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// Android runs a fairly new Linux kernel, so signal info is there,
// but the C library doesn't have the structs defined.

struct sigcontext {
  uint32_t trap_no;
  uint32_t error_code;
  uint32_t oldmask;
  uint32_t gregs[16];
  uint32_t arm_cpsr;
  uint32_t fault_address;
};
typedef uint32_t __sigset_t;
typedef struct sigcontext mcontext_t;
typedef struct ucontext {
  uint32_t uc_flags;
  struct ucontext* uc_link;
  stack_t uc_stack;
  mcontext_t uc_mcontext;
  __sigset_t uc_sigmask;
} ucontext_t;
enum ArmRegisters {R0 = 0, R1 = 1, R2 = 2, R3 = 3, R4 = 4, R5 = 5,
                   R6 = 6, R7 = 7, R8 = 8, R9 = 9, R10 = 10,
                   R11 = 11, R12 = 12, R13 = 13, R14 = 14, R15 = 15};