[PATCH v2 01/13] ppc/boot: Run constructors on boot

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

PPC collects constructors, but doesn't run them yet.  Do so.

They'll shortly be used to confirm correct behaviour of the bitops primitives.

Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
CC: Wei Liu <wl@xxxxxxx>
CC: Stefano Stabellini <sstabellini@xxxxxxxxxx>
CC: Julien Grall <julien@xxxxxxx>
CC: Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
CC: Bertrand Marquis <bertrand.marquis@xxxxxxx>
CC: Michal Orzel <michal.orzel@xxxxxxx>
CC: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
CC: Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>
CC: consulting@xxxxxxxxxxx <consulting@xxxxxxxxxxx>
CC: Simone Ballarin <simone.ballarin@xxxxxxxxxxx>
CC: Federico Serafini <federico.serafini@xxxxxxxxxxx>
CC: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>

CI: https://gitlab.com/xen-project/people/andyhhp/xen/-/jobs/6931084695

v2:
 * New

RISC-V collects them too, but can't call init_constructors() until lib/ctors.c
is included in the build.

Constructors is the only way to get these tests working on PPC/RISC-V as
neither suvivie boot with initcalls() active.  Then again, initcalls() are
just a not-invented-here constructor, and we'd probably do well to move them
over..
---
 xen/arch/ppc/setup.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xen/arch/ppc/setup.c b/xen/arch/ppc/setup.c
index 101bdd8bb648..7fe06aa4bfb0 100644
--- a/xen/arch/ppc/setup.c
+++ b/xen/arch/ppc/setup.c
@@ -39,6 +39,8 @@ void __init noreturn start_xen(unsigned long r3, unsigned 
long r4,
 
     setup_initial_pagetables();
 
+    init_constructors();
+
     early_printk("Hello, ppc64le!\n");
 
     for ( ; ; )
-- 
2.30.2