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
|
/****************************************************************/
/* mdso: midipix dso scavenger */
/* Copyright (C) 2015--2017 Z. Gilboa */
/* Released under GPLv2 and GPLv3; see COPYING.MDSO. */
/****************************************************************/
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stddef.h>
#include <unistd.h>
#include <fcntl.h>
#include <mdso/mdso.h>
#include "mdso_driver_impl.h"
#include "mdso_errinfo_impl.h"
static FILE * mdso_create_output(
const struct mdso_driver_ctx * dctx,
const char * name,
int fdat)
{
struct mdso_driver_ctx_impl * ictx;
uintptr_t addr;
int fdout;
FILE * fout;
addr = (uintptr_t)dctx - offsetof(struct mdso_driver_ctx_impl,ctx);
ictx = (struct mdso_driver_ctx_impl *)addr;
fdat = (fdat == AT_FDCWD) ? AT_FDCWD : ictx->fddst;
if ((fdout = openat(fdat,name,
O_CREAT|O_TRUNC|O_WRONLY|O_NOCTTY|O_NOFOLLOW,
S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH)) < 0) {
MDSO_SYSTEM_ERROR(dctx);
return 0;
}
if (!(fout = fdopen(fdout,"w"))) {
close(fdout);
MDSO_SYSTEM_ERROR(dctx);
return 0;
}
return fout;
}
FILE * mdso_create_archive(
const struct mdso_driver_ctx * dctx,
const char * arname)
{
return mdso_create_output(dctx,arname,AT_FDCWD);
}
FILE * mdso_create_asm_source(
const struct mdso_driver_ctx * dctx,
const char * asmname)
{
if (!dctx->cctx->dstdir)
return stdout;
return mdso_create_output(dctx,asmname,-1);
}
FILE * mdso_create_object(
const struct mdso_driver_ctx * dctx,
const char * objname)
{
if (!dctx->cctx->dstdir) {
MDSO_CUSTOM_ERROR(dctx,MDSO_ERR_INVALID_DSTDIR);
return 0;
}
return mdso_create_output(dctx,objname,-1);
}
|
