Commit 16f035d9 authored by Helge Deller's avatar Helge Deller
Browse files

sections: Fix __is_kernel() to include init ranges 



With CONFIG_KALLSYMS_ALL=y, the function is_ksym_addr() is used to
determine if a symbol is from inside the kernel range. For that the
given symbol address is checked if it's inside the _stext to _end range.

Although this is correct, some architectures (e.g. parisc) may have the
init area before the _stext address and as such the check in
is_ksym_addr() fails.  By extending the range check to include the init
section, __is_kernel() will now detect symbols in this range as well.

This fixes an issue on parisc where addresses of kernel functions in
init sections aren't resolved to their symbol names.

Signed-off-by: default avatarHelge Deller <deller@gmx.de>
parent e486288d

include/asm-generic/sections.h

+7 −3
Original line number Diff line number Diff line
@@ -193,12 +193,16 @@ static inline bool __is_kernel_text(unsigned long addr) 
 * @addr: address to check

 *

 * Returns: true if the address is located in the kernel range, false otherwise.

 * Note: an internal helper, only check the range of _stext to _end.

 * Note: an internal helper, check the range of _stext to _end,

 *       and range from __init_begin to __init_end, which can be outside

 *       of the _stext to _end range.

 */

static inline bool __is_kernel(unsigned long addr)

{

	return addr >= (unsigned long)_stext &&

	       addr < (unsigned long)_end;

	return ((addr >= (unsigned long)_stext &&

	         addr < (unsigned long)_end) ||

		(addr >= (unsigned long)__init_begin &&

		 addr < (unsigned long)__init_end));

}



#endif /* _ASM_GENERIC_SECTIONS_H_ */