LXR linux/arch/um/include/shared/longjmp.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __UML_LONGJMP_H
   3#define __UML_LONGJMP_H
   4
   5#include <sysdep/archsetjmp.h>
   6#include <os.h>
   7
   8extern int signals_enabled;
   9extern int setjmp(jmp_buf);
  10extern void longjmp(jmp_buf, int);
  11
  12#define UML_LONGJMP(buf, val) do { \
  13        longjmp(*buf, val);     \
  14} while(0)
  15
  16#define UML_SETJMP(buf) ({                              \
  17        int n, enable;                                  \
  18        enable = *(volatile int *)&signals_enabled;     \
  19        n = setjmp(*buf);                               \
  20        if(n != 0)                                      \
  21                set_signals_trace(enable);              \
  22        n; })
  23
  24#endif
  25