[PATCH V3 0/3] cmd: env: select: Add output for available environment targets

[Andy Shevchenko]

On Mon, May 12, 2025 at 03:15:06PM +0000, Christoph Niedermaier wrote:
> From: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
> Sent: Monday, May 12, 2025 10:38 AM
> > On Mon, May 12, 2025 at 08:22:19AM +0000, Christoph Niedermaier wrote:
> >> From: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
> >> Sent: Monday, May 12, 2025 9:38 AM
> >>> On Fri, May 09, 2025 at 09:00:40PM +0200, Christoph Niedermaier wrote:
> >>>> Add the "-l" parameter to the "env select" command to print the available
> >>>> environment targets, convert all argument parsing in the file nvedit.c to
> >>>> getopt() and check that with unit tests.
> >>>>
> >>>> The first patch converts the parsing of arguments to getopt() for all env
> >>>> commands. The second one adds unit tests for checking the env command.
> >>>> These were used to check the env commands before and after the conversion.
> >>>> The third patch adds the actual new parameter "-l" for the "env select"
> >>>> command.
> >>>
> >>> What is the binary size increase with this change, please?
> >>
> >> I don't know exactly which binary size I should look at?
> >> I have looked at the object file of nvedit.c:
> >>
> >> I built it with the config dh_imx6_defconfig.
> >>
> >> Before my patches:
> >> $ ls -la cmd/nvedit.o
> >> -rw-r--r-- 1 developer developer 57644 May 12 10:03 cmd/nvedit.o
> >>
> >> After my patches:
> >> $ ls -la cmd/nvedit.o
> >> -rw-r--r-- 1 developer developer 59292 May 12 10:06 cmd/nvedit.o
> >>
> >> So the increase is 1648 Bytes (+2.86%).
> > 
> > U-Boot binary. And better to use bloat-o-meter script for that, it shows the
> > breakdown in more precise terms.
> 
> With bloat-o-meter it looks like this (before and after my patches):
> 
> ./bloat-o-meter -p arm-linux-gnueabihf- u-boot_before u-boot_after
> add/remove: 5/1 grow/shrink: 4/2 up/down: 1152/-652 (500)
> Function                                     old     new   delta
> bdinfo_print_all                               -     404    +404
> __getopt.constprop                             -     292    +292
> substitute                                     -     156    +156
> print_eth                                      -     124    +124
> print_bi_dram                                  -      72     +72
> do_env_default                               116     152     +36
> do_env_import                                424     456     +32
> do_env_print                                 740     764     +24
> do_env_delete                                 92     104     +12
> do_env_export                                336     328      -8
> substitute.lto_priv                          156       -    -156
> do_bdinfo                                    580      92    -488
> Total: Before=501681, After=502181, chg +0.10%

Not bad. Thank you for sharing!

-- 
With Best Regards,
Andy Shevchenko