jmatyas
/
zynq-rs
forked from M-Labs/zynq-rs
1
0
Fork 0
Code Pull Requests Activity

libsupport_zynq/ram: check ptr range for deallocation

This commit is contained in:
pca006132 2020-09-03 12:56:10 +08:00
parent 157439bc88
commit a116142f63
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
libsupport_zynq/src/ram.rs
View File

@ -34,7 +34,10 @@ unsafe impl GlobalAlloc for CortexA9Alloc {
}
unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
if cfg!(not(feature = "alloc_core")) || MPIDR.read().cpu_id() == 0 {
if cfg!(not(feature = "alloc_core"))
|| ((&__heap0_start as *const usize as usize <= ptr as usize)
&& ((ptr as usize) < &__heap0_end as *const usize as usize))
{
&self.0
} else {
&self.1