1/* plt-findfre-1.c -- Test for sframe_find_fre for SFRAME_FDE_TYPE_PCMASK.
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_plt_fde1 (sframe_encoder_ctx *ectx, int idx)
32{
33  int i, err;
34  /* A contiguous block containing 3 FREs.  The start_ip_offset must remain
35     less than 16 bytes.  */
36  sframe_frame_row_entry fres[]
37    = { {0x0, {0x1, 0, 0}, 0x3},
38	{0x6, {0x2, 0xf0, 0}, 0x5},
39	{0xc, {0x3, 0xf0, 0}, 0x4}
40      };
41
42  unsigned char finfo = sframe_fde_create_func_info (SFRAME_FRE_TYPE_ADDR1,
43						     SFRAME_FDE_TYPE_PCMASK);
44  /* 5 pltN entries of 16 bytes each.  */
45  err = sframe_encoder_add_funcdesc_v2 (ectx, 0x1000, 16*5, finfo, 16, 3);
46  if (err == -1)
47    return err;
48
49  for (i = 0; i < 3; i++)
50    if (sframe_encoder_add_fre (ectx, idx, fres+i) == SFRAME_ERR)
51      return -1;
52
53  return 0;
54}
55
56int main (void)
57{
58  sframe_encoder_ctx *ectx;
59  sframe_decoder_ctx *dctx;
60  sframe_frame_row_entry frep;
61  char *sframe_buf;
62  size_t sf_size;
63  int err = 0;
64  unsigned int fde_cnt = 0;
65
66#define TEST(name, cond)                                                      \
67  do                                                                          \
68    {                                                                         \
69      if (cond)                                                               \
70	pass (name);                                                          \
71      else                                                                    \
72	fail (name);                                                          \
73    }                                                                         \
74    while (0)
75
76  ectx = sframe_encode (SFRAME_VERSION, 0, SFRAME_ABI_AMD64_ENDIAN_LITTLE,
77			SFRAME_CFA_FIXED_FP_INVALID,
78			-8, /* Fixed RA offset for AMD64.  */
79			&err);
80
81  err = add_plt_fde1 (ectx, 0);
82  TEST ("plt-findfre-1: Adding FDE1 for plt", err == 0);
83
84  fde_cnt = sframe_encoder_get_num_fidx (ectx);
85  TEST ("plt-findfre-1: Test FDE count", fde_cnt == 1);
86
87  sframe_buf = sframe_encoder_write (ectx, &sf_size, &err);
88  TEST ("plt-findfre-1: Encoder write", err == 0);
89
90  dctx = sframe_decode (sframe_buf, sf_size, &err);
91  TEST("plt-findfre-1: Decoder setup", dctx != NULL);
92
93  /* Find the first FRE in PLT1.  */
94  err = sframe_find_fre (dctx, (0x1000 + 0x0), &frep);
95  TEST("plt-findfre-1: Find first FRE in PLT1",
96       ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x1)));
97
98  /* Find the second FRE.  */
99  err = sframe_find_fre (dctx, (0x1000 + 0x6), &frep);
100  TEST("plt-findfre-1: Find second FRE in PLT1",
101       ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x2)));
102
103  /* Find the last FRE.  */
104  err = sframe_find_fre (dctx, (0x1000 + 0xc), &frep);
105  TEST("plt-findfre-1: Find last FRE in PLT1",
106       ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x3)));
107
108  /* Find the first FRE in PLT4.  */
109  err = sframe_find_fre (dctx, (0x1000 + 16*3 + 0x0), &frep);
110  TEST("plt-findfre-1: Find first FRE in PLT4",
111       ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x1)));
112
113  /* Find the second FRE in PLT4.  */
114  err = sframe_find_fre (dctx, (0x1000 + 16*3 + 0x6), &frep);
115  TEST("plt-findfre-1: Find second FRE in PLT4",
116       ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x2)));
117
118  /* Find the last FRE in PLT4.  */
119  err = sframe_find_fre (dctx, (0x1000 + 16*3 + 0xc), &frep);
120  TEST("plt-findfre-1: Find last FRE in PLT4",
121       ((err == 0) && (sframe_fre_get_cfa_offset (dctx, &frep, &err) == 0x3)));
122
123  sframe_encoder_free (&ectx);
124  sframe_decoder_free (&dctx);
125
126  return 0;
127}
128