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| author | Roland Gaudig <roland.gaudig@weidmueller.com> | 2021-07-23 15:29:21 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-07-27 21:50:47 +0300 |
| commit | f4f8d8bb1abc79c4186ee8dc2ea536d62c6cb149 (patch) | |
| tree | ffb09d738a6f68edb543be8eac0f424ec15cd4d3 /cmd/Kconfig | |
| parent | 6244cda4f32cb95f66de2a61ef728f325514f8f6 (diff) | |
| download | u-boot-f4f8d8bb1abc79c4186ee8dc2ea536d62c6cb149.tar.xz | |
cmd: setexpr: add format string handling
Add format string handling operator to the setexpr command.
It allows to use C or Bash like format string expressions to be
evaluated with the result being stored inside the environment variable
name.
setexpr <name> fmt <format> [value]...
The following example
setexpr foo fmt "%d, 0x%x" 0x100 ff
will result in $foo being set to "256, 0xff".
Signed-off-by: Roland Gaudig <roland.gaudig@weidmueller.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'cmd/Kconfig')
| -rw-r--r-- | cmd/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/cmd/Kconfig b/cmd/Kconfig index e40d390f88..f1bcf9ebde 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -1414,6 +1414,14 @@ config CMD_SETEXPR Also supports loading the value at a memory location into a variable. If CONFIG_REGEX is enabled, setexpr also supports a gsub function. +config CMD_SETEXPR_FMT + bool "setexpr_fmt" + default n + depends on CMD_SETEXPR + help + Evaluate format string expression and store result in an environment + variable. + endmenu menu "Android support commands" |