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
|
/* output-file.c - Deal with the output file
Copyright (C) 1987-2023 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to
the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
#include "as.h"
#include "subsegs.h"
#include "sb.h"
#include "macro.h"
#include "output-file.h"
#ifndef TARGET_MACH
#define TARGET_MACH 0
#endif
bfd *stdoutput;
void
output_file_create (const char *name)
{
if (name[0] == '-' && name[1] == '\0')
as_fatal (_("can't open a bfd on stdout %s"), name);
else if (!(stdoutput = bfd_openw (name, TARGET_FORMAT)))
{
bfd_error_type err = bfd_get_error ();
if (err == bfd_error_invalid_target)
as_fatal (_("selected target format '%s' unknown"), TARGET_FORMAT);
else
as_fatal (_("can't create %s: %s"), name, bfd_errmsg (err));
}
bfd_set_format (stdoutput, bfd_object);
bfd_set_arch_mach (stdoutput, TARGET_ARCH, TARGET_MACH);
if (flag_traditional_format)
stdoutput->flags |= BFD_TRADITIONAL_FORMAT;
}
static void
stash_frchain_obs (asection *sec)
{
segment_info_type *info = seg_info (sec);
if (info)
{
struct frchain *frchp;
for (frchp = info->frchainP; frchp; frchp = frchp->frch_next)
obstack_ptr_grow (¬es, &frchp->frch_obstack);
info->frchainP = NULL;
}
}
void
output_file_close (void)
{
bool res;
bfd *obfd = stdoutput;
struct obstack **obs;
asection *sec;
const char *filename;
if (obfd == NULL)
return;
/* Prevent an infinite loop - if the close failed we will call as_fatal
which will call xexit() which may call this function again... */
stdoutput = NULL;
/* We can't free obstacks attached to the output bfd sections before
closing the output bfd since data in those obstacks may need to
be accessed, but we can't access anything in the output bfd after
it is closed.. */
for (sec = obfd->sections; sec; sec = sec->next)
stash_frchain_obs (sec);
stash_frchain_obs (reg_section);
stash_frchain_obs (expr_section);
stash_frchain_obs (bfd_abs_section_ptr);
stash_frchain_obs (bfd_und_section_ptr);
obstack_ptr_grow (¬es, NULL);
obs = obstack_finish (¬es);
/* Close the bfd. */
if (!flag_always_generate_output && had_errors ())
res = bfd_close_all_done (obfd);
else
res = bfd_close (obfd);
now_seg = NULL;
now_subseg = 0;
filename = out_file_name;
out_file_name = NULL;
if (!keep_it && filename)
unlink_if_ordinary (filename);
#ifdef md_end
md_end ();
#endif
#ifdef obj_end
obj_end ();
#endif
macro_end ();
expr_end ();
read_end ();
symbol_end ();
subsegs_end (obs);
if (!res)
as_fatal ("%s: %s", filename, bfd_errmsg (bfd_get_error ()));
}
|
