common/stackprot.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  *  Copyright 2021 Broadcom
   4  */
   5
   6 #include <asm/global_data.h>
   7
   8 DECLARE_GLOBAL_DATA_PTR;
   9
  10 unsigned long __stack_chk_guard = (unsigned long)(0xfeedf00ddeadbeef & ~0UL);
  11
  12 void __stack_chk_fail(void)
  13 {
  14         void *ra;
  15
  16         ra = __builtin_extract_return_addr(__builtin_return_address(0));
  17         panic("Stack smashing detected in function:\n%p relocated from %p",
  18               ra, ra - gd->reloc_off);
  19 }
  20
  21 void __stack_chk_fail_local(void)
  22 {
  23         __stack_chk_fail();
  24 }