sandbox/linux/system_headers/arm_linux_ucontext.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef SANDBOX_LINUX_SYSTEM_HEADERS_ARM_LINUX_UCONTEXT_H_
   6 #define SANDBOX_LINUX_SYSTEM_HEADERS_ARM_LINUX_UCONTEXT_H_
   7
   8 #if !defined(__BIONIC_HAVE_UCONTEXT_T)
   9 #if !defined(__native_client_nonsfi__)
  10 #include <asm/sigcontext.h>
  11 #else
  12 // In PNaCl toolchain, sigcontext and stack_t is not defined. So here declare
  13 // them.
  14 struct sigcontext {
  15   unsigned long trap_no;
  16   unsigned long error_code;
  17   unsigned long oldmask;
  18   unsigned long arm_r0;
  19   unsigned long arm_r1;
  20   unsigned long arm_r2;
  21   unsigned long arm_r3;
  22   unsigned long arm_r4;
  23   unsigned long arm_r5;
  24   unsigned long arm_r6;
  25   unsigned long arm_r7;
  26   unsigned long arm_r8;
  27   unsigned long arm_r9;
  28   unsigned long arm_r10;
  29   unsigned long arm_fp;
  30   unsigned long arm_ip;
  31   unsigned long arm_sp;
  32   unsigned long arm_lr;
  33   unsigned long arm_pc;
  34   unsigned long arm_cpsr;
  35   unsigned long fault_address;
  36 };
  37
  38 typedef struct sigaltstack {
  39   void* ss_sp;
  40   int ss_flags;
  41   size_t ss_size;
  42 } stack_t;
  43
  44 #endif
  45
  46 // We also need greg_t for the sandbox, include it in this header as well.
  47 typedef unsigned long greg_t;
  48
  49 // typedef unsigned long sigset_t;
  50 typedef struct ucontext {
  51   unsigned long uc_flags;
  52   struct ucontext* uc_link;
  53   stack_t uc_stack;
  54   struct sigcontext uc_mcontext;
  55   sigset_t uc_sigmask;
  56   /* Allow for uc_sigmask growth.  Glibc uses a 1024-bit sigset_t.  */
  57   int __not_used[32 - (sizeof(sigset_t) / sizeof(int))];
  58   /* Last for extensibility.  Eight byte aligned because some
  59      coprocessors require eight byte alignment.  */
  60   unsigned long uc_regspace[128] __attribute__((__aligned__(8)));
  61 } ucontext_t;
  62
  63 #else
  64 #include <sys/ucontext.h>
  65 #endif  // __BIONIC_HAVE_UCONTEXT_T
  66
  67 #endif  // SANDBOX_LINUX_SYSTEM_HEADERS_ARM_LINUX_UCONTEXT_H_