2020-10-13 15:44:09 +00:00
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// Copyright 2020 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <stdint.h>
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#include "src/base/build_config.h"
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2021-05-27 08:53:25 +00:00
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#include "src/base/sanitizer/asan.h"
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2020-10-13 15:44:09 +00:00
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#include "test/cctest/cctest.h"
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namespace v8 {
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namespace internal {
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#ifdef V8_CC_GNU
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#if V8_HOST_ARCH_X64
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2020-10-14 09:16:11 +00:00
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#define GET_STACK_POINTER_TO(sp_addr) \
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__asm__ __volatile__("mov %%rsp, %0" : "=g"(sp_addr))
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2020-10-13 15:44:09 +00:00
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#elif V8_HOST_ARCH_IA32
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#define GET_STACK_POINTER_TO(sp_addr) \
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__asm__ __volatile__("mov %%esp, %0" : "=g"(sp_addr))
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2020-10-13 15:44:09 +00:00
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#elif V8_HOST_ARCH_ARM
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#define GET_STACK_POINTER_TO(sp_addr) \
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__asm__ __volatile__("str sp, %0" : "=g"(sp_addr))
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#elif V8_HOST_ARCH_ARM64
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#define GET_STACK_POINTER_TO(sp_addr) \
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__asm__ __volatile__("mov x16, sp; str x16, %0" : "=g"(sp_addr))
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2020-10-13 15:44:09 +00:00
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#elif V8_HOST_ARCH_MIPS
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#define GET_STACK_POINTER_TO(sp_addr) \
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__asm__ __volatile__("sw $sp, %0" : "=g"(sp_addr))
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2020-10-13 15:44:09 +00:00
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#elif V8_HOST_ARCH_MIPS64
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#define GET_STACK_POINTER_TO(sp_addr) \
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__asm__ __volatile__("sd $sp, %0" : "=g"(sp_addr))
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#elif defined(__s390x__) || defined(_ARCH_S390X)
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#define GET_STACK_POINTER_TO(sp_addr) \
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__asm__ __volatile__("stg %%r15, %0" : "=m"(sp_addr))
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#elif defined(__s390__) || defined(_ARCH_S390)
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#define GET_STACK_POINTER_TO(sp_addr) \
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__asm__ __volatile__("st 15, %0" : "=m"(sp_addr))
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#elif defined(__PPC64__) || defined(_ARCH_PPC64)
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#define GET_STACK_POINTER_TO(sp_addr) \
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2020-10-15 15:10:21 +00:00
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__asm__ __volatile__("std 1, %0" : "=m"(sp_addr))
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#elif defined(__PPC__) || defined(_ARCH_PPC)
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#define GET_STACK_POINTER_TO(sp_addr) \
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__asm__ __volatile__("stw 1, %0" : "=m"(sp_addr))
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2021-02-09 16:11:55 +00:00
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#elif V8_TARGET_ARCH_RISCV64
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#define GET_STACK_POINTER_TO(sp_addr) \
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__asm__ __volatile__("add %0, sp, x0" : "=r"(sp_addr))
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2021-08-11 11:54:59 +00:00
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#elif V8_HOST_ARCH_LOONG64
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#define GET_STACK_POINTER_TO(sp_addr) \
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__asm__ __volatile__("st.d $sp, %0" : "=m"(sp_addr))
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#else
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#error Host architecture was not detected as supported by v8
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#endif
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2020-10-14 09:16:11 +00:00
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DISABLE_ASAN inline uintptr_t GetStackPointer() {
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// MSAN doesn't seem to treat initializing stores in inline assembly as such,
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// so we initialize this value here.
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uintptr_t sp_addr = 0;
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GET_STACK_POINTER_TO(sp_addr);
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2020-10-13 15:44:09 +00:00
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return sp_addr;
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}
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#endif // V8_CC_GNU
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} // namespace internal
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} // namespace v8
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