mirror of
https://github.com/chromium/crashpad.git
synced 2024-12-26 06:31:50 +08:00
[fuchsia] Don't build CaptureContext
CaptureContext isn't actually used on Fuchsia and there is a desire to remove `ucontext_t` from Fuchsia as it isn't a real concept on Fuchsia and was only added as a placeholder. Moreover, `ucontext_t` won't ever be added to Fuchsia for RISC-V. Bug: fuchsia:123052 Fixed: fuchsia:131112 Fixed: fuchsia:127655 Tested: `fx test crashpad` on core.x64 emulator Tested: `fx test crashpad` on ARM64 device Tested: `fx shell crasher` @ 16b19a9891978487 on ARM64 device, ran through Breakpad stackwalker locally as well Tested: `fx build crashpad_tests` for minimal.riscv64 Change-Id: I4695054426df78a9deff8c9ea9c478b5bf9701b1 Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4717085 Reviewed-by: Mark Mentovai <mark@chromium.org> Commit-Queue: Thomas Gales <tgales@google.com>
This commit is contained in:
Thomas Gales
Crashpad LUCI CQ
parent
3df478b96d
commit
8dcf2b216f
@ -27,7 +27,10 @@
|
||||
#include "build/build_config.h"
|
||||
#include "build/chromeos_buildflags.h"
|
||||
#include "util/file/file_io.h"
|
||||
|
||||
#if !BUILDFLAG(IS_FUCHSIA)
|
||||
#include "util/misc/capture_context.h"
|
||||
#endif // !BUILDFLAG(IS_FUCHSIA)
|
||||
|
||||
#if BUILDFLAG(IS_APPLE)
|
||||
#include "base/mac/scoped_mach_port.h"
|
||||
|
||||
@ -555,11 +555,12 @@ crashpad_static_library("util") {
|
||||
"fuchsia/scoped_task_suspend.cc",
|
||||
"fuchsia/scoped_task_suspend.h",
|
||||
"fuchsia/traits.h",
|
||||
"misc/capture_context_fuchsia.S",
|
||||
"misc/paths_fuchsia.cc",
|
||||
"process/process_memory_fuchsia.cc",
|
||||
"process/process_memory_fuchsia.h",
|
||||
]
|
||||
|
||||
sources -= [ "misc/capture_context.h" ]
|
||||
}
|
||||
|
||||
public_configs = [ "..:crashpad_config" ]
|
||||
@ -869,7 +870,10 @@ source_set("util_test") {
|
||||
}
|
||||
|
||||
if (crashpad_is_fuchsia) {
|
||||
sources += [ "misc/capture_context_test_util_fuchsia.cc" ]
|
||||
sources -= [
|
||||
"misc/capture_context_test.cc",
|
||||
"misc/capture_context_test_util.h",
|
||||
]
|
||||
}
|
||||
|
||||
if (crashpad_is_win) {
|
||||
|
||||
@ -23,8 +23,6 @@
|
||||
#include <windows.h>
|
||||
#elif BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
|
||||
#include <ucontext.h>
|
||||
#elif BUILDFLAG(IS_FUCHSIA)
|
||||
#include <signal.h>
|
||||
#endif // BUILDFLAG(IS_APPLE)
|
||||
|
||||
namespace crashpad {
|
||||
@ -37,8 +35,7 @@ using NativeCPUContext = arm_unified_thread_state;
|
||||
#endif
|
||||
#elif BUILDFLAG(IS_WIN)
|
||||
using NativeCPUContext = CONTEXT;
|
||||
#elif BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || \
|
||||
BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_FUCHSIA)
|
||||
#elif BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
|
||||
using NativeCPUContext = ucontext_t;
|
||||
#endif // BUILDFLAG(IS_APPLE)
|
||||
|
||||
@ -57,6 +54,9 @@ using NativeCPUContext = ucontext_t;
|
||||
//! `RtlCaptureContext()` capture only the state of the integer registers,
|
||||
//! ignoring floating-point and vector state.
|
||||
//!
|
||||
//! CaptureContext isn't used on Fuchsia, nor does a concept of `ucontext_t`
|
||||
//! exist on Fuchsia.
|
||||
//!
|
||||
//! \param[out] cpu_context The structure to store the context in.
|
||||
//!
|
||||
//! \note The ABI may require that this function's argument is passed by
|
||||
@ -66,7 +66,7 @@ using NativeCPUContext = ucontext_t;
|
||||
//! OS | Architecture | Register
|
||||
//! --------------------|--------------|---------
|
||||
//! Win | x86_64 | `%%rcx`
|
||||
//! macOS/Linux/Fuchsia | x86_64 | `%%rdi`
|
||||
//! macOS/Linux | x86_64 | `%%rdi`
|
||||
//! Linux | ARM/ARM64 | `r0`/`x0`
|
||||
//! Linux | MIPS/MIPS64 | `$a0`
|
||||
//! Linux | RISCV64 | `a0`
|
||||
|
||||
@ -1,255 +0,0 @@
|
||||
// Copyright 2018 The Crashpad Authors
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
// namespace crashpad {
|
||||
// void CaptureContext(ucontext_t* context);
|
||||
// } // namespace crashpad
|
||||
|
||||
#define CAPTURECONTEXT_SYMBOL _ZN8crashpad14CaptureContextEP8ucontext
|
||||
|
||||
.text
|
||||
.globl CAPTURECONTEXT_SYMBOL
|
||||
#if defined(__x86_64__)
|
||||
.balign 16, 0x90
|
||||
#elif defined(__aarch64__)
|
||||
.balign 4, 0x0
|
||||
#elif defined(__riscv)
|
||||
.balign 4, 0x0
|
||||
#endif
|
||||
|
||||
CAPTURECONTEXT_SYMBOL:
|
||||
|
||||
#if defined(__x86_64__)
|
||||
|
||||
.cfi_startproc
|
||||
|
||||
pushq %rbp
|
||||
.cfi_def_cfa_offset 16
|
||||
.cfi_offset %rbp, -16
|
||||
movq %rsp, %rbp
|
||||
.cfi_def_cfa_register %rbp
|
||||
|
||||
// Note that 16-byte stack alignment is not maintained because this function
|
||||
// does not call out to any other.
|
||||
|
||||
// pushfq first, because some instructions (but probably none used here)
|
||||
// affect %rflags. %rflags will be in -8(%rbp).
|
||||
pushfq
|
||||
|
||||
// General-purpose registers whose values haven’t changed can be captured
|
||||
// directly.
|
||||
movq %r8, 0x28(%rdi) // context->uc_mcontext.r8
|
||||
movq %r9, 0x30(%rdi) // context->uc_mcontext.r9
|
||||
movq %r10, 0x38(%rdi) // context->uc_mcontext.r10
|
||||
movq %r11, 0x40(%rdi) // context->uc_mcontext.r11
|
||||
movq %r12, 0x48(%rdi) // context->uc_mcontext.r12
|
||||
movq %r13, 0x50(%rdi) // context->uc_mcontext.r13
|
||||
movq %r14, 0x58(%rdi) // context->uc_mcontext.r14
|
||||
movq %r15, 0x60(%rdi) // context->uc_mcontext.r15
|
||||
|
||||
// Because of the calling convention, there’s no way to recover the value of
|
||||
// the caller’s %rdi as it existed prior to calling this function. This
|
||||
// function captures a snapshot of the register state at its return, which
|
||||
// involves %rdi containing a pointer to its first argument. Callers that
|
||||
// require the value of %rdi prior to calling this function should obtain it
|
||||
// separately. For example:
|
||||
// uint64_t rdi;
|
||||
// asm("movq %%rdi, %0" : "=m"(rdi));
|
||||
movq %rdi, 0x68(%rdi) // context->uc_mcontext.rdi
|
||||
|
||||
movq %rsi, 0x70(%rdi) // context->uc_mcontext.rsi
|
||||
|
||||
// Use %r8 as a scratch register now that it has been saved.
|
||||
// The original %rbp was saved on the stack in this function’s prologue.
|
||||
movq (%rbp), %r8
|
||||
movq %r8, 0x78(%rdi) // context->uc_mcontext.rbp
|
||||
|
||||
// Save the remaining general-purpose registers.
|
||||
movq %rbx, 0x80(%rdi) // context->uc_mcontext.rbx
|
||||
movq %rdx, 0x88(%rdi) // context->uc_mcontext.rdx
|
||||
movq %rax, 0x90(%rdi) // context->uc_mcontext.rax
|
||||
movq %rcx, 0x98(%rdi) // context->uc_mcontext.rcx
|
||||
|
||||
// %rsp was saved in %rbp in this function’s prologue, but the caller’s %rsp
|
||||
// is 16 more than this value: 8 for the original %rbp saved on the stack in
|
||||
// this function’s prologue, and 8 for the return address saved on the stack
|
||||
// by the call instruction that reached this function.
|
||||
leaq 16(%rbp), %r8
|
||||
movq %r8, 0xa0(%rdi) // context->uc_mcontext.rsp
|
||||
|
||||
// The return address saved on the stack used by the call of this function is
|
||||
// likely more useful than the current RIP here.
|
||||
movq 8(%rbp), %r8
|
||||
movq %r8, 0xa8(%rdi) // context->uc_mcontext.rip
|
||||
|
||||
// The original %rflags was saved on the stack above.
|
||||
movq -8(%rbp), %r8
|
||||
movq %r8, 0xb0(%rdi) // context->uc_mcontext.eflags
|
||||
|
||||
// Save the segment registers
|
||||
movw %cs, 0xb8(%rdi) // context->uc_mcontext.cs
|
||||
movw %gs, 0xba(%rdi) // context->uc_mcontext.gs
|
||||
movw %fs, 0xbc(%rdi) // context->uc_mcontext.fs
|
||||
|
||||
xorw %ax, %ax
|
||||
movw %ax, 0xbe(%rdi) // context->uc_mcontext.padding
|
||||
|
||||
// Zero out the remainder of the unused pseudo-registers
|
||||
xorq %r8, %r8
|
||||
movq %r8, 0xc0(%rdi) // context->uc_mcontext.err
|
||||
movq %r8, 0xc8(%rdi) // context->uc_mcontext.trapno
|
||||
movq %r8, 0xd0(%rdi) // context->uc_mcontext.oldmask
|
||||
movq %r8, 0xd8(%rdi) // context->uc_mcontext.cr2
|
||||
|
||||
// Clean up by restoring clobbered registers, even those considered volatile
|
||||
// by the ABI, so that the captured context represents the state at this
|
||||
// function’s exit.
|
||||
movq 0x90(%rdi), %rax
|
||||
movq 0x28(%rdi), %r8
|
||||
|
||||
// TODO(https://crashpad.chromium.org/bug/300): save floating-point registers.
|
||||
|
||||
popfq
|
||||
|
||||
popq %rbp
|
||||
|
||||
ret
|
||||
|
||||
.cfi_endproc
|
||||
|
||||
#elif defined(__aarch64__)
|
||||
|
||||
// Zero out fault_address, which is unused.
|
||||
str x31, [x0, #0xb0] // context->uc_mcontext.fault_address
|
||||
|
||||
// Save general purpose registers in context->uc_mcontext.regs[i].
|
||||
// The original x0 can't be recovered.
|
||||
stp x0, x1, [x0, #0xb8]
|
||||
stp x2, x3, [x0, #0xc8]
|
||||
stp x4, x5, [x0, #0xd8]
|
||||
stp x6, x7, [x0, #0xe8]
|
||||
stp x8, x9, [x0, #0xf8]
|
||||
stp x10, x11, [x0, #0x108]
|
||||
stp x12, x13, [x0, #0x118]
|
||||
stp x14, x15, [x0, #0x128]
|
||||
stp x16, x17, [x0, #0x138]
|
||||
stp x18, x19, [x0, #0x148]
|
||||
stp x20, x21, [x0, #0x158]
|
||||
stp x22, x23, [x0, #0x168]
|
||||
stp x24, x25, [x0, #0x178]
|
||||
stp x26, x27, [x0, #0x188]
|
||||
stp x28, x29, [x0, #0x198]
|
||||
|
||||
// The original LR can't be recovered.
|
||||
str LR, [x0, #0x1a8]
|
||||
|
||||
// Use x1 as a scratch register.
|
||||
mov x1, SP
|
||||
str x1, [x0, #0x1b0] // context->uc_mcontext.sp
|
||||
|
||||
// The link register holds the return address for this function.
|
||||
str LR, [x0, #0x1b8] // context->uc_mcontext.pc
|
||||
|
||||
// pstate should hold SPSR but NZCV are the only bits we know about.
|
||||
mrs x1, NZCV
|
||||
str x1, [x0, #0x1c0] // context->uc_mcontext.pstate
|
||||
|
||||
// Restore x1 from the saved context.
|
||||
ldr x1, [x0, #0xc0]
|
||||
|
||||
// TODO(https://crashpad.chromium.org/bug/300): save floating-point registers.
|
||||
|
||||
ret
|
||||
|
||||
#elif defined(__riscv)
|
||||
|
||||
#define MCONTEXT_GREGS_OFFSET 176
|
||||
|
||||
// x1/ra is the return address. Store it as the pc.
|
||||
// The original x10/a0 can't be recovered.
|
||||
sd x1, (0 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x1, (1 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x2, (2 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x3, (3 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x4, (4 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x5, (5 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x6, (6 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x7, (7 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x8, (8 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x9, (9 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x10, (10 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x11, (11 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x12, (12 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x13, (13 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x14, (14 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x15, (15 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x16, (16 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x17, (17 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x18, (18 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x19, (19 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x20, (20 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x21, (21 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x22, (22 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x23, (23 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x24, (24 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x25, (25 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x26, (26 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x27, (27 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x28, (28 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x29, (29 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x30, (30 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
sd x31, (31 * 8 + MCONTEXT_GREGS_OFFSET)(a0)
|
||||
|
||||
#define MCONTEXT_FPREGS_OFFSET MCONTEXT_GREGS_OFFSET + 32*8
|
||||
|
||||
// Use x31/t6 as scratch register.
|
||||
frcsr x31
|
||||
sw x31, (32 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
|
||||
fsd f0, (0 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f1, (1 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f2, (2 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f3, (3 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f4, (4 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f5, (5 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f6, (6 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f7, (7 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f8, (8 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f9, (9 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f10, (10 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f11, (11 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f12, (12 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f13, (13 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f14, (14 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f15, (15 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f16, (16 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f17, (17 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f18, (18 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f19, (19 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f20, (20 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f21, (21 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f22, (22 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f23, (23 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f24, (24 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f25, (25 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f26, (26 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f27, (27 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f28, (28 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f29, (29 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f30, (30 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
fsd f31, (31 * 8 + MCONTEXT_FPREGS_OFFSET)(a0)
|
||||
|
||||
ret
|
||||
|
||||
#endif // __x86_64__
|
||||
@ -28,15 +28,6 @@ namespace crashpad {
|
||||
namespace test {
|
||||
namespace {
|
||||
|
||||
#if BUILDFLAG(IS_FUCHSIA)
|
||||
// Fuchsia uses -fsanitize=safe-stack by default, which splits local variables
|
||||
// and the call stack into separate regions (see
|
||||
// https://clang.llvm.org/docs/SafeStack.html). Because this test would like to
|
||||
// find an approximately valid stack pointer by comparing locals to the
|
||||
// captured one, disable safe-stack for this function.
|
||||
__attribute__((no_sanitize("safe-stack")))
|
||||
#endif // BUILDFLAG(IS_FUCHSIA)
|
||||
|
||||
#if defined(MEMORY_SANITIZER)
|
||||
// CaptureContext() calls inline assembly and is incompatible with MSan.
|
||||
__attribute__((no_sanitize("memory")))
|
||||
|
||||
@ -1,65 +0,0 @@
|
||||
// Copyright 2018 The Crashpad Authors
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
#include "util/misc/capture_context_test_util.h"
|
||||
|
||||
#include "gtest/gtest.h"
|
||||
#include "util/misc/from_pointer_cast.h"
|
||||
|
||||
namespace crashpad {
|
||||
namespace test {
|
||||
|
||||
#if defined(ARCH_CPU_X86_64)
|
||||
static_assert(offsetof(NativeCPUContext, uc_mcontext) == 0x28,
|
||||
"unexpected mcontext offset");
|
||||
static_assert(offsetof(NativeCPUContext, uc_mcontext.gregs[REG_RSP]) == 0xa0,
|
||||
"unexpected rsp offset");
|
||||
static_assert(offsetof(NativeCPUContext, uc_mcontext.gregs[REG_RIP]) == 0xa8,
|
||||
"unexpected rip offset");
|
||||
#endif // ARCH_CPU_X86_64
|
||||
|
||||
void SanityCheckContext(const NativeCPUContext& context) {
|
||||
#if defined(ARCH_CPU_X86_64)
|
||||
EXPECT_EQ(context.uc_mcontext.gregs[REG_RDI],
|
||||
FromPointerCast<intptr_t>(&context));
|
||||
#elif defined(ARCH_CPU_ARM64)
|
||||
EXPECT_EQ(context.uc_mcontext.regs[0], FromPointerCast<uintptr_t>(&context));
|
||||
#elif defined(ARCH_CPU_RISCV64)
|
||||
EXPECT_EQ(context.uc_mcontext.__gregs[10],
|
||||
FromPointerCast<uintptr_t>(&context));
|
||||
#endif
|
||||
}
|
||||
|
||||
uintptr_t ProgramCounterFromContext(const NativeCPUContext& context) {
|
||||
#if defined(ARCH_CPU_X86_64)
|
||||
return context.uc_mcontext.gregs[REG_RIP];
|
||||
#elif defined(ARCH_CPU_ARM64)
|
||||
return context.uc_mcontext.pc;
|
||||
#elif defined(ARCH_CPU_RISCV64)
|
||||
return context.uc_mcontext.__gregs[0];
|
||||
#endif
|
||||
}
|
||||
|
||||
uintptr_t StackPointerFromContext(const NativeCPUContext& context) {
|
||||
#if defined(ARCH_CPU_X86_64)
|
||||
return context.uc_mcontext.gregs[REG_RSP];
|
||||
#elif defined(ARCH_CPU_ARM64)
|
||||
return context.uc_mcontext.sp;
|
||||
#elif defined(ARCH_CPU_RISCV64)
|
||||
return context.uc_mcontext.__gregs[2];
|
||||
#endif
|
||||
}
|
||||
|
||||
} // namespace test
|
||||
} // namespace crashpad
|
||||
Loading…
x
Reference in New Issue
Block a user