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Ignore whitespace Rev 2926 → Rev 2927

/branches/dynload/uspace/srv/devmap/devmap.c
0,0 → 1,750
/*
* Copyright (c) 2007 Josef Cejka
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
 
/**
* @defgroup devmap Device mapper.
* @brief HelenOS device mapper.
* @{
*/
 
/** @file
*/
 
#include <ipc/services.h>
#include <ipc/ns.h>
#include <async.h>
#include <stdio.h>
#include <errno.h>
#include <bool.h>
#include <futex.h>
#include <stdlib.h>
#include <string.h>
 
#include "devmap.h"
 
 
LIST_INITIALIZE(devices_list);
LIST_INITIALIZE(drivers_list);
 
/* order of locking:
* drivers_list_futex
* devices_list_futex
* (devmap_driver_t *)->devices_futex
* create_handle_futex
**/
 
static atomic_t devices_list_futex = FUTEX_INITIALIZER;
static atomic_t drivers_list_futex = FUTEX_INITIALIZER;
static atomic_t create_handle_futex = FUTEX_INITIALIZER;
 
 
static int devmap_create_handle(void)
{
static int last_handle = 0;
int handle;
 
/* TODO: allow reusing old handles after their unregistration
and implement some version of LRU algorithm */
/* FIXME: overflow */
futex_down(&create_handle_futex);
 
last_handle += 1;
handle = last_handle;
 
futex_up(&create_handle_futex);
 
return handle;
}
 
 
/** Initialize device mapper.
*
*
*/
static int devmap_init()
{
/* TODO: */
 
return EOK;
}
 
/** Find device with given name.
*
*/
static devmap_device_t *devmap_device_find_name(const char *name)
{
link_t *item;
devmap_device_t *device = NULL;
 
item = devices_list.next;
 
while (item != &devices_list) {
 
device = list_get_instance(item, devmap_device_t, devices);
if (0 == strcmp(device->name, name)) {
break;
}
item = item->next;
}
 
if (item == &devices_list) {
printf("DEVMAP: no device named %s.\n", name);
return NULL;
}
 
device = list_get_instance(item, devmap_device_t, devices);
return device;
}
 
/** Find device with given handle.
* @todo: use hash table
*/
static devmap_device_t *devmap_device_find_handle(int handle)
{
link_t *item;
devmap_device_t *device = NULL;
futex_down(&devices_list_futex);
 
item = (&devices_list)->next;
 
while (item != &devices_list) {
 
device = list_get_instance(item, devmap_device_t, devices);
if (device->handle == handle) {
break;
}
item = item->next;
}
 
if (item == &devices_list) {
futex_up(&devices_list_futex);
return NULL;
}
 
device = list_get_instance(item, devmap_device_t, devices);
futex_up(&devices_list_futex);
 
return device;
}
 
/**
* Unregister device and free it. It's assumed that driver's device list is
* already locked.
*/
static int devmap_device_unregister_core(devmap_device_t *device)
{
 
list_remove(&(device->devices));
list_remove(&(device->driver_devices));
 
free(device->name);
free(device);
 
 
return EOK;
}
 
/**
* Read info about new driver and add it into linked list of registered
* drivers.
*/
static void devmap_driver_register(devmap_driver_t **odriver)
{
size_t name_size;
ipc_callid_t callid;
ipc_call_t call;
devmap_driver_t *driver;
ipc_callid_t iid;
ipc_call_t icall;
 
*odriver = NULL;
iid = async_get_call(&icall);
 
if (IPC_GET_METHOD(icall) != DEVMAP_DRIVER_REGISTER) {
ipc_answer_0(iid, EREFUSED);
return;
}
 
if (NULL ==
(driver = (devmap_driver_t *)malloc(sizeof(devmap_driver_t)))) {
ipc_answer_0(iid, ENOMEM);
return;
}
 
/*
* Get driver name
*/
if (!ipc_data_write_receive(&callid, &name_size)) {
printf("Unexpected request.\n");
free(driver);
ipc_answer_0(callid, EREFUSED);
ipc_answer_0(iid, EREFUSED);
return;
}
 
if (name_size > DEVMAP_NAME_MAXLEN) {
printf("Too logn name: %u: maximum is %u.\n", name_size,
DEVMAP_NAME_MAXLEN);
free(driver);
ipc_answer_0(callid, EINVAL);
ipc_answer_0(iid, EREFUSED);
return;
}
 
/*
* Allocate buffer for device name.
*/
if (NULL == (driver->name = (char *)malloc(name_size + 1))) {
printf("Cannot allocate space for driver name.\n");
free(driver);
ipc_answer_0(callid, ENOMEM);
ipc_answer_0(iid, EREFUSED);
return;
}
 
/*
* Send confirmation to sender and get data into buffer.
*/
if (EOK != ipc_data_write_finalize(callid, driver->name, name_size)) {
printf("Cannot read driver name.\n");
free(driver->name);
free(driver);
ipc_answer_0(iid, EREFUSED);
return;
}
 
driver->name[name_size] = 0;
 
printf("Read driver name: '%s'.\n", driver->name);
 
/* Initialize futex for list of devices owned by this driver */
futex_initialize(&(driver->devices_futex), 1);
 
/*
* Initialize list of asociated devices
*/
list_initialize(&(driver->devices));
 
/*
* Create connection to the driver
*/
callid = async_get_call(&call);
 
if (IPC_M_CONNECT_TO_ME != IPC_GET_METHOD(call)) {
printf("DEVMAP: Unexpected method: %u.\n",
IPC_GET_METHOD(call));
ipc_answer_0(callid, ENOTSUP);
free(driver->name);
free(driver);
ipc_answer_0(iid, ENOTSUP);
return;
}
 
driver->phone = IPC_GET_ARG5(call);
ipc_answer_0(callid, EOK);
list_initialize(&(driver->drivers));
 
futex_down(&drivers_list_futex);
/* TODO:
* check that no driver with name equal to driver->name is registered
*/
 
/*
* Insert new driver into list of registered drivers
*/
list_append(&(driver->drivers), &drivers_list);
futex_up(&drivers_list_futex);
ipc_answer_0(iid, EOK);
printf("Driver registered.\n");
 
*odriver = driver;
return;
}
 
/** Unregister device driver, unregister all its devices and free driver
* structure.
*/
static int devmap_driver_unregister(devmap_driver_t *driver)
{
devmap_device_t *device;
 
if (NULL == driver) {
printf("Error: driver == NULL.\n");
return EEXISTS;
}
 
printf("Unregister driver '%s'.\n", driver->name);
futex_down(&drivers_list_futex);
 
ipc_hangup(driver->phone);
/* remove it from list of drivers */
list_remove(&(driver->drivers));
 
/* unregister all its devices */
futex_down(&devices_list_futex);
futex_down(&(driver->devices_futex));
 
while (!list_empty(&(driver->devices))) {
device = list_get_instance(driver->devices.next,
devmap_device_t, driver_devices);
printf("Unregister device '%s'.\n", device->name);
devmap_device_unregister_core(device);
}
futex_up(&(driver->devices_futex));
futex_up(&devices_list_futex);
futex_up(&drivers_list_futex);
 
/* free name and driver */
if (NULL != driver->name) {
free(driver->name);
}
 
free(driver);
 
printf("Driver unregistered.\n");
 
return EOK;
}
 
 
/** Register instance of device
*
*/
static void devmap_device_register(ipc_callid_t iid, ipc_call_t *icall,
devmap_driver_t *driver)
{
ipc_callid_t callid;
size_t size;
devmap_device_t *device;
 
if (NULL == driver) {
printf("Invalid driver registration.\n");
ipc_answer_0(iid, EREFUSED);
return;
}
/* Create new device entry */
if (NULL ==
(device = (devmap_device_t *)malloc(sizeof(devmap_device_t)))) {
printf("Cannot allocate new device.\n");
ipc_answer_0(iid, ENOMEM);
return;
}
/* Get device name */
if (!ipc_data_write_receive(&callid, &size)) {
free(device);
printf("Cannot read device name.\n");
ipc_answer_0(iid, EREFUSED);
return;
}
 
if (size > DEVMAP_NAME_MAXLEN) {
printf("Too long device name: %u.\n", size);
free(device);
ipc_answer_0(callid, EINVAL);
ipc_answer_0(iid, EREFUSED);
return;
}
 
/* +1 for terminating \0 */
device->name = (char *)malloc(size + 1);
 
if (NULL == device->name) {
printf("Cannot read device name.\n");
free(device);
ipc_answer_0(callid, ENOMEM);
ipc_answer_0(iid, EREFUSED);
return;
}
ipc_data_write_finalize(callid, device->name, size);
device->name[size] = 0;
 
list_initialize(&(device->devices));
list_initialize(&(device->driver_devices));
 
futex_down(&devices_list_futex);
 
/* Check that device with such name is not already registered */
if (NULL != devmap_device_find_name(device->name)) {
printf("Device '%s' already registered.\n", device->name);
futex_up(&devices_list_futex);
free(device->name);
free(device);
ipc_answer_0(iid, EEXISTS);
return;
}
 
/* Get unique device handle */
device->handle = devmap_create_handle();
 
device->driver = driver;
/* Insert device into list of all devices */
list_append(&device->devices, &devices_list);
 
/* Insert device into list of devices that belog to one driver */
futex_down(&device->driver->devices_futex);
list_append(&device->driver_devices, &device->driver->devices);
futex_up(&device->driver->devices_futex);
futex_up(&devices_list_futex);
 
printf("Device '%s' registered.\n", device->name);
ipc_answer_1(iid, EOK, device->handle);
 
return;
}
 
/**
*
*/
static int devmap_device_unregister(ipc_callid_t iid, ipc_call_t *icall,
devmap_driver_t *driver)
{
/* TODO */
 
return EOK;
}
 
/** Connect client to the device.
* Find device driver owning requested device and forward
* the message to it.
*/
static void devmap_forward(ipc_callid_t callid, ipc_call_t *call)
{
devmap_device_t *dev;
int handle;
 
/*
* Get handle from request
*/
handle = IPC_GET_ARG2(*call);
dev = devmap_device_find_handle(handle);
 
if (NULL == dev) {
printf("DEVMAP: No registered device with handle %d.\n",
handle);
ipc_answer_0(callid, ENOENT);
return;
}
 
ipc_forward_fast(callid, dev->driver->phone, (ipcarg_t)(dev->handle),
IPC_GET_ARG3(*call), 0, IPC_FF_NONE);
return;
}
 
/** Find handle for device instance identified by name.
* In answer will be send EOK and device handle in arg1 or a error
* code from errno.h.
*/
static void devmap_get_handle(ipc_callid_t iid, ipc_call_t *icall)
{
char *name = NULL;
size_t name_size;
const devmap_device_t *dev;
ipc_callid_t callid;
ipcarg_t retval;
/*
* Wait for incoming message with device name (but do not
* read the name itself until the buffer is allocated).
*/
if (!ipc_data_write_receive(&callid, &name_size)) {
ipc_answer_0(callid, EREFUSED);
ipc_answer_0(iid, EREFUSED);
return;
}
 
if (name_size > DEVMAP_NAME_MAXLEN) {
ipc_answer_0(callid, EINVAL);
ipc_answer_0(iid, EREFUSED);
return;
}
 
/*
* Allocate buffer for device name.
*/
if (NULL == (name = (char *)malloc(name_size))) {
ipc_answer_0(callid, ENOMEM);
ipc_answer_0(iid, EREFUSED);
return;
}
 
/*
* Send confirmation to sender and get data into buffer.
*/
if (EOK != (retval = ipc_data_write_finalize(callid, name,
name_size))) {
ipc_answer_0(iid, EREFUSED);
return;
}
 
/*
* Find device name in linked list of known devices.
*/
dev = devmap_device_find_name(name);
 
/*
* Device was not found.
*/
if (NULL == dev) {
printf("DEVMAP: device %s has not been registered.\n", name);
ipc_answer_0(iid, ENOENT);
return;
}
 
printf("DEVMAP: device %s has handler %d.\n", name, dev->handle);
ipc_answer_1(iid, EOK, dev->handle);
 
return;
}
 
/** Find name of device identified by id and send it to caller.
*
*/
static void devmap_get_name(ipc_callid_t iid, ipc_call_t *icall)
{
const devmap_device_t *device;
size_t name_size;
 
device = devmap_device_find_handle(IPC_GET_ARG1(*icall));
 
/*
* Device not found.
*/
if (NULL == device) {
ipc_answer_0(iid, ENOENT);
return;
}
 
ipc_answer_0(iid, EOK);
 
name_size = strlen(device->name);
 
 
/* FIXME:
we have no channel from DEVMAP to client ->
sending must be initiated by client
 
int rc = ipc_data_write_send(phone, device->name, name_size);
if (rc != EOK) {
async_wait_for(req, NULL);
return rc;
}
*/
/* TODO: send name in response */
 
return;
}
 
/** Handle connection with device driver.
*
*/
static void
devmap_connection_driver(ipc_callid_t iid, ipc_call_t *icall)
{
ipc_callid_t callid;
ipc_call_t call;
bool cont = true;
devmap_driver_t *driver = NULL;
 
ipc_answer_0(iid, EOK);
 
devmap_driver_register(&driver);
 
if (NULL == driver) {
printf("DEVMAP: driver registration failed.\n");
return;
}
while (cont) {
callid = async_get_call(&call);
 
switch (IPC_GET_METHOD(call)) {
case IPC_M_PHONE_HUNGUP:
printf("DEVMAP: connection hung up.\n");
cont = false;
continue; /* Exit thread */
case DEVMAP_DRIVER_UNREGISTER:
printf("DEVMAP: unregister driver.\n");
if (NULL == driver) {
printf("DEVMAP: driver was not registered!\n");
ipc_answer_0(callid, ENOENT);
} else {
ipc_answer_0(callid, EOK);
}
break;
case DEVMAP_DEVICE_REGISTER:
/* Register one instance of device */
devmap_device_register(callid, &call, driver);
break;
case DEVMAP_DEVICE_UNREGISTER:
/* Remove instance of device identified by handler */
devmap_device_unregister(callid, &call, driver);
break;
case DEVMAP_DEVICE_GET_HANDLE:
devmap_get_handle(callid, &call);
break;
case DEVMAP_DEVICE_GET_NAME:
devmap_get_handle(callid, &call);
break;
default:
if (!(callid & IPC_CALLID_NOTIFICATION)) {
ipc_answer_0(callid, ENOENT);
}
}
}
if (NULL != driver) {
/*
* Unregister the device driver and all its devices.
*/
devmap_driver_unregister(driver);
driver = NULL;
}
}
 
/** Handle connection with device client.
*
*/
static void
devmap_connection_client(ipc_callid_t iid, ipc_call_t *icall)
{
ipc_callid_t callid;
ipc_call_t call;
bool cont = true;
 
ipc_answer_0(iid, EOK); /* Accept connection */
 
while (cont) {
callid = async_get_call(&call);
 
switch (IPC_GET_METHOD(call)) {
case IPC_M_PHONE_HUNGUP:
printf("DEVMAP: connection hung up.\n");
cont = false;
continue; /* Exit thread */
 
case DEVMAP_DEVICE_GET_HANDLE:
devmap_get_handle(callid, &call);
 
break;
case DEVMAP_DEVICE_GET_NAME:
/* TODO */
devmap_get_name(callid, &call);
break;
default:
if (!(callid & IPC_CALLID_NOTIFICATION)) {
ipc_answer_0(callid, ENOENT);
}
}
}
}
 
/** Function for handling connections to devmap
*
*/
static void
devmap_connection(ipc_callid_t iid, ipc_call_t *icall)
{
 
printf("DEVMAP: new connection.\n");
 
/* Select interface */
switch ((ipcarg_t)(IPC_GET_ARG1(*icall))) {
case DEVMAP_DRIVER:
devmap_connection_driver(iid, icall);
break;
case DEVMAP_CLIENT:
devmap_connection_client(iid, icall);
break;
case DEVMAP_CONNECT_TO_DEVICE:
/* Connect client to selected device */
printf("DEVMAP: connect to device %d.\n",
IPC_GET_ARG2(*icall));
devmap_forward(iid, icall);
break;
default:
ipc_answer_0(iid, ENOENT); /* No such interface */
printf("DEVMAP: Unknown interface %u.\n",
(ipcarg_t)(IPC_GET_ARG1(*icall)));
}
 
/* Cleanup */
printf("DEVMAP: connection closed.\n");
return;
}
 
/**
*
*/
int main(int argc, char *argv[])
{
ipcarg_t phonead;
 
printf("DEVMAP: HelenOS device mapper.\n");
 
if (devmap_init() != 0) {
printf("Error while initializing DEVMAP service.\n");
return -1;
}
 
/* Set a handler of incomming connections */
async_set_client_connection(devmap_connection);
 
/* Register device mapper at naming service */
if (ipc_connect_to_me(PHONE_NS, SERVICE_DEVMAP, 0, 0, &phonead) != 0)
return -1;
async_manager();
/* Never reached */
return 0;
}
 
/**
* @}
*/
 
/branches/dynload/uspace/srv/devmap/devmap.h
0,0 → 1,99
/*
* Copyright (c) 2007 Josef Cejka
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
 
/** @addtogroup devmap
* @{
*/
 
#ifndef DEVMAP_DEVMAP_H_
#define DEVMAP_DEVMAP_H_
 
#include <ipc/ipc.h>
#include <libadt/list.h>
 
#define DEVMAP_NAME_MAXLEN 512
 
typedef enum {
DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD,
DEVMAP_DRIVER_UNREGISTER,
DEVMAP_DEVICE_REGISTER,
DEVMAP_DEVICE_UNREGISTER,
DEVMAP_DEVICE_GET_NAME,
DEVMAP_DEVICE_GET_HANDLE
} devmap_request_t;
 
/** Representation of device driver.
* Each driver is responsible for a set of devices.
*/
typedef struct {
/** Pointers to previous and next drivers in linked list */
link_t drivers;
/** Pointer to the linked list of devices controlled by
* this driver */
link_t devices;
/** Phone asociated with this driver */
ipcarg_t phone;
/** Device driver name */
char *name;
/** Futex for list of devices owned by this driver */
atomic_t devices_futex;
} devmap_driver_t;
 
/** Info about registered device
*
*/
typedef struct {
/** Pointer to the previous and next device in the list of all devices */
link_t devices;
/** Pointer to the previous and next device in the list of devices
owned by one driver */
link_t driver_devices;
/** Unique device identifier */
int handle;
/** Device name */
char *name;
/** Device driver handling this device */
devmap_driver_t *driver;
} devmap_device_t;
 
/** Interface provided by devmap.
* Every process that connects to devmap must ask one of following
* interfaces otherwise connection will be refused.
*/
typedef enum {
/** Connect as device driver */
DEVMAP_DRIVER = 1,
/** Connect as client */
DEVMAP_CLIENT,
/** Create new connection to instance of device that
* is specified by second argument of call. */
DEVMAP_CONNECT_TO_DEVICE
} devmap_interface_t;
 
#endif
 
/branches/dynload/uspace/srv/devmap/Makefile
0,0 → 1,76
#
# Copyright (c) 2005 Martin Decky
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# - Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# - Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# - The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
 
## Setup toolchain
#
 
LIBC_PREFIX = ../../lib/libc
SOFTINT_PREFIX = ../../lib/softint
include $(LIBC_PREFIX)/Makefile.toolchain
 
CFLAGS += -I../libipc/include
 
LIBS = $(LIBC_PREFIX)/libc.a
 
## Sources
#
 
OUTPUT = devmap
SOURCES = \
devmap.c
 
CFLAGS += -D$(ARCH)
 
OBJECTS := $(addsuffix .o,$(basename $(SOURCES)))
 
.PHONY: all clean depend disasm
 
all: $(OUTPUT) disasm
 
-include Makefile.depend
 
clean:
-rm -f $(OUTPUT) $(OUTPUT).map $(OUTPUT).disasm Makefile.depend
 
depend:
$(CC) $(DEFS) $(CFLAGS) -M $(SOURCES) > Makefile.depend
 
$(OUTPUT): $(OBJECTS) $(LIBS)
$(LD) -T $(LIBC_PREFIX)/arch/$(ARCH)/_link.ld $(OBJECTS) $(LIBS) $(LFLAGS) -o $@ -Map $(OUTPUT).map
 
disasm:
$(OBJDUMP) -d $(OUTPUT) >$(OUTPUT).disasm
 
%.o: %.S
$(CC) $(DEFS) $(AFLAGS) $(CFLAGS) -D__ASM__ -c $< -o $@
 
%.o: %.s
$(AS) $(AFLAGS) $< -o $@
 
%.o: %.c
$(CC) $(DEFS) $(CFLAGS) -c $< -o $@