1 /* findfre-1.c -- Test for sframe_find_fre in libsframe.
2
3 Copyright (C) 2023 Free Software Foundation, Inc.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17
18 #include "config.h"
19
20 #include <stdlib.h>
21 #include <string.h>
22 #include <sys/stat.h>
23
24 #include "sframe-api.h"
25
26 /* DejaGnu should not use gnulib's vsnprintf replacement here. */
27 #undef vsnprintf
28 #include <dejagnu.h>
29
30 static int
31 add_fde1 (sframe_encoder_ctx *encode, int idx)
32 {
33 int i, err;
34 /* A contiguous block containing 4 FREs. */
35 sframe_frame_row_entry fres[]
36 = { {0x0, {0x1, 0, 0}, 0x3},
37 {0x1, {0x2, 0xf0, 0}, 0x5},
38 {0x10, {0x3, 0xf0, 0}, 0x4},
39 {0x38, {0x8, 0xf0, 0}, 0x5}
40 };
41
42 unsigned char finfo = sframe_fde_create_func_info (SFRAME_FRE_TYPE_ADDR1,
43 SFRAME_FDE_TYPE_PCINC);
44 err = sframe_encoder_add_funcdesc (encode, 0xfffff03e, 0x40, finfo, 4);
45 if (err == -1)
46 return err;
47
48 for (i = 0; i < 4; i++)
49 if (sframe_encoder_add_fre (encode, idx,fres+i) == SFRAME_ERR)
50 return -1;
51
52 return 0;
53 }
54
55 static int
56 add_fde2 (sframe_encoder_ctx *encode, int idx)
57 {
58 int i, err;
59 /* A contiguous block containing 4 FREs. */
60 sframe_frame_row_entry fres[]
61 = { {0x0, {0x10, 0, 0}, 0x3},
62 {0x10, {0x12, 0xf0, 0}, 0x5},
63 {0x14, {0x14, 0xf0, 0}, 0x4},
64 {0x20, {0x15, 0xf0, 0}, 0x5}
65 };
66
67 unsigned char finfo = sframe_fde_create_func_info (SFRAME_FRE_TYPE_ADDR1,
68 SFRAME_FDE_TYPE_PCINC);
69 err = sframe_encoder_add_funcdesc (encode, 0xfffff08e, 0x60, finfo, 4);
70 if (err == -1)
71 return err;
72
73 for (i = 0; i < 4; i++)
74 if (sframe_encoder_add_fre (encode, idx, fres+i) == SFRAME_ERR)
75 return -1;
76
77 return 0;
78 }
79
80 int main (void)
81 {
82 sframe_encoder_ctx *encode;
83 sframe_decoder_ctx *dctx;
84 sframe_frame_row_entry frep;
85 char *sframe_buf;
86 size_t sf_size;
87 int err = 0;
88 unsigned int fde_cnt = 0;
89
90 #define TEST(name, cond) \
91 do \
92 { \
93 if (cond) \
94 pass (name); \
95 else \
96 fail (name); \
97 } \
98 while (0)
99
100 encode = sframe_encode (SFRAME_VERSION, 0,
101 SFRAME_ABI_AMD64_ENDIAN_LITTLE,
102 SFRAME_CFA_FIXED_FP_INVALID,
103 -8, /* Fixed RA offset for AMD64. */
104 &err);
105
106 err = add_fde1 (encode, 0);
107 TEST ("findfre-1: Adding FDE1", err == 0);
108
109 err = add_fde2 (encode, 1);
110 TEST ("findfre-1: Adding FDE2", err == 0);
111
112 fde_cnt = sframe_encoder_get_num_fidx (encode);
113 TEST ("findfre-1: Test FDE count", fde_cnt == 2);
114
115 sframe_buf = sframe_encoder_write (encode, &sf_size, &err);
116 TEST ("findfre-1: Encoder write", err == 0);
117
118 dctx = sframe_decode (sframe_buf, sf_size, &err);
119 TEST("findfre-1: Decoder setup", dctx != NULL);
120
121 /* Find the third FRE in first FDE. */
122 err = sframe_find_fre (dctx, (0xfffff03e + 0x15), &frep);
123 TEST("findfre-1: Find third FRE",
124 ((err == 0) && (sframe_fre_get_cfa_offset(dctx, &frep, &err) == 0x3)));
125
126 /* Find an FRE for PC at the end of range covered by FRE. */
127 err = sframe_find_fre (dctx, (0xfffff03e + 0x9), &frep);
128 TEST("findfre-1: Find FRE for last PC covered by FRE",
129 ((err == 0) && (sframe_fre_get_cfa_offset(dctx, &frep, &err) == 0x2)));
130
131 /* Find the last FRE in first FDE. */
132 err = sframe_find_fre (dctx, (0xfffff03e + 0x39), &frep);
133 TEST("findfre-1: Find last FRE",
134 ((err == 0) && (sframe_fre_get_cfa_offset(dctx, &frep, &err) == 0x8)));
135
136 /* Find the second FRE in second FDE. */
137 err = sframe_find_fre (dctx, (0xfffff08e + 0x11), &frep);
138 TEST("findfre-1: Find second FRE",
139 ((err == 0) && (sframe_fre_get_cfa_offset(dctx, &frep, &err) == 0x12)));
140
141 /* Find the first FRE in second FDE. */
142 err = sframe_find_fre (dctx, (0xfffff08e + 0x0), &frep);
143 TEST("findfre-1: Find first FRE",
144 ((err == 0) && (sframe_fre_get_cfa_offset(dctx, &frep, &err) == 0x10)));
145
146 /* Find FRE for PC out of range. Expect error code. */
147 err = sframe_find_fre (dctx, (0xfffff03e + 0x40), &frep);
148 TEST("findfre-1: Find FRE for out of range PC",
149 (err == SFRAME_ERR));
150
151 sframe_encoder_free (&encode);
152 sframe_decoder_free (&dctx);
153
154 return 0;
155 }