1/* findfre-1.c -- Test for sframe_find_fre in libsframe.
2
3   Copyright (C) 2023-2024 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
30static int
31add_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
55static int
56add_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
80int 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}
156