98 lines
3.1 KiB
C++
98 lines
3.1 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _LIBUNWINDSTACK_REGS_GET_LOCAL_H
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#define _LIBUNWINDSTACK_REGS_GET_LOCAL_H
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namespace unwindstack {
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#if defined(__arm__)
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inline __attribute__((__always_inline__)) void AsmGetRegs(void* reg_data) {
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asm volatile(
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".align 2\n"
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"bx pc\n"
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"nop\n"
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".code 32\n"
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"stmia %[base], {r0-r12}\n"
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"add r2, %[base], #52\n"
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"mov r3, r13\n"
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"mov r4, r14\n"
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"mov r5, r15\n"
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"stmia r2, {r3-r5}\n"
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"orr %[base], pc, #1\n"
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"bx %[base]\n"
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: [ base ] "+r"(reg_data)
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:
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: "r2", "r3", "r4", "r5", "memory");
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}
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#elif defined(__aarch64__)
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inline __attribute__((__always_inline__)) void AsmGetRegs(void* reg_data) {
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asm volatile(
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"1:\n"
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"stp x0, x1, [%[base], #0]\n"
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"stp x2, x3, [%[base], #16]\n"
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"stp x4, x5, [%[base], #32]\n"
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"stp x6, x7, [%[base], #48]\n"
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"stp x8, x9, [%[base], #64]\n"
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"stp x10, x11, [%[base], #80]\n"
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"stp x12, x13, [%[base], #96]\n"
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"stp x14, x15, [%[base], #112]\n"
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"stp x16, x17, [%[base], #128]\n"
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"stp x18, x19, [%[base], #144]\n"
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"stp x20, x21, [%[base], #160]\n"
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"stp x22, x23, [%[base], #176]\n"
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"stp x24, x25, [%[base], #192]\n"
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"stp x26, x27, [%[base], #208]\n"
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"stp x28, x29, [%[base], #224]\n"
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"str x30, [%[base], #240]\n"
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"mov x12, sp\n"
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"adr x13, 1b\n"
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"stp x12, x13, [%[base], #248]\n"
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: [base] "+r"(reg_data)
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:
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: "x12", "x13", "memory");
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}
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#elif defined(__i386__) || defined(__x86_64__)
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extern "C" void AsmGetRegs(void* regs);
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#endif
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inline __attribute__((__always_inline__)) void RegsGetLocal(Regs* regs) {
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AsmGetRegs(regs->RawData());
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}
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} // namespace unwindstack
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#endif // _LIBUNWINDSTACK_REGS_GET_LOCAL_H
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