reload executable

After changing program, reload executable with file command

(gdb) file gdbprog

pass command-line arguments

(gdb) run arg1 arg2 arg3...

gdb -ex=run --args executable arg1 arg2 arg3...

gdb --eval-command=run --args executable arg1 arg2 arg3...

(gdb) set args arg1 arg2 arg3...
(gdb) run

⚠️ If the run command followed by some arguments like arg11 arg12, the args set by the set command will be overridden.

⚠️ Although set a arg1 arg2 will throw an warning of ambiguous set command "a arg1 arg2": ada, agent, annotate, architecture, args, auto-connect-native-target, auto-load..., the set arg arg1 arg2 works.

Furthermore, set ar arg1 arg2, Ambiguous set command "ar arg1 arg2": architecture, args.

gdb -ex "set args arg1 arg2..." -ex "r" executable

print with x command

x /[Length][Format] [Address expression]

If specified, allows overriding the output format used by the command. Valid format specifiers are:

• o - octal
• x - hexadecimal
• d - decimal
• u - unsigned decimal
• t - binary
• f - floating point
• a - address
• c - char
• s - string
• i - instruction

The following size modifiers are supported:

• b - byte
• h - halfword (16-bit value)
• w - word (32-bit value)
• g - giant word (64-bit value)

(gdb) x/16bx array