build: Stop linking morestack.S to rt

brson · brson · commit e075412a9205 · 2011-11-28T16:37:29.000-08:00
__morestack has to be linked statically. The odd calling convention on x86_64
results in the arguments to __morestack (r10 &amp; r11) being clobbered by the
dynamic linker. gcc links all the __morestack functions statically.
diff --git a/mk/rt.mk b/mk/rt.mk
@@ -67,7 +67,6 @@ RUNTIME_CS_$(1) := \
 
 RUNTIME_S_$(1) := rt/arch/$$(HOST_$(1))/_context.S \
                   rt/arch/$$(HOST_$(1))/ccall.S \
-                  rt/arch/$$(HOST_$(1))/morestack.S \
                   rt/arch/$$(HOST_$(1))/record_sp.S
 
 RUNTIME_HDR_$(1) := rt/globals.h \
diff --git a/src/rt/rustrt.def.in b/src/rt/rustrt.def.in
@@ -1,4 +1,3 @@
-__morestack
 chan_id_send
 check_claims
 debug_box

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,3 @@`
`1`		`-__morestack`
`2`	`1`	`chan_id_send`
`3`	`2`	`check_claims`
`4`	`3`	`debug_box`