* check/lightning.c, include/lightning.h: Add the new jit_va_push
interface. That should be called when passing a va_list to a C
function. This is required because on Alpha a va_list is passed
by value, and lightning does not know about data types, so, cannot
understand it is pushing a va_list as argument.
* lib/jit_names.c, lib/lightning.c: Minor changes for the new
jit_code_va_push.
* check/cva_list.c: Update only test case using jit_va_push, to
pass a va_list to a C function.
doc/body.texi: Better documentation of the varargs interface.
* jit_alpha.c, jit_alpha-cpu.c: Update to properly push a
C va_list and correctly calculate varargs offset.
* lib/jit_aarch64-sz.c, lib/jit_aarch64.c, lib/jit_alpha-sz.c,
lib/jit_arm-sz.c, lib/jit_arm.c, lib/jit_hppa-sz.c, lib/jit_hppa.c,
lib/jit_ia64-sz.c, lib/jit_ia64.c, lib/jit_mips-sz.c, lib/jit_mips.c,
lib/jit_ppc-sz.c, lib/jit_ppc.c, lib/jit_s390-sz.c, lib/jit_s390.c,
lib/jit_sparc-sz.c, lib/jit_sparc.c, lib/jit_x86-sz.c, lib/jit_x86.c:
Update for the new jit_va_push interface.
* check/cva_list.c: New file implementing a test to ensure
the value returned by jit_va_start is a valid C va_list.
* check/va_list.ok: New simple helper file, as now the
va_list.tst test is enabled.
* check/va_list.tst: Rewritten for an extensive variadic
jit functions test.
* check/Makefile.am: Update for the new tests.
* lib/jit_arm-cpu.c, lib/jit_arm-swf.c, lib/jit_arm-vfp.c,
lib/jit_arm.c: Correct broken software float in a previous
commit. Note that the hard float abi implementation is known
broken at this time, for special cases involving variadic
functions, and should be corrected next.
lib/jit_x86-cpu.c, lib/jit_x86-sz.c, lib/jit_x86.c: Correct
the jit_va_list_t semantics to match C va_list.
