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crosstool-ng/scripts/build/libc/avr-libc.sh

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avr-libc: add support for avr-libc C library This commit adds support for the avr-libc C library. According to the project page at http://www.nongnu.org/avr-libc , the avr-libc package provides a subset of the standard C library for Atmel AVR 8-bit RISC microcontrollers. In addition, the library provides the basic startup code needed by most applications. Support for this library in crosstool-ng is only enabled for the AVR 8-bit target. The avr-libc manual and most distributions build the AVR 8-bit gcc toolchain with the "avr" (non-canonical) target. Some experimentation also led to the conclusion that other (canonical) targets are not very well supported, so we force the "avr" target for crosstool-ng as well. The manual also recommends building avr-libc after the final gcc build. To accomplish this with crosstool-ng, a new do_libc_post_cc step is added, in which currently only avr-libc performs its build, and is a no-op for the other libc options. Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
2015-06-21 23:53:06 +00:00
# This file adds functions to build the avr-libc C library
Add moxiebox as a choice for libc This required some rework of the libc selection, as moxiebox is a layer on top of another libc - newlib. Also, moxiebox'es host VM (`sandbox`) needs a libcrypto on the host. We will not have it if we're cross-compiling a canadian cross. Fortunately, all moxiebox needs from libcrypto is SHA256, and it already includes a standalone implementation of SHA256 in its runtime. Provide a little wrapper that allows moxiebox use that implementation for the host binary, too. Also, automate collecting/printing the list of all packages in a given category (e.g. LIBC or COMP_TOOLS), generate a list of all Kconfig symbols for a given category. Signed-off-by: Alexey Neyman <stilor@att.net>
2018-11-24 06:14:07 +00:00
avr_libc_post_cc()
{
Add option to re-enable ˋlibstdc++ˋ on avr targets. Due to the small flash space on AVR devices the library containing the standard types in C++ (ˋlibstdc++ˋ) does not get built normally when enabling the C++ language support. This option is an easy way to go back to the PC-way where ˋlibstdc++ˋ is built. Signed-off-by: Quentin Boswank <qubos@outlook.de>
2023-08-12 18:11:58 +00:00
if [ "${CT_CC_CORE_PASS_2_NEEDED}" != "y" ]; then
CT_DoStep INFO "Installing C library"
avr-libc: add support for avr-libc C library This commit adds support for the avr-libc C library. According to the project page at http://www.nongnu.org/avr-libc , the avr-libc package provides a subset of the standard C library for Atmel AVR 8-bit RISC microcontrollers. In addition, the library provides the basic startup code needed by most applications. Support for this library in crosstool-ng is only enabled for the AVR 8-bit target. The avr-libc manual and most distributions build the AVR 8-bit gcc toolchain with the "avr" (non-canonical) target. Some experimentation also led to the conclusion that other (canonical) targets are not very well supported, so we force the "avr" target for crosstool-ng as well. The manual also recommends building avr-libc after the final gcc build. To accomplish this with crosstool-ng, a new do_libc_post_cc step is added, in which currently only avr-libc performs its build, and is a no-op for the other libc options. Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
2015-06-21 23:53:06 +00:00
Add option to re-enable ˋlibstdc++ˋ on avr targets. Due to the small flash space on AVR devices the library containing the standard types in C++ (ˋlibstdc++ˋ) does not get built normally when enabling the C++ language support. This option is an easy way to go back to the PC-way where ˋlibstdc++ˋ is built. Signed-off-by: Quentin Boswank <qubos@outlook.de>
2023-08-12 18:11:58 +00:00
CT_DoLog EXTRA "Copying sources to build directory"
CT_DoExecLog ALL cp -av "${CT_SRC_DIR}/avr-libc/." \
"${CT_BUILD_DIR}/build-libc-post-cc"
cd "${CT_BUILD_DIR}/build-libc-post-cc"
avr-libc: add support for avr-libc C library This commit adds support for the avr-libc C library. According to the project page at http://www.nongnu.org/avr-libc , the avr-libc package provides a subset of the standard C library for Atmel AVR 8-bit RISC microcontrollers. In addition, the library provides the basic startup code needed by most applications. Support for this library in crosstool-ng is only enabled for the AVR 8-bit target. The avr-libc manual and most distributions build the AVR 8-bit gcc toolchain with the "avr" (non-canonical) target. Some experimentation also led to the conclusion that other (canonical) targets are not very well supported, so we force the "avr" target for crosstool-ng as well. The manual also recommends building avr-libc after the final gcc build. To accomplish this with crosstool-ng, a new do_libc_post_cc step is added, in which currently only avr-libc performs its build, and is a no-op for the other libc options. Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
2015-06-21 23:53:06 +00:00
Add option to re-enable ˋlibstdc++ˋ on avr targets. Due to the small flash space on AVR devices the library containing the standard types in C++ (ˋlibstdc++ˋ) does not get built normally when enabling the C++ language support. This option is an easy way to go back to the PC-way where ˋlibstdc++ˋ is built. Signed-off-by: Quentin Boswank <qubos@outlook.de>
2023-08-12 18:11:58 +00:00
CT_DoLog EXTRA "Configuring C library"
Fix the references to old config variables Signed-off-by: Alexey Neyman <stilor@att.net>
2017-05-30 05:32:38 +00:00
Add option to re-enable ˋlibstdc++ˋ on avr targets. Due to the small flash space on AVR devices the library containing the standard types in C++ (ˋlibstdc++ˋ) does not get built normally when enabling the C++ language support. This option is an easy way to go back to the PC-way where ˋlibstdc++ˋ is built. Signed-off-by: Quentin Boswank <qubos@outlook.de>
2023-08-12 18:11:58 +00:00
CT_DoExecLog CFG \
${CONFIG_SHELL} \
./configure \
--build=${CT_BUILD} \
--host=${CT_TARGET} \
--prefix=${CT_PREFIX_DIR} \
"${CT_LIBC_AVR_LIBC_EXTRA_CONFIG_ARRAY[@]}"
avr-libc: add support for avr-libc C library This commit adds support for the avr-libc C library. According to the project page at http://www.nongnu.org/avr-libc , the avr-libc package provides a subset of the standard C library for Atmel AVR 8-bit RISC microcontrollers. In addition, the library provides the basic startup code needed by most applications. Support for this library in crosstool-ng is only enabled for the AVR 8-bit target. The avr-libc manual and most distributions build the AVR 8-bit gcc toolchain with the "avr" (non-canonical) target. Some experimentation also led to the conclusion that other (canonical) targets are not very well supported, so we force the "avr" target for crosstool-ng as well. The manual also recommends building avr-libc after the final gcc build. To accomplish this with crosstool-ng, a new do_libc_post_cc step is added, in which currently only avr-libc performs its build, and is a no-op for the other libc options. Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
2015-06-21 23:53:06 +00:00
Add option to re-enable ˋlibstdc++ˋ on avr targets. Due to the small flash space on AVR devices the library containing the standard types in C++ (ˋlibstdc++ˋ) does not get built normally when enabling the C++ language support. This option is an easy way to go back to the PC-way where ˋlibstdc++ˋ is built. Signed-off-by: Quentin Boswank <qubos@outlook.de>
2023-08-12 18:11:58 +00:00
CT_DoLog EXTRA "Building C library"
CT_DoExecLog ALL make ${CT_JOBSFLAGS}
avr-libc: add support for avr-libc C library This commit adds support for the avr-libc C library. According to the project page at http://www.nongnu.org/avr-libc , the avr-libc package provides a subset of the standard C library for Atmel AVR 8-bit RISC microcontrollers. In addition, the library provides the basic startup code needed by most applications. Support for this library in crosstool-ng is only enabled for the AVR 8-bit target. The avr-libc manual and most distributions build the AVR 8-bit gcc toolchain with the "avr" (non-canonical) target. Some experimentation also led to the conclusion that other (canonical) targets are not very well supported, so we force the "avr" target for crosstool-ng as well. The manual also recommends building avr-libc after the final gcc build. To accomplish this with crosstool-ng, a new do_libc_post_cc step is added, in which currently only avr-libc performs its build, and is a no-op for the other libc options. Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
2015-06-21 23:53:06 +00:00
Add option to re-enable ˋlibstdc++ˋ on avr targets. Due to the small flash space on AVR devices the library containing the standard types in C++ (ˋlibstdc++ˋ) does not get built normally when enabling the C++ language support. This option is an easy way to go back to the PC-way where ˋlibstdc++ˋ is built. Signed-off-by: Quentin Boswank <qubos@outlook.de>
2023-08-12 18:11:58 +00:00
CT_DoLog EXTRA "Installing C library"
CT_DoExecLog ALL make install
avr-libc: add support for avr-libc C library This commit adds support for the avr-libc C library. According to the project page at http://www.nongnu.org/avr-libc , the avr-libc package provides a subset of the standard C library for Atmel AVR 8-bit RISC microcontrollers. In addition, the library provides the basic startup code needed by most applications. Support for this library in crosstool-ng is only enabled for the AVR 8-bit target. The avr-libc manual and most distributions build the AVR 8-bit gcc toolchain with the "avr" (non-canonical) target. Some experimentation also led to the conclusion that other (canonical) targets are not very well supported, so we force the "avr" target for crosstool-ng as well. The manual also recommends building avr-libc after the final gcc build. To accomplish this with crosstool-ng, a new do_libc_post_cc step is added, in which currently only avr-libc performs its build, and is a no-op for the other libc options. Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
2015-06-21 23:53:06 +00:00
Add option to re-enable ˋlibstdc++ˋ on avr targets. Due to the small flash space on AVR devices the library containing the standard types in C++ (ˋlibstdc++ˋ) does not get built normally when enabling the C++ language support. This option is an easy way to go back to the PC-way where ˋlibstdc++ˋ is built. Signed-off-by: Quentin Boswank <qubos@outlook.de>
2023-08-12 18:11:58 +00:00
CT_EndStep
fi
}
avr_libc_main()
{
if [ "${CT_CC_CORE_PASS_2_NEEDED}" = "y" ]; then
CT_DoStep INFO "Installing C library"
CT_DoLog EXTRA "Copying sources to build directory"
CT_DoExecLog ALL cp -av "${CT_SRC_DIR}/avr-libc/." \
"${CT_BUILD_DIR}/build-libc"
cd "${CT_BUILD_DIR}/build-libc"
CT_DoLog EXTRA "Configuring C library"
CT_DoExecLog CFG \
${CONFIG_SHELL} \
./configure \
--build=${CT_BUILD} \
--host=${CT_TARGET} \
--prefix=${CT_PREFIX_DIR} \
"${CT_LIBC_AVR_LIBC_EXTRA_CONFIG_ARRAY[@]}"
CT_DoLog EXTRA "Building C library"
CT_DoExecLog ALL make ${CT_JOBSFLAGS}
CT_DoLog EXTRA "Installing C library"
CT_DoExecLog ALL make install
CT_EndStep
fi
avr-libc: add support for avr-libc C library This commit adds support for the avr-libc C library. According to the project page at http://www.nongnu.org/avr-libc , the avr-libc package provides a subset of the standard C library for Atmel AVR 8-bit RISC microcontrollers. In addition, the library provides the basic startup code needed by most applications. Support for this library in crosstool-ng is only enabled for the AVR 8-bit target. The avr-libc manual and most distributions build the AVR 8-bit gcc toolchain with the "avr" (non-canonical) target. Some experimentation also led to the conclusion that other (canonical) targets are not very well supported, so we force the "avr" target for crosstool-ng as well. The manual also recommends building avr-libc after the final gcc build. To accomplish this with crosstool-ng, a new do_libc_post_cc step is added, in which currently only avr-libc performs its build, and is a no-op for the other libc options. Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
2015-06-21 23:53:06 +00:00
}
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