squiid/rust
1
0
Fork 0
Code Issues Pull requests Projects Activity

rt: Fix alignment of new stack segments

Browse source
This commit is contained in:
Brian Anderson 2011-12-15 14:46:12 -08:00
parent ab4f35c1f1
commit 23df4de86d
1 changed files with 2 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
src/rt/rust_task.cpp
View file

@ -596,10 +596,8 @@ rust_task::new_stack(size_t stk_sz, void *args_addr, size_t args_sz) {
stk_seg *stk_seg = new_stk(sched, this, stk_sz + args_sz);
uint8_t *new_sp = (uint8_t*)stk_seg->end;
size_t sizeof_retaddr = sizeof(void*);
// Make enough room on the new stack to hold the old stack pointer
// in addition to the function arguments
new_sp = align_down(new_sp - (args_sz + sizeof_retaddr));
// Push the function arguments to the new stack
new_sp = align_down(new_sp - args_sz);
memcpy(new_sp, args_addr, args_sz);
record_stack_limit();
return new_sp;