File: buffer-copy-vla.c

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-10.1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 1,999,140 kB
  • sloc: cpp: 6,951,711; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,033; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,252; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (26 lines) | stat: -rw-r--r-- 579 bytes parent folder | download | duplicates (41) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
 
// RUN: %clang_safestack %s -o %t
// RUN: %run %t

#include "utils.h"

// Test that loads/stores work correctly for VLAs on the unsafe stack.

int main(int argc, char **argv)
{
  int i = 128;
  break_optimization(&i);
  char buffer[i];

  // check that we can write to a buffer
  for (i = 0; argv[0][i] && i < sizeof (buffer) - 1; ++i)
    buffer[i] = argv[0][i];
  buffer[i] = '\0';

  break_optimization(buffer);

  // check that we can read from a buffer
  for (i = 0; argv[0][i] && i < sizeof (buffer) - 1; ++i)
    if (buffer[i] != argv[0][i])
      return 1;
  return 0;
}