Correctly set the address of FP when unwinding from within fibers on aarch64
Fixes
@@ -86,6 +86,7 @@ FUNCTION(wasmtime_fiber_start):
0x06, /* DW_OP_deref */ \
0x23, 0xa0, 0x1 /* DW_OP_plus_uconst 0xa0 */
+ .cfi_rel_offset x29, -0x08
.cfi_rel_offset lr, -0x10
.cfi_rel_offset x19, -0x18
.cfi_rel_offset x20, -0x20
@@ -96,7 +97,6 @@ FUNCTION(wasmtime_fiber_start):
.cfi_rel_offset x25, -0x48
.cfi_rel_offset x26, -0x50
.cfi_rel_offset x27, -0x58
- .cfi_rel_offset x29, -0x60
// Load our two arguments from the stack, where x1 is our start procedure
// and x0 is its first argument. This also blows away the stack space used
