orangecms

Starting kernel ...

undefined instruction
pc : [<80008008>]          lr : [<8841e2c4>]
sp : 883bf4f8  ip : 00000000     fp : 883c040b
r10: 8848978c  r9 : 7fde7101     r8 : 883bffe0
r7 : 883bffc4  r6 : 00001f40     r5 : 884917cc  r4 : 00000000
r3 : 00000064  r2 : 80000100     r1 : 00001f40  r0 : 56190527
Flags: nzCv IRQs off FIQs off Mode SVC_32

orangecms

#!/bin/sh

DIFF=`cmp -l "$1" "$2" | wc -l`
SIZE=`ls -l "$1" | awk '{print $5}'`
STAT=`echo | awk "{print 100*$DIFF/$SIZE}"`

echo "$DIFF / $SIZE bytes differ (${STAT}%)"

orangecms

What is this?

Golang on Linux was not yet using the new year 2038 proof syscalls on 32-bit systems, leading to crashes on >=5.0 kernels without 32-bit compat. I filed an issue and went on to implement that.

Reference commits where Linux added the new 64-bit syscalls:

• 00bf25d693e7f69497cb7f61d46ef99fe295a8a5

orangecms

futexwakeup addr=0x547a08 returned -38
SIGSEGV: segmentation violation
PC=0x55e04 m=2 sigcode=1 addr=0x1006

goroutine 0 gp=0x14025a8 m=2 mp=0x142c808 [idle]:
runtime.futexwakeup(0x547a08, 0x1)
        runtime/os_linux.go:100 +0x6c fp=0x1445f94 sp=0x1445f68 pc=0x55e04
runtime.notewakeup(0x547a08)
        runtime/lock_futex.go:32 +0x60 fp=0x1445fa8 sp=0x1445f94 pc=0x2846c
runtime.startlockedm(0x1402128)

orangecms

diff '--color=auto' -x Makefile -rush OS/linux/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts firmware/u-boot/arch/arm/dts/bcm2711-rpi-4-b.dts
--- OS/linux/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts	2025-05-03 13:33:57.953289410 +0200
+++ firmware/u-boot/arch/arm/dts/bcm2711-rpi-4-b.dts	2023-02-21 20:44:21.319965771 +0100
@@ -1,2 +1,262 @@
 // SPDX-License-Identifier: GPL-2.0
-#include "arm/broadcom/bcm2711-rpi-4-b.dts"
+/dts-v1/;
+#include "bcm2711.dtsi"
+#include "bcm2711-rpi.dtsi"
+#include "bcm283x-rpi-usb-peripheral.dtsi"

orangecms

#!/bin/sh

# have rkbin and xrock in the same directory
# https://github.com/rockchip-linux/rkbin
# https://github.com/xboot/xrock

# Run this in the xboot directory.
# Have rkbin in the same parent directory.
_BDIR=../rkbin/bin/rk35
# DRAM init binary

orangecms

• Allwinner
• Amlogic
• Broadcom
• Rockchip
• TI
• HiSilicon
• MediaTek
• Qualcomm
• Samsung
• NXP

orangecms

#!/bin/env python3

# convert time in microseconds to a human readable timestamp, e.g. 0:13:37.000123

from datetime import timedelta
import sys
ts=int(sys.argv[1])
td=timedelta(microseconds=ts)
print(str(td))

orangecms

see PSPReverse/PSPTool#63

Diffing G733PYV323.rom vs GX650PY319.rom

Second gen (after Picasso/Raven Ridge) vs Second gen (after Picasso/Raven Ridge)
IMC Firmware                                  both empty
Gigabit ethernet firmware                     both empty
XHCI firmware                                 both empty
Fam 17 Model 00-0f BIOS                       both empty

orangecms

/home:
  |
  |  0008 .            636d d  |  0000 ..           41ed d  |  0009 RTFD         63c0 d  |
  |  0011 bup          63f9 d  |  0023 cls          63c0 d  |  0025 dal_ivm      63c0 d  |
  |  0035 dal_sdm      63c0 d  |  0040 fpf          63ff d  |  0043 fwupdate     63e8 d  |
  |  0055 gpio         63f8 d  |  0060 hotham       63fe d  |  0064 icc          63e8 d  |
  |  0092 ish_srv      63e0 d  |  0096 loadmgr      63c0 d  |  0099 manuf        63f8 d  |
  |  0101 mca          63ed d  |  0108 mca_temp     63c0 d  |  0110 mctp         63e8 d  |
  |  0117 nfc          63e8 d  |  0120 nvinf        63ff d  |  0122 pavp         63f8 d  |
  |  0145 pmt          63e8 d  |  0148 policy       63f9 d  |  0174 ptt          63c0 d  |