XVFS
Check-in [ae8437b96b]
Login
HomeTimelineFilesBranchesTagsTicketsWiki
Overview
Comment:Started work on xvfs-create-c, a pure C version of the builder with no dependencies
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | pure-c
Files: files | file ages | folders
SHA3-256: ae8437b96bb9be94c39eadf358513d0faec8bbe79b702824f0e17b90bdf49ffc
User & Date: rkeene on 2019-12-01 00:16:25
Other Links: branch diff | manifest | tags
Context
2019-12-01
00:17
Added the C file itself check-in: 20809b08ce user: rkeene tags: pure-c
00:16
Started work on xvfs-create-c, a pure C version of the builder with no dependencies check-in: ae8437b96b user: rkeene tags: pure-c
2019-11-14
23:39
Revert [ac58551e55], needs more work check-in: 992994189a user: rkeene tags: trunk
Changes
Hide Diffs Side-by-Side Diffs Ignore Whitespace Patch

Modified Makefile from [fa4437d0b1] to [b414b18e08]. 

1
2
3
4
5
6
7
8
9
10
11
12
13
14







15
16
17
18
19
20
21

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












-
-
-
+
+
+
+
+
+
+








TCL_CONFIG_SH := /usr/lib64/tclConfig.sh
XVFS_ROOT_MOUNTPOINT := //xvfs:/
CPPFLAGS      := -DXVFS_ROOT_MOUNTPOINT='"$(XVFS_ROOT_MOUNTPOINT)"' -I. -DUSE_TCL_STUBS=1 -DXVFS_DEBUG $(shell . "${TCL_CONFIG_SH}" && echo "$${TCL_INCLUDE_SPEC}") $(XVFS_ADD_CPPFLAGS)
CFLAGS        := -fPIC -g3 -ggdb3 -Wall $(XVFS_ADD_CFLAGS)
LDFLAGS       := $(XVFS_ADD_LDFLAGS)
LIBS          := $(shell . "${TCL_CONFIG_SH}" && echo "$${TCL_STUB_LIB_SPEC}")
TCLSH         := tclsh
LIB_SUFFIX    := $(shell . "${TCL_CONFIG_SH}"; echo "$${TCL_SHLIB_SUFFIX:-.so}")

all: example-standalone$(LIB_SUFFIX) example-client$(LIB_SUFFIX) example-flexible$(LIB_SUFFIX) xvfs$(LIB_SUFFIX)

example.c: $(shell find example -type f) $(shell find lib -type f) lib/xvfs/xvfs.c.rvt xvfs-create Makefile
	./xvfs-create --directory example --name example > example.c.new
	mv example.c.new example.c
example.c: $(shell find example -type f) $(shell find lib -type f) lib/xvfs/xvfs.c.rvt xvfs-create-c xvfs-create Makefile
	rm -f example.c.new.1 example.c.new.2
	./xvfs-create-c --directory example --name example > example.c.new.1
	./xvfs-create --directory example --name example > example.c.new.2
	diff -u example.c.new.1 example.c.new.2
	rm -f example.c.new.2
	mv example.c.new.1 example.c

example-standalone.o: example.c xvfs-core.h xvfs-core.c Makefile
	$(CC) $(CPPFLAGS) -DXVFS_MODE_STANDALONE $(CFLAGS) -o example-standalone.o -c example.c

example-standalone$(LIB_SUFFIX): example-standalone.o Makefile
	$(CC) $(CFLAGS) $(LDFLAGS) -shared -o example-standalone$(LIB_SUFFIX) example-standalone.o $(LIBS)
︙
41
42
43
44
45
46
47






48
49
50
51
52
53
54

45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64








+
+
+
+
+
+








# like lib/minirivet, xvfs-core.c, etc) version of "xvfs-create"
xvfs-create-standalone: $(shell find lib -type f) xvfs-create xvfs-core.c xvfs-core.h lib/xvfs/xvfs.c.rvt Makefile
	rm -f xvfs-create-standalone.new xvfs-create-standalone
	./xvfs-create --dump-tcl --remove-debug > xvfs-create-standalone.new
	chmod +x xvfs-create-standalone.new
	mv xvfs-create-standalone.new xvfs-create-standalone

xvfs-create-c: xvfs-create-c.o
	$(CC) $(CFLAGS) $(LDFLAGS) -o xvfs-create-c xvfs-create-c.o $(LIBS)

xvfs-create-c.o: xvfs-create-c.c
	$(CC) $(CPPFLAGS) $(CFLAGS) -o xvfs-create-c.o -c xvfs-create-c.c

xvfs_random$(LIB_SUFFIX): $(shell find example -type f) $(shell find lib -type f) lib/xvfs/xvfs.c.rvt xvfs-create-random Makefile
	./xvfs-create-random | $(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) -DXVFS_MODE_FLEXIBLE -x c - -shared -o xvfs_random$(LIB_SUFFIX) $(LIBS)

xvfs_synthetic$(LIB_SUFFIX): $(shell find lib -type f) lib/xvfs/xvfs.c.rvt xvfs-create-synthetic Makefile
	./xvfs-create-synthetic | $(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) -DXVFS_MODE_FLEXIBLE -x c - -shared -o xvfs_synthetic$(LIB_SUFFIX) $(LIBS)

do-benchmark:
︙
95
96
97
98
99
100
101

102

103
104
105
106
107
108
109

105
106
107
108
109
110
111
112

113
114
115
116
117
118
119
120








+
-
+








	./profile-gperf
	gprof ./profile-gperf
	valgrind --tool=callgrind --callgrind-out-file=callgrind.out ./profile-bare 10 2
	callgrind_annotate callgrind.out

clean:
	rm -f xvfs-create-standalone.new xvfs-create-standalone
	rm -f xvfs-create-c.o xvfs-create-c
	rm -f example.c example.c.new
	rm -f example.c example.c.new example.c.new.1 example.c.new.2
	rm -f example-standalone$(LIB_SUFFIX) example-standalone.o
	rm -f example-client.o example-client$(LIB_SUFFIX)
	rm -f example-flexible.o example-flexible$(LIB_SUFFIX)
	rm -f xvfs.o xvfs$(LIB_SUFFIX)
	rm -f example-standalone.gcda example-standalone.gcno
	rm -f example-client.gcda example-client.gcno
	rm -f example-flexible.gcda example-flexible.gcno
︙

Modified lib/xvfs/xvfs.c.rvt from [ced159acac] to [becb8ac3f3]. 

1







2
3

4
5
6
7
8
9
10

1
2
3
4
5
6
7
8
9

10
11
12
13
14
15
16
17


+
+
+
+
+
+
+

-
+








<?
	# Care must be taken when editing this file as
	# it may be processed by either "xvfs-create"
	# which uses a full Tcl and Rivet parser
	# or by "xvfs-create-c" which uses a much
	# simpler one that only knows about printable
	# sections and ignores all Tcl sections

	if {[info exists ::xvfs::xvfsCoreH]} {
?><?= $::xvfs::xvfsCoreH ?><?
		::minirivet::_emitOutput $::xvfs::xvfsCoreH
	} else {
?>#include <xvfs-core.h><? } ?>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include <tcl.h>
︙
51
52
53
54
55
56
57
58
59


60
61
62
63
64
65
66
67

58
59
60
61
62
63
64


65
66

67
68
69
70
71
72
73








-
-
+
+
-








	} data;
};
#endif

<?
	package require xvfs

	xvfs::main $::xvfs::argv

	set ::xvfs::fileInfoStruct [xvfs::main $::xvfs::argv]
?><?= $::xvfs::fileInfoStruct ?>
?>
static long xvfs_<?= $::xvfs::fsName ?>_nameToIndex(const char *path) {
<?
		if {[llength $::xvfs::outputFiles] < 3} {
			set hashMode perfectHashFunction
		} else {
			set hashMode hashTable
		}
︙

Modified lib/xvfs/xvfs.tcl from [842e8c1c67] to [6afa223420]. 

1
2
3
4
5
6
7
8
9
10
11
12
13

14
15
16
17
18
19
20
21

1
2
3
4
5
6
7
8
9




10

11
12
13
14
15
16
17










-
-
-
-
+
-








#! /usr/bin/env tclsh

namespace eval ::xvfs {}
namespace eval ::xvfs::callback {}

set ::xvfs::_xvfsDir [file dirname [info script]]

# Functions
proc ::xvfs::_emitLine {line} {
	if {[info command ::minirivet::_emitOutput] ne ""} {
		::minirivet::_emitOutput "${line}\n"
	} else {
		puts $line
	lappend ::xvfs::_emitLine $line
	}
}

proc ::xvfs::printHelp {channel {errors ""}} {
	if {[llength $errors] != 0} {
		foreach error $errors {
			puts $channel "error: $error"
		}
︙
278
279
280
281
282
283
284



285
286
287
288
289
290
291

274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290








+
+
+








	}

	## 3. Start processing directory and producing initial output
	set ::xvfs::outputFiles [processDirectory $fsName $rootDirectory]

	set ::xvfs::fsName $fsName
	set ::xvfs::rootDirectory $rootDirectory

	# Return the output
	return [join $::xvfs::_emitLine "\n"]
}

proc ::xvfs::run {args} {
	uplevel #0 { package require minirivet }

	set ::xvfs::argv $args
	::minirivet::parse [file join $::xvfs::_xvfsDir xvfs.c.rvt]
︙

Powered by Fossil · RSS