blob: ade972be12ff57a4b794d9448a8c21a9d5f03d76 (
plain)
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
|
// build/run probes
// Copyright (C) 2005 Red Hat Inc.
//
// This file is part of systemtap, and is free software. You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.
#include "config.h"
#include "buildrun.h"
#include <fstream>
#include <sstream>
extern "C" {
#include "signal.h"
}
using namespace std;
// return as quoted string, with at least '"' backslash-escaped
template <typename IN> inline string
lex_cast_qstring(IN const & in)
{
stringstream ss;
string out, out2;
if (!(ss << in))
throw runtime_error("bad lexical cast");
out = ss.str();
out2 += '"';
for (unsigned i=0; i<out.length(); i++)
{
if (out[i] == '"') // XXX others?
out2 += '\\';
out2 += out[i];
}
out2 += '"';
return out2;
}
int
compile_pass (systemtap_session& s)
{
// fill in a quick Makefile
string makefile_nm = s.tmpdir + "/Makefile";
ofstream o (makefile_nm.c_str());
int rc = 0;
// Create makefile
for (unsigned i=0; i<s.macros.size(); i++)
o << "CFLAGS += -D " << lex_cast_qstring(s.macros[i]) << endl;
if (s.test_mode)
{
string module_dir = string("/lib/modules/")
+ s.kernel_release + "/build";
o << "CFLAGS += -I \"" << module_dir << "/include\"" << endl;
o << "CFLAGS += -I \"" << s.runtime_path << "/user\"" << endl;
o << "CFLAGS += -I \"" << s.runtime_path << "\"" << endl;
o << "CFLAGS += -I \"" << module_dir << "/include/asm/mach-default\"" << endl;
o << s.module_name << ": " << s.translated_source << endl;
o << "\t$(CC) $(CFLAGS) -o " << s.module_name
<< " " << s.translated_source << endl;
}
else
{
// Assumes linux 2.6 kbuild
o << "CFLAGS += -Wno-unused -Werror" << endl;
o << "CFLAGS += -I \"" << s.runtime_path << "\"" << endl;
o << "CFLAGS += -I \"" << s.runtime_path << "/relayfs\"" << endl;
o << "obj-m := " << s.module_name << ".o" << endl;
}
o.close ();
// Run make
if (s.test_mode)
{
string make_cmd = string("make -C \"") + s.tmpdir + "\"";
if (! s.verbose)
make_cmd += " -s >/dev/null 2>&1";
if (s.verbose) clog << "Running " << make_cmd << endl;
rc = system (make_cmd.c_str());
if (s.verbose) clog << "Pass 4: compiled into \""
<< s.module_name
<< "\"" << endl;
}
else
{
string module_dir = string("/lib/modules/")
+ s.kernel_release + "/build";
string make_cmd = string("make")
+ string (" -C \"") + module_dir + string("\"");
make_cmd += string(" M=\"") + s.tmpdir + string("\" modules");
if (! s.verbose)
make_cmd += " -s >/dev/null 2>&1";
if (s.verbose) clog << "Running " << make_cmd << endl;
rc = system (make_cmd.c_str());
if (s.verbose) clog << "Pass 4: compiled into \""
<< s.module_name << ".ko"
<< "\"" << endl;
}
return rc;
}
template <typename T>
static string
stringify(T t)
{
ostringstream s;
s << t;
return s.str ();
}
int
run_pass (systemtap_session& s)
{
int rc = 0;
if (s.test_mode)
{
string run_cmd = s.tmpdir + "/" + s.module_name;
if (s.verbose) clog << "Running " << run_cmd << endl;
rc = system (run_cmd.c_str ());
}
else // real run
{
// leave parent process alone
sighandler_t oldsig = signal (SIGINT, SIG_IGN);
// for now, just spawn stpd
string stpd_cmd = string("sudo ")
+ string(PKGLIBDIR) + "/stpd "
+ (s.bulk_mode ? "" : "-r ")
+ (s.verbose ? "" : "-q ")
+ (s.output_file.empty() ? "" : "-o " + s.output_file + " ");
if (s.cmd != "")
stpd_cmd += "-c \"" + s.cmd + "\" ";
if (s.target_pid)
stpd_cmd += "-t " + stringify(s.target_pid) + " ";
if (s.buffer_size)
stpd_cmd += "-b " + stringify(s.buffer_size) + " ";
stpd_cmd += s.tmpdir + "/" + s.module_name + ".ko";
if (s.verbose) clog << "Running " << stpd_cmd << endl;
rc = system (stpd_cmd.c_str ());
signal (SIGINT, oldsig);
}
return rc;
}
|
