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    Subject2.5.24 doesn't compile on Alpha
    After applying this diff to get past the most obvious errors:

    [yes, it applies clean against 2.5.24 still]

    diff -Br -b -U 3 -N linux-2.5.20/drivers/char/rtc.c linux-2.5.20-jwk/drivers/char/rtc.c
    --- linux-2.5.20/drivers/char/rtc.c Sat Jun 8 15:44:46 2002
    +++ linux-2.5.20-jwk/drivers/char/rtc.c Sun Jun 9 08:28:23 2002
    @@ -72,6 +72,7 @@
    #include <linux/sysctl.h>

    #include <asm/io.h>
    +#include <asm/irq.h>
    #include <asm/uaccess.h>
    #include <asm/system.h>

    diff -Br -b -U 3 -N linux-2.5.20/include/asm-alpha/bitops.h linux-2.5.20-jwk/include/asm-alpha/bitops.h
    --- linux-2.5.20/include/asm-alpha/bitops.h Wed Apr 24 09:15:19 2002
    +++ linux-2.5.20-jwk/include/asm-alpha/bitops.h Sun Jun 9 08:51:55 2002
    @@ -451,6 +451,12 @@

    + * fls: find last bit set.
    + */
    +#define fls(x) generic_fls(x)
    * The optimizer actually does good code for this case.
    #define find_first_zero_bit(addr, size) \
    diff -Br -b -U 3 -N linux-2.5.20/include/asm-alpha/irq.h linux-2.5.20-jwk/include/asm-alpha/irq.h
    --- linux-2.5.20/include/asm-alpha/irq.h Wed Apr 24 09:15:18 2002
    +++ linux-2.5.20-jwk/include/asm-alpha/irq.h Sun Jun 9 08:51:56 2002
    @@ -37,6 +37,7 @@
    defined(CONFIG_ALPHA_RX164) || \
    # define NR_IRQS 48
    +# define RTC_IRQ 8

    #elif defined(CONFIG_ALPHA_SABLE) || \
    diff -Br -b -U 3 -N linux-2.5.20/include/asm-alpha/page.h linux-2.5.20-jwk/include/asm-alpha/page.h
    --- linux-2.5.20/include/asm-alpha/page.h Wed Apr 24 09:15:21 2002
    +++ linux-2.5.20-jwk/include/asm-alpha/page.h Sun Jun 9 08:51:55 2002
    @@ -15,10 +15,10 @@

    extern void clear_page(void *page);
    -#define clear_user_page(page, vaddr) clear_page(page)
    +#define clear_user_page(page, vaddr, pg) clear_page(page)

    extern void copy_page(void * _to, void * _from);
    -#define copy_user_page(to, from, vaddr) copy_page(to, from)
    +#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)


    I still get errors:

    alpha:/usr/src/linux-2.5.24# make boot
    make[1]: Entering directory `/usr/src/linux-2.5.24/scripts'
    make[1]: Leaving directory `/usr/src/linux-2.5.24/scripts'
    make[1]: Entering directory `/usr/src/linux-2.5.24/arch/alpha/kernel'
    gcc -Wp,-MD,./.asm-offsets.s.d -D__KERNEL__ -I/usr/src/linux-2.5.24/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-fra
    me-pointer -fno-strict-aliasing -fno-common -pipe -mno-fp-regs -ffixed-8 -mcpu=ev56 -Wa,-mev6 -nostdinc -iwithprefix include -DKBU
    ILD_BASENAME=asm_offsets -S -o asm-offsets.s asm-offsets.c
    make[1]: Leaving directory `/usr/src/linux-2.5.24/arch/alpha/kernel'
    Generating include/asm-alpha/asm_offsets.h (unchanged)
    Starting the build. KBUILD_BUILTIN=1 KBUILD_MODULES=
    make[1]: Entering directory `/usr/src/linux-2.5.24/init'
    gcc -Wp,-MD,./.main.o.d -D__KERNEL__ -I/usr/src/linux-2.5.24/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-poin
    ter -fno-strict-aliasing -fno-common -pipe -mno-fp-regs -ffixed-8 -mcpu=ev56 -Wa,-mev6 -nostdinc -iwithprefix include -DKBUILD_BAS
    ENAME=main -c -o main.o main.c
    Generating /usr/src/linux-2.5.24/include/linux/compile.h (updated)
    gcc -Wp,-MD,./.version.o.d -D__KERNEL__ -I/usr/src/linux-2.5.24/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-p
    ointer -fno-strict-aliasing -fno-common -pipe -mno-fp-regs -ffixed-8 -mcpu=ev56 -Wa,-mev6 -nostdinc -iwithprefix include -DKBUILD_
    BASENAME=version -c -o version.o version.c
    gcc -Wp,-MD,./.do_mounts.o.d -D__KERNEL__ -I/usr/src/linux-2.5.24/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame
    -pointer -fno-strict-aliasing -fno-common -pipe -mno-fp-regs -ffixed-8 -mcpu=ev56 -Wa,-mev6 -nostdinc -iwithprefix include -DKBUIL
    D_BASENAME=do_mounts -c -o do_mounts.o do_mounts.c
    ld -r -o init.o main.o version.o do_mounts.o
    make[1]: Leaving directory `/usr/src/linux-2.5.24/init'
    make[1]: Entering directory `/usr/src/linux-2.5.24/kernel'
    gcc -Wp,-MD,./.sched.o.d -D__KERNEL__ -I/usr/src/linux-2.5.24/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-poi
    nter -fno-strict-aliasing -fno-common -pipe -mno-fp-regs -ffixed-8 -mcpu=ev56 -Wa,-mev6 -nostdinc -iwithprefix include -fno-omit-f
    rame-pointer -DKBUILD_BASENAME=sched -c -o sched.o sched.c
    sched.c:469: macro `switch_to' used with too many (3) args
    In file included from sched.c:25:
    /usr/src/linux-2.5.24/include/asm/mmu_context.h: In function `init_new_context':
    /usr/src/linux-2.5.24/include/asm/mmu_context.h:230: `smp_num_cpus' undeclared (first use in this function)
    /usr/src/linux-2.5.24/include/asm/mmu_context.h:230: (Each undeclared identifier is reported only once
    /usr/src/linux-2.5.24/include/asm/mmu_context.h:230: for each function it appears in.)
    /usr/src/linux-2.5.24/include/asm/mmu_context.h:231: warning: implicit declaration of function `cpu_logical_map'
    sched.c: In function `schedule':
    sched.c:819: warning: implicit declaration of function `prepare_arch_schedule'
    sched.c:876: warning: implicit declaration of function `prepare_arch_switch'
    sched.c:880: warning: implicit declaration of function `finish_arch_switch'
    sched.c:883: warning: implicit declaration of function `finish_arch_schedule'
    make[1]: *** [sched.o] Error 1
    make[1]: Leaving directory `/usr/src/linux-2.5.24/kernel'
    make: *** [kernel] Error 2

    I know I can fix the smp_num_cpus thing, but the prepare_arch_switch()
    etc. things are another matter. Every now and again I see a post to lkml
    for the Alpha, which suggest some people succeed in compiling it. Any

    I'm a mean green mother from outer space.
    Audrey II, The Little Shop of Horrors
    Debian GNU/Linux 2.4.19p10 on Alpha 990 bogomips load:0.66 0.17 0.36
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