//===-- RegisterContextFreeBSDTests.cpp -----------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // clang-format off #include #include // clang-format on #include "gmock/gmock.h" #include "gtest/gtest.h" #include "Plugins/Process/Utility/lldb-x86-register-enums.h" #include "Plugins/Process/Utility/RegisterContextFreeBSD_i386.h" #include "Plugins/Process/Utility/RegisterContextFreeBSD_x86_64.h" using namespace lldb; using namespace lldb_private; std::pair GetRegParams(RegisterInfoInterface &ctx, uint32_t reg) { const RegisterInfo &info = ctx.GetRegisterInfo()[reg]; return {info.byte_offset, info.byte_size}; } #define EXPECT_OFF(regname, offset, size) \ EXPECT_THAT(GetRegParams(reg_ctx, lldb_##regname), \ ::testing::Pair(offset + base_offset, size)) #if defined(__x86_64__) #define EXPECT_GPR_X86_64(regname) \ EXPECT_THAT( \ GetRegParams(reg_ctx, lldb_##regname##_x86_64), \ ::testing::Pair(offsetof(reg, r_##regname), sizeof(reg::r_##regname))) #define EXPECT_DBR_X86_64(num) \ EXPECT_OFF(dr##num##_x86_64, offsetof(dbreg, dr[num]), sizeof(dbreg::dr[num])) TEST(RegisterContextFreeBSDTest, x86_64) { ArchSpec arch{"x86_64-unknown-freebsd"}; RegisterContextFreeBSD_x86_64 reg_ctx{arch}; EXPECT_GPR_X86_64(r15); EXPECT_GPR_X86_64(r14); EXPECT_GPR_X86_64(r13); EXPECT_GPR_X86_64(r12); EXPECT_GPR_X86_64(r11); EXPECT_GPR_X86_64(r10); EXPECT_GPR_X86_64(r9); EXPECT_GPR_X86_64(r8); EXPECT_GPR_X86_64(rdi); EXPECT_GPR_X86_64(rsi); EXPECT_GPR_X86_64(rbp); EXPECT_GPR_X86_64(rbx); EXPECT_GPR_X86_64(rdx); EXPECT_GPR_X86_64(rcx); EXPECT_GPR_X86_64(rax); EXPECT_GPR_X86_64(fs); EXPECT_GPR_X86_64(gs); EXPECT_GPR_X86_64(es); EXPECT_GPR_X86_64(ds); EXPECT_GPR_X86_64(rip); EXPECT_GPR_X86_64(cs); EXPECT_GPR_X86_64(rflags); EXPECT_GPR_X86_64(rsp); EXPECT_GPR_X86_64(ss); // fctrl is the first FPR field, it is used to determine offset of the whole // FPR struct size_t base_offset = reg_ctx.GetRegisterInfo()[lldb_fctrl_x86_64].byte_offset; // assert against FXSAVE struct EXPECT_OFF(fctrl_x86_64, 0x00, 2); EXPECT_OFF(fstat_x86_64, 0x02, 2); // TODO: This is a known bug, abridged ftag should is 8 bits in length. EXPECT_OFF(ftag_x86_64, 0x04, 2); EXPECT_OFF(fop_x86_64, 0x06, 2); // NB: Technically fiseg/foseg are 16-bit long and the higher 16 bits // are reserved. However, LLDB defines them to be 32-bit long for backwards // compatibility, as they were used to reconstruct FIP/FDP before explicit // register entries for them were added. Also, this is still how GDB does it. EXPECT_OFF(fioff_x86_64, 0x08, 4); EXPECT_OFF(fiseg_x86_64, 0x0C, 4); EXPECT_OFF(fip_x86_64, 0x08, 8); EXPECT_OFF(fooff_x86_64, 0x10, 4); EXPECT_OFF(foseg_x86_64, 0x14, 4); EXPECT_OFF(fdp_x86_64, 0x10, 8); EXPECT_OFF(mxcsr_x86_64, 0x18, 4); EXPECT_OFF(mxcsrmask_x86_64, 0x1C, 4); EXPECT_OFF(st0_x86_64, 0x20, 10); EXPECT_OFF(st1_x86_64, 0x30, 10); EXPECT_OFF(st2_x86_64, 0x40, 10); EXPECT_OFF(st3_x86_64, 0x50, 10); EXPECT_OFF(st4_x86_64, 0x60, 10); EXPECT_OFF(st5_x86_64, 0x70, 10); EXPECT_OFF(st6_x86_64, 0x80, 10); EXPECT_OFF(st7_x86_64, 0x90, 10); EXPECT_OFF(mm0_x86_64, 0x20, 8); EXPECT_OFF(mm1_x86_64, 0x30, 8); EXPECT_OFF(mm2_x86_64, 0x40, 8); EXPECT_OFF(mm3_x86_64, 0x50, 8); EXPECT_OFF(mm4_x86_64, 0x60, 8); EXPECT_OFF(mm5_x86_64, 0x70, 8); EXPECT_OFF(mm6_x86_64, 0x80, 8); EXPECT_OFF(mm7_x86_64, 0x90, 8); EXPECT_OFF(xmm0_x86_64, 0xA0, 16); EXPECT_OFF(xmm1_x86_64, 0xB0, 16); EXPECT_OFF(xmm2_x86_64, 0xC0, 16); EXPECT_OFF(xmm3_x86_64, 0xD0, 16); EXPECT_OFF(xmm4_x86_64, 0xE0, 16); EXPECT_OFF(xmm5_x86_64, 0xF0, 16); EXPECT_OFF(xmm6_x86_64, 0x100, 16); EXPECT_OFF(xmm7_x86_64, 0x110, 16); EXPECT_OFF(xmm8_x86_64, 0x120, 16); EXPECT_OFF(xmm9_x86_64, 0x130, 16); EXPECT_OFF(xmm10_x86_64, 0x140, 16); EXPECT_OFF(xmm11_x86_64, 0x150, 16); EXPECT_OFF(xmm12_x86_64, 0x160, 16); EXPECT_OFF(xmm13_x86_64, 0x170, 16); EXPECT_OFF(xmm14_x86_64, 0x180, 16); EXPECT_OFF(xmm15_x86_64, 0x190, 16); base_offset = reg_ctx.GetRegisterInfo()[lldb_dr0_x86_64].byte_offset; EXPECT_DBR_X86_64(0); EXPECT_DBR_X86_64(1); EXPECT_DBR_X86_64(2); EXPECT_DBR_X86_64(3); EXPECT_DBR_X86_64(4); EXPECT_DBR_X86_64(5); EXPECT_DBR_X86_64(6); EXPECT_DBR_X86_64(7); } #endif // defined(__x86_64__) #if defined(__i386__) || defined(__x86_64__) #define EXPECT_GPR_I386(regname) \ EXPECT_THAT(GetRegParams(reg_ctx, lldb_##regname##_i386), \ ::testing::Pair(offsetof(native_i386_regs, r_##regname), \ sizeof(native_i386_regs::r_##regname))) #define EXPECT_DBR_I386(num) \ EXPECT_OFF(dr##num##_i386, offsetof(native_i386_dbregs, dr[num]), \ sizeof(native_i386_dbregs::dr[num])) TEST(RegisterContextFreeBSDTest, i386) { ArchSpec arch{"i686-unknown-freebsd"}; RegisterContextFreeBSD_i386 reg_ctx{arch}; #if defined(__i386__) using native_i386_regs = ::reg; using native_i386_dbregs = ::dbreg; #else using native_i386_regs = ::reg32; using native_i386_dbregs = ::dbreg32; #endif EXPECT_GPR_I386(fs); EXPECT_GPR_I386(es); EXPECT_GPR_I386(ds); EXPECT_GPR_I386(edi); EXPECT_GPR_I386(esi); EXPECT_GPR_I386(ebp); EXPECT_GPR_I386(ebx); EXPECT_GPR_I386(edx); EXPECT_GPR_I386(ecx); EXPECT_GPR_I386(eax); EXPECT_GPR_I386(eip); EXPECT_GPR_I386(cs); EXPECT_GPR_I386(eflags); EXPECT_GPR_I386(esp); EXPECT_GPR_I386(ss); EXPECT_GPR_I386(gs); // fctrl is the first FPR field, it is used to determine offset of the whole // FPR struct size_t base_offset = reg_ctx.GetRegisterInfo()[lldb_fctrl_i386].byte_offset; // assert against FXSAVE struct EXPECT_OFF(fctrl_i386, 0x00, 2); EXPECT_OFF(fstat_i386, 0x02, 2); // TODO: This is a known bug, abridged ftag should is 8 bits in length. EXPECT_OFF(ftag_i386, 0x04, 2); EXPECT_OFF(fop_i386, 0x06, 2); // NB: Technically fiseg/foseg are 16-bit long and the higher 16 bits // are reserved. However, we use them to access/recombine 64-bit FIP/FDP. EXPECT_OFF(fioff_i386, 0x08, 4); EXPECT_OFF(fiseg_i386, 0x0C, 4); EXPECT_OFF(fooff_i386, 0x10, 4); EXPECT_OFF(foseg_i386, 0x14, 4); EXPECT_OFF(mxcsr_i386, 0x18, 4); EXPECT_OFF(mxcsrmask_i386, 0x1C, 4); EXPECT_OFF(st0_i386, 0x20, 10); EXPECT_OFF(st1_i386, 0x30, 10); EXPECT_OFF(st2_i386, 0x40, 10); EXPECT_OFF(st3_i386, 0x50, 10); EXPECT_OFF(st4_i386, 0x60, 10); EXPECT_OFF(st5_i386, 0x70, 10); EXPECT_OFF(st6_i386, 0x80, 10); EXPECT_OFF(st7_i386, 0x90, 10); EXPECT_OFF(mm0_i386, 0x20, 8); EXPECT_OFF(mm1_i386, 0x30, 8); EXPECT_OFF(mm2_i386, 0x40, 8); EXPECT_OFF(mm3_i386, 0x50, 8); EXPECT_OFF(mm4_i386, 0x60, 8); EXPECT_OFF(mm5_i386, 0x70, 8); EXPECT_OFF(mm6_i386, 0x80, 8); EXPECT_OFF(mm7_i386, 0x90, 8); EXPECT_OFF(xmm0_i386, 0xA0, 16); EXPECT_OFF(xmm1_i386, 0xB0, 16); EXPECT_OFF(xmm2_i386, 0xC0, 16); EXPECT_OFF(xmm3_i386, 0xD0, 16); EXPECT_OFF(xmm4_i386, 0xE0, 16); EXPECT_OFF(xmm5_i386, 0xF0, 16); EXPECT_OFF(xmm6_i386, 0x100, 16); EXPECT_OFF(xmm7_i386, 0x110, 16); base_offset = reg_ctx.GetRegisterInfo()[lldb_dr0_i386].byte_offset; EXPECT_DBR_I386(0); EXPECT_DBR_I386(1); EXPECT_DBR_I386(2); EXPECT_DBR_I386(3); EXPECT_DBR_I386(4); EXPECT_DBR_I386(5); EXPECT_DBR_I386(6); EXPECT_DBR_I386(7); } #endif // defined(__i386__) || defined(__x86_64__)