1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <strings.h>
28 #include <dwarf.h>
29 #include "_conv.h"
30 #include <dwarf_ehe_msg.h>
31
32 #define FLAGSZ MSG_GBL_OSQBRKT_SIZE + \
33 MSG_DWEHE_SLEB128_SIZE + \
34 MSG_DWEHE_INDIRECT_SIZE + \
35 CONV_INV_BUFSIZE + MSG_GBL_CSQBRKT_SIZE
36
37 /*
38 * Ensure that Conv_dwarf_ehe_buf_t is large enough:
39 *
40 * FLAGSZ is the real minimum size of the buffer required by conv_dwarf_ehe().
41 * However, Conv_dwarf_ehe_buf_t uses CONV_EHDR_FLAG_BUFSIZE to set the
42 * buffer size. We do things this way because the definition of FLAGSZ uses
43 * information that is not available in the environment of other programs
44 * that include the conv.h header file.
45 */
46 #if (CONV_DWARF_EHE_BUFSIZE != FLAGSZ) && !defined(__lint)
47 #define REPORT_BUFSIZE FLAGSZ
48 #include "report_bufsize.h"
49 #error "CONV_DWARF_EHE_BUFSIZE does not match FLAGSZ"
50 #endif
51
52 const char *
conv_dwarf_ehe(uint_t flags,Conv_dwarf_ehe_buf_t * dwarf_ehe_buf)53 conv_dwarf_ehe(uint_t flags, Conv_dwarf_ehe_buf_t *dwarf_ehe_buf)
54 {
55 char *buf = dwarf_ehe_buf->buf;
56 size_t ret = 0;
57
58 (void) strncpy(buf, MSG_ORIG(MSG_GBL_OSQBRKT), FLAGSZ);
59
60 if (flags == DW_EH_PE_omit)
61 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_OMIT), FLAGSZ);
62 else if (flags == DW_EH_PE_absptr)
63 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_ABSPTR), FLAGSZ);
64
65 if (ret >= FLAGSZ)
66 return (conv_invalid_val(&dwarf_ehe_buf->inv_buf, flags, 0));
67
68 if ((flags == DW_EH_PE_omit) || (flags == DW_EH_PE_absptr)) {
69 (void) strlcat(buf, MSG_ORIG(MSG_GBL_CSQBRKT), FLAGSZ);
70 return (buf);
71 }
72
73 switch (flags & 0x0f) {
74 case DW_EH_PE_uleb128:
75 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_ULEB128), FLAGSZ);
76 break;
77 case DW_EH_PE_udata2:
78 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_UDATA2), FLAGSZ);
79 break;
80 case DW_EH_PE_udata4:
81 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_UDATA4), FLAGSZ);
82 break;
83 case DW_EH_PE_udata8:
84 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_UDATA8), FLAGSZ);
85 break;
86 case DW_EH_PE_sleb128:
87 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_SLEB128), FLAGSZ);
88 break;
89 case DW_EH_PE_sdata2:
90 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_SDATA2), FLAGSZ);
91 break;
92 case DW_EH_PE_sdata4:
93 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_SDATA4), FLAGSZ);
94 break;
95 case DW_EH_PE_sdata8:
96 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_SDATA8), FLAGSZ);
97 break;
98 }
99 if (ret >= FLAGSZ)
100 return (conv_invalid_val(&dwarf_ehe_buf->inv_buf, flags, 0));
101
102 switch (flags & 0xf0) {
103 case DW_EH_PE_pcrel:
104 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_PCREL), FLAGSZ);
105 break;
106 case DW_EH_PE_textrel:
107 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_TEXTREL), FLAGSZ);
108 break;
109 case DW_EH_PE_datarel:
110 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_DATAREL), FLAGSZ);
111 break;
112 case DW_EH_PE_funcrel:
113 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_FUNCREL), FLAGSZ);
114 break;
115 case DW_EH_PE_aligned:
116 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_ALIGNED), FLAGSZ);
117 break;
118 case DW_EH_PE_indirect:
119 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_INDIRECT), FLAGSZ);
120 break;
121 }
122 if (ret >= FLAGSZ)
123 return (conv_invalid_val(&dwarf_ehe_buf->inv_buf, flags, 0));
124
125 (void) strlcat(buf, MSG_ORIG(MSG_GBL_CSQBRKT), FLAGSZ);
126 return (buf);
127 }
128