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