On Thu, Jun 23, 2016 at 4:00 PM, Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx> wrote:
> 2016-06-23 16:21 GMT+03:00 Dmitry Vyukov <dvyukov@xxxxxxxxxx>:
>>>
>>> gcc version 6.1.1 20160513
>>>
>>> .dtors contains asan destructors for global vars:
>>>
>
> Something has changed very recently, because my gcc-6.1.0 2016-04-27
> generate .fini_array.
> So if this is not a bug in gcc, and such change done intentionally, we
> can just discard .dtors.
> In case this is a bug, and it will be fixed in gcc release (6.2.0) we
> can ignore it.
Okay, turns out we configure our compilers with
--disable-initfini-array for some reason. This switches it to usage of
.ctors/.dtors.
What about?
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -537,15 +537,19 @@
#define INIT_TEXT \
*(.init.text) \
+ *(.text.startup) \
MEM_DISCARD(init.text)
#define EXIT_DATA \
*(.exit.data) \
+ *(.fini_array) \
+ *(.dtors) \
MEM_DISCARD(exit.data) \
MEM_DISCARD(exit.rodata)
#define EXIT_TEXT \
*(.exit.text) \
+ *(.text.exit) \
MEM_DISCARD(exit.text)
#define EXIT_CALL \
--
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