[20250118]建立完善fetch21.gdb跟踪逻辑读脚本.txt

[20250118]建立完善fetch21.gdb跟踪逻辑读脚本.txt --//昨天做一些改进，今天加入dba地址转换为文件号以及块号。 $ grep -v "^#" fetch21.gdb | cat -s set pagination off set $a=0x0 set $b=0x0 set $c=0x0 set $d=0x0 break __read_nocancel commands     silent     set $a=0x0     set $b=0x0     set $c=0x0     set $d=0x0     continue end break kteinpscan_int1   commands     silent     shell echo -n $( date +"%Y/%m/%d %T.%N : ")     printf "kteinpscan_int1 0x%x file#=%d block_no=%d\n", *($rdi+4), *($rdi+4)>>22,*($rdi+4)&0x3ffff     continue   end break kdst_fetch if *($rsi+28) != 0x0   commands     silent     shell echo -n $( date +"%Y/%m/%d %T.%N : ")     printf "kdst_fetch      0x%x file#=%d block_no=%d\n", *($rsi+28), *($rsi+28)>>22,*($rsi+28)&0x3ffff     continue   end break kteinmap   commands     silent     shell echo -n $( date +"%Y/%m/%d %T.%N : ")     printf "kteinmap        0x%x file#=%d block_no=%d\n", *($rdi+4),*($rdi+4)>>22,*($rdi+4)&0x3ffff     continue   end break kdifxs0 if *($rdi+28) != $a   commands     silent     shell echo -n $( date +"%Y/%m/%d %T.%N : ")     printf "kdifxs0         0x%x file#=%d block_no=%d\n",*($rdi+28),*($rdi+28)>>22, *($rdi+28)&0x3ffff         set $a= *($rdi+28)    continue   end break kdirfrs if *($rdi+28) != $c   commands     silent     shell echo -n $( date +"%Y/%m/%d %T.%N : ")     printf "kdirfrs         0x%x file#=%d block_no=%d\n", *($rdi+28),*($rdi+28)>>22, *($rdi+28)&0x3ffff         set $c= *($rdi+28)    continue   end break kdifkc if *($rsi+36) != $d   commands     silent     shell echo -n $( date +"%Y/%m/%d %T.%N : ")     printf "kdifkc          0x%x file#=%d block_no=%d\n", *($rsi+36), *($rsi+36)>>22, *($rsi+36)&0x3ffff         set $d= *($rsi+36)    continue   end break kdsgrp if *($rdi+28) != $b   commands     silent     shell echo -n $( date +"%Y/%m/%d %T.%N : ")     printf "kdsgrp          0x%x file#=%d block_no=%d\n", *($rdi+28), *($rdi+28)>>22, *($rdi+28)&0x3ffff         set $b= *($rdi+28)     continue   end --// 简单测试如下,： @46on 1 select * from emp ; (gdb) c Continuing. 2025/01/18 10:36:02.838506605 :kteinpscan_int1 0x3000092 file#=12 block_no= 146 2025/01/18 10:36:02.843545728 :kteinmap        0x3000092 file#=12 block_no= 146 2025/01/18 10:36:02.848896431 :kdst_fetch      0x3000093 file#=12 block_no= 147 2025/01/18 10:36:02.853521374 :kdst_fetch      0x3000094 file#=12 block_no= 148 2025/01/18 10:36:02.857827948 :kdst_fetch      0x3000095 file#=12 block_no= 149 2025/01/18 10:36:02.866693424 :kdst_fetch      0x3000096 file#=12 block_no= 150 2025/01/18 10:36:02.871357813 :kdst_fetch      0x3000096 file#=12 block_no= 150 2025/01/18 10:36:02.876111216 :kdst_fetch      0x3000097 file#=12 block_no= 151