File: alloca_detect_custom_size.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A12.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 959,712 kB
  • sloc: cpp: 3,275,382; ansic: 2,061,766; ada: 840,956; f90: 208,513; makefile: 76,132; asm: 73,433; xml: 50,448; exp: 34,146; sh: 32,436; objc: 15,637; fortran: 14,012; python: 11,991; pascal: 6,787; awk: 4,779; perl: 3,054; yacc: 338; ml: 285; lex: 201; haskell: 122
file content (27 lines) | stat: -rw-r--r-- 810 bytes parent folder | download | duplicates (4) 
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
27
 
/* { dg-do run } */
/* { dg-shouldfail "asan" } */

#include <assert.h>

struct A {
  char a[3];
  int b[3];
};

volatile int ten = 10;

__attribute__((noinline)) void foo(int index, int len) {
  volatile struct A str[len] __attribute__((aligned(32)));
  assert(!((long) str & 31L));
  str[index].a[0] = '1'; // BOOM
}

int main(int argc, char **argv) {
  foo(ten, ten);
  return 0;
}

/* { dg-output "WRITE of size 1 at 0x\[0-9a-f\]+ thread T0\[^\n\r]*(\n|\r\n|\r)" } */
/* { dg-output "    #0 0x\[0-9a-f\]+ +(in _*foo(\[^\n\r]*alloca_detect_custom_size.c:16|\[^\n\r]*:0|\[^\n\r]*\\+0x\[0-9a-z\]*)|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */
/* { dg-output "\[^\n\r]*Address 0x\[0-9a-f\]+ is located in stack of thread T0.*(\n|\r\n|\r)" */
/* { dg-output "\[^\n\r]*in foo.*alloca_detect_custom_size.c.*(\n|\r\n|\r)" */