Re: [PATCH] ARM: i.MX: HAB: Allow for semicolons in HAB environment variables

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On 16.01.25 12:26, Bastian Krause wrote:
> On 1/16/25 12:12 PM, Ahmad Fatoum wrote:
>> On 16.01.25 10:38, Sascha Hauer wrote:
>>> With CONFIG_HAB_CERTS_ENV=y, paths and PKCS#11 URIs to the HAB
>>> certificates are taken from environment variables (allowing for better
>>> integration with build systems). In this case these values are passed
>>> internally via compiler macros (-D) to the imx-image host tool. PKCS#11
>>> URIs usually contain semicolons. The semicolons didn't make it through
>>> to the imx-image configuration file due to wrong escapes. Fix this by
>>> expanding the environment variables using make rather than shell.
>>>
>>> Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
>>> ---
>>>   scripts/Makefile.lib | 2 +-
>>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
>>> index f195ddb7e8..7dcd8c9892 100644
>>> --- a/scripts/Makefile.lib
>>> +++ b/scripts/Makefile.lib
>>> @@ -579,7 +579,7 @@ cmd_imximage_S_dcd=                        \
>>>   overwrite-hab-env = $(shell set -e; \
>>>         test -n "$(CONFIG_HAB_CERTS_ENV)"; \
>>>         test -n "$$$(1)"; \
>>> -      echo -D$(1)=\\\"$(shell echo $$$(1))\\\")
>>> +      echo -D$(1)=\''"${${1}}"'\')
>>
>> Does {} and () make a difference here?
> 
> I don't think so. This also works:
> 
> -      echo -D$(1)=\''"${${1}}"'\')
> +      echo -D$(1)=\''"$($(1))"'\')

Thanks for testing. @Sascha, can you switch to using () instead?
Otherwise it's confusing to have $(1) on the left-hand side,
but ${1} on the right.

(My personal favorite would be -D$(1)=$(call stringify,$($(1))) FWIW,
provided that it works as intended)

Thanks,
Ahmad

> 
> Bastian
> 
>>
>>>     overwrite-fit-env = $(shell set -e; \
>>>         test -n "$(CONFIG_BOOTM_FITIMAGE_PUBKEY_ENV)"; \
>>
>>
> 
> 


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