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satman: print better debugging information on exception
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f5b386c0d8
commit
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@ -1,4 +1,4 @@
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#![feature(never_type, panic_implementation, panic_info_message, const_slice_len)]
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#![feature(never_type, panic_implementation, panic_info_message, const_slice_len, try_from)]
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#![no_std]
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#[macro_use]
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@ -7,7 +7,8 @@ extern crate log;
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extern crate board_misoc;
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extern crate board_artiq;
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use board_misoc::{csr, ident, clock, uart_logger};
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use core::convert::TryFrom;
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use board_misoc::{csr, irq, ident, clock, uart_logger};
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use board_artiq::{i2c, spi, si5324, drtioaux};
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#[cfg(has_serwb_phy_amc)]
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use board_artiq::serwb;
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@ -371,6 +372,23 @@ pub extern fn main() -> i32 {
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#[no_mangle]
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pub extern fn exception(vect: u32, _regs: *const u32, pc: u32, ea: u32) {
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let vect = irq::Exception::try_from(vect).expect("unknown exception");
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fn hexdump(addr: u32) {
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let addr = (addr - addr % 4) as *const u32;
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let mut ptr = addr;
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println!("@ {:08p}", ptr);
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for _ in 0..4 {
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print!("+{:04x}: ", ptr as usize - addr as usize);
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print!("{:08x} ", unsafe { *ptr }); ptr = ptr.wrapping_offset(1);
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print!("{:08x} ", unsafe { *ptr }); ptr = ptr.wrapping_offset(1);
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print!("{:08x} ", unsafe { *ptr }); ptr = ptr.wrapping_offset(1);
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print!("{:08x}\n", unsafe { *ptr }); ptr = ptr.wrapping_offset(1);
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}
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}
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hexdump(pc);
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hexdump(ea);
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panic!("exception {:?} at PC 0x{:x}, EA 0x{:x}", vect, pc, ea)
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}
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