-
Notifications
You must be signed in to change notification settings - Fork 31
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Add Unicon program locations causing GC to the heap verifier log.
The locations are specified by filename and line number. Also Clean up the log output if no detailed verifications are being performed so that there is more space for the locations. Remove a log entry from hgrow(), which was left in by mistake. Add a small utility program that displays the most commom locations.
- Loading branch information
Showing
3 changed files
with
102 additions
and
11 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| #------------------------------------------------------------------------------- | ||
| # | ||
| # This file is released under the terms of the GNU GENERAL PUBLIC LICENSE | ||
| # (GPL) version 2. The licence may be found in the root directory of the Unicon | ||
| # source directory in the file COPYING. | ||
| # | ||
| #------------------------------------------------------------------------------- | ||
| # Analyse output from the heap verifier to show which locations in the | ||
| # Unicon program caused the greatest number of garbage collections. | ||
| # | ||
| # Don Ward October 2023 | ||
| # | ||
| # To get the output as clean as possible, set the environmnent variable VRFY to a | ||
| # non-zero value that does not have any bit set below bit number MaxType (defined in | ||
| # rmacros.h). Set a break point on the function Zdbgbrk and call dbgbrk() at a | ||
| # convenient point in the Unicon program. Then capture the result of executing | ||
| # vfryPrintLog(0) in the debugger. | ||
| # | ||
| # Each line should be something like | ||
| # [ buffer line] file_name line_number | ||
| # e.g. | ||
| # [ 116] myprog.icn 00263 | ||
| # [ 117] myprog.icn 00263 | ||
| # [ 118] another.icn 00403 | ||
| # [ 119] another.icn 00403 | ||
| # [ 120] myprog.icn 00399 | ||
| # [ 121] myprog.icn 00399 | ||
| # [ 122] myprog.icn 00263 | ||
| # [ 123] myprog.icn 00263 | ||
| # etc. | ||
| # | ||
| # For any of this to work, Unicon must be built with | ||
| # --enable-devmode and --enable-verifyheap | ||
| #------------------------------------------------------------------------------- | ||
|
|
||
| procedure main(args) | ||
| local f, fn, ft, line, fns, ans, n | ||
|
|
||
| every fn := !args do { | ||
| if f := open(fn) then write(repl("-",10), " ", fn) else { write("cannot open ", fn); next } | ||
| # Build the frequency table | ||
| ft := table(0) | ||
| every line := !f do { | ||
| # skip over the buffer line number to the start of the file name | ||
| if fns := find("] ", line) then ft[line[fns+2:0]] +:= 1 | ||
| } | ||
| ans := sort(ft,2) | ||
| # Write out the counts in descending order (i.e. largest count first) | ||
| every n := *ans to 1 by -1 do { | ||
| write(ans[n][1], " ", ans[n][2]) | ||
| } | ||
| close(f) | ||
| } | ||
| end | ||
|
|