[AArch64] Documentation fix for -fpic

gcc/
	* doc/invoke.texi (-fpic): Add the AArch64 limit.
	(-fPIC): Add AArch64.

From-SVN: r230819

gcc/ChangeLog

+2015-11-24  Szabolcs Nagy  <szabolcs.nagy@arm.com>
+
+	* doc/invoke.texi (-fpic): Add the AArch64 limit.
+	(-fPIC): Add AArch64.
+
 2015-11-24  Tom de Vries  <tom@codesourcery.com>
 
 	* tree-ssa-loop-im.c (tree_ssa_lim): Make static.

gcc/doc/invoke.texi

@@ -24332,7 +24332,7 @@ loader is not part of GCC; it is part of the operating system).  If
 the GOT size for the linked executable exceeds a machine-specific
 maximum size, you get an error message from the linker indicating that
 @option{-fpic} does not work; in that case, recompile with @option{-fPIC}
-instead.  (These maximums are 8k on the SPARC and 32k
+instead.  (These maximums are 8k on the SPARC, 28k on AArch64 and 32k
 on the m68k and RS/6000.  The x86 has no such limit.)
 
 Position-independent code requires special support, and therefore works
@@ -24347,7 +24347,7 @@ are defined to 1.
 @opindex fPIC
 If supported for the target machine, emit position-independent code,
 suitable for dynamic linking and avoiding any limit on the size of the
-global offset table.  This option makes a difference on the m68k,
+global offset table.  This option makes a difference on AArch64, m68k,
 PowerPC and SPARC@.
 
 Position-independent code requires special support, and therefore works