[binutils-gdb] [FT32] gdb: Correctly interpret function prologs

[sergiodj+buildbot@redhat.com]

*** TEST RESULTS FOR COMMIT ae4e25019d53d38b2ad50475c80fa99ecab94c5c ***

Author: jamesbowman <jamesb@excamera.com>
Branch: master
Commit: ae4e25019d53d38b2ad50475c80fa99ecab94c5c

[FT32] gdb: Correctly interpret function prologs

The stack unwinder did not understand the function prologs
generated by gcc with -Os. Add code to recognize and interpret the
prolog calls.

[gdb]

2015-10-02  James Bowman  <james.bowman@ftdichip.com>

	* ft32-tdep.c (ft32_analyze_prologue): Add function prolog
	subroutine handling.