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Question about variable KERNEL_TOOLCHAIN


balbes150
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How to use this variable ? Tried to set different options, but when compiling the kernel aarch64, always use the system version 4.8. Set both variables in the config file, the variable UBOOT_TOOLCHAIN is triggered (begins to use the written version), and this variable does not change either as the compiler. This is my local problem not correct the system configuration or the same situation with the others ? For now I solve this problem rough hack - point in the variable PATCH user, the first desired directory with the compiler. Another associated question in the script general.sh in lines 471-474, with a list of packages for the host system specified compilers, including aarch64. As it should be ? And in the script common.sh 60 line 184 and line on a different set redirect output, as it should be ?

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How to use this variable ? Tried to set different options, but when compiling the kernel aarch64, always use the system version 4.8. Set both variables in the config file, the variable UBOOT_TOOLCHAIN is triggered (begins to use the written version), and this variable does not change either as the compiler. This is my local problem not correct the system configuration or the same situation with the others ?

KERNEL_TOOLCHAIN and UBOOT_TOOLCHAIN variables are used internally when default distribution toolchain version for target architecture does not fit the requirement. These variable are not designed to be set by user, they are controlled by UBOOT_NEEDS_GCC and KERNEL_NEEDS_GCC variables if they are set. So in case you added new configuration file to lib/config/sources/, you need to define UBOOT_NEEDS_GCC and KERNEL_NEEDS_GCC variables there if it's not possible to use default Xenial toolchains, check cubox.conf for example. And in case required toolchain is not downloaded by default, you need to add it to prepare_host() in general.sh

 

Another associated question in the script general.sh in lines 471-474, with a list of packages for the host system specified compilers, including aarch64. As it should be ?

aarch64 compilers are used for Pine64 and Odroid C2, so everything there is correct. Or I didn't understand your question.

 

And in the script common.sh 60 line 184 and line on a different set redirect output, as it should be ?

Sorry, I don't understand your question. Output is redirected to log file if PROGRESS_LOG_TO_FILE=yes, and it is redirected to /dev/null if PROGRESS_DISPLAY=none.

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Ð—Ð°Ð²ÐµÑ€ÑˆÐ°ÑŽÑ‰Ð°Ñ Ð¾Ð´Ð¸Ð½Ð°Ñ€Ð½Ð°Ñ ÐºÐ°Ð²Ñ‹Ñ‡ÐºÐ° в 60 Ñтроке Ñтоит до команды перенаправлениÑ, а в 184 поÑле.

 

Ð’ каталог armbian/toolchains загружаютÑÑ ÐºÐ¾Ð¼Ð¿Ð¸Ð»Ñторы, в том чиÑле aarch64-linux-gnu, и аналогичный компилÑтор ÑтавитÑÑ Ð² ÑиÑтему пакетами из реп. Ð’Ð¾Ð¿Ñ€Ð¾Ñ Ð² дублировании,

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Ð—Ð°Ð²ÐµÑ€ÑˆÐ°ÑŽÑ‰Ð°Ñ Ð¾Ð´Ð¸Ð½Ð°Ñ€Ð½Ð°Ñ ÐºÐ°Ð²Ñ‹Ñ‡ÐºÐ° в 60 Ñтроке Ñтоит до команды перенаправлениÑ, а в 184 поÑле.

И то и то работает, наÑколько Ñ Ð·Ð½Ð°ÑŽ, eval обрабатывает Ñтроку корректно и так и так

 

Ð’ каталог armbian/toolchains загружаютÑÑ ÐºÐ¾Ð¼Ð¿Ð¸Ð»Ñторы, в том чиÑле aarch64-linux-gnu, и аналогичный компилÑтор ÑтавитÑÑ Ð² ÑиÑтему пакетами из реп. Ð’Ð¾Ð¿Ñ€Ð¾Ñ Ð² дублировании,

Ð’Ð¾Ð¿Ñ€Ð¾Ñ Ð² верÑии, в Ubuntu Xenial верÑÐ¸Ñ aarch64-linux-gnu-gcc - 5.3.1 или 5.4.0, но u-boot Ð´Ð»Ñ Odroid C2 Ñ Ñтой верÑией нормально не ÑоберетÑÑ, поÑтому приходитÑÑ Ñ‚Ð°Ñ‰Ð¸Ñ‚ÑŒ более Ñтарый тулчейн. Ð’ то же Ð²Ñ€ÐµÐ¼Ñ Ð´Ð»Ñ Ñдра C2 можно иÑпользовать и более новую верÑию.

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ПоÑмотрел, как пропиÑано значение UBOOT_NEEDS_GCC в конфиг файлах. Там указан номер верÑии. Ркак указать каталог, где находитьÑÑ Ð½ÑƒÐ¶Ð½Ð°Ñ Ð²ÐµÑ€ÑÐ¸Ñ ? Или такое не возможно ?

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Такое не реализовано, но еÑли указать точную верÑию (например UBOOT_NEEDS_GCC="== 4.9.4"), то она будет найдена в директории toolchains.

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Ðаверное у Ð¼ÐµÐ½Ñ ÐºÑ€Ð¸Ð²Ñ‹Ðµ руки. Попробовал разные варианты Ð´Ð»Ñ Ñтой переменной, равно, больше - результат один, пишет "ÑинтакÑичеÑÐºÐ°Ñ Ð¾ÑˆÐ¸Ð±ÐºÐ°". И при Ñтом видно, что проиÑходит Ñравнение Ñ Ð²Ñ‚Ð¾Ñ€Ð¾Ð¹ переменной UBOOT_NEEDS_GCC. Пока вернулÑÑ Ðº "тупому" варианту Ñборки - первым каталогом поиÑка, указать в переменной PATH нужный вариант.

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