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/*
* Copyright (C) 2016 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _LIBUNWINDSTACK_UCONTEXT_H
#define _LIBUNWINDSTACK_UCONTEXT_H
#include <stdint.h>
namespace unwindstack {
//-------------------------------------------------------------------
// ARM ucontext structures
//-------------------------------------------------------------------
struct arm_stack_t {
uint32_t ss_sp; // void __user*
int32_t ss_flags; // int
uint32_t ss_size; // size_t
};
struct arm_mcontext_t {
uint32_t trap_no; // unsigned long
uint32_t error_code; // unsigned long
uint32_t oldmask; // unsigned long
uint32_t regs[ARM_REG_LAST]; // unsigned long
uint32_t cpsr; // unsigned long
uint32_t fault_address; // unsigned long
};
struct arm_ucontext_t {
uint32_t uc_flags; // unsigned long
uint32_t uc_link; // struct ucontext*
arm_stack_t uc_stack;
arm_mcontext_t uc_mcontext;
// Nothing else is used, so don't define it.
};
//-------------------------------------------------------------------
//-------------------------------------------------------------------
// ARM64 ucontext structures
//-------------------------------------------------------------------
struct arm64_stack_t {
uint64_t ss_sp; // void __user*
int32_t ss_flags; // int
uint64_t ss_size; // size_t
};
struct arm64_sigset_t {
uint64_t sig; // unsigned long
};
struct arm64_mcontext_t {
uint64_t fault_address; // __u64
uint64_t regs[ARM64_REG_LAST]; // __u64
uint64_t pstate; // __u64
// Nothing else is used, so don't define it.
};
struct arm64_ucontext_t {
uint64_t uc_flags; // unsigned long
uint64_t uc_link; // struct ucontext*
arm64_stack_t uc_stack;
arm64_sigset_t uc_sigmask;
// The kernel adds extra padding after uc_sigmask to match glibc sigset_t on ARM64.
char __padding[128 - sizeof(arm64_sigset_t)];
// The full structure requires 16 byte alignment, but our partial structure
// doesn't, so force the alignment.
arm64_mcontext_t uc_mcontext __attribute__((aligned(16)));
};
//-------------------------------------------------------------------
//-------------------------------------------------------------------
// X86 ucontext structures
//-------------------------------------------------------------------
struct x86_stack_t {
uint32_t ss_sp; // void __user*
int32_t ss_flags; // int
uint32_t ss_size; // size_t
};
struct x86_mcontext_t {
uint32_t gs;
uint32_t fs;
uint32_t es;
uint32_t ds;
uint32_t edi;
uint32_t esi;
uint32_t ebp;
uint32_t esp;
uint32_t ebx;
uint32_t edx;
uint32_t ecx;
uint32_t eax;
uint32_t trapno;
uint32_t err;
uint32_t eip;
uint32_t cs;
uint32_t efl;
uint32_t uesp;
uint32_t ss;
// Only care about the registers, skip everything else.
};
struct x86_ucontext_t {
uint32_t uc_flags; // unsigned long
uint32_t uc_link; // struct ucontext*
x86_stack_t uc_stack;
x86_mcontext_t uc_mcontext;
// Nothing else is used, so don't define it.
};
//-------------------------------------------------------------------
//-------------------------------------------------------------------
// X86_64 ucontext structures
//-------------------------------------------------------------------
struct x86_64_stack_t {
uint64_t ss_sp; // void __user*
int32_t ss_flags; // int
uint64_t ss_size; // size_t
};
struct x86_64_mcontext_t {
uint64_t r8;
uint64_t r9;
uint64_t r10;
uint64_t r11;
uint64_t r12;
uint64_t r13;
uint64_t r14;
uint64_t r15;
uint64_t rdi;
uint64_t rsi;
uint64_t rbp;
uint64_t rbx;
uint64_t rdx;
uint64_t rax;
uint64_t rcx;
uint64_t rsp;
uint64_t rip;
uint64_t efl;
uint64_t csgsfs;
uint64_t err;
uint64_t trapno;
uint64_t oldmask;
uint64_t cr2;
// Only care about the registers, skip everything else.
};
struct x86_64_ucontext_t {
uint64_t uc_flags; // unsigned long
uint64_t uc_link; // struct ucontext*
x86_64_stack_t uc_stack;
x86_64_mcontext_t uc_mcontext;
// Nothing else is used, so don't define it.
};
//-------------------------------------------------------------------
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_UCONTEXT_H
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