngx_http_log_ctx_t;
(gdb) l struct ngx_http_request_s
Function "struct" not defined.
Is it possible in gdb?
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尝试 ptype ngx_http_request_t
Try
ptype ngx_http_request_tl通常与行号一起使用来查看特定的代码行，尽管它可以与函数名称一起使用。由于
struct不是行号或函数名，因此您无法查看其定义。您期望什么类型的输出？
看起来您确实想要 struct 中的数据值，这意味着您必须首先创建该类型的结构。
lis usually used with a line number to view a particular line of code, although it can be used with a function name.Because
structis not a line number or a function name, you can not view its definition.What type of output are you expecting?
It looks like you really want the values of the data in the
struct, meaning you have to create a struct of that type first.您可以打印使用该类型声明的变量的值：
(gdb) print foo
You can print the value of the variable declared with that type:
(gdb) print foo