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 #pragma ident "%Z%%M% %I% %E% SMI"
27
28 #include <strings.h>
29 #include <dwarf.h>
30 #include "_conv.h"
31 #include <dwarf_ehe_msg.h>
32
33 #define FLAGSZ MSG_GBL_OSQBRKT_SIZE + \
34 MSG_DWEHE_SLEB128_SIZE + \
35 MSG_DWEHE_INDIRECT_SIZE + \
36 CONV_INV_BUFSIZE + MSG_GBL_CSQBRKT_SIZE
37
38 /*
39 * Ensure that Conv_dwarf_ehe_buf_t is large enough:
40 *
41 * FLAGSZ is the real minimum size of the buffer required by conv_dwarf_ehe().
42 * However, Conv_dwarf_ehe_buf_t uses CONV_EHDR_FLAG_BUFSIZE to set the
43 * buffer size. We do things this way because the definition of FLAGSZ uses
44 * information that is not available in the environment of other programs
45 * that include the conv.h header file.
46 */
47 #if (CONV_DWARF_EHE_BUFSIZE != FLAGSZ) && !defined(__lint)
48 #define REPORT_BUFSIZE FLAGSZ
49 #include "report_bufsize.h"
50 #error "CONV_DWARF_EHE_BUFSIZE does not match FLAGSZ"
51 #endif
52
53 const char *
conv_dwarf_ehe(uint_t flags,Conv_dwarf_ehe_buf_t * dwarf_ehe_buf)54 conv_dwarf_ehe(uint_t flags, Conv_dwarf_ehe_buf_t *dwarf_ehe_buf)
55 {
56 char *buf = dwarf_ehe_buf->buf;
57 size_t ret = 0;
58
59 (void) strncpy(buf, MSG_ORIG(MSG_GBL_OSQBRKT), FLAGSZ);
60
61 if (flags == DW_EH_PE_omit)
62 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_OMIT), FLAGSZ);
63 else if (flags == DW_EH_PE_absptr)
64 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_ABSPTR), FLAGSZ);
65
66 if (ret >= FLAGSZ)
67 return (conv_invalid_val(&dwarf_ehe_buf->inv_buf, flags, 0));
68
69 if ((flags == DW_EH_PE_omit) || (flags == DW_EH_PE_absptr)) {
70 (void) strlcat(buf, MSG_ORIG(MSG_GBL_CSQBRKT), FLAGSZ);
71 return (buf);
72 }
73
74 switch (flags & 0x0f) {
75 case DW_EH_PE_uleb128:
76 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_ULEB128), FLAGSZ);
77 break;
78 case DW_EH_PE_udata2:
79 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_UDATA2), FLAGSZ);
80 break;
81 case DW_EH_PE_udata4:
82 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_UDATA4), FLAGSZ);
83 break;
84 case DW_EH_PE_udata8:
85 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_UDATA8), FLAGSZ);
86 break;
87 case DW_EH_PE_sleb128:
88 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_SLEB128), FLAGSZ);
89 break;
90 case DW_EH_PE_sdata2:
91 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_SDATA2), FLAGSZ);
92 break;
93 case DW_EH_PE_sdata4:
94 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_SDATA4), FLAGSZ);
95 break;
96 case DW_EH_PE_sdata8:
97 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_SDATA8), FLAGSZ);
98 break;
99 }
100 if (ret >= FLAGSZ)
101 return (conv_invalid_val(&dwarf_ehe_buf->inv_buf, flags, 0));
102
103 switch (flags & 0xf0) {
104 case DW_EH_PE_pcrel:
105 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_PCREL), FLAGSZ);
106 break;
107 case DW_EH_PE_textrel:
108 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_TEXTREL), FLAGSZ);
109 break;
110 case DW_EH_PE_datarel:
111 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_DATAREL), FLAGSZ);
112 break;
113 case DW_EH_PE_funcrel:
114 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_FUNCREL), FLAGSZ);
115 break;
116 case DW_EH_PE_aligned:
117 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_ALIGNED), FLAGSZ);
118 break;
119 case DW_EH_PE_indirect:
120 ret = strlcat(buf, MSG_ORIG(MSG_DWEHE_INDIRECT), FLAGSZ);
121 break;
122 }
123 if (ret >= FLAGSZ)
124 return (conv_invalid_val(&dwarf_ehe_buf->inv_buf, flags, 0));
125
126 (void) strlcat(buf, MSG_ORIG(MSG_GBL_CSQBRKT), FLAGSZ);
127 return (buf);
128 }
129