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alpha: unbreak OSF/1 (a.out) binaries 

OSF/1 brk(2) was broken by following one-liner in sys_brk()
(commit 4cc6028d40):

-	if (brk < mm->end_code)
+	if (brk < mm->start_brk)
		goto out;

The problem is that osf_set_program_attributes()
does update mm->end_code, but not mm->start_brk,
which still contains inappropriate value left from
binary loader, so brk() always fails.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ivan Kokshaysky 2008-04-24 16:54:50 +04:00 committed by Linus Torvalds
parent 72cff12397
commit 2444e56b0c
1 changed files with 1 additions and 0 deletions
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1
arch/alpha/kernel/osf_sys.c
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@ -75,6 +75,7 @@ osf_set_program_attributes(unsigned long text_start, unsigned long text_len,
lock_kernel(); lock_kernel();
mm = current->mm; mm = current->mm;
mm->end_code = bss_start + bss_len; mm->end_code = bss_start + bss_len;
mm->start_brk = bss_start + bss_len;
mm->brk = bss_start + bss_len; mm->brk = bss_start + bss_len;
#if 0 #if 0
printk("set_program_attributes(%lx %lx %lx %lx)\n", printk("set_program_attributes(%lx %lx %lx %lx)\n",