c - Print Complex Structures with GDB -

please consider following structures:

/* complex structure */ typedef struct { char_t  s4_1 [15]; int_t   s4_2; } struct4_st;  typedef struct { char_t  s3_1 [15]; int_t s3_2; } struct3_st;  typedef struct { struct3_st  s2_1; struct4_st  s2_2; } struct2_st;   typedef struct { int_t   s1_1; char_t  s1_2; struct2_st s1_3; } struct1_st;  struct sample {     int_t sample1;     int_t sample2; char_t sample3[20]; struct1_st sample4; } test; 

if put break-point on function containing structure, can print parameters of structure in pretty-print format.

my requirement is:

i want use gdb output write code fill these structures.

is there advanced command gives each struct member on seperate line, like:

gdb$ <command> test 

required output:

test.sample1=1 test.sample2=2; test.sample3="hello" test.sample4.s1_1=3 test.sample4.s1_2='t' 

thanks.

there no built-in command in gdb that.

if gdb python-enabled, isn't hard write yourself.