1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/*******************************************************************/
/* slibtool: a strong libtool implementation, written in C */
/* Copyright (C) 2016--2024 SysDeer Technologies, LLC */
/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
/*******************************************************************/
#include <time.h>
#include <locale.h>
#include <regex.h>
#include <inttypes.h>
#include <slibtool/slibtool.h>
#include <slibtool/slibtool_output.h>
#include "slibtool_driver_impl.h"
#include "slibtool_dprintf_impl.h"
#include "slibtool_errinfo_impl.h"
#include "slibtool_pecoff_impl.h"
#include "slibtool_ar_impl.h"
/****************************************************/
/* Generate a linker version script (aka mapfile) */
/* that could be passed to the host linker. */
/* */
/* Since the provided symbol list is host-neautral, */
/* prepend symbol names with an underscore whenever */
/* necessary. */
/****************************************************/
static int slbt_util_output_mapfile_impl(
const struct slbt_driver_ctx * dctx,
const struct slbt_symlist_ctx * sctx,
int fdout)
{
bool fcoff;
bool fmach;
const char * dot;
const char * mark;
const char ** symv;
const char ** symstrv;
char strbuf[4096];
fcoff = slbt_host_objfmt_is_coff(dctx);
fmach = slbt_host_objfmt_is_macho(dctx);
if (fcoff) {
if (slbt_dprintf(fdout,"EXPORTS\n") < 0)
return SLBT_SYSTEM_ERROR(dctx,0);
} else if (fmach) {
if (slbt_dprintf(fdout,"# export_list, underscores prepended\n") < 0)
return SLBT_SYSTEM_ERROR(dctx,0);
} else {
if (slbt_dprintf(fdout,"{\n" "\t" "global:\n") < 0)
return SLBT_SYSTEM_ERROR(dctx,0);
}
symstrv = sctx->symstrv;
for (symv=symstrv; *symv; symv++) {
if (fcoff && slbt_is_strong_coff_symbol(*symv)) {
if (slbt_dprintf(fdout,"%s\n",*symv) < 0)
return SLBT_SYSTEM_ERROR(dctx,0);
} else if (fcoff && !strncmp(*symv,".weak.",6)) {
mark = &(*symv)[6];
dot = strchr(mark,'.');
strncpy(strbuf,mark,dot-mark);
strbuf[dot-mark] = '\0';
if (slbt_dprintf(fdout," %s = %s\n",strbuf,++dot) < 0)
return SLBT_SYSTEM_ERROR(dctx,0);
} else if (fmach) {
if (slbt_dprintf(fdout,"_%s\n",*symv) < 0)
return SLBT_SYSTEM_ERROR(dctx,0);
} else {
if (slbt_dprintf(fdout,"\t\t%s;\n",*symv) < 0)
return SLBT_SYSTEM_ERROR(dctx,0);
}
}
if (!fcoff && !fmach)
if (slbt_dprintf(fdout,"\n\t" "local:\n" "\t\t*;\n" "};\n") < 0)
return SLBT_SYSTEM_ERROR(dctx,0);
return 0;
}
static int slbt_util_create_mapfile_impl(
const struct slbt_symlist_ctx * sctx,
const char * path,
mode_t mode)
{
int ret;
const struct slbt_driver_ctx * dctx;
struct slbt_fd_ctx fdctx;
int fdout;
dctx = (slbt_get_symlist_ictx(sctx))->dctx;
if (slbt_lib_get_driver_fdctx(dctx,&fdctx) < 0)
return SLBT_NESTED_ERROR(dctx);
if (path) {
if ((fdout = openat(
fdctx.fdcwd,path,
O_WRONLY|O_CREAT|O_TRUNC,
mode)) < 0)
return SLBT_SYSTEM_ERROR(dctx,0);
} else {
fdout = fdctx.fdout;
}
ret = slbt_util_output_mapfile_impl(
dctx,sctx,fdout);
if (path) {
close(fdout);
}
return ret;
}
int slbt_util_create_mapfile(
const struct slbt_symlist_ctx * sctx,
const char * path,
mode_t mode)
{
return slbt_util_create_mapfile_impl(sctx,path,mode);
}
|
