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497c491b JM |
1 | # Copyright 2014, 2015 Free Software Foundation, Inc. |
2 | # | |
3 | # This program is free software; you can redistribute it and/or modify | |
4 | # it under the terms of the GNU General Public License as published by | |
5 | # the Free Software Foundation; either version 3 of the License, or | |
6 | # (at your option) any later version. | |
7 | # | |
8 | # This program is distributed in the hope that it will be useful, | |
9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | # GNU General Public License for more details. | |
12 | # | |
13 | # You should have received a copy of the GNU General Public License | |
14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | # Generate a test program containing DTrace USDT probes, whose sources | |
17 | # are ${srcfile} and ${testfile}.d. The sequence of commands used to | |
18 | # generate the test program is: | |
19 | # | |
20 | # 1. Generate a header file from ${testfile}.d using dtrace -h. | |
21 | # 2. Compile ${srcfile}.c. | |
22 | # 3. Generate an object file containing a DOF program using dtrace -G. | |
23 | # 4. Link everything together to get the test program. | |
24 | # | |
25 | # Note that if DTrace is not found in the host system then this | |
26 | # function uses the pdtrace implementation, which is located at | |
27 | # testsuite/lib/pdtrace. | |
28 | # | |
29 | # This function requires 'testfile', 'srcfile' and 'binfile' to be | |
30 | # properly set. | |
31 | # | |
32 | # This function returns -1 on failure, 0 otherwise | |
33 | proc dtrace_build_usdt_test_program {} { | |
34 | global testfile hex objdir srcdir srcfile subdir binfile | |
35 | ||
36 | # Make sure that dtrace is installed, it is the real one (not the | |
37 | # script installed by SystemTap, for example) and of the right | |
38 | # version (>= 0.4.0). If it is not then use pdtrace instead. | |
39 | set dtrace "dtrace" | |
40 | set result [remote_exec host "$dtrace -V"] | |
41 | if {[lindex $result 0] != 0 || ![regexp {^dtrace: Sun D [0-9]\.[0-9]\.[0-9]} [lindex $result 1]]} { | |
42 | set dtrace "${objdir}/lib/pdtrace" | |
43 | } | |
44 | set dscript_file "${srcdir}/${subdir}/${testfile}.d" | |
45 | ||
46 | # 1. Generate a header file from testprogram.d using dtrace -h. | |
47 | set out_header_file [standard_output_file "${testfile}.h"] | |
48 | set result [remote_exec host "$dtrace -h -s $dscript_file -o $out_header_file"] | |
49 | verbose -log [lindex $result 1] | |
50 | if {[lindex $result 0] != 0} { | |
51 | return -1 | |
52 | } | |
53 | ||
54 | # 2. Compile testprogram.c. | |
55 | set options [list debug additional_flags=-I[file dirname $out_header_file]] | |
56 | if {[gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}.o" object ${options}] != ""} { | |
57 | return -1 | |
58 | } | |
59 | ||
60 | # 3. Generate an object file containing a DOF program using dtrace -G. | |
61 | set result [remote_exec host "$dtrace -G -s $dscript_file -o ${binfile}-p.o ${binfile}.o"] | |
62 | verbose -log [lindex $result 1] | |
63 | if {[lindex $result 0] != 0} { | |
64 | return -1 | |
65 | } | |
66 | ||
67 | # 4. Link everything together to get the test program. | |
68 | if {[gdb_compile "${binfile}.o ${binfile}-p.o" ${binfile} executable {debug}] != ""} { | |
69 | return -1 | |
70 | } | |
71 | } |