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6c6829a061
To build uClibc correctly we need correct endianness selected in the
crosstool-NG. Xtensa cores may be little- or big-endian, but this
property is static. The toolchain knows the core endianness and doesn't
need options to select it.
Enable ARCH_SUPPORTS_BOTH_ENDIAN and select LE by default. Specify empty
CT_ARCH_ENDIAN_CFLAG so that -m{big,little}-endian don't get added to
the TARGET_CFLAGS, as it's not supported by gcc. Specify empty
CT_ARCH_ENDIAN_LDFLAG so that -EB/-EL don't get added to the
TARGET_LDFLAGS as they are ignored. Select big-endian in the example
xtensa-unknown-linux-uclibc configuration.
This fixes uClibc toolchain build for little-endian cores.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
23 lines
940 B
Plaintext
23 lines
940 B
Plaintext
# xtensa specific configuration file
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## select ARCH_SUPPORTS_32
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## select ARCH_SUPPORTS_BOTH_ENDIAN
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## select ARCH_DEFAULT_LE
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## select ARCH_SUPPORTS_BOTH_MMU
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## select ARCH_DEFAULT_HAS_MMU
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##
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## help The xtensa architecture
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## help
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## help Xtensa is a configurable and extensible processor architecture.
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## help Supporting a specific configuration typically requires minor
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## help modifications to a small set of configuration files in various
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## help development tools. This process is automated and only requires
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## help a configuration specific 'overlay' file.
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## help
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## help For a custom configuration, select the XTENSA_CUSTOM option and
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## help provide the name of the processor configuration through the
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## help CT_ARCH_XTENSA_CUSTOM_NAME option.
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## help
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## help The default option (ARCH_xtensa_fsf) uses a built-in configuration,
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## help which may or may not work for a particular Xtensa processor.
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