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Grow.c: fix uninitialized variables compilation-time error
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64c4757e 1#
9a9dab36 2# mdadm - manage Linux "md" devices aka RAID arrays.
64c4757e 3#
cd29a5c8 4# Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
64c4757e
NB
5#
6#
7# This program is free software; you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation; either version 2 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program; if not, write to the Free Software
19# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20#
21# Author: Neil Brown
22# Email: <neilb@cse.unsw.edu.au>
23# Paper: Neil Brown
24# School of Computer Science and Engineering
25# The University of New South Wales
26# Sydney, 2052
27# Australia
28#
29
2d465520
NB
30# define "CXFLAGS" to give extra flags to CC.
31# e.g. make CXFLAGS=-O to optimise
5787fa49 32TCC = tcc
e5329c37 33UCLIBC_GCC = $(shell for nm in i386-uclibc-linux-gcc i386-uclibc-gcc; do which $$nm > /dev/null && { echo $$nm ; exit; } ; done; echo false No uclibc found )
1cccd683
N
34#DIET_GCC = diet gcc
35# sorry, but diet-libc doesn't know about posix_memalign,
36# so we cannot use it any more.
37DIET_GCC = gcc -DHAVE_STDINT_H
b5e64645
NB
38
39KLIBC=/home/src/klibc/klibc-0.77
40
41KLIBC_GCC = gcc -nostdinc -iwithprefix include -I$(KLIBC)/klibc/include -I$(KLIBC)/linux/include -I$(KLIBC)/klibc/arch/i386/include -I$(KLIBC)/klibc/include/bits32
5787fa49 42
c9fae710 43CC = $(CROSS_COMPILE)gcc
2d465520 44CXFLAGS = -ggdb
f21e18ca 45CWFLAGS = -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
3d2c4fc7
DW
46ifdef WARN_UNUSED
47CWFLAGS += -Wp,-D_FORTIFY_SOURCE=2 -O
48endif
5bbb4842
NB
49
50ifdef DEBIAN
bb624f78 51CPPFLAGS += -DDEBIAN
26f467a9 52endif
53ifdef DEFAULT_OLD_METADATA
bb624f78 54 CPPFLAGS += -DDEFAULT_OLD_METADATA
26f467a9 55 DEFAULT_METADATA=0.90
56else
57 DEFAULT_METADATA=1.2
5bbb4842
NB
58endif
59
fa0d79e2
SS
60PKG_CONFIG ?= pkg-config
61
11a3e71d
NB
62SYSCONFDIR = /etc
63CONFFILE = $(SYSCONFDIR)/mdadm.conf
4e9b5839 64CONFFILE2 = $(SYSCONFDIR)/mdadm/mdadm.conf
aa88f531 65MAILCMD =/usr/sbin/sendmail -t
4e9b5839 66CONFFILEFLAGS = -DCONFFILE=\"$(CONFFILE)\" -DCONFFILE2=\"$(CONFFILE2)\"
753cf905
DL
67# Both MAP_DIR and MDMON_DIR should be somewhere that persists across the
68# pivotroot from early boot to late boot.
96fd06ed
N
69# /run is best, but for distros that don't support that, /dev can work.
70MAP_DIR=/run/mdadm
753cf905 71MAP_FILE = map
96fd06ed
N
72MAP_PATH = $(MAP_DIR)/$(MAP_FILE)
73MDMON_DIR = $(MAP_DIR)
403410eb 74# place for autoreplace cookies
96fd06ed 75FAILED_SLOTS_DIR = /run/mdadm/failed-slots
753cf905
DL
76DIRFLAGS = -DMAP_DIR=\"$(MAP_DIR)\" -DMAP_FILE=\"$(MAP_FILE)\"
77DIRFLAGS += -DMDMON_DIR=\"$(MDMON_DIR)\"
403410eb 78DIRFLAGS += -DFAILED_SLOTS_DIR=\"$(FAILED_SLOTS_DIR)\"
753cf905 79CFLAGS = $(CWFLAGS) $(CXFLAGS) -DSendmail=\""$(MAILCMD)"\" $(CONFFILEFLAGS) $(DIRFLAGS)
11a3e71d 80
f4190c2f
DW
81# The glibc TLS ABI requires applications that call clone(2) to set up
82# TLS data structures, use pthreads until mdmon implements this support
83USE_PTHREADS = 1
84ifdef USE_PTHREADS
85CFLAGS += -DUSE_PTHREADS
5d40884d 86MON_LDFLAGS += -pthread
f4190c2f
DW
87endif
88
11a3e71d
NB
89# If you want a static binary, you might uncomment these
90# LDFLAGS = -static
91# STRIP = -s
64c4757e 92
cd29a5c8 93INSTALL = /usr/bin/install
c913b90e 94DESTDIR =
9a9dab36 95BINDIR = /sbin
c913b90e
NB
96MANDIR = /usr/share/man
97MAN4DIR = $(MANDIR)/man4
98MAN5DIR = $(MANDIR)/man5
99MAN8DIR = $(MANDIR)/man8
cd29a5c8 100
fa0d79e2
SS
101UDEVDIR := $(shell $(PKG_CONFIG) --variable=udevdir udev 2>/dev/null)
102ifndef UDEVDIR
103 UDEVDIR = /lib/udev
104endif
105
78c0a3b1 106OBJS = mdadm.o config.o policy.o mdstat.o ReadMe.o util.o maps.o lib.o \
32367cb5 107 Manage.o Assemble.o Build.o \
c82f047c 108 Create.o Detail.o Examine.o Grow.o Monitor.o dlink.o Kill.o Query.o \
8382f19b 109 Incremental.o \
cdddbdbc 110 mdopen.o super0.o super1.o super-ddf.o super-intel.o bitmap.o \
0592faeb 111 super-mbr.o super-gpt.o \
1cc101f3 112 restripe.o sysfs.o sha1.o mapfile.o crc32.o sg_io.o msg.o xmalloc.o \
88c32bb1
DW
113 platform-intel.o probe_roms.o
114
1cc101f3 115CHECK_OBJS = restripe.o sysfs.o maps.o lib.o xmalloc.o
979afcb8 116
32367cb5 117SRCS = $(patsubst %.o,%.c,$(OBJS))
4b1ac34b 118
0f22b998
N
119INCL = mdadm.h part.h bitmap.h
120
32367cb5 121MON_OBJS = mdmon.o monitor.o managemon.o util.o maps.o mdstat.o sysfs.o \
78c0a3b1 122 config.o policy.o lib.o \
549e9569 123 Kill.o sg_io.o dlink.o ReadMe.o super0.o super1.o super-intel.o \
0592faeb 124 super-mbr.o super-gpt.o \
1cc101f3 125 super-ddf.o sha1.o crc32.o msg.o bitmap.o xmalloc.o \
88c32bb1 126 platform-intel.o probe_roms.o
549e9569 127
32367cb5 128MON_SRCS = $(patsubst %.o,%.c,$(MON_OBJS))
549e9569 129
8268ed74
NB
130STATICSRC = pwgr.c
131STATICOBJS = pwgr.o
1377730f 132
5527fc74 133ASSEMBLE_SRCS := mdassemble.c Assemble.c Manage.c config.c policy.c dlink.c util.c \
1cc101f3 134 maps.c lib.c xmalloc.c \
88c32bb1 135 super0.c super1.c super-ddf.c super-intel.c sha1.c crc32.c sg_io.c mdstat.c \
0592faeb 136 platform-intel.c probe_roms.c sysfs.c super-mbr.c super-gpt.c
8844e291 137ASSEMBLE_AUTO_SRCS := mdopen.c
b56c3630 138ASSEMBLE_FLAGS:= $(CFLAGS) -DMDASSEMBLE
b5e64645 139ifdef MDASSEMBLE_AUTO
7702a58b 140ASSEMBLE_SRCS += $(ASSEMBLE_AUTO_SRCS)
c7654afc 141ASSEMBLE_FLAGS += -DMDASSEMBLE_AUTO
b5e64645 142endif
cd29a5c8 143
9e69baf3 144all : mdadm mdmon
c48d75d3 145man : mdadm.man md.man mdadm.conf.man mdmon.man raid6check.man
64c4757e 146
5624768a 147everything: all mdadm.static swap_super test_stripe \
7815fbfe 148 mdassemble mdassemble.auto mdassemble.static mdassemble.man \
9e69baf3 149 mdadm.Os mdadm.O2 man
388953d2
N
150everything-test: all mdadm.static swap_super test_stripe \
151 mdassemble.auto mdassemble.static mdassemble.man \
9e69baf3 152 mdadm.Os mdadm.O2 man
f783ca4f 153# mdadm.uclibc and mdassemble.uclibc don't work on x86-64
8431b2b2 154# mdadm.tcc doesn't work..
5787fa49 155
c97be4db 156mdadm : $(OBJS)
8ccca44d 157 $(CC) $(CFLAGS) $(LDFLAGS) -o mdadm $(OBJS) $(LDLIBS)
64c4757e 158
c97be4db 159mdadm.static : $(OBJS) $(STATICOBJS)
8ccca44d 160 $(CC) $(CFLAGS) $(LDFLAGS) -static -o mdadm.static $(OBJS) $(STATICOBJS)
5787fa49 161
0f22b998 162mdadm.tcc : $(SRCS) $(INCL)
5787fa49
NB
163 $(TCC) -o mdadm.tcc $(SRCS)
164
0f22b998 165mdadm.klibc : $(SRCS) $(INCL)
d013a55e 166 rm -f $(OBJS)
667e66d3 167 $(CC) -nostdinc -iwithprefix include -I$(KLIBC)/klibc/include -I$(KLIBC)/linux/include -I$(KLIBC)/klibc/arch/i386/include -I$(KLIBC)/klibc/include/bits32 $(CFLAGS) $(SRCS)
d013a55e 168
0f22b998 169mdadm.Os : $(SRCS) $(INCL)
f4190c2f 170 $(CC) -o mdadm.Os $(CFLAGS) $(LDFLAGS) -DHAVE_STDINT_H -Os $(SRCS)
5624768a 171
0f22b998 172mdadm.O2 : $(SRCS) $(INCL) mdmon.O2
f4190c2f 173 $(CC) -o mdadm.O2 $(CFLAGS) $(LDFLAGS) -DHAVE_STDINT_H -O2 -D_FORTIFY_SOURCE=2 $(SRCS)
fcf57625 174
0f22b998 175mdmon.O2 : $(MON_SRCS) $(INCL) mdmon.h
5d40884d 176 $(CC) -o mdmon.O2 $(CFLAGS) $(LDFLAGS) $(MON_LDFLAGS) -DHAVE_STDINT_H -O2 -D_FORTIFY_SOURCE=2 $(MON_SRCS)
5624768a 177
23eb475a 178# use '-z now' to guarantee no dynamic linker interactions with the monitor thread
549e9569 179mdmon : $(MON_OBJS)
8ccca44d 180 $(CC) $(CFLAGS) $(LDFLAGS) $(MON_LDFLAGS) -Wl,-z,now -o mdmon $(MON_OBJS) $(LDLIBS)
b109d928 181msg.o: msg.c msg.h
549e9569 182
1cc101f3
RB
183test_stripe : restripe.c xmalloc.o mdadm.h
184 $(CC) $(CXFLAGS) $(LDFLAGS) -o test_stripe xmalloc.o -DMAIN restripe.c
e86c9dd6 185
a9c2c6c6
PS
186raid6check : raid6check.o mdadm.h $(CHECK_OBJS)
187 $(CC) $(CXFLAGS) $(LDFLAGS) -o raid6check raid6check.o $(CHECK_OBJS)
979afcb8 188
0f22b998 189mdassemble : $(ASSEMBLE_SRCS) $(INCL)
824cb837
MF
190 $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(ASSEMBLE_FLAGS) -o mdassemble $(ASSEMBLE_SRCS) $(STATICSRC)
191
192mdassemble.diet : $(ASSEMBLE_SRCS) $(INCL)
98c6faba 193 rm -f $(OBJS)
c97be4db 194 $(DIET_GCC) $(ASSEMBLE_FLAGS) -o mdassemble $(ASSEMBLE_SRCS) $(STATICSRC)
98c6faba 195
0f22b998 196mdassemble.static : $(ASSEMBLE_SRCS) $(INCL)
b5e64645 197 rm -f $(OBJS)
c97be4db 198 $(CC) $(LDFLAGS) $(ASSEMBLE_FLAGS) -static -DHAVE_STDINT_H -o mdassemble.static $(ASSEMBLE_SRCS) $(STATICSRC)
b5e64645 199
0f22b998 200mdassemble.auto : $(ASSEMBLE_SRCS) $(INCL) $(ASSEMBLE_AUTO_SRCS)
7815fbfe
NB
201 rm -f mdassemble.static
202 $(MAKE) MDASSEMBLE_AUTO=1 mdassemble.static
203 mv mdassemble.static mdassemble.auto
204
0f22b998 205mdassemble.uclibc : $(ASSEMBLE_SRCS) $(INCL)
d1f1011b 206 rm -f $(OJS)
c97be4db 207 $(UCLIBC_GCC) $(ASSEMBLE_FLAGS) -DUCLIBC -DHAVE_STDINT_H -static -o mdassemble.uclibc $(ASSEMBLE_SRCS) $(STATICSRC)
98c6faba 208
b5e64645 209# This doesn't work
0f22b998 210mdassemble.klibc : $(ASSEMBLE_SRCS) $(INCL)
b5e64645 211 rm -f $(OBJS)
b56c3630 212 $(KLIBC_GCC) $(ASSEMBLE_FLAGS) -o mdassemble $(ASSEMBLE_SRCS)
98c6faba 213
26f467a9 214mdadm.8 : mdadm.8.in
96fd06ed
N
215 sed -e 's/{DEFAULT_METADATA}/$(DEFAULT_METADATA)/g' \
216 -e 's,{MAP_PATH},$(MAP_PATH),g' mdadm.8.in > mdadm.8
26f467a9 217
9a9dab36
NB
218mdadm.man : mdadm.8
219 nroff -man mdadm.8 > mdadm.man
cd29a5c8 220
e0fe762a
N
221mdmon.man : mdmon.8
222 nroff -man mdmon.8 > mdmon.man
223
56eb10c0
NB
224md.man : md.4
225 nroff -man md.4 > md.man
226
227mdadm.conf.man : mdadm.conf.5
228 nroff -man mdadm.conf.5 > mdadm.conf.man
229
ccf44f32
NB
230mdassemble.man : mdassemble.8
231 nroff -man mdassemble.8 > mdassemble.man
232
c48d75d3
PS
233raid6check.man : raid6check.8
234 nroff -man raid6check.8 > raid6check.man
235
0f22b998
N
236$(OBJS) : $(INCL) mdmon.h
237$(MON_OBJS) : $(INCL) mdmon.h
64c4757e 238
05697ec1
NB
239sha1.o : sha1.c sha1.h md5.h
240 $(CC) $(CFLAGS) -DHAVE_STDINT_H -o sha1.o -c sha1.c
05697ec1 241
757a5d74 242install : mdadm mdmon install-man install-udev
c913b90e 243 $(INSTALL) -D $(STRIP) -m 755 mdadm $(DESTDIR)$(BINDIR)/mdadm
4ad866b1 244 $(INSTALL) -D $(STRIP) -m 755 mdmon $(DESTDIR)$(BINDIR)/mdmon
ff7754ed
NB
245
246install-static : mdadm.static install-man
247 $(INSTALL) -D $(STRIP) -m 755 mdadm.static $(DESTDIR)$(BINDIR)/mdadm
248
249install-tcc : mdadm.tcc install-man
250 $(INSTALL) -D $(STRIP) -m 755 mdadm.tcc $(DESTDIR)$(BINDIR)/mdadm
251
252install-uclibc : mdadm.uclibc install-man
253 $(INSTALL) -D $(STRIP) -m 755 mdadm.uclibc $(DESTDIR)$(BINDIR)/mdadm
254
255install-klibc : mdadm.klibc install-man
256 $(INSTALL) -D $(STRIP) -m 755 mdadm.klibc $(DESTDIR)$(BINDIR)/mdadm
257
e0fe762a 258install-man: mdadm.8 md.4 mdadm.conf.5 mdmon.8
c913b90e 259 $(INSTALL) -D -m 644 mdadm.8 $(DESTDIR)$(MAN8DIR)/mdadm.8
e0fe762a 260 $(INSTALL) -D -m 644 mdmon.8 $(DESTDIR)$(MAN8DIR)/mdmon.8
c913b90e
NB
261 $(INSTALL) -D -m 644 md.4 $(DESTDIR)$(MAN4DIR)/md.4
262 $(INSTALL) -D -m 644 mdadm.conf.5 $(DESTDIR)$(MAN5DIR)/mdadm.conf.5
cd29a5c8 263
757a5d74 264install-udev: udev-md-raid.rules
fa0d79e2 265 $(INSTALL) -D -m 644 udev-md-raid.rules $(DESTDIR)$(UDEVDIR)/rules.d/64-md-raid.rules
757a5d74 266
3bb59d40 267uninstall:
e0fe762a 268 rm -f $(DESTDIR)$(MAN8DIR)/mdadm.8 $(DESTDIR)$(MAN8DIR)/mdmon.8 $(DESTDIR)$(MAN4DIR)/md.4 $(DESTDIR)$(MAN5DIR)/mdadm.conf.5 $(DESTDIR)$(BINDIR)/mdadm
3bb59d40 269
55e54759 270test: mdadm mdmon test_stripe swap_super
5624768a
NB
271 @echo "Please run 'sh ./test' as root"
272
64c4757e 273clean :
549e9569 274 rm -f mdadm mdmon $(OBJS) $(MON_OBJS) $(STATICOBJS) core *.man \
a31c140f
N
275 mdadm.tcc mdadm.uclibc mdadm.static *.orig *.porig *.rej *.alt .merge_file_* \
276 mdadm.Os mdadm.O2 mdmon.O2 \
7815fbfe
NB
277 mdassemble mdassemble.static mdassemble.auto mdassemble.uclibc \
278 mdassemble.klibc swap_super \
979afcb8 279 init.cpio.gz mdadm.uclibc.static test_stripe raid6check raid6check.o mdmon \
850a3178 280 mdadm.8
64c4757e
NB
281
282dist : clean
283 ./makedist
682c7051 284
388953d2 285testdist : everything-test clean
1e0d770c
NB
286 ./makedist test
287
682c7051
NB
288TAGS :
289 etags *.h *.c
0bc38b50
DL
290
291DISTRO_MAKEFILE := $(wildcard distropkg/Makefile)
292ifdef DISTRO_MAKEFILE
293include $(DISTRO_MAKEFILE)
294endif
295