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https://github.com/crosstool-ng/crosstool-ng.git
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02d2b29cda
Ideally, eglibc should also benefit for that, but the current code does not set it. /trunk/scripts/build/libc/glibc.sh | 38 33 5 0 +++++++++++++++--- /trunk/config/libc/glibc.in | 4 2 2 0 +- /trunk/config/libc/uClibc.in | 2 2 0 0 + /trunk/config/libc/eglibc.in | 4 2 2 0 +- /trunk/config/libc/glibc-eglibc-common.in | 80 68 12 0 +++++++++++++++++++++++++++++++------ /trunk/config/libc.in | 69 38 31 0 ++++++++++++++++++-------------- 6 files changed, 145 insertions(+), 52 deletions(-)
121 lines
2.8 KiB
Plaintext
121 lines
2.8 KiB
Plaintext
# C library options
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config LIBC
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string
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default "none" if BARE_METAL
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default "glibc" if LIBC_GLIBC
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default "eglibc" if LIBC_EGLIBC
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default "uClibc" if LIBC_UCLIBC
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if ! BARE_METAL
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menu "C-library"
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config LIBC_VERSION
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string
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help
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Enter the date of the snapshot you want to use in the form: YYYYMMDD
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where YYYY is the 4-digit year, MM the 2-digit month and DD the 2-digit
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day in the month.
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Please note:
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- glibc has snapshots done every monday, and only the last ten are kept.
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- uClibc has daily snapshots, and only the last 30-or-so are kept.
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So if you want to be able to re-build your toolchain later, you will
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have to save your C library tarball by yourself.
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choice
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bool
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prompt "C-library to use:"
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default LIBC_GLIBC
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config LIBC_GLIBC
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bool
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prompt "glibc"
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select LIBC_SUPPORT_NPTL
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select LIBC_SUPPORT_LINUXTHREADS
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config LIBC_EGLIBC
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bool
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prompt "eglibc (EXPERIMENTAL)"
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select LIBC_SUPPORT_NPTL
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select LIBC_SUPPORT_LINUXTHREADS
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depends on EXPERIMENTAL
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help
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EGLIBC (Embedded GLIBC) is a variant of the standard GNU GLIBC
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that is designed to work well on embedded systems. EGLIBC strives
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to be source and binary compatible with GLIBC. Its goals include
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a reduced footprint, configurable components, and improved
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cross-compilation support. EGLIBC also includes some embedded ports
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(such as e500/spe) that are normally separate add-ons of GLIBC.
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config LIBC_UCLIBC
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bool
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prompt "uClibc"
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select LIBC_SUPPORT_LINUXTHREADS
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endchoice
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comment "Common C library options"
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config LIBC_SUPPORT_NPTL
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bool
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default n
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config LIBC_SUPPORT_LINUXTHREADS
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bool
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default n
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config THREADS
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string
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default "nptl" if THREADS_NPTL
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default "linuxthreads" if THREADS_LINUXTHREADS
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default "none" if THREADS_NONE
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choice
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bool
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prompt "Threading implementation to use:"
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default THREADS_NPTL if LIBC_SUPPORT_NPTL
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default THREADS_LINUXTHREADS if LIBC_SUPPORT_LINUXTHREADS && ! LIBC_SUPPORT_NPTL
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default THREADS_NONE if ! LIBC_SUPPORT_LINUXTHREADS && ! LIBC_SUPPORT_NPTL
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config THREADS_NPTL
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bool
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prompt "nptl"
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depends on LIBC_SUPPORT_NPTL
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config THREADS_LINUXTHREADS
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bool
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prompt "linuxthreads"
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depends on LIBC_SUPPORT_LINUXTHREADS
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config THREADS_NONE
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bool
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prompt "none"
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endchoice
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if LIBC_GLIBC
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source config/libc/glibc.in
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endif
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if LIBC_EGLIBC
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source config/libc/eglibc.in
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endif
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# Hack: mconf does not allow to include a file multiple times,
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# so include glibc and eglibc common options from here, rather
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# than from each config files.
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if LIBC_GLIBC || LIBC_EGLIBC
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source config/libc/glibc-eglibc-common.in
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endif
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if LIBC_UCLIBC
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source config/libc/uClibc.in
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endif
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endmenu
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endif # ! BARE_METAL
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