source: gpfs_3.1_ker2.6.20/lpp/mmfs/src/gpl-linux/Imakefile

Last change on this file was 16, checked in by rock, 17 years ago
File size: 11.0 KB
Line 
1/* $Id: Imakefile,v 1.122.2.10 2006/10/25 18:34:21 mcnabb Exp $ */
2
3/***** THIS MUST BE INCLUDED WITH IMAKE FILES *****/
4/* Only include kernel and cxi headers in this layer */
5SetGplIncludePath()
6/***** THIS MUST BE INCLUDED WITH IMAKE FILES *****/
7
8CheckLinuxDistribution()
9
10PTHREADS = -lpthread
11INSTROOTFLAGS = -c -m 0500
12
13#if (LINUX_KERNEL_VERSION >= 2060000)
14/*
15 * The linux 2.6 kernel adds a new component called "modpost", to all the
16 * kernel modules. Typically, this is done automatically by the linux kernel
17 * build infrastructure (kbuild). But the kbuild infrastructure is quite cryptic
18 * to be used by modules like GPFS. Hence, we bypass the linux kbuild
19 * infrastructure and do the modpost work ourselves.
20 *
21 * Here is the summary of what we do:
22 * If the ".c" file exports a function to the linux kernel then we add the
23 * CRC of all such functions to the object. This is done to detect version
24 * mismatch between modules/kernel.
25 * If a ".c" file exports a function, then its object would have a "__ksymtab"
26 * section.
27 * For all such ".c" files, we recompile it with -E -D__GENKSYMS__ defined and
28 * feed the output to "genksyms" program, which calculates the CRC for all
29 * such functions. We then put this information into the object file so that
30 * the corresponding modpost file contains the CRCs required for the module.
31 * (The modpost work is done in the Imakefile for the "gpl-linux" directory.)
32 */
33OBJDUMP = /usr/bin/objdump
34GENKSYMS = $(KERNEL_BUILD_DIR)/scripts/genksyms/genksyms
35handle_linux_sym = @if [ ! -f $(GENKSYMS) ]; then \ @@\
36                echo "$(GENKSYMS) not found. Check the value of KERNEL_BUILD_DIR in site.mcr";\ @@\
37          exit 1; \ @@\
38             fi;  \ @@\
39       $(OBJDUMP) -h $1 | grep -q  __ksymtab;         \ @@\
40             if [ $$? -eq 0 ]; then                     \ @@\
41          $(C_COMP) -E -D__GENKSYMS__ $(KCFLAGS) $2 | $(GENKSYMS) > $1.ver;    \  @@\
42                mv $1 $1.tmp;               \ @@\
43          $(BARELD) -r -o $1 $1.tmp -T $1.ver;      \ @@\
44          rm -f $1.tmp;             \ @@\
45             fi
46#endif /* LINUX_KERNEL_VERSION */
47
48
49#if (LINUX_KERNEL_VERSION >= 2060000)
50#ifdef LinuxKernelObjectRule
51#undef LinuxKernelObjectRule
52#define LinuxKernelObjectRule()       @@\
53.c.ko:                                                  @@\
54  $(RM) $@                                        @@\
55  $(C_COMP) -o $@ -c $(KCFLAGS) $*.c              @@\
56  $(call handle_linux_sym,$@,$*.c)
57#endif /* LinuxKernelObjectRule */
58#endif /* LINUX_KERNEL_VERSION */
59
60NormalObjectRule()
61
62#define IHaveSubdirs
63#ifdef GPFS_ARCH_POWER
64SUBDIRS = power
65#endif
66#ifdef GPFS_ARCH_I386
67#undef i386
68SUBDIRS = i386
69#endif
70#ifdef GPFS_ARCH_IA64
71SUBDIRS = "ia64"
72#endif
73#ifdef GPFS_ARCH_PPC64
74SUBDIRS = ppc64
75#endif
76#ifdef GPFS_ARCH_X86_64
77SUBDIRS = x86_64
78#endif
79
80#ifdef GPFS_ARCH_POWER
81STD_KINCLUDES += -I$(KERNEL_HEADER_DIR)/../arch/ppc
82#endif
83
84#ifdef GPFS_ARCH_I386
85STD_KINCLUDES += -I$(KERNEL_HEADER_DIR)/../arch/$(SUBDIRS)/mach-generic \
86                -I$(KERNEL_HEADER_DIR)/asm-$(SUBDIRS)/mach-default
87#endif
88
89#if (LINUX_KERNEL_VERSION > 2060000)
90KCFLAGS += $(shell $(DESTDIR)/bin/getupdatelevel)
91#endif
92
93#if (LINUX_KERNEL_VERSION >= 2061600)
94comma = ,
95name-fix = $(subst $(comma),_,$(subst -,_,$1))
96basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(*F)))"
97KCFLAGS += -D"KBUILD_STR(s)=\#s" $(basename_flags)
98#if (LINUX_KERNEL_VERSION >= 2061900)
99STD_KINCLUDES += -include $(KERNEL_HEADER_DIR)/linux/autoconf.h
100#endif
101#endif
102
103HEADERS = Shark-gpl.h prelinux.h postlinux.h linux2gpfs.h verdep.h \
104          Logger-gpl.h arch-gpl.h
105#ifdef SMB_LOCKS
106HEADERS += oplock.h
107#endif
108
109LINUX_VFS = opsdeclare.ko gpl-ksyms.ko \
110            gplInit.ko block.ko file.ko inode.ko dir.ko \
111            super.ko cxiSystem.ko cxiVFSStats.ko cxiIOBuffer.ko \
112            kx.ko mmap.ko ss.ko acl.ko
113
114LINUX_CUSTOM = cfiles_cust.ko
115
116#if defined(GPFS_ARCH_I386) && (LINUX_KERNEL_VERSION > 2060500) && !defined(NOKREGPARMS)
117MMLDFLAGS  += --wrap __divdi3 --wrap __udivdi3 --wrap __moddi3 --wrap __umoddi3
118MMFS = mmfs-i386r
119/* kdump must have regparms turned off */
120KDUMPCFLAGS = $(KCFLAGS) -mregparm=0
121#else
122#if defined(GPFS_ARCH_IA64) && (LINUX_KERNEL_VERSION > 2060500)
123/* Need to include additional code sections with ia64 2.6 kernel modules */
124MMLDFLAGS = -T /usr/src/linux/arch/ia64/module.lds
125#else
126MMLDFLAGS =
127#endif
128MMFS = mmfs
129KDUMPCFLAGS = $(KCFLAGS)
130#endif
131#if defined(GPFS_ARCH_PPC64) && (LINUX_KERNEL_VERSION > 2060900)
132MMFS = mmfs-ppc64-rh4
133#endif
134
135#if (LINUX_KERNEL_VERSION > 2060000)
136
137/*
138 * The default value for KERNEL_BUILD_DIR in site.mcr contains backquotes,
139 * which the "make" does not understand. So, we call the shell to expand it
140 */
141KERNEL_BUILD_DIR := $(call shell, echo "$(KERNEL_BUILD_DIR)")
142#ifdef PCE_26_PCE
143MODPOST := $(KERNEL_BUILD_DIR)/scripts/mod/modpost
144#else
145MODPOST := $(if $(wildcard $(KERNEL_BUILD_DIR)/scripts/mod/modpost), \
146          $(KERNEL_BUILD_DIR)/scripts/mod/modpost, \
147              $(KERNEL_BUILD_DIR)/scripts/modpost)
148#endif
149
150SYSVERFILE := $(KERNEL_BUILD_DIR)/Module.symvers
151
152ifeq ($(LINUX_DISTRIBUTION), REDHAT_AS_LINUX)
153        MODPOST_FLAG := -m
154else
155/* The modpost program on SLES9 does not recognize '-m' flag. The modversioning
156   seems to be turned on by default. But on SLES10, this program requires the
157   '-m' flag.
158*/
159#if (LINUX_KERNEL_VERSION >= 2061600)
160        MODPOST_FLAG := -m
161#else
162        MODPOST_FLAG :=
163#endif
164endif
165
166#if (LINUX_KERNEL_VERSION >= 2061600 )
167gpfs_module_name = -DKBUILD_MODNAME=\"$1\"
168#else
169gpfs_module_name = -DKBUILD_MODNAME=$1
170#endif
171
172/*
173 * For Linux kernel 2.6, we handle the modpost work ourselves. This way, we can
174 * use the kernel modversioning to detect module/kernel mismatch.
175 * To achieve this we do the folloing things:
176 * (1) Recompile all the ".c" files which export functions to the linux kernel.
177 *     - the ".c" files are recompiled with -E -D__GENKSYMS__ and its output is
178 *       is feeded to the "genksyms" program, which calculates the CRC for
179 *       the function signature (for MODVERSION).
180 *       This part is done in the "imake.tmpl" file.
181 * (2) Inovke the "modpost" script to generate "tracedev.mod.c" and
182 *     "mmfslinux.mod.c" files and relinking it to the corresponding module.
183 *
184 * Note that for mmfs26 module, we continue to use the modpost.c file in the
185 * gpl-linux directory. 
186 */
187
188
189#ifdef PCE_26_PCE
190/*
191 * Experimental:
192 * 2.6.16 code seems to want the module name quoted in order to compile.
193 */
194handle_modpost = @if [ ! -f $(MODPOST) ] ; then \ @@\
195        echo "$(MODPOST) not found. Check the value of \ @@\
196              KERNEL_BUILD_DIR in site.mcr file."; \ @@\
197        exit 1;  \  @@\
198                 fi; \ @@\
199                 $(MODPOST) $(MODPOST_FLAG) -i $2 -o $1.symvers $(PWD)/$1 ; \ @@\
200     $(C_COMP) -o $1.mod.o -c $(KCFLAGS) -DKBUILD_MODNAME=\"$1\" $1.mod.c
201#else
202handle_modpost = @if [ ! -f $(MODPOST) ] ; then \ @@\
203        echo "$(MODPOST) not found. Check the value of \ @@\
204              KERNEL_BUILD_DIR in site.mcr file."; \ @@\
205        exit 1;  \  @@\
206                 fi; \ @@\
207                 $(MODPOST) $(MODPOST_FLAG) -i $2 -o $1.symvers $(PWD)/$1 ; \ @@\
208     $(C_COMP) -o $1.mod.o -c $(KCFLAGS) $(call gpfs_module_name,$1) $1.mod.c
209#endif
210
211
212#endif
213
214SharedObjectTarget(libgpfs_gpl.so, tscalls.o, -lc)
215InstallFiles(libgpfs_gpl.so, $(INSTPROGFLAGS), $(GPL_LIB_DIR))
216
217tracedev: tracedev.ko tracedev-ksyms.ko
218  $(RM) $@
219  $(BARELD) -r -o $@  -Map $@.map --cref $(MMLDFLAGS) $^
220#if (LINUX_KERNEL_VERSION > 2060000)
221  @if [ ! -f $(SYSVERFILE) ]; then \ @@\
222    echo "WARNING: $(SYSVERFILE) file not found. Check the value of KERNEL_BUILD_DIR \ @@\
223      in site.mcr file"; \ @@\
224  fi
225  $(call handle_modpost,$@,$(SYSVERFILE))
226  mv -f $@ $@.tmp
227  $(BARELD) -r -o $@ -Map $@.map --cref $(MMLDFLAGS) $@.tmp $@.mod.o $$($(C_COMP) -print-libgcc-file-name)
228  mv -f $@.mod.c $@.mod.c.saved
229  rm -f $@.tmp
230#endif
231
232MMFS_KEXTS = mmfslinux
233#if (LINUX_KERNEL_VERSION > 2060000)
234MMFS_KEXTS += mmfs26
235#endif
236
237#ifdef MOUNT_HELPER
238ROOT_CMDS = lxtrace dumpconv umount.gpfs
239#else
240ROOT_CMDS = lxtrace dumpconv
241#endif
242
243SITEMCRREV_ARG = $(filter 1.%,$(SITEMCRREV_RAW))
244KCFLAGS += -D'SITEMCRREV="$(SITEMCRREV_ARG)"'
245
246mmfslinux: $(LINUX_CUSTOM) $(GPL_LIB_DIR)/libarch-gpl_cust.a mmwrap.ko tracedev
247  $(RM) $@
248  $(BARELD) -r -o $@ $(LINUX_CUSTOM) $(GPL_LIB_DIR)/libarch-gpl_cust.a \
249                -Map $@.map --cref $(MMLDFLAGS) \
250                mmwrap.ko $$($(C_COMP) -print-libgcc-file-name)
251#if (LINUX_KERNEL_VERSION > 2060000)
252  $(call handle_modpost,$@,tracedev.symvers)
253  mv -f $@ $@.tmp
254  $(BARELD) -r -o $@ -Map $@.map --cref $(MMLDFLAGS) $@.tmp $@.mod.o $$($(C_COMP) -print-libgcc-file-name)
255  mv -f $@.mod.c $@.mod.c.saved
256  rm -f $@.tmp
257#endif
258
259#if (LINUX_KERNEL_VERSION > 2060000)
260mmfs26: $(DESTDIR)/bin/$(MMFS) mmfsmod.ko mmwrap.ko
261  $(RM) $@
262  $(BARELD) -r -o $@ $(DESTDIR)/bin/$(MMFS) mmfsmod.ko -Map $@.map \
263    --cref $(MMLDFLAGS) mmwrap.ko \
264    $$($(C_COMP) -print-libgcc-file-name)
265  $(call handle_modpost,$@,mmfslinux.symvers)
266  mv -f $@ $@.tmp
267  $(BARELD) -r -o $@ -Map $@.map --cref $(MMLDFLAGS) $@.tmp $@.mod.o $$($(C_COMP) -print-libgcc-file-name)
268  mv -f $@.mod.c $@.mod.c.saved
269#endif
270
271#if (LINUX_KERNEL_VERSION < 2060000)
272MMFS_KEXTS += mmfs24
273
274mmfs24: $(DESTDIR)/bin/$(MMFS) ibmInitWrap.ko
275  $(RM) $@
276  $(BARELD) -r -o $@ $(DESTDIR)/bin/$(MMFS) ibmInitWrap.ko \
277    $(MMLDFLAGS) -Map $@.map
278
279ibmInitWrap.ko: ibmInitWrap.C
280  $(RM) $@
281  $(C_COMP) -o $@ -c $(KCFLAGS) ibmInitWrap.C
282#endif
283
284
285clean:: ; $(RM) $(MMFS_KEXTS) $(ROOT_CMDS) tracedev *.symvers *.mod.c
286
287MkdirTarget($(GPL_HEADER_DIR))
288InstallHeaders($(HEADERS), $(GPL_HEADER_DIR))
289
290InstallRootPrograms($(MMFS_KEXTS), $(DESTDIR)/bin)
291
292/* Special rule for kdump so we get stabs info */
293kdump-kern.ko: kdump-kern.c kdump.h
294  $(RM) $@
295  $(C_COMP) -o $@ -c $(KDUMPCFLAGS) -DNOSTABS $*.c
296
297kdump-kern-stabs.ko: kdump-kern.c kdump.h
298  $(RM) $@
299  $(C_COMP) -o $@ -c $(KDUMPCFLAGS) -gstabs+ kdump-kern.c
300
301KDUMP = kdump.o kdump-kern.ko kdump-kern-stabs.ko
302ProgramTarget(kdump, $(KDUMP), , )
303
304#ifdef MOUNT_HELPER
305MNTHELP = MountHelper.o update_mtab.o
306ProgramTarget(umount.gpfs, $(MNTHELP), , -L $(DESTDIR)/lib -lgpfs )
307InstallFiles(umount.gpfs, $(INSTSHELLFLAGS), $(DESTDIR)/bin)
308#endif
309#if (LINUX_KERNEL_VERSION > 2060000)
310ProgramTarget(lxtrace, lxtrace.o, , $(PTHREADS) -lrt )
311#else
312ProgramTarget(lxtrace, lxtrace.o, , $(PTHREADS))
313#endif
314ProgramTarget(dumpconv, dumpconv.o, , )
315
316InstallFiles(tracedev, $(INSTSHELLFLAGS), $(DESTDIR)/bin)
317#ifndef SRC_BUILD
318InstallFiles(lxtrace.sial, $(INSTSHELLFLAGS), $(DESTDIR)/bin)
319InstallFiles(mmdumpfilocks.sial, $(INSTSHELLFLAGS), $(DESTDIR)/bin)
320#endif
321
322InstallRootPrograms($(ROOT_CMDS), $(DESTDIR)/bin)
323
324/* RPM source build option to install images for kernel modules */
325BUILD_DESTDIR = /usr/lpp/mmfs/bin
326BUILD_INSTALL = $(MMFS_KEXTS) $(ROOT_CMDS) tracedev
327
328InstallImages:: $(BUILD_INSTALL)
329  @(case '$(MAKEFLAGS)' in *[ik]*) set +e;; esac; \
330  for i in $(BUILD_INSTALL); do \
331  (echo $$i; $(INSTALL) $(INSTROOTFLAGS) $$i $(BUILD_DESTDIR)/$$i) done)
332#ifdef MOUNT_HELPER
333  $(INSTALL) $(INSTROOTFLAGS) umount.gpfs /sbin/umount.gpfs
334#endif
335
336TRACELIST = gplInit.c block.c dir.c file.c inode.c super.c \
337            cxiVFSStats.c cxiSystem.c cxiIOBuffer.c kx.c ss.c \
338            mmap.c acl.c
339
340TraceTarget(gpl-linux, $(TRACELIST))
341
342DependTargetPK()
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