CODEWITHSUNDEEP
cgdb
bph
bph

Reputation: 11268

Print preceding 0 when printing hex values in gdb

I'm looking at unsigned char (byte) arrays in gdb, i.e.

(gdb) p/x buf@4
$76 = {0xac, 0xa, 0xb0, 0xa}

Is there a way of forcing the preceding 0s? i.e output like:

$76 = {0xac, 0x0a, 0xb0, 0x0a}

Upvotes: 1

Views: 804

Answers (1)

Shawn
Shawn

Reputation: 52579

From the gdb documentation:

'z'

Like 'x' formatting, the value is treated as an integer and printed as hexadecimal, but leading zeros are printed to pad the value to the size of the integer type.

So...

(gdb) p/z buf@4

Upvotes: 5

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