| llvm-locstats - calculate statistics on DWARF debug location |
| ============================================================ |
| |
| .. program:: llvm-locstats |
| |
| SYNOPSIS |
| -------- |
| |
| :program:`llvm-locstats` [*options*] [*filename*] |
| |
| DESCRIPTION |
| ----------- |
| |
| :program:`llvm-locstats` works like a wrapper around :program:`llvm-dwarfdump`. |
| It parses :program:`llvm-dwarfdump` statistics regarding debug location by |
| pretty printing it in a more human readable way. |
| |
| The line 0% shows the number and the percentage of DIEs with no location |
| information, but the line 100% shows the information for DIEs where there is |
| location information in all code section bytes (where the variable or parameter |
| is in the scope). The line [50%,60%) shows the number and the percentage of DIEs |
| where the location information is between 50 and 60 percentage of its scope |
| covered. |
| |
| OPTIONS |
| ------- |
| |
| .. option:: -only-variables |
| |
| Calculate the location statistics only for local variables. |
| |
| .. option:: -only-formal-parameters |
| |
| Calculate the location statistics only for formal parameters. |
| |
| .. option:: -ignore-debug-entry-values |
| |
| Ignore the location statistics on locations containing the |
| debug entry values DWARF operation. |
| |
| EXIT STATUS |
| ----------- |
| |
| :program:`llvm-locstats` returns 0 if the input file were parsed |
| successfully. Otherwise, it returns 1. |
| |
| OUTPUT EXAMPLE |
| -------------- |
| |
| .. code-block:: none |
| |
| ================================================= |
| Debug Location Statistics |
| ================================================= |
| cov% samples percentage(~) |
| ------------------------------------------------- |
| 0% 1 16% |
| (0%,10%) 0 0% |
| [10%,20%) 0 0% |
| [20%,30%) 0 0% |
| [30%,40%) 0 0% |
| [40%,50%) 0 0% |
| [50%,60%) 1 16% |
| [60%,70%) 0 0% |
| [70%,80%) 0 0% |
| [80%,90%) 1 16% |
| [90%,100%) 0 0% |
| 100% 3 50% |
| ================================================= |
| -the number of debug variables processed: 6 |
| -PC ranges covered: 81% |
| ------------------------------------------------- |
| -total availability: 83% |
| ================================================= |
| |
| SEE ALSO |
| -------- |
| |
| :manpage:`llvm-dwarfdump(1)` |
