arg-skipping code for powerpc dynamic linker

this allows using the dynamic linker as a command to load programs.

diff --git a/src/ldso/powerpc/start.s b/src/ldso/powerpc/start.s
index 08b5979a1c8982def37f0e6b554f73b8da0d514a..6c499e8e414c73c6691b5eda24d6e230cb2d16d6 100644 (file)
--- a/src/ldso/powerpc/start.s
+++ b/src/ldso/powerpc/start.s
@@ -16,6 +16,14 @@ _start:
        bl      __dynlink
        addi    1, 1, 16
 
+       lwz     4, 0(1)
+1:     addi    4, 4, -1
+       lwzu    5, 4(1)
+       cmpwi   5, -1
+       beq-    1b
+       addi    4, 4, 1
+       stwu    4, -4(1)
+
        mtlr    3
        li      3, 0
        blr