[ARM/FDPIC v6 08/24] [ARM] FDPIC: Enforce local/global binding for function descriptors

[ARM/FDPIC v6 08/24] [ARM] FDPIC: Enforce local/global binding for function descriptors

Use local binding rules to decide whether we can use GOTOFFFUNCDESC to
compute the function address.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>
	Mickaël Guêné <mickael.guene@st.com>

	gcc/
	* config/arm/arm.c (arm_fdpic_local_funcdesc_p): New function.
	(legitimize_pic_address): Enforce binding rules on function
	pointers in FDPIC mode.
	(arm_assemble_integer): Likewise.

Co-Authored-By: Mickaël Guêné <mickael.guene@st.com>
From-SVN: r275570