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SubjectRe: Both 2.4.4aa2 and 2.4.4aa3 fail to compile
On Wed, May 02, 2001 at 10:24:18AM +0900, Maintaniner on duty wrote:
>
> With gcc-2.95.2 provided by SuSE-7.0 for Alpha on UP2000 SMP with 2GB memory
>
>
> gcc -D__KERNEL__ -I/usr/src/linux/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -pipe -mno-fp-regs -ffixed-8 -mcpu=ev6 -Wa,-mev6 -c -o extable.o extable.c
> extable.c: In function `search_exception_table_without_gp':
> extable.c:54: `modlist_lock' undeclared (first use in this function)
> extable.c:54: (Each undeclared identifier is reported only once
> extable.c:54: for each function it appears in.)
> make[2]: *** [extable.o] Error 1
> make[2]: Leaving directory `/usr/src/linux/arch/alpha/mm'
> make[1]: *** [first_rule] Error 2
> make[1]: Leaving directory `/usr/src/linux/arch/alpha/mm'
> make: *** [_dir_arch/alpha/mm] Error 2

Sorry for that, please try this incremental patch (also for Alan) [it
didn't triggered because you know I don't use modules on my 2G alpha]:

--- 2.4.4aa3/arch/alpha/mm/extable.c.~1~ Tue May 1 13:30:02 2001
+++ 2.4.4aa3/arch/alpha/mm/extable.c Wed May 2 21:40:49 2001
@@ -46,6 +46,7 @@
ret = search_one_table(__start___ex_table, __stop___ex_table - 1,
addr - gp);
#else
+ extern spinlock_t modlist_lock;
unsigned long flags;
/* The kernel is the last "module" -- no need to treat it special. */
struct module *mp;
@@ -76,15 +77,23 @@
addr - exc_gp);
if (ret) return ret;
#else
+ extern spinlock_t modlist_lock;
+ unsigned long flags;
/* The kernel is the last "module" -- no need to treat it special. */
struct module *mp;
+
+ ret = 0;
+ spin_lock_irqsave(&modlist_lock, flags);
for (mp = module_list; mp ; mp = mp->next) {
- if (!mp->ex_table_start)
+ if (!mp->ex_table_start || !(mp->flags&(MOD_RUNNING|MOD_INITIALIZING)))
continue;
ret = search_one_table(mp->ex_table_start,
mp->ex_table_end - 1, addr - exc_gp);
- if (ret) return ret;
+ if (ret)
+ break;
}
+ spin_unlock_irqrestore(&modlist_lock, flags);
+ if (ret) return ret;
#endif

/*
Also note that none 2.4 kernel will ever run stable on a alpha if
compiled with 2.95.*, you _must_ use egcs 1.1.2 or the very latest 2.96
with two houndred patches if you want to have a chance to run a 2.4
kernel stable on an alpha (NOTE: only on the alpha, x86 and other
architectures are a completly different matter). So I have to reject any
(runtime) bugreport of 2.4 alpha kernels compiled with any 2.95.*, sorry.

Andrea
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