mirror of
https://github.com/lm-sensors/lm-sensors.git
synced 2026-10-19 11:19:31 +00:00
Jean Delvare
67218f03c3
Instead, access sysfs directly, using 3 embedded helper functions. My motivations for doing this are: * As far as I know, libsysfs is no longer maintained. * libsysfs does much more than we need. For example, when asking for a device attribute list, libsysfs will read the contents and permissions of all attributes. Not only does this waste CPU cycles per se, but in the case of hwmon driver it also triggers register reads, which can be slow for SMBus chips. * libsysfs enforces the difference between devices and class devices, while future changes will be easier if we can handle both types alike. git-svn-id: http://lm-sensors.org/svn/lm-sensors/branches/lm-sensors-3.0.0@5067 7894878c-1315-0410-8ee3-d5d059ff63e0
170 lines
7.8 KiB
Makefile
170 lines
7.8 KiB
Makefile
# Module.mk - Makefile for a Linux module for reading sensor data.
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# Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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# Note that MODULE_DIR (the directory in which this file resides) is a
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# 'simply expanded variable'. That means that its value is substituted
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# verbatim in the rules, until it is redefined.
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MODULE_DIR := lib
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LIB_DIR := $(MODULE_DIR)
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# The manual dirs and files
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LIBMAN3DIR := $(MANDIR)/man3
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LIBMAN3FILES := $(MODULE_DIR)/libsensors.3
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LIBMAN5DIR := $(MANDIR)/man5
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LIBMAN5FILES := $(MODULE_DIR)/sensors.conf.5
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# The main and minor version of the library
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# The library soname (major number) must be changed if and only if the interface is
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# changed in a backward incompatible way. The interface is defined by
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# the public header files - in this case they are error.h and sensors.h.
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LIBMAINVER := 4
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LIBMINORVER := 0.0
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LIBVER := $(LIBMAINVER).$(LIBMINORVER)
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# The static lib name, the shared lib name, and the internal ('so') name of
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# the shared lib.
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LIBSHBASENAME := libsensors.so
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LIBSHLIBNAME := libsensors.so.$(LIBVER)
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LIBSTLIBNAME := libsensors.a
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LIBSHSONAME := libsensors.so.$(LIBMAINVER)
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LIBTARGETS := $(MODULE_DIR)/$(LIBSTLIBNAME) $(MODULE_DIR)/$(LIBSHLIBNAME) \
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$(MODULE_DIR)/$(LIBSHSONAME) $(MODULE_DIR)/$(LIBSHBASENAME)
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LIBCSOURCES := $(MODULE_DIR)/data.c $(MODULE_DIR)/general.c \
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$(MODULE_DIR)/error.c $(MODULE_DIR)/access.c \
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$(MODULE_DIR)/init.c $(MODULE_DIR)/sysfs.c
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LIBOTHEROBJECTS := $(MODULE_DIR)/conf-parse.o $(MODULE_DIR)/conf-lex.o
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LIBSHOBJECTS := $(LIBCSOURCES:.c=.lo) $(LIBOTHEROBJECTS:.o=.lo)
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LIBSTOBJECTS := $(LIBCSOURCES:.c=.ao) $(LIBOTHEROBJECTS:.o=.ao)
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LIBEXTRACLEAN := $(MODULE_DIR)/conf-parse.h $(MODULE_DIR)/conf-parse.c \
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$(MODULE_DIR)/conf-lex.c
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LIBHEADERFILES := $(MODULE_DIR)/error.h $(MODULE_DIR)/sensors.h
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# How to create the shared library
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$(MODULE_DIR)/$(LIBSHLIBNAME): $(LIBSHOBJECTS)
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$(CC) -shared -Wl,-soname,$(LIBSHSONAME) -o $@ $^ -lc -lm
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$(MODULE_DIR)/$(LIBSHSONAME): $(MODULE_DIR)/$(LIBSHLIBNAME)
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$(RM) $@
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$(LN) $(LIBSHLIBNAME) $@
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$(MODULE_DIR)/$(LIBSHBASENAME): $(MODULE_DIR)/$(LIBSHLIBNAME)
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$(RM) $@
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$(LN) $(LIBSHLIBNAME) $@
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# And the static library
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$(MODULE_DIR)/$(LIBSTLIBNAME): $(LIBSTOBJECTS)
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$(RM) $@
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$(AR) rcvs $@ $^
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# Depencies for non-C sources
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$(MODULE_DIR)/conf-lex.c: $(MODULE_DIR)/conf-lex.l $(MODULE_DIR)/general.h \
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$(MODULE_DIR)/data.h $(MODULE_DIR)/conf-parse.h
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$(MODULE_DIR)/conf-parse.c: $(MODULE_DIR)/conf-parse.y $(MODULE_DIR)/general.h \
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$(MODULE_DIR)/data.h
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$(MODULE_DIR)/conf-parse.h: $(MODULE_DIR)/conf-parse.c
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# Include all dependency files
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INCLUDEFILES += $(LIBCSOURCES:.c=.ld) $(LIBCSOURCES:.c=.ad)
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# Special warning prevention for flex-generated files
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FLEXNOWARN:=-Wno-shadow -Wno-undef -Wno-unused -Wno-missing-prototypes -Wno-sign-compare
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$(MODULE_DIR)/conf-lex.ao: $(MODULE_DIR)/conf-lex.c
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$(CC) $(ARCPPFLAGS) $(ARCFLAGS) $(FLEXNOWARN) -c $< -o $@
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$(MODULE_DIR)/conf-lex.lo: $(MODULE_DIR)/conf-lex.c
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$(CC) $(LIBCPPFLAGS) $(LIBCFLAGS) $(FLEXNOWARN) -c $< -o $@
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# Special warning prevention for bison-generated files
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YACCNOWARN:=-Wno-undef
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$(MODULE_DIR)/conf-parse.ao: $(MODULE_DIR)/conf-parse.c
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$(CC) $(ARCPPFLAGS) $(ARCFLAGS) $(YACCNOWARN) -c $< -o $@
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$(MODULE_DIR)/conf-parse.lo: $(MODULE_DIR)/conf-parse.c
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$(CC) $(LIBCPPFLAGS) $(LIBCFLAGS) $(YACCNOWARN) -c $< -o $@
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REMOVELIBST := $(patsubst $(MODULE_DIR)/%,$(DESTDIR)$(LIBDIR)/%,$(LIB_DIR)/$(LIBSTLIBNAME))
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REMOVELIBSH := $(patsubst $(MODULE_DIR)/%,$(DESTDIR)$(LIBDIR)/%,$(LIB_DIR)/$(LIBSHLIBNAME))
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REMOVELNSO := $(DESTDIR)$(LIBDIR)/$(LIBSHSONAME)
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REMOVELNBS := $(DESTDIR)$(LIBDIR)/$(LIBSHBASENAME)
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REMOVELIBHF := $(patsubst $(MODULE_DIR)/%,$(DESTDIR)$(LIBINCLUDEDIR)/%,$(LIBHEADERFILES))
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REMOVEMAN3 := $(patsubst $(MODULE_DIR)/%,$(DESTDIR)$(LIBMAN3DIR)/%,$(LIBMAN3FILES))
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REMOVEMAN5 := $(patsubst $(MODULE_DIR)/%,$(DESTDIR)$(LIBMAN5DIR)/%,$(LIBMAN5FILES))
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all-lib: $(LIBTARGETS)
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user :: all-lib
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# Generate warnings if the install directory isn't in /etc/ld.so.conf
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# or if the library wasn't there before (which means ldconfig must be run).
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# Note that some ld.so's put /usr/lib and /lib first, others put them last,
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# so we can't make any assumptions.
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install-lib: all-lib
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$(MKDIR) $(DESTDIR)$(LIBDIR) $(DESTDIR)$(LIBINCLUDEDIR) $(DESTDIR)$(LIBMAN3DIR) $(DESTDIR)$(LIBMAN5DIR)
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@if [ -z "$(DESTDIR)" -a ! -e "$(LIBDIR)/$(LIBSHSONAME)" ] ; then \
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echo '******************************************************************************' ; \
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echo 'Warning: This is the first installation of the $(LIBSHSONAME)*' ; \
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echo ' library files in $(LIBDIR)!' ; \
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echo ' You must update the library cache or the userspace tools may fail' ; \
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echo ' or have unpredictable results!' ; \
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echo ' Run the following command: /sbin/ldconfig' ; \
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echo '******************************************************************************' ; \
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fi
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$(INSTALL) -m 644 $(LIB_DIR)/$(LIBSTLIBNAME) $(DESTDIR)$(LIBDIR)
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$(INSTALL) -m 755 $(LIB_DIR)/$(LIBSHLIBNAME) $(DESTDIR)$(LIBDIR)
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$(LN) $(LIBSHLIBNAME) $(DESTDIR)$(LIBDIR)/$(LIBSHSONAME)
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$(LN) $(LIBSHSONAME) $(DESTDIR)$(LIBDIR)/$(LIBSHBASENAME)
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@if [ -z "$(DESTDIR)" -a "$(LIBDIR)" != "/usr/lib" -a "$(LIBDIR)" != "/lib" ] ; then \
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if [ -e "/usr/lib/$(LIBSHSONAME)" -o -e "/usr/lib/$(LIBSHBASENAME)" ] ; then \
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echo '******************************************************************************' ; \
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echo 'Warning: You have at least one $(LIBSHBASENAME) library file in /usr/lib' ; \
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echo ' and the new library files are in $(LIBDIR)!' ; \
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echo ' These old files must be removed or the userspace tools may fail' ; \
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echo ' or have unpredictable results!' ; \
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echo ' Run the following command: rm /usr/lib/$(LIBSHBASENAME)*' ; \
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echo '******************************************************************************' ; \
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fi ; \
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grep -q '^$(LIBDIR)$$' /etc/ld.so.conf || \
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grep -q '^$(LIBDIR)[[:space:]:,=]' /etc/ld.so.conf || \
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grep -q '[[:space:]:,]$(LIBDIR)$$' /etc/ld.so.conf || \
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grep -q '[[:space:]:,]$(LIBDIR)[[:space:]:,=]' /etc/ld.so.conf || \
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( echo '******************************************************************************' ; \
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echo 'Warning: Library directory $(LIBDIR) is not in /etc/ld.so.conf!' ; \
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echo ' Add it and run /sbin/ldconfig for the userspace tools to work.' ; \
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echo '******************************************************************************' ) ; \
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fi
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$(INSTALL) -m 644 $(LIBHEADERFILES) $(DESTDIR)$(LIBINCLUDEDIR)
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$(INSTALL) -m 644 $(LIBMAN3FILES) $(DESTDIR)$(LIBMAN3DIR)
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$(INSTALL) -m 644 $(LIBMAN5FILES) $(DESTDIR)$(LIBMAN5DIR)
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user_install :: install-lib
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user_uninstall::
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$(RM) $(REMOVELIBST) $(REMOVELIBSH) $(REMOVELNSO) $(REMOVELNBS)
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$(RM) $(REMOVELIBHF) $(REMOVEMAN3) $(REMOVEMAN5)
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# Remove directory if empty, ignore failure
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$(RMDIR) $(DESTDIR)$(LIBINCLUDEDIR) 2> /dev/null || true
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clean-lib:
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$(RM) $(LIB_DIR)/*.ld $(LIB_DIR)/*.ad
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$(RM) $(LIB_DIR)/*.lo $(LIB_DIR)/*.ao
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$(RM) $(LIBTARGETS) $(LIBEXTRACLEAN)
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# old versions
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$(RM) $(LIB_DIR)/$(LIBSHBASENAME).*
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clean :: clean-lib
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