xref: /llvm-project/lldb/unittests/Process/Utility/RegisterContextNetBSDTest_i386.cpp (revision 56440359d093ea6f8e9c91064fdd47928cf07092)
1 //===-- RegisterContextNetBSDTest_i386.cpp --------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #if defined(__i386__) || defined(__x86_64__)
10 
11 // clang-format off
12 #include <sys/types.h>
13 #include <i386/reg.h>
14 // clang-format on
15 
16 #include "gmock/gmock.h"
17 #include "gtest/gtest.h"
18 
19 #include "Plugins/Process/Utility/lldb-x86-register-enums.h"
20 #include "Plugins/Process/Utility/RegisterContextNetBSD_i386.h"
21 
22 using namespace lldb;
23 using namespace lldb_private;
24 
GetRegParams(RegisterInfoInterface & ctx,uint32_t reg)25 static std::pair<size_t, size_t> GetRegParams(RegisterInfoInterface &ctx,
26                                               uint32_t reg) {
27   const RegisterInfo &info = ctx.GetRegisterInfo()[reg];
28   return {info.byte_offset, info.byte_size};
29 }
30 
31 #define EXPECT_OFF(regname, offset, size)                                      \
32   EXPECT_THAT(GetRegParams(reg_ctx, lldb_##regname),                           \
33               ::testing::Pair(offset + base_offset, size))
34 
35 #define EXPECT_GPR_I386(regname)                                               \
36   EXPECT_THAT(GetRegParams(reg_ctx, lldb_##regname##_i386),                    \
37               ::testing::Pair(offsetof(reg, r_##regname),         \
38                               sizeof(reg::r_##regname)))
39 #define EXPECT_DBR_I386(num)                                                   \
40   EXPECT_OFF(dr##num##_i386, offsetof(dbreg, dr[num]),            \
41              sizeof(dbreg::dr[num]))
42 
TEST(RegisterContextNetBSDTest,i386)43 TEST(RegisterContextNetBSDTest, i386) {
44   ArchSpec arch{"i686-unknown-netbsd"};
45   RegisterContextNetBSD_i386 reg_ctx{arch};
46 
47   EXPECT_GPR_I386(eax);
48   EXPECT_GPR_I386(ecx);
49   EXPECT_GPR_I386(edx);
50   EXPECT_GPR_I386(ebx);
51   EXPECT_GPR_I386(esp);
52   EXPECT_GPR_I386(ebp);
53   EXPECT_GPR_I386(esi);
54   EXPECT_GPR_I386(edi);
55   EXPECT_GPR_I386(eip);
56   EXPECT_GPR_I386(eflags);
57   EXPECT_GPR_I386(cs);
58   EXPECT_GPR_I386(ss);
59   EXPECT_GPR_I386(ds);
60   EXPECT_GPR_I386(es);
61   EXPECT_GPR_I386(fs);
62   EXPECT_GPR_I386(gs);
63 
64   // fctrl is the first FPR field, it is used to determine offset of the whole
65   // FPR struct
66   size_t base_offset = reg_ctx.GetRegisterInfo()[lldb_fctrl_i386].byte_offset;
67 
68   // assert against FXSAVE struct
69   EXPECT_OFF(fctrl_i386, 0x00, 2);
70   EXPECT_OFF(fstat_i386, 0x02, 2);
71   // TODO: This is a known bug, abridged ftag should is 8 bits in length.
72   EXPECT_OFF(ftag_i386, 0x04, 2);
73   EXPECT_OFF(fop_i386, 0x06, 2);
74   // NB: Technically fiseg/foseg are 16-bit long and the higher 16 bits
75   // are reserved.  However, we use them to access/recombine 64-bit FIP/FDP.
76   EXPECT_OFF(fioff_i386, 0x08, 4);
77   EXPECT_OFF(fiseg_i386, 0x0C, 4);
78   EXPECT_OFF(fooff_i386, 0x10, 4);
79   EXPECT_OFF(foseg_i386, 0x14, 4);
80   EXPECT_OFF(mxcsr_i386, 0x18, 4);
81   EXPECT_OFF(mxcsrmask_i386, 0x1C, 4);
82   EXPECT_OFF(st0_i386, 0x20, 10);
83   EXPECT_OFF(st1_i386, 0x30, 10);
84   EXPECT_OFF(st2_i386, 0x40, 10);
85   EXPECT_OFF(st3_i386, 0x50, 10);
86   EXPECT_OFF(st4_i386, 0x60, 10);
87   EXPECT_OFF(st5_i386, 0x70, 10);
88   EXPECT_OFF(st6_i386, 0x80, 10);
89   EXPECT_OFF(st7_i386, 0x90, 10);
90   EXPECT_OFF(mm0_i386, 0x20, 8);
91   EXPECT_OFF(mm1_i386, 0x30, 8);
92   EXPECT_OFF(mm2_i386, 0x40, 8);
93   EXPECT_OFF(mm3_i386, 0x50, 8);
94   EXPECT_OFF(mm4_i386, 0x60, 8);
95   EXPECT_OFF(mm5_i386, 0x70, 8);
96   EXPECT_OFF(mm6_i386, 0x80, 8);
97   EXPECT_OFF(mm7_i386, 0x90, 8);
98   EXPECT_OFF(xmm0_i386, 0xA0, 16);
99   EXPECT_OFF(xmm1_i386, 0xB0, 16);
100   EXPECT_OFF(xmm2_i386, 0xC0, 16);
101   EXPECT_OFF(xmm3_i386, 0xD0, 16);
102   EXPECT_OFF(xmm4_i386, 0xE0, 16);
103   EXPECT_OFF(xmm5_i386, 0xF0, 16);
104   EXPECT_OFF(xmm6_i386, 0x100, 16);
105   EXPECT_OFF(xmm7_i386, 0x110, 16);
106 
107   base_offset = reg_ctx.GetRegisterInfo()[lldb_dr0_i386].byte_offset;
108   EXPECT_DBR_I386(0);
109   EXPECT_DBR_I386(1);
110   EXPECT_DBR_I386(2);
111   EXPECT_DBR_I386(3);
112   EXPECT_DBR_I386(4);
113   EXPECT_DBR_I386(5);
114   EXPECT_DBR_I386(6);
115   EXPECT_DBR_I386(7);
116 }
117 
118 #endif // defined(__i386__) || defined(__x86_64__)
119