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avr: add support for AVR 8-bit architecture
This commit adds support for the Atmel AVR 8-bit RISC architecture. This is the first 8-bit architecture to be added to crosstool-ng so the configuration options for 8-bit architectures are added here as well. gcc has had support for AVR for quite a while, at least since the 4.3 series for the currently popular ATmega microcontroler series. The AVR architecture only supports bare-metal toolchains. gcc for the AVR 8-bit architecture, usually referred to as avr-gcc, is commonly used in conjunction with the avr-libc library which provides additional resources for the Atmel AVR 8-bit microcontrollers. avr-gcc can also be found as a supported package in some recent Linux distributions. This commit also closes #66 Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
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# AVR specific config options | ||
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## select ARCH_SUPPORTS_8 | ||
## select ARCH_DEFAULT_8 | ||
## select ARCH_REQUIRES_MULTILIB | ||
## | ||
## help The 8-bit AVR architecture, as defined by: | ||
## help http://www.atmel.com/products/microcontrollers/avr |
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# Compute AVR-specific values | ||
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CT_DoArchTupleValues() { | ||
CT_TARGET_ARCH="${CT_ARCH}" | ||
} |