mirekfranc

syntax match BeforeSpace /^  */ containedin=ALL
syntax match AfterSpace /  *$/ containedin=ALL
syntax match InsideSpace "\t  *\t"hs=s+1,he=e-1 containedin=ALL
highlight BeforeSpace ctermbg=DarkBlue
highlight AfterSpace ctermbg=DarkBlue
highlight InsideSpace ctermbg=DarkBlue

mirekfranc

def main_setup (option_parsing, pager=True):
  def decorator (real_main):
    def main_wrapper (): 
      options, argv = option_parsing ()
      if pager and options.use_pager:
        o, pager_is_less = get_pager ()
      else:
        o, pager_is_less = sys.stdout, False
      Colors.setup(enabled = not (options.no_colors or (not os.isatty (o.fileno ()) and not options.keep_colors and not pager_is_less)))
      if options.debug is True:

mirekfranc

import sys

class handling_of_global_exceptions (object):
  def __enter__ (self):
    pass

  def __exit__ (self, e_type, e_val, e_tb):
    if isinstance (e_val, KeyboardInterrupt):
      sys.stderr.write ("\nControl-C.  Let's call it quits.\n")
    elif isinstance (e_val, IOError) and e_val[1] == 'Broken pipe':

mirekfranc

# let's have a code that calls glibc's puts twice

somewhere in the code:

   0x00000000004004c4 <+36>:    bl      0x400490 <puts@plt>

# calling plt stub; return address is in link register (x30)
(gdb) p/x $x30
$2 = 0x4004c8
# bl stands for branch and link; like call on intel, but we use link register instead of top of stack for return adress

mirekfranc

#include <stdio.h>
#include <stdlib.h>


int main (int argc, char *argv[])
{
  long from, i, j = 20L;

  if (argc > 1)
    from = atol (argv[1]);

mirekfranc

#include <iostream>
#include <decimal/decimal>

using namespace std;
using namespace decimal;

int main ()
{
    decimal32 a (1.5);
    decimal64 b (2.2);

mirekfranc

import re, sys

r = re.compile ('\d\d\d\d+')

with open ("b.list", "r") as f, open ("b.list.new", "w") as o:
    n = 1
    for l in f:
        m = r.search (l)
        if m:
            o.write ('{0:4}: https://gcc.gnu.org/bugzilla/show_bug.cgi?id={1}  # {2}'.format (n, m.group (0), l))

mirekfranc

#!/bin/bash
# pre-commit hook for removing whitespace

git diff-index --cached --name-only HEAD | { while read -r f
do
    [[ -d .git ]] || cd $(git rev-parse --show-cdup)
    sed -i 's/\s*$//' "$f"
    git add "$f"
done; }

mirekfranc

# protected -O3
0000000000000710 <bar>:
 710:   48 8d 3d 0e 00 00 00    lea    0xe(%rip),%rdi        # 725 <_fini+0x9>
 717:   e9 b4 fe ff ff          jmpq   5d0 <puts@plt>

# default -O3
0000000000000730 <bar>:
 730:   e9 cb fe ff ff          jmpq   600 <foo@plt>
 735:   0f 1f 00                nopl   (%rax)

mirekfranc

echo 1000 > /proc/self/oom_score_adj
exec $@