1 /* $NetBSD: dwarf_errmsg.c,v 1.4 2022/05/01 17:20:47 jkoshy Exp $ */
2
3 /*-
4 * Copyright (c) 2007 John Birrell (jb@freebsd.org)
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include "_libdwarf.h"
30
31 __RCSID("$NetBSD: dwarf_errmsg.c,v 1.4 2022/05/01 17:20:47 jkoshy Exp $");
32 ELFTC_VCSID("Id: dwarf_errmsg.c 2975 2014-01-21 20:08:04Z kaiwang27");
33
34 static const char *_libdwarf_errors[] = {
35 #define DEFINE_ERROR(N,S) [DW_DLE_##N] = S
36 DEFINE_ERROR(NONE, "No Error"),
37 DEFINE_ERROR(ERROR, "An error"),
38 DEFINE_ERROR(NO_ENTRY, "No entry found"),
39 DEFINE_ERROR(ARGUMENT, "Invalid argument"),
40 DEFINE_ERROR(DEBUG_INFO_NULL, "Debug info NULL"),
41 DEFINE_ERROR(MEMORY, "Insufficient memory"),
42 DEFINE_ERROR(ELF, "ELF error"),
43 DEFINE_ERROR(CU_LENGTH_ERROR, "Invalid compilation unit data"),
44 DEFINE_ERROR(VERSION_STAMP_ERROR, "Unsupported version"),
45 DEFINE_ERROR(DEBUG_ABBREV_NULL, "Abbrev not found"),
46 DEFINE_ERROR(DIE_NO_CU_CONTEXT, "No current compilation unit"),
47 DEFINE_ERROR(LOC_EXPR_BAD, "Invalid location expression"),
48 DEFINE_ERROR(EXPR_LENGTH_BAD, "Invalid DWARF expression length"),
49 DEFINE_ERROR(DEBUG_LOC_SECTION_SHORT, "Loclist section too short"),
50 DEFINE_ERROR(ATTR_FORM_BAD, "Invalid attribute form"),
51 DEFINE_ERROR(DEBUG_LINE_LENGTH_BAD, "Line info section too short"),
52 DEFINE_ERROR(LINE_FILE_NUM_BAD, "Invalid file number."),
53 DEFINE_ERROR(DIR_INDEX_BAD, "Invalid dir index."),
54 DEFINE_ERROR(DEBUG_FRAME_LENGTH_BAD, "Frame section too short"),
55 DEFINE_ERROR(NO_CIE_FOR_FDE, "FDE without corresponding CIE"),
56 DEFINE_ERROR(FRAME_AUGMENTATION_UNKNOWN, "Unknown CIE augmentation"),
57 DEFINE_ERROR(FRAME_INSTR_EXEC_ERROR, "Frame instruction exec error"),
58 DEFINE_ERROR(FRAME_VERSION_BAD, "Unsupported frame section version"),
59 DEFINE_ERROR(FRAME_TABLE_COL_BAD, "Invalid table column value"),
60 DEFINE_ERROR(DF_REG_NUM_TOO_HIGH, "Register number too large"),
61 DEFINE_ERROR(PC_NOT_IN_FDE_RANGE, "PC requested not in the FDE range"),
62 DEFINE_ERROR(ARANGE_OFFSET_BAD, "Invalid address range offset"),
63 DEFINE_ERROR(DEBUG_MACRO_INCONSISTENT, "Invalid macinfo data"),
64 DEFINE_ERROR(ELF_SECT_ERR, "Application callback failed"),
65 DEFINE_ERROR(NUM, "Unknown DWARF error")
66 #undef DEFINE_ERROR
67 };
68
69 const char *
dwarf_errmsg_(Dwarf_Error * error)70 dwarf_errmsg_(Dwarf_Error *error)
71 {
72 const char *p;
73
74 if (error == NULL)
75 return NULL;
76
77 if (error->err_error < 0 || error->err_error >= DW_DLE_NUM)
78 return _libdwarf_errors[DW_DLE_NUM];
79 else if (error->err_error == DW_DLE_NONE)
80 return _libdwarf_errors[DW_DLE_NONE];
81 else
82 p = _libdwarf_errors[error->err_error];
83
84 if (error->err_error == DW_DLE_ELF)
85 snprintf(error->err_msg, sizeof(error->err_msg),
86 "ELF error : %s [%s(%d)]", elf_errmsg(error->err_elferror),
87 error->err_func, error->err_line);
88 else
89 snprintf(error->err_msg, sizeof(error->err_msg),
90 "%s [%s(%d)]", p, error->err_func, error->err_line);
91
92 return (const char *) error->err_msg;
93 }
94