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comparison: security/sandbox/linux/android_i386_ucontext.h
security/sandbox/linux/android_i386_ucontext.h
- branch
- TOR_BUG_9701
- changeset 3
- 141e0f1194b1
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| -1:000000000000 | 0:2909f9459d15 |
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| 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 /* This file has been imported from | |
| 6 * http://git.chromium.org/gitweb/?p=chromium.git;a=blob;f=sandbox/linux/services/android_i386_ucontext.h;hb=99b3e83972e478a42fa72da1ffefee58413e87d4 | |
| 7 */ | |
| 8 | |
| 9 #ifndef SANDBOX_LINUX_SERVICES_ANDROID_I386_UCONTEXT_H_ | |
| 10 #define SANDBOX_LINUX_SERVICES_ANDROID_I386_UCONTEXT_H_ | |
| 11 | |
| 12 // We do something compatible with glibc. Hopefully, at some point Android will | |
| 13 // provide that for us, and __BIONIC_HAVE_UCONTEXT_T should be defined. | |
| 14 // This is mostly copied from breakpad (common/android/include/sys/ucontext.h), | |
| 15 // except we do use sigset_t for uc_sigmask instead of a custom type. | |
| 16 | |
| 17 #if !defined(__BIONIC_HAVE_UCONTEXT_T) | |
| 18 #include <asm/sigcontext.h> | |
| 19 | |
| 20 /* 80-bit floating-point register */ | |
| 21 struct _libc_fpreg { | |
| 22 unsigned short significand[4]; | |
| 23 unsigned short exponent; | |
| 24 }; | |
| 25 | |
| 26 /* Simple floating-point state, see FNSTENV instruction */ | |
| 27 struct _libc_fpstate { | |
| 28 unsigned long cw; | |
| 29 unsigned long sw; | |
| 30 unsigned long tag; | |
| 31 unsigned long ipoff; | |
| 32 unsigned long cssel; | |
| 33 unsigned long dataoff; | |
| 34 unsigned long datasel; | |
| 35 struct _libc_fpreg _st[8]; | |
| 36 unsigned long status; | |
| 37 }; | |
| 38 | |
| 39 typedef uint32_t greg_t; | |
| 40 | |
| 41 typedef struct { | |
| 42 uint32_t gregs[19]; | |
| 43 struct _libc_fpstate* fpregs; | |
| 44 uint32_t oldmask; | |
| 45 uint32_t cr2; | |
| 46 } mcontext_t; | |
| 47 | |
| 48 enum { | |
| 49 REG_GS = 0, | |
| 50 REG_FS, | |
| 51 REG_ES, | |
| 52 REG_DS, | |
| 53 REG_EDI, | |
| 54 REG_ESI, | |
| 55 REG_EBP, | |
| 56 REG_ESP, | |
| 57 REG_EBX, | |
| 58 REG_EDX, | |
| 59 REG_ECX, | |
| 60 REG_EAX, | |
| 61 REG_TRAPNO, | |
| 62 REG_ERR, | |
| 63 REG_EIP, | |
| 64 REG_CS, | |
| 65 REG_EFL, | |
| 66 REG_UESP, | |
| 67 REG_SS, | |
| 68 }; | |
| 69 | |
| 70 typedef struct ucontext { | |
| 71 uint32_t uc_flags; | |
| 72 struct ucontext* uc_link; | |
| 73 stack_t uc_stack; | |
| 74 mcontext_t uc_mcontext; | |
| 75 sigset_t uc_sigmask; | |
| 76 struct _libc_fpstate __fpregs_mem; | |
| 77 } ucontext_t; | |
| 78 | |
| 79 #else | |
| 80 #include <sys/ucontext.h> | |
| 81 #endif // __BIONIC_HAVE_UCONTEXT_T | |
| 82 | |
| 83 #endif // SANDBOX_LINUX_SERVICES_ANDROID_I386_UCONTEXT_H_ |
