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artiq-zynq
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better way of handling incorrect pc address

This commit is contained in:
mwojcik 2022-10-12 16:21:26 +08:00
parent 31ceee7e22
commit 93bd98f6c0
1 changed files with 6 additions and 6 deletions
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12
src/runtime/src/kernel/core1.rs
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@ -10,8 +10,7 @@ use libcortex_a9::{
enable_fpu, enable_fpu,
cache::{dcci_slice, iciallu, bpiall}, cache::{dcci_slice, iciallu, bpiall},
asm::{dsb, isb}, asm::{dsb, isb},
sync_channel, sync_channel
regs::MPIDR
}; };
use libboard_zynq::{mpcore, gic}; use libboard_zynq::{mpcore, gic};
use libsupport_zynq::ram; use libsupport_zynq::ram;
@ -221,17 +220,18 @@ extern fn dl_unwind_find_exidx(pc: *const u32, len_ptr: *mut u32) -> *const u32
let length; let length;
let start: *const EXIDX_Entry; let start: *const EXIDX_Entry;
unsafe { unsafe {
let id = MPIDR.read().cpu_id() as usize; if (&__text_start as *const u32 <= pc && pc < &__text_end as *const u32) {
// try to look up kernel for core 1 only
if (&__text_start as *const u32 <= pc && pc < &__text_end as *const u32) || id == 0 {
length = (&__exidx_end as *const EXIDX_Entry).offset_from(&__exidx_start) as u32; length = (&__exidx_end as *const EXIDX_Entry).offset_from(&__exidx_start) as u32;
start = &__exidx_start; start = &__exidx_start;
} else { } else if KERNEL_IMAGE != ptr::null() {
let exidx = KERNEL_IMAGE.as_ref() let exidx = KERNEL_IMAGE.as_ref()
.expect("dl_unwind_find_exidx kernel image") .expect("dl_unwind_find_exidx kernel image")
.library.get().as_ref().unwrap().exidx(); .library.get().as_ref().unwrap().exidx();
length = exidx.len() as u32; length = exidx.len() as u32;
start = exidx.as_ptr(); start = exidx.as_ptr();
} else {
*len_ptr = 0;
return 0 as *const u32;
} }
*len_ptr = length; *len_ptr = length;
} }