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core_kernel_data(): Fix architectures that do not define _sdata

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Some architectures such as Alpha do not define _sdata but _data:

  kernel/built-in.o: In function `core_kernel_data':
  kernel/extable.c:77: undefined reference to `_sdata'

So expand the scope of the data range to the text addresses too,
this might be more correct anyway because this way we can
cover readonly variables as well.

Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/n/tip-i878c8a0e0g0ep4v7i6vxnhz@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2011-05-20 01:22:14 +02:00
parent 29510ec3b6
commit c5fc472171
1 changed files with 1 additions and 1 deletions
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2
kernel/extable.c
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@ -74,7 +74,7 @@ int core_kernel_text(unsigned long addr)
int core_kernel_data(unsigned long addr)
{
if (addr >= (unsigned long)_sdata &&
if (addr >= (unsigned long)_stext &&
addr < (unsigned long)_edata)
return 1;
return 0;