I somehow managed to overlook the x86/x86_64 ELF ABI requirement that
the first entry in the .got.plt section hold the unrelocated address of
the .dynamic section.  I got away with it because the only program which
cares is the dynamic linker itself.  This patch fixes the problem.
Committed to mainline.

Ian


2011-07-15  Ian Lance Taylor  <iant@google.com>

	* i386.cc (class Output_data_plt_i386): Add layout_ field.
	(Output_data_plt_i386::Output_data_plt_i386): Initialize layout_.
	(Output_data_plt_i386::do_write): Write address of .dynamic
	section to first entry in .got.plt section.
	* x86_64.cc (class Output_data_plt_x86_64): Add layout_ field.
	(Output_data_plt_x86_64::Output_data_plt_x86_64) [both versions]:
	Initialize layout_.
	(Output_data_plt_x86_64::do_write): Write address of .dynamic
	section to first entry in .got.plt section.
	* layout.h (Layout::dynamic_section): New function.