README: Update gdbinit script

1. Remove fw_dynamic_info setting
2. Adjust dtb_addr and zsb_addr to be memory resident

Signed-off-by: Chen Pei <cp0613@linux.alibaba.com>

Author: cp0613

README.adoc

@@ -290,25 +290,16 @@ monitor set resume-bkpt-exception on
 set $opensbi_addr = 0x60000000
 set $vmlinux_addr = $opensbi_addr + 0x00400000
 set $rootfs_addr  = $opensbi_addr + 0x04000000
-set $dtb_addr     = $rootfs_addr  - 0x00100000
-set $zsb_addr     = $rootfs_addr  - 0x00008000
-set $dyninfo_addr = $rootfs_addr  - 0x40
-set $flag_addr    = $rootfs_addr  - 0x100
+set $dtb_addr     = $vmlinux_addr - 0x00100000
+set $zsb_addr     = $vmlinux_addr - 0x00008000
+set $flag_addr    = $vmlinux_addr - 0x100
 
 # Load kernel
 restore zero_stage_boot.bin binary          $zsb_addr
 restore <preceding dts example>.dtb binary  $dtb_addr
 restore fw_dynamic.bin binary               $opensbi_addr
 restore Image binary                        $vmlinux_addr
 
-# Set opensbi dynamic info param
-set *(unsigned long *)($dyninfo_addr)      = 0x4942534f
-set *(unsigned long *)($dyninfo_addr + 8)  = 2
-set *(unsigned long *)($dyninfo_addr + 16) = $vmlinux_addr
-set *(unsigned long *)($dyninfo_addr + 24) = 1
-set *(unsigned long *)($dyninfo_addr + 32) = 0
-set *(unsigned long *)($dyninfo_addr + 40) = 0
-
 # Set boot flag for CPU functional setting
 # This flag.BIT[0] makes zsb enable RV64XT32 by setting mxstatus.[63]=1
 # set *(unsigned int *)$flag_addr = 0x1