1 //===-- ucontext.h ----------------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 // ===----------------------------------------------------------------------=== 9 10 #ifndef GOOGLE_BREAKPAD_COMMON_ANDROID_INCLUDE_SYS_UCONTEXT_H 11 #define GOOGLE_BREAKPAD_COMMON_ANDROID_INCLUDE_SYS_UCONTEXT_H 12 13 #include <sys/cdefs.h> 14 #include <signal.h> 15 16 #ifdef __cplusplus 17 extern "C" { 18 #endif // __cplusplus 19 20 #ifndef __BIONIC_HAVE_UCONTEXT_T 21 22 // Ensure that 'stack_t' is defined. 23 #include <asm/signal.h> 24 25 // This version of the Android C library headers do not provide ucontext_t. 26 // Provide custom definitions for Google Breakpad. 27 #if defined(__arm__) 28 29 // Ensure that 'struct sigcontext' is defined. 30 #include <asm/sigcontext.h> 31 typedef struct sigcontext mcontext_t; 32 33 // The ARM kernel uses a 64-bit signal mask. 34 typedef uint32_t kernel_sigmask_t[2]; 35 36 typedef struct ucontext { 37 uint32_t uc_flags; 38 struct ucontext* uc_link; 39 stack_t uc_stack; 40 mcontext_t uc_mcontext; 41 kernel_sigmask_t uc_sigmask; 42 // Other fields are not used by Google Breakpad. Don't define them. 43 } ucontext_t; 44 45 #elif defined(__i386__) 46 47 /* 80-bit floating-point register */ 48 struct _libc_fpreg { 49 unsigned short significand[4]; 50 unsigned short exponent; 51 }; 52 53 /* Simple floating-point state, see FNSTENV instruction */ 54 struct _libc_fpstate { 55 unsigned long cw; 56 unsigned long sw; 57 unsigned long tag; 58 unsigned long ipoff; 59 unsigned long cssel; 60 unsigned long dataoff; 61 unsigned long datasel; 62 struct _libc_fpreg _st[8]; 63 unsigned long status; 64 }; 65 66 typedef uint32_t greg_t; 67 68 typedef struct { 69 uint32_t gregs[19]; 70 struct _libc_fpstate* fpregs; 71 uint32_t oldmask; 72 uint32_t cr2; 73 } mcontext_t; 74 75 enum { 76 REG_GS = 0, 77 REG_FS, 78 REG_ES, 79 REG_DS, 80 REG_EDI, 81 REG_ESI, 82 REG_EBP, 83 REG_ESP, 84 REG_EBX, 85 REG_EDX, 86 REG_ECX, 87 REG_EAX, 88 REG_TRAPNO, 89 REG_ERR, 90 REG_EIP, 91 REG_CS, 92 REG_EFL, 93 REG_UESP, 94 REG_SS, 95 }; 96 97 // The i386 kernel uses a 64-bit signal mask. 98 typedef uint32_t kernel_sigmask_t[2]; 99 100 typedef struct ucontext { 101 uint32_t uc_flags; 102 struct ucontext* uc_link; 103 stack_t uc_stack; 104 mcontext_t uc_mcontext; 105 kernel_sigmask_t uc_sigmask; 106 struct _libc_fpstate __fpregs_mem; 107 } ucontext_t; 108 109 #elif defined(__mips__) 110 111 typedef struct { 112 uint32_t regmask; 113 uint32_t status; 114 uint64_t pc; 115 uint64_t gregs[32]; 116 uint64_t fpregs[32]; 117 uint32_t acx; 118 uint32_t fpc_csr; 119 uint32_t fpc_eir; 120 uint32_t used_math; 121 uint32_t dsp; 122 uint64_t mdhi; 123 uint64_t mdlo; 124 uint32_t hi1; 125 uint32_t lo1; 126 uint32_t hi2; 127 uint32_t lo2; 128 uint32_t hi3; 129 uint32_t lo3; 130 } mcontext_t; 131 132 // The MIPS kernel uses a 128-bit signal mask. 133 typedef uint32_t kernel_sigmask_t[4]; 134 135 typedef struct ucontext { 136 uint32_t uc_flags; 137 struct ucontext* uc_link; 138 stack_t uc_stack; 139 mcontext_t uc_mcontext; 140 kernel_sigmask_t uc_sigmask; 141 // Other fields are not used by Google Breakpad. Don't define them. 142 } ucontext_t; 143 144 #else 145 # error "Unsupported Android CPU ABI!" 146 #endif 147 148 #endif // __BIONIC_HAVE_UCONTEXT_T 149 150 #ifdef __cplusplus 151 } // extern "C" 152 #endif // __cplusplus 153 154 #endif // GOOGLE_BREAKPAD_COMMON_ANDROID_INCLUDE_SYS_UCONTEXT_H 155
