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Old

x86_64 software issues part 1

Posted 03-06-2012 at 09:39 AM by Rod3775

This was my first experience with 64 bit software. I did a stock install of Slackware64, and ran into the following issues:
(a) wpa_supplicant could not reauthenticate after a disconnect.
(b) wmctrl did not work correctly (could not return window list)
(a) I tried to patch wpa_cli to monitor wpa_supplicant and restart it, and discovered that when it is compiled with -O2 (as specified in its Makefile), gcc-4.5.2 compiled bad code - the return value of a function returning...
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Old

See source code intermixed with assembly

Posted 01-16-2012 at 03:25 AM by hydraMax (Bits and Pixels)

Maybe everybody else already knows this, but I thought it was pretty neat anyway:

If you compile some C code with -g option (to include debugging symbols), you can then use objdump on the binary, with the -S switch, to get source code intermixed with assembly. For example, here is a snippet from one of my binaries:

Code:
int main() {
  401163:       55                      push   %rbp
  401164:       48 89 e5                mov    %rsp,%rbp
  401167:
...
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