Remove dependence on <linux/spinlock.h>
Use local definitions for the ioctl codes needed to access the RTC. Note : not tested. Some architectures not handled yet.
This commit is contained in:
Richard Curnow
Richard P. Curnow
parent
6ff561dd23
commit
29953d6ddb
4 changed files with 83 additions and 36 deletions
6
configure
vendored
6
configure
vendored
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@ -241,12 +241,6 @@ case $SYSTEM in
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EXTRA_OBJECTS="sys_linux.o wrap_adjtimex.o rtc_linux.o"
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SYSDEFS="-DLINUX"
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echo "Configuring for " $SYSTEM
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if [ -r /usr/include/linux/spinlock.h ]; then
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SYSDEFS="$SYSDEFS -DHAS_SPINLOCK_H"
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echo "The system has <spinlock.h>, using that"
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else
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echo "The system does not have <spinlock.h>, using private definition for spinlock_t"
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fi
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if [ "${MACHINE}" = "alpha" ]; then
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echo "Enabling -mieee"
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# FIXME: Should really test for GCC
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3
faq.txt
3
faq.txt
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@ -154,6 +154,9 @@ There have also been reports that just replacing the file
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/usr/src/linux/spinlock.h by the equivalent file from a vanilla kernel source
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tree is sufficient to fix the problem.
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Note : from version 1.21 onwards, this problem no longer exists. The kernel
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header files are no longer included.
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S: Selection of NTP servers
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Q: I have several computers on a LAN. Should I make one the master, or make them all clients of an external server?
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I think the best configuration is to make one computer the master, with the
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63
io_linux.h
Normal file
63
io_linux.h
Normal file
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@ -0,0 +1,63 @@
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/* Taken from <asm-$foo/ioctl.h> in the Linux kernel sources.
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* The ioctl.h file is pretty similar from one architecture to another.
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* */
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#ifndef IO_LINUX_H
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#define IO_LINUX_H
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/* Hmm. These constants vary a bit between systems. */
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/* (__sh__ includes both sh and sh64) */
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#if defined(__i386__) || defined(__sh__)
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#define _IOC_NRBITS 8
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#define _IOC_TYPEBITS 8
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#define _IOC_SIZEBITS 14
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#define _IOC_DIRBITS 2
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#define _IOC_NONE 0U
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#define _IOC_WRITE 1U
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#define _IOC_READ 2U
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#elif defined(__alpha__) || defined(__sparc__)
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#define _IOC_NRBITS 8
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#define _IOC_TYPEBITS 8
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#define _IOC_SIZEBITS 13
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#define _IOC_DIRBITS 2
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#define _IOC_NONE 1U
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#define _IOC_READ 2U
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#define _IOC_WRITE 4U
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#else
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#error "I don't know the values of the _IOC_* constants for your architecture"
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#endif
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#define _IOC_NRMASK ((1 << _IOC_NRBITS)-1)
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#define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS)-1)
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#define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS)-1)
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#define _IOC_DIRMASK ((1 << _IOC_DIRBITS)-1)
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#define _IOC_NRSHIFT 0
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#define _IOC_TYPESHIFT (_IOC_NRSHIFT+_IOC_NRBITS)
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#define _IOC_SIZESHIFT (_IOC_TYPESHIFT+_IOC_TYPEBITS)
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#define _IOC_DIRSHIFT (_IOC_SIZESHIFT+_IOC_SIZEBITS)
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#define _IOC(dir,type,nr,size) \
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(((dir) << _IOC_DIRSHIFT) | \
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((type) << _IOC_TYPESHIFT) | \
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((nr) << _IOC_NRSHIFT) | \
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((size) << _IOC_SIZESHIFT))
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/* used to create numbers */
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#define _IO(type,nr) _IOC(_IOC_NONE,(type),(nr),0)
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#define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),sizeof(size))
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#define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),sizeof(size))
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#define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size))
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#define RTC_UIE_ON _IO('p', 0x03) /* Update int. enable on */
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#define RTC_UIE_OFF _IO('p', 0x04) /* ... off */
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#define RTC_RD_TIME _IOR('p', 0x09, struct rtc_time) /* Read RTC time */
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#define RTC_SET_TIME _IOW('p', 0x0a, struct rtc_time) /* Set RTC time */
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/* From mc146818.h */
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#define RTC_UIE 0x10 /* update-finished interrupt enable */
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#endif
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39
rtc_linux.c
39
rtc_linux.c
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@ -43,32 +43,6 @@
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#include <sys/time.h>
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#include <sys/types.h>
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#ifdef HAS_SPINLOCK_H
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#include <linux/spinlock.h>
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#else
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/* Include dummy definition of spinlock_t to cope with earlier kernels. */
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typedef int spinlock_t;
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#endif
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/* This is a complete hack since the alpha sys/io.h needs these types
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* but does not arrange them to be defined. This is almost certainly
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* not how one should do these things. -- broonie
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*/
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#include <linux/types.h>
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#ifdef __alpha__
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typedef __u8 u8;
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typedef __u16 u16;
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typedef __u32 u32;
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typedef __u64 u64;
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#endif
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#if defined(__i386__) /* || defined(__sparc__) */
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#include <linux/mc146818rtc.h>
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#else
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#include <linux/rtc.h>
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#define RTC_UIE 0x10 /* update-finished interrupt enable */
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#endif
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#include <sys/ioctl.h>
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#include <fcntl.h>
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#include <unistd.h>
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@ -84,10 +58,23 @@ typedef __u64 u64;
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#include "regress.h"
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#include "rtc.h"
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#include "rtc_linux.h"
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#include "io_linux.h"
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#include "conf.h"
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#include "memory.h"
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#include "mkdirpp.h"
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struct rtc_time {
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int tm_sec;
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int tm_min;
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int tm_hour;
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int tm_mday;
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int tm_mon;
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int tm_year;
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int tm_wday;
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int tm_yday;
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int tm_isdst;
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};
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/* ================================================== */
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/* Forward prototypes */
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