Want to Print Partial string in GDB -


i writing gdb macro analyze core , print string. output of string core "sp-4/0/2". need print "sp", excluding others. not sure how achieve in gdb. pointers of great help.

thanks in advance.

see, argv[1] "sp-4/0/2"

(gdb) p argv[1] $4 = 0x7fffffffe3fa "sp-4/0/2"

and 2 first chars:

(gdb) printf "%.2s\n", argv[1] sp

or

(gdb) printf "%c%c\n", argv[1][0],argv[1][1] sp

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