Remove path from gdb.python/py-pp-integral.exp "source" test.

gdb/testsuite/ChangeLog:

	* gdb.python/py-pp-integral.exp: Remove path from "source" test.
Remove path from gdb.ada/pp-rec-component.exp "source" test

gdb/testsuite/ChangeLog:

	* gdb.ada/pp-rec-component.exp: Remove path from "source" test.
Don't adjust LOAD segment to match GNU_RELRO segment

Instead, fix Jakub's original code setting up the PR_GNU_RELRO header
from the PT_LOAD header.

	PR ld/14207
	PR ld/16322
	PR binutils/16323
bfd/
	* elf.c (assign_file_positions_for_load_sections): Revert last change.
	(assign_file_positions_for_non_load_sections): When setting up
	PT_GNU_RELRO header, don't require a corresponding PT_LOAD
	header that completely covers the relro region.
ld/
	* ldlang.c (lang_size_sections): Remove unneeded RELRO base
	adjust.  Tidy comments.
	* ld.texinfo (DATA_SEGMENT_RELRO_END): Correct description.
ld/testsuite/
	* ld-x86-64/pr14207.d: Adjust
Since upstream gcc has recently increased the function alignment on
S390, the dw2-dir-file-name test case fails in the first
gdb_continue_to_breakpoint.  Indeed, the breakpoint is now placed into
the alignment gap *before* the actual function.

This happens because the test case declares the respective "*_start"
symbol as a "loose" label before the function definition, and the
compiler inserts the alignment between that label and the function
itself.

The "*_start" symbols were only necessary because FUNC made the
function static.  The fix makes the functions extern instead, thus
making the "*_start" labels unnecessary.

testsuite/
2014-01-10  Andreas Arnez  <arnez@linux.vnet.ibm.com>
	    Pedro Alves <palves@redhat.com>

	* gdb.dwarf2/dw2-dir-file-name.c (FUNC): Remove "*_start" symbol.
	Make "name" extern.
	* gdb.dwarf2/dw2-dir-file-name.exp (out_cu, out_line): Replace
	references to ${name}_start by references to ${name}.
[doc] Mention that "set environment" affects the shell too.

gdb/doc/
2014-01-10  Pedro Alves  <palves@redhat.com>

	* gdb.texinfo (Your Program's Environment) <set environment>:
	Mention the shell, and point at 'set exec-wrapper'.
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