[asan] Protection of globals

[Diego Novillo]

On 2012-10-17 07:11 , Jakub Jelinek wrote:

> 2012-10-17  Jakub Jelinek  <jakub@redhat.com>
>
> 	* varasm.c: Include asan.h.
> 	(assemble_noswitch_variable): Grow size by asan_red_zone_size
> 	if decl is asan protected.
> 	(place_block_symbol): Likewise.
> 	(assemble_variable): If decl is asan protected, increase
> 	DECL_ALIGN if needed, and for decls emitted using
> 	assemble_variable_contents append padding zeros after it.
> 	* Makefile.in (varasm.o): Depend on asan.h.
> 	* asan.c: Include output.h.
> 	(asan_pp, asan_pp_initialized): New variables.
> 	(asan_pp_initialize, asan_pp_string): New functions.
> 	(asan_emit_stack_protection): Use asan_pp{,_initialized}
> 	instead of local pp{,_initialized} vars, use asan_pp_initialize
> 	and asan_pp_string helpers.
> 	(asan_needs_local_alias, asan_protect_global,
> 	asan_global_struct, asan_add_global): New functions.
> 	(asan_finish_file): Protect global vars that can be protected.
> 	* asan.h (asan_protect_global): New prototype.
> 	(asan_red_zone_size): New inline function.

This is OK.


Thanks.  Diego.