1 /*
2 * CodeView debugging formats implementation for Yasm
3 *
4 * Copyright (C) 2006-2007 Peter Johnson
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 */
27 #include <util.h>
28
29 #include <libyasm.h>
30
31 #include "cv-dbgfmt.h"
32
33 yasm_dbgfmt_module yasm_cv8_LTX_dbgfmt;
34
35
36 static /*@null@*/ /*@only@*/ yasm_dbgfmt *
cv_dbgfmt_create(yasm_object * object,yasm_dbgfmt_module * module,int version)37 cv_dbgfmt_create(yasm_object *object, yasm_dbgfmt_module *module, int version)
38 {
39 yasm_dbgfmt_cv *dbgfmt_cv = yasm_xmalloc(sizeof(yasm_dbgfmt_cv));
40 size_t i;
41
42 dbgfmt_cv->dbgfmt.module = module;
43
44 dbgfmt_cv->filenames_allocated = 32;
45 dbgfmt_cv->filenames_size = 0;
46 dbgfmt_cv->filenames =
47 yasm_xmalloc(sizeof(cv_filename)*dbgfmt_cv->filenames_allocated);
48 for (i=0; i<dbgfmt_cv->filenames_allocated; i++) {
49 dbgfmt_cv->filenames[i].pathname = NULL;
50 dbgfmt_cv->filenames[i].filename = NULL;
51 dbgfmt_cv->filenames[i].str_off = 0;
52 dbgfmt_cv->filenames[i].info_off = 0;
53 }
54
55 dbgfmt_cv->version = version;
56
57 return (yasm_dbgfmt *)dbgfmt_cv;
58 }
59
60 static /*@null@*/ /*@only@*/ yasm_dbgfmt *
cv8_dbgfmt_create(yasm_object * object)61 cv8_dbgfmt_create(yasm_object *object)
62 {
63 return cv_dbgfmt_create(object, &yasm_cv8_LTX_dbgfmt, 8);
64 }
65
66 static void
cv_dbgfmt_destroy(yasm_dbgfmt * dbgfmt)67 cv_dbgfmt_destroy(/*@only@*/ yasm_dbgfmt *dbgfmt)
68 {
69 yasm_dbgfmt_cv *dbgfmt_cv = (yasm_dbgfmt_cv *)dbgfmt;
70 size_t i;
71 for (i=0; i<dbgfmt_cv->filenames_size; i++) {
72 if (dbgfmt_cv->filenames[i].pathname)
73 yasm_xfree(dbgfmt_cv->filenames[i].pathname);
74 }
75 yasm_xfree(dbgfmt_cv->filenames);
76 yasm_xfree(dbgfmt);
77 }
78
79 /* Add a bytecode to a section, updating offset on insertion;
80 * no optimization necessary.
81 */
82 yasm_bytecode *
yasm_cv__append_bc(yasm_section * sect,yasm_bytecode * bc)83 yasm_cv__append_bc(yasm_section *sect, yasm_bytecode *bc)
84 {
85 yasm_bytecode *precbc = yasm_section_bcs_last(sect);
86 bc->offset = yasm_bc_next_offset(precbc);
87 yasm_section_bcs_append(sect, bc);
88 return precbc;
89 }
90
91 static void
cv_dbgfmt_generate(yasm_object * object,yasm_linemap * linemap,yasm_errwarns * errwarns)92 cv_dbgfmt_generate(yasm_object *object, yasm_linemap *linemap,
93 yasm_errwarns *errwarns)
94 {
95 yasm_cv__generate_symline(object, linemap, errwarns);
96 yasm_cv__generate_type(object);
97 }
98
99 /* Define dbgfmt structure -- see dbgfmt.h for details */
100 yasm_dbgfmt_module yasm_cv8_LTX_dbgfmt = {
101 "CodeView debugging format for VC8",
102 "cv8",
103 NULL, /* no directives */
104 cv8_dbgfmt_create,
105 cv_dbgfmt_destroy,
106 cv_dbgfmt_generate
107 };
108