diff options
| -rw-r--r-- | Makefile | 152 | ||||
| -rw-r--r-- | klibc/Makefile | 3 | ||||
| -rw-r--r-- | logging.c | 52 | ||||
| -rw-r--r-- | udev.c | 83 | ||||
| -rw-r--r-- | udev.h | 41 |
5 files changed, 331 insertions, 0 deletions
diff --git a/Makefile b/Makefile new file mode 100644 index 00000000..c73ee42a --- /dev/null +++ b/Makefile @@ -0,0 +1,152 @@ +# Makefile for diethotplug +# +# Copyright (C) 2000,2001 Greg Kroah-Hartman <greg@kroah.com> +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; version 2 of the License. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# + +# Set the following to `true' to make a debuggable build. +# Leave this set to `false' for production use. +DEBUG = false + + +ROOT = udev +#PREFIX = diet +VERSION = 0.01 +INSTALL_DIR = /usr/local/bin +RELEASE_NAME = $(PREFIX)$(ROOT)-$(VERSION) + + +# Comment out this line to build with something other +# than the local version of klibc +#KLIBC = true + +# If you are running a cross compiler, you may want to set this +# to something more interesting, like "arm-linux-". I you want +# to compile vs uClibc, that can be done here as well. +CROSS = #/usr/i386-linux-uclibc/usr/bin/i386-uclibc- +CC = $(CROSS)gcc +AR = $(CROSS)ar +STRIP = $(CROSS)strip + + +# code taken from uClibc to determine the current arch +ARCH := ${shell $(CC) -dumpmachine | sed -e s'/-.*//' -e 's/i.86/i386/' -e 's/sparc.*/sparc/' \ + -e 's/arm.*/arm/g' -e 's/m68k.*/m68k/' -e 's/ppc/powerpc/g'} + +# code taken from uClibc to determine the gcc include dir +GCCINCDIR := ${shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp"} + +# code taken from uClibc to determine the libgcc.a filename +GCC_LIB := $(shell $(CC) -print-libgcc-file-name ) + +# use '-Os' optimization if available, else use -O2 +OPTIMIZATION := ${shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \ + then echo "-Os"; else echo "-O2" ; fi} + +WARNINGS := -Wall -Wshadow -Wstrict-prototypes + +# Some nice architecture specific optimizations +ifeq ($(strip $(TARGET_ARCH)),arm) + OPTIMIZATION+=-fstrict-aliasing +endif +ifeq ($(strip $(TARGET_ARCH)),i386) + OPTIMIZATION+=-march=i386 + OPTIMIZATION += ${shell if $(CC) -mpreferred-stack-boundary=2 -S -o /dev/null -xc \ + /dev/null >/dev/null 2>&1; then echo "-mpreferred-stack-boundary=2"; fi} + OPTIMIZATION += ${shell if $(CC) -malign-functions=0 -malign-jumps=0 -S -o /dev/null -xc \ + /dev/null >/dev/null 2>&1; then echo "-malign-functions=0 -malign-jumps=0"; fi} + CFLAGS+=-pipe +else + CFLAGS+=-pipe +endif + +# if DEBUG is enabled, then we do not strip or optimize +ifeq ($(strip $(DEBUG)),true) + CFLAGS += $(WARNINGS) -O1 -g -DDEBUG -D_GNU_SOURCE + LDFLAGS += -Wl,-warn-common + STRIPCMD = /bin/true -Since_we_are_debugging +else + CFLAGS += $(WARNINGS) $(OPTIMIZATION) -fomit-frame-pointer -D_GNU_SOURCE + LDFLAGS += -s -Wl,-warn-common + STRIPCMD = $(STRIP) -s --remove-section=.note --remove-section=.comment +endif + +# If we are using our version of klibc, then we need to build and link it. +# Otherwise, use glibc and link statically. +ifeq ($(strip $(KLIBC)),true) + KLIBC_DIR = klibc + INCLUDE_DIR := $(KLIBC_DIR)/include + # arch specific objects + ARCH_LIB_OBJS = \ + $(KLIBC_DIR)/bin-$(ARCH)/start.o \ + $(KLIBC_DIR)/bin-$(ARCH)/klibc.a + + LIB_OBJS = $(GCC_LIB) + + LIBC = $(ARCH_LIB_OBJS) $(LIB_OBJS) + CFLAGS += -nostdinc -I$(INCLUDE_DIR) -I$(GCCINCDIR) + LDFLAGS = --static --nostdlib -nostartfiles +else + LIBC = + CFLAGS += -I$(GCCINCDIR) + LIB_OBJS = -lc + LDFLAGS = --static +endif + +all: $(LIBC) $(ROOT) + +$(ARCH_LIB_OBJS) : + $(MAKE) -C klibc + +OBJS = udev.o \ + logging.o + + +# header files automatically generated +GEN_HEADERS = udev_version.h + +# Rules on how to create the generated header files +udev_version.h: + @echo \#define UDEV_VERSION \"$(VERSION)\" > $@ + + +$(ROOT): $(GEN_HEADERS) $(OBJS) + $(CC) $(LDFLAGS) -o $(ROOT) $(OBJS) $(LIB_OBJS) $(ARCH_LIB_OBJS) + $(STRIPCMD) $(ROOT) + +clean: + -find . \( -not -type d \) -and \( -name '*~' -o -name '*.[oas]' \) -type f -print \ + | xargs rm -f + -rm -f core $(ROOT) $(GEN_HEADERS) + $(MAKE) -C klibc clean + +DISTFILES = $(shell find . \( -not -name '.' \) -print | grep -v CVS | grep -v "\.tar\.gz" | grep -v "\/\." | grep -v releases | grep -v BitKeeper | grep -v SCCS ) +DISTDIR := $(RELEASE_NAME) +srcdir = . +release: $(DISTFILES) clean +# @echo $(DISTFILES) + @-rm -rf $(DISTDIR) + @mkdir $(DISTDIR) + @-chmod 777 $(DISTDIR) + @for file in $(DISTFILES); do \ + if test -d $$file; then \ + mkdir $(DISTDIR)/$$file; \ + else \ + cp -p $$file $(DISTDIR)/$$file; \ + fi; \ + done + @tar -c $(DISTDIR) | gzip -9 > $(RELEASE_NAME).tar.gz + @rm -rf $(DISTDIR) + @echo "Built $(RELEASE_NAME).tar.gz" diff --git a/klibc/Makefile b/klibc/Makefile new file mode 100644 index 00000000..288a8627 --- /dev/null +++ b/klibc/Makefile @@ -0,0 +1,3 @@ + +clean: + @echo "all clean" diff --git a/logging.c b/logging.c new file mode 100644 index 00000000..e074b156 --- /dev/null +++ b/logging.c @@ -0,0 +1,52 @@ +/* + * logging.c + * + * Simple logging functions that can be compiled away into nothing. + * + * Copyright (C) 2001-2003 Greg Kroah-Hartman <greg@kroah.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation, version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include <stdarg.h> +#include <syslog.h> +#include "udev.h" + +#ifdef DEBUG + +static int logging_init = 0; + +static void init_logging (void) +{ + openlog ("udev", 0, LOG_DAEMON); + logging_init = 1; +} + +/** + * log_message - sends a message to the logging facility + */ +int log_message (int level, const char *format, ...) +{ + va_list args; + + if (!logging_init) + init_logging(); + va_start (args, format); + vsyslog (level, format, args); + va_end (args); + return 1; +} + +#endif @@ -0,0 +1,83 @@ +/* + * udev.c + * + * Userspace devfs + * + * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com> + * + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include <stdlib.h> +#include <string.h> +#include "udev.h" +#include "udev_version.h" + + +static char *get_action(void) +{ + char *action; + + action = getenv("ACTION"); + return action; +} + + +/* yeah this should be dynamically allocated... */ +static char device[255]; + +static char *get_device(void) +{ + char *temp; + + temp = getenv("DEVPATH"); + if (temp == NULL) + return NULL; + strcpy(device, SYSFS_ROOT); + strcat(device, temp); + + return device; +} + + +int main(int argc, char *argv[]) +{ + char *subsystem; + char *action; + char *dev; + + if (argc != 2) { + dbg ("unknown number of arguments"); + return 1; + } + + subsystem = argv[1]; + + action = get_action(); + if (!action) { + dbg ("no action?"); + return 1; + } + + dev = get_device(); + if (!dev) { + dbg ("no device?"); + return 1; + } + + return 0; +} + @@ -0,0 +1,41 @@ +/* + * udev.h + * + * Userspace devfs + * + * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef UDEV_H +#define UDEV_H + + +#ifdef DEBUG +#include <syslog.h> + #define dbg(format, arg...) do { log_message (LOG_DEBUG, __FUNCTION__ ": " format, ## arg); } while (0) +#else + #define dbg(format, arg...) do { } while (0) +#endif + + +/* Lots of constants that should be in a config file sometime */ +#define SYSFS_ROOT "/sys" +#define MKNOD "/bin/mknod" + + +#endif + |