blob: 9fc5db28c48a27202d017ff045efb1cdf8b5970d [file] [log] [blame]
// Copyright 2018 The Crashpad Authors. All rights reserved.
//
// 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 "base/logging.h"
#include "gtest/gtest.h"
#include "util/misc/from_pointer_cast.h"
namespace crashpad {
namespace test {
void SanityCheckContext(const NativeCPUContext& context) {
#if defined(ARCH_CPU_X86)
// TODO(jperaza): fpregs is nullptr until CaptureContext() supports capturing
// floating point context.
EXPECT_EQ(context.uc_mcontext.fpregs, nullptr);
#elif defined(ARCH_CPU_X86_64)
EXPECT_EQ(context.uc_mcontext.gregs[REG_RDI],
FromPointerCast<intptr_t>(&context));
EXPECT_EQ(context.uc_mcontext.fpregs, nullptr);
#elif defined(ARCH_CPU_ARMEL)
EXPECT_EQ(context.uc_mcontext.arm_r0, FromPointerCast<uintptr_t>(&context));
#elif defined(ARCH_CPU_ARM64)
EXPECT_EQ(context.uc_mcontext.regs[0], FromPointerCast<uintptr_t>(&context));
#elif defined(ARCH_CPU_MIPS_FAMILY)
EXPECT_EQ(context.uc_mcontext.gregs[4], FromPointerCast<uintptr_t>(&context));
#endif
}
uintptr_t ProgramCounterFromContext(const NativeCPUContext& context) {
#if defined(ARCH_CPU_X86)
return context.uc_mcontext.gregs[REG_EIP];
#elif defined(ARCH_CPU_X86_64)
return context.uc_mcontext.gregs[REG_RIP];
#elif defined(ARCH_CPU_ARMEL)
return context.uc_mcontext.arm_pc;
#elif defined(ARCH_CPU_ARM64)
return context.uc_mcontext.pc;
#elif defined(ARCH_CPU_MIPS_FAMILY)
return context.uc_mcontext.pc;
#endif
}
uintptr_t StackPointerFromContext(const NativeCPUContext& context) {
#if defined(ARCH_CPU_X86)
return context.uc_mcontext.gregs[REG_ESP];
#elif defined(ARCH_CPU_X86_64)
return context.uc_mcontext.gregs[REG_RSP];
#elif defined(ARCH_CPU_ARMEL)
return context.uc_mcontext.arm_sp;
#elif defined(ARCH_CPU_ARM64)
return context.uc_mcontext.sp;
#elif defined(ARCH_CPU_MIPS_FAMILY)
return context.uc_mcontext.gregs[29];
#endif
}
} // namespace test
} // namespace crashpad