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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*******************************************************************/
/* slibtool: a skinny libtool implementation, written in C */
/* Copyright (C) 2016--2024 SysDeer Technologies, LLC */
/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
/*******************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/stat.h>
#include <slibtool/slibtool.h>
#include "slibtool_driver_impl.h"
#include "slibtool_errinfo_impl.h"
#include "slibtool_linkcmd_impl.h"
#include "slibtool_mapfile_impl.h"
#include "slibtool_metafile_impl.h"
#include "slibtool_snprintf_impl.h"
#include "slibtool_symlink_impl.h"
#include "slibtool_spawn_impl.h"
#include "slibtool_visibility_impl.h"
static int slbt_exec_link_create_noop_symlink(
const struct slbt_driver_ctx * dctx,
struct slbt_exec_ctx * ectx,
const char * arfilename)
{
struct stat st;
int fdcwd;
/* fdcwd */
fdcwd = slbt_driver_fdcwd(dctx);
/* file exists? */
if (!fstatat(fdcwd,arfilename,&st,AT_SYMLINK_NOFOLLOW))
return 0;
/* needed? */
if (errno == ENOENT) {
if (slbt_create_symlink(
dctx,ectx,
"/dev/null",
arfilename,
SLBT_SYMLINK_LITERAL))
return SLBT_NESTED_ERROR(dctx);
return 0;
}
return SLBT_SYSTEM_ERROR(dctx,arfilename);
}
static int slbt_exec_link_remove_file(
const struct slbt_driver_ctx * dctx,
struct slbt_exec_ctx * ectx,
const char * target)
{
int fdcwd;
char * mark;
char * sbuf;
/* fdcwd */
fdcwd = slbt_driver_fdcwd(dctx);
/* remove target (if any) */
if (unlinkat(fdcwd,target,0) && (errno != ENOENT))
return SLBT_SYSTEM_ERROR(dctx,0);
/* remove a previous .disabled placeholder */
sbuf = (slbt_get_exec_ictx(ectx))->sbuf;
mark = sbuf;
mark += sprintf(mark,"%s",target);
strcpy(mark,".disabled");
if (unlinkat(fdcwd,sbuf,0) && (errno != ENOENT))
return SLBT_SYSTEM_ERROR(dctx,0);
return 0;
}
slbt_hidden int slbt_exec_link_create_archive(
const struct slbt_driver_ctx * dctx,
struct slbt_exec_ctx * ectx,
const char * arfilename,
bool fpic)
{
int fdcwd;
char ** argv;
char ** aarg;
char ** parg;
char program[PATH_MAX];
char output [PATH_MAX];
/* -disable-static? */
if (dctx->cctx->drvflags & SLBT_DRIVER_DISABLE_STATIC)
if (dctx->cctx->rpath)
return slbt_exec_link_create_noop_symlink(
dctx,ectx,arfilename);
/* dlopen, dlpreopen: object compilation (derived from dynamic linking) */
if (ectx->dlopenobj) {
slbt_ectx_reset_arguments(ectx);
slbt_reset_placeholders(ectx);
if (slbt_exec_link_create_library(
dctx,ectx,
"@ARDLOPEN",
"@ARDLOPEN",
"@ARDLOPEN",
true) < 0)
return SLBT_NESTED_ERROR(dctx);
}
/* restore initial state */
slbt_ectx_reset_arguments(ectx);
/* placeholders */
slbt_reset_placeholders(ectx);
/* output */
if (slbt_snprintf(output,sizeof(output),
"%s",arfilename) < 0)
return SLBT_BUFFER_ERROR(dctx);
/* tool-specific argument vector */
argv = (slbt_get_driver_ictx(dctx))->host.ar_argv;
/* fdcwd */
fdcwd = slbt_driver_fdcwd(dctx);
/* input argument adjustment */
aarg = ectx->altv;
if ((parg = argv)) {
for (; *parg; )
*aarg++ = *parg++;
} else {
*aarg++ = program;
}
*aarg++ = "-crs";
*aarg++ = output;
for (parg=ectx->cargv; *parg; parg++)
if (slbt_adjust_object_argument(*parg,fpic,!fpic,fdcwd))
*aarg++ = *parg;
if (ectx->dlopenobj)
*aarg++ = ectx->dlopenobj;
*aarg = 0;
ectx->argv = ectx->altv;
/* ar program */
if (argv) {
ectx->program = argv[0];
} else {
if (slbt_snprintf(program,sizeof(program),
"%s",dctx->cctx->host.ar) < 0)
return SLBT_BUFFER_ERROR(dctx);
ectx->program = program;
}
/* step output */
if (!(dctx->cctx->drvflags & SLBT_DRIVER_SILENT))
if (slbt_output_link(ectx))
return SLBT_NESTED_ERROR(dctx);
/* remove old archive as needed */
if (slbt_exec_link_remove_file(dctx,ectx,output))
return SLBT_NESTED_ERROR(dctx);
/* .deps */
if (slbt_exec_link_create_dep_file(
dctx,ectx,ectx->cargv,
arfilename,true))
return SLBT_NESTED_ERROR(dctx);
/* ar spawn */
if ((slbt_spawn(ectx,true) < 0) && (ectx->pid < 0)) {
return SLBT_SPAWN_ERROR(dctx);
} else if (ectx->exitcode) {
return SLBT_CUSTOM_ERROR(
dctx,
SLBT_ERR_AR_ERROR);
}
/* input objects associated with .la archives */
for (parg=ectx->cargv; *parg; parg++)
if (slbt_adjust_wrapper_argument(*parg,true))
if (slbt_util_import_archive(ectx,output,*parg))
return SLBT_NESTED_ERROR(dctx);
return 0;
}
|
